[gtk/text: 7/29] Add a GtkTextAccessible
- From: Matthias Clasen <matthiasc src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gtk/text: 7/29] Add a GtkTextAccessible
- Date: Sun, 17 Feb 2019 20:57:19 +0000 (UTC)
commit 60a355e3e1625a44f258a3746ace39db6e0fc138
Author: Matthias Clasen <mclasen redhat com>
Date: Fri Feb 15 21:30:36 2019 -0500
Add a GtkTextAccessible
Add an accessible implementation for GtkText.
gtk/a11y/gtktextaccessible.c | 1030 ++++++++++++++++++++++++++++++++++++++++++
gtk/a11y/gtktextaccessible.h | 57 +++
gtk/a11y/meson.build | 2 +
gtk/gtktext.c | 15 +-
4 files changed, 1091 insertions(+), 13 deletions(-)
---
diff --git a/gtk/a11y/gtktextaccessible.c b/gtk/a11y/gtktextaccessible.c
new file mode 100644
index 0000000000..6a0bd453b1
--- /dev/null
+++ b/gtk/a11y/gtktextaccessible.c
@@ -0,0 +1,1030 @@
+/* GTK+ - accessibility implementations
+ * Copyright 2001, 2002, 2003 Sun Microsystems Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#define GDK_COMPILATION
+#include "gdk/gdkeventsprivate.h"
+
+#include <glib/gi18n-lib.h>
+#include <string.h>
+#include <gtk/gtk.h>
+#include "gtkpango.h"
+#include "gtktextaccessible.h"
+#include "gtktextprivate.h"
+#include "gtkcomboboxaccessible.h"
+#include "gtkstylecontextprivate.h"
+#include "gtkwidgetprivate.h"
+
+struct _GtkTextAccessiblePrivate
+{
+ gint cursor_position;
+ gint selection_bound;
+};
+
+/* Callbacks */
+
+static void insert_text_cb (GtkEditable *editable,
+ gchar *new_text,
+ gint new_text_length,
+ gint *position);
+static void delete_text_cb (GtkEditable *editable,
+ gint start,
+ gint end);
+
+static gboolean check_for_selection_change (GtkTextAccessible *entry,
+ GtkText *gtk_text);
+
+
+static void atk_editable_text_interface_init (AtkEditableTextIface *iface);
+static void atk_text_interface_init (AtkTextIface *iface);
+static void atk_action_interface_init (AtkActionIface *iface);
+
+
+G_DEFINE_TYPE_WITH_CODE (GtkTextAccessible, gtk_text_accessible, GTK_TYPE_WIDGET_ACCESSIBLE,
+ G_ADD_PRIVATE (GtkTextAccessible)
+ G_IMPLEMENT_INTERFACE (ATK_TYPE_EDITABLE_TEXT, atk_editable_text_interface_init)
+ G_IMPLEMENT_INTERFACE (ATK_TYPE_TEXT, atk_text_interface_init)
+ G_IMPLEMENT_INTERFACE (ATK_TYPE_ACTION, atk_action_interface_init))
+
+
+static AtkStateSet *
+gtk_text_accessible_ref_state_set (AtkObject *accessible)
+{
+ AtkStateSet *state_set;
+ gboolean value;
+ GtkWidget *widget;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
+ if (widget == NULL)
+ return NULL;
+
+ state_set = ATK_OBJECT_CLASS (gtk_text_accessible_parent_class)->ref_state_set (accessible);
+
+ g_object_get (G_OBJECT (widget), "editable", &value, NULL);
+ if (value)
+ atk_state_set_add_state (state_set, ATK_STATE_EDITABLE);
+ atk_state_set_add_state (state_set, ATK_STATE_SINGLE_LINE);
+
+ return state_set;
+}
+
+static AtkAttributeSet *
+gtk_text_accessible_get_attributes (AtkObject *accessible)
+{
+ GtkWidget *widget;
+ AtkAttributeSet *attributes;
+ AtkAttribute *placeholder_text;
+ const gchar *text;
