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gtk2/gtk/gtktext.c
Matthias Clasen 8912a6eb75 gtk: Handle seatless displays 
If you run weston with the headless backend, you get a Wayland
display with no seat, which is just fine by the protocol.

gdk_display_get_default_seat() returns NULL in this case. Various
widgets assume that we always have a seat with a keyboard and a
pointer, since that is what X guarantees. Make things survive
without that, so we can run the testsuite under a headless
Wayland compositor.
2020-05-15 14:11:53 -04:00

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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
* Copyright (C) 2004-2006 Christian Hammond
* Copyright (C) 2008 Cody Russell
* Copyright (C) 2008 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gtktextprivate.h"
#include "gtkactionable.h"
#include "gtkadjustment.h"
#include "gtkbox.h"
#include "gtkbutton.h"
#include "gtkcssnodeprivate.h"
#include "gtkdebug.h"
#include "gtkdragicon.h"
#include "gtkdragsource.h"
#include "gtkdroptarget.h"
#include "gtkeditable.h"
#include "gtkemojichooser.h"
#include "gtkemojicompletion.h"
#include "gtkentrybuffer.h"
#include "gtkeventcontrollerfocus.h"
#include "gtkeventcontrollerkey.h"
#include "gtkeventcontrollermotion.h"
#include "gtkgesturedrag.h"
#include "gtkgestureclick.h"
#include "gtkgesturesingle.h"
#include "gtkimageprivate.h"
#include "gtkimcontextsimple.h"
#include "gtkimmulticontext.h"
#include "gtkintl.h"
#include "gtklabel.h"
#include "gtkmagnifierprivate.h"
#include "gtkmain.h"
#include "gtkmarshalers.h"
#include "gtkpango.h"
#include "gtkpopovermenu.h"
#include "gtkprivate.h"
#include "gtksettings.h"
#include "gtksnapshot.h"
#include "gtkstylecontextprivate.h"
#include "gtktexthandleprivate.h"
#include "gtktexthistoryprivate.h"
#include "gtktextutil.h"
#include "gtktooltip.h"
#include "gtktreeselection.h"
#include "gtktreeview.h"
#include "gtktypebuiltins.h"
#include "gtkwidgetprivate.h"
#include "gtkwindow.h"
#include "gtknative.h"
#include "gtkactionmuxerprivate.h"
#include "a11y/gtktextaccessible.h"
#include <cairo-gobject.h>
#include <string.h>
#include "fallback-c89.c"
/**
* SECTION:gtktext
* @Short_description: A simple single-line text entry field
* @Title: GtkText
* @See_also: #GtkEntry, #GtkTextView
*
* The #GtkText widget is a single line text entry widget.
*
* A fairly large set of key bindings are supported by default. If the
* entered text is longer than the allocation of the widget, the widget
* will scroll so that the cursor position is visible.
*
* When using an entry for passwords and other sensitive information,
* it can be put into “password mode” using gtk_text_set_visibility().
* In this mode, entered text is displayed using a “invisible” character.
* By default, GTK picks the best invisible character that is available
* in the current font, but it can be changed with gtk_text_set_invisible_char().
*
* If you are looking to add icons or progress display in an entry, look
* at #GtkEntry. There other alternatives for more specialized use cases,
* such as #GtkSearchEntry.
*
* If you need multi-line editable text, look at #GtkTextView.
*
* # CSS nodes
*
* |[<!-- language="plain" -->
* text[.read-only]
* ├── placeholder
* ├── undershoot.left
* ├── undershoot.right
* ├── [selection]
* ├── [block-cursor]
* ╰── [window.popup]
* ]|
*
* GtkText has a main node with the name text. Depending on the properties
* of the widget, the .read-only style class may appear.
*
* When the entry has a selection, it adds a subnode with the name selection.
*
* When the entry is in overwrite mode, it adds a subnode with the name block-cursor
* that determines how the block cursor is drawn.
*
* The CSS node for a context menu is added as a subnode below text as well.
*
* The undershoot nodes are used to draw the underflow indication when content
* is scrolled out of view. These nodes get the .left and .right style classes
* added depending on where the indication is drawn.
*
* When touch is used and touch selection handles are shown, they are using
* CSS nodes with name cursor-handle. They get the .top or .bottom style class
* depending on where they are shown in relation to the selection. If there is
* just a single handle for the text cursor, it gets the style class .insertion-cursor.
*/
#define NAT_ENTRY_WIDTH 150
#define UNDERSHOOT_SIZE 20
#define DEFAULT_MAX_UNDO 200
static GQuark quark_password_hint = 0;
enum
{
TEXT_HANDLE_CURSOR,
TEXT_HANDLE_SELECTION_BOUND,
TEXT_HANDLE_N_HANDLES
};
typedef struct _GtkTextPasswordHint GtkTextPasswordHint;
typedef struct _GtkTextPrivate GtkTextPrivate;
struct _GtkTextPrivate
{
GtkEntryBuffer *buffer;
GtkIMContext *im_context;
int text_baseline;
PangoLayout *cached_layout;
PangoAttrList *attrs;
PangoTabArray *tabs;
GdkContentProvider *selection_content;
char *im_module;
GtkWidget *emoji_completion;
GtkTextHandle *text_handles[TEXT_HANDLE_N_HANDLES];
GtkWidget *selection_bubble;
guint selection_bubble_timeout_id;
GtkWidget *magnifier_popover;
GtkWidget *magnifier;
GtkWidget *placeholder;
GtkGesture *drag_gesture;
GtkEventController *key_controller;
GtkCssNode *selection_node;
GtkCssNode *block_cursor_node;
GtkCssNode *undershoot_node[2];
GtkWidget *popup_menu;
GMenuModel *extra_menu;
GtkTextHistory *history;
GdkDrag *drag;
float xalign;
int ascent; /* font ascent in pango units */
int current_pos;
int descent; /* font descent in pango units */
int dnd_position; /* In chars, -1 == no DND cursor */
int drag_start_x;
int drag_start_y;
int insert_pos;
int selection_bound;
int scroll_offset;
int width_chars;
int max_width_chars;
gunichar invisible_char;
guint64 blink_start_time;
guint blink_tick;
float cursor_alpha;
guint16 preedit_length; /* length of preedit string, in bytes */
guint16 preedit_cursor; /* offset of cursor within preedit string, in chars */
gint64 handle_place_time;
guint editable : 1;
guint enable_emoji_completion : 1;
guint in_drag : 1;
guint overwrite_mode : 1;
guint visible : 1;
guint activates_default : 1;
guint cache_includes_preedit : 1;
guint change_count : 8;
guint in_click : 1; /* Flag so we don't select all when clicking in entry to focus in */
guint invisible_char_set : 1;
guint mouse_cursor_obscured : 1;
guint need_im_reset : 1;
guint real_changed : 1;
guint resolved_dir : 4; /* PangoDirection */
guint select_words : 1;
guint select_lines : 1;
guint truncate_multiline : 1;
guint cursor_handle_dragged : 1;
guint selection_handle_dragged : 1;
guint populate_all : 1;
guint propagate_text_width : 1;
guint text_handles_enabled : 1;
};
struct _GtkTextPasswordHint
{
int position; /* Position (in text) of the last password hint */
guint source_id; /* Timeout source id */
};
enum {
ACTIVATE,
MOVE_CURSOR,
INSERT_AT_CURSOR,
DELETE_FROM_CURSOR,
BACKSPACE,
CUT_CLIPBOARD,
COPY_CLIPBOARD,
PASTE_CLIPBOARD,
TOGGLE_OVERWRITE,
PREEDIT_CHANGED,
INSERT_EMOJI,
LAST_SIGNAL
};
enum {
PROP_0,
PROP_BUFFER,
PROP_MAX_LENGTH,
PROP_VISIBILITY,
PROP_INVISIBLE_CHAR,
PROP_INVISIBLE_CHAR_SET,
PROP_ACTIVATES_DEFAULT,
PROP_SCROLL_OFFSET,
PROP_TRUNCATE_MULTILINE,
PROP_OVERWRITE_MODE,
PROP_IM_MODULE,
PROP_PLACEHOLDER_TEXT,
PROP_INPUT_PURPOSE,
PROP_INPUT_HINTS,
PROP_ATTRIBUTES,
PROP_TABS,
PROP_ENABLE_EMOJI_COMPLETION,
PROP_PROPAGATE_TEXT_WIDTH,
PROP_EXTRA_MENU,
NUM_PROPERTIES
};
static GParamSpec *text_props[NUM_PROPERTIES] = { NULL, };
static guint signals[LAST_SIGNAL] = { 0 };
typedef enum {
CURSOR_STANDARD,
CURSOR_DND
} CursorType;
typedef enum
{
DISPLAY_NORMAL, /* The text is being shown */
DISPLAY_INVISIBLE, /* In invisible mode, text replaced by (eg) bullets */
DISPLAY_BLANK /* In invisible mode, nothing shown at all */
} DisplayMode;
/* GObject methods
*/
static void gtk_text_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_text_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gtk_text_finalize (GObject *object);
static void gtk_text_dispose (GObject *object);
/* GtkWidget methods
*/
static void gtk_text_realize (GtkWidget *widget);
static void gtk_text_unrealize (GtkWidget *widget);
static void gtk_text_unmap (GtkWidget *widget);
static void gtk_text_measure (GtkWidget *widget,
GtkOrientation orientation,
int for_size,
int *minimum,
int *natural,
int *minimum_baseline,
int *natural_baseline);
static void gtk_text_size_allocate (GtkWidget *widget,
int width,
int height,
int baseline);
static void gtk_text_snapshot (GtkWidget *widget,
GtkSnapshot *snapshot);
static void gtk_text_focus_in (GtkWidget *widget);
static void gtk_text_focus_out (GtkWidget *widget);
static gboolean gtk_text_grab_focus (GtkWidget *widget);
static void gtk_text_css_changed (GtkWidget *widget,
GtkCssStyleChange *change);
static void gtk_text_direction_changed (GtkWidget *widget,
GtkTextDirection previous_dir);
static void gtk_text_state_flags_changed (GtkWidget *widget,
GtkStateFlags previous_state);
static void gtk_text_root (GtkWidget *widget);
static gboolean gtk_text_drag_drop (GtkDropTarget *dest,
const GValue *value,
double x,
double y,
GtkText *text);
static gboolean gtk_text_drag_accept (GtkDropTarget *dest,
GdkDrop *drop,
GtkText *self);
static GdkDragAction gtk_text_drag_motion (GtkDropTarget *dest,
double x,
double y,
GtkText *text);
static void gtk_text_drag_leave (GtkDropTarget *dest,
GtkText *text);
/* GtkEditable method implementations
*/
static void gtk_text_editable_init (GtkEditableInterface *iface);
static void gtk_text_insert_text (GtkText *self,
const char *text,
int length,
int *position);
static void gtk_text_delete_text (GtkText *self,
int start_pos,
int end_pos);
static void gtk_text_delete_selection (GtkText *self);
static void gtk_text_set_selection_bounds (GtkText *self,
int start,
int end);
static gboolean gtk_text_get_selection_bounds (GtkText *self,
int *start,
int *end);
static void gtk_text_set_editable (GtkText *self,
gboolean is_editable);
static void gtk_text_set_text (GtkText *self,
const char *text);
static void gtk_text_set_width_chars (GtkText *self,
int n_chars);
static void gtk_text_set_max_width_chars (GtkText *self,
int n_chars);
static void gtk_text_set_alignment (GtkText *self,
float xalign);
/* Default signal handlers
*/
static GMenuModel *gtk_text_get_menu_model (GtkText *self);
static void gtk_text_popup_menu (GtkWidget *widget,
const char *action_name,
GVariant *parameters);
static void gtk_text_move_cursor (GtkText *self,
GtkMovementStep step,
int count,
gboolean extend);
static void gtk_text_insert_at_cursor (GtkText *self,
const char *str);
static void gtk_text_delete_from_cursor (GtkText *self,
GtkDeleteType type,
int count);
static void gtk_text_backspace (GtkText *self);
static void gtk_text_cut_clipboard (GtkText *self);
static void gtk_text_copy_clipboard (GtkText *self);
static void gtk_text_paste_clipboard (GtkText *self);
static void gtk_text_toggle_overwrite (GtkText *self);
static void gtk_text_insert_emoji (GtkText *self);
static void gtk_text_select_all (GtkText *self);
static void gtk_text_real_activate (GtkText *self);
static void direction_changed (GdkDevice *keyboard,
GParamSpec *pspec,
GtkText *self);
/* IM Context Callbacks
*/
static void gtk_text_commit_cb (GtkIMContext *context,
const char *str,
GtkText *self);
static void gtk_text_preedit_changed_cb (GtkIMContext *context,
GtkText *self);
static gboolean gtk_text_retrieve_surrounding_cb (GtkIMContext *context,
GtkText *self);
static gboolean gtk_text_delete_surrounding_cb (GtkIMContext *context,
int offset,
int n_chars,
GtkText *self);
/* Entry buffer signal handlers
*/
static void buffer_inserted_text (GtkEntryBuffer *buffer,
guint position,
const char *chars,
guint n_chars,
GtkText *self);
static void buffer_deleted_text (GtkEntryBuffer *buffer,
guint position,
guint n_chars,
GtkText *self);
static void buffer_notify_text (GtkEntryBuffer *buffer,
GParamSpec *spec,
GtkText *self);
static void buffer_notify_max_length (GtkEntryBuffer *buffer,
GParamSpec *spec,
GtkText *self);
/* Event controller callbacks
*/
static void gtk_text_motion_controller_motion (GtkEventControllerMotion *controller,
double x,
double y,
GtkText *self);
static void gtk_text_click_gesture_pressed (GtkGestureClick *gesture,
int n_press,
double x,
double y,
GtkText *self);
static void gtk_text_drag_gesture_update (GtkGestureDrag *gesture,
double offset_x,
double offset_y,
GtkText *self);
static void gtk_text_drag_gesture_end (GtkGestureDrag *gesture,
double offset_x,
double offset_y,
GtkText *self);
static gboolean gtk_text_key_controller_key_pressed (GtkEventControllerKey *controller,
guint keyval,
guint keycode,
GdkModifierType state,
GtkText *self);
/* GtkTextHandle handlers */
static void gtk_text_handle_drag_started (GtkTextHandle *handle,
GtkText *self);
static void gtk_text_handle_dragged (GtkTextHandle *handle,
int x,
int y,
GtkText *self);
static void gtk_text_handle_drag_finished (GtkTextHandle *handle,
GtkText *self);
/* Internal routines
*/
static void gtk_text_draw_text (GtkText *self,
GtkSnapshot *snapshot);
static void gtk_text_draw_cursor (GtkText *self,
GtkSnapshot *snapshot,
CursorType type);
static PangoLayout *gtk_text_ensure_layout (GtkText *self,
gboolean include_preedit);
static void gtk_text_reset_layout (GtkText *self);
static void gtk_text_recompute (GtkText *self);
static int gtk_text_find_position (GtkText *self,
int x);
static void gtk_text_get_cursor_locations (GtkText *self,
int *strong_x,
int *weak_x);
static void gtk_text_adjust_scroll (GtkText *self);
static int gtk_text_move_visually (GtkText *editable,
int start,
int count);
static int gtk_text_move_logically (GtkText *self,
int start,
int count);
static int gtk_text_move_forward_word (GtkText *self,
int start,
gboolean allow_whitespace);
static int gtk_text_move_backward_word (GtkText *self,
int start,
gboolean allow_whitespace);
static void gtk_text_delete_whitespace (GtkText *self);
static void gtk_text_select_word (GtkText *self);
static void gtk_text_select_line (GtkText *self);
static void gtk_text_paste (GtkText *self,
GdkClipboard *clipboard);
static void gtk_text_update_primary_selection (GtkText *self);
static void gtk_text_schedule_im_reset (GtkText *self);
static gboolean gtk_text_mnemonic_activate (GtkWidget *widget,
gboolean group_cycling);
static void gtk_text_check_cursor_blink (GtkText *self);
static void gtk_text_pend_cursor_blink (GtkText *self);
static void gtk_text_reset_blink_time (GtkText *self);
static void gtk_text_update_cached_style_values(GtkText *self);
static gboolean get_middle_click_paste (GtkText *self);
static void gtk_text_get_scroll_limits (GtkText *self,
int *min_offset,
int *max_offset);
static GtkEntryBuffer *get_buffer (GtkText *self);
static void set_enable_emoji_completion (GtkText *self,
gboolean value);
static void set_text_cursor (GtkWidget *widget);
static void update_placeholder_visibility (GtkText *self);
static void buffer_connect_signals (GtkText *self);
static void buffer_disconnect_signals (GtkText *self);
static void gtk_text_selection_bubble_popup_set (GtkText *self);
static void gtk_text_selection_bubble_popup_unset (GtkText *self);
static void begin_change (GtkText *self);
static void end_change (GtkText *self);
static void emit_changed (GtkText *self);
static void gtk_text_update_clipboard_actions (GtkText *self);
static void gtk_text_update_emoji_action (GtkText *self);
static void gtk_text_update_handles (GtkText *self);
static void gtk_text_activate_clipboard_cut (GtkWidget *widget,
const char *action_name,
GVariant *parameter);
static void gtk_text_activate_clipboard_copy (GtkWidget *widget,
const char *action_name,
GVariant *parameter);
static void gtk_text_activate_clipboard_paste (GtkWidget *widget,
const char *action_name,
GVariant *parameter);
static void gtk_text_activate_selection_delete (GtkWidget *widget,
const char *action_name,
GVariant *parameter);
static void gtk_text_activate_selection_select_all (GtkWidget *widget,
const char *action_name,
GVariant *parameter);
static void gtk_text_activate_misc_insert_emoji (GtkWidget *widget,
const char *action_name,
GVariant *parameter);
static void gtk_text_real_undo (GtkWidget *widget,
const char *action_name,
GVariant *parameters);
static void gtk_text_real_redo (GtkWidget *widget,
const char *action_name,
GVariant *parameters);
static void gtk_text_history_change_state_cb (gpointer funcs_data,
gboolean is_modified,
gboolean can_undo,
gboolean can_redo);
static void gtk_text_history_insert_cb (gpointer funcs_data,
guint begin,
guint end,
const char *text,
guint len);
static void gtk_text_history_delete_cb (gpointer funcs_data,
guint begin,
guint end,
const char *expected_text,
guint len);
static void gtk_text_history_select_cb (gpointer funcs_data,
int selection_insert,
int selection_bound);
/* GtkTextContent implementation
*/
#define GTK_TYPE_TEXT_CONTENT (gtk_text_content_get_type ())
#define GTK_TEXT_CONTENT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_TEXT_CONTENT, GtkTextContent))
#define GTK_IS_TEXT_CONTENT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_TEXT_CONTENT))
#define GTK_TEXT_CONTENT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_TEXT_CONTENT, GtkTextContentClass))
#define GTK_IS_TEXT_CONTENT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_TEXT_CONTENT))
#define GTK_TEXT_CONTENT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_TEXT_CONTENT, GtkTextContentClass))
typedef struct _GtkTextContent GtkTextContent;
typedef struct _GtkTextContentClass GtkTextContentClass;
struct _GtkTextContent
{
GdkContentProvider parent;
GtkText *self;
};
struct _GtkTextContentClass
{
GdkContentProviderClass parent_class;
};
GType gtk_text_content_get_type (void) G_GNUC_CONST;
G_DEFINE_TYPE (GtkTextContent, gtk_text_content, GDK_TYPE_CONTENT_PROVIDER)
static GdkContentFormats *
gtk_text_content_ref_formats (GdkContentProvider *provider)
{
return gdk_content_formats_new_for_gtype (G_TYPE_STRING);
}
static gboolean
gtk_text_content_get_value (GdkContentProvider *provider,
GValue *value,
GError **error)
{
GtkTextContent *content = GTK_TEXT_CONTENT (provider);
if (G_VALUE_HOLDS (value, G_TYPE_STRING))
{
int start, end;
if (gtk_text_get_selection_bounds (content->self, &start, &end))
{
char *str = gtk_text_get_display_text (content->self, start, end);
g_value_take_string (value, str);
}
return TRUE;
}
return GDK_CONTENT_PROVIDER_CLASS (gtk_text_content_parent_class)->get_value (provider, value, error);
}
static void
gtk_text_content_detach (GdkContentProvider *provider,
GdkClipboard *clipboard)
{
GtkTextContent *content = GTK_TEXT_CONTENT (provider);
int current_pos, selection_bound;
gtk_text_get_selection_bounds (content->self, &current_pos, &selection_bound);
gtk_text_set_selection_bounds (content->self, current_pos, current_pos);
}
static void
gtk_text_content_class_init (GtkTextContentClass *class)
{
GdkContentProviderClass *provider_class = GDK_CONTENT_PROVIDER_CLASS (class);
provider_class->ref_formats = gtk_text_content_ref_formats;
provider_class->get_value = gtk_text_content_get_value;
provider_class->detach_clipboard = gtk_text_content_detach;
}
static void
gtk_text_content_init (GtkTextContent *content)
{
}
/* GtkText
*/
static const GtkTextHistoryFuncs history_funcs = {
gtk_text_history_change_state_cb,
gtk_text_history_insert_cb,
gtk_text_history_delete_cb,
gtk_text_history_select_cb,
};
G_DEFINE_TYPE_WITH_CODE (GtkText, gtk_text, GTK_TYPE_WIDGET,
G_ADD_PRIVATE (GtkText)
G_IMPLEMENT_INTERFACE (GTK_TYPE_EDITABLE, gtk_text_editable_init))
static void
add_move_binding (GtkWidgetClass *widget_class,
guint keyval,
guint modmask,
GtkMovementStep step,
int count)
{
g_return_if_fail ((modmask & GDK_SHIFT_MASK) == 0);
gtk_widget_class_add_binding_signal (widget_class,
keyval, modmask,
"move-cursor",
"(iib)", step, count, FALSE);
/* Selection-extending version */
gtk_widget_class_add_binding_signal (widget_class,
keyval, modmask | GDK_SHIFT_MASK,
"move-cursor",
"(iib)", step, count, TRUE);
}
static void
gtk_text_class_init (GtkTextClass *class)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (class);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
gobject_class->dispose = gtk_text_dispose;
gobject_class->finalize = gtk_text_finalize;
gobject_class->set_property = gtk_text_set_property;
gobject_class->get_property = gtk_text_get_property;
widget_class->unmap = gtk_text_unmap;
widget_class->realize = gtk_text_realize;
widget_class->unrealize = gtk_text_unrealize;
widget_class->measure = gtk_text_measure;
widget_class->size_allocate = gtk_text_size_allocate;
widget_class->snapshot = gtk_text_snapshot;
widget_class->grab_focus = gtk_text_grab_focus;
widget_class->css_changed = gtk_text_css_changed;
widget_class->direction_changed = gtk_text_direction_changed;
widget_class->state_flags_changed = gtk_text_state_flags_changed;
widget_class->root = gtk_text_root;
widget_class->mnemonic_activate = gtk_text_mnemonic_activate;
class->move_cursor = gtk_text_move_cursor;
class->insert_at_cursor = gtk_text_insert_at_cursor;
class->delete_from_cursor = gtk_text_delete_from_cursor;
class->backspace = gtk_text_backspace;
class->cut_clipboard = gtk_text_cut_clipboard;
class->copy_clipboard = gtk_text_copy_clipboard;
class->paste_clipboard = gtk_text_paste_clipboard;
class->toggle_overwrite = gtk_text_toggle_overwrite;
class->insert_emoji = gtk_text_insert_emoji;
class->activate = gtk_text_real_activate;
quark_password_hint = g_quark_from_static_string ("gtk-entry-password-hint");
text_props[PROP_BUFFER] =
g_param_spec_object ("buffer",
P_("Text Buffer"),
P_("Text buffer object which actually stores self text"),
GTK_TYPE_ENTRY_BUFFER,
GTK_PARAM_READWRITE|G_PARAM_CONSTRUCT|G_PARAM_EXPLICIT_NOTIFY);
text_props[PROP_MAX_LENGTH] =
g_param_spec_int ("max-length",
P_("Maximum length"),
P_("Maximum number of characters for this self. Zero if no maximum"),
0, GTK_ENTRY_BUFFER_MAX_SIZE,
0,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
text_props[PROP_INVISIBLE_CHAR] =
g_param_spec_unichar ("invisible-char",
P_("Invisible character"),
P_("The character to use when masking self contents (in “password mode”)"),
'*',
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
text_props[PROP_ACTIVATES_DEFAULT] =
g_param_spec_boolean ("activates-default",
P_("Activates default"),
P_("Whether to activate the default widget (such as the default button in a dialog) when Enter is pressed"),
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
text_props[PROP_SCROLL_OFFSET] =
g_param_spec_int ("scroll-offset",
P_("Scroll offset"),
P_("Number of pixels of the self scrolled off the screen to the left"),
0, G_MAXINT,
0,
GTK_PARAM_READABLE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkText:truncate-multiline:
*
* When %TRUE, pasted multi-line text is truncated to the first line.
