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@ -1,889 +0,0 @@ |
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// Vars
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var _wrs_currentPath = window.location.toString().substr(0, window.location.toString().lastIndexOf('/') + 1); |
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var _wrs_isNewElement = true; |
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var _wrs_temporalImage; |
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var _wrs_xmlCharacters = { |
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'tagOpener': '<', // \x3C
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'tagCloser': '>', // \x3E
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'doubleQuote': '"', // \x22
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'ampersand': '&', // \x26
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'quote': '\'' // \x27
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}; |
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var _wrs_safeXmlCharacters = { |
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'tagOpener': '«', // \xAB
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'tagCloser': '»', // \xBB
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'doubleQuote': '¨', // \xA8
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'ampersand': '§', // \xA7
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'quote': '`' // \xB4
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}; |
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var _wrs_safeXmlCharactersEntities = { |
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'tagOpener': '«', |
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'tagCloser': '»', |
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'doubleQuote': '¨' |
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} |
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/** |
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* Cross-browser addEventListener/attachEvent function. |
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* @param object element Element target |
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* @param event event Event |
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* @param function func Function to run |
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*/ |
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function wrs_addEvent(element, event, func) { |
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if (element.addEventListener) { |
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element.addEventListener(event, func, false); |
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} |
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else if (element.attachEvent) { |
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element.attachEvent('on' + event, func); |
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} |
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} |
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/** |
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* Adds iframe events. |
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* @param object iframe Target |
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* @param function doubleClickHandler Function to run when user double clicks the iframe |
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* @param function mousedownHandler Function to run when user mousedowns the iframe |
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* @param function mouseupHandler Function to run when user mouseups the iframe |
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*/ |
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function wrs_addIframeEvents(iframe, doubleClickHandler, mousedownHandler, mouseupHandler) { |
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if (doubleClickHandler) { |
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wrs_addEvent(iframe.contentWindow.document, 'dblclick', function (event) { |
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var realEvent = (event) ? event : window.event; |
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var element = realEvent.srcElement ? realEvent.srcElement : realEvent.target; |
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doubleClickHandler(iframe, element, realEvent); |
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}); |
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} |
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if (mousedownHandler) { |
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wrs_addEvent(iframe.contentWindow.document, 'mousedown', function (event) { |
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var realEvent = (event) ? event : window.event; |
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var element = realEvent.srcElement ? realEvent.srcElement : realEvent.target; |
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mousedownHandler(iframe, element, realEvent); |
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}); |
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} |
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if (mouseupHandler) { |
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wrs_addEvent(iframe.contentWindow.document, 'mouseup', function (event) { |
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var realEvent = (event) ? event : window.event; |
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var element = realEvent.srcElement ? realEvent.srcElement : realEvent.target; |
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mouseupHandler(iframe, element, realEvent); |
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}); |
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} |
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} |
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/** |
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* Adds textarea events. |
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* @param object textarea Target |
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* @param function clickHandler Function to run when user clicks the textarea. |
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*/ |
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function wrs_addTextareaEvents(textarea, clickHandler) { |
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if (clickHandler) { |
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wrs_addEvent(textarea, 'click', function (event) { |
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var realEvent = (event) ? event : window.event; |
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clickHandler(textarea, realEvent); |
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}); |
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} |
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} |
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/** |
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* Converts applet code to img object. |
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* @param object creator Object with "createElement" method |
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* @param string appletCode Applet code |
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* @param string image Base 64 image stream |
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* @param int imageWidth Image width |
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* @param int imageHeight Image height |
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* @return object |
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*/ |
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function wrs_appletCodeToImgObject(creator, appletCode, image, imageWidth, imageHeight) { |
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var imageSrc = wrs_createImageCASSrc(image); |
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var imgObject = creator.createElement('img'); |
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imgObject.title = 'Double click to edit'; |
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imgObject.src = imageSrc; |
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imgObject.align = 'middle'; |
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imgObject.width = imageWidth; |
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imgObject.height = imageHeight; |
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imgObject.setAttribute(_wrs_conf_CASMathmlAttribute, wrs_mathmlEncode(appletCode)); |
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imgObject.className = 'Wiriscas'; |
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return imgObject; |
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} |
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/** |
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* Checks if an element contains a class. |
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* @param object element |
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* @param string className |
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* @return bool |
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*/ |
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function wrs_containsClass(element, className) { |
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var currentClasses = element.className.split(' '); |
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for (var i = currentClasses.length - 1; i >= 0; --i) { |
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if (currentClasses[i] == className) { |
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return true; |
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} |
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} |
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return false; |
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} |
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/** |
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* Cross-browser solution for creating new elements. |
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*
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* It fixes some browser bugs. |
