зеркало из https://github.com/mozilla/gecko-dev.git
new module
This commit is contained in:
buster%netscape.com
Родитель
23aef81b0b
Коммит
63d84c5b52
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@ -0,0 +1,124 @@
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS IS"
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* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
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* the License for the specific language governing rights and limitations
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* under the License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are Copyright (C) 1998
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* Netscape Communications Corporation. All Rights Reserved.
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*/
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#include "GenericElementCollection.h"
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#include "nsIDOMElement.h"
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#include "nsGenericHTMLElement.h"
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GenericElementCollection::GenericElementCollection(nsIContent *aParent,
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nsIAtom *aTag)
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: nsGenericDOMHTMLCollection()
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{
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mParent = aParent;
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mTag = aTag;
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}
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GenericElementCollection::~GenericElementCollection()
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{
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// we do NOT have a ref-counted reference to mParent, so do NOT release it!
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// this is to avoid circular references. The instantiator who provided mParent
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// is responsible for managing our reference for us.
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NS_IF_RELEASE(mTag);
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}
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// we re-count every call. A better implementation would be to set ourselves up as
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// an observer of contentAppended, contentInserted, and contentDeleted
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NS_IMETHODIMP
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GenericElementCollection::GetLength(PRUint32* aLength)
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{
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if (nsnull==aLength)
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return NS_ERROR_NULL_POINTER;
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*aLength=0;
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nsresult result = NS_OK;
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if (nsnull!=mParent)
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{
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nsIContent *child=nsnull;
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PRUint32 childIndex=0;
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mParent->ChildAt(childIndex, child);
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while (nsnull!=child)
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{
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nsIAtom *childTag;
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child->GetTag(childTag);
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if (mTag==childTag)
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{
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(*aLength)++;
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}
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NS_RELEASE(childTag);
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NS_RELEASE(child);
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childIndex++;
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mParent->ChildAt(childIndex, child);
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}
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}
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return result;
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}
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NS_IMETHODIMP
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GenericElementCollection::Item(PRUint32 aIndex, nsIDOMNode** aReturn)
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{
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*aReturn=nsnull;
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PRUint32 index = 0;
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nsresult rv = NS_OK;
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if (nsnull!=mParent)
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{
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nsIContent *child=nsnull;
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PRUint32 childIndex=0;
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mParent->ChildAt(childIndex, child);
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while (nsnull!=child)
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{
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nsIAtom *childTag;
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child->GetTag(childTag);
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if (mTag==childTag)
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{
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if (aIndex==index)
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{
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child->QueryInterface(kIDOMNodeIID, (void**)aReturn); // out-param addref
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NS_ASSERTION(nsnull!=aReturn, "content element must be an nsIDOMNode");
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NS_RELEASE(childTag);
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NS_RELEASE(child);
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break;
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}
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index++;
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}
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NS_RELEASE(childTag);
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NS_RELEASE(child);
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childIndex++;
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mParent->ChildAt(childIndex, child);
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}
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}
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return rv;
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}
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NS_IMETHODIMP
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GenericElementCollection::NamedItem(const nsString& aName, nsIDOMNode** aReturn)
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{
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nsresult rv = NS_OK;
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if (nsnull!=mParent)
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{
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}
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return rv;
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}
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NS_IMETHODIMP
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GenericElementCollection::ParentDestroyed()
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{
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// see comment in destructor, do NOT release mParent!
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mParent = nsnull;
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return NS_OK;
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}
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@ -0,0 +1,51 @@
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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||||||
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* Version 1.0 (the "License"); you may not use this file except in
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||||||
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* compliance with the License. You may obtain a copy of the License at
|
||||||
|
* http://www.mozilla.org/NPL/
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||||||
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*
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* Software distributed under the License is distributed on an "AS IS"
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* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
|
||||||
|
* the License for the specific language governing rights and limitations
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||||||
|
* under the License.
|
||||||
|
*
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||||||
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* The Original Code is Mozilla Communicator client code.
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||||||
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*
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||||||
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* The Initial Developer of the Original Code is Netscape Communications
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||||||
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* Corporation. Portions created by Netscape are Copyright (C) 1998
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* Netscape Communications Corporation. All Rights Reserved.
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*/
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#ifndef GenericElementCollection_h__
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#define GenericElementCollection_h__
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#include "nsGenericDOMHTMLCollection.h"
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class nsIContent;
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class nsIAtom;
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/**
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* This class provides a late-bound collection of elements that are
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* direct decendents of an element.
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* mParent is NOT ref-counted to avoid circular references
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*/
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class GenericElementCollection : public nsGenericDOMHTMLCollection
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{
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public:
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GenericElementCollection(nsIContent *aParent,
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nsIAtom *aTag);
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virtual ~GenericElementCollection();
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NS_IMETHOD GetLength(PRUint32* aLength);
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NS_IMETHOD Item(PRUint32 aIndex, nsIDOMNode** aReturn);
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NS_IMETHOD NamedItem(const nsString& aName, nsIDOMNode** aReturn);
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NS_IMETHOD ParentDestroyed();
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protected:
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nsIContent * mParent;
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nsIAtom * mTag;
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};
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#endif
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@ -0,0 +1,124 @@
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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||||||
|
*
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||||||
|
* The contents of this file are subject to the Netscape Public License
|
||||||
|
* Version 1.0 (the "License"); you may not use this file except in
|
||||||
|
* compliance with the License. You may obtain a copy of the License at
|
||||||
|
* http://www.mozilla.org/NPL/
|
||||||
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*
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||||||
|
* Software distributed under the License is distributed on an "AS IS"
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||||||
|
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
|
||||||
|
* the License for the specific language governing rights and limitations
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||||||
|
* under the License.
|
||||||
|
*
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||||||
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* The Original Code is Mozilla Communicator client code.
|
||||||
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*
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||||||
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* The Initial Developer of the Original Code is Netscape Communications
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||||||
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* Corporation. Portions created by Netscape are Copyright (C) 1998
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* Netscape Communications Corporation. All Rights Reserved.
