bundles/org.eclipse.ui.views/src/org/eclipse/ui/views/navigator/GotoResourceDialog.java - platform/eclipse.platform.ui - Git at Google

 package org.eclipse.ui.views.navigator;

 /*
  * (c) Copyright IBM Corp. 2000, 2001.
  * All Rights Reserved.
  */
 import org.eclipse.swt.widgets.*;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.*;
 import org.eclipse.swt.layout.*;
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.core.resources.*;
 import org.eclipse.ui.dialogs.*;

 import java.text.Collator;
 import java.util.*;
 import org.eclipse.ui.model.*;
 import org.eclipse.ui.help.*;

 /**
  * Shows a list of resources to the user with a text entry field
  * for a string pattern used to filter the list of resources.
  *
  */
 /*package*/    class GotoResourceDialog extends SelectionDialog {
 	Text pattern;
 	Table resourceNames;
 	Table folderNames;
 	String patternString;
 	IResource selection;
 	private static Collator collator = Collator.getInstance();

 	StringMatcher stringMatcher;

 	UpdateThread updateThread;
 	ResourceDescriptor descriptors[];
 	int descriptorsSize;

 	WorkbenchLabelProvider labelProvider = new WorkbenchLabelProvider();
 	static class ResourceDescriptor implements Comparable {
 		String label;
 		ArrayList resources = new ArrayList(1);
 		public int compareTo(Object o) {
 			return collator.compare(label,((ResourceDescriptor)o).label);
 		}
 	}

 	class UpdateThread extends Thread {
 		boolean stop = false;
 		int firstMatch = 0;
 		int lastMatch = descriptorsSize - 1;

 		public void run() {
 			Display display = resourceNames.getDisplay();
 			final int itemIndex[] = {0};
 			final int itemCount[] = {0};
 			display.syncExec(new Runnable(){
 				public void run() {
 			 		itemCount[0] = resourceNames.getItemCount();
 				}
 			});
 			int last = lastMatch;
 			boolean setFirstMatch = true;
 			for (int i = firstMatch; i <= lastMatch;i++) {
 				if(i % 50 == 0) {
 					try { Thread.sleep(10); } catch(InterruptedException e){}
 				}
 				if(stop || resourceNames.isDisposed()) return;
 				final int index = i;
 				if(match(descriptors[index].label)) {
 					if(setFirstMatch) {
 						setFirstMatch = false;
 						firstMatch = index;
 					}
 					last = index;
 					display.syncExec(new Runnable() {
 						public void run() {
 							if(stop || resourceNames.isDisposed()) return;
 							updateItem(index,itemIndex[0],itemCount[0]);
 							itemIndex[0]++;
 						}
 					});
 				}
 			}
 			lastMatch = last;
 			display.syncExec(new Runnable() {
 				public void run() {
 			 		itemCount[0] = resourceNames.getItemCount();
 			 		if(itemIndex[0] < itemCount[0]) {
 			 			resourceNames.setRedraw(false);
 				 		resourceNames.remove(itemIndex[0],itemCount[0] -1);
 			 			resourceNames.setRedraw(true);
 			 		}
 			 		// If no resources, remove remaining folder entries
 			 		if(resourceNames.getItemCount() == 0) {
 			 			folderNames.removeAll();
 			 		}
 				}
 			});
 		}
 	};
 /**
  * Creates a new instance of the class.
  */
 protected GotoResourceDialog(Shell parentShell,IResource resources[]) {
 	super(parentShell);
 	setTitle(ResourceNavigatorMessages.getString("Goto.title")); //$NON-NLS-1$
 	setShellStyle(getShellStyle() | SWT.RESIZE);
 	initDescriptors(resources);
 }
 public boolean close() {
 	boolean r = super.close();
 	labelProvider.dispose();
 	return r;
 }
 /* (non-Javadoc)
  * Method declared in Window.
  */
 protected void configureShell(Shell shell) {
 	super.configureShell(shell);
 	WorkbenchHelp.setHelp(shell, INavigatorHelpContextIds.GOTO_RESOURCE_DIALOG);
 }
 public void create() {
 	super.create();
 	pattern.setFocus();
 }
 /**
  * Creates the contents of this dialog, initializes the
  * listener and the update thread.
  */
 protected Control createDialogArea(Composite parent) {

