DXR is a code search and navigation tool aimed at making sense of large projects. It supports full-text and regex searches as well as structural queries.

Mercurial (a81015259a98)

VCS Links

Line Code
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530
<?xml version="1.0"?>

<bindings id="radioBindings"
   xmlns="http://www.mozilla.org/xbl"
   xmlns:xul="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
   xmlns:xbl="http://www.mozilla.org/xbl">

  <binding id="radiogroup" extends="chrome://global/content/bindings/general.xml#basecontrol">
    <resources>
      <stylesheet src="chrome://global/skin/radio.css"/>
    </resources>

    <implementation implements="nsIDOMXULSelectControlElement, nsIAccessibleProvider">
      <constructor>
        <![CDATA[
          if (this.getAttribute("disabled") == "true")
            this.disabled = true;

          var children = this._getRadioChildren();
          var length = children.length;
          for (var i = 0; i < length; i++) {
            if (children[i].getAttribute("selected") == "true") {
              this.selectedIndex = i;
              return;
            }
          }

          var value = this.value;
          if (value)
            this.value = value;
          else
            this.selectedIndex = 0;
        ]]>
      </constructor>

      <property name="accessibleType" readonly="true">
        <getter>
          <![CDATA[
            return Components.interfaces.nsIAccessibleProvider.XULRadioGroup;
          ]]>
        </getter>
      </property>

      <property name="value" onget="return this.getAttribute('value');">
        <setter>
          <![CDATA[
            this.setAttribute("value", val);
            var children = this._getRadioChildren();
            for (var i = 0; i < children.length; i++) {
              if (String(children[i].value) == String(val)) {
                this.selectedItem = children[i];
                break;
              }
            }
            return val;
          ]]>
        </setter>
      </property>
      <property name="disabled">
        <getter>
        <![CDATA[
          if (this.getAttribute('disabled') == 'true')
            return true;
          var children = this._getRadioChildren();
          for (var i = 0; i < children.length; ++i) {
            if (!children[i].hidden && !children[i].collapsed && !children[i].disabled)
              return false;
          }
          return true;
        ]]>
        </getter>
        <setter>
        <![CDATA[
          if (val)
            this.setAttribute('disabled', 'true');
          else
            this.removeAttribute('disabled');
          var children = this._getRadioChildren();
          for (var i = 0; i < children.length; ++i) {
            children[i].disabled = val;
          }
          return val;
        ]]>
        </setter>
      </property>

      <property name="itemCount" readonly="true"
                onget="return this._getRadioChildren().length"/>

      <property name="selectedIndex">
        <getter>
        <![CDATA[
          var children = this._getRadioChildren();
          for (var i = 0; i < children.length; ++i) {
            if (children[i].selected)
              return i;
          }
          return -1;
        ]]>
        </getter>
        <setter>
        <![CDATA[
          this.selectedItem = this._getRadioChildren()[val];
          return val;
        ]]>
        </setter>
      </property>

      <property name="selectedItem">
        <getter>
        <![CDATA[
          var children = this._getRadioChildren();
          for (var i = 0; i < children.length; ++i) {
            if (children[i].selected)
              return children[i];
          }
          return null;
        ]]>
        </getter>
        <setter>
        <![CDATA[
          var focused = this.getAttribute("focused") == "true";
          var alreadySelected = false;

          if (val) {
            alreadySelected = val.getAttribute("selected") == "true";
            val.setAttribute("focused", focused);
            val.setAttribute("selected", "true");
            this.setAttribute("value", val.value);
          }
          else {
            this.removeAttribute("value");
          }

          // uncheck all other group nodes
          var children = this._getRadioChildren();
          var previousItem = null;
          for (var i = 0; i < children.length; ++i) {
            if (children[i] != val) {
              if (children[i].getAttribute("selected") == "true")
                previousItem = children[i];

              children[i].removeAttribute("selected");
              children[i].removeAttribute("focused");
            }
          }

          var event = document.createEvent("Events");
          event.initEvent("select", false, true);
          this.dispatchEvent(event);

          if (!alreadySelected && focused) {
            // Only report if actual change
            var myEvent;
            if (val) {
              myEvent = document.createEvent("Events");
              myEvent.initEvent("RadioStateChange", true, true);
              val.dispatchEvent(myEvent);
            }

            if (previousItem) {
              myEvent = document.createEvent("Events");
              myEvent.initEvent("RadioStateChange", true, true);
              previousItem.dispatchEvent(myEvent);
            }
          }

          return val;
        ]]>
        </setter>        
      </property>
      
      <property name="focusedItem">
        <getter>
        <![CDATA[
          var children = this._getRadioChildren();
          for (var i = 0; i < children.length; ++i) {
            if (children[i].getAttribute("focused") == "true")
              return children[i];
          }
          return null;
        ]]>
        </getter>
        <setter>
        <![CDATA[
          if (val) val.setAttribute("focused", "true");
          
