--- /dev/null
+/*
+ * 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.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 com.android.sdklib.SdkConstants;
+
+import org.w3c.dom.DOMException;
+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.
+ *
+ * @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();
+ }
+
+ 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) {
+ return String.format("%1$s (%2$s)", attr, getDescriptor().getUiName());
+ }
+ }
+ }
+
+ return String.format("%1$s", getDescriptor().getUiName());
+ }
+
+ /**
+ * 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 "";
+ }
+ }
+}
+
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