+
+ attributes = ATK_OBJECT_CLASS (gtk_text_accessible_parent_class)->get_attributes (accessible);
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
+ if (widget == NULL)
+ return attributes;
+
+ text = gtk_text_get_placeholder_text (GTK_TEXT (widget));
+ if (text == NULL)
+ return attributes;
+
+ placeholder_text = g_malloc (sizeof (AtkAttribute));
+ placeholder_text->name = g_strdup ("placeholder-text");
+ placeholder_text->value = g_strdup (text);
+
+ attributes = g_slist_append (attributes, placeholder_text);
+
+ return attributes;
+}
+
+static void
+gtk_text_accessible_initialize (AtkObject *obj,
+ gpointer data)
+{
+ GtkText *entry;
+ GtkTextAccessible *gtk_text_accessible;
+ gint start_pos, end_pos;
+
+ ATK_OBJECT_CLASS (gtk_text_accessible_parent_class)->initialize (obj, data);
+
+ gtk_text_accessible = GTK_TEXT_ACCESSIBLE (obj);
+
+ entry = GTK_TEXT (data);
+ gtk_editable_get_selection_bounds (GTK_EDITABLE (entry), &start_pos, &end_pos);
+ gtk_text_accessible->priv->cursor_position = end_pos;
+ gtk_text_accessible->priv->selection_bound = start_pos;
+
+ /* Set up signal callbacks */
+ g_signal_connect_after (entry, "insert-text", G_CALLBACK (insert_text_cb), NULL);
+ g_signal_connect (entry, "delete-text", G_CALLBACK (delete_text_cb), NULL);
+
+ if (gtk_text_get_visibility (entry))
+ obj->role = ATK_ROLE_TEXT;
+ else
+ obj->role = ATK_ROLE_PASSWORD_TEXT;
+}
+
+static void
+gtk_text_accessible_notify_gtk (GObject *obj,
+ GParamSpec *pspec)
+{
+ GtkWidget *widget;
+ AtkObject* atk_obj;
+ GtkText* gtk_text;
+ GtkTextAccessible* entry;
+
+ widget = GTK_WIDGET (obj);
+ atk_obj = gtk_widget_get_accessible (widget);
+ gtk_text = GTK_TEXT (widget);
+ entry = GTK_TEXT_ACCESSIBLE (atk_obj);
+
+ if (g_strcmp0 (pspec->name, "cursor-position") == 0)
+ {
+ if (check_for_selection_change (entry, gtk_text))
+ g_signal_emit_by_name (atk_obj, "text-selection-changed");
+ /*
+ * The entry cursor position has moved so generate the signal.
+ */
+ g_signal_emit_by_name (atk_obj, "text-caret-moved",
+ entry->priv->cursor_position);
+ }
+ else if (g_strcmp0 (pspec->name, "selection-bound") == 0)
+ {
+ if (check_for_selection_change (entry, gtk_text))
+ g_signal_emit_by_name (atk_obj, "text-selection-changed");
+ }
+ else if (g_strcmp0 (pspec->name, "editable") == 0)
+ {
+ gboolean value;
+
+ g_object_get (obj, "editable", &value, NULL);
+ atk_object_notify_state_change (atk_obj, ATK_STATE_EDITABLE, value);
+ }
+ else if (g_strcmp0 (pspec->name, "visibility") == 0)
+ {
+ gboolean visibility;
+ AtkRole new_role;
+
+ visibility = gtk_text_get_visibility (gtk_text);
+ new_role = visibility ? ATK_ROLE_TEXT : ATK_ROLE_PASSWORD_TEXT;
+ atk_object_set_role (atk_obj, new_role);
+ }
+ else
+ GTK_WIDGET_ACCESSIBLE_CLASS (gtk_text_accessible_parent_class)->notify_gtk (obj, pspec);
+}
+
+static gint
+gtk_text_accessible_get_index_in_parent (AtkObject *accessible)
+{
+ /*
+ * If the parent widget is a combo box then the index is 1
+ * otherwise do the normal thing.