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* |
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* @param string elementName The tag name of the wished element. |
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* @param object attributes An object where each key is a wished attribute name and each value is its value. |
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* @param object creator Optional param. If supplied, this function will use the "createElement" method from this param. Else, "document" will be used. |
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* @return object The DOM element with the specified attributes assignated. |
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*/ |
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function wrs_createElement(elementName, attributes, creator) { |
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if (attributes === undefined) { |
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attributes = {}; |
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} |
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if (creator === undefined) { |
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creator = document; |
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} |
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var element; |
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/* |
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* Internet Explorer fix: |
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* If you create a new object dynamically, you can't set a non-standard attribute. |
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* For example, you can't set the "src" attribute on an "applet" object. |
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* Other browsers will throw an exception and will run the standard code. |
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*/ |
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try { |
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var html = '<' + elementName + ' '; |
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for (var attributeName in attributes) { |
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html += attributeName + '="' + wrs_htmlentities(attributes[attributeName]) + '" '; |
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} |
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html += '>'; |
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element = creator.createElement(html); |
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} |
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catch (e) { |
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element = creator.createElement(elementName); |
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for (var attributeName in attributes) { |
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element.setAttribute(attributeName, attributes[attributeName]); |
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} |
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} |
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return element; |
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} |
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/** |
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* Cross-browser httpRequest creation. |
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* @return object |
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*/ |
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function wrs_createHttpRequest() { |
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if (typeof XMLHttpRequest != 'undefined') { |
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return new XMLHttpRequest(); |
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} |
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try { |
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return new ActiveXObject('Msxml2.XMLHTTP'); |
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} |
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catch (e) { |
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try { |
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return new ActiveXObject('Microsoft.XMLHTTP'); |
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} |
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catch (oc) { |
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} |
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} |
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return false; |
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} |
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/** |
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* Gets CAS image src with AJAX. |
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* @param string image Base 64 image stream |
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* @return string |
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*/ |
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function wrs_createImageCASSrc(image, appletCode) { |
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var httpRequest = wrs_createHttpRequest(); |
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if (httpRequest) { |
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var data = 'image=' + wrs_urlencode(image); |
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if (appletCode) { |
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data += '&mml=' + wrs_urlencode(appletCode); |
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} |
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if (_wrs_conf_createcasimagePath.substr(0, 1) == '/' || _wrs_conf_createcasimagePath.substr(0, 7) == 'http://' || _wrs_conf_createimagePath.substr(0, 8) == 'https://') { |
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httpRequest.open('POST', _wrs_conf_createcasimagePath, false); |
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} |
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else { |
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httpRequest.open('POST', _wrs_currentPath + _wrs_conf_createcasimagePath, false); |
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} |
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httpRequest.setRequestHeader('Content-type', 'application/x-www-form-urlencoded; charset=UTF-8'); |
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httpRequest.send(data); |
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return httpRequest.responseText; |
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} |
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alert('Your browser is not compatible with AJAX technology. Please, use the latest version of Mozilla Firefox.'); |
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return ''; |
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} |
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/** |
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* Gets formula image src with AJAX. |
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* @param mathml Mathml code |
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* @param wirisProperties |
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* @return string Image src |
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*/ |
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function wrs_createImageSrc(mathml, wirisProperties) { |
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var httpRequest = wrs_createHttpRequest(); |
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if (httpRequest) { |
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var data = (wirisProperties) ? wirisProperties : {}; |
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data['mml'] = mathml; |
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if (window._wrs_conf_useDigestInsteadOfMathml && _wrs_conf_useDigestInsteadOfMathml) { |
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data['returnDigest'] = 'true'; |
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} |
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if (_wrs_conf_createimagePath.substr(0, 1) == '/' || _wrs_conf_createimagePath.substr(0, 7) == 'http://' || _wrs_conf_createimagePath.substr(0, 8) == 'https://') { |
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httpRequest.open('POST', _wrs_conf_createimagePath, false); |
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} |
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else { |
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httpRequest.open('POST', _wrs_currentPath + _wrs_conf_createimagePath, false); |
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} |
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httpRequest.setRequestHeader('Content-type', 'application/x-www-form-urlencoded; charset=UTF-8'); |
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httpRequest.send(wrs_httpBuildQuery(data)); |
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return httpRequest.responseText; |
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} |
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alert('Your browser is not compatible with AJAX technology. Please, use the latest version of Mozilla Firefox.'); |
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return ''; |
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} |
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/** |
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* Creates new object using its html code. |
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* @param string objectCode |
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* @return object |
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*/ |
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function wrs_createObject(objectCode, creator) { |
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if (creator === undefined) { |
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creator = document; |
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} |
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// Internet Explorer can't include "param" tag when is setting an innerHTML property.
