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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 [ | |
6 { | |
7 "namespace": "runtime", | |
8 "description": "Use the <code>chrome.runtime</code> API to retrieve the back
ground page, return details about the manifest, and listen for and respond to ev
ents in the app or extension lifecycle. You can also use this API to convert the
relative path of URLs to fully-qualified URLs.", | |
9 "types": [ | |
10 { | |
11 "id": "Port", | |
12 "type": "object", | |
13 "nocompile": true, | |
14 "description": "An object which allows two way communication with other
pages.", | |
15 "properties": { | |
16 "name": {"type": "string"}, | |
17 "disconnect": { "type": "function" }, | |
18 "onDisconnect": { "$ref": "events.Event" }, | |
19 "onMessage": { "$ref": "events.Event" }, | |
20 "postMessage": {"type": "function"}, | |
21 "sender": { | |
22 "$ref": "MessageSender", | |
23 "optional": true, | |
24 "description": "This property will <b>only</b> be present on ports p
assed to onConnect/onConnectExternal listeners." | |
25 } | |
26 }, | |
27 "additionalProperties": { "type": "any"} | |
28 }, | |
29 { | |
30 "id": "MessageSender", | |
31 "type": "object", | |
32 "description": "An object containing information about the script contex
t that sent a message or request.", | |
33 "properties": { | |
34 "tab": {"$ref": "tabs.Tab", "optional": true, "description": "The $(re
f:tabs.Tab) which opened the connection, if any. This property will <strong>only
</strong> be present when the connection was opened from a tab (including conten
t scripts), and <strong>only</strong> if the receiver is an extension, not an ap
p."}, | |
35 "id": {"type": "string", "optional": true, "description": "The ID of t
he extension or app that opened the connection, if any."}, | |
36 "url": {"type": "string", "optional": true, "description": "The URL of
the page or frame that opened the connection, if any. This property will <stron
g>only</strong> be present when the connection was opened from a tab or content
script."}, | |
37 "tlsChannelId": {"type": "string", "optional": true, "description": "T
he TLS channel ID of the web page that opened the connection, if requested by th
e extension or app, and if available."} | |
38 } | |
39 } | |
40 ], | |
41 "properties": { | |
42 "lastError": { | |
43 "type": "object", | |
44 "optional": true, | |
45 "description": "This will be defined during an API method callback if th
ere was an error", | |
46 "properties": { | |
47 "message": { | |
48 "optional": true, | |
49 "type": "string", | |
50 "description": "Details about the error which occurred." | |
51 } | |
52 } | |
53 }, | |
54 "id": { | |
55 "type": "string", | |
56 "description": "The ID of the extension/app." | |
57 } | |
58 }, | |
59 "functions": [ | |
60 { | |
61 "name": "getBackgroundPage", | |
62 "type": "function", | |
63 "description": "Retrieves the JavaScript 'window' object for the backgro
und page running inside the current extension/app. If the background page is an
event page, the system will ensure it is loaded before calling the callback. If
there is no background page, an error is set.", | |
64 "parameters": [ | |
65 { | |
66 "type": "function", | |
67 "name": "callback", | |
68 "parameters": [ | |
69 { | |
70 "name": "backgroundPage", | |
71 // Note: Only optional because we don't support validation | |
72 // for custom callbacks. | |
73 "optional": true, | |
74 "type": "object", | |
75 "isInstanceOf": "Window", | |
76 "additionalProperties": { "type": "any" }, | |
77 "description": "The JavaScript 'window' object for the backgroun
d page." | |
78 } | |
79 ] | |
80 } | |
81 ] | |
82 }, | |
83 { | |
84 "name": "getManifest", | |
85 "description": "Returns details about the app or extension from the mani
fest. The object returned is a serialization of the full <a href=\"manifest.html
\">manifest file</a>.", | |
86 "type": "function", | |
87 "nocompile": true, | |
