Add m-esr52 at 52.6.0

1 files changed, 206 insertions, 0 deletions

diff --git a/layout/xul/nsSliderFrame.h b/layout/xul/nsSliderFrame.h
new file mode 100644
index 000000000..832065a21
--- /dev/null
+++ b/layout/xul/nsSliderFrame.h
@@ -0,0 +1,206 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 nsSliderFrame_h__
+#define nsSliderFrame_h__
+
+#include "mozilla/Attributes.h"
+#include "nsRepeatService.h"
+#include "nsBoxFrame.h"
+#include "nsIAtom.h"
+#include "nsCOMPtr.h"
+#include "nsITimer.h"
+#include "nsIDOMEventListener.h"
+
+class nsITimer;
+class nsSliderFrame;
+
+nsIFrame* NS_NewSliderFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
+
+class nsSliderMediator final : public nsIDOMEventListener
+{
+public:
+
+  NS_DECL_ISUPPORTS
+
+  nsSliderFrame* mSlider;
+
+  explicit nsSliderMediator(nsSliderFrame* aSlider) {  mSlider = aSlider; }
+
+  virtual void SetSlider(nsSliderFrame* aSlider) { mSlider = aSlider; }
+
+  NS_IMETHOD HandleEvent(nsIDOMEvent* aEvent) override;
+
+protected:
+  virtual ~nsSliderMediator() {}
+};
+
+class nsSliderFrame : public nsBoxFrame
+{
+public:
+  NS_DECL_FRAMEARENA_HELPERS
+  NS_DECL_QUERYFRAME_TARGET(nsSliderFrame)
+  NS_DECL_QUERYFRAME
+
+  friend class nsSliderMediator;
+
+  explicit nsSliderFrame(nsStyleContext* aContext);
+  virtual ~nsSliderFrame();
+
+#ifdef DEBUG_FRAME_DUMP
+  virtual nsresult GetFrameName(nsAString& aResult) const override {
+    return MakeFrameName(NS_LITERAL_STRING("SliderFrame"), aResult);
+  }
+#endif
+
+  virtual nsSize GetXULPrefSize(nsBoxLayoutState& aBoxLayoutState) override;
+  virtual nsSize GetXULMinSize(nsBoxLayoutState& aBoxLayoutState) override;
+  virtual nsSize GetXULMaxSize(nsBoxLayoutState& aBoxLayoutState) override;
+  NS_IMETHOD DoXULLayout(nsBoxLayoutState& aBoxLayoutState) override;
+
+  // nsIFrame overrides
+  virtual void DestroyFrom(nsIFrame* aDestructRoot) override;
+
+  virtual void BuildDisplayListForChildren(nsDisplayListBuilder*   aBuilder,
+                                           const nsRect&           aDirtyRect,
+                                           const nsDisplayListSet& aLists) override;
+
+  virtual void BuildDisplayList(nsDisplayListBuilder*   aBuilder,
+                                const nsRect&           aDirtyRect,
+                                const nsDisplayListSet& aLists) override;
+ 
+  virtual nsresult AttributeChanged(int32_t aNameSpaceID,
+                                    nsIAtom* aAttribute,
+                                    int32_t aModType) override;
+
+  virtual void Init(nsIContent*       aContent,
+                    nsContainerFrame* aParent,
+                    nsIFrame*         asPrevInFlow) override;
+
+
+  virtual nsresult HandleEvent(nsPresContext* aPresContext,
+                               mozilla::WidgetGUIEvent* aEvent,
+                               nsEventStatus* aEventStatus) override;
+
+  virtual nsIAtom* GetType() const override;
+
+  // nsContainerFrame overrides
+  virtual void SetInitialChildList(ChildListID     aListID,
+                                   nsFrameList&    aChildList) override;
+  virtual void AppendFrames(ChildListID     aListID,
+                            nsFrameList&    aFrameList) override;
+  virtual void InsertFrames(ChildListID     aListID,
+                            nsIFrame*       aPrevFrame,
+                            nsFrameList&    aFrameList) override;
+  virtual void RemoveFrame(ChildListID     aListID,
+                           nsIFrame*       aOldFrame) override;
+
