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gtk2/gtk/gtkentrycompletion.c
Xan Lopez c5ce76fda2 Rember the user input that triggered the completion, add API to the 
* gtk/gtkentry.c:
	* gtk/gtkentrycompletion.c:
	* gtk/gtkentrycompletion.h:
	* gtk/gtkentryprivate.h:

	Rember the user input that triggered the completion, add
	API to the retrieve it and reset the entry contents to it
	if the user cancels the tentative completion during
	the inline-selection.

svn path=/trunk/; revision=17666
2007-04-28 07:47:08 +00:00

1966 lines
63 KiB
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/* gtkentrycompletion.c
* Copyright (C) 2003 Kristian Rietveld <kris@gtk.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <config.h>
#include "gtkentrycompletion.h"
#include "gtkentryprivate.h"
#include "gtkcelllayout.h"
#include "gtkintl.h"
#include "gtkcellrenderertext.h"
#include "gtkframe.h"
#include "gtktreeselection.h"
#include "gtktreeview.h"
#include "gtkscrolledwindow.h"
#include "gtkvbox.h"
#include "gtkwindow.h"
#include "gtkentry.h"
#include "gtkmain.h"
#include "gtksignal.h"
#include "gtkmarshalers.h"
#include "gtkprivate.h"
#include "gtkalias.h"
#include <string.h>
/* signals */
enum
{
INSERT_PREFIX,
MATCH_SELECTED,
ACTION_ACTIVATED,
CURSOR_ON_MATCH,
LAST_SIGNAL
};
/* properties */
enum
{
PROP_0,
PROP_MODEL,
PROP_MINIMUM_KEY_LENGTH,
PROP_TEXT_COLUMN,
PROP_INLINE_COMPLETION,
PROP_POPUP_COMPLETION,
PROP_POPUP_SET_WIDTH,
PROP_POPUP_SINGLE_MATCH,
PROP_INLINE_SELECTION
};
#define GTK_ENTRY_COMPLETION_GET_PRIVATE(obj)(G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_ENTRY_COMPLETION, GtkEntryCompletionPrivate))
static void gtk_entry_completion_cell_layout_init (GtkCellLayoutIface *iface);
static void gtk_entry_completion_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_entry_completion_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gtk_entry_completion_finalize (GObject *object);
static void gtk_entry_completion_pack_start (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
gboolean expand);
static void gtk_entry_completion_pack_end (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
gboolean expand);
static void gtk_entry_completion_clear (GtkCellLayout *cell_layout);
static void gtk_entry_completion_add_attribute (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
const char *attribute,
gint column);
static void gtk_entry_completion_set_cell_data_func (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
GtkCellLayoutDataFunc func,
gpointer func_data,
GDestroyNotify destroy);
static void gtk_entry_completion_clear_attributes (GtkCellLayout *cell_layout,
GtkCellRenderer *cell);
static void gtk_entry_completion_reorder (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
gint position);
static gboolean gtk_entry_completion_visible_func (GtkTreeModel *model,
GtkTreeIter *iter,
gpointer data);
static gboolean gtk_entry_completion_popup_key_event (GtkWidget *widget,
GdkEventKey *event,
gpointer user_data);
static gboolean gtk_entry_completion_popup_button_press (GtkWidget *widget,
GdkEventButton *event,
gpointer user_data);
static gboolean gtk_entry_completion_list_button_press (GtkWidget *widget,
GdkEventButton *event,
gpointer user_data);
static gboolean gtk_entry_completion_action_button_press (GtkWidget *widget,
GdkEventButton *event,
gpointer user_data);
static void gtk_entry_completion_selection_changed (GtkTreeSelection *selection,
gpointer data);
static gboolean gtk_entry_completion_list_enter_notify (GtkWidget *widget,
GdkEventCrossing *event,
gpointer data);
static gboolean gtk_entry_completion_list_motion_notify (GtkWidget *widget,
GdkEventMotion *event,
gpointer data);
static void gtk_entry_completion_insert_action (GtkEntryCompletion *completion,
gint index,
const gchar *string,
gboolean markup);
static void gtk_entry_completion_action_data_func (GtkTreeViewColumn *tree_column,
GtkCellRenderer *cell,
GtkTreeModel *model,
GtkTreeIter *iter,
gpointer data);
static gboolean gtk_entry_completion_match_selected (GtkEntryCompletion *completion,
GtkTreeModel *model,
GtkTreeIter *iter);
static gboolean gtk_entry_completion_real_insert_prefix (GtkEntryCompletion *completion,
const gchar *prefix);
static gboolean gtk_entry_completion_cursor_on_match (GtkEntryCompletion *completion,
GtkTreeModel *model,
GtkTreeIter *iter);
static gboolean gtk_entry_completion_insert_completion (GtkEntryCompletion *completion,
GtkTreeModel *model,
GtkTreeIter *iter);
static void gtk_entry_completion_insert_completion_text (GtkEntryCompletion *completion,
const gchar *text);
static guint entry_completion_signals[LAST_SIGNAL] = { 0 };
G_DEFINE_TYPE_WITH_CODE (GtkEntryCompletion, gtk_entry_completion, G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT,
gtk_entry_completion_cell_layout_init))
static void
gtk_entry_completion_class_init (GtkEntryCompletionClass *klass)
{
GObjectClass *object_class;
object_class = (GObjectClass *)klass;
object_class->set_property = gtk_entry_completion_set_property;
object_class->get_property = gtk_entry_completion_get_property;
object_class->finalize = gtk_entry_completion_finalize;
klass->match_selected = gtk_entry_completion_match_selected;
klass->insert_prefix = gtk_entry_completion_real_insert_prefix;
klass->cursor_on_match = gtk_entry_completion_cursor_on_match;
/**
* GtkEntryCompletion::insert-prefix:
* @widget: the object which received the signal
* @prefix: the common prefix of all possible completions
*
* Gets emitted when the inline autocompletion is triggered.
* The default behaviour is to make the entry display the
* whole prefix and select the newly inserted part.
*
* Applications may connect to this signal in order to insert only a
* smaller part of the @prefix into the entry - e.g. the entry used in
* the #GtkFileChooser inserts only the part of the prefix up to the
* next '/'.
*
* Return value: %TRUE if the signal has been handled
*
* Since: 2.6
*/
entry_completion_signals[INSERT_PREFIX] =
g_signal_new (I_("insert_prefix"),
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkEntryCompletionClass, insert_prefix),
_gtk_boolean_handled_accumulator, NULL,
_gtk_marshal_BOOLEAN__STRING,
G_TYPE_BOOLEAN, 1,
G_TYPE_STRING);
/**
* GtkEntryCompletion::match-selected:
* @widget: the object which received the signal
* @model: the #GtkTreeModel containing the matches
* @iter: a #GtkTreeIter positioned at the selected match
*
* Gets emitted when a match from the list is selected.
* The default behaviour is to replace the contents of the
* entry with the contents of the text column in the row
* pointed to by @iter.
