Adding upstream version 86.0.1.upstream/86.0.1upstream

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

1 files changed, 219 insertions, 0 deletions

diff --git a/layout/xul/nsRootBoxFrame.cpp b/layout/xul/nsRootBoxFrame.cpp
new file mode 100644
index 0000000000..9cf8757cb4
--- /dev/null
+++ b/layout/xul/nsRootBoxFrame.cpp
@@ -0,0 +1,219 @@
+/* -*- 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/. */
+
+#include "nsHTMLParts.h"
+#include "nsStyleConsts.h"
+#include "nsGkAtoms.h"
+#include "nsBoxFrame.h"
+#include "nsDisplayList.h"
+#include "nsStackLayout.h"
+#include "nsIPopupContainer.h"
+#include "nsIContent.h"
+#include "nsFrameManager.h"
+#include "nsLayoutUtils.h"
+#include "mozilla/BasicEvents.h"
+#include "mozilla/DisplayPortUtils.h"
+#include "mozilla/PresShell.h"
+
+using namespace mozilla;
+
+// Interface IDs
+
+// static
+nsIPopupContainer* nsIPopupContainer::GetPopupContainer(PresShell* aPresShell) {
+  if (!aPresShell) {
+    return nullptr;
+  }
+  nsIFrame* rootFrame = aPresShell->GetRootFrame();
+  if (!rootFrame) {
+    return nullptr;
+  }
+
+  if (rootFrame) {
+    rootFrame = rootFrame->PrincipalChildList().FirstChild();
+  }
+
+  nsIPopupContainer* rootBox = do_QueryFrame(rootFrame);
+
+  // If the rootBox was not found yet this may be a top level non-XUL document.
+  if (rootFrame && !rootBox) {
+    // In a non-XUL document the rootFrame here will be a nsHTMLScrollFrame,
+    // get the nsCanvasFrame (which is the popup container) from it.
+    rootFrame = rootFrame->GetContentInsertionFrame();
+    rootBox = do_QueryFrame(rootFrame);
+  }
+
+  return rootBox;
+}
+
+class nsRootBoxFrame final : public nsBoxFrame, public nsIPopupContainer {
+ public:
+  friend nsIFrame* NS_NewBoxFrame(mozilla::PresShell* aPresShell,
+                                  ComputedStyle* aStyle);
+
+  explicit nsRootBoxFrame(ComputedStyle* aStyle, nsPresContext* aPresContext);
+
+  NS_DECL_QUERYFRAME
+  NS_DECL_FRAMEARENA_HELPERS(nsRootBoxFrame)
+
+  virtual nsPopupSetFrame* GetPopupSetFrame() override;
+  virtual void SetPopupSetFrame(nsPopupSetFrame* aPopupSet) override;
+  virtual dom::Element* GetDefaultTooltip() override;
+  virtual void SetDefaultTooltip(dom::Element* aTooltip) override;
+
+  virtual void AppendFrames(ChildListID aListID,
+                            nsFrameList& aFrameList) override;
+  virtual void InsertFrames(ChildListID aListID, nsIFrame* aPrevFrame,
+                            const nsLineList::iterator* aPrevFrameLine,
+                            nsFrameList& aFrameList) override;
+  virtual void RemoveFrame(ChildListID aListID, nsIFrame* aOldFrame) override;
+
+  virtual void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
+                      const ReflowInput& aReflowInput,
+                      nsReflowStatus& aStatus) override;
+  virtual nsresult HandleEvent(nsPresContext* aPresContext,
+                               WidgetGUIEvent* aEvent,
+                               nsEventStatus* aEventStatus) override;
+
+  virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
+                                const nsDisplayListSet& aLists) override;
+
+  virtual bool IsFrameOfType(uint32_t aFlags) const override {
+    // Override bogus IsFrameOfType in nsBoxFrame.
+    if (aFlags & (nsIFrame::eReplacedContainsBlock | nsIFrame::eReplaced))
+      return false;
+    return nsBoxFrame::IsFrameOfType(aFlags);
+  }
+
+#ifdef DEBUG_FRAME_DUMP
+  virtual nsresult GetFrameName(nsAString& aResult) const override;
+#endif
+
+  nsPopupSetFrame* mPopupSetFrame;
+
+ protected:
+  dom::Element* mDefaultTooltip;
+};
+
+//----------------------------------------------------------------------
+
+nsContainerFrame* NS_NewRootBoxFrame(PresShell* aPresShell,
+                                     ComputedStyle* aStyle) {
+  return new (aPresShell) nsRootBoxFrame(aStyle, aPresShell->GetPresContext());
+}
+
+NS_IMPL_FRAMEARENA_HELPERS(nsRootBoxFrame)
+
+nsRootBoxFrame::nsRootBoxFrame(ComputedStyle* aStyle,
+                               nsPresContext* aPresContext)
+    : nsBoxFrame(aStyle, aPresContext, kClassID, true),
+      mPopupSetFrame(nullptr),
+      mDefaultTooltip(nullptr) {
