]> www.fi.muni.cz Git - evince.git/blobdiff - shell/ev-sidebar-bookmarks.c
Hook up bookmarks navigation
[evince.git] / shell / ev-sidebar-bookmarks.c
index e29975a680d0818f5e3fc97d79a059e27daa5fc4..29851b91f579ade4411043f02abda9bf4645fac8 100644 (file)
 #include <gtk/gtk.h>
 
 #include "ev-sidebar-bookmarks.h"
+#include "ev-document-bookmarks.h"
+
+/* Amount of time we devote to each iteration of the idle, in microseconds */
+#define IDLE_WORK_LENGTH 5000
+
+typedef struct {
+       EvDocumentBookmarksIter *bookmarks_iter;
+       GtkTreeIter *tree_iter;
+} IdleStackData;
 
 struct _EvSidebarBookmarksPrivate {
        GtkWidget *tree_view;
        GtkTreeModel *model;
        EvDocument *current_document;
+       GList *idle_stack;
+       guint idle_id;
 };
 
 enum {
        BOOKMARKS_COLUMN_MARKUP,
-       BOOKMARKS_COLUMN_OUTLINE,
        BOOKMARKS_COLUMN_PAGE_NUM,
        BOOKMARKS_COLUMN_PAGE_VALID,
+       BOOKMARKS_COLUMN_BOOKMARK,
        BOOKMARKS_COLUMN_NUM_COLUMNS
 };
 
@@ -54,17 +65,58 @@ G_DEFINE_TYPE (EvSidebarBookmarks, ev_sidebar_bookmarks, GTK_TYPE_VBOX)
 #define EV_SIDEBAR_BOOKMARKS_GET_PRIVATE(object) \
        (G_TYPE_INSTANCE_GET_PRIVATE ((object), EV_TYPE_SIDEBAR_BOOKMARKS, EvSidebarBookmarksPrivate))
 
+
+static void
+ev_sidebar_bookmarks_destroy (GtkObject *object)
+{
+       EvSidebarBookmarks *ev_sidebar_bookmarks = (EvSidebarBookmarks *) object;
+
+       g_print ("ev_sidebar_bookmarks_destroy!\n");
+       ev_sidebar_bookmarks_clear_document (ev_sidebar_bookmarks);
+}
+
 static void
 ev_sidebar_bookmarks_class_init (EvSidebarBookmarksClass *ev_sidebar_bookmarks_class)
 {
        GObjectClass *g_object_class;
+       GtkObjectClass *gtk_object_class;
 
        g_object_class = G_OBJECT_CLASS (ev_sidebar_bookmarks_class);
+       gtk_object_class = GTK_OBJECT_CLASS (ev_sidebar_bookmarks_class);
 
-       g_type_class_add_private (g_object_class, sizeof (EvSidebarBookmarksPrivate));
+       gtk_object_class->destroy = ev_sidebar_bookmarks_destroy;
 
+       g_type_class_add_private (g_object_class, sizeof (EvSidebarBookmarksPrivate));
 }
 
+static void
+selection_changed_cb (GtkTreeSelection   *selection,
+                     EvSidebarBookmarks *ev_sidebar_bookmarks)
+{
+       EvDocument *document;
+       GtkTreeModel *model;
+       GtkTreeIter iter;
+
+       g_return_if_fail (EV_IS_SIDEBAR_BOOKMARKS (ev_sidebar_bookmarks));
+
+       document = EV_DOCUMENT (ev_sidebar_bookmarks->priv->current_document);
+       g_return_if_fail (ev_sidebar_bookmarks->priv->current_document != NULL);
+
+       if (gtk_tree_selection_get_selected (selection, &model, &iter)) {
+               EvBookmark *bookmark;
+               GValue value = {0, };
+               int page;
+
+               gtk_tree_model_get_value (model, &iter,
+                                         BOOKMARKS_COLUMN_BOOKMARK, &value);
+
+               bookmark = EV_BOOKMARK (g_value_get_object (&value));
+               g_return_if_fail (bookmark != NULL);
+
+               page = ev_bookmark_get_page (bookmark);
+               ev_document_set_page (document, page);
+       }
+}
 
 static void
 ev_sidebar_bookmarks_construct (EvSidebarBookmarks *ev_sidebar_bookmarks)
@@ -73,13 +125,14 @@ ev_sidebar_bookmarks_construct (EvSidebarBookmarks *ev_sidebar_bookmarks)
        GtkWidget *swindow;
        GtkTreeViewColumn *column;
        GtkCellRenderer *renderer;
+       GtkTreeSelection *selection;
 
        priv = ev_sidebar_bookmarks->priv;
        priv->model = (GtkTreeModel *) gtk_tree_store_new (BOOKMARKS_COLUMN_NUM_COLUMNS,
                                                           G_TYPE_STRING,
-                                                          G_TYPE_POINTER,
                                                           G_TYPE_INT,
-                                                          G_TYPE_BOOLEAN);
+                                                          G_TYPE_BOOLEAN,
+                                                          G_TYPE_OBJECT);
 
        swindow = gtk_scrolled_window_new (NULL, NULL);
 
