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authorJeffrey Stedfast <fejj@ximian.com>2004-03-20 07:07:16 +0800
committerJeffrey Stedfast <fejj@src.gnome.org>2004-03-20 07:07:16 +0800
commitcce45ea42e294b90a1a5f8ac0a11f32872491d48 (patch)
tree765aded9bd01aba8e40807fdd126a0992e68b7df
parentcbf19122aa77b1b420837cea065b299b73f9934a (diff)
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Fixes bug #54800.
2004-03-19 Jeffrey Stedfast <fejj@ximian.com> Fixes bug #54800. * em-folder-tree.c (tree_drag_drop): Remove the autoscroll timeout. (tree_drag_leave): Remove the autoscroll timeout. (tree_autoscroll): New autoscroll timeout callback - automagically scrolls the treeview if appropriate. (tree_drag_motion): Setup the autoscroll timeout. svn path=/trunk/; revision=25134
-rw-r--r--mail/ChangeLog11
-rw-r--r--mail/em-folder-tree.c64
2 files changed, 73 insertions, 2 deletions
diff --git a/mail/ChangeLog b/mail/ChangeLog
index 6f2b9d7275..faea109439 100644
--- a/mail/ChangeLog
+++ b/mail/ChangeLog
@@ -1,3 +1,14 @@
+2004-03-19 Jeffrey Stedfast <fejj@ximian.com>
+
+ Fixes bug #54800.
+
+ * em-folder-tree.c (tree_drag_drop): Remove the autoscroll
+ timeout.
+ (tree_drag_leave): Remove the autoscroll timeout.
+ (tree_autoscroll): New autoscroll timeout callback - automagically
+ scrolls the treeview if appropriate.
+ (tree_drag_motion): Setup the autoscroll timeout.
+
2004-03-19 Not Zed <NotZed@Ximian.com>
* mail-component.c (mail_component_remove_store): ref the store
diff --git a/mail/em-folder-tree.c b/mail/em-folder-tree.c
index 2e368a14d3..f1f79bfd15 100644
--- a/mail/em-folder-tree.c
+++ b/mail/em-folder-tree.c
@@ -82,6 +82,8 @@ struct _EMFolderTreePrivate {
guint save_state_id;
+ guint autoscroll_id;
+
guint loading_row_id;
guint loaded_row_id;
@@ -387,7 +389,12 @@ em_folder_tree_destroy (GtkObject *obj)
g_source_remove (priv->save_state_id);
emft_save_state (emft);
}
-
+
+ if (priv->autoscroll_id != 0) {
+ g_source_remove (priv->autoscroll_id);
+ priv->autoscroll_id = 0;
+ }
+
priv->treeview = NULL;
priv->model = NULL;
@@ -1224,6 +1231,11 @@ tree_drag_drop (GtkWidget *widget, GdkDragContext *context, int x, int y, guint
GtkTreePath *path;
GdkAtom target;
+ if (priv->autoscroll_id != 0) {
+ g_source_remove (priv->autoscroll_id);
+ priv->autoscroll_id = 0;
+ }
+
if (!gtk_tree_view_get_path_at_pos (priv->treeview, x, y, &path, &column, &cell_x, &cell_y))
return FALSE;
@@ -1251,22 +1263,70 @@ tree_drag_end (GtkWidget *widget, GdkDragContext *context, EMFolderTree *emft)
static void
tree_drag_leave (GtkWidget *widget, GdkDragContext *context, guint time, EMFolderTree *emft)
{
+ struct _EMFolderTreePrivate *priv = emft->priv;
+
+ if (priv->autoscroll_id != 0) {
+ g_source_remove (priv->autoscroll_id);
+ priv->autoscroll_id = 0;
+ }
+
gtk_tree_view_set_drag_dest_row(emft->priv->treeview, NULL, GTK_TREE_VIEW_DROP_BEFORE);
}
+
+#define SCROLL_EDGE_SIZE 15
+
+static gboolean
+tree_autoscroll (EMFolderTree *emft)
+{
+ struct _EMFolderTreePrivate *priv = emft->priv;
+ GtkAdjustment *vadjustment;
+ GdkRectangle rect;
+ GdkWindow *window;
+ int offset, y;
+ float value;
+
+ /* get the y pointer position relative to the treeview */
+ window = gtk_tree_view_get_bin_window (priv->treeview);
+ gdk_window_get_pointer (window, NULL, &y, NULL);
+
+ /* rect is in coorinates relative to the scrolled window relative to the treeview */
+ gtk_tree_view_get_visible_rect (priv->treeview, &rect);
+
+ /* move y into the same coordinate system as rect */
+ y += rect.y;
+
+ /* see if we are near the top edge */
+ if ((offset = y - (rect.y + 2 * SCROLL_EDGE_SIZE)) > 0) {
+ /* see if we are near the bottom edge */
+ if ((offset = y - (rect.y + rect.height - 2 * SCROLL_EDGE_SIZE)) < 0)
+ return TRUE;
+ }
+
+ vadjustment = gtk_tree_view_get_vadjustment (priv->treeview);
+
+ value = CLAMP (vadjustment->value + offset, 0.0, vadjustment->upper - vadjustment->page_size);
+ gtk_adjustment_set_value (vadjustment, value);
+
+ return TRUE;
+}
+
static gboolean
tree_drag_motion (GtkWidget *widget, GdkDragContext *context, int x, int y, guint time, EMFolderTree *emft)
{
struct _EMFolderTreePrivate *priv = emft->priv;
GtkTreeViewDropPosition pos;
- GtkTreePath *path;
GdkDragAction action = 0;
+ GtkTreePath *path;
GdkAtom target;
int i;
if (!gtk_tree_view_get_dest_row_at_pos(priv->treeview, x, y, &path, &pos))
return FALSE;
+ if (priv->autoscroll_id == 0)
+ priv->autoscroll_id = g_timeout_add (150, (GSourceFunc) tree_autoscroll, emft);
+
target = emft_drop_target(emft, context, path);
if (target != GDK_NONE) {
for (i=0; i<NUM_DROP_TYPES; i++) {