*
* Return value: %TRUE if the signal has been handled
*
* Since: 2.4
*/
entry_completion_signals[MATCH_SELECTED] =
g_signal_new (I_("match_selected"),
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkEntryCompletionClass, match_selected),
_gtk_boolean_handled_accumulator, NULL,
_gtk_marshal_BOOLEAN__OBJECT_BOXED,
G_TYPE_BOOLEAN, 2,
GTK_TYPE_TREE_MODEL,
GTK_TYPE_TREE_ITER);
/**
* GtkEntryCompletion::cursor-on-match:
* @widget: the object which received the signal
* @model: the #GtkTreeModel containing the matches
* @iter: a #GtkTreeIter positioned at the selected match
*
* Gets emitted when a match from the cursor is on a match
* of the list.The default behaviour is to replace the contents
* of the entry with the contents of the text column in the row
* pointed to by @iter.
*
* Return value: %TRUE if the signal has been handled
*
* Since: 2.12
*/
entry_completion_signals[CURSOR_ON_MATCH] =
g_signal_new (I_("cursor_on_match"),
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkEntryCompletionClass, cursor_on_match),
_gtk_boolean_handled_accumulator, NULL,
_gtk_marshal_BOOLEAN__OBJECT_BOXED,
G_TYPE_BOOLEAN, 2,
GTK_TYPE_TREE_MODEL,
GTK_TYPE_TREE_ITER);
/**
* GtkEntryCompletion::action-activated:
* @widget: the object which received the signal
* @index: the index of the activated action
*
* Gets emitted when an action is activated.
*
* Since: 2.4
*/
entry_completion_signals[ACTION_ACTIVATED] =
g_signal_new (I_("action_activated"),
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkEntryCompletionClass, action_activated),
NULL, NULL,
_gtk_marshal_NONE__INT,
G_TYPE_NONE, 1,
G_TYPE_INT);
g_object_class_install_property (object_class,
PROP_MODEL,
g_param_spec_object ("model",
P_("Completion Model"),
P_("The model to find matches in"),
GTK_TYPE_TREE_MODEL,
GTK_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_MINIMUM_KEY_LENGTH,
g_param_spec_int ("minimum-key-length",
P_("Minimum Key Length"),
P_("Minimum length of the search key in order to look up matches"),
0,
G_MAXINT,
1,
GTK_PARAM_READWRITE));
/**
* GtkEntryCompletion:text-column:
*
* The column of the model containing the strings.
*
* Since: 2.6
*/
g_object_class_install_property (object_class,
PROP_TEXT_COLUMN,
g_param_spec_int ("text-column",
P_("Text column"),
P_("The column of the model containing the strings."),
-1,
G_MAXINT,
-1,
GTK_PARAM_READWRITE));
/**
* GtkEntryCompletion:inline-completion:
*
* Determines whether the common prefix of the possible completions
* should be inserted automatically in the entry. Note that this
* requires text-column to be set, even if you are using a custom
* match function.
*
* Since: 2.6
**/
g_object_class_install_property (object_class,
PROP_INLINE_COMPLETION,
g_param_spec_boolean ("inline-completion",
P_("Inline completion"),
P_("Whether the common prefix should be inserted automatically"),
FALSE,
GTK_PARAM_READWRITE));
/**
* GtkEntryCompletion:popup-completion:
*
* Determines whether the possible completions should be
* shown in a popup window.
*
* Since: 2.6
**/
g_object_class_install_property (object_class,
PROP_POPUP_COMPLETION,
g_param_spec_boolean ("popup-completion",
P_("Popup completion"),
P_("Whether the completions should be shown in a popup window"),
TRUE,
GTK_PARAM_READWRITE));
/**
* GtkEntryCompletion:popup-set-width:
*
* Determines whether the completions popup window will be
* resized to the width of the entry.
*
* Since: 2.8
*/
g_object_class_install_property (object_class,
PROP_POPUP_SET_WIDTH,
g_param_spec_boolean ("popup-set-width",
P_("Popup set width"),
P_("If TRUE, the popup window will have the same size as the entry"),
TRUE,
GTK_PARAM_READWRITE));
/**
* GtkEntryCompletion:popup-single-match:
*
* Determines whether the completions popup window will shown
* for a single possible completion. You probably want to set
* this to %FALSE if you are using
* <link linkend="GtkEntryCompletion--inline-completion">inline
* completion</link>.
*
* Since: 2.8
*/
g_object_class_install_property (object_class,
PROP_POPUP_SINGLE_MATCH,
g_param_spec_boolean ("popup-single-match",
P_("Popup single match"),
P_("If TRUE, the popup window will appear for a single match."),
TRUE,
GTK_PARAM_READWRITE));
/**
* GtkEntryCompletion:inline-selection:
*
* Determines whether the possible completions on the popup
* will appear in the entry as you navigate through them.
* Since: 2.12
*/
g_object_class_install_property (object_class,
PROP_INLINE_SELECTION,
g_param_spec_boolean ("inline-selection",
P_("Inline selection"),
P_("Your description here"),
FALSE,
GTK_PARAM_READWRITE));
g_type_class_add_private (object_class, sizeof (GtkEntryCompletionPrivate));
}
static void
gtk_entry_completion_cell_layout_init (GtkCellLayoutIface *iface)
{
iface->pack_start = gtk_entry_completion_pack_start;
iface->pack_end = gtk_entry_completion_pack_end;
iface->clear = gtk_entry_completion_clear;
iface->add_attribute = gtk_entry_completion_add_attribute;
iface->set_cell_data_func = gtk_entry_completion_set_cell_data_func;
iface->clear_attributes = gtk_entry_completion_clear_attributes;
iface->reorder = gtk_entry_completion_reorder;
}
static void
gtk_entry_completion_init (GtkEntryCompletion *completion)
{
GtkCellRenderer *cell;
GtkTreeSelection *sel;
GtkEntryCompletionPrivate *priv;
GtkWidget *popup_frame;
/* yes, also priv, need to keep the code readable */
priv = completion->priv = GTK_ENTRY_COMPLETION_GET_PRIVATE (completion);
priv->minimum_key_length = 1;
priv->text_column = -1;
priv->has_completion = FALSE;
priv->inline_completion = FALSE;
priv->popup_completion = TRUE;
priv->popup_set_width = TRUE;
priv->popup_single_match = TRUE;
priv->inline_selection = FALSE;
/* completions */
priv->filter_model = NULL;
priv->tree_view = gtk_tree_view_new ();
g_signal_connect (priv->tree_view, "button_press_event",
G_CALLBACK (gtk_entry_completion_list_button_press),
completion);
g_signal_connect (priv->tree_view, "enter_notify_event",
G_CALLBACK (gtk_entry_completion_list_enter_notify),
completion);
g_signal_connect (priv->tree_view, "motion_notify_event",
G_CALLBACK (gtk_entry_completion_list_motion_notify),
completion);
gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (priv->tree_view), FALSE);
gtk_tree_view_set_hover_selection (GTK_TREE_VIEW (priv->tree_view), TRUE);
sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view));
gtk_tree_selection_set_mode (sel, GTK_SELECTION_SINGLE);
