gecko-dev/dom/xbl/nsXBLBinding.h

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* 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/. */
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#ifndef nsXBLBinding_h_
#define nsXBLBinding_h_
#include "nsXBLService.h"
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#include "nsCOMPtr.h"
#include "nsINodeList.h"
#include "nsIStyleRuleProcessor.h"
#include "nsClassHashtable.h"
#include "nsTArray.h"
#include "nsCycleCollectionParticipant.h"
#include "nsISupportsImpl.h"
#include "js/TypeDecls.h"
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class nsXBLPrototypeBinding;
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class nsIContent;
class nsIAtom;
class nsIDocument;
namespace mozilla {
namespace dom {
class ShadowRoot;
class XBLChildrenElement;
} // namespace dom
} // namespace mozilla
class nsAnonymousContentList;
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// *********************************************************************/
// The XBLBinding class
class nsXBLBinding final
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{
public:
explicit nsXBLBinding(nsXBLPrototypeBinding* aProtoBinding);
nsXBLBinding(mozilla::dom::ShadowRoot* aShadowRoot, nsXBLPrototypeBinding* aProtoBinding);
/**
* XBLBindings are refcounted. They are held onto in 3 ways:
* 1. The binding manager's binding table holds onto all bindings that are
* currently attached to a content node.
* 2. Bindings hold onto their base binding. This is important since
* the base binding itself may not be attached to anything.
* 3. The binding manager holds an additional reference to bindings
* which are queued to fire their constructors.
*/
NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(nsXBLBinding)
NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS(nsXBLBinding)
nsXBLPrototypeBinding* PrototypeBinding() const { return mPrototypeBinding; }
nsIContent* GetAnonymousContent() { return mContent.get(); }
nsXBLBinding* GetBindingWithContent();
nsXBLBinding* GetBaseBinding() const { return mNextBinding; }
void SetBaseBinding(nsXBLBinding *aBinding);
nsIContent* GetBoundElement() { return mBoundElement; }
void SetBoundElement(nsIContent *aElement);
/*
* Does a lookup for a method or attribute provided by one of the bindings'
* prototype implementation. If found, |desc| will be set up appropriately,
* and wrapped into cx->compartment.
*
* May only be called when XBL code is being run in a separate scope, because
* otherwise we don't have untainted data with which to do a proper lookup.
*/
bool LookupMember(JSContext* aCx, JS::Handle<jsid> aId,
JS::MutableHandle<JS::PropertyDescriptor> aDesc);
/*
* Determines whether the binding has a field with the given name.
*/
bool HasField(nsString& aName);
protected:
~nsXBLBinding();
/*
* Internal version. Requires that aCx is in appropriate xbl scope.
*/
bool LookupMemberInternal(JSContext* aCx, nsString& aName,
JS::Handle<jsid> aNameAsId,
JS::MutableHandle<JS::PropertyDescriptor> aDesc,
JS::Handle<JSObject*> aXBLScope);
public:
void MarkForDeath();
bool MarkedForDeath() const { return mMarkedForDeath; }
bool HasStyleSheets() const;
bool InheritsStyle() const;
bool ImplementsInterface(REFNSIID aIID) const;
void GenerateAnonymousContent();
void InstallAnonymousContent(nsIContent* aAnonParent, nsIContent* aElement,
bool aNativeAnon);
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static void UninstallAnonymousContent(nsIDocument* aDocument,
nsIContent* aAnonParent);
void InstallEventHandlers();
nsresult InstallImplementation();
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void ExecuteAttachedHandler();
void ExecuteDetachedHandler();
void UnhookEventHandlers();
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nsIAtom* GetBaseTag(int32_t* aNameSpaceID);
nsXBLBinding* RootBinding();
// Resolve all the fields for this binding and all ancestor bindings on the
// object |obj|. False return means a JS exception was set.
bool ResolveAllFields(JSContext *cx, JS::Handle<JSObject*> obj) const;
void AttributeChanged(nsIAtom* aAttribute, int32_t aNameSpaceID,
bool aRemoveFlag, bool aNotify);
void ChangeDocument(nsIDocument* aOldDocument, nsIDocument* aNewDocument);
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void WalkRules(nsIStyleRuleProcessor::EnumFunc aFunc, void* aData);
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static nsresult DoInitJSClass(JSContext *cx, JS::Handle<JSObject*> obj,
const nsAFlatString& aClassName,
nsXBLPrototypeBinding* aProtoBinding,
JS::MutableHandle<JSObject*> aClassObject,
bool* aNew);
bool AllowScripts();
mozilla::dom::XBLChildrenElement* FindInsertionPointFor(nsIContent* aChild);
bool HasFilteredInsertionPoints()
{
return !mInsertionPoints.IsEmpty();
}
mozilla::dom::XBLChildrenElement* GetDefaultInsertionPoint()
{
return mDefaultInsertionPoint;
}
// Removes all inserted node from <xbl:children> insertion points under us.
void ClearInsertionPoints();
// Returns a live node list that iterates over the anonymous nodes generated
// by this binding.
nsAnonymousContentList* GetAnonymousNodeList();
nsIURI* GetSourceDocURI();
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// MEMBER VARIABLES
protected:
bool mMarkedForDeath;
bool mUsingContentXBLScope;
bool mIsShadowRootBinding;
nsXBLPrototypeBinding* mPrototypeBinding; // Weak, but we're holding a ref to the docinfo
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nsCOMPtr<nsIContent> mContent; // Strong. Our anonymous content stays around with us.
