+ if (forms_mapping)
+ return ev_form_field_mapping_find (forms_mapping, x_new, y_new);
+ else
+ return NULL;
+}
+
+static GdkRegion *
+ev_view_form_field_get_region (EvView *view,
+ EvFormField *field)
+{
+ EvRectangle field_area;
+ GdkRectangle view_area;
+ GList *forms_mapping;
+
+ forms_mapping = ev_pixbuf_cache_get_form_field_mapping (view->pixbuf_cache,
+ field->page->index);
+ ev_form_field_mapping_get_area (forms_mapping, field, &field_area);
+ doc_rect_to_view_rect (view, field->page->index, &field_area, &view_area);
+ view_area.x -= view->scroll_x;
+ view_area.y -= view->scroll_y;
+
+ return gdk_region_rectangle (&view_area);
+}
+
+static gboolean
+ev_view_forms_remove_widgets (EvView *view)
+{
+ ev_view_remove_all (view);
+
+ return FALSE;
+}
+
+static void
+ev_view_form_field_destroy (GtkWidget *widget,
+ EvView *view)
+{
+ g_idle_add ((GSourceFunc)ev_view_forms_remove_widgets, view);
+}
+
+static GtkWidget *
+ev_view_form_field_button_create_widget (EvView *view,
+ EvFormField *field)
+{
+ EvFormFieldButton *field_button = EV_FORM_FIELD_BUTTON (field);
+ GdkRegion *field_region = NULL;
+
+ switch (field_button->type) {
+ case EV_FORM_FIELD_BUTTON_PUSH:
+ return NULL;
+ case EV_FORM_FIELD_BUTTON_CHECK:
+ case EV_FORM_FIELD_BUTTON_RADIO: {
+ gboolean state;
+ GList *forms_mapping, *l;
+
+ state = ev_document_forms_form_field_button_get_state (EV_DOCUMENT_FORMS (view->document),
+ field);
+
+ /* FIXME: it actually depends on NoToggleToOff flags */
+ if (field_button->type == EV_FORM_FIELD_BUTTON_RADIO &&
+ state && field_button->state)
+ return NULL;
+
+ field_region = ev_view_form_field_get_region (view, field);
+
+ /* For radio buttons and checkbox buttons that are in a set
+ * we need to update also the region for the current selected item
+ */
+ forms_mapping = ev_pixbuf_cache_get_form_field_mapping (view->pixbuf_cache,
+ field->page->index);
+ for (l = forms_mapping; l; l = g_list_next (l)) {
+ EvFormField *button = ((EvFormFieldMapping *)(l->data))->field;
+ GdkRegion *button_region;
+
+ if (button->id == field->id)
+ continue;
+
+ /* FIXME: only buttons in the same group should be updated */
+ if (!EV_IS_FORM_FIELD_BUTTON (button) ||
+ EV_FORM_FIELD_BUTTON (button)->type != field_button->type ||
+ EV_FORM_FIELD_BUTTON (button)->state != TRUE)
+ continue;
+
+ button_region = ev_view_form_field_get_region (view, button);
+ gdk_region_union (field_region, button_region);
+ gdk_region_destroy (button_region);
+ }
+
+ ev_document_forms_form_field_button_set_state (EV_DOCUMENT_FORMS (view->document),
+ field, !state);
+ field_button->state = !state;
+ }
+ break;
+ }
+
+ ev_pixbuf_cache_reload_page (view->pixbuf_cache,
+ field_region,
+ field->page->index,
+ view->rotation,
+ view->scale);
+ gdk_region_destroy (field_region);
+
+ return NULL;
+}
+
+static void
+ev_view_form_field_text_save (EvView *view,
+ GtkWidget *widget)
+{
+ EvFormField *field;
+
+ if (!view->document)
+ return;
+
+ field = g_object_get_data (G_OBJECT (widget), "form-field");
+
+ if (field->changed) {
+ EvFormFieldText *field_text = EV_FORM_FIELD_TEXT (field);
+ GdkRegion *field_region;
+
+ field_region = ev_view_form_field_get_region (view, field);
+
+ ev_document_forms_form_field_text_set_text (EV_DOCUMENT_FORMS (view->document),
+ field, field_text->text);
+ field->changed = FALSE;
+ ev_pixbuf_cache_reload_page (view->pixbuf_cache,
+ field_region,
+ field->page->index,
+ view->rotation,
+ view->scale);
+ gdk_region_destroy (field_region);
+ }
+}
+
+static void
+ev_view_form_field_text_changed (GtkWidget *widget,
+ EvFormField *field)
+{
+ EvFormFieldText *field_text = EV_FORM_FIELD_TEXT (field);
+ gchar *text = NULL;
+
+ if (GTK_IS_ENTRY (widget)) {
+ text = g_strdup (gtk_entry_get_text (GTK_ENTRY (widget)));
+ } else if (GTK_IS_TEXT_BUFFER (widget)) {
+ GtkTextIter start, end;
+
+ gtk_text_buffer_get_bounds (GTK_TEXT_BUFFER (widget), &start, &end);
+ text = gtk_text_buffer_get_text (GTK_TEXT_BUFFER (widget),
+ &start, &end, FALSE);
+ }
+
+ if (!field_text->text ||
+ (field_text->text && g_ascii_strcasecmp (field_text->text, text) != 0)) {
+ g_free (field_text->text);
+ field_text->text = text;
+ field->changed = TRUE;
+ }
+}
+
+static GtkWidget *
+ev_view_form_field_text_create_widget (EvView *view,
+ EvFormField *field)
+{
+ EvFormFieldText *field_text = EV_FORM_FIELD_TEXT (field);
+ GtkWidget *text = NULL;
+ gchar *txt;
+
+ txt = ev_document_forms_form_field_text_get_text (EV_DOCUMENT_FORMS (view->document),
+ field);
+
+ switch (field_text->type) {
+ case EV_FORM_FIELD_TEXT_FILE_SELECT:
+ /* TODO */
+ case EV_FORM_FIELD_TEXT_NORMAL:
+ text = gtk_entry_new ();
+ gtk_entry_set_has_frame (GTK_ENTRY (text), FALSE);
+ gtk_entry_set_max_length (GTK_ENTRY (text), field_text->max_len);
+ gtk_entry_set_visibility (GTK_ENTRY (text), !field_text->is_password);
+
+ if (txt) {
+ gtk_entry_set_text (GTK_ENTRY (text), txt);
+ g_free (txt);
+ }
+
+ g_signal_connect (G_OBJECT (text), "changed",
+ G_CALLBACK (ev_view_form_field_text_changed),
+ field);
+ g_signal_connect_after (G_OBJECT (text), "activate",
+ G_CALLBACK (ev_view_form_field_destroy),
+ view);
+ break;
+ case EV_FORM_FIELD_TEXT_MULTILINE: {
+ GtkTextBuffer *buffer;
+
+ text = gtk_text_view_new ();
+ buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (text));
+
+ if (txt) {