gtk_tree_selection_unselect_all (sel);
g_signal_connect (sel, "changed",
G_CALLBACK (gtk_entry_completion_selection_changed),
completion);
priv->first_sel_changed = TRUE;
priv->column = gtk_tree_view_column_new ();
gtk_tree_view_append_column (GTK_TREE_VIEW (priv->tree_view), priv->column);
priv->scrolled_window = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (priv->scrolled_window),
GTK_POLICY_NEVER,
GTK_POLICY_AUTOMATIC);
gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (priv->scrolled_window),
GTK_SHADOW_NONE);
/* a nasty hack to get the completions treeview to size nicely */
gtk_widget_set_size_request (GTK_SCROLLED_WINDOW (priv->scrolled_window)->vscrollbar, -1, 0);
/* actions */
priv->actions = gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_BOOLEAN);
priv->action_view =
gtk_tree_view_new_with_model (GTK_TREE_MODEL (priv->actions));
g_object_ref_sink (priv->action_view);
g_signal_connect (priv->action_view, "button_press_event",
G_CALLBACK (gtk_entry_completion_action_button_press),
completion);
g_signal_connect (priv->action_view, "enter_notify_event",
G_CALLBACK (gtk_entry_completion_list_enter_notify),
completion);
g_signal_connect (priv->action_view, "motion_notify_event",
G_CALLBACK (gtk_entry_completion_list_motion_notify),
completion);
gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (priv->action_view), FALSE);
gtk_tree_view_set_hover_selection (GTK_TREE_VIEW (priv->action_view), TRUE);
sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->action_view));
gtk_tree_selection_set_mode (sel, GTK_SELECTION_SINGLE);
gtk_tree_selection_unselect_all (sel);
cell = gtk_cell_renderer_text_new ();
gtk_tree_view_insert_column_with_data_func (GTK_TREE_VIEW (priv->action_view),
0, "",
cell,
gtk_entry_completion_action_data_func,
NULL,
NULL);
/* pack it all */
priv->popup_window = gtk_window_new (GTK_WINDOW_POPUP);
gtk_window_set_resizable (GTK_WINDOW (priv->popup_window), FALSE);
g_signal_connect (priv->popup_window, "key_press_event",
G_CALLBACK (gtk_entry_completion_popup_key_event),
completion);
g_signal_connect (priv->popup_window, "key_release_event",
G_CALLBACK (gtk_entry_completion_popup_key_event),
completion);
g_signal_connect (priv->popup_window, "button_press_event",
G_CALLBACK (gtk_entry_completion_popup_button_press),
completion);
popup_frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (popup_frame),
GTK_SHADOW_ETCHED_IN);
gtk_widget_show (popup_frame);
gtk_container_add (GTK_CONTAINER (priv->popup_window), popup_frame);
priv->vbox = gtk_vbox_new (FALSE, 0);
gtk_container_add (GTK_CONTAINER (popup_frame), priv->vbox);
gtk_container_add (GTK_CONTAINER (priv->scrolled_window), priv->tree_view);
gtk_box_pack_start (GTK_BOX (priv->vbox), priv->scrolled_window,
TRUE, TRUE, 0);
/* we don't want to see the action treeview when no actions have
* been inserted, so we pack the action treeview after the first
* action has been added
*/
}
static void
gtk_entry_completion_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkEntryCompletion *completion = GTK_ENTRY_COMPLETION (object);
GtkEntryCompletionPrivate *priv = completion->priv;
switch (prop_id)
{
case PROP_MODEL:
gtk_entry_completion_set_model (completion,
g_value_get_object (value));
break;
case PROP_MINIMUM_KEY_LENGTH:
gtk_entry_completion_set_minimum_key_length (completion,
g_value_get_int (value));
break;
case PROP_TEXT_COLUMN:
priv->text_column = g_value_get_int (value);
break;
case PROP_INLINE_COMPLETION:
priv->inline_completion = g_value_get_boolean (value);
break;
case PROP_POPUP_COMPLETION:
priv->popup_completion = g_value_get_boolean (value);
break;
case PROP_POPUP_SET_WIDTH:
priv->popup_set_width = g_value_get_boolean (value);
break;
case PROP_POPUP_SINGLE_MATCH:
priv->popup_single_match = g_value_get_boolean (value);
break;
case PROP_INLINE_SELECTION:
priv->inline_selection = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_entry_completion_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkEntryCompletion *completion = GTK_ENTRY_COMPLETION (object);
switch (prop_id)
{
case PROP_MODEL:
g_value_set_object (value,
gtk_entry_completion_get_model (completion));
break;
case PROP_MINIMUM_KEY_LENGTH:
g_value_set_int (value, gtk_entry_completion_get_minimum_key_length (completion));
break;
case PROP_TEXT_COLUMN:
g_value_set_int (value, gtk_entry_completion_get_text_column (completion));
break;
case PROP_INLINE_COMPLETION:
g_value_set_boolean (value, gtk_entry_completion_get_inline_completion (completion));
break;
case PROP_POPUP_COMPLETION:
g_value_set_boolean (value, gtk_entry_completion_get_popup_completion (completion));
break;
case PROP_POPUP_SET_WIDTH:
g_value_set_boolean (value, gtk_entry_completion_get_popup_set_width (completion));
break;
case PROP_POPUP_SINGLE_MATCH:
g_value_set_boolean (value, gtk_entry_completion_get_popup_single_match (completion));
break;
case PROP_INLINE_SELECTION:
g_value_set_boolean (value, gtk_entry_completion_get_inline_selection (completion));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_entry_completion_finalize (GObject *object)
{
GtkEntryCompletion *completion = GTK_ENTRY_COMPLETION (object);
GtkEntryCompletionPrivate *priv = completion->priv;
if (priv->tree_view)
gtk_widget_destroy (priv->tree_view);
if (priv->entry)
gtk_entry_set_completion (GTK_ENTRY (priv->entry), NULL);
if (priv->actions)
g_object_unref (priv->actions);
if (priv->action_view)
g_object_unref (priv->action_view);
g_free (priv->case_normalized_key);
if (priv->popup_window)
gtk_widget_destroy (priv->popup_window);
if (priv->match_notify)
(* priv->match_notify) (priv->match_data);
G_OBJECT_CLASS (gtk_entry_completion_parent_class)->finalize (object);
}
/* implement cell layout interface */
static void
gtk_entry_completion_pack_start (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
gboolean expand)
{
GtkEntryCompletionPrivate *priv;
g_return_if_fail (GTK_IS_ENTRY_COMPLETION (cell_layout));
priv = GTK_ENTRY_COMPLETION_GET_PRIVATE (cell_layout);
gtk_tree_view_column_pack_start (priv->column, cell, expand);
}
static void
gtk_entry_completion_pack_end (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
gboolean expand)
{
GtkEntryCompletionPrivate *priv;
g_return_if_fail (GTK_IS_ENTRY_COMPLETION (cell_layout));
priv = GTK_ENTRY_COMPLETION_GET_PRIVATE (cell_layout);
gtk_tree_view_column_pack_end (priv->column, cell, expand);
}
static void
