File: src/lib/windowevents.js
/**
* The base module for the Core JS framework.
* It provides helper methods for implementing OOP methodologies and basic utilities such as browser detection.
*
* @module addons
*/
(function() {
core.registerModule({
inherits: "core.EventDispatcher",
classname: "core.WindowEvents",
singleton: true,
module: function() {
/**
* The main class that implements broadcaster pattern. Ideally subclassed by objects that will perform broadcasting functions.
*
* @class CoreWindow
* @extends core.Core
* @namespace core.addons
* @constructor
* @param {Object} opts An object containing configurations required by the Core derived class.
* @param {HTMLElement} opts.el The node element included in the class composition.
*
*/
this.dispatchScroll = function() {
var scrollLeft = this.scrollLeft = (window.pageXOffset !== undefined) ? window.pageXOffset : (document.documentElement || document.body.parentNode || document.body).scrollLeft;
var scrollTop = this.scrollTop = (window.pageYOffset !== undefined) ? window.pageYOffset : (document.documentElement || document.body.parentNode || document.body).scrollTop;
this.trigger("window.scroll", {
scrollTop: scrollTop,
scrollLeft: scrollLeft
});
this.tick = false;
};
this.dispatchResize = function() {
var w = window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth;
var h = window.innerHeight || document.documentElement.clientHeight || document.body.clientHeight;
var t = "mobile";
if (w >= 992 && w < 1200) {
t = "medium";
} else if (w < 992 && w >= 768) {
t = "small";
} else if (w >= 1200) {
t = "large";
}
this.trigger("window.resize", {
width: w,
height: h,
type: t
});
this.tickResize = false;
};
this.dispatchMotion = function() {
var evt = this.motionEvent;
var accelX = evt.accelerationIncludingGravity.x;
var accelY = evt.accelerationIncludingGravity.y;
var accelZ = evt.accelerationIncludingGravity.z;
var rotationAlpha = evt.rotationRate.alpha;
var rotationGamma = evt.rotationRate.gamma;
var rotationBeta = evt.rotationRate.beta;
this.trigger("window.device.motion", {
accelX: accelX,
accelY: accelY,
accelZ: accelZ,
rotationAlpha: rotationAlpha,
rotationBeta: rotationBeta,
rotationGamma: rotationGamma
});
this.tickMotion = false;
this.motionEvent = null;
};
this.onWindowScroll = function() {
if (!this.tick) {
this.tick = true;
requestAnimationFrame(this._("dispatchScroll"));
}
};
this.onWindowResize = function() {
if (!this.tickResize) {
this.tickResize = true;
requestAnimationFrame(this._("dispatchResize"));
}
};
this.onDeviceMotion = function(evt) {
this.motionEvent = evt;
if (!this.tickMotion) {
this.tickMotion = true;
requestAnimationFrame(this._("dispatchMotion"));
}
};
this.onAfterConstruct = function() {
this.scrollTop = 0;
this.scrollLeft = 0;
window.addEventListener("scroll", this._("onWindowScroll"));
window.addEventListener("resize", this._("onWindowResize"));
if (core.browser.touch) {
window.addEventListener("devicemotion", this._("onDeviceMotion"));
}
this.$super.onAfterConstruct.call(this);
};
}
});
})();