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/*******************************************************************************
* Copyright (c) 2001, 2004 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
* Jens Lukowski/Innoopract - initial renaming/restructuring
*
*******************************************************************************/
package org.eclipse.wst.sse.ui.preferences.ui;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.StringTokenizer;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.content.IContentType;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.preference.IPreferenceNode;
import org.eclipse.jface.preference.PreferenceDialog;
import org.eclipse.jface.preference.PreferenceManager;
import org.eclipse.jface.window.Window;
import org.eclipse.swt.custom.BusyIndicator;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.help.WorkbenchHelp;
import org.eclipse.wst.sse.core.IModelManager;
import org.eclipse.wst.sse.core.IStructuredModel;
import org.eclipse.wst.sse.core.StructuredModelManager;
import org.eclipse.wst.sse.core.util.DocumentInputStream;
import org.eclipse.wst.sse.ui.StructuredTextEditor;
import org.eclipse.wst.sse.ui.extension.ExtendedConfigurationBuilder;
import org.eclipse.wst.sse.ui.extension.IExtendedEditorAction;
import org.eclipse.wst.sse.ui.extension.IExtendedSimpleEditor;
import org.eclipse.wst.sse.ui.extensions.ConfigurationPointCalculator;
import org.eclipse.wst.sse.ui.internal.SSEUIPlugin;
import org.eclipse.wst.sse.ui.internal.editor.EditorPluginImageHelper;
import org.eclipse.wst.sse.ui.internal.editor.EditorPluginImages;
import org.eclipse.wst.sse.ui.internal.editor.IHelpContextIds;
/**
* This action displays the preferences relative to the current editor
*
* @author amywu
*/
public class EditStructuredTextEditorPreferencesAction extends Action implements IExtendedEditorAction {
private final String EXTENSION_ATTRIBUTE_PREFERENCE_IDS = "preferenceids"; //$NON-NLS-1$
private final String EXTENSION_TYPE_ID = "preferencepages"; //$NON-NLS-1$
private IExtendedSimpleEditor fEditor;
public EditStructuredTextEditorPreferencesAction() {
super(SSEUIPlugin.getResourceString("%EditPreferences.label"), EditorPluginImageHelper.getInstance().getImageDescriptor(EditorPluginImages.IMG_OBJ_PREFERENCES)); //$NON-NLS-1$
WorkbenchHelp.setHelp(this, IHelpContextIds.CONTMNU_PREFERENCES_HELPID);
}
/**
* Create the preference manager to use to display in the preference
* dialog
*
* @return a preference manager or null if there is no editor/preference
* page to display
*/
protected PreferenceManager buildPreferenceManager() {
if (getEditor() == null) {
return null;
}
// gather all preference page ids to display
String[] ids = buildPreferencePageIds();
// if no preference pages to display, return null
if (ids.length == 0) {
return null;
}
// create a new preference manager for this action/dialog
PreferenceManager manager = new PreferenceManager();
// get the workbench preference manager
PreferenceManager platformManager = PlatformUI.getWorkbench().getPreferenceManager();
for (int i = 0; i < ids.length; ++i) {
final IPreferenceNode targetNode = platformManager.find(ids[i]);
if (targetNode != null) {
manager.addToRoot(targetNode);
}
}
return manager;
}
/**
* Create a list of preference page ids of the preference pages to display
*
* @return String[]
*/
protected String[] buildPreferencePageIds() {
List prefIds = new ArrayList();
// figure out all preference page ids contributed
String[] pointIds = null;
Object editor = getEditor();
Class rootclass = getEditor().getClass();
if(editor instanceof StructuredTextEditor)
rootclass = StructuredTextEditor.class;
if (getEditor() instanceof IEditorPart) {
pointIds = ConfigurationPointCalculator.getConfigurationPoints((IEditorPart) getEditor(), getContentType(), ConfigurationPointCalculator.SOURCE, rootclass);
} else {
pointIds = ConfigurationPointCalculator.getConfigurationPoints(getEditor().getEditorPart(), getContentType(), ConfigurationPointCalculator.SOURCE, getEditor().getEditorPart().getClass());
}
ExtendedConfigurationBuilder builder = ExtendedConfigurationBuilder.getInstance();
// go through each configuration point and extract the preference page
// ids
// going through configuration points backwards so base fEditor
// preferences show up first
for (int i = pointIds.length - 1; i >= 0; --i) {
IConfigurationElement config = builder.getConfigurationElement(EXTENSION_TYPE_ID, pointIds[i]);
// get the list of preference page ids from the preferenceids
// attribute
if (config != null) {
String preferenceIdsString = config.getAttribute(EXTENSION_ATTRIBUTE_PREFERENCE_IDS);
// separate out the list of preference ids
if (preferenceIdsString != null) {
StringTokenizer tokenizer = new StringTokenizer(preferenceIdsString, ","); //$NON-NLS-1$
while (tokenizer.hasMoreTokens()) {
String prefId = tokenizer.nextToken().trim();
prefIds.add(prefId);
}
}
}
}
return (String[]) prefIds.toArray(new String[prefIds.size()]);
}
/**
* Return the content type of the current fEditor for this action
*
* @return content type identifier of the current fEditor
*/
private String getContentType() {
String contentType = null;
IStructuredModel model = getModelManager().getExistingModelForRead(getEditor().getDocument());
if (model != null) {
contentType = model.getContentTypeIdentifier();
model.releaseFromRead();
}
if (contentType == null) {
IContentType type = null;
try {
type = Platform.getContentTypeManager().findContentTypeFor(new DocumentInputStream(getEditor().getDocument()), getEditor().getEditorPart().getEditorInput().getName());
} catch (IOException e) {
// do nothing, shouldn't even be possible
}
if (type != null) {
contentType = type.getId();
}
}
return contentType;
}
private IExtendedSimpleEditor getEditor() {
return fEditor;
}
private IModelManager getModelManager() {
return StructuredModelManager.getInstance().getModelManager();
}
public boolean isVisible() {
return true;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jface.action.IAction#run()
*/
public void run() {
PreferenceManager manager = buildPreferenceManager();
if (manager != null) {
showPreferencePage(PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell(), manager);
}
}
public void setActiveExtendedEditor(IExtendedSimpleEditor targetEditor) {
fEditor = targetEditor;
}
/**
* Open the given preference page in a preference dialog.
*
* @param shell
* The shell to open on
* @param manager
* The preference manager to use/display in the preference
* dialog
* @return Returns <code>true</code> if the user ended the page by
* pressing OK.
*/
public boolean showPreferencePage(Shell shell, PreferenceManager manager) {
final PreferenceDialog dialog = new PreferenceDialog(shell, manager);
final boolean[] result = new boolean[]{false};
BusyIndicator.showWhile(shell.getDisplay(), new Runnable() {
public void run() {
dialog.create();
dialog.setMessage(SSEUIPlugin.getResourceString("%EditStructuredTextEditorPreferencesAction.0")); //$NON-NLS-1$
result[0] = (dialog.open() == Window.OK);
}
});
return result[0];
}
/*
* (non-Javadoc)
*
* @see org.eclipse.ui.texteditor.IUpdate#update()
*/
public void update() {
if (getEditor() == null) {
setEnabled(false);
} else {
setEnabled(true);
}
}
}
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