          // unfocus all other group nodes
          var children = this._getRadioChildren();
          for (var i = 0; i < children.length; ++i) {
            if (children[i] != val)
              children[i].removeAttribute("focused");
          }
          return val;
        ]]>
        </setter>
      </property>
      
      <method name="checkAdjacentElement">
        <parameter name="aNextFlag"/>
        <body>
        <![CDATA[
          var currentElement = this.focusedItem || this.selectedItem;
          var i;
          var children = this._getRadioChildren();
          for (i = 0; i < children.length; ++i ) {
            if (children[i] == currentElement) 
              break;
          }
          var index = i;

          if (aNextFlag) {
            do {
              if (++i == children.length)
                i = 0;
              if (i == index)
                break;
            }
            while (children[i].hidden || children[i].collapsed || children[i].disabled);
            // XXX check for display/visibility props too

            this.selectedItem = children[i];
            children[i].doCommand();
          }
          else {              
            do {
              if (i == 0)
                i = children.length;
              if (--i == index)
                break;
            }
            while (children[i].hidden || children[i].collapsed || children[i].disabled);
            // XXX check for display/visibility props too

            this.selectedItem = children[i];
            children[i].doCommand();
          }
        ]]>
        </body>
      </method>
      <field name="_radioChildren">null</field>
      <method name="_getRadioChildren">
        <body>
        <![CDATA[
          if (this._radioChildren)
            return this._radioChildren;

          var radioChildren = [];
          var doc = this.ownerDocument;

          if (this.hasChildNodes()) {
            // Don't store the collected child nodes immediately,
            // collecting the child nodes could trigger constructors
            // which would blow away our list.

            const nsIDOMNodeFilter = Components.interfaces.nsIDOMNodeFilter;
            var iterator = doc.createTreeWalker(this,
                                                nsIDOMNodeFilter.SHOW_ELEMENT,
                                                this._filterRadioGroup,
                                                true);
            while (iterator.nextNode())
              radioChildren.push(iterator.currentNode);
            return this._radioChildren = radioChildren;
          }

          // We don't have child nodes.
          const XUL_NS = "http://www.mozilla.org/keymaster/"
                       + "gatekeeper/there.is.only.xul";
          var elems = doc.getElementsByAttribute("group", this.id);
          for (var i = 0; i < elems.length; i++) {
            if ((elems[i].namespaceURI == XUL_NS) &&
                (elems[i].localName == "radio")) {
              radioChildren.push(elems[i]);
            }
          }
          return this._radioChildren = radioChildren;
        ]]>
        </body>
      </method>
      <method name="_filterRadioGroup">
        <parameter name="node"/>
        <body>
        <![CDATA[
          switch (node.localName) {
            case "radio": return NodeFilter.FILTER_ACCEPT;
            case "template":
            case "radiogroup": return NodeFilter.FILTER_REJECT;
            default: return NodeFilter.FILTER_SKIP;
          }
        ]]>
        </body>
      </method>

      <method name="getIndexOfItem">
        <parameter name="item"/>
        <body>
          return this._getRadioChildren().indexOf(item);
        </body>
      </method>

      <method name="getItemAtIndex">
        <parameter name="index"/>
        <body>
        <![CDATA[
          var children = this._getRadioChildren();
          return (index >= 0 && index < children.length) ? children[index] : null;
        ]]>
        </body>
      </method>

      <method name="appendItem">
        <parameter name="label"/>
        <parameter name="value"/>
        <body>
        <![CDATA[
          var XULNS = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
          var radio = document.createElementNS(XULNS, "radio");
          radio.setAttribute("label", label);
          radio.setAttribute("value", value);
          this.appendChild(radio);
          this._radioChildren = null;
          return radio;
        ]]>
        </body>
      </method>
      
      <method name="insertItemAt">
        <parameter name="index"/>
        <parameter name="label"/>
        <parameter name="value"/>
        <body>
        <![CDATA[
          var XULNS = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
          var radio = document.createElementNS(XULNS, "radio");
          radio.setAttribute("label", label);
          radio.setAttribute("value", value);
          var before = this.getItemAtIndex(index);
          if (before)
            before.parentNode.insertBefore(radio, before);
          else
            this.appendChild(radio);
          this._radioChildren = null;
          return radio;
        ]]>
        </body>
      </method>

      <method name="removeItemAt">
        <parameter name="index"/>
        <body>
        <![CDATA[
          var remove = this.getItemAtIndex(index);
          if (remove) {
            remove.parentNode.removeChild(remove);
            this._radioChildren = null;
          }
          return remove;
        ]]>
        </body>
      </method>
    </implementation>
    
    <handlers>
      <handler event="mousedown">
        if (this.disabled)
          event.preventDefault();
       </handler>
     
