From 85c366bda9f25b1249ba8333604eb3e757bc6edf Mon Sep 17 00:00:00 2001
From: Marco Pesenti Gritti <mpg@redhat.com>
Date: Mon, 26 Sep 2005 10:28:48 +0000
Subject: Implement launch links. Delegate external link opening to the window.

2005-09-26  Marco Pesenti Gritti  <mpg@redhat.com>

        * backend/ev-link.c: (ev_link_type_get_type),
        (ev_link_get_filename), (ev_link_get_params),
        (ev_link_get_property), (ev_link_set_property),
        (ev_window_dispose), (ev_link_class_init), (ev_link_new_launch):
        * backend/ev-link.h:
        * pdf/ev-poppler.cc:
        * shell/ev-view.c: (ev_view_goto_link), (ev_view_class_init):
        * shell/ev-window.c: (launch_link), (view_external_link_cb),
        (ev_window_init):

        Implement launch links. Delegate external link opening to
        the window.
---
(limited to 'shell')

diff --git a/shell/ev-view.c b/shell/ev-view.c
index c5cc503..15bd412 100644
--- a/shell/ev-view.c
+++ b/shell/ev-view.c
@@ -60,6 +60,7 @@ enum {
 enum {
 	SIGNAL_BINDING_ACTIVATED,
 	SIGNAL_ZOOM_INVALID,
+	SIGNAL_EXTERNAL_LINK,
 	N_SIGNALS,
 };
 
@@ -188,6 +189,8 @@ struct _EvViewClass {
 					   GtkScrollType   scroll,
 					   gboolean        horizontal);
 	void    (*zoom_invalid)		  (EvView         *view);
+	void    (*external_link)	  (EvView         *view,
+					   EvLink         *link);
 };
 
 /*** Scrolling ***/
@@ -1234,7 +1237,6 @@ void
 ev_view_goto_link (EvView *view, EvLink *link)
 {
 	EvLinkType type;
-	const char *uri;
 	int page;
 
 	type = ev_link_get_link_type (link);
@@ -1262,8 +1264,8 @@ ev_view_goto_link (EvView *view, EvLink *link)
 			goto_xyz_link (view, link);
 			break;
 		case EV_LINK_TYPE_EXTERNAL_URI:
-			uri = ev_link_get_uri (link);
-			gnome_vfs_url_show (uri);
+		case EV_LINK_TYPE_LAUNCH:
+			g_signal_emit (view, signals[SIGNAL_EXTERNAL_LINK], 0, link);
 			break;
 	}
 }
@@ -2288,6 +2290,14 @@ ev_view_class_init (EvViewClass *class)
 		         NULL, NULL,
 		         ev_marshal_VOID__VOID,
 		         G_TYPE_NONE, 0, G_TYPE_NONE);
+	signals[SIGNAL_EXTERNAL_LINK] = g_signal_new ("external-link",
+	  	         G_TYPE_FROM_CLASS (object_class),
+		         G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+		         G_STRUCT_OFFSET (EvViewClass, external_link),
+		         NULL, NULL,
+		         g_cclosure_marshal_VOID__OBJECT,
+		         G_TYPE_NONE, 1,
+			 G_TYPE_OBJECT);
 
 	g_object_class_install_property (object_class,
 					 PROP_STATUS,
diff --git a/shell/ev-window.c b/shell/ev-window.c
index 5abda4d..3ca912e 100644
--- a/shell/ev-window.c
+++ b/shell/ev-window.c
@@ -3229,6 +3229,58 @@ sidebar_links_link_activated_cb (EvSidebarLinks *sidebar_links, EvLink *link, Ev
 }
 
 static void
+launch_link (EvWindow *window, EvLink *link)
+{
+	const char *filename = ev_link_get_filename (link);
+	char *uri = NULL;
+
+	if (g_path_is_absolute (filename)) {
+		uri = g_strconcat ("file://", filename, NULL);
+	} else {
+		GnomeVFSURI *base_uri, *resolved_uri;
+
+		base_uri = gnome_vfs_uri_new (window->priv->uri);
+		if (base_uri) {
+			resolved_uri = gnome_vfs_uri_resolve_relative (base_uri, filename);	
+			if (resolved_uri) {
+				uri = gnome_vfs_uri_to_string (resolved_uri, GNOME_VFS_URI_HIDE_NONE);
+			}
+			gnome_vfs_uri_unref (resolved_uri);
+		}
+		gnome_vfs_uri_unref (base_uri);
+	}
+
+	if (uri) {
+		gnome_vfs_url_show (uri);
+	} else {
+		gnome_vfs_url_show (filename);
+	}
+
+	g_free (uri);
+
+	/* According to the PDF spec filename can be an executable. I'm not sure
+	   allowing to launch executables is a good idea though. -- marco */
+}
+
+static void
+view_external_link_cb (EvView *view, EvLink *link, EvWindow *window)
+{
+	const char *uri;
+
+	switch (ev_link_get_link_type (link)) {
+	case EV_LINK_TYPE_EXTERNAL_URI:
+		uri = ev_link_get_uri (link);
+		gnome_vfs_url_show (uri);
+		break;
+	case EV_LINK_TYPE_LAUNCH:
+		launch_link (window, link);
+		break;
+	default:
+		g_assert_not_reached ();
+	}
+}
+
+static void
 ev_window_init (EvWindow *ev_window)
 {
 	GtkActionGroup *action_group;
@@ -3368,6 +3420,9 @@ 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);
 	gtk_widget_show (ev_window->priv->view);
 	gtk_widget_show (ev_window->priv->password_view);
 
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