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docs: Cleanup the IPC docs

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Cheng Zhao 2016-02-16 11:34:39 +08:00
parent 63578f9d2b
commit b8e8e4c930
3 changed files with 61 additions and 53 deletions
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docs/api/ipc-main.md
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@ -9,7 +9,7 @@ module.
## Sending Messages
It is also possible to send messages from the main process to the renderer
process, see [webContents.send](web-contents.md#webcontentssendchannel-arg1-arg2-) for more information.
process, see [webContents.send][web-contents-send] for more information.
* When sending a message, the event name is the `channel`.
* To reply a synchronous message, you need to set `event.returnValue`.
@ -48,37 +48,37 @@ ipcRenderer.send('asynchronous-message', 'ping');
The `ipcMain` module has the following method to listen for events:
### `ipcMain.on(channel, callback)`
### `ipcMain.on(channel, listener)`
* `channel` String - The event name.
* `callback` Function
* `channel` String
* `listener` Function
When the event occurs the `callback` is called with an `event` object and
arbitrary arguments.
Listens to `channel`, when a new message arrives `listener` would be called with
`listener(event, args...)`.
### `ipcMain.removeListener(channel, callback)`
### `ipcMain.once(channel, listener)`
* `channel` String - The event name.
* `callback` Function - The reference to the same function that you used for
`ipcMain.on(channel, callback)`
* `channel` String
* `listener` Function
Once done listening for messages, if you no longer want to activate this
callback and for whatever reason can't merely stop sending messages on the
channel, this function will remove the callback handler for the specified
channel.
Adds a one time `listener` function for the event. This `listener` is invoked
only the next time a message is sent to `channel`, after which it is removed.
### `ipcMain.removeAllListeners(channel)`
### `ipcMain.removeListener(channel, listener)`
* `channel` String - The event name.
* `channel` String
* `listener` Function
This removes *all* handlers to this ipc channel.
Removes the specified `listener` from the listener array for the specified
`channel`.
### `ipcMain.once(channel, callback)`
### `ipcMain.removeAllListeners([channel])`
Use this in place of `ipcMain.on()` to fire handlers meant to occur only once,
as in, they won't be activated after one call of `callback`
* `channel` String (optional)
## IPC Event
Removes all listeners, or those of the specified `channel`.
## Event object
The `event` object passed to the `callback` has the following methods:
@ -90,4 +90,6 @@ Set this to the value to be returned in a synchronous message.
Returns the `webContents` that sent the message, you can call
`event.sender.send` to reply to the asynchronous message, see
[webContents.send](web-contents.md#webcontentssendchannel-arg1-arg2-) for more information.
[webContents.send][web-contents-send] for more information.
[web-contents-send]: web-contents.md#webcontentssendchannel-arg1-arg2-