+ */
+ if (accessible->accessible_parent)
+ if (GTK_IS_COMBO_BOX_ACCESSIBLE (accessible->accessible_parent))
+ return 1;
+
+ return ATK_OBJECT_CLASS (gtk_text_accessible_parent_class)->get_index_in_parent (accessible);
+}
+
+static void
+gtk_text_accessible_class_init (GtkTextAccessibleClass *klass)
+{
+ AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
+ GtkWidgetAccessibleClass *widget_class = (GtkWidgetAccessibleClass*)klass;
+
+ class->ref_state_set = gtk_text_accessible_ref_state_set;
+ class->get_index_in_parent = gtk_text_accessible_get_index_in_parent;
+ class->initialize = gtk_text_accessible_initialize;
+ class->get_attributes = gtk_text_accessible_get_attributes;
+
+ widget_class->notify_gtk = gtk_text_accessible_notify_gtk;
+}
+
+static void
+gtk_text_accessible_init (GtkTextAccessible *entry)
+{
+ entry->priv = gtk_text_accessible_get_instance_private (entry);
+ entry->priv->cursor_position = 0;
+ entry->priv->selection_bound = 0;
+}
+
+static gchar *
+gtk_text_accessible_get_text (AtkText *atk_text,
+ gint start_pos,
+ gint end_pos)
+{
+ GtkWidget *widget;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (atk_text));
+ if (widget == NULL)
+ return NULL;
+
+ return gtk_text_get_display_text (GTK_TEXT (widget), start_pos, end_pos);
+}
+
+static gchar *
+gtk_text_accessible_get_text_before_offset (AtkText *text,
+ gint offset,
+ AtkTextBoundary boundary_type,
+ gint *start_offset,
+ gint *end_offset)
+{
+ GtkWidget *widget;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ return NULL;
+
+ return _gtk_pango_get_text_before (gtk_text_get_layout (GTK_TEXT (widget)),
+ boundary_type, offset,
+ start_offset, end_offset);
+}
+
+static gchar *
+gtk_text_accessible_get_text_at_offset (AtkText *text,
+ gint offset,
+ AtkTextBoundary boundary_type,
+ gint *start_offset,
+ gint *end_offset)
+{
+ GtkWidget *widget;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ return NULL;
+
+ return _gtk_pango_get_text_at (gtk_text_get_layout (GTK_TEXT (widget)),
+ boundary_type, offset,
+ start_offset, end_offset);
+}
+
+static gchar *
+gtk_text_accessible_get_text_after_offset (AtkText *text,
+ gint offset,
+ AtkTextBoundary boundary_type,
+ gint *start_offset,
+ gint *end_offset)
+{
+ GtkWidget *widget;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ return NULL;
+
+ return _gtk_pango_get_text_after (gtk_text_get_layout (GTK_TEXT (widget)),
+ boundary_type, offset,
+ start_offset, end_offset);
+}
+
+static gint
+gtk_text_accessible_get_character_count (AtkText *atk_text)
+{
+ GtkWidget *widget;
+ gchar *text;
+ glong char_count;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (atk_text));
+ if (widget == NULL)
+ return 0;
+
+ text = gtk_text_get_display_text (GTK_TEXT (widget), 0, -1);
+
+ char_count = 0;
+ if (text)
+ {
+ char_count = g_utf8_strlen (text, -1);
+ g_free (text);
+ }
+
+ return char_count;
+}
+
+static gint
+gtk_text_accessible_get_caret_offset (AtkText *text)
+{
+ GtkWidget *widget;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ return 0;
+
+ return gtk_editable_get_position (GTK_EDITABLE (widget));
+}
+
+static gboolean
+gtk_text_accessible_set_caret_offset (AtkText *text,
+ gint offset)
+{
+ GtkWidget *widget;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ return FALSE;
+
+ gtk_editable_set_position (GTK_EDITABLE (widget), offset);
+
+ return TRUE;
+}
+
+static AtkAttributeSet *
+add_text_attribute (AtkAttributeSet *attributes,
+ AtkTextAttribute attr,
+ gint i)
+{
+ AtkAttribute *at;
+
+ at = g_new (AtkAttribute, 1);
+ at->name = g_strdup (atk_text_attribute_get_name (attr));
+ at->value = g_strdup (atk_text_attribute_get_value (attr, i));
+
+ return g_slist_prepend (attributes, at);
+}
+
+static AtkAttributeSet *
+gtk_text_accessible_get_run_attributes (AtkText *text,
+ gint offset,
+ gint *start_offset,
+ gint *end_offset)
+{
+ GtkWidget *widget;
+ AtkAttributeSet *attributes;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ return NULL;