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objectCode = objectCode.split('<applet ').join('<span wirisObject="WirisApplet" ').split('<APPLET ').join('<span wirisObject="WirisApplet" '); // It is a 'span' because 'span' objects can contain 'br' nodes.
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objectCode = objectCode.split('</applet>').join('</span>').split('</APPLET>').join('</span>'); |
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objectCode = objectCode.split('<param ').join('<br wirisObject="WirisParam" ').split('<PARAM ').join('<br wirisObject="WirisParam" '); // It is a 'br' because 'br' can't contain nodes.
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objectCode = objectCode.split('</param>').join('</br>').split('</PARAM>').join('</br>'); |
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var container = wrs_createElement('div', {}, creator); |
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container.innerHTML = objectCode; |
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function recursiveParamsFix(object) { |
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if (object.getAttribute && object.getAttribute('wirisObject') == 'WirisParam') { |
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var attributesParsed = {}; |
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for (var i = 0; i < object.attributes.length; ++i) { |
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if (object.attributes[i].nodeValue !== null) { |
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attributesParsed[object.attributes[i].nodeName] = object.attributes[i].nodeValue; |
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} |
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} |
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var param = wrs_createElement('param', attributesParsed, creator); |
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// IE fix
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if (param.NAME) { |
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param.name = param.NAME; |
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param.value = param.VALUE; |
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} |
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param.removeAttribute('wirisObject'); |
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object.parentNode.replaceChild(param, object); |
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} |
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else if (object.getAttribute && object.getAttribute('wirisObject') == 'WirisApplet') { |
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var attributesParsed = {}; |
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for (var i = 0; i < object.attributes.length; ++i) { |
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if (object.attributes[i].nodeValue !== null) { |
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attributesParsed[object.attributes[i].nodeName] = object.attributes[i].nodeValue; |
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} |
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} |
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var applet = wrs_createElement('applet', attributesParsed, creator); |
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applet.removeAttribute('wirisObject'); |
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for (var i = 0; i < object.childNodes.length; ++i) { |
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recursiveParamsFix(object.childNodes[i]); |
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if (object.childNodes[i].nodeName.toLowerCase() == 'param') { |
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applet.appendChild(object.childNodes[i]); |
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--i; // When we insert the object child into the applet, object loses one child.
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} |
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} |
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object.parentNode.replaceChild(applet, object); |
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} |
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else { |
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for (var i = 0; i < object.childNodes.length; ++i) { |
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recursiveParamsFix(object.childNodes[i]); |
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} |
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} |
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} |
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recursiveParamsFix(container); |
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return container.firstChild; |
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} |
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/** |
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* Converts an object to its HTML code. |
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* @param object object |
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* @return string |
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*/ |
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function wrs_createObjectCode(object, creator) { |
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if (creator === undefined) { |
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creator = document; |
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} |
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var parent = object.parentNode; |
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var toReturn; |
|
|
|
|
|
|
|
|
|
if (parent != null) { |
|
|
|
|
var newParent = wrs_createElement(parent.tagName, {}, creator); |
|
|
|
|
parent.replaceChild(newParent, object); |
|
|
|
|
newParent.appendChild(object); |
|
|
|
|
toReturn = newParent.innerHTML; |
|
|
|
|
parent.replaceChild(object, newParent); |
|
|
|
|
} |
|
|
|
|
else { |
|
|
|
|
var newParent = wrs_createElement('div', {}, creator); |
|
|
|
|
newParent.appendChild(object); |
|
|
|
|
toReturn = newParent.innerHTML; |
|
|
|
|
newParent.removeChild(object); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
return toReturn; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Parses end HTML code, converts CAS images to CAS applets. |
|
|
|
|
* @param string code |
|
|
|
|
* @return string |
|
|
|
|
*/ |
|
|
|
|
function wrs_endParse(code) { |
|
|
|
|
var containerCode = '<div>' + code + '</div>'; |
|
|
|
|
var container = wrs_createObject(containerCode); |
|
|
|
|
var imgList = container.getElementsByTagName('img'); |
|
|
|
|
var convertToXml = false; |
|
|
|
|
var convertToSafeXml = false; |
|
|
|
|
|
|
|
|
|
if (window._wrs_conf_saveMode) { |
|
|
|
|
if (_wrs_conf_saveMode == 'safeXml') { |
|
|
|
|
convertToXml = true; |
|
|
|
|
convertToSafeXml = true; |
|
|
|
|
} |
|
|
|
|
else if (_wrs_conf_saveMode == 'xml') { |
|
|
|
|
convertToXml = true; |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
for (var i = 0; i < imgList.length; ++i) { |
|
|
|
|
if (imgList[i].className == 'Wirisformula') { |
|
|
|
|
if (convertToXml) { |
|
|
|
|
var xmlCode = imgList[i].getAttribute(_wrs_conf_imageMathmlAttribute); |
|
|
|
|
var replacementObject; |
|
|
|
|
|
|
|
|
|
if (!convertToSafeXml) { |
|
|
|
|
xmlCode = wrs_mathmlDecode(xmlCode); |
|
|
|
|
var span = document.createElement('span'); |
|
|
|
|
span.innerHTML = xmlCode; |
|
|
|
|
replacementObject = span.firstChild; |
|
|
|
|
} |
|
|
|
|
else { |
|
|
|
|
replacementObject = document.createTextNode(xmlCode); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
imgList[i].parentNode.replaceChild(replacementObject, imgList[i]); |
|
|
|
|
--i; // One image has been deleted.
