Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 184 insertions, 0 deletions

diff --git a/layout/xul/nsImageBoxFrame.h b/layout/xul/nsImageBoxFrame.h
new file mode 100644
index 0000000000..e233ab9d70
--- /dev/null
+++ b/layout/xul/nsImageBoxFrame.h
@@ -0,0 +1,184 @@
+/* -*- 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 nsImageBoxFrame_h___
+#define nsImageBoxFrame_h___
+
+#include "mozilla/Attributes.h"
+#include "nsLeafBoxFrame.h"
+
+#include "imgIRequest.h"
+#include "imgIContainer.h"
+#include "imgINotificationObserver.h"
+
+class imgRequestProxy;
+class nsImageBoxFrame;
+
+namespace mozilla {
+class nsDisplayXULImage;
+class PresShell;
+}  // namespace mozilla
+
+class nsImageBoxListener final : public imgINotificationObserver {
+ public:
+  explicit nsImageBoxListener(nsImageBoxFrame* frame);
+
+  NS_DECL_ISUPPORTS
+  NS_DECL_IMGINOTIFICATIONOBSERVER
+
+  void ClearFrame() { mFrame = nullptr; }
+
+ private:
+  virtual ~nsImageBoxListener();
+
+  nsImageBoxFrame* mFrame;
+};
+
+class nsImageBoxFrame final : public nsLeafBoxFrame {
+ public:
+  typedef mozilla::image::ImgDrawResult ImgDrawResult;
+  typedef mozilla::layers::ImageContainer ImageContainer;
+  typedef mozilla::layers::LayerManager LayerManager;
+
+  friend class mozilla::nsDisplayXULImage;
+  NS_DECL_FRAMEARENA_HELPERS(nsImageBoxFrame)
+  NS_DECL_QUERYFRAME
+
+  virtual nsSize GetXULPrefSize(nsBoxLayoutState& aBoxLayoutState) override;
+  virtual nsSize GetXULMinSize(nsBoxLayoutState& aBoxLayoutState) override;
+  virtual nscoord GetXULBoxAscent(nsBoxLayoutState& aBoxLayoutState) override;
+  virtual void MarkIntrinsicISizesDirty() override;
+
+  void Notify(imgIRequest* aRequest, int32_t aType, const nsIntRect* aData);
+
+  friend nsIFrame* NS_NewImageBoxFrame(mozilla::PresShell* aPresShell,
+                                       ComputedStyle* aStyle);
+
+  virtual void Init(nsIContent* aContent, nsContainerFrame* aParent,
+                    nsIFrame* asPrevInFlow) override;
+
+  virtual nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
+                                    int32_t aModType) override;
+
+  virtual void DidSetComputedStyle(ComputedStyle* aOldStyle) override;
+
+  virtual void DestroyFrom(nsIFrame* aDestructRoot,
+                           PostDestroyData& aPostDestroyData) override;
+
+#ifdef DEBUG_FRAME_DUMP
+  virtual nsresult GetFrameName(nsAString& aResult) const override;
+#endif
+
+  /**
+   * Gets the image to be loaded from the current style. May be null if themed,
+   * or if not an url image.
+   *
+   * TODO(emilio): Maybe support list-style-image: linear-gradient() etc?
+   */
+  const mozilla::StyleImage* GetImageFromStyle(const ComputedStyle&) const;
+  const mozilla::StyleImage* GetImageFromStyle() const {
+    return GetImageFromStyle(*Style());
+  }
+
+  mozilla::ImageResolution GetImageResolution() const;
+
+  /**
+   * Update mUseSrcAttr from appropriate content attributes or from
+   * style, throw away the current image, and load the appropriate
+   * image.
+   * */
+  void UpdateImage();
+
+  /**
+   * Update mLoadFlags from content attributes. Does not attempt to reload the
+   * image using the new load flags.
