Adobe 38040334 Extending Dreamweaver - Page 137

Letting the user specify uppercase or lowercase, To let the user specify uppercase or lowercase

Page 137 highlights

DREAMWEAVER CS3 131 Extending Dreamweaver 3 Save the file. The commandButtons() function causes Dreamweaver to supply the OK and Cancel buttons and tells Dreamweaver what to do when the user clicks them. The commandButtons() function tells Dreamweaver to call changeCase() when the user clicks OK and to call window.close() when the user clicks Cancel. Letting the user specify uppercase or lowercase When the user clicks a menu item, the extension needs a mechanism to let the user select uppercase or lowercase. The UI provides this mechanism by defining two radio buttons to let the user make that choice. To let the user specify uppercase or lowercase: 1 Open the file Change Case.js. 2 At the end of the file, add the following code: function changeCase() { var uorl; // Check whether user requested uppercase or lowercase. if (document.forms[0].elements[0].checked) uorl = 'u'; else uorl = 'l'; // Get the DOM. var theDOM = dw.getDocumentDOM(); // Get the outerHTML of the HTML tag (the // entire contents of the document). var theDocEl = theDOM.documentElement; var theWholeDoc = theDocEl.outerHTML; // Get the node that contains the selection. var theSelNode = theDOM.getSelectedNode(); // Get the children of the selected node. var theChildren = theSelNode.childNodes; var i = 0; if (theSelNode.hasChildNodes()){ while (i < theChildren.length){ if (theChildren[i].nodeType == Node.TEXT_NODE){ var selText = theChildren[i].data; var theSel = theDOM.nodeToOffsets(theChildren[0]); break; } ++i; } } else { // Get the offsets of the selection var theSel = theDOM.getSelection(); // Extract the selection var selText = theWholeDoc.substring(theSel[0],theSel[1]);

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
  • 117
  • 118
  • 119
  • 120
  • 121
  • 122
  • 123
  • 124
  • 125
  • 126
  • 127
  • 128
  • 129
  • 130
  • 131
  • 132
  • 133
  • 134
  • 135
  • 136
  • 137
  • 138
  • 139
  • 140
  • 141
  • 142
  • 143
  • 144
  • 145
  • 146
  • 147
  • 148
  • 149
  • 150
  • 151
  • 152
  • 153
  • 154
  • 155
  • 156
  • 157
  • 158
  • 159
  • 160
  • 161
  • 162
  • 163
  • 164
  • 165
  • 166
  • 167
  • 168
  • 169
  • 170
  • 171
  • 172
  • 173
  • 174
  • 175
  • 176
  • 177
  • 178
  • 179
  • 180
  • 181
  • 182
  • 183
  • 184
  • 185
  • 186
  • 187
  • 188
  • 189
  • 190
  • 191
  • 192
  • 193
  • 194
  • 195
  • 196
  • 197
  • 198
  • 199
  • 200
  • 201
  • 202
  • 203
  • 204
  • 205
  • 206
  • 207
  • 208
  • 209
  • 210
  • 211
  • 212
  • 213
  • 214
  • 215
  • 216
  • 217
  • 218
  • 219
  • 220
  • 221
  • 222
  • 223
  • 224
  • 225
  • 226
  • 227
  • 228
  • 229
  • 230
  • 231
  • 232
  • 233
  • 234
  • 235
  • 236
  • 237
  • 238
  • 239
  • 240
  • 241
  • 242
  • 243
  • 244
  • 245
  • 246
  • 247
  • 248
  • 249
  • 250
  • 251
  • 252
  • 253
  • 254
  • 255
  • 256
  • 257
  • 258
  • 259
  • 260
  • 261
  • 262
  • 263
  • 264
  • 265
  • 266
  • 267
  • 268
  • 269
  • 270
  • 271
  • 272
  • 273
  • 274
  • 275
  • 276
  • 277
  • 278
  • 279
  • 280
  • 281
  • 282
  • 283
  • 284
  • 285
  • 286
  • 287
  • 288
  • 289
  • 290
  • 291
  • 292
  • 293
  • 294
  • 295
  • 296
  • 297
  • 298
  • 299
  • 300
  • 301
  • 302
  • 303
  • 304
  • 305
  • 306
  • 307
  • 308
  • 309
  • 310
  • 311
  • 312
  • 313
  • 314
  • 315
  • 316
  • 317
  • 318
  • 319
  • 320
  • 321
  • 322
  • 323
  • 324
  • 325
  • 326
  • 327
  • 328
  • 329
  • 330
  • 331
  • 332
  • 333
  • 334
  • 335
  • 336
  • 337
  • 338
  • 339
  • 340
  • 341
  • 342
  • 343
  • 344
  • 345
  • 346
  • 347
  • 348
  • 349
  • 350
  • 351
  • 352
  • 353
  • 354
  • 355
  • 356
  • 357
  • 358
  • 359
  • 360
  • 361
  • 362
  • 363
  • 364
  • 365
  • 366
  • 367
  • 368
  • 369
  • 370
  • 371
  • 372
  • 373
  • 374
  • 375
  • 376
  • 377
  • 378
  • 379
  • 380
  • 381
  • 382
  • 383
  • 384
  • 385

DREAMWEAVER CS3
Extending Dreamweaver
131
3
Save the file.
The
commandButtons()
function causes Dreamweaver to supply the OK and Cancel buttons and tells Dreamweaver
what to do when the user clicks them. The
commandButtons()
function tells Dreamweaver to call
changeCase()
when the user clicks OK and to call
window.close()
when the user clicks Cancel.
Letting the user specify uppercase or lowercase
When the user clicks a menu item, the extension needs a mechanism to let the user select uppercase or lowercase.
The UI provides this mechanism by defining two radio buttons to let the user make that choice.
To let the user specify uppercase or lowercase:
1
Open the file Change Case.js.
2
At the end of the file, add the following code:
function changeCase() {
var uorl;
// Check whether user requested uppercase or lowercase.
if (document.forms[0].elements[0].checked)
uorl = 'u';
else
uorl = 'l';
// Get the DOM.
var theDOM = dw.getDocumentDOM();
// Get the outerHTML of the HTML tag (the
// entire contents of the document).
var theDocEl = theDOM.documentElement;
var theWholeDoc = theDocEl.outerHTML;
// Get the node that contains the selection.
var theSelNode = theDOM.getSelectedNode();
// Get the children of the selected node.
var theChildren = theSelNode.childNodes;
var i = 0;
if (theSelNode.hasChildNodes()){
while (i < theChildren.length){
if (theChildren[i].nodeType == Node.TEXT_NODE){
var selText = theChildren[i].data;
var theSel = theDOM.nodeToOffsets(theChildren[0]);
break;
}
++i;
}
}
else {
// Get the offsets of the selection
var theSel = theDOM.getSelection();
// Extract the selection
var selText = theWholeDoc.substring(theSel[0],theSel[1]);