|
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
else if (imgList[i].className == 'Wiriscas') { |
|
|
|
|
var appletCode = imgList[i].getAttribute(_wrs_conf_CASMathmlAttribute); |
|
|
|
|
appletCode = wrs_mathmlDecode(appletCode); |
|
|
|
|
var appletObject = wrs_createObject(appletCode); |
|
|
|
|
appletObject.setAttribute('src', imgList[i].src); |
|
|
|
|
var object = appletObject; |
|
|
|
|
|
|
|
|
|
if (convertToSafeXml) { |
|
|
|
|
object = document.createTextNode(wrs_mathmlEncode(wrs_createObjectCode(appletObject))); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
imgList[i].parentNode.replaceChild(object, imgList[i]); |
|
|
|
|
--i; // One image has been deleted.
|
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
return container.innerHTML; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Gets the formula mathml or CAS appletCode using its image hash code. |
|
|
|
|
* @param string variableName Variable to send on POST query to the server. |
|
|
|
|
* @param string imageHashCode |
|
|
|
|
* @return string |
|
|
|
|
*/ |
|
|
|
|
function wrs_getCode(variableName, imageHashCode) { |
|
|
|
|
var data = wrs_urlencode(variableName) + '=' + imageHashCode; |
|
|
|
|
var httpRequest = wrs_createHttpRequest(); |
|
|
|
|
|
|
|
|
|
if (httpRequest) { |
|
|
|
|
if (_wrs_conf_getmathmlPath.substr(0, 1) == '/' || _wrs_conf_getmathmlPath.substr(0, 7) == 'http://' || _wrs_conf_getmathmlPath.substr(0, 8) == 'https://') { |
|
|
|
|
httpRequest.open('POST', _wrs_conf_getmathmlPath, false); |
|
|
|
|
} |
|
|
|
|
else { |
|
|
|
|
httpRequest.open('POST', _wrs_currentPath + _wrs_conf_getmathmlPath, false); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
httpRequest.setRequestHeader('Content-type', 'application/x-www-form-urlencoded; charset=UTF-8'); |
|
|
|
|
httpRequest.send(data); |
|
|
|
|
return httpRequest.responseText; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
alert('Your browser is not compatible with AJAX technology. Please, use the latest version of Mozilla Firefox.'); |
|
|
|
|
return ''; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Parses a text and replaces all HTML special characters by their entities. |
|
|
|
|
* @param string input |
|
|
|
|
* @return string |
|
|
|
|
*/ |
|
|
|
|
function wrs_htmlentities(input) { |
|
|
|
|
var container = document.createElement('span'); |
|
|
|
|
var text = document.createTextNode(input); |
|
|
|
|
container.appendChild(text); |
|
|
|
|
return container.innerHTML.split('"').join('"'); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Converts a hash to a HTTP query. |
|
|
|
|
* @param hash properties |
|
|
|
|
* @return string |
|
|
|
|
*/ |
|
|
|
|
function wrs_httpBuildQuery(properties) { |
|
|
|
|
var result = ''; |
|
|
|
|
|
|
|
|
|
for (i in properties) { |
|
|
|
|
if (properties[i] != null) { |
|
|
|
|
result += wrs_urlencode(i) + '=' + wrs_urlencode(properties[i]) + '&'; |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
return result; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Parses initial HTML code, converts CAS applets to CAS images. |
|
|
|
|
* @param string code |
|
|
|
|
* @return string |
|
|
|
|
*/ |
|
|
|
|
function wrs_initParse(code) { |
|
|
|
|
if (window._wrs_conf_saveMode) { |
|
|
|
|
var safeXml = (_wrs_conf_saveMode == 'safeXml'); |
|
|
|
|
var characters = _wrs_xmlCharacters; |
|
|
|
|
|
|
|
|
|
if (safeXml) { |
|
|
|
|
characters = _wrs_safeXmlCharacters; |
|
|
|
|
code = wrs_parseSafeAppletsToObjects(code); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
if (safeXml || _wrs_conf_saveMode == 'xml') { |
|
|
|
|
// Converting XML to tags.