+   */
+  void UpdateLoadFlags();
+
+  virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
+                                const nsDisplayListSet& aLists) override;
+
+  virtual ~nsImageBoxFrame();
+
+  already_AddRefed<imgIContainer> GetImageContainerForPainting(
+      const nsPoint& aPt, ImgDrawResult& aDrawResult,
+      Maybe<nsPoint>& aAnchorPoint, nsRect& aDest);
+
+  ImgDrawResult PaintImage(gfxContext& aRenderingContext,
+                           const nsRect& aDirtyRect, nsPoint aPt,
+                           uint32_t aFlags);
+
+  ImgDrawResult CreateWebRenderCommands(
+      mozilla::wr::DisplayListBuilder& aBuilder,
+      mozilla::wr::IpcResourceUpdateQueue& aResources,
+      const mozilla::layers::StackingContextHelper& aSc,
+      mozilla::layers::RenderRootStateManager* aManager, nsDisplayItem* aItem,
+      nsPoint aPt, uint32_t aFlags);
+
+  bool CanOptimizeToImageLayer();
+
+  nsRect GetDestRect(const nsPoint& aOffset, Maybe<nsPoint>& aAnchorPoint);
+
+ protected:
+  explicit nsImageBoxFrame(ComputedStyle* aStyle, nsPresContext* aPresContext);
+
+  virtual void GetImageSize();
+
+ private:
+  void OnSizeAvailable(imgIRequest* aRequest, imgIContainer* aImage);
+  void OnDecodeComplete(imgIRequest* aRequest);
+  void OnLoadComplete(imgIRequest* aRequest, nsresult aStatus);
+  void OnImageIsAnimated(imgIRequest* aRequest);
+  void OnFrameUpdate(imgIRequest* aRequest);
+
+  nsRect mSubRect;  ///< If set, indicates that only the portion of the image
+                    ///< specified by the rect should be used.
+  nsSize mIntrinsicSize;
+  nsSize mImageSize;
+
+  RefPtr<imgRequestProxy> mImageRequest;
+  nsCOMPtr<imgINotificationObserver> mListener;
+
+  int32_t mLoadFlags;
+
+  // Boolean variable to determine if the current image request has been
+  // registered with the refresh driver.
+  bool mRequestRegistered;
+
+  bool mUseSrcAttr;  ///< Whether or not the image src comes from an attribute.
+  bool mSuppressStyleCheck;
+};  // class nsImageBoxFrame
+
+namespace mozilla {
+class nsDisplayXULImage final : public nsPaintedDisplayItem {
+ public:
+  nsDisplayXULImage(nsDisplayListBuilder* aBuilder, nsImageBoxFrame* aFrame)
+      : nsPaintedDisplayItem(aBuilder, aFrame) {
+    MOZ_COUNT_CTOR(nsDisplayXULImage);
+  }
+  MOZ_COUNTED_DTOR_OVERRIDE(nsDisplayXULImage)
+
+  virtual nsRect GetBounds(nsDisplayListBuilder* aBuilder,
+                           bool* aSnap) const override {
+    *aSnap = true;
+    return nsRect(ToReferenceFrame(), Frame()->GetSize());
+  }
+  // Doesn't handle HitTest because nsLeafBoxFrame already creates an
+  // event receiver for us
+  virtual void Paint(nsDisplayListBuilder* aBuilder, gfxContext* aCtx) override;
+
+  virtual bool CreateWebRenderCommands(
+      mozilla::wr::DisplayListBuilder& aBuilder,
+      mozilla::wr::IpcResourceUpdateQueue& aResources,
+      const StackingContextHelper& aSc,
+      mozilla::layers::RenderRootStateManager* aManager,
+      nsDisplayListBuilder* aDisplayListBuilder) override;
+
+  NS_DISPLAY_DECL_NAME("XULImage", TYPE_XUL_IMAGE)
+};
+
+}  // namespace mozilla
+
+#endif /* nsImageBoxFrame_h___ */