/*
* Copyright (c) 2012, the Dart project authors.
*
* Licensed under the Eclipse Public License v1.0 (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/legal/epl-v10.html
*
* 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.google.dart.tools.search.internal.ui;
import com.google.dart.tools.search.internal.ui.util.ExceptionHandler;
import com.google.dart.tools.search.internal.ui.util.ExtendedDialogWindow;
import com.google.dart.tools.search.ui.IReplacePage;
import com.google.dart.tools.search.ui.ISearchPage;
import com.google.dart.tools.search.ui.ISearchPageContainer;
import com.google.dart.tools.search.ui.ISearchPageScoreComputer;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.ISafeRunnable;
import org.eclipse.core.runtime.ListenerList;
import org.eclipse.core.runtime.SafeRunner;
import org.eclipse.jface.action.LegacyActionTools;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.IDialogSettings;
import org.eclipse.jface.dialogs.IPageChangeProvider;
import org.eclipse.jface.dialogs.IPageChangedListener;
import org.eclipse.jface.dialogs.PageChangedEvent;
import org.eclipse.jface.operation.IRunnableContext;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.util.SafeRunnable;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.CheckStateChangedEvent;
import org.eclipse.jface.viewers.CheckboxTableViewer;
import org.eclipse.jface.viewers.ICheckStateListener;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.window.Window;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.BusyIndicator;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
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.Layout;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.TabFolder;
import org.eclipse.swt.widgets.TabItem;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IWorkbenchPage;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.IWorkingSet;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.activities.WorkbenchActivityHelper;
import org.eclipse.ui.dialogs.ListSelectionDialog;
import org.eclipse.ui.part.MultiPageEditorPart;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
public class SearchDialog extends ExtendedDialogWindow implements ISearchPageContainer,
IPageChangeProvider {
private class TabFolderLayout extends Layout {
@Override
protected Point computeSize(Composite composite, int wHint, int hHint, boolean flushCache) {
if (wHint != SWT.DEFAULT && hHint != SWT.DEFAULT) {
return new Point(wHint, hHint);
}
int x = 0;
int y = 0;
Control[] children = composite.getChildren();
for (int i = 0; i < children.length; i++) {
Point size = children[i].computeSize(SWT.DEFAULT, SWT.DEFAULT, flushCache);
x = Math.max(x, size.x);
y = Math.max(y, size.y);
}
Point minSize = getMinSize();
x = Math.max(x, minSize.x);
y = Math.max(y, minSize.y);
if (wHint != SWT.DEFAULT) {
x = wHint;
}
if (hHint != SWT.DEFAULT) {
y = hHint;
}
return new Point(x, y);
}
@Override
protected void layout(Composite composite, boolean flushCache) {
Rectangle rect = composite.getClientArea();
Control[] children = composite.getChildren();
for (int i = 0; i < children.length; i++) {
children[i].setBounds(rect);
}
}
}
private static final int SEARCH_ID = IDialogConstants.CLIENT_ID + 1;
private static final int REPLACE_ID = SEARCH_ID + 1;
private static final int CUSTOMIZE_ID = REPLACE_ID + 1;
public static String evaluateEnclosingProject(IAdaptable adaptable) {
IProject project = (IProject) adaptable.getAdapter(IProject.class);
if (project == null) {
IResource resource = (IResource) adaptable.getAdapter(IResource.class);
if (resource != null) {
project = resource.getProject();
}
}
if (project != null && project.isAccessible()) {
return project.getName();
}
return null;
}
public static String[] evaluateEnclosingProject(ISelection selection, IEditorPart activeEditor) {