|
|
|
|
|
code = wrs_parseMathmlToImg(code, characters); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
var container = wrs_createObject('<div>' + code + '</div>'); |
|
|
|
|
var appletList = container.getElementsByTagName('applet'); |
|
|
|
|
|
|
|
|
|
for (var i = 0; i < appletList.length; ++i) { |
|
|
|
|
if (appletList[i].className == 'Wiriscas' || appletList[i].getAttribute('class') == 'Wiriscas') { // Internet Explorer can't read className correctly
|
|
|
|
|
var imgObject = wrs_createElement('img'); |
|
|
|
|
imgObject.title = 'Double click to edit'; |
|
|
|
|
imgObject.src = appletList[i].getAttribute('src'); |
|
|
|
|
imgObject.align = 'middle'; |
|
|
|
|
|
|
|
|
|
var appletCode = wrs_createObjectCode(appletList[i]); |
|
|
|
|
imgObject.setAttribute(_wrs_conf_CASMathmlAttribute, wrs_mathmlEncode(appletCode)); |
|
|
|
|
imgObject.className = 'Wiriscas'; |
|
|
|
|
|
|
|
|
|
appletList[i].parentNode.replaceChild(imgObject, appletList[i]); |
|
|
|
|
--i; // we have deleted one sleeped applet
|
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
return container.innerHTML; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* WIRIS special encoding. |
|
|
|
|
* We use these entities because IE doesn't support html entities on its attributes sometimes. Yes, sometimes. |
|
|
|
|
* @param string input |
|
|
|
|
* @return string |
|
|
|
|
*/ |
|
|
|
|
function wrs_mathmlDecode(input) { |
|
|
|
|
// Decoding entities.
|
|
|
|
|
input = input.split(_wrs_safeXmlCharactersEntities.tagOpener).join(_wrs_safeXmlCharacters.tagOpener); |
|
|
|
|
input = input.split(_wrs_safeXmlCharactersEntities.tagCloser).join(_wrs_safeXmlCharacters.tagCloser); |
|
|
|
|
input = input.split(_wrs_safeXmlCharactersEntities.doubleQuote).join(_wrs_safeXmlCharacters.doubleQuote); |
|
|
|
|
|
|
|
|
|
// Decoding characters.
|
|
|
|
|
input = input.split(_wrs_safeXmlCharacters.tagOpener).join(_wrs_xmlCharacters.tagOpener); |
|
|
|
|
input = input.split(_wrs_safeXmlCharacters.tagCloser).join(_wrs_xmlCharacters.tagCloser); |
|
|
|
|
input = input.split(_wrs_safeXmlCharacters.doubleQuote).join(_wrs_xmlCharacters.doubleQuote); |
|
|
|
|
input = input.split(_wrs_safeXmlCharacters.ampersand).join(_wrs_xmlCharacters.ampersand); |
|
|
|
|
input = input.split(_wrs_safeXmlCharacters.quote).join(_wrs_xmlCharacters.quote); |
|
|
|
|
|
|
|
|
|
// We are replacing $ by & for retrocompatibility. Now, the standard is replace § by &
|
|
|
|
|
input = input.split('$').join('&'); |
|
|
|
|
|
|
|
|
|
return input; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* WIRIS special encoding. |
|
|
|
|
* We use these entities because IE doesn't support html entities on its attributes sometimes. Yes, sometimes. |
|
|
|
|
* @param string input |
|
|
|
|
* @return string |
|
|
|
|
*/ |
|
|
|
|
function wrs_mathmlEncode(input) { |
|
|
|
|
input = input.split(_wrs_xmlCharacters.tagOpener).join(_wrs_safeXmlCharacters.tagOpener); |
|
|
|
|
input = input.split(_wrs_xmlCharacters.tagCloser).join(_wrs_safeXmlCharacters.tagCloser); |
|
|
|
|
input = input.split(_wrs_xmlCharacters.doubleQuote).join(_wrs_safeXmlCharacters.doubleQuote); |
|
|
|
|
input = input.split(_wrs_xmlCharacters.ampersand).join(_wrs_safeXmlCharacters.ampersand); |
|
|
|
|
input = input.split(_wrs_xmlCharacters.quote).join(_wrs_safeXmlCharacters.quote); |
|
|
|
|
|
|
|
|
|
return input; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Converts special symbols (> 128) to entities. |
|
|
|
|
* @param string mathml |
|
|
|
|
* @return string |
|
|
|
|
*/ |
|
|
|
|
function wrs_mathmlEntities(mathml) { |
|
|
|
|
var toReturn = ''; |
|
|
|
|
|
|
|
|
|
for (var i = 0; i < mathml.length; ++i) { |
|
|
|
|
//parsing > 128 characters
|
|
|
|
|
if (mathml.charCodeAt(i) > 128) { |
|
|
|
|
toReturn += '&#' + mathml.charCodeAt(i) + ';'; |
|
|
|
|
} |
|
|
|
|
else { |
|
|
|
|
toReturn += mathml.charAt(i); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
return toReturn; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Converts mathml to img object. |
|
|
|
|
* @param object creator Object with "createElement" method |
|
|
|
|
* @param string mathml Mathml code |
|
|
|
|
* @return object |
|
|
|
|
*/ |
|
|
|
|
function wrs_mathmlToImgObject(creator, mathml, wirisProperties) { |