88 "parameters": [], | |
89 "returns": { | |
90 "type": "object", | |
91 "properties": {}, | |
92 "additionalProperties": { "type": "any" }, | |
93 "description": "The manifest details." | |
94 } | |
95 }, | |
96 { | |
97 "name": "getURL", | |
98 "type": "function", | |
99 "nocompile": true, | |
100 "description": "Converts a relative path within an app/extension install
directory to a fully-qualified URL.", | |
101 "parameters": [ | |
102 { | |
103 "type": "string", | |
104 "name": "path", | |
105 "description": "A path to a resource within an app/extension express
ed relative to its install directory." | |
106 } | |
107 ], | |
108 "returns": { | |
109 "type": "string", | |
110 "description": "The fully-qualified URL to the resource." | |
111 } | |
112 }, | |
113 { | |
114 "name": "setUninstallURL", | |
115 "type": "function", | |
116 "description": "Sets the URL to be visited upon uninstallation. This may
be used to clean up server-side data, do analytics, and implement surveys. Maxi
mum 255 characters.", | |
117 "parameters": [ | |
118 { | |
119 "type": "string", | |
120 "name": "url", | |
121 "maxLength": 255 | |
122 } | |
123 ] | |
124 }, | |
125 { | |
126 "name": "reload", | |
127 "description": "Reloads the app or extension.", | |
128 "type": "function", | |
129 "parameters": [] | |
130 }, | |
131 { | |
132 "name": "requestUpdateCheck", | |
133 "type": "function", | |
134 "description": "Requests an update check for this app/extension.", | |
135 "parameters": [ | |
136 { | |
137 "type": "function", | |
138 "name": "callback", | |
139 "parameters": [ | |
140 { | |
141 "name": "status", | |
142 "type": "string", | |
143 "enum": ["throttled", "no_update", "update_available"], | |
144 "description": "Result of the update check." | |
145 }, | |
146 { | |
147 "name": "details", | |
148 "type": "object", | |
149 "optional": true, | |
150 "properties": { | |
151 "version": { | |
152 "type": "string", | |
153 "description": "The version of the available update." | |
154 } | |
155 }, | |
156 "description": "If an update is available, this contains more in
formation about the available update." | |
157 } | |
158 ] | |
159 } | |
160 ] | |
161 }, | |
162 { | |
163 "name": "restart", | |
164 "description": "Restart the ChromeOS device when the app runs in kiosk m
ode. Otherwise, it's no-op.", | |
165 "type": "function", | |
166 "parameters": [] | |
167 }, | |
168 { | |
169 "name": "connect", | |
170 "type": "function", | |
171 "nocompile": true, | |
172 "description": "Attempts to connect to connect listeners within an exten
sion/app (such as the background page), or other extensions/apps. This is useful
for content scripts connecting to their extension processes, inter-app/extensio
n communication, and <a href=\"manifest/externally_connectable.html\">web messag
ing</a>. Note that this does not connect to any listeners in a content script. E
xtensions may connect to content scripts embedded in tabs via $(ref:tabs.connect
).", | |
173 "parameters": [ | |
174 {"type": "string", "name": "extensionId", "optional": true, "descripti
on": "The ID of the extension or app to connect to. If omitted, a connection wil
l be attempted with your own extension. Required if sending messages from a web
page for <a href=\"manifest/externally_connectable.html\">web messaging</a>."}, | |
175 { | |
176 "type": "object", | |
177 "name": "connectInfo", | |
178 "properties": { | |
179 "name": { "type": "string", "optional": true, "description": "Will
be passed into onConnect for processes that are listening for the connection ev
ent." }, | |
180 "includeTlsChannelId": { "type": "boolean", "optional": true, "des
cription": "Whether the TLS channel ID will be passed into onConnectExternal for
processes that are listening for the connection event." } | |
181 }, | |
182 "optional": true | |
183 } | |
184 ], | |
185 "returns": { | |
186 "$ref": "Port", | |
187 "description": "Port through which messages can be sent and received.
