mirror of
https://github.com/ionic-team/ionic-framework.git
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135 lines
3.7 KiB
JavaScript
135 lines
3.7 KiB
JavaScript
/**
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* framework-events.js
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*
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* Author: Max Lynch <max@drifty.com>
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*
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* Framework events handles various mobile browser events, and
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* detects special events like tap/swipe/etc. and emits them
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* as custom events that can be used in an app.
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*
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* Portions lovingly adapted from github.com/maker/ratchet and github.com/alexgibson/tap.js - thanks guys!
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*/
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(function(window, document, framework) {
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framework.EventController = {
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// A map of event types that we virtually detect and emit
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VIRTUAL_EVENT_TYPES: ['tap', 'swipeleft', 'swiperight'],
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/**
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* Trigger a new event.
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*/
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trigger: function(eventType, data) {
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// TODO: Do we need to use the old-school createEvent stuff?
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window.dispatchEvent(new CustomEvent(eventType, data));
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},
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/**
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* Shorthand for binding a new event listener to the given
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* event type.
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*/
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on: function(type, callback, element) {
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var i;
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var e = element || window;
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/*
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var virtualTypes = framework.EventController.VIRTUAL_EVENT_TYPES;
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for(i = 0; i < virtualTypes.length; i++) {
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if(type.toLowerCase() == virtualTypes[i]) {
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// TODO: listen for virtual event
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return;
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}
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}
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*/
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// Native listener
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e.addEventListener(type, callback);
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},
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/**
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* Process a touchstart event.
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*/
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handleTouchStart: function(e) {
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console.log("EVENT: touchstart", e);
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framework.GestureController.startGesture(e);
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},
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/**
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* Process a touchmove event.
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*/
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handleTouchMove: function(e) {
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console.log("EVENT: touchmove", e);
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framework.GestureController.detectGesture(e);
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},
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/**
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* Process a touchend event.
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*/
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handleTouchEnd: function(e) {
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console.log("EVENT: touchend", e);
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framework.GestureController.detectGesture(e);
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},
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/**
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* Process a touchcancel event.
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*/
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handleTouchCancel: function(e) {
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this._hasMoved = false;
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this._touchStartX = null;
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this._touchStartY = null;
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},
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// With a click event, we need to check the target
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// and if it's an internal target that doesn't want
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// a click, cancel it
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handleClick: function(e) {
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var target = e.target;
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if (
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! target
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|| e.which > 1
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|| e.metaKey
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|| e.ctrlKey
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//|| isScrolling
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|| location.protocol !== target.protocol
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|| location.host !== target.host
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// Not sure abotu this one
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//|| !target.hash && /#/.test(target.href)
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|| target.hash && target.href.replace(target.hash, '') === location.href.replace(location.hash, '')
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//|| target.getAttribute('data-ignore') == 'push'
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) {
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// Allow it
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console.log("EVENT: click", e);
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return;
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}
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// We need to cancel this one
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e.preventDefault();
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// TODO: should we do this?
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// e.stopPropagation();
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},
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handlePopState: function(event) {
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console.log("EVENT: popstate", event);
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},
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};
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// Map some convenient top-level functions for event handling
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framework.on = framework.EventController.on;
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framework.trigger = framework.EventController.trigger;
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// Set up various listeners
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window.addEventListener('touchstart', framework.EventController.handleTouchStart);
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window.addEventListener('touchmove', framework.EventController.handleTouchMove);
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window.addEventListener('touchcancel', framework.EventController.handleTouchCancel);
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window.addEventListener('touchend', framework.EventController.handleTouchEnd);
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window.addEventListener('click', framework.EventController.handleClick);
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window.addEventListener('popstate', framework.EventController.handlePopState);
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})(this, document, FM = this.FM || {});
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