+
+ attributes = NULL;
+ attributes = add_text_attribute (attributes, ATK_TEXT_ATTR_DIRECTION,
+ gtk_widget_get_direction (widget));
+ attributes = _gtk_pango_get_run_attributes (attributes,
+ gtk_text_get_layout (GTK_TEXT (widget)),
+ offset,
+ start_offset,
+ end_offset);
+
+ return attributes;
+}
+
+static AtkAttributeSet *
+gtk_text_accessible_get_default_attributes (AtkText *text)
+{
+ GtkWidget *widget;
+ AtkAttributeSet *attributes;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ return NULL;
+
+ attributes = NULL;
+ attributes = add_text_attribute (attributes, ATK_TEXT_ATTR_DIRECTION,
+ gtk_widget_get_direction (widget));
+ attributes = _gtk_pango_get_default_attributes (attributes,
+ gtk_text_get_layout (GTK_TEXT (widget)));
+ attributes = _gtk_style_context_get_attributes (attributes,
+ gtk_widget_get_style_context (widget));
+
+ return attributes;
+}
+
+static void
+gtk_text_accessible_get_character_extents (AtkText *text,
+ gint offset,
+ gint *x,
+ gint *y,
+ gint *width,
+ gint *height,
+ AtkCoordType coords)
+{
+ GtkWidget *widget;
+ GtkText *entry;
+ PangoRectangle char_rect;
+ gchar *entry_text;
+ gint index, x_layout, y_layout;
+ GdkSurface *surface;
+ gint x_surface, y_surface;
+ GtkAllocation allocation;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ return;
+
+ entry = GTK_TEXT (widget);
+
+ gtk_text_get_layout_offsets (entry, &x_layout, &y_layout);
+ entry_text = gtk_text_get_display_text (entry, 0, -1);
+ index = g_utf8_offset_to_pointer (entry_text, offset) - entry_text;
+ g_free (entry_text);
+
+ pango_layout_index_to_pos (gtk_text_get_layout (entry), index, &char_rect);
+ pango_extents_to_pixels (&char_rect, NULL);
+
+ gtk_widget_get_allocation (widget, &allocation);
+
+ surface = gtk_widget_get_surface (widget);
+ gdk_surface_get_origin (surface, &x_surface, &y_surface);
+
+ *x = x_surface + allocation.x + x_layout + char_rect.x;
+ *y = y_surface + allocation.y + y_layout + char_rect.y;
+ *width = char_rect.width;
+ *height = char_rect.height;
+
+ if (coords == ATK_XY_WINDOW)
+ {
+ surface = gdk_surface_get_toplevel (surface);
+ gdk_surface_get_origin (surface, &x_surface, &y_surface);
+
+ *x -= x_surface;
+ *y -= y_surface;
+ }
+}
+
+static gint
+gtk_text_accessible_get_offset_at_point (AtkText *atk_text,
+ gint x,
+ gint y,
+ AtkCoordType coords)
+{
+ GtkWidget *widget;
+ GtkText *entry;
+ gchar *text;
+ gint index, x_layout, y_layout;
+ gint x_surface, y_surface;
+ gint x_local, y_local;
+ GdkSurface *surface;
+ glong offset;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (atk_text));
+ if (widget == NULL)
+ return -1;
+
+ entry = GTK_TEXT (widget);
+
+ gtk_text_get_layout_offsets (entry, &x_layout, &y_layout);
+
+ surface = gtk_widget_get_surface (widget);
+ gdk_surface_get_origin (surface, &x_surface, &y_surface);
+
+ x_local = x - x_layout - x_surface;
+ y_local = y - y_layout - y_surface;
+
+ if (coords == ATK_XY_WINDOW)
+ {
+ surface = gdk_surface_get_toplevel (surface);
+ gdk_surface_get_origin (surface, &x_surface, &y_surface);
+
+ x_local += x_surface;
+ y_local += y_surface;
+ }
+ if (!pango_layout_xy_to_index (gtk_text_get_layout (entry),
+ x_local * PANGO_SCALE,
+ y_local * PANGO_SCALE,
+ &index, NULL))
+ {
+ if (x_local < 0 || y_local < 0)
+ index = 0;
+ else
+ index = -1;
+ }
+
+ offset = -1;
+ if (index != -1)
+ {
+ text = gtk_text_get_display_text (entry, 0, -1);
+ offset = g_utf8_pointer_to_offset (text, text + index);
+ g_free (text);
+ }
+
+ return offset;
+}
+
+static gint
+gtk_text_accessible_get_n_selections (AtkText *text)
+{
+ GtkWidget *widget;
+ gint start, end;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ return 0;
+
+ if (gtk_editable_get_selection_bounds (GTK_EDITABLE (widget), &start, &end))
+ return 1;
+
+ return 0;
+}
+
+static gchar *
+gtk_text_accessible_get_selection (AtkText *text,
+ gint selection_num,
+ gint *start_pos,
+ gint *end_pos)
+{
