| /******************************************************************************* |
| * Copyright (c) 2001, 2006 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.wst.internet.cache.internal.preferences; |
| |
| import java.util.Arrays; |
| |
| import org.eclipse.jface.dialogs.MessageDialog; |
| import org.eclipse.jface.preference.PreferencePage; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.events.SelectionAdapter; |
| import org.eclipse.swt.events.SelectionEvent; |
| import org.eclipse.swt.events.SelectionListener; |
| import org.eclipse.swt.layout.GridData; |
| import org.eclipse.swt.layout.GridLayout; |
| import org.eclipse.swt.widgets.Button; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Label; |
| import org.eclipse.swt.widgets.List; |
| import org.eclipse.ui.IWorkbench; |
| import org.eclipse.ui.IWorkbenchPreferencePage; |
| import org.eclipse.ui.PlatformUI; |
| import org.eclipse.wst.internet.cache.internal.Cache; |
| import org.eclipse.wst.internet.cache.internal.CacheMessages; |
| import org.eclipse.wst.internet.cache.internal.CachePlugin; |
| |
| /** |
| * This class represents a preference page that is contributed to the |
| * Preferences dialog. This page contains options for the cache. The cache can |
| * be disabled, the list of entries in the cache can be viewed, and individual |
| * entries or the entire cache can be deleted. |
| */ |
| |
| public class CachePreferencePage extends PreferencePage implements |
| IWorkbenchPreferencePage |
| { |
| protected Button clearButton; |
| |
| protected Button deleteButton; |
| |
| protected Button enabledButton; |
| |
| protected Button disagreedLicensesButton; |
| |
| protected List entries; |
| |
| protected Composite composite = null; |
| |
| /** |
| * @see org.eclipse.jface.dialogs.IDialogPage#dispose() |
| */ |
| public void dispose() |
| { |
| if (composite != null) |
| { |
| composite.dispose(); |
| } |
| super.dispose(); |
| } |
| |
| /** |
| * Constructor. |
| */ |
| public CachePreferencePage() |
| { |
| setPreferenceStore(CachePlugin.getDefault().getPreferenceStore()); |
| } |
| |
| /** |
| * @see org.eclipse.ui.IWorkbenchPreferencePage#init(org.eclipse.ui.IWorkbench) |
| */ |
| public void init(IWorkbench workbench) |
| { |
| } |
| |
| /** |
| * @see org.eclipse.jface.preference.PreferencePage#createContents(org.eclipse.swt.widgets.Composite) |
| */ |
| protected Control createContents(Composite parent) |
| { |
| noDefaultAndApplyButton(); |
| |
| composite = new Composite(parent, SWT.NULL); |
| GridLayout layout = new GridLayout(); |
| layout.numColumns = 2; |
| layout.horizontalSpacing = convertHorizontalDLUsToPixels(4); |
| layout.verticalSpacing = convertVerticalDLUsToPixels(3); |
| layout.marginWidth = 0; |
| layout.marginHeight = 0; |
| composite.setLayout(layout); |
| GridData gd = new GridData(GridData.FILL_HORIZONTAL | GridData.VERTICAL_ALIGN_FILL); |
| composite.setLayoutData(gd); |
| |
| Label aboutLabel = new Label(composite, SWT.WRAP); |
| aboutLabel.setText(CacheMessages._UI_PREF_CACHE_ABOUT); |
| GridData gridData = new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING); |
| gridData.horizontalSpan = 2; |
| aboutLabel.setLayoutData(gridData); |
| new Label(composite, SWT.None); |
| try |
| { |
| // Created the disable cache option. |
| enabledButton = new Button(composite, SWT.CHECK | SWT.LEFT); |
| gridData = new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING); |
| gridData.horizontalSpan = 2; |
| enabledButton.setLayoutData(gridData); |
| enabledButton.setText(CacheMessages._UI_PREF_CACHE_CACHE_OPTION); |
| enabledButton.setSelection(!CachePlugin.getDefault().getPreferenceStore() |
| .getBoolean(PreferenceConstants.CACHE_ENABLED)); |
| enabledButton.addSelectionListener(new SelectionListener() |
| { |
| |
| public void widgetDefaultSelected(SelectionEvent e) |
| { |
| widgetSelected(e); |
| |
| } |
| |
| public void widgetSelected(SelectionEvent e) |
| { |
| boolean disabled = enabledButton.getSelection(); |
| CachePlugin.getDefault().setCacheEnabled(!disabled); |
| } |
| |
| }); |
| |
| disagreedLicensesButton = new Button(composite, SWT.CHECK | SWT.LEFT); |
| gridData = new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING); |
| gridData.horizontalSpan = 2; |
| disagreedLicensesButton.setLayoutData(gridData); |
| disagreedLicensesButton.setText(CacheMessages._UI_PREF_PROMPT_FOR_DISAGREED_LICENSES); |
| disagreedLicensesButton.setSelection(CachePlugin.getDefault().getPreferenceStore() |
| .getBoolean(PreferenceConstants.PROMPT_DISAGREED_LICENSES)); |
| disagreedLicensesButton.addSelectionListener(new SelectionListener() |
| { |
| |
| public void widgetDefaultSelected(SelectionEvent e) |
| { |
| widgetSelected(e); |
| |
| } |
| |
| public void widgetSelected(SelectionEvent e) |
| { |
