[gedit-cossa] Update style when the document is saved.

[Ignacio Casal Quinteiro <icq src gnome org>]

commit 64f1ce36477e2f511a0d8b999f9ea90c5abfc435
Author: Ignacio Casal Quinteiro <icq gnome org>
Date:   Thu Jun 2 13:01:11 2011 +0200

    Update style when the document is saved.
    
    Implement the view activatable to make things easier

 src/gedit-cossa-plugin.c |  114 +++++++++++++++++++++++++++++++++++++---------
 1 files changed, 92 insertions(+), 22 deletions(-)
---
diff --git a/src/gedit-cossa-plugin.c b/src/gedit-cossa-plugin.c
index 1cb7941..739c1dc 100644
--- a/src/gedit-cossa-plugin.c
+++ b/src/gedit-cossa-plugin.c
@@ -26,15 +26,20 @@
 #include <gedit/gedit-debug.h>
 #include <gedit/gedit-window.h>
 #include <gedit/gedit-window-activatable.h>
+#include <gedit/gedit-view.h>
+#include <gedit/gedit-view-activatable.h>
 
 #define MENU_PATH "/MenuBar/ToolsMenu/ToolsOps_5"
+#define COSSA_WINDOW_PREVIEW "GeditCossaPluginWindowPreview"
 
 enum {
   PROP_0,
-  PROP_WINDOW
+  PROP_WINDOW,
+  PROP_VIEW
 };
 
 static void gedit_window_activatable_iface_init (GeditWindowActivatableInterface *iface);
+static void gedit_view_activatable_iface_init (GeditViewActivatableInterface *iface);
 
 static void preview_activated_cb                (GtkAction       *action,
                                                  gpointer         user_data);
@@ -44,18 +49,19 @@ G_DEFINE_DYNAMIC_TYPE_EXTENDED (CossaPlugin,
 				PEAS_TYPE_EXTENSION_BASE,
 				0,
 				G_IMPLEMENT_INTERFACE_DYNAMIC (GEDIT_TYPE_WINDOW_ACTIVATABLE,
-							       gedit_window_activatable_iface_init))
+							       gedit_window_activatable_iface_init)
+				G_IMPLEMENT_INTERFACE_DYNAMIC (GEDIT_TYPE_VIEW_ACTIVATABLE,
+							       gedit_view_activatable_iface_init))
 
 typedef struct CossaPluginPrivate CossaPluginPrivate;
 
 struct CossaPluginPrivate
 {
   GeditWindow *window;
+  GeditView *view;
 
   GtkActionGroup *ui_action_group;
   guint ui_id;
-
-  GHashTable *previews;
 };
 
 static const GtkActionEntry action_entries[] = {
@@ -66,13 +72,10 @@ static const GtkActionEntry action_entries[] = {
 static void
 cossa_plugin_init (CossaPlugin *plugin)
 {
-  CossaPluginPrivate *priv;
-
   gedit_debug_message (DEBUG_PLUGINS, "CossaPlugin initializing");
-  priv = plugin->priv = G_TYPE_INSTANCE_GET_PRIVATE (plugin,
-                                                     COSSA_TYPE_PLUGIN,
-                                                     CossaPluginPrivate);
-  priv->previews = g_hash_table_new (NULL, NULL);
+  plugin->priv = G_TYPE_INSTANCE_GET_PRIVATE (plugin,
+                                              COSSA_TYPE_PLUGIN,
+                                              CossaPluginPrivate);
 }
 
 static void
@@ -88,6 +91,9 @@ cossa_plugin_set_property (GObject      *object,
     case PROP_WINDOW:
       priv->window = g_value_dup_object (value);
       break;
+    case PROP_VIEW:
+      priv->view = g_value_dup_object (value);
+      break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
       break;
@@ -107,6 +113,9 @@ cossa_plugin_get_property (GObject    *object,
     case PROP_WINDOW:
       g_value_set_object (value, priv->window);
       break;
+    case PROP_VIEW:
+      g_value_set_object (value, priv->view);
+      break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
       break;
@@ -124,16 +133,16 @@ cossa_plugin_dispose (GObject *object)
       priv->window = NULL;
     }
 
-  if (priv->ui_action_group != NULL)
+  if (priv->view != NULL)
     {
-      g_object_unref (priv->ui_action_group);
-      priv->ui_action_group = NULL;
+      g_object_unref (priv->view);
+      priv->view = NULL;
     }
 
-  if (priv->previews != NULL)
+  if (priv->ui_action_group != NULL)
     {
-      g_hash_table_unref (priv->previews);
-      priv->previews = NULL;
+      g_object_unref (priv->ui_action_group);
+      priv->ui_action_group = NULL;
     }
 