+ gtk_text_buffer_set_text (buffer, txt, -1);
+ g_free (txt);
+ }
+
+ g_signal_connect (G_OBJECT (buffer), "changed",
+ G_CALLBACK (ev_view_form_field_text_changed),
+ field);
+ }
+ break;
+ }
+
+ g_object_weak_ref (G_OBJECT (text),
+ (GWeakNotify)ev_view_form_field_text_save,
+ view);
+
+ return text;
+}
+
+static void
+ev_view_form_field_choice_save (EvView *view,
+ GtkWidget *widget)
+{
+ EvFormField *field;
+
+ if (!view->document)
+ return;
+
+ field = g_object_get_data (G_OBJECT (widget), "form-field");
+
+ if (field->changed) {
+ GList *l;
+ EvFormFieldChoice *field_choice = EV_FORM_FIELD_CHOICE (field);
+ GdkRegion *field_region;
+
+ field_region = ev_view_form_field_get_region (view, field);
+
+ if (field_choice->is_editable) {
+ ev_document_forms_form_field_choice_set_text (EV_DOCUMENT_FORMS (view->document),
+ field, field_choice->text);
+ } else {
+ ev_document_forms_form_field_choice_unselect_all (EV_DOCUMENT_FORMS (view->document), field);
+ for (l = field_choice->selected_items; l; l = g_list_next (l)) {
+ ev_document_forms_form_field_choice_select_item (EV_DOCUMENT_FORMS (view->document),
+ field,
+ GPOINTER_TO_INT (l->data));
+ }
+ }
+ field->changed = FALSE;
+ ev_pixbuf_cache_reload_page (view->pixbuf_cache,
+ field_region,
+ field->page->index,
+ view->rotation,
+ view->scale);
+ gdk_region_destroy (field_region);
+ }
+}
+
+static void
+ev_view_form_field_choice_changed (GtkWidget *widget,
+ EvFormField *field)
+{
+ EvFormFieldChoice *field_choice = EV_FORM_FIELD_CHOICE (field);
+
+ if (GTK_IS_COMBO_BOX (widget)) {
+ gint item;
+
+ item = gtk_combo_box_get_active (GTK_COMBO_BOX (widget));
+ if (!field_choice->selected_items ||
+ GPOINTER_TO_INT (field_choice->selected_items->data) != item) {
+ g_list_free (field_choice->selected_items);
+ field_choice->selected_items = NULL;
+ field_choice->selected_items = g_list_prepend (field_choice->selected_items,
+ GINT_TO_POINTER (item));
+ field->changed = TRUE;
+ }
+
+ if (GTK_IS_COMBO_BOX_ENTRY (widget)) {
+ gchar *text;
+
+ text = gtk_combo_box_get_active_text (GTK_COMBO_BOX (widget));
+ if (!field_choice->text ||
+ (field_choice->text && g_ascii_strcasecmp (field_choice->text, text) != 0)) {
+ g_free (field_choice->text);
+ field_choice->text = text;
+ field->changed = TRUE;
+ }
+ }
+ } else if (GTK_IS_TREE_SELECTION (widget)) {
+ GtkTreeSelection *selection = GTK_TREE_SELECTION (widget);
+ GtkTreeModel *model;
+ GList *items, *l;
+
+ items = gtk_tree_selection_get_selected_rows (selection, &model);
+ g_list_free (field_choice->selected_items);
+ field_choice->selected_items = NULL;
+
+ for (l = items; l && l->data; l = g_list_next (l)) {
+ GtkTreeIter iter;
+ GtkTreePath *path = (GtkTreePath *)l->data;
+ gint item;
+
+ gtk_tree_model_get_iter (model, &iter, path);
+ gtk_tree_model_get (model, &iter, 1, &item, -1);
+
+ field_choice->selected_items = g_list_prepend (field_choice->selected_items,
+ GINT_TO_POINTER (item));
+
+ gtk_tree_path_free (path);
+ }
+
+ g_list_free (items);
+
+ field->changed = TRUE;
+ }
+}
+
+static GtkWidget *
+ev_view_form_field_choice_create_widget (EvView *view,
+ EvFormField *field)
+{
+ EvFormFieldChoice *field_choice = EV_FORM_FIELD_CHOICE (field);
+ GtkWidget *choice;
+ GtkTreeModel *model;
+ gint n_items, i;
+ gint selected_item = 0;
+
+ n_items = ev_document_forms_form_field_choice_get_n_items (EV_DOCUMENT_FORMS (view->document),
+ field);
+ model = GTK_TREE_MODEL (gtk_list_store_new (2, G_TYPE_STRING, G_TYPE_INT));
+ for (i = 0; i < n_items; i++) {
+ GtkTreeIter iter;
+ gchar *item;
+
+ item = ev_document_forms_form_field_choice_get_item (EV_DOCUMENT_FORMS (view->document),
+ field, i);
+ if (ev_document_forms_form_field_choice_is_item_selected (
+ EV_DOCUMENT_FORMS (view->document), field, i)) {
+ selected_item = i;
+ /* FIXME: we need a get_selected_items function in poppler */
+ field_choice->selected_items = g_list_prepend (field_choice->selected_items,
+ GINT_TO_POINTER (i));
+ }
+
+ if (item) {
+ gtk_list_store_append (GTK_LIST_STORE (model), &iter);
+ gtk_list_store_set (GTK_LIST_STORE (model), &iter,
+ 0, item,
+ 1, i,
+ -1);
+ g_free (item);
+ }
+ }
+
+ if (field_choice->type == EV_FORM_FIELD_CHOICE_LIST) {
+ GtkCellRenderer *renderer;
+ GtkWidget *tree_view;
+ GtkTreeSelection *selection;
+
+ tree_view = gtk_tree_view_new_with_model (model);
+ gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (tree_view), FALSE);
+
+ selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (tree_view));
+ if (field_choice->multi_select) {
+ gtk_tree_selection_set_mode (selection, GTK_SELECTION_MULTIPLE);
+ }
+
+ /* TODO: set selected items */
+
+ renderer = gtk_cell_renderer_text_new ();
+ gtk_tree_view_insert_column_with_attributes (GTK_TREE_VIEW (tree_view),
+ 0,
+ "choix", renderer,
+ "text", 0,
+ NULL);
+
+ choice = gtk_scrolled_window_new (NULL, NULL);
+ gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (choice),
+ GTK_POLICY_AUTOMATIC,
+ GTK_POLICY_AUTOMATIC);
+ gtk_container_add (GTK_CONTAINER (choice), tree_view);
+ gtk_widget_show (tree_view);
+
+ g_signal_connect (G_OBJECT (selection), "changed",
+ G_CALLBACK (ev_view_form_field_choice_changed),
+ field);
+ g_signal_connect_after (G_OBJECT (selection), "changed",
+ G_CALLBACK (ev_view_form_field_destroy),
+ view);
+ } else if (field_choice->is_editable) { /* ComboBoxEntry */
+ gchar *text;
