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Widget Refactor
The Chromium Projects
Widget Refactor
Background
A view hierarchy is hosted by a views::Widget subclass. This subclass (e.g. WidgetWin or WidgetGtk) receives native events from the operating system, cracks them into views-specific types and propagates them into the view hierarchy.
The current arrangement poses some challenges that make porting to a new native toolkit problematic:
- The native Widget implementations are very thick. There is a lot of duplicated code that makes fixing bugs cumbersome.
- Swapping native Widget implementations is problematic because they are stateful. The state is meaningful and may not have good analogs in other implementations.
Details
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