LCOV - code coverage report
Current view: top level - dom/xbl - XBLChildrenElement.h (source / functions) Hit Total Coverage
Test: output.info Lines: 53 62 85.5 %
Date: 2017-07-14 16:53:18 Functions: 17 26 65.4 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2             : /* vim: set ts=8 sts=2 et sw=2 tw=80: */
       3             : /* This Source Code Form is subject to the terms of the Mozilla Public
       4             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       5             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       6             : 
       7             : #ifndef nsXBLChildrenElement_h___
       8             : #define nsXBLChildrenElement_h___
       9             : 
      10             : #include "nsIDOMElement.h"
      11             : #include "nsINodeList.h"
      12             : #include "nsBindingManager.h"
      13             : #include "mozilla/dom/nsXMLElement.h"
      14             : 
      15             : class nsAnonymousContentList;
      16             : 
      17             : namespace mozilla {
      18             : namespace dom {
      19             : 
      20             : class XBLChildrenElement : public nsXMLElement
      21             : {
      22             : public:
      23         163 :   explicit XBLChildrenElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
      24         163 :     : nsXMLElement(aNodeInfo)
      25             :   {
      26         163 :   }
      27          71 :   explicit XBLChildrenElement(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
      28          71 :     : nsXMLElement(aNodeInfo)
      29             :   {
      30          71 :   }
      31             : 
      32             :   // nsISupports
      33             :   NS_DECL_ISUPPORTS_INHERITED
      34             : 
      35             :   // nsINode interface methods
      36             :   virtual nsresult Clone(mozilla::dom::NodeInfo* aNodeInfo, nsINode** aResult,
      37             :                          bool aPreallocateChildren) const override;
      38             : 
      39           0 :   virtual nsIDOMNode* AsDOMNode() override { return this; }
      40             : 
      41         413 :   void AppendInsertedChild(nsIContent* aChild)
      42             :   {
      43         413 :     mInsertedChildren.AppendElement(aChild);
      44         413 :     aChild->SetXBLInsertionParent(GetParent());
      45             : 
      46             :     // Appending an inserted child causes the inserted
      47             :     // children to be projected instead of default content.
      48         413 :     MaybeRemoveDefaultContent();
      49         413 :   }
      50             : 
      51          17 :   void InsertInsertedChildAt(nsIContent* aChild, uint32_t aIndex)
      52             :   {
      53          17 :     mInsertedChildren.InsertElementAt(aIndex, aChild);
      54          17 :     aChild->SetXBLInsertionParent(GetParent());
      55             : 
      56             :     // Inserting an inserted child causes the inserted
      57             :     // children to be projected instead of default content.
      58          17 :     MaybeRemoveDefaultContent();
      59          17 :   }
      60             : 
      61           2 :   void RemoveInsertedChild(nsIContent* aChild)
      62             :   {
      63             :     // Can't use this assertion as we cheat for dynamic insertions and
      64             :     // only insert in the innermost insertion point.
      65             :     //NS_ASSERTION(mInsertedChildren.Contains(aChild),
      66             :     //             "Removing child that's not there");
      67           2 :     mInsertedChildren.RemoveElement(aChild);
      68             : 
      69             :     // After removing the inserted child, default content
      70             :     // may be projected into this insertion point.
      71           2 :     MaybeSetupDefaultContent();
      72           2 :   }
      73             : 
      74          12 :   void ClearInsertedChildren()
      75             :   {
      76          21 :     for (uint32_t c = 0; c < mInsertedChildren.Length(); ++c) {
      77           9 :       mInsertedChildren[c]->SetXBLInsertionParent(nullptr);
      78             :     }
      79          12 :     mInsertedChildren.Clear();
      80             : 
      81             :     // After clearing inserted children, default content
      82             :     // will be projected into this insertion point.