// always use the editor if active
if (activeEditor != null) {
String name = evaluateEnclosingProject(activeEditor.getEditorInput());
if (name != null) {
return new String[] {name};
}
} else if (selection instanceof IStructuredSelection) {
HashSet<String> res = new HashSet<String>();
for (@SuppressWarnings("rawtypes")
Iterator iter = ((IStructuredSelection) selection).iterator(); iter.hasNext();) {
Object curr = iter.next();
if (curr instanceof IWorkingSet) {
IWorkingSet workingSet = (IWorkingSet) curr;
if (workingSet.isAggregateWorkingSet() && workingSet.isEmpty()) {
IProject[] projects = ResourcesPlugin.getWorkspace().getRoot().getProjects();
for (int i = 0; i < projects.length; i++) {
IProject proj = projects[i];
if (proj.isOpen()) {
res.add(proj.getName());
}
}
} else {
IAdaptable[] elements = workingSet.getElements();
for (int i = 0; i < elements.length; i++) {
String name = evaluateEnclosingProject(elements[i]);
if (name != null) {
res.add(name);
}
}
}
} else if (curr instanceof IAdaptable) {
String name = evaluateEnclosingProject((IAdaptable) curr);
if (name != null) {
res.add(name);
}
}
}
if (!res.isEmpty()) {
return res.toArray(new String[res.size()]);
}
}
return new String[0];
}
private ISearchPage fCurrentPage;
private String fInitialPageId;
private int fCurrentIndex;
private List<SearchPageDescriptor> fDescriptors;
private Point fMinSize;
private ScopePart[] fScopeParts;
private boolean fLastEnableState;
private Button fReplaceButton;
private ListenerList fPageChangeListeners;
private final IWorkbenchWindow fWorkbenchWindow;
private final ISelection fCurrentSelection;
private final String[] fCurrentEnclosingProject;
public SearchDialog(IWorkbenchWindow window, String pageId) {
super(window.getShell());
fWorkbenchWindow = window;
fCurrentSelection = window.getSelectionService().getSelection();
fCurrentEnclosingProject = evaluateEnclosingProject(fCurrentSelection, getActiveEditor());
fDescriptors = filterByActivities(SearchPlugin.getDefault().getEnabledSearchPageDescriptors(
pageId));
fInitialPageId = pageId;
fPageChangeListeners = null;
setUseEmbeddedProgressMonitorPart(false);
}
@Override
public void addPageChangedListener(IPageChangedListener listener) {
if (fPageChangeListeners == null) {
fPageChangeListeners = new ListenerList();
}
fPageChangeListeners.add(listener);
}
@Override
public boolean close() {
for (int i = 0; i < fDescriptors.size(); i++) {
SearchPageDescriptor desc = fDescriptors.get(i);
desc.dispose();
}
return super.close();
}
/*
* Overrides method from Window
*/
@Override
public void create() {
super.create();
if (fCurrentPage != null) {
fCurrentPage.setVisible(true);
}
}
public IEditorPart getActiveEditor() {
IWorkbenchPage activePage = fWorkbenchWindow.getActivePage();
if (activePage != null) {
IEditorPart activeEditor = activePage.getActiveEditor();
IWorkbenchPart activePart = activePage.getActivePart();
if (activeEditor == activePart) {
return activeEditor;
}
}
return null;
}
/*
* @see com.google.dart.tools.search.ui.ISearchPageContainer#getActiveEditorInput()
*/
@Override
public IEditorInput getActiveEditorInput() {
IEditorPart editor = getActiveEditor();
if (editor == null) {
return null;
}
// Handle multi-page editors
if (editor instanceof MultiPageEditorPart) {
Object page = ((MultiPageEditorPart) editor).getSelectedPage();
if (page instanceof IEditorPart) {
editor = (IEditorPart) page;
} else {
return null;
}
}
return editor.getEditorInput();
}
public String[] getEnclosingProjectNames() {
return fCurrentEnclosingProject;
}
//---- Page Handling -------------------------------------------------------
/*
* Implements method from ISearchPageContainer
*/
@Override
public IRunnableContext getRunnableContext() {
