Add m-esr52 at 52.6.0

1 files changed, 150 insertions, 0 deletions

diff --git a/layout/generic/nsBulletFrame.h b/layout/generic/nsBulletFrame.h
new file mode 100644
index 000000000..e35ed0923
--- /dev/null
+++ b/layout/generic/nsBulletFrame.h
@@ -0,0 +1,150 @@
+/* -*- 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/. */
+
+/* rendering object for list-item bullets */
+
+#ifndef nsBulletFrame_h___
+#define nsBulletFrame_h___
+
+#include "mozilla/Attributes.h"
+#include "nsFrame.h"
+
+#include "imgIContainer.h"
+#include "imgINotificationObserver.h"
+#include "imgIOnloadBlocker.h"
+
+class imgIContainer;
+class imgRequestProxy;
+
+class nsBulletFrame;
+
+class nsBulletListener final : public imgINotificationObserver,
+                               public imgIOnloadBlocker
+{
+public:
+  nsBulletListener();
+
+  NS_DECL_ISUPPORTS
+  NS_DECL_IMGINOTIFICATIONOBSERVER
+  NS_DECL_IMGIONLOADBLOCKER
+
+  void SetFrame(nsBulletFrame *frame) { mFrame = frame; }
+
+private:
+  virtual ~nsBulletListener();
+
+  nsBulletFrame *mFrame;
+};
+
+/**
+ * A simple class that manages the layout and rendering of html bullets.
+ * This class also supports the CSS list-style properties.
+ */
+class nsBulletFrame final : public nsFrame {
+  typedef mozilla::image::DrawResult DrawResult;
+
+public:
+  NS_DECL_FRAMEARENA_HELPERS
+#ifdef DEBUG
+  NS_DECL_QUERYFRAME_TARGET(nsBulletFrame)
+  NS_DECL_QUERYFRAME
+#endif
+
+  explicit nsBulletFrame(nsStyleContext* aContext)
+    : nsFrame(aContext)
+    , mPadding(GetWritingMode())
+    , mIntrinsicSize(GetWritingMode())
+    , mRequestRegistered(false)
+    , mBlockingOnload(false)
+  { }
+  virtual ~nsBulletFrame();
+
+  NS_IMETHOD Notify(imgIRequest* aRequest, int32_t aType, const nsIntRect* aData);
+  NS_IMETHOD BlockOnload(imgIRequest* aRequest);
+  NS_IMETHOD UnblockOnload(imgIRequest* aRequest);
+
+  // nsIFrame
+  virtual void DestroyFrom(nsIFrame* aDestructRoot) override;
+  virtual void BuildDisplayList(nsDisplayListBuilder*   aBuilder,
+                                const nsRect&           aDirtyRect,
+                                const nsDisplayListSet& aLists) override;
+  virtual nsIAtom* GetType() const override;
+  virtual void DidSetStyleContext(nsStyleContext* aOldStyleContext) override;
+#ifdef DEBUG_FRAME_DUMP
+  virtual nsresult GetFrameName(nsAString& aResult) const override;
+#endif
+
+  virtual void Reflow(nsPresContext* aPresContext,
+                      ReflowOutput& aMetrics,
+                      const ReflowInput& aReflowInput,
+                      nsReflowStatus& aStatus) override;
+  virtual nscoord GetMinISize(nsRenderingContext *aRenderingContext) override;
+  virtual nscoord GetPrefISize(nsRenderingContext *aRenderingContext) override;
+  void AddInlineMinISize(nsRenderingContext* aRenderingContext,
+                         nsIFrame::InlineMinISizeData* aData) override;
+  void AddInlinePrefISize(nsRenderingContext* aRenderingContext,
+                          nsIFrame::InlinePrefISizeData* aData) override;
+
+  // nsBulletFrame
+  int32_t SetListItemOrdinal(int32_t aNextOrdinal, bool* aChanged,
+                             int32_t aIncrement);
+
+  /* get list item text, with prefix & suffix */
+  void GetListItemText(nsAString& aResult);
+
+  void GetSpokenText(nsAString& aText);
+                         
+  DrawResult PaintBullet(nsRenderingContext& aRenderingContext, nsPoint aPt,
+                         const nsRect& aDirtyRect, uint32_t aFlags,
+                         bool aDisableSubpixelAA);
+  
+  virtual bool IsEmpty() override;
+  virtual bool IsSelfEmpty() override;
+  virtual nscoord GetLogicalBaseline(mozilla::WritingMode aWritingMode) const override;
+
+  float GetFontSizeInflation() const;
+  bool HasFontSizeInflation() const {
+    return (GetStateBits() & BULLET_FRAME_HAS_FONT_INFLATION) != 0;
+  }
+  void SetFontSizeInflation(float aInflation);
+
+  int32_t GetOrdinal() { return mOrdinal; }
+
+  already_AddRefed<imgIContainer> GetImage() const;
+
+protected:
+  nsresult OnSizeAvailable(imgIRequest* aRequest, imgIContainer* aImage);
+
+  void AppendSpacingToPadding(nsFontMetrics* aFontMetrics,
+                              mozilla::LogicalMargin* aPadding);
+  void GetDesiredSize(nsPresContext* aPresContext,
+                      nsRenderingContext *aRenderingContext,
+                      ReflowOutput& aMetrics,
+                      float aFontSizeInflation,
+                      mozilla::LogicalMargin* aPadding);
+
+  void GetLoadGroup(nsPresContext *aPresContext, nsILoadGroup **aLoadGroup);
+  nsIDocument* GetOurCurrentDoc() const;
+
+  mozilla::LogicalMargin mPadding;
+  RefPtr<imgRequestProxy> mImageRequest;
+  RefPtr<nsBulletListener> mListener;
+
+  mozilla::LogicalSize mIntrinsicSize;
+  int32_t mOrdinal;
+
+private:
+  void RegisterImageRequest(bool aKnownToBeAnimated);
+  void DeregisterAndCancelImageRequest();
+
+  // This is a boolean flag indicating whether or not the current image request
+  // has been registered with the refresh driver.
+  bool mRequestRegistered : 1;
+
+  // Whether we're currently blocking onload.
+  bool mBlockingOnload : 1;
+};
+
+#endif /* nsBulletFrame_h___ */