vis.js is a dynamic, browser-based visualization library
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var Hammer = require('./module/hammer');
/**
* Register a touch event, taking place before a gesture
* @param {Hammer} hammer A hammer instance
* @param {function} callback Callback, called as callback(event)
*/
exports.onTouch = function (hammer, callback) {
callback.inputHandler = function (event) {
if (event.isFirst) {
callback(event);
}
};
hammer.on('hammer.input', callback.inputHandler);
};
/**
* Register a release event, taking place after a gesture
* @param {Hammer} hammer A hammer instance
* @param {function} callback Callback, called as callback(event)
*/
exports.onRelease = function (hammer, callback) {
callback.inputHandler = function (event) {
if (event.isFinal) {
callback(event);
}
};
return hammer.on('hammer.input', callback.inputHandler);
};
/**
* Unregister a touch event, taking place before a gesture
* @param {Hammer} hammer A hammer instance
* @param {function} callback Callback, called as callback(event)
*/
exports.offTouch = function (hammer, callback) {
hammer.off('hammer.input', callback.inputHandler);
};
/**
* Unregister a release event, taking place before a gesture
* @param {Hammer} hammer A hammer instance
* @param {function} callback Callback, called as callback(event)
*/
exports.offRelease = exports.offTouch;