+
+ choice = gtk_combo_box_entry_new_with_model (model, 0);
+ text = ev_document_forms_form_field_choice_get_text (EV_DOCUMENT_FORMS (view->document), field);
+ if (text) {
+ gtk_entry_set_text (GTK_ENTRY (gtk_bin_get_child (GTK_BIN (choice))), text);
+ g_free (text);
+ }
+
+ g_signal_connect (G_OBJECT (choice), "changed",
+ G_CALLBACK (ev_view_form_field_choice_changed),
+ field);
+ g_signal_connect_after (G_OBJECT (GTK_BIN (choice)->child), "activate",
+ G_CALLBACK (ev_view_form_field_destroy),
+ view);
+ } else { /* ComboBoxText */
+ GtkCellRenderer *renderer;
+
+ choice = gtk_combo_box_new_with_model (model);
+ renderer = gtk_cell_renderer_text_new ();
+ gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (choice),
+ renderer, TRUE);
+ gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (choice),
+ renderer,
+ "text", 0,
+ NULL);
+ gtk_combo_box_set_active (GTK_COMBO_BOX (choice), selected_item);
+ gtk_combo_box_popup (GTK_COMBO_BOX (choice));
+
+ g_signal_connect (G_OBJECT (choice), "changed",
+ G_CALLBACK (ev_view_form_field_choice_changed),
+ field);
+ g_signal_connect_after (G_OBJECT (choice), "changed",
+ G_CALLBACK (ev_view_form_field_destroy),
+ view);
+ }
+
+ g_object_unref (model);
+
+ g_object_weak_ref (G_OBJECT (choice),
+ (GWeakNotify)ev_view_form_field_choice_save,
+ view);
+
+ return choice;
+}
+
+static void
+ev_view_handle_form_field (EvView *view,
+ EvFormField *field,
+ gdouble x,
+ gdouble y)
+{
+ GtkWidget *field_widget = NULL;
+ GList *form_field_mapping;
+ EvRectangle field_area;
+ GdkRectangle view_area;
+
+ if (field->is_read_only)
+ return;
+
+ if (EV_IS_FORM_FIELD_BUTTON (field)) {
+ field_widget = ev_view_form_field_button_create_widget (view, field);
+ } else if (EV_IS_FORM_FIELD_TEXT (field)) {
+ field_widget = ev_view_form_field_text_create_widget (view, field);
+ } else if (EV_IS_FORM_FIELD_CHOICE (field)) {
+ field_widget = ev_view_form_field_choice_create_widget (view, field);
+ } else if (EV_IS_FORM_FIELD_SIGNATURE (field)) {
+ /* TODO */
+ }
+
+ /* Form field doesn't require a widget */
+ if (!field_widget)
+ return;
+
+ g_object_set_data_full (G_OBJECT (field_widget), "form-field",
+ g_object_ref (field),
+ (GDestroyNotify)g_object_unref);
+
+ form_field_mapping = ev_pixbuf_cache_get_form_field_mapping (view->pixbuf_cache, field->page->index);
+ ev_form_field_mapping_get_area (form_field_mapping, field, &field_area);
+
+ doc_rect_to_view_rect (view, field->page->index, &field_area, &view_area);
+ view_area.x -= view->scroll_x;
+ view_area.y -= view->scroll_y;
+
+ gtk_layout_put (GTK_LAYOUT (view), field_widget, view_area.x, view_area.y);
+ gtk_widget_show (field_widget);
+ gtk_widget_grab_focus (field_widget);
+}
+
+/*** GtkWidget implementation ***/
+
+static void
+ev_view_size_request_continuous_dual_page (EvView *view,
+ GtkRequisition *requisition)
+{
+ int max_width;
+ gint n_pages;
+ GtkBorder border;
+
+ ev_page_cache_get_max_width (view->page_cache, view->rotation,
+ view->scale, &max_width);
+ compute_border (view, max_width, max_width, &border);
+
+ n_pages = ev_page_cache_get_n_pages (view->page_cache) + 1;
+
+ requisition->width = (max_width + border.left + border.right) * 2 + (view->spacing * 3);
+ get_page_y_offset (view, n_pages, view->scale, &requisition->height);
+
+ if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
+ requisition->width = 1;
+ } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
+ requisition->width = 1;
+ /* FIXME: This could actually be set on one page docs or docs
+ * with a strange aspect ratio. */
+ /* requisition->height = 1;*/
+ }
+}
+
+static void
+ev_view_size_request_continuous (EvView *view,
+ GtkRequisition *requisition)
+{
+ int max_width;
+ int n_pages;
+ GtkBorder border;
+
+
+ ev_page_cache_get_max_width (view->page_cache, view->rotation,
+ view->scale, &max_width);
+ n_pages = ev_page_cache_get_n_pages (view->page_cache);
+ compute_border (view, max_width, max_width, &border);
+
+ requisition->width = max_width + (view->spacing * 2) + border.left + border.right;
+ get_page_y_offset (view, n_pages, view->scale, &requisition->height);
+
+ if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
+ requisition->width = 1;
+ } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
+ requisition->width = 1;
+ /* FIXME: This could actually be set on one page docs or docs
+ * with a strange aspect ratio. */
+ /* requisition->height = 1;*/
+ }
+}
+
+static void
+ev_view_size_request_dual_page (EvView *view,
+ GtkRequisition *requisition)
+{
+ GtkBorder border;
+ gint width, height;
+
+ /* Find the largest of the two. */
+ ev_page_cache_get_size (view->page_cache,
+ view->current_page,
+ view->rotation,
+ view->scale,
+ &width, &height);
+ if (view->current_page + 1 < ev_page_cache_get_n_pages (view->page_cache)) {
+ gint width_2, height_2;
+ ev_page_cache_get_size (view->page_cache,
+ view->current_page + 1,
+ view->rotation,
+ view->scale,
+ &width_2, &height_2);
+ if (width_2 > width) {
+ width = width_2;
+ height = height_2;
+ }
+ }
+ compute_border (view, width, height, &border);
+
+ requisition->width = ((width + border.left + border.right) * 2) +
+ (view->spacing * 3);
+ requisition->height = (height + border.top + border.bottom) +
+ (view->spacing * 2);
+
+ if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
+ requisition->width = 1;
+ } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
+ requisition->width = 1;
+ requisition->height = 1;
+ }
+}
+
+static void
+ev_view_size_request_single_page (EvView *view,
+ GtkRequisition *requisition)
+{
+ GtkBorder border;
+ gint width, height;
+
+ ev_page_cache_get_size (view->page_cache,
+ view->current_page,
+ view->rotation,
+ view->scale,
+ &width, &height);
+ compute_border (view, width, height, &border);
+
+ requisition->width = width + border.left + border.right + (2 * view->spacing);
+ requisition->height = height + border.top + border.bottom + (2 * view->spacing);
+
+ if (view->sizing_mode == EV_SIZING_FIT_WIDTH) {
+ requisition->width = 1;
+ requisition->height = height + border.top + border.bottom + (2 * view->spacing);
+ } else if (view->sizing_mode == EV_SIZING_BEST_FIT) {
+ requisition->width = 1;
+ requisition->height = 1;
+ }
+}
+
+static void
+ev_view_size_request (GtkWidget *widget,
+ GtkRequisition *requisition)
+{
+ EvView *view = EV_VIEW (widget);
+
+ if (view->document == NULL) {
+ requisition->width = 1;
+ requisition->height = 1;
+ return;
+ }
+
+ if (view->presentation) {
+ requisition->width = 1;
+ requisition->height = 1;
+ return;
+ }
+
+ if (view->continuous && view->dual_page)
+ ev_view_size_request_continuous_dual_page (view, requisition);
+ else if (view->continuous)
+ ev_view_size_request_continuous (view, requisition);
+ else if (view->dual_page)
+ ev_view_size_request_dual_page (view, requisition);
+ else
+ ev_view_size_request_single_page (view, requisition);
+}
+
+static void
+ev_view_size_allocate (GtkWidget *widget,
+ GtkAllocation *allocation)
+{
+ EvView *view = EV_VIEW (widget);
+ GList *children, *l;
+
+ GTK_WIDGET_CLASS (ev_view_parent_class)->size_allocate (widget, allocation);
+
+ if (view->sizing_mode == EV_SIZING_FIT_WIDTH ||
+ view->sizing_mode == EV_SIZING_BEST_FIT) {
+
+ g_signal_emit (view, signals[SIGNAL_ZOOM_INVALID], 0);
+
+ ev_view_size_request (widget, &widget->requisition);
+ }
+
+ view_set_adjustment_values (view, GTK_ORIENTATION_HORIZONTAL);
+ view_set_adjustment_values (view, GTK_ORIENTATION_VERTICAL);
+
+ if (view->document)
+ view_update_range_and_current_page (view);
+
+ view->pending_scroll = SCROLL_TO_KEEP_POSITION;
+ view->pending_resize = FALSE;
+
+ children = gtk_container_get_children (GTK_CONTAINER (widget));
+ for (l = children; l && l->data; l = g_list_next (l)) {
+ EvFormField *field;
+ EvRectangle field_area;
+ GdkRectangle view_area;
+ GList *form_field_mapping;
+ GtkAllocation child_allocation;
+ GtkRequisition child_requisition;
+ GtkWidget *child = (GtkWidget *)l->data;
+
+ field = g_object_get_data (G_OBJECT (child), "form-field");
+ if (!field)
+ continue;
+
+ form_field_mapping = ev_pixbuf_cache_get_form_field_mapping (view->pixbuf_cache,
+ field->page->index);
+ ev_form_field_mapping_get_area (form_field_mapping, field, &field_area);
+
+ doc_rect_to_view_rect (view, field->page->index, &field_area, &view_area);
+ view_area.x -= view->scroll_x;
+ view_area.y -= view->scroll_y;
+
+ gtk_widget_size_request (child, &child_requisition);
+ if (child_requisition.width != view_area.width ||
+ child_requisition.height != view_area.height)
+ gtk_widget_set_size_request (child, view_area.width, view_area.height);
+
+ gtk_container_child_get (GTK_CONTAINER (widget),
+ child,
+ "x", &child_allocation.x,
+ "y", &child_allocation.y,
+ NULL);
+ if (child_allocation.x != view_area.x ||
+ child_allocation.y != view_area.y) {
+ gtk_layout_move (GTK_LAYOUT (widget), child, view_area.x, view_area.y);
+ }
+ }
+ g_list_free (children);
+}
+
+static void
+ev_view_realize (GtkWidget *widget)
+{
+ EvView *view = EV_VIEW (widget);
+
+ if (GTK_WIDGET_CLASS (ev_view_parent_class)->realize)
+ (* GTK_WIDGET_CLASS (ev_view_parent_class)->realize) (widget);
+
+ gdk_window_set_events (view->layout.bin_window,
+ (gdk_window_get_events (view->layout.bin_window) |
+ GDK_EXPOSURE_MASK |
+ GDK_BUTTON_PRESS_MASK |
+ GDK_BUTTON_RELEASE_MASK |
+ GDK_SCROLL_MASK |
+ GDK_KEY_PRESS_MASK |
+ GDK_POINTER_MOTION_MASK |
+ GDK_POINTER_MOTION_HINT_MASK |
+ GDK_ENTER_NOTIFY_MASK |
+ GDK_LEAVE_NOTIFY_MASK));
+
+ if (view->presentation)
+ gdk_window_set_background (view->layout.bin_window, &widget->style->black);
+ else
+ gdk_window_set_background (view->layout.bin_window, &widget->style->mid [GTK_STATE_NORMAL]);
+}
+
+static gboolean
+ev_view_scroll_event (GtkWidget *widget, GdkEventScroll *event)
+{
+ EvView *view = EV_VIEW (widget);
+ guint state;
+
+ state = event->state & gtk_accelerator_get_default_mod_mask ();
+
+ if (state == GDK_CONTROL_MASK && view->presentation == FALSE) {
+ ev_view_set_sizing_mode (view, EV_SIZING_FREE);
+
+ if (event->direction == GDK_SCROLL_UP ||
+ event->direction == GDK_SCROLL_LEFT) {
+ if (ev_view_can_zoom_in (view)) {
+ ev_view_zoom_in (view);
+ }
+ } else {
+ if (ev_view_can_zoom_out (view)) {
+ ev_view_zoom_out (view);
+ }
+ }
+
+ return TRUE;
+ }
+
+ view->jump_to_find_result = FALSE;
+
+ /* Shift+Wheel scrolls the in the perpendicular direction */
+ if (state & GDK_SHIFT_MASK) {
+ if (event->direction == GDK_SCROLL_UP)
+ event->direction = GDK_SCROLL_LEFT;
+ else if (event->direction == GDK_SCROLL_LEFT)
+ event->direction = GDK_SCROLL_UP;
+ else if (event->direction == GDK_SCROLL_DOWN)
+ event->direction = GDK_SCROLL_RIGHT;
