net.sourceforge.phpeclipse.webbrowser/src/net/sourceforge/phpeclipse/webbrowser/internal/BrowserTableComposite.java

   1 /**********************************************************************
   2  * Copyright (c) 2003 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v10.html
   7  *
   8  * Contributors:
   9  *    IBM - Initial API and implementation
  10  **********************************************************************/
  11 package net.sourceforge.phpeclipse.webbrowser.internal;
  12
  13 import java.util.Iterator;
  14
  15 import net.sourceforge.phpeclipse.webbrowser.IExternalWebBrowser;
  16 import net.sourceforge.phpeclipse.webbrowser.IExternalWebBrowserWorkingCopy;
  17 import net.sourceforge.phpeclipse.webbrowser.IInternalWebBrowser;
  18 import net.sourceforge.phpeclipse.webbrowser.IInternalWebBrowserWorkingCopy;
  19 import net.sourceforge.phpeclipse.webbrowser.IWebBrowser;
  20
  21 import org.eclipse.jface.viewers.CheckStateChangedEvent;
  22 import org.eclipse.jface.viewers.CheckboxTableViewer;
  23 import org.eclipse.jface.viewers.ColumnWeightData;
  24 import org.eclipse.jface.viewers.ICheckStateListener;
  25 import org.eclipse.jface.viewers.ISelection;
  26 import org.eclipse.jface.viewers.ISelectionChangedListener;
  27 import org.eclipse.jface.viewers.IStructuredSelection;
  28 import org.eclipse.jface.viewers.SelectionChangedEvent;
  29 import org.eclipse.jface.viewers.TableLayout;
  30 import org.eclipse.jface.window.Window;
  31 import org.eclipse.swt.SWT;
  32 import org.eclipse.swt.events.SelectionAdapter;
  33 import org.eclipse.swt.events.SelectionEvent;
  34 import org.eclipse.swt.layout.GridData;
  35 import org.eclipse.swt.layout.GridLayout;
  36 import org.eclipse.swt.widgets.Button;
  37 import org.eclipse.swt.widgets.Composite;
  38 import org.eclipse.swt.widgets.Label;
  39 import org.eclipse.swt.widgets.Table;
  40 import org.eclipse.swt.widgets.TableColumn;
  41 import org.eclipse.swt.widgets.TableItem;
  42 import org.eclipse.ui.help.WorkbenchHelp;
  43 /**
  44  *
  45  */
  46 public class BrowserTableComposite extends Composite {
  47         protected Table table;
  48         protected CheckboxTableViewer tableViewer;
  49         protected Button edit;
  50         protected Button remove;
  51         protected Button search;
  52         protected IWebBrowser selection;
  53
  54         protected Label location;
  55         protected Label parameters;
  56
  57         public BrowserTableComposite(Composite parent, int style) {
  58                 super(parent, style);
  59                 createWidgets();
  60         }
  61
  62         protected void createWidgets() {
  63                 GridLayout layout = new GridLayout();
  64                 layout.horizontalSpacing = 5;
  65                 layout.verticalSpacing = 5;
  66                 layout.marginWidth = 0;
  67                 layout.marginHeight = 0;
  68                 layout.numColumns = 2;
  69                 setLayout(layout);
  70
  71                 GridData data = new GridData(GridData.FILL_BOTH);
  72                 setLayoutData(data);
  73
  74                 Label label = new Label(this, SWT.NONE);
  75                 label.setText(WebBrowserUIPlugin.getResource("%browserList"));
  76                 data = new GridData(GridData.FILL_HORIZONTAL | GridData.VERTICAL_ALIGN_CENTER);
  77                 data.horizontalSpan = 2;
  78                 label.setLayoutData(data);
  79
  80                 table = new Table(this, SWT.CHECK | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL | SWT.SINGLE | SWT.FULL_SELECTION);
  81                 data = new GridData(GridData.FILL_HORIZONTAL | GridData.VERTICAL_ALIGN_FILL);
  82                 data.widthHint = 300;
  83                 table.setLayoutData(data);
  84                 table.setHeaderVisible(false);
  85                 table.setLinesVisible(false);
  86
  87                 TableLayout tableLayout = new TableLayout();
  88                 new TableColumn(table, SWT.NONE);
  89
  90                 tableLayout.addColumnData(new ColumnWeightData(100));
  91
  92                 table.setLayout(tableLayout);
  93
  94                 tableViewer = new CheckboxTableViewer(table);
  95
  96                 tableViewer.setContentProvider(new BrowserContentProvider());
  97                 tableViewer.setLabelProvider(new BrowserTableLabelProvider());
  98
  99                 tableViewer.setInput("root");
 100
 101                 // uncheck any other elements that might be checked and leave only the element checked to
 102                 // remain checked since one can only chose one brower at a time to be current.
