bundles/org.eclipse.wst.html.ui/src/org/eclipse/wst/html/ui/internal/preferences/ui/HTMLSourcePreferencePage.java - sourceediting/webtools.sourceediting - Git at Google

 /*******************************************************************************
  * Copyright (c) 2004, 2010 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.html.ui.internal.preferences.ui;

 import java.lang.reflect.InvocationTargetException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Locale;

 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.NullProgressMonitor;
 import org.eclipse.core.runtime.Preferences;
 import org.eclipse.jface.dialogs.IDialogConstants;
 import org.eclipse.jface.layout.GridDataFactory;
 import org.eclipse.jface.operation.IRunnableContext;
 import org.eclipse.jface.operation.IRunnableWithProgress;
 import org.eclipse.jface.preference.IPreferenceStore;
 import org.eclipse.jface.viewers.ILabelProvider;
 import org.eclipse.jface.viewers.ILabelProviderListener;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.IStructuredContentProvider;
 import org.eclipse.jface.viewers.StructuredSelection;
 import org.eclipse.jface.viewers.TableViewer;
 import org.eclipse.jface.viewers.Viewer;
 import org.eclipse.jface.viewers.ViewerComparator;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.graphics.Image;
 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.Group;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Shell;
 import org.eclipse.swt.widgets.Spinner;
 import org.eclipse.swt.widgets.Text;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.dialogs.ElementListSelectionDialog;
 import org.eclipse.ui.dialogs.PreferenceLinkArea;
 import org.eclipse.ui.preferences.IWorkbenchPreferenceContainer;
 import org.eclipse.wst.html.core.internal.HTMLCorePlugin;
 import org.eclipse.wst.html.core.internal.contentmodel.HTMLCMDocumentFactory;
 import org.eclipse.wst.html.core.internal.format.HTMLFormattingUtil;
 import org.eclipse.wst.html.core.internal.preferences.HTMLCorePreferenceNames;
 import org.eclipse.wst.html.ui.internal.HTMLUIMessages;
 import org.eclipse.wst.html.ui.internal.HTMLUIPlugin;
 import org.eclipse.wst.html.ui.internal.editor.IHelpContextIds;
 import org.eclipse.wst.sse.ui.internal.preferences.ui.AbstractPreferencePage;
 import org.eclipse.wst.xml.core.internal.contentmodel.CMNamedNodeMap;
 import org.eclipse.wst.xml.core.internal.contentmodel.CMNode;
 import org.eclipse.wst.xml.core.internal.provisional.contentmodel.CMDocType;

 import com.ibm.icu.text.Collator;

 public class HTMLSourcePreferencePage extends AbstractPreferencePage {
 	private Button fTagNameUpper = null;
 	private Button fTagNameLower = null;
 	private Button fAttrNameUpper = null;
 	private Button fAttrNameLower = null;

 	private final int MIN_INDENTATION_SIZE = 0;
 	private final int MAX_INDENTATION_SIZE = 16;

 	private Button fClearAllBlankLines;

 	// Formatting
 	private Text fLineWidthText;
 	private Button fSplitMultiAttrs;
 	private Button fAlignEndBracket;
 	private Button fIndentUsingTabs;
 	private Button fIndentUsingSpaces;
 	private Spinner fIndentationSize;

 	private Button fAddButton;
 	private Button fRemoveButton;

 	private TableViewer fViewer;

 	private ContentProvider fContentProvider;

 	private Composite createContentsForPreferredCaseGroup(Composite parent, int columnSpan) {
 		Group caseGroup = createGroup(parent, columnSpan);
 		caseGroup.setText(HTMLUIMessages.Preferred_markup_case_UI_);

 		// d257064 need to associate group w/ radio buttons so radio buttons
 		// header can be read
 		Group tagNameGroup = createGroup(caseGroup, 1);
 		tagNameGroup.setText(HTMLUIMessages.Tag_names__UI_);
 		fTagNameUpper = createRadioButton(tagNameGroup, HTMLUIMessages.Tag_names_Upper_case_UI_);
 		fTagNameLower = createRadioButton(tagNameGroup, HTMLUIMessages.Tag_names_Lower_case_UI_);

 		// d257064 need to associate group w/ radio buttons so radio buttons
 		// header can be read
 		Group attrNameGroup = createGroup(caseGroup, 1);
 		attrNameGroup.setText(HTMLUIMessages.Attribute_names__UI_);
 		fAttrNameUpper = createRadioButton(attrNameGroup, HTMLUIMessages.Attribute_names_Upper_case_UI_);
 		fAttrNameLower = createRadioButton(attrNameGroup, HTMLUIMessages.Attribute_names_Lower_case_UI_);

 		return parent;

 	}

 	private void createContentsForFormattingGroup(Composite parent) {
 		Group formattingGroup = createGroup(parent, 2);
 		formattingGroup.setText(HTMLUIMessages.Formatting_UI_);

 		createLabel(formattingGroup, HTMLUIMessages.Line_width__UI_);
 		fLineWidthText = new Text(formattingGroup, SWT.SINGLE | SWT.BORDER);
 		GridData gData = new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING | GridData.BEGINNING);
 		gData.widthHint = 25;
 		fLineWidthText.setLayoutData(gData);
 		fLineWidthText.addModifyListener(this);

 		fSplitMultiAttrs = createCheckBox(formattingGroup, HTMLUIMessages.Split_multiple_attributes);
 		((GridData) fSplitMultiAttrs.getLayoutData()).horizontalSpan = 2;
 		fAlignEndBracket = createCheckBox(formattingGroup, HTMLUIMessages.Align_final_bracket);
 		((GridData) fAlignEndBracket.getLayoutData()).horizontalSpan = 2;
 		fClearAllBlankLines = createCheckBox(formattingGroup, HTMLUIMessages.Clear_all_blank_lines_UI_);
 		((GridData) fClearAllBlankLines.getLayoutData()).horizontalSpan = 2;

