[gtk+] broadway: Stop default mouse button handling

[Alexander Larsson <alexl src gnome org>]

commit aac4a027eb90be9662498171e7b5bae459e25cd6
Author: Alexander Larsson <alexl redhat com>
Date:   Thu Dec 27 20:13:41 2012 +0100

    broadway: Stop default mouse button handling
    
    This makes it not possible to select the canvas objects, etc.

 gdk/broadway/broadway.js |    9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)
---
diff --git a/gdk/broadway/broadway.js b/gdk/broadway/broadway.js
index 0a162ad..6ad454a 100644
--- a/gdk/broadway/broadway.js
+++ b/gdk/broadway/broadway.js
@@ -947,7 +947,7 @@ function onMouseDown (ev) {
 	localGrab.lastX = ev.pageX;
 	localGrab.lastY = ev.pageY;
 	moveToTop(localGrab.frame.frameFor);
-	return;
+	return false;
     }
 
     if (id == 0 && ev.target.closeFor) { /* mouse click on frame */
@@ -959,13 +959,14 @@ function onMouseDown (ev) {
 	localGrab.button = ev.target;
 	localGrab.lastX = ev.pageX;
 	localGrab.lastY = ev.pageY;
-	return;
+	return false;
     }
 
     var pos = getPositionsFromEvent(ev, id);
     if (grab.window == null)
 	doGrab (id, false, true);
     sendInput ("b", [realWindowWithMouse, id, pos.rootX, pos.rootY, pos.winX, pos.winY, lastState, button]);
+    return false;
 }
 
 function onMouseUp (ev) {
@@ -995,13 +996,15 @@ function onMouseUp (ev) {
 		sendInput ("W", [localGrab.surface.id]);
 	}
 	localGrab = null;
-	return;
+	return false;
     }
 
     sendInput ("B", [realWindowWithMouse, id, pos.rootX, pos.rootY, pos.winX, pos.winY, lastState, button]);
 
     if (grab.window != null && grab.implicit)
 	doUngrab();
+
+    return false;
 }
 
 /* Some of the keyboard handling code is from noVNC and