The port's $(ref:runtime.Port onDisconnect) event is fired if the extension/app
does not exist. " | |
188 } | |
189 }, | |
190 { | |
191 "name": "connectNative", | |
192 "type": "function", | |
193 "nocompile": true, | |
194 "description": "Connects to a native application in the host machine.", | |
195 "parameters": [ | |
196 { | |
197 "type": "string", | |
198 "name": "application", | |
199 "description": "The name of the registered application to connect to
." | |
200 } | |
201 ], | |
202 "returns": { | |
203 "$ref": "Port", | |
204 "description": "Port through which messages can be sent and received w
ith the application" | |
205 } | |
206 }, | |
207 { | |
208 "name": "sendMessage", | |
209 "type": "function", | |
210 "nocompile": true, | |
211 "allowAmbiguousOptionalArguments": true, | |
212 "description": "Sends a single message to event listeners within your ex
tension/app or a different extension/app. Similar to $(ref:runtime.connect) but
only sends a single message, with an optional response. If sending to your exten
sion, the $(ref:runtime.onMessage) event will be fired in each page, or $(ref:ru
ntime.onMessageExternal), if a different extension. Note that extensions cannot
send messages to content scripts using this method. To send messages to content
scripts, use $(ref:tabs.sendMessage).", | |
213 "parameters": [ | |
214 {"type": "string", "name": "extensionId", "optional": true, "descripti
on": "The ID of the extension/app to send the message to. If omitted, the messag
e will be sent to your own extension/app. Required if sending messages from a we
b page for <a href=\"manifest/externally_connectable.html\">web messaging</a>."}
, | |
215 { "type": "any", "name": "message" }, | |
216 { | |
217 "type": "object", | |
218 "name": "options", | |
219 "properties": { | |
220 "includeTlsChannelId": { "type": "boolean", "optional": true, "des
cription": "Whether the TLS channel ID will be passed into onMessageExternal for
processes that are listening for the connection event." } | |
221 }, | |
222 "optional": true | |
223 }, | |
224 { | |
225 "type": "function", | |
226 "name": "responseCallback", | |
227 "optional": true, | |
228 "parameters": [ | |
229 { | |
230 "name": "response", | |
231 "type": "any", | |
232 "description": "The JSON response object sent by the handler of
the message. If an error occurs while connecting to the extension, the callback
will be called with no arguments and $(ref:runtime.lastError) will be set to the
error message." | |
233 } | |
234 ] | |
235 } | |
236 ] | |
237 }, | |
238 { | |
239 "name": "sendNativeMessage", | |
240 "type": "function", | |
241 "nocompile": true, | |
242 "description": "Send a single message to a native application.", | |
243 "parameters": [ | |
244 { | |
245 "name": "application", | |
246 "description": "The name of the native messaging host.", | |
247 "type": "string" | |
248 }, | |
249 { | |
250 "name": "message", | |
251 "description": "The message that will be passed to the native messag
ing host.", | |
252 "type": "object", | |
253 "additionalProperties": { | |
254 "type": "any" | |
255 } | |
256 }, | |
257 { | |
258 "type": "function", | |
259 "name": "responseCallback", | |
260 "optional": true, | |
261 "parameters": [ | |
262 { | |
263 "name": "response", | |
264 "type": "any", | |
265 "description": "The response message sent by the native messagin
g host. If an error occurs while connecting to the native messaging host, the ca
llback will be called with no arguments and $(ref:runtime.lastError) will be set
to the error message.", | |
266 "additionalProperties": { | |
267 "type": "any" | |
268 } | |
269 } | |
270 ] | |
271 } | |
272 ] | |
273 }, | |
274 { | |
275 "name": "getPlatformInfo", | |
276 "type": "function", | |
277 "description": "Returns information about the current platform.", | |
278 "parameters": [ | |
279 { | |
280 "type": "function", | |
281 "name": "callback", | |
282 "description": "Called with results", | |
283 "parameters": [ | |
284 { | |
285 "name": "platformInfo", | |
286 "type": "object", | |
287 "properties": { | |
288 "os": { | |
289 "type": "string", | |
290 "description": "The operating system chrome is running on.", | |
291 "enum": ["mac", "win", "android", "cros", "linux", "openbsd"
] | |
292 }, | |
293 "arch": { | |
294 "type": "string", | |
295 "enum": ["arm", "x86-32", "x86-64"], | |
296 "description": "The machine's processor architecture." | |
297 }, | |
