LCOV - code coverage report
Current view: top level - layout/xul - nsDocElementBoxFrame.cpp (source / functions) Hit Total Coverage
Test: output.info Lines: 34 51 66.7 %
Date: 2017-07-14 16:53:18 Functions: 7 12 58.3 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* This Source Code Form is subject to the terms of the Mozilla Public
       3             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       4             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       5             : #include "nsHTMLParts.h"
       6             : #include "nsContainerFrame.h"
       7             : #include "nsCSSRendering.h"
       8             : #include "nsIDocument.h"
       9             : #include "nsPageFrame.h"
      10             : #include "nsIDOMEvent.h"
      11             : #include "nsStyleConsts.h"
      12             : #include "nsGkAtoms.h"
      13             : #include "nsIPresShell.h"
      14             : #include "nsBoxFrame.h"
      15             : #include "nsStackLayout.h"
      16             : #include "nsIAnonymousContentCreator.h"
      17             : #include "mozilla/dom/NodeInfo.h"
      18             : #include "nsIServiceManager.h"
      19             : #include "nsNodeInfoManager.h"
      20             : #include "nsContentCreatorFunctions.h"
      21             : #include "nsContentUtils.h"
      22             : #include "nsContentList.h"
      23             : #include "mozilla/dom/Element.h"
      24             : 
      25             : //#define DEBUG_REFLOW
      26             : 
      27             : using namespace mozilla::dom;
      28             : 
      29           0 : class nsDocElementBoxFrame final : public nsBoxFrame
      30             :                                  , public nsIAnonymousContentCreator
      31             : {
      32             : public:
      33             :   virtual void DestroyFrom(nsIFrame* aDestructRoot) override;
      34             : 
      35             :   friend nsIFrame* NS_NewBoxFrame(nsIPresShell* aPresShell,
      36             :                                   nsStyleContext* aContext);
      37             : 
      38           1 :   explicit nsDocElementBoxFrame(nsStyleContext* aContext)
      39           1 :     :nsBoxFrame(aContext, kClassID, true) {}
      40             : 
      41             :   NS_DECL_QUERYFRAME
      42         132 :   NS_DECL_FRAMEARENA_HELPERS(nsDocElementBoxFrame)
      43             : 
      44             :   // nsIAnonymousContentCreator
      45             :   virtual nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements) override;
      46             :   virtual void AppendAnonymousContentTo(nsTArray<nsIContent*>& aElements,
      47             :                                         uint32_t aFilter) override;
      48             : 
      49         887 :   virtual bool IsFrameOfType(uint32_t aFlags) const override
      50             :   {
      51             :     // Override nsBoxFrame.
      52         887 :     if (aFlags & (nsIFrame::eReplacedContainsBlock | nsIFrame::eReplaced))
      53           8 :       return false;
      54         879 :     return nsBoxFrame::IsFrameOfType(aFlags);
      55             :   }
      56             : 
      57             : #ifdef DEBUG_FRAME_DUMP
      58             :   virtual nsresult GetFrameName(nsAString& aResult) const override;
      59             : #endif
      60             : private:
      61             :   nsCOMPtr<Element> mPopupgroupContent;
      62             :   nsCOMPtr<Element> mTooltipContent;
      63             : };
      64             : 
      65             : //----------------------------------------------------------------------
      66             : 
      67             : nsContainerFrame*
      68           1 : NS_NewDocElementBoxFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
      69             : {
      70           1 :   return new (aPresShell) nsDocElementBoxFrame(aContext);
      71             : }
      72             : 
      73           1 : NS_IMPL_FRAMEARENA_HELPERS(nsDocElementBoxFrame)
      74             : 
      75             : void
      76           0 : nsDocElementBoxFrame::DestroyFrom(nsIFrame* aDestructRoot)
      77             : {
      78           0 :   nsContentUtils::DestroyAnonymousContent(&mPopupgroupContent);
      79           0 :   nsContentUtils::DestroyAnonymousContent(&mTooltipContent);
      80           0 :   nsBoxFrame::DestroyFrom(aDestructRoot);
      81           0 : }
      82             : 
      83             : nsresult
      84           1 : nsDocElementBoxFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
      85             : {
      86           1 :   nsIDocument* doc = mContent->GetComposedDoc();
      87           1 :   if (!doc) {
      88             :     // The page is currently being torn down.  Why bother.
