Imported Upstream version 5.0.0.42

Former-commit-id: fd56571888259555122d8a0f58c68838229cea2b

external/bockbuild/packages/patches/gtk/0022-Use-start-end-phase-in-event-handling.patch

@@ -0,0 +1,48 @@
+From a4e5fe549e5497a7e5ae7eecae4fc654330500f2 Mon Sep 17 00:00:00 2001
+From: Kristian Rietveld <kris@lanedo.com>
+Date: Fri, 28 Sep 2012 06:18:49 +0200
+Subject: [PATCH 22/68] Use start/end phase in event handling
+
+Should make things work better on Mountain Lion.
+---
+ gtk/gtkscrolledwindow.c |   13 +++++--------
+ 1 file changed, 5 insertions(+), 8 deletions(-)
+
+diff --git a/gtk/gtkscrolledwindow.c b/gtk/gtkscrolledwindow.c
+index 5341b50..92e75a0 100644
+--- a/gtk/gtkscrolledwindow.c
++++ b/gtk/gtkscrolledwindow.c
+@@ -2010,12 +2010,10 @@ gtk_scrolled_window_scroll_event (GtkWidget      *widget,
+       if (old_overshoot_x != 0 || old_overshoot_y != 0)
+         is_overshot = TRUE;
+
+-      /* In case the view is not overshot, no snap back is active
+-       * and this event is not a momentum event, then a new scrolling
+-       * gesture has started. In case we are still in snapping back
+-       * state we can reset this (because the snapback has ended).
++      /* If a new gesture has started, reset snap back state.
++       * FIXME: check if overshoot has really ended.
+        */
+-      if (!is_overshot && priv->deceleration_id == 0 && !is_momentum_event)
++      if (event->phase == GDK_EVENT_SCROLL_PHASE_START)
+         priv->is_snapping_back = FALSE;
+
+       /* Scroll events are handled in two cases:
+@@ -2109,13 +2107,12 @@ gtk_scrolled_window_scroll_event (GtkWidget      *widget,
+         _gtk_scrolled_window_allocate_overshoot_window (scrolled_window);
+
+       /* In two cases we want to start snapping back:
+-       *  1) The view is overshot and the gesture has ended (signalled
+-       *  by an event with both deltas set to zero.
++       *  1) The view is overshot and the gesture has ended.
+        *  2) The view is overshot and we receive a momentum event, which
+        *  also signals that the user's gesture has ended.
+        */
+       if (is_overshot &&
+-          ((delta_x == 0.0 && delta_y == 0.0) || is_momentum_event))
++          (event->phase == GDK_EVENT_SCROLL_PHASE_END || is_momentum_event))
+         start_snap_back = TRUE;
+
+       /* If we should start a snap back and no current deceleration
+--
+1.7.10.2 (Apple Git-33)