gtk_entry_completion_clear (GtkCellLayout *cell_layout)
{
GtkEntryCompletionPrivate *priv;
g_return_if_fail (GTK_IS_ENTRY_COMPLETION (cell_layout));
priv = GTK_ENTRY_COMPLETION_GET_PRIVATE (cell_layout);
gtk_tree_view_column_clear (priv->column);
}
static void
gtk_entry_completion_add_attribute (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
const gchar *attribute,
gint column)
{
GtkEntryCompletionPrivate *priv;
g_return_if_fail (GTK_IS_ENTRY_COMPLETION (cell_layout));
priv = GTK_ENTRY_COMPLETION_GET_PRIVATE (cell_layout);
gtk_tree_view_column_add_attribute (priv->column, cell, attribute, column);
}
static void
gtk_entry_completion_set_cell_data_func (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
GtkCellLayoutDataFunc func,
gpointer func_data,
GDestroyNotify destroy)
{
GtkEntryCompletionPrivate *priv;
g_return_if_fail (GTK_IS_ENTRY_COMPLETION (cell_layout));
priv = GTK_ENTRY_COMPLETION_GET_PRIVATE (cell_layout);
gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (priv->column),
cell, func, func_data, destroy);
}
static void
gtk_entry_completion_clear_attributes (GtkCellLayout *cell_layout,
GtkCellRenderer *cell)
{
GtkEntryCompletionPrivate *priv;
g_return_if_fail (GTK_IS_ENTRY_COMPLETION (cell_layout));
priv = GTK_ENTRY_COMPLETION_GET_PRIVATE (cell_layout);
gtk_tree_view_column_clear_attributes (priv->column, cell);
}
static void
gtk_entry_completion_reorder (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
gint position)
{
GtkEntryCompletionPrivate *priv;
g_return_if_fail (GTK_IS_ENTRY_COMPLETION (cell_layout));
priv = GTK_ENTRY_COMPLETION_GET_PRIVATE (cell_layout);
gtk_cell_layout_reorder (GTK_CELL_LAYOUT (priv->column), cell, position);
}
/* all those callbacks */
static gboolean
gtk_entry_completion_default_completion_func (GtkEntryCompletion *completion,
const gchar *key,
GtkTreeIter *iter,
gpointer user_data)
{
gchar *item = NULL;
gchar *normalized_string;
gchar *case_normalized_string;
gboolean ret = FALSE;
GtkTreeModel *model;
model = gtk_tree_model_filter_get_model (completion->priv->filter_model);
g_return_val_if_fail (gtk_tree_model_get_column_type (model, completion->priv->text_column) == G_TYPE_STRING,
FALSE);
gtk_tree_model_get (model, iter,
completion->priv->text_column, &item,
-1);
if (item != NULL)
{
normalized_string = g_utf8_normalize (item, -1, G_NORMALIZE_ALL);
case_normalized_string = g_utf8_casefold (normalized_string, -1);
if (!strncmp (key, case_normalized_string, strlen (key)))
ret = TRUE;
g_free (item);
g_free (normalized_string);
g_free (case_normalized_string);
}
return ret;
}
static gboolean
gtk_entry_completion_visible_func (GtkTreeModel *model,
GtkTreeIter *iter,
gpointer data)
{
gboolean ret = FALSE;
GtkEntryCompletion *completion = GTK_ENTRY_COMPLETION (data);
if (!completion->priv->case_normalized_key)
return ret;
if (completion->priv->match_func)
ret = (* completion->priv->match_func) (completion,
completion->priv->case_normalized_key,
iter,
completion->priv->match_data);
else if (completion->priv->text_column >= 0)
ret = gtk_entry_completion_default_completion_func (completion,
completion->priv->case_normalized_key,
iter,
NULL);
return ret;
}
static gboolean
gtk_entry_completion_popup_key_event (GtkWidget *widget,
GdkEventKey *event,
gpointer user_data)
{
GtkEntryCompletion *completion = GTK_ENTRY_COMPLETION (user_data);
if (!GTK_WIDGET_MAPPED (completion->priv->popup_window))
return FALSE;
/* propagate event to the entry */
gtk_widget_event (completion->priv->entry, (GdkEvent *)event);
return TRUE;
}
static gboolean
gtk_entry_completion_popup_button_press (GtkWidget *widget,
GdkEventButton *event,
gpointer user_data)
{
GtkEntryCompletion *completion = GTK_ENTRY_COMPLETION (user_data);
if (!GTK_WIDGET_MAPPED (completion->priv->popup_window))
return FALSE;
/* if we come here, it's usually time to popdown */
_gtk_entry_completion_popdown (completion);
return TRUE;
}
static gboolean
gtk_entry_completion_list_button_press (GtkWidget *widget,
GdkEventButton *event,
gpointer user_data)
{
GtkEntryCompletion *completion = GTK_ENTRY_COMPLETION (user_data);
GtkTreePath *path = NULL;
if (!GTK_WIDGET_MAPPED (completion->priv->popup_window))
return FALSE;
if (gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (widget),
event->x, event->y,
&path, NULL, NULL, NULL))
{
GtkTreeIter iter;
gboolean entry_set;
gtk_tree_model_get_iter (GTK_TREE_MODEL (completion->priv->filter_model),
&iter, path);
gtk_tree_path_free (path);
g_signal_handler_block (completion->priv->entry,
completion->priv->changed_id);
g_signal_emit (completion, entry_completion_signals[MATCH_SELECTED],
0, GTK_TREE_MODEL (completion->priv->filter_model),
&iter, &entry_set);
g_signal_handler_unblock (completion->priv->entry,
completion->priv->changed_id);
_gtk_entry_completion_popdown (completion);
return TRUE;
}
return FALSE;
}
static gboolean
gtk_entry_completion_action_button_press (GtkWidget *widget,
GdkEventButton *event,
gpointer user_data)
{
GtkEntryCompletion *completion = GTK_ENTRY_COMPLETION (user_data);
GtkTreePath *path = NULL;
if (!GTK_WIDGET_MAPPED (completion->priv->popup_window))
return FALSE;
_gtk_entry_reset_im_context (GTK_ENTRY (completion->priv->entry));
if (gtk_tree_view_get_path_at_pos (GTK_TREE_VIEW (widget),
event->x, event->y,
&path, NULL, NULL, NULL))
{
g_signal_emit (completion, entry_completion_signals[ACTION_ACTIVATED],
0, gtk_tree_path_get_indices (path)[0]);
gtk_tree_path_free (path);
_gtk_entry_completion_popdown (completion);
return TRUE;
}
return FALSE;
}
static void
gtk_entry_completion_action_data_func (GtkTreeViewColumn *tree_column,
GtkCellRenderer *cell,
GtkTreeModel *model,
GtkTreeIter *iter,
gpointer data)
{
gchar *string = NULL;
gboolean markup;
gtk_tree_model_get (model, iter,
0, &string,
1, &markup,
-1);
if (!string)
return;
if (markup)
g_object_set (cell,
"text", NULL,
"markup", string,
NULL);
else
g_object_set (cell,
"markup", NULL,
"text", string,
NULL);
g_free (string);
}
static void
gtk_entry_completion_selection_changed (GtkTreeSelection *selection,
gpointer data)
{
GtkEntryCompletion *completion = GTK_ENTRY_COMPLETION (data);
if (completion->priv->first_sel_changed)
{
completion->priv->first_sel_changed = FALSE;
if (gtk_widget_is_focus (completion->priv->tree_view))
gtk_tree_selection_unselect_all (selection);
}
}
/* public API */
/**
* gtk_entry_completion_new:
*
* Creates a new #GtkEntryCompletion object.
