| /* |
| * Copyright (C) 2007 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.manifest.model; |
| |
| import com.android.SdkConstants; |
| import com.android.ide.eclipse.adt.internal.editors.descriptors.ElementDescriptor; |
| import com.android.ide.eclipse.adt.internal.editors.manifest.descriptors.AndroidManifestDescriptors; |
| import com.android.ide.eclipse.adt.internal.editors.manifest.descriptors.ManifestElementDescriptor; |
| import com.android.ide.eclipse.adt.internal.editors.uimodel.UiAttributeNode; |
| import com.android.ide.eclipse.adt.internal.editors.uimodel.UiElementNode; |
| import com.android.ide.eclipse.adt.internal.sdk.AndroidTargetData; |
| |
| import org.w3c.dom.Element; |
| |
| /** |
| * Represents an XML node that can be modified by the user interface in the XML editor. |
| * <p/> |
| * Each tree viewer used in the application page's parts needs to keep a model representing |
| * each underlying node in the tree. This interface represents the base type for such a node. |
| * <p/> |
| * Each node acts as an intermediary model between the actual XML model (the real data support) |
| * and the tree viewers or the corresponding page parts. |
| * <p/> |
| * Element nodes don't contain data per se. Their data is contained in their attributes |
| * as well as their children's attributes, see {@link UiAttributeNode}. |
| * <p/> |
| * The structure of a given {@link UiElementNode} is declared by a corresponding |
| * {@link ElementDescriptor}. |
| */ |
| public final class UiManifestElementNode extends UiElementNode { |
| |
| /** |
| * Creates a new {@link UiElementNode} described by a given {@link ElementDescriptor}. |
| * |
| * @param elementDescriptor The {@link ElementDescriptor} for the XML node. Cannot be null. |
| */ |
| public UiManifestElementNode(ManifestElementDescriptor elementDescriptor) { |
| super(elementDescriptor); |
| } |
| |
| /** |
| * Computes a short string describing the UI node suitable for tree views. |
| * Uses the element's attribute "android:name" if present, or the "android:label" one |
| * followed by the element's name if not repeated. |
| * |
| * @return A short string describing the UI node suitable for tree views. |
| */ |
| @Override |
| public String getShortDescription() { |
| AndroidTargetData target = getAndroidTarget(); |
| AndroidManifestDescriptors manifestDescriptors = null; |
| if (target != null) { |
| manifestDescriptors = target.getManifestDescriptors(); |
| } |
| |
| String name = getDescriptor().getUiName(); |
| |
| if (manifestDescriptors != null && |
| getXmlNode() != null && |
| getXmlNode() instanceof Element && |
| getXmlNode().hasAttributes()) { |
| |
| // Application and Manifest nodes have a special treatment: they are unique nodes |
| // so we don't bother trying to differentiate their strings and we fall back to |
| // just using the UI name below. |
| ElementDescriptor desc = getDescriptor(); |
| if (desc != manifestDescriptors.getManifestElement() && |
| desc != manifestDescriptors.getApplicationElement()) { |
| Element elem = (Element) getXmlNode(); |
| String attr = _Element_getAttributeNS(elem, |
| SdkConstants.NS_RESOURCES, |
| AndroidManifestDescriptors.ANDROID_NAME_ATTR); |
| if (attr == null || attr.length() == 0) { |
| attr = _Element_getAttributeNS(elem, |
| SdkConstants.NS_RESOURCES, |
| AndroidManifestDescriptors.ANDROID_LABEL_ATTR); |
| } |
| if (attr != null && attr.length() > 0) { |
| // If the ui name is repeated in the attribute value, don't use it. |
| // Typical case is to avoid ".pkg.MyActivity (Activity)". |
| if (attr.contains(name)) { |
| return attr; |
| } else { |
| return String.format("%1$s (%2$s)", attr, name); |
| } |
| } |
| } |
| } |
| |
| return String.format("%1$s", name); |
| } |
| |
| /** |
| * Retrieves an attribute value by local name and namespace URI. |
| * <br>Per [<a href='http://www.w3.org/TR/1999/REC-xml-names-19990114/'>XML Namespaces</a>] |
| * , applications must use the value <code>null</code> as the |
| * <code>namespaceURI</code> parameter for methods if they wish to have |
| * no namespace. |
| * <p/> |
| * Note: This is a wrapper around {@link Element#getAttributeNS(String, String)}. |
| * In some versions of webtools, the getAttributeNS implementation crashes with an NPE. |
| * This wrapper will return null instead. |
| * |
| * @see Element#getAttributeNS(String, String) |
| * @see <a href="https://bugs.eclipse.org/bugs/show_bug.cgi?id=318108">https://bugs.eclipse.org/bugs/show_bug.cgi?id=318108</a> |
| * @return The result from {@link Element#getAttributeNS(String, String)} or or an empty string. |
| */ |
| private String _Element_getAttributeNS(Element element, |
| String namespaceURI, |
| String localName) { |
| try { |
| return element.getAttributeNS(namespaceURI, localName); |
| } catch (Exception ignore) { |
| return ""; |
| } |
| } |
| } |
| |