/*
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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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};
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