 		// [269224] - Place the indent controls in their own composite for proper tab ordering
 		Composite indentComposite = createComposite(formattingGroup, 1);
 		((GridData) indentComposite.getLayoutData()).horizontalSpan = 2;
 		((GridLayout) indentComposite.getLayout()).marginWidth = 0;
 		((GridLayout) indentComposite.getLayout()).marginHeight = 0;

 		fIndentUsingTabs = createRadioButton(indentComposite, HTMLUIMessages.Indent_using_tabs);
 		((GridData) fIndentUsingTabs.getLayoutData()).horizontalSpan = 1;

 		fIndentUsingSpaces = createRadioButton(indentComposite, HTMLUIMessages.Indent_using_spaces);
 		((GridData) fIndentUsingSpaces.getLayoutData()).horizontalSpan = 1;

 		createLabel(formattingGroup, HTMLUIMessages.Indentation_size);
 		fIndentationSize = new Spinner(formattingGroup, SWT.READ_ONLY | SWT.BORDER);
 		GridData gd = new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING);
 		fIndentationSize.setLayoutData(gd);
 		fIndentationSize.setToolTipText(HTMLUIMessages.Indentation_size_tip);
 		fIndentationSize.setMinimum(MIN_INDENTATION_SIZE);
 		fIndentationSize.setMaximum(MAX_INDENTATION_SIZE);
 		fIndentationSize.setIncrement(1);
 		fIndentationSize.setPageIncrement(4);
 		fIndentationSize.addModifyListener(this);

 		GridData data;


 		Composite inlineGroup = new Composite(formattingGroup, SWT.NONE);
 		GridLayout layout = new GridLayout();
 		layout.numColumns = 2;
 		layout.marginWidth = 0;
 		layout.marginHeight = 0;
 		inlineGroup.setLayout(layout);

 		data = new GridData(GridData.FILL_BOTH);
 		data.horizontalSpan = 2;
 		inlineGroup.setLayoutData(data);

 		Label label = createLabel(inlineGroup, HTMLUIMessages.Inline_elements_table_label);
 		data = new GridData(GridData.FILL_HORIZONTAL);
 		data.horizontalSpan = 2;
 		label.setLayoutData(data);

 		final TableViewer viewer = new TableViewer(inlineGroup, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER | SWT.FULL_SELECTION);
 		data = new GridData(GridData.FILL_HORIZONTAL);
 		data.horizontalSpan = 1;
 		data.verticalAlignment = SWT.BEGINNING;
 		data.heightHint = convertHeightInCharsToPixels(10);
 		viewer.getTable().setLayoutData(data);

 		Composite buttonContainer = new Composite(inlineGroup, SWT.NONE);
 		data = new GridData(GridData.FILL_VERTICAL);
 		buttonContainer.setLayoutData(data);
 		layout = new GridLayout();
 		layout.numColumns = 1;
 		layout.marginHeight = 0;
 		layout.marginWidth = 0;
 		buttonContainer.setLayout(layout);

 		fAddButton = new Button(buttonContainer, SWT.PUSH);
 		fAddButton.setText(HTMLUIMessages.Add_inline);
 		fAddButton.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				HTMLElementDialog dialog = new HTMLElementDialog(getShell());
 				dialog.setMessage(HTMLUIMessages.Elements_Dialog_message);
 				dialog.setTitle(HTMLUIMessages.Elements_Dialog_title);
 				dialog.setMultipleSelection(true);
 				dialog.setAllowDuplicates(false);
 				dialog.open();
 				Object[] result = dialog.getResult();
 				if (result != null) {
 					for (int i = 0; i < result.length; i++) {
 						fContentProvider.addElement(result[i].toString());
 					}
 					fViewer.refresh();
 				}
 			}
 		});
 		data = new GridData(GridData.FILL_HORIZONTAL | GridData.VERTICAL_ALIGN_BEGINNING);
 		int widthHint = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH);
 		data.widthHint = Math.max(widthHint, fAddButton.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x);
 		data.horizontalSpan = 1;
 		fAddButton.setLayoutData(data);

 		fRemoveButton = new Button(buttonContainer, SWT.PUSH);
 		fRemoveButton.setText(HTMLUIMessages.Remove_inline);
 		fRemoveButton.addSelectionListener(new SelectionAdapter() {
 			public void widgetSelected(SelectionEvent e) {
 				ISelection selection = viewer.getSelection();
 				if (selection != null && !selection.isEmpty() && selection instanceof StructuredSelection) {
 					Object[] remove = ((StructuredSelection) selection).toArray();
 					for (int i = 0; i < remove.length; i++) {
 						fContentProvider.removeElement(remove[i].toString());
 					}
 					if (remove.length > 0) {
 						fViewer.refresh();
 					}
 				}
 			}
 		});
 		data = new GridData(GridData.FILL_HORIZONTAL | GridData.VERTICAL_ALIGN_BEGINNING);
 		data.horizontalSpan = 1;
 		fRemoveButton.setLayoutData(data);

 		fViewer = viewer;
 		fContentProvider = new ContentProvider();
 		viewer.setContentProvider(fContentProvider);
 		viewer.setInput(this);
 		viewer.setComparator(new ViewerComparator(Collator.getInstance()));
 	}