+ else if (event->direction == GDK_SCROLL_RIGHT)
+ event->direction = GDK_SCROLL_DOWN;
+
+ event->state &= ~GDK_SHIFT_MASK;
+ state &= ~GDK_SHIFT_MASK;
+ }
+
+ if (state == 0 && view->presentation) {
+ switch (event->direction) {
+ case GDK_SCROLL_DOWN:
+ case GDK_SCROLL_RIGHT:
+ ev_view_next_page (view);
+ break;
+ case GDK_SCROLL_UP:
+ case GDK_SCROLL_LEFT:
+ ev_view_previous_page (view);
+ break;
+ }
+
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static EvViewSelection *
+find_selection_for_page (EvView *view,
+ gint page)
+{
+ GList *list;
+
+ for (list = view->selection_info.selections; list != NULL; list = list->next) {
+ EvViewSelection *selection;
+
+ selection = (EvViewSelection *) list->data;
+
+ if (selection->page == page)
+ return selection;
+ }
+
+ return NULL;
+}
+
+static void
+draw_end_presentation_page (EvView *view,
+ GdkRectangle *page_area)
+{
+ PangoLayout *layout;
+ PangoFontDescription *font_desc;
+ gchar *markup;
+ const gchar *text = _("End of presentation. Press Escape to exit.");
+
+ if (view->presentation_state != EV_PRESENTATION_END)
+ return;
+
+ layout = gtk_widget_create_pango_layout (GTK_WIDGET (view), NULL);
+ markup = g_strdup_printf ("<span foreground=\"white\">%s</span>", text);
+ pango_layout_set_markup (layout, markup, -1);
+ g_free (markup);
+
+ font_desc = pango_font_description_new ();
+ pango_font_description_set_size (font_desc, 16 * PANGO_SCALE);
+ pango_layout_set_font_description (layout, font_desc);
+
+ gtk_paint_layout (GTK_WIDGET (view)->style,
+ view->layout.bin_window,
+ GTK_WIDGET_STATE (view),
+ FALSE,
+ page_area,
+ GTK_WIDGET (view),
+ NULL,
+ page_area->x + 15,
+ page_area->y + 15,
+ layout);
+
+ pango_font_description_free (font_desc);
+ g_object_unref (layout);
+}
+
+static gboolean
+ev_view_expose_event (GtkWidget *widget,
+ GdkEventExpose *event)
+{
+ EvView *view = EV_VIEW (widget);
+ cairo_t *cr;
+ gint i;
+
+ if (view->animation && ev_transition_animation_ready (view->animation)) {
+ GdkRectangle page_area;
+ GtkBorder border;
+
+ if (get_page_extents (view, view->current_page, &page_area, &border)) {
+ cr = gdk_cairo_create (view->layout.bin_window);
+
+ /* normalize to x=0, y=0 */
+ cairo_translate (cr, page_area.x, page_area.y);
+ page_area.x = page_area.y = 0;
+
+ ev_transition_animation_paint (view->animation, cr, page_area);
+ cairo_destroy (cr);
+ }
+
+ return TRUE;
+ }
+
+ if (view->presentation) {
+ switch (view->presentation_state) {
+ case EV_PRESENTATION_END: {
+ GdkRectangle area = {0};
+
+ area.width = widget->allocation.width;
+ area.height = widget->allocation.height;
+
+ draw_end_presentation_page (view, &area);
+ }
+ return FALSE;
+ case EV_PRESENTATION_BLACK:
+ case EV_PRESENTATION_WHITE:
+ return FALSE;
+ case EV_PRESENTATION_NORMAL:
+ default:
+ break;
+ }
+ } else if (view->loading) {
+ GdkRectangle area = {0};
+
+ area.width = widget->allocation.width;
+ area.height = widget->allocation.height;
+
+ draw_loading_text (view,
+ &area,
+ &(event->area));
+ }
+
+ if (view->document == NULL)
+ return FALSE;
+
+ cr = gdk_cairo_create (view->layout.bin_window);
+
+ for (i = view->start_page; i <= view->end_page; i++) {
+ GdkRectangle page_area;
+ GtkBorder border;
+ gboolean page_ready = TRUE;
+
+ if (!get_page_extents (view, i, &page_area, &border))
+ continue;
+
+ page_area.x -= view->scroll_x;
+ page_area.y -= view->scroll_y;
+
+ draw_one_page (view, i, cr, &page_area, &border, &(event->area), &page_ready);
+
+ if (page_ready && EV_IS_DOCUMENT_FIND (view->document) && view->highlight_find_results)
+ highlight_find_results (view, i);
+ }
+
+ cairo_destroy (cr);
+
+ if (GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event)
+ (* GTK_WIDGET_CLASS (ev_view_parent_class)->expose_event) (widget, event);
+
+ return FALSE;
+}
+
+static gboolean
+ev_view_do_popup_menu (EvView *view,
+ gdouble x,
+ gdouble y)
+{
+ EvLink *link;
+ EvImage *image;
+
+ image = ev_view_get_image_at_location (view, x, y);
+ if (image) {
+ g_signal_emit (view, signals[SIGNAL_POPUP_MENU], 0, image);
+ return TRUE;
+ }
+
+ link = ev_view_get_link_at_location (view, x, y);
+ if (link) {
+ g_signal_emit (view, signals[SIGNAL_POPUP_MENU], 0, link);
+ return TRUE;
+ }
+
+ g_signal_emit (view, signals[SIGNAL_POPUP_MENU], 0, NULL);
+
+ return TRUE;
+}
+
+static gboolean
+ev_view_popup_menu (GtkWidget *widget)
+{
+ gint x, y;
+
+ gtk_widget_get_pointer (widget, &x, &y);
+ return ev_view_do_popup_menu (EV_VIEW (widget), x, y);
+}
+
+#if GTK_CHECK_VERSION (2, 11, 7)
+static void
+get_link_area (EvView *view,
+ gint x,
+ gint y,
+ EvLink *link,
+ GdkRectangle *area)
+{
+ EvRectangle ev_rect;
+ GList *link_mapping;
+ gint page;
+ gint x_offset = 0, y_offset = 0;
+
+ x += view->scroll_x;
+ y += view->scroll_y;
+
+ find_page_at_location (view, x, y, &page, &x_offset, &y_offset);
+
+ link_mapping = ev_pixbuf_cache_get_link_mapping (view->pixbuf_cache, page);
+ ev_link_mapping_get_area (link_mapping, link, &ev_rect);
+
+ doc_rect_to_view_rect (view, page, &ev_rect, area);
+ area->y -= view->scroll_y ;
+}
+
+static gboolean
+ev_view_query_tooltip (GtkWidget *widget,
+ gint x,
+ gint y,
+ gboolean keyboard_tip,
+ GtkTooltip *tooltip)
+{
+ EvView *view = EV_VIEW (widget);
+ EvLink *link;
+ gchar *text;
+
+ link = ev_view_get_link_at_location (view, x, y);
+ if (!link)
+ return FALSE;
+
+ text = tip_from_link (view, link);
