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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /layout/forms/nsSelectsAreaFrame.h | |
parent | Initial commit. (diff) | |
download | thunderbird-upstream.tar.xz thunderbird-upstream.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'layout/forms/nsSelectsAreaFrame.h')
-rw-r--r-- | layout/forms/nsSelectsAreaFrame.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/layout/forms/nsSelectsAreaFrame.h b/layout/forms/nsSelectsAreaFrame.h new file mode 100644 index 0000000000..e0e487bad7 --- /dev/null +++ b/layout/forms/nsSelectsAreaFrame.h @@ -0,0 +1,52 @@ +/* -*- 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/. */ +#ifndef nsSelectsAreaFrame_h___ +#define nsSelectsAreaFrame_h___ + +#include "mozilla/Attributes.h" +#include "nsBlockFrame.h" + +namespace mozilla { +class PresShell; +} // namespace mozilla + +class nsSelectsAreaFrame final : public nsBlockFrame { + public: + NS_DECL_FRAMEARENA_HELPERS(nsSelectsAreaFrame) + + friend nsContainerFrame* NS_NewSelectsAreaFrame(mozilla::PresShell* aShell, + ComputedStyle* aStyle, + nsFrameState aFlags); + + virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder, + const nsDisplayListSet& aLists) override; + + void BuildDisplayListInternal(nsDisplayListBuilder* aBuilder, + const nsDisplayListSet& aLists); + + virtual void Reflow(nsPresContext* aCX, ReflowOutput& aDesiredSize, + const ReflowInput& aReflowInput, + nsReflowStatus& aStatus) override; + + nscoord BSizeOfARow() const { return mBSizeOfARow; } + + protected: + explicit nsSelectsAreaFrame(ComputedStyle* aStyle, + nsPresContext* aPresContext) + : nsBlockFrame(aStyle, aPresContext, kClassID), + // initialize to wacky value so first call of + // nsSelectsAreaFrame::Reflow will always invalidate + mBSizeOfARow(nscoord_MIN) {} + + // We cache the block size of a single row so that changes to the + // "size" attribute, padding, etc. can all be handled with only one + // reflow. We'll have to reflow twice if someone changes our font + // size or something like that, so that the block size of our options + // will change. + nscoord mBSizeOfARow; +}; + +#endif /* nsSelectsAreaFrame_h___ */ |