com.github.sdbg.debug.ui.internal.view.BreakpointsView.java Source code

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Here is the source code for com.github.sdbg.debug.ui.internal.view.BreakpointsView.java

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/*
 * Copyright (c) 2012, the Dart project authors.
 * 
 * Licensed under the Eclipse Public License v1.0 (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/legal/epl-v10.html
 * 
 * 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.github.sdbg.debug.ui.internal.view;

import com.github.sdbg.debug.ui.internal.SDBGDebugUIPlugin;
import com.github.sdbg.debug.ui.internal.util.ReflectionUtils;
import com.github.sdbg.debug.ui.internal.util.SWTUtil;

import org.eclipse.debug.core.model.DebugElement;
import org.eclipse.debug.internal.ui.elements.adapters.DefaultBreakpointsViewInput;
import org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext;
import org.eclipse.debug.internal.ui.viewers.model.provisional.TreeModelViewer;
import org.eclipse.debug.internal.ui.views.variables.details.DetailPaneProxy;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.util.IPropertyChangeListener;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ListViewer;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.TreeSelection;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.ui.IActionBars;

/**
 * A debugger breakpoints view.
 */
@SuppressWarnings("restriction")
public class BreakpointsView extends org.eclipse.debug.internal.ui.views.breakpoints.BreakpointsView {
    public static final String VIEW_ID = "com.google.dart.tools.debug.breakpointsView";

    private RemoveAllBreakpointsAction removeAllBreakpointsAction;

    ListViewer breakpointsViewer;
    private TreeModelViewer treeViewer;
    private IPreferenceStore preferences;
    private IPropertyChangeListener propertyChangeListener = new IPropertyChangeListener() {
        @Override
        public void propertyChange(PropertyChangeEvent event) {
            doPropertyChange(event);
        }
    };

    public BreakpointsView() {

    }

    @Override
    public Viewer createViewer(Composite parent) {
        Viewer viewer = super.createViewer(parent);

        IActionBars actionBars = getViewSite().getActionBars();

        actionBars.getMenuManager().removeAll();

        return viewer;
    }

    @Override
    public void dispose() {
        if (removeAllBreakpointsAction != null) {
            removeAllBreakpointsAction.dispose();
        }
        if (propertyChangeListener != null) {
            getPreferences().removePropertyChangeListener(propertyChangeListener);
            propertyChangeListener = null;
        }
        if (propertyChangeListener != null) {
            getPreferences().removePropertyChangeListener(propertyChangeListener);
            propertyChangeListener = null;
        }

        super.dispose();
    }

    @Override
    public void refreshDetailPaneContents() {
        super.refreshDetailPaneContents();
        //&&&SWTUtil.setColors(getDetails(), getPreferences());
    }

    @Override
    protected void configureToolBar(IToolBarManager manager) {
        removeAllBreakpointsAction = new RemoveAllBreakpointsAction();

        manager.add(removeAllBreakpointsAction);
        manager.update(true);
    }

    @Override
    protected void contextActivated(ISelection selection) {
        IPresentationContext presentationContext = getTreeModelViewer().getPresentationContext();

        if (selection == null || selection.isEmpty()) {
            Object input = new DefaultBreakpointsViewInput(presentationContext);
            super.contextActivated(new StructuredSelection(input));
        } else {
            if (selection instanceof TreeSelection) {
                if (((TreeSelection) selection).getFirstElement() instanceof DebugElement) {
                    super.contextActivated(
                            new StructuredSelection(new DefaultBreakpointsViewInput(presentationContext)));
                } else {
                    super.contextActivated(selection);
                }
            } else {
                super.contextActivated(selection);
            }
        }
        if (isAvailable() && isVisible()) {
            updateAction("ContentAssist"); //$NON-NLS-1$
        }
    }

    @Override
    protected TreeModelViewer createTreeViewer(Composite parent) {
        preferences = SDBGDebugUIPlugin.getDefault().getCombinedPreferenceStore();
        final TreeModelViewer treeViewer = super.createTreeViewer(parent);
        this.treeViewer = treeViewer;
        treeViewer.getTree().setBackgroundMode(SWT.INHERIT_FORCE);
        treeViewer.getTree().addListener(SWT.EraseItem, new Listener() {
            @Override
            public void handleEvent(Event event) {
                SWTUtil.eraseSelection(event, treeViewer.getTree(), getPreferences());
            }
        });
        SWTUtil.bindJFaceResourcesFontToControl(treeViewer.getTree());
        getPreferences().addPropertyChangeListener(propertyChangeListener);
        updateColors();
        return treeViewer;
    }

    @Override
    protected void setViewerInput(Object context) {
        if (context != null && context instanceof DebugElement) {
            return;
        }
        super.setViewerInput(context);
    }

    protected void updateColors() {
        //&&&SWTUtil.setColors(treeViewer.getTree(), getPreferences());
    }

    private void doPropertyChange(PropertyChangeEvent event) {
        updateColors();
        treeViewer.refresh(false);
    }

    private Composite getDetails() {
        // Warning: fragile code!
        DetailPaneProxy detailProxy = ReflectionUtils.getFieldObject(this, "fDetailPane");
        Composite text = ReflectionUtils.getFieldObject(detailProxy, "fCurrentControl");
        return text;
    }

    private IPreferenceStore getPreferences() {
        return preferences;
    }

}