 	protected void performDefaults() {
 		fTagNameUpper.setSelection(getModelPreferences().getDefaultInt(HTMLCorePreferenceNames.TAG_NAME_CASE) == HTMLCorePreferenceNames.UPPER);
 		fTagNameLower.setSelection(getModelPreferences().getDefaultInt(HTMLCorePreferenceNames.TAG_NAME_CASE) == HTMLCorePreferenceNames.LOWER);
 		fAttrNameUpper.setSelection(getModelPreferences().getDefaultInt(HTMLCorePreferenceNames.ATTR_NAME_CASE) == HTMLCorePreferenceNames.UPPER);
 		fAttrNameLower.setSelection(getModelPreferences().getDefaultInt(HTMLCorePreferenceNames.ATTR_NAME_CASE) == HTMLCorePreferenceNames.LOWER);

 		performDefaultsForFormattingGroup();

 		validateValues();
 		enableValues();

 		super.performDefaults();
 	}

 	private void performDefaultsForFormattingGroup() {
 		// Formatting
 		fLineWidthText.setText(getModelPreferences().getDefaultString(HTMLCorePreferenceNames.LINE_WIDTH));
 		fSplitMultiAttrs.setSelection(getModelPreferences().getDefaultBoolean(HTMLCorePreferenceNames.SPLIT_MULTI_ATTRS));
 		fAlignEndBracket.setSelection(getModelPreferences().getDefaultBoolean(HTMLCorePreferenceNames.ALIGN_END_BRACKET));
 		fClearAllBlankLines.setSelection(getModelPreferences().getDefaultBoolean(HTMLCorePreferenceNames.CLEAR_ALL_BLANK_LINES));

 		if (HTMLCorePreferenceNames.TAB.equals(getModelPreferences().getDefaultString(HTMLCorePreferenceNames.INDENTATION_CHAR))) {
 			fIndentUsingTabs.setSelection(true);
 			fIndentUsingSpaces.setSelection(false);
 		}
 		else {
 			fIndentUsingSpaces.setSelection(true);
 			fIndentUsingTabs.setSelection(false);
 		}
 		fIndentationSize.setSelection(getModelPreferences().getDefaultInt(HTMLCorePreferenceNames.INDENTATION_SIZE));

 		// Inline elements
 		fContentProvider.restoreDefaults();
 		fViewer.refresh();
 	}

 	protected void initializeValues() {
 		fTagNameUpper.setSelection(getModelPreferences().getInt(HTMLCorePreferenceNames.TAG_NAME_CASE) == HTMLCorePreferenceNames.UPPER);
 		fTagNameLower.setSelection(getModelPreferences().getInt(HTMLCorePreferenceNames.TAG_NAME_CASE) == HTMLCorePreferenceNames.LOWER);
 		fAttrNameUpper.setSelection(getModelPreferences().getInt(HTMLCorePreferenceNames.ATTR_NAME_CASE) == HTMLCorePreferenceNames.UPPER);
 		fAttrNameLower.setSelection(getModelPreferences().getInt(HTMLCorePreferenceNames.ATTR_NAME_CASE) == HTMLCorePreferenceNames.LOWER);

 		initializeValuesForFormattingGroup();
 	}

 	private void initializeValuesForFormattingGroup() {
 		// Formatting
 		fLineWidthText.setText(getModelPreferences().getString(HTMLCorePreferenceNames.LINE_WIDTH));
 		fSplitMultiAttrs.setSelection(getModelPreferences().getBoolean(HTMLCorePreferenceNames.SPLIT_MULTI_ATTRS));
 		fAlignEndBracket.setSelection(getModelPreferences().getBoolean(HTMLCorePreferenceNames.ALIGN_END_BRACKET));
 		fClearAllBlankLines.setSelection(getModelPreferences().getBoolean(HTMLCorePreferenceNames.CLEAR_ALL_BLANK_LINES));

 		if (HTMLCorePreferenceNames.TAB.equals(getModelPreferences().getString(HTMLCorePreferenceNames.INDENTATION_CHAR))) {
 			fIndentUsingTabs.setSelection(true);
 			fIndentUsingSpaces.setSelection(false);
 		}
 		else {
 			fIndentUsingSpaces.setSelection(true);
 			fIndentUsingTabs.setSelection(false);
 		}

 		fIndentationSize.setSelection(getModelPreferences().getInt(HTMLCorePreferenceNames.INDENTATION_SIZE));
 	}

 	protected void storeValues() {
 		if (fTagNameUpper.getSelection())
 			getModelPreferences().setValue(HTMLCorePreferenceNames.TAG_NAME_CASE, HTMLCorePreferenceNames.UPPER);
 		else
 			getModelPreferences().setValue(HTMLCorePreferenceNames.TAG_NAME_CASE, HTMLCorePreferenceNames.LOWER);
 		if (fAttrNameUpper.getSelection())
 			getModelPreferences().setValue(HTMLCorePreferenceNames.ATTR_NAME_CASE, HTMLCorePreferenceNames.UPPER);
 		else
 			getModelPreferences().setValue(HTMLCorePreferenceNames.ATTR_NAME_CASE, HTMLCorePreferenceNames.LOWER);

 		storeValuesForFormattingGroup();
 	}

 	private void storeValuesForFormattingGroup() {
 		// Formatting
 		getModelPreferences().setValue(HTMLCorePreferenceNames.LINE_WIDTH, fLineWidthText.getText());
 		getModelPreferences().setValue(HTMLCorePreferenceNames.SPLIT_MULTI_ATTRS, fSplitMultiAttrs.getSelection());
 		getModelPreferences().setValue(HTMLCorePreferenceNames.ALIGN_END_BRACKET, fAlignEndBracket.getSelection());
 		getModelPreferences().setValue(HTMLCorePreferenceNames.CLEAR_ALL_BLANK_LINES, fClearAllBlankLines.getSelection());

 		if (fIndentUsingTabs.getSelection()) {
 			getModelPreferences().setValue(HTMLCorePreferenceNames.INDENTATION_CHAR, HTMLCorePreferenceNames.TAB);
 		}
 		else {
 			getModelPreferences().setValue(HTMLCorePreferenceNames.INDENTATION_CHAR, HTMLCorePreferenceNames.SPACE);
 		}
 		getModelPreferences().setValue(HTMLCorePreferenceNames.INDENTATION_SIZE, fIndentationSize.getSelection());
 	}

 	public boolean performOk() {
 		boolean result = super.performOk();

 		doSavePreferenceStore();

