| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Eclipse Public License, Version 1.0 (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.eclipse.org/org/documents/epl-v10.php |
| * |
| * 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.android.ide.eclipse.adt.internal.editors.menu; |
| |
| import com.android.ide.eclipse.adt.AdtPlugin; |
| import com.android.ide.eclipse.adt.AndroidConstants; |
| import com.android.ide.eclipse.adt.internal.editors.AndroidEditor; |
| import com.android.ide.eclipse.adt.internal.editors.descriptors.ElementDescriptor; |
| import com.android.ide.eclipse.adt.internal.editors.uimodel.UiElementNode; |
| import com.android.ide.eclipse.adt.internal.sdk.AndroidTargetData; |
| import com.android.sdklib.xml.AndroidXPathFactory; |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.ui.IEditorInput; |
| import org.eclipse.ui.IEditorPart; |
| import org.eclipse.ui.PartInitException; |
| import org.eclipse.ui.part.FileEditorInput; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Node; |
| |
| import javax.xml.xpath.XPath; |
| import javax.xml.xpath.XPathConstants; |
| import javax.xml.xpath.XPathExpressionException; |
| |
| /** |
| * Multi-page form editor for /res/menu XML files. |
| */ |
| public class MenuEditor extends AndroidEditor { |
| |
| public static final String ID = AndroidConstants.EDITORS_NAMESPACE + ".menu.MenuEditor"; //$NON-NLS-1$ |
| |
| /** Root node of the UI element hierarchy */ |
| private UiElementNode mUiRootNode; |
| |
| /** |
| * Creates the form editor for resources XML files. |
| */ |
| public MenuEditor() { |
| super(); |
| } |
| |
| /** |
| * Returns the root node of the UI element hierarchy, which here is |
| * the "menu" node. |
| */ |
| @Override |
| public UiElementNode getUiRootNode() { |
| return mUiRootNode; |
| } |
| |
| // ---- Base Class Overrides ---- |
| |
| /** |
| * Returns whether the "save as" operation is supported by this editor. |
| * <p/> |
| * Save-As is a valid operation for the ManifestEditor since it acts on a |
| * single source file. |
| * |
| * @see IEditorPart |
| */ |
| @Override |
| public boolean isSaveAsAllowed() { |
| return true; |
| } |
| |
| /** |
| * Create the various form pages. |
| */ |
| @Override |
| protected void createFormPages() { |
| try { |
| addPage(new MenuTreePage(this)); |
| } catch (PartInitException e) { |
| AdtPlugin.log(e, "Error creating nested page"); //$NON-NLS-1$ |
| } |
| |
| } |
| |
| /* (non-java doc) |
| * Change the tab/title name to include the project name. |
| */ |
| @Override |
| protected void setInput(IEditorInput input) { |
| super.setInput(input); |
| if (input instanceof FileEditorInput) { |
| FileEditorInput fileInput = (FileEditorInput) input; |
| IFile file = fileInput.getFile(); |
| setPartName(String.format("%1$s", file.getName())); |
| } |
| } |
| |
| /** |
| * Processes the new XML Model, which XML root node is given. |
| * |
| * @param xml_doc The XML document, if available, or null if none exists. |
| */ |
| @Override |
| protected void xmlModelChanged(Document xml_doc) { |
| // init the ui root on demand |
| initUiRootNode(false /*force*/); |
| |
| mUiRootNode.setXmlDocument(xml_doc); |
| if (xml_doc != null) { |
| ElementDescriptor root_desc = mUiRootNode.getDescriptor(); |
| try { |
| XPath xpath = AndroidXPathFactory.newXPath(); |
| Node node = (Node) xpath.evaluate("/" + root_desc.getXmlName(), //$NON-NLS-1$ |
| xml_doc, |
| XPathConstants.NODE); |
| if (node == null && root_desc.isMandatory()) { |
| // Create the root element if it doesn't exist yet (for empty new documents) |
| node = mUiRootNode.createXmlNode(); |
| } |
| |
| // Refresh the manifest UI node and all its descendants |
| mUiRootNode.loadFromXmlNode(node); |
| |
| // TODO ? startMonitoringMarkers(); |
| } catch (XPathExpressionException e) { |
| AdtPlugin.log(e, "XPath error when trying to find '%s' element in XML.", //$NON-NLS-1$ |
| root_desc.getXmlName()); |
| } |
| } |
| |
| super.xmlModelChanged(xml_doc); |
| } |
| |
| /** |
| * Creates the initial UI Root Node, including the known mandatory elements. |
| * @param force if true, a new UiRootNode is recreated even if it already exists. |
| */ |
| @Override |
| protected void initUiRootNode(boolean force) { |
| // The root UI node is always created, even if there's no corresponding XML node. |
| if (mUiRootNode == null || force) { |
| Document doc = null; |
| if (mUiRootNode != null) { |
| doc = mUiRootNode.getXmlDocument(); |
| } |
| |
| // get the target data from the opened file (and its project) |
| AndroidTargetData data = getTargetData(); |
| |
| ElementDescriptor desc; |
| if (data == null) { |
| desc = new ElementDescriptor("temp", null /*children*/); |
| } else { |
| desc = data.getMenuDescriptors().getDescriptor(); |
| } |
| |
| mUiRootNode = desc.createUiNode(); |
| mUiRootNode.setEditor(this); |
| |
| onDescriptorsChanged(doc); |
| } |
| } |
| |
| // ---- Local Methods ---- |
| |
| /** |
| * Reloads the UI manifest node from the XML, and calls the pages to update. |
| */ |
| private void onDescriptorsChanged(Document document) { |
| if (document != null) { |
| mUiRootNode.loadFromXmlNode(document); |
| } else { |
| mUiRootNode.reloadFromXmlNode(mUiRootNode.getXmlNode()); |
| } |
| } |
| } |