/* | |
* Copyright (C) 2012 The Android Open Source Project | |
* | |
* Licensed under the Apache License, Version 2.0 (the "License"); | |
* you may not use this file except in compliance with the License. | |
* You may obtain a copy of the License at | |
* | |
* http://www.apache.org/licenses/LICENSE-2.0 | |
* | |
* Unless required by applicable law or agreed to in writing, software | |
* distributed under the License is distributed on an "AS IS" BASIS, | |
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
* See the License for the specific language governing permissions and | |
* limitations under the License. | |
*/ | |
package com.motorola.studio.android.generateviewbylayout.model; | |
import java.io.File; | |
import java.io.IOException; | |
import java.util.ArrayList; | |
import java.util.List; | |
import javax.xml.parsers.DocumentBuilder; | |
import javax.xml.parsers.DocumentBuilderFactory; | |
import org.w3c.dom.Document; | |
import org.w3c.dom.Node; | |
import org.w3c.dom.NodeList; | |
import org.xml.sax.SAXException; | |
import com.motorola.studio.android.common.exception.AndroidException; | |
import com.motorola.studio.android.common.log.StudioLogger; | |
import com.motorola.studio.android.generatecode.AndroidXMLFileConstants; | |
/** | |
* Represents a layout xml data under a Android project | |
*/ | |
public class LayoutFile | |
{ | |
/* | |
* Constants | |
*/ | |
private static final String FRAGMENT = "fragment"; | |
private static final String LAYOUT = "Layout"; | |
/* | |
* Layout variables | |
*/ | |
private final List<LayoutNode> nodes; | |
private final String name; | |
private final File file; | |
public LayoutFile(String layoutName, File layout) throws AndroidException | |
{ | |
this.name = layoutName; | |
this.file = layout; | |
nodes = parseDocument(file); | |
} | |
/** | |
* @return list of GUI items inside layout XML | |
*/ | |
public List<LayoutNode> getNodes() | |
{ | |
return nodes; | |
} | |
/** | |
* @return name of the layout xml (to appear in dialogs/wizards) | |
*/ | |
public String getName() | |
{ | |
return name; | |
} | |
/** | |
* @return path to layout xml file | |
*/ | |
public File getFile() | |
{ | |
return file; | |
} | |
/** | |
* Parses an IDocument object containing the layout.xml into a DOM | |
* | |
* @param document the IDocument object | |
* @throws SAXException When a parsing error occurs | |
* @throws IOException When a reading error occurs | |
*/ | |
private static final List<LayoutNode> parseDocument(File f) throws AndroidException | |
{ | |
List<LayoutNode> lNodes = new ArrayList<LayoutNode>(); | |
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance(); | |
Document doc = null; | |
try | |
{ | |
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder(); | |
doc = dBuilder.parse(f); | |
doc.getDocumentElement().normalize(); | |
} | |
catch (Exception e) | |
{ | |
StudioLogger.error(LayoutFile.class, "Error parsing layout: " + e.getMessage()); | |
throw new AndroidException(e); | |
} | |
NodeList children = doc.getChildNodes(); | |
visitNodes(children, lNodes); | |
return lNodes; | |
} | |
private static final void visitNodes(NodeList children, List<LayoutNode> lNodes) | |
{ | |
Node node; | |
for (int i = 0; i < children.getLength(); i++) | |
{ | |
node = children.item(i); | |
if ((node != null) && (node.getNodeType() == Node.ELEMENT_NODE)) | |
{ | |
LayoutNode layNode = readAttributes(node); | |
if (layNode != null) | |
{ | |
lNodes.add(layNode); | |
} | |
if (node.hasChildNodes()) | |
{ | |
visitNodes(node.getChildNodes(), lNodes); | |
} | |
} | |
} | |
} | |
private static final LayoutNode readAttributes(Node node) | |
{ | |
LayoutNode layoutNode = null; | |
Node id = node.getAttributes().getNamedItem(AndroidXMLFileConstants.ANDROID_ID); | |
if ((id != null) && id.getNodeValue().contains(AndroidXMLFileConstants.IDENTIFIER)) | |
{ | |
//only treats @+id , i.e, if the id is defined in the user-application. | |
//Using @id is intended for calling ids defined in android (or another application) | |
layoutNode = getLayoutNode(node.getNodeName()); | |
layoutNode.setNodeType(node.getNodeName()); | |
String idText = id.getNodeValue(); | |
idText = idText.replace(AndroidXMLFileConstants.IDENTIFIER, ""); | |
layoutNode.setNodeId(idText); | |
Node onClick = | |
node.getAttributes().getNamedItem(AndroidXMLFileConstants.ANDROID_ON_CLICK); | |
if (onClick != null) | |
{ | |
layoutNode.setOnClick(onClick.getNodeValue()); | |
} | |
if (node.getNodeName().contains(LAYOUT)) | |
{ | |
layoutNode.setLayout(true); | |
} | |
else | |
{ | |
layoutNode.setGUIItem(true); | |
} | |
if (node.getNodeName().toLowerCase().contains(FRAGMENT)) | |
{ | |
layoutNode.setNodeType("Fragment"); //to avoid problems with mixed case | |
layoutNode.setFragmentPlaceholder(true); | |
Node clazzNameNode = | |
node.getAttributes().getNamedItem(AndroidXMLFileConstants.ANDROID_NAME); | |
if (clazzNameNode != null) | |
{ | |
String clazzName = clazzNameNode.getNodeValue(); | |
int lastNameInd = clazzName.lastIndexOf("."); | |
if (lastNameInd >= 0) | |
{ | |
clazzName = clazzName.substring(lastNameInd + 1); | |
} | |
layoutNode.setClazzName(clazzName); | |
} | |
} | |
} | |
else if (id == null) | |
{ | |
// no android:id set | |
layoutNode = new LayoutNode(); | |
layoutNode.setNodeType(node.getNodeName()); | |
if (node.getNodeName().contains(LAYOUT)) | |
{ | |
layoutNode.setLayout(true); | |
} | |
else | |
{ | |
layoutNode.setGUIItem(true); | |
} | |
} | |
return layoutNode; | |
} | |
private static LayoutNode getLayoutNode(String nodeName) | |
{ | |
LayoutNode node = null; | |
if (nodeName.equals(LayoutNode.LayoutNodeViewType.EditText.name())) | |
{ | |
node = new EditTextNode(); | |
} | |
else if (nodeName.equals(LayoutNode.LayoutNodeViewType.CheckBox.name())) | |
{ | |
node = new CheckboxNode(); | |
} | |
else if (nodeName.equals(LayoutNode.LayoutNodeViewType.RadioButton.name())) | |
{ | |
node = new RadioButtonNode(); | |
} | |
else if (nodeName.equals(LayoutNode.LayoutNodeViewType.Spinner.name())) | |
{ | |
node = new SpinnerNode(); | |
} | |
else if (nodeName.equals(LayoutNode.LayoutNodeViewType.SeekBar.name())) | |
{ | |
node = new SeekBarNode(); | |
} | |
else | |
{ | |
node = new LayoutNode(); | |
} | |
return node; | |
} | |
} |