Use drag-motion in the arrow buttons to scroll when hovering
Code copied from Nautilus. I think we'll have to tweak the timers a bit;
they seem a bit short right now.
diff --git a/gtk/gtkpathbar.c b/gtk/gtkpathbar.c
index a74c89c..5a3c6b7 100644
--- a/gtk/gtkpathbar.c
+++ b/gtk/gtkpathbar.c
@@ -161,6 +161,8 @@
static void gtk_path_bar_scroll_up (GtkPathBar *path_bar);
static void gtk_path_bar_scroll_down (GtkPathBar *path_bar);
static void gtk_path_bar_stop_scrolling (GtkPathBar *path_bar);
+static gboolean gtk_path_bar_scroll_timeout (GtkPathBar *path_bar);
+
static gboolean gtk_path_bar_slider_up_defocus (GtkWidget *widget,
GdkEventButton *event,
GtkPathBar *path_bar);
@@ -226,6 +228,69 @@
}
static void
+slider_drag_motion_cb (GtkWidget *widget,
+ GdkDragContext *context,
+ gint x,
+ gint y,
+ guint time,
+ GtkPathBar *path_bar)
+{
+ GtkPathBarPrivate *priv = path_bar->priv;
+ GtkSettings *settings;
+ guint timeout;
+
+ if (priv->timer == 0)
+ {
+ settings = gtk_widget_get_settings (widget);
+
+ g_object_get (settings, "gtk-timeout-expand", &timeout, NULL);
+
+ priv->need_timer = TRUE;
+ priv->timer = gdk_threads_add_timeout (timeout, (GSourceFunc) gtk_path_bar_scroll_timeout, path_bar);
+
+ priv->scrolling_up = (widget == priv->up_slider_button);
+ priv->scrolling_down = (widget == priv->down_slider_button);
+ }
+}
+
+static void
+slider_drag_leave_cb (GtkWidget *widget,
+ GdkDragContext *context,
+ guint time,
+ GtkPathBar *path_bar)
+{
+ gtk_path_bar_stop_scrolling (path_bar);
+}
+
+static void
+setup_dnd_in_arrows (GtkPathBar *path_bar)
+{
+ GtkPathBarPrivate *priv = path_bar->priv;
+
+ gtk_drag_dest_set (GTK_WIDGET (priv->up_slider_button), 0, NULL, 0, 0);
+ gtk_drag_dest_set_track_motion (GTK_WIDGET (priv->up_slider_button), TRUE);
+ g_signal_connect (priv->up_slider_button,
+ "drag-motion",
+ G_CALLBACK (slider_drag_motion_cb),
+ path_bar);
+ g_signal_connect (priv->up_slider_button,
+ "drag-leave",
+ G_CALLBACK (slider_drag_leave_cb),
+ path_bar);
+
+ gtk_drag_dest_set (GTK_WIDGET (priv->down_slider_button), 0, NULL, 0, 0);
+ gtk_drag_dest_set_track_motion (GTK_WIDGET (priv->down_slider_button), TRUE);
+ g_signal_connect (priv->down_slider_button,
+ "drag-motion",
+ G_CALLBACK (slider_drag_motion_cb),
+ path_bar);
+ g_signal_connect (priv->down_slider_button,
+ "drag-leave",
+ G_CALLBACK (slider_drag_leave_cb),
+ path_bar);
+}
+
+static void
gtk_path_bar_init (GtkPathBar *path_bar)
{
GtkPathBarPrivate *priv;
@@ -261,6 +326,8 @@
setup_basic_folders (path_bar);
+ setup_dnd_in_arrows (path_bar);
+
gtk_style_context_add_class (gtk_widget_get_style_context (GTK_WIDGET (path_bar)),
GTK_STYLE_CLASS_LINKED);
}
@@ -1240,7 +1307,7 @@
priv->need_timer = FALSE;
priv->timer = gdk_threads_add_timeout (timeout * SCROLL_DELAY_FACTOR,
- (GSourceFunc)gtk_path_bar_scroll_timeout,
+ (GSourceFunc) gtk_path_bar_scroll_timeout,
path_bar);
}
else
