[polari] chatView: Listen to crossover events

[Kunal Jain <kunaljain src gnome org>]

commit 8b4f719ff4218f2fd77e210796cef66c50c1e5e8
Author: Kunaal Jain <kunaalus gmail com>
Date:   Wed Dec 23 01:13:19 2015 +0530

    chatView: Listen to crossover events
    
    We use motion notify event to listen to motion, and
    update button tags hover but it is not called when
    entering or leaving the chatview, so listen to
    crossover events which are called when we enter or
    leave chatView.

 src/chatView.js |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/src/chatView.js b/src/chatView.js
index 6dc54c1..77e3dcc 100644
--- a/src/chatView.js
+++ b/src/chatView.js
@@ -379,6 +379,9 @@ const ChatView = new Lang.Class({
                                     wrap_mode: Gtk.WrapMode.WORD_CHAR,
                                     right_margin: MARGIN });
 
+        this._view.add_events(Gdk.EventMask.LEAVE_NOTIFY_MASK);
+        this._view.add_events(Gdk.EventMask.ENTER_NOTIFY_MASK);
+
         this.widget.add(this._view);
         this.widget.show_all();
 
@@ -399,6 +402,10 @@ const ChatView = new Lang.Class({
         this._view.connect('key-press-event', Lang.bind(this, this._onKeyPress));
         this._view.connect('motion-notify-event',
                            Lang.bind(this, this._handleButtonTagsHover));
+        this._view.connect('enter-notify-event',
+                           Lang.bind(this, this._handleButtonTagsHover));
+        this._view.connect('leave-notify-event',
+                           Lang.bind(this, this._handleButtonTagsHover));
     },
 
     _onDestroy: function() {