From c1aacb9d9d33dee04078b90e84c78d89bd42f9dc Mon Sep 17 00:00:00 2001
From: Benedikt Meurer <benny@xfce.org>
Date: Mon, 6 Feb 2006 18:57:54 +0000
Subject: [PATCH] 2006-02-06 Benedikt Meurer <benny@xfce.org>
* thunar/thunar-standard-view.c: Autoscroll while dragging to a
ThunarStandardView widget. Bug #1304.
(Old svn revision: 19770)
---
ChangeLog | 5 +++
thunar/thunar-standard-view.c | 76 +++++++++++++++++++++++++++++++++++
2 files changed, 81 insertions(+)
diff --git a/ChangeLog b/ChangeLog
index 7df92ecf3..00f49321c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2006-02-06 Benedikt Meurer <benny@xfce.org>
+
+ * thunar/thunar-standard-view.c: Autoscroll while dragging to a
+ ThunarStandardView widget. Bug #1304.
+
2006-02-06 Benedikt Meurer <benny@xfce.org>
* thunar/thunar-templates-action.c: Use "show" instead of "map" to
diff --git a/thunar/thunar-standard-view.c b/thunar/thunar-standard-view.c
index 444abfb26..dd4aeb50b 100644
--- a/thunar/thunar-standard-view.c
+++ b/thunar/thunar-standard-view.c
@@ -218,6 +218,8 @@ static void thunar_standard_view_error (Thu
const GError *error,
ThunarStandardView *standard_view);
static void thunar_standard_view_loading_unbound (gpointer user_data);
+static gboolean thunar_standard_view_drag_scroll_timer (gpointer user_data);
+static void thunar_standard_view_drag_scroll_timer_destroy (gpointer user_data);
static gboolean thunar_standard_view_drag_timer (gpointer user_data);
static void thunar_standard_view_drag_timer_destroy (gpointer user_data);
@@ -251,6 +253,7 @@ struct _ThunarStandardViewPrivate
/* right-click drag/popup support */
GList *drag_path_list;
+ gint drag_scroll_timer_id;
gint drag_timer_id;
gint drag_x;
gint drag_y;
@@ -479,6 +482,7 @@ static void
thunar_standard_view_init (ThunarStandardView *standard_view)
{
standard_view->priv = THUNAR_STANDARD_VIEW_GET_PRIVATE (standard_view);
+ standard_view->priv->drag_scroll_timer_id = -1;
standard_view->priv->drag_timer_id = -1;
/* grab a reference on the preferences */
@@ -615,6 +619,10 @@ thunar_standard_view_dispose (GObject *object)
if (G_UNLIKELY (standard_view->loading_binding != NULL))
exo_binding_unbind (standard_view->loading_binding);
+ /* be sure to cancel any pending drag autoscroll timer */
+ if (G_UNLIKELY (standard_view->priv->drag_scroll_timer_id >= 0))
+ g_source_remove (standard_view->priv->drag_scroll_timer_id);
+
/* be sure to cancel any pending drag timer */
if (G_UNLIKELY (standard_view->priv->drag_timer_id >= 0))
g_source_remove (standard_view->priv->drag_timer_id);
@@ -2442,6 +2450,10 @@ thunar_standard_view_drag_leave (GtkWidget *widget,
/* reset the drop-file for the icon renderer */
g_object_set (G_OBJECT (standard_view->icon_renderer), "drop-file", NULL, NULL);
+ /* stop any running drag autoscroll timer */
+ if (G_UNLIKELY (standard_view->priv->drag_scroll_timer_id >= 0))
+ g_source_remove (standard_view->priv->drag_scroll_timer_id);
+
/* disable the drop highlighting around the view */
if (G_LIKELY (standard_view->priv->drop_highlight))
{
@@ -2529,6 +2541,14 @@ thunar_standard_view_drag_motion (GtkWidget *view,
{
/* check whether we can drop at (x,y) */
thunar_standard_view_get_dest_actions (standard_view, context, x, y, time, NULL);
+
+ /* start the drag autoscroll timer if not already running */
+ if (G_UNLIKELY (standard_view->priv->drag_scroll_timer_id < 0))
+ {
+ /* schedule the drag autoscroll timer */
+ standard_view->priv->drag_scroll_timer_id = g_timeout_add_full (G_PRIORITY_LOW, 50, thunar_standard_view_drag_scroll_timer,
+ standard_view, thunar_standard_view_drag_scroll_timer_destroy);
+ }
}
return TRUE;
@@ -2603,6 +2623,10 @@ thunar_standard_view_drag_end (GtkWidget *view,
GdkDragContext *context,
ThunarStandardView *standard_view)
{
+ /* stop any running drag autoscroll timer */
+ if (G_UNLIKELY (standard_view->priv->drag_scroll_timer_id >= 0))
+ g_source_remove (standard_view->priv->drag_scroll_timer_id);
+
/* release the list of dragged URIs */
thunar_vfs_path_list_free (standard_view->priv->drag_path_list);
standard_view->priv->drag_path_list = NULL;
@@ -2655,6 +2679,58 @@ thunar_standard_view_loading_unbound (gpointer user_data)
+static gboolean
+thunar_standard_view_drag_scroll_timer (gpointer user_data)
+{
+ ThunarStandardView *standard_view = THUNAR_STANDARD_VIEW (user_data);
+ GtkAdjustment *vadjustment;
+ gfloat value;
+ gint offset;
+ gint y, h;
+
+ GDK_THREADS_ENTER ();
+
+ /* verify that we are realized */
+ if (G_LIKELY (GTK_WIDGET_REALIZED (standard_view)))
+ {
+ /* determine pointer location and window geometry */
+ gdk_window_get_pointer (GTK_BIN (standard_view)->child->window, NULL, &y, NULL);
+ gdk_window_get_geometry (GTK_BIN (standard_view)->child->window, NULL, NULL, NULL, &h, NULL);
+
+ /* check if we are near the edge */
+ offset = y - (2 * 20);
+ if (G_UNLIKELY (offset > 0))
+ offset = MAX (y - (h - 2 * 20), 0);
+
+ /* change the vertical adjustment appropriately */
+ if (G_UNLIKELY (offset != 0))
+ {
+ /* determine the vertical adjustment */
+ vadjustment = gtk_scrolled_window_get_vadjustment (GTK_SCROLLED_WINDOW (standard_view));
+
+ /* determine the new value */
+ value = CLAMP (vadjustment->value + 2 * offset, vadjustment->lower, vadjustment->upper - vadjustment->page_size);
+
+ /* apply the new value */
+ gtk_adjustment_set_value (vadjustment, value);
+ }
+ }
+
+ GDK_THREADS_LEAVE ();
+
+ return TRUE;
+}
+
+
+
+static void
+thunar_standard_view_drag_scroll_timer_destroy (gpointer user_data)
+{
+ THUNAR_STANDARD_VIEW (user_data)->priv->drag_scroll_timer_id = -1;
+}
+
+
+
static gboolean
thunar_standard_view_drag_timer (gpointer user_data)
{
--
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