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2f9688c14e
Additionally, this patch makes `nsFrame.h` stop including `nsIPresShell.h` and makes each users include `mozilla/PresShell.h` instead. So, this improves rebuild performance of `nsIPresShell.h` (and `mozilla/PresShell.h` in the future). Note that due to `nsIFrame::PresShell()`, `mozilla::` prefix is necessary for `PresShell` in a lot of classes which are derived from `nsIFrame` even in `.cpp` files. Differential Revision: https://phabricator.services.mozilla.com/D27476 --HG-- extra : moz-landing-system : lando
53 lines
2.0 KiB
C++
53 lines
2.0 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* 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 nsSelectsAreaFrame_h___
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#define nsSelectsAreaFrame_h___
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#include "mozilla/Attributes.h"
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#include "nsBlockFrame.h"
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namespace mozilla {
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class PresShell;
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} // namespace mozilla
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class nsSelectsAreaFrame final : public nsBlockFrame {
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public:
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NS_DECL_FRAMEARENA_HELPERS(nsSelectsAreaFrame)
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friend nsContainerFrame* NS_NewSelectsAreaFrame(mozilla::PresShell* aShell,
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ComputedStyle* aStyle,
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nsFrameState aFlags);
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virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsDisplayListSet& aLists) override;
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void BuildDisplayListInternal(nsDisplayListBuilder* aBuilder,
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const nsDisplayListSet& aLists);
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virtual void Reflow(nsPresContext* aCX, ReflowOutput& aDesiredSize,
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const ReflowInput& aReflowInput,
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nsReflowStatus& aStatus) override;
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nscoord BSizeOfARow() const { return mBSizeOfARow; }
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protected:
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explicit nsSelectsAreaFrame(ComputedStyle* aStyle,
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nsPresContext* aPresContext)
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: nsBlockFrame(aStyle, aPresContext, kClassID),
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// initialize to wacky value so first call of
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// nsSelectsAreaFrame::Reflow will always invalidate
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mBSizeOfARow(nscoord_MIN) {}
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// We cache the block size of a single row so that changes to the
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// "size" attribute, padding, etc. can all be handled with only one
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// reflow. We'll have to reflow twice if someone changes our font
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// size or something like that, so that the block size of our options
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// will change.
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nscoord mBSizeOfARow;
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};
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#endif /* nsSelectsAreaFrame_h___ */
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