1 files changed, 911 insertions, 0 deletions
diff --git a/libview/ev-view-accessible.c b/libview/ev-view-accessible.c
new file mode 100644
index 00000000..9b41c919
--- /dev/null
+++ b/libview/ev-view-accessible.c
@@ -0,0 +1,911 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */
+/* this file is part of evince, a mate document viewer
+ *
+ * Copyright (C) 2004 Red Hat, Inc
+ *
+ * Evince is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Evince 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include <math.h>
+#include <config.h>
+#include <glib/gi18n-lib.h>
+#include <gtk/gtk.h>
+#include <libgail-util/gail-util.h>
+
+#include "ev-selection.h"
+#include "ev-page-cache.h"
+#include "ev-view-accessible.h"
+#include "ev-view-private.h"
+
+#define EV_TYPE_VIEW_ACCESSIBLE (ev_view_accessible_get_type ())
+#define EV_VIEW_ACCESSIBLE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), EV_TYPE_VIEW_ACCESSIBLE, EvViewAccessible))
+#define EV_IS_VIEW_ACCESSIBLE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), EV_TYPE_VIEW_ACCESSIBLE))
+
+static GType ev_view_accessible_get_type (void);
+
+enum {
+ ACTION_SCROLL_UP,
+ ACTION_SCROLL_DOWN,
+ LAST_ACTION
+};
+
+static const gchar *const ev_view_accessible_action_names[] =
+{
+ N_("Scroll Up"),
+ N_("Scroll Down"),
+ NULL
+};
+
+static const gchar *const ev_view_accessible_action_descriptions[] =
+{
+ N_("Scroll View Up"),
+ N_("Scroll View Down"),
+ NULL
+};
+
+typedef struct {
+ /* Action */
+ gchar *action_descriptions[LAST_ACTION];
+ guint action_idle_handler;
+ GtkScrollType idle_scroll;
+ GtkTextBuffer *buffer;
+ guint current_page;
+} EvViewAccessiblePriv;
+
+typedef GtkAccessibleClass EvViewAccessibleClass;
+typedef GtkAccessible EvViewAccessible;
+
+#define EV_VIEW_ACCESSIBLE_GET_PRIVATE(inst) (G_TYPE_INSTANCE_GET_PRIVATE ((inst), EV_TYPE_VIEW_ACCESSIBLE, EvViewAccessiblePriv))
+
+static void
+ev_view_accessible_finalize (GObject *object)
+{
+ EvViewAccessiblePriv *priv = EV_VIEW_ACCESSIBLE_GET_PRIVATE (object);
+ int i;
+
+ if (priv->action_idle_handler)
+ g_source_remove (priv->action_idle_handler);
+ for (i = 0; i < LAST_ACTION; i++)
+ g_free (priv->action_descriptions [i]);
+ if (priv->buffer)
+ g_object_unref (priv->buffer);
+
+}
+
+static void ev_view_accessible_class_init (EvViewAccessibleClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->finalize = ev_view_accessible_finalize;
+
+ g_type_class_add_private (klass, sizeof (EvViewAccessiblePriv));
+}
+
+static GtkTextBuffer *
+ev_view_accessible_get_text_buffer (EvViewAccessible *accessible, EvView *view)
+{
+ EvPageCache *page_cache;
+ const gchar *retval = NULL;
+ EvViewAccessiblePriv* priv = EV_VIEW_ACCESSIBLE_GET_PRIVATE (accessible);
+
+ page_cache = view->page_cache;
+ if (!page_cache) {
+ return NULL;
+ }
+
+ if (view->current_page == priv->current_page && priv->buffer) {
+ return priv->buffer;
+ }
+
+ priv->current_page = view->current_page;
+
+ if (!priv->buffer) {
+ priv->buffer = gtk_text_buffer_new (NULL);
+ }
+
+ retval = ev_page_cache_get_text (page_cache, view->current_page);
+ gtk_text_buffer_set_text (priv->buffer, retval, -1);
+
+ return priv->buffer;
+}
+
+static gchar*
+ev_view_accessible_get_text (AtkText *text,