*/
text_props[PROP_TRUNCATE_MULTILINE] =
g_param_spec_boolean ("truncate-multiline",
P_("Truncate multiline"),
P_("Whether to truncate multiline pastes to one line."),
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkText:overwrite-mode:
*
* If text is overwritten when typing in the #GtkText.
*/
text_props[PROP_OVERWRITE_MODE] =
g_param_spec_boolean ("overwrite-mode",
P_("Overwrite mode"),
P_("Whether new text overwrites existing text"),
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkText:invisible-char-set:
*
* Whether the invisible char has been set for the #GtkText.
*/
text_props[PROP_INVISIBLE_CHAR_SET] =
g_param_spec_boolean ("invisible-char-set",
P_("Invisible character set"),
P_("Whether the invisible character has been set"),
FALSE,
GTK_PARAM_READWRITE);
/**
* GtkText:placeholder-text:
*
* The text that will be displayed in the #GtkText when it is empty
* and unfocused.
*/
text_props[PROP_PLACEHOLDER_TEXT] =
g_param_spec_string ("placeholder-text",
P_("Placeholder text"),
P_("Show text in the self when it’s empty and unfocused"),
NULL,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkText:im-module:
*
* Which IM (input method) module should be used for this self.
* See #GtkIMContext.
*
* Setting this to a non-%NULL value overrides the
* system-wide IM module setting. See the GtkSettings
* #GtkSettings:gtk-im-module property.
*/
text_props[PROP_IM_MODULE] =
g_param_spec_string ("im-module",
P_("IM module"),
P_("Which IM module should be used"),
NULL,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkText:input-purpose:
*
* The purpose of this text field.
*
* This property can be used by on-screen keyboards and other input
* methods to adjust their behaviour.
*
* Note that setting the purpose to %GTK_INPUT_PURPOSE_PASSWORD or
* %GTK_INPUT_PURPOSE_PIN is independent from setting
* #GtkText:visibility.
*/
text_props[PROP_INPUT_PURPOSE] =
g_param_spec_enum ("input-purpose",
P_("Purpose"),
P_("Purpose of the text field"),
GTK_TYPE_INPUT_PURPOSE,
GTK_INPUT_PURPOSE_FREE_FORM,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkText:input-hints:
*
* Additional hints (beyond #GtkText:input-purpose) that
* allow input methods to fine-tune their behaviour.
*/
text_props[PROP_INPUT_HINTS] =
g_param_spec_flags ("input-hints",
P_("hints"),
P_("Hints for the text field behaviour"),
GTK_TYPE_INPUT_HINTS,
GTK_INPUT_HINT_NONE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkText:attributes:
*
* A list of Pango attributes to apply to the text of the self.
*
* This is mainly useful to change the size or weight of the text.
*
* The #PangoAttribute's @start_index and @end_index must refer to the
* #GtkEntryBuffer text, i.e. without the preedit string.
*/
text_props[PROP_ATTRIBUTES] =
g_param_spec_boxed ("attributes",
P_("Attributes"),
P_("A list of style attributes to apply to the text of the self"),
PANGO_TYPE_ATTR_LIST,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkText:tabs:
*
* A list of tabstops to apply to the text of the self.
*/
text_props[PROP_TABS] =
g_param_spec_boxed ("tabs",
P_("Tabs"),
P_("A list of tabstop locations to apply to the text of the self"),
PANGO_TYPE_TAB_ARRAY,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
text_props[PROP_ENABLE_EMOJI_COMPLETION] =
g_param_spec_boolean ("enable-emoji-completion",
P_("Enable Emoji completion"),
P_("Whether to suggest Emoji replacements"),
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
text_props[PROP_VISIBILITY] =
g_param_spec_boolean ("visibility",
P_("Visibility"),
P_("FALSE displays the “invisible char” instead of the actual text (password mode)"),
TRUE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
text_props[PROP_PROPAGATE_TEXT_WIDTH] =
g_param_spec_boolean ("propagate-text-width",
P_("Propagate text width"),
P_("Whether the entry should grow and shrink with the content"),
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkText:extra-menu:
*
* A menu model whose contents will be appended to
* the context menu.
*/
text_props[PROP_EXTRA_MENU] =
g_param_spec_object ("extra-menu",
P_("Extra menu"),
P_("Menu model to append to the context menu"),
G_TYPE_MENU_MODEL,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
g_object_class_install_properties (gobject_class, NUM_PROPERTIES, text_props);
gtk_editable_install_properties (gobject_class, NUM_PROPERTIES);
/* Action signals */
/**
* GtkText::activate:
* @self: The self on which the signal is emitted
*
* The ::activate signal is emitted when the user hits
* the Enter key.
*
* The default bindings for this signal are all forms of the Enter key.
*/
signals[ACTIVATE] =
g_signal_new (I_("activate"),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTextClass, activate),
NULL, NULL,
NULL,
G_TYPE_NONE, 0);
/**
* GtkText::move-cursor:
* @self: the object which received the signal
* @step: the granularity of the move, as a #GtkMovementStep
* @count: the number of @step units to move
* @extend: %TRUE if the move should extend the selection
*
* The ::move-cursor signal is a
* [keybinding signal][GtkBindingSignal]
* which gets emitted when the user initiates a cursor movement.
* If the cursor is not visible in @self, this signal causes
* the viewport to be moved instead.
*
* Applications should not connect to it, but may emit it with
* g_signal_emit_by_name() if they need to control the cursor
* programmatically.
*
* The default bindings for this signal come in two variants,
* the variant with the Shift modifier extends the selection,
* the variant without the Shift modifer does not.
* There are too many key combinations to list them all here.
* - Arrow keys move by individual characters/lines
* - Ctrl-arrow key combinations move by words/paragraphs
* - Home/End keys move to the ends of the buffer
*/
signals[MOVE_CURSOR] =
g_signal_new (I_("move-cursor"),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTextClass, move_cursor),
NULL, NULL,
_gtk_marshal_VOID__ENUM_INT_BOOLEAN,
G_TYPE_NONE, 3,
GTK_TYPE_MOVEMENT_STEP,
G_TYPE_INT,
G_TYPE_BOOLEAN);
/**
* GtkText::insert-at-cursor:
* @self: the object which received the signal
* @string: the string to insert
*
* The ::insert-at-cursor signal is a
* [keybinding signal][GtkBindingSignal]
* which gets emitted when the user initiates the insertion of a
* fixed string at the cursor.
*
* This signal has no default bindings.
*/
signals[INSERT_AT_CURSOR] =
g_signal_new (I_("insert-at-cursor"),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTextClass, insert_at_cursor),
NULL, NULL,
NULL,
G_TYPE_NONE, 1,
G_TYPE_STRING);
/**
* GtkText::delete-from-cursor:
* @self: the object which received the signal
* @type: the granularity of the deletion, as a #GtkDeleteType
* @count: the number of @type units to delete
*
* The ::delete-from-cursor signal is a
* [keybinding signal][GtkBindingSignal]
* which gets emitted when the user initiates a text deletion.
*
* If the @type is %GTK_DELETE_CHARS, GTK deletes the selection
* if there is one, otherwise it deletes the requested number
* of characters.
*
* The default bindings for this signal are
* Delete for deleting a character and Ctrl-Delete for
* deleting a word.
*/
signals[DELETE_FROM_CURSOR] =
g_signal_new (I_("delete-from-cursor"),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTextClass, delete_from_cursor),
NULL, NULL,
_gtk_marshal_VOID__ENUM_INT,
G_TYPE_NONE, 2,
GTK_TYPE_DELETE_TYPE,
G_TYPE_INT);
/**
* GtkText::backspace:
* @self: the object which received the signal
*
* The ::backspace signal is a
* [keybinding signal][GtkBindingSignal]
* which gets emitted when the user asks for it.
*
* The default bindings for this signal are
* Backspace and Shift-Backspace.
*/
signals[BACKSPACE] =
g_signal_new (I_("backspace"),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTextClass, backspace),
NULL, NULL,
NULL,
G_TYPE_NONE, 0);
/**
* GtkText::cut-clipboard:
* @self: the object which received the signal
*
* The ::cut-clipboard signal is a
* [keybinding signal][GtkBindingSignal]
* which gets emitted to cut the selection to the clipboard.
*
* The default bindings for this signal are
* Ctrl-x and Shift-Delete.
*/
signals[CUT_CLIPBOARD] =
g_signal_new (I_("cut-clipboard"),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTextClass, cut_clipboard),
NULL, NULL,
NULL,
G_TYPE_NONE, 0);
/**
* GtkText::copy-clipboard:
* @self: the object which received the signal
*
* The ::copy-clipboard signal is a
* [keybinding signal][GtkBindingSignal]
* which gets emitted to copy the selection to the clipboard.
*
* The default bindings for this signal are
* Ctrl-c and Ctrl-Insert.
*/
signals[COPY_CLIPBOARD] =
g_signal_new (I_("copy-clipboard"),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTextClass, copy_clipboard),
NULL, NULL,
NULL,
G_TYPE_NONE, 0);
/**
* GtkText::paste-clipboard:
* @self: the object which received the signal
*
* The ::paste-clipboard signal is a
* [keybinding signal][GtkBindingSignal]
* which gets emitted to paste the contents of the clipboard
* into the text view.
*
* The default bindings for this signal are
* Ctrl-v and Shift-Insert.
*/
signals[PASTE_CLIPBOARD] =
g_signal_new (I_("paste-clipboard"),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTextClass, paste_clipboard),
NULL, NULL,
NULL,
G_TYPE_NONE, 0);
/**
* GtkText::toggle-overwrite:
* @self: the object which received the signal
*
* The ::toggle-overwrite signal is a
* [keybinding signal][GtkBindingSignal]
* which gets emitted to toggle the overwrite mode of the self.
*
* The default bindings for this signal is Insert.
*/
signals[TOGGLE_OVERWRITE] =
g_signal_new (I_("toggle-overwrite"),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTextClass, toggle_overwrite),
NULL, NULL,
NULL,
G_TYPE_NONE, 0);
/**
* GtkText::preedit-changed:
* @self: the object which received the signal
* @preedit: the current preedit string
*
* If an input method is used, the typed text will not immediately
* be committed to the buffer. So if you are interested in the text,
* connect to this signal.
*/
signals[PREEDIT_CHANGED] =
g_signal_new_class_handler (I_("preedit-changed"),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
NULL,
NULL, NULL,
NULL,
G_TYPE_NONE, 1,
G_TYPE_STRING);
/**
* GtkText::insert-emoji:
* @self: the object which received the signal
*
* The ::insert-emoji signal is a
* [keybinding signal][GtkBindingSignal]
* which gets emitted to present the Emoji chooser for the @self.
*
* The default bindings for this signal are Ctrl-. and Ctrl-;
*/
signals[INSERT_EMOJI] =
g_signal_new (I_("insert-emoji"),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (GtkTextClass, insert_emoji),
NULL, NULL,
NULL,
G_TYPE_NONE, 0);
/*
* Actions
*/
/**
* GtkText|clipboard.cut:
*
* Copies the contents to the clipboard and deletes it from the widget.
*/
gtk_widget_class_install_action (widget_class, "clipboard.cut", NULL,
gtk_text_activate_clipboard_cut);
/**
* GtkText|clipboard.copy:
*
* Copies the contents to the clipboard.
*/
gtk_widget_class_install_action (widget_class, "clipboard.copy", NULL,
gtk_text_activate_clipboard_copy);
/**
* GtkText|clipboard.paste:
*
* Inserts the contents of the clipboard into the widget.
*/
gtk_widget_class_install_action (widget_class, "clipboard.paste", NULL,
gtk_text_activate_clipboard_paste);
/**
* GtkText|selection.delete:
*
* Deletes the current selection.
*/
gtk_widget_class_install_action (widget_class, "selection.delete", NULL,
gtk_text_activate_selection_delete);
/**
* GtkText|selection.select-all:
*
* Selects all of the widgets content.
*/
gtk_widget_class_install_action (widget_class, "selection.select-all", NULL,
gtk_text_activate_selection_select_all);
/**
* GtkText|misc.insert-emoji:
*
* Opens the Emoji chooser.
*/
gtk_widget_class_install_action (widget_class, "misc.insert-emoji", NULL,
gtk_text_activate_misc_insert_emoji);
/**
* GtkText|misc.toggle-visibility:
*
* Toggles the #GtkText:visibility property.
*/
gtk_widget_class_install_property_action (widget_class,
"misc.toggle-visibility",
"visibility");
/**
* GtkText|text.undo:
*
* Undoes the last change to the contents.
*/
gtk_widget_class_install_action (widget_class, "text.undo", NULL, gtk_text_real_undo);
/**
* GtkText|text.redo:
*
* Redoes the last change to the contents.
*/
gtk_widget_class_install_action (widget_class, "text.redo", NULL, gtk_text_real_redo);
/**
* GtkText|menu.popup:
*
* Opens the context menu.
*/
gtk_widget_class_install_action (widget_class, "menu.popup", NULL, gtk_text_popup_menu);
/*
* Key bindings
*/
gtk_widget_class_add_binding_action (widget_class,
GDK_KEY_F10, GDK_SHIFT_MASK,
"menu.popup",
NULL);
gtk_widget_class_add_binding_action (widget_class,
GDK_KEY_Menu, 0,
"menu.popup",
NULL);
/* Moving the insertion point */
add_move_binding (widget_class, GDK_KEY_Right, 0,
GTK_MOVEMENT_VISUAL_POSITIONS, 1);
add_move_binding (widget_class, GDK_KEY_Left, 0,
GTK_MOVEMENT_VISUAL_POSITIONS, -1);
add_move_binding (widget_class, GDK_KEY_KP_Right, 0,
GTK_MOVEMENT_VISUAL_POSITIONS, 1);
add_move_binding (widget_class, GDK_KEY_KP_Left, 0,
GTK_MOVEMENT_VISUAL_POSITIONS, -1);
add_move_binding (widget_class, GDK_KEY_Right, GDK_CONTROL_MASK,
GTK_MOVEMENT_WORDS, 1);
add_move_binding (widget_class, GDK_KEY_Left, GDK_CONTROL_MASK,
GTK_MOVEMENT_WORDS, -1);
add_move_binding (widget_class, GDK_KEY_KP_Right, GDK_CONTROL_MASK,
GTK_MOVEMENT_WORDS, 1);
add_move_binding (widget_class, GDK_KEY_KP_Left, GDK_CONTROL_MASK,
GTK_MOVEMENT_WORDS, -1);
add_move_binding (widget_class, GDK_KEY_Home, 0,
GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
add_move_binding (widget_class, GDK_KEY_End, 0,
GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
add_move_binding (widget_class, GDK_KEY_KP_Home, 0,
GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
add_move_binding (widget_class, GDK_KEY_KP_End, 0,
GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
add_move_binding (widget_class, GDK_KEY_Home, GDK_CONTROL_MASK,
GTK_MOVEMENT_BUFFER_ENDS, -1);
add_move_binding (widget_class, GDK_KEY_End, GDK_CONTROL_MASK,
GTK_MOVEMENT_BUFFER_ENDS, 1);
add_move_binding (widget_class, GDK_KEY_KP_Home, GDK_CONTROL_MASK,
GTK_MOVEMENT_BUFFER_ENDS, -1);
add_move_binding (widget_class, GDK_KEY_KP_End, GDK_CONTROL_MASK,
GTK_MOVEMENT_BUFFER_ENDS, 1);
/* Select all
*/
gtk_widget_class_add_binding (widget_class,
GDK_KEY_a, GDK_CONTROL_MASK,
(GtkShortcutFunc) gtk_text_select_all,
NULL);
gtk_widget_class_add_binding (widget_class,
GDK_KEY_slash, GDK_CONTROL_MASK,
(GtkShortcutFunc) gtk_text_select_all,
NULL);
/* Unselect all
*/
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_backslash, GDK_CONTROL_MASK,
"move-cursor",
"(iib)", GTK_MOVEMENT_VISUAL_POSITIONS, 0, FALSE);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_a, GDK_SHIFT_MASK | GDK_CONTROL_MASK,
"move-cursor",
"(iib)", GTK_MOVEMENT_VISUAL_POSITIONS, 0, FALSE);
/* Activate
*/
gtk_widget_class_add_binding_signal (widget_class, GDK_KEY_Return, 0,
"activate",
NULL);
gtk_widget_class_add_binding_signal (widget_class, GDK_KEY_ISO_Enter, 0,
"activate",
NULL);
gtk_widget_class_add_binding_signal (widget_class, GDK_KEY_KP_Enter, 0,
"activate",
NULL);
/* Deleting text */
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_Delete, 0,
"delete-from-cursor",
"(ii)", GTK_DELETE_CHARS, 1);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_KP_Delete, 0,
"delete-from-cursor",
"(ii)", GTK_DELETE_CHARS, 1);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_BackSpace, 0,
"backspace",
NULL);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_u, GDK_CONTROL_MASK,
"delete-from-cursor",
"(ii)", GTK_DELETE_PARAGRAPH_ENDS, -1);
/* Make this do the same as Backspace, to help with mis-typing */
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_BackSpace, GDK_SHIFT_MASK,
"backspace",
NULL);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_Delete, GDK_CONTROL_MASK,
"delete-from-cursor",
"(ii)", GTK_DELETE_WORD_ENDS, 1);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_KP_Delete, GDK_CONTROL_MASK,
"delete-from-cursor",
"(ii)", GTK_DELETE_WORD_ENDS, 1);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_BackSpace, GDK_CONTROL_MASK,
"delete-from-cursor",
"(ii)", GTK_DELETE_WORD_ENDS, -1);
/* Cut/copy/paste */
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_x, GDK_CONTROL_MASK,
"cut-clipboard",
NULL);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_c, GDK_CONTROL_MASK,
"copy-clipboard",
NULL);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_v, GDK_CONTROL_MASK,
"paste-clipboard",
NULL);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_Delete, GDK_SHIFT_MASK,
"cut-clipboard",
NULL);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_Insert, GDK_CONTROL_MASK,
"copy-clipboard",
NULL);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_Insert, GDK_SHIFT_MASK,
"paste-clipboard",
NULL);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_KP_Delete, GDK_SHIFT_MASK,
"cut-clipboard",
NULL);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_KP_Insert, GDK_CONTROL_MASK,
"copy-clipboard",
NULL);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_KP_Insert, GDK_SHIFT_MASK,
"paste-clipboard",
NULL);
/* Overwrite */
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_Insert, 0,
"toggle-overwrite",
NULL);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_KP_Insert, 0,
"toggle-overwrite",
NULL);
/* Emoji */
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_period, GDK_CONTROL_MASK,
"insert-emoji",
NULL);
gtk_widget_class_add_binding_signal (widget_class,
GDK_KEY_semicolon, GDK_CONTROL_MASK,
"insert-emoji",
NULL);
/* Undo/Redo */
gtk_widget_class_add_binding_action (widget_class,
GDK_KEY_z, GDK_CONTROL_MASK,
"text.undo", NULL);
gtk_widget_class_add_binding_action (widget_class,
GDK_KEY_y, GDK_CONTROL_MASK,
"text.redo", NULL);
gtk_widget_class_add_binding_action (widget_class,
GDK_KEY_z, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"text.redo", NULL);
gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_TEXT_ACCESSIBLE);
gtk_widget_class_set_css_name (widget_class, I_("text"));
}
static void
editable_insert_text (GtkEditable *editable,
const char *text,
int length,
int *position)
{
gtk_text_insert_text (GTK_TEXT (editable), text, length, position);
}
static void
editable_delete_text (GtkEditable *editable,
int start_pos,
int end_pos)
{
gtk_text_delete_text (GTK_TEXT (editable), start_pos, end_pos);
}
static const char *
editable_get_text (GtkEditable *editable)
{
return gtk_entry_buffer_get_text (get_buffer (GTK_TEXT (editable)));
}
static void
editable_set_selection_bounds (GtkEditable *editable,
int start_pos,
int end_pos)
{
gtk_text_set_selection_bounds (GTK_TEXT (editable), start_pos, end_pos);
}
static gboolean
editable_get_selection_bounds (GtkEditable *editable,