      89           0 :     return NS_ERROR_FAILURE;
      90             :   }
      91           1 :   nsNodeInfoManager *nodeInfoManager = doc->NodeInfoManager();
      92             : 
      93             :   // create the top-secret popupgroup node. shhhhh!
      94           2 :   RefPtr<NodeInfo> nodeInfo;
      95           2 :   nodeInfo = nodeInfoManager->GetNodeInfo(nsGkAtoms::popupgroup,
      96             :                                           nullptr, kNameSpaceID_XUL,
      97           1 :                                           nsIDOMNode::ELEMENT_NODE);
      98           1 :   NS_ENSURE_TRUE(nodeInfo, NS_ERROR_OUT_OF_MEMORY);
      99             : 
     100           2 :   nsresult rv = NS_NewXULElement(getter_AddRefs(mPopupgroupContent),
     101           3 :                                  nodeInfo.forget());
     102           1 :   NS_ENSURE_SUCCESS(rv, rv);
     103             : 
     104           1 :   if (!aElements.AppendElement(mPopupgroupContent))
     105           0 :     return NS_ERROR_OUT_OF_MEMORY;
     106             : 
     107             :   // create the top-secret default tooltip node. shhhhh!
     108           2 :   nodeInfo = nodeInfoManager->GetNodeInfo(nsGkAtoms::tooltip, nullptr,
     109             :                                           kNameSpaceID_XUL,
     110           1 :                                           nsIDOMNode::ELEMENT_NODE);
     111           1 :   NS_ENSURE_TRUE(nodeInfo, NS_ERROR_OUT_OF_MEMORY);
     112             : 
     113           1 :   rv = NS_NewXULElement(getter_AddRefs(mTooltipContent), nodeInfo.forget());
     114           1 :   NS_ENSURE_SUCCESS(rv, rv);
     115             : 
     116           2 :   mTooltipContent->SetAttr(kNameSpaceID_None, nsGkAtoms::_default,
     117           3 :                            NS_LITERAL_STRING("true"), false);
     118             : 
     119           1 :   if (!aElements.AppendElement(mTooltipContent))
     120           0 :     return NS_ERROR_OUT_OF_MEMORY;
     121             : 
     122           1 :   return NS_OK;
     123             : }
     124             : 
     125             : void
     126           0 : nsDocElementBoxFrame::AppendAnonymousContentTo(nsTArray<nsIContent*>& aElements,
     127             :                                                uint32_t aFilter)
     128             : {
     129           0 :   if (mPopupgroupContent) {
     130           0 :     aElements.AppendElement(mPopupgroupContent);
     131             :   }
     132             : 
     133           0 :   if (mTooltipContent) {
     134           0 :     aElements.AppendElement(mTooltipContent);
     135             :   }
     136           0 : }
     137             : 
     138         132 : NS_QUERYFRAME_HEAD(nsDocElementBoxFrame)
     139           1 :   NS_QUERYFRAME_ENTRY(nsIAnonymousContentCreator)
     140         131 : NS_QUERYFRAME_TAIL_INHERITING(nsBoxFrame)
     141             : 
     142             : #ifdef DEBUG_FRAME_DUMP
     143             : nsresult
     144           0 : nsDocElementBoxFrame::GetFrameName(nsAString& aResult) const
     145             : {
     146           0 :   return MakeFrameName(NS_LITERAL_STRING("DocElementBox"), aResult);
     147             : }
     148             : #endif

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