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/* |
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* Activiti Modeler component part of the Activiti project |
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* Copyright 2005-2014 Alfresco Software, Ltd. All rights reserved. |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with this library; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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/** |
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* Utility methods are grouped together here. |
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*/ |
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var EDITOR = EDITOR || {}; |
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EDITOR.UTIL = { |
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getParameterByName: function (name) { |
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name = name.replace(/[\[]/, "\\[").replace(/[\]]/, "\\]"); |
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var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"), |
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results = regex.exec(location.search); |
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return results == null ? "" : decodeURIComponent(results[1].replace(/\+/g, " ")); |
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}, |
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/** |
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* Starts at the provided start element, and walks all preceding elements in the graph. |
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* Each element is tested to have a certain property and, if it has, adds this property value |
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* to the return result list. |
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*/ |
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collectPropertiesFromPrecedingElements: function (startElement, propertyType) { |
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var visitedElements = []; |
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var collectedProperties = []; |
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EDITOR.UTIL._visitElementAndCollectProperty(startElement, propertyType, visitedElements, collectedProperties); |
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return collectedProperties; |
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}, |
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/** |
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* Starts at the provided start element, and walks all preceding elements in the graph. |
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* Each element is tested to be a specific stencil id and, if it has, adds the element |
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* to the return result list. |
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*/ |
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collectElementsFromPrecedingElements: function (startElement, stencilId) { |
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var visitedElements = []; |
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var collectedElements = []; |
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var incomingShapesIterator = startElement.getIncomingShapes(); |
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if (incomingShapesIterator) { |
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for (var i = 0; i < incomingShapesIterator.length; i++) { |
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var incomingShape = incomingShapesIterator[i]; |
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if (visitedElements.indexOf(incomingShape.id) < 0) { |
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EDITOR.UTIL._visitElementAndCollectElement(incomingShape, stencilId, visitedElements, collectedElements); |
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} |
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} |
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} |
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return collectedElements; |
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}, |
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_visitElementAndCollectProperty: function (element, propertyType, visitedElementsArray, collectedProperties) { |
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visitedElementsArray.push(element.id); |
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var property = element.properties[propertyType] |
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if (property) { |
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collectedProperties.push(property); |
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} |
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var incomingShapesIterator = element.getIncomingShapes(); |
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if (incomingShapesIterator) { |
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for (var i = 0; i < incomingShapesIterator.length; i++) { |
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var incomingShape = incomingShapesIterator[i]; |
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if (visitedElementsArray.indexOf(incomingShape.id) < 0) { |
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EDITOR.UTIL._visitElementAndCollectProperty(incomingShape, propertyType, visitedElementsArray, collectedProperties); |
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} |
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} |
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} |
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}, |
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_visitElementAndCollectElement: function (element, stencilId, visitedElementsArray, collectedElements) { |
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visitedElementsArray.push(element.id); |
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var elementStencilId = element.getStencil().id(); |
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if (elementStencilId && elementStencilId.indexOf(stencilId) >= 0) { |
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collectedElements.push(element); |
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} |
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var incomingShapesIterator = element.getIncomingShapes(); |
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if (incomingShapesIterator) { |
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for (var i = 0; i < incomingShapesIterator.length; i++) { |
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var incomingShape = incomingShapesIterator[i]; |
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if (visitedElementsArray.indexOf(incomingShape.id) < 0) { |
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EDITOR.UTIL._visitElementAndCollectElement(incomingShape, stencilId, visitedElementsArray, collectedElements); |
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} |
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} |
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} |
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}, |
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/** |
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* Goes up the chain of parents of the provided element. |
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* When the property is encountered, its value is immediately returned. |
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* If the chain of parents is completely walked through, undefined is returned. |
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*/ |
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getPropertyFromParent: function (element, propertyType) { |
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if (element.parent) { |
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return EDITOR.UTIL._getPropertyFromParent(element.parent, propertyType); |
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} else { |
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return undefined; |
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} |
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}, |
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_getPropertyFromParent: function (parentElement, propertyType) { |
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var property = parentElement.properties[propertyType]; |
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if (property) { |
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return property; |
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} |
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if (parentElement.parent) { |
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return EDITOR.UTIL._getPropertyFromParent(parentElement.parent, propertyType); |
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} else { |
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return undefined; |
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} |
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} |
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}; |