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layout: Trigger the tray if one event passes the threshold

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As a special-case to the "cap event" rules, this allows a heavy swipe
from top to bottom to allow triggering the tray without having to push
into it.

https://bugzilla.gnome.org/show_bug.cgi?id=694467
This commit is contained in:
Jasper St. Pierre 2013-02-21 17:21:25 -05:00
parent 01bd10f485
commit 41f14e0e89
1 changed files with 12 additions and 4 deletions
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16
js/ui/layout.js
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@ -1303,6 +1303,11 @@ const PressureBarrier = new Lang.Class({
this._reset();
},
_trigger: function() {
this.emit('trigger');
this._reset();
},
_onBarrierHit: function(barrier, event) {
// Throw out all events where the pointer was grabbed by another
// client, as the client that grabbed the pointer expects to have
@ -1320,6 +1325,11 @@ const PressureBarrier = new Lang.Class({
let slide = this._getDistanceAlongBarrier(event);
let distance = this._getDistanceAcrossBarrier(event);
if (distance >= this._threshold) {
this._trigger();
return;
}
// Throw out events where the cursor is move more
// along the axis of the barrier than moving with
// the barrier.
@ -1332,10 +1342,8 @@ const PressureBarrier = new Lang.Class({
this._barrierEvents.push(event);
this._currentPressure += Math.min(15, distance);
if (this._currentPressure >= this._threshold) {
this.emit('trigger');
this._reset();
}
if (this._currentPressure >= this._threshold)
this._trigger();
}
});
Signals.addSignalMethods(PressureBarrier.prototype);