| /******************************************************************************* |
| * Copyright (c) 2000, 2008 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 org.eclipse.dltk.ui.preferences; |
| |
| import java.util.Map; |
| |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.dltk.core.DLTKCore; |
| import org.eclipse.dltk.internal.ui.wizards.buildpath.VariableBlock; |
| import org.eclipse.dltk.ui.DLTKUIPlugin; |
| import org.eclipse.jface.dialogs.Dialog; |
| import org.eclipse.jface.dialogs.MessageDialog; |
| import org.eclipse.jface.preference.PreferencePage; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.ui.IWorkbench; |
| import org.eclipse.ui.IWorkbenchPreferencePage; |
| |
| public class BuildpathVariablesPreferencePage extends PreferencePage implements |
| IWorkbenchPreferencePage { |
| |
| public static final String ID = DLTKUIPlugin.ID_BUILDPATH_VARIABLES_PREFERENCE_PAGE; |
| |
| public static final String DATA_SELECT_VARIABLE = "BuildpathVariablesPreferencePage.select_var"; //$NON-NLS-1$ |
| |
| private VariableBlock fVariableBlock; |
| private String fStoredSettings; |
| |
| /** |
| * Constructor for BuildpathVariablesPreferencePage |
| */ |
| public BuildpathVariablesPreferencePage() { |
| setPreferenceStore(DLTKUIPlugin.getDefault().getPreferenceStore()); |
| fVariableBlock = new VariableBlock(true, null); |
| fStoredSettings = null; |
| |
| // title only used when page is shown programatically |
| setTitle(PreferencesMessages.BuildpathVariablesPreferencePage_title); |
| setDescription(PreferencesMessages.BuildpathVariablesPreferencePage_description); |
| noDefaultAndApplyButton(); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see |
| * org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets |
| * .Composite) |
| */ |
| public void createControl(Composite parent) { |
| super.createControl(parent); |
| // PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(), |
| // IJavaHelpContextIds.CP_VARIABLES_PREFERENCE_PAGE); |
| } |
| |
| /* |
| * @see PreferencePage#createContents(org.eclipse.swt.widgets.Composite) |
| */ |
| protected Control createContents(Composite parent) { |
| Control result = fVariableBlock.createContents(parent); |
| Dialog.applyDialogFont(result); |
| return result; |
| } |
| |
| /* |
| * @see IWorkbenchPreferencePage#init(org.eclipse.ui.IWorkbench) |
| */ |
| public void init(IWorkbench workbench) { |
| } |
| |
| /* |
| * @see PreferencePage#performDefaults() |
| */ |
| protected void performDefaults() { |
| // not used (constructor calls noDefaultAndApplyButton()) |
| // fVariableBlock.performDefaults(); |
| super.performDefaults(); |
| } |
| |
| /* |
| * @see PreferencePage#performOk() |
| */ |
| public boolean performOk() { |
| DLTKUIPlugin.getDefault().savePluginPreferences(); |
| return fVariableBlock.performOk(); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jface.dialogs.IDialogPage#setVisible(boolean) |
| */ |
| public void setVisible(boolean visible) { |
| // check if the stored settings have changed |
| if (visible) { |
| if (fStoredSettings != null |
| && !fStoredSettings.equals(getCurrentSettings())) { |
| fVariableBlock.refresh(null); |
| } |
| } else { |
| if (fVariableBlock.hasChanges()) { |
| String title = PreferencesMessages.BuildpathVariablesPreferencePage_savechanges_title; |
| String message = PreferencesMessages.BuildpathVariablesPreferencePage_savechanges_message; |
| if (MessageDialog.openQuestion(getShell(), title, message)) { |
| performOk(); |
| } |
| fVariableBlock.setChanges(false); // forget |
| } |
| fStoredSettings = getCurrentSettings(); |
| } |
| super.setVisible(visible); |
| } |
| |
| private String getCurrentSettings() { |
| StringBuffer buf = new StringBuffer(); |
| String[] names = DLTKCore.getBuildpathVariableNames(); |
| for (int i = 0; i < names.length; i++) { |
| String curr = names[i]; |
| buf.append(curr).append('\0'); |
| IPath val = DLTKCore.getBuildpathVariable(curr); |
| if (val != null) { |
| buf.append(val.toString()); |
| } |
| buf.append('\0'); |
| } |
| return buf.toString(); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see |
| * org.eclipse.jface.preference.PreferencePage#applyData(java.lang.Object) |
| */ |
| public void applyData(Object data) { |
| if (data instanceof Map) { |
| Object id = ((Map) data).get(DATA_SELECT_VARIABLE); |
| if (id instanceof String) { |
| fVariableBlock.setSelection((String) id); |
| } |
| } |
| super.applyData(data); |
| } |
| |
| } |