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Merge branch 'wip/chergert/textundo' into 'master'

Browse Source 
Add undo/redo support for GtkTextView, GtkText, and GtkEntry

See merge request GNOME/gtk!1158
This commit is contained in:
Benjamin Otte 2019-11-05 18:52:25 +00:00
commit accbfc0083
26 changed files with 2846 additions and 30 deletions
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2
demos/gtk-demo/demo.gresource.xml
View File

@ -169,6 +169,7 @@
<file>editable_cells.c</file>
<file>entry_buffer.c</file>
<file>entry_completion.c</file>
<file>entry_undo.c</file>
<file>expander.c</file>
<file>filtermodel.c</file>
<file>fishbowl.c</file>
@ -220,6 +221,7 @@
<file>spinner.c</file>
<file>tabs.c</file>
<file>tagged_entry.c</file>
<file>textundo.c</file>
<file>textview.c</file>
<file>textscroll.c</file>
<file>theming_style_classes.c</file>

52
demos/gtk-demo/entry_undo.c Normal file
View File

@ -0,0 +1,52 @@
/* Entry/Entry Undo
*
* GtkEntry can provide basic Undo/Redo support using standard keyboard
* accelerators such as Primary+z to undo and Primary+Shift+z to redo.
* Additionally, Primary+y can be used to redo.
*
* Use gtk_entry_set_enable_undo() to enable undo/redo support.
*/
#include <glib/gi18n.h>
#include <gtk/gtk.h>
GtkWidget *
do_entry_undo (GtkWidget *do_widget)
{
static GtkWidget *window = NULL;
GtkWidget *vbox;
GtkWidget *label;
GtkWidget *entry;
if (!window)
{
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_display (GTK_WINDOW (window),
gtk_widget_get_display (do_widget));
gtk_window_set_title (GTK_WINDOW (window), "Entry Undo");
gtk_window_set_resizable (GTK_WINDOW (window), FALSE);
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed), &window);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 5);
g_object_set (vbox, "margin", 5, NULL);
gtk_container_add (GTK_CONTAINER (window), vbox);
label = gtk_label_new (NULL);
gtk_label_set_markup (GTK_LABEL (label),
"Use Primary+z or Primary+Shift+z to undo or redo changes");
gtk_container_add (GTK_CONTAINER (vbox), label);
/* Create our entry */
entry = gtk_entry_new ();
gtk_editable_set_enable_undo (GTK_EDITABLE (entry), TRUE);
gtk_container_add (GTK_CONTAINER (vbox), entry);
}
if (!gtk_widget_get_visible (window))
gtk_widget_show (window);
else
gtk_widget_destroy (window);
return window;
}

3
demos/gtk-demo/hypertext.c
View File

@ -41,6 +41,7 @@ show_page (GtkTextBuffer *buffer,
gtk_text_buffer_set_text (buffer, "", 0);
gtk_text_buffer_get_iter_at_offset (buffer, &iter, 0);
gtk_text_buffer_begin_irreversible_action (buffer);
if (page == 1)
{
gtk_text_buffer_insert (buffer, &iter, "Some text to show that simple ", -1);
@ -73,6 +74,7 @@ show_page (GtkTextBuffer *buffer,
"so that related items of information are connected.\n", -1);
insert_link (buffer, &iter, "Go back", 1);
}
gtk_text_buffer_end_irreversible_action (buffer);
}
/* Looks at all tags covering the position of iter in the text view,
@ -258,6 +260,7 @@ do_hypertext (GtkWidget *do_widget)
gtk_widget_add_controller (view, controller);
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
gtk_text_buffer_set_enable_undo (buffer, TRUE);
sw = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),

5
demos/gtk-demo/main.c
View File

@ -748,6 +748,9 @@ load_file (const gchar *demoname,
source_buffer = gtk_text_buffer_new (NULL);
gtk_text_buffer_begin_irreversible_action (info_buffer);
gtk_text_buffer_begin_irreversible_action (source_buffer);
resource_filename = g_strconcat ("/sources/", filename, NULL);
bytes = g_resources_lookup_data (resource_filename, 0, &err);
g_free (resource_filename);
@ -880,9 +883,11 @@ load_file (const gchar *demoname,
fontify (source_buffer);
gtk_text_buffer_end_irreversible_action (source_buffer);
gtk_text_view_set_buffer (GTK_TEXT_VIEW (source_view), source_buffer);
g_object_unref (source_buffer);
gtk_text_buffer_end_irreversible_action (info_buffer);
gtk_text_view_set_buffer (GTK_TEXT_VIEW (info_view), info_buffer);
g_object_unref (info_buffer);
}

6
demos/gtk-demo/markup.c
View File

@ -29,8 +29,10 @@ source_toggled (GtkToggleButton *button)
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
gtk_text_buffer_get_bounds (buffer, &start, &end);
gtk_text_buffer_begin_irreversible_action (buffer);
gtk_text_buffer_delete (buffer, &start, &end);
gtk_text_buffer_insert_markup (buffer, &start, markup, -1);
gtk_text_buffer_end_irreversible_action (buffer);
g_free (markup);
gtk_stack_set_visible_child_name (GTK_STACK (stack), "formatted");
@ -106,11 +108,15 @@ do_markup (GtkWidget *do_widget)
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
gtk_text_buffer_get_start_iter (buffer, &iter);
gtk_text_buffer_begin_irreversible_action (buffer);
gtk_text_buffer_insert_markup (buffer, &iter, markup, -1);
gtk_text_buffer_end_irreversible_action (buffer);
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view2));
gtk_text_buffer_get_start_iter (buffer, &iter);
gtk_text_buffer_begin_irreversible_action (buffer);
gtk_text_buffer_insert (buffer, &iter, markup, -1);
gtk_text_buffer_end_irreversible_action (buffer);
g_bytes_unref (bytes);

2
demos/gtk-demo/meson.build
View File

@ -24,6 +24,7 @@ demos = files([
'editable_cells.c',
'entry_buffer.c',
'entry_completion.c',
'entry_undo.c',
'expander.c',
'filtermodel.c',
'fishbowl.c',
@ -73,6 +74,7 @@ demos = files([
'tabs.c',
'tagged_entry.c',
'textmask.c',
'textundo.c',
'textview.c',
'textscroll.c',
'themes.c',

71
demos/gtk-demo/textundo.c Normal file
View File

@ -0,0 +1,71 @@
/* Text View/Undo and Redo
*
* The GtkTextView supports undo and redo through the use of a
* GtkTextBuffer. You can enable or disable undo support using
* gtk_text_buffer_set_enable_undo().
*
* Use Primary+Z to undo and Primary+Shift+Z or Primary+Y to
* redo previously undone operations.
*/
#include <gtk/gtk.h>
#include <stdlib.h> /* for exit() */
GtkWidget *
do_textundo (GtkWidget *do_widget)
{
static GtkWidget *window = NULL;
if (!window)
{
GtkWidget *view;
GtkWidget *sw;
GtkTextBuffer *buffer;
GtkTextIter iter;
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_display (GTK_WINDOW (window),
gtk_widget_get_display (do_widget));
gtk_window_set_default_size (GTK_WINDOW (window),
450, 450);
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed), &window);
gtk_window_set_title (GTK_WINDOW (window), "TextView Undo");
view = gtk_text_view_new ();
gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (view), GTK_WRAP_WORD);
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
gtk_text_buffer_set_enable_undo (buffer, TRUE);
/* this text cannot be undone */
gtk_text_buffer_begin_irreversible_action (buffer);
gtk_text_buffer_get_start_iter (buffer, &iter);
gtk_text_buffer_insert (buffer, &iter,
"Type to add more text.\n"
"Use Primary+Z to undo and Primary+Shift+Z to redo a previously undone action.\n"
"\n",
-1);
gtk_text_buffer_end_irreversible_action (buffer);
sw = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
GTK_POLICY_AUTOMATIC,
GTK_POLICY_AUTOMATIC);
gtk_container_add (GTK_CONTAINER (window), sw);
gtk_container_add (GTK_CONTAINER (sw), view);
}
if (!gtk_widget_get_visible (window))
{
gtk_widget_show (window);
}
else
{
gtk_widget_destroy (window);
window = NULL;
}
return window;
}

3
demos/gtk-demo/textview.c
View File

@ -144,6 +144,7 @@ insert_text (GtkTextBuffer *buffer)
*/
gtk_text_buffer_get_iter_at_offset (buffer, &iter, 0);
gtk_text_buffer_begin_irreversible_action (buffer);
gtk_text_buffer_insert (buffer, &iter,
"The text widget can display text with all kinds of nifty attributes. "
"It also supports multiple views of the same buffer; this demo is "
@ -377,6 +378,8 @@ insert_text (GtkTextBuffer *buffer)
gtk_text_buffer_get_bounds (buffer, &start, &end);
gtk_text_buffer_apply_tag_by_name (buffer, "word_wrap", &start, &end);
gtk_text_buffer_end_irreversible_action (buffer);
g_object_unref (texture);
}