298 "nacl_arch" : { | |
299 "description": "The native client architecture. This may be
different from arch on some platforms.", | |
300 "type": "string", | |
301 "enum": ["arm", "x86-32", "x86-64"] | |
302 } | |
303 } | |
304 } | |
305 ] | |
306 } | |
307 ] | |
308 }, | |
309 { | |
310 "name": "getPackageDirectoryEntry", | |
311 "type": "function", | |
312 "description": "Returns a DirectoryEntry for the package directory.", | |
313 "parameters": [ | |
314 { | |
315 "type": "function", | |
316 "name": "callback", | |
317 "parameters": [ | |
318 { | |
319 "name": "directoryEntry", | |
320 "type": "object", | |
321 "additionalProperties": { "type": "any" }, | |
322 "isInstanceOf": "DirectoryEntry" | |
323 } | |
324 ] | |
325 } | |
326 ] | |
327 } | |
328 ], | |
329 "events": [ | |
330 { | |
331 "name": "onStartup", | |
332 "type": "function", | |
333 "description": "Fired when a profile that has this extension installed f
irst starts up. This event is not fired when an incognito profile is started, ev
en if this extension is operating in 'split' incognito mode." | |
334 }, | |
335 { | |
336 "name": "onInstalled", | |
337 "type": "function", | |
338 "description": "Fired when the extension is first installed, when the ex
tension is updated to a new version, and when Chrome is updated to a new version
.", | |
339 "parameters": [ | |
340 { | |
341 "type": "object", | |
342 "name": "details", | |
343 "properties": { | |
344 "reason": { | |
345 "type": "string", | |
346 "enum": ["install", "update", "chrome_update"], | |
347 "description": "The reason that this event is being dispatched." | |
348 }, | |
349 "previousVersion": { | |
350 "type": "string", | |
351 "optional": true, | |
352 "description": "Indicates the previous version of the extension,
which has just been updated. This is present only if 'reason' is 'update'." | |
353 } | |
354 } | |
355 } | |
356 ] | |
357 }, | |
358 { | |
359 "name": "onSuspend", | |
360 "type": "function", | |
361 "description": "Sent to the event page just before it is unloaded. This
gives the extension opportunity to do some clean up. Note that since the page is
unloading, any asynchronous operations started while handling this event are no
t guaranteed to complete. If more activity for the event page occurs before it g
ets unloaded the onSuspendCanceled event will be sent and the page won't be unlo
aded. " | |
362 }, | |
363 { | |
364 "name": "onSuspendCanceled", | |
365 "type": "function", | |
366 "description": "Sent after onSuspend to indicate that the app won't be u
nloaded after all." | |
367 }, | |
368 { | |
369 "name": "onUpdateAvailable", | |
370 "type": "function", | |
371 "description": "Fired when an update is available, but isn't installed i
mmediately because the app is currently running. If you do nothing, the update w
ill be installed the next time the background page gets unloaded, if you want it
to be installed sooner you can explicitly call chrome.runtime.reload().", | |
372 "parameters": [ | |
373 { | |
374 "type": "object", | |
375 "name": "details", | |
376 "properties": { | |
377 "version": { | |
378 "type": "string", | |
379 "description": "The version number of the available update." | |
380 } | |
381 }, | |
382 "additionalProperties": { "type": "any" }, | |
383 "description": "The manifest details of the available update." | |
384 } | |
385 ] | |
386 }, | |
387 { | |
388 // TODO(xiyuan): onBrowserUpdateAvailable is deprecated in favor of | |
389 // onRestartRequired. We should remove it when we are sure it is unused. | |
390 "name": "onBrowserUpdateAvailable", | |
391 "type": "function", | |
392 "description": "Fired when a Chrome update is available, but isn't insta
lled immediately because a browser restart is required.", | |
393 "deprecated": "Please use $(ref:runtime.onRestartRequired).", | |
394 "parameters": [] | |
395 }, | |
396 { | |
397 "name": "onConnect", | |
398 "type": "function", | |
399 "nocompile": true, | |
400 "options": { | |
401 "unmanaged": true | |
402 }, | |
403 "description": "Fired when a connection is made from either an extension
process or a content script.", | |
404 "parameters": [ | |
405 {"$ref": "Port", "name": "port"} | |
406 ] | |
407 }, | |
408 { | |
409 "name": "onConnectExternal", | |
410 "type": "function", | |
411 "nocompile": true, | |
412 "options": { | |
413 "unmanaged": true | |
414 }, | |
415 "description": "Fired when a connection is made from another extension."