 	Composite dialogArea = (Composite)super.createDialogArea(parent);
 	Label l = new Label(dialogArea,SWT.NONE);
 	l.setText(ResourceNavigatorMessages.getString("Goto.label")); //$NON-NLS-1$
 	GridData data = new GridData(GridData.FILL_HORIZONTAL);
 	l.setLayoutData(data);

 	l = new Label(dialogArea,SWT.NONE);
 	l.setText(ResourceNavigatorMessages.getString("Goto.pattern")); //$NON-NLS-1$
 	data = new GridData(GridData.FILL_HORIZONTAL);
 	l.setLayoutData(data);
 	pattern = new Text(dialogArea,SWT.SINGLE|SWT.BORDER);
 	pattern.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
 	l = new Label(dialogArea,SWT.NONE);
 	l.setText(ResourceNavigatorMessages.getString("Goto.matching")); //$NON-NLS-1$
 	data = new GridData(GridData.FILL_HORIZONTAL);
 	l.setLayoutData(data);
 	resourceNames = new Table(dialogArea,SWT.SINGLE|SWT.BORDER|SWT.V_SCROLL);
 	data = new GridData(GridData.FILL_BOTH);
 	data.heightHint = 12 * resourceNames.getItemHeight();
 	resourceNames.setLayoutData(data);

 	l = new Label(dialogArea,SWT.NONE);
 	l.setText(ResourceNavigatorMessages.getString("Goto.folders")); //$NON-NLS-1$
 	data = new GridData(GridData.FILL_HORIZONTAL);
 	l.setLayoutData(data);

 	folderNames = new Table(dialogArea,SWT.SINGLE|SWT.BORDER|SWT.V_SCROLL|SWT.H_SCROLL);
 	data = new GridData(GridData.FILL_BOTH);
 	data.widthHint = 300;
 	data.heightHint = 4 * folderNames.getItemHeight();
 	folderNames.setLayoutData(data);

 	updateThread = new UpdateThread();
 	updateThread.start();

 	pattern.addKeyListener(new KeyAdapter(){
 		public void keyPressed(KeyEvent e) {
 			textChanged();
 		}
 	});

 	resourceNames.addSelectionListener(new SelectionAdapter(){
 		public void widgetSelected(SelectionEvent e) {
 			updateFolders((ResourceDescriptor)e.item.getData());
 		}
 		public void widgetDefaultSelected(SelectionEvent e) {
 			okPressed();
 		}
 	});

 	folderNames.addSelectionListener(new SelectionAdapter(){
 		public void widgetDefaultSelected(SelectionEvent e) {
 			okPressed();
 		}
 	});

 	return dialogArea;
 }
 /**
  * Create a new table item if there is no item otherwise update one
  * exitent item with the new info.
  */
 private void updateItem(int index, int itemPos,int itemCount) {
 	ResourceDescriptor desc = descriptors[index];
 	TableItem item;
 	if(itemPos < itemCount) {
 		item = resourceNames.getItem(itemPos);
 		if(item.getData() != desc) {
 			item.setText(desc.label);
 			item.setData(desc);
 			item.setImage(getImage(desc));
 			if (itemPos == 0) {
 				resourceNames.setSelection(0);
 				updateFolders(desc);
 			}
 		}
 	} else {
 		item = new TableItem(resourceNames, SWT.NONE);
 		item.setText(desc.label);
 		item.setData(desc);
 		item.setImage(getImage(desc));
 		if (itemPos == 0) {
 			resourceNames.setSelection(0);
 			updateFolders(desc);
 		}
 	}
 }
 /**
  * Return a image for a resource.
  */
 private Image getImage(ResourceDescriptor desc) {
 	IResource r = (IResource)desc.resources.get(0);
 	return labelProvider.getImage(r);
 }
 /**
  * Returns the IResource selected by the user or null if the
  * cancel was pressed.
  */
 public IResource getSelection() {
 	return selection;
 }
 /**
  * Creates a ResourceDescriptor for each IResource
  * sort them and remove the duplicated ones.
  */
 private void initDescriptors(IResource resources[]) {
 	descriptors = new ResourceDescriptor[resources.length];
 	for (int i = 0; i < resources.length; i++){
 		IResource r = resources[i];
 		ResourceDescriptor d = new ResourceDescriptor();
 		//TDB: Should use the label provider and compare performance.
 		d.label = r.getName();
 		d.resources.add(r);
 		descriptors[i] = d;
 	}
 	Arrays.sort(descriptors);
 	descriptorsSize = descriptors.length;