14
docs/reference/gtk/gtk4-sections.txt
View File

@ -882,6 +882,8 @@ gtk_editable_get_width_chars
gtk_editable_set_width_chars
gtk_editable_get_max_width_chars
gtk_editable_set_max_width_chars
gtk_editable_get_enable_undo
gtk_editable_set_enable_undo
<SUBSECTION>
gtk_editable_install_properties
gtk_editable_init_delegate
@ -2876,6 +2878,18 @@ gtk_text_buffer_begin_user_action
gtk_text_buffer_end_user_action
gtk_text_buffer_add_selection_clipboard
gtk_text_buffer_remove_selection_clipboard
gtk_text_buffer_get_can_undo
gtk_text_buffer_get_can_redo
gtk_text_buffer_get_enable_undo
gtk_text_buffer_set_enable_undo
gtk_text_buffer_get_max_undo_levels
gtk_text_buffer_set_max_undo_levels
gtk_text_buffer_undo
gtk_text_buffer_redo
gtk_text_buffer_begin_irreversible_action
gtk_text_buffer_end_irreversible_action
gtk_text_buffer_begin_user_action
gtk_text_buffer_end_user_action
<SUBSECTION Standard>
GTK_TEXT_BUFFER

15
docs/reference/gtk/migrating-3to4.xml
View File

@ -813,6 +813,21 @@
</para>
</section>
<section>
<title>GtkEntryBuffer ::deleted-text has changed</title>
<para>
To allow signal handlers to access the deleted text before it
has been deleted #GtkEntryBuffer::deleted-text has changed from
%G_SIGNAL_RUN_FIRST to %G_SIGNAL_RUN_LAST. The default handler
removes the text from the #GtkEntryBuffer.
</para>
<para>
To adapt existing code, use g_signal_connect_after() or
%G_CONNECT_AFTER when using g_signal_connect_data() or
g_signal_connect_object().
</para>
</section>
</section>
</chapter>

10
docs/reference/gtk/text_widget.sgml
View File

@ -112,6 +112,16 @@ multiple bytes in UTF-8, and the two-character sequence "\r\n" is also
considered a line separator.
</para>
<para>
Text buffers support undo and redo if gtk_text_buffer_set_undo_enabled()
has been set to %TRUE. Use gtk_text_buffer_undo() or gtk_text_buffer_redo()
to perform the necessary action. Note that these operations are ignored if
the buffer is not editable. Developers may want some operations to not be
undoable. To do this, wrap your changes in
gtk_text_buffer_begin_irreversible_action() and
gtk_text_buffer_end_irreversible_action().
</para>
</refsect1>

56
gtk/gtkeditable.c
View File

@ -379,6 +379,13 @@ gtk_editable_default_init (GtkEditableInterface *iface)
0,
GTK_PARAM_READABLE));
g_object_interface_install_property (iface,
g_param_spec_boolean ("enable-undo",
P_("Enable Undo"),
P_("If undo/redo should be enabled for the editable"),
TRUE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
g_object_interface_install_property (iface,
g_param_spec_int ("selection-bound",
P_("Selection Bound"),
@ -835,6 +842,46 @@ gtk_editable_set_max_width_chars (GtkEditable *editable,
g_object_set (editable, "max-width-chars", n_chars, NULL);
}
/**
* gtk_editable_get_enable_undo:
* @editable: a #GtkEditable
*
* Gets if undo/redo actions are enabled for @editable
*
* Returns: %TRUE if undo is enabled
*/
gboolean
gtk_editable_get_enable_undo (GtkEditable *editable)
{
gboolean enable_undo;
g_return_val_if_fail (GTK_IS_EDITABLE (editable), 0);
g_object_get (editable, "enable-undo", &enable_undo, NULL);
return enable_undo;
}
/**
* gtk_editable_set_enable_undo:
* @editable: a #GtkEditable
* @enable_undo: if undo/redo should be enabled
*
* If enabled, changes to @editable will be saved for undo/redo actions.
*
* This results in an additional copy of text changes and are not stored in
* secure memory. As such, undo is forcefully disabled when #GtkText:visibility
* is set to %FALSE.
*/
void
gtk_editable_set_enable_undo (GtkEditable *editable,
gboolean enable_undo)
{
g_return_if_fail (GTK_IS_EDITABLE (editable));
g_object_set (editable, "enable-undo", enable_undo, NULL);
}
/**
* gtk_editable_install_properties:
* @object_class: a #GObjectClass
@ -869,6 +916,7 @@ gtk_editable_install_properties (GObjectClass *object_class,
g_object_class_override_property (object_class, first_prop + GTK_EDITABLE_PROP_WIDTH_CHARS, "width-chars");
g_object_class_override_property (object_class, first_prop + GTK_EDITABLE_PROP_MAX_WIDTH_CHARS, "max-width-chars");
g_object_class_override_property (object_class, first_prop + GTK_EDITABLE_PROP_XALIGN, "xalign");
g_object_class_override_property (object_class, first_prop + GTK_EDITABLE_PROP_ENABLE_UNDO, "enable-undo");
return GTK_EDITABLE_NUM_PROPERTIES;
}
@ -982,6 +1030,10 @@ gtk_editable_delegate_set_property (GObject *object,
gtk_editable_set_alignment (delegate, g_value_get_float (value));
break;
case GTK_EDITABLE_PROP_ENABLE_UNDO:
gtk_editable_set_enable_undo (delegate, g_value_get_boolean (value));
break;
default:
return FALSE;
}
@ -1054,6 +1106,10 @@ gtk_editable_delegate_get_property (GObject *object,
g_value_set_float (value, gtk_editable_get_alignment (delegate));
break;
case GTK_EDITABLE_PROP_ENABLE_UNDO:
g_value_set_boolean (value, gtk_editable_get_enable_undo (delegate));
break;
default:
return FALSE;
}

6
gtk/gtkeditable.h
View File

@ -138,6 +138,11 @@ int gtk_editable_get_max_width_chars (GtkEditable *editable);
GDK_AVAILABLE_IN_ALL
void gtk_editable_set_max_width_chars (GtkEditable *editable,
int n_chars);
GDK_AVAILABLE_IN_ALL
gboolean gtk_editable_get_enable_undo (GtkEditable *editable);
GDK_AVAILABLE_IN_ALL
void gtk_editable_set_enable_undo (GtkEditable *editable,
gboolean enable_undo);
/* api for implementations */
@ -149,6 +154,7 @@ typedef enum {
GTK_EDITABLE_PROP_WIDTH_CHARS,
GTK_EDITABLE_PROP_MAX_WIDTH_CHARS,
GTK_EDITABLE_PROP_XALIGN,
GTK_EDITABLE_PROP_ENABLE_UNDO,
GTK_EDITABLE_NUM_PROPERTIES
} GtkEditableProperties;

42
gtk/gtkentrybuffer.c
View File

@ -192,7 +192,6 @@ gtk_entry_buffer_normal_delete_text (GtkEntryBuffer *buffer,
guint n_chars)
{
GtkEntryBufferPrivate *pv = gtk_entry_buffer_get_instance_private (buffer);
gsize start, end;
if (position > pv->normal_text_chars)
position = pv->normal_text_chars;
@ -200,23 +199,7 @@ gtk_entry_buffer_normal_delete_text (GtkEntryBuffer *buffer,
n_chars = pv->normal_text_chars - position;
if (n_chars > 0)
{
start = g_utf8_offset_to_pointer (pv->normal_text, position) - pv->normal_text;
end = g_utf8_offset_to_pointer (pv->normal_text, position + n_chars) - pv->normal_text;
memmove (pv->normal_text + start, pv->normal_text + end, pv->normal_text_bytes + 1 - end);
pv->normal_text_chars -= n_chars;
pv->normal_text_bytes -= (end - start);
/*
* Could be a password, make sure we don't leave anything sensitive after
* the terminating zero. Note, that the terminating zero already trashed
* one byte.
*/
trash_area (pv->normal_text + pv->normal_text_bytes + 1, end - start - 1);
gtk_entry_buffer_emit_deleted_text (buffer, position, n_chars);
}
gtk_entry_buffer_emit_deleted_text (buffer, position, n_chars);
return n_chars;
}
@ -240,6 +223,23 @@ gtk_entry_buffer_real_deleted_text (GtkEntryBuffer *buffer,
guint position,
guint n_chars)
{
GtkEntryBufferPrivate *pv = gtk_entry_buffer_get_instance_private (buffer);
gsize start, end;
start = g_utf8_offset_to_pointer (pv->normal_text, position) - pv->normal_text;
end = g_utf8_offset_to_pointer (pv->normal_text, position + n_chars) - pv->normal_text;
memmove (pv->normal_text + start, pv->normal_text + end, pv->normal_text_bytes + 1 - end);
pv->normal_text_chars -= n_chars;
pv->normal_text_bytes -= (end - start);
/*
* Could be a password, make sure we don't leave anything sensitive after
* the terminating zero. Note, that the terminating zero already trashed
* one byte.
*/
trash_area (pv->normal_text + pv->normal_text_bytes + 1, end - start - 1);
g_object_notify_by_pspec (G_OBJECT (buffer), entry_buffer_props[PROP_TEXT]);
g_object_notify_by_pspec (G_OBJECT (buffer), entry_buffer_props[PROP_LENGTH]);
}
@ -405,11 +405,13 @@ gtk_entry_buffer_class_init (GtkEntryBufferClass *klass)
* @position: the position the text was deleted at.
* @n_chars: The number of characters that were deleted.
*
* This signal is emitted after text is deleted from the buffer.
* The text is altered in the default handler for this signal. If you want
* access to the text after the text has been modified, use
* %G_CONNECT_AFTER.
*/
signals[DELETED_TEXT] = g_signal_new (I_("deleted-text"),
GTK_TYPE_ENTRY_BUFFER,
G_SIGNAL_RUN_FIRST,
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkEntryBufferClass, deleted_text),
NULL, NULL,
_gtk_marshal_VOID__UINT_UINT,

