462 lines
9.6 KiB
Markdown
462 lines
9.6 KiB
Markdown
# API Contract
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Breaking changes will be documented here, and deprecation warnings added to JS code where possible, at least [one major version](../tutorial/electron-versioning.md#semver) before the change is made.
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## `FIXME` comments
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The `FIXME` string is used in code comments to denote things that should be fixed for future releases. See https://github.com/electron/electron/search?q=fixme
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## Planned Breaking API Changes (6.0)
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### `win.setMenu(null)`
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```js
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// Deprecated
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win.setMenu(null)
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// Replace with
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win.removeMenu()
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```
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### `contentTracing.getTraceBufferUsage()`
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```js
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// Deprecated
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contentTracing.getTraceBufferUsage((percentage, value) => {
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// do something
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})
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// Replace with
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contentTracing.getTraceBufferUsage().then(infoObject => {
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// infoObject has percentage and value fields
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})
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```
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### `electron.screen` in renderer process
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```js
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// Deprecated
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require('electron').screen
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// Replace with
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require('electron').remote.screen
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```
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### `require` in sandboxed renderers
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```js
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// Deprecated
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require('child_process')
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// Replace with
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require('electron').remote.require('child_process')
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// Deprecated
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require('fs')
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// Replace with
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require('electron').remote.require('fs')
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// Deprecated
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require('os')
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// Replace with
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require('electron').remote.require('os')
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// Deprecated
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require('path')
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// Replace with
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require('electron').remote.require('path')
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```
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### `powerMonitor.querySystemIdleState`
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```js
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// Deprecated
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powerMonitor.querySystemIdleState(threshold, callback)
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// Replace with synchronous API
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const idleState = getSystemIdleState(threshold)
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```
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### `powerMonitor.querySystemIdleTime`
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```js
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// Deprecated
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powerMonitor.querySystemIdleTime(callback)
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// Replace with synchronous API
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const idleTime = getSystemIdleTime()
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```
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## `app.enableMixedSandbox`
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```js
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// Deprecated
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app.enableMixedSandbox()
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```
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Mixed-sandbox mode is now enabled by default.
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### Preload scripts outside of app path are not allowed
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For security reasons, preload scripts can only be loaded from a subpath of the [app path](app.md#appgetapppath).
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## Planned Breaking API Changes (5.0)
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### `new BrowserWindow({ webPreferences })`
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The following `webPreferences` option default values are deprecated in favor of the new defaults listed below.
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| Property | Deprecated Default | New Default |
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|----------|--------------------|-------------|
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| `contextIsolation` | `false` | `true` |
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| `nodeIntegration` | `true` | `false` |
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| `webviewTag` | `nodeIntegration` if set else `true` | `false` |
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E.g. Re-enabling the webviewTag
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```js
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const w = new BrowserWindow({
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webPreferences: {
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webviewTag: true
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}
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})
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```
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### `nativeWindowOpen`
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Child windows opened with the `nativeWindowOpen` option will always have Node.js integration disabled.
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### Privileged Schemes Registration
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Renderer process APIs `webFrame.setRegisterURLSchemeAsPrivileged` and `webFrame.registerURLSchemeAsBypassingCSP` as well as browser process API `protocol.registerStandardSchemes` have been removed.
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A new API, `protocol.registerSchemesAsPrivileged` has been added and should be used for registering custom schemes with the required privileges. Custom schemes are required to be registered before app ready.
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### webFrame Isolated World APIs
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```js
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// Deprecated
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webFrame.setIsolatedWorldContentSecurityPolicy(worldId, csp)
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webFrame.setIsolatedWorldHumanReadableName(worldId, name)
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webFrame.setIsolatedWorldSecurityOrigin(worldId, securityOrigin)
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// Replace with
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webFrame.setIsolatedWorldInfo(
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worldId,
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{
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securityOrigin: 'some_origin',
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name: 'human_readable_name',
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csp: 'content_security_policy'
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})
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```
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## Planned Breaking API Changes (4.0)
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The following list includes the breaking API changes made in Electron 4.0.
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### `app.makeSingleInstance`
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```js
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// Deprecated
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app.makeSingleInstance((argv, cwd) => {
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/* ... */
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})
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// Replace with
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app.requestSingleInstanceLock()
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app.on('second-instance', (event, argv, cwd) => {
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/* ... */
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})
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```
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### `app.releaseSingleInstance`
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```js
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// Deprecated
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app.releaseSingleInstance()
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// Replace with
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app.releaseSingleInstanceLock()
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```
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### `app.getGPUInfo`
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```js
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app.getGPUInfo('complete')
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// Now behaves the same with `basic` on macOS
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app.getGPUInfo('basic')
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```
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### `win_delay_load_hook`
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When building native modules for windows, the `win_delay_load_hook` variable in
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the module's `binding.gyp` must be true (which is the default). If this hook is
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not present, then the native module will fail to load on Windows, with an error
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message like `Cannot find module`. See the [native module
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guide](/docs/tutorial/using-native-node-modules.md) for more.
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## Breaking API Changes (3.0)
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The following list includes the breaking API changes in Electron 3.0.