*
* Return value: A newly created #GtkEntryCompletion object.
*
* Since: 2.4
*/
GtkEntryCompletion *
gtk_entry_completion_new (void)
{
GtkEntryCompletion *completion;
completion = g_object_new (GTK_TYPE_ENTRY_COMPLETION, NULL);
return completion;
}
/**
* gtk_entry_completion_get_entry:
* @completion: A #GtkEntryCompletion.
*
* Gets the entry @completion has been attached to.
*
* Return value: The entry @completion has been attached to.
*
* Since: 2.4
*/
GtkWidget *
gtk_entry_completion_get_entry (GtkEntryCompletion *completion)
{
g_return_val_if_fail (GTK_IS_ENTRY_COMPLETION (completion), NULL);
return completion->priv->entry;
}
/**
* gtk_entry_completion_set_model:
* @completion: A #GtkEntryCompletion.
* @model: The #GtkTreeModel.
*
* Sets the model for a #GtkEntryCompletion. If @completion already has
* a model set, it will remove it before setting the new model.
* If model is %NULL, then it will unset the model.
*
* Since: 2.4
*/
void
gtk_entry_completion_set_model (GtkEntryCompletion *completion,
GtkTreeModel *model)
{
g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
g_return_if_fail (model == NULL || GTK_IS_TREE_MODEL (model));
if (!model)
{
gtk_tree_view_set_model (GTK_TREE_VIEW (completion->priv->tree_view),
NULL);
_gtk_entry_completion_popdown (completion);
completion->priv->filter_model = NULL;
return;
}
/* code will unref the old filter model (if any) */
completion->priv->filter_model =
GTK_TREE_MODEL_FILTER (gtk_tree_model_filter_new (model, NULL));
gtk_tree_model_filter_set_visible_func (completion->priv->filter_model,
gtk_entry_completion_visible_func,
completion,
NULL);
gtk_tree_view_set_model (GTK_TREE_VIEW (completion->priv->tree_view),
GTK_TREE_MODEL (completion->priv->filter_model));
g_object_unref (completion->priv->filter_model);
g_object_notify (G_OBJECT (completion), "model");
if (GTK_WIDGET_VISIBLE (completion->priv->popup_window))
_gtk_entry_completion_resize_popup (completion);
}
/**
* gtk_entry_completion_get_model:
* @completion: A #GtkEntryCompletion.
*
* Returns the model the #GtkEntryCompletion is using as data source.
* Returns %NULL if the model is unset.
*
* Return value: A #GtkTreeModel, or %NULL if none is currently being used.
*
* Since: 2.4
*/
GtkTreeModel *
gtk_entry_completion_get_model (GtkEntryCompletion *completion)
{
g_return_val_if_fail (GTK_IS_ENTRY_COMPLETION (completion), NULL);
if (!completion->priv->filter_model)
return NULL;
return gtk_tree_model_filter_get_model (completion->priv->filter_model);
}
/**
* gtk_entry_completion_set_match_func:
* @completion: A #GtkEntryCompletion.
* @func: The #GtkEntryCompletionMatchFunc to use.
* @func_data: The user data for @func.
* @func_notify: Destroy notifier for @func_data.
*
* Sets the match function for @completion to be @func. The match function
* is used to determine if a row should or should not be in the completion
* list.
*
* Since: 2.4
*/
void
gtk_entry_completion_set_match_func (GtkEntryCompletion *completion,
GtkEntryCompletionMatchFunc func,
gpointer func_data,
GDestroyNotify func_notify)
{
g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
if (completion->priv->match_notify)
(* completion->priv->match_notify) (completion->priv->match_data);
completion->priv->match_func = func;
completion->priv->match_data = func_data;
completion->priv->match_notify = func_notify;
}
/**
* gtk_entry_completion_set_minimum_key_length:
* @completion: A #GtkEntryCompletion.
* @length: The minimum length of the key in order to start completing.
*
* Requires the length of the search key for @completion to be at least
* @length. This is useful for long lists, where completing using a small
* key takes a lot of time and will come up with meaningless results anyway
* (ie, a too large dataset).
*
* Since: 2.4
*/
void
gtk_entry_completion_set_minimum_key_length (GtkEntryCompletion *completion,
gint length)
{
g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
g_return_if_fail (length >= 0);
if (completion->priv->minimum_key_length != length)
{
completion->priv->minimum_key_length = length;
g_object_notify (G_OBJECT (completion), "minimum-key-length");
}
}
/**
* gtk_entry_completion_get_minimum_key_length:
* @completion: A #GtkEntryCompletion.
*
* Returns the minimum key length as set for @completion.
*
* Return value: The currently used minimum key length.
*
* Since: 2.4
*/
gint
gtk_entry_completion_get_minimum_key_length (GtkEntryCompletion *completion)
{
g_return_val_if_fail (GTK_IS_ENTRY_COMPLETION (completion), 0);
return completion->priv->minimum_key_length;
}
/**
* gtk_entry_completion_complete:
* @completion: A #GtkEntryCompletion.
*
* Requests a completion operation, or in other words a refiltering of the
* current list with completions, using the current key. The completion list
* view will be updated accordingly.
*
* Since: 2.4
*/
void
gtk_entry_completion_complete (GtkEntryCompletion *completion)
{
gchar *tmp;
g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
if (!completion->priv->filter_model)
return;
g_free (completion->priv->case_normalized_key);
tmp = g_utf8_normalize (gtk_entry_get_text (GTK_ENTRY (completion->priv->entry)),
-1, G_NORMALIZE_ALL);
completion->priv->case_normalized_key = g_utf8_casefold (tmp, -1);
g_free (tmp);
gtk_tree_model_filter_refilter (completion->priv->filter_model);
if (GTK_WIDGET_VISIBLE (completion->priv->popup_window))
_gtk_entry_completion_resize_popup (completion);
}
static void
gtk_entry_completion_insert_action (GtkEntryCompletion *completion,
gint index,
const gchar *string,
gboolean markup)
{
GtkTreeIter iter;
gtk_list_store_insert (completion->priv->actions, &iter, index);
gtk_list_store_set (completion->priv->actions, &iter,
0, string,
1, markup,
-1);
if (!completion->priv->action_view->parent)
{
GtkTreePath *path = gtk_tree_path_new_from_indices (0, -1);
gtk_tree_view_set_cursor (GTK_TREE_VIEW (completion->priv->action_view),
path, NULL, FALSE);
gtk_tree_path_free (path);
gtk_box_pack_start (GTK_BOX (completion->priv->vbox),
completion->priv->action_view, FALSE, FALSE, 0);
gtk_widget_show (completion->priv->action_view);
}
}
/**
* gtk_entry_completion_insert_action_text:
* @completion: A #GtkEntryCompletion.