int *start_pos,
int *end_pos)
{
return gtk_text_get_selection_bounds (GTK_TEXT (editable), start_pos, end_pos);
}
static void
gtk_text_editable_init (GtkEditableInterface *iface)
{
iface->insert_text = editable_insert_text;
iface->delete_text = editable_delete_text;
iface->get_text = editable_get_text;
iface->set_selection_bounds = editable_set_selection_bounds;
iface->get_selection_bounds = editable_get_selection_bounds;
}
static void
gtk_text_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkText *self = GTK_TEXT (object);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
switch (prop_id)
{
/* GtkEditable properties */
case NUM_PROPERTIES + GTK_EDITABLE_PROP_EDITABLE:
gtk_text_set_editable (self, g_value_get_boolean (value));
break;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_WIDTH_CHARS:
gtk_text_set_width_chars (self, g_value_get_int (value));
break;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_MAX_WIDTH_CHARS:
gtk_text_set_max_width_chars (self, g_value_get_int (value));
break;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_TEXT:
gtk_text_set_text (self, g_value_get_string (value));
break;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_XALIGN:
gtk_text_set_alignment (self, g_value_get_float (value));
break;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_ENABLE_UNDO:
if (g_value_get_boolean (value) != gtk_text_history_get_enabled (priv->history))
{
gtk_text_history_set_enabled (priv->history, g_value_get_boolean (value));
g_object_notify_by_pspec (object, pspec);
}
break;
/* GtkText properties */
case PROP_BUFFER:
gtk_text_set_buffer (self, g_value_get_object (value));
break;
case PROP_MAX_LENGTH:
gtk_text_set_max_length (self, g_value_get_int (value));
break;
case PROP_VISIBILITY:
gtk_text_set_visibility (self, g_value_get_boolean (value));
break;
case PROP_INVISIBLE_CHAR:
gtk_text_set_invisible_char (self, g_value_get_uint (value));
break;
case PROP_ACTIVATES_DEFAULT:
gtk_text_set_activates_default (self, g_value_get_boolean (value));
break;
case PROP_TRUNCATE_MULTILINE:
if (priv->truncate_multiline != g_value_get_boolean (value))
{
priv->truncate_multiline = g_value_get_boolean (value);
g_object_notify_by_pspec (object, pspec);
}
break;
case PROP_OVERWRITE_MODE:
gtk_text_set_overwrite_mode (self, g_value_get_boolean (value));
break;
case PROP_INVISIBLE_CHAR_SET:
if (g_value_get_boolean (value))
priv->invisible_char_set = TRUE;
else
gtk_text_unset_invisible_char (self);
break;
case PROP_PLACEHOLDER_TEXT:
gtk_text_set_placeholder_text (self, g_value_get_string (value));
break;
case PROP_IM_MODULE:
g_free (priv->im_module);
priv->im_module = g_value_dup_string (value);
if (GTK_IS_IM_MULTICONTEXT (priv->im_context))
gtk_im_multicontext_set_context_id (GTK_IM_MULTICONTEXT (priv->im_context), priv->im_module);
g_object_notify_by_pspec (object, pspec);
break;
case PROP_INPUT_PURPOSE:
gtk_text_set_input_purpose (self, g_value_get_enum (value));
break;
case PROP_INPUT_HINTS:
gtk_text_set_input_hints (self, g_value_get_flags (value));
break;
case PROP_ATTRIBUTES:
gtk_text_set_attributes (self, g_value_get_boxed (value));
break;
case PROP_TABS:
gtk_text_set_tabs (self, g_value_get_boxed (value));
break;
case PROP_ENABLE_EMOJI_COMPLETION:
set_enable_emoji_completion (self, g_value_get_boolean (value));
break;
case PROP_PROPAGATE_TEXT_WIDTH:
if (priv->propagate_text_width != g_value_get_boolean (value))
{
priv->propagate_text_width = g_value_get_boolean (value);
gtk_widget_queue_resize (GTK_WIDGET (self));
g_object_notify_by_pspec (object, pspec);
}
break;
case PROP_EXTRA_MENU:
gtk_text_set_extra_menu (self, g_value_get_object (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_text_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkText *self = GTK_TEXT (object);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
switch (prop_id)
{
/* GtkEditable properties */
case NUM_PROPERTIES + GTK_EDITABLE_PROP_CURSOR_POSITION:
g_value_set_int (value, priv->current_pos);
break;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_SELECTION_BOUND:
g_value_set_int (value, priv->selection_bound);
break;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_EDITABLE:
g_value_set_boolean (value, priv->editable);
break;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_WIDTH_CHARS:
g_value_set_int (value, priv->width_chars);
break;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_MAX_WIDTH_CHARS:
g_value_set_int (value, priv->max_width_chars);
break;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_TEXT:
g_value_set_string (value, gtk_entry_buffer_get_text (get_buffer (self)));
break;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_XALIGN:
g_value_set_float (value, priv->xalign);
break;
case NUM_PROPERTIES + GTK_EDITABLE_PROP_ENABLE_UNDO:
g_value_set_boolean (value, gtk_text_history_get_enabled (priv->history));
break;
/* GtkText properties */
case PROP_BUFFER:
g_value_set_object (value, get_buffer (self));
break;
case PROP_MAX_LENGTH:
g_value_set_int (value, gtk_entry_buffer_get_max_length (get_buffer (self)));
break;
case PROP_VISIBILITY:
g_value_set_boolean (value, priv->visible);
break;
case PROP_INVISIBLE_CHAR:
g_value_set_uint (value, priv->invisible_char);
break;
case PROP_ACTIVATES_DEFAULT:
g_value_set_boolean (value, priv->activates_default);
break;
case PROP_SCROLL_OFFSET:
g_value_set_int (value, priv->scroll_offset);
break;
case PROP_TRUNCATE_MULTILINE:
g_value_set_boolean (value, priv->truncate_multiline);
break;
case PROP_OVERWRITE_MODE:
g_value_set_boolean (value, priv->overwrite_mode);
break;
case PROP_INVISIBLE_CHAR_SET:
g_value_set_boolean (value, priv->invisible_char_set);
break;
case PROP_IM_MODULE:
g_value_set_string (value, priv->im_module);
break;
case PROP_PLACEHOLDER_TEXT:
g_value_set_string (value, gtk_text_get_placeholder_text (self));
break;
case PROP_INPUT_PURPOSE:
g_value_set_enum (value, gtk_text_get_input_purpose (self));
break;
case PROP_INPUT_HINTS:
g_value_set_flags (value, gtk_text_get_input_hints (self));
break;
case PROP_ATTRIBUTES:
g_value_set_boxed (value, priv->attrs);
break;
case PROP_TABS:
g_value_set_boxed (value, priv->tabs);
break;
case PROP_ENABLE_EMOJI_COMPLETION:
g_value_set_boolean (value, priv->enable_emoji_completion);
break;
case PROP_PROPAGATE_TEXT_WIDTH:
g_value_set_boolean (value, priv->propagate_text_width);
break;
case PROP_EXTRA_MENU:
g_value_set_object (value, priv->extra_menu);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_text_ensure_text_handles (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int i;
for (i = 0; i < TEXT_HANDLE_N_HANDLES; i++)
{
if (priv->text_handles[i])
continue;
priv->text_handles[i] = gtk_text_handle_new (GTK_WIDGET (self));
g_signal_connect (priv->text_handles[i], "drag-started",
G_CALLBACK (gtk_text_handle_drag_started), self);
g_signal_connect (priv->text_handles[i], "handle-dragged",
G_CALLBACK (gtk_text_handle_dragged), self);
g_signal_connect (priv->text_handles[i], "drag-finished",
G_CALLBACK (gtk_text_handle_drag_finished), self);
}
}
static void
gtk_text_init (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GtkCssNode *widget_node;
GtkGesture *gesture;
GtkEventController *controller;
int i;
GtkDropTarget *target;
gtk_widget_set_focusable (GTK_WIDGET (self), TRUE);
gtk_widget_set_overflow (GTK_WIDGET (self), GTK_OVERFLOW_HIDDEN);
priv->editable = TRUE;
priv->visible = TRUE;
priv->dnd_position = -1;
priv->width_chars = -1;
priv->max_width_chars = -1;
priv->truncate_multiline = FALSE;
priv->xalign = 0.0;
priv->insert_pos = -1;
priv->cursor_alpha = 1.0;
priv->invisible_char = 0;
priv->history = gtk_text_history_new (&history_funcs, self);
gtk_text_history_set_max_undo_levels (priv->history, DEFAULT_MAX_UNDO);
priv->selection_content = g_object_new (GTK_TYPE_TEXT_CONTENT, NULL);
GTK_TEXT_CONTENT (priv->selection_content)->self = self;
target = gtk_drop_target_new (G_TYPE_STRING, GDK_ACTION_COPY | GDK_ACTION_MOVE);
g_signal_connect (target, "accept", G_CALLBACK (gtk_text_drag_accept), self);
g_signal_connect (target, "enter", G_CALLBACK (gtk_text_drag_motion), self);
g_signal_connect (target, "motion", G_CALLBACK (gtk_text_drag_motion), self);
g_signal_connect (target, "leave", G_CALLBACK (gtk_text_drag_leave), self);
g_signal_connect (target, "drop", G_CALLBACK (gtk_text_drag_drop), self);
gtk_widget_add_controller (GTK_WIDGET (self), GTK_EVENT_CONTROLLER (target));
/* This object is completely private. No external entity can gain a reference
* to it; so we create it here and destroy it in finalize().
*/
priv->im_context = gtk_im_multicontext_new ();
g_signal_connect (priv->im_context, "commit",
G_CALLBACK (gtk_text_commit_cb), self);
g_signal_connect (priv->im_context, "preedit-changed",
G_CALLBACK (gtk_text_preedit_changed_cb), self);
g_signal_connect (priv->im_context, "retrieve-surrounding",
G_CALLBACK (gtk_text_retrieve_surrounding_cb), self);
g_signal_connect (priv->im_context, "delete-surrounding",
G_CALLBACK (gtk_text_delete_surrounding_cb), self);
priv->drag_gesture = gtk_gesture_drag_new ();
g_signal_connect (priv->drag_gesture, "drag-update",
G_CALLBACK (gtk_text_drag_gesture_update), self);
g_signal_connect (priv->drag_gesture, "drag-end",
G_CALLBACK (gtk_text_drag_gesture_end), self);
gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (priv->drag_gesture), 0);
gtk_gesture_single_set_exclusive (GTK_GESTURE_SINGLE (priv->drag_gesture), TRUE);
gtk_widget_add_controller (GTK_WIDGET (self), GTK_EVENT_CONTROLLER (priv->drag_gesture));
gesture = gtk_gesture_click_new ();
g_signal_connect (gesture, "pressed",
G_CALLBACK (gtk_text_click_gesture_pressed), self);
gtk_gesture_single_set_button (GTK_GESTURE_SINGLE (gesture), 0);
gtk_gesture_single_set_exclusive (GTK_GESTURE_SINGLE (gesture), TRUE);
gtk_widget_add_controller (GTK_WIDGET (self), GTK_EVENT_CONTROLLER (gesture));
controller = gtk_event_controller_motion_new ();
g_signal_connect (controller, "motion",
G_CALLBACK (gtk_text_motion_controller_motion), self);
gtk_widget_add_controller (GTK_WIDGET (self), controller);
priv->key_controller = gtk_event_controller_key_new ();
g_signal_connect (priv->key_controller, "key-pressed",
G_CALLBACK (gtk_text_key_controller_key_pressed), self);
g_signal_connect_swapped (priv->key_controller, "im-update",
G_CALLBACK (gtk_text_schedule_im_reset), self);
gtk_event_controller_key_set_im_context (GTK_EVENT_CONTROLLER_KEY (priv->key_controller),
priv->im_context);
gtk_widget_add_controller (GTK_WIDGET (self), priv->key_controller);
controller = gtk_event_controller_focus_new ();
g_signal_connect_swapped (controller, "enter",
G_CALLBACK (gtk_text_focus_in), self);
g_signal_connect_swapped (controller, "leave",
G_CALLBACK (gtk_text_focus_out), self);
gtk_widget_add_controller (GTK_WIDGET (self), controller);
widget_node = gtk_widget_get_css_node (GTK_WIDGET (self));
for (i = 0; i < 2; i++)
{
priv->undershoot_node[i] = gtk_css_node_new ();
gtk_css_node_set_name (priv->undershoot_node[i], g_quark_from_static_string ("undershoot"));
gtk_css_node_add_class (priv->undershoot_node[i], g_quark_from_static_string (i == 0 ? GTK_STYLE_CLASS_LEFT : GTK_STYLE_CLASS_RIGHT));
gtk_css_node_set_parent (priv->undershoot_node[i], widget_node);
gtk_css_node_set_state (priv->undershoot_node[i], gtk_css_node_get_state (widget_node) & ~GTK_STATE_FLAG_DROP_ACTIVE);
g_object_unref (priv->undershoot_node[i]);
}
set_text_cursor (GTK_WIDGET (self));
}
static void
gtk_text_dispose (GObject *object)
{
GtkText *self = GTK_TEXT (object);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GdkSeat *seat;
GdkDevice *keyboard = NULL;
GtkWidget *chooser;
priv->current_pos = priv->selection_bound = 0;
gtk_text_reset_im_context (self);
gtk_text_reset_layout (self);
if (priv->blink_tick)
{
gtk_widget_remove_tick_callback (GTK_WIDGET (object), priv->blink_tick);
priv->blink_tick = 0;
}
if (priv->magnifier)
_gtk_magnifier_set_inspected (GTK_MAGNIFIER (priv->magnifier), NULL);
if (priv->buffer)
{
buffer_disconnect_signals (self);
g_object_unref (priv->buffer);
priv->buffer = NULL;
}
g_clear_pointer (&priv->emoji_completion, gtk_widget_unparent);
chooser = g_object_get_data (object, "gtk-emoji-chooser");
if (chooser)
gtk_widget_unparent (chooser);
seat = gdk_display_get_default_seat (gtk_widget_get_display (GTK_WIDGET (object)));
if (seat)
keyboard = gdk_seat_get_keyboard (seat);
if (keyboard)
g_signal_handlers_disconnect_by_func (keyboard, direction_changed, self);
g_clear_pointer (&priv->selection_bubble, gtk_widget_unparent);
g_clear_pointer (&priv->popup_menu, gtk_widget_unparent);
g_clear_pointer ((GtkWidget **) &priv->text_handles[TEXT_HANDLE_CURSOR], gtk_widget_unparent);
g_clear_pointer ((GtkWidget **) &priv->text_handles[TEXT_HANDLE_SELECTION_BOUND], gtk_widget_unparent);
g_clear_object (&priv->extra_menu);
g_clear_pointer (&priv->magnifier_popover, gtk_widget_unparent);
g_clear_pointer (&priv->placeholder, gtk_widget_unparent);
G_OBJECT_CLASS (gtk_text_parent_class)->dispose (object);
}
static void
gtk_text_finalize (GObject *object)
{
GtkText *self = GTK_TEXT (object);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_clear_object (&priv->selection_content);
g_clear_object (&priv->history);
g_clear_object (&priv->cached_layout);
g_clear_object (&priv->im_context);
g_free (priv->im_module);
if (priv->tabs)
pango_tab_array_free (priv->tabs);
if (priv->attrs)
pango_attr_list_unref (priv->attrs);
G_OBJECT_CLASS (gtk_text_parent_class)->finalize (object);
}
static void
gtk_text_ensure_magnifier (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->magnifier_popover)
return;
priv->magnifier = _gtk_magnifier_new (GTK_WIDGET (self));
gtk_widget_set_size_request (priv->magnifier, 100, 60);
_gtk_magnifier_set_magnification (GTK_MAGNIFIER (priv->magnifier), 2.0);
priv->magnifier_popover = gtk_popover_new ();
gtk_popover_set_position (GTK_POPOVER (priv->magnifier_popover), GTK_POS_TOP);
gtk_widget_set_parent (priv->magnifier_popover, GTK_WIDGET (self));
gtk_widget_add_css_class (priv->magnifier_popover, "magnifier");
gtk_popover_set_autohide (GTK_POPOVER (priv->magnifier_popover), FALSE);
gtk_popover_set_child (GTK_POPOVER (priv->magnifier_popover), priv->magnifier);
gtk_widget_show (priv->magnifier);
}
static void
begin_change (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
priv->change_count++;
g_object_freeze_notify (G_OBJECT (self));
}
static void
end_change (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (priv->change_count > 0);
g_object_thaw_notify (G_OBJECT (self));
priv->change_count--;
if (priv->change_count == 0)
{
if (priv->real_changed)
{
g_signal_emit_by_name (self, "changed");
priv->real_changed = FALSE;
}
}
}
static void
emit_changed (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->change_count == 0)
g_signal_emit_by_name (self, "changed");
else
priv->real_changed = TRUE;
}
static DisplayMode
gtk_text_get_display_mode (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->visible)
return DISPLAY_NORMAL;
if (priv->invisible_char == 0 && priv->invisible_char_set)
return DISPLAY_BLANK;
return DISPLAY_INVISIBLE;
}
char *
gtk_text_get_display_text (GtkText *self,
int start_pos,
int end_pos)
{
GtkTextPasswordHint *password_hint;
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
gunichar invisible_char;
const char *start;
const char *end;
const char *text;
char char_str[7];
int char_len;
GString *str;
guint length;
int i;
text = gtk_entry_buffer_get_text (get_buffer (self));
length = gtk_entry_buffer_get_length (get_buffer (self));
if (end_pos < 0 || end_pos > length)
end_pos = length;
if (start_pos > length)
start_pos = length;
if (end_pos <= start_pos)
return g_strdup ("");
else if (priv->visible)
{
start = g_utf8_offset_to_pointer (text, start_pos);
end = g_utf8_offset_to_pointer (start, end_pos - start_pos);
return g_strndup (start, end - start);
}
else
{
str = g_string_sized_new (length * 2);
/* Figure out what our invisible char is and encode it */
if (!priv->invisible_char)
invisible_char = priv->invisible_char_set ? ' ' : '*';
else
invisible_char = priv->invisible_char;
char_len = g_unichar_to_utf8 (invisible_char, char_str);
/*
* Add hidden characters for each character in the text
* buffer. If there is a password hint, then keep that
* character visible.
*/
password_hint = g_object_get_qdata (G_OBJECT (self), quark_password_hint);
for (i = start_pos; i < end_pos; ++i)
{
if (password_hint && i == password_hint->position)
{
start = g_utf8_offset_to_pointer (text, i);
g_string_append_len (str, start, g_utf8_next_char (start) - start);
}
else
{
g_string_append_len (str, char_str, char_len);
}
}
return g_string_free (str, FALSE);
}
}
static void
gtk_text_unmap (GtkWidget *widget)
{
GtkText *self = GTK_TEXT (widget);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
priv->text_handles_enabled = FALSE;
gtk_text_update_handles (self);
priv->cursor_alpha = 1.0;
GTK_WIDGET_CLASS (gtk_text_parent_class)->unmap (widget);
}
static void
gtk_text_realize (GtkWidget *widget)
{
GtkText *self = GTK_TEXT (widget);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GTK_WIDGET_CLASS (gtk_text_parent_class)->realize (widget);
gtk_im_context_set_client_widget (priv->im_context, widget);
gtk_text_adjust_scroll (self);
gtk_text_update_primary_selection (self);
}
static void
gtk_text_unrealize (GtkWidget *widget)
{
GtkText *self = GTK_TEXT (widget);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GdkClipboard *clipboard;
gtk_text_reset_layout (self);
gtk_im_context_set_client_widget (priv->im_context, NULL);
clipboard = gtk_widget_get_primary_clipboard (widget);
if (gdk_clipboard_get_content (clipboard) == priv->selection_content)
gdk_clipboard_set_content (clipboard, NULL);
GTK_WIDGET_CLASS (gtk_text_parent_class)->unrealize (widget);
}
static void
update_im_cursor_location (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
const int text_width = gtk_widget_get_width (GTK_WIDGET (self));
GdkRectangle area;
int strong_x;
int strong_xoffset;
gtk_text_get_cursor_locations (self, &strong_x, NULL);
strong_xoffset = strong_x - priv->scroll_offset;
if (strong_xoffset < 0)
strong_xoffset = 0;
else if (strong_xoffset > text_width)
strong_xoffset = text_width;
area.x = strong_xoffset;
area.y = 0;
area.width = 0;
area.height = gtk_widget_get_height (GTK_WIDGET (self));
gtk_im_context_set_cursor_location (priv->im_context, &area);
}
static void
gtk_text_move_handle (GtkText *self,
GtkTextHandle *handle,
int x,
int y,
int height)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (!gtk_text_handle_get_is_dragged (handle) &&
(x < 0 || x > gtk_widget_get_width (GTK_WIDGET (self))))
{
/* Hide the handle if it's not being manipulated
* and fell outside of the visible text area.