 	//Merge the resource descriptor with the same label and type.
 	int index = 0;
 	if(descriptorsSize < 2)
 		return;
 	ResourceDescriptor current = descriptors[index];
 	IResource currentResource = (IResource)current.resources.get(0);
 	for (int i = 1; i < descriptorsSize; i++){
 		ResourceDescriptor next = descriptors[i];
 		IResource nextResource = (IResource)next.resources.get(0);
 		if((next.label.equals(current.label)) && (nextResource.getType() == currentResource.getType())) {
 			current.resources.add(next.resources.get(0));
 		} else {
 			descriptors[index + 1] = descriptors[i];
 			index++;
 			current = descriptors[index];
 			currentResource = (IResource)current.resources.get(0);
 		}
 	}
 	descriptorsSize = index + 1;
 }
 /**
  * Return true if the label matchs the choosen pattern.
  */
 private boolean match(String label) {
 	if((patternString == null) || (patternString.equals("")) || (patternString.equals("*")))//$NON-NLS-2$//$NON-NLS-1$
 		return true;
 	return stringMatcher.match(label);
 }
 /**
  * The user has selected a resource and the dialog is closing.
  */
 protected void okPressed() {
 	TableItem items[] = folderNames.getSelection();
 	if(items.length != 1)
 		selection = null;
 	else
 		selection = (IResource)items[0].getData();
 	super.okPressed();
 }

 /**
  * The text in the pattern text entry has changed.
  * Create a new string matcher and start a new
  * update tread.
  */
 private void textChanged() {
 	String oldPattern = patternString;
 	patternString = pattern.getText().trim();
 	if(!patternString.endsWith("*"))//$NON-NLS-1$
 		patternString = patternString + "*";//$NON-NLS-1$
 	if(patternString.equals(oldPattern))
 		return;

 	updateThread.stop = true;
 	stringMatcher = new StringMatcher(patternString,true,false);
 	UpdateThread oldThread = updateThread;
 	updateThread = new UpdateThread();
 	if(oldPattern == null ||
 	  (oldPattern.length() == 0) ||
 	  (!patternString.regionMatches(0,oldPattern,0,oldPattern.length() - 1))) {
 		updateThread.firstMatch = 0;
 		updateThread.lastMatch = descriptorsSize - 1;
 	} else {
 		updateThread.firstMatch = oldThread.firstMatch;
 		updateThread.lastMatch = oldThread.lastMatch;
 	}
 	updateThread.start();
 }
 /**
  * A new resource has been selected. Change the contents
  * of the folder names list.
  */
 private void updateFolders(ResourceDescriptor desc) {
 	folderNames.removeAll();
 	for (int i = 0; i < desc.resources.size(); i++){
 		TableItem newItem = new TableItem(folderNames,SWT.NONE);
 		IResource r = (IResource) desc.resources.get(i);
 		IResource parent = r.getParent();
 		String text;
 		if (parent.getType() == IResource.ROOT) {
 			// XXX: Get readable name for workspace root ("Workspace"), without duplicating language-specific string here.
 			text = labelProvider.getText(parent);
 		}
 		else {
 			text = parent.getFullPath().makeRelative().toString();
 		}
 		newItem.setText(text);
 		newItem.setImage(labelProvider.getImage(r.getParent()));
 		newItem.setData(r);
 	}
 	folderNames.setSelection(0);
 }
 }
	package org.eclipse.ui.views.navigator;

