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| 188 <h1 class="page_title">Desktop Notifications</h1> | |
| 189 </div> | |
| 190 <!-- TABLE OF CONTENTS --> | |
| 191 <div id="toc"> | |
| 192 <h2>Contents</h2> | |
| 193 <ol> | |
| 194 <li> | |
| 195 <a href="#manifest">Manifest</a> | |
| 196 <ol> | |
| 197 </ol> | |
| 198 </li><li> | |
| 199 <a href="#communication">Communicating with other views</a> | |
| 200 <ol> | |
| 201 </ol> | |
| 202 </li><li> | |
| 203 <a href="#examples"> Examples </a> | |
| 204 <ol> | |
| 205 </ol> | |
| 206 </li><li> | |
| 207 <a href="#api">API</a> | |
| 208 <ol> | |
| 209 </ol> | |
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| 216 <div id="static"><div id="pageData-name" class="pageData">Desktop Notifi
cations</div> | |
| 217 <div id="pageData-showTOC" class="pageData">true</div> | |
| 218 <!-- BEGIN AUTHORED CONTENT --> | |
| 219 <p> | |
| 220 Use desktop notifications to notify users that something | |
| 221 important has happened. | |
| 222 Notifications appear outside the browser window. | |
| 223 As the following snapshots show, | |
| 224 the details of how notifications look | |
| 225 and where they're shown depend on the platform. | |
| 226 </p> | |
| 227 <img src="images/notification-windows.png" width="28%" style="margin:2em 0.5em 1
em; border:1px solid black;" alt="Notifications on Microsoft Windows"> | |
| 228 <img src="images/notification-mac.png" width="28%" style="margin:2em 0.5em 1em;
border:1px solid black;" alt="Notifications on Mac OS X"> | |
| 229 <img src="images/notification-linux.png" width="28%" style="margin:2em 0.5em 1em
; border:1px solid black;" alt="Notifications on Ubuntu Linux"> | |
| 230 <p> | |
| 231 You create the notification window | |
| 232 using a bit of JavaScript and, optionally, | |
| 233 an HTML page packaged inside your extension. | |
| 234 </p> | |
| 235 <h2 id="manifest">Manifest</h2> | |
| 236 <p> | |
| 237 You can request the notification permission | |
| 238 in the <a href="manifest.html">extension manifest</a>, | |
| 239 like this: | |
| 240 </p> | |
| 241 <pre>{ | |
| 242 "name": "My extension", | |
| 243 ... | |
| 244 <b> "permissions": [ | |
| 245 "notifications" | |
| 246 ]</b>, | |
| 247 ... | |
| 248 }</pre> | |
| 249 <p class="note"> | |
| 250 <b>Note:</b> Extensions that declare | |
| 251 the <code>notifications</code> permission | |
| 252 are always allowed to create notifications. | |
| 253 There is no need to call | |
| 254 <code>webkitNotifications.checkPermission()</code>. | |
| 255 </p> | |
| 256 <h2 id="communication">Communicating with other views</h2> | |
| 257 <p> | |
| 258 You can communicate between a notification | |
| 259 and other views in your extension using | |
| 260 <a href="extension.html#method-getBackgroundPage">getBackgroundPage()</a> and | |
| 261 <a href="extension.html#method-getViews">getViews()</a>. For example: | |
| 262 </p> | |
| 263 <pre>// Inside a notification... | |
| 264 chrome.extension.getBackgroundPage().doThing(); | |
| 265 // From the background page... | |
| 266 chrome.extension.getViews({type:"notification"}).forEach(function(win) { | |
| 267 win.doOtherThing(); | |
| 268 }); | |
| 269 </pre> | |
| 270 <h2 id="examples"> Examples </h2> | |
| 271 <p> | |
| 272 You can find a simple example | |
| 273 of using notifications in the | |
| 274 <a href="http://src.chromium.org/viewvc/chrome/trunk/src/chrome/common/extension
s/docs/examples/api/notifications/">examples/api/notifications</a> | |
| 275 directory. | |
| 276 For other examples | |
| 277 and for help in viewing the source code, | |
| 278 see <a href="samples.html">Samples</a>. | |
| 279 </p> | |
| 280 <p> | |
| 281 Also see html5rocks.com's | |
| 282 <a href="http://www.html5rocks.com/tutorials/notifications/quick/">notifications
tutorial</a>. | |
| 283 Ignore the permission-related code; | |
| 284 it's unnecessary if you declare the "notifications" permission. | |
| 285 </p> | |
| 286 <h2 id="api">API</h2> | |
| 287 <p> | |
| 288 The desktop notification API for extensions | |
| 289 is the same one that | |
| 290 is available to normal web pages. | |
| 291 As the following code shows, | |
| 292 you first create either a simple text notification | |
| 293 or an HTML notification, | |
| 294 and then you show the notification. | |
| 295 </p> | |
| 296 <pre>// Create a simple text notification: | |
| 297 var notification = webkitNotifications.createNotification( | |
| 298 '48.png', // icon url - can be relative | |
| 299 'Hello!', // notification title | |
| 300 'Lorem ipsum...' // notification body text | |
| 301 ); | |
| 302 // Or create an HTML notification: | |
| 303 var notification = webkitNotifications.createHTMLNotification( | |
| 304 'notification.html' // html url - can be relative | |
| 305 ); | |
| 306 // Then show the notification. | |
| 307 notification.show(); | |
| 308 </pre> | |
| 309 <p>For complete API details, | |
| 310 see the <a href="http://dev.chromium.org/developers/design-documents/desktop-not
ifications/api-specification">Desktop notifications draft specification</a>.</p> | |
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