net.sourceforge.phpeclipse.ui/src/net/sourceforge/phpeclipse/wizards/html/UnknownElementWizardPage.java

   1 /*
   2  * $Id: UnknownElementWizardPage.java,v 1.2 2006-10-21 23:18:43 pombredanne Exp $
   3  * Copyright Narushima Hironori. All rights reserved.
   4  */
   5 package net.sourceforge.phpeclipse.wizards.html;
   6
   7 import java.util.ArrayList;
   8
   9 import org.eclipse.jface.dialogs.IInputValidator;
  10 import org.eclipse.jface.viewers.ArrayContentProvider;
  11 import org.eclipse.jface.viewers.CellEditor;
  12 import org.eclipse.jface.viewers.ICellModifier;
  13 import org.eclipse.jface.viewers.ILabelProviderListener;
  14 import org.eclipse.jface.viewers.IStructuredSelection;
  15 import org.eclipse.jface.viewers.ITableLabelProvider;
  16 import org.eclipse.jface.viewers.TableViewer;
  17 import org.eclipse.jface.viewers.TextCellEditor;
  18 import org.eclipse.jface.window.Window;
  19 import org.eclipse.swt.SWT;
  20 import org.eclipse.swt.events.SelectionEvent;
  21 import org.eclipse.swt.events.SelectionListener;
  22 import org.eclipse.swt.graphics.Image;
  23 import org.eclipse.swt.layout.GridData;
  24 import org.eclipse.swt.layout.GridLayout;
  25 import org.eclipse.swt.widgets.Button;
  26 import org.eclipse.swt.widgets.Composite;
  27 import org.eclipse.swt.widgets.Item;
  28 import org.eclipse.swt.widgets.Label;
  29 import org.eclipse.swt.widgets.Table;
  30 import org.eclipse.swt.widgets.TableColumn;
  31 import org.w3c.dom.Element;
  32 import org.w3c.dom.NamedNodeMap;
  33 import org.w3c.dom.Node;
  34
  35 /**
  36  *
  37  *
  38  */
  39 public class UnknownElementWizardPage extends EditElementWizardPage {
  40
  41         // key of TableCell for attribute editor.
  42         final static String NAME = "ColumnProperty-name",
  43                         VALUE = "ColumnProperty-value";
  44
  45         Button emptyElementCheck, addButton, removeButton, upButton, downButton;
  46
  47         TableViewer unknownElementAttrs;
  48
  49         ArrayList attrs = new ArrayList(), listeners = new ArrayList();
  50
  51         SelectionListener elemTypeChangeListener = new SelectionListener() {
  52                 public void widgetSelected(SelectionEvent e) {
  53                         refreshPreview();
  54                 }
  55
  56                 public void widgetDefaultSelected(SelectionEvent e) {
  57                 }
  58         };
  59
  60         public UnknownElementWizardPage() {
  61                 super("UnknownElementEditPage");
  62                 setTitle("Unknown");
  63                 setDescription("Editor for any HTML element.");
  64         }
  65
  66         static IInputValidator attrValidator = new IInputValidator() {
  67                 public String isValid(String newText) {
  68                         if (newText.length() == 0) {
  69                                 return "Need to specify name";
  70                         }
  71                         if (newText.indexOf(' ') != -1 || newText.indexOf('\n') != -1
  72                                         || newText.indexOf('\t') != -1) {
  73                                 return "Not contain blank";
  74                         }
  75                         return null;
  76                 }
  77         };
  78
  79         protected void createChildControl(Composite parent) {
  80                 // empty eleemnt
  81                 parent.setLayout(new GridLayout(2, false));
  82
  83                 // // attribute editor
  84                 Label labe = new Label(parent, SWT.NONE);
  85                 labe.setText("Element &Attribute:");
  86                 GridData gd = new GridData(GridData.HORIZONTAL_ALIGN_BEGINNING);
  87                 labe.setLayoutData(gd);
  88                 new Label(parent, SWT.NONE);
  89
  90                 // attribute display table setting
  91                 unknownElementAttrs = new TableViewer(parent, SWT.BORDER | SWT.SINGLE
  92                                 | SWT.FULL_SELECTION);
  93                 gd = new GridData(GridData.FILL_BOTH);
  94                 gd.horizontalSpan = 1;
  95                 gd.verticalSpan = 4;
  96                 unknownElementAttrs.getControl().setLayoutData(gd);
  97
  98                 final Table table = unknownElementAttrs.getTable();
  99                 new TableColumn(table, SWT.LEFT).setText("Name");
 100                 new TableColumn(table, SWT.LEFT).setText("Value");
 101
 102                 table.setLinesVisible(true);
 103                 table.setHeaderVisible(true);
 104                 // modifier setting
 105                 unknownElementAttrs.setColumnProperties(new String[] { NAME, VALUE });
 106                 unknownElementAttrs.setContentProvider(new ArrayContentProvider());
 107
 108                 unknownElementAttrs.setCellEditors(new CellEditor[] {
 109                                 new TextCellEditor(table), new TextCellEditor(table) });
 110                 unknownElementAttrs.setCellModifier(new ICellModifier() {
 111                         public boolean canModify(Object element, String property) {
