зеркало из https://github.com/mozilla/gecko-dev.git
69 строки
2.2 KiB
C++
69 строки
2.2 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/. */
|
|
#ifndef nsPageContentFrame_h___
|
|
#define nsPageContentFrame_h___
|
|
|
|
#include "mozilla/Attributes.h"
|
|
#include "mozilla/ViewportFrame.h"
|
|
|
|
class nsPageFrame;
|
|
class nsSharedPageData;
|
|
|
|
namespace mozilla {
|
|
class PresShell;
|
|
} // namespace mozilla
|
|
|
|
// Page content frame class. Represents a page's content, in paginated mode.
|
|
class nsPageContentFrame final : public mozilla::ViewportFrame {
|
|
public:
|
|
NS_DECL_FRAMEARENA_HELPERS(nsPageContentFrame)
|
|
|
|
friend nsPageContentFrame* NS_NewPageContentFrame(
|
|
mozilla::PresShell* aPresShell, ComputedStyle* aStyle);
|
|
friend class nsPageFrame;
|
|
|
|
// nsIFrame
|
|
void Reflow(nsPresContext* aPresContext, ReflowOutput& aReflowOutput,
|
|
const ReflowInput& aReflowInput,
|
|
nsReflowStatus& aStatus) override;
|
|
|
|
bool IsFrameOfType(uint32_t aFlags) const override {
|
|
return ViewportFrame::IsFrameOfType(
|
|
aFlags & ~(nsIFrame::eCanContainOverflowContainers));
|
|
}
|
|
|
|
void SetSharedPageData(nsSharedPageData* aPD) { mPD = aPD; }
|
|
|
|
ComputeTransformFunction GetTransformGetter() const override;
|
|
void BuildDisplayList(nsDisplayListBuilder*,
|
|
const nsDisplayListSet&) override;
|
|
|
|
/**
|
|
* Return our canvas frame.
|
|
*/
|
|
void AppendDirectlyOwnedAnonBoxes(nsTArray<OwnedAnonBox>& aResult) override;
|
|
|
|
#ifdef DEBUG_FRAME_DUMP
|
|
// Debugging
|
|
nsresult GetFrameName(nsAString& aResult) const override;
|
|
#endif
|
|
|
|
protected:
|
|
explicit nsPageContentFrame(ComputedStyle* aStyle,
|
|
nsPresContext* aPresContext)
|
|
: ViewportFrame(aStyle, aPresContext, kClassID) {}
|
|
|
|
// Note: this will be set before reflow, and it's strongly owned by our
|
|
// nsPageSequenceFrame, which outlives us.
|
|
nsSharedPageData* mPD = nullptr;
|
|
|
|
// The combined InkOverflow from the previous and current page that does not
|
|
// yet have space allocated for it.
|
|
nscoord mRemainingOverflow = 0;
|
|
};
|
|
|
|
#endif /* nsPageContentFrame_h___ */
|