 		// Save values from inline elements
 		HTMLFormattingUtil.exportToPreferences(fContentProvider.fElements.toArray());

 		return result;
 	}

 	protected Preferences getModelPreferences() {
 		return HTMLCorePlugin.getDefault().getPluginPreferences();
 	}

 	protected IPreferenceStore doGetPreferenceStore() {
 		return HTMLUIPlugin.getDefault().getPreferenceStore();
 	}

 	private void doSavePreferenceStore() {
 		HTMLUIPlugin.getDefault().savePluginPreferences(); // UI
 		HTMLCorePlugin.getDefault().savePluginPreferences(); // model
 	}

 	protected Control createContents(Composite parent) {
 		final Composite composite = super.createComposite(parent, 1);
 		PlatformUI.getWorkbench().getHelpSystem().setHelp(composite, IHelpContextIds.HTML_PREFWEBX_SOURCE_HELPID);

 		new PreferenceLinkArea(composite, SWT.WRAP | SWT.MULTI, "org.eclipse.wst.sse.ui.preferences.editor", HTMLUIMessages._UI_STRUCTURED_TEXT_EDITOR_PREFS_LINK,//$NON-NLS-1$
 					(IWorkbenchPreferenceContainer) getContainer(), null).getControl().setLayoutData(GridDataFactory.fillDefaults().hint(150, SWT.DEFAULT).create());
 		new Label(composite, SWT.NONE).setLayoutData(GridDataFactory.swtDefaults().create());

 		createContentsForFormattingGroup(composite);
 		createContentsForPreferredCaseGroup(composite, 2);
 		setSize(composite);
 		loadPreferences();

 		return composite;
 	}

 	protected void validateValues() {
 		boolean isError = false;
 		String widthText = null;

 		if (fLineWidthText != null) {
 			try {
 				widthText = fLineWidthText.getText();
 				int formattingLineWidth = Integer.parseInt(widthText);
 				if ((formattingLineWidth < WIDTH_VALIDATION_LOWER_LIMIT) || (formattingLineWidth > WIDTH_VALIDATION_UPPER_LIMIT)) {
 					throw new NumberFormatException();
 				}
 			}
 			catch (NumberFormatException nfexc) {
 				setInvalidInputMessage(widthText);
 				setValid(false);
 				isError = true;
 			}
 		}

 		int indentSize = 0;
 		if (fIndentationSize != null) {
 			try {
 				indentSize = fIndentationSize.getSelection();
 				if ((indentSize < MIN_INDENTATION_SIZE) || (indentSize > MAX_INDENTATION_SIZE)) {
 					throw new NumberFormatException();
 				}
 			}
 			catch (NumberFormatException nfexc) {
 				setInvalidInputMessage(Integer.toString(indentSize));
 				setValid(false);
 				isError = true;
 			}
 		}

 		if (!isError) {
 			setErrorMessage(null);
 			setValid(true);
 		}
 	}

 	private static class HTMLElementDialog extends ElementListSelectionDialog {
 		public HTMLElementDialog(Shell parent) {
 			super(parent,  new ILabelProvider() {

 				public void removeListener(ILabelProviderListener listener) {
 				}

 				public boolean isLabelProperty(Object element, String property) {
 					return false;
 				}

 				public void dispose() {
 				}

 				public void addListener(ILabelProviderListener listener) {
 				}

 				public String getText(Object element) {
 					return element.toString();
 				}

 				public Image getImage(Object element) {
 					return null;
 				}
 			});
 		}

 		public int open() {
 			final List list = new ArrayList();
 			IRunnableContext context = PlatformUI.getWorkbench().getProgressService();
 			IRunnableWithProgress runnable= new IRunnableWithProgress() {
 				public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
 					if (monitor == null) {
 						monitor = new NullProgressMonitor();
 					}
 					monitor.beginTask("Searching for known elements", 1); //$NON-NLS-1$
 					try {
 						if (monitor.isCanceled()) {
 							throw new InterruptedException();
 						}
 						CMNamedNodeMap map = HTMLCMDocumentFactory.getCMDocument(CMDocType.HTML5_DOC_TYPE).getElements();
 						Iterator it = map.iterator();
 						while (it.hasNext()) {
 							CMNode node = (CMNode) it.next();
 							if (!node.getNodeName().startsWith("SSI:")) { //$NON-NLS-1$
 								list.add(node.getNodeName().toLowerCase(Locale.US));
 							}
 							monitor.worked(1);
 						}
 					}
 					finally {
 						monitor.done();
 					}
 				}
 			};
 			try {
 				context.run(true, true, runnable);
 			}
 			catch (InvocationTargetException e) {
 				return CANCEL;
 			}
 			catch (InterruptedException e) {
 				return CANCEL;
 			}
 			setElements(list.toArray());
 			return super.open();
 		}
 	}

 	private class ContentProvider implements IStructuredContentProvider {

 		private List fElements;

 		public ContentProvider() {
 			fElements = new ArrayList(Arrays.asList(HTMLFormattingUtil.getInlineElements()));
 		}

 		public void dispose() {
 		}

 		public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
 		}

 		public void addElement(String name) {
 			if (!fElements.contains(name))
 				fElements.add(name);
 		}

 		public void removeElement(String name) {
 			fElements.remove(name);
 		}

 		public Object[] getElements(Object inputElement) {
 			return fElements.toArray();
 		}

 		public void restoreDefaults() {
 			fElements = new ArrayList(Arrays.asList(HTMLFormattingUtil.getDefaultInlineElements()));
 		}