171
gtk/gtkistringprivate.h Normal file
View File

@ -0,0 +1,171 @@
#ifndef __GTK_ISTRING_PRIVATE_H__
#define __GTK_ISTRING_PRIVATE_H__
#include <glib.h>
#include <string.h>
typedef struct
{
guint n_bytes;
guint n_chars;
union {
char buf[24];
char *str;
} u;
} IString;
static inline gboolean
istring_is_inline (const IString *str)
{
return str->n_bytes <= (sizeof str->u.buf - 1);
}
static inline char *
istring_str (IString *str)
{
if (istring_is_inline (str))
return str->u.buf;
else
return str->u.str;
}
static inline void
istring_clear (IString *str)
{
if (istring_is_inline (str))
str->u.buf[0] = 0;
else
g_clear_pointer (&str->u.str, g_free);
str->n_bytes = 0;
str->n_chars = 0;
}
static inline void
istring_set (IString *str,
const char *text,
guint n_bytes,
guint n_chars)
{
if G_LIKELY (n_bytes <= (sizeof str->u.buf - 1))
{
memcpy (str->u.buf, text, n_bytes);
str->u.buf[n_bytes] = 0;
}
else
{
str->u.str = g_strndup (text, n_bytes);
}
str->n_bytes = n_bytes;
str->n_chars = n_chars;
}
static inline gboolean
istring_empty (IString *str)
{
return str->n_bytes == 0;
}
static inline gboolean
istring_ends_with_space (IString *str)
{
return g_ascii_isspace (istring_str (str)[str->n_bytes - 1]);
}
static inline gboolean
istring_starts_with_space (IString *str)
{
return g_unichar_isspace (g_utf8_get_char (istring_str (str)));
}
static inline gboolean
istring_contains_unichar (IString *str,
gunichar ch)
{
return g_utf8_strchr (istring_str (str), str->n_bytes, ch) != NULL;
}
static inline gboolean
istring_only_contains_space (IString *str)
{
const char *iter;
for (iter = istring_str (str); *iter; iter = g_utf8_next_char (iter))
{
if (!g_unichar_isspace (g_utf8_get_char (iter)))
return FALSE;
}
return TRUE;
}
static inline gboolean
istring_contains_space (IString *str)
{
const char *iter;
for (iter = istring_str (str); *iter; iter = g_utf8_next_char (iter))
{
if (g_unichar_isspace (g_utf8_get_char (iter)))
return TRUE;
}
return FALSE;
}
static inline void
istring_prepend (IString *str,
IString *other)
{
if G_LIKELY (str->n_bytes + other->n_bytes < sizeof str->u.buf - 1)
{
memmove (str->u.buf + other->n_bytes, str->u.buf, str->n_bytes);
memcpy (str->u.buf, other->u.buf, other->n_bytes);
str->n_bytes += other->n_bytes;
str->n_chars += other->n_chars;
str->u.buf[str->n_bytes] = 0;
}
else
{
gchar *old = NULL;
if (!istring_is_inline (str))
old = str->u.str;
str->u.str = g_strconcat (istring_str (str), istring_str (other), NULL);
str->n_bytes += other->n_bytes;
str->n_chars += other->n_chars;
g_free (old);
}
}
static inline void
istring_append (IString *str,
IString *other)
{
const gchar *text = istring_str (other);
guint n_bytes = other->n_bytes;
guint n_chars = other->n_chars;
if G_LIKELY (istring_is_inline (str))
{
if G_LIKELY (str->n_bytes + n_bytes <= (sizeof str->u.buf - 1))
memcpy (str->u.buf + str->n_bytes, text, n_bytes);
else
str->u.str = g_strconcat (str->u.buf, text, NULL);
}
else
{
str->u.str = g_realloc (str->u.str, str->n_bytes + n_bytes + 1);
memcpy (str->u.str + str->n_bytes, text, n_bytes);
}
str->n_bytes += n_bytes;
str->n_chars += n_chars;
istring_str (str)[str->n_bytes] = 0;
}
#endif /* __GTK_ISTRING_PRIVATE_H__ */

171
gtk/gtktext.c
View File

@ -58,6 +58,7 @@
#include "gtksnapshot.h"
#include "gtkstylecontextprivate.h"
#include "gtktexthandleprivate.h"
#include "gtktexthistoryprivate.h"
#include "gtktextutil.h"
#include "gtktooltip.h"
#include "gtktreeselection.h"
@ -135,6 +136,8 @@
#define UNDERSHOOT_SIZE 20
#define DEFAULT_MAX_UNDO 200
static GQuark quark_password_hint = 0;
typedef struct _GtkTextPasswordHint GtkTextPasswordHint;
@ -175,6 +178,8 @@ struct _GtkTextPrivate
GtkWidget *popup_menu;
GMenuModel *extra_menu;
GtkTextHistory *history;
float xalign;
int ascent; /* font ascent in pango units */
@ -559,6 +564,29 @@ static void gtk_text_activate_selection_select_all (GtkWidget *widget,
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
*/
@ -645,6 +673,13 @@ 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))
@ -1173,6 +1208,9 @@ gtk_text_class_init (GtkTextClass *class)
NULL,
G_TYPE_NONE, 0);
gtk_widget_class_install_action (widget_class, "text.undo", NULL, gtk_text_real_undo);
gtk_widget_class_install_action (widget_class, "text.redo", NULL, gtk_text_real_redo);
/*
* Key bindings
*/
@ -1346,6 +1384,14 @@ gtk_text_class_init (GtkTextClass *class)
gtk_binding_entry_add_signal (binding_set, GDK_KEY_semicolon, GDK_CONTROL_MASK,
"insert-emoji", 0);
/* Undo/Redo */
gtk_binding_entry_add_action (binding_set, GDK_KEY_z, GDK_CONTROL_MASK,
"text.undo", NULL);
gtk_binding_entry_add_action (binding_set, GDK_KEY_y, GDK_CONTROL_MASK,
"text.redo", NULL);
gtk_binding_entry_add_action (binding_set, 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"));
@ -1447,6 +1493,14 @@ gtk_text_set_property (GObject *object,
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));
@ -1578,6 +1632,10 @@ gtk_text_get_property (GObject *object,
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));
@ -1678,6 +1736,9 @@ gtk_text_init (GtkText *self)
priv->xalign = 0.0;
priv->insert_pos = -1;
priv->cursor_alpha = 1.0;
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;
@ -1812,6 +1873,7 @@ gtk_text_finalize (GObject *object)
g_clear_object (&priv->selection_content);
g_clear_object (&priv->history);
g_clear_object (&priv->cached_layout);
g_clear_object (&priv->im_context);
g_clear_pointer (&priv->magnifier_popover, gtk_widget_destroy);
@ -3344,6 +3406,8 @@ buffer_inserted_text (GtkEntryBuffer *buffer,
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)
{
@ -3381,6 +3445,35 @@ buffer_deleted_text (GtkEntryBuffer *buffer,
{
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;
@ -3435,6 +3528,7 @@ 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);
}
@ -3444,6 +3538,7 @@ 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);
}
@ -5236,6 +5331,7 @@ 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));
@ -5247,6 +5343,8 @@ gtk_text_set_text (GtkText *self,
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);
@ -5254,6 +5352,8 @@ gtk_text_set_text (GtkText *self,
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);
}
/**
@ -5293,6 +5393,9 @@ gtk_text_set_visibility (GtkText *self,
g_object_notify (G_OBJECT (self), "visibility");
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);
}
}
@ -6815,3 +6918,71 @@ gtk_text_get_extra_menu (GtkText *self)
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);
}