+ if (text && g_utf8_validate (text, -1, NULL)) {
+ GdkRectangle link_area;
+
+ get_link_area (view, x, y, link, &link_area);
+ gtk_tooltip_set_text (tooltip, text);
+ gtk_tooltip_set_tip_area (tooltip, &link_area);
+ }
+ g_free (text);
+
+ return TRUE;
+}
+#endif /* GTK_CHECK_VERSION (2, 11, 7) */
+
+static void
+start_selection_for_event (EvView *view,
+ GdkEventButton *event)
+{
+ EvSelectionStyle style;
+
+ clear_selection (view);
+
+ view->selection_info.start.x = event->x + view->scroll_x;
+ view->selection_info.start.y = event->y + view->scroll_y;
+
+ switch (event->type) {
+ case GDK_2BUTTON_PRESS:
+ style = EV_SELECTION_STYLE_WORD;
+ break;
+ case GDK_3BUTTON_PRESS:
+ style = EV_SELECTION_STYLE_LINE;
+ break;
+ default:
+ style = EV_SELECTION_STYLE_GLYPH;
+ break;
+ }
+
+ view->selection_info.style = style;
+}
+
+static gboolean
+ev_view_button_press_event (GtkWidget *widget,
+ GdkEventButton *event)
+{
+ EvView *view = EV_VIEW (widget);
+
+ if (!view->document)
+ return FALSE;
+
+ if (!GTK_WIDGET_HAS_FOCUS (widget)) {
+ gtk_widget_grab_focus (widget);
+ }
+
+ view->pressed_button = event->button;
+ view->selection_info.in_drag = FALSE;
+
+ if (view->scroll_info.autoscrolling)
+ return TRUE;
+
+ switch (event->button) {
+ case 1: {
+ EvImage *image;
+ EvFormField *field;
+
+ if (EV_IS_SELECTION (view->document) && view->selection_info.selections) {
+ if (event->type == GDK_3BUTTON_PRESS) {
+ start_selection_for_event (view, event);
+ } else if (location_in_selected_text (view,
+ event->x + view->scroll_x,
+ event->y + view->scroll_y)) {
+ view->selection_info.in_drag = TRUE;
+ } else {
+ start_selection_for_event (view, event);
+ }
+
+ gtk_widget_queue_draw (widget);
+ } else if ((field = ev_view_get_form_field_at_location (view, event->x, event->y))) {
+ ev_view_remove_all (view);
+ ev_view_handle_form_field (view, field, event->x, event->y);
+ } else if (!location_in_text (view, event->x + view->scroll_x, event->y + view->scroll_y) &&
+ (image = ev_view_get_image_at_location (view, event->x, event->y))) {
+ if (view->image_dnd_info.image)
+ g_object_unref (view->image_dnd_info.image);
+ view->image_dnd_info.image = g_object_ref (image);
+ view->image_dnd_info.in_drag = TRUE;
+
+ view->image_dnd_info.start.x = event->x + view->scroll_x;
+ view->image_dnd_info.start.y = event->y + view->scroll_y;
+ } else {
+ ev_view_remove_all (view);
+
+ if (EV_IS_SELECTION (view->document))
+ start_selection_for_event (view, event);
+ }
+ }
+ return TRUE;
+ case 2:
+ /* use root coordinates as reference point because
+ * scrolling changes window relative coordinates */
+ view->drag_info.start.x = event->x_root;
+ view->drag_info.start.y = event->y_root;
+ view->drag_info.hadj = gtk_adjustment_get_value (view->hadjustment);
+ view->drag_info.vadj = gtk_adjustment_get_value (view->vadjustment);
+
+ ev_view_set_cursor (view, EV_VIEW_CURSOR_DRAG);
+
+ return TRUE;
+ case 3:
+ view->scroll_info.start_y = event->y;
+ return ev_view_do_popup_menu (view, event->x, event->y);
+ }
+
+ return FALSE;
+}
+
+static void
+ev_view_remove_all (EvView *view)
+{
+ GList *children, *child;
+
+ children = gtk_container_get_children (GTK_CONTAINER (view));
+ for (child = children; child && child->data; child = g_list_next (child)) {
+ gtk_container_remove (GTK_CONTAINER (view),
+ GTK_WIDGET (child->data));
+ }
+ g_list_free (children);
+}
+
+/*** Drag and Drop ***/
+static void
+ev_view_drag_data_get (GtkWidget *widget,
+ GdkDragContext *context,
+ GtkSelectionData *selection_data,
+ guint info,
+ guint time)
+{
+ EvView *view = EV_VIEW (widget);
+
+ switch (info) {
+ case TARGET_DND_TEXT:
+ if (EV_IS_SELECTION (view->document) &&
+ view->selection_info.selections) {
+ gchar *text;
+
+ text = get_selected_text (view);
+ gtk_selection_data_set_text (selection_data,
+ text,
+ strlen (text));
+ g_free (text);
+ }
+ break;
+ case TARGET_DND_IMAGE:
+ if (view->image_dnd_info.image) {
+ GdkPixbuf *pixbuf;
+
+ ev_document_doc_mutex_lock ();
+ pixbuf = ev_document_images_get_image (EV_DOCUMENT_IMAGES (view->document),
+ view->image_dnd_info.image);
+ ev_document_doc_mutex_unlock ();
+
+ gtk_selection_data_set_pixbuf (selection_data, pixbuf);
+ g_object_unref (pixbuf);
+ }
+ break;
+ case TARGET_DND_URI:
+ if (view->image_dnd_info.image) {
+ GdkPixbuf *pixbuf;
+ const gchar *tmp_uri;
+ gchar **uris;
+
+ ev_document_doc_mutex_lock ();
+ pixbuf = ev_document_images_get_image (EV_DOCUMENT_IMAGES (view->document),
+ view->image_dnd_info.image);
+ ev_document_doc_mutex_unlock ();
+
+ tmp_uri = ev_image_save_tmp (view->image_dnd_info.image, pixbuf);
+ g_object_unref (pixbuf);
+
+ uris = g_new0 (gchar *, 2);
+ uris[0] = (gchar *)tmp_uri;
+
+ gtk_selection_data_set_uris (selection_data, uris);
+
+ /* g_free instead of g_strfreev since tmp_uri is const */
+ g_free (uris);
+ }
+ }
+}
+
+static gboolean
+ev_view_drag_motion (GtkWidget *widget,
+ GdkDragContext *context,
+ gint x,
+ gint y,
+ guint time)
+{
+ if (gtk_drag_get_source_widget (context) == widget)
+ gdk_drag_status (context, 0, time);
+ else
+ gdk_drag_status (context, context->suggested_action, time);
+
+ return TRUE;
+}
+
+static void
+ev_view_drag_data_received (GtkWidget *widget,
+ GdkDragContext *context,
+ gint x,
+ gint y,
+ GtkSelectionData *selection_data,
+ guint info,
+ guint time)
+{