+  nsresult StartDrag(nsIDOMEvent* aEvent);
+  nsresult StopDrag();
+
+  bool StartAPZDrag();
+
+  static int32_t GetCurrentPosition(nsIContent* content);
+  static int32_t GetMinPosition(nsIContent* content);
+  static int32_t GetMaxPosition(nsIContent* content);
+  static int32_t GetIncrement(nsIContent* content);
+  static int32_t GetPageIncrement(nsIContent* content);
+  static int32_t GetIntegerAttribute(nsIContent* content, nsIAtom* atom, int32_t defaultValue);
+  void EnsureOrient();
+
+  NS_IMETHOD HandlePress(nsPresContext* aPresContext,
+                         mozilla::WidgetGUIEvent* aEvent,
+                         nsEventStatus* aEventStatus) override;
+
+  NS_IMETHOD HandleMultiplePress(nsPresContext* aPresContext,
+                                 mozilla::WidgetGUIEvent* aEvent,
+                                 nsEventStatus* aEventStatus,
+                                 bool aControlHeld) override
+  {
+    return NS_OK;
+  }
+
+  NS_IMETHOD HandleDrag(nsPresContext* aPresContext,
+                        mozilla::WidgetGUIEvent* aEvent,
+                        nsEventStatus* aEventStatus) override
+  {
+    return NS_OK;
+  }
+
+  NS_IMETHOD HandleRelease(nsPresContext* aPresContext,
+                           mozilla::WidgetGUIEvent* aEvent,
+                           nsEventStatus* aEventStatus) override;
+
+  // Return the ratio the scrollbar thumb should move in proportion to the
+  // scrolled frame.
+  float GetThumbRatio() const;
+
+private:
+
+  bool GetScrollToClick();
+  nsIFrame* GetScrollbar();
+  bool ShouldScrollForEvent(mozilla::WidgetGUIEvent* aEvent);
+  bool ShouldScrollToClickForEvent(mozilla::WidgetGUIEvent* aEvent);
+  bool IsEventOverThumb(mozilla::WidgetGUIEvent* aEvent);
+
+  void PageUpDown(nscoord change);
+  void SetCurrentThumbPosition(nsIContent* aScrollbar, nscoord aNewPos, bool aIsSmooth,
+                               bool aMaySnap);
+  void SetCurrentPosition(nsIContent* aScrollbar, int32_t aNewPos, bool aIsSmooth);
+  void SetCurrentPositionInternal(nsIContent* aScrollbar, int32_t pos,
+                                  bool aIsSmooth);
+  void CurrentPositionChanged();
+
+  void DragThumb(bool aGrabMouseEvents);
+  void AddListener();
+  void RemoveListener();
+  bool isDraggingThumb();
+
+  void StartRepeat() {
+    nsRepeatService::GetInstance()->Start(Notify, this);
+  }
+  void StopRepeat() {
+    nsRepeatService::GetInstance()->Stop(Notify, this);
+  }
+  void Notify();
+  static void Notify(void* aData) {
+    (static_cast<nsSliderFrame*>(aData))->Notify();
+  }
+  void PageScroll(nscoord aChange);
+ 
+  nsPoint mDestinationPoint;
+  RefPtr<nsSliderMediator> mMediator;
+
+  float mRatio;
+
+  nscoord mDragStart;
+  nscoord mThumbStart;
+
+  int32_t mCurPos;
+
+  nscoord mChange;
+
+  bool mDragFinished;
+
+  // true if an attribute change has been caused by the user manipulating the
+  // slider. This allows notifications to tell how a slider's current position
+  // was changed.
+  bool mUserChanged;
+
+  // true if we've handed off the scrolling to APZ. This means that we should
+  // ignore scrolling events as the position will be updated by APZ. If we were
+  // to process these events then the scroll position update would conflict
+  // causing the scroll position to jump.
+  bool mScrollingWithAPZ;
+
+  // true if displayport suppression is active, for more performant
+  // scrollbar-dragging behaviour.
+  bool mSuppressionActive;
+
+  static bool gMiddlePref;
+  static int32_t gSnapMultiplier;
+}; // class nsSliderFrame
+
+#endif