426
gtk/gtktextbuffer.c
View File

@ -30,6 +30,7 @@
#include "gtkdnd.h"
#include "gtkmarshalers.h"
#include "gtktextbuffer.h"
#include "gtktexthistoryprivate.h"
#include "gtktextbufferprivate.h"
#include "gtktextbtree.h"
#include "gtktextiterprivate.h"
@ -38,6 +39,8 @@
#include "gtkprivate.h"
#include "gtkintl.h"
#define DEFAULT_MAX_UNDO 200
/**
* SECTION:gtktextbuffer
* @Short_description: Stores attributed text for display in a GtkTextView
@ -62,11 +65,15 @@ struct _GtkTextBufferPrivate
GtkTextLogAttrCache *log_attr_cache;
GtkTextHistory *history;
guint user_action_count;
/* Whether the buffer has been modified since last save */
guint modified : 1;
guint has_selection : 1;
guint can_undo : 1;
guint can_redo : 1;
};
typedef struct _ClipboardRequest ClipboardRequest;
@ -93,6 +100,8 @@ enum {
BEGIN_USER_ACTION,
END_USER_ACTION,
PASTE_DONE,
UNDO,
REDO,
LAST_SIGNAL
};
@ -108,6 +117,9 @@ enum {
PROP_CURSOR_POSITION,
PROP_COPY_TARGET_LIST,
PROP_PASTE_TARGET_LIST,
PROP_CAN_UNDO,
PROP_CAN_REDO,
PROP_ENABLE_UNDO,
LAST_PROP
};
@ -138,6 +150,8 @@ static void gtk_text_buffer_real_changed (GtkTextBuffer *buffe
static void gtk_text_buffer_real_mark_set (GtkTextBuffer *buffer,
const GtkTextIter *iter,
GtkTextMark *mark);
static void gtk_text_buffer_real_undo (GtkTextBuffer *buffer);
static void gtk_text_buffer_real_redo (GtkTextBuffer *buffer);
static GtkTextBTree* get_btree (GtkTextBuffer *buffer);
static void free_log_attr_cache (GtkTextLogAttrCache *cache);
@ -154,6 +168,24 @@ static void gtk_text_buffer_get_property (GObject *object,
GValue *value,
GParamSpec *pspec);
static void gtk_text_buffer_history_change_state (gpointer funcs_data,
gboolean is_modified,
gboolean can_undo,
gboolean can_redo);
static void gtk_text_buffer_history_insert (gpointer funcs_data,
guint begin,
guint end,
const char *text,
guint len);
static void gtk_text_buffer_history_delete (gpointer funcs_data,
guint begin,
guint end,
const char *expected_text,
guint len);
static void gtk_text_buffer_history_select (gpointer funcs_data,
int selection_insert,
int selection_bound);
static guint signals[LAST_SIGNAL] = { 0 };
static GParamSpec *text_buffer_props[LAST_PROP];
@ -185,6 +217,13 @@ GType gtk_text_buffer_content_get_type (void) G_GNUC_CONST;
G_DEFINE_TYPE (GtkTextBufferContent, gtk_text_buffer_content, GDK_TYPE_CONTENT_PROVIDER)
static GtkTextHistoryFuncs history_funcs = {
gtk_text_buffer_history_change_state,
gtk_text_buffer_history_insert,
gtk_text_buffer_history_delete,
gtk_text_buffer_history_select,
};
static GdkContentFormats *
gtk_text_buffer_content_ref_formats (GdkContentProvider *provider)
{
@ -403,6 +442,8 @@ gtk_text_buffer_class_init (GtkTextBufferClass *klass)
klass->remove_tag = gtk_text_buffer_real_remove_tag;
klass->changed = gtk_text_buffer_real_changed;
klass->mark_set = gtk_text_buffer_real_mark_set;
klass->undo = gtk_text_buffer_real_undo;
klass->redo = gtk_text_buffer_real_redo;
/* Construct */
text_buffer_props[PROP_TAG_TABLE] =
@ -439,6 +480,45 @@ gtk_text_buffer_class_init (GtkTextBufferClass *klass)
FALSE,
GTK_PARAM_READABLE);
/**
* GtkTextBuffer:can-undo:
*
* The :can-undo property denotes that the buffer can undo the last
* applied action.
*/
text_buffer_props[PROP_CAN_UNDO] =
g_param_spec_boolean ("can-undo",
P_("Can Undo"),
P_("If the buffer can have the last action undone"),
FALSE,
GTK_PARAM_READABLE);
/**
* GtkTextBuffer:can-redo:
*
* The :can-redo property denotes that the buffer can reapply the
* last undone action.
*/
text_buffer_props[PROP_CAN_REDO] =
g_param_spec_boolean ("can-redo",
P_("Can Redo"),
P_("If the buffer can have the last undone action reapplied"),
FALSE,
GTK_PARAM_READABLE);
/**
* GtkTextBuffer:enable-undo:
*
* The :enable-undo property denotes if support for undoing and redoing
* changes to the buffer is allowed.
*/
text_buffer_props[PROP_ENABLE_UNDO] =
g_param_spec_boolean ("enable-undo",
"Enable Undo",
"Enable support for undo and redo in the text view",
TRUE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkTextBuffer:cursor-position:
*
@ -840,6 +920,34 @@ gtk_text_buffer_class_init (GtkTextBufferClass *klass)
1,
GDK_TYPE_CLIPBOARD);
/**
* GtkTextBuffer::redo:
* @buffer: a #GtkTextBuffer
*
* The "redo" signal is emitted when a request has been made to redo the
* previously undone operation.
*/
signals[REDO] =
g_signal_new (I_("redo"),
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkTextBufferClass, redo),
NULL, NULL, NULL, G_TYPE_NONE, 0);
/**
* GtkTextBuffer::undo:
* @buffer: a #GtkTextBuffer
*
* The "undo" signal is emitted when a request has been made to undo the
* previous operation or set of operations that have been grouped together.
*/
signals[UNDO] =
g_signal_new (I_("undo"),
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkTextBufferClass, undo),
NULL, NULL, NULL, G_TYPE_NONE, 0);
gtk_text_buffer_register_serializers ();
}
@ -848,6 +956,9 @@ gtk_text_buffer_init (GtkTextBuffer *buffer)
{
buffer->priv = gtk_text_buffer_get_instance_private (buffer);
buffer->priv->tag_table = NULL;
buffer->priv->history = gtk_text_history_new (&history_funcs, buffer);
gtk_text_history_set_max_undo_levels (buffer->priv->history, DEFAULT_MAX_UNDO);
}
static void
@ -891,6 +1002,10 @@ gtk_text_buffer_set_property (GObject *object,
switch (prop_id)
{
case PROP_ENABLE_UNDO:
gtk_text_buffer_set_enable_undo (text_buffer, g_value_get_boolean (value));
break;
case PROP_TAG_TABLE:
set_table (text_buffer, g_value_get_object (value));
break;
@ -919,6 +1034,10 @@ gtk_text_buffer_get_property (GObject *object,
switch (prop_id)
{
case PROP_ENABLE_UNDO:
g_value_set_boolean (value, gtk_text_buffer_get_enable_undo (text_buffer));
break;
case PROP_TAG_TABLE:
g_value_set_object (value, get_table (text_buffer));
break;
@ -946,6 +1065,14 @@ gtk_text_buffer_get_property (GObject *object,
g_value_set_int (value, gtk_text_iter_get_offset (&iter));
break;
case PROP_CAN_UNDO:
g_value_set_boolean (value, gtk_text_buffer_get_can_undo (text_buffer));
break;
case PROP_CAN_REDO:
g_value_set_boolean (value, gtk_text_buffer_get_can_redo (text_buffer));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -981,6 +1108,8 @@ gtk_text_buffer_finalize (GObject *object)
remove_all_selection_clipboards (buffer);
g_clear_object (&buffer->priv->history);
if (priv->tag_table)
{
_gtk_text_tag_table_remove_buffer (priv->tag_table, buffer);
@ -1058,6 +1187,8 @@ gtk_text_buffer_set_text (GtkTextBuffer *buffer,
if (len < 0)
len = strlen (text);
gtk_text_history_begin_irreversible_action (buffer->priv->history);
gtk_text_buffer_get_bounds (buffer, &start, &end);
gtk_text_buffer_delete (buffer, &start, &end);
@ -1067,6 +1198,8 @@ gtk_text_buffer_set_text (GtkTextBuffer *buffer,
gtk_text_buffer_get_iter_at_offset (buffer, &start, 0);
gtk_text_buffer_insert (buffer, &start, text, len);
}
gtk_text_history_end_irreversible_action (buffer->priv->history);
}
@ -1084,6 +1217,11 @@ gtk_text_buffer_real_insert_text (GtkTextBuffer *buffer,
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
g_return_if_fail (iter != NULL);
gtk_text_history_text_inserted (buffer->priv->history,
gtk_text_iter_get_offset (iter),
text,
len);
_gtk_text_btree_insert (iter, text, len);
g_signal_emit (buffer, signals[CHANGED], 0);
@ -1798,6 +1936,28 @@ gtk_text_buffer_real_delete_range (GtkTextBuffer *buffer,
g_return_if_fail (start != NULL);
g_return_if_fail (end != NULL);
if (gtk_text_history_get_enabled (buffer->priv->history))
{
GtkTextIter sel_begin, sel_end;
gchar *text;
if (gtk_text_buffer_get_selection_bounds (buffer, &sel_begin, &sel_end))
gtk_text_history_selection_changed (buffer->priv->history,
gtk_text_iter_get_offset (&sel_begin),
gtk_text_iter_get_offset (&sel_end));
else
gtk_text_history_selection_changed (buffer->priv->history,
gtk_text_iter_get_offset (&sel_begin),
-1);
text = gtk_text_iter_get_slice (start, end);
gtk_text_history_text_deleted (buffer->priv->history,
gtk_text_iter_get_offset (start),
gtk_text_iter_get_offset (end),
text, -1);
g_free (text);
}
_gtk_text_btree_delete (start, end);
/* may have deleted the selection... */
@ -3274,17 +3434,14 @@ void
gtk_text_buffer_set_modified (GtkTextBuffer *buffer,
gboolean setting)
{
gboolean fixed_setting;
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
fixed_setting = setting != FALSE;
setting = !!setting;
if (buffer->priv->modified == fixed_setting)
return;
else
if (buffer->priv->modified != setting)
{
buffer->priv->modified = fixed_setting;
buffer->priv->modified = setting;
gtk_text_history_modified_changed (buffer->priv->history, setting);
g_signal_emit (buffer, signals[MODIFIED_CHANGED], 0);
}
}
@ -4723,3 +4880,258 @@ gtk_text_buffer_insert_markup (GtkTextBuffer *buffer,
pango_attr_list_unref (attributes);
g_free (text);
}
static void
gtk_text_buffer_real_undo (GtkTextBuffer *buffer)
{
if (gtk_text_history_get_can_undo (buffer->priv->history))
gtk_text_history_undo (buffer->priv->history);
}
static void
gtk_text_buffer_real_redo (GtkTextBuffer *buffer)
{
if (gtk_text_history_get_can_redo (buffer->priv->history))
gtk_text_history_redo (buffer->priv->history);
}
gboolean
gtk_text_buffer_get_can_undo (GtkTextBuffer *buffer)
{
g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
return gtk_text_history_get_can_undo (buffer->priv->history);
}
gboolean
gtk_text_buffer_get_can_redo (GtkTextBuffer *buffer)
{
g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
return gtk_text_history_get_can_redo (buffer->priv->history);
}
static void
gtk_text_buffer_history_change_state (gpointer funcs_data,
gboolean is_modified,
gboolean can_undo,
gboolean can_redo)
{
GtkTextBuffer *buffer = funcs_data;
if (buffer->priv->can_undo != can_undo)
{
buffer->priv->can_undo = can_undo;
g_object_notify_by_pspec (G_OBJECT (buffer), text_buffer_props[PROP_CAN_UNDO]);
}
if (buffer->priv->can_redo != can_redo)
{
buffer->priv->can_redo = can_redo;
g_object_notify_by_pspec (G_OBJECT (buffer), text_buffer_props[PROP_CAN_REDO]);
}
if (buffer->priv->modified != is_modified)
gtk_text_buffer_set_modified (buffer, is_modified);
}
static void
gtk_text_buffer_history_insert (gpointer funcs_data,
guint begin,
guint end,
const char *text,
guint len)
{
GtkTextBuffer *buffer = funcs_data;
GtkTextIter iter;
gtk_text_buffer_get_iter_at_offset (buffer, &iter, begin);
gtk_text_buffer_insert (buffer, &iter, text, len);
}
static void
gtk_text_buffer_history_delete (gpointer funcs_data,
guint begin,
guint end,
const char *expected_text,
guint len)
{
GtkTextBuffer *buffer = funcs_data;
GtkTextIter iter;
GtkTextIter end_iter;
gtk_text_buffer_get_iter_at_offset (buffer, &iter, begin);
gtk_text_buffer_get_iter_at_offset (buffer, &end_iter, end);
gtk_text_buffer_delete (buffer, &iter, &end_iter);
}
static void
gtk_text_buffer_history_select (gpointer funcs_data,
int selection_insert,
int selection_bound)
{
GtkTextBuffer *buffer = funcs_data;
GtkTextIter insert;
GtkTextIter bound;
if (selection_insert == -1 || selection_bound == -1)
return;
gtk_text_buffer_get_iter_at_offset (buffer, &insert, selection_insert);
gtk_text_buffer_get_iter_at_offset (buffer, &bound, selection_bound);
gtk_text_buffer_select_range (buffer, &insert, &bound);
}
/**
* gtk_text_buffer_undo:
* @buffer: a #GtkTextBuffer
*
* Undoes the last undoable action on the buffer, if there is one.
*/
void
gtk_text_buffer_undo (GtkTextBuffer *buffer)
{
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
if (gtk_text_buffer_get_can_undo (buffer))
g_signal_emit (buffer, signals[UNDO], 0);
}
/**
* gtk_text_buffer_redo:
* @buffer: a #GtkTextBuffer
*
* Redoes the next redoable action on the buffer, if there is one.
*/
void
gtk_text_buffer_redo (GtkTextBuffer *buffer)
{
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
if (gtk_text_buffer_get_can_redo (buffer))
g_signal_emit (buffer, signals[REDO], 0);
}
/**
* gtk_text_buffer_get_enable_undo:
* @buffer: a #GtkTextBuffer
*
* Gets whether the buffer is saving modifications to the buffer to allow for
* undo and redo actions.
*
* See gtk_text_buffer_begin_irreversible_action() and
* gtk_text_buffer_end_irreversible_action() to create changes to the buffer
* that cannot be undone.
*/
gboolean
gtk_text_buffer_get_enable_undo (GtkTextBuffer *buffer)
{
g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), FALSE);
return gtk_text_history_get_enabled (buffer->priv->history);
}
/**
* gtk_text_buffer_set_enable_undo:
* @buffer: a #GtkTextBuffer
*
* Sets whether or not to enable undoable actions in the text buffer. If
* enabled, the user will be able to undo the last number of actions up to
* gtk_text_buffer_get_max_undo_levels().
*
* See gtk_text_buffer_begin_irreversible_action() and
* gtk_text_buffer_end_irreversible_action() to create changes to the buffer
* that cannot be undone.
*/
void
gtk_text_buffer_set_enable_undo (GtkTextBuffer *buffer,
gboolean enabled)
{
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
if (enabled != gtk_text_history_get_enabled (buffer->priv->history))
{
gtk_text_history_set_enabled (buffer->priv->history, enabled);
g_object_notify_by_pspec (G_OBJECT (buffer),
text_buffer_props[PROP_ENABLE_UNDO]);
}
}
/**
* gtk_text_buffer_begin_irreversible_action:
* @self: a #Gtktextbuffer
*
* Denotes the beginning of an action that may not be undone. This will cause
* any previous operations in the undo/redo queue to be cleared.
*
* This should be paired with a call to
* gtk_text_buffer_end_irreversible_action() after the irreversible action
* has completed.
*
* You may nest calls to gtk_text_buffer_begin_irreversible_action() and
* gtk_text_buffer_end_irreversible_action() pairs.
*/
void
gtk_text_buffer_begin_irreversible_action (GtkTextBuffer *buffer)
{
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
gtk_text_history_begin_irreversible_action (buffer->priv->history);
}
/**
* gtk_text_buffer_end_irreversible_action:
* @self: a #Gtktextbuffer
*
* Denotes the end of an action that may not be undone. This will cause
* any previous operations in the undo/redo queue to be cleared.
*
* This should be called after completing modifications to the text buffer
* after gtk_text_buffer_begin_irreversible_action() was called.
*
* You may nest calls to gtk_text_buffer_begin_irreversible_action() and
* gtk_text_buffer_end_irreversible_action() pairs.
*/
void
gtk_text_buffer_end_irreversible_action (GtkTextBuffer *buffer)
{
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
gtk_text_history_end_irreversible_action (buffer->priv->history);
}
/**
* gtk_text_buffer_get_max_undo_levels:
* @buffer: a #GtkTextBuffer
*
* Gets the maximum number of undo levels to perform. If 0, unlimited undo
* actions may be performed. Note that this may have a memory usage impact
* as it requires storing an additional copy of the inserted or removed text
* within the text buffer.
*/
guint
gtk_text_buffer_get_max_undo_levels (GtkTextBuffer *buffer)
{
g_return_val_if_fail (GTK_IS_TEXT_BUFFER (buffer), 0);
return gtk_text_history_get_max_undo_levels (buffer->priv->history);
}
/**
* gtk_text_buffer_set_max_undo_levels:
* @buffer: a #GtkTextBuffer
* @max_undo_levels: the maximum number of undo actions to perform
*
* Sets the maximum number of undo levels to perform. If 0, unlimited undo
* actions may be performed. Note that this may have a memory usage impact
* as it requires storing an additional copy of the inserted or removed text
* within the text buffer.
*/
void
gtk_text_buffer_set_max_undo_levels (GtkTextBuffer *buffer,
guint max_undo_levels)
{
g_return_if_fail (GTK_IS_TEXT_BUFFER (buffer));
gtk_text_history_set_max_undo_levels (buffer->priv->history, max_undo_levels);
}

