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Electron API History Migration Guide

This document demonstrates how to add API History blocks to existing APIs.

API history information​

Here are some resources you can use to find information on the history of an API:

Breaking Changes​

Additions​

Beispiel​

[!NOTE] The associated API is already removed, we will ignore that for the purpose of this example.

If we search through breaking-changes.md we can find a function that was deprecated in Electron 25.0.

<!-- docs/breaking-changes.md -->
### Deprecated: `BrowserWindow.getTrafficLightPosition()`

`BrowserWindow.getTrafficLightPosition()` has been deprecated, the
`BrowserWindow.getWindowButtonPosition()` API should be used instead
which returns `null` instead of `{ x: 0, y: 0 }` when there is no custom
position.

<!-- docs/api/browser-window.md  -->
#### `win.getTrafficLightPosition()` _macOS_ _Deprecated_

Returns `Point` - The custom position for the traffic light buttons in
frameless window, `{ x: 0, y: 0 }` will be returned when there is no custom
position.

We can then use git blame to find the Pull Request associated with that entry:

$ grep -n "BrowserWindow.getTrafficLightPosition" docs/breaking-changes.md 
523:### Deprecated: `BrowserWindow.getTrafficLightPosition()`
525:`BrowserWindow.getTrafficLightPosition()` has been deprecated, the

$ git blame -L523,524 -- docs/breaking-changes.md
1e206deec3e (Keeley Hammond 2023-04-06 21:23:29 -0700 523) ### Deprecated: `BrowserWindow.getTrafficLightPosition()`
1e206deec3e (Keeley Hammond 2023-04-06 21:23:29 -0700 524)

$ git log -1 1e206deec3e
commit 1e206deec3ef142460c780307752a84782f9baed (tag: v26.0.0-nightly.20230407)
Author: Keeley Hammond <vertedinde@electronjs.org>
Date:   Thu Apr 6 21:23:29 2023 -0700

    docs: update E24/E25 breaking changes (#37878) <-- This is the associated Pull Request

Verify that the Pull Request is correct and make a corresponding entry in the API History:

[!NOTE] Refer to the API History section of styleguide.md for information on how to create API History blocks.

#### `win.getTrafficLightPosition()` _macOS_ _Deprecated_

<!--
```YAML history
deprecated:
  - pr-url: https://github.com/electron/electron/pull/37878
    breaking-changes-header: deprecated-browserwindowgettrafficlightposition
```
-->

Returns `Point` - The custom position for the traffic light buttons in
frameless window, `{ x: 0, y: 0 }` will be returned when there is no custom
position.

You can keep looking through breaking-changes.md to find other breaking changes and add those in.

You can also use git log -L :<funcname>:<file>:

$ git log --reverse -L :GetTrafficLightPosition:shell/browser/native_window_mac.mm
commit e01b1831d96d5d68f54af879b00c617358df5372
Author: Cheng Zhao <zcbenz@gmail.com>
Date:   Wed Dec 16 14:30:39 2020 +0900

    feat: make trafficLightPosition work for customButtonOnHover (#26789)

Verify that the Pull Request is correct and make a corresponding entry in the API History:

#### `win.getTrafficLightPosition()` _macOS_ _Deprecated_

<!--
```YAML history
added:
  - pr-url: https://github.com/electron/electron/pull/22533
changes:
  - pr-url: https://github.com/electron/electron/pull/26789
    description: "Made `trafficLightPosition` option work for `customButtonOnHover` window."
    breaking-changes-header: behavior-changed-draggable-regions-on-macos
```
-->

Returns `Point` - The custom position for the traffic light buttons in
frameless window, `{ x: 0, y: 0 }` will be returned when there is no custom
position.

We will then look for when the API was originally added:

$ git log --reverse -L :GetTrafficLightPosition:shell/browser/native_window_mac.mm
commit 3e2cec83d927b991855e21cc311ca9046e332601
Author: Samuel Attard <sattard@slack-corp.com>
Date:   Thu Mar 5 14:22:12 2020 -0800

    feat: programmatically modify traffic light positioning (#22533)

Alternatively, you can use git blame:

$ git checkout 1e206deec3e^
HEAD is now at e8c87859c4 fix: showAboutPanel also on linux (#37828)

$ grep -n "getTrafficLightPosition" docs/api/browser-window.md
1867:#### `win.getTrafficLightPosition()` _macOS_ _Deprecated_

$ git blame -L1867,1868 -- docs/api/browser-window.md
0de1012280e (Cheng Zhao    2023-02-17 19:06:32 +0900 1867) #### `win.getTrafficLightPosition()` _macOS_ _Deprecated_
3e2cec83d92 (Samuel Attard 2020-03-05 14:22:12 -0800 1868) 

$ git checkout 0de1012280e^
HEAD is now at 0a5e634736 test: rename & split internal module tests (#37318)

$ grep -n "getTrafficLightPosition" docs/api/browser-window.md 
1851:#### `win.getTrafficLightPosition()` _macOS_

$ git blame -L1851,1852 -- docs/api/browser-window.md
3e2cec83d92 (Samuel Attard 2020-03-05 14:22:12 -0800 1851) #### `win.getTrafficLightPosition()` _macOS_
3e2cec83d92 (Samuel Attard 2020-03-05 14:22:12 -0800 1852)

$ git checkout 3e2cec83d92^
HEAD is now at 1811751c6c docs: clean up dark mode related docs (#22489)

$ grep -n "getTrafficLightPosition" docs/api/browser-window.md
(Nothing)

$ git checkout 3e2cec83d92
HEAD is now at 3e2cec83d9 feat: programmatically modify traffic light positioning (#22533)

Verify that the Pull Request is correct and make a corresponding entry in the API History:

#### `win.getTrafficLightPosition()` _macOS_ _Deprecated_

<!--
```YAML history
added:
  - pr-url: https://github.com/electron/electron/pull/22533
changes:
  - pr-url: https://github.com/electron/electron/pull/26789
    description: "Made `trafficLightPosition` option work for `customButtonOnHover` window."
    breaking-changes-header: behavior-changed-draggable-regions-on-macos
deprecated:
  - pr-url: https://github.com/electron/electron/pull/37878
    breaking-changes-header: deprecated-browserwindowgettrafficlightposition
```
-->

Returns `Point` - The custom position for the traffic light buttons in
frameless window, `{ x: 0, y: 0 }` will be returned when there is no custom
position.