| /* |
| * 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.xml; |
| |
| 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.FirstElementParser; |
| import com.android.ide.eclipse.adt.internal.editors.descriptors.DocumentDescriptor; |
| import com.android.ide.eclipse.adt.internal.editors.descriptors.ElementDescriptor; |
| import com.android.ide.eclipse.adt.internal.editors.uimodel.UiDocumentNode; |
| import com.android.ide.eclipse.adt.internal.sdk.AndroidTargetData; |
| import com.android.ide.eclipse.adt.internal.sdk.Sdk; |
| import com.android.sdklib.IAndroidTarget; |
| import com.android.sdklib.SdkConstants; |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.IProject; |
| 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; |
| |
| /** |
| * Multi-page form editor for /res/xml XML files. |
| */ |
| public class XmlEditor extends AndroidEditor { |
| |
| public static final String ID = AndroidConstants.EDITORS_NAMESPACE + ".xml.XmlEditor"; //$NON-NLS-1$ |
| |
| /** Root node of the UI element hierarchy */ |
| private UiDocumentNode mUiRootNode; |
| |
| /** |
| * Creates the form editor for resources XML files. |
| */ |
| public XmlEditor() { |
| super(); |
| } |
| |
| /** |
| * Returns the root node of the UI element hierarchy, which here |
| * is the document node. |
| */ |
| @Override |
| public UiDocumentNode getUiRootNode() { |
| return mUiRootNode; |
| } |
| |
| // ---- Static ---- |
| |
| /** |
| * Indicates if this is a file that this {@link XmlEditor} can handle. |
| * <p/> |
| * The {@link XmlEditor} can handle XML files that have a <searchable> or |
| * <Preferences> root XML element with the adequate xmlns:android attribute. |
| * |
| * @return True if the {@link XmlEditor} can handle that file. |
| */ |
| public static boolean canHandleFile(IFile file) { |
| // we need the target of the file's project to access the descriptors. |
| IProject project = file.getProject(); |
| IAndroidTarget target = Sdk.getCurrent().getTarget(project); |
| if (target != null) { |
| // Note: the target data can be null when an SDK is not finished loading yet. |
| // We can potentially arrive here when Eclipse is started with a file previously |
| // open and the resource gets refreshed -- at that point we may not have the SDK yet. |
| AndroidTargetData data = Sdk.getCurrent().getTargetData(target); |
| |
| FirstElementParser.Result result = FirstElementParser.parse( |
| file.getLocation().toOSString(), |
| SdkConstants.NS_RESOURCES); |
| |
| if (result != null && data != null) { |
| String name = result.getElement(); |
| if (name != null && result.getXmlnsPrefix() != null) { |
| DocumentDescriptor desc = data.getXmlDescriptors().getDescriptor(); |
| for (ElementDescriptor elem : desc.getChildren()) { |
| if (elem.getXmlName().equals(name)) { |
| // This is an element that this document can handle |
| return true; |
| } |
| } |
| } |
| } |
| } |
| |
| return false; |
| } |
| |
| // ---- 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 XmlTreePage(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.loadFromXmlNode(xml_doc); |
| |
| 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(); |
| |
| DocumentDescriptor desc; |
| if (data == null) { |
| desc = new DocumentDescriptor("temp", null /*children*/); |
| } else { |
| desc = data.getXmlDescriptors().getDescriptor(); |
| } |
| |
| mUiRootNode = (UiDocumentNode) 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()); |
| } |
| } |
| |
| } |