| boolean prompt = disagreedLicensesButton.getSelection(); |
| CachePlugin.getDefault().setPromptDisagreedLicenses(prompt); |
| } |
| |
| }); |
| |
| // Create the entities group. |
| Label entriesLabel = new Label(composite, SWT.WRAP); |
| entriesLabel.setText(CacheMessages._UI_PREF_CACHE_ENTRIES_TITLE); |
| gridData = new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING); |
| gridData.horizontalSpan = 2; |
| entriesLabel.setLayoutData(gridData); |
| |
| entries = new List(composite, SWT.MULTI | SWT.BORDER | SWT.V_SCROLL); |
| PlatformUI.getWorkbench().getHelpSystem().setHelp(entries, |
| ContextIds.PREF_ENTRIES); |
| String[] cacheEntries = Cache.getInstance().getCachedURIs(); |
| Arrays.sort(cacheEntries); |
| entries.setItems(cacheEntries); |
| gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL |
| | GridData.VERTICAL_ALIGN_FILL); |
| gridData.grabExcessHorizontalSpace = true; |
| gridData.grabExcessVerticalSpace = true; |
| entries.setLayoutData(gridData); |
| entries.addSelectionListener(new SelectionAdapter() |
| { |
| public void widgetSelected(SelectionEvent event) |
| { |
| setPreferenceWidgets(); |
| } |
| }); |
| |
| Composite buttonComposite = new Composite(composite, SWT.NULL); |
| GridLayout gridLayout = new GridLayout(); |
| gridLayout.horizontalSpacing = 0; |
| gridLayout.verticalSpacing = convertVerticalDLUsToPixels(3); |
| gridLayout.marginWidth = 0; |
| gridLayout.marginHeight = 0; |
| gridLayout.numColumns = 1; |
| buttonComposite.setLayout(gridLayout); |
| gridData = new GridData(GridData.HORIZONTAL_ALIGN_END | GridData.VERTICAL_ALIGN_FILL | SWT.TOP); |
| buttonComposite.setLayoutData(gridData); |
| // Create the Delete button |
| deleteButton = new Button(buttonComposite, SWT.PUSH); |
| deleteButton.setText(CacheMessages._UI_BUTTON_DELETE_ENTRY); |
| gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_BEGINNING); |
| gridData.grabExcessHorizontalSpace = true; |
| deleteButton.setLayoutData(gridData); |
| deleteButton.addSelectionListener(new SelectionAdapter() |
| { |
| public void widgetSelected(SelectionEvent event) |
| { |
| if (MessageDialog |
| .openConfirm( |
| Display.getDefault().getActiveShell(), |
| CacheMessages._UI_CONFIRM_DELETE_CACHE_ENTRY_DIALOG_TITLE, |
| CacheMessages._UI_CONFIRM_DELETE_CACHE_ENTRY_DIALOG_MESSAGE)) |
| { |
| String[] selectedEntries = entries.getSelection(); |
| int numSelectedEntries = selectedEntries.length; |
| |
| Cache cache = Cache.getInstance(); |
| for (int i = 0; i < numSelectedEntries; i++) |
| { |
| cache.deleteEntry(selectedEntries[i]); |
| } |
| String[] cacheEntries = cache.getCachedURIs(); |
| Arrays.sort(cacheEntries); |
| entries.setItems(cacheEntries); |
| setPreferenceWidgets(); |
| } |
| } |
| }); |
| |
| // Create the Clear Cache button |
| clearButton = new Button(buttonComposite, SWT.PUSH); |
| clearButton.setText(CacheMessages._UI_BUTTON_CLEAR_CACHE); |
| gridData = new GridData(GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_BEGINNING); |
| gridData.grabExcessHorizontalSpace = true; |
| clearButton.setLayoutData(gridData); |
| clearButton.addSelectionListener(new SelectionAdapter() |
| { |
| public void widgetSelected(SelectionEvent event) |
| { |
| if (MessageDialog.openConfirm(Display.getDefault().getActiveShell(), |
| CacheMessages._UI_CONFIRM_CLEAR_CACHE_DIALOG_TITLE, |
| CacheMessages._UI_CONFIRM_CLEAR_CACHE_DIALOG_MESSAGE)) |
| { |
| Cache cache = Cache.getInstance(); |
| cache.clear(); |
| String[] cacheEntries = cache.getCachedURIs(); |
| Arrays.sort(cacheEntries); |
| entries.setItems(cacheEntries); |
| setPreferenceWidgets(); |
| } |
| } |
| }); |
| |
| } catch (Exception e) |
| { |
| //TODO: Log error |
| e.printStackTrace(); |
| } |
| setPreferenceWidgets(); |
| applyDialogFont(composite); |
| |
| return composite; |
| } |
| |
| /** |
| * Set the preference page widgets. There are a few rules. 1. If disabled, all |
| * of the widgets are diabled except for the disabled check box. 2. If |
| * enabled, all widgets are enabled except a. The delete button is enabled |
| * only if there is a selection in the list. b. The clear button is enabled |
| * only if there are items in the list. |
| */ |
| public void setPreferenceWidgets() |
| { |
| if (composite != null && composite.getEnabled()) |
| { |
| if (entries.getSelectionCount() > 0) |
| { |
| deleteButton.setEnabled(true); |
| } |
| else |
| { |
| deleteButton.setEnabled(false); |
| } |
| if (entries.getItemCount() > 0) |
| { |
| clearButton.setEnabled(true); |
| } |
| else |
| { |
| clearButton.setEnabled(false); |
| } |
| |
| } |
| } |
| |
| /* |
| * @see PreferencePage#createControl(Composite) |
| */ |
| public void createControl(Composite parent) |
| { |
| super.createControl(parent); |
| PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(), ContextIds.PREF); //$NON-NLS-1$ |
| } |
| } |