29
gtk/gtktextbuffer.h
View File

@ -146,6 +146,8 @@ struct _GtkTextBufferClass
void (* paste_done) (GtkTextBuffer *buffer,
GdkClipboard *clipboard);
void (* undo) (GtkTextBuffer *buffer);
void (* redo) (GtkTextBuffer *buffer);
/*< private >*/
@ -451,11 +453,32 @@ gboolean gtk_text_buffer_delete_selection (GtkTextBuffer *buffer,
gboolean interactive,
gboolean default_editable);
/* Called to specify atomic user actions, used to implement undo */
GDK_AVAILABLE_IN_ALL
void gtk_text_buffer_begin_user_action (GtkTextBuffer *buffer);
gboolean gtk_text_buffer_get_can_undo (GtkTextBuffer *buffer);
GDK_AVAILABLE_IN_ALL
void gtk_text_buffer_end_user_action (GtkTextBuffer *buffer);
gboolean gtk_text_buffer_get_can_redo (GtkTextBuffer *buffer);
GDK_AVAILABLE_IN_ALL
gboolean gtk_text_buffer_get_enable_undo (GtkTextBuffer *buffer);
GDK_AVAILABLE_IN_ALL
void gtk_text_buffer_set_enable_undo (GtkTextBuffer *buffer,
gboolean enable_undo);
GDK_AVAILABLE_IN_ALL
guint gtk_text_buffer_get_max_undo_levels (GtkTextBuffer *buffer);
GDK_AVAILABLE_IN_ALL
void gtk_text_buffer_set_max_undo_levels (GtkTextBuffer *buffer,
guint max_undo_levels);
GDK_AVAILABLE_IN_ALL
void gtk_text_buffer_undo (GtkTextBuffer *buffer);
GDK_AVAILABLE_IN_ALL
void gtk_text_buffer_redo (GtkTextBuffer *buffer);
GDK_AVAILABLE_IN_ALL
void gtk_text_buffer_begin_irreversible_action (GtkTextBuffer *buffer);
GDK_AVAILABLE_IN_ALL
void gtk_text_buffer_end_irreversible_action (GtkTextBuffer *buffer);
GDK_AVAILABLE_IN_ALL
void gtk_text_buffer_begin_user_action (GtkTextBuffer *buffer);
GDK_AVAILABLE_IN_ALL
void gtk_text_buffer_end_user_action (GtkTextBuffer *buffer);
G_END_DECLS

