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 Destroy(DestroyContext&) override;
  33
  34 #ifdef DEBUG_FRAME_DUMP
  35   nsresult GetFrameName(nsAString& aResult) const override {
  36     return MakeFrameName(u"SplitterFrame"_ns, aResult);
  37   }
  38 #endif
  39
  40   bool IsHorizontal() const { return mIsHorizontal; }
  41
  42   // nsIFrame overrides
  43   nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
  44                             int32_t aModType) override;
  45
  46   void Init(nsIContent* aContent, nsContainerFrame* aParent,
  47             nsIFrame* aPrevInFlow) override;
  48
  49   NS_IMETHOD HandlePress(nsPresContext* aPresContext,
  50                          mozilla::WidgetGUIEvent* aEvent,
  51                          nsEventStatus* aEventStatus) override;
  52
  53   NS_IMETHOD HandleMultiplePress(nsPresContext* aPresContext,
  54                                  mozilla::WidgetGUIEvent* aEvent,
  55                                  nsEventStatus* aEventStatus,
  56                                  bool aControlHeld) override;
  57
  58   void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
  59               const ReflowInput& aReflowInput,
  60               nsReflowStatus& aStatus) override;
  61
  62   MOZ_CAN_RUN_SCRIPT
  63   NS_IMETHOD HandleDrag(nsPresContext* aPresContext,
  64                         mozilla::WidgetGUIEvent* aEvent,
  65                         nsEventStatus* aEventStatus) override;
  66
  67   NS_IMETHOD HandleRelease(nsPresContext* aPresContext,
  68                            mozilla::WidgetGUIEvent* aEvent,
  69                            nsEventStatus* aEventStatus) override;
  70
  71   nsresult HandleEvent(nsPresContext* aPresContext,
  72                        mozilla::WidgetGUIEvent* aEvent,
  73                        nsEventStatus* aEventStatus) override;
  74
  75   void BuildDisplayList(nsDisplayListBuilder* aBuilder,
  76                         const nsDisplayListSet& aLists) override;
  77
  78  private:
  79   friend class nsSplitterFrameInner;
  80   RefPtr<nsSplitterFrameInner> mInner;
  81   bool mIsHorizontal = false;
  82 };  // class nsSplitterFrame
  83
  84 #endif