/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; c-indent-level: 8 -*- */ /* this file is part of atril, a mate document viewer * * Copyright (C) 2004 Red Hat, Inc * * Atril 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. * * Atril 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 #include #include #include #include #include "ev-selection.h" #include "ev-page-cache.h" #include "ev-view-accessible.h" #include "ev-link-accessible.h" #include "ev-view-private.h" static void ev_view_accessible_text_iface_init (AtkTextIface *iface); static void ev_view_accessible_action_iface_init (AtkActionIface *iface); static void ev_view_accessible_hypertext_iface_init (AtkHypertextIface *iface); 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 }; struct _EvViewAccessiblePrivate { guint current_page; /* AtkAction */ gchar *action_descriptions[LAST_ACTION]; guint action_idle_handler; GtkScrollType idle_scroll; /* AtkText */ GtkTextBuffer *buffer; /* AtkHypertext */ GHashTable *links; }; G_DEFINE_TYPE_WITH_CODE (EvViewAccessible, ev_view_accessible, GTK_TYPE_CONTAINER_ACCESSIBLE, G_IMPLEMENT_INTERFACE (ATK_TYPE_TEXT, ev_view_accessible_text_iface_init) G_IMPLEMENT_INTERFACE (ATK_TYPE_ACTION, ev_view_accessible_action_iface_init) G_IMPLEMENT_INTERFACE (ATK_TYPE_HYPERTEXT, ev_view_accessible_hypertext_iface_init) ) static void ev_view_accessible_finalize (GObject *object) { EvViewAccessiblePrivate *priv = EV_VIEW_ACCESSIBLE (object)->priv; 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); if (priv->links) g_hash_table_destroy (priv->links); G_OBJECT_CLASS (ev_view_accessible_parent_class)->finalize (object); } static void ev_view_accessible_initialize (AtkObject *obj, gpointer data) { if (ATK_OBJECT_CLASS (ev_view_accessible_parent_class)->initialize != NULL) ATK_OBJECT_CLASS (ev_view_accessible_parent_class)->initialize (obj, data); gtk_accessible_set_widget (GTK_ACCESSIBLE (obj), GTK_WIDGET (data)); atk_object_set_name (obj, _("Document View")); atk_object_set_role (obj, ATK_ROLE_DOCUMENT_FRAME); } static void ev_view_accessible_class_init (EvViewAccessibleClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); AtkObjectClass *atk_class = ATK_OBJECT_CLASS (klass); object_class->finalize = ev_view_accessible_finalize; atk_class->initialize = ev_view_accessible_initialize; g_type_class_add_private (klass, sizeof (EvViewAccessiblePrivate)); } static void ev_view_accessible_init (EvViewAccessible *accessible) { accessible->priv = G_TYPE_INSTANCE_GET_PRIVATE (accessible, EV_TYPE_VIEW_ACCESSIBLE, EvViewAccessiblePrivate); } static GtkTextBuffer * ev_view_accessible_get_text_buffer (EvViewAccessible *accessible, EvView *view) { EvPageCache *page_cache; const gchar *retval = NULL; EvViewAccessiblePrivate* priv = accessible->priv; 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); if (retval) 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_for_offset (EvViewAccessible *view_accessible, gint offset, GailOffsetType offset_type, AtkTextBoundary boundary_type, gint *start_offset, gint *end_offset) { GtkWidget *widget; GtkTextBuffer *buffer; GailTextUtil *gail_text; gchar *retval; widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (view_accessible)); if (widget == NULL) /* State is defunct */ return NULL; buffer = ev_view_accessible_get_text_buffer (view_accessible, 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, NULL, offset_type, boundary_type, offset, start_offset, end_offset); g_object_unref (gail_text); return retval; } static gchar * ev_view_accessible_get_text_before_offset (AtkText *text, gint offset, AtkTextBoundary boundary_type, gint *start_offset, gint *end_offset) { return ev_view_accessible_get_text_for_offset (EV_VIEW_ACCESSIBLE (text), offset, GAIL_BEFORE_OFFSET, boundary_type, start_offset, end_offset); } static gchar * ev_view_accessible_get_text_at_offset (AtkText *text, gint offset, AtkTextBoundary boundary_type, gint *start_offset, gint *end_offset) { return ev_view_accessible_get_text_for_offset (EV_VIEW_ACCESSIBLE (text), offset, GAIL_AT_OFFSET, boundary_type, start_offset, end_offset); } static gchar * ev_view_accessible_get_text_after_offset (AtkText *text, gint offset, AtkTextBoundary boundary_type, gint *start_offset, gint *end_offset) { return ev_view_accessible_get_text_for_offset (EV_VIEW_ACCESSIBLE (text), offset, GAIL_AFTER_OFFSET, boundary_type, start_offset, end_offset); } 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; EvView *view; EvRectangle *areas = NULL; EvRectangle *doc_rect; guint n_areas = 0; gint x_widget, y_widget; GdkRectangle view_rect; widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text)); if (widget == NULL) /* State is defunct */ return; view = EV_VIEW (widget); if (!view->page_cache) return; ev_page_cache_get_text_layout (view->page_cache, view->current_page, &areas, &n_areas); if (!areas || offset >= n_areas) return; doc_rect = areas + offset; _ev_view_transform_doc_rect_to_view_rect (view, view->current_page, doc_rect, &view_rect); view_rect.x -= view->scroll_x; view_rect.y -= view->scroll_y; toplevel = gtk_widget_get_toplevel (widget); gtk_widget_translate_coordinates (widget, toplevel, 0, 0, &x_widget, &y_widget); view_rect.x += x_widget; view_rect.y += y_widget; if (coords == ATK_XY_SCREEN) { gint