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69 lines
2.5 KiB
C++
69 lines
2.5 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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/* rendering object for HTML <wbr> elements */
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#include "mozilla/PresShell.h"
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#include "nsHTMLParts.h"
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#include "nsIFrame.h"
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using namespace mozilla;
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namespace mozilla {
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class WBRFrame final : public nsIFrame {
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public:
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NS_DECL_FRAMEARENA_HELPERS(WBRFrame)
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friend nsIFrame* ::NS_NewWBRFrame(mozilla::PresShell* aPresShell,
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ComputedStyle* aStyle);
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virtual FrameSearchResult PeekOffsetNoAmount(bool aForward,
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int32_t* aOffset) override;
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virtual FrameSearchResult PeekOffsetCharacter(
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bool aForward, int32_t* aOffset,
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PeekOffsetCharacterOptions aOptions =
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PeekOffsetCharacterOptions()) override;
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virtual FrameSearchResult PeekOffsetWord(
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bool aForward, bool aWordSelectEatSpace, bool aIsKeyboardSelect,
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int32_t* aOffset, PeekWordState* aState, bool aTrimSpaces) override;
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protected:
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explicit WBRFrame(ComputedStyle* aStyle, nsPresContext* aPresContext)
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: nsIFrame(aStyle, aPresContext, kClassID) {}
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};
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} // namespace mozilla
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nsIFrame* NS_NewWBRFrame(mozilla::PresShell* aPresShell,
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ComputedStyle* aStyle) {
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return new (aPresShell) WBRFrame(aStyle, aPresShell->GetPresContext());
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}
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NS_IMPL_FRAMEARENA_HELPERS(WBRFrame)
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nsIFrame::FrameSearchResult WBRFrame::PeekOffsetNoAmount(bool aForward,
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int32_t* aOffset) {
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NS_ASSERTION(aOffset && *aOffset <= 1, "aOffset out of range");
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// WBR frames can not contain text or non-rendered whitespace
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return CONTINUE;
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}
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nsIFrame::FrameSearchResult WBRFrame::PeekOffsetCharacter(
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bool aForward, int32_t* aOffset, PeekOffsetCharacterOptions aOptions) {
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NS_ASSERTION(aOffset && *aOffset <= 1, "aOffset out of range");
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// WBR frames can not contain characters
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return CONTINUE;
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}
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nsIFrame::FrameSearchResult WBRFrame::PeekOffsetWord(
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bool aForward, bool aWordSelectEatSpace, bool aIsKeyboardSelect,
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int32_t* aOffset, PeekWordState* aState, bool aTrimSpaces) {
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NS_ASSERTION(aOffset && *aOffset <= 1, "aOffset out of range");
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// WBR frames can never contain text so we'll never find a word inside them
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return CONTINUE;
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}
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