+ GtkWidget *widget;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ return NULL;
+
+ if (selection_num != 0)
+ return NULL;
+
+ if (gtk_editable_get_selection_bounds (GTK_EDITABLE (widget), start_pos, end_pos))
+ return gtk_editable_get_chars (GTK_EDITABLE (widget), *start_pos, *end_pos);
+
+ return NULL;
+}
+
+static gboolean
+gtk_text_accessible_add_selection (AtkText *text,
+ gint start_pos,
+ gint end_pos)
+{
+ GtkText *entry;
+ GtkWidget *widget;
+ gint start, end;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ return FALSE;
+
+ entry = GTK_TEXT (widget);
+
+ if (!gtk_editable_get_selection_bounds (GTK_EDITABLE (entry), &start, &end))
+ {
+ gtk_editable_select_region (GTK_EDITABLE (entry), start_pos, end_pos);
+ return TRUE;
+ }
+ else
+ return FALSE;
+}
+
+static gboolean
+gtk_text_accessible_remove_selection (AtkText *text,
+ gint selection_num)
+{
+ GtkWidget *widget;
+ gint start, end;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ return FALSE;
+
+ if (selection_num != 0)
+ return FALSE;
+
+ if (gtk_editable_get_selection_bounds (GTK_EDITABLE (widget), &start, &end))
+ {
+ gtk_editable_select_region (GTK_EDITABLE (widget), end, end);
+ return TRUE;
+ }
+ else
+ return FALSE;
+}
+
+static gboolean
+gtk_text_accessible_set_selection (AtkText *text,
+ gint selection_num,
+ gint start_pos,
+ gint end_pos)
+{
+ GtkWidget *widget;
+ gint start, end;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ return FALSE;
+
+ if (selection_num != 0)
+ return FALSE;
+
+ if (gtk_editable_get_selection_bounds (GTK_EDITABLE (widget), &start, &end))
+ {
+ gtk_editable_select_region (GTK_EDITABLE (widget), start_pos, end_pos);
+ return TRUE;
+ }
+ else
+ return FALSE;
+}
+
+static gunichar
+gtk_text_accessible_get_character_at_offset (AtkText *atk_text,
+ gint offset)
+{
+ GtkWidget *widget;
+ gchar *text;
+ gchar *index;
+ gunichar result;
+
+ result = '\0';
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (atk_text));
+ if (widget == NULL)
+ return result;
+
+ if (!gtk_text_get_visibility (GTK_TEXT (widget)))
+ return result;
+
+ text = gtk_text_get_display_text (GTK_TEXT (widget), 0, -1);
+ if (offset < g_utf8_strlen (text, -1))
+ {
+ index = g_utf8_offset_to_pointer (text, offset);
+ result = g_utf8_get_char (index);
+ g_free (text);
+ }
+
+ return result;
+}
+
+static void
+atk_text_interface_init (AtkTextIface *iface)
+{
+ iface->get_text = gtk_text_accessible_get_text;
+ iface->get_character_at_offset = gtk_text_accessible_get_character_at_offset;
+ iface->get_text_before_offset = gtk_text_accessible_get_text_before_offset;
+ iface->get_text_at_offset = gtk_text_accessible_get_text_at_offset;
+ iface->get_text_after_offset = gtk_text_accessible_get_text_after_offset;
+ iface->get_caret_offset = gtk_text_accessible_get_caret_offset;
+ iface->set_caret_offset = gtk_text_accessible_set_caret_offset;
+ iface->get_character_count = gtk_text_accessible_get_character_count;
+ iface->get_n_selections = gtk_text_accessible_get_n_selections;
+ iface->get_selection = gtk_text_accessible_get_selection;
+ iface->add_selection = gtk_text_accessible_add_selection;
+ iface->remove_selection = gtk_text_accessible_remove_selection;
+ iface->set_selection = gtk_text_accessible_set_selection;
+ iface->get_run_attributes = gtk_text_accessible_get_run_attributes;
+ iface->get_default_attributes = gtk_text_accessible_get_default_attributes;
+ iface->get_character_extents = gtk_text_accessible_get_character_extents;
+ iface->get_offset_at_point = gtk_text_accessible_get_offset_at_point;
+}
+
+static void
+gtk_text_accessible_set_text_contents (AtkEditableText *text,
+ const gchar *string)
+{
+ GtkWidget *widget;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ return;
+
+ if (!gtk_editable_get_editable (GTK_EDITABLE (widget)))
+ return;
+
+ gtk_editable_set_text (GTK_EDITABLE (widget), string);
+}
+
+static void
+gtk_text_accessible_insert_text (AtkEditableText *text,
+ const gchar *string,
+ gint length,
+ gint *position)