* @index_: The index of the item to insert.
* @text: Text of the item to insert.
*
* Inserts an action in @completion's action item list at position @index_
* with text @text. If you want the action item to have markup, use
* gtk_entry_completion_insert_action_markup().
*
* Since: 2.4
*/
void
gtk_entry_completion_insert_action_text (GtkEntryCompletion *completion,
gint index_,
const gchar *text)
{
g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
g_return_if_fail (text != NULL);
gtk_entry_completion_insert_action (completion, index_, text, FALSE);
}
/**
* gtk_entry_completion_insert_action_markup:
* @completion: A #GtkEntryCompletion.
* @index_: The index of the item to insert.
* @markup: Markup of the item to insert.
*
* Inserts an action in @completion's action item list at position @index_
* with markup @markup.
*
* Since: 2.4
*/
void
gtk_entry_completion_insert_action_markup (GtkEntryCompletion *completion,
gint index_,
const gchar *markup)
{
g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
g_return_if_fail (markup != NULL);
gtk_entry_completion_insert_action (completion, index_, markup, TRUE);
}
/**
* gtk_entry_completion_delete_action:
* @completion: A #GtkEntryCompletion.
* @index_: The index of the item to Delete.
*
* Deletes the action at @index_ from @completion's action list.
*
* Since: 2.4
*/
void
gtk_entry_completion_delete_action (GtkEntryCompletion *completion,
gint index_)
{
GtkTreeIter iter;
g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
g_return_if_fail (index_ >= 0);
gtk_tree_model_iter_nth_child (GTK_TREE_MODEL (completion->priv->actions),
&iter, NULL, index_);
gtk_list_store_remove (completion->priv->actions, &iter);
}
/**
* gtk_entry_completion_set_text_column:
* @completion: A #GtkEntryCompletion.
* @column: The column in the model of @completion to get strings from.
*
* Convenience function for setting up the most used case of this code: a
* completion list with just strings. This function will set up @completion
* to have a list displaying all (and just) strings in the completion list,
* and to get those strings from @column in the model of @completion.
*
* This functions creates and adds a #GtkCellRendererText for the selected
* column. If you need to set the text column, but don't want the cell
* renderer, use g_object_set() to set the ::text_column property directly.
*
* Since: 2.4
*/
void
gtk_entry_completion_set_text_column (GtkEntryCompletion *completion,
gint column)
{
GtkCellRenderer *cell;
g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
g_return_if_fail (column >= 0);
completion->priv->text_column = column;
cell = gtk_cell_renderer_text_new ();
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (completion),
cell, TRUE);
gtk_cell_layout_add_attribute (GTK_CELL_LAYOUT (completion),
cell,
"text", column);
g_object_notify (G_OBJECT (completion), "text-column");
}
/**
* gtk_entry_completion_get_text_column:
* @completion: a #GtkEntryCompletion
*
* Returns the column in the model of @completion to get strings from.
*
* Return value: the column containing the strings
*
* Since: 2.6
**/
gint
gtk_entry_completion_get_text_column (GtkEntryCompletion *completion)
{
g_return_val_if_fail (GTK_IS_ENTRY_COMPLETION (completion), -1);
return completion->priv->text_column;
}
/* private */
static gboolean
gtk_entry_completion_list_enter_notify (GtkWidget *widget,
GdkEventCrossing *event,
gpointer data)
{
GtkEntryCompletion *completion = GTK_ENTRY_COMPLETION (data);
return completion->priv->ignore_enter;
}
static gboolean
gtk_entry_completion_list_motion_notify (GtkWidget *widget,
GdkEventMotion *event,
gpointer data)
{
GtkEntryCompletion *completion = GTK_ENTRY_COMPLETION (data);
completion->priv->ignore_enter = FALSE;
return FALSE;
}
/* some nasty size requisition */
gboolean
_gtk_entry_completion_resize_popup (GtkEntryCompletion *completion)
{
gint x, y;
gint matches, items, height, x_border, y_border;
GdkScreen *screen;
gint monitor_num;
gint vertical_separator;
GdkRectangle monitor;
GtkRequisition popup_req;
GtkRequisition entry_req;
GtkTreePath *path;
gboolean above;
gint width;
if (!completion->priv->entry->window)
return FALSE;
gdk_window_get_origin (completion->priv->entry->window, &x, &y);
_gtk_entry_get_borders (GTK_ENTRY (completion->priv->entry), &x_border, &y_border);
matches = gtk_tree_model_iter_n_children (GTK_TREE_MODEL (completion->priv->filter_model), NULL);
items = MIN (matches, 15);
gtk_tree_view_column_cell_get_size (completion->priv->column, NULL,
NULL, NULL, NULL, &height);
gtk_widget_style_get (GTK_WIDGET (completion->priv->tree_view),
"vertical-separator", &vertical_separator,
NULL);
height += vertical_separator;
gtk_widget_realize (completion->priv->tree_view);
if (items <= 0)
gtk_widget_hide (completion->priv->scrolled_window);
else
gtk_widget_show (completion->priv->scrolled_window);
screen = gtk_widget_get_screen (GTK_WIDGET (completion->priv->entry));
monitor_num = gdk_screen_get_monitor_at_window (screen,
GTK_WIDGET (completion->priv->entry)->window);
gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
if (completion->priv->popup_set_width)
width = MIN (completion->priv->entry->allocation.width, monitor.width) - 2 * x_border;
else
width = -1;
gtk_tree_view_columns_autosize (GTK_TREE_VIEW (completion->priv->tree_view));
gtk_widget_set_size_request (completion->priv->tree_view, width, items * height);
/* default on no match */
completion->priv->current_selected = -1;
items = gtk_tree_model_iter_n_children (GTK_TREE_MODEL (completion->priv->actions), NULL);
if (items)
{
gtk_widget_show (completion->priv->action_view);
gtk_widget_set_size_request (completion->priv->action_view, width, -1);
}
else
gtk_widget_hide (completion->priv->action_view);
gtk_widget_size_request (completion->priv->popup_window, &popup_req);
gtk_widget_size_request (completion->priv->entry, &entry_req);
if (x < monitor.x)
x = monitor.x;
else if (x + popup_req.width > monitor.x + monitor.width)
x = monitor.x + monitor.width - popup_req.width;
if (y + entry_req.height + popup_req.height <= monitor.y + monitor.height ||
y - monitor.y < (monitor.y + monitor.height) - (y + entry_req.height))
{
y += entry_req.height;
above = FALSE;
}
else
{
y -= popup_req.height;
above = TRUE;
}
if (matches > 0)
{