*/
gtk_widget_hide (GTK_WIDGET (handle));
}
else
{
GdkRectangle rect;
rect.x = x;
rect.y = y;
rect.width = 1;
rect.height = height;
gtk_text_handle_set_position (handle, &rect);
gtk_widget_set_direction (GTK_WIDGET (handle), priv->resolved_dir);
gtk_widget_show (GTK_WIDGET (handle));
}
}
static int
gtk_text_get_selection_bound_location (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
PangoLayout *layout;
PangoRectangle pos;
int x;
const char *text;
int index;
layout = gtk_text_ensure_layout (self, FALSE);
text = pango_layout_get_text (layout);
index = g_utf8_offset_to_pointer (text, priv->selection_bound) - text;
pango_layout_index_to_pos (layout, index, &pos);
if (gtk_widget_get_direction (GTK_WIDGET (self)) == GTK_TEXT_DIR_RTL)
x = (pos.x + pos.width) / PANGO_SCALE;
else
x = pos.x / PANGO_SCALE;
return x;
}
static void
gtk_text_update_handles (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
const int text_height = gtk_widget_get_height (GTK_WIDGET (self));
int strong_x;
int cursor, bound;
if (!priv->text_handles_enabled)
{
if (priv->text_handles[TEXT_HANDLE_CURSOR])
gtk_widget_hide (GTK_WIDGET (priv->text_handles[TEXT_HANDLE_CURSOR]));
if (priv->text_handles[TEXT_HANDLE_SELECTION_BOUND])
gtk_widget_hide (GTK_WIDGET (priv->text_handles[TEXT_HANDLE_SELECTION_BOUND]));
}
else
{
gtk_text_ensure_text_handles (self);
gtk_text_get_cursor_locations (self, &strong_x, NULL);
cursor = strong_x - priv->scroll_offset;
if (priv->selection_bound != priv->current_pos)
{
int start, end;
bound = gtk_text_get_selection_bound_location (self) - priv->scroll_offset;
if (priv->selection_bound > priv->current_pos)
{
start = cursor;
end = bound;
}
else
{
start = bound;
end = cursor;
}
/* Update start selection bound */
gtk_text_handle_set_role (priv->text_handles[TEXT_HANDLE_SELECTION_BOUND],
GTK_TEXT_HANDLE_ROLE_SELECTION_END);
gtk_text_move_handle (self,
priv->text_handles[TEXT_HANDLE_SELECTION_BOUND],
end, 0, text_height);
gtk_text_handle_set_role (priv->text_handles[TEXT_HANDLE_CURSOR],
GTK_TEXT_HANDLE_ROLE_SELECTION_START);
gtk_text_move_handle (self,
priv->text_handles[TEXT_HANDLE_CURSOR],
start, 0, text_height);
}
else
{
gtk_widget_hide (GTK_WIDGET (priv->text_handles[TEXT_HANDLE_SELECTION_BOUND]));
gtk_text_handle_set_role (priv->text_handles[TEXT_HANDLE_CURSOR],
GTK_TEXT_HANDLE_ROLE_CURSOR);
gtk_text_move_handle (self,
priv->text_handles[TEXT_HANDLE_CURSOR],
cursor, 0, text_height);
}
}
}
static void
gtk_text_measure (GtkWidget *widget,
GtkOrientation orientation,
int for_size,
int *minimum,
int *natural,
int *minimum_baseline,
int *natural_baseline)
{
GtkText *self = GTK_TEXT (widget);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
PangoContext *context;
PangoFontMetrics *metrics;
context = gtk_widget_get_pango_context (widget);
metrics = pango_context_get_metrics (context, NULL, NULL);
if (orientation == GTK_ORIENTATION_HORIZONTAL)
{
int min, nat;
int char_width;
int digit_width;
int char_pixels;
char_width = pango_font_metrics_get_approximate_char_width (metrics);
digit_width = pango_font_metrics_get_approximate_digit_width (metrics);
char_pixels = (MAX (char_width, digit_width) + PANGO_SCALE - 1) / PANGO_SCALE;
if (priv->width_chars >= 0)
min = char_pixels * priv->width_chars;
else
min = 0;
if (priv->max_width_chars < 0)
nat = NAT_ENTRY_WIDTH;
else
nat = char_pixels * priv->max_width_chars;
if (priv->propagate_text_width)
{
PangoLayout *layout;
int act;
layout = gtk_text_ensure_layout (self, TRUE);
pango_layout_get_pixel_size (layout, &act, NULL);
nat = MIN (act, nat);
}
nat = MAX (min, nat);
if (priv->placeholder)
{
int pmin, pnat;
gtk_widget_measure (priv->placeholder, GTK_ORIENTATION_HORIZONTAL, -1,
&pmin, &pnat, NULL, NULL);
min = MAX (min, pmin);
nat = MAX (nat, pnat);
}
*minimum = min;
*natural = nat;
}
else
{
int height, baseline;
PangoLayout *layout;
layout = gtk_text_ensure_layout (self, TRUE);
priv->ascent = pango_font_metrics_get_ascent (metrics);
priv->descent = pango_font_metrics_get_descent (metrics);
pango_layout_get_pixel_size (layout, NULL, &height);
height = MAX (height, PANGO_PIXELS (priv->ascent + priv->descent));
baseline = pango_layout_get_baseline (layout) / PANGO_SCALE;
*minimum = *natural = height;
if (priv->placeholder)
{
int min, nat;
gtk_widget_measure (priv->placeholder, GTK_ORIENTATION_VERTICAL, -1,
&min, &nat, NULL, NULL);
*minimum = MAX (*minimum, min);
*natural = MAX (*natural, nat);
}
if (minimum_baseline)
*minimum_baseline = baseline;
if (natural_baseline)
*natural_baseline = baseline;
}
pango_font_metrics_unref (metrics);
}
static void
gtk_text_size_allocate (GtkWidget *widget,
int width,
int height,
int baseline)
{
GtkText *self = GTK_TEXT (widget);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GtkEmojiChooser *chooser;
priv->text_baseline = baseline;
if (priv->placeholder)
{
gtk_widget_size_allocate (priv->placeholder,
&(GtkAllocation) { 0, 0, width, height },
-1);
}
gtk_text_adjust_scroll (self);
gtk_text_check_cursor_blink (self);
update_im_cursor_location (self);
chooser = g_object_get_data (G_OBJECT (self), "gtk-emoji-chooser");
if (chooser)
gtk_native_check_resize (GTK_NATIVE (chooser));
gtk_text_update_handles (self);
if (priv->emoji_completion)
gtk_native_check_resize (GTK_NATIVE (priv->emoji_completion));
if (priv->magnifier_popover)
gtk_native_check_resize (GTK_NATIVE (priv->magnifier_popover));
if (priv->popup_menu)
gtk_native_check_resize (GTK_NATIVE (priv->popup_menu));
if (priv->selection_bubble)
gtk_native_check_resize (GTK_NATIVE (priv->selection_bubble));
if (priv->text_handles[TEXT_HANDLE_CURSOR])
gtk_native_check_resize (GTK_NATIVE (priv->text_handles[TEXT_HANDLE_CURSOR]));
if (priv->text_handles[TEXT_HANDLE_SELECTION_BOUND])
gtk_native_check_resize (GTK_NATIVE (priv->text_handles[TEXT_HANDLE_SELECTION_BOUND]));
}
static void
gtk_text_draw_undershoot (GtkText *self,
GtkSnapshot *snapshot)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
const int text_width = gtk_widget_get_width (GTK_WIDGET (self));
const int text_height = gtk_widget_get_height (GTK_WIDGET (self));
GtkStyleContext *context;
int min_offset, max_offset;
context = gtk_widget_get_style_context (GTK_WIDGET (self));
gtk_text_get_scroll_limits (self, &min_offset, &max_offset);
if (priv->scroll_offset > min_offset)
{
gtk_style_context_save_to_node (context, priv->undershoot_node[0]);
gtk_snapshot_render_background (snapshot, context, 0, 0, UNDERSHOOT_SIZE, text_height);
gtk_snapshot_render_frame (snapshot, context, 0, 0, UNDERSHOOT_SIZE, text_height);
gtk_style_context_restore (context);
}
if (priv->scroll_offset < max_offset)
{
gtk_style_context_save_to_node (context, priv->undershoot_node[1]);
gtk_snapshot_render_background (snapshot, context, text_width - UNDERSHOOT_SIZE, 0, UNDERSHOOT_SIZE, text_height);
gtk_snapshot_render_frame (snapshot, context, text_width - UNDERSHOOT_SIZE, 0, UNDERSHOOT_SIZE, text_height);
gtk_style_context_restore (context);
}
}
static void
gtk_text_snapshot (GtkWidget *widget,
GtkSnapshot *snapshot)
{
GtkText *self = GTK_TEXT (widget);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
/* Draw text and cursor */
if (priv->dnd_position != -1)
gtk_text_draw_cursor (self, snapshot, CURSOR_DND);
if (priv->placeholder)
gtk_widget_snapshot_child (widget, priv->placeholder, snapshot);
gtk_text_draw_text (self, snapshot);
/* When no text is being displayed at all, don't show the cursor */
if (gtk_text_get_display_mode (self) != DISPLAY_BLANK &&
gtk_widget_has_focus (widget) &&
priv->selection_bound == priv->current_pos)
{
gtk_snapshot_push_opacity (snapshot, priv->cursor_alpha);
gtk_text_draw_cursor (self, snapshot, CURSOR_STANDARD);
gtk_snapshot_pop (snapshot);
}
gtk_text_draw_undershoot (self, snapshot);
}
static void
gtk_text_get_pixel_ranges (GtkText *self,
int **ranges,
int *n_ranges)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->selection_bound != priv->current_pos)
{
PangoLayout *layout = gtk_text_ensure_layout (self, TRUE);
PangoLayoutLine *line = pango_layout_get_lines_readonly (layout)->data;
const char *text = pango_layout_get_text (layout);
int start_index = g_utf8_offset_to_pointer (text, priv->selection_bound) - text;
int end_index = g_utf8_offset_to_pointer (text, priv->current_pos) - text;
int real_n_ranges, i;
pango_layout_line_get_x_ranges (line,
MIN (start_index, end_index),
MAX (start_index, end_index),
ranges,
&real_n_ranges);
if (ranges)
{
int *r = *ranges;
for (i = 0; i < real_n_ranges; ++i)
{
r[2 * i + 1] = (r[2 * i + 1] - r[2 * i]) / PANGO_SCALE;
r[2 * i] = r[2 * i] / PANGO_SCALE;
}
}
if (n_ranges)
*n_ranges = real_n_ranges;
}
else
{
if (n_ranges)
*n_ranges = 0;
if (ranges)
*ranges = NULL;
}
}
static gboolean
in_selection (GtkText *self,
int x)
{
int *ranges;
int n_ranges, i;
int retval = FALSE;
gtk_text_get_pixel_ranges (self, &ranges, &n_ranges);
for (i = 0; i < n_ranges; ++i)
{
if (x >= ranges[2 * i] && x < ranges[2 * i] + ranges[2 * i + 1])
{
retval = TRUE;
break;
}
}
g_free (ranges);
return retval;
}
static void
gesture_get_current_point_in_layout (GtkGestureSingle *gesture,
GtkText *self,
int *x,
int *y)
{
int tx, ty;
GdkEventSequence *sequence;
double px, py;
sequence = gtk_gesture_single_get_current_sequence (gesture);
gtk_gesture_get_point (GTK_GESTURE (gesture), sequence, &px, &py);
gtk_text_get_layout_offsets (self, &tx, &ty);
if (x)
*x = px - tx;
if (y)
*y = py - ty;
}
static void
gtk_text_do_popup (GtkText *self,
double x,
double y)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
gtk_text_update_clipboard_actions (self);
if (!priv->popup_menu)
{
GMenuModel *model;
model = gtk_text_get_menu_model (self);
priv->popup_menu = gtk_popover_menu_new_from_model (model);
gtk_widget_set_parent (priv->popup_menu, GTK_WIDGET (self));
gtk_popover_set_position (GTK_POPOVER (priv->popup_menu), GTK_POS_BOTTOM);
gtk_popover_set_has_arrow (GTK_POPOVER (priv->popup_menu), FALSE);
gtk_widget_set_halign (priv->popup_menu, GTK_ALIGN_START);
g_object_unref (model);
}
if (x != -1 && y != -1)
{
GdkRectangle rect = { x, y, 1, 1 };
gtk_popover_set_pointing_to (GTK_POPOVER (priv->popup_menu), &rect);
}
else
gtk_popover_set_pointing_to (GTK_POPOVER (priv->popup_menu), NULL);
gtk_popover_popup (GTK_POPOVER (priv->popup_menu));
}
static void
gtk_text_click_gesture_pressed (GtkGestureClick *gesture,
int n_press,
double widget_x,
double widget_y,
GtkText *self)
{
GtkWidget *widget = GTK_WIDGET (self);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GdkEventSequence *current;
GdkEvent *event;
int x, y, sel_start, sel_end;
guint button;
int tmp_pos;
button = gtk_gesture_single_get_current_button (GTK_GESTURE_SINGLE (gesture));
current = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
event = gtk_gesture_get_last_event (GTK_GESTURE (gesture), current);
gtk_gesture_set_sequence_state (GTK_GESTURE (gesture), current,
GTK_EVENT_SEQUENCE_CLAIMED);
gesture_get_current_point_in_layout (GTK_GESTURE_SINGLE (gesture), self, &x, &y);
gtk_text_reset_blink_time (self);
if (!gtk_widget_has_focus (widget))
{
priv->in_click = TRUE;
gtk_widget_grab_focus (widget);
priv->in_click = FALSE;
}
tmp_pos = gtk_text_find_position (self, x);
if (gdk_event_triggers_context_menu (event))
{
gtk_text_do_popup (self, widget_x, widget_y);
}
else if (n_press == 1 && button == GDK_BUTTON_MIDDLE &&
get_middle_click_paste (self))
{
if (priv->editable)
{
priv->insert_pos = tmp_pos;
gtk_text_paste (self, gtk_widget_get_primary_clipboard (widget));
}
else
{
gtk_widget_error_bell (widget);
}
}
else if (button == GDK_BUTTON_PRIMARY)
{
gboolean have_selection;
gboolean is_touchscreen, extend_selection;
GdkDevice *source;
guint state;
sel_start = priv->selection_bound;
sel_end = priv->current_pos;
have_selection = sel_start != sel_end;
source = gdk_event_get_source_device (event);
is_touchscreen = gtk_simulate_touchscreen () ||
gdk_device_get_source (source) == GDK_SOURCE_TOUCHSCREEN;
priv->text_handles_enabled = is_touchscreen;
priv->in_drag = FALSE;
priv->select_words = FALSE;
priv->select_lines = FALSE;
state = gdk_event_get_modifier_state (event);
extend_selection = (state & GDK_SHIFT_MASK) != 0;
/* Always emit reset when preedit is shown */
priv->need_im_reset = TRUE;
gtk_text_reset_im_context (self);
switch (n_press)
{
case 1:
if (in_selection (self, x))
{
if (is_touchscreen)
{
if (priv->selection_bubble &&
gtk_widget_get_visible (priv->selection_bubble))
gtk_text_selection_bubble_popup_unset (self);
else
gtk_text_selection_bubble_popup_set (self);
}
else if (extend_selection)
{
/* Truncate current selection, but keep it as big as possible */
if (tmp_pos - sel_start > sel_end - tmp_pos)
gtk_text_set_positions (self, sel_start, tmp_pos);
else
gtk_text_set_positions (self, tmp_pos, sel_end);
/* all done, so skip the extend_to_left stuff later */
extend_selection = FALSE;
}
else
{
/* We'll either start a drag, or clear the selection */
priv->in_drag = TRUE;
priv->drag_start_x = x;
priv->drag_start_y = y;
}
}
else
{
gtk_text_selection_bubble_popup_unset (self);
if (!extend_selection)
{
gtk_text_set_selection_bounds (self, tmp_pos, tmp_pos);
priv->handle_place_time = g_get_monotonic_time ();
}
else
{
/* select from the current position to the clicked position */
if (!have_selection)
sel_start = sel_end = priv->current_pos;
gtk_text_set_positions (self, tmp_pos, tmp_pos);
}
}
break;
case 2:
priv->select_words = TRUE;
gtk_text_select_word (self);
break;
case 3:
priv->select_lines = TRUE;
gtk_text_select_line (self);
break;
default:
break;
}
if (extend_selection)
{
gboolean extend_to_left;
int start, end;
start = MIN (priv->current_pos, priv->selection_bound);
start = MIN (sel_start, start);
end = MAX (priv->current_pos, priv->selection_bound);
end = MAX (sel_end, end);
if (tmp_pos == sel_start || tmp_pos == sel_end)
extend_to_left = (tmp_pos == start);
else
extend_to_left = (end == sel_end);
if (extend_to_left)
gtk_text_set_positions (self, start, end);
else
gtk_text_set_positions (self, end, start);
}
gtk_gesture_set_state (priv->drag_gesture,
GTK_EVENT_SEQUENCE_CLAIMED);
gtk_text_update_handles (self);
}
if (n_press >= 3)
gtk_event_controller_reset (GTK_EVENT_CONTROLLER (gesture));
}
static char *
_gtk_text_get_selected_text (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->selection_bound != priv->current_pos)
{
const int start = MIN (priv->selection_bound, priv->current_pos);
const int end = MAX (priv->selection_bound, priv->current_pos);
const char *text = gtk_entry_buffer_get_text (get_buffer (self));
const int start_index = g_utf8_offset_to_pointer (text, start) - text;
const int end_index = g_utf8_offset_to_pointer (text, end) - text;
return g_strndup (text + start_index, end_index - start_index);
}
return NULL;
}
static void
gtk_text_show_magnifier (GtkText *self,
int x,
int y)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
const int text_height = gtk_widget_get_height (GTK_WIDGET (self));
cairo_rectangle_int_t rect;
gtk_text_ensure_magnifier (self);
rect.x = x;
rect.width = 1;
rect.y = 0;
rect.height = text_height;
_gtk_magnifier_set_coords (GTK_MAGNIFIER (priv->magnifier), rect.x,
rect.y + rect.height / 2);
gtk_popover_set_pointing_to (GTK_POPOVER (priv->magnifier_popover),
&rect);
gtk_popover_popup (GTK_POPOVER (priv->magnifier_popover));
}
static void
gtk_text_motion_controller_motion (GtkEventControllerMotion *controller,
double x,
double y,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->mouse_cursor_obscured)
{
set_text_cursor (GTK_WIDGET (self));
priv->mouse_cursor_obscured = FALSE;
}
}
static void
dnd_finished_cb (GdkDrag *drag,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (gdk_drag_get_selected_action (drag) == GDK_ACTION_MOVE)
gtk_text_delete_selection (self);
priv->drag = NULL;
}
static void
gtk_text_drag_gesture_update (GtkGestureDrag *gesture,
double offset_x,
double offset_y,
GtkText *self)
{
GtkWidget *widget = GTK_WIDGET (self);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GdkEventSequence *sequence;
GdkEvent *event;
int x, y;
gtk_text_selection_bubble_popup_unset (self);
gesture_get_current_point_in_layout (GTK_GESTURE_SINGLE (gesture), self, &x, &y);
sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
event = gtk_gesture_get_last_event (GTK_GESTURE (gesture), sequence);
if (priv->mouse_cursor_obscured)
{
set_text_cursor (widget);
priv->mouse_cursor_obscured = FALSE;
}
if (priv->select_lines)
return;
if (priv->in_drag)
{
if (gtk_text_get_display_mode (self) == DISPLAY_NORMAL &&
gtk_drag_check_threshold (widget,
priv->drag_start_x, priv->drag_start_y,
x, y))
{
int *ranges;
int n_ranges;
char *text;
GdkDragAction actions;
GdkDrag *drag;
GdkPaintable *paintable;
GdkContentProvider *content;
text = _gtk_text_get_selected_text (self);
gtk_text_get_pixel_ranges (self, &ranges, &n_ranges);
if (priv->editable)
actions = GDK_ACTION_COPY|GDK_ACTION_MOVE;
else
actions = GDK_ACTION_COPY;
content = gdk_content_provider_new_typed (G_TYPE_STRING, text);
drag = gdk_drag_begin (gdk_event_get_surface ((GdkEvent*) event),
gdk_event_get_device ((GdkEvent*) event),
content,
actions,
priv->drag_start_x,
priv->drag_start_y);
g_object_unref (content);
g_signal_connect (drag, "dnd-finished", G_CALLBACK (dnd_finished_cb), self);
paintable = gtk_text_util_create_drag_icon (widget, text, -1);
gtk_drag_icon_set_from_paintable (drag, paintable, ranges[0], 0);
g_clear_object (&paintable);
priv->drag = drag;
g_object_unref (drag);
g_free (ranges);
g_free (text);
priv->in_drag = FALSE;
}
}
else
{
GdkInputSource input_source;
GdkDevice *source;
guint length;
int tmp_pos;
length = gtk_entry_buffer_get_length (get_buffer (self));
if (y < 0)
tmp_pos = 0;
else if (y >= gtk_widget_get_height (GTK_WIDGET (self)))
tmp_pos = length;
else
tmp_pos = gtk_text_find_position (self, x);
source = gdk_event_get_source_device (event);
input_source = gdk_device_get_source (source);
if (priv->select_words)
{
int min, max;
int old_min, old_max;
int pos, bound;
min = gtk_text_move_backward_word (self, tmp_pos, TRUE);
max = gtk_text_move_forward_word (self, tmp_pos, TRUE);
pos = priv->current_pos;
bound = priv->selection_bound;
old_min = MIN (priv->current_pos, priv->selection_bound);
old_max = MAX (priv->current_pos, priv->selection_bound);
if (min < old_min)
{
pos = min;
bound = old_max;
}
else if (old_max < max)
{
pos = max;
bound = old_min;
}
else if (pos == old_min)
{
if (priv->current_pos != min)
pos = max;
}
else
{
if (priv->current_pos != max)
pos = min;
}
gtk_text_set_positions (self, pos, bound);
}
else
gtk_text_set_positions (self, tmp_pos, -1);
/* Update touch handles' position */
if (gtk_simulate_touchscreen () ||
input_source == GDK_SOURCE_TOUCHSCREEN)
{
priv->text_handles_enabled = TRUE;
gtk_text_update_handles (self);
gtk_text_show_magnifier (self, x - priv->scroll_offset, y);
}
}
}
static void
gtk_text_drag_gesture_end (GtkGestureDrag *gesture,
double offset_x,
double offset_y,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
gboolean in_drag;
GdkEventSequence *sequence;
sequence = gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture));
in_drag = priv->in_drag;
priv->in_drag = FALSE;
if (priv->magnifier_popover)
gtk_popover_popdown (GTK_POPOVER (priv->magnifier_popover));
/* Check whether the drag was cancelled rather than finished */
if (!gtk_gesture_handles_sequence (GTK_GESTURE (gesture), sequence))
return;
if (in_drag)
{
int tmp_pos = gtk_text_find_position (self, priv->drag_start_x);
gtk_text_set_selection_bounds (self, tmp_pos, tmp_pos);
}
gtk_text_update_handles (self);
gtk_text_update_primary_selection (self);
}
static void
gtk_text_obscure_mouse_cursor (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->mouse_cursor_obscured)
return;
gtk_widget_set_cursor_from_name (GTK_WIDGET (self), "none");
priv->mouse_cursor_obscured = TRUE;
}
static gboolean
gtk_text_key_controller_key_pressed (GtkEventControllerKey *controller,
guint keyval,
guint keycode,
GdkModifierType state,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
gunichar unichar;
gtk_text_reset_blink_time (self);
gtk_text_pend_cursor_blink (self);
gtk_text_selection_bubble_popup_unset (self);
priv->text_handles_enabled = FALSE;
gtk_text_update_handles (self);
if (keyval == GDK_KEY_Return ||
keyval == GDK_KEY_KP_Enter ||
keyval == GDK_KEY_ISO_Enter ||
keyval == GDK_KEY_Escape)
gtk_text_reset_im_context (self);
unichar = gdk_keyval_to_unicode (keyval);
if (!priv->editable && unichar != 0)
gtk_widget_error_bell (GTK_WIDGET (self));
gtk_text_obscure_mouse_cursor (self);
return FALSE;
}
static void
gtk_text_focus_in (GtkWidget *widget)
{
GtkText *self = GTK_TEXT (widget);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GdkSeat *seat = NULL;
GdkDevice *keyboard = NULL;
gtk_widget_queue_draw (widget);
seat = gdk_display_get_default_seat (gtk_widget_get_display (widget));
if (seat)
keyboard = gdk_seat_get_keyboard (seat);
if (keyboard)
g_signal_connect (keyboard, "notify::direction",
G_CALLBACK (direction_changed), self);
if (priv->editable)
{
gtk_text_schedule_im_reset (self);
gtk_im_context_focus_in (priv->im_context);
}
gtk_text_reset_blink_time (self);
gtk_text_check_cursor_blink (self);
}
static void
gtk_text_focus_out (GtkWidget *widget)
{
GtkText *self = GTK_TEXT (widget);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GdkSeat *seat = NULL;
GdkDevice *keyboard = NULL;
gtk_text_selection_bubble_popup_unset (self);
priv->text_handles_enabled = FALSE;
gtk_text_update_handles (self);
gtk_widget_queue_draw (widget);
seat = gdk_display_get_default_seat (gtk_widget_get_display (widget));
if (seat)
keyboard = gdk_seat_get_keyboard (seat);
if (keyboard)
g_signal_handlers_disconnect_by_func (keyboard, direction_changed, self);
if (priv->editable)
{
gtk_text_schedule_im_reset (self);
gtk_im_context_focus_out (priv->im_context);
}
gtk_text_check_cursor_blink (self);
}
static gboolean
gtk_text_grab_focus (GtkWidget *widget)
{
GtkText *self = GTK_TEXT (widget);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
gboolean select_on_focus;
if (!GTK_WIDGET_CLASS (gtk_text_parent_class)->grab_focus (GTK_WIDGET (self)))
return FALSE;
if (priv->editable && !priv->in_click)
{
g_object_get (gtk_widget_get_settings (widget),
"gtk-entry-select-on-focus",
&select_on_focus,
NULL);
if (select_on_focus)
gtk_text_set_selection_bounds (self, 0, -1);
}
return TRUE;
}
/**
* gtk_text_grab_focus_without_selecting:
* @self: a #GtkText
*
* Causes @self to have keyboard focus.
*
* It behaves like gtk_widget_grab_focus(),
* except that it doesn't select the contents of the self.
* You only want to call this on some special entries
* which the user usually doesn't want to replace all text in,
* such as search-as-you-type entries.
