[evince] Add support for external links to EvViewPresentation

[Carlos Garcia Campos <carlosgc src gnome org>]

commit 4f8bc8db98020835d2c4d39c902a296b784cf030
Author: Carlos Garcia Campos <carlosgc gnome org>
Date:   Sat Jan 29 14:31:03 2011 +0100

    Add support for external links to EvViewPresentation
    
    Fixes bug #628711.

 libview/ev-view-presentation.c |   44 ++++++++++++++++++++++++++++++++-------
 shell/ev-window.c              |   13 ++++++++---
 2 files changed, 45 insertions(+), 12 deletions(-)
---
diff --git a/libview/ev-view-presentation.c b/libview/ev-view-presentation.c
index 7c03116..914868a 100644
--- a/libview/ev-view-presentation.c
+++ b/libview/ev-view-presentation.c
@@ -42,6 +42,7 @@ enum {
 enum {
 	CHANGE_PAGE,
 	FINISHED,
+        SIGNAL_EXTERNAL_LINK,
 	N_SIGNALS
 };
 
@@ -94,9 +95,11 @@ struct _EvViewPresentationClass
 	GtkWidgetClass base_class;
 
 	/* signals */
-	void (* change_page) (EvViewPresentation *pview,
-			      GtkScrollType       scroll);
-	void (* finished)    (EvViewPresentation *pview);
+	void (* change_page)   (EvViewPresentation *pview,
+                                GtkScrollType       scroll);
+	void (* finished)      (EvViewPresentation *pview);
+        void (* external_link) (EvViewPresentation *pview,
+                                EvLinkAction       *action);
 };
 
 static guint signals[N_SIGNALS] = { 0 };
@@ -732,6 +735,9 @@ ev_view_presentation_link_is_supported (EvViewPresentation *pview,
 	case EV_LINK_ACTION_TYPE_GOTO_DEST:
 		return ev_link_action_get_dest (action) != NULL;
 	case EV_LINK_ACTION_TYPE_NAMED:
+        case EV_LINK_ACTION_TYPE_GOTO_REMOTE:
+        case EV_LINK_ACTION_TYPE_EXTERNAL_URI:
+        case EV_LINK_ACTION_TYPE_LAUNCH:
 		return TRUE;
 	default:
 		return FALSE;
@@ -790,14 +796,15 @@ ev_view_presentation_get_link_at_location (EvViewPresentation *pview,
 }
 
 static void
-ev_vew_presentation_goto_link_dest (EvViewPresentation *pview,
-				    EvLink             *link)
+ev_vew_presentation_handle_link (EvViewPresentation *pview,
+                                 EvLink             *link)
 {
 	EvLinkAction *action;
 
 	action = ev_link_get_action (link);
 
-	if (ev_link_action_get_action_type (action) == EV_LINK_ACTION_TYPE_NAMED) {
+        switch (ev_link_action_get_action_type (action)) {
+	case EV_LINK_ACTION_TYPE_NAMED: {
 		const gchar *name = ev_link_action_get_name (action);
 
 		if (g_ascii_strcasecmp (name, "FirstPage") == 0) {
@@ -812,13 +819,25 @@ ev_vew_presentation_goto_link_dest (EvViewPresentation *pview,
 			n_pages = ev_document_get_n_pages (pview->document);
 			ev_view_presentation_update_current_page (pview, n_pages - 1);
 		}
-	} else {
+        }
+                break;
+
+	case EV_LINK_ACTION_TYPE_GOTO_DEST: {
 		EvLinkDest *dest;
 		gint        page;
 
 		dest = ev_link_action_get_dest (action);
 		page = ev_document_links_get_dest_page (EV_DOCUMENT_LINKS (pview->document), dest);
 		ev_view_presentation_update_current_page (pview, page);
+        }
+                break;
+        case EV_LINK_ACTION_TYPE_GOTO_REMOTE:
+        case EV_LINK_ACTION_TYPE_EXTERNAL_URI:
+        case EV_LINK_ACTION_TYPE_LAUNCH:
+                g_signal_emit (pview, signals[SIGNAL_EXTERNAL_LINK], 0, action);
+                break;
+        default:
+                break;
 	}
 }
 