1062
gtk/gtktexthistory.c Normal file
View File

File diff suppressed because it is too large Load Diff

84
gtk/gtktexthistoryprivate.h Normal file
View File

@ -0,0 +1,84 @@
/* Copyright (C) 2019 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/>.
*/
#ifndef __GTK_TEXT_HISTORY_PRIVATE_H__
#define __GTK_TEXT_HISTORY_PRIVATE_H__
#include <glib-object.h>
G_BEGIN_DECLS
#define GTK_TYPE_TEXT_HISTORY (gtk_text_history_get_type())
typedef struct _GtkTextHistoryFuncs GtkTextHistoryFuncs;
G_DECLARE_FINAL_TYPE (GtkTextHistory, gtk_text_history, GTK, TEXT_HISTORY, GObject)
struct _GtkTextHistoryFuncs
{
void (*change_state) (gpointer funcs_data,
gboolean is_modified,
gboolean can_undo,
gboolean can_redo);
void (*insert) (gpointer funcs_data,
guint begin,
guint end,
const char *text,
guint len);
void (*delete) (gpointer funcs_data,
guint begin,
guint end,
const char *expected_text,
guint len);
void (*select) (gpointer funcs_data,
int selection_insert,
int selection_bound);
};
GtkTextHistory *gtk_text_history_new (const GtkTextHistoryFuncs *funcs,
gpointer funcs_data);
void gtk_text_history_begin_user_action (GtkTextHistory *self);
void gtk_text_history_end_user_action (GtkTextHistory *self);
void gtk_text_history_begin_irreversible_action (GtkTextHistory *self);
void gtk_text_history_end_irreversible_action (GtkTextHistory *self);
gboolean gtk_text_history_get_can_undo (GtkTextHistory *self);
gboolean gtk_text_history_get_can_redo (GtkTextHistory *self);
void gtk_text_history_undo (GtkTextHistory *self);
void gtk_text_history_redo (GtkTextHistory *self);
guint gtk_text_history_get_max_undo_levels (GtkTextHistory *self);
void gtk_text_history_set_max_undo_levels (GtkTextHistory *self,
guint max_undo_levels);
void gtk_text_history_modified_changed (GtkTextHistory *self,
gboolean modified);
void gtk_text_history_selection_changed (GtkTextHistory *self,
int selection_insert,
int selection_bound);
void gtk_text_history_text_inserted (GtkTextHistory *self,
guint position,
const char *text,
int len);
void gtk_text_history_text_deleted (GtkTextHistory *self,
guint begin,
guint end,
const char *text,
int len);
gboolean gtk_text_history_get_enabled (GtkTextHistory *self);
void gtk_text_history_set_enabled (GtkTextHistory *self,
gboolean enabled);
G_END_DECLS
#endif /* __GTK_TEXT_HISTORY_PRIVATE_H__ */

2
gtk/gtktextprivate.h
View File

@ -85,6 +85,8 @@ struct _GtkTextClass
void (* paste_clipboard) (GtkText *self);
void (* toggle_overwrite) (GtkText *self);
void (* insert_emoji) (GtkText *self);
void (* undo) (GtkText *self);
void (* redo) (GtkText *self);
};
char * gtk_text_get_display_text (GtkText *entry,

40
gtk/gtktextview.c
View File

@ -619,6 +619,13 @@ static void gtk_text_view_activate_misc_insert_emoji (GtkWidget *widget,
const char *action_name,
GVariant *parameter);
static void gtk_text_view_real_undo (GtkWidget *widget,
const gchar *action_name,
GVariant *parameter);
static void gtk_text_view_real_redo (GtkWidget *widget,
const gchar *action_name,
GVariant *parameter);
/* FIXME probably need the focus methods. */
@ -1358,6 +1365,9 @@ gtk_text_view_class_init (GtkTextViewClass *klass)
NULL,
G_TYPE_NONE, 0);
gtk_widget_class_install_action (widget_class, "text.undo", NULL, gtk_text_view_real_undo);
gtk_widget_class_install_action (widget_class, "text.redo", NULL, gtk_text_view_real_redo);
/*
* Key bindings
*/
@ -1550,6 +1560,14 @@ gtk_text_view_class_init (GtkTextViewClass *klass)
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Insert, GDK_SHIFT_MASK,
"paste-clipboard", 0);
/* Undo/Redo */
gtk_binding_entry_add_action (binding_set, GDK_KEY_z, GDK_CONTROL_MASK,
"text.undo", NULL);
gtk_binding_entry_add_action (binding_set, GDK_KEY_y, GDK_CONTROL_MASK,
"text.redo", NULL);
gtk_binding_entry_add_action (binding_set, GDK_KEY_z, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"text.redo", NULL);
/* Overwrite */
gtk_binding_entry_add_signal (binding_set, GDK_KEY_Insert, 0,
"toggle-overwrite", 0);
@ -9835,3 +9853,25 @@ gtk_text_view_get_extra_menu (GtkTextView *text_view)
return priv->extra_menu;
}
static void
gtk_text_view_real_undo (GtkWidget *widget,
const gchar *action_name,
GVariant *parameters)
{
GtkTextView *text_view = GTK_TEXT_VIEW (widget);
if (gtk_text_view_get_editable (text_view))
gtk_text_buffer_undo (text_view->priv->buffer);
}
static void
gtk_text_view_real_redo (GtkWidget *widget,
const gchar *action_name,
GVariant *parameters)
{
GtkTextView *text_view = GTK_TEXT_VIEW (widget);
if (gtk_text_view_get_editable (text_view))
gtk_text_buffer_redo (text_view->priv->buffer);
}

1
gtk/meson.build
View File

@ -145,6 +145,7 @@ gtk_private_sources = files([
'gtkstylecascade.c',
'gtkstyleproperty.c',
'gtktextbtree.c',
'gtktexthistory.c',
'gtktextviewchild.c',
'gtktrashmonitor.c',
'gtktreedatalist.c',

1
tests/meson.build
View File

@ -126,6 +126,7 @@ gtk_tests = [
['testblur'],
['testtexture'],
['testwindowdrag'],
['testtexthistory', ['../gtk/gtktexthistory.c']],
]
if os_unix