+ gint start_pos,
+ gint end_pos)
+{
+ GtkWidget *widget;
+ GtkTextIter start, end;
+ GtkTextBuffer *buffer;
+ gchar *retval;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return NULL;
+
+ buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget));
+ if (!buffer)
+ return NULL;
+
+ gtk_text_buffer_get_iter_at_offset (buffer, &start, start_pos);
+ gtk_text_buffer_get_iter_at_offset (buffer, &end, end_pos);
+ retval = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
+
+ return retval;
+}
+
+static gunichar
+ev_view_accessible_get_character_at_offset (AtkText *text,
+ gint offset)
+{
+ GtkWidget *widget;
+ GtkTextIter start, end;
+ GtkTextBuffer *buffer;
+ gchar *string;
+ gunichar unichar;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return '\0';
+
+ buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget));
+ if (!buffer)
+ return '\0';
+
+ if (offset >= gtk_text_buffer_get_char_count (buffer))
+ return '\0';
+
+ gtk_text_buffer_get_iter_at_offset (buffer, &start, offset);
+ end = start;
+ gtk_text_iter_forward_char (&end);
+ string = gtk_text_buffer_get_slice (buffer, &start, &end, FALSE);
+ unichar = g_utf8_get_char (string);
+ g_free(string);
+
+ return unichar;
+}
+
+static gchar*
+ev_view_accessible_get_text_before_offset (AtkText *text,
+ gint offset,
+ AtkTextBoundary boundary_type,
+ gint *start_offset,
+ gint *end_offset)
+{
+ GtkWidget *widget;
+ gpointer layout = NULL;
+ GailTextUtil *gail_text = NULL;
+ gchar *retval = NULL;
+ GtkTextBuffer *buffer;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return NULL;
+
+ buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget));
+ if (!buffer)
+ return NULL;
+
+ gail_text = gail_text_util_new ();
+ gail_text_util_buffer_setup (gail_text, buffer);
+ retval = gail_text_util_get_text (gail_text, layout,
+ GAIL_BEFORE_OFFSET, boundary_type,
+ offset, start_offset, end_offset);
+ g_object_unref (gail_text);
+
+ return retval;
+}
+
+static gchar*
+ev_view_accessible_get_text_at_offset (AtkText *text,
+ gint offset,
+ AtkTextBoundary boundary_type,
+ gint *start_offset,
+ gint *end_offset)
+{
+ GtkWidget *widget;
+ gpointer layout = NULL;
+ GailTextUtil *gail_text = NULL;
+ gchar *retval = NULL;
+ GtkTextBuffer *buffer;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return NULL;
+
+ buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget));
+ if (!buffer)
+ return NULL;
+
+ gail_text = gail_text_util_new ();
+ gail_text_util_buffer_setup (gail_text, buffer);
+ retval = gail_text_util_get_text (gail_text, layout,
+ GAIL_AT_OFFSET, boundary_type,
+ offset, start_offset, end_offset);
+ g_object_unref (gail_text);
+
+ return retval;
+}
+
+static gchar*
+ev_view_accessible_get_text_after_offset (AtkText *text,
+ gint offset,
+ AtkTextBoundary boundary_type,
+ gint *start_offset,
+ gint *end_offset)
+{
+ GtkWidget *widget;
+ gpointer layout = NULL;
+ GailTextUtil *gail_text = NULL;
+ gchar *retval = NULL;
+ GtkTextBuffer *buffer;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return NULL;
+
+ buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget));
+ if (!buffer)
+ return NULL;
+
+ gail_text = gail_text_util_new ();
+ gail_text_util_buffer_setup (gail_text, buffer);
