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You'll need run chrome with --allow-file-access-from-files. 23 </div> 24 <!-- SUBTEMPLATES: DO NOT MOVE FROM THIS LOCATION --> 25 <!-- In particular, sub-templates that recurse, must be used by allowing 26 jstemplate to make a copy of the template in this section which 27 are not operated on by way of the jsskip="true" --> 28 <div style="display:none"> 29 30 <!-- VALUE --> 31 <div id="valueTemplate"> 32 <dt> 33 <var>paramName</var> 34 <em> 35 36 <!-- TYPE --> 37 <div style="display:inline"> 38 ( 39 <span class="optional">optional</span> 40 <span class="enum">enumerated</span> 41 <span id="typeTemplate"> 42 <span> 43 <a> Type</a> 44 </span> 45 <span> 46 <span> 47 array of <span><span></span></span> 48 </span> 49 <span>paramType</span> 50 <span></span> 51 </span> 52 </span> 53 ) 54 </div> 55 56 </em> 57 </dt> 58 <dd class="todo"> 59 Undocumented. 60 </dd> 61 <dd> 62 Description of this parameter from the json schema. 63 </dd> 64 <dd> 65 This parameter was added in version 66 <b><span></span></b>. 67 You must omit this parameter in earlier versions, 68 and you may omit it in any version. If you require this 69 parameter, the manifest key 70 <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> 71 can ensure that your extension won't be run in an earlier browser version. 72 </dd> 73 74 <!-- OBJECT PROPERTIES --> 75 <dd> 76 <dl> 77 <div> 78 <div> 79 </div> 80 </div> 81 </dl> 82 </dd> 83 84 <!-- OBJECT METHODS --> 85 <dd> 86 <div></div> 87 </dd> 88 89 <!-- OBJECT EVENT FIELDS --> 90 <dd> 91 <div></div> 92 </dd> 93 94 <!-- FUNCTION PARAMETERS --> 95 <dd> 96 <div></div> 97 </dd> 98 99 </div> <!-- /VALUE --> 100 101 <div id="functionParametersTemplate"> 102 <h5>Parameters</h5> 103 <dl> 104 <div> 105 <div> 106 </div> 107 </div> 108 </dl> 109 </div> 110 </div> <!-- /SUBTEMPLATES --> 111 112 <a id="top"></a> 113 <div id="skipto"> 114 <a href="#gc-pagecontent">Skip to page content</a> 115 <a href="#gc-toc">Skip to main navigation</a> 116 </div> 117 <!-- API HEADER --> 118 <table id="header" width="100%" cellspacing="0" border="0"> 119 <tbody><tr> 120 <td valign="middle"><a href="http://code.google.com/"><img src="images/code_labs_logo.gif" height="43" width="161" alt="Google Code Labs" style="border:0; 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250 </script> 251 252 <div class="g-unit" id="gc-pagecontent"> 253 <div id="pageTitle"> 254 <h1 class="page_title">Desktop Notifications</h1> 255 </div> 256 <!-- TABLE OF CONTENTS --> 257 <div id="toc"> 258 <h2>Contents</h2> 259 <ol> 260 <li> 261 <a href="#manifest">Manifest</a> 262 <ol> 263 <li style="display: none; "> 264 <a>h3Name</a> 265 </li> 266 </ol> 267 </li><li> 268 <a href="#communication">Communicating with other views</a> 269 <ol> 270 <li style="display: none; "> 271 <a>h3Name</a> 272 </li> 273 </ol> 274 </li><li> 275 <a href="#examples"> Examples </a> 276 <ol> 277 <li style="display: none; "> 278 <a>h3Name</a> 279 </li> 280 </ol> 281 </li><li> 282 <a href="#api">API</a> 283 <ol> 284 <li style="display: none; "> 285 <a>h3Name</a> 286 </li> 287 </ol> 288 </li> 289 <li style="display: none; "> 290 <a href="#apiReference">API reference</a> 291 <ol> 292 <li> 293 <a href="#properties">Properties</a> 294 <ol> 295 <li> 296 <a href="#property-anchor">propertyName</a> 297 </li> 298 </ol> 299 </li> 300 <li> 301 <a>Methods</a> 302 <ol> 303 <li> 304 <a href="#method-anchor">methodName</a> 305 </li> 306 </ol> 307 </li> 308 <li> 309 <a>Events</a> 310 <ol> 311 <li> 312 <a href="#event-anchor">eventName</a> 313 </li> 314 </ol> 315 </li> 316 <li> 317 <a href="#types">Types</a> 318 <ol> 319 <li> 320 <a href="#id-anchor">id</a> 321 </li> 322 </ol> 323 </li> 324 </ol> 325 </li> 326 </ol> 327 </div> 328 <!-- /TABLE OF CONTENTS --> 329 330 <!-- Standard content lead-in for experimental API pages --> 331 <p id="classSummary" style="display: none; "> 332 For information on how to use experimental APIs, see the <a href="experimental.html">chrome.experimental.* APIs</a> page. 333 </p> 334 335 <!-- STATIC CONTENT PLACEHOLDER --> 336 <div id="static"><div id="pageData-name" class="pageData">Desktop Notifications</div> 337<div id="pageData-showTOC" class="pageData">true</div> 338 339<!