   G_OBJECT_CLASS (cossa_plugin_parent_class)->dispose (object);
@@ -149,6 +158,7 @@ cossa_plugin_class_init (CossaPluginClass *klass)
   object_class->dispose = cossa_plugin_dispose;
 
   g_object_class_override_property (object_class, PROP_WINDOW, "window");
+  g_object_class_override_property (object_class, PROP_VIEW, "view");
 
   g_type_class_add_private (klass, sizeof (CossaPluginPrivate));
 }
@@ -159,7 +169,7 @@ cossa_plugin_class_finalize (CossaPluginClass *klass)
 }
 
 static void
-cossa_plugin_activate (GeditWindowActivatable *activatable)
+cossa_window_activatable_activate (GeditWindowActivatable *activatable)
 {
   CossaPluginPrivate *priv;
   GtkUIManager *manager;
@@ -191,7 +201,7 @@ cossa_plugin_activate (GeditWindowActivatable *activatable)
 }
 
 static void
-cossa_plugin_deactivate (GeditWindowActivatable *activatable)
+cossa_window_activatable_deactivate (GeditWindowActivatable *activatable)
 {
   CossaPluginPrivate *priv;
   GtkUIManager *manager;
@@ -208,8 +218,8 @@ cossa_plugin_deactivate (GeditWindowActivatable *activatable)
 static void
 gedit_window_activatable_iface_init (GeditWindowActivatableInterface *iface)
 {
-  iface->activate = cossa_plugin_activate;
-  iface->deactivate = cossa_plugin_deactivate;
+  iface->activate = cossa_window_activatable_activate;
+  iface->deactivate = cossa_window_activatable_deactivate;
 }
 
 static gchar *
@@ -243,6 +253,63 @@ update_style (CossaWindow *window,
 }
 
 static void
+on_document_saved (GeditDocument *doc,
+                   const GError  *error,
+                   CossaPlugin   *plugin)
+{
+  if (error == NULL)
+    {
+      GtkWidget *window;
+      CossaPluginPrivate *priv;
+
+      priv = plugin->priv;
+      window = g_object_get_data (G_OBJECT (priv->view), COSSA_WINDOW_PREVIEW);
+
+      if (window != NULL)
+        update_style (COSSA_WINDOW (window), priv->view);
+    }
+}
+
+static void
+cossa_view_activatable_activate (GeditViewActivatable *activatable)
+{
+  CossaPluginPrivate *priv;
+  GeditDocument *doc;
+
+  gedit_debug (DEBUG_PLUGINS);
+
+  priv = COSSA_PLUGIN (activatable)->priv;
+
+  doc = GEDIT_DOCUMENT (gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->view)));
+
+  g_signal_connect (doc, "saved",
+                    G_CALLBACK (on_document_saved),
+                    activatable);
+}
+
+static void
+cossa_view_activatable_deactivate (GeditViewActivatable *activatable)
+{
+  CossaPluginPrivate *priv;
+  GeditDocument *doc;
+
+  gedit_debug (DEBUG_PLUGINS);
+
+  priv = COSSA_PLUGIN (activatable)->priv;
+
+  doc = GEDIT_DOCUMENT (gtk_text_view_get_buffer (GTK_TEXT_VIEW (priv->view)));
+
+  g_signal_handlers_disconnect_by_func (doc, on_document_saved, activatable);
+}
+
+static void
+gedit_view_activatable_iface_init (GeditViewActivatableInterface *iface)
+{
+  iface->activate = cossa_view_activatable_activate;
+  iface->deactivate = cossa_view_activatable_deactivate;
+}
+
+static void
 preview_activated_cb (GtkAction *action,
                       gpointer   user_data)
 {
@@ -254,7 +321,7 @@ preview_activated_cb (GtkAction *action,
 
   priv = COSSA_PLUGIN (user_data)->priv;
   cur_view = gedit_window_get_active_view (priv->window);
-  window = g_hash_table_lookup (priv->previews, cur_view);
+  window = g_object_get_data (G_OBJECT (cur_view), COSSA_WINDOW_PREVIEW);
 
   if (!window)
     {
@@ -284,7 +351,7 @@ preview_activated_cb (GtkAction *action,
 
       gtk_window_set_default_size (GTK_WINDOW (window), 400, 400);
 
-      g_hash_table_insert (priv->previews, cur_view, window);
+      g_object_set_data (G_OBJECT (cur_view), COSSA_WINDOW_PREVIEW, window);
     }
 
   gtk_widget_show (window);
@@ -299,4 +366,7 @@ peas_register_types (PeasObjectModule *module)
   peas_object_module_register_extension_type (module,
                                               GEDIT_TYPE_WINDOW_ACTIVATABLE,
                                               COSSA_TYPE_PLUGIN);
+  peas_object_module_register_extension_type (module,
+                                              GEDIT_TYPE_VIEW_ACTIVATABLE,
+                                              COSSA_TYPE_PLUGIN);
 }