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37 : #include "nsHTMLParts.h"
38 : #include "nsContainerFrame.h"
39 : #include "nsCSSRendering.h"
40 : #include "nsIDocument.h"
41 : #include "nsPageFrame.h"
42 : #include "nsGUIEvent.h"
43 : #include "nsIDOMEvent.h"
44 : #include "nsStyleConsts.h"
45 : #include "nsGkAtoms.h"
46 : #include "nsIPresShell.h"
47 : #include "nsBoxFrame.h"
48 : #include "nsStackLayout.h"
49 : #include "nsIAnonymousContentCreator.h"
50 : #include "nsINodeInfo.h"
51 : #include "nsIServiceManager.h"
52 : #include "nsNodeInfoManager.h"
53 : #include "nsContentCreatorFunctions.h"
54 : #include "nsContentUtils.h"
55 :
56 : //#define DEBUG_REFLOW
57 :
58 : class nsDocElementBoxFrame : public nsBoxFrame,
59 : public nsIAnonymousContentCreator
60 0 : {
61 : public:
62 : virtual void DestroyFrom(nsIFrame* aDestructRoot);
63 :
64 : friend nsIFrame* NS_NewBoxFrame(nsIPresShell* aPresShell,
65 : nsStyleContext* aContext);
66 :
67 0 : nsDocElementBoxFrame(nsIPresShell* aShell, nsStyleContext* aContext)
68 0 : :nsBoxFrame(aShell, aContext, true) {}
69 :
70 : NS_DECL_QUERYFRAME
71 : NS_DECL_FRAMEARENA_HELPERS
72 :
73 : // nsIAnonymousContentCreator
74 : virtual nsresult CreateAnonymousContent(nsTArray<ContentInfo>& aElements);
75 : virtual void AppendAnonymousContentTo(nsBaseContentList& aElements,
76 : PRUint32 aFilter);
77 :
78 0 : virtual bool IsFrameOfType(PRUint32 aFlags) const
79 : {
80 : // Override nsBoxFrame.
81 0 : if (aFlags & (nsIFrame::eReplacedContainsBlock | nsIFrame::eReplaced))
82 0 : return false;
83 0 : return nsBoxFrame::IsFrameOfType(aFlags);
84 : }
85 :
86 : #ifdef DEBUG
87 : NS_IMETHOD GetFrameName(nsAString& aResult) const;
88 : #endif
89 : private:
90 : nsCOMPtr<nsIContent> mPopupgroupContent;
91 : nsCOMPtr<nsIContent> mTooltipContent;
92 : };
93 :
94 : //----------------------------------------------------------------------
95 :
96 : nsIFrame*
97 0 : NS_NewDocElementBoxFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
98 : {
99 0 : return new (aPresShell) nsDocElementBoxFrame (aPresShell, aContext);
100 : }
101 :
102 0 : NS_IMPL_FRAMEARENA_HELPERS(nsDocElementBoxFrame)
103 :
104 : void
105 0 : nsDocElementBoxFrame::DestroyFrom(nsIFrame* aDestructRoot)
106 : {
107 0 : nsContentUtils::DestroyAnonymousContent(&mPopupgroupContent);
108 0 : nsContentUtils::DestroyAnonymousContent(&mTooltipContent);
109 0 : nsBoxFrame::DestroyFrom(aDestructRoot);
110 0 : }
111 :
112 : nsresult
113 0 : nsDocElementBoxFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
114 : {
115 0 : nsIDocument* doc = mContent->GetDocument();
116 0 : if (!doc) {
117 : // The page is currently being torn down. Why bother.
118 0 : return NS_ERROR_FAILURE;
119 : }
120 0 : nsNodeInfoManager *nodeInfoManager = doc->NodeInfoManager();
121 :
122 : // create the top-secret popupgroup node. shhhhh!
123 0 : nsCOMPtr<nsINodeInfo> nodeInfo;
124 : nodeInfo = nodeInfoManager->GetNodeInfo(nsGkAtoms::popupgroup,
125 : nsnull, kNameSpaceID_XUL,
126 0 : nsIDOMNode::ELEMENT_NODE);
127 0 : NS_ENSURE_TRUE(nodeInfo, NS_ERROR_OUT_OF_MEMORY);
128 :
129 0 : nsresult rv = NS_NewXULElement(getter_AddRefs(mPopupgroupContent),
130 0 : nodeInfo.forget());
131 0 : NS_ENSURE_SUCCESS(rv, rv);
132 :
133 0 : if (!aElements.AppendElement(mPopupgroupContent))
134 0 : return NS_ERROR_OUT_OF_MEMORY;
135 :
136 : // create the top-secret default tooltip node. shhhhh!
137 : nodeInfo = nodeInfoManager->GetNodeInfo(nsGkAtoms::tooltip, nsnull,
138 : kNameSpaceID_XUL,
139 0 : nsIDOMNode::ELEMENT_NODE);
140 0 : NS_ENSURE_TRUE(nodeInfo, NS_ERROR_OUT_OF_MEMORY);
141 :
142 0 : rv = NS_NewXULElement(getter_AddRefs(mTooltipContent), nodeInfo.forget());
143 0 : NS_ENSURE_SUCCESS(rv, rv);
144 :
145 : mTooltipContent->SetAttr(nsnull, nsGkAtoms::_default,
146 0 : NS_LITERAL_STRING("true"), false);
147 :
148 0 : if (!aElements.AppendElement(mTooltipContent))
149 0 : return NS_ERROR_OUT_OF_MEMORY;
150 :
151 0 : return NS_OK;
152 : }
153 :
154 : void
155 0 : nsDocElementBoxFrame::AppendAnonymousContentTo(nsBaseContentList& aElements,
156 : PRUint32 aFilter)
157 : {
158 0 : aElements.MaybeAppendElement(mPopupgroupContent);
159 0 : aElements.MaybeAppendElement(mTooltipContent);
160 0 : }
161 :
162 0 : NS_QUERYFRAME_HEAD(nsDocElementBoxFrame)
163 0 : NS_QUERYFRAME_ENTRY(nsIAnonymousContentCreator)
164 0 : NS_QUERYFRAME_TAIL_INHERITING(nsBoxFrame)
165 :
166 : #ifdef DEBUG
167 : NS_IMETHODIMP
168 0 : nsDocElementBoxFrame::GetFrameName(nsAString& aResult) const
169 : {
170 0 : return MakeFrameName(NS_LITERAL_STRING("DocElementBox"), aResult);
171 : }
172 : #endif
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