1 files changed, 144 insertions, 0 deletions
diff --git a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/formatting/EclipseXmlFormatPreferences.java b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/formatting/EclipseXmlFormatPreferences.java
new file mode 100644
index 000000000..6c00b8ee2
--- /dev/null
+++ b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/formatting/EclipseXmlFormatPreferences.java
@@ -0,0 +1,144 @@
+/*
+ * 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.annotations.NonNull;
+import com.android.annotations.Nullable;
+import com.android.annotations.VisibleForTesting;
+import com.android.ide.common.xml.XmlFormatPreferences;
+import com.android.ide.eclipse.adt.internal.preferences.AdtPrefs;
+import com.android.ide.common.xml.XmlAttributeSortOrder;
+
+import org.eclipse.core.runtime.Preferences;
+import org.eclipse.jface.preference.IPreferenceStore;
+import org.eclipse.ui.internal.editors.text.EditorsPlugin;
+import org.eclipse.ui.texteditor.AbstractDecoratedTextEditorPreferenceConstants;
+import org.eclipse.wst.sse.core.internal.provisional.IndexedRegion;
+import org.eclipse.wst.xml.core.internal.XMLCorePlugin;
+import org.eclipse.wst.xml.core.internal.preferences.XMLCorePreferenceNames;
+import org.w3c.dom.Attr;
+
+import java.util.Comparator;
+
+/**
+ * Formatting preferences used by the Android XML formatter.
+ */
+public class EclipseXmlFormatPreferences extends XmlFormatPreferences {
+    @VisibleForTesting
+    protected EclipseXmlFormatPreferences() {
+    }
+
+    /**
+     * Creates a new {@link EclipseXmlFormatPreferences} based on the current settings
+     * in {@link AdtPrefs}
+     *
+     * @return an {@link EclipseXmlFormatPreferences} object
+     */
+    @NonNull
+    public static EclipseXmlFormatPreferences create() {
+        EclipseXmlFormatPreferences p = new EclipseXmlFormatPreferences();
+        AdtPrefs prefs = AdtPrefs.getPrefs();
+
+        p.useEclipseIndent = prefs.isUseEclipseIndent();
+        p.removeEmptyLines = prefs.isRemoveEmptyLines();
+        p.oneAttributeOnFirstLine = prefs.isOneAttributeOnFirstLine();
+        p.sortAttributes = prefs.getAttributeSort();
+        p.spaceBeforeClose = prefs.isSpaceBeforeClose();
+
+        return p;
+    }
+
+    @Override
+    @Nullable
+    public Comparator<Attr> getAttributeComparator() {
+        // Can't just skip sorting; the attribute table moves attributes out of order
+        // due to hashing, so sort by node positions
+        if (sortAttributes == XmlAttributeSortOrder.NO_SORTING) {
+            return EXISTING_ORDER_COMPARATOR;
+        }
+        return sortAttributes.getAttributeComparator();
+    }
+
+    private static final Comparator<Attr> EXISTING_ORDER_COMPARATOR = new Comparator<Attr>() {
+        @Override
+        public int compare(Attr attr1, Attr attr2) {
+            IndexedRegion region1 = (IndexedRegion) attr1;
+            IndexedRegion region2 = (IndexedRegion) attr2;
+
+            return region1.getStartOffset() - region2.getStartOffset();
+        }
+    };
+
+    // The XML module settings do not have a public API. We should replace this with JDT
+    // settings anyway since that's more likely what users have configured and want applied
+    // to their XML files
+
+    /**
+     * Returns the string to use to indent one indentation level
+     *
+     * @return the string used to indent one indentation level
+     */
+    @Override
+    @SuppressWarnings({
+            "restriction", "deprecation"
+    })
+    public String getOneIndentUnit() {
+        if (useEclipseIndent) {
+            // Look up Eclipse indent preferences
+            // TODO: Use the JDT preferences instead, which make more sense
+            Preferences preferences = XMLCorePlugin.getDefault().getPluginPreferences();
+            int indentationWidth = preferences.getInt(XMLCorePreferenceNames.INDENTATION_SIZE);
+            String indentCharPref = preferences.getString(XMLCorePreferenceNames.INDENTATION_CHAR);
+            boolean useSpaces = XMLCorePreferenceNames.SPACE.equals(indentCharPref);
+
+            StringBuilder indentString = new StringBuilder();
+            for (int j = 0; j < indentationWidth; j++) {
+                if (useSpaces) {
+                    indentString.append(' ');
+                } else {
+                    indentString.append('\t');
+                }
+            }
+            mOneIndentUnit = indentString.toString();
+        }
+
+        return mOneIndentUnit;
+    }
+
+    /**
+     * Returns the number of spaces used to display a single tab character
+     *
+     * @return the number of spaces used to display a single tab character
+     */
+    @Override
+    @SuppressWarnings("restriction") // Editor settings
+    public int getTabWidth() {
+        if (mTabWidth == -1) {
+            String key = AbstractDecoratedTextEditorPreferenceConstants.EDITOR_TAB_WIDTH;
+            try {
+                IPreferenceStore prefs = EditorsPlugin.getDefault().getPreferenceStore();
+                mTabWidth = prefs.getInt(key);
+            } catch (Throwable t) {
+                // Pass: We'll pick a suitable default instead below
+            }
+            if (mTabWidth <= 0) {
+                mTabWidth = 4;
+            }
+        }
+
+        return mTabWidth;
+    }
+}