*
* Returns: %TRUE if focus is now inside @self
*/
gboolean
gtk_text_grab_focus_without_selecting (GtkText *self)
{
g_return_val_if_fail (GTK_IS_TEXT (self), FALSE);
return GTK_WIDGET_CLASS (gtk_text_parent_class)->grab_focus (GTK_WIDGET (self));
}
static void
gtk_text_direction_changed (GtkWidget *widget,
GtkTextDirection previous_dir)
{
GtkText *self = GTK_TEXT (widget);
gtk_text_recompute (self);
GTK_WIDGET_CLASS (gtk_text_parent_class)->direction_changed (widget, previous_dir);
}
static void
gtk_text_state_flags_changed (GtkWidget *widget,
GtkStateFlags previous_state)
{
GtkText *self = GTK_TEXT (widget);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GtkStateFlags state;
state = gtk_widget_get_state_flags (GTK_WIDGET (self));
if (gtk_widget_get_realized (widget))
{
set_text_cursor (widget);
priv->mouse_cursor_obscured = FALSE;
}
if (!gtk_widget_is_sensitive (widget))
{
/* Clear any selection */
gtk_text_set_selection_bounds (self, priv->current_pos, priv->current_pos);
}
state &= ~GTK_STATE_FLAG_DROP_ACTIVE;
if (priv->selection_node)
gtk_css_node_set_state (priv->selection_node, state);
if (priv->block_cursor_node)
gtk_css_node_set_state (priv->block_cursor_node, state);
gtk_css_node_set_state (priv->undershoot_node[0], state);
gtk_css_node_set_state (priv->undershoot_node[1], state);
gtk_text_update_cached_style_values (self);
}
static void
gtk_text_root (GtkWidget *widget)
{
GTK_WIDGET_CLASS (gtk_text_parent_class)->root (widget);
gtk_text_recompute (GTK_TEXT (widget));
}
/* GtkEditable method implementations
*/
static void
gtk_text_insert_text (GtkText *self,
const char *text,
int length,
int *position)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int n_inserted;
int n_chars;
n_chars = g_utf8_strlen (text, length);
/*
* The incoming text may a password or other secret. We make sure
* not to copy it into temporary buffers.
*/
begin_change (self);
n_inserted = gtk_entry_buffer_insert_text (get_buffer (self), *position, text, n_chars);
end_change (self);
if (n_inserted != n_chars)
gtk_widget_error_bell (GTK_WIDGET (self));
*position += n_inserted;
update_placeholder_visibility (self);
if (priv->propagate_text_width)
gtk_widget_queue_resize (GTK_WIDGET (self));
}
static void
gtk_text_delete_text (GtkText *self,
int start_pos,
int end_pos)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
begin_change (self);
gtk_entry_buffer_delete_text (get_buffer (self), start_pos, end_pos - start_pos);
end_change (self);
update_placeholder_visibility (self);
if (priv->propagate_text_width)
gtk_widget_queue_resize (GTK_WIDGET (self));
}
static void
gtk_text_delete_selection (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int start_pos = MIN (priv->selection_bound, priv->current_pos);
int end_pos = MAX (priv->selection_bound, priv->current_pos);
gtk_text_delete_text (self, start_pos, end_pos);
}
static void
gtk_text_set_selection_bounds (GtkText *self,
int start,
int end)
{
guint length;
length = gtk_entry_buffer_get_length (get_buffer (self));
if (start < 0)
start = length;
if (end < 0)
end = length;
gtk_text_reset_im_context (self);
gtk_text_set_positions (self, MIN (end, length), MIN (start, length));
gtk_text_update_primary_selection (self);
}
static gboolean
gtk_text_get_selection_bounds (GtkText *self,
int *start,
int *end)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
*start = priv->selection_bound;
*end = priv->current_pos;
return (priv->selection_bound != priv->current_pos);
}
static gunichar
find_invisible_char (GtkWidget *widget)
{
PangoLayout *layout;
PangoAttrList *attr_list;
int i;
gunichar invisible_chars [] = {
0x25cf, /* BLACK CIRCLE */
0x2022, /* BULLET */
0x2731, /* HEAVY ASTERISK */
0x273a /* SIXTEEN POINTED ASTERISK */
};
layout = gtk_widget_create_pango_layout (widget, NULL);
attr_list = pango_attr_list_new ();
pango_attr_list_insert (attr_list, pango_attr_fallback_new (FALSE));
pango_layout_set_attributes (layout, attr_list);
pango_attr_list_unref (attr_list);
for (i = 0; i < G_N_ELEMENTS (invisible_chars); i++)
{
char text[7] = { 0, };
int len, count;
len = g_unichar_to_utf8 (invisible_chars[i], text);
pango_layout_set_text (layout, text, len);
count = pango_layout_get_unknown_glyphs_count (layout);
if (count == 0)
{
g_object_unref (layout);
return invisible_chars[i];
}
}
g_object_unref (layout);
return '*';
}
static void
gtk_text_update_cached_style_values (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (!priv->invisible_char_set)
{
gunichar ch = find_invisible_char (GTK_WIDGET (self));
if (priv->invisible_char != ch)
{
priv->invisible_char = ch;
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_INVISIBLE_CHAR]);
}
}
}
static void
gtk_text_css_changed (GtkWidget *widget,
GtkCssStyleChange *change)
{
GtkText *self = GTK_TEXT (widget);
GTK_WIDGET_CLASS (gtk_text_parent_class)->css_changed (widget, change);
gtk_text_update_cached_style_values (self);
if (change == NULL ||
gtk_css_style_change_affects (change, GTK_CSS_AFFECTS_TEXT |
GTK_CSS_AFFECTS_BACKGROUND |
GTK_CSS_AFFECTS_CONTENT))
gtk_widget_queue_draw (GTK_WIDGET (self));
}
static void
gtk_text_password_hint_free (GtkTextPasswordHint *password_hint)
{
if (password_hint->source_id)
g_source_remove (password_hint->source_id);
g_slice_free (GtkTextPasswordHint, password_hint);
}
static gboolean
gtk_text_remove_password_hint (gpointer data)
{
GtkTextPasswordHint *password_hint = g_object_get_qdata (data, quark_password_hint);
password_hint->position = -1;
password_hint->source_id = 0;
/* Force the string to be redrawn, but now without a visible character */
gtk_text_recompute (GTK_TEXT (data));
return G_SOURCE_REMOVE;
}
static void
update_placeholder_visibility (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->placeholder)
gtk_widget_set_child_visible (priv->placeholder,
gtk_entry_buffer_get_length (priv->buffer) == 0);
}
/* GtkEntryBuffer signal handlers
*/
static void
buffer_inserted_text (GtkEntryBuffer *buffer,
guint position,
const char *chars,
guint n_chars,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
guint password_hint_timeout;
guint current_pos;
int selection_bound;
current_pos = priv->current_pos;
if (current_pos > position)
current_pos += n_chars;
selection_bound = priv->selection_bound;
if (selection_bound > position)
selection_bound += n_chars;
gtk_text_set_positions (self, current_pos, selection_bound);
gtk_text_recompute (self);
gtk_text_history_text_inserted (priv->history, position, chars, -1);
/* Calculate the password hint if it needs to be displayed. */
if (n_chars == 1 && !priv->visible)
{
g_object_get (gtk_widget_get_settings (GTK_WIDGET (self)),
"gtk-entry-password-hint-timeout", &password_hint_timeout,
NULL);
if (password_hint_timeout > 0)
{
GtkTextPasswordHint *password_hint = g_object_get_qdata (G_OBJECT (self),
quark_password_hint);
if (!password_hint)
{
password_hint = g_slice_new0 (GtkTextPasswordHint);
g_object_set_qdata_full (G_OBJECT (self), quark_password_hint, password_hint,
(GDestroyNotify)gtk_text_password_hint_free);
}
password_hint->position = position;
if (password_hint->source_id)
g_source_remove (password_hint->source_id);
password_hint->source_id = g_timeout_add (password_hint_timeout,
(GSourceFunc)gtk_text_remove_password_hint,
self);
g_source_set_name_by_id (password_hint->source_id, "[gtk] gtk_text_remove_password_hint");
}
}
}
static void
buffer_deleted_text (GtkEntryBuffer *buffer,
guint position,
guint n_chars,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
guint end_pos = position + n_chars;
if (gtk_text_history_get_enabled (priv->history))
{
char *deleted_text;
deleted_text = gtk_editable_get_chars (GTK_EDITABLE (self),
position,
end_pos);
gtk_text_history_selection_changed (priv->history,
priv->current_pos,
priv->selection_bound);
gtk_text_history_text_deleted (priv->history,
position,
end_pos,
deleted_text,
-1);
g_free (deleted_text);
}
}
static void
buffer_deleted_text_after (GtkEntryBuffer *buffer,
guint position,
guint n_chars,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
guint end_pos = position + n_chars;
int selection_bound;
guint current_pos;
current_pos = priv->current_pos;
if (current_pos > position)
current_pos -= MIN (current_pos, end_pos) - position;
selection_bound = priv->selection_bound;
if (selection_bound > position)
selection_bound -= MIN (selection_bound, end_pos) - position;
gtk_text_set_positions (self, current_pos, selection_bound);
gtk_text_recompute (self);
/* We might have deleted the selection */
gtk_text_update_primary_selection (self);
/* Disable the password hint if one exists. */
if (!priv->visible)
{
GtkTextPasswordHint *password_hint = g_object_get_qdata (G_OBJECT (self),
quark_password_hint);
if (password_hint)
{
if (password_hint->source_id)
g_source_remove (password_hint->source_id);
password_hint->source_id = 0;
password_hint->position = -1;
}
}
}
static void
buffer_notify_text (GtkEntryBuffer *buffer,
GParamSpec *spec,
GtkText *self)
{
emit_changed (self);
g_object_notify (G_OBJECT (self), "text");
}
static void
buffer_notify_max_length (GtkEntryBuffer *buffer,
GParamSpec *spec,
GtkText *self)
{
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_MAX_LENGTH]);
}
static void
buffer_connect_signals (GtkText *self)
{
g_signal_connect (get_buffer (self), "inserted-text", G_CALLBACK (buffer_inserted_text), self);
g_signal_connect (get_buffer (self), "deleted-text", G_CALLBACK (buffer_deleted_text), self);
g_signal_connect_after (get_buffer (self), "deleted-text", G_CALLBACK (buffer_deleted_text_after), self);
g_signal_connect (get_buffer (self), "notify::text", G_CALLBACK (buffer_notify_text), self);
g_signal_connect (get_buffer (self), "notify::max-length", G_CALLBACK (buffer_notify_max_length), self);
}
static void
buffer_disconnect_signals (GtkText *self)
{
g_signal_handlers_disconnect_by_func (get_buffer (self), buffer_inserted_text, self);
g_signal_handlers_disconnect_by_func (get_buffer (self), buffer_deleted_text, self);
g_signal_handlers_disconnect_by_func (get_buffer (self), buffer_deleted_text_after, self);
g_signal_handlers_disconnect_by_func (get_buffer (self), buffer_notify_text, self);
g_signal_handlers_disconnect_by_func (get_buffer (self), buffer_notify_max_length, self);
}
/* Compute the X position for an offset that corresponds to the "more important
* cursor position for that offset. We use this when trying to guess to which
* end of the selection we should go to when the user hits the left or
* right arrow key.
*/
static int
get_better_cursor_x (GtkText *self,
int offset)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GdkSeat *seat;
GdkDevice *keyboard = NULL;
PangoDirection direction = PANGO_DIRECTION_LTR;
gboolean split_cursor;
PangoLayout *layout = gtk_text_ensure_layout (self, TRUE);
const char *text = pango_layout_get_text (layout);
int index = g_utf8_offset_to_pointer (text, offset) - text;
PangoRectangle strong_pos, weak_pos;
seat = gdk_display_get_default_seat (gtk_widget_get_display (GTK_WIDGET (self)));
if (seat)
keyboard = gdk_seat_get_keyboard (seat);
if (keyboard)
direction = gdk_device_get_direction (keyboard);
g_object_get (gtk_widget_get_settings (GTK_WIDGET (self)),
"gtk-split-cursor", &split_cursor,
NULL);
pango_layout_get_cursor_pos (layout, index, &strong_pos, &weak_pos);
if (split_cursor)
return strong_pos.x / PANGO_SCALE;
else
return (direction == priv->resolved_dir) ? strong_pos.x / PANGO_SCALE : weak_pos.x / PANGO_SCALE;
}
static void
gtk_text_move_cursor (GtkText *self,
GtkMovementStep step,
int count,
gboolean extend_selection)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int new_pos = priv->current_pos;
gtk_text_reset_im_context (self);
if (priv->current_pos != priv->selection_bound && !extend_selection)
{
/* If we have a current selection and aren't extending it, move to the
* start/or end of the selection as appropriate
*/
switch (step)
{
case GTK_MOVEMENT_VISUAL_POSITIONS:
{
int current_x = get_better_cursor_x (self, priv->current_pos);
int bound_x = get_better_cursor_x (self, priv->selection_bound);
if (count <= 0)
new_pos = current_x < bound_x ? priv->current_pos : priv->selection_bound;
else
new_pos = current_x > bound_x ? priv->current_pos : priv->selection_bound;
}
break;
case GTK_MOVEMENT_WORDS:
if (priv->resolved_dir == PANGO_DIRECTION_RTL)
count *= -1;
G_GNUC_FALLTHROUGH;
case GTK_MOVEMENT_LOGICAL_POSITIONS:
if (count < 0)
new_pos = MIN (priv->current_pos, priv->selection_bound);
else
new_pos = MAX (priv->current_pos, priv->selection_bound);
break;
case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
case GTK_MOVEMENT_PARAGRAPH_ENDS:
case GTK_MOVEMENT_BUFFER_ENDS:
new_pos = count < 0 ? 0 : gtk_entry_buffer_get_length (get_buffer (self));
break;
case GTK_MOVEMENT_DISPLAY_LINES:
case GTK_MOVEMENT_PARAGRAPHS:
case GTK_MOVEMENT_PAGES:
case GTK_MOVEMENT_HORIZONTAL_PAGES:
default:
break;
}
}
else
{
switch (step)
{
case GTK_MOVEMENT_LOGICAL_POSITIONS:
new_pos = gtk_text_move_logically (self, new_pos, count);
break;
case GTK_MOVEMENT_VISUAL_POSITIONS:
new_pos = gtk_text_move_visually (self, new_pos, count);
if (priv->current_pos == new_pos)
{
if (!extend_selection)
{
if (!gtk_widget_keynav_failed (GTK_WIDGET (self),
count > 0 ?
GTK_DIR_RIGHT : GTK_DIR_LEFT))
{
GtkWidget *toplevel = GTK_WIDGET (gtk_widget_get_root (GTK_WIDGET (self)));
if (toplevel)
gtk_widget_child_focus (toplevel,
count > 0 ?
GTK_DIR_RIGHT : GTK_DIR_LEFT);
}
}
else
{
gtk_widget_error_bell (GTK_WIDGET (self));
}
}
break;
case GTK_MOVEMENT_WORDS:
if (priv->resolved_dir == PANGO_DIRECTION_RTL)
count *= -1;
while (count > 0)
{
new_pos = gtk_text_move_forward_word (self, new_pos, FALSE);
count--;
}
while (count < 0)
{
new_pos = gtk_text_move_backward_word (self, new_pos, FALSE);
count++;
}
if (priv->current_pos == new_pos)
gtk_widget_error_bell (GTK_WIDGET (self));
break;
case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
case GTK_MOVEMENT_PARAGRAPH_ENDS:
case GTK_MOVEMENT_BUFFER_ENDS:
new_pos = count < 0 ? 0 : gtk_entry_buffer_get_length (get_buffer (self));
if (priv->current_pos == new_pos)
gtk_widget_error_bell (GTK_WIDGET (self));
break;
case GTK_MOVEMENT_DISPLAY_LINES:
case GTK_MOVEMENT_PARAGRAPHS:
case GTK_MOVEMENT_PAGES:
case GTK_MOVEMENT_HORIZONTAL_PAGES:
default:
break;
}
}
if (extend_selection)
gtk_text_set_selection_bounds (self, priv->selection_bound, new_pos);
else
gtk_text_set_selection_bounds (self, new_pos, new_pos);
gtk_text_pend_cursor_blink (self);
}
static void
gtk_text_insert_at_cursor (GtkText *self,
const char *str)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int pos = priv->current_pos;
if (priv->editable)
{
gtk_text_reset_im_context (self);
gtk_text_insert_text (self, str, -1, &pos);
gtk_text_set_selection_bounds (self, pos, pos);
}
}
static void
gtk_text_delete_from_cursor (GtkText *self,
GtkDeleteType type,
int count)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int start_pos = priv->current_pos;
int end_pos = priv->current_pos;
int old_n_bytes = gtk_entry_buffer_get_bytes (get_buffer (self));
gtk_text_reset_im_context (self);
if (!priv->editable)
{
gtk_widget_error_bell (GTK_WIDGET (self));
return;
}
if (priv->selection_bound != priv->current_pos)
{
gtk_text_delete_selection (self);
return;
}
switch (type)
{
case GTK_DELETE_CHARS:
end_pos = gtk_text_move_logically (self, priv->current_pos, count);
gtk_text_delete_text (self, MIN (start_pos, end_pos), MAX (start_pos, end_pos));
break;
case GTK_DELETE_WORDS:
if (count < 0)
{
/* Move to end of current word, or if not on a word, end of previous word */
end_pos = gtk_text_move_backward_word (self, end_pos, FALSE);
end_pos = gtk_text_move_forward_word (self, end_pos, FALSE);
}
else if (count > 0)
{
/* Move to beginning of current word, or if not on a word, begining of next word */
start_pos = gtk_text_move_forward_word (self, start_pos, FALSE);
start_pos = gtk_text_move_backward_word (self, start_pos, FALSE);
}
G_GNUC_FALLTHROUGH;
case GTK_DELETE_WORD_ENDS:
while (count < 0)
{
start_pos = gtk_text_move_backward_word (self, start_pos, FALSE);
count++;
}
while (count > 0)
{
end_pos = gtk_text_move_forward_word (self, end_pos, FALSE);
count--;
}
gtk_text_delete_text (self, start_pos, end_pos);
break;
case GTK_DELETE_DISPLAY_LINE_ENDS:
case GTK_DELETE_PARAGRAPH_ENDS:
if (count < 0)
gtk_text_delete_text (self, 0, priv->current_pos);
else
gtk_text_delete_text (self, priv->current_pos, -1);
break;
case GTK_DELETE_DISPLAY_LINES:
case GTK_DELETE_PARAGRAPHS:
gtk_text_delete_text (self, 0, -1);
break;
case GTK_DELETE_WHITESPACE:
gtk_text_delete_whitespace (self);
break;
default:
break;
}
if (gtk_entry_buffer_get_bytes (get_buffer (self)) == old_n_bytes)
gtk_widget_error_bell (GTK_WIDGET (self));
gtk_text_pend_cursor_blink (self);
}
static void
gtk_text_backspace (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int prev_pos;
gtk_text_reset_im_context (self);
if (!priv->editable)
{
gtk_widget_error_bell (GTK_WIDGET (self));
return;
}
if (priv->selection_bound != priv->current_pos)
{
gtk_text_delete_selection (self);
return;
}
prev_pos = gtk_text_move_logically (self, priv->current_pos, -1);
if (prev_pos < priv->current_pos)
{
PangoLayout *layout = gtk_text_ensure_layout (self, FALSE);
const PangoLogAttr *log_attrs;
int n_attrs;
log_attrs = pango_layout_get_log_attrs_readonly (layout, &n_attrs);
/* Deleting parts of characters */
if (log_attrs[priv->current_pos].backspace_deletes_character)
{
char *cluster_text;
char *normalized_text;
glong len;
cluster_text = gtk_text_get_display_text (self, prev_pos, priv->current_pos);
normalized_text = g_utf8_normalize (cluster_text,
strlen (cluster_text),
G_NORMALIZE_NFD);
len = g_utf8_strlen (normalized_text, -1);
gtk_text_delete_text (self, prev_pos, priv->current_pos);
if (len > 1)
{
int pos = priv->current_pos;
gtk_text_insert_text (self, normalized_text,
g_utf8_offset_to_pointer (normalized_text, len - 1) - normalized_text,
&pos);
gtk_text_set_selection_bounds (self, pos, pos);
}
g_free (normalized_text);
g_free (cluster_text);
}
else
{
gtk_text_delete_text (self, prev_pos, priv->current_pos);
}
}
else
{
gtk_widget_error_bell (GTK_WIDGET (self));
}
gtk_text_pend_cursor_blink (self);
}
static void
gtk_text_copy_clipboard (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->selection_bound != priv->current_pos)
{
char *str;
if (!priv->visible)
{
gtk_widget_error_bell (GTK_WIDGET (self));
return;
}
str = gtk_text_get_display_text (self, priv->selection_bound, priv->current_pos);
gdk_clipboard_set_text (gtk_widget_get_clipboard (GTK_WIDGET (self)), str);
g_free (str);
}
}
static void
gtk_text_cut_clipboard (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (!priv->visible)
{
gtk_widget_error_bell (GTK_WIDGET (self));
return;
}
gtk_text_copy_clipboard (self);
if (priv->editable)
{
if (priv->selection_bound != priv->current_pos)
gtk_text_delete_selection (self);
}
else
{
gtk_widget_error_bell (GTK_WIDGET (self));
}
gtk_text_selection_bubble_popup_unset (self);
gtk_text_update_handles (self);
}
static void
gtk_text_paste_clipboard (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->editable)
gtk_text_paste (self, gtk_widget_get_clipboard (GTK_WIDGET (self)));
else
gtk_widget_error_bell (GTK_WIDGET (self));
gtk_text_update_handles (self);
}
static void
gtk_text_delete_cb (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->editable)
{
if (priv->selection_bound != priv->current_pos)
gtk_text_delete_selection (self);
}
}
static void
gtk_text_toggle_overwrite (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
priv->overwrite_mode = !priv->overwrite_mode;
if (priv->overwrite_mode)
{
if (!priv->block_cursor_node)
{
GtkCssNode *widget_node = gtk_widget_get_css_node (GTK_WIDGET (self));
priv->block_cursor_node = gtk_css_node_new ();
gtk_css_node_set_name (priv->block_cursor_node, g_quark_from_static_string ("block-cursor"));
gtk_css_node_set_parent (priv->block_cursor_node, widget_node);
gtk_css_node_set_state (priv->block_cursor_node, gtk_css_node_get_state (widget_node));
g_object_unref (priv->block_cursor_node);
}
}
else
{
if (priv->block_cursor_node)
{
gtk_css_node_set_parent (priv->block_cursor_node, NULL);
priv->block_cursor_node = NULL;
}
}
gtk_text_pend_cursor_blink (self);
gtk_widget_queue_draw (GTK_WIDGET (self));
}
static void
gtk_text_select_all (GtkText *self)
{
gtk_text_select_line (self);
}
static void
gtk_text_real_activate (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->activates_default)
gtk_widget_activate_default (GTK_WIDGET (self));
}
static void
direction_changed (GdkDevice *device,
GParamSpec *pspec,
GtkText *self)
{
gtk_text_recompute (self);
}
/* IM Context Callbacks
*/
static void
gtk_text_commit_cb (GtkIMContext *context,
const char *str,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->editable)
{
gtk_text_enter_text (self, str);
gtk_text_obscure_mouse_cursor (self);
}
}
static void
gtk_text_preedit_changed_cb (GtkIMContext *context,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->editable)
{
char *preedit_string;
int cursor_pos;
gtk_text_obscure_mouse_cursor (self);
gtk_im_context_get_preedit_string (priv->im_context,
&preedit_string, NULL,
&cursor_pos);
g_signal_emit (self, signals[PREEDIT_CHANGED], 0, preedit_string);
priv->preedit_length = strlen (preedit_string);
cursor_pos = CLAMP (cursor_pos, 0, g_utf8_strlen (preedit_string, -1));
priv->preedit_cursor = cursor_pos;
g_free (preedit_string);
gtk_text_recompute (self);
}
}
static gboolean
gtk_text_retrieve_surrounding_cb (GtkIMContext *context,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
char *text;
/* XXXX ??? does this even make sense when text is not visible? Should we return FALSE? */
text = gtk_text_get_display_text (self, 0, -1);
gtk_im_context_set_surrounding (context, text, strlen (text), /* Length in bytes */
g_utf8_offset_to_pointer (text, priv->current_pos) - text);
g_free (text);
return TRUE;
}
static gboolean
gtk_text_delete_surrounding_cb (GtkIMContext *slave,
int offset,
int n_chars,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->editable)
gtk_text_delete_text (self,
priv->current_pos + offset,
priv->current_pos + offset + n_chars);
return TRUE;
}
/* Internal functions
*/
/* Used for im_commit_cb and inserting Unicode chars */
void
gtk_text_enter_text (GtkText *self,
const char *str)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int tmp_pos;
gboolean old_need_im_reset;
guint text_length;
old_need_im_reset = priv->need_im_reset;
priv->need_im_reset = FALSE;
if (priv->selection_bound != priv->current_pos)
gtk_text_delete_selection (self);
else
{
if (priv->overwrite_mode)
{
text_length = gtk_entry_buffer_get_length (get_buffer (self));
if (priv->current_pos < text_length)
gtk_text_delete_from_cursor (self, GTK_DELETE_CHARS, 1);
}
}
tmp_pos = priv->current_pos;
gtk_text_insert_text (self, str, strlen (str), &tmp_pos);
gtk_text_set_selection_bounds (self, tmp_pos, tmp_pos);
priv->need_im_reset = old_need_im_reset;
}
/* All changes to priv->current_pos and priv->selection_bound
* should go through this function.