 	}
 }
	/*******************************************************************************
	* Copyright (c) 2004, 2010 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.html.ui.internal.preferences.ui;

	import java.lang.reflect.InvocationTargetException;
	import java.util.ArrayList;
	import java.util.Arrays;
	import java.util.Iterator;
	import java.util.List;
	import java.util.Locale;

	import org.eclipse.core.runtime.IProgressMonitor;
	import org.eclipse.core.runtime.NullProgressMonitor;
	import org.eclipse.core.runtime.Preferences;
	import org.eclipse.jface.dialogs.IDialogConstants;
	import org.eclipse.jface.layout.GridDataFactory;
	import org.eclipse.jface.operation.IRunnableContext;
	import org.eclipse.jface.operation.IRunnableWithProgress;
	import org.eclipse.jface.preference.IPreferenceStore;
	import org.eclipse.jface.viewers.ILabelProvider;
	import org.eclipse.jface.viewers.ILabelProviderListener;
	import org.eclipse.jface.viewers.ISelection;
	import org.eclipse.jface.viewers.IStructuredContentProvider;
	import org.eclipse.jface.viewers.StructuredSelection;
	import org.eclipse.jface.viewers.TableViewer;
	import org.eclipse.jface.viewers.Viewer;
	import org.eclipse.jface.viewers.ViewerComparator;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.graphics.Image;
	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.Group;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Shell;
	import org.eclipse.swt.widgets.Spinner;
	import org.eclipse.swt.widgets.Text;
	import org.eclipse.ui.PlatformUI;
	import org.eclipse.ui.dialogs.ElementListSelectionDialog;
	import org.eclipse.ui.dialogs.PreferenceLinkArea;
	import org.eclipse.ui.preferences.IWorkbenchPreferenceContainer;
	import org.eclipse.wst.html.core.internal.HTMLCorePlugin;
	import org.eclipse.wst.html.core.internal.contentmodel.HTMLCMDocumentFactory;
	import org.eclipse.wst.html.core.internal.format.HTMLFormattingUtil;
	import org.eclipse.wst.html.core.internal.preferences.HTMLCorePreferenceNames;
	import org.eclipse.wst.html.ui.internal.HTMLUIMessages;
	import org.eclipse.wst.html.ui.internal.HTMLUIPlugin;
	import org.eclipse.wst.html.ui.internal.editor.IHelpContextIds;
	import org.eclipse.wst.sse.ui.internal.preferences.ui.AbstractPreferencePage;
	import org.eclipse.wst.xml.core.internal.contentmodel.CMNamedNodeMap;
	import org.eclipse.wst.xml.core.internal.contentmodel.CMNode;
	import org.eclipse.wst.xml.core.internal.provisional.contentmodel.CMDocType;

	import com.ibm.icu.text.Collator;

	public class HTMLSourcePreferencePage extends AbstractPreferencePage {
	private Button fTagNameUpper = null;
	private Button fTagNameLower = null;
	private Button fAttrNameUpper = null;
	private Button fAttrNameLower = null;

	private final int MIN_INDENTATION_SIZE = 0;
	private final int MAX_INDENTATION_SIZE = 16;

	private Button fClearAllBlankLines;

	// Formatting
	private Text fLineWidthText;
	private Button fSplitMultiAttrs;
	private Button fAlignEndBracket;
	private Button fIndentUsingTabs;
	private Button fIndentUsingSpaces;
	private Spinner fIndentationSize;

	private Button fAddButton;
	private Button fRemoveButton;

	private TableViewer fViewer;

	private ContentProvider fContentProvider;

	private Composite createContentsForPreferredCaseGroup(Composite parent, int columnSpan) {
	Group caseGroup = createGroup(parent, columnSpan);
	caseGroup.setText(HTMLUIMessages.Preferred_markup_case_UI_);

	// d257064 need to associate group w/ radio buttons so radio buttons
	// header can be read
	Group tagNameGroup = createGroup(caseGroup, 1);
	tagNameGroup.setText(HTMLUIMessages.Tag_names__UI_);
	fTagNameUpper = createRadioButton(tagNameGroup, HTMLUIMessages.Tag_names_Upper_case_UI_);
	fTagNameLower = createRadioButton(tagNameGroup, HTMLUIMessages.Tag_names_Lower_case_UI_);

	// d257064 need to associate group w/ radio buttons so radio buttons
	// header can be read
	Group attrNameGroup = createGroup(caseGroup, 1);
	attrNameGroup.setText(HTMLUIMessages.Attribute_names__UI_);
	fAttrNameUpper = createRadioButton(attrNameGroup, HTMLUIMessages.Attribute_names_Upper_case_UI_);
	fAttrNameLower = createRadioButton(attrNameGroup, HTMLUIMessages.Attribute_names_Lower_case_UI_);

	return parent;

	}

	private void createContentsForFormattingGroup(Composite parent) {
	Group formattingGroup = createGroup(parent, 2);
	formattingGroup.setText(HTMLUIMessages.Formatting_UI_);

	createLabel(formattingGroup, HTMLUIMessages.Line_width__UI_);
	fLineWidthText = new Text(formattingGroup, SWT.SINGLE \| SWT.BORDER);
	GridData gData = new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING \| GridData.BEGINNING);
	gData.widthHint = 25;
	fLineWidthText.setLayoutData(gData);
	fLineWidthText.addModifyListener(this);

	fSplitMultiAttrs = createCheckBox(formattingGroup, HTMLUIMessages.Split_multiple_attributes);
	((GridData) fSplitMultiAttrs.getLayoutData()).horizontalSpan = 2;
	fAlignEndBracket = createCheckBox(formattingGroup, HTMLUIMessages.Align_final_bracket);
	((GridData) fAlignEndBracket.getLayoutData()).horizontalSpan = 2;
	fClearAllBlankLines = createCheckBox(formattingGroup, HTMLUIMessages.Clear_all_blank_lines_UI_);
	((GridData) fClearAllBlankLines.getLayoutData()).horizontalSpan = 2;