+ retval = gail_text_util_get_text (gail_text, layout,
+ GAIL_AFTER_OFFSET, boundary_type,
+ offset, start_offset, end_offset);
+ g_object_unref (gail_text);
+
+ return retval;
+}
+
+static gint
+ev_view_accessible_get_character_count (AtkText *text)
+{
+ GtkWidget *widget;
+ GtkTextBuffer *buffer;
+ gint retval;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return 0;
+
+ buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget));
+ if (!buffer)
+ return 0;
+
+ retval = gtk_text_buffer_get_char_count (buffer);
+
+ return retval;
+}
+
+static gint
+ev_view_accessible_get_caret_offset (AtkText *text)
+{
+ GtkWidget *widget;
+ GtkTextBuffer *buffer;
+ GtkTextMark *cursor_mark;
+ GtkTextIter cursor_itr;
+ gint retval;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return 0;
+
+ buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget));
+ if (!buffer)
+ return 0;
+
+ cursor_mark = gtk_text_buffer_get_insert (buffer);
+ gtk_text_buffer_get_iter_at_mark (buffer, &cursor_itr, cursor_mark);
+ retval = gtk_text_iter_get_offset (&cursor_itr);
+
+ return retval;
+}
+
+static gboolean
+ev_view_accessible_set_caret_offset (AtkText *text, gint offset)
+{
+ GtkWidget *widget;
+ GtkTextBuffer *buffer;
+ GtkTextIter pos_itr;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return FALSE;
+
+ buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget));
+ if (!buffer)
+ return FALSE;
+
+ gtk_text_buffer_get_iter_at_offset (buffer, &pos_itr, offset);
+ gtk_text_buffer_place_cursor (buffer, &pos_itr);
+
+ return TRUE;
+}
+
+static AtkAttributeSet*
+ev_view_accessible_get_run_attributes (AtkText *text,
+ gint offset,
+ gint *start_offset,
+ gint *end_offset)
+{
+ GtkWidget *widget;
+ GtkTextBuffer *buffer;
+ AtkAttributeSet *retval;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return NULL;
+
+ buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget));
+ if (!buffer)
+ return NULL;
+
+ retval = gail_misc_buffer_get_run_attributes (buffer, offset,
+ start_offset, end_offset);
+
+ return retval;
+}
+
+static AtkAttributeSet*
+ev_view_accessible_get_default_attributes (AtkText *text)
+{
+ GtkWidget *widget;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return NULL;
+ return NULL;
+}
+
+static void
+ev_view_accessible_get_character_extents (AtkText *text,
+ gint offset,
+ gint *x,
+ gint *y,
+ gint *width,
+ gint *height,
+ AtkCoordType coords)
+{
+ GtkWidget *widget, *toplevel;
+ EvRectangle *areas = NULL;
+ EvRectangle *rect = NULL;
+ guint n_areas = 0;
+ EvPageCache *page_cache;
+ gint x_widget, y_widget, x_window, y_window;
+ gdouble scale;
+ GtkBorder border;
+ GdkRectangle page_area;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return;
+
+ page_cache = EV_VIEW (widget)->page_cache;
+ if (!page_cache)
+ return;
+
+ ev_view_get_page_extents (EV_VIEW (widget), EV_VIEW (widget)->current_page,
+ &page_area, &border);
+
+ scale = EV_VIEW (widget)->scale;
+ ev_page_cache_get_text_layout (page_cache, EV_VIEW (widget)->current_page, &areas, &n_areas);
+ if (!areas)
+ return;
+
+ if (offset > n_areas)
+ return;
+
+ rect = areas + offset;
+ *x = (int)(rect->x1 * scale);
+ *y = (int)(rect->y1 * scale);
+