 112                                 return true;
 113                         }
 114
 115                         public Object getValue(Object element, String property) {
 116                                 return ((String[]) element)[property.equals(NAME) ? 0 : 1];
 117                         }
 118
 119                         public void modify(Object element, String property, Object value) {
 120                                 if (element instanceof Item) {
 121                                         ((String[]) ((Item) element).getData())[property
 122                                                         .equals(NAME) ? 0 : 1] = HTMLUtilities
 123                                                         .unescape((String) value);
 124                                         refreshPreview();
 125                                 }
 126                         }
 127                 });
 128
 129                 unknownElementAttrs.setLabelProvider(new ITableLabelProvider() {
 130                         public Image getColumnImage(Object element, int columnIndex) {
 131                                 return null;
 132                         }
 133
 134                         public String getColumnText(Object element, int columnIndex) {
 135                                 return ((String[]) element)[columnIndex];
 136                         }
 137
 138                         public void addListener(ILabelProviderListener listener) {
 139                         }
 140
 141                         public void removeListener(ILabelProviderListener listener) {
 142                         }
 143
 144                         public void dispose() {
 145                         }
 146
 147                         public boolean isLabelProperty(Object element, String property) {
 148                                 return property.equals(NAME) || property.equals(VALUE);
 149                         }
 150                 });
 151
 152                 resetAttributes();
 153                 unknownElementAttrs.setInput(attrs);
 154
 155                 TableColumn[] columns = table.getColumns();
 156                 for (int i = 0; i < columns.length; i++) {
 157                         columns[i].pack();
 158                 }
 159
 160                 // buttonss
 161                 upButton = createButton(parent, "&Up");
 162                 upButton.addSelectionListener(new SelectionListener() {
 163
 164                         public void widgetSelected(SelectionEvent e) {
 165                                 int index = getSelectionIndex();
 166                                 if (index > 0) {
 167                                         attrs.add(index - 1, attrs.remove(index));
 168                                         refreshPreview();
 169                                 }
 170                         }
 171
 172                         public void widgetDefaultSelected(SelectionEvent e) {
 173                         }
 174                 });
 175
 176                 downButton = createButton(parent, "&Down");
 177                 downButton.addSelectionListener(new SelectionListener() {
 178                         public void widgetSelected(SelectionEvent e) {
 179                                 int index = getSelectionIndex();
 180                                 if (index < attrs.size() - 1) {
 181                                         attrs.add(index + 1, attrs.remove(index));
 182                                         refreshPreview();
 183                                 }
 184                         }
 185
 186                         public void widgetDefaultSelected(SelectionEvent e) {
 187                         }
 188                 });
 189
 190                 addButton = createButton(parent, "&Add");
 191                 addButton.addSelectionListener(new SelectionListener() {
 192                         public void widgetSelected(SelectionEvent e) {
 193                                 int insertIndex = getSelectionIndex();
 194                                 String[] newData = inputValue();
 195                                 if (newData != null) {
 196                                         attrs.add(newData);
 197                                         refreshPreview();
 198                                 }
 199                         }
 200
 201                         String[] inputValue() {
 202                                 SomeItemInputDialog dialog = new SomeItemInputDialog(
 203                                                 getShell(), "Input new attribute", new String[] {
 204                                                                 "Attribute name", "Attribute value" },
 205                                                 new IInputValidator[] { attrValidator, null });
 206
 207                                 if (dialog.open() == Window.OK) {
 208                                         return dialog.getValues();
 209                                 }
 210                                 return null;
 211                         }
 212
