105 lines
3.2 KiB
JavaScript
105 lines
3.2 KiB
JavaScript
"use strict";
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global.W = {
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extend: function () {
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var lTarget = arguments[0] || {};
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var lIndex = 1;
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var lLength = arguments.length;
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var lDeep = false;
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var lOptions, lName, lSrc, lCopy, lCopyIsArray, lClone;
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// Handle a deep copy situation
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if (typeof lTarget === "boolean") {
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lDeep = lTarget;
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lTarget = arguments[1] || {};
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// skip the boolean and the target
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lIndex = 2;
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}
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// Handle case when target is a string or something (possible in deep
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// copy)
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if (typeof lTarget !== "object" && typeof lTarget != "function") {
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lTarget = {};
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}
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if (lLength === lIndex) {
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lTarget = this;
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--lIndex;
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}
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for (; lIndex < lLength; lIndex++) {
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// Only deal with non-null/undefined values
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if ((lOptions = arguments[lIndex]) != undefined) {
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// Extend the base object
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for (lName in lOptions) {
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lSrc = lTarget[lName];
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lCopy = lOptions[lName];
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// Prevent never-ending loop
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if (lTarget === lCopy) {
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continue;
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}
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// Recurse if we're merging plain objects or arrays
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if (lDeep && lCopy && (Object.isObject(lCopy) || (lCopyIsArray = Array.isArray(lCopy)))) {
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if (lCopyIsArray) {
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lCopyIsArray = false;
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lClone = lSrc && Array.isArray(lSrc) ? lSrc : [];
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} else {
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lClone = lSrc && Object.isObject(lSrc) ? lSrc : {};
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}
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// Never move original objects, clone them
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lTarget[lName] = Object.extend(lDeep, lClone, lCopy);
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// Don't bring in undefined values
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} else {
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if (lCopy !== undefined) {
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lTarget[lName] = lCopy;
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}
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}
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}
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}
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}
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// Return the modified object
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return lTarget;
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},
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touchToMouse: function (e) {
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e.preventDefault();
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if (e.touches.length > 1 || (e.type == "touchend" && e.touches.length > 0))
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return;
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var type = null;
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var touch = null;
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var src = e.currentTarget;
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switch (e.type) {
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case "touchstart":
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type = "mousedown";
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touch = e.changedTouches[0];
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break;
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case "touchmove":
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type = "mousemove";
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touch = e.changedTouches[0];
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src = window;
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break;
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case "touchend":
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type = "mouseup";
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touch = e.changedTouches[0];
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src = window;
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break;
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}
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var event = new MouseEvent(type, {
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button: 0,
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screenX: touch.screenX,
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screenY: touch.screenY,
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clientX: touch.clientX,
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clientY: touch.clientY
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});
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src.dispatchEvent(event);
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}
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};
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