mirror of
https://bitbucket.org/wisemapping/wisemapping-open-source.git
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371 lines
12 KiB
JavaScript
371 lines
12 KiB
JavaScript
/*
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* Copyright [2011] [wisemapping]
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*
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* Licensed under WiseMapping Public License, Version 1.0 (the "License").
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* It is basically the Apache License, Version 2.0 (the "License") plus the
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* "powered by wisemapping" text requirement on every single page;
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the license at
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*
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* http://www.wisemapping.org/license
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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core.Utils =
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{
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escapeInvalidTags: function (text) {
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//todo:Pablo. scape invalid tags in a text
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return text;
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}
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};
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/*
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Function: $defined
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Returns true if the passed in value/object is defined, that means is not null or undefined.
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Arguments:
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obj - object to inspect
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*/
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function $defined(obj) {
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return (obj != undefined);
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}
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;
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/**
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* http://kevlindev.com/tutorials/javascript/inheritance/index.htm
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* A function used to extend one class with another
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*
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* @param {Object} subClass
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* The inheriting class, or subclass
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* @param {Object} baseClass
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* The class from which to inherit
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*/
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objects = {};
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objects.extend = function(subClass, baseClass) {
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function inheritance() {
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}
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inheritance.prototype = baseClass.prototype;
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subClass.prototype = new inheritance();
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subClass.prototype.constructor = subClass;
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subClass.baseConstructor = baseClass;
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subClass.superClass = baseClass.prototype;
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};
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$assert = function(assert, message) {
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if (!$defined(assert) || !assert) {
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var stack;
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try {
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null.eval();
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} catch(e) {
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stack = e;
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}
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wLogger.error(message + "," + stack);
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// core.Logger.logError(message + "," + stack);
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}
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};
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Math.sign = function(value) {
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return (value >= 0) ? 1 : -1;
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};
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/**
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* Retrieve the mouse position.
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*/
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core.Utils.getMousePosition = function(event) {
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var xcoord = -1;
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var ycoord = -1;
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if (!$defined(event)) {
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if ($defined(window.event)) {
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//Internet Explorer
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event = window.event;
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} else {
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//total failure, we have no way of referencing the event
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throw "Could not obtain mouse position";
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}
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}
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if ($defined(event.$extended)) {
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event = event.event;
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}
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if (typeof( event.pageX ) == 'number') {
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//most browsers
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xcoord = event.pageX;
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ycoord = event.pageY;
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} else if (typeof( event.clientX ) == 'number') {
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//Internet Explorer and older browsers
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//other browsers provide this, but follow the pageX/Y branch
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xcoord = event.clientX;
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ycoord = event.clientY;
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var badOldBrowser = ( window.navigator.userAgent.indexOf('Opera') + 1 ) ||
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( window.ScriptEngine && ScriptEngine().indexOf('InScript') + 1 ) ||
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( navigator.vendor == 'KDE' );
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if (!badOldBrowser) {
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if (document.body && ( document.body.scrollLeft || document.body.scrollTop )) {
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//IE 4, 5 & 6 (in non-standards compliant mode)
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xcoord += document.body.scrollLeft;
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ycoord += document.body.scrollTop;
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} else if (document.documentElement && ( document.documentElement.scrollLeft || document.documentElement.scrollTop )) {
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//IE 6 (in standards compliant mode)
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xcoord += document.documentElement.scrollLeft;
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ycoord += document.documentElement.scrollTop;
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}
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}
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} else {
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throw "Could not obtain mouse position";
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}
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return {x:xcoord,y:ycoord};
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};
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/**
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* Calculate the position of the passed element.
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*/
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core.Utils.workOutDivElementPosition = function(divElement) {
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var curleft = 0;
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var curtop = 0;
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if ($defined(divElement.offsetParent)) {
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curleft = divElement.offsetLeft;
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curtop = divElement.offsetTop;
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while (divElement = divElement.offsetParent) {
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curleft += divElement.offsetLeft;
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curtop += divElement.offsetTop;
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}
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}
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return {x:curleft,y:curtop};
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};
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core.Utils.innerXML = function(/*Node*/node) {
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// summary:
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// Implementation of MS's innerXML function.
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if ($defined(node.innerXML)) {
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return node.innerXML;
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// string
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} else if ($defined(node.xml)) {
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return node.xml;
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// string
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} else if ($defined(XMLSerializer)) {
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return (new XMLSerializer()).serializeToString(node);
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// string
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}
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};
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core.Utils.createDocument = function() {
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// summary:
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// cross-browser implementation of creating an XML document object.
