[gitg/wip/guyou/path-filtering: 40/119] Create a "path-activated" signal and connect it

[Alberto Fanjul <albfan src gnome org>]

commit 4f7ba9ce1524af463e85502935f21883240c8d1e
Author: Guilhem Bonnefille <guilhem bonnefille gmail com>
Date:   Sun Apr 26 11:12:27 2009 +0200

    Create a "path-activated" signal and connect it
    
    When activating the "Filter" action inside the Tree view, the selected path is used to filter the history 
view.

 gitg/gitg-revision-tree-view.c | 43 ++++++++++++++++++++++++++++++++++++++----
 gitg/gitg-revision-tree-view.h |  2 ++
 gitg/gitg-window.c             | 15 ++++++++++++++-
 3 files changed, 55 insertions(+), 5 deletions(-)
---
diff --git a/gitg/gitg-revision-tree-view.c b/gitg/gitg-revision-tree-view.c
index b24a46c9..6770ebad 100644
--- a/gitg/gitg-revision-tree-view.c
+++ b/gitg/gitg-revision-tree-view.c
@@ -43,6 +43,15 @@ enum {
        PROP_REVISION
 };
 
+/* Signals */
+enum
+{
+       PATH_ACTIVATED,
+       NUM_SIGNALS
+};
+
+static guint signals[NUM_SIGNALS];
+
 struct _GitgRevisionTreeViewPrivate
 {
        GtkUIManager *ui_manager;
@@ -444,6 +453,16 @@ gitg_revision_tree_view_class_init(GitgRevisionTreeViewClass *klass)
                                                                      GITG_TYPE_REVISION,
                                                                      G_PARAM_READWRITE));
        
+       signals[PATH_ACTIVATED] =
+               g_signal_new("path-activated",
+                       G_OBJECT_CLASS_TYPE (object_class),
+                       G_SIGNAL_RUN_LAST,
+                       G_STRUCT_OFFSET (GitgRevisionTreeViewClass, path_activated),
+                       NULL, NULL,
+                       g_cclosure_marshal_VOID__POINTER,
+                       G_TYPE_NONE,
+                       1, G_TYPE_POINTER);
+
        g_type_class_add_private(object_class, sizeof(GitgRevisionTreeViewPrivate));
 }
 
@@ -664,8 +683,11 @@ popup_tree_menu(GitgRevisionTreeView *tree_view, GdkEventButton *event)
        GList *rows = gtk_tree_selection_get_selected_rows(selection, &model);  
        gint num = g_list_length(rows);
        
-       if (num != 1)
+       /* We only support single selection for path filtering */
+       if (num != 1) {
+               g_list_free(rows);
                return FALSE;
+       }
 
        GtkWidget *wd = gtk_ui_manager_get_widget(tree_view->priv->ui_manager, "/ui/popup_file_tree");
        
@@ -704,10 +726,23 @@ on_filter_path(GtkAction *action, GitgRevisionTreeView *tree_view)
        GList *rows = gtk_tree_selection_get_selected_rows(selection, &model);  
        gint num = g_list_length(rows);
        
-       if (num == 0)
+       /* We only support single selection for path filtering */
+       if (num != 1) {
+               g_list_free(rows);
                return;
-  /* TODO */
-  g_message("Not yet implemented");
+       }
+
+       /* Retrieve the selected file's path */
+       gchar *filter_path = NULL;
+       GtkTreePath *path = (GtkTreePath *)rows->data;
+       GtkTreeIter iter;
+       gtk_tree_model_get_iter(model, &iter, path);
+       filter_path = node_path(model, &iter);
+       gtk_tree_path_free(path);       
+       g_list_free(rows);
+
+       /* Emit the signal */
+       g_signal_emit(tree_view, signals[PATH_ACTIVATED], 0, filter_path);
 }
 
 static void
diff --git a/gitg/gitg-revision-tree-view.h b/gitg/gitg-revision-tree-view.h
index ed69c2b7..f3406100 100644
--- a/gitg/gitg-revision-tree-view.h
+++ b/gitg/gitg-revision-tree-view.h
@@ -49,6 +49,8 @@ struct _GitgRevisionTreeView {
 
 struct _GitgRevisionTreeViewClass {
        GtkHPanedClass parent_class;
+       
+       void (* path_activated) (GitgRevisionTreeView *revision_tree_view, gchar *path);
 };
 
 GType gitg_revision_tree_view_get_type (void) G_GNUC_CONST;
diff --git a/gitg/gitg-window.c b/gitg/gitg-window.c
index ee1fe262..84f177e9 100644
--- a/gitg/gitg-window.c
+++ b/gitg/gitg-window.c
@@ -326,6 +326,18 @@ on_path_activate(GtkEntry *entry, GitgWindow *window)
        filter_repository(window);
 }
 
+static void
+on_path_activated(GitgRevisionTreeView *view, gchar *path, GitgWindow *window)
+{
+       /* Set the path in the widget */
+       if (path == NULL)
+               path = "";
+       gtk_entry_set_text(window->priv->entry_path, path);
+       
+       /* Fire the filtering */
+       filter_repository(window);
+}
+
 static void
 on_branches_combo_changed(GtkComboBox *combo, GitgWindow *window)
 {
@@ -429,7 +441,8 @@ gitg_window_parser_finished(GtkBuildable *buildable, GtkBuilder *builder)
        GtkTreeSelection *selection = gtk_tree_view_get_selection(window->priv->tree_view);
        g_signal_connect(selection, "changed", G_CALLBACK(on_selection_changed), window);
        g_signal_connect(window->priv->revision_view, "parent-activated", G_CALLBACK(on_parent_activated), 
window);
-
+       g_signal_connect(window->priv->revision_tree_view, "path-activated", G_CALLBACK(on_path_activated), 
window);
+       
        g_signal_connect(window->priv->entry_path, "activate", G_CALLBACK(on_path_activate), window);
 
        g_signal_connect(window->priv->tree_view, "motion-notify-event", G_CALLBACK(on_tree_view_motion), 
window);