, | |
416 "parameters": [ | |
417 {"$ref": "Port", "name": "port"} | |
418 ] | |
419 }, | |
420 { | |
421 "name": "onMessage", | |
422 "type": "function", | |
423 "options": { | |
424 "unmanaged": true | |
425 }, | |
426 "description": "Fired when a message is sent from either an extension pr
ocess or a content script.", | |
427 "parameters": [ | |
428 {"name": "message", "type": "any", "optional": true, "description": "T
he message sent by the calling script."}, | |
429 {"name": "sender", "$ref": "MessageSender" }, | |
430 {"name": "sendResponse", "type": "function", "description": "Function
to call (at most once) when you have a response. The argument should be any JSON
-ifiable object. If you have more than one <code>onMessage</code> listener in th
e same document, then only one may send a response. This function becomes invali
d when the event listener returns, unless you return true from the event listene
r to indicate you wish to send a response asynchronously (this will keep the mes
sage channel open to the other end until <code>sendResponse</code> is called)."
} | |
431 ], | |
432 "returns": { | |
433 "type": "boolean", | |
434 "optional": true, | |
435 "description": "Return true from the event listener if you wish to cal
l <code>sendResponse</code> after the event listener returns." | |
436 } | |
437 }, | |
438 { | |
439 "name": "onMessageExternal", | |
440 "type": "function", | |
441 "options": { | |
442 "unmanaged": true | |
443 }, | |
444 "description": "Fired when a message is sent from another extension/app.
Cannot be used in a content script.", | |
445 "parameters": [ | |
446 {"name": "message", "type": "any", "optional": true, "description": "T
he message sent by the calling script."}, | |
447 {"name": "sender", "$ref": "MessageSender" }, | |
448 {"name": "sendResponse", "type": "function", "description": "Function
to call (at most once) when you have a response. The argument should be any JSON
-ifiable object. If you have more than one <code>onMessage</code> listener in th
e same document, then only one may send a response. This function becomes invali
d when the event listener returns, unless you return true from the event listene
r to indicate you wish to send a response asynchronously (this will keep the mes
sage channel open to the other end until <code>sendResponse</code> is called)."
} | |
449 ], | |
450 "returns": { | |
451 "type": "boolean", | |
452 "optional": true, | |
453 "description": "Return true from the event listener if you wish to cal
l <code>sendResponse</code> after the event listener returns." | |
454 } | |
455 }, | |
456 { | |
457 "name": "onRestartRequired", | |
458 "type": "function", | |
459 "description": "Fired when an app or the device that it runs on needs to
be restarted. The app should close all its windows at its earliest convenient t
ime to let the restart to happen. If the app does nothing, a restart will be enf
orced after a 24-hour grace period has passed. Currently, this event is only fir
ed for Chrome OS kiosk apps.", | |
460 "parameters": [ | |
461 { | |
462 "type": "string", | |
463 "name": "reason", | |
464 "description": "The reason that the event is being dispatched. 'app_
update' is used when the restart is needed because the application is updated to
a newer version. 'os_update' is used when the restart is needed because the bro
wser/OS is updated to a newer version. 'periodic' is used when the system runs f
or more than the permitted uptime set in the enterprise policy.", | |
465 "enum": ["app_update", "os_update", "periodic"] | |
466 } | |
467 ] | |
468 } | |
469 ] | |
470 } | |
471 ] | |
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