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move all tap hacks code into a separate handler, close #1781
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,108 @@ | ||
| /* | ||
| * L.Map.Tap is used to enable mobile hacks like quick taps and long hold. | ||
| */ | ||
|
|
||
| L.Map.mergeOptions({ | ||
| tap: true, | ||
| tapTolerance: 15 | ||
| }); | ||
|
|
||
| L.Map.Tap = L.Handler.extend({ | ||
| addHooks: function () { | ||
| if (!L.Browser.touch) { return; } | ||
| L.DomEvent.on(this._map._container, 'touchstart', this._onDown, this); | ||
| }, | ||
|
|
||
| removeHooks: function () { | ||
| if (!L.Browser.touch) { return; } | ||
| L.DomEvent.off(this._map._container, 'touchstart', this._onDown, this); | ||
| }, | ||
|
|
||
| _onDown: function (e) { | ||
| if (!e.touches) { return; } | ||
|
|
||
| L.DomEvent.preventDefault(e); | ||
|
|
||
| this._fireClick = true; | ||
|
|
||
| // don't simulate click or track longpress if more than 1 touch | ||
| if (e.touches.length > 1) { | ||
| this._fireClick = false; | ||
| clearTimeout(this._holdTimeout); | ||
| return; | ||
| } | ||
|
|
||
| var first = e.touches[0], | ||
| el = first.target; | ||
|
|
||
| this._startPos = this._newPos = new L.Point(first.clientX, first.clientY); | ||
|
|
||
| // if touching a link, highlight it | ||
| if (el.tagName.toLowerCase() === 'a') { | ||
| L.DomUtil.addClass(el, 'leaflet-active'); | ||
| } | ||
|
|
||
| // simulate long hold but setting a timeout | ||
| if (!L.Browser.msTouch) { | ||
| this._holdTimeout = setTimeout(L.bind(function () { | ||
| if (this._isTapValid()) { | ||
| this._fireClick = false; | ||
| this._onUp(); | ||
| this._simulateEvent('contextmenu', first); | ||
| } | ||
| }, this), 1000); | ||
| } | ||
|
|
||
| L.DomEvent | ||
| .on(document, 'touchmove', this._onMove, this) | ||
| .on(document, 'touchend', this._onUp, this); | ||
| }, | ||
|
|
||
| _onUp: function (e) { | ||
| clearTimeout(this._holdTimeout); | ||
|
|
||
| L.DomEvent | ||
| .off(document, 'touchmove', this._onMove, this) | ||
| .off(document, 'touchend', this._onUp, this); | ||
|
|
||
| if (this._fireClick && e && e.changedTouches) { | ||
|
|
||
| var first = e.changedTouches[0], | ||
| el = first.target; | ||
|
|
||
| if (el.tagName.toLowerCase() === 'a') { | ||
| L.DomUtil.removeClass(el, 'leaflet-active'); | ||
| } | ||
|
|
||
| // simulate click if the touch didn't move too much | ||
| if (this._isTapValid()) { | ||
| this._simulateEvent('click', first); | ||
| } | ||
| } | ||
| }, | ||
|
|
||
| _isTapValid: function () { | ||
| return this._newPos.distanceTo(this._startPos) <= this._map.options.tapTolerance; | ||
| }, | ||
|
|
||
| _onMove: function (e) { | ||
| var first = e.touches[0]; | ||
| this._newPos = new L.Point(first.clientX, first.clientY); | ||
| }, | ||
|
|
||
| _simulateEvent: function (type, e) { | ||
| var simulatedEvent = document.createEvent('MouseEvents'); | ||
|
|
||
| simulatedEvent._simulated = true; | ||
|
|
||
| simulatedEvent.initMouseEvent( | ||
| type, true, true, window, 1, | ||
| e.screenX, e.screenY, | ||
| e.clientX, e.clientY, | ||
| false, false, false, false, 0, null); | ||
|
|
||
| e.target.dispatchEvent(simulatedEvent); | ||
| } | ||
| }); | ||
|
|
||
| L.Map.addInitHook('addHandler', 'tap', L.Map.Tap); |