+ *width = (int)(fabs (rect->x2 - rect->x1) * scale);
+ *height = (int)(fabs (rect->y2 - rect->y1) * scale);
+
+ toplevel = gtk_widget_get_toplevel (widget);
+ gtk_widget_translate_coordinates (widget, toplevel, 0, 0, &x_widget, &y_widget);
+ *x += x_widget;
+ *y += y_widget;
+
+ if (coords == ATK_XY_SCREEN) {
+ gdk_window_get_origin (gtk_widget_get_window (toplevel), &x_window, &y_window);
+ *x += x_window;
+ *y += y_window;
+ }
+
+ *x -= EV_VIEW (widget)->scroll_x;
+ *y -= EV_VIEW (widget)->scroll_y;
+
+ *x += page_area.x;
+ *y += page_area.y;
+}
+
+static gint
+ev_view_accessible_get_offset_at_point (AtkText *text,
+ gint x,
+ gint y,
+ AtkCoordType coords)
+{
+ GtkWidget *widget, *toplevel;
+ EvRectangle *areas = NULL;
+ EvRectangle *rect = NULL;
+ guint n_areas = 0;
+ guint i = 0;
+ EvPageCache *page_cache;
+ gint x_window, y_window, x_widget, y_widget;
+ gint offset=-1, rx, ry;
+ gdouble scale;
+ GtkBorder border;
+ GdkRectangle page_area;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return -1;
+
+ page_cache = EV_VIEW (widget)->page_cache;
+ if (!page_cache)
+ return -1;
+
+ ev_view_get_page_extents (EV_VIEW (widget), EV_VIEW (widget)->current_page,
+ &page_area, &border);
+
+ scale = EV_VIEW (widget)->scale;
+ ev_page_cache_get_text_layout (page_cache, EV_VIEW (widget)->current_page, &areas, &n_areas);
+ if (!areas)
+ return -1;
+
+ rx = x;
+ ry = y;
+
+ rx -= page_area.x;
+ ry -= page_area.y;
+
+ rx += EV_VIEW (widget)->scroll_x;
+ ry += EV_VIEW (widget)->scroll_y;
+
+ toplevel = gtk_widget_get_toplevel (widget);
+ gtk_widget_translate_coordinates (widget, toplevel, 0, 0, &x_widget, &y_widget);
+ rx -= x_widget;
+ ry -= y_widget;
+
+ if (coords == ATK_XY_SCREEN) {
+ gdk_window_get_origin (gtk_widget_get_window (toplevel), &x_window, &y_window);
+ rx -= x_window;
+ ry -= y_window;
+ }
+
+ rx /= scale;
+ ry /= scale;
+
+ for (i = 0; i < n_areas; i++) {
+ rect = areas + i;
+ if (rx >= rect->x1 && rx <= rect->x2 &&
+ ry >= rect->y1 && ry <= rect->y2)
+ offset = i;
+ }
+
+ return offset;
+}
+
+static gint
+ev_view_accessible_get_n_selections (AtkText *text)
+{
+ GtkWidget *widget;
+ GtkTextBuffer *buffer;
+ GtkTextIter start, end;
+ gint select_start, select_end;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return -1;
+
+ buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget));
+ if (!buffer)
+ return -1;
+
+ gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
+ select_start = gtk_text_iter_get_offset (&start);
+ select_end = gtk_text_iter_get_offset (&end);
+
+ if (select_start != select_end)
+ return 1;
+ else
+ return 0;
+}
+
+static gchar*
+ev_view_accessible_get_selection (AtkText *text,
+ gint selection_num,
+ gint *start_pos,
+ gint *end_pos)
+{
+ GtkWidget *widget;
+ GtkTextBuffer *buffer;
+ GtkTextIter start, end;
+ gchar *retval = NULL;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return NULL;
+
+ if (selection_num != 0)
+ return NULL;
+
+ buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget));
+ if (!buffer)
+ return NULL;
+
+ gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
+ *start_pos = gtk_text_iter_get_offset (&start);
+ *end_pos = gtk_text_iter_get_offset (&end);
+
+ if (*start_pos != *end_pos)