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### `app`
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```js
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// Deprecated
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app.getAppMemoryInfo()
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// Replace with
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app.getAppMetrics()
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// Deprecated
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const metrics = app.getAppMetrics()
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const { memory } = metrics[0] // Deprecated property
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```
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### `BrowserWindow`
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```js
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// Deprecated
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let optionsA = { webPreferences: { blinkFeatures: '' } }
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let windowA = new BrowserWindow(optionsA)
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// Replace with
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let optionsB = { webPreferences: { enableBlinkFeatures: '' } }
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let windowB = new BrowserWindow(optionsB)
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// Deprecated
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window.on('app-command', (e, cmd) => {
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if (cmd === 'media-play_pause') {
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// do something
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}
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})
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// Replace with
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window.on('app-command', (e, cmd) => {
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if (cmd === 'media-play-pause') {
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// do something
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}
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})
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```
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### `clipboard`
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```js
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// Deprecated
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clipboard.readRtf()
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// Replace with
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clipboard.readRTF()
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// Deprecated
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clipboard.writeRtf()
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// Replace with
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clipboard.writeRTF()
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// Deprecated
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clipboard.readHtml()
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// Replace with
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clipboard.readHTML()
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// Deprecated
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clipboard.writeHtml()
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// Replace with
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clipboard.writeHTML()
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```
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### `crashReporter`
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```js
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// Deprecated
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crashReporter.start({
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companyName: 'Crashly',
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submitURL: 'https://crash.server.com',
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autoSubmit: true
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})
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// Replace with
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crashReporter.start({
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companyName: 'Crashly',
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submitURL: 'https://crash.server.com',
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uploadToServer: true
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})
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```
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### `nativeImage`
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```js
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// Deprecated
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nativeImage.createFromBuffer(buffer, 1.0)
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// Replace with
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nativeImage.createFromBuffer(buffer, {
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scaleFactor: 1.0
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})
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```
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### `process`
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```js
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// Deprecated
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const info = process.getProcessMemoryInfo()
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```
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### `screen`
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```js
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// Deprecated
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screen.getMenuBarHeight()
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// Replace with
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screen.getPrimaryDisplay().workArea
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```
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### `session`
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```js
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// Deprecated
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ses.setCertificateVerifyProc((hostname, certificate, callback) => {
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callback(true)
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})
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// Replace with
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ses.setCertificateVerifyProc((request, callback) => {
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callback(0)
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})
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```
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### `Tray`
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```js
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// Deprecated
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tray.setHighlightMode(true)
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// Replace with
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tray.setHighlightMode('on')
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// Deprecated
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tray.setHighlightMode(false)
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// Replace with
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tray.setHighlightMode('off')
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```
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### `webContents`
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```js
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// Deprecated
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webContents.openDevTools({ detach: true })
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// Replace with
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webContents.openDevTools({ mode: 'detach' })
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// Removed
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webContents.setSize(options)
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// There is no replacement for this API
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```
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### `webFrame`
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```js
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// Deprecated
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webFrame.registerURLSchemeAsSecure('app')
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// Replace with
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protocol.registerStandardSchemes(['app'], { secure: true })
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// Deprecated
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webFrame.registerURLSchemeAsPrivileged('app', { secure: true })
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// Replace with
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protocol.registerStandardSchemes(['app'], { secure: true })
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```
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### `<webview>`
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```js
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// Removed
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webview.setAttribute('disableguestresize', '')
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// There is no replacement for this API
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// Removed
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webview.setAttribute('guestinstance', instanceId)
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// There is no replacement for this API
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// Keyboard listeners no longer work on webview tag
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webview.onkeydown = () => { /* handler */ }
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webview.onkeyup = () => { /* handler */ }
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```
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### Node Headers URL
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This is the URL specified as `disturl` in a `.npmrc` file or as the `--dist-url`
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command line flag when building native Node modules.
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Deprecated: https://atom.io/download/atom-shell
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Replace with: https://atom.io/download/electron
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## Breaking API Changes (2.0)
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The following list includes the breaking API changes made in Electron 2.0.
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### `BrowserWindow`
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```js
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// Deprecated
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let optionsA = { titleBarStyle: 'hidden-inset' }
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let windowA = new BrowserWindow(optionsA)
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// Replace with
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let optionsB = { titleBarStyle: 'hiddenInset' }
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let windowB = new BrowserWindow(optionsB)
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```
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### `menu`
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```js
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// Removed
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menu.popup(browserWindow, 100, 200, 2)
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// Replaced with
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menu.popup(browserWindow, { x: 100, y: 200, positioningItem: 2 })
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```
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### `nativeImage`
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```js
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// Removed
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nativeImage.toPng()
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// Replaced with
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nativeImage.toPNG()
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// Removed
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nativeImage.toJpeg()
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// Replaced with
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nativeImage.toJPEG()
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```
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### `process`
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* `process.versions.electron` and `process.version.chrome` will be made
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read-only properties for consistency with the other `process.versions`
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properties set by Node.
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### `webContents`
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```js
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// Removed
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webContents.setZoomLevelLimits(1, 2)
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// Replaced with
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webContents.setVisualZoomLevelLimits(1, 2)
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```
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### `webFrame`
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```js
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// Removed
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webFrame.setZoomLevelLimits(1, 2)
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// Replaced with
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webFrame.setVisualZoomLevelLimits(1, 2)
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```
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### `<webview>`
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```js
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// Removed
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webview.setZoomLevelLimits(1, 2)
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// Replaced with
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webview.setVisualZoomLevelLimits(1, 2)
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```
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### Duplicate ARM Assets
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Each Electron release includes two identical ARM builds with slightly different
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filenames, like `electron-v1.7.3-linux-arm.zip` and
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`electron-v1.7.3-linux-armv7l.zip`. The asset with the `v7l` prefix was added
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to clarify to users which ARM version it supports, and to disambiguate it from
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future armv6l and arm64 assets that may be produced.
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The file _without the prefix_ is still being published to avoid breaking any
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setups that may be consuming it. Starting at 2.0, the un-prefixed file will
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no longer be published.
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For details, see
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[6986](https://github.com/electron/electron/pull/6986)
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and
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[7189](https://github.com/electron/electron/pull/7189).
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