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var doc = null;
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var _document = window.document;
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if ($defined(window.ActiveXObject)) {
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var prefixes = [ "MSXML2", "Microsoft", "MSXML", "MSXML3" ];
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for (var i = 0; i < prefixes.length; i++) {
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try {
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doc = new ActiveXObject(prefixes[i] + ".XMLDOM");
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} catch(e) { /* squelch */
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}
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;
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if ($defined(doc)) {
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break;
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}
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}
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} else if ((_document.implementation) &&
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(_document.implementation.createDocument)) {
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doc = _document.implementation.createDocument("", "", null);
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}
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return doc;
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// DOMDocument
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};
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core.Utils.createDocumentFromText = function(/*string*/str, /*string?*/mimetype) {
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// summary:
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// attempts to create a Document object based on optional mime-type,
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// using str as the contents of the document
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if (!$defined(mimetype)) {
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mimetype = "text/xml";
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}
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if ($defined(window.DOMParser)) {
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var parser = new DOMParser();
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return parser.parseFromString(str, mimetype);
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// DOMDocument
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} else if ($defined(window.ActiveXObject)) {
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var domDoc = core.Utils.createDocument();
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if ($defined(domDoc)) {
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domDoc.async = false;
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domDoc.loadXML(str);
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return domDoc;
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// DOMDocument
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}
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}
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return null;
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};
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core.Utils.calculateRelationShipPointCoordinates = function(topic, controlPoint) {
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var size = topic.getSize();
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var position = topic.getPosition();
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var m = (position.y - controlPoint.y) / (position.x - controlPoint.x);
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var y,x;
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var gap = 5;
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if (controlPoint.y > position.y + (size.height / 2)) {
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y = position.y + (size.height / 2) + gap;
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x = position.x - ((position.y - y) / m);
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if (x > position.x + (size.width / 2)) {
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x = position.x + (size.width / 2);
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} else if (x < position.x - (size.width / 2)) {
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x = position.x - (size.width / 2);
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}
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} else if (controlPoint.y < position.y - (size.height / 2)) {
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y = position.y - (size.height / 2) - gap;
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x = position.x - ((position.y - y) / m);
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if (x > position.x + (size.width / 2)) {
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x = position.x + (size.width / 2);
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} else if (x < position.x - (size.width / 2)) {
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x = position.x - (size.width / 2);
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}
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} else if (controlPoint.x < (position.x - size.width / 2)) {
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x = position.x - (size.width / 2) - gap;
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y = position.y - (m * (position.x - x));
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} else {
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x = position.x + (size.width / 2) + gap;
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y = position.y - (m * (position.x - x));
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}
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return new core.Point(x, y);
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};
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core.Utils.calculateDefaultControlPoints = function(srcPos, tarPos) {
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var y = srcPos.y - tarPos.y;
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var x = srcPos.x - tarPos.x;
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var m = y / x;
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var l = Math.sqrt(y * y + x * x) / 3;
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var fix = 1;
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if (srcPos.x > tarPos.x) {
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fix = -1;
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}
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var x1 = srcPos.x + Math.sqrt(l * l / (1 + (m * m))) * fix;
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var y1 = m * (x1 - srcPos.x) + srcPos.y;
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var x2 = tarPos.x + Math.sqrt(l * l / (1 + (m * m))) * fix * -1;
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var y2 = m * (x2 - tarPos.x) + tarPos.y;
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return [new core.Point(-srcPos.x + x1, -srcPos.y + y1),new core.Point(-tarPos.x + x2, -tarPos.y + y2)];
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};
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core.Utils.setVisibilityAnimated = function(elems, isVisible, doneFn) {
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core.Utils.animateVisibility(elems, isVisible, doneFn);
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};
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core.Utils.setChildrenVisibilityAnimated = function(rootElem, isVisible) {
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var children = core.Utils._addInnerChildrens(rootElem);
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core.Utils.animateVisibility(children, isVisible);
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};
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core.Utils.animateVisibility = function (elems, isVisible, doneFn) {
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var _fadeEffect = null;
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var _opacity = (isVisible ? 0 : 1);
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if (isVisible) {
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elems.forEach(function(child, index) {
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if ($defined(child)) {
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child.setOpacity(_opacity);
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child.setVisibility(isVisible);
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}
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});
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}
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var fadeEffect = function(index) {
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var step = 10;
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if ((_opacity <= 0 && !isVisible) || (_opacity >= 1 && isVisible)) {
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$clear(_fadeEffect);
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_fadeEffect = null;
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elems.forEach(function(child, index) {
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if ($defined(child)) {
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child.setVisibility(isVisible);
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}
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});
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if ($defined(doneFn))
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doneFn.attempt();
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}
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else {
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var fix = 1;
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if (isVisible) {
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fix = -1;
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}
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_opacity -= (1 / step) * fix;
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elems.forEach(function(child, index) {
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if ($defined(child)) {
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child.setOpacity(_opacity);
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}
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});
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}
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};
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_fadeEffect = fadeEffect.periodical(10);
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};
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core.Utils.animatePosition = function (elems, doneFn, designer) {
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var _moveEffect = null;
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var i = 10;
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var step = 10;
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var moveEffect = function () {
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if (i > 0) {
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var keys = elems.keys();
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for (var j = 0; j < keys.length; j++) {
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var id = keys[j];
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var mod = elems.get(id);
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var allTopics = designer._getTopics();
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var currentTopic = allTopics.filter(function(node) {
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return node.getId() == id;
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})[0];
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var xStep = (mod.originalPos.x - mod.newPos.x) / step;
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var yStep = (mod.originalPos.y - mod.newPos.y) / step;
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var newPos = currentTopic.getPosition().clone();
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newPos.x += xStep;
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newPos.y += yStep;
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currentTopic.setPosition(newPos, false);
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}
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} else {
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$clear(_moveEffect);
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var keys = elems.keys();
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for (var j = 0; j < keys.length; j++) {
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var id = keys[j];
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var mod = elems.get(id);
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var allTopics = designer._getTopics();
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var currentTopic = allTopics.filter(function(node) {
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return node.getId() == id;
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})[0];
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currentTopic.setPosition(mod.originalPos, false);
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}
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if ($defined(doneFn))
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doneFn.attempt();
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}
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i--;
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};
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_moveEffect = moveEffect.periodical(10);
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};
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core.Utils._addInnerChildrens = function(elem) {
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var children = [];
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var childs = elem._getChildren();
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for (var i = 0; i < childs.length; i++) {
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var child = childs[i];
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children.push(child);
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children.push(child.getOutgoingLine());
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var relationships = child.getRelationships();
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children = children.concat(relationships);
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var innerChilds = core.Utils._addInnerChildrens(child);
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children = children.concat(innerChilds);
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}
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return children;
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}; |