|
|
|
|
var imgObject = creator.createElement('img'); |
|
|
|
|
imgObject.title = 'Double click to edit'; |
|
|
|
|
imgObject.align = 'middle'; |
|
|
|
|
imgObject.className = 'Wirisformula'; |
|
|
|
|
|
|
|
|
|
var result = wrs_createImageSrc(mathml, wirisProperties); |
|
|
|
|
|
|
|
|
|
if (window._wrs_conf_useDigestInsteadOfMathml && _wrs_conf_useDigestInsteadOfMathml) { |
|
|
|
|
var parts = result.split(':', 2); |
|
|
|
|
imgObject.setAttribute(_wrs_conf_imageMathmlAttribute, parts[0]); |
|
|
|
|
imgObject.src = parts[1]; |
|
|
|
|
} |
|
|
|
|
else { |
|
|
|
|
imgObject.setAttribute(_wrs_conf_imageMathmlAttribute, wrs_mathmlEncode(mathml)); |
|
|
|
|
imgObject.src = result; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
return imgObject; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Opens a new CAS window. |
|
|
|
|
* @return object The opened window |
|
|
|
|
*/ |
|
|
|
|
function wrs_openCASWindow() { |
|
|
|
|
return window.open(_wrs_conf_CASPath, 'WIRISCAS', _wrs_conf_CASAttributes); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Opens a new editor window. |
|
|
|
|
* @param string language Language code for the editor |
|
|
|
|
* @return object The opened window |
|
|
|
|
*/ |
|
|
|
|
function wrs_openEditorWindow(language) { |
|
|
|
|
var path = _wrs_conf_editorPath; |
|
|
|
|
|
|
|
|
|
if (language) { |
|
|
|
|
path += '?lang=' + language; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
return window.open(path, 'WIRISeditor', _wrs_conf_editorAttributes); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Converts all occurrences of mathml code to the corresponding image. |
|
|
|
|
* @param string content |
|
|
|
|
* @return string |
|
|
|
|
*/ |
|
|
|
|
function wrs_parseMathmlToImg(content, characters) { |
|
|
|
|
var output = ''; |
|
|
|
|
var mathTagBegin = characters.tagOpener + 'math'; |
|
|
|
|
var mathTagEnd = characters.tagOpener + '/math' + characters.tagCloser; |
|
|
|
|
var start = content.indexOf(mathTagBegin); |
|
|
|
|
var end = 0; |
|
|
|
|
|
|
|
|
|
while (start != -1) { |
|
|
|
|
output += content.substring(end, start); |
|
|
|
|
end = content.indexOf(mathTagEnd, start); |
|
|
|
|
|
|
|
|
|
if (end == -1) { |
|
|
|
|
end = content.length - 1; |
|
|
|
|
} |
|
|
|
|
else { |
|
|
|
|
end += mathTagEnd.length; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
var mathml = content.substring(start, end); |
|
|
|
|
mathml = (characters == _wrs_safeXmlCharacters) ? wrs_mathmlDecode(mathml) : wrs_mathmlEntities(mathml); |
|
|
|
|
output += wrs_createObjectCode(wrs_mathmlToImgObject(document, mathml)); |
|
|
|
|
start = content.indexOf(mathTagBegin, end); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
output += content.substring(end, content.length - 1); |
|
|
|
|
return output; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Converts all occurrences of safe applet code to the corresponding code. |
|
|
|
|
* @param string content |
|
|
|
|
* @return string |
|
|
|
|
*/ |
|
|
|
|
function wrs_parseSafeAppletsToObjects(content) { |
|
|
|
|
var output = ''; |
|
|
|
|
var appletTagBegin = _wrs_safeXmlCharacters.tagOpener + 'applet'; |
|
|
|
|
var appletTagEnd = _wrs_safeXmlCharacters.tagOpener + '/applet' + _wrs_safeXmlCharacters.tagCloser; |
|
|
|
|
var start = content.indexOf(appletTagBegin); |
|
|
|
|
var end = 0; |
|
|
|
|
|
|
|
|
|
while (start != -1) { |
|
|
|
|
output += content.substring(end, start); |
|
|
|
|
end = content.indexOf(appletTagEnd, start); |
|
|
|
|
|
|
|
|
|
if (end == -1) { |
|
|
|
|
end = content.length - 1; |
|
|
|
|
} |
|
|
|
|
else { |
|
|
|
|
end += appletTagEnd.length; |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
output += wrs_mathmlDecode(content.substring(start, end)); |
|
|
|
|
start = content.indexOf(appletTagBegin, end); |
|
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} |
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output += content.substring(end, content.length - 1); |
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return output; |
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} |
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|
|
/** |
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|
* Cross-browser removeEventListener/detachEvent function. |