path = gtk_tree_path_new_from_indices (above ? matches - 1 : 0, -1);
gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (completion->priv->tree_view), path,
NULL, FALSE, 0.0, 0.0);
gtk_tree_path_free (path);
}
gtk_window_move (GTK_WINDOW (completion->priv->popup_window), x, y);
return above;
}
void
_gtk_entry_completion_popup (GtkEntryCompletion *completion)
{
GtkTreeViewColumn *column;
GList *renderers;
GtkWidget *toplevel;
if (GTK_WIDGET_MAPPED (completion->priv->popup_window))
return;
if (!GTK_WIDGET_MAPPED (completion->priv->entry))
return;
if (!GTK_WIDGET_HAS_FOCUS (completion->priv->entry))
return;
completion->priv->ignore_enter = TRUE;
column = gtk_tree_view_get_column (GTK_TREE_VIEW (completion->priv->action_view), 0);
renderers = gtk_tree_view_column_get_cell_renderers (column);
gtk_widget_ensure_style (completion->priv->tree_view);
g_object_set (GTK_CELL_RENDERER (renderers->data), "cell-background-gdk",
&completion->priv->tree_view->style->bg[GTK_STATE_NORMAL],
NULL);
g_list_free (renderers);
gtk_widget_show_all (completion->priv->vbox);
_gtk_entry_completion_resize_popup (completion);
toplevel = gtk_widget_get_toplevel (completion->priv->entry);
if (GTK_IS_WINDOW (toplevel))
gtk_window_group_add_window (gtk_window_get_group (GTK_WINDOW (toplevel)),
GTK_WINDOW (completion->priv->popup_window));
/* prevent the first row being focused */
gtk_widget_grab_focus (completion->priv->tree_view);
gtk_tree_selection_unselect_all (gtk_tree_view_get_selection (GTK_TREE_VIEW (completion->priv->tree_view)));
gtk_tree_selection_unselect_all (gtk_tree_view_get_selection (GTK_TREE_VIEW (completion->priv->action_view)));
gtk_widget_show (completion->priv->popup_window);
gtk_grab_add (completion->priv->popup_window);
gdk_pointer_grab (completion->priv->popup_window->window, TRUE,
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_MASK,
NULL, NULL, GDK_CURRENT_TIME);
}
void
_gtk_entry_completion_popdown (GtkEntryCompletion *completion)
{
if (!GTK_WIDGET_MAPPED (completion->priv->popup_window))
return;
completion->priv->ignore_enter = FALSE;
gdk_pointer_ungrab (GDK_CURRENT_TIME);
gtk_grab_remove (completion->priv->popup_window);
gtk_widget_hide (completion->priv->popup_window);
}
static gboolean
gtk_entry_completion_match_selected (GtkEntryCompletion *completion,
GtkTreeModel *model,
GtkTreeIter *iter)
{
gchar *str = NULL;
gtk_tree_model_get (model, iter, completion->priv->text_column, &str, -1);
gtk_entry_set_text (GTK_ENTRY (completion->priv->entry), str ? str : "");
/* move cursor to the end */
gtk_editable_set_position (GTK_EDITABLE (completion->priv->entry), -1);
g_free (str);
return TRUE;
}
static gboolean
gtk_entry_completion_cursor_on_match (GtkEntryCompletion *completion,
GtkTreeModel *model,
GtkTreeIter *iter)
{
gtk_entry_completion_insert_completion (completion, model, iter);
return TRUE;
}
static gchar *
gtk_entry_completion_compute_prefix (GtkEntryCompletion *completion)
{
GtkTreeIter iter;
gchar *prefix = NULL;
gboolean valid;
const gchar *key;
if (completion->priv->text_column < 0)
return NULL;
key = gtk_entry_get_text (GTK_ENTRY (completion->priv->entry));
valid = gtk_tree_model_get_iter_first (GTK_TREE_MODEL (completion->priv->filter_model),
&iter);
while (valid)
{
gchar *text;
gtk_tree_model_get (GTK_TREE_MODEL (completion->priv->filter_model),
&iter, completion->priv->text_column, &text,
-1);
if (text && g_str_has_prefix (text, key))
{
if (!prefix)
prefix = g_strdup (text);
else
{
gchar *p = prefix;
gchar *q = text;
while (*p && *p == *q)
{
p++;
q++;
}
*p = '\0';
if (p > prefix)
{
/* strip a partial multibyte character */
q = g_utf8_find_prev_char (prefix, p);
switch (g_utf8_get_char_validated (q, p - q))
{
case (gunichar)-2:
case (gunichar)-1:
*q = 0;
default: ;
}
}
}
}
g_free (text);
valid = gtk_tree_model_iter_next (GTK_TREE_MODEL (completion->priv->filter_model),
&iter);
}
return prefix;
}
static gboolean
gtk_entry_completion_real_insert_prefix (GtkEntryCompletion *completion,
const gchar *prefix)
{
if (prefix)
{
gint key_len;
gint prefix_len;
const gchar *key;
prefix_len = g_utf8_strlen (prefix, -1);
key = gtk_entry_get_text (GTK_ENTRY (completion->priv->entry));
key_len = g_utf8_strlen (key, -1);
if (prefix_len > key_len)
{
gint pos = prefix_len;
gtk_editable_insert_text (GTK_EDITABLE (completion->priv->entry),
prefix + strlen (key), -1, &pos);
gtk_editable_select_region (GTK_EDITABLE (completion->priv->entry),
key_len, prefix_len);
completion->priv->has_completion = TRUE;
}
}
return TRUE;
}
/**
* gtk_entry_completion_get_completion_prefix:
* @completion: a #GtkEntryCompletion
*
* Get the original text entered by the user that triggered
* the completion or NULL if there's no completion ongoing.
*
* Since: 2.12
**/
const gchar*
gtk_entry_completion_get_completion_prefix (GtkEntryCompletion *completion)
{
g_return_val_if_fail (GTK_IS_ENTRY_COMPLETION (completion), NULL);
return completion->priv->completion_prefix;
}
static void
gtk_entry_completion_insert_completion_text (GtkEntryCompletion *completion,
const gchar *text)
{
GtkEntryCompletionPrivate *priv = completion->priv;
gchar *needle;
gint len;
priv = completion->priv;
if (priv->changed_id > 0)
{
g_signal_handler_block (priv->entry,
priv->changed_id);
}
if (priv->insert_text_id > 0)
{
g_signal_handler_block (completion->priv->entry,
completion->priv->insert_text_id);
}
gtk_entry_set_text (GTK_ENTRY (priv->entry), text);
needle = g_strstr_len (text, -1, completion->priv->completion_prefix);
if (needle)
{
len = g_utf8_strlen (text, -1) - g_utf8_strlen (needle, -1)
+ g_utf8_strlen (priv->completion_prefix, -1);
gtk_editable_select_region (GTK_EDITABLE (priv->entry),
len, -1);
}
if (priv->changed_id > 0)
{
g_signal_handler_unblock (priv->entry,
priv->changed_id);
}
if (priv->insert_text_id > 0)
{
g_signal_handler_unblock (priv->entry,
priv->insert_text_id);
}
}
static gboolean
gtk_entry_completion_insert_completion (GtkEntryCompletion *completion,
GtkTreeModel *model,
GtkTreeIter *iter)
{
gchar *str = NULL;
if (completion->priv->text_column < 0)
return FALSE;
gtk_tree_model_get (model, iter,
completion->priv->text_column, &str,
-1);
gtk_entry_completion_insert_completion_text (completion, str);
g_free (str);
return TRUE;
}
/**
* gtk_entry_completion_insert_prefix:
* @completion: a #GtkEntryCompletion
*
* Requests a prefix insertion.