	// [269224] - Place the indent controls in their own composite for proper tab ordering
	Composite indentComposite = createComposite(formattingGroup, 1);
	((GridData) indentComposite.getLayoutData()).horizontalSpan = 2;
	((GridLayout) indentComposite.getLayout()).marginWidth = 0;
	((GridLayout) indentComposite.getLayout()).marginHeight = 0;

	fIndentUsingTabs = createRadioButton(indentComposite, HTMLUIMessages.Indent_using_tabs);
	((GridData) fIndentUsingTabs.getLayoutData()).horizontalSpan = 1;

	fIndentUsingSpaces = createRadioButton(indentComposite, HTMLUIMessages.Indent_using_spaces);
	((GridData) fIndentUsingSpaces.getLayoutData()).horizontalSpan = 1;

	createLabel(formattingGroup, HTMLUIMessages.Indentation_size);
	fIndentationSize = new Spinner(formattingGroup, SWT.READ_ONLY \| SWT.BORDER);
	GridData gd = new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING);
	fIndentationSize.setLayoutData(gd);
	fIndentationSize.setToolTipText(HTMLUIMessages.Indentation_size_tip);
	fIndentationSize.setMinimum(MIN_INDENTATION_SIZE);
	fIndentationSize.setMaximum(MAX_INDENTATION_SIZE);
	fIndentationSize.setIncrement(1);
	fIndentationSize.setPageIncrement(4);
	fIndentationSize.addModifyListener(this);

	GridData data;


	Composite inlineGroup = new Composite(formattingGroup, SWT.NONE);
	GridLayout layout = new GridLayout();
	layout.numColumns = 2;
	layout.marginWidth = 0;
	layout.marginHeight = 0;
	inlineGroup.setLayout(layout);

	data = new GridData(GridData.FILL_BOTH);
	data.horizontalSpan = 2;
	inlineGroup.setLayoutData(data);

	Label label = createLabel(inlineGroup, HTMLUIMessages.Inline_elements_table_label);
	data = new GridData(GridData.FILL_HORIZONTAL);
	data.horizontalSpan = 2;
	label.setLayoutData(data);

	final TableViewer viewer = new TableViewer(inlineGroup, SWT.MULTI \| SWT.H_SCROLL \| SWT.V_SCROLL \| SWT.BORDER \| SWT.FULL_SELECTION);
	data = new GridData(GridData.FILL_HORIZONTAL);
	data.horizontalSpan = 1;
	data.verticalAlignment = SWT.BEGINNING;
	data.heightHint = convertHeightInCharsToPixels(10);
	viewer.getTable().setLayoutData(data);

	Composite buttonContainer = new Composite(inlineGroup, SWT.NONE);
	data = new GridData(GridData.FILL_VERTICAL);
	buttonContainer.setLayoutData(data);
	layout = new GridLayout();
	layout.numColumns = 1;
	layout.marginHeight = 0;
	layout.marginWidth = 0;
	buttonContainer.setLayout(layout);

	fAddButton = new Button(buttonContainer, SWT.PUSH);
	fAddButton.setText(HTMLUIMessages.Add_inline);
	fAddButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	HTMLElementDialog dialog = new HTMLElementDialog(getShell());
	dialog.setMessage(HTMLUIMessages.Elements_Dialog_message);
	dialog.setTitle(HTMLUIMessages.Elements_Dialog_title);
	dialog.setMultipleSelection(true);
	dialog.setAllowDuplicates(false);
	dialog.open();
	Object[] result = dialog.getResult();
	if (result != null) {
	for (int i = 0; i < result.length; i++) {
	fContentProvider.addElement(result[i].toString());
	}
	fViewer.refresh();
	}
	}
	});
	data = new GridData(GridData.FILL_HORIZONTAL \| GridData.VERTICAL_ALIGN_BEGINNING);
	int widthHint = convertHorizontalDLUsToPixels(IDialogConstants.BUTTON_WIDTH);
	data.widthHint = Math.max(widthHint, fAddButton.computeSize(SWT.DEFAULT, SWT.DEFAULT, true).x);
	data.horizontalSpan = 1;
	fAddButton.setLayoutData(data);

	fRemoveButton = new Button(buttonContainer, SWT.PUSH);
	fRemoveButton.setText(HTMLUIMessages.Remove_inline);
	fRemoveButton.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	ISelection selection = viewer.getSelection();
	if (selection != null && !selection.isEmpty() && selection instanceof StructuredSelection) {
	Object[] remove = ((StructuredSelection) selection).toArray();
	for (int i = 0; i < remove.length; i++) {
	fContentProvider.removeElement(remove[i].toString());
	}
	if (remove.length > 0) {
	fViewer.refresh();
	}
	}
	}
	});
	data = new GridData(GridData.FILL_HORIZONTAL \| GridData.VERTICAL_ALIGN_BEGINNING);
	data.horizontalSpan = 1;
	fRemoveButton.setLayoutData(data);

	fViewer = viewer;
	fContentProvider = new ContentProvider();
	viewer.setContentProvider(fContentProvider);
	viewer.setInput(this);
	viewer.setComparator(new ViewerComparator(Collator.getInstance()));
	}