	/*
	* (c) Copyright IBM Corp. 2000, 2001.
	* All Rights Reserved.
	*/
	import org.eclipse.swt.widgets.*;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.*;
	import org.eclipse.swt.layout.*;
	import org.eclipse.swt.graphics.Image;
	import org.eclipse.core.resources.*;
	import org.eclipse.ui.dialogs.*;

	import java.text.Collator;
	import java.util.*;
	import org.eclipse.ui.model.*;
	import org.eclipse.ui.help.*;

	/**
	* Shows a list of resources to the user with a text entry field
	* for a string pattern used to filter the list of resources.
	*
	*/
	/package/ class GotoResourceDialog extends SelectionDialog {
	Text pattern;
	Table resourceNames;
	Table folderNames;
	String patternString;
	IResource selection;
	private static Collator collator = Collator.getInstance();

	StringMatcher stringMatcher;

	UpdateThread updateThread;
	ResourceDescriptor descriptors[];
	int descriptorsSize;

	WorkbenchLabelProvider labelProvider = new WorkbenchLabelProvider();
	static class ResourceDescriptor implements Comparable {
	String label;
	ArrayList resources = new ArrayList(1);
	public int compareTo(Object o) {
	return collator.compare(label,((ResourceDescriptor)o).label);
	}
	}

	class UpdateThread extends Thread {
	boolean stop = false;
	int firstMatch = 0;
	int lastMatch = descriptorsSize - 1;

	public void run() {
	Display display = resourceNames.getDisplay();
	final int itemIndex[] = {0};
	final int itemCount[] = {0};
	display.syncExec(new Runnable(){
	public void run() {
	itemCount[0] = resourceNames.getItemCount();
	}
	});
	int last = lastMatch;
	boolean setFirstMatch = true;
	for (int i = firstMatch; i <= lastMatch;i++) {
	if(i % 50 == 0) {
	try { Thread.sleep(10); } catch(InterruptedException e){}
	}
	if(stop \|\| resourceNames.isDisposed()) return;
	final int index = i;
	if(match(descriptors[index].label)) {
	if(setFirstMatch) {
	setFirstMatch = false;
	firstMatch = index;
	}
	last = index;
	display.syncExec(new Runnable() {
	public void run() {
	if(stop \|\| resourceNames.isDisposed()) return;
	updateItem(index,itemIndex[0],itemCount[0]);
	itemIndex[0]++;
	}
	});
	}
	}
	lastMatch = last;
	display.syncExec(new Runnable() {
	public void run() {
	itemCount[0] = resourceNames.getItemCount();
	if(itemIndex[0] < itemCount[0]) {
	resourceNames.setRedraw(false);
	resourceNames.remove(itemIndex[0],itemCount[0] -1);
	resourceNames.setRedraw(true);
	}
	// If no resources, remove remaining folder entries
	if(resourceNames.getItemCount() == 0) {
	folderNames.removeAll();
	}
	}
	});
	}
	};
	/**
	* Creates a new instance of the class.
	*/
	protected GotoResourceDialog(Shell parentShell,IResource resources[]) {
	super(parentShell);
	setTitle(ResourceNavigatorMessages.getString("Goto.title")); //$NON-NLS-1$
	setShellStyle(getShellStyle() \| SWT.RESIZE);
	initDescriptors(resources);
	}
	public boolean close() {
	boolean r = super.close();
	labelProvider.dispose();
	return r;
	}
	/* (non-Javadoc)
	* Method declared in Window.
	*/
	protected void configureShell(Shell shell) {
	super.configureShell(shell);
	WorkbenchHelp.setHelp(shell, INavigatorHelpContextIds.GOTO_RESOURCE_DIALOG);
	}
	public void create() {
	super.create();
	pattern.setFocus();
	}
	/**
	* Creates the contents of this dialog, initializes the
	* listener and the update thread.
	*/
	protected Control createDialogArea(Composite parent) {

