Java tutorial
/******************************************************************************* * Copyright (c) 2009, 2010 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - initial API and implementation *******************************************************************************/ package com.aptana.ruby.internal.debug.ui.breakpoints; import java.util.HashSet; import java.util.Set; import org.eclipse.core.runtime.CoreException; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.ListenerList; import org.eclipse.debug.internal.ui.SWTFactory; import org.eclipse.debug.ui.IDetailPane; import org.eclipse.jface.action.IStatusLineManager; import org.eclipse.jface.viewers.ISelectionProvider; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Display; import org.eclipse.ui.IEditorActionBarContributor; import org.eclipse.ui.IEditorPart; import org.eclipse.ui.IPropertyListener; import org.eclipse.ui.IViewPart; import org.eclipse.ui.IViewSite; import org.eclipse.ui.IWorkbenchPage; import org.eclipse.ui.IWorkbenchPart; import org.eclipse.ui.IWorkbenchPartConstants; import org.eclipse.ui.IWorkbenchPartSite; import org.eclipse.ui.part.EditorActionBarContributor; import com.aptana.core.logging.IdeLog; import com.aptana.ruby.debug.ui.RubyDebugUIPlugin; /** * Common detail pane function. * * @since 1.0 */ @SuppressWarnings("restriction") public abstract class AbstractDetailPane implements IDetailPane { private String fName; private String fDescription; private String fId; private AbstractRubyBreakpointEditor fEditor; private Set<Integer> fAutoSaveProperties = new HashSet<Integer>(); private IWorkbenchPartSite fSite; // property listeners private ListenerList fListeners = new ListenerList(); private Composite fEditorParent; /** * Constructs a detail pane. * * @param name * detail pane name * @param description * detail pane description * @param id * detail pane ID */ public AbstractDetailPane(String name, String description, String id) { fName = name; fDescription = description; fId = id; } /* * (non-Javadoc) * @see org.eclipse.debug.ui.IDetailPane3#addPropertyListener(org.eclipse.ui.IPropertyListener) */ public void addPropertyListener(IPropertyListener listener) { fListeners.add(listener); } /* * (non-Javadoc) * @see org.eclipse.debug.ui.IDetailPane3#removePropertyListener(org.eclipse.ui.IPropertyListener) */ public void removePropertyListener(IPropertyListener listener) { fListeners.remove(listener); } /* * (non-Javadoc) * @see org.eclipse.debug.ui.IDetailPane2#getSelectionProvider() */ public ISelectionProvider getSelectionProvider() { return null; } /** * Fires a property change to all listeners. * * @param property * the property */ protected void firePropertyChange(int property) { Object[] listeners = fListeners.getListeners(); for (int i = 0; i < listeners.length; i++) { ((IPropertyListener) listeners[i]).propertyChanged(this, property); } } /* * (non-Javadoc) * @see org.eclipse.debug.ui.IDetailPane#init(org.eclipse.ui.IWorkbenchPartSite) */ public void init(IWorkbenchPartSite partSite) { fSite = partSite; } public String getID() { return fId; } public String getName() { return fName; } public String getDescription() { return fDescription; } /* * (non-Javadoc) * @see org.eclipse.debug.ui.IDetailPane#dispose() */ public void dispose() { fEditor = null; fSite = null; fListeners.clear(); fAutoSaveProperties.clear(); fEditorParent.dispose(); } /** * Adds the given auto save properties to this detail pain. Whenever one of these properties changes, the detail * pane editor is immediately saved. * * @param autosave */ protected void addAutosaveProperties(int[] autosave) { for (int i = 0; i < autosave.length; i++) { fAutoSaveProperties.add(new Integer(autosave[i])); } } /* * (non-Javadoc) * @see org.eclipse.debug.ui.IDetailPane#createControl(org.eclipse.swt.widgets.Composite) */ public Control createControl(Composite parent) { fEditorParent = SWTFactory.createComposite(parent, 1, 1, GridData.FILL_BOTH); fEditor = createEditor(fEditorParent); fEditor.setMnemonics(false); fEditor.addPropertyListener(new IPropertyListener() { public void propertyChanged(Object source, int propId) { if (fAutoSaveProperties.contains(new Integer(propId))) { try { fEditor.doSave(); return; } catch (CoreException e) { } } firePropertyChange(IWorkbenchPartConstants.PROP_DIRTY); } }); return fEditor.createControl(fEditorParent); } /** * Creates the detail pane specific editor. * * @param parent * parent composite * @return editor */ protected abstract AbstractRubyBreakpointEditor createEditor(Composite parent); /* * (non-Javadoc) * @see org.eclipse.ui.ISaveablePart#doSaveAs() */ public void doSaveAs() { // do nothing } /* * (non-Javadoc) * @see org.eclipse.ui.ISaveablePart#isSaveAsAllowed() */ public boolean isSaveAsAllowed() { return false; } /* * (non-Javadoc) * @see org.eclipse.ui.ISaveablePart#isSaveOnCloseNeeded() */ public boolean isSaveOnCloseNeeded() { return isDirty() && fEditor.getStatus().isOK(); } /* * (non-Javadoc) * @see org.eclipse.debug.ui.IDetailPane#setFocus() */ public boolean setFocus() { return false; } /* * (non-Javadoc) * @see org.eclipse.ui.ISaveablePart#doSave(org.eclipse.core.runtime.IProgressMonitor) */ public void doSave(IProgressMonitor monitor) { IStatusLineManager statusLine = getStatusLine(); if (statusLine != null) { statusLine.setErrorMessage(null); } try { fEditor.doSave(); } catch (CoreException e) { if (statusLine != null) { statusLine.setErrorMessage(e.getMessage()); Display.getCurrent().beep(); } else { IdeLog.logError(RubyDebugUIPlugin.getDefault(), e); } } } private IStatusLineManager getStatusLine() { // we want to show messages globally hence we // have to go through the active part if (fSite instanceof IViewSite) { IViewSite site = (IViewSite) fSite; IWorkbenchPage page = site.getPage(); IWorkbenchPart activePart = page.getActivePart(); if (activePart instanceof IViewPart) { IViewPart activeViewPart = (IViewPart) activePart; IViewSite activeViewSite = activeViewPart.getViewSite(); return activeViewSite.getActionBars().getStatusLineManager(); } if (activePart instanceof IEditorPart) { IEditorPart activeEditorPart = (IEditorPart) activePart; IEditorActionBarContributor contributor = activeEditorPart.getEditorSite() .getActionBarContributor(); if (contributor instanceof EditorActionBarContributor) return ((EditorActionBarContributor) contributor).getActionBars().getStatusLineManager(); } // no active part return site.getActionBars().getStatusLineManager(); } return null; } /* * (non-Javadoc) * @see org.eclipse.ui.ISaveablePart#isDirty() */ public boolean isDirty() { return fEditor.isDirty(); } /** * Returns the editor associated with this detail pane. * * @return editor */ protected AbstractRubyBreakpointEditor getEditor() { return fEditor; } /* * (non-Javadoc) * @see org.eclipse.debug.ui.IDetailPane#display(org.eclipse.jface.viewers.IStructuredSelection) */ public void display(IStructuredSelection selection) { // clear status line IStatusLineManager statusLine = getStatusLine(); if (statusLine != null) { statusLine.setErrorMessage(null); } AbstractRubyBreakpointEditor editor = getEditor(); Object input = null; if (selection != null && selection.size() == 1) { input = selection.getFirstElement(); // update even if the same in case attributes have changed } try { editor.setInput(input); } catch (CoreException e) { IdeLog.logError(RubyDebugUIPlugin.getDefault(), e); } } }