1 files changed, 166 insertions, 0 deletions
diff --git a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/ContextPullParser.java b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/ContextPullParser.java
new file mode 100644
index 000000000..f30406520
--- /dev/null
+++ b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/layout/ContextPullParser.java
@@ -0,0 +1,166 @@
+/*
+ * Copyright (C) 2010 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 static com.android.SdkConstants.ATTR_IGNORE;
+import static com.android.SdkConstants.ATTR_LAYOUT;
+import static com.android.SdkConstants.ATTR_LAYOUT_HEIGHT;
+import static com.android.SdkConstants.ATTR_LAYOUT_WIDTH;
+import static com.android.SdkConstants.EXPANDABLE_LIST_VIEW;
+import static com.android.SdkConstants.GRID_VIEW;
+import static com.android.SdkConstants.LIST_VIEW;
+import static com.android.SdkConstants.SPINNER;
+import static com.android.SdkConstants.TOOLS_URI;
+import static com.android.SdkConstants.VALUE_FILL_PARENT;
+import static com.android.SdkConstants.VALUE_MATCH_PARENT;
+import static com.android.SdkConstants.VIEW_FRAGMENT;
+import static com.android.SdkConstants.VIEW_INCLUDE;
+import static com.android.ide.eclipse.adt.internal.editors.layout.gle2.LayoutMetadata.KEY_FRAGMENT_LAYOUT;
+
+import com.android.SdkConstants;
+import com.android.ide.common.rendering.api.ILayoutPullParser;
+import com.android.ide.common.rendering.api.IProjectCallback;
+import com.android.ide.common.res2.ValueXmlHelper;
+import com.android.ide.eclipse.adt.internal.editors.layout.gle2.LayoutMetadata;
+import com.google.common.collect.Maps;
+
+import org.kxml2.io.KXmlParser;
+
+import java.io.File;
+import java.util.Map;
+
+/**
+ * Modified {@link KXmlParser} that adds the methods of {@link ILayoutPullParser}, and
+ * performs other layout-specific parser behavior like translating fragment tags into
+ * include tags.
+ * <p/>
+ * It will return a given parser when queried for one through
+ * {@link ILayoutPullParser#getParser(String)} for a given name.
+ *
+ */
+public class ContextPullParser extends KXmlParser implements ILayoutPullParser {
+    private static final String COMMENT_PREFIX = "<!--"; //$NON-NLS-1$
+    private static final String COMMENT_SUFFIX = "-->"; //$NON-NLS-1$
+    /** The callback to request parsers from */
+    private final IProjectCallback mProjectCallback;
+    /** The {@link File} for the layout currently being parsed */
+    private File mFile;
+    /** The layout to be shown for the current {@code <fragment>} tag. Usually null. */
+    private String mFragmentLayout = null;
+
+    /**
+     * Creates a new {@link ContextPullParser}
+     *
+     * @param projectCallback the associated callback
+     * @param file the file to be parsed
+     */
+    public ContextPullParser(IProjectCallback projectCallback, File file) {
+        super();
+        mProjectCallback = projectCallback;
+        mFile = file;
+    }
+
+    // --- Layout lib API methods
+
+    @Override
+    /**
+     * this is deprecated but must still be implemented for older layout libraries.
+     * @deprecated use {@link IProjectCallback#getParser(String)}.
+     */
+    @Deprecated
+    public ILayoutPullParser getParser(String layoutName) {
+        return mProjectCallback.getParser(layoutName);
+    }
+
+    @Override
+    public Object getViewCookie() {
+        String name = super.getName();
+        if (name == null) {
+            return null;
+        }
+
+        // Store tools attributes if this looks like a layout we'll need adapter view
+        // bindings for in the ProjectCallback.
+        if (LIST_VIEW.equals(name)
+                || EXPANDABLE_LIST_VIEW.equals(name)
+                || GRID_VIEW.equals(name)
+                || SPINNER.equals(name)) {
+            Map<String, String> map = null;
+            int count = getAttributeCount();
+            for (int i = 0; i < count; i++) {
+                String namespace = getAttributeNamespace(i);
+                if (namespace != null && namespace.equals(TOOLS_URI)) {
+                    String attribute = getAttributeName(i);
+                    if (attribute.equals(ATTR_IGNORE)) {
+                        continue;
+                    }
+                    if (map == null) {
+                        map = Maps.newHashMapWithExpectedSize(4);
+                    }
+                    map.put(attribute, getAttributeValue(i));
+                }
+            }
+
+            return map;
+        }
+
+        return null;
+    }
+
+    // --- KXMLParser override
+
+    @Override
+    public String getName() {
+        String name = super.getName();
+
+        // At designtime, replace fragments with includes.
+        if (name.equals(VIEW_FRAGMENT)) {
+            mFragmentLayout = LayoutMetadata.getProperty(this, KEY_FRAGMENT_LAYOUT);
+            if (mFragmentLayout != null) {
+                return VIEW_INCLUDE;
+            }
+        } else {
+            mFragmentLayout = null;
+        }
+
+
+        return name;
+    }
+
+    @Override
+    public String getAttributeValue(String namespace, String localName) {
+        if (ATTR_LAYOUT.equals(localName) && mFragmentLayout != null) {
+            return mFragmentLayout;
+        }
+
+        String value = super.getAttributeValue(namespace, localName);
+
+        // on the fly convert match_parent to fill_parent for compatibility with older
+        // platforms.
+        if (VALUE_MATCH_PARENT.equals(value) &&
+                (ATTR_LAYOUT_WIDTH.equals(localName) ||
+                        ATTR_LAYOUT_HEIGHT.equals(localName)) &&
+                SdkConstants.NS_RESOURCES.equals(namespace)) {
+            return VALUE_FILL_PARENT;
+        }
+
+        // Handle unicode escapes etc
+        value = ValueXmlHelper.unescapeResourceString(value, false, false);
+
+        return value;
+    }
+}