return this;
}
@Override
public Object getSelectedPage() {
return fCurrentPage;
}
@Override
public String[] getSelectedProjectNames() {
if (getSelectedScope() == SELECTED_PROJECTS_SCOPE) {
return getEnclosingProjectNames();
}
return null;
}
/*
* Implements method from ISearchPageContainer
*/
@Override
public int getSelectedScope() {
if (fScopeParts[fCurrentIndex] == null) {
// safe code - should not happen
return ISearchPageContainer.WORKSPACE_SCOPE;
}
return fScopeParts[fCurrentIndex].getSelectedScope();
}
/*
* Implements method from ISearchPageContainer
*/
@Override
public IWorkingSet[] getSelectedWorkingSets() {
if (fScopeParts[fCurrentIndex] == null) {
// safe code - should not happen
return null;
}
return fScopeParts[fCurrentIndex].getSelectedWorkingSets();
}
@Override
public ISelection getSelection() {
return fCurrentSelection;
}
public IWorkbenchWindow getWorkbenchWindow() {
return fWorkbenchWindow;
}
/*
* Implements method from ISearchPageContainer
*/
@Override
public boolean hasValidScope() {
return getSelectedScope() != WORKING_SET_SCOPE || getSelectedWorkingSets() != null;
}
/**
* Notify that the scope selection has changed
* <p>
* Note: This is a special method to be called only from the ScopePart
* </p>
*/
public void notifyScopeSelectionChanged() {
setPerformActionEnabled(fLastEnableState);
}
@Override
public void removePageChangedListener(IPageChangedListener listener) {
fPageChangeListeners.remove(listener);
}
/*
* @see com.google.dart.tools.search.ui.ISearchPageContainer#allowsActiveEditorAsScope(boolean)
*/
@Override
public void setActiveEditorCanProvideScopeSelection(boolean state) {
if (fScopeParts[fCurrentIndex] != null) {
fScopeParts[fCurrentIndex].setActiveEditorCanProvideScopeSelection(state);
}
}
/*
* Overrides method from ExtendedDialogWindow
*/
@Override
public void setPerformActionEnabled(boolean state) {
fLastEnableState = state;
super.setPerformActionEnabled(state && hasValidScope());
}
/*
* Implements method from ISearchPageContainer
*/
@Override
public void setSelectedScope(int scope) {
if (fScopeParts[fCurrentIndex] != null) {
fScopeParts[fCurrentIndex].setSelectedScope(scope);
}
}
/*
* Implements method from ISearchPageContainer
*/
@Override
public void setSelectedWorkingSets(IWorkingSet[] workingSets) {
if (fScopeParts[fCurrentIndex] != null) {
fScopeParts[fCurrentIndex].setSelectedWorkingSets(workingSets);
}
}
@Override
protected void configureShell(Shell shell) {
super.configureShell(shell);
shell.setText(SearchMessages.SearchDialog_title);
PlatformUI.getWorkbench().getHelpSystem().setHelp(shell, ISearchHelpContextIds.SEARCH_DIALOG);
}
@Override
protected Control createButtonBar(Composite parent) {
Composite composite = new Composite(parent, SWT.NONE);
GridLayout layout = new GridLayout();
layout.numColumns = 0; // create
layout.marginHeight = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN);
layout.marginWidth = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN);
layout.verticalSpacing = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_SPACING);
layout.horizontalSpacing = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING);
composite.setLayout(layout);
composite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
// create help control if needed
if (isHelpAvailable()) {
createHelpControl(composite);
}
Label filler = new Label(composite, SWT.NONE);
filler.setLayoutData(new GridData(GridData.FILL_HORIZONTAL | GridData.GRAB_HORIZONTAL));
layout.numColumns++;
fReplaceButton = createActionButton(
composite,
REPLACE_ID,
SearchMessages.SearchDialog_replaceAction,
true);
fReplaceButton.setVisible(fCurrentPage instanceof IReplacePage);
Button searchButton = createActionButton(
composite,
SEARCH_ID,
SearchMessages.SearchDialog_searchAction,
true);
