Add m-esr52 at 52.6.0

1 files changed, 168 insertions, 0 deletions

diff --git a/layout/generic/nsSubDocumentFrame.h b/layout/generic/nsSubDocumentFrame.h
new file mode 100644
index 0000000000..54f08d4fe6
--- /dev/null
+++ b/layout/generic/nsSubDocumentFrame.h
@@ -0,0 +1,168 @@
+/* -*- Mode: C++; tab-width: 20; 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 NSSUBDOCUMENTFRAME_H_
+#define NSSUBDOCUMENTFRAME_H_
+
+#include "mozilla/Attributes.h"
+#include "nsAtomicContainerFrame.h"
+#include "nsIReflowCallback.h"
+#include "nsFrameLoader.h"
+#include "Units.h"
+
+/******************************************************************************
+ * nsSubDocumentFrame
+ *****************************************************************************/
+class nsSubDocumentFrame : public nsAtomicContainerFrame,
+                           public nsIReflowCallback
+{
+public:
+  NS_DECL_QUERYFRAME_TARGET(nsSubDocumentFrame)
+  NS_DECL_FRAMEARENA_HELPERS
+
+  explicit nsSubDocumentFrame(nsStyleContext* aContext);
+
+#ifdef DEBUG_FRAME_DUMP
+  void List(FILE* out = stderr, const char* aPrefix = "", uint32_t aFlags = 0) const override;
+  virtual nsresult GetFrameName(nsAString& aResult) const override;
+#endif
+
+  NS_DECL_QUERYFRAME
+
+  virtual nsIAtom* GetType() const override;
+
+  virtual bool IsFrameOfType(uint32_t aFlags) const override
+  {
+    return nsAtomicContainerFrame::IsFrameOfType(aFlags &
+      ~(nsIFrame::eReplaced |
+        nsIFrame::eReplacedSizing |
+        nsIFrame::eReplacedContainsBlock));
+  }
+
+  virtual void Init(nsIContent*       aContent,
+                    nsContainerFrame* aParent,
+                    nsIFrame*         aPrevInFlow) override;
+
+  virtual void DestroyFrom(nsIFrame* aDestructRoot) override;
+
+  virtual nscoord GetMinISize(nsRenderingContext *aRenderingContext) override;
+  virtual nscoord GetPrefISize(nsRenderingContext *aRenderingContext) override;
+
+  virtual mozilla::IntrinsicSize GetIntrinsicSize() override;
+  virtual nsSize  GetIntrinsicRatio() override;
+
+  virtual mozilla::LogicalSize
+  ComputeAutoSize(nsRenderingContext*         aRenderingContext,
+                  mozilla::WritingMode        aWritingMode,
+                  const mozilla::LogicalSize& aCBSize,
+                  nscoord                     aAvailableISize,
+                  const mozilla::LogicalSize& aMargin,
+                  const mozilla::LogicalSize& aBorder,
+                  const mozilla::LogicalSize& aPadding,
+                  ComputeSizeFlags            aFlags) override;
+
+  virtual mozilla::LogicalSize
+  ComputeSize(nsRenderingContext*         aRenderingContext,
+              mozilla::WritingMode        aWritingMode,
+              const mozilla::LogicalSize& aCBSize,
+              nscoord                     aAvailableISize,
+              const mozilla::LogicalSize& aMargin,
+              const mozilla::LogicalSize& aBorder,
+              const mozilla::LogicalSize& aPadding,
+              ComputeSizeFlags            aFlags) override;
+
+  virtual void Reflow(nsPresContext*           aPresContext,
+                      ReflowOutput&     aDesiredSize,
+                      const ReflowInput& aReflowInput,
+                      nsReflowStatus&          aStatus) 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;
+
+  // if the content is "visibility:hidden", then just hide the view
+  // and all our contents. We don't extend "visibility:hidden" to
+  // the child content ourselves, since it belongs to a different
+  // document and CSS doesn't inherit in there.
+  virtual bool SupportsVisibilityHidden() override { return false; }
+
+#ifdef ACCESSIBILITY
+  virtual mozilla::a11y::AccType AccessibleType() override;
+#endif
+
+  nsresult GetDocShell(nsIDocShell **aDocShell);
+  nsresult BeginSwapDocShells(nsIFrame* aOther);
+  void EndSwapDocShells(nsIFrame* aOther);
+  nsView* EnsureInnerView();
+  nsIFrame* GetSubdocumentRootFrame();
+  enum {
+    IGNORE_PAINT_SUPPRESSION = 0x1
+  };
+  nsIPresShell* GetSubdocumentPresShellForPainting(uint32_t aFlags);
+  mozilla::ScreenIntSize GetSubdocumentSize();
+
+  // nsIReflowCallback
+  virtual bool ReflowFinished() override;
+  virtual void ReflowCallbackCanceled() override;
+
+  bool ShouldClipSubdocument()
+  {
+    nsFrameLoader* frameLoader = FrameLoader();
+    return !frameLoader || frameLoader->ShouldClipSubdocument();
+  }
+
+  bool ShouldClampScrollPosition()
+  {
+    nsFrameLoader* frameLoader = FrameLoader();
+    return !frameLoader || frameLoader->ShouldClampScrollPosition();
+  }
+
+  /**
+   * Return true if pointer event hit-testing should be allowed to target
+   * content in the subdocument.
+   */
+  bool PassPointerEventsToChildren();
+
+protected:
+  friend class AsyncFrameInit;
+
+  // Helper method to look up the HTML marginwidth & marginheight attributes.
+  mozilla::CSSIntSize GetMarginAttributes();
+
+  nsFrameLoader* FrameLoader();
+
+  bool IsInline() { return mIsInline; }
+
+  nscoord GetIntrinsicISize();
+  nscoord GetIntrinsicBSize();
+
+  // Show our document viewer. The document viewer is hidden via a script
+  // runner, so that we can save and restore the presentation if we're
+  // being reframed.
+  void ShowViewer();
+
+  /* Obtains the frame we should use for intrinsic size information if we are
+   * an HTML <object>, <embed> or <applet> (a replaced element - not <iframe>)
+   * and our sub-document has an intrinsic size. The frame returned is the
+   * frame for the document element of the document we're embedding.
+   *
+   * Called "Obtain*" and not "Get*" because of comment on GetDocShell that
+   * says it should be called ObtainDocShell because of its side effects.
+   */
+  nsIFrame* ObtainIntrinsicSizeFrame();
+
+  RefPtr<nsFrameLoader> mFrameLoader;
+  nsView* mInnerView;
+  bool mIsInline;
+  bool mPostedReflowCallback;
+  bool mDidCreateDoc;
+  bool mCallingShow;
+};
+
+#endif /* NSSUBDOCUMENTFRAME_H_ */