	protected void performDefaults() {
	fTagNameUpper.setSelection(getModelPreferences().getDefaultInt(HTMLCorePreferenceNames.TAG_NAME_CASE) == HTMLCorePreferenceNames.UPPER);
	fTagNameLower.setSelection(getModelPreferences().getDefaultInt(HTMLCorePreferenceNames.TAG_NAME_CASE) == HTMLCorePreferenceNames.LOWER);
	fAttrNameUpper.setSelection(getModelPreferences().getDefaultInt(HTMLCorePreferenceNames.ATTR_NAME_CASE) == HTMLCorePreferenceNames.UPPER);
	fAttrNameLower.setSelection(getModelPreferences().getDefaultInt(HTMLCorePreferenceNames.ATTR_NAME_CASE) == HTMLCorePreferenceNames.LOWER);

	performDefaultsForFormattingGroup();

	validateValues();
	enableValues();

	super.performDefaults();
	}

	private void performDefaultsForFormattingGroup() {
	// Formatting
	fLineWidthText.setText(getModelPreferences().getDefaultString(HTMLCorePreferenceNames.LINE_WIDTH));
	fSplitMultiAttrs.setSelection(getModelPreferences().getDefaultBoolean(HTMLCorePreferenceNames.SPLIT_MULTI_ATTRS));
	fAlignEndBracket.setSelection(getModelPreferences().getDefaultBoolean(HTMLCorePreferenceNames.ALIGN_END_BRACKET));
	fClearAllBlankLines.setSelection(getModelPreferences().getDefaultBoolean(HTMLCorePreferenceNames.CLEAR_ALL_BLANK_LINES));

	if (HTMLCorePreferenceNames.TAB.equals(getModelPreferences().getDefaultString(HTMLCorePreferenceNames.INDENTATION_CHAR))) {
	fIndentUsingTabs.setSelection(true);
	fIndentUsingSpaces.setSelection(false);
	}
	else {
	fIndentUsingSpaces.setSelection(true);
	fIndentUsingTabs.setSelection(false);
	}
	fIndentationSize.setSelection(getModelPreferences().getDefaultInt(HTMLCorePreferenceNames.INDENTATION_SIZE));

	// Inline elements
	fContentProvider.restoreDefaults();
	fViewer.refresh();
	}

	protected void initializeValues() {
	fTagNameUpper.setSelection(getModelPreferences().getInt(HTMLCorePreferenceNames.TAG_NAME_CASE) == HTMLCorePreferenceNames.UPPER);
	fTagNameLower.setSelection(getModelPreferences().getInt(HTMLCorePreferenceNames.TAG_NAME_CASE) == HTMLCorePreferenceNames.LOWER);
	fAttrNameUpper.setSelection(getModelPreferences().getInt(HTMLCorePreferenceNames.ATTR_NAME_CASE) == HTMLCorePreferenceNames.UPPER);
	fAttrNameLower.setSelection(getModelPreferences().getInt(HTMLCorePreferenceNames.ATTR_NAME_CASE) == HTMLCorePreferenceNames.LOWER);

	initializeValuesForFormattingGroup();
	}

	private void initializeValuesForFormattingGroup() {
	// Formatting
	fLineWidthText.setText(getModelPreferences().getString(HTMLCorePreferenceNames.LINE_WIDTH));
	fSplitMultiAttrs.setSelection(getModelPreferences().getBoolean(HTMLCorePreferenceNames.SPLIT_MULTI_ATTRS));
	fAlignEndBracket.setSelection(getModelPreferences().getBoolean(HTMLCorePreferenceNames.ALIGN_END_BRACKET));
	fClearAllBlankLines.setSelection(getModelPreferences().getBoolean(HTMLCorePreferenceNames.CLEAR_ALL_BLANK_LINES));

	if (HTMLCorePreferenceNames.TAB.equals(getModelPreferences().getString(HTMLCorePreferenceNames.INDENTATION_CHAR))) {
	fIndentUsingTabs.setSelection(true);
	fIndentUsingSpaces.setSelection(false);
	}
	else {
	fIndentUsingSpaces.setSelection(true);
	fIndentUsingTabs.setSelection(false);
	}

	fIndentationSize.setSelection(getModelPreferences().getInt(HTMLCorePreferenceNames.INDENTATION_SIZE));
	}

	protected void storeValues() {
	if (fTagNameUpper.getSelection())
	getModelPreferences().setValue(HTMLCorePreferenceNames.TAG_NAME_CASE, HTMLCorePreferenceNames.UPPER);
	else
	getModelPreferences().setValue(HTMLCorePreferenceNames.TAG_NAME_CASE, HTMLCorePreferenceNames.LOWER);
	if (fAttrNameUpper.getSelection())
	getModelPreferences().setValue(HTMLCorePreferenceNames.ATTR_NAME_CASE, HTMLCorePreferenceNames.UPPER);
	else
	getModelPreferences().setValue(HTMLCorePreferenceNames.ATTR_NAME_CASE, HTMLCorePreferenceNames.LOWER);

	storeValuesForFormattingGroup();
	}

	private void storeValuesForFormattingGroup() {
	// Formatting
	getModelPreferences().setValue(HTMLCorePreferenceNames.LINE_WIDTH, fLineWidthText.getText());
	getModelPreferences().setValue(HTMLCorePreferenceNames.SPLIT_MULTI_ATTRS, fSplitMultiAttrs.getSelection());
	getModelPreferences().setValue(HTMLCorePreferenceNames.ALIGN_END_BRACKET, fAlignEndBracket.getSelection());
	getModelPreferences().setValue(HTMLCorePreferenceNames.CLEAR_ALL_BLANK_LINES, fClearAllBlankLines.getSelection());

	if (fIndentUsingTabs.getSelection()) {
	getModelPreferences().setValue(HTMLCorePreferenceNames.INDENTATION_CHAR, HTMLCorePreferenceNames.TAB);
	}
	else {
	getModelPreferences().setValue(HTMLCorePreferenceNames.INDENTATION_CHAR, HTMLCorePreferenceNames.SPACE);
	}
	getModelPreferences().setValue(HTMLCorePreferenceNames.INDENTATION_SIZE, fIndentationSize.getSelection());
	}

	public boolean performOk() {
	boolean result = super.performOk();

	doSavePreferenceStore();