+{
+ GtkWidget *widget;
+ GtkEditable *editable;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ return;
+
+ editable = GTK_EDITABLE (widget);
+ if (!gtk_editable_get_editable (editable))
+ return;
+
+ gtk_editable_insert_text (editable, string, length, position);
+ gtk_editable_set_position (editable, *position);
+}
+
+static void
+gtk_text_accessible_copy_text (AtkEditableText *text,
+ gint start_pos,
+ gint end_pos)
+{
+ GtkWidget *widget;
+ GtkEditable *editable;
+ gchar *str;
+ GdkClipboard *clipboard;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ return;
+
+ editable = GTK_EDITABLE (widget);
+ str = gtk_editable_get_chars (editable, start_pos, end_pos);
+ clipboard = gtk_widget_get_clipboard (widget);
+ gdk_clipboard_set_text (clipboard, str);
+ g_free (str);
+}
+
+static void
+gtk_text_accessible_cut_text (AtkEditableText *text,
+ gint start_pos,
+ gint end_pos)
+{
+ GtkWidget *widget;
+ GtkEditable *editable;
+ gchar *str;
+ GdkClipboard *clipboard;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ return;
+
+ editable = GTK_EDITABLE (widget);
+ if (!gtk_editable_get_editable (editable))
+ return;
+
+ str = gtk_editable_get_chars (editable, start_pos, end_pos);
+ clipboard = gtk_widget_get_clipboard (widget);
+ gdk_clipboard_set_text (clipboard, str);
+ gtk_editable_delete_text (editable, start_pos, end_pos);
+}
+
+static void
+gtk_text_accessible_delete_text (AtkEditableText *text,
+ gint start_pos,
+ gint end_pos)
+{
+ GtkWidget *widget;
+ GtkEditable *editable;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ return;
+
+ editable = GTK_EDITABLE (widget);
+ if (!gtk_editable_get_editable (editable))
+ return;
+
+ gtk_editable_delete_text (editable, start_pos, end_pos);
+}
+
+typedef struct
+{
+ GtkText* entry;
+ gint position;
+} PasteData;
+
+static void
+paste_received_cb (GObject *clipboard,
+ GAsyncResult *result,
+ gpointer data)
+{
+ PasteData *paste = data;
+ char *text;
+
+ text = gdk_clipboard_read_text_finish (GDK_CLIPBOARD (clipboard), result, NULL);
+ if (text)
+ gtk_editable_insert_text (GTK_EDITABLE (paste->entry), text, -1,
+ &paste->position);
+
+ g_object_unref (paste->entry);
+ g_free (paste);
+ g_free (text);
+}
+
+static void
+gtk_text_accessible_paste_text (AtkEditableText *text,
+ gint position)
+{
+ GtkWidget *widget;
+ GtkEditable *editable;
+ PasteData *paste;
+ GdkClipboard *clipboard;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ return;
+
+ editable = GTK_EDITABLE (widget);
+ if (!gtk_editable_get_editable (editable))
+ return;
+
+ paste = g_new0 (PasteData, 1);
+ paste->entry = GTK_TEXT (widget);
+ paste->position = position;
+
+ g_object_ref (paste->entry);
+ clipboard = gtk_widget_get_clipboard (widget);
+ gdk_clipboard_read_text_async (clipboard, NULL, paste_received_cb, paste);
+}
+
+static void
+atk_editable_text_interface_init (AtkEditableTextIface *iface)
+{
+ iface->set_text_contents = gtk_text_accessible_set_text_contents;
+ iface->insert_text = gtk_text_accessible_insert_text;
+ iface->copy_text = gtk_text_accessible_copy_text;
+ iface->cut_text = gtk_text_accessible_cut_text;
+ iface->delete_text = gtk_text_accessible_delete_text;
+ iface->paste_text = gtk_text_accessible_paste_text;
+ iface->set_run_attributes = NULL;
+}
+
+static void
+insert_text_cb (GtkEditable *editable,
+ gchar *new_text,
+ gint new_text_length,
+ gint *position)
+{
+ GtkTextAccessible *accessible;
+ gint length;
+
+ if (new_text_length == 0)
+ return;
+
+ accessible = GTK_TEXT_ACCESSIBLE (gtk_widget_get_accessible (GTK_WIDGET (editable)));
+ length = g_utf8_strlen (new_text, new_text_length);
+
+ g_signal_emit_by_name (accessible,
+ "text-changed::insert",
+ *position - length,
+ length);
+}
+
+/* We connect to GtkEditable::delete-text, since it carries
+ * the information we need. But we delay emitting our own
+ * text_changed::delete signal until the entry has update
+ * all its internal state and emits GtkText::changed.