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* @param object element Element target |
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|
* @param event event Event |
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* @param function func Function to run |
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*/ |
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function wrs_removeEvent(element, event, func) { |
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if (element.removeEventListener) { |
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element.removeEventListener(event, func, false); |
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} |
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else if (element.detachEvent) { |
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|
element.detachEvent('on' + event, func); |
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} |
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} |
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|
/** |
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|
* Inserts or modifies CAS on an iframe. |
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|
* @param object iframe Target |
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|
* @param string appletCode Applet code |
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|
* @param string image Base 64 image stream |
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|
* @param int imageWidth Image width |
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|
* @param int imageHeight Image height |
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*/ |
|
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|
|
function wrs_updateCAS(iframe, appletCode, image, imageWidth, imageHeight) { |
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|
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try { |
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|
|
|
if (iframe && appletCode) { |
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|
|
iframe.contentWindow.focus(); |
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|
|
var imgObject = wrs_appletCodeToImgObject(iframe.contentWindow.document, appletCode, image, imageWidth, imageHeight); |
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|
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|
|
if (_wrs_isNewElement) { |
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|
|
if (document.selection) { |
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|
|
var range = iframe.contentWindow.document.selection.createRange(); |
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|
|
iframe.contentWindow.document.execCommand('insertimage', false, imgObject.src); |
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|
|
|
if (range.parentElement) { |
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|
|
var temporalImg = range.parentElement(); |
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|
|
temporalImg.parentNode.insertBefore(imgObject, temporalImg); |
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|
temporalImg.parentNode.removeChild(temporalImg); |
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} |
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|
} |
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|
else { |
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|
|
var sel = iframe.contentWindow.getSelection(); |
|
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|
|
try { |
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|
|
var range = sel.getRangeAt(0); |
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|
|
} |
|
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|
|
catch (e) { |
|
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|
|
var range = iframe.contentWindow.document.createRange(); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
sel.removeAllRanges(); |
|
|
|
|
range.deleteContents(); |
|
|
|
|
|
|
|
|
|
var node = range.startContainer; |
|
|
|
|
var pos = range.startOffset; |
|
|
|
|
|
|
|
|
|
if (node.nodeType == 3) { |
|
|
|
|
node = node.splitText(pos); |
|
|
|
|
node.parentNode.insertBefore(imgObject, node); |
|
|
|
|
} |
|
|
|