searchButton.setEnabled(fDescriptors.size() > 0);
super.createButtonsForButtonBar(composite); // cancel button
return composite;
}
@Override
protected Control createPageArea(Composite parent) {
int numPages = fDescriptors.size();
fScopeParts = new ScopePart[numPages];
if (numPages == 0) {
Label label = new Label(parent, SWT.CENTER | SWT.WRAP);
label.setText(SearchMessages.SearchDialog_noSearchExtension);
return label;
}
fCurrentIndex = getPreferredPageIndex();
final SearchPageDescriptor currentDesc = getDescriptorAt(fCurrentIndex);
Composite composite = new Composite(parent, SWT.NONE);
composite.setFont(parent.getFont());
GridLayout layout = new GridLayout();
layout.marginHeight = 0;
layout.marginWidth = 0;
composite.setLayout(layout);
composite.setLayoutData(new GridData(GridData.FILL_BOTH));
TabFolder folder = new TabFolder(composite, SWT.NONE);
folder.setLayout(new TabFolderLayout());
folder.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
folder.setFont(composite.getFont());
for (int i = 0; i < numPages; i++) {
SearchPageDescriptor descriptor = getDescriptorAt(i);
if (WorkbenchActivityHelper.filterItem(descriptor)) {
continue;
}
final TabItem item = new TabItem(folder, SWT.NONE);
item.setData("descriptor", descriptor); //$NON-NLS-1$
item.setText(descriptor.getLabel());
item.addDisposeListener(new DisposeListener() {
@Override
public void widgetDisposed(DisposeEvent e) {
item.setData("descriptor", null); //$NON-NLS-1$
if (item.getImage() != null) {
item.getImage().dispose();
}
}
});
ImageDescriptor imageDesc = descriptor.getImage();
if (imageDesc != null) {
item.setImage(imageDesc.createImage());
}
if (i == fCurrentIndex) {
Control pageControl = createPageControl(folder, descriptor);
pageControl.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
item.setControl(pageControl);
fCurrentPage = currentDesc.getPage();
}
}
folder.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent event) {
turnToPage(event);
}
});
folder.setSelection(fCurrentIndex);
return composite;
}
@Override
protected IDialogSettings getDialogBoundsSettings() {
return SearchPlugin.getDefault().getDialogSettingsSection("DialogBounds_SearchDialog"); //$NON-NLS-1$
}
@Override
protected Point getInitialSize() {
Point requiredSize = getShell().computeSize(SWT.DEFAULT, SWT.DEFAULT, true);
Point lastSize = super.getInitialSize();
if (requiredSize.x > lastSize.x || requiredSize.y > lastSize.y) {
return requiredSize;
}
return lastSize;
}
@Override
protected boolean performAction(int actionID) {
switch (actionID) {
case CUSTOMIZE_ID:
handleCustomizePressed();
return false;
case CANCEL:
return true;
case SEARCH_ID:
if (fCurrentPage != null) {
return fCurrentPage.performAction();
}
return true;
case REPLACE_ID:
boolean isAutoBuilding = SearchPlugin.setAutoBuilding(false);
try {
// safe cast, replace button is only visible when the current page is
// a replace page.
return ((IReplacePage) fCurrentPage).performReplace();
} finally {
SearchPlugin.setAutoBuilding(isAutoBuilding);
}
default:
return false;
}
}
private Control createPageControl(Composite parent, final SearchPageDescriptor descriptor) {
// Page wrapper
final Composite pageWrapper = new Composite(parent, SWT.NONE);
GridLayout layout = new GridLayout();
layout.marginWidth = 0;
layout.marginHeight = 0;
pageWrapper.setLayout(layout);
applyDialogFont(pageWrapper);
BusyIndicator.showWhile(getShell().getDisplay(), new Runnable() {
@Override
public void run() {
SafeRunner.run(new ISafeRunnable() {
@Override
public void handleException(Throwable ex) {
if (ex instanceof CoreException) {
ExceptionHandler.handle(
(CoreException) ex,
getShell(),
SearchMessages.Search_Error_createSearchPage_title,
Messages.format(
SearchMessages.Search_Error_createSearchPage_message,
descriptor.getLabel()));
