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feat: Add will-resize event to TopLevelWindow (#13649)

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The new `will-resize` event can be used to prevent the resize from
happening before the native window is actually resized. This is in
contrast to the existing the `resize` event, which is sent *after* the
native window has already been resized. For apps with e.g. custom window
snapping logic, the `resize` event is not sufficient because it will
result in flickering between the dragged size and the snapped size.

`will-resize` is only emitted on macOS and Windows.
This commit is contained in:
Birunthan Mohanathas
2018-07-27 11:53:01 +02:00
committed by Cheng Zhao
parent 9af9634f7d
commit c8dc2d3730
8 changed files with 56 additions and 2 deletions
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docs/api/browser-window.md
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@@ -490,9 +490,20 @@ Emitted when the window is minimized.
Emitted when the window is restored from a minimized state.
#### Event: 'will-resize' _macOS_ _Windows_
Returns:
* `event` Event
* `newBounds` [`Rectangle`](structures/rectangle.md) - Size the window is being resized to.
Emitted before the window is resized. Calling `event.preventDefault()` will prevent the window from being resized.
Note that this is only emitted when the window is being resized manually. Resizing the window with `setBounds`/`setSize` will not emit this event.
#### Event: 'resize'
Emitted when the window is being resized.
Emitted after the window has been resized.
#### Event: 'move'