layout/xul/nsSplitterFrame.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 //
   8 // nsSplitterFrame
   9 //
  10
  11 #ifndef nsSplitterFrame_h__
  12 #define nsSplitterFrame_h__
  13
  14 #include "mozilla/Attributes.h"
  15 #include "mozilla/RefPtr.h"
  16 #include "SimpleXULLeafFrame.h"
  17
  18 class nsSplitterFrameInner;
  19
  20 namespace mozilla {
  21 class PresShell;
  22 }  // namespace mozilla
  23
  24 nsIFrame* NS_NewSplitterFrame(mozilla::PresShell* aPresShell,
  25                               mozilla::ComputedStyle* aStyle);
  26
  27 class nsSplitterFrame final : public mozilla::SimpleXULLeafFrame {
  28  public:
  29   NS_DECL_FRAMEARENA_HELPERS(nsSplitterFrame)
  30
  31   explicit nsSplitterFrame(ComputedStyle* aStyle, nsPresContext* aPresContext);
  32   void DestroyFrom(nsIFrame* aDestructRoot,
  33                    PostDestroyData& aPostDestroyData) override;
  34
  35 #ifdef DEBUG_FRAME_DUMP
  36   nsresult GetFrameName(nsAString& aResult) const override {
  37     return MakeFrameName(u"SplitterFrame"_ns, aResult);
  38   }
  39 #endif
  40
  41   bool IsHorizontal() const { return mIsHorizontal; }
  42
  43   // nsIFrame overrides
  44   nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
  45                             int32_t aModType) override;
  46
  47   void Init(nsIContent* aContent, nsContainerFrame* aParent,
  48             nsIFrame* aPrevInFlow) override;
  49
  50   NS_IMETHOD HandlePress(nsPresContext* aPresContext,
  51                          mozilla::WidgetGUIEvent* aEvent,
  52                          nsEventStatus* aEventStatus) override;
  53
  54   NS_IMETHOD HandleMultiplePress(nsPresContext* aPresContext,
  55                                  mozilla::WidgetGUIEvent* aEvent,
  56                                  nsEventStatus* aEventStatus,
  57                                  bool aControlHeld) override;
  58
  59   void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
  60               const ReflowInput& aReflowInput,
  61               nsReflowStatus& aStatus) override;
  62
  63   MOZ_CAN_RUN_SCRIPT
  64   NS_IMETHOD HandleDrag(nsPresContext* aPresContext,
  65                         mozilla::WidgetGUIEvent* aEvent,
  66                         nsEventStatus* aEventStatus) override;
  67
  68   NS_IMETHOD HandleRelease(nsPresContext* aPresContext,
  69                            mozilla::WidgetGUIEvent* aEvent,
  70                            nsEventStatus* aEventStatus) override;
  71
  72   nsresult HandleEvent(nsPresContext* aPresContext,
  73                        mozilla::WidgetGUIEvent* aEvent,
  74                        nsEventStatus* aEventStatus) override;
  75
  76   void BuildDisplayList(nsDisplayListBuilder* aBuilder,
  77                         const nsDisplayListSet& aLists) override;
  78
  79  private:
  80   friend class nsSplitterFrameInner;
  81   RefPtr<nsSplitterFrameInner> mInner;
  82   bool mIsHorizontal = false;
  83 };  // class nsSplitterFrame
  84
  85 #endif