+ retval = gtk_text_buffer_get_text (buffer, &start, &end, FALSE);
+
+ return retval;
+}
+
+static gboolean
+ev_view_accessible_add_selection (AtkText *text,
+ gint start_pos,
+ gint end_pos)
+{
+ GtkWidget *widget;
+ GtkTextBuffer *buffer;
+ GtkTextIter pos_itr;
+ GtkTextIter start, end;
+ gint select_start, select_end;
+ gboolean retval = FALSE;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return FALSE;
+
+ buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget));
+ if (!buffer)
+ return FALSE;
+
+ gtk_text_buffer_get_selection_bounds (buffer, &start, &end);
+ select_start = gtk_text_iter_get_offset (&start);
+ select_end = gtk_text_iter_get_offset (&end);
+
+ /* If there is already a selection, then don't allow
+ * another to be added
+ */
+ if (select_start == select_end) {
+ gtk_text_buffer_get_iter_at_offset (buffer, &pos_itr, start_pos);
+ gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &pos_itr);
+ gtk_text_buffer_get_iter_at_offset (buffer, &pos_itr, end_pos);
+ gtk_text_buffer_move_mark_by_name (buffer, "insert", &pos_itr);
+
+ retval = TRUE;
+ }
+
+ return retval;
+}
+
+static gboolean
+ev_view_accessible_remove_selection (AtkText *text,
+ gint selection_num)
+{
+ GtkWidget *widget;
+ GtkTextBuffer *buffer;
+ GtkTextMark *cursor_mark;
+ GtkTextIter cursor_itr;
+ GtkTextIter start, end;
+ gint select_start, select_end;
+ gboolean retval = FALSE;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return FALSE;
+
+ buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget));
+ if (!buffer)
+ return FALSE;
+
+ gtk_text_buffer_get_selection_bounds(buffer, &start, &end);
+ select_start = gtk_text_iter_get_offset(&start);
+ select_end = gtk_text_iter_get_offset(&end);
+
+ if (select_start != select_end) {
+ /* Setting the start & end of the selected region
+ * to the caret position turns off the selection.
+ */
+ cursor_mark = gtk_text_buffer_get_insert (buffer);
+ gtk_text_buffer_get_iter_at_mark (buffer, &cursor_itr, cursor_mark);
+ gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &cursor_itr);
+
+ retval = TRUE;
+ }
+
+ return retval;
+}
+
+static gboolean
+ev_view_accessible_set_selection (AtkText *text,
+ gint selection_num,
+ gint start_pos,
+ gint end_pos)
+{
+ GtkWidget *widget;
+ GtkTextBuffer *buffer;
+ GtkTextIter pos_itr;
+ GtkTextIter start, end;
+ gint select_start, select_end;
+ gboolean retval = FALSE;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
+ if (widget == NULL)
+ /* State is defunct */
+ return FALSE;
+
+ buffer = ev_view_accessible_get_text_buffer (EV_VIEW_ACCESSIBLE (text), EV_VIEW (widget));
+ if (!buffer)
+ return FALSE;
+
+ gtk_text_buffer_get_selection_bounds(buffer, &start, &end);
+ select_start = gtk_text_iter_get_offset(&start);
+ select_end = gtk_text_iter_get_offset(&end);
+
+ if (select_start != select_end) {
+ gtk_text_buffer_get_iter_at_offset (buffer, &pos_itr, start_pos);
+ gtk_text_buffer_move_mark_by_name (buffer, "selection_bound", &pos_itr);
+ gtk_text_buffer_get_iter_at_offset (buffer, &pos_itr, end_pos);
+ gtk_text_buffer_move_mark_by_name (buffer, "insert", &pos_itr);
+
+ retval = TRUE;
+ }
+
+ return retval;
+}
+
+static void ev_view_accessible_text_iface_init (AtkTextIface * iface)