} else {
ExceptionHandler.displayMessageDialog(
ex,
getShell(),
SearchMessages.Search_Error_createSearchPage_title,
Messages.format(
SearchMessages.Search_Error_createSearchPage_message,
descriptor.getLabel()));
}
}
@Override
public void run() throws Exception {
// create page and control
ISearchPage page = descriptor.createObject(SearchDialog.this);
if (page != null) {
page.createControl(pageWrapper);
}
}
});
}
});
ISearchPage page = descriptor.getPage();
if (page == null || page.getControl() == null) {
Composite container = new Composite(parent, SWT.NONE);
Label label = new Label(container, SWT.WRAP);
label.setText(Messages.format(
SearchMessages.SearchDialog_error_pageCreationFailed,
descriptor.getLabel()));
container.setLayout(new GridLayout());
label.setLayoutData(new GridData());
return container;
}
page.getControl().setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false));
// Search scope
boolean showScope = descriptor.showScopeSection();
if (showScope) {
Composite c = new Composite(pageWrapper, SWT.NONE);
c.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false));
c.setLayout(new GridLayout());
int index = fDescriptors.indexOf(descriptor);
fScopeParts[index] = new ScopePart(this, descriptor.canSearchInProjects());
Control part = fScopeParts[index].createPart(c);
applyDialogFont(part);
part.setLayoutData(new GridData(SWT.FILL, SWT.BEGINNING, true, false));
fScopeParts[index].setVisible(true);
}
return pageWrapper;
}
private void destroyImages(List<Image> images) {
Iterator<Image> iter = images.iterator();
while (iter.hasNext()) {
Image image = iter.next();
if (image != null && !image.isDisposed()) {
image.dispose();
}
}
}
private List<SearchPageDescriptor> filterByActivities(List<SearchPageDescriptor> input) {
ArrayList<SearchPageDescriptor> filteredList = new ArrayList<SearchPageDescriptor>(input.size());
for (Iterator<SearchPageDescriptor> descriptors = input.iterator(); descriptors.hasNext();) {
SearchPageDescriptor descriptor = descriptors.next();
if (!WorkbenchActivityHelper.filterItem(descriptor)) {
filteredList.add(descriptor);
}
}
return filteredList;
}
private SearchPageDescriptor getDescriptorAt(int index) {
return fDescriptors.get(index);
}
private Point getMinSize() {
if (fMinSize != null) {
return fMinSize;
}
int x = 0;
int y = 0;
int length = fDescriptors.size();
for (int i = 0; i < length; i++) {
Point size = getDescriptorAt(i).getPreferredSize();
if (size.x != SWT.DEFAULT) {
x = Math.max(x, size.x);
}
if (size.y != SWT.DEFAULT) {
y = Math.max(y, size.y);
}
}
fMinSize = new Point(x, y);
return fMinSize;
}
private int getPreferredPageIndex() {
Object element = null;
ISelection selection = getSelection();
if (selection instanceof IStructuredSelection) {
element = ((IStructuredSelection) selection).getFirstElement();
}
if (element == null) {
element = getActiveEditorInput();
}
int result = 0;
int level = ISearchPageScoreComputer.LOWEST;
int size = fDescriptors.size();
for (int i = 0; i < size; i++) {
SearchPageDescriptor descriptor = fDescriptors.get(i);
if (fInitialPageId != null && fInitialPageId.equals(descriptor.getId())) {
return i;
}
int newLevel = descriptor.computeScore(element);
if (newLevel > level) {
level = newLevel;
result = i;
}
}
return result;
}
private void handleCustomizePressed() {
List<SearchPageDescriptor> input = SearchPlugin.getDefault().getSearchPageDescriptors();
input = filterByActivities(input);
final ArrayList<Image> createdImages = new ArrayList<Image>(input.size());
ILabelProvider labelProvider = new LabelProvider() {
@Override
public Image getImage(Object element) {
if (element instanceof SearchPageDescriptor) {
ImageDescriptor imageDesc = ((SearchPageDescriptor) element).getImage();
if (imageDesc == null) {
return null;
}