*
* Since: 2.6
**/
void
gtk_entry_completion_insert_prefix (GtkEntryCompletion *completion)
{
gboolean done;
gchar *prefix;
if (completion->priv->insert_text_id > 0)
g_signal_handler_block (completion->priv->entry,
completion->priv->insert_text_id);
prefix = gtk_entry_completion_compute_prefix (completion);
if (prefix)
{
g_signal_emit (completion, entry_completion_signals[INSERT_PREFIX],
0, prefix, &done);
g_free (prefix);
}
if (completion->priv->insert_text_id > 0)
g_signal_handler_unblock (completion->priv->entry,
completion->priv->insert_text_id);
}
/**
* gtk_entry_completion_set_inline_completion:
* @completion: a #GtkEntryCompletion
* @inline_completion: %TRUE to do inline completion
*
* Sets whether the common prefix of the possible completions should
* be automatically inserted in the entry.
*
* Since: 2.6
**/
void
gtk_entry_completion_set_inline_completion (GtkEntryCompletion *completion,
gboolean inline_completion)
{
g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
inline_completion = inline_completion != FALSE;
if (completion->priv->inline_completion != inline_completion)
{
completion->priv->inline_completion = inline_completion;
g_object_notify (G_OBJECT (completion), "inline-completion");
}
}
/**
* gtk_entry_completion_get_inline_completion:
* @completion: a #GtkEntryCompletion
*
* Returns whether the common prefix of the possible completions should
* be automatically inserted in the entry.
*
* Return value: %TRUE if inline completion is turned on
*
* Since: 2.6
**/
gboolean
gtk_entry_completion_get_inline_completion (GtkEntryCompletion *completion)
{
g_return_val_if_fail (GTK_IS_ENTRY_COMPLETION (completion), FALSE);
return completion->priv->inline_completion;
}
/**
* gtk_entry_completion_set_popup_completion:
* @completion: a #GtkEntryCompletion
* @popup_completion: %TRUE to do popup completion
*
* Sets whether the completions should be presented in a popup window.
*
* Since: 2.6
**/
void
gtk_entry_completion_set_popup_completion (GtkEntryCompletion *completion,
gboolean popup_completion)
{
g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
popup_completion = popup_completion != FALSE;
if (completion->priv->popup_completion != popup_completion)
{
completion->priv->popup_completion = popup_completion;
g_object_notify (G_OBJECT (completion), "popup-completion");
}
}
/**
* gtk_entry_completion_get_popup_completion:
* @completion: a #GtkEntryCompletion
*
* Returns whether the completions should be presented in a popup window.
*
* Return value: %TRUE if popup completion is turned on
*
* Since: 2.6
**/
gboolean
gtk_entry_completion_get_popup_completion (GtkEntryCompletion *completion)
{
g_return_val_if_fail (GTK_IS_ENTRY_COMPLETION (completion), TRUE);
return completion->priv->popup_completion;
}
/**
* gtk_entry_completion_set_popup_set_width:
* @completion: a #GtkEntryCompletion
* @popup_set_width: %TRUE to make the width of the popup the same as the entry
*
* Sets whether the completion popup window will be resized to be the same
* width as the entry.
*
* Since: 2.8
*/
void
gtk_entry_completion_set_popup_set_width (GtkEntryCompletion *completion,
gboolean popup_set_width)
{
g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
popup_set_width = popup_set_width != FALSE;
if (completion->priv->popup_set_width != popup_set_width)
{
completion->priv->popup_set_width = popup_set_width;
g_object_notify (G_OBJECT (completion), "popup-set-width");
}
}
/**
* gtk_entry_completion_get_popup_set_width:
* @completion: a #GtkEntryCompletion
*
* Returns whether the completion popup window will be resized to the
* width of the entry.
*
* Return value: %TRUE if the popup window will be resized to the width of
* the entry
*
* Since: 2.8
**/
gboolean
gtk_entry_completion_get_popup_set_width (GtkEntryCompletion *completion)
{
g_return_val_if_fail (GTK_IS_ENTRY_COMPLETION (completion), TRUE);
return completion->priv->popup_set_width;
}
/**
* gtk_entry_completion_set_popup_single_match:
* @completion: a #GtkEntryCompletion
* @popup_single_match: %TRUE if the popup should appear even for a single
* match
*
* Sets whether the completion popup window will appear even if there is
* only a single match. You may want to set this to %FALSE if you
* are using <link linkend="GtkEntryCompletion--inline-completion">inline
* completion</link>.
*
* Since: 2.8
*/
void
gtk_entry_completion_set_popup_single_match (GtkEntryCompletion *completion,
gboolean popup_single_match)
{
g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
popup_single_match = popup_single_match != FALSE;
if (completion->priv->popup_single_match != popup_single_match)
{
completion->priv->popup_single_match = popup_single_match;
g_object_notify (G_OBJECT (completion), "popup-single-match");
}
}
/**
* gtk_entry_completion_get_popup_single_match:
* @completion: a #GtkEntryCompletion
*
* Returns whether the completion popup window will appear even if there is
* only a single match.
*
* Return value: %TRUE if the popup window will appear regardless of the
* number of matches.
*
* Since: 2.8
**/
gboolean
gtk_entry_completion_get_popup_single_match (GtkEntryCompletion *completion)
{
g_return_val_if_fail (GTK_IS_ENTRY_COMPLETION (completion), TRUE);
return completion->priv->popup_single_match;
}
void
gtk_entry_completion_set_inline_selection (GtkEntryCompletion *completion,
gboolean inline_selection)
{
g_return_if_fail (GTK_IS_ENTRY_COMPLETION (completion));
inline_selection = inline_selection != FALSE;
if (completion->priv->inline_selection != inline_selection)
{
completion->priv->inline_selection = inline_selection;
g_object_notify (G_OBJECT (completion), "inline-selection");
}
}
gboolean
gtk_entry_completion_get_inline_selection (GtkEntryCompletion *completion)
{
g_return_val_if_fail (GTK_IS_ENTRY_COMPLETION (completion), FALSE);
return completion->priv->inline_selection;
}
#define __GTK_ENTRY_COMPLETION_C__
#include "gtkaliasdef.c"
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