+ gchar **uris;
+ gint i = 0;
+ GSList *uri_list = NULL;
+
+ uris = gtk_selection_data_get_uris (selection_data);
+ if (!uris) {
+ gtk_drag_finish (context, FALSE, FALSE, time);
+ return;
+ }
+
+ for (i = 0; uris[i]; i++) {
+ uri_list = g_slist_prepend (uri_list, (gpointer) uris[i]);
+ }
+
+ ev_application_open_uri_list (EV_APP, uri_list,
+ gtk_widget_get_screen (widget),
+ 0);
+ gtk_drag_finish (context, TRUE, FALSE, time);
+
+ g_strfreev (uris);
+ g_slist_free (uri_list);
+}
+
+
+static gboolean
+selection_update_idle_cb (EvView *view)
+{
+ compute_selections (view,
+ view->selection_info.style,
+ &view->selection_info.start,
+ &view->motion);
+ view->selection_update_id = 0;
+ return FALSE;
+}
+
+static gboolean
+selection_scroll_timeout_cb (EvView *view)
+{
+ gint x, y, shift = 0;
+ GtkWidget *widget = GTK_WIDGET (view);
+
+ gtk_widget_get_pointer (widget, &x, &y);
+
+ if (y > widget->allocation.height) {
+ shift = (y - widget->allocation.height) / 2;
+ } else if (y < 0) {
+ shift = y / 2;
+ }
+
+ if (shift)
+ gtk_adjustment_set_value (view->vadjustment,
+ CLAMP (view->vadjustment->value + shift,
+ view->vadjustment->lower,
+ view->vadjustment->upper -
+ view->vadjustment->page_size));
+
+ if (x > widget->allocation.width) {
+ shift = (x - widget->allocation.width) / 2;
+ } else if (x < 0) {
+ shift = x / 2;
+ }
+
+ if (shift)
+ gtk_adjustment_set_value (view->hadjustment,
+ CLAMP (view->hadjustment->value + shift,
+ view->hadjustment->lower,
+ view->hadjustment->upper -
+ view->hadjustment->page_size));
+
+ return TRUE;
+}
+
+static gboolean
+ev_view_drag_update_momentum (EvView *view)
+{
+ int i;
+ if (!view->drag_info.in_drag)
+ return FALSE;
+
+ for (i = DRAG_HISTORY - 1; i > 0; i--) {
+ view->drag_info.buffer[i].x = view->drag_info.buffer[i-1].x;
+ view->drag_info.buffer[i].y = view->drag_info.buffer[i-1].y;
+ }
+
+ /* Momentum is a moving average of 10ms granularity over
+ * the last 100ms with each 10ms stored in buffer.
+ */
+
+ view->drag_info.momentum.x = (view->drag_info.buffer[DRAG_HISTORY - 1].x - view->drag_info.buffer[0].x);
+ view->drag_info.momentum.y = (view->drag_info.buffer[DRAG_HISTORY - 1].y - view->drag_info.buffer[0].y);
+
+ return TRUE;
+}
+
+static gboolean
+ev_view_scroll_drag_release (EvView *view)
+{
+ gdouble dhadj_value, dvadj_value;
+ gdouble oldhadjustment, oldvadjustment;
+
+ view->drag_info.momentum.x /= 1.2;
+ view->drag_info.momentum.y /= 1.2; /* Alter these constants to change "friction" */
+
+ dhadj_value = view->hadjustment->page_size *
+ (gdouble)view->drag_info.momentum.x / GTK_WIDGET (view)->allocation.width;
+ dvadj_value = view->vadjustment->page_size *
+ (gdouble)view->drag_info.momentum.y / GTK_WIDGET (view)->allocation.height;
+
+ oldhadjustment = gtk_adjustment_get_value (view->hadjustment);
+ oldvadjustment = gtk_adjustment_get_value (view->vadjustment);
+
+ if (((oldhadjustment + dhadj_value) > (view->hadjustment->upper - view->hadjustment->page_size)) ||
+ ((oldhadjustment + dhadj_value) < 0))
+ view->drag_info.momentum.x *= -0.5; /* 0.5 rather than 1 means the edges absorb some momentum */
+ if (((oldvadjustment + dvadj_value) > (view->vadjustment->upper - view->vadjustment->page_size)) ||
+ ((oldvadjustment + dvadj_value) < 0))
+ view->drag_info.momentum.y *= -0.5;
+
+ gtk_adjustment_set_value (view->hadjustment,
+ MIN (oldhadjustment + dhadj_value,
+ view->hadjustment->upper - view->hadjustment->page_size));
+ gtk_adjustment_set_value (view->vadjustment,
+ MIN (oldvadjustment + dvadj_value,
+ view->vadjustment->upper - view->vadjustment->page_size));
+
+ if (((view->drag_info.momentum.x < 1) && (view->drag_info.momentum.x > -1)) &&
+ ((view->drag_info.momentum.y < 1) && (view->drag_info.momentum.y > -1)))
+ return FALSE;
+ else
+ return TRUE;
+}
+
+static gboolean
+ev_view_motion_notify_event (GtkWidget *widget,
+ GdkEventMotion *event)
+{
+ EvView *view = EV_VIEW (widget);
+ gint x, y;
+
+ if (!view->document)
+ return FALSE;
+
+
+ if (event->is_hint || event->window != view->layout.bin_window) {
+ gtk_widget_get_pointer (widget, &x, &y);
+ } else {
+ x = event->x;
+ y = event->y;
+ }
+
+ if (view->scroll_info.autoscrolling) {
+ view->scroll_info.last_y = y;
+ return TRUE;
+ }
+
+ if (view->selection_info.in_drag) {
+ if (gtk_drag_check_threshold (widget,
+ view->selection_info.start.x,
+ view->selection_info.start.y,
+ x, y)) {
+ GtkTargetList *target_list = gtk_target_list_new (NULL, 0);
+
+ gtk_target_list_add_text_targets (target_list, TARGET_DND_TEXT);
+
+ gtk_drag_begin (widget, target_list,
+ GDK_ACTION_COPY,
+ 1, (GdkEvent *)event);
+
+ view->selection_info.in_drag = FALSE;
+
+ gtk_target_list_unref (target_list);
+
+ return TRUE;
+ }
+ } else if (view->image_dnd_info.in_drag) {
+ if (gtk_drag_check_threshold (widget,
+ view->selection_info.start.x,
+ view->selection_info.start.y,
+ x, y)) {
+ GtkTargetList *target_list = gtk_target_list_new (NULL, 0);
+
+ gtk_target_list_add_uri_targets (target_list, TARGET_DND_URI);
+ gtk_target_list_add_image_targets (target_list, TARGET_DND_IMAGE, TRUE);
+
+ gtk_drag_begin (widget, target_list,
+ GDK_ACTION_COPY,
+ 1, (GdkEvent *)event);
+
+ view->image_dnd_info.in_drag = FALSE;
+
+ gtk_target_list_unref (target_list);
+
+ return TRUE;
+ }
+ }
+
+ /* For the Evince 0.4.x release, we limit selection to un-rotated
+ * documents only.