@@ -89,14 +142,15 @@ ev_sidebar_bookmarks_construct (EvSidebarBookmarks *ev_sidebar_bookmarks)
                                             GTK_SHADOW_IN);
 
        /* Create tree view */
-       priv->tree_view = gtk_tree_view_new ();
+       priv->tree_view = gtk_tree_view_new_with_model (priv->model);
+       g_object_unref (priv->model);
        gtk_tree_view_set_headers_visible (GTK_TREE_VIEW (priv->tree_view), FALSE);
        gtk_container_add (GTK_CONTAINER (swindow), priv->tree_view);
        gtk_tree_view_set_rules_hint (GTK_TREE_VIEW (priv->tree_view), TRUE);
 
        gtk_box_pack_start (GTK_BOX (ev_sidebar_bookmarks), swindow, TRUE, TRUE, 0);
        gtk_widget_show_all (GTK_WIDGET (ev_sidebar_bookmarks));
-               
+
        column = gtk_tree_view_column_new ();
        gtk_tree_view_column_set_expand (GTK_TREE_VIEW_COLUMN (column), TRUE);
        gtk_tree_view_append_column (GTK_TREE_VIEW (priv->tree_view), column);
@@ -109,13 +163,18 @@ ev_sidebar_bookmarks_construct (EvSidebarBookmarks *ev_sidebar_bookmarks)
        gtk_tree_view_column_set_attributes (GTK_TREE_VIEW_COLUMN (column), renderer,
                                             "markup", BOOKMARKS_COLUMN_MARKUP,
                                             NULL);
-               
+
        renderer = gtk_cell_renderer_text_new ();
        gtk_tree_view_column_pack_end (GTK_TREE_VIEW_COLUMN (column), renderer, FALSE);
        gtk_tree_view_column_set_cell_data_func (GTK_TREE_VIEW_COLUMN (column), renderer,
                                                 (GtkTreeCellDataFunc) bookmarks_page_num_func,
                                                 NULL, NULL);
 
+
+       selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (priv->tree_view));
+       g_signal_connect (selection, "changed",
+                         G_CALLBACK (selection_changed_cb),
+                         ev_sidebar_bookmarks);
 }
 
 static void
@@ -167,18 +226,166 @@ ev_sidebar_bookmarks_new (void)
        return ev_sidebar_bookmarks;
 }
 