600
tests/testtexthistory.c Normal file
View File

@ -0,0 +1,600 @@
#include "gtktexthistoryprivate.h"
#if 0
# define DEBUG_COMMANDS
#endif
typedef struct
{
GtkTextHistory *history;
GString *buf;
struct {
int insert;
int bound;
} selection;
guint can_redo : 1;
guint can_undo : 1;
guint is_modified : 1;
} Text;
enum {
IGNORE = 0,
SET = 1,
UNSET = 2,
};
enum {
IGNORE_SELECT = 0,
DO_SELECT = 1,
};
enum {
INSERT = 1,
INSERT_SEQ,
BACKSPACE,
DELETE_KEY,
UNDO,
REDO,
BEGIN_IRREVERSIBLE,
END_IRREVERSIBLE,
BEGIN_USER,
END_USER,
MODIFIED,
UNMODIFIED,
SELECT,
CHECK_SELECT,
SET_MAX_UNDO,
};
typedef struct
{
int kind;
int location;
int end_location;
const char *text;
const char *expected;
int can_undo;
int can_redo;
int is_modified;
int select;
} Command;
static void
do_change_state (gpointer funcs_data,
gboolean is_modified,
gboolean can_undo,
gboolean can_redo)
{
Text *text = funcs_data;
text->is_modified = is_modified;
text->can_undo = can_undo;
text->can_redo = can_redo;
}
static void
do_insert (gpointer funcs_data,
guint begin,
guint end,
const char *text,
guint len)
{
Text *t = funcs_data;
#ifdef DEBUG_COMMANDS
g_printerr ("Insert Into '%s' (begin=%u end=%u text=%s)\n",
t->buf->str, begin, end, text);
#endif
g_string_insert_len (t->buf, begin, text, len);
}
static void
do_delete (gpointer funcs_data,
guint begin,
guint end,
const gchar *expected_text,
guint len)
{
Text *t = funcs_data;
#ifdef DEBUG_COMMANDS
g_printerr ("Delete(begin=%u end=%u expected_text=%s)\n", begin, end, expected_text);
#endif
if (end < begin)
{
guint tmp = end;
end = begin;
begin = tmp;
}
g_assert_cmpint (memcmp (t->buf->str + begin, expected_text, len), ==, 0);
if (end >= t->buf->len)
{
t->buf->len = begin;
t->buf->str[begin] = 0;
return;
}
memmove (t->buf->str + begin,
t->buf->str + end,
t->buf->len - end);
g_string_truncate (t->buf, t->buf->len - (end - begin));
}
static void
do_select (gpointer funcs_data,
gint selection_insert,
gint selection_bound)
{
Text *text = funcs_data;
text->selection.insert = selection_insert;
text->selection.bound = selection_bound;
}
static GtkTextHistoryFuncs funcs = {
do_change_state,
do_insert,
do_delete,
do_select,
};
static Text *
text_new (void)
{
Text *text = g_slice_new0 (Text);
text->history = gtk_text_history_new (&funcs, text);
text->buf = g_string_new (NULL);
text->selection.insert = -1;
text->selection.bound = -1;
return text;
}
static void
text_free (Text *text)
{
g_object_unref (text->history);
g_string_free (text->buf, TRUE);
g_slice_free (Text, text);
}
static void
command_insert (const Command *cmd,
Text *text)
{
do_insert (text,
cmd->location,
cmd->location + g_utf8_strlen (cmd->text, -1),
cmd->text,
strlen (cmd->text));
gtk_text_history_text_inserted (text->history, cmd->location, cmd->text, -1);
}
static void
command_delete_key (const Command *cmd,
Text *text)
{
do_delete (text,
cmd->location,
cmd->end_location,
cmd->text,
strlen (cmd->text));
gtk_text_history_text_deleted (text->history,
cmd->location,
cmd->end_location,
cmd->text,
ABS (cmd->end_location - cmd->location));
}
static void
command_undo (const Command *cmd,
Text *text)
{
gtk_text_history_undo (text->history);
}
static void
command_redo (const Command *cmd,
Text *text)
{
gtk_text_history_redo (text->history);
}
static void
set_selection (Text *text,
int begin,
int end)
{
gtk_text_history_selection_changed (text->history, begin, end);
}
static void
run_test (const Command *commands,
guint n_commands,
guint max_undo)
{
Text *text = text_new ();
if (max_undo)
gtk_text_history_set_max_undo_levels (text->history, max_undo);
for (guint i = 0; i < n_commands; i++)
{
const Command *cmd = &commands[i];
#ifdef DEBUG_COMMANDS
g_printerr ("%d: %d\n", i, cmd->kind);
#endif
switch (cmd->kind)
{
case INSERT:
command_insert (cmd, text);
break;
case INSERT_SEQ:
for (guint j = 0; cmd->text[j]; j++)
{
const char seqtext[2] = { cmd->text[j], 0 };
Command seq = { INSERT, cmd->location + j, 1, seqtext, NULL };
command_insert (&seq, text);
}
break;
case DELETE_KEY:
if (cmd->select == DO_SELECT)
set_selection (text, cmd->location, cmd->end_location);
else if (strlen (cmd->text) == 1)
set_selection (text, cmd->location, -1);
else
set_selection (text, -1, -1);
command_delete_key (cmd, text);
break;
case BACKSPACE:
if (cmd->select == DO_SELECT)
set_selection (text, cmd->location, cmd->end_location);
else if (strlen (cmd->text) == 1)
set_selection (text, cmd->end_location, -1);
else
set_selection (text, -1, -1);
command_delete_key (cmd, text);
break;
case UNDO:
command_undo (cmd, text);
break;
case REDO:
command_redo (cmd, text);
break;
case BEGIN_USER:
gtk_text_history_begin_user_action (text->history);
break;
case END_USER:
gtk_text_history_end_user_action (text->history);
break;
case BEGIN_IRREVERSIBLE:
gtk_text_history_begin_irreversible_action (text->history);
break;
case END_IRREVERSIBLE:
gtk_text_history_end_irreversible_action (text->history);
break;
case MODIFIED:
gtk_text_history_modified_changed (text->history, TRUE);
break;
case UNMODIFIED:
gtk_text_history_modified_changed (text->history, FALSE);
break;
case SELECT:
gtk_text_history_selection_changed (text->history,
cmd->location,
cmd->end_location);
break;
case CHECK_SELECT:
g_assert_cmpint (text->selection.insert, ==, cmd->location);
g_assert_cmpint (text->selection.bound, ==, cmd->end_location);
break;
case SET_MAX_UNDO:
/* Not ideal use of location, but fine */
gtk_text_history_set_max_undo_levels (text->history, cmd->location);
break;
default:
break;
}
if (cmd->expected)
g_assert_cmpstr (text->buf->str, ==, cmd->expected);
if (cmd->can_redo == SET)
g_assert_cmpint (text->can_redo, ==, TRUE);
else if (cmd->can_redo == UNSET)
g_assert_cmpint (text->can_redo, ==, FALSE);
if (cmd->can_undo == SET)
g_assert_cmpint (text->can_undo, ==, TRUE);
else if (cmd->can_undo == UNSET)
g_assert_cmpint (text->can_undo, ==, FALSE);
if (cmd->is_modified == SET)
g_assert_cmpint (text->is_modified, ==, TRUE);
else if (cmd->is_modified == UNSET)
g_assert_cmpint (text->is_modified, ==, FALSE);
}
text_free (text);
}
static void
test1 (void)
{
static const Command commands[] = {
{ INSERT, 0, -1, "test", "test", SET, UNSET },
{ INSERT, 2, -1, "s", "tesst", SET, UNSET },
{ INSERT, 3, -1, "ss", "tesssst", SET, UNSET },
{ DELETE_KEY, 2, 5, "sss", "test", SET, UNSET },
{ UNDO, -1, -1, NULL, "tesssst", SET, SET },
{ REDO, -1, -1, NULL, "test", SET, UNSET },
{ UNDO, -1, -1, NULL, "tesssst", SET, SET },
{ DELETE_KEY, 0, 7, "tesssst", "", SET, UNSET },
{ INSERT, 0, -1, "z", "z", SET, UNSET },
{ UNDO, -1, -1, NULL, "", SET, SET },
{ UNDO, -1, -1, NULL, "tesssst", SET, SET },
{ UNDO, -1, -1, NULL, "test", SET, SET },
};
run_test (commands, G_N_ELEMENTS (commands), 0);
}
static void
test2 (void)
{
static const Command commands[] = {
{ BEGIN_IRREVERSIBLE, -1, -1, NULL, "", UNSET, UNSET },
{ INSERT, 0, -1, "this is a test", "this is a test", UNSET, UNSET },
{ END_IRREVERSIBLE, -1, -1, NULL, "this is a test", UNSET, UNSET },
{ UNDO, -1, -1, NULL, "this is a test", UNSET, UNSET },
{ REDO, -1, -1, NULL, "this is a test", UNSET, UNSET },
{ BEGIN_USER, -1, -1, NULL, NULL, UNSET, UNSET },
{ INSERT, 0, -1, "first", "firstthis is a test", UNSET, UNSET },
{ INSERT, 5, -1, " ", "first this is a test", UNSET, UNSET },
{ END_USER, -1, -1, NULL, "first this is a test", SET, UNSET },
{ UNDO, -1, -1, NULL, "this is a test", UNSET, SET },
{ UNDO, -1, -1, NULL, "this is a test", UNSET, SET },
{ REDO, -1, -1, NULL, "first this is a test", SET, UNSET },
{ UNDO, -1, -1, NULL, "this is a test", UNSET, SET },
};
run_test (commands, G_N_ELEMENTS (commands), 0);
}
static void
test3 (void)
{
static const Command commands[] = {
{ INSERT_SEQ, 0, -1, "this is a test of insertions.", "this is a test of insertions.", SET, UNSET },
