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Merge pull request #8572 from electron/content-tracing-app-ready

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Document using content tracing after app ready
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Kevin Sawicki 2017-02-03 09:53:53 -08:00 • committed by GitHub
commit 2f3578679f
1 changed files with 18 additions and 12 deletions
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30
docs/api/content-tracing.md
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@ -9,22 +9,28 @@ This module does not include a web interface so you need to open
`chrome://tracing/` in a Chrome browser and load the generated file to view the `chrome://tracing/` in a Chrome browser and load the generated file to view the
result. result.
**Note:** You should not use this module until the `ready` event of the app
module is emitted.
```javascript ```javascript
const {contentTracing} = require('electron') const {app, contentTracing} = require('electron')
const options = { app.on('ready', () => {
categoryFilter: '*', const options = {
traceOptions: 'record-until-full,enable-sampling' categoryFilter: '*',
} traceOptions: 'record-until-full,enable-sampling'
}
contentTracing.startRecording(options, () => { contentTracing.startRecording(options, () => {
console.log('Tracing started') console.log('Tracing started')
setTimeout(() => { setTimeout(() => {
contentTracing.stopRecording('', (path) => { contentTracing.stopRecording('', (path) => {
console.log('Tracing data recorded to ' + path) console.log('Tracing data recorded to ' + path)
}) })
}, 5000) }, 5000)
})
}) })
``` ```