x_window, y_window; gdk_window_get_origin (gtk_widget_get_window (toplevel), &x_window, &y_window); view_rect.x += x_window; view_rect.y += y_window; } *x = view_rect.x; *y = view_rect.y; *width = view_rect.width; *height = view_rect.height; } static gint ev_view_accessible_get_offset_at_point (AtkText *text, gint x, gint y, AtkCoordType coords) { GtkWidget *widget, *toplevel; EvView *view; EvRectangle *areas = NULL; EvRectangle *rect = NULL; guint n_areas = 0; guint i; gint x_widget, y_widget; gint offset=-1; GdkPoint view_point; gdouble doc_x, doc_y; GtkBorder border; GdkRectangle page_area; widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text)); if (widget == NULL) /* State is defunct */ return -1; view = EV_VIEW (widget); if (!view->page_cache) return -1; ev_page_cache_get_text_layout (view->page_cache, view->current_page, &areas, &n_areas); if (!areas) return -1; view_point.x = x; view_point.y = y; toplevel = gtk_widget_get_toplevel (widget); gtk_widget_translate_coordinates (widget, toplevel, 0, 0, &x_widget, &y_widget); view_point.x -= x_widget; view_point.y -= y_widget; if (coords == ATK_XY_SCREEN) { gint x_window, y_window; gdk_window_get_origin (gtk_widget_get_window (toplevel), &x_window, &y_window); view_point.x -= x_window; view_point.y -= y_window; } ev_view_get_page_extents (view, view->current_page, &page_area, &border); _ev_view_transform_view_point_to_doc_point (view, &view_point, &page_area, &doc_x, &doc_y); for (i = 0; i < n_areas; i++) { rect = areas + i; if (doc_x >= rect->x1 && doc_x <= rect->x2 && doc_y >= rect->y1 && doc_y <= 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) { 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; } static gboolean ev_view_accessible_idle_do_action (gpointer data) { EvViewAccessiblePrivate* priv = EV_VIEW_ACCESSIBLE (data)->priv; 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) { EvViewAccessiblePrivate* priv = EV_VIEW_ACCESSIBLE (action)->priv; 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) { EvViewAccessiblePrivate* priv = EV_VIEW_ACCESSIBLE (action)->priv; 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) { EvViewAccessiblePrivate* priv = EV_VIEW_ACCESSIBLE (action)->priv; 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; } static GHashTable * ev_view_accessible_get_links (EvViewAccessible *accessible, EvView *view) { EvViewAccessiblePrivate* priv = accessible->priv; if (view->current_page == priv->current_page && priv->links) return priv->links; priv->current_page = view->current_page; if (priv->links) g_hash_table_destroy (priv->links); priv->links = g_hash_table_new_full (g_direct_hash, g_direct_equal, NULL, (GDestroyNotify)g_object_unref); return priv->links; } static AtkHyperlink * ev_view_accessible_get_link (AtkHypertext *hypertext, gint link_index) { GtkWidget *widget; EvView *view; GHashTable *links; EvMappingList *link_mapping; gint n_links; EvMapping *mapping; EvLinkAccessible *atk_link; widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (hypertext)); if (widget == NULL) /* State is defunct */ return NULL; view = EV_VIEW (widget); if (!EV_IS_DOCUMENT_LINKS (view->document)) return NULL; links = ev_view_accessible_get_links (EV_VIEW_ACCESSIBLE (hypertext), view); atk_link = g_hash_table_lookup (links, GINT_TO_POINTER (link_index)); if (atk_link) return atk_hyperlink_impl_get_hyperlink (ATK_HYPERLINK_IMPL (atk_link)); link_mapping = ev_page_cache_get_link_mapping (view->page_cache, view->current_page); if (!link_mapping) return NULL; n_links = ev_mapping_list_length (link_mapping); mapping = ev_mapping_list_nth (link_mapping, n_links - link_index - 1); atk_link = ev_link_accessible_new (EV_VIEW_ACCESSIBLE (hypertext), EV_LINK (mapping->data), &mapping->area); g_hash_table_insert (links, GINT_TO_POINTER (link_index), atk_link); return atk_hyperlink_impl_get_hyperlink (ATK_HYPERLINK_IMPL (atk_link)); } static gint ev_view_accessible_get_n_links (AtkHypertext *hypertext) { GtkWidget *widget; EvView *view; EvMappingList *link_mapping; widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (hypertext)); if (widget == NULL) /* State is defunct */ return 0; view = EV_VIEW (widget); if (!EV_IS_DOCUMENT_LINKS (view->document)) return 0; link_mapping = ev_page_cache_get_link_mapping (view->page_cache, view->current_page); return link_mapping ? ev_mapping_list_length (link_mapping) : 0; } static gint ev_view_accessible_get_link_index (AtkHypertext *hypertext, gint offset) { guint i; for (i = 0; i < ev_view_accessible_get_n_links (hypertext); i++) { AtkHyperlink *hyperlink; gint start_index, end_index; hyperlink = ev_view_accessible_get_link (hypertext, i); start_index = atk_hyperlink_get_start_index (hyperlink); end_index = atk_hyperlink_get_end_index (hyperlink); if (start_index <= offset && end_index >= offset) return i; } return -1; } static void ev_view_accessible_hypertext_iface_init (AtkHypertextIface *iface) { iface->get_link = ev_view_accessible_get_link; iface->get_n_links = ev_view_accessible_get_n_links; iface->get_link_index = ev_view_accessible_get_link_index; } AtkObject * ev_view_accessible_new (GtkWidget *widget) { AtkObject *accessible; g_return_val_if_fail (EV_IS_VIEW (widget), NULL); accessible = g_object_new (EV_TYPE_VIEW_ACCESSIBLE, NULL); atk_object_initialize (accessible, widget); return accessible; }