[gtk+] gtkmain: Handle rewriting of event fields during grabs for touchpad events

[Carlos Garnacho <carlosg src gnome org>]

commit 6cd45af8b0afb3758df6bc7679b651033b39c9c4
Author: Carlos Garnacho <carlosg gnome org>
Date:   Thu Jul 9 18:47:02 2015 +0200

    gtkmain: Handle rewriting of event fields during grabs for touchpad events
    
    The window/coordinates will need translation in the case of touchpad gesture
    events, same than with other pointer events.

 gtk/gtkmain.c |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkmain.c b/gtk/gtkmain.c
index 25fef1c..dfb6d9b 100644
--- a/gtk/gtkmain.c
+++ b/gtk/gtkmain.c
@@ -1411,6 +1411,18 @@ rewrite_event_for_window (GdkEvent  *event,
                                 new_window,
                                 &event->touch.x, &event->touch.y);
       break;
+    case GDK_TOUCHPAD_SWIPE:
+      rewrite_events_translate (event->any.window,
+                                new_window,
+                                &event->touchpad_swipe.x,
+                                &event->touchpad_swipe.y);
+      break;
+    case GDK_TOUCHPAD_PINCH:
+      rewrite_events_translate (event->any.window,
+                                new_window,
+                                &event->touchpad_pinch.x,
+                                &event->touchpad_pinch.y);
+      break;
     case GDK_KEY_PRESS:
     case GDK_KEY_RELEASE:
     case GDK_PROXIMITY_IN:
@@ -1460,6 +1472,8 @@ rewrite_event_for_grabs (GdkEvent *event)
     case GDK_TOUCH_UPDATE:
     case GDK_TOUCH_END:
     case GDK_TOUCH_CANCEL:
+    case GDK_TOUCHPAD_SWIPE:
+    case GDK_TOUCHPAD_PINCH:
       display = gdk_window_get_display (event->any.window);
       device = gdk_event_get_device (event);
 
@@ -1819,6 +1833,8 @@ gtk_main_do_event (GdkEvent *event)
     case GDK_TOUCH_UPDATE:
     case GDK_TOUCH_END:
     case GDK_TOUCH_CANCEL:
+    case GDK_TOUCHPAD_SWIPE:
+    case GDK_TOUCHPAD_PINCH:
       if (!_gtk_propagate_captured_event (grab_widget, event, topmost_widget))
         gtk_propagate_event (grab_widget, event);
       break;