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65 lines
1.8 KiB
65 lines
1.8 KiB
var Hammer = require('./module/hammer');
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/**
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* Register a touch event, taking place before a gesture
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* @param {Hammer} hammer A hammer instance
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* @param {function} callback Callback, called as callback(event)
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*/
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exports.onTouch = function (hammer, callback) {
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callback.inputHandler = function (event) {
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if (event.isFirst) {
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callback(event);
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}
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};
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hammer.on('hammer.input', callback.inputHandler);
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};
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/**
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* Register a release event, taking place after a gesture
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* @param {Hammer} hammer A hammer instance
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* @param {function} callback Callback, called as callback(event)
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*/
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exports.onRelease = function (hammer, callback) {
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callback.inputHandler = function (event) {
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if (event.isFinal) {
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callback(event);
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}
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};
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return hammer.on('hammer.input', callback.inputHandler);
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};
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/**
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* Unregister a touch event, taking place before a gesture
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* @param {Hammer} hammer A hammer instance
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* @param {function} callback Callback, called as callback(event)
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*/
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exports.offTouch = function (hammer, callback) {
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hammer.off('hammer.input', callback.inputHandler);
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};
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/**
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* Unregister a release event, taking place before a gesture
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* @param {Hammer} hammer A hammer instance
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* @param {function} callback Callback, called as callback(event)
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*/
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exports.offRelease = exports.offTouch;
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/**
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* Hack the PinchRecognizer such that it doesn't prevent default behavior
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* for vertical panning.
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* @param {Hammer.Pinch} pinchRecognizer
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* @return {Hammer.Pinch} returns the pinchRecognizer
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*/
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exports.disablePreventDefaultVertically = function (pinchRecognizer) {
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var TOUCH_ACTION_PAN_Y = 'pan-y';
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pinchRecognizer.getTouchAction = function() {
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// default method returns [TOUCH_ACTION_NONE]
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return [TOUCH_ACTION_PAN_Y];
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};
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return pinchRecognizer;
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};
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