mirror of
https://github.com/mozilla-firefox/firefox
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Sylvestre Ledru
4f6b8b516d
replaced by .editorconfig # ignore-this-changeset Differential Revision: https://phabricator.services.mozilla.com/D287877
35 lines
1.1 KiB
C++
35 lines
1.1 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef widget_WindowOcclusionState_h
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#define widget_WindowOcclusionState_h
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#include <cstdint>
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namespace mozilla {
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namespace widget {
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// nsWindow's window occlusion state. On Windows, it is tracked by
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// WinWindowOcclusionTracker.
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enum class OcclusionState : uint8_t {
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// The window's occlusion state isn't tracked (NotifyOcclusionState()) or
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// hasn't been computed yet.
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UNKNOWN = 0,
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// The window IsWindowVisibleAndFullyOpaque() [1] and:
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// - Its bounds aren't completely covered by fully opaque windows [2]
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VISIBLE = 1,
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// The window IsWindowVisibleAndFullyOpaque() [1], but they all:
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// - Have bounds completely covered by fully opaque windows [2]
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OCCLUDED = 2,
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// The window is not IsWindowVisibleAndFullyOpaque() [1].
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HIDDEN = 3,
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kMaxValue = HIDDEN,
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};
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} // namespace widget
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} // namespace mozilla
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#endif // widget_WindowOcclusionState_h
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