	Composite dialogArea = (Composite)super.createDialogArea(parent);
	Label l = new Label(dialogArea,SWT.NONE);
	l.setText(ResourceNavigatorMessages.getString("Goto.label")); //$NON-NLS-1$
	GridData data = new GridData(GridData.FILL_HORIZONTAL);
	l.setLayoutData(data);

	l = new Label(dialogArea,SWT.NONE);
	l.setText(ResourceNavigatorMessages.getString("Goto.pattern")); //$NON-NLS-1$
	data = new GridData(GridData.FILL_HORIZONTAL);
	l.setLayoutData(data);
	pattern = new Text(dialogArea,SWT.SINGLE\|SWT.BORDER);
	pattern.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
	l = new Label(dialogArea,SWT.NONE);
	l.setText(ResourceNavigatorMessages.getString("Goto.matching")); //$NON-NLS-1$
	data = new GridData(GridData.FILL_HORIZONTAL);
	l.setLayoutData(data);
	resourceNames = new Table(dialogArea,SWT.SINGLE\|SWT.BORDER\|SWT.V_SCROLL);
	data = new GridData(GridData.FILL_BOTH);
	data.heightHint = 12 * resourceNames.getItemHeight();
	resourceNames.setLayoutData(data);

	l = new Label(dialogArea,SWT.NONE);
	l.setText(ResourceNavigatorMessages.getString("Goto.folders")); //$NON-NLS-1$
	data = new GridData(GridData.FILL_HORIZONTAL);
	l.setLayoutData(data);

	folderNames = new Table(dialogArea,SWT.SINGLE\|SWT.BORDER\|SWT.V_SCROLL\|SWT.H_SCROLL);
	data = new GridData(GridData.FILL_BOTH);
	data.widthHint = 300;
	data.heightHint = 4 * folderNames.getItemHeight();
	folderNames.setLayoutData(data);

	updateThread = new UpdateThread();
	updateThread.start();

	pattern.addKeyListener(new KeyAdapter(){
	public void keyPressed(KeyEvent e) {
	textChanged();
	}
	});

	resourceNames.addSelectionListener(new SelectionAdapter(){
	public void widgetSelected(SelectionEvent e) {
	updateFolders((ResourceDescriptor)e.item.getData());
	}
	public void widgetDefaultSelected(SelectionEvent e) {
	okPressed();
	}
	});

	folderNames.addSelectionListener(new SelectionAdapter(){
	public void widgetDefaultSelected(SelectionEvent e) {
	okPressed();
	}
	});

	return dialogArea;
	}
	/**
	* Create a new table item if there is no item otherwise update one
	* exitent item with the new info.
	*/
	private void updateItem(int index, int itemPos,int itemCount) {
	ResourceDescriptor desc = descriptors[index];
	TableItem item;
	if(itemPos < itemCount) {
	item = resourceNames.getItem(itemPos);
	if(item.getData() != desc) {
	item.setText(desc.label);
	item.setData(desc);
	item.setImage(getImage(desc));
	if (itemPos == 0) {
	resourceNames.setSelection(0);
	updateFolders(desc);
	}
	}
	} else {
	item = new TableItem(resourceNames, SWT.NONE);
	item.setText(desc.label);
	item.setData(desc);
	item.setImage(getImage(desc));
	if (itemPos == 0) {
	resourceNames.setSelection(0);
	updateFolders(desc);
	}
	}
	}
	/**
	* Return a image for a resource.
	*/
	private Image getImage(ResourceDescriptor desc) {
	IResource r = (IResource)desc.resources.get(0);
	return labelProvider.getImage(r);
	}
	/**
	* Returns the IResource selected by the user or null if the
	* cancel was pressed.
	*/
	public IResource getSelection() {
	return selection;
	}
	/**
	* Creates a ResourceDescriptor for each IResource
	* sort them and remove the duplicated ones.
	*/
	private void initDescriptors(IResource resources[]) {
	descriptors = new ResourceDescriptor[resources.length];
	for (int i = 0; i < resources.length; i++){
	IResource r = resources[i];
	ResourceDescriptor d = new ResourceDescriptor();
	//TDB: Should use the label provider and compare performance.
	d.label = r.getName();
	d.resources.add(r);
	descriptors[i] = d;
	}
	Arrays.sort(descriptors);
	descriptorsSize = descriptors.length;