 213                         public void widgetDefaultSelected(SelectionEvent e) {
 214                         }
 215                 });
 216
 217                 removeButton = createButton(parent, "&Remove");
 218                 removeButton.addSelectionListener(new SelectionListener() {
 219                         public void widgetSelected(SelectionEvent e) {
 220                                 int index = getSelectionIndex();
 221                                 if (index != -1) {
 222                                         attrs.remove(index);
 223                                         refreshPreview();
 224                                 }
 225                         }
 226
 227                         public void widgetDefaultSelected(SelectionEvent e) {
 228                         }
 229                 });
 230
 231                 emptyElementCheck = new Button(parent, SWT.CHECK);
 232                 gd = new GridData(GridData.FILL_HORIZONTAL);
 233                 emptyElementCheck.setLayoutData(gd);
 234                 emptyElementCheck.setText("&Empty Element");
 235                 emptyElementCheck.addSelectionListener(elemTypeChangeListener);
 236                 emptyElementCheck.setSelection(isEmptyAsText());
 237
 238                 new Label(parent, SWT.NONE);
 239         }
 240
 241         static Button createButton(Composite parent, String text) {
 242                 Button button = new Button(parent, SWT.PUSH);
 243                 GridData gd = new GridData(GridData.VERTICAL_ALIGN_BEGINNING
 244                                 | GridData.HORIZONTAL_ALIGN_END);
 245                 gd.widthHint = 60;
 246                 button.setLayoutData(gd);
 247                 button.setText(text);
 248                 return button;
 249         }
 250
 251         public String getPreviewText() {
 252                 String elemName = getElementName();
 253                 if (elemName == null) {
 254                         return null;
 255                 }
 256
 257                 // sets values
 258
 259                 boolean empty = false;
 260                 if (emptyElementCheck == null) {
 261                         // ui uninitialized
 262                         empty = isEmptyAsText();
 263                 } else {
 264                         // ui initialized
 265                         empty = emptyElementCheck.getSelection();
 266                 }
 267
 268                 String content = getSelectionText();
 269                 if (!empty && getEditType() == MODIFY) {
 270                         content = chooseContent(content);
 271                 }
 272
 273                 String previewText = "<" + elemName + attrsCode();
 274                 if (empty) {
 275                         previewText += " />";
 276                 } else {
 277                         previewText += ">" + content + "</" + elemName + ">";
 278                 }
 279                 return previewText;
 280         }
 281
 282         boolean isEmptyAsText() {
 283                 String selText = getSelectionText();
 284                 if (getEditType() == MODIFY) {
 285                         int len = selText.length();
 286                         return selText.substring(len - 2, len).equals("/>");
 287                 }
 288                 return false;
 289         }
 290
 291         void resetAttributes() {
 292                 attrs.clear();
 293
 294                 Element elem = getParsedSelectionText();
 295                 if (elem != null) {
 296                         NamedNodeMap as = elem.getAttributes();
 297                         for (int i = 0; i < as.getLength(); i++) {
 298                                 Node n = as.item(i);
 299                                 attrs.add(new String[] { n.getNodeName(), n.getNodeValue() });
 300                         }
 301                 }
 302         }
 303
 304         String attrsCode() {
 305                 StringBuffer buff = new StringBuffer();
 306                 Object[] as = attrs.toArray();
 307                 for (int i = 0; i < as.length; i++) {
 308                         String[] a = (String[]) as[i];
 309                         buff.append(" " + a[0] + "=\"" + HTMLUtilities.escape(a[1]) + "\"");
 310                 }
 311                 return buff.toString();
 312         }
 313
 314         int getSelectionIndex() {
 315                 Object sel = unknownElementAttrs.getSelection();
 316                 if (sel instanceof IStructuredSelection) {
 317                         Object item = ((IStructuredSelection) sel).getFirstElement();
 318                         return attrs.indexOf(item);
 319                 } else {
 320                         return -1;
 321                 }
 322         }
 323
 324         public void refreshPreview() {
 325                 unknownElementAttrs.refresh();
 326                 super.refreshPreview();
 327         }
 328
 329         public void setElementName(String elemName) {
 330                 super.setElementName(elemName);
 331                 setTitle("\"" + elemName + "\" Element");
 332         }
 333
 334 }