+static void
+stack_data_free (IdleStackData       *stack_data,
+                EvDocumentBookmarks *document_bookmarks)
+{
+       g_assert (stack_data);
+
+       if (stack_data->tree_iter)
+               gtk_tree_iter_free (stack_data->tree_iter);
+       if (stack_data->bookmarks_iter)
+               ev_document_bookmarks_free_iter (document_bookmarks, stack_data->bookmarks_iter);
+       g_free (stack_data);
+}
+
+static gboolean
+do_one_iteration (EvSidebarBookmarks *ev_sidebar_bookmarks)
+{
+       EvSidebarBookmarksPrivate *priv = ev_sidebar_bookmarks->priv;
+       EvBookmark *bookmark;
+       IdleStackData *stack_data;
+       GtkTreeIter tree_iter;
+       EvDocumentBookmarksIter *child_iter;
+       gint page;
+
+       g_assert (priv->idle_stack);
+
+       stack_data = (IdleStackData *) priv->idle_stack->data;
+
+       bookmark = ev_document_bookmarks_get_bookmark
+               (EV_DOCUMENT_BOOKMARKS (priv->current_document),
+                stack_data->bookmarks_iter);
+       if (bookmark == NULL) {
+               g_warning ("mismatch in model.  No values available at current level.\n");
+               return FALSE;
+       }
+
+       page = ev_bookmark_get_page (bookmark);
+       gtk_tree_store_append (GTK_TREE_STORE (priv->model), &tree_iter, stack_data->tree_iter);
+       gtk_tree_store_set (GTK_TREE_STORE (priv->model), &tree_iter,
+                           BOOKMARKS_COLUMN_MARKUP, ev_bookmark_get_title (bookmark),
+                           BOOKMARKS_COLUMN_PAGE_NUM, page,
+                           /* FIXME: Handle links for real. */
+                           BOOKMARKS_COLUMN_PAGE_VALID, (page >= 0),
+                           BOOKMARKS_COLUMN_BOOKMARK, bookmark,
+                           -1);
+       g_object_unref (bookmark);
+       
+       child_iter = ev_document_bookmarks_get_child (EV_DOCUMENT_BOOKMARKS (priv->current_document),
+                                                     stack_data->bookmarks_iter);
+       if (child_iter) {
+               IdleStackData *child_stack_data;
+
+               child_stack_data = g_new0 (IdleStackData, 1);
+               child_stack_data->tree_iter = gtk_tree_iter_copy (&tree_iter);
+               child_stack_data->bookmarks_iter = child_iter;
+               priv->idle_stack = g_list_prepend (priv->idle_stack, child_stack_data);
+
+               return TRUE;
+       }
+
+       /* We don't have children, so we need to walk to the next node */
+       while (TRUE) {
+               if (ev_document_bookmarks_next (EV_DOCUMENT_BOOKMARKS (priv->current_document),
+                                               stack_data->bookmarks_iter))
+                       return TRUE;
+
+               /* We're done with this level.  Pop it off the idle stack and go
+                * to the next level */
+               stack_data_free (stack_data, EV_DOCUMENT_BOOKMARKS (priv->current_document));
+               priv->idle_stack = g_list_delete_link (priv->idle_stack, priv->idle_stack);
+               if (priv->idle_stack == NULL)
+                       return FALSE;
+               stack_data = priv->idle_stack->data;
+       }
+}
+
+static gboolean
+populate_bookmarks_idle (gpointer data)
+{
+       GTimer *timer;
+       gint i;
+       gulong microseconds = 0;
+
+       EvSidebarBookmarks *ev_sidebar_bookmarks = (EvSidebarBookmarks *)data;
+       EvSidebarBookmarksPrivate *priv = ev_sidebar_bookmarks->priv;
+
+       if (priv->idle_stack == NULL) {
+               priv->idle_id = 0;
+               return FALSE;
+       }
+
+       /* The amount of time that reading the next bookmark takes is wildly
+        * inconsistent, so we constrain it to IDLE_WORK_LENGTH microseconds per
+        * idle iteration. */
+       timer = g_timer_new ();
+       i = 0;
+       g_timer_start (timer);
+       while (do_one_iteration (ev_sidebar_bookmarks)) {
+               i++;
+               g_timer_elapsed (timer, &microseconds);
+               if (microseconds > IDLE_WORK_LENGTH)
+                       break;
+       }
+       g_timer_destroy (timer);
+#if 0
+       g_print ("%d rows done this idle in %d\n", i, (int)microseconds);
+#endif
+       return TRUE;
+}
+
+void
+ev_sidebar_bookmarks_clear_document (EvSidebarBookmarks *sidebar_bookmarks)
+{
+       EvSidebarBookmarksPrivate *priv;
+
+       g_return_if_fail (EV_IS_SIDEBAR_BOOKMARKS (sidebar_bookmarks));
+
+       priv = sidebar_bookmarks->priv;
+       if (priv->current_document) {
+               g_object_unref (priv->current_document);
+               priv->current_document = NULL;
+       }
+       gtk_tree_store_clear (GTK_TREE_STORE (priv->model));
+
+       /* Clear the idle */
+       if (priv->idle_id != 0) {
+               g_source_remove (priv->idle_id);
+               priv->idle_id = 0;
+       }
+       g_list_foreach (priv->idle_stack, (GFunc) stack_data_free, priv->current_document);
+       g_list_free (priv->idle_stack);
+       priv->idle_stack = NULL;
+
+}
+
 void
 ev_sidebar_bookmarks_set_document (EvSidebarBookmarks *sidebar_bookmarks,
                                   EvDocument         *document)
 {
        EvSidebarBookmarksPrivate *priv;
+       EvDocumentBookmarksIter *bookmarks_iter;
 
        g_return_if_fail (EV_IS_SIDEBAR_BOOKMARKS (sidebar_bookmarks));
        g_return_if_fail (EV_IS_DOCUMENT (document));
 
        priv = sidebar_bookmarks->priv;
 
-       g_assert (priv->current_document == NULL);
+       g_object_ref (document);
+       ev_sidebar_bookmarks_clear_document (sidebar_bookmarks);
 
+       priv->current_document = document;
+       bookmarks_iter = ev_document_bookmarks_begin_read (EV_DOCUMENT_BOOKMARKS (document));
+       if (bookmarks_iter) {
+               IdleStackData *stack_data;
+
+               stack_data = g_new0 (IdleStackData, 1);
+               stack_data->bookmarks_iter = bookmarks_iter;
+               stack_data->tree_iter = NULL;
+
+               priv->idle_stack = g_list_prepend (priv->idle_stack, stack_data);
+               priv->idle_id = g_idle_add (populate_bookmarks_idle, sidebar_bookmarks);
+       }
 }