313 lines
6 KiB
Markdown
313 lines
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 (4.0)
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The following list includes the breaking API changes planned for 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(function (argv, cwd) {
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})
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// Replace with
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app.requestSingleInstanceLock()
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app.on('second-instance', function (argv, cwd) {
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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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# 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(function (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(function (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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