 103                 tableViewer.addCheckStateListener(new ICheckStateListener() {
 104                         public void checkStateChanged(CheckStateChangedEvent e) {
 105                                 checkNewDefaultBrowser(e.getElement());
 106                                 IWebBrowser browser = (IWebBrowser) e.getElement();
 107                                 BrowserManager.getInstance().setCurrentWebBrowser(browser);
 108
 109                                 // if no other browsers are checked, don't allow the single one currently
 110                                 // checked to become unchecked, and lose a current browser. That is, don't
 111                                 // permit unchecking if no other item is checked which is supposed to be the case.
 112                                 Object[] obj = tableViewer.getCheckedElements();
 113                            if (obj.length == 0)
 114                                 tableViewer.setChecked(e.getElement(), true);
 115                         }
 116                 });
 117
 118                 // set a default, checked browser based on the current browser. If there is not a
 119                 // current browser, but the first item exists, use that instead.
 120                 // This will work currently until workbench shutdown, because current browser is not yet persisted.
 121                 IWebBrowser browser = BrowserManager.getInstance().getCurrentWebBrowser();
 122                 if (browser != null)
 123                         tableViewer.setChecked(browser, true);
 124                 else {
 125                         Object obj = tableViewer.getElementAt(0);
 126                         if (obj != null)
 127                                 tableViewer.setChecked(obj, true);
 128                 }
 129
 130                 tableViewer.addSelectionChangedListener(new ISelectionChangedListener() {
 131                         public void selectionChanged(SelectionChangedEvent event) {
 132                                 Object obj = getSelection(event.getSelection());
 133
 134                                 if (obj instanceof IInternalWebBrowser) {
 135                                         selection = (IInternalWebBrowser) obj;
 136                                         remove.setEnabled(false);
 137                                         edit.setEnabled(true);
 138                                 } else if (obj instanceof IExternalWebBrowser) {
 139                                         selection = (IExternalWebBrowser) obj;
 140                                         remove.setEnabled(true);
 141                                         edit.setEnabled(true);
 142                                 } else
 143                                         selection = null;
 144
 145                                 if (selection == null) {
 146                                         edit.setEnabled(false);
 147                                         remove.setEnabled(false);
 148                                 }
 149                         }
 150                 });
 151
 152                 Composite buttonComp = new Composite(this, SWT.NONE);
 153                 layout = new GridLayout();
 154                 layout.horizontalSpacing = 0;
 155                 layout.verticalSpacing = 5;
 156                 layout.marginWidth = 0;
 157                 layout.marginHeight = 0;
 158                 layout.numColumns = 1;
 159                 buttonComp.setLayout(layout);
 160                 data = new GridData(GridData.HORIZONTAL_ALIGN_END | GridData.VERTICAL_ALIGN_FILL);
 161                 buttonComp.setLayoutData(data);
 162
 163                 Button add = SWTUtil.createButton(buttonComp, WebBrowserUIPlugin.getResource("%add"));
 164                 add.addSelectionListener(new SelectionAdapter() {
 165                         public void widgetSelected(SelectionEvent e) {
 166                                 ExternalBrowserDialog dialog = new ExternalBrowserDialog(getShell());
 167                                 if (dialog.open() == Window.CANCEL)
 168                                         return;
 169                                 tableViewer.refresh();
 170                         }
 171                 });
 172
 173                 edit = SWTUtil.createButton(buttonComp, WebBrowserUIPlugin.getResource("%edit"));
 174                 edit.addSelectionListener(new SelectionAdapter() {
 175                         public void widgetSelected(SelectionEvent e) {
 176                                 IWebBrowser browser2 = getSelectedWebBrowser();
 177
 178                                 if (browser2 instanceof IInternalWebBrowser) {
 179                                         IInternalWebBrowserWorkingCopy wc = ((IInternalWebBrowser) browser2).getWorkingCopy();
 180                                         InternalBrowserDialog dialog = new InternalBrowserDialog(getShell(), wc);
 181                                         if (dialog.open() != Window.CANCEL) {
 182                                                 try {
 183                                                         tableViewer.refresh(wc.save());
 184                                                 } catch (Exception ex) { }
 185                                         }
 186                                 }
 187                                 else if(browser2 instanceof IExternalWebBrowser) {
 188                                         IExternalWebBrowserWorkingCopy wc = ((IExternalWebBrowser) browser2).getWorkingCopy();
 189                                         ExternalBrowserDialog dialog = new ExternalBrowserDialog(getShell(), wc);