	//Merge the resource descriptor with the same label and type.
	int index = 0;
	if(descriptorsSize < 2)
	return;
	ResourceDescriptor current = descriptors[index];
	IResource currentResource = (IResource)current.resources.get(0);
	for (int i = 1; i < descriptorsSize; i++){
	ResourceDescriptor next = descriptors[i];
	IResource nextResource = (IResource)next.resources.get(0);
	if((next.label.equals(current.label)) && (nextResource.getType() == currentResource.getType())) {
	current.resources.add(next.resources.get(0));
	} else {
	descriptors[index + 1] = descriptors[i];
	index++;
	current = descriptors[index];
	currentResource = (IResource)current.resources.get(0);
	}
	}
	descriptorsSize = index + 1;
	}
	/**
	* Return true if the label matchs the choosen pattern.
	*/
	private boolean match(String label) {
	if((patternString == null) \|\| (patternString.equals("")) \|\| (patternString.equals("*")))//$NON-NLS-2$//$NON-NLS-1$
	return true;
	return stringMatcher.match(label);
	}
	/**
	* The user has selected a resource and the dialog is closing.
	*/
	protected void okPressed() {
	TableItem items[] = folderNames.getSelection();
	if(items.length != 1)
	selection = null;
	else
	selection = (IResource)items[0].getData();
	super.okPressed();
	}

	/**
	* The text in the pattern text entry has changed.
	* Create a new string matcher and start a new
	* update tread.
	*/
	private void textChanged() {
	String oldPattern = patternString;
	patternString = pattern.getText().trim();
	if(!patternString.endsWith("*"))//$NON-NLS-1$
	patternString = patternString + "*";//$NON-NLS-1$
	if(patternString.equals(oldPattern))
	return;

	updateThread.stop = true;
	stringMatcher = new StringMatcher(patternString,true,false);
	UpdateThread oldThread = updateThread;
	updateThread = new UpdateThread();
	if(oldPattern == null \|\|
	(oldPattern.length() == 0) \|\|
	(!patternString.regionMatches(0,oldPattern,0,oldPattern.length() - 1))) {
	updateThread.firstMatch = 0;
	updateThread.lastMatch = descriptorsSize - 1;
	} else {
	updateThread.firstMatch = oldThread.firstMatch;
	updateThread.lastMatch = oldThread.lastMatch;
	}
	updateThread.start();
	}
	/**
	* A new resource has been selected. Change the contents
	* of the folder names list.
	*/
	private void updateFolders(ResourceDescriptor desc) {
	folderNames.removeAll();
	for (int i = 0; i < desc.resources.size(); i++){
	TableItem newItem = new TableItem(folderNames,SWT.NONE);
	IResource r = (IResource) desc.resources.get(i);
	IResource parent = r.getParent();
	String text;
	if (parent.getType() == IResource.ROOT) {
	// XXX: Get readable name for workspace root ("Workspace"), without duplicating language-specific string here.
	text = labelProvider.getText(parent);
	}
	else {
	text = parent.getFullPath().makeRelative().toString();
	}
	newItem.setText(text);
	newItem.setImage(labelProvider.getImage(r.getParent()));
	newItem.setData(r);
	}
	folderNames.setSelection(0);
	}
	}