	// Save values from inline elements
	HTMLFormattingUtil.exportToPreferences(fContentProvider.fElements.toArray());

	return result;
	}

	protected Preferences getModelPreferences() {
	return HTMLCorePlugin.getDefault().getPluginPreferences();
	}

	protected IPreferenceStore doGetPreferenceStore() {
	return HTMLUIPlugin.getDefault().getPreferenceStore();
	}

	private void doSavePreferenceStore() {
	HTMLUIPlugin.getDefault().savePluginPreferences(); // UI
	HTMLCorePlugin.getDefault().savePluginPreferences(); // model
	}

	protected Control createContents(Composite parent) {
	final Composite composite = super.createComposite(parent, 1);
	PlatformUI.getWorkbench().getHelpSystem().setHelp(composite, IHelpContextIds.HTML_PREFWEBX_SOURCE_HELPID);

	new PreferenceLinkArea(composite, SWT.WRAP \| SWT.MULTI, "org.eclipse.wst.sse.ui.preferences.editor", HTMLUIMessages._UI_STRUCTURED_TEXT_EDITOR_PREFS_LINK,//$NON-NLS-1$
	(IWorkbenchPreferenceContainer) getContainer(), null).getControl().setLayoutData(GridDataFactory.fillDefaults().hint(150, SWT.DEFAULT).create());
	new Label(composite, SWT.NONE).setLayoutData(GridDataFactory.swtDefaults().create());

	createContentsForFormattingGroup(composite);
	createContentsForPreferredCaseGroup(composite, 2);
	setSize(composite);
	loadPreferences();

	return composite;
	}

	protected void validateValues() {
	boolean isError = false;
	String widthText = null;

	if (fLineWidthText != null) {
	try {
	widthText = fLineWidthText.getText();
	int formattingLineWidth = Integer.parseInt(widthText);
	if ((formattingLineWidth < WIDTH_VALIDATION_LOWER_LIMIT) \|\| (formattingLineWidth > WIDTH_VALIDATION_UPPER_LIMIT)) {
	throw new NumberFormatException();
	}
	}
	catch (NumberFormatException nfexc) {
	setInvalidInputMessage(widthText);
	setValid(false);
	isError = true;
	}
	}

	int indentSize = 0;
	if (fIndentationSize != null) {
	try {
	indentSize = fIndentationSize.getSelection();
	if ((indentSize < MIN_INDENTATION_SIZE) \|\| (indentSize > MAX_INDENTATION_SIZE)) {
	throw new NumberFormatException();
	}
	}
	catch (NumberFormatException nfexc) {
	setInvalidInputMessage(Integer.toString(indentSize));
	setValid(false);
	isError = true;
	}
	}

	if (!isError) {
	setErrorMessage(null);
	setValid(true);
	}
	}

	private static class HTMLElementDialog extends ElementListSelectionDialog {
	public HTMLElementDialog(Shell parent) {
	super(parent, new ILabelProvider() {

	public void removeListener(ILabelProviderListener listener) {
	}

	public boolean isLabelProperty(Object element, String property) {
	return false;
	}

	public void dispose() {
	}

	public void addListener(ILabelProviderListener listener) {
	}

	public String getText(Object element) {
	return element.toString();
	}

	public Image getImage(Object element) {
	return null;
	}
	});
	}

	public int open() {
	final List list = new ArrayList();
	IRunnableContext context = PlatformUI.getWorkbench().getProgressService();
	IRunnableWithProgress runnable= new IRunnableWithProgress() {
	public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
	if (monitor == null) {
	monitor = new NullProgressMonitor();
	}
	monitor.beginTask("Searching for known elements", 1); //$NON-NLS-1$
	try {
	if (monitor.isCanceled()) {
	throw new InterruptedException();
	}
	CMNamedNodeMap map = HTMLCMDocumentFactory.getCMDocument(CMDocType.HTML5_DOC_TYPE).getElements();
	Iterator it = map.iterator();
	while (it.hasNext()) {
	CMNode node = (CMNode) it.next();
	if (!node.getNodeName().startsWith("SSI:")) { //$NON-NLS-1$
	list.add(node.getNodeName().toLowerCase(Locale.US));
	}
	monitor.worked(1);
	}
	}
	finally {
	monitor.done();
	}
	}
	};
	try {
	context.run(true, true, runnable);
	}
	catch (InvocationTargetException e) {
	return CANCEL;
	}
	catch (InterruptedException e) {
	return CANCEL;
	}
	setElements(list.toArray());
	return super.open();
	}
	}

	private class ContentProvider implements IStructuredContentProvider {

	private List fElements;

	public ContentProvider() {
	fElements = new ArrayList(Arrays.asList(HTMLFormattingUtil.getInlineElements()));
	}

	public void dispose() {
	}

	public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
	}

	public void addElement(String name) {
	if (!fElements.contains(name))
	fElements.add(name);
	}

	public void removeElement(String name) {
	fElements.remove(name);
	}

	public Object[] getElements(Object inputElement) {
	return fElements.toArray();
	}

	public void restoreDefaults() {
	fElements = new ArrayList(Arrays.asList(HTMLFormattingUtil.getDefaultInlineElements()));
	}

	}
	}