*/
void
gtk_text_set_positions (GtkText *self,
int current_pos,
int selection_bound)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
gboolean changed = FALSE;
g_object_freeze_notify (G_OBJECT (self));
if (current_pos != -1 &&
priv->current_pos != current_pos)
{
priv->current_pos = current_pos;
changed = TRUE;
g_object_notify (G_OBJECT (self), "cursor-position");
}
if (selection_bound != -1 &&
priv->selection_bound != selection_bound)
{
priv->selection_bound = selection_bound;
changed = TRUE;
g_object_notify (G_OBJECT (self), "selection-bound");
}
g_object_thaw_notify (G_OBJECT (self));
if (priv->current_pos != priv->selection_bound)
{
if (!priv->selection_node)
{
GtkCssNode *widget_node = gtk_widget_get_css_node (GTK_WIDGET (self));
priv->selection_node = gtk_css_node_new ();
gtk_css_node_set_name (priv->selection_node, g_quark_from_static_string ("selection"));
gtk_css_node_set_parent (priv->selection_node, widget_node);
gtk_css_node_set_state (priv->selection_node, gtk_css_node_get_state (widget_node));
g_object_unref (priv->selection_node);
}
}
else
{
if (priv->selection_node)
{
gtk_css_node_set_parent (priv->selection_node, NULL);
priv->selection_node = NULL;
}
}
if (changed)
{
gtk_text_update_clipboard_actions (self);
gtk_text_recompute (self);
}
}
static void
gtk_text_reset_layout (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->cached_layout)
{
g_object_unref (priv->cached_layout);
priv->cached_layout = NULL;
}
}
static void
gtk_text_recompute (GtkText *self)
{
gtk_text_reset_layout (self);
gtk_text_check_cursor_blink (self);
gtk_text_adjust_scroll (self);
update_im_cursor_location (self);
gtk_text_update_handles (self);
gtk_widget_queue_draw (GTK_WIDGET (self));
}
static PangoLayout *
gtk_text_create_layout (GtkText *self,
gboolean include_preedit)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GtkWidget *widget = GTK_WIDGET (self);
PangoLayout *layout;
PangoAttrList *tmp_attrs = NULL;
char *preedit_string = NULL;
int preedit_length = 0;
PangoAttrList *preedit_attrs = NULL;
char *display_text;
guint n_bytes;
layout = gtk_widget_create_pango_layout (widget, NULL);
pango_layout_set_single_paragraph_mode (layout, TRUE);
tmp_attrs = gtk_css_style_get_pango_attributes (gtk_css_node_get_style (gtk_widget_get_css_node (widget)));
tmp_attrs = _gtk_pango_attr_list_merge (tmp_attrs, priv->attrs);
display_text = gtk_text_get_display_text (self, 0, -1);
n_bytes = strlen (display_text);
if (include_preedit)
{
gtk_im_context_get_preedit_string (priv->im_context,
&preedit_string, &preedit_attrs, NULL);
preedit_length = priv->preedit_length;
}
if (preedit_length)
{
GString *tmp_string = g_string_new (display_text);
int pos;
pos = g_utf8_offset_to_pointer (display_text, priv->current_pos) - display_text;
g_string_insert (tmp_string, pos, preedit_string);
pango_layout_set_text (layout, tmp_string->str, tmp_string->len);
if (tmp_attrs)
pango_attr_list_splice (tmp_attrs, preedit_attrs, pos, preedit_length);
else
tmp_attrs = pango_attr_list_ref (preedit_attrs);
g_string_free (tmp_string, TRUE);
}
else
{
PangoDirection pango_dir;
if (gtk_text_get_display_mode (self) == DISPLAY_NORMAL)
pango_dir = gdk_find_base_dir (display_text, n_bytes);
else
pango_dir = PANGO_DIRECTION_NEUTRAL;
if (pango_dir == PANGO_DIRECTION_NEUTRAL)
{
if (gtk_widget_has_focus (widget))
{
GdkDisplay *display;
GdkSeat *seat;
GdkDevice *keyboard = NULL;
PangoDirection direction = PANGO_DIRECTION_LTR;
display = gtk_widget_get_display (widget);
seat = gdk_display_get_default_seat (display);
if (seat)
keyboard = gdk_seat_get_keyboard (seat);
if (keyboard)
direction = gdk_device_get_direction (keyboard);
if (direction == PANGO_DIRECTION_RTL)
pango_dir = PANGO_DIRECTION_RTL;
else
pango_dir = PANGO_DIRECTION_LTR;
}
else
{
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
pango_dir = PANGO_DIRECTION_RTL;
else
pango_dir = PANGO_DIRECTION_LTR;
}
}
pango_context_set_base_dir (gtk_widget_get_pango_context (widget), pango_dir);
priv->resolved_dir = pango_dir;
pango_layout_set_text (layout, display_text, n_bytes);
}
pango_layout_set_attributes (layout, tmp_attrs);
if (priv->tabs)
pango_layout_set_tabs (layout, priv->tabs);
g_free (preedit_string);
g_free (display_text);
pango_attr_list_unref (preedit_attrs);
pango_attr_list_unref (tmp_attrs);
return layout;
}
static PangoLayout *
gtk_text_ensure_layout (GtkText *self,
gboolean include_preedit)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->preedit_length > 0 &&
!include_preedit != !priv->cache_includes_preedit)
gtk_text_reset_layout (self);
if (!priv->cached_layout)
{
priv->cached_layout = gtk_text_create_layout (self, include_preedit);
priv->cache_includes_preedit = include_preedit;
}
return priv->cached_layout;
}
static void
get_layout_position (GtkText *self,
int *x,
int *y)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
const int text_height = gtk_widget_get_height (GTK_WIDGET (self));
PangoLayout *layout;
PangoRectangle logical_rect;
int y_pos, area_height;
PangoLayoutLine *line;
layout = gtk_text_ensure_layout (self, TRUE);
area_height = PANGO_SCALE * text_height;
line = pango_layout_get_lines_readonly (layout)->data;
pango_layout_line_get_extents (line, NULL, &logical_rect);
/* Align primarily for locale's ascent/descent */
if (priv->text_baseline < 0)
y_pos = ((area_height - priv->ascent - priv->descent) / 2 +
priv->ascent + logical_rect.y);
else
y_pos = PANGO_SCALE * priv->text_baseline - pango_layout_get_baseline (layout);
/* Now see if we need to adjust to fit in actual drawn string */
if (logical_rect.height > area_height)
y_pos = (area_height - logical_rect.height) / 2;
else if (y_pos < 0)
y_pos = 0;
else if (y_pos + logical_rect.height > area_height)
y_pos = area_height - logical_rect.height;
y_pos = y_pos / PANGO_SCALE;
if (x)
*x = - priv->scroll_offset;
if (y)
*y = y_pos;
}
#define GRAPHENE_RECT_FROM_RECT(_r) (GRAPHENE_RECT_INIT ((_r)->x, (_r)->y, (_r)->width, (_r)->height))
static void
gtk_text_draw_text (GtkText *self,
GtkSnapshot *snapshot)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GtkWidget *widget = GTK_WIDGET (self);
GtkStyleContext *context;
PangoLayout *layout;
int x, y;
/* Nothing to display at all */
if (gtk_text_get_display_mode (self) == DISPLAY_BLANK)
return;
context = gtk_widget_get_style_context (widget);
layout = gtk_text_ensure_layout (self, TRUE);
gtk_text_get_layout_offsets (self, &x, &y);
gtk_snapshot_render_layout (snapshot, context, x, y, layout);
if (priv->selection_bound != priv->current_pos)
{
const char *text = pango_layout_get_text (layout);
int start_index = g_utf8_offset_to_pointer (text, priv->selection_bound) - text;
int end_index = g_utf8_offset_to_pointer (text, priv->current_pos) - text;
cairo_region_t *clip;
cairo_rectangle_int_t clip_extents;
int range[2];
int width, height;
width = gtk_widget_get_width (widget);
height = gtk_widget_get_height (widget);
range[0] = MIN (start_index, end_index);
range[1] = MAX (start_index, end_index);
gtk_style_context_save_to_node (context, priv->selection_node);
clip = gdk_pango_layout_get_clip_region (layout, x, y, range, 1);
cairo_region_get_extents (clip, &clip_extents);
gtk_snapshot_push_clip (snapshot, &GRAPHENE_RECT_FROM_RECT (&clip_extents));
gtk_snapshot_render_background (snapshot, context, 0, 0, width, height);
gtk_snapshot_render_layout (snapshot, context, x, y, layout);
gtk_snapshot_pop (snapshot);
cairo_region_destroy (clip);
gtk_style_context_restore (context);
}
}
static void
gtk_text_draw_cursor (GtkText *self,
GtkSnapshot *snapshot,
CursorType type)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GtkWidget *widget = GTK_WIDGET (self);
GtkStyleContext *context;
PangoRectangle cursor_rect;
int cursor_index;
gboolean block;
gboolean block_at_line_end;
PangoLayout *layout;
const char *text;
int x, y;
context = gtk_widget_get_style_context (widget);
layout = g_object_ref (gtk_text_ensure_layout (self, TRUE));
text = pango_layout_get_text (layout);
gtk_text_get_layout_offsets (self, &x, &y);
if (type == CURSOR_DND)
cursor_index = g_utf8_offset_to_pointer (text, priv->dnd_position) - text;
else
cursor_index = g_utf8_offset_to_pointer (text, priv->current_pos + priv->preedit_cursor) - text;
if (!priv->overwrite_mode)
block = FALSE;
else
block = _gtk_text_util_get_block_cursor_location (layout,
cursor_index, &cursor_rect, &block_at_line_end);
if (!block)
{
gtk_snapshot_render_insertion_cursor (snapshot, context,
x, y,
layout, cursor_index, priv->resolved_dir);
}
else /* overwrite_mode */
{
int width = gtk_widget_get_width (widget);
int height = gtk_widget_get_height (widget);
graphene_rect_t bounds;
bounds.origin.x = PANGO_PIXELS (cursor_rect.x) + x;
bounds.origin.y = PANGO_PIXELS (cursor_rect.y) + y;
bounds.size.width = PANGO_PIXELS (cursor_rect.width);
bounds.size.height = PANGO_PIXELS (cursor_rect.height);
gtk_style_context_save_to_node (context, priv->block_cursor_node);
gtk_snapshot_push_clip (snapshot, &bounds);
gtk_snapshot_render_background (snapshot, context, 0, 0, width, height);
gtk_snapshot_render_layout (snapshot, context, x, y, layout);
gtk_snapshot_pop (snapshot);
gtk_style_context_restore (context);
}
g_object_unref (layout);
}
static void
gtk_text_handle_dragged (GtkTextHandle *handle,
int x,
int y,
GtkText *self)
{
int cursor_pos, selection_bound_pos, tmp_pos, *old_pos;
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
gtk_text_selection_bubble_popup_unset (self);
cursor_pos = priv->current_pos;
selection_bound_pos = priv->selection_bound;
tmp_pos = gtk_text_find_position (self, x + priv->scroll_offset);
if (handle == priv->text_handles[TEXT_HANDLE_CURSOR])
{
/* Avoid running past the other handle in selection mode */
if (tmp_pos >= selection_bound_pos &&
gtk_widget_is_visible (GTK_WIDGET (priv->text_handles[TEXT_HANDLE_SELECTION_BOUND])))
{
tmp_pos = selection_bound_pos - 1;
}
old_pos = &cursor_pos;
}
else if (handle == priv->text_handles[TEXT_HANDLE_SELECTION_BOUND])
{
/* Avoid running past the other handle */
if (tmp_pos <= cursor_pos)
tmp_pos = cursor_pos + 1;
old_pos = &selection_bound_pos;
}
else
g_assert_not_reached ();
if (tmp_pos != *old_pos)
{
*old_pos = tmp_pos;
if (handle == priv->text_handles[TEXT_HANDLE_CURSOR] &&
!gtk_widget_is_visible (GTK_WIDGET (priv->text_handles[TEXT_HANDLE_SELECTION_BOUND])))
gtk_text_set_positions (self, cursor_pos, cursor_pos);
else
gtk_text_set_positions (self, cursor_pos, selection_bound_pos);
if (handle == priv->text_handles[TEXT_HANDLE_CURSOR])
priv->cursor_handle_dragged = TRUE;
else if (handle == priv->text_handles[TEXT_HANDLE_SELECTION_BOUND])
priv->selection_handle_dragged = TRUE;
gtk_text_update_handles (self);
}
gtk_text_show_magnifier (self, x, y);
}
static void
gtk_text_handle_drag_started (GtkTextHandle *handle,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
priv->cursor_handle_dragged = FALSE;
priv->selection_handle_dragged = FALSE;
}
static void
gtk_text_handle_drag_finished (GtkTextHandle *handle,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (!priv->cursor_handle_dragged && !priv->selection_handle_dragged)
{
GtkSettings *settings;
guint double_click_time;
settings = gtk_widget_get_settings (GTK_WIDGET (self));
g_object_get (settings, "gtk-double-click-time", &double_click_time, NULL);
if (g_get_monotonic_time() - priv->handle_place_time < double_click_time * 1000)
{
gtk_text_select_word (self);
gtk_text_update_handles (self);
}
else
gtk_text_selection_bubble_popup_set (self);
}
if (priv->magnifier_popover)
gtk_popover_popdown (GTK_POPOVER (priv->magnifier_popover));
}
static void
gtk_text_schedule_im_reset (GtkText *self)
{
GtkTextPrivate *priv;
priv = gtk_text_get_instance_private (self);
priv->need_im_reset = TRUE;
}
void
gtk_text_reset_im_context (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (GTK_IS_TEXT (self));
if (priv->need_im_reset)
{
priv->need_im_reset = FALSE;
gtk_im_context_reset (priv->im_context);
}
}
static int
gtk_text_find_position (GtkText *self,
int x)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
PangoLayout *layout;
PangoLayoutLine *line;
int index;
int pos;
int trailing;
const char *text;
int cursor_index;
layout = gtk_text_ensure_layout (self, TRUE);
text = pango_layout_get_text (layout);
cursor_index = g_utf8_offset_to_pointer (text, priv->current_pos) - text;
line = pango_layout_get_lines_readonly (layout)->data;
pango_layout_line_x_to_index (line, x * PANGO_SCALE, &index, &trailing);
if (index >= cursor_index && priv->preedit_length)
{
if (index >= cursor_index + priv->preedit_length)
index -= priv->preedit_length;
else
{
index = cursor_index;
trailing = 0;
}
}
pos = g_utf8_pointer_to_offset (text, text + index);
pos += trailing;
return pos;
}
static void
gtk_text_get_cursor_locations (GtkText *self,
int *strong_x,
int *weak_x)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
DisplayMode mode = gtk_text_get_display_mode (self);
/* Nothing to display at all, so no cursor is relevant */
if (mode == DISPLAY_BLANK)
{
if (strong_x)
*strong_x = 0;
if (weak_x)
*weak_x = 0;
}
else
{
PangoLayout *layout = gtk_text_ensure_layout (self, TRUE);
const char *text = pango_layout_get_text (layout);
PangoRectangle strong_pos, weak_pos;
int index;
index = g_utf8_offset_to_pointer (text, priv->current_pos + priv->preedit_cursor) - text;
pango_layout_get_cursor_pos (layout, index, &strong_pos, &weak_pos);
if (strong_x)
*strong_x = strong_pos.x / PANGO_SCALE;
if (weak_x)
*weak_x = weak_pos.x / PANGO_SCALE;
}
}
static gboolean
gtk_text_get_is_selection_handle_dragged (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GtkTextHandle *handle;
if (priv->current_pos >= priv->selection_bound)
handle = priv->text_handles[TEXT_HANDLE_CURSOR];
else
handle = priv->text_handles[TEXT_HANDLE_SELECTION_BOUND];
return handle && gtk_text_handle_get_is_dragged (handle);
}
static void
gtk_text_get_scroll_limits (GtkText *self,
int *min_offset,
int *max_offset)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
float xalign;
PangoLayout *layout;
PangoLayoutLine *line;
PangoRectangle logical_rect;
int text_width, width;
layout = gtk_text_ensure_layout (self, TRUE);
line = pango_layout_get_lines_readonly (layout)->data;
pango_layout_line_get_extents (line, NULL, &logical_rect);
/* Display as much text as we can */
if (priv->resolved_dir == PANGO_DIRECTION_LTR)
xalign = priv->xalign;
else
xalign = 1.0 - priv->xalign;
text_width = PANGO_PIXELS(logical_rect.width);
width = gtk_widget_get_width (GTK_WIDGET (self));
if (text_width > width)
{
*min_offset = 0;
*max_offset = text_width - width;
}
else
{
*min_offset = (text_width - width) * xalign;
*max_offset = *min_offset;
}
}
static void
gtk_text_adjust_scroll (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
const int text_width = gtk_widget_get_width (GTK_WIDGET (self));
int min_offset, max_offset;
int strong_x, weak_x;
int strong_xoffset, weak_xoffset;
if (!gtk_widget_get_realized (GTK_WIDGET (self)))
return;
gtk_text_get_scroll_limits (self, &min_offset, &max_offset);
priv->scroll_offset = CLAMP (priv->scroll_offset, min_offset, max_offset);
if (gtk_text_get_is_selection_handle_dragged (self))
{
/* The text handle corresponding to the selection bound is
* being dragged, ensure it stays onscreen even if we scroll
* cursors away, this is so both handles can cause content
* to scroll.
*/
strong_x = weak_x = gtk_text_get_selection_bound_location (self);
}
else
{
/* And make sure cursors are on screen. Note that the cursor is
* actually drawn one pixel into the INNER_BORDER space on
* the right, when the scroll is at the utmost right. This
* looks better to to me than confining the cursor inside the
* border entirely, though it means that the cursor gets one
* pixel closer to the edge of the widget on the right than
* on the left. This might need changing if one changed
* INNER_BORDER from 2 to 1, as one would do on a
* small-screen-real-estate display.
*
* We always make sure that the strong cursor is on screen, and
* put the weak cursor on screen if possible.
