layout/xul/nsLeafBoxFrame.h
author Chris Manchester <cmanchester@mozilla.com>
Wed, 16 Jan 2019 22:46:38 +0000
changeset 514323 471d9fab61b34671f974dfa349e7972c200faa2b
parent 508163 6f3709b3878117466168c40affa7bca0b60cf75b
child 518473 525e804dc7e63855e026be9557af15340d71455a
permissions -rw-r--r--
Bug 1507631 - Remove mentions of MOZ_SIGN_CMD from the build system. r=nalexander Differential Revision: https://phabricator.services.mozilla.com/D16754

/* -*- 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 nsLeafBoxFrame_h___
#define nsLeafBoxFrame_h___

#include "mozilla/Attributes.h"
#include "nsLeafFrame.h"
#include "nsBox.h"

class nsLeafBoxFrame : public nsLeafFrame {
 public:
  NS_DECL_FRAMEARENA_HELPERS(nsLeafBoxFrame)

  friend nsIFrame* NS_NewLeafBoxFrame(nsIPresShell* aPresShell,
                                      ComputedStyle* aStyle);

  virtual nsSize GetXULPrefSize(nsBoxLayoutState& aState) override;
  virtual nsSize GetXULMinSize(nsBoxLayoutState& aState) override;
  virtual nsSize GetXULMaxSize(nsBoxLayoutState& aState) override;
  virtual nscoord GetXULFlex() override;
  virtual nscoord GetXULBoxAscent(nsBoxLayoutState& aState) override;

  virtual bool IsFrameOfType(uint32_t aFlags) const override {
    // This is bogus, but it's what we've always done.
    // Note that nsLeafFrame is also eReplacedContainsBlock.
    return nsLeafFrame::IsFrameOfType(
        aFlags & ~(nsIFrame::eReplaced | nsIFrame::eReplacedContainsBlock |
                   nsIFrame::eXULBox));
  }

#ifdef DEBUG_FRAME_DUMP
  virtual nsresult GetFrameName(nsAString& aResult) const override;
#endif

  // nsIHTMLReflow overrides

  virtual void MarkIntrinsicISizesDirty() override;
  virtual nscoord GetMinISize(gfxContext* aRenderingContext) override;
  virtual nscoord GetPrefISize(gfxContext* aRenderingContext) override;

  // Our auto size is that provided by nsFrame, not nsLeafFrame
  virtual mozilla::LogicalSize ComputeAutoSize(
      gfxContext* aRenderingContext, mozilla::WritingMode aWM,
      const mozilla::LogicalSize& aCBSize, nscoord aAvailableISize,
      const mozilla::LogicalSize& aMargin, const mozilla::LogicalSize& aBorder,
      const mozilla::LogicalSize& aPadding, ComputeSizeFlags aFlags) override;

  virtual void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
                      const ReflowInput& aReflowInput,
                      nsReflowStatus& aStatus) override;

  virtual nsresult CharacterDataChanged(
      const CharacterDataChangeInfo&) override;

  virtual void Init(nsIContent* aContent, nsContainerFrame* aParent,
                    nsIFrame* asPrevInFlow) override;

  virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
                                const nsDisplayListSet& aLists) override;

  virtual nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
                                    int32_t aModType) override;

  virtual bool ComputesOwnOverflowArea() override { return false; }

 protected:
  NS_IMETHOD DoXULLayout(nsBoxLayoutState& aState) override;

  virtual nscoord GetIntrinsicISize() override;

  explicit nsLeafBoxFrame(ComputedStyle* aStyle, ClassID aID = kClassID)
      : nsLeafFrame(aStyle, aID) {}

 private:
  void UpdateMouseThrough();

};  // class nsLeafBoxFrame

#endif /* nsLeafBoxFrame_h___ */