1 files changed, 221 insertions, 0 deletions
diff --git a/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/XmlEditorMultiOutline.java b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/XmlEditorMultiOutline.java
new file mode 100644
index 000000000..61db9f313
--- /dev/null
+++ b/eclipse/plugins/com.android.ide.eclipse.adt/src/com/android/ide/eclipse/adt/internal/editors/XmlEditorMultiOutline.java
@@ -0,0 +1,221 @@
+/*
+ * Copyright (C) 2012 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;
+
+import com.android.ide.eclipse.adt.AdtPlugin;
+
+import org.eclipse.jface.action.IMenuManager;
+import org.eclipse.jface.action.IStatusLineManager;
+import org.eclipse.jface.action.IToolBarManager;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.ISelectionChangedListener;
+import org.eclipse.jface.viewers.SelectionChangedEvent;
+import org.eclipse.jface.viewers.StructuredSelection;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.ui.IActionBars;
+import org.eclipse.ui.PartInitException;
+import org.eclipse.ui.part.IPageBookViewPage;
+import org.eclipse.ui.part.Page;
+import org.eclipse.ui.part.PageBook;
+import org.eclipse.ui.views.contentoutline.IContentOutlinePage;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Outline used for XML editors that have multiple pages with separate outlines:
+ * switches between them
+ * <p>
+ * See https://bugs.eclipse.org/bugs/show_bug.cgi?id=1917
+ * <p>
+ * Modeled after .org.eclipse.pde.internal.ui.editor.PDEMultiPageContentOutline
+ */
+public class XmlEditorMultiOutline extends Page implements IContentOutlinePage,
+        ISelectionChangedListener {
+    private boolean mDisposed;
+    private PageBook mPageBook;
+    private IContentOutlinePage mCurrentPage;
+    private IActionBars mActionBars;
+    private IContentOutlinePage mEmptyPage;
+    private List<ISelectionChangedListener> mListeners;
+    private ISelection mSelection;
+
+    public XmlEditorMultiOutline() {
+    }
+
+    @Override
+    public Control getControl() {
+        return mPageBook;
+    }
+
+    @Override
+    public void createControl(Composite parent) {
+        mPageBook = new PageBook(parent, SWT.NONE);
+    }
+
+    @Override
+    public void dispose() {
+        mDisposed = true;
+        mListeners = null;
+        if (mPageBook != null && !mPageBook.isDisposed()) {
+            mPageBook.dispose();
+            mPageBook = null;
+        }
+        if (mEmptyPage != null) {
+            mEmptyPage.dispose();
+            mEmptyPage = null;
+        }
+    }
+
+    public boolean isDisposed() {
+        return mDisposed;
+    }
+
+    @Override
+    public void makeContributions(IMenuManager menuManager, IToolBarManager toolBarManager,
+            IStatusLineManager statusLineManager) {
+    }
+
+    @Override
+    public void setActionBars(IActionBars actionBars) {
+        mActionBars = actionBars;
+        if (mCurrentPage != null) {
+            setPageActive(mCurrentPage);
+        }
+    }
+
+    @Override
+    public void setFocus() {
+        if (mCurrentPage != null) {
+            mCurrentPage.setFocus();
+        }
+    }
+
+    @Override
+    public void addSelectionChangedListener(ISelectionChangedListener listener) {
+        if (mListeners == null) {
+            mListeners = new ArrayList<ISelectionChangedListener>(2);
+        }
+        mListeners.add(listener);
+    }
+
+    @Override
+    public void removeSelectionChangedListener(ISelectionChangedListener listener) {
+        mListeners.remove(listener);
+    }
+
+    @Override
+    public ISelection getSelection() {
+        return mSelection;
+    }
+
+    @Override
+    public void selectionChanged(SelectionChangedEvent event) {
+        setSelection(event.getSelection());
+    }
+
+    public void setPageActive(IContentOutlinePage page) {
+        if (page == null) {
+            if (mEmptyPage == null) {
+                mEmptyPage = new EmptyPage();
+            }
+            page = mEmptyPage;
+        }
+        if (mCurrentPage != null) {
+            mCurrentPage.removeSelectionChangedListener(this);
+        }
+        page.addSelectionChangedListener(this);
+        mCurrentPage = page;
+        // Still initializing?
+        if (mPageBook == null) {
+            return;
+        }
+        Control control = page.getControl();
+        if (control == null || control.isDisposed()) {
+            if (page instanceof IPageBookViewPage) {
+                try {
+                    ((IPageBookViewPage) page).init(getSite());
+                } catch (PartInitException e) {
+                    AdtPlugin.log(e, null);
+                }
+            }
+            page.createControl(mPageBook);
+            page.setActionBars(mActionBars);
+            control = page.getControl();
+        }
+        mPageBook.showPage(control);
+    }
+
+    @Override
+    public void setSelection(ISelection selection) {
+        mSelection = selection;
+        if (mListeners != null) {
+            SelectionChangedEvent e = new SelectionChangedEvent(this, selection);
+            for (int i = 0; i < mListeners.size(); i++) {
+                mListeners.get(i).selectionChanged(e);
+            }
+        }
+    }
+
+    private static class EmptyPage implements IContentOutlinePage {
+        private Composite mControl;
+
+        private EmptyPage() {
+        }
+
+        @Override
+        public void createControl(Composite parent) {
+            mControl = new Composite(parent, SWT.NULL);
+        }
+
+        @Override
+        public void dispose() {
+        }
+
+        @Override
+        public Control getControl() {
+            return mControl;
+        }
+
+        @Override
+        public void setActionBars(IActionBars actionBars) {
+        }
+
+        @Override
+        public void setFocus() {
+        }
+
+        @Override
+        public void addSelectionChangedListener(ISelectionChangedListener listener) {
+        }
+
+        @Override
+        public ISelection getSelection() {
+            return StructuredSelection.EMPTY;
+        }
+
+        @Override
+        public void removeSelectionChangedListener(ISelectionChangedListener listener) {
+        }
+
+        @Override
+        public void setSelection(ISelection selection) {
+        }
+    }
+}