+ */
+static void
+delete_text_cb (GtkEditable *editable,
+ gint start,
+ gint end)
+{
+ GtkTextAccessible *accessible;
+
+ accessible = GTK_TEXT_ACCESSIBLE (gtk_widget_get_accessible (GTK_WIDGET (editable)));
+
+ if (end < 0)
+ {
+ gchar *text;
+
+ text = gtk_text_get_display_text (GTK_TEXT (editable), 0, -1);
+ end = g_utf8_strlen (text, -1);
+ g_free (text);
+ }
+
+ if (end == start)
+ return;
+
+ g_signal_emit_by_name (accessible,
+ "text-changed::delete",
+ start,
+ end - start);
+}
+
+static gboolean
+check_for_selection_change (GtkTextAccessible *accessible,
+ GtkText *entry)
+{
+ gboolean ret_val = FALSE;
+ gint start, end;
+
+ if (gtk_editable_get_selection_bounds (GTK_EDITABLE (entry), &start, &end))
+ {
+ if (end != accessible->priv->cursor_position ||
+ start != accessible->priv->selection_bound)
+ /*
+ * This check is here as this function can be called
+ * for notification of selection_bound and current_pos.
+ * The values of current_pos and selection_bound may be the same
+ * for both notifications and we only want to generate one
+ * text_selection_changed signal.
+ */
+ ret_val = TRUE;
+ }
+ else
+ {
+ /* We had a selection */
+ ret_val = (accessible->priv->cursor_position != accessible->priv->selection_bound);
+ }
+
+ accessible->priv->cursor_position = end;
+ accessible->priv->selection_bound = start;
+
+ return ret_val;
+}
+
+static gboolean
+gtk_text_accessible_do_action (AtkAction *action,
+ gint i)
+{
+ GtkWidget *widget;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (action));
+ if (widget == NULL)
+ return FALSE;
+
+ if (!gtk_widget_get_sensitive (widget) || !gtk_widget_get_visible (widget))
+ return FALSE;
+
+ if (i != 0)
+ return FALSE;
+
+ gtk_widget_activate (widget);
+
+ return TRUE;
+}
+
+static gint
+gtk_text_accessible_get_n_actions (AtkAction *action)
+{
+ return 1;
+}
+
+static const gchar *
+gtk_text_accessible_get_keybinding (AtkAction *action,
+ gint i)
+{
+ GtkWidget *widget;
+ GtkWidget *label;
+ AtkRelationSet *set;
+ AtkRelation *relation;
+ GPtrArray *target;
+ gpointer target_object;
+ guint key_val;
+
+ if (i != 0)
+ return NULL;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (action));
+ if (widget == NULL)
+ return NULL;
+
+ set = atk_object_ref_relation_set (ATK_OBJECT (action));
+ if (!set)
+ return NULL;
+
+ label = NULL;
+ relation = atk_relation_set_get_relation_by_type (set, ATK_RELATION_LABELLED_BY);
+ if (relation)
+ {
+ target = atk_relation_get_target (relation);
+
+ target_object = g_ptr_array_index (target, 0);
+ label = gtk_accessible_get_widget (GTK_ACCESSIBLE (target_object));
+ }
+
+ g_object_unref (set);
+
+ if (GTK_IS_LABEL (label))
+ {
+ key_val = gtk_label_get_mnemonic_keyval (GTK_LABEL (label));
+ if (key_val != GDK_KEY_VoidSymbol)
+ return gtk_accelerator_name (key_val, GDK_MOD1_MASK);
+ }
+
+ return NULL;
+}
+
+static const gchar*
+gtk_text_accessible_action_get_name (AtkAction *action,
+ gint i)
+{
+ if (i == 0)
+ return "activate";
+ return NULL;
+}
+
+static const gchar*
+gtk_text_accessible_action_get_localized_name (AtkAction *action,
+ gint i)
+{
+ if (i == 0)
+ return C_("Action name", "Activate");
+ return NULL;
+}
+
+static const gchar*
+gtk_text_accessible_action_get_description (AtkAction *action,
+ gint i)
+{
+ if (i == 0)
+ return C_("Action description", "Activates the entry");
+ return NULL;
+}
+
+static void
+atk_action_interface_init (AtkActionIface *iface)
+{
+ iface->do_action = gtk_text_accessible_do_action;
+ iface->get_n_actions = gtk_text_accessible_get_n_actions;
+ iface->get_keybinding = gtk_text_accessible_get_keybinding;
+ iface->get_name = gtk_text_accessible_action_get_name;
+ iface->get_localized_name = gtk_text_accessible_action_get_localized_name;
+ iface->get_description = gtk_text_accessible_action_get_description;
+}
diff --git a/gtk/a11y/gtktextaccessible.h b/gtk/a11y/gtktextaccessible.h
new file mode 100644
index 0000000000..e47be4236d
--- /dev/null
+++ b/gtk/a11y/gtktextaccessible.h
@@ -0,0 +1,57 @@
+/* GTK+ - accessibility implementations
+ * Copyright 2001 Sun Microsystems Inc.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GTK_TEXT_ACCESSIBLE_H__
+#define __GTK_TEXT_ACCESSIBLE_H__
+
+#if !defined (__GTK_A11Y_H_INSIDE__) && !defined (GTK_COMPILATION)
+#error "Only <gtk/gtk-a11y.h> can be included directly."