Image image = imageDesc.createImage();
if (image != null) {
createdImages.add(image);
}
return image;
}
return null;
}
@Override
public String getText(Object element) {
if (element instanceof SearchPageDescriptor) {
return LegacyActionTools.removeMnemonics(((SearchPageDescriptor) element).getLabel());
}
return null;
}
};
String message = SearchMessages.SearchPageSelectionDialog_message;
ListSelectionDialog dialog = new ListSelectionDialog(
getShell(),
input,
new ArrayContentProvider(),
labelProvider,
message) {
@Override
public void create() {
super.create();
final CheckboxTableViewer viewer = getViewer();
final Button okButton = this.getOkButton();
viewer.addCheckStateListener(new ICheckStateListener() {
@Override
public void checkStateChanged(CheckStateChangedEvent event) {
okButton.setEnabled(viewer.getCheckedElements().length > 0);
}
});
SelectionListener listener = new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
okButton.setEnabled(viewer.getCheckedElements().length > 0);
}
};
this.getButton(IDialogConstants.SELECT_ALL_ID).addSelectionListener(listener);
this.getButton(IDialogConstants.DESELECT_ALL_ID).addSelectionListener(listener);
}
};
dialog.setTitle(SearchMessages.SearchPageSelectionDialog_title);
dialog.setInitialSelections(SearchPlugin.getDefault().getEnabledSearchPageDescriptors(
fInitialPageId).toArray());
if (dialog.open() == Window.OK) {
SearchPageDescriptor.setEnabled(dialog.getResult());
Display display = getShell().getDisplay();
close();
if (display != null && !display.isDisposed()) {
display.asyncExec(new Runnable() {
@Override
public void run() {
new OpenSearchDialogAction().run();
}
});
}
}
destroyImages(createdImages);
}
private boolean mustResize(Point currentSize, Point newSize) {
return currentSize.x < newSize.x || currentSize.y < newSize.y;
}
private void notifyPageChanged() {
if (fPageChangeListeners != null && !fPageChangeListeners.isEmpty()) {
// Fires the page change event
final PageChangedEvent event = new PageChangedEvent(this, getSelectedPage());
Object[] listeners = fPageChangeListeners.getListeners();
for (int i = 0; i < listeners.length; ++i) {
final IPageChangedListener l = (IPageChangedListener) listeners[i];
SafeRunner.run(new SafeRunnable() {
@Override
public void run() {
l.pageChanged(event);
}
});
}
}
}
private void resizeDialogIfNeeded(Point oldSize, Point newSize) {
if (oldSize == null || newSize == null) {
return;
}
Shell shell = getShell();
Point shellSize = shell.getSize();
if (mustResize(oldSize, newSize)) {
if (newSize.x > oldSize.x) {
shellSize.x += (newSize.x - oldSize.x);
}
if (newSize.y > oldSize.y) {
shellSize.y += (newSize.y - oldSize.y);
}
shell.setSize(shellSize);
shell.layout(true);
}
}
private void turnToPage(SelectionEvent event) {
final TabItem item = (TabItem) event.item;
TabFolder folder = item.getParent();
SearchPageDescriptor descriptor = (SearchPageDescriptor) item.getData("descriptor"); //$NON-NLS-1$
if (item.getControl() == null) {
item.setControl(createPageControl(folder, descriptor));
}
Control oldControl = folder.getItem(fCurrentIndex).getControl();
Point oldSize = oldControl.getSize();
Control newControl = item.getControl();
Point newSize = newControl.computeSize(SWT.DEFAULT, SWT.DEFAULT, true);
resizeDialogIfNeeded(oldSize, newSize);
ISearchPage oldPage = fCurrentPage;
if (oldPage != null) {
oldPage.setVisible(false);
}
fCurrentPage = descriptor.getPage();
fCurrentIndex = folder.getSelectionIndex();
setPerformActionEnabled(fCurrentPage != null);
if (fCurrentPage != null) {
fCurrentPage.setVisible(true);
}
Control pageControl = fCurrentPage.getControl();
if (pageControl instanceof Composite) {
((Composite) pageControl).layout(false, true);
}
fReplaceButton.setVisible(fCurrentPage instanceof IReplacePage);
notifyPageChanged();
}
}