{ UNDO, -1, -1, NULL, "this is a test of", SET, SET },
{ UNDO, -1, -1, NULL, "this is a test", SET, SET },
{ UNDO, -1, -1, NULL, "this is a", SET, SET },
{ UNDO, -1, -1, NULL, "this is", SET, SET },
{ UNDO, -1, -1, NULL, "this", SET, SET },
{ UNDO, -1, -1, NULL, "", UNSET, SET },
{ UNDO, -1, -1, NULL, "" , UNSET, SET },
{ REDO, -1, -1, NULL, "this", SET, SET },
{ REDO, -1, -1, NULL, "this is", SET, SET },
{ REDO, -1, -1, NULL, "this is a", SET, SET },
{ REDO, -1, -1, NULL, "this is a test", SET, SET },
{ REDO, -1, -1, NULL, "this is a test of", SET, SET },
{ REDO, -1, -1, NULL, "this is a test of insertions.", SET, UNSET },
};
run_test (commands, G_N_ELEMENTS (commands), 0);
}
static void
test4 (void)
{
static const Command commands[] = {
{ INSERT, 0, -1, "initial text", "initial text", SET, UNSET },
/* Barrier */
{ BEGIN_IRREVERSIBLE, -1, -1, NULL, NULL, UNSET, UNSET },
{ END_IRREVERSIBLE, -1, -1, NULL, NULL, UNSET, UNSET },
{ INSERT, 0, -1, "more text ", "more text initial text", SET, UNSET },
{ UNDO, -1, -1, NULL, "initial text", UNSET, SET },
{ UNDO, -1, -1, NULL, "initial text", UNSET, SET },
{ REDO, -1, -1, NULL, "more text initial text", SET, UNSET },
/* Barrier */
{ BEGIN_IRREVERSIBLE, UNSET, UNSET },
{ END_IRREVERSIBLE, UNSET, UNSET },
{ UNDO, -1, -1, NULL, "more text initial text", UNSET, UNSET },
};
run_test (commands, G_N_ELEMENTS (commands), 0);
}
static void
test5 (void)
{
static const Command commands[] = {
{ INSERT, 0, -1, "initial text", "initial text", SET, UNSET },
{ DELETE_KEY, 0, 12, "initial text", "", SET, UNSET },
/* Add empty nested user action (should get ignored) */
{ BEGIN_USER, -1, -1, NULL, NULL, UNSET, UNSET },
{ BEGIN_USER, -1, -1, NULL, NULL, UNSET, UNSET },
{ BEGIN_USER, -1, -1, NULL, NULL, UNSET, UNSET },
{ END_USER, -1, -1, NULL, NULL, UNSET, UNSET },
{ END_USER, -1, -1, NULL, NULL, UNSET, UNSET },
{ END_USER, -1, -1, NULL, NULL, SET, UNSET },
{ UNDO, -1, -1, NULL, "initial text" },
};
run_test (commands, G_N_ELEMENTS (commands), 0);
}
static void
test6 (void)
{
static const Command commands[] = {
{ INSERT_SEQ, 0, -1, " \t\t this is some text", " \t\t this is some text", SET, UNSET },
{ UNDO, -1, -1, NULL, " \t\t this is some", SET, SET },
{ UNDO, -1, -1, NULL, " \t\t this is", SET, SET },
{ UNDO, -1, -1, NULL, " \t\t this", SET, SET },
{ UNDO, -1, -1, NULL, "", UNSET, SET },
{ UNDO, -1, -1, NULL, "", UNSET, SET },
};
run_test (commands, G_N_ELEMENTS (commands), 0);
}
static void
test7 (void)
{
static const Command commands[] = {
{ MODIFIED, -1, -1, NULL, NULL, UNSET, UNSET, SET },
{ UNMODIFIED, -1, -1, NULL, NULL, UNSET, UNSET, UNSET },
{ INSERT, 0, -1, "foo bar", "foo bar", SET, UNSET, UNSET },
{ MODIFIED, -1, -1, NULL, NULL, SET, UNSET, SET },
{ UNDO, -1, -1, NULL, "", UNSET, SET, UNSET },
{ REDO, -1, -1, NULL, "foo bar", SET, UNSET, SET },
{ UNDO, -1, -1, NULL, "", UNSET, SET, UNSET },
{ REDO, -1, -1, NULL, "foo bar", SET, UNSET, SET },
};
run_test (commands, G_N_ELEMENTS (commands), 0);
}
static void
test8 (void)
{
static const Command commands[] = {
{ INSERT, 0, -1, "foo bar", "foo bar", SET, UNSET, UNSET },
{ MODIFIED, -1, -1, NULL, NULL, SET, UNSET, SET },
{ INSERT, 0, -1, "f", "ffoo bar", SET, UNSET, SET },
{ UNMODIFIED, -1, -1, NULL, NULL, SET, UNSET, UNSET },
{ UNDO, -1, -1, NULL, "foo bar", SET, SET, SET },
{ UNDO, -1, -1, NULL, "", UNSET, SET, SET },
{ REDO, -1, -1, NULL, "foo bar", SET, SET, SET },
{ REDO, -1, -1, NULL, "ffoo bar", SET, UNSET, UNSET },
};
run_test (commands, G_N_ELEMENTS (commands), 0);
}
static void
test9 (void)
{
static const Command commands[] = {
{ INSERT, 0, -1, "foo bar", "foo bar", SET, UNSET, UNSET },
{ DELETE_KEY, 0, 3, "foo", " bar", SET, UNSET, UNSET, DO_SELECT },
{ DELETE_KEY, 0, 4, " bar", "", SET, UNSET, UNSET, DO_SELECT },
{ UNDO, -1, -1, NULL, " bar", SET, SET, UNSET },
{ CHECK_SELECT, 0, 4, NULL, " bar", SET, SET, UNSET },
{ UNDO, -1, -1, NULL, "foo bar", SET, SET, UNSET },
{ CHECK_SELECT, 0, 3, NULL, "foo bar", SET, SET, UNSET },
{ BEGIN_IRREVERSIBLE, -1, -1, NULL, "foo bar", UNSET, UNSET, UNSET },
{ END_IRREVERSIBLE, -1, -1, NULL, "foo bar", UNSET, UNSET, UNSET },
};
run_test (commands, G_N_ELEMENTS (commands), 0);
}
static void
test10 (void)
{
static const Command commands[] = {
{ BEGIN_USER }, { INSERT, 0, -1, "t", "t", UNSET, UNSET, UNSET }, { END_USER },
{ BEGIN_USER }, { INSERT, 1, -1, " ", "t ", UNSET, UNSET, UNSET }, { END_USER },
{ BEGIN_USER }, { INSERT, 2, -1, "t", "t t", UNSET, UNSET, UNSET }, { END_USER },
{ BEGIN_USER }, { INSERT, 3, -1, "h", "t th", UNSET, UNSET, UNSET }, { END_USER },
{ BEGIN_USER }, { INSERT, 4, -1, "i", "t thi", UNSET, UNSET, UNSET }, { END_USER },
{ BEGIN_USER }, { INSERT, 5, -1, "s", "t this", UNSET, UNSET, UNSET }, { END_USER },
};
run_test (commands, G_N_ELEMENTS (commands), 0);
}
static void
test11 (void)
{
/* Test backspace */
static const Command commands[] = {
{ INSERT_SEQ, 0, -1, "insert some text", "insert some text", SET, UNSET, UNSET },
{ BACKSPACE, 15, 16, "t", "insert some tex", SET, UNSET, UNSET },
{ BACKSPACE, 14, 15, "x", "insert some te", SET, UNSET, UNSET },
{ BACKSPACE, 13, 14, "e", "insert some t", SET, UNSET, UNSET },
{ BACKSPACE, 12, 13, "t", "insert some ", SET, UNSET, UNSET },
{ UNDO, -1, -1, NULL, "insert some text", SET, SET, UNSET },
};
run_test (commands, G_N_ELEMENTS (commands), 0);
}
static void
test12 (void)
{
static const Command commands[] = {
{ INSERT_SEQ, 0, -1, "this is a test\nmore", "this is a test\nmore", SET, UNSET, UNSET },
{ UNDO, -1, -1, NULL, "this is a test\n", SET, SET, UNSET },
{ UNDO, -1, -1, NULL, "this is a test", SET, SET, UNSET },
{ UNDO, -1, -1, NULL, "this is a", SET, SET, UNSET },
{ UNDO, -1, -1, NULL, "this is", SET, SET, UNSET },
{ UNDO, -1, -1, NULL, "this", SET, SET, UNSET },
{ UNDO, -1, -1, NULL, "", UNSET, SET, UNSET },
};
run_test (commands, G_N_ELEMENTS (commands), 0);
}
static void
test13 (void)
{
static const Command commands[] = {
{ INSERT_SEQ, 0, -1, "this is a test\nmore", "this is a test\nmore", SET, UNSET, UNSET },
{ UNDO, -1, -1, NULL, "this is a test\n", SET, SET, UNSET },
{ UNDO, -1, -1, NULL, "this is a test", SET, SET, UNSET },
{ UNDO, -1, -1, NULL, "this is a", UNSET, SET, UNSET },
{ UNDO, -1, -1, NULL, "this is a", UNSET, SET, UNSET },
{ SET_MAX_UNDO, 2, -1, NULL, "this is a", UNSET, SET, UNSET },
{ REDO, -1, -1, NULL, "this is a test", SET, SET, UNSET },
{ REDO, -1, -1, NULL, "this is a test\n", SET, UNSET, UNSET },
{ REDO, -1, -1, NULL, "this is a test\n", SET, UNSET, UNSET },
};
run_test (commands, G_N_ELEMENTS (commands), 3);
}
int
main (int argc,
char *argv[])
{
g_test_init (&argc, &argv, NULL);
g_test_add_func ("/Gtk/TextHistory/test1", test1);
g_test_add_func ("/Gtk/TextHistory/test2", test2);
g_test_add_func ("/Gtk/TextHistory/test3", test3);
g_test_add_func ("/Gtk/TextHistory/test4", test4);
g_test_add_func ("/Gtk/TextHistory/test5", test5);
g_test_add_func ("/Gtk/TextHistory/test6", test6);
g_test_add_func ("/Gtk/TextHistory/test7", test7);
g_test_add_func ("/Gtk/TextHistory/test8", test8);
g_test_add_func ("/Gtk/TextHistory/test9", test9);
g_test_add_func ("/Gtk/TextHistory/test10", test10);
g_test_add_func ("/Gtk/TextHistory/test11", test11);
g_test_add_func ("/Gtk/TextHistory/test12", test12);
g_test_add_func ("/Gtk/TextHistory/test13", test13);
return g_test_run ();
}

2
testsuite/gtk/action.c
View File

@ -358,6 +358,8 @@ test_introspection (void)
const char *params;
const char *property;
} expected[] = {
{ GTK_TYPE_TEXT, "text.undo", NULL, NULL },
{ GTK_TYPE_TEXT, "text.redo", NULL, NULL },
{ GTK_TYPE_TEXT, "clipboard.cut", NULL, NULL },
{ GTK_TYPE_TEXT, "clipboard.copy", NULL, NULL },
{ GTK_TYPE_TEXT, "clipboard.paste", NULL, NULL },