*/
gtk_text_get_cursor_locations (self, &strong_x, &weak_x);
}
strong_xoffset = strong_x - priv->scroll_offset;
if (strong_xoffset < 0)
{
priv->scroll_offset += strong_xoffset;
strong_xoffset = 0;
}
else if (strong_xoffset > text_width)
{
priv->scroll_offset += strong_xoffset - text_width;
strong_xoffset = text_width;
}
weak_xoffset = weak_x - priv->scroll_offset;
if (weak_xoffset < 0 && strong_xoffset - weak_xoffset <= text_width)
{
priv->scroll_offset += weak_xoffset;
}
else if (weak_xoffset > text_width &&
strong_xoffset - (weak_xoffset - text_width) >= 0)
{
priv->scroll_offset += weak_xoffset - text_width;
}
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_SCROLL_OFFSET]);
gtk_text_update_handles (self);
}
static int
gtk_text_move_visually (GtkText *self,
int start,
int count)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int index;
PangoLayout *layout = gtk_text_ensure_layout (self, FALSE);
const char *text;
text = pango_layout_get_text (layout);
index = g_utf8_offset_to_pointer (text, start) - text;
while (count != 0)
{
int new_index, new_trailing;
gboolean split_cursor;
gboolean strong;
g_object_get (gtk_widget_get_settings (GTK_WIDGET (self)),
"gtk-split-cursor", &split_cursor,
NULL);
if (split_cursor)
strong = TRUE;
else
{
GdkDisplay *display;
GdkSeat *seat;
GdkDevice *keyboard = NULL;
PangoDirection direction = PANGO_DIRECTION_LTR;
display = gtk_widget_get_display (GTK_WIDGET (self));
seat = gdk_display_get_default_seat (display);
if (seat)
keyboard = gdk_seat_get_keyboard (seat);
if (keyboard)
direction = gdk_device_get_direction (keyboard);
strong = direction == priv->resolved_dir;
}
if (count > 0)
{
pango_layout_move_cursor_visually (layout, strong, index, 0, 1, &new_index, &new_trailing);
count--;
}
else
{
pango_layout_move_cursor_visually (layout, strong, index, 0, -1, &new_index, &new_trailing);
count++;
}
if (new_index < 0)
index = 0;
else if (new_index != G_MAXINT)
index = new_index;
while (new_trailing--)
index = g_utf8_next_char (text + index) - text;
}
return g_utf8_pointer_to_offset (text, text + index);
}
static int
gtk_text_move_logically (GtkText *self,
int start,
int count)
{
int new_pos = start;
guint length;
length = gtk_entry_buffer_get_length (get_buffer (self));
/* Prevent any leak of information */
if (gtk_text_get_display_mode (self) != DISPLAY_NORMAL)
{
new_pos = CLAMP (start + count, 0, length);
}
else
{
PangoLayout *layout = gtk_text_ensure_layout (self, FALSE);
const PangoLogAttr *log_attrs;
int n_attrs;
log_attrs = pango_layout_get_log_attrs_readonly (layout, &n_attrs);
while (count > 0 && new_pos < length)
{
do
new_pos++;
while (new_pos < length && !log_attrs[new_pos].is_cursor_position);
count--;
}
while (count < 0 && new_pos > 0)
{
do
new_pos--;
while (new_pos > 0 && !log_attrs[new_pos].is_cursor_position);
count++;
}
}
return new_pos;
}
static int
gtk_text_move_forward_word (GtkText *self,
int start,
gboolean allow_whitespace)
{
int new_pos = start;
guint length;
length = gtk_entry_buffer_get_length (get_buffer (self));
/* Prevent any leak of information */
if (gtk_text_get_display_mode (self) != DISPLAY_NORMAL)
{
new_pos = length;
}
else if (new_pos < length)
{
PangoLayout *layout = gtk_text_ensure_layout (self, FALSE);
const PangoLogAttr *log_attrs;
int n_attrs;
log_attrs = pango_layout_get_log_attrs_readonly (layout, &n_attrs);
/* Find the next word boundary */
new_pos++;
while (new_pos < n_attrs - 1 && !(log_attrs[new_pos].is_word_end ||
(log_attrs[new_pos].is_word_start && allow_whitespace)))
new_pos++;
}
return new_pos;
}
static int
gtk_text_move_backward_word (GtkText *self,
int start,
gboolean allow_whitespace)
{
int new_pos = start;
/* Prevent any leak of information */
if (gtk_text_get_display_mode (self) != DISPLAY_NORMAL)
{
new_pos = 0;
}
else if (start > 0)
{
PangoLayout *layout = gtk_text_ensure_layout (self, FALSE);
const PangoLogAttr *log_attrs;
int n_attrs;
log_attrs = pango_layout_get_log_attrs_readonly (layout, &n_attrs);
new_pos = start - 1;
/* Find the previous word boundary */
while (new_pos > 0 && !(log_attrs[new_pos].is_word_start ||
(log_attrs[new_pos].is_word_end && allow_whitespace)))
new_pos--;
}
return new_pos;
}
static void
gtk_text_delete_whitespace (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
PangoLayout *layout = gtk_text_ensure_layout (self, FALSE);
const PangoLogAttr *log_attrs;
int n_attrs;
int start, end;
log_attrs = pango_layout_get_log_attrs_readonly (layout, &n_attrs);
start = end = priv->current_pos;
while (start > 0 && log_attrs[start-1].is_white)
start--;
while (end < n_attrs && log_attrs[end].is_white)
end++;
if (start != end)
gtk_text_delete_text (self, start, end);
}
static void
gtk_text_select_word (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int start_pos = gtk_text_move_backward_word (self, priv->current_pos, TRUE);
int end_pos = gtk_text_move_forward_word (self, priv->current_pos, TRUE);
gtk_text_set_selection_bounds (self, start_pos, end_pos);
}
static void
gtk_text_select_line (GtkText *self)
{
gtk_text_set_selection_bounds (self, 0, -1);
}
static int
truncate_multiline (const char *text)
{
int length;
for (length = 0;
text[length] && text[length] != '\n' && text[length] != '\r';
length++);
return length;
}
static void
paste_received (GObject *clipboard,
GAsyncResult *result,
gpointer data)
{
GtkText *self = GTK_TEXT (data);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
char *text;
int pos, start, end;
int length = -1;
text = gdk_clipboard_read_text_finish (GDK_CLIPBOARD (clipboard), result, NULL);
if (text == NULL)
{
gtk_widget_error_bell (GTK_WIDGET (self));
return;
}
if (priv->insert_pos >= 0)
{
pos = priv->insert_pos;
start = priv->selection_bound;
end = priv->current_pos;
if (!((start <= pos && pos <= end) || (end <= pos && pos <= start)))
gtk_text_set_selection_bounds (self, pos, pos);
priv->insert_pos = -1;
}
if (priv->truncate_multiline)
length = truncate_multiline (text);
begin_change (self);
if (priv->selection_bound != priv->current_pos)
gtk_text_delete_selection (self);
pos = priv->current_pos;
gtk_text_insert_text (self, text, length, &pos);
gtk_text_set_selection_bounds (self, pos, pos);
end_change (self);
g_free (text);
g_object_unref (self);
}
static void
gtk_text_paste (GtkText *self,
GdkClipboard *clipboard)
{
gdk_clipboard_read_text_async (clipboard, NULL, paste_received, g_object_ref (self));
}
static void
gtk_text_update_primary_selection (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GdkClipboard *clipboard;
if (!gtk_widget_get_realized (GTK_WIDGET (self)))
return;
clipboard = gtk_widget_get_primary_clipboard (GTK_WIDGET (self));
if (priv->selection_bound != priv->current_pos)
{
gdk_clipboard_set_content (clipboard, priv->selection_content);
}
else
{
if (gdk_clipboard_get_content (clipboard) == priv->selection_content)
gdk_clipboard_set_content (clipboard, NULL);
}
}
/* Public API
*/
/**
* gtk_text_new:
*
* Creates a new self.
*
* Returns: a new #GtkText.
*/
GtkWidget *
gtk_text_new (void)
{
return g_object_new (GTK_TYPE_TEXT, NULL);
}
/**
* gtk_text_new_with_buffer:
* @buffer: The buffer to use for the new #GtkText.
*
* Creates a new self with the specified text buffer.
*
* Returns: a new #GtkText
*/
GtkWidget *
gtk_text_new_with_buffer (GtkEntryBuffer *buffer)
{
g_return_val_if_fail (GTK_IS_ENTRY_BUFFER (buffer), NULL);
return g_object_new (GTK_TYPE_TEXT, "buffer", buffer, NULL);
}
static GtkEntryBuffer *
get_buffer (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->buffer == NULL)
{
GtkEntryBuffer *buffer;
buffer = gtk_entry_buffer_new (NULL, 0);
gtk_text_set_buffer (self, buffer);
g_object_unref (buffer);
}
return priv->buffer;
}
/**
* gtk_text_get_buffer:
* @self: a #GtkText
*
* Get the #GtkEntryBuffer object which holds the text for
* this self.
*
* Returns: (transfer none): A #GtkEntryBuffer object.
*/
GtkEntryBuffer *
gtk_text_get_buffer (GtkText *self)
{
g_return_val_if_fail (GTK_IS_TEXT (self), NULL);
return get_buffer (self);
}
/**
* gtk_text_set_buffer:
* @self: a #GtkText
* @buffer: a #GtkEntryBuffer
*
* Set the #GtkEntryBuffer object which holds the text for
* this widget.
*/
void
gtk_text_set_buffer (GtkText *self,
GtkEntryBuffer *buffer)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GObject *obj;
gboolean had_buffer = FALSE;
guint old_length = 0;
guint new_length = 0;
g_return_if_fail (GTK_IS_TEXT (self));
if (buffer)
{
g_return_if_fail (GTK_IS_ENTRY_BUFFER (buffer));
g_object_ref (buffer);
}
if (priv->buffer)
{
had_buffer = TRUE;
old_length = gtk_entry_buffer_get_length (priv->buffer);
buffer_disconnect_signals (self);
g_object_unref (priv->buffer);
}
priv->buffer = buffer;
if (priv->buffer)
{
new_length = gtk_entry_buffer_get_length (priv->buffer);
buffer_connect_signals (self);
}
obj = G_OBJECT (self);
g_object_freeze_notify (obj);
g_object_notify_by_pspec (obj, text_props[PROP_BUFFER]);
g_object_notify_by_pspec (obj, text_props[PROP_MAX_LENGTH]);
if (old_length != 0 || new_length != 0)
g_object_notify (obj, "text");
if (had_buffer)
{
gtk_text_set_selection_bounds (self, 0, 0);
gtk_text_recompute (self);
}
g_object_thaw_notify (obj);
}
static void
gtk_text_set_editable (GtkText *self,
gboolean is_editable)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (is_editable != priv->editable)
{
GtkWidget *widget = GTK_WIDGET (self);
if (!is_editable)
{
gtk_text_reset_im_context (self);
if (gtk_widget_has_focus (widget))
gtk_im_context_focus_out (priv->im_context);
priv->preedit_length = 0;
priv->preedit_cursor = 0;
gtk_widget_remove_css_class (GTK_WIDGET (self), GTK_STYLE_CLASS_READ_ONLY);
}
else
{
gtk_widget_add_css_class (GTK_WIDGET (self), GTK_STYLE_CLASS_READ_ONLY);
}
priv->editable = is_editable;
if (is_editable && gtk_widget_has_focus (widget))
gtk_im_context_focus_in (priv->im_context);
gtk_event_controller_key_set_im_context (GTK_EVENT_CONTROLLER_KEY (priv->key_controller),
is_editable ? priv->im_context : NULL);
g_object_notify (G_OBJECT (self), "editable");
}
}
static void
gtk_text_set_text (GtkText *self,
const char *text)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int tmp_pos;
g_return_if_fail (GTK_IS_TEXT (self));
g_return_if_fail (text != NULL);
/* Actually setting the text will affect the cursor and selection;
* if the contents don't actually change, this will look odd to the user.
*/
if (strcmp (gtk_entry_buffer_get_text (get_buffer (self)), text) == 0)
return;
gtk_text_history_begin_irreversible_action (priv->history);
begin_change (self);
g_object_freeze_notify (G_OBJECT (self));
gtk_text_delete_text (self, 0, -1);
tmp_pos = 0;
gtk_text_insert_text (self, text, strlen (text), &tmp_pos);
g_object_thaw_notify (G_OBJECT (self));
end_change (self);
gtk_text_history_end_irreversible_action (priv->history);
}
/**
* gtk_text_set_visibility:
* @self: a #GtkText
* @visible: %TRUE if the contents of the self are displayed
* as plaintext
*
* Sets whether the contents of the self are visible or not.
* When visibility is set to %FALSE, characters are displayed
* as the invisible char, and will also appear that way when
* the text in the self widget is copied to the clipboard.
*
* By default, GTK picks the best invisible character available
* in the current font, but it can be changed with
* gtk_text_set_invisible_char().
*
* Note that you probably want to set #GtkText:input-purpose
* to %GTK_INPUT_PURPOSE_PASSWORD or %GTK_INPUT_PURPOSE_PIN to
* inform input methods about the purpose of this self,
* in addition to setting visibility to %FALSE.
*/
void
gtk_text_set_visibility (GtkText *self,
gboolean visible)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (GTK_IS_TEXT (self));
visible = visible != FALSE;
if (priv->visible != visible)
{
priv->visible = visible;
g_object_notify (G_OBJECT (self), "visibility");
gtk_text_update_cached_style_values (self);
gtk_text_recompute (self);
/* disable undo when invisible text is used */
gtk_text_history_set_enabled (priv->history, visible);
gtk_text_update_clipboard_actions (self);
}
}
/**
* gtk_text_get_visibility:
* @self: a #GtkText
*
* Retrieves whether the text in @self is visible.
* See gtk_text_set_visibility().
*
* Returns: %TRUE if the text is currently visible
**/
gboolean
gtk_text_get_visibility (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_val_if_fail (GTK_IS_TEXT (self), FALSE);
return priv->visible;
}
/**
* gtk_text_set_invisible_char:
* @self: a #GtkText
* @ch: a Unicode character
*
* Sets the character to use in place of the actual text when
* gtk_text_set_visibility() has been called to set text visibility
* to %FALSE. i.e. this is the character used in “password mode” to
* show the user how many characters have been typed.
*
* By default, GTK picks the best invisible char available in the
* current font. If you set the invisible char to 0, then the user
* will get no feedback at all; there will be no text on the screen
* as they type.
**/
void
gtk_text_set_invisible_char (GtkText *self,
gunichar ch)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (GTK_IS_TEXT (self));
if (!priv->invisible_char_set)
{
priv->invisible_char_set = TRUE;
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_INVISIBLE_CHAR_SET]);
}
if (ch == priv->invisible_char)
return;
priv->invisible_char = ch;
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_INVISIBLE_CHAR]);
gtk_text_recompute (self);
}
/**
* gtk_text_get_invisible_char:
* @self: a #GtkText
*
* Retrieves the character displayed in place of the real characters
* for entries with visibility set to false.
* See gtk_text_set_invisible_char().
*
* Returns: the current invisible char, or 0, if the self does not
* show invisible text at all.
**/
gunichar
gtk_text_get_invisible_char (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_val_if_fail (GTK_IS_TEXT (self), 0);
return priv->invisible_char;
}
/**
* gtk_text_unset_invisible_char:
* @self: a #GtkText
*
* Unsets the invisible char previously set with
* gtk_text_set_invisible_char(). So that the
* default invisible char is used again.
**/
void
gtk_text_unset_invisible_char (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
gunichar ch;
g_return_if_fail (GTK_IS_TEXT (self));
if (!priv->invisible_char_set)
return;
priv->invisible_char_set = FALSE;
ch = find_invisible_char (GTK_WIDGET (self));
if (priv->invisible_char != ch)
{
priv->invisible_char = ch;
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_INVISIBLE_CHAR]);
}
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_INVISIBLE_CHAR_SET]);
gtk_text_recompute (self);
}
/**
* gtk_text_set_overwrite_mode:
* @self: a #GtkText
* @overwrite: new value
*
* Sets whether the text is overwritten when typing in the #GtkText.
**/
void
gtk_text_set_overwrite_mode (GtkText *self,
gboolean overwrite)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (GTK_IS_TEXT (self));
if (priv->overwrite_mode == overwrite)
return;
gtk_text_toggle_overwrite (self);
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_OVERWRITE_MODE]);
}
/**
* gtk_text_get_overwrite_mode:
* @self: a #GtkText
*
* Gets the value set by gtk_text_set_overwrite_mode().
*
* Returns: whether the text is overwritten when typing.
**/
gboolean
gtk_text_get_overwrite_mode (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_val_if_fail (GTK_IS_TEXT (self), FALSE);
return priv->overwrite_mode;
}
/**
* gtk_text_set_max_length:
* @self: a #GtkText
* @length: the maximum length of the self, or 0 for no maximum.
* (other than the maximum length of entries.) The value passed in will
* be clamped to the range 0-65536.
*
* Sets the maximum allowed length of the contents of the widget.
*
* If the current contents are longer than the given length, then
* they will be truncated to fit.
*
* This is equivalent to getting @self's #GtkEntryBuffer and
* calling gtk_entry_buffer_set_max_length() on it.
* ]|
**/
void
gtk_text_set_max_length (GtkText *self,
int length)
{
g_return_if_fail (GTK_IS_TEXT (self));
gtk_entry_buffer_set_max_length (get_buffer (self), length);
}
/**
* gtk_text_get_max_length:
* @self: a #GtkText
*
* Retrieves the maximum allowed length of the text in
* @self. See gtk_text_set_max_length().
*
* This is equivalent to getting @self's #GtkEntryBuffer and
* calling gtk_entry_buffer_get_max_length() on it.
*
* Returns: the maximum allowed number of characters
* in #GtkText, or 0 if there is no maximum.
**/
int
gtk_text_get_max_length (GtkText *self)
{
g_return_val_if_fail (GTK_IS_TEXT (self), 0);
return gtk_entry_buffer_get_max_length (get_buffer (self));
}
/**
* gtk_text_get_text_length:
* @self: a #GtkText
*
* Retrieves the current length of the text in
* @self.
*
* This is equivalent to getting @self's #GtkEntryBuffer and
* calling gtk_entry_buffer_get_length() on it.
*
* Returns: the current number of characters
* in #GtkText, or 0 if there are none.
**/
guint16
gtk_text_get_text_length (GtkText *self)
{
g_return_val_if_fail (GTK_IS_TEXT (self), 0);
return gtk_entry_buffer_get_length (get_buffer (self));
}
/**
* gtk_text_set_activates_default:
* @self: a #GtkText
* @activates: %TRUE to activate window’s default widget on Enter keypress
*
* If @activates is %TRUE, pressing Enter in the @self will activate the default
* widget for the window containing the self. This usually means that
* the dialog box containing the self will be closed, since the default
* widget is usually one of the dialog buttons.
**/
void
gtk_text_set_activates_default (GtkText *self,
gboolean activates)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (GTK_IS_TEXT (self));
activates = activates != FALSE;
if (priv->activates_default != activates)
{
priv->activates_default = activates;
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_ACTIVATES_DEFAULT]);
}
}
/**
* gtk_text_get_activates_default:
* @self: a #GtkText
*
* Retrieves the value set by gtk_text_set_activates_default().