|
else if (node.nodeType == 1) { |
|
|
|
|
node.insertBefore(imgObject, node.childNodes[pos]); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
else { |
|
|
|
|
_wrs_temporalImage.parentNode.insertBefore(imgObject, _wrs_temporalImage); |
|
|
|
|
_wrs_temporalImage.parentNode.removeChild(_wrs_temporalImage); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
catch (e) { |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Inserts or modifies formulas on an iframe. |
|
|
|
|
* @param object iframe Target |
|
|
|
|
* @param string mathml Mathml code |
|
|
|
|
*/ |
|
|
|
|
function wrs_updateFormula(iframe, mathml, wirisProperties) { |
|
|
|
|
try { |
|
|
|
|
if (iframe && mathml) { |
|
|
|
|
iframe.contentWindow.focus(); |
|
|
|
|
var imgObject = wrs_mathmlToImgObject(iframe.contentWindow.document, mathml, wirisProperties); |
|
|
|
|
|
|
|
|
|
if (_wrs_isNewElement) { |
|
|
|
|
if (document.selection) { |
|
|
|
|
var range = iframe.contentWindow.document.selection.createRange(); |
|
|
|
|
iframe.contentWindow.document.execCommand('insertimage', false, imgObject.src); |
|
|
|
|
|
|
|
|
|
if (range.parentElement) { |
|
|
|
|
var temporalImg = range.parentElement(); |
|
|
|
|
temporalImg.parentNode.insertBefore(imgObject, temporalImg); |
|
|
|
|
temporalImg.parentNode.removeChild(temporalImg); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
else { |
|
|
|
|
var selection = iframe.contentWindow.getSelection(); |
|
|
|
|
|
|
|
|
|
try { |
|
|
|
|
var range = selection.getRangeAt(0);
|
|
|
|
|
} |
|
|
|
|
catch (e) { |
|
|
|
|
var range = iframe.contentWindow.document.createRange(); |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
selection.removeAllRanges(); |
|
|
|
|
range.deleteContents(); |
|
|
|
|
|
|
|
|
|
var node = range.startContainer; |
|
|
|
|
var pos = range.startOffset; |
|
|
|
|
|
|
|
|
|
if (node.nodeType == 3) { |
|
|
|
|
node = node.splitText(pos); |
|
|
|
|
node.parentNode.insertBefore(imgObject, node); |
|
|
|
|
} |
|
|
|
|
else if (node.nodeType == 1) { |
|
|
|
|
node.insertBefore(imgObject, node.childNodes[pos]); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
else { |
|
|
|
|
_wrs_temporalImage.parentNode.insertBefore(imgObject, _wrs_temporalImage); |
|
|
|
|
_wrs_temporalImage.parentNode.removeChild(_wrs_temporalImage); |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
catch (e) { |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* Inserts or modifies formulas or CAS on a textarea. |
|
|
|
|
* @param object textarea Target |
|
|
|
|
* @param string text Text to add in the textarea. For example, if you want to add the link to the image, you can call this function as wrs_updateTextarea(textarea, wrs_createImageSrc(mathml)); |
|
|
|
|
*/ |
|
|
|
|
function wrs_updateTextarea(textarea, text) { |
|
|
|
|
if (textarea && text) { |
|
|
|
|
textarea.focus(); |
|
|
|
|
|
|
|
|
|
if (textarea.selectionStart != null) { |
|
|
|
|
textarea.value = textarea.value.substring(0, textarea.selectionStart) + text + textarea.value.substring(textarea.selectionEnd, textarea.value.length); |
|
|
|
|
} |
|
|
|
|
else { |
|
|
|
|
var selection = document.selection.createRange(); |
|
|
|
|
selection.text = text; |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
/** |
|
|
|
|
* URL encode function |
|
|
|
|
* @param string clearString Input
|
|
|
|
|
* @return string |
|
|
|
|
*/ |
|
|
|
|
function wrs_urlencode(clearString) { |
|
|
|
|
var output = ''; |
|
|
|
|
var x = 0; |
|
|
|
|
clearString = clearString.toString(); |
|
|
|
|
var regex = /(^[a-zA-Z0-9_.]*)/; |
|
|
|
|
|
|
|
|
|
var clearString_length = ((typeof clearString.length) == 'function') ? clearString.length() : clearString.length; |
|
|
|
|
|
|
|
|
|
while (x < clearString_length) { |
|
|
|
|
var match = regex.exec(clearString.substr(x)); |
|
|
|
|
if (match != null && match.length > 1 && match[1] != '') { |
|
|
|
|
output += match[1]; |
|
|
|
|
x += match[1].length; |
|
|
|
|
} |
|
|
|
|
else { |
|
|
|
|
var charCode = clearString.charCodeAt(x); |
|
|
|
|
var hexVal = charCode.toString(16); |
|
|
|
|
output += '%' + ( hexVal.length < 2 ? '0' : '' ) + hexVal.toUpperCase(); |
|
|
|
|
++x; |
|
|
|
|
} |
|
|
|
|
} |
|
|
|
|
|
|
|
|
|
return output; |
|
|
|
|
} |
Juan Carlos Raña
15 years ago
