1 files changed, 83 insertions, 0 deletions
diff --git a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/formatting/AndroidXmlFormatter.java b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/formatting/AndroidXmlFormatter.java
new file mode 100644
index 000000000..403095450
--- /dev/null
+++ b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/formatting/AndroidXmlFormatter.java
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2011 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.formatting;
+
+import com.android.ide.eclipse.adt.internal.preferences.AdtPrefs;
+
+import org.eclipse.jface.text.BadLocationException;
+import org.eclipse.jface.text.IDocument;
+import org.eclipse.jface.text.IRegion;
+import org.eclipse.jface.text.TypedPosition;
+import org.eclipse.jface.text.formatter.FormattingContext;
+import org.eclipse.jface.text.formatter.FormattingContextProperties;
+import org.eclipse.jface.text.formatter.IContentFormatter;
+import org.eclipse.jface.text.formatter.IContentFormatterExtension;
+import org.eclipse.jface.text.formatter.IFormattingContext;
+import org.eclipse.jface.text.formatter.IFormattingStrategy;
+import org.eclipse.wst.xml.core.text.IXMLPartitions;
+
+/**
+ * Formatter which replaces the Eclipse formatter for the Android XML editors, and
+ * delegates to it if the user has chosen to use the Eclipse formatter instead by turning
+ * off {@link AdtPrefs#getUseCustomXmlFormatter()}
+ */
+public class AndroidXmlFormatter implements IContentFormatter, IContentFormatterExtension {
+    @Override
+    public final void format(IDocument document, IRegion region) {
+        /**
+         * This method is probably not going to be called. It is part of the
+         * {@link IContentFormatter} but since we also implement
+         * {@link IContentFormatterExtension} Eclipse should /* be calling
+         * {@link #format(IDocument,IFormattingContext)} instead. However, for
+         * completeness (and because other implementations of {@link IContentFormatter}
+         * also do this we might as well make the method behave correctly
+         */
+        FormattingContext context = new FormattingContext();
+        context.setProperty(FormattingContextProperties.CONTEXT_DOCUMENT, Boolean.FALSE);
+        context.setProperty(FormattingContextProperties.CONTEXT_REGION, region);
+
+        format(document, context);
+    }
+
+    @Override
+    public IFormattingStrategy getFormattingStrategy(String contentType) {
+        return new AndroidXmlFormattingStrategy();
+    }
+
+    @Override
+    public void format(IDocument document, IFormattingContext context) {
+        context.setProperty(FormattingContextProperties.CONTEXT_MEDIUM, document);
+        formatMaster(context, document, 0, document.getLength());
+    }
+
+    protected void formatMaster(IFormattingContext context, IDocument document, int offset,
+            int length) {
+        try {
+            final int delta= offset - document.getLineInformationOfOffset(offset).getOffset();
+            offset -= delta;
+            length += delta;
+        } catch (BadLocationException exception) {
+            // Do nothing
+        }
+
+        AndroidXmlFormattingStrategy strategy = new AndroidXmlFormattingStrategy();
+        context.setProperty(FormattingContextProperties.CONTEXT_PARTITION,
+                new TypedPosition(offset, length, IXMLPartitions.XML_DEFAULT));
+        strategy.formatterStarts(context);
+        strategy.format();
+        strategy.formatterStops();
+    }
+}