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This patch starts down the process of cleaning up the dart:ui API. In this approach, we use Dart code to specify the interface instead of IDL. The code in this patch is far from complete. It's just a sketch to see how this sort of approach might work.
40 lines
874 B
Dart
40 lines
874 B
Dart
// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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part of dart_ui;
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typedef void _VoidCallback();
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typedef Scene _FrameCallback(Duration duration);
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typedef void _EventCallback(Event event);
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class Padding {
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const Padding({ this.top, this.right, this.bottom, this.left });
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final double top;
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final double right;
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final double bottom;
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final double left;
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}
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class Window {
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Window._();
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double get devicePixelRatio => _devicePixelRatio;
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double _devicePixelRatio;
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Size get size => _size;
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Size _size;
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Padding get padding => _padding;
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Padding _padding;
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_FrameCallback onBeginFrame;
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_EventCallback onEvent;
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_VoidCallback onMetricsChanged;
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void scheduleFrame() native "Window_scheduleFrame";
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}
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final Window window = new Window._();
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