+{
+ g_return_if_fail (iface != NULL);
+
+ iface->get_text = ev_view_accessible_get_text;
+ iface->get_character_at_offset = ev_view_accessible_get_character_at_offset;
+ iface->get_text_before_offset = ev_view_accessible_get_text_before_offset;
+ iface->get_text_at_offset = ev_view_accessible_get_text_at_offset;
+ iface->get_text_after_offset = ev_view_accessible_get_text_after_offset;
+ iface->get_caret_offset = ev_view_accessible_get_caret_offset;
+ iface->set_caret_offset = ev_view_accessible_set_caret_offset;
+ iface->get_character_count = ev_view_accessible_get_character_count;
+ iface->get_n_selections = ev_view_accessible_get_n_selections;
+ iface->get_selection = ev_view_accessible_get_selection;
+ iface->add_selection = ev_view_accessible_add_selection;
+ iface->remove_selection = ev_view_accessible_remove_selection;
+ iface->set_selection = ev_view_accessible_set_selection;
+ iface->get_run_attributes = ev_view_accessible_get_run_attributes;
+ iface->get_default_attributes = ev_view_accessible_get_default_attributes;
+ iface->get_character_extents = ev_view_accessible_get_character_extents;
+ iface->get_offset_at_point = ev_view_accessible_get_offset_at_point;
+ return;
+}
+
+static gboolean
+ev_view_accessible_idle_do_action (gpointer data)
+{
+ EvViewAccessiblePriv* priv = EV_VIEW_ACCESSIBLE_GET_PRIVATE (data);
+
+ ev_view_scroll (EV_VIEW (gtk_accessible_get_widget (GTK_ACCESSIBLE (data))),
+ priv->idle_scroll,
+ FALSE);
+ priv->action_idle_handler = 0;
+ return FALSE;
+}
+
+static gboolean
+ev_view_accessible_action_do_action (AtkAction *action,
+ gint i)
+{
+ EvViewAccessiblePriv* priv = EV_VIEW_ACCESSIBLE_GET_PRIVATE (action);
+
+ if (gtk_accessible_get_widget (GTK_ACCESSIBLE (action)) == NULL)
+ return FALSE;
+
+ if (priv->action_idle_handler)
+ return FALSE;
+
+ switch (i) {
+ case ACTION_SCROLL_UP:
+ priv->idle_scroll = GTK_SCROLL_PAGE_BACKWARD;
+ break;
+ case ACTION_SCROLL_DOWN:
+ priv->idle_scroll = GTK_SCROLL_PAGE_FORWARD;
+ break;
+ default:
+ return FALSE;
+ }
+ priv->action_idle_handler = g_idle_add (ev_view_accessible_idle_do_action,
+ action);
+ return TRUE;
+}
+
+static gint
+ev_view_accessible_action_get_n_actions (AtkAction *action)
+{
+ return LAST_ACTION;
+}
+
+static const gchar *
+ev_view_accessible_action_get_description (AtkAction *action,
+ gint i)
+{
+ EvViewAccessiblePriv* priv = EV_VIEW_ACCESSIBLE_GET_PRIVATE (action);
+
+ if (i < 0 || i >= LAST_ACTION)
+ return NULL;
+
+ if (priv->action_descriptions[i])
+ return priv->action_descriptions[i];
+ else
+ return ev_view_accessible_action_descriptions[i];
+}
+
+static const gchar *
+ev_view_accessible_action_get_name (AtkAction *action,
+ gint i)
+{
+ if (i < 0 || i >= LAST_ACTION)
+ return NULL;
+
+ return ev_view_accessible_action_names[i];
+}
+
+static gboolean
+ev_view_accessible_action_set_description (AtkAction *action,
+ gint i,
+ const gchar *description)
+{
+ EvViewAccessiblePriv* priv = EV_VIEW_ACCESSIBLE_GET_PRIVATE (action);
+ gchar *old_description;
+
+ if (i < 0 || i >= LAST_ACTION)
+ return FALSE;
+
+ old_description = priv->action_descriptions[i];
+ priv->action_descriptions[i] = g_strdup (description);
+ g_free (old_description);
