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173 <div class="line"> </div> | |
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188 <h1 class="page_title">chrome.experimental.runtime</h1> | |
189 </div> | |
190 <!-- TABLE OF CONTENTS --> | |
191 <div id="toc"> | |
192 <h2>Contents</h2> | |
193 <ol> | |
194 <li> | |
195 <a href="#apiReference">API reference: chrome.experimental.runti
me</a> | |
196 <ol> | |
197 <li> | |
198 <a href="#global-methods">Methods</a> | |
199 <ol> | |
200 <li> | |
201 <a href="#method-getBackgroundPage">getBackgroundPage</a> | |
202 </li> | |
203 </ol> | |
204 </li> | |
205 <li> | |
206 <a href="#global-events">Events</a> | |
207 <ol> | |
208 <li> | |
209 <a href="#event-onBackgroundPageUnloadingSoon">onBackgroundPageU
nloadingSoon</a> | |
210 </li><li> | |
211 <a href="#event-onInstalled">onInstalled</a> | |
212 </li> | |
213 </ol> | |
214 </li> | |
215 </ol> | |
216 </li> | |
217 </ol> | |
218 </div> | |
219 <!-- /TABLE OF CONTENTS --> | |
220 <!-- Standard content lead-in for experimental API pages --> | |
221 <p id="classSummary"> | |
222 For information on how to use experimental APIs, see the <a href="expe
rimental.html">chrome.experimental.* APIs</a> page. | |
223 </p> | |
224 <!-- STATIC CONTENT PLACEHOLDER --> | |
225 <div id="static"></div> | |
226 <!-- API PAGE --> | |
227 <div class="apiPage"> | |
228 <a name="apiReference"></a> | |
229 <h2>API reference: chrome.experimental.runtime</h2> | |
230 <!-- PROPERTIES --> | |
231 <!-- /apiGroup --> | |
232 <!-- METHODS --> | |
233 <div id="methodsTemplate" class="apiGroup"> | |
234 <a name="global-methods"></a> | |
235 <h3>Methods</h3> | |
236 <!-- iterates over all functions --> | |
237 <div class="apiItem"> | |
238 <a name="method-getBackgroundPage"></a> <!-- method-anchor --> | |
239 <h4>getBackgroundPage</h4> | |
240 <div class="summary"> | |
241 <!-- Note: intentionally longer 80 columns --> | |
242 <span>chrome.experimental.runtime.getBackgroundPage</span>(<sp
an class="null"><span>function</span> | |
243 <var><span>callback</span></var></span>)</div> | |
244 <div class="description"> | |
245 <p>Retrieves the JavaScript 'window' object for the background p
age running inside the current extension. If the background page is transient, t
he system will ensure it is loaded before calling the callback. If there is no b
ackground page, an error is set.</p> | |
246 <!-- PARAMETERS --> | |
247 <h4>Parameters</h4> | |
248 <dl> | |
249 <div> | |
250 <div> | |
251 <dt> | |
252 <var>callback</var> | |
253 <em> | |
254 <!-- TYPE --> | |
255 <div style="display:inline"> | |
256 ( | |
257 <span id="typeTemplate"> | |
258 <span> | |
259 <span>function</span> | |
260 </span> | |
261 </span> | |
262 ) | |
263 </div> | |
264 </em> | |
265 </dt> | |
266 <dd class="todo"> | |
267 Undocumented. | |
268 </dd> | |
269 <!-- OBJECT PROPERTIES --> | |
270 <!-- OBJECT METHODS --> | |
271 <!-- OBJECT EVENT FIELDS --> | |
272 <!-- FUNCTION PARAMETERS --> | |
273 </div> | |
274 </div> | |
275 </dl> | |
276 <!-- RETURNS --> | |
277 <dl> | |
278 </dl> | |
279 <!-- CALLBACK --> | |
280 <div> | |
281 <div> | |
282 <h4>Callback function</h4> | |
283 <p> | |
284 The callback <em>parameter</em> should specify a function | |
285 that looks like this: | |
286 </p> | |
287 <!-- Note: intentionally longer 80 columns --> | |
288 <pre>function(<span>global backgroundPage</span>) <span class=
"subdued">{...}</span>;</pre> | |
289 <dl> | |
290 <div> | |
291 <div> | |
292 <dt> | |
293 <var>backgroundPage</var> | |
294 <em> | |
295 <!-- TYPE --> | |
296 <div style="display:inline"> | |
297 ( | |
298 <span class="optional">optional</span> | |
299 <span id="typeTemplate"> | |
300 <span> | |
301 <span>global</span> | |
302 </span> | |
303 </span> | |
304 ) | |
305 </div> | |
306 </em> | |
307 </dt> | |
308 <dd>The JavaScript 'window' object for the background page.</dd> | |
309 <!-- OBJECT PROPERTIES --> | |
310 <!-- OBJECT METHODS --> | |
311 <!-- OBJECT EVENT FIELDS --> | |
312 <!-- FUNCTION PARAMETERS --> | |
313 </div> | |
314 </div> | |
315 </dl> | |
316 </div> | |
317 </div> | |
318 <!-- MIN_VERSION --> | |
319 </div> <!-- /description --> | |
320 </div> <!-- /apiItem --> | |
321 </div> <!-- /apiGroup --> | |
322 <!-- EVENTS --> | |
323 <div id="eventsTemplate" class="apiGroup"> | |
324 <a name="global-events"></a> | |
325 <h3>Events</h3> | |
326 <!-- iterates over all events --> | |
327 <div class="apiItem"> | |
328 <a name="event-onBackgroundPageUnloadingSoon"></a> | |
329 <h4>onBackgroundPageUnloadingSoon</h4> | |
330 <div class="summary"> | |
331 <!-- Note: intentionally longer 80 columns --> | |
332 <span class="subdued">chrome.experimental.runtime.</span><span>o
nBackgroundPageUnloadingSoon</span><span class="subdued">.addListener</span>(fun
ction(<span></span>) <span class="subdued">{...}</span><span></span>); | |
333 </div> | |
334 <div class="description"> | |
335 <p>Sent to the transient background page just before it is unloa
ded. This gives the extension opportunity to do some clean up. Note that since t
he page is unloading, any asynchronous operations started while handling this ev
ent are not guaranteed to complete.</p> | |
336 <!-- LISTENER PARAMETERS --> | |
337 <!-- EXTRA PARAMETERS --> | |
338 <!-- LISTENER RETURN VALUE --> | |
339 <dl> | |
340 </dl> | |
341 </div> <!-- /description --> | |
342 <!-- /description --> | |
343 </div><div class="apiItem"> | |
344 <a name="event-onInstalled"></a> | |
345 <h4>onInstalled</h4> | |
346 <div class="summary"> | |
347 <!-- Note: intentionally longer 80 columns --> | |
348 <span class="subdued">chrome.experimental.runtime.</span><span>o
nInstalled</span><span class="subdued">.addListener</span>(function(<span></span
>) <span class="subdued">{...}</span><span></span>); | |
349 </div> | |
350 <div class="description"> | |
351 <p>Fired when the extension is first installed.</p> | |
352 <!-- LISTENER PARAMETERS --> | |
353 <!-- EXTRA PARAMETERS --> | |
354 <!-- LISTENER RETURN VALUE --> | |
355 <dl> | |
356 </dl> | |
357 </div> <!-- /description --> | |
358 <!-- /description --> | |
359 </div> <!-- /apiItem --> | |
360 </div> <!-- /apiGroup --> | |
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