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