mirror of
https://github.com/overleaf/overleaf.git
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283 lines
8 KiB
JavaScript
Executable file
283 lines
8 KiB
JavaScript
Executable file
/* ***** BEGIN LICENSE BLOCK *****
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* Distributed under the BSD license:
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*
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* Copyright (c) 2010, Ajax.org B.V.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of Ajax.org B.V. nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* ***** END LICENSE BLOCK ***** */
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define(function(require, exports, module) {
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"use strict";
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if (typeof document == "undefined")
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return;
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var XHTML_NS = "http://www.w3.org/1999/xhtml";
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exports.getDocumentHead = function(doc) {
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if (!doc)
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doc = document;
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return doc.head || doc.getElementsByTagName("head")[0] || doc.documentElement;
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}
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exports.createElement = function(tag, ns) {
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return document.createElementNS ?
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document.createElementNS(ns || XHTML_NS, tag) :
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document.createElement(tag);
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};
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exports.hasCssClass = function(el, name) {
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var classes = el.className.split(/\s+/g);
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return classes.indexOf(name) !== -1;
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};
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/*
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* Add a CSS class to the list of classes on the given node
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*/
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exports.addCssClass = function(el, name) {
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if (!exports.hasCssClass(el, name)) {
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el.className += " " + name;
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}
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};
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/*
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* Remove a CSS class from the list of classes on the given node
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*/
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exports.removeCssClass = function(el, name) {
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var classes = el.className.split(/\s+/g);
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while (true) {
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var index = classes.indexOf(name);
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if (index == -1) {
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break;
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}
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classes.splice(index, 1);
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}
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el.className = classes.join(" ");
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};
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exports.toggleCssClass = function(el, name) {
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var classes = el.className.split(/\s+/g), add = true;
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while (true) {
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var index = classes.indexOf(name);
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if (index == -1) {
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break;
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}
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add = false;
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classes.splice(index, 1);
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}
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if(add)
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classes.push(name);
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el.className = classes.join(" ");
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return add;
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};
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/*
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* Add or remove a CSS class from the list of classes on the given node
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* depending on the value of <tt>include</tt>
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*/
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exports.setCssClass = function(node, className, include) {
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if (include) {
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exports.addCssClass(node, className);
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} else {
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exports.removeCssClass(node, className);
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}
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};
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exports.hasCssString = function(id, doc) {
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var index = 0, sheets;
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doc = doc || document;
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if (doc.createStyleSheet && (sheets = doc.styleSheets)) {
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while (index < sheets.length)
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if (sheets[index++].owningElement.id === id) return true;
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} else if ((sheets = doc.getElementsByTagName("style"))) {
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while (index < sheets.length)
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if (sheets[index++].id === id) return true;
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}
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return false;
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};
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exports.importCssString = function importCssString(cssText, id, doc) {
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doc = doc || document;
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// If style is already imported return immediately.
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if (id && exports.hasCssString(id, doc))
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return null;
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var style;
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if (doc.createStyleSheet) {
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style = doc.createStyleSheet();
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style.cssText = cssText;
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if (id)
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style.owningElement.id = id;
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} else {
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style = doc.createElementNS
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? doc.createElementNS(XHTML_NS, "style")
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: doc.createElement("style");
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style.appendChild(doc.createTextNode(cssText));
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if (id)
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style.id = id;
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exports.getDocumentHead(doc).appendChild(style);
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}
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};
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exports.importCssStylsheet = function(uri, doc) {
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if (doc.createStyleSheet) {
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doc.createStyleSheet(uri);
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} else {
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var link = exports.createElement('link');
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link.rel = 'stylesheet';
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link.href = uri;
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exports.getDocumentHead(doc).appendChild(link);
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}
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};
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exports.getInnerWidth = function(element) {
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return (
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parseInt(exports.computedStyle(element, "paddingLeft"), 10) +
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parseInt(exports.computedStyle(element, "paddingRight"), 10) +
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element.clientWidth
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);
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};
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exports.getInnerHeight = function(element) {
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return (
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parseInt(exports.computedStyle(element, "paddingTop"), 10) +
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parseInt(exports.computedStyle(element, "paddingBottom"), 10) +
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element.clientHeight
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);
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};
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if (window.pageYOffset !== undefined) {
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exports.getPageScrollTop = function() {
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return window.pageYOffset;
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};
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exports.getPageScrollLeft = function() {
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return window.pageXOffset;
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};
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}
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else {
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exports.getPageScrollTop = function() {
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return document.body.scrollTop;
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};
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exports.getPageScrollLeft = function() {
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return document.body.scrollLeft;
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};
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}
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if (window.getComputedStyle)
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exports.computedStyle = function(element, style) {
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if (style)
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return (window.getComputedStyle(element, "") || {})[style] || "";
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return window.getComputedStyle(element, "") || {};
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};
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else
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exports.computedStyle = function(element, style) {
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if (style)
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return element.currentStyle[style];
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return element.currentStyle;
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};
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exports.scrollbarWidth = function(document) {
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var inner = exports.createElement("ace_inner");
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inner.style.width = "100%";
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inner.style.minWidth = "0px";
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inner.style.height = "200px";
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inner.style.display = "block";
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var outer = exports.createElement("ace_outer");
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var style = outer.style;
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style.position = "absolute";
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style.left = "-10000px";
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style.overflow = "hidden";
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style.width = "200px";
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style.minWidth = "0px";
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style.height = "150px";
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style.display = "block";
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outer.appendChild(inner);
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var body = document.documentElement;
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body.appendChild(outer);
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var noScrollbar = inner.offsetWidth;
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style.overflow = "scroll";
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var withScrollbar = inner.offsetWidth;
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if (noScrollbar == withScrollbar) {
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withScrollbar = outer.clientWidth;
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}
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body.removeChild(outer);
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return noScrollbar-withScrollbar;
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};
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/*
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* Optimized set innerHTML. This is faster than plain innerHTML if the element
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* already contains a lot of child elements.
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*
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* See http://blog.stevenlevithan.com/archives/faster-than-innerhtml for details
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*/
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exports.setInnerHtml = function(el, innerHtml) {
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var element = el.cloneNode(false);//document.createElement("div");
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element.innerHTML = innerHtml;
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el.parentNode.replaceChild(element, el);
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return element;
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};
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if ("textContent" in document.documentElement) {
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exports.setInnerText = function(el, innerText) {
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el.textContent = innerText;
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};
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exports.getInnerText = function(el) {
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return el.textContent;
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};
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}
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else {
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exports.setInnerText = function(el, innerText) {
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el.innerText = innerText;
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};
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exports.getInnerText = function(el) {
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return el.innerText;
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};
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}
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exports.getParentWindow = function(document) {
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return document.defaultView || document.parentWindow;
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};
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});
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