      <!-- keyboard navigation -->
      <!-- Here's how keyboard navigation works in radio groups on Windows:
           The group takes 'focus'
           The user is then free to navigate around inside the group
           using the arrow keys. Accessing previous or following radio buttons
           is done solely through the arrow keys and not the tab button. Tab
           takes you to the next widget in the tab order -->
      <handler event="keypress" key=" " phase="target">
         this.selectedItem = this.focusedItem;
         this.selectedItem.doCommand();
      </handler>
      <handler event="keypress" keycode="VK_UP" phase="target">
        this.checkAdjacentElement(false);
        event.stopPropagation();
      </handler>
      <handler event="keypress" keycode="VK_LEFT" phase="target">
        // left arrow goes back when we are ltr, forward when we are rtl
        this.checkAdjacentElement(document.defaultView.getComputedStyle(
                                    this, "").direction == "rtl");
        event.stopPropagation();
      </handler>
      <handler event="keypress" keycode="VK_DOWN" phase="target">
        this.checkAdjacentElement(true);
        event.stopPropagation();
      </handler>
      <handler event="keypress" keycode="VK_RIGHT" phase="target">
        // right arrow goes forward when we are ltr, back when we are rtl
        this.checkAdjacentElement(document.defaultView.getComputedStyle(
                                    this, "").direction == "ltr");
        event.stopPropagation();
      </handler>

      <!-- set a focused attribute on the selected item when the group
           receives focus so that we can style it as if it were focused even though
           it is not (Windows platform behaviour is for the group to receive focus,
           not the item -->
      <handler event="focus" phase="target">
        <![CDATA[
          this.setAttribute("focused", "true");
          if (this.focusedItem)
            return;

          var val = this.selectedItem;
          if (!val || val.disabled || val.hidden || val.collapsed) {
            var children = this._getRadioChildren();
            for (var i = 0; i < children.length; ++i) {
              if (!children[i].hidden && !children[i].collapsed && !children[i].disabled) {
                val = children[i];
                break;
              }
            }
          }
          this.focusedItem = val;
        ]]>
      </handler>
      <handler event="blur" phase="target">
        this.removeAttribute("focused");
        this.focusedItem = null;
      </handler>
    </handlers>
  </binding>

  <binding id="radio" extends="chrome://global/content/bindings/general.xml#control-item">
    <resources>
      <stylesheet src="chrome://global/skin/radio.css"/>
    </resources>

    <content>
      <xul:image class="radio-check" xbl:inherits="disabled,selected"/>
      <xul:hbox class="radio-label-box" align="center" flex="1">
        <xul:image class="radio-icon" xbl:inherits="src"/>
        <xul:label class="radio-label" xbl:inherits="xbl:text=label,accesskey,crop" flex="1"/>
      </xul:hbox>
    </content>

    <implementation implements="nsIDOMXULSelectControlItemElement, nsIAccessibleProvider">
      <constructor>
        <![CDATA[
          // Just clear out the parent's cached list of radio children
          var control = this.control;
          if (control)
            control._radioChildren = null;
        ]]>
      </constructor>
      <destructor>
        <![CDATA[
          if (!this.radioGroup)
            return;

          var radioList = this.radioGroup.mRadioChildren;
          if (!radioList)
            return;
          for (var i = 0; i < radioList.length; ++i) {
            if (radioList[i] == this) {
              radioList.splice(i, 1);
              return;
            }
          }
        ]]>
      </destructor>
      <property name="accessibleType" readonly="true">
        <getter>
          <![CDATA[
            return Components.interfaces.nsIAccessibleProvider.XULRadioButton;
          ]]>
        </getter>
      </property>
      <property name="selected" readonly="true">
        <getter>
          <![CDATA[
            return this.hasAttribute('selected');
          ]]>
        </getter>
      </property>
      <property name="radioGroup" readonly="true" onget="return this.control"/>
      <property name="control" readonly="true">
        <getter>
        <![CDATA[
          const XUL_NS = "http://www.mozilla.org/keymaster/"
                       + "gatekeeper/there.is.only.xul";
          var parent = this.parentNode;
          while (parent) {
            if ((parent.namespaceURI == XUL_NS) &&
                (parent.localName == "radiogroup")) {
              return parent;
            }
            parent = parent.parentNode;
          }

          var group = this.getAttribute("group");
          if (!group) {
            return null;
          }

          parent = this.ownerDocument.getElementById(group);
          if (!parent ||
              (parent.namespaceURI != XUL_NS) ||
              (parent.localName != "radiogroup")) {
            parent = null;
          }
          return parent;
        ]]>
        </getter>
      </property>
    </implementation>
    <handlers>
      <handler event="click" button="0">
        <![CDATA[
          if (!this.disabled)
            this.control.selectedItem = this;
         ]]>
      </handler>

      <handler event="mousedown" button="0">
        <![CDATA[
          if (!this.disabled)
            this.control.focusedItem = this;
         ]]>
      </handler>
    </handlers>
  </binding>
</bindings>