Bug 1207245 - part 6 - rename nsRefPtr<T> to RefPtr<T>; r=ehsan; a=Tomcat The bulk of this commit was generated with a script, executed at the top level of a typical source code checkout. The only non-machine-generated part was modifying MFBT's moz.build to reflect the new naming. CLOSED TREE makes big refactorings like this a piece of cake. # The main substitution. find . -name '*.cpp' -o -name '*.cc' -o -name '*.h' -o -name '*.mm' -o -name '*.idl'| \ xargs perl -p -i -e ' s/nsRefPtr\.h/RefPtr\.h/g; # handle includes s/nsRefPtr ?</RefPtr</g; # handle declarations and variables ' # Handle a special friend declaration in gfx/layers/AtomicRefCountedWithFinalize.h. perl -p -i -e 's/::nsRefPtr;/::RefPtr;/' gfx/layers/AtomicRefCountedWithFinalize.h # Handle nsRefPtr.h itself, a couple places that define constructors # from nsRefPtr, and code generators specially. We do this here, rather # than indiscriminantly s/nsRefPtr/RefPtr/, because that would rename # things like nsRefPtrHashtable. perl -p -i -e 's/nsRefPtr/RefPtr/g' \ mfbt/nsRefPtr.h \ xpcom/glue/nsCOMPtr.h \ xpcom/base/OwningNonNull.h \ ipc/ipdl/ipdl/lower.py \ ipc/ipdl/ipdl/builtin.py \ dom/bindings/Codegen.py \ python/lldbutils/lldbutils/utils.py # In our indiscriminate substitution above, we renamed # nsRefPtrGetterAddRefs, the class behind getter_AddRefs. Fix that up. find . -name '*.cpp' -o -name '*.h' -o -name '*.idl' | \ xargs perl -p -i -e 's/nsRefPtrGetterAddRefs/RefPtrGetterAddRefs/g' if [ -d .git ]; then git mv mfbt/nsRefPtr.h mfbt/RefPtr.h else hg mv mfbt/nsRefPtr.h mfbt/RefPtr.h fi --HG-- rename : mfbt/nsRefPtr.h => mfbt/RefPtr.h
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RefPtr<nsXBLBinding> mNextBinding; // Strong. The derived binding owns the base class bindings.
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nsIContent* mBoundElement; // [WEAK] We have a reference, but we don't own it.
// The <xbl:children> elements that we found in our <xbl:content> when we
// processed this binding. The default insertion point has no includes
// attribute and all other insertion points must have at least one includes
// attribute. These points must be up-to-date with respect to their parent's
// children, even if their parent has another binding attached to it,
// preventing us from rendering their contents directly.
Bug 1207245 - part 6 - rename nsRefPtr<T> to RefPtr<T>; r=ehsan; a=Tomcat The bulk of this commit was generated with a script, executed at the top level of a typical source code checkout. The only non-machine-generated part was modifying MFBT's moz.build to reflect the new naming. CLOSED TREE makes big refactorings like this a piece of cake. # The main substitution. find . -name '*.cpp' -o -name '*.cc' -o -name '*.h' -o -name '*.mm' -o -name '*.idl'| \ xargs perl -p -i -e ' s/nsRefPtr\.h/RefPtr\.h/g; # handle includes s/nsRefPtr ?</RefPtr</g; # handle declarations and variables ' # Handle a special friend declaration in gfx/layers/AtomicRefCountedWithFinalize.h. perl -p -i -e 's/::nsRefPtr;/::RefPtr;/' gfx/layers/AtomicRefCountedWithFinalize.h # Handle nsRefPtr.h itself, a couple places that define constructors # from nsRefPtr, and code generators specially. We do this here, rather # than indiscriminantly s/nsRefPtr/RefPtr/, because that would rename # things like nsRefPtrHashtable. perl -p -i -e 's/nsRefPtr/RefPtr/g' \ mfbt/nsRefPtr.h \ xpcom/glue/nsCOMPtr.h \ xpcom/base/OwningNonNull.h \ ipc/ipdl/ipdl/lower.py \ ipc/ipdl/ipdl/builtin.py \ dom/bindings/Codegen.py \ python/lldbutils/lldbutils/utils.py # In our indiscriminate substitution above, we renamed # nsRefPtrGetterAddRefs, the class behind getter_AddRefs. Fix that up. find . -name '*.cpp' -o -name '*.h' -o -name '*.idl' | \ xargs perl -p -i -e 's/nsRefPtrGetterAddRefs/RefPtrGetterAddRefs/g' if [ -d .git ]; then git mv mfbt/nsRefPtr.h mfbt/RefPtr.h else hg mv mfbt/nsRefPtr.h mfbt/RefPtr.h fi --HG-- rename : mfbt/nsRefPtr.h => mfbt/RefPtr.h
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RefPtr<mozilla::dom::XBLChildrenElement> mDefaultInsertionPoint;
nsTArray<RefPtr<mozilla::dom::XBLChildrenElement> > mInsertionPoints;
RefPtr<nsAnonymousContentList> mAnonymousContentList;
mozilla::dom::XBLChildrenElement* FindInsertionPointForInternal(nsIContent* aChild);
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};
#endif // nsXBLBinding_h_