/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Eclipse Public License, Version 1.0 (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/org/documents/epl-v10.php
*
* 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.android.ide.eclipse.adt.ui;
import com.android.ide.eclipse.adt.refactorings.extractstring.ExtractStringRefactoring;
import com.android.ide.eclipse.adt.refactorings.extractstring.ExtractStringWizard;
import com.android.ide.eclipse.common.resources.IResourceRepository;
import com.android.ide.eclipse.common.resources.ResourceItem;
import com.android.ide.eclipse.common.resources.ResourceType;
import org.eclipse.core.resources.IProject;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.ltk.ui.refactoring.RefactoringWizard;
import org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.dialogs.AbstractElementListSelectionDialog;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* A dialog to let the user select a resource based on a resource type.
*/
public class ResourceChooser extends AbstractElementListSelectionDialog {
private Pattern mProjectResourcePattern;
private ResourceType mResourceType;
private IResourceRepository mProjectResources;
private final static boolean SHOW_SYSTEM_RESOURCE = false; // TODO re-enable at some point
private Pattern mSystemResourcePattern;
private IResourceRepository mSystemResources;
private Button mProjectButton;
private Button mSystemButton;
private String mCurrentResource;
private final IProject mProject;
/**
* Creates a Resource Chooser dialog.
* @param project Project being worked on
* @param type The type of the resource to choose
* @param projectResources The repository for the project
* @param systemResources The System resource repository
* @param parent the parent shell
*/
public ResourceChooser(IProject project, ResourceType type,
IResourceRepository projectResources,
IResourceRepository systemResources,
Shell parent) {
super(parent, new ResourceLabelProvider());
mProject = project;
mResourceType = type;
mProjectResources = projectResources;
mProjectResourcePattern = Pattern.compile(
"@" + mResourceType.getName() + "/(.+)"); //$NON-NLS-1$ //$NON-NLS-2$
if (SHOW_SYSTEM_RESOURCE) {
mSystemResources = systemResources;
mSystemResourcePattern = Pattern.compile(
"@android:" + mResourceType.getName() + "/(.+)"); //$NON-NLS-1$ //$NON-NLS-2$
}
setTitle("Resource Chooser");
setMessage(String.format("Choose a %1$s resource",
mResourceType.getDisplayName().toLowerCase()));
}
public void setCurrentResource(String resource) {
mCurrentResource = resource;
}
public String getCurrentResource() {
return mCurrentResource;
}
@Override
protected void computeResult() {
Object[] elements = getSelectedElements();
if (elements.length == 1 && elements[0] instanceof ResourceItem) {
ResourceItem item = (ResourceItem)elements[0];
mCurrentResource = mResourceType.getXmlString(item,
SHOW_SYSTEM_RESOURCE && mSystemButton.getSelection());
}
}
@Override
protected Control createDialogArea(Composite parent) {
Composite top = (Composite)super.createDialogArea(parent);
createMessageArea(top);
createButtons(top);
createFilterText(top);
createFilteredList(top);
// create the "New Resource" button
createNewResButtons(top);
setupResourceList();
selectResourceString(mCurrentResource);
return top;
}
/**
* Creates the radio button to switch between project and system resources.
* @param top the parent composite
*/
private void createButtons(Composite top) {
if (!SHOW_SYSTEM_RESOURCE) {
return;
}
mProjectButton = new Button(top, SWT.RADIO);
mProjectButton.setText("Project Resources");
mProjectButton.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
super.widgetSelected(e);
if (mProjectButton.getSelection()) {
setListElements(mProjectResources.getResources(mResourceType));
}
}
});
mSystemButton = new Button(top, SWT.RADIO);
mSystemButton.setText("System Resources");
mSystemButton.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
super.widgetSelected(e);
if (mProjectButton.getSelection()) {
setListElements(mSystemResources.getResources(mResourceType));
}
}
});
}
/**
* Creates the "New Resource" button.
* @param top the parent composite
*/
private void createNewResButtons(Composite top) {
Button newResButton = new Button(top, SWT.NONE);
String title = String.format("New %1$s...", mResourceType.getDisplayName());
newResButton.setText(title);
// We only support adding new strings right now
newResButton.setEnabled(mResourceType == ResourceType.STRING);
newResButton.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
super.widgetSelected(e);
if (mResourceType == ResourceType.STRING) {
createNewString();
}
}
});
}
private void createNewString() {
ExtractStringRefactoring ref = new ExtractStringRefactoring(
mProject, true /*enforceNew*/);
RefactoringWizard wizard = new ExtractStringWizard(ref, mProject);
RefactoringWizardOpenOperation op = new RefactoringWizardOpenOperation(wizard);
try {
IWorkbench w = PlatformUI.getWorkbench();
if (op.run(w.getDisplay().getActiveShell(), wizard.getDefaultPageTitle()) ==
IDialogConstants.OK_ID) {
// Recompute the "current resource" to select the new id
setupResourceList();
// select it if possible
selectItemName(ref.getXmlStringId());
}
} catch (InterruptedException ex) {
// Interrupted. Pass.
}
}
/**
* @return The repository currently selected.
*/
private IResourceRepository getCurrentRepository() {
IResourceRepository repo = mProjectResources;
if (SHOW_SYSTEM_RESOURCE && mSystemButton.getSelection()) {
repo = mSystemResources;
}
return repo;
}
/**
* Setups the current list.
*/
private void setupResourceList() {
IResourceRepository repo = getCurrentRepository();
setListElements(repo.getResources(mResourceType));
}
/**
* Select an item by its name, if possible.
*/
private void selectItemName(String itemName) {
if (itemName == null) {
return;
}
IResourceRepository repo = getCurrentRepository();
ResourceItem[] items = repo.getResources(mResourceType);
for (ResourceItem item : items) {
if (itemName.equals(item.getName())) {
setSelection(new Object[] { item });
break;
}
}
}
/**
* Select an item by its full resource string.
* This also selects between project and system repository based on the resource string.
*/
private void selectResourceString(String resourceString) {
boolean isSystem = false;
String itemName = null;
// Is this a system resource?
// If not a system resource or if they are not available, this will be a project res.
if (SHOW_SYSTEM_RESOURCE) {
Matcher m = mSystemResourcePattern.matcher(resourceString);
if (m.matches()) {
itemName = m.group(1);
isSystem = true;
}
}
if (!isSystem && itemName == null) {
// Try to match project resource name
Matcher m = mProjectResourcePattern.matcher(resourceString);
if (m.matches()) {
itemName = m.group(1);
}
}
// Update the repository selection
if (SHOW_SYSTEM_RESOURCE) {
mProjectButton.setSelection(!isSystem);
mSystemButton.setSelection(isSystem);
}
// Update the list
setupResourceList();
// If we have a selection name, select it
if (itemName != null) {
selectItemName(itemName);
}
}
}
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