-- BEGIN AUTHORED CONTENT --> 340<p> 341Use desktop notifications to notify users that something 342important has happened. 343Notifications appear outside the browser window. 344As the following snapshots show, 345the details of how notifications look 346and where they're shown depend on the platform. 347</p> 348 349<img src="images/notification-windows.png" width="28%" style="margin:2em 0.5em 1em; border:1px solid black;" alt="Notifications on Microsoft Windows"> 350<img src="images/notification-mac.png" width="28%" style="margin:2em 0.5em 1em; border:1px solid black;" alt="Notifications on Mac OS X"> 351<img src="images/notification-linux.png" width="28%" style="margin:2em 0.5em 1em; border:1px solid black;" alt="Notifications on Ubuntu Linux"> 352 353<p> 354You create the notification window 355using a bit of JavaScript and, optionally, 356an HTML page packaged inside your extension. 357</p> 358 359 360<h2 id="manifest">Manifest</h2> 361 362<p> 363You can request the notification permission 364in the <a href="manifest.html">extension manifest</a>, 365like this: 366</p> 367 368<pre>{ 369 "name": "My extension", 370 ... 371<b> "permissions": [ 372 "notifications" 373 ]</b>, 374 ... 375}</pre> 376 377<p class="note"> 378<b>Note:</b> Extensions that declare 379the <code>notifications</code> permission 380are always allowed to create notifications. 381There is no need to call 382<code>webkitNotifications.checkPermission()</code>. 383</p> 384 385<h2 id="communication">Communicating with other views</h2> 386 387<p> 388You can communicate between a notification 389and other views in your extension using 390<a href="extension.html#method-getBackgroundPage">getBackgroundPage()</a> and 391<a href="extension.html#method-getViews">getViews()</a>. For example: 392</p> 393 394<pre>// Inside a notification... 395chrome.extension.getBackgroundPage().doThing(); 396 397// From the background page... 398chrome.extension.getViews({type:"notification"}).forEach(function(win) { 399 win.doOtherThing(); 400}); 401</pre> 402 403 404<h2 id="examples"> Examples </h2> 405 406<p> 407You can find a simple example 408of using notifications in the 409<a href="http://src.chromium.org/viewvc/chrome/trunk/src/chrome/common/extensions/docs/examples/api/notifications/">examples/api/notifications</a> 410directory. 411For other examples 412and for help in viewing the source code, 413see <a href="samples.html">Samples</a>. 414</p> 415 416<p> 417Also see html5rocks.com's 418<a href="http://www.html5rocks.com/tutorials/notifications/quick/">notifications tutorial</a>. 419Ignore the permission-related code; 420it's unnecessary if you declare the "notifications" permission. 421</p> 422 423<h2 id="api">API</h2> 424 425<p> 426The desktop notification API for extensions 427is the same one that 428is available to normal web pages. 429As the following code shows, 430you first create either a simple text notification 431or an HTML notification, 432and then you show the notification. 433</p> 434 435<pre>// Create a simple text notification: 436var notification = webkitNotifications.createNotification( 437 '48.png', // icon url - can be relative 438 'Hello!', // notification title 439 'Lorem ipsum...' // notification body text 440); 441 442// Or create an HTML notification: 443var notification = webkitNotifications.createHTMLNotification( 444 'notification.html' // html url - can be relative 445); 446 447// Then show the notification. 448notification.show(); 449</pre> 450 451<p>For complete API details, 452see the <a href="http://dev.chromium.org/developers/design-documents/desktop-notifications/api-specification">Desktop notifications draft specification</a>.</p> 453 454<!-- END AUTHORED CONTENT --> 455</div> 456 457 <!-- API PAGE --> 458 <div class="apiPage" style="display: none; "> 459 <a name="apiReference"></a> 460 <h2>API reference: chrome.apiname </h2> 461 462 <!-- PROPERTIES --> 463 <div class="apiGroup"> 464 <a name="properties"></a> 465 <h3 id="properties">Properties</h3> 466 467 <div> 468 <a></a> 469 <h4>getLastError</h4> 470 <div class="summary"> 471 <!