 190                                         if (dialog.open() != Window.CANCEL) {
 191                                                 try {
 192                                                         tableViewer.refresh(wc.save());
 193                                                 } catch (Exception ex) { }
 194                                         }
 195                                 }
 196                    }
 197                 });
 198                 edit.setEnabled(false);
 199
 200                 remove = SWTUtil.createButton(buttonComp, WebBrowserUIPlugin.getResource("%remove"));
 201                 remove.addSelectionListener(new SelectionAdapter() {
 202                         public void widgetSelected(SelectionEvent e) {
 203                                 IWebBrowser browser2 = getSelectedWebBrowser();
 204                                 try {
 205                                         if (browser2 instanceof IInternalWebBrowser){
 206                                                 remove.setEnabled(false);
 207                                                 return; // nothing else possible to do
 208                     }
 209                                         else if(browser2 instanceof IExternalWebBrowser) {
 210                                                 remove.setEnabled(true);
 211                        ((IExternalWebBrowser) browser2).delete();
 212
 213                                                 tableViewer.remove(browser2);
 214
 215                                                 // need here to ensure that if the item deleted was checked, ie, was
 216                                                 // the current browser, that the new current browser will be the first in the
 217                                                 // list, typically, the internal browser, which cannot be deleted, and be current.
 218                                                 if(((IExternalWebBrowser) browser2) == BrowserManager.getInstance().getCurrentWebBrowser()){
 219                                                         Object obj = tableViewer.getElementAt(0);
 220                                                                 if(obj != null){
 221                                                                         BrowserManager.getInstance().setCurrentWebBrowser((InternalWebBrowser)obj);
 222                                                                         tableViewer.setChecked(obj, true);
 223                                                                 }
 224                                                 }
 225                                         }
 226                                 } catch (Exception ex) { }
 227                         }
 228                 });
 229                 remove.setEnabled(false);
 230
 231                 search = SWTUtil.createButton(buttonComp, WebBrowserUIPlugin.getResource("%search"));
 232                 search.addSelectionListener(new SelectionAdapter() {
 233                         public void widgetSelected(SelectionEvent e) {
 234                                 java.util.List browsersToCreate = BrowserSearcher.search(getShell());
 235
 236                                 if (browsersToCreate == null) // cancelled
 237                                         return;
 238
 239                                 if (browsersToCreate.isEmpty()) { // no browsers found
 240                                         WebBrowserUtil.openMessage(WebBrowserUIPlugin.getResource("%searchingNoneFound"));
 241                                         return;
 242                                 }
 243
 244                                 Iterator iterator = browsersToCreate.iterator();
 245                                 while (iterator.hasNext()) {
 246                                         IExternalWebBrowserWorkingCopy browser2 = (IExternalWebBrowserWorkingCopy) iterator.next();
 247                                         browser2.save();
 248                                 }
 249                                 tableViewer.refresh();
 250                         }
 251                 });
 252                 WorkbenchHelp.setHelp(search, ContextIds.PREF_BROWSER_EXTERNAL_SEARCH);
 253
 254                 tableViewer.addCheckStateListener(new ICheckStateListener() {
 255                         public void checkStateChanged(CheckStateChangedEvent e) {
 256                                 checkNewDefaultBrowser(e.getElement());
 257                                 IWebBrowser browser2 = (IWebBrowser) e.getElement();
 258                                 BrowserManager.getInstance().setCurrentWebBrowser(browser2);
 259                         }
 260                 });
 261                 search.setEnabled(true);
 262         }
 263
 264         public IWebBrowser getSelectedWebBrowser() {
 265                 return selection;
 266         }
 267
 268         protected Object getSelection(ISelection sel2) {
 269                 IStructuredSelection sel = (IStructuredSelection) sel2;
 270                 return sel.getFirstElement();
 271         }
 272
 273         // Uncheck all the items except the current one that was just checked
 274         protected void checkNewDefaultBrowser(Object browser) {
 275                 TableItem[] children = tableViewer.getTable().getItems();
 276                 for (int i = 0; i < children.length; i++) {
 277                         TableItem item = children[i];
 278
 279                         if (!(item.getData().equals(browser)))
 280                                 item.setChecked(false);
 281                 }
 282         }
 283 }