+
+ return TRUE;
+}
+
+static void ev_view_accessible_action_iface_init (AtkActionIface * iface)
+{
+ iface->do_action = ev_view_accessible_action_do_action;
+ iface->get_n_actions = ev_view_accessible_action_get_n_actions;
+ iface->get_description = ev_view_accessible_action_get_description;
+ iface->get_name = ev_view_accessible_action_get_name;
+ iface->set_description = ev_view_accessible_action_set_description;
+}
+
+GType ev_view_accessible_get_type (void)
+{
+ static GType type = 0;
+
+ if (G_UNLIKELY (type == 0)) {
+ GTypeInfo tinfo = {
+ 0, /* class size */
+ (GBaseInitFunc) NULL, /* base init */
+ (GBaseFinalizeFunc) NULL, /* base finalize */
+ (GClassInitFunc) ev_view_accessible_class_init, /* class init */
+ (GClassFinalizeFunc) NULL, /* class finalize */
+ NULL, /* class data */
+ 0, /* instance size */
+ 0, /* nb preallocs */
+ (GInstanceInitFunc) NULL, /* instance init */
+ NULL /* value table */
+ };
+
+ const GInterfaceInfo atk_text_info = {
+ (GInterfaceInitFunc)
+ ev_view_accessible_text_iface_init,
+ (GInterfaceFinalizeFunc) NULL,
+ NULL
+ };
+
+ const GInterfaceInfo atk_action_info = {
+ (GInterfaceInitFunc)
+ ev_view_accessible_action_iface_init,
+ (GInterfaceFinalizeFunc) NULL,
+ NULL
+ };
+ /*
+ * Figure out the size of the class and instance
+ * we are deriving from
+ */
+ AtkObjectFactory *factory;
+ GType derived_type;
+ GTypeQuery query;
+ GType derived_atk_type;
+
+ derived_type = g_type_parent (EV_TYPE_VIEW);
+ factory = atk_registry_get_factory (atk_get_default_registry (),
+ derived_type);
+ derived_atk_type = atk_object_factory_get_accessible_type (factory);
+
+ g_type_query (derived_atk_type, &query);
+ tinfo.class_size = query.class_size;
+ tinfo.instance_size = query.instance_size;
+
+ type = g_type_register_static (derived_atk_type, "EvViewAccessible",
+ &tinfo, 0);
+ g_type_add_interface_static (type, ATK_TYPE_TEXT,
+ &atk_text_info);
+ g_type_add_interface_static (type, ATK_TYPE_ACTION,
+ &atk_action_info);
+ }
+
+ return type;
+}
+
+static AtkObject *ev_view_accessible_new(GObject * obj)
+{
+ AtkObject *accessible;
+
+ g_return_val_if_fail(EV_IS_VIEW (obj), NULL);
+
+ accessible = g_object_new (ev_view_accessible_get_type (), NULL);
+ atk_object_initialize (accessible, obj);
+
+ atk_object_set_name (ATK_OBJECT (accessible), _("Document View"));
+ atk_object_set_role (ATK_OBJECT (accessible), ATK_ROLE_UNKNOWN);
+
+ return accessible;
+}
+
+typedef AtkObjectFactory EvViewAccessibleFactory;
+typedef AtkObjectFactoryClass EvViewAccessibleFactoryClass;
+
+static void ev_view_accessible_factory_init (EvViewAccessibleFactory *factory)
+{
+}
+
+static GType ev_view_accessible_factory_get_accessible_type(void)
+{
+ return ev_view_accessible_get_type();
+}
+
+static AtkObject *ev_view_accessible_factory_create_accessible (GObject * obj)
+{
+ return ev_view_accessible_new(obj);
+}
+
+static void ev_view_accessible_factory_class_init (AtkObjectFactoryClass * klass)
+{
+ klass->create_accessible = ev_view_accessible_factory_create_accessible;
+ klass->get_accessible_type = ev_view_accessible_factory_get_accessible_type;
+}
+
+G_DEFINE_TYPE (EvViewAccessibleFactory, ev_view_accessible_factory, ATK_TYPE_OBJECT_FACTORY)