+  nsCOMPtr<nsBoxLayout> layout;
+  NS_NewStackLayout(layout);
+  SetXULLayoutManager(layout);
+}
+
+void nsRootBoxFrame::AppendFrames(ChildListID aListID,
+                                  nsFrameList& aFrameList) {
+  MOZ_ASSERT(aListID == kPrincipalList, "unexpected child list ID");
+  MOZ_ASSERT(mFrames.IsEmpty(), "already have a child frame");
+  nsBoxFrame::AppendFrames(aListID, aFrameList);
+}
+
+void nsRootBoxFrame::InsertFrames(ChildListID aListID, nsIFrame* aPrevFrame,
+                                  const nsLineList::iterator* aPrevFrameLine,
+                                  nsFrameList& aFrameList) {
+  // Because we only support a single child frame inserting is the same
+  // as appending.
+  MOZ_ASSERT(!aPrevFrame, "unexpected previous sibling frame");
+  AppendFrames(aListID, aFrameList);
+}
+
+void nsRootBoxFrame::RemoveFrame(ChildListID aListID, nsIFrame* aOldFrame) {
+  NS_ASSERTION(aListID == kPrincipalList, "unexpected child list ID");
+  if (aOldFrame == mFrames.FirstChild()) {
+    nsBoxFrame::RemoveFrame(aListID, aOldFrame);
+  } else {
+    MOZ_CRASH("unknown aOldFrame");
+  }
+}
+
+void nsRootBoxFrame::Reflow(nsPresContext* aPresContext,
+                            ReflowOutput& aDesiredSize,
+                            const ReflowInput& aReflowInput,
+                            nsReflowStatus& aStatus) {
+  DO_GLOBAL_REFLOW_COUNT("nsRootBoxFrame");
+  MOZ_ASSERT(aStatus.IsEmpty(), "Caller should pass a fresh reflow status!");
+
+  return nsBoxFrame::Reflow(aPresContext, aDesiredSize, aReflowInput, aStatus);
+}
+
+void nsRootBoxFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
+                                      const nsDisplayListSet& aLists) {
+  if (mContent && mContent->GetProperty(nsGkAtoms::DisplayPortMargins)) {
+    // The XUL document's root element may have displayport margins set in
+    // ChromeProcessController::InitializeRoot, and we should to supply the
+    // base rect.
+    nsRect displayPortBase =
+        aBuilder->GetVisibleRect().Intersect(nsRect(nsPoint(0, 0), GetSize()));
+    DisplayPortUtils::SetDisplayPortBase(mContent, displayPortBase);
+  }
+
+  // root boxes don't need a debug border/outline or a selection overlay...
+  // They *may* have a background propagated to them, so force creation
+  // of a background display list element.
+  DisplayBorderBackgroundOutline(aBuilder, aLists, true);
+
+  BuildDisplayListForChildren(aBuilder, aLists);
+}
+
+nsresult nsRootBoxFrame::HandleEvent(nsPresContext* aPresContext,
+                                     WidgetGUIEvent* aEvent,
+                                     nsEventStatus* aEventStatus) {
+  NS_ENSURE_ARG_POINTER(aEventStatus);
+  if (nsEventStatus_eConsumeNoDefault == *aEventStatus) {
+    return NS_OK;
+  }
+
+  if (aEvent->mMessage == eMouseUp) {
+    nsIFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
+  }
+
+  return NS_OK;
+}
+
+nsPopupSetFrame* nsRootBoxFrame::GetPopupSetFrame() { return mPopupSetFrame; }
+
+void nsRootBoxFrame::SetPopupSetFrame(nsPopupSetFrame* aPopupSet) {
+  // Under normal conditions this should only be called once.  However,
+  // if something triggers ReconstructDocElementHierarchy, we will
+  // destroy this frame's child (the nsDocElementBoxFrame), but not this
+  // frame.  This will cause the popupset to remove itself by calling
+  // |SetPopupSetFrame(nullptr)|, and then we'll be able to accept a new
+  // popupset.  Since the anonymous content is associated with the
+  // nsDocElementBoxFrame, we'll get a new popupset when the new doc
+  // element box frame is created.
+  MOZ_ASSERT(!aPopupSet || !mPopupSetFrame,
+             "Popup set is already defined! Only 1 allowed.");
+  mPopupSetFrame = aPopupSet;
+}
+
+dom::Element* nsRootBoxFrame::GetDefaultTooltip() { return mDefaultTooltip; }
+
+void nsRootBoxFrame::SetDefaultTooltip(dom::Element* aTooltip) {
+  mDefaultTooltip = aTooltip;
+}
+
+NS_QUERYFRAME_HEAD(nsRootBoxFrame)
+  NS_QUERYFRAME_ENTRY(nsIPopupContainer)
+NS_QUERYFRAME_TAIL_INHERITING(nsBoxFrame)
+
+#ifdef DEBUG_FRAME_DUMP
+nsresult nsRootBoxFrame::GetFrameName(nsAString& aResult) const {
+  return MakeFrameName(u"RootBox"_ns, aResult);
+}
+#endif