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