-- Note: intentionally longer 80 columns --> 472 <span>chrome.extension</span><span>lastError</span> 473 </div> 474 <div> 475 </div> 476 </div> 477 478 </div> <!-- /apiGroup --> 479 480 <!-- METHODS --> 481 <div id="methodsTemplate" class="apiGroup"> 482 <a></a> 483 <h3>Methods</h3> 484 485 <!-- iterates over all functions --> 486 <div class="apiItem"> 487 <a></a> <!-- method-anchor --> 488 <h4>method name</h4> 489 490 <div class="summary"><span>void</span> 491 <!-- Note: intentionally longer 80 columns --> 492 <span>chrome.module.methodName</span>(<span><span>, </span><span></span> 493 <var><span></span></var></span>)</div> 494 495 <div class="description"> 496 <p class="todo">Undocumented.</p> 497 <p> 498 A description from the json schema def of the function goes here. 499 </p> 500 501 <!-- PARAMETERS --> 502 <h4>Parameters</h4> 503 <dl> 504 <div> 505 <div> 506 </div> 507 </div> 508 </dl> 509 510 <!-- RETURNS --> 511 <h4>Returns</h4> 512 <dl> 513 <div> 514 <div> 515 </div> 516 </div> 517 </dl> 518 519 <!-- CALLBACK --> 520 <div> 521 <div> 522 <h4>Callback function</h4> 523 <p> 524 The callback <em>parameter</em> should specify a function 525 that looks like this: 526 </p> 527 <p> 528 If you specify the <em>callback</em> parameter, it should 529 specify a function that looks like this: 530 </p> 531 532 <!-- Note: intentionally longer 80 columns --> 533 <pre>function(<span>Type param1, Type param2</span>) <span class="subdued">{...}</span>;</pre> 534 <dl> 535 <div> 536 <div> 537 </div> 538 </div> 539 </dl> 540 </div> 541 </div> 542 543 <!-- MIN_VERSION --> 544 <p> 545 This function was added in version <b><span></span></b>. 546 If you require this function, the manifest key 547 <a href="manifest.html#minimum_chrome_version">minimum_chrome_version</a> 548 can ensure that your extension won't be run in an earlier browser version. 549 </p> 550 </div> <!-- /description --> 551 552 </div> <!-- /apiItem --> 553 554 </div> <!-- /apiGroup --> 555 556 <!-- EVENTS --> 557 <div id="eventsTemplate" class="apiGroup"> 558 <a></a> 559 <h3>Events</h3> 560 <!-- iterates over all events --> 561 <div class="apiItem"> 562 <a></a> 563 <h4>event name</h4> 564 565 <div class="summary"> 566 <!-- Note: intentionally longer 80 columns --> 567 <span class="subdued">chrome.bookmarks</span><span>onEvent</span><span class="subdued">.addListener</span>(function(<span>Type param1, Type param2</span>) <span class="subdued">{...}</span>); 568 </div> 569 570 <div class="description"> 571 <p class="todo">Undocumented.</p> 572 <p> 573 A description from the json schema def of the event goes here. 574 </p> 575 576 <!-- PARAMETERS --> 577 <div> 578 <h4>Parameters</h4> 579 <dl> 580 <div> 581 <div> 582 </div> 583 </div> 584 </dl> 585 </div> 586 </div> <!-- /decription --> 587 588 </div> <!-- /apiItem --> 589 590 </div> <!-- /apiGroup --> 591 592 <!-- TYPES --> 593 <div class="apiGroup"> 594 <a name="types"></a> 595 <h3 id="types">Types</h3> 596 597 <!-- iterates over all types --> 598 <div class="apiItem"> 599 <a></a> 600 <h4>type name</h4> 601 602 <div> 603 </div> 604 605 </div> <!-- /apiItem --> 606 607 </div> <!-- /apiGroup --> 608 609 </div> <!-- /apiPage --> 610 </div> <!-- /gc-pagecontent --> 611 </div> <!-- /g-section --> 612 </div> <!-- /codesiteContent --> 613 <div id="gc-footer" --=""> 614 <div class="text"> 615 <p> 616 Except as otherwise <a href="http://code.google.com/policies.html#restrictions">noted</a>, 617 the content of this page is licensed under the <a rel="license" href="http://creativecommons.org/licenses/by/3.0/">Creative Commons 618 Attribution 3.0 License</a>, and code samples are licensed under the 619 <a rel="license" href="http://code.google.com/google_bsd_license.html">BSD License</a>. 620 </p> 621 <p> 622 ©2011 Google 623 </p> 624 625<!-- begin analytics --> 626<script src="http://www.google-analytics.com/urchin.js" type="text/javascript"></script> 627<script src="http://www.google-analytics.com/ga.js" type="text/javascript"></script> 628 629<script type="text/javascript"> 630 // chrome doc tracking 631 try { 632 var engdocs = _gat._getTracker("YT-10763712-2"); 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