+#endif
+
+#include <gtk/a11y/gtkwidgetaccessible.h>
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_TEXT_ACCESSIBLE (gtk_text_accessible_get_type ())
+#define GTK_TEXT_ACCESSIBLE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj),
GTK_TYPE_TEXT_ACCESSIBLE, GtkTextAccessible))
+#define GTK_TEXT_ACCESSIBLE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass),
GTK_TYPE_TEXT_ACCESSIBLE, GtkTextAccessibleClass))
+#define GTK_IS_TEXT_ACCESSIBLE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj),
GTK_TYPE_TEXT_ACCESSIBLE))
+#define GTK_IS_TEXT_ACCESSIBLE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),
GTK_TYPE_TEXT_ACCESSIBLE))
+#define GTK_TEXT_ACCESSIBLE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),
GTK_TYPE_TEXT_ACCESSIBLE, GtkTextAccessibleClass))
+
+typedef struct _GtkTextAccessible GtkTextAccessible;
+typedef struct _GtkTextAccessibleClass GtkTextAccessibleClass;
+typedef struct _GtkTextAccessiblePrivate GtkTextAccessiblePrivate;
+
+struct _GtkTextAccessible
+{
+ GtkWidgetAccessible parent;
+
+ GtkTextAccessiblePrivate *priv;
+};
+
+struct _GtkTextAccessibleClass
+{
+ GtkWidgetAccessibleClass parent_class;
+};
+
+GDK_AVAILABLE_IN_ALL
+GType gtk_text_accessible_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GTK_TEXT_ACCESSIBLE_H__ */
diff --git a/gtk/a11y/meson.build b/gtk/a11y/meson.build
index e1a1f86be9..4ea944d0fd 100644
--- a/gtk/a11y/meson.build
+++ b/gtk/a11y/meson.build
@@ -46,6 +46,7 @@ a11y_sources = files([
'gtkstackaccessible.c',
'gtkstatusbaraccessible.c',
'gtkswitchaccessible.c',
+ 'gtktextaccessible.c',
'gtktextcellaccessible.c',
'gtktextviewaccessible.c',
'gtktogglebuttonaccessible.c',
@@ -100,6 +101,7 @@ a11y_headers = files([
'gtkstackaccessible.h',
'gtkstatusbaraccessible.h',
'gtkswitchaccessible.h',
+ 'gtktextaccessible.h',
'gtktextcellaccessible.h',
'gtktextviewaccessible.h',
'gtktogglebuttonaccessible.h',
diff --git a/gtk/gtktext.c b/gtk/gtktext.c
index 06e193fb14..155dedc3da 100644
--- a/gtk/gtktext.c
+++ b/gtk/gtktext.c
@@ -67,7 +67,7 @@
#include "gtkwidgetprivate.h"
#include "gtkwindow.h"
-#include "a11y/gtkentryaccessible.h"
+#include "a11y/gtktextaccessible.h"
#include <cairo-gobject.h>
#include <string.h>
@@ -228,17 +228,6 @@ struct _GtkTextPrivate
guint populate_all : 1;
};
-struct _EntryIconInfo
-{
- GtkWidget *widget;
- gchar *tooltip;
- guint nonactivatable : 1;
- guint in_drag : 1;
-
- GdkDragAction actions;
- GdkContentFormats *target_list;
-};
-
struct _GtkTextPasswordHint
{
int position; /* Position (in text) of the last password hint */
@@ -1382,7 +1371,7 @@ gtk_text_class_init (GtkTextClass *class)
gtk_binding_entry_add_signal (binding_set, GDK_KEY_semicolon, GDK_CONTROL_MASK,
"insert-emoji", 0);
- gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_ENTRY_ACCESSIBLE);
+ gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_TEXT_ACCESSIBLE);
gtk_widget_class_set_css_name (widget_class, I_("text"));
}
[
Date Prev][
Date Next] [
Thread Prev][
Thread Next]
[
Thread Index]
[
Date Index]
[
Author Index]