@@ -1154,7 +1173,7 @@ ev_view_presentation_button_release_event (GtkWidget      *widget,
 								  event->x,
 								  event->y);
 		if (link)
-			ev_vew_presentation_goto_link_dest (pview, link);
+			ev_vew_presentation_handle_link (pview, link);
 		else
 			ev_view_presentation_next_page (pview);
 	}
@@ -1434,6 +1453,15 @@ ev_view_presentation_class_init (EvViewPresentationClass *klass)
 			      g_cclosure_marshal_VOID__VOID,
 			      G_TYPE_NONE, 0,
 			      G_TYPE_NONE);
+        signals[SIGNAL_EXTERNAL_LINK] =
+                g_signal_new ("external-link",
+                              G_TYPE_FROM_CLASS (gobject_class),
+                              G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+                              G_STRUCT_OFFSET (EvViewPresentationClass, external_link),
+                              NULL, NULL,
+                              g_cclosure_marshal_VOID__OBJECT,
+                              G_TYPE_NONE, 1,
+                              G_TYPE_OBJECT);
 
 	binding_set = gtk_binding_set_by_class (klass);
 	add_change_page_binding_keypad (binding_set, GDK_KEY_Left,  0, GTK_SCROLL_PAGE_BACKWARD);
diff --git a/shell/ev-window.c b/shell/ev-window.c
index 0e6fd92..af8a83f 100644
--- a/shell/ev-window.c
+++ b/shell/ev-window.c
@@ -343,6 +343,8 @@ static void     ev_window_cmd_edit_find                 (GtkAction        *actio
 static void     find_bar_search_changed_cb              (EggFindBar       *find_bar,
 							 GParamSpec       *param,
 							 EvWindow         *ev_window);
+static void     view_external_link_cb                   (EvWindow         *window,
+							 EvLinkAction     *action);
 static void     ev_window_load_file_remote              (EvWindow         *ev_window,
 							 GFile            *source_file);
 static void     ev_window_media_player_key_pressed      (EvWindow         *window,
@@ -3992,6 +3994,9 @@ ev_window_run_presentation (EvWindow *window)
 	g_signal_connect_swapped (window->priv->presentation_view, "finished",
 				  G_CALLBACK (ev_window_view_presentation_finished),
 				  window);
+	g_signal_connect_swapped (window->priv->presentation_view, "external-link",
+				  G_CALLBACK (view_external_link_cb),
+				  window);
 
 	gtk_box_pack_start (GTK_BOX (window->priv->main_box),
 			    window->priv->presentation_view,
@@ -6229,7 +6234,7 @@ do_action_named (EvWindow *window, EvLinkAction *action)
 }
 
 static void
-view_external_link_cb (EvView *view, EvLinkAction *action, EvWindow *window)
+view_external_link_cb (EvWindow *window, EvLinkAction *action)
 {
 	switch (ev_link_action_get_action_type (action)) {
 	        case EV_LINK_ACTION_TYPE_GOTO_DEST: {
@@ -7191,9 +7196,9 @@ ev_window_init (EvWindow *ev_window)
 	g_signal_connect_object (ev_window->priv->view, "focus_out_event",
 			         G_CALLBACK (view_actions_focus_out_cb),
 			         ev_window, 0);
-	g_signal_connect_object (ev_window->priv->view, "external-link",
-			         G_CALLBACK (view_external_link_cb),
-			         ev_window, 0);
+	g_signal_connect_swapped (ev_window->priv->view, "external-link",
+				  G_CALLBACK (view_external_link_cb),
+				  ev_window);
 	g_signal_connect_object (ev_window->priv->view, "handle-link",
 			         G_CALLBACK (view_handle_link_cb),
 			         ev_window, 0);