gecko-dev/layout/generic/Visibility.h
Emilio Cobos Álvarez 11ea945833 Bug 1546697 - Use a consistent style for enum classes in layout. r=dholbert
Per the discussion in:

  https://groups.google.com/d/msg/mozilla.dev.platform/P79pwa9z5m8/iPYPAWPHCAAJ

They should be CamelCase, and that's what most of them already do. This converts
the rest, which are a few.

For the ones that already used `e` or `k` prefixes, I've mostly done:

 for file in $(rg Type::e layout | cut -d : -f 1 | sort | uniq); do sed -i 's#Type::e#Type::#g' $file; done

For the ones that used uppercase, I've removed the prefix if it was already in
the type name, and turn them into CamelCase.

Depends on D28680

Differential Revision: https://phabricator.services.mozilla.com/D28681

--HG--
extra : moz-landing-system : lando
2019-04-25 23:03:04 +00:00

46 lines
1.7 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/**
* Declares visibility-related types. @Visibility is an enumeration of the
* possible visibility states of a frame. @OnNonvisible is an enumeration that
* allows callers to request a specific action when a frame transitions from
* visible to nonvisible.
*/
#ifndef mozilla_layout_generic_Visibility_h
#define mozilla_layout_generic_Visibility_h
namespace mozilla {
// Visibility states for frames.
enum class Visibility : uint8_t {
// Indicates that we're not tracking visibility for this frame.
Untracked,
// Indicates that the frame is probably nonvisible. Visible frames *may* be
// ApproximatelyNonVisible because approximate visibility is not updated
// synchronously. Some truly nonvisible frames may be marked
// ApproximatelyVisible instead if our heuristics lead us to think they may
// be visible soon.
ApproximatelyNonVisible,
// Indicates that the frame is either visible now or is likely to be visible
// soon according to our heuristics. As with ApproximatelyNonVisible , it's
// important to note that approximately visibility is not updated
// synchronously, so this information may be out of date.
ApproximatelyVisible,
};
// Requested actions when frames transition to the nonvisible state.
enum class OnNonvisible : uint8_t {
DiscardImages // Discard images associated with the frame.
};
} // namespace mozilla
#endif // mozilla_layout_generic_Visibility_h