1 files changed, 174 insertions, 0 deletions
diff --git a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/WidgetPullParser.java b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/WidgetPullParser.java
new file mode 100644
index 000000000..dce2ccbf1
--- /dev/null
+++ b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/WidgetPullParser.java
@@ -0,0 +1,174 @@
+/*
+ * 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.layout;
+
+import com.android.SdkConstants;
+import com.android.ide.common.rendering.api.ILayoutPullParser;
+import com.android.ide.eclipse.adt.AdtConstants;
+import com.android.ide.eclipse.adt.internal.editors.layout.descriptors.ViewElementDescriptor;
+import com.android.layoutlib.api.ILayoutResult.ILayoutViewInfo;
+
+import org.xmlpull.v1.XmlPullParserException;
+
+/**
+ * {@link ILayoutPullParser} implementation to render android widget bitmap.
+ * <p/>
+ * The parser emulates a layout that contains just one widget, described by the
+ * {@link ViewElementDescriptor} passed in the constructor.
+ * <p/>
+ * This pull parser generates {@link ILayoutViewInfo}s which key is a {@link ViewElementDescriptor}.
+ */
+public class WidgetPullParser extends BasePullParser {
+
+    private final ViewElementDescriptor mDescriptor;
+    private String[][] mAttributes = new String[][] {
+            { "text", null },
+            { "layout_width", "wrap_content" },
+            { "layout_height", "wrap_content" },
+    };
+
+    public WidgetPullParser(ViewElementDescriptor descriptor) {
+        mDescriptor = descriptor;
+
+        String[] segments = mDescriptor.getFullClassName().split(AdtConstants.RE_DOT);
+        mAttributes[0][1] = segments[segments.length-1];
+    }
+
+    @Override
+    public Object getViewCookie() {
+        // we need a viewKey or the ILayoutResult will not contain any ILayoutViewInfo
+        return mDescriptor;
+    }
+
+    /**
+     * Legacy method required by {@link com.android.layoutlib.api.IXmlPullParser}
+     */
+    @Override
+    public Object getViewKey() {
+        return getViewCookie();
+    }
+
+    @Override
+    public ILayoutPullParser getParser(String layoutName) {
+        // there's no embedded layout for a single widget.
+        return null;
+    }
+
+    @Override
+    public int getAttributeCount() {
+        return mAttributes.length; // text attribute
+    }
+
+    @Override
+    public String getAttributeName(int index) {
+        if (index < mAttributes.length) {
+            return mAttributes[index][0];
+        }
+
+        return null;
+    }
+
+    @Override
+    public String getAttributeNamespace(int index) {
+        return SdkConstants.NS_RESOURCES;
+    }
+
+    @Override
+    public String getAttributePrefix(int index) {
+        // pass
+        return null;
+    }
+
+    @Override
+    public String getAttributeValue(int index) {
+        if (index < mAttributes.length) {
+            return mAttributes[index][1];
+        }
+
+        return null;
+    }
+
+    @Override
+    public String getAttributeValue(String ns, String name) {
+        if (SdkConstants.NS_RESOURCES.equals(ns)) {
+            for (String[] attribute : mAttributes) {
+                if (name.equals(attribute[0])) {
+                    return attribute[1];
+                }
+            }
+        }
+
+        return null;
+    }
+
+    @Override
+    public int getDepth() {
+        // pass
+        return 0;
+    }
+
+    @Override
+    public String getName() {
+        return mDescriptor.getXmlLocalName();
+    }
+
+    @Override
+    public String getNamespace() {
+        // pass
+        return null;
+    }
+
+    @Override
+    public String getPositionDescription() {
+        // pass
+        return null;
+    }
+
+    @Override
+    public String getPrefix() {
+        // pass
+        return null;
+    }
+
+    @Override
+    public boolean isEmptyElementTag() throws XmlPullParserException {
+        if (mParsingState == START_TAG) {
+            return true;
+        }
+
+        throw new XmlPullParserException("Call to isEmptyElementTag while not in START_TAG",
+                this, null);
+    }
+
+    @Override
+    public void onNextFromStartDocument() {
+        // just go to start_tag
+        mParsingState = START_TAG;
+    }
+
+    @Override
+    public void onNextFromStartTag() {
+        // since we have no children, just go to end_tag
+        mParsingState = END_TAG;
+    }
+
+    @Override
+    public void onNextFromEndTag() {
+        // just one tag. we are done.
+        mParsingState = END_DOCUMENT;
+    }
+}