*
* Returns: %TRUE if the self will activate the default widget
*/
gboolean
gtk_text_get_activates_default (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_val_if_fail (GTK_IS_TEXT (self), FALSE);
return priv->activates_default;
}
static void
gtk_text_set_width_chars (GtkText *self,
int n_chars)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->width_chars != n_chars)
{
priv->width_chars = n_chars;
g_object_notify (G_OBJECT (self), "width-chars");
gtk_widget_queue_resize (GTK_WIDGET (self));
}
}
static void
gtk_text_set_max_width_chars (GtkText *self,
int n_chars)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->max_width_chars != n_chars)
{
priv->max_width_chars = n_chars;
g_object_notify (G_OBJECT (self), "max-width-chars");
gtk_widget_queue_resize (GTK_WIDGET (self));
}
}
PangoLayout *
gtk_text_get_layout (GtkText *self)
{
PangoLayout *layout;
g_return_val_if_fail (GTK_IS_TEXT (self), NULL);
layout = gtk_text_ensure_layout (self, TRUE);
return layout;
}
void
gtk_text_get_layout_offsets (GtkText *self,
int *x,
int *y)
{
g_return_if_fail (GTK_IS_TEXT (self));
get_layout_position (self, x, y);
}
static void
gtk_text_set_alignment (GtkText *self,
float xalign)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (xalign < 0.0)
xalign = 0.0;
else if (xalign > 1.0)
xalign = 1.0;
if (xalign != priv->xalign)
{
priv->xalign = xalign;
gtk_text_recompute (self);
g_object_notify (G_OBJECT (self), "xalign");
}
}
static void
hide_selection_bubble (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->selection_bubble && gtk_widget_get_visible (priv->selection_bubble))
gtk_widget_hide (priv->selection_bubble);
}
static void
gtk_text_activate_clipboard_cut (GtkWidget *widget,
const char *action_name,
GVariant *parameter)
{
GtkText *self = GTK_TEXT (widget);
g_signal_emit_by_name (self, "cut-clipboard");
hide_selection_bubble (self);
}
static void
gtk_text_activate_clipboard_copy (GtkWidget *widget,
const char *action_name,
GVariant *parameter)
{
GtkText *self = GTK_TEXT (widget);
g_signal_emit_by_name (self, "copy-clipboard");
hide_selection_bubble (self);
}
static void
gtk_text_activate_clipboard_paste (GtkWidget *widget,
const char *action_name,
GVariant *parameter)
{
GtkText *self = GTK_TEXT (widget);
g_signal_emit_by_name (self, "paste-clipboard");
hide_selection_bubble (self);
}
static void
gtk_text_activate_selection_delete (GtkWidget *widget,
const char *action_name,
GVariant *parameter)
{
GtkText *self = GTK_TEXT (widget);
gtk_text_delete_cb (self);
hide_selection_bubble (self);
}
static void
gtk_text_activate_selection_select_all (GtkWidget *widget,
const char *action_name,
GVariant *parameter)
{
GtkText *self = GTK_TEXT (widget);
gtk_text_select_all (self);
}
static void
gtk_text_activate_misc_insert_emoji (GtkWidget *widget,
const char *action_name,
GVariant *parameter)
{
GtkText *self = GTK_TEXT (widget);
gtk_text_insert_emoji (self);
hide_selection_bubble (self);
}
static void
gtk_text_update_clipboard_actions (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
DisplayMode mode;
GdkClipboard *clipboard;
gboolean has_clipboard;
gboolean has_selection;
gboolean has_content;
gboolean visible;
clipboard = gtk_widget_get_clipboard (GTK_WIDGET (self));
mode = gtk_text_get_display_mode (self);
has_clipboard = gdk_content_formats_contain_gtype (gdk_clipboard_get_formats (clipboard), G_TYPE_STRING);
has_selection = priv->current_pos != priv->selection_bound;
has_content = priv->buffer && (gtk_entry_buffer_get_length (priv->buffer) > 0);
visible = mode == DISPLAY_NORMAL;
gtk_widget_action_set_enabled (GTK_WIDGET (self), "clipboard.cut",
visible && priv->editable && has_selection);
gtk_widget_action_set_enabled (GTK_WIDGET (self), "clipboard.copy",
visible && has_selection);
gtk_widget_action_set_enabled (GTK_WIDGET (self), "clipboard.paste",
priv->editable && has_clipboard);
gtk_widget_action_set_enabled (GTK_WIDGET (self), "selection.delete",
priv->editable && has_selection);
gtk_widget_action_set_enabled (GTK_WIDGET (self), "selection.select-all",
has_content);
}
static void
gtk_text_update_emoji_action (GtkText *self)
{
gtk_widget_action_set_enabled (GTK_WIDGET (self), "misc.insert-emoji",
(gtk_text_get_input_hints (self) & GTK_INPUT_HINT_NO_EMOJI) == 0);
}
static GMenuModel *
gtk_text_get_menu_model (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GMenu *menu, *section;
GMenuItem *item;
menu = g_menu_new ();
section = g_menu_new ();
item = g_menu_item_new (_("Cu_t"), "clipboard.cut");
g_menu_item_set_attribute (item, "touch-icon", "s", "edit-cut-symbolic");
g_menu_append_item (section, item);
g_object_unref (item);
item = g_menu_item_new (_("_Copy"), "clipboard.copy");
g_menu_item_set_attribute (item, "touch-icon", "s", "edit-copy-symbolic");
g_menu_append_item (section, item);
g_object_unref (item);
item = g_menu_item_new (_("_Paste"), "clipboard.paste");
g_menu_item_set_attribute (item, "touch-icon", "s", "edit-paste-symbolic");
g_menu_append_item (section, item);
g_object_unref (item);
item = g_menu_item_new (_("_Delete"), "selection.delete");
g_menu_item_set_attribute (item, "touch-icon", "s", "edit-delete-symbolic");
g_menu_append_item (section, item);
g_object_unref (item);
g_menu_append_section (menu, NULL, G_MENU_MODEL (section));
g_object_unref (section);
section = g_menu_new ();
item = g_menu_item_new (_("Select _All"), "selection.select-all");
g_menu_item_set_attribute (item, "touch-icon", "s", "edit-select-all-symbolic");
g_menu_append_item (section, item);
g_object_unref (item);
item = g_menu_item_new ( _("Insert _Emoji"), "misc.insert-emoji");
g_menu_item_set_attribute (item, "hidden-when", "s", "action-disabled");
g_menu_item_set_attribute (item, "touch-icon", "s", "face-smile-symbolic");
g_menu_append_item (section, item);
g_object_unref (item);
g_menu_append_section (menu, NULL, G_MENU_MODEL (section));
g_object_unref (section);
if (priv->extra_menu)
g_menu_append_section (menu, NULL, priv->extra_menu);
return G_MENU_MODEL (menu);
}
static gboolean
gtk_text_mnemonic_activate (GtkWidget *widget,
gboolean group_cycling)
{
gtk_widget_grab_focus (widget);
return GDK_EVENT_STOP;
}
static void
gtk_text_popup_menu (GtkWidget *widget,
const char *action_name,
GVariant *parameters)
{
gtk_text_do_popup (GTK_TEXT (widget), -1, -1);
}
static void
show_or_hide_handles (GtkWidget *popover,
GParamSpec *pspec,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
gboolean visible;
visible = gtk_widget_get_visible (popover);
priv->text_handles_enabled = !visible;
gtk_text_update_handles (self);
}
static void
append_bubble_item (GtkText *self,
GtkWidget *toolbar,
GMenuModel *model,
int index)
{
GtkActionMuxer *muxer;
GtkWidget *item, *image;
GVariant *att;
const char *icon_name;
const char *action_name;
GMenuModel *link;
link = g_menu_model_get_item_link (model, index, "section");
if (link)
{
int i;
for (i = 0; i < g_menu_model_get_n_items (link); i++)
append_bubble_item (self, toolbar, link, i);
g_object_unref (link);
return;
}
att = g_menu_model_get_item_attribute_value (model, index, "touch-icon", G_VARIANT_TYPE_STRING);
if (att == NULL)
return;
icon_name = g_variant_get_string (att, NULL);
g_variant_unref (att);
att = g_menu_model_get_item_attribute_value (model, index, "action", G_VARIANT_TYPE_STRING);
if (att == NULL)
return;
action_name = g_variant_get_string (att, NULL);
g_variant_unref (att);
muxer = _gtk_widget_get_action_muxer (GTK_WIDGET (self), FALSE);
if (!g_action_group_get_action_enabled (G_ACTION_GROUP (muxer), action_name))
return;
item = gtk_button_new ();
gtk_widget_set_focus_on_click (item, FALSE);
image = gtk_image_new_from_icon_name (icon_name);
gtk_widget_show (image);
gtk_button_set_child (GTK_BUTTON (item), image);
gtk_widget_add_css_class (item, "image-button");
gtk_actionable_set_action_name (GTK_ACTIONABLE (item), action_name);
gtk_widget_show (GTK_WIDGET (item));
gtk_box_append (GTK_BOX (toolbar), item);
}
static gboolean
gtk_text_selection_bubble_popup_show (gpointer user_data)
{
GtkText *self = user_data;
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
const int text_width = gtk_widget_get_width (GTK_WIDGET (self));
const int text_height = gtk_widget_get_height (GTK_WIDGET (self));
cairo_rectangle_int_t rect;
GtkAllocation allocation;
gboolean has_selection;
int start_x, end_x;
GtkWidget *box;
GtkWidget *toolbar;
GMenuModel *model;
int i;
gtk_text_update_clipboard_actions (self);
has_selection = priv->selection_bound != priv->current_pos;
if (!has_selection && !priv->editable)
{
priv->selection_bubble_timeout_id = 0;
return G_SOURCE_REMOVE;
}
g_clear_pointer (&priv->selection_bubble, gtk_widget_unparent);
priv->selection_bubble = gtk_popover_new ();
gtk_widget_set_parent (priv->selection_bubble, GTK_WIDGET (self));
gtk_widget_add_css_class (priv->selection_bubble, GTK_STYLE_CLASS_TOUCH_SELECTION);
gtk_popover_set_position (GTK_POPOVER (priv->selection_bubble), GTK_POS_BOTTOM);
gtk_popover_set_autohide (GTK_POPOVER (priv->selection_bubble), FALSE);
g_signal_connect (priv->selection_bubble, "notify::visible",
G_CALLBACK (show_or_hide_handles), self);
box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 5);
gtk_widget_set_margin_start (box, 10);
gtk_widget_set_margin_end (box, 10);
gtk_widget_set_margin_top (box, 10);
gtk_widget_set_margin_bottom (box, 10);
gtk_widget_show (box);
toolbar = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_widget_add_css_class (toolbar, "linked");
gtk_popover_set_child (GTK_POPOVER (priv->selection_bubble), box);
gtk_box_append (GTK_BOX (box), toolbar);
model = gtk_text_get_menu_model (self);
for (i = 0; i < g_menu_model_get_n_items (model); i++)
append_bubble_item (self, toolbar, model, i);
g_object_unref (model);
gtk_widget_get_allocation (GTK_WIDGET (self), &allocation);
gtk_text_get_cursor_locations (self, &start_x, NULL);
start_x -= priv->scroll_offset;
start_x = CLAMP (start_x, 0, text_width);
rect.y = - allocation.y;
rect.height = text_height;
if (has_selection)
{
end_x = gtk_text_get_selection_bound_location (self) - priv->scroll_offset;
end_x = CLAMP (end_x, 0, text_width);
rect.x = - allocation.x + MIN (start_x, end_x);
rect.width = ABS (end_x - start_x);
}
else
{
rect.x = - allocation.x + start_x;
rect.width = 0;
}
rect.x -= 5;
rect.y -= 5;
rect.width += 10;
rect.height += 10;
gtk_popover_set_pointing_to (GTK_POPOVER (priv->selection_bubble), &rect);
gtk_popover_popup (GTK_POPOVER (priv->selection_bubble));
priv->selection_bubble_timeout_id = 0;
return G_SOURCE_REMOVE;
}
static void
gtk_text_selection_bubble_popup_unset (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->selection_bubble)
gtk_widget_hide (priv->selection_bubble);
if (priv->selection_bubble_timeout_id)
{
g_source_remove (priv->selection_bubble_timeout_id);
priv->selection_bubble_timeout_id = 0;
}
}
static void
gtk_text_selection_bubble_popup_set (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->selection_bubble_timeout_id)
g_source_remove (priv->selection_bubble_timeout_id);
priv->selection_bubble_timeout_id =
g_timeout_add (50, gtk_text_selection_bubble_popup_show, self);
g_source_set_name_by_id (priv->selection_bubble_timeout_id, "[gtk] gtk_text_selection_bubble_popup_cb");
}
static void
gtk_text_drag_leave (GtkDropTarget *dest,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GtkWidget *widget = GTK_WIDGET (self);
priv->dnd_position = -1;
gtk_widget_queue_draw (widget);
}
static gboolean
gtk_text_drag_drop (GtkDropTarget *dest,
const GValue *value,
double x,
double y,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int drop_position;
int length;
const char *str;
if (!priv->editable)
return FALSE;
drop_position = gtk_text_find_position (self, x + priv->scroll_offset);
str = g_value_get_string (value);
if (priv->truncate_multiline)
length = truncate_multiline (str);
else
length = -1;
if (priv->selection_bound == priv->current_pos ||
drop_position < priv->selection_bound ||
drop_position > priv->current_pos)
{
gtk_text_insert_text (self, str, length, &drop_position);
}
else
{
int pos;
/* Replacing selection */
begin_change (self);
gtk_text_delete_selection (self);
pos = MIN (priv->selection_bound, priv->current_pos);
gtk_text_insert_text (self, str, length, &pos);
end_change (self);
}
return TRUE;
}
static gboolean
gtk_text_drag_accept (GtkDropTarget *dest,
GdkDrop *drop,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (!priv->editable)
return FALSE;
if ((gdk_drop_get_actions (drop) & gtk_drop_target_get_actions (dest)) == 0)
return FALSE;
return gdk_content_formats_match (gtk_drop_target_get_formats (dest), gdk_drop_get_formats (drop));
}
static GdkDragAction
gtk_text_drag_motion (GtkDropTarget *target,
double x,
double y,
GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
int new_position, old_position;
if (!priv->editable)
{
gtk_drop_target_reject (target);
return 0;
}
old_position = priv->dnd_position;
new_position = gtk_text_find_position (self, x + priv->scroll_offset);
if (priv->selection_bound == priv->current_pos ||
new_position < priv->selection_bound ||
new_position > priv->current_pos)
{
priv->dnd_position = new_position;
}
else
{
priv->dnd_position = -1;
}
if (priv->dnd_position != old_position)
gtk_widget_queue_draw (GTK_WIDGET (self));
if (priv->drag)
return GDK_ACTION_MOVE;
else
return GDK_ACTION_COPY;
}
/* We display the cursor when
*
* - the selection is empty, AND
* - the widget has focus
*/
#define CURSOR_ON_MULTIPLIER 2
#define CURSOR_OFF_MULTIPLIER 1
#define CURSOR_PEND_MULTIPLIER 3
#define CURSOR_DIVIDER 3
static gboolean
cursor_blinks (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (gtk_widget_has_focus (GTK_WIDGET (self)) &&
priv->editable &&
priv->selection_bound == priv->current_pos)
{
GtkSettings *settings;
gboolean blink;
settings = gtk_widget_get_settings (GTK_WIDGET (self));
g_object_get (settings, "gtk-cursor-blink", &blink, NULL);
return blink;
}
else
return FALSE;
}
static gboolean
get_middle_click_paste (GtkText *self)
{
GtkSettings *settings;
gboolean paste;
settings = gtk_widget_get_settings (GTK_WIDGET (self));
g_object_get (settings, "gtk-enable-primary-paste", &paste, NULL);
return paste;
}
static int
get_cursor_time (GtkText *self)
{
GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (self));
int time;
g_object_get (settings, "gtk-cursor-blink-time", &time, NULL);
return time;
}
static int
get_cursor_blink_timeout (GtkText *self)
{
GtkSettings *settings = gtk_widget_get_settings (GTK_WIDGET (self));
int timeout;
g_object_get (settings, "gtk-cursor-blink-timeout", &timeout, NULL);
return timeout;
}
typedef struct {
guint64 start;
guint64 end;
} BlinkData;
static gboolean blink_cb (GtkWidget *widget,
GdkFrameClock *clock,
gpointer user_data);
static void
add_blink_timeout (GtkText *self,
gboolean delay)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
BlinkData *data;
int blink_time;
priv->blink_start_time = g_get_monotonic_time ();
priv->cursor_alpha = 1.0;
blink_time = get_cursor_time (self);
data = g_new (BlinkData, 1);
data->start = priv->blink_start_time;
if (delay)
data->start += blink_time * 1000 / 2;
data->end = data->start + blink_time * 1000;
priv->blink_tick = gtk_widget_add_tick_callback (GTK_WIDGET (self),
blink_cb,
data,
g_free);
}
static void
remove_blink_timeout (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->blink_tick)
{
gtk_widget_remove_tick_callback (GTK_WIDGET (self), priv->blink_tick);
priv->blink_tick = 0;
}
}
/*
* Blink!
*/
static float
blink_alpha (float phase)
{
/* keep it simple, and split the blink cycle evenly
* into visible, fading out, invisible, fading in
*/
if (phase < 0.25)
return 1;
else if (phase < 0.5)
return 1 - 4 * (phase - 0.25);
else if (phase < 0.75)
return 0;
else
return 4 * (phase - 0.75);
}
static gboolean
blink_cb (GtkWidget *widget,
GdkFrameClock *clock,
gpointer user_data)
{
GtkText *self = GTK_TEXT (widget);
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
BlinkData *data = user_data;
int blink_timeout;
int blink_time;
guint64 now;
float phase;
float alpha;
if (!gtk_widget_has_focus (GTK_WIDGET (self)))
{
g_warning ("GtkText - did not receive a focus-out event.\n"
"If you handle this event, you must return\n"
"GDK_EVENT_PROPAGATE so the self gets the event as well");
gtk_text_check_cursor_blink (self);
return G_SOURCE_REMOVE;
}
g_assert (priv->selection_bound == priv->current_pos);
blink_timeout = get_cursor_blink_timeout (self);
blink_time = get_cursor_time (self);
now = g_get_monotonic_time ();
if (now > priv->blink_start_time + blink_timeout * 1000000)
{
/* we've blinked enough without the user doing anything, stop blinking */
priv->cursor_alpha = 1.0;
remove_blink_timeout (self);
gtk_widget_queue_draw (widget);
return G_SOURCE_REMOVE;
}
phase = (now - data->start) / (float) (data->end - data->start);
if (now >= data->end)
{
data->start = data->end;
data->end = data->start + blink_time * 1000;
}
alpha = blink_alpha (phase);
if (priv->cursor_alpha != alpha)
{
priv->cursor_alpha = alpha;
gtk_widget_queue_draw (widget);
}
return G_SOURCE_CONTINUE;
}
static void
gtk_text_check_cursor_blink (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (cursor_blinks (self))
{
if (!priv->blink_tick)
add_blink_timeout (self, FALSE);
}
else
{
if (priv->blink_tick)
remove_blink_timeout (self);
}
}
static void
gtk_text_pend_cursor_blink (GtkText *self)
{
if (cursor_blinks (self))
{
remove_blink_timeout (self);
add_blink_timeout (self, TRUE);
}
}
static void
gtk_text_reset_blink_time (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
priv->blink_start_time = g_get_monotonic_time ();
}
/**
* gtk_text_set_placeholder_text:
* @self: a #GtkText
* @text: (nullable): a string to be displayed when @self is empty and unfocused, or %NULL
*
* Sets text to be displayed in @self when it is empty.
*
* This can be used to give a visual hint of the expected
* contents of the self.
**/
void
gtk_text_set_placeholder_text (GtkText *self,
const char *text)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (GTK_IS_TEXT (self));
if (priv->placeholder == NULL)
{
priv->placeholder = g_object_new (GTK_TYPE_LABEL,
"label", text,
"css-name", "placeholder",
"xalign", 0.0f,
"ellipsize", PANGO_ELLIPSIZE_END,
NULL);
gtk_label_set_attributes (GTK_LABEL (priv->placeholder), priv->attrs);
gtk_widget_insert_after (priv->placeholder, GTK_WIDGET (self), NULL);
}
else
{
gtk_label_set_text (GTK_LABEL (priv->placeholder), text);
}
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_PLACEHOLDER_TEXT]);
}
/**
* gtk_text_get_placeholder_text:
* @self: a #GtkText
*
* Retrieves the text that will be displayed when @self is empty and unfocused
*
* Returns: (nullable) (transfer none):a pointer to the placeholder text as a string.
* This string points to internally allocated storage in the widget and must
* not be freed, modified or stored. If no placeholder text has been set,
* %NULL will be returned.
**/
const char *
gtk_text_get_placeholder_text (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_val_if_fail (GTK_IS_TEXT (self), NULL);
if (!priv->placeholder)
return NULL;
return gtk_label_get_text (GTK_LABEL (priv->placeholder));
}
/**
* gtk_text_set_input_purpose:
* @self: a #GtkText
* @purpose: the purpose
*
* Sets the #GtkText:input-purpose property which
* can be used by on-screen keyboards and other input
* methods to adjust their behaviour.
*/
void
gtk_text_set_input_purpose (GtkText *self,
GtkInputPurpose purpose)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (GTK_IS_TEXT (self));
if (gtk_text_get_input_purpose (self) != purpose)
{
g_object_set (G_OBJECT (priv->im_context),
"input-purpose", purpose,
NULL);
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_INPUT_PURPOSE]);
}
}
/**
* gtk_text_get_input_purpose:
* @self: a #GtkText
*
* Gets the value of the #GtkText:input-purpose property.
*/
GtkInputPurpose
gtk_text_get_input_purpose (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GtkInputPurpose purpose;
g_return_val_if_fail (GTK_IS_TEXT (self), GTK_INPUT_PURPOSE_FREE_FORM);
g_object_get (G_OBJECT (priv->im_context),
"input-purpose", &purpose,
NULL);
return purpose;
}
/**
* gtk_text_set_input_hints:
* @self: a #GtkText
* @hints: the hints
*
* Sets the #GtkText:input-hints property, which
* allows input methods to fine-tune their behaviour.
*/
void
gtk_text_set_input_hints (GtkText *self,
GtkInputHints hints)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (GTK_IS_TEXT (self));
if (gtk_text_get_input_hints (self) != hints)
{
g_object_set (G_OBJECT (priv->im_context),
"input-hints", hints,
NULL);
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_INPUT_HINTS]);
gtk_text_update_emoji_action (self);
}
}
/**
* gtk_text_get_input_hints:
* @self: a #GtkText
*
* Gets the value of the #GtkText:input-hints property.
*/
GtkInputHints
gtk_text_get_input_hints (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
GtkInputHints hints;
g_return_val_if_fail (GTK_IS_TEXT (self), GTK_INPUT_HINT_NONE);
g_object_get (G_OBJECT (priv->im_context),
"input-hints", &hints,
NULL);
return hints;
}
/**
* gtk_text_set_attributes:
* @self: a #GtkText
* @attrs: (nullable): a #PangoAttrList or %NULL to unset
*
* Sets a #PangoAttrList; the attributes in the list are applied to the
* text.
*/
void
gtk_text_set_attributes (GtkText *self,
PangoAttrList *attrs)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (GTK_IS_TEXT (self));
if (attrs)
pango_attr_list_ref (attrs);
if (priv->attrs)
pango_attr_list_unref (priv->attrs);
priv->attrs = attrs;
if (priv->placeholder)
gtk_label_set_attributes (GTK_LABEL (priv->placeholder), attrs);
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_ATTRIBUTES]);
gtk_text_recompute (self);
gtk_widget_queue_resize (GTK_WIDGET (self));
}
/**
* gtk_text_get_attributes:
* @self: a #GtkText
*
* Gets the attribute list that was set on the self using
* gtk_text_set_attributes(), if any.
*
* Returns: (transfer none) (nullable): the attribute list, or %NULL
* if none was set.
*/
PangoAttrList *
gtk_text_get_attributes (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_val_if_fail (GTK_IS_TEXT (self), NULL);
return priv->attrs;
}
/**
* gtk_text_set_tabs:
* @self: a #GtkText
* @tabs: (nullable): a #PangoTabArray
*
* Sets a #PangoTabArray; the tabstops in the array are applied to the self
* text.
*/
void
gtk_text_set_tabs (GtkText *self,
PangoTabArray *tabs)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (GTK_IS_TEXT (self));
if (priv->tabs)
pango_tab_array_free(priv->tabs);
if (tabs)
priv->tabs = pango_tab_array_copy (tabs);
else
priv->tabs = NULL;
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_TABS]);
gtk_text_recompute (self);
gtk_widget_queue_resize (GTK_WIDGET (self));
}
/**
* gtk_text_get_tabs:
* @self: a #GtkText
*
* Gets the tabstops that were set on the self using gtk_text_set_tabs(), if
* any.
*
* Returns: (nullable) (transfer none): the tabstops, or %NULL if none was set.
*/
PangoTabArray *
gtk_text_get_tabs (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_val_if_fail (GTK_IS_TEXT (self), NULL);
return priv->tabs;
}
static void
emoji_picked (GtkEmojiChooser *chooser,
const char *text,
GtkText *self)
{
int pos;
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
begin_change (self);
if (priv->selection_bound != priv->current_pos)
gtk_text_delete_selection (self);
pos = priv->current_pos;
gtk_text_insert_text (self, text, -1, &pos);
gtk_text_set_selection_bounds (self, pos, pos);
end_change (self);
}
static void
gtk_text_insert_emoji (GtkText *self)
{
GtkWidget *chooser;
if (gtk_widget_get_ancestor (GTK_WIDGET (self), GTK_TYPE_EMOJI_CHOOSER) != NULL)
return;
chooser = GTK_WIDGET (g_object_get_data (G_OBJECT (self), "gtk-emoji-chooser"));
if (!chooser)
{
chooser = gtk_emoji_chooser_new ();
g_object_set_data (G_OBJECT (self), "gtk-emoji-chooser", chooser);
gtk_widget_set_parent (chooser, GTK_WIDGET (self));
g_signal_connect (chooser, "emoji-picked", G_CALLBACK (emoji_picked), self);
}
gtk_popover_popup (GTK_POPOVER (chooser));
}
static void
set_enable_emoji_completion (GtkText *self,
gboolean value)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
if (priv->enable_emoji_completion == value)
return;
priv->enable_emoji_completion = value;
if (priv->enable_emoji_completion)
priv->emoji_completion = gtk_emoji_completion_new (self);
else
g_clear_pointer (&priv->emoji_completion, gtk_widget_unparent);
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_ENABLE_EMOJI_COMPLETION]);
}
static void
set_text_cursor (GtkWidget *widget)
{
gtk_widget_set_cursor_from_name (widget, "text");
}
GtkEventController *
gtk_text_get_key_controller (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
return priv->key_controller;
}
/**
* gtk_text_set_extra_menu:
* @self: a #GtkText
* @model: (allow-none): a #GMenuModel
*
* Sets a menu model to add when constructing
* the context menu for @self.
*/
void
gtk_text_set_extra_menu (GtkText *self,
GMenuModel *model)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_if_fail (GTK_IS_TEXT (self));
if (g_set_object (&priv->extra_menu, model))
{
g_clear_pointer (&priv->popup_menu, gtk_widget_unparent);
g_object_notify_by_pspec (G_OBJECT (self), text_props[PROP_EXTRA_MENU]);
}
}
/**
* gtk_text_get_extra_menu:
* @self: a #GtkText
*
* Gets the menu model set with gtk_text_set_extra_menu().
*
* Returns: (transfer none): (nullable): the menu model
*/
GMenuModel *
gtk_text_get_extra_menu (GtkText *self)
{
GtkTextPrivate *priv = gtk_text_get_instance_private (self);
g_return_val_if_fail (GTK_IS_TEXT (self), NULL);
return priv->extra_menu;
}
static void
gtk_text_real_undo (GtkWidget *widget,
const char *action_name,
GVariant *parameters)
{
GtkText *text = GTK_TEXT (widget);
GtkTextPrivate *priv = gtk_text_get_instance_private (text);
gtk_text_history_undo (priv->history);
}
static void
gtk_text_real_redo (GtkWidget *widget,
const char *action_name,
GVariant *parameters)
{
GtkText *text = GTK_TEXT (widget);
GtkTextPrivate *priv = gtk_text_get_instance_private (text);
gtk_text_history_redo (priv->history);
}
static void
gtk_text_history_change_state_cb (gpointer funcs_data,
gboolean is_modified,
gboolean can_undo,
gboolean can_redo)
{
/* Do nothing */
}
static void
gtk_text_history_insert_cb (gpointer funcs_data,
guint begin,
guint end,
const char *str,
guint len)
{
GtkText *text = funcs_data;
int location = begin;
gtk_editable_insert_text (GTK_EDITABLE (text), str, len, &location);
}
static void
gtk_text_history_delete_cb (gpointer funcs_data,
guint begin,
guint end,
const char *expected_text,
guint len)
{
GtkText *text = funcs_data;
gtk_editable_delete_text (GTK_EDITABLE (text), begin, end);
}
static void
gtk_text_history_select_cb (gpointer funcs_data,
int selection_insert,
int selection_bound)
{
GtkText *text = funcs_data;
gtk_editable_select_region (GTK_EDITABLE (text),
selection_insert,
selection_bound);
}
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