      83          12 :     MaybeSetupDefaultContent();
      84          12 :   }
      85             : 
      86         175 :   void MaybeSetupDefaultContent()
      87             :   {
      88         175 :     if (!HasInsertedChildren()) {
      89          98 :       for (nsIContent* child = static_cast<nsINode*>(this)->GetFirstChild();
      90          98 :            child;
      91           5 :            child = child->GetNextSibling()) {
      92           5 :         child->SetXBLInsertionParent(GetParent());
      93             :       }
      94             :     }
      95         175 :   }
      96             : 
      97         430 :   void MaybeRemoveDefaultContent()
      98             :   {
      99         430 :     if (!HasInsertedChildren()) {
     100           0 :       for (nsIContent* child = static_cast<nsINode*>(this)->GetFirstChild();
     101           0 :            child;
     102           0 :            child = child->GetNextSibling()) {
     103           0 :         child->SetXBLInsertionParent(nullptr);
     104             :       }
     105             :     }
     106         430 :   }
     107             : 
     108         162 :   uint32_t InsertedChildrenLength()
     109             :   {
     110         162 :     return mInsertedChildren.Length();
     111             :   }
     112             : 
     113         794 :   bool HasInsertedChildren()
     114             :   {
     115         794 :     return !mInsertedChildren.IsEmpty();
     116             :   }
     117             : 
     118          13 :   int32_t IndexOfInsertedChild(nsIContent* aChild)
     119             :   {
     120          13 :     return mInsertedChildren.IndexOf(aChild);
     121             :   }
     122             : 
     123          89 :   bool Includes(nsIContent* aChild)
     124             :   {
     125          89 :     NS_ASSERTION(!mIncludes.IsEmpty(),
     126             :                  "Shouldn't check for includes on default insertion point");
     127          89 :     return mIncludes.Contains(aChild->NodeInfo()->NameAtom());
     128             :   }
     129             : 
     130         173 :   bool IsDefaultInsertion()
     131             :   {
     132         173 :     return mIncludes.IsEmpty();
     133             :   }
     134             : 
     135         130 :   nsIContent* InsertedChild(uint32_t aIndex)
     136             :   {
     137         130 :     return mInsertedChildren[aIndex];
     138             :   }
     139             : 
     140             : protected:
     141             :   ~XBLChildrenElement();
     142             :   virtual nsresult BeforeSetAttr(int32_t aNamespaceID, nsIAtom* aName,
     143             :                                  const nsAttrValueOrString* aValue,
     144             :                                  bool aNotify) override;
     145             : 
     146             : private:
     147             :   nsTArray<nsIContent*> mInsertedChildren; // WEAK
     148             :   nsTArray<nsCOMPtr<nsIAtom> > mIncludes;
     149             : };
     150             : 
     151             : } // namespace dom
     152             : } // namespace mozilla
     153             : 
     154             : class nsAnonymousContentList : public nsINodeList
     155             : {
     156             : public:
     157           9 :   explicit nsAnonymousContentList(nsIContent* aParent)
     158           9 :     : mParent(aParent)
     159             :   {
     160           9 :   }
     161             : 
     162             :   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
     163          18 :   NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(nsAnonymousContentList)
     164             :   // nsIDOMNodeList interface
     165             :   NS_DECL_NSIDOMNODELIST
     166             : 
     167             :   // nsINodeList interface
     168             :   virtual int32_t IndexOf(nsIContent* aContent) override;
     169           0 :   virtual nsINode* GetParentObject() override { return mParent; }
     170             :   virtual nsIContent* Item(uint32_t aIndex) override;
     171             : 
     172             :   virtual JSObject* WrapObject(JSContext *cx, JS::Handle<JSObject*> aGivenProto) override;
     173             : 
     174             :   bool IsListFor(nsIContent* aContent) {
     175             :     return mParent == aContent;
     176             :   }
     177             : 
     178             : private:
     179           0 :   virtual ~nsAnonymousContentList()
     180           0 :   {
     181           0 :   }
     182             : 
     183             :   nsCOMPtr<nsIContent> mParent;
     184             : };
     185             : 
     186             : #endif // nsXBLChildrenElement_h___

Generated by: LCOV version 1.13