+ */
+ if (view->pressed_button == 1 && view->rotation == 0) {
+
+ /* Schedule timeout to scroll during selection and additionally
+ * scroll once to allow arbitrary speed. */
+ if (!view->selection_scroll_id)
+ view->selection_scroll_id = g_timeout_add (SCROLL_TIME, (GSourceFunc)selection_scroll_timeout_cb, view);
+ else
+ selection_scroll_timeout_cb (view);
+
+ view->selection_info.in_selection = TRUE;
+ view->motion.x = x + view->scroll_x;
+ view->motion.y = y + view->scroll_y;
+
+ /* Queue an idle to handle the motion. We do this because
+ * handling any selection events in the motion could be slower
+ * than new motion events reach us. We always put it in the
+ * idle to make sure we catch up and don't visibly lag the
+ * mouse. */
+ if (!view->selection_update_id)
+ view->selection_update_id = g_idle_add ((GSourceFunc)selection_update_idle_cb, view);
+
+ return TRUE;
+ } else if (view->pressed_button == 2) {
+ if (!view->drag_info.in_drag) {
+ gboolean start;
+ int i;
+
+ start = gtk_drag_check_threshold (widget,
+ view->drag_info.start.x,
+ view->drag_info.start.y,
+ event->x_root,
+ event->y_root);
+ view->drag_info.in_drag = start;
+ view->drag_info.drag_timeout_id = g_timeout_add (10,
+ (GSourceFunc)ev_view_drag_update_momentum, view);
+ /* Set 100 to choose how long it takes to build up momentum */
+ /* Clear out previous momentum info: */
+ for (i = 0; i < DRAG_HISTORY; i++) {
+ view->drag_info.buffer[i].x = event->x;
+ view->drag_info.buffer[i].y = event->y;
+ }
+ view->drag_info.momentum.x = 0;
+ view->drag_info.momentum.y = 0;
+ }
+
+ if (view->drag_info.in_drag) {
+ int dx, dy;
+ gdouble dhadj_value, dvadj_value;
+
+ view->drag_info.buffer[0].x = event->x;
+ view->drag_info.buffer[0].y = event->y;
+
+ dx = event->x_root - view->drag_info.start.x;
+ dy = event->y_root - view->drag_info.start.y;
+
+ dhadj_value = view->hadjustment->page_size *
+ (gdouble)dx / widget->allocation.width;
+ dvadj_value = view->vadjustment->page_size *
+ (gdouble)dy / widget->allocation.height;
+
+ /* clamp scrolling to visible area */
+ gtk_adjustment_set_value (view->hadjustment,
+ MIN(view->drag_info.hadj - dhadj_value,
+ view->hadjustment->upper -
+ view->hadjustment->page_size));
+ gtk_adjustment_set_value (view->vadjustment,
+ MIN(view->drag_info.vadj - dvadj_value,
+ view->vadjustment->upper -
+ view->vadjustment->page_size));
+
+ return TRUE;
+ }
+ } else if (view->pressed_button <= 0) {
+ ev_view_handle_cursor_over_xy (view, x, y);
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static gboolean
+ev_view_button_release_event (GtkWidget *widget,
+ GdkEventButton *event)
+{
+ EvView *view = EV_VIEW (widget);
+ EvLink *link = NULL;
+
+ view->image_dnd_info.in_drag = FALSE;
+
+ if (view->scroll_info.autoscrolling) {
+ ev_view_autoscroll_stop (view);
+ view->pressed_button = -1;
+
+ return TRUE;
+ }
+
+ if (view->drag_info.in_drag) {
+ view->drag_info.release_timeout_id =
+ g_timeout_add (20,
+ (GSourceFunc)ev_view_scroll_drag_release, view);
+ }
+
+ if (view->document && !view->drag_info.in_drag && view->pressed_button != 3) {
+ link = ev_view_get_link_at_location (view, event->x, event->y);
+ }
+
+ view->drag_info.in_drag = FALSE;
+
+ if (view->pressed_button == 2) {
+ ev_view_handle_cursor_over_xy (view, event->x, event->y);
+ }
+
+ view->pressed_button = -1;
+
+ if (view->selection_scroll_id) {
+ g_source_remove (view->selection_scroll_id);
+ view->selection_scroll_id = 0;
+ }
+ if (view->selection_update_id) {
+ g_source_remove (view->selection_update_id);
+ view->selection_update_id = 0;
+ }
+
+ if (!view->selection_info.in_selection &&
+ view->selection_info.style != EV_SELECTION_STYLE_GLYPH) {
+ compute_selections (view,
+ view->selection_info.style,
+ &(view->selection_info.start),
+ &(view->selection_info.start));
+ }
+
+ if (view->selection_info.selections) {
+ clear_link_selected (view);
+ ev_view_update_primary_selection (view);
+
+ if (view->selection_info.in_drag) {
+ clear_selection (view);
+ gtk_widget_queue_draw (widget);
+ }
+
+ view->selection_info.in_drag = FALSE;
+ } else if (link) {
+ if (event->button == 2) {
+ EvLinkAction *action;
+ EvLinkActionType type;
+
+ action = ev_link_get_action (link);
+ if (!action)
+ return FALSE;
+
+ type = ev_link_action_get_action_type (action);
+ if (type == EV_LINK_ACTION_TYPE_GOTO_DEST) {
+ g_signal_emit (view,
+ signals[SIGNAL_EXTERNAL_LINK],
+ 0, action);
+ }
+ } else {
+ ev_view_handle_link (view, link);
+ }
+ } else if (view->presentation) {
+ switch (event->button) {
+ case 1:
+ ev_view_next_page (view);
+ return TRUE;
+ case 3:
+ ev_view_previous_page (view);
+ return TRUE;
+ }
+ }
+
+ return FALSE;