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*/
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#include "GenericElementCollection.h"
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#include "nsIDOMElement.h"
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#include "nsGenericHTMLElement.h"
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GenericElementCollection::GenericElementCollection(nsIContent *aParent,
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nsIAtom *aTag)
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: nsGenericDOMHTMLCollection()
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{
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mParent = aParent;
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mTag = aTag;
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}
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||||||
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GenericElementCollection::~GenericElementCollection()
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{
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||||||
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// we do NOT have a ref-counted reference to mParent, so do NOT release it!
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||||||
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// this is to avoid circular references. The instantiator who provided mParent
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||||||
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// is responsible for managing our reference for us.
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||||||
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NS_IF_RELEASE(mTag);
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||||||
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}
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||||||
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||||||
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// we re-count every call. A better implementation would be to set ourselves up as
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// an observer of contentAppended, contentInserted, and contentDeleted
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||||||
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NS_IMETHODIMP
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GenericElementCollection::GetLength(PRUint32* aLength)
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{
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if (nsnull==aLength)
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return NS_ERROR_NULL_POINTER;
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*aLength=0;
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nsresult result = NS_OK;
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if (nsnull!=mParent)
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{
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nsIContent *child=nsnull;
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PRUint32 childIndex=0;
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mParent->ChildAt(childIndex, child);
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while (nsnull!=child)
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{
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nsIAtom *childTag;
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child->GetTag(childTag);
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if (mTag==childTag)
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{
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(*aLength)++;
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}
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NS_RELEASE(childTag);
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NS_RELEASE(child);
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childIndex++;
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mParent->ChildAt(childIndex, child);
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}
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}
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return result;
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}
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NS_IMETHODIMP
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GenericElementCollection::Item(PRUint32 aIndex, nsIDOMNode** aReturn)
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{
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*aReturn=nsnull;
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PRUint32 index = 0;
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nsresult rv = NS_OK;
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if (nsnull!=mParent)
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{
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nsIContent *child=nsnull;
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PRUint32 childIndex=0;
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mParent->ChildAt(childIndex, child);
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while (nsnull!=child)
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{
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nsIAtom *childTag;
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child->GetTag(childTag);
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if (mTag==childTag)
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{
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if (aIndex==index)
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{
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child->QueryInterface(kIDOMNodeIID, (void**)aReturn); // out-param addref
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NS_ASSERTION(nsnull!=aReturn, "content element must be an nsIDOMNode");
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NS_RELEASE(childTag);
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NS_RELEASE(child);
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break;
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}
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index++;
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}
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NS_RELEASE(childTag);
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NS_RELEASE(child);
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childIndex++;
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mParent->ChildAt(childIndex, child);
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}
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}
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return rv;
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}
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NS_IMETHODIMP
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GenericElementCollection::NamedItem(const nsString& aName, nsIDOMNode** aReturn)
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{
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nsresult rv = NS_OK;
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if (nsnull!=mParent)
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{
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}
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return rv;
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}
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NS_IMETHODIMP
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GenericElementCollection::ParentDestroyed()
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{
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// see comment in destructor, do NOT release mParent!
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mParent = nsnull;
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return NS_OK;
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}
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@ -0,0 +1,51 @@
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
||||||
|
*
|
||||||
|
* The contents of this file are subject to the Netscape Public License
|
||||||
|
* Version 1.0 (the "License"); you may not use this file except in
|
||||||
|
* compliance with the License. You may obtain a copy of the License at
|
||||||
|
* http://www.mozilla.org/NPL/
|
||||||
|
*
|
||||||
|
* Software distributed under the License is distributed on an "AS IS"
|
||||||
|
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
|
||||||
|
* the License for the specific language governing rights and limitations
|
||||||
|
* under the License.
|
||||||
|
*
|
||||||
|
* The Original Code is Mozilla Communicator client code.
|
||||||
|
*
|
||||||
|
* The Initial Developer of the Original Code is Netscape Communications
|
||||||
|
* Corporation. Portions created by Netscape are Copyright (C) 1998
|
||||||
|
* Netscape Communications Corporation. All Rights Reserved.
|
||||||
|
*/
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||||||
|
|
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#ifndef GenericElementCollection_h__
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#define GenericElementCollection_h__
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|
|
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#include "nsGenericDOMHTMLCollection.h"
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|
|
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class nsIContent;
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||||||
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class nsIAtom;
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||||||
|
|
||||||
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/**
|
||||||
|
* This class provides a late-bound collection of elements that are
|
||||||
|
* direct decendents of an element.
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||||||
|
* mParent is NOT ref-counted to avoid circular references
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||||||
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*/
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class GenericElementCollection : public nsGenericDOMHTMLCollection
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{
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public:
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GenericElementCollection(nsIContent *aParent,
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nsIAtom *aTag);
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virtual ~GenericElementCollection();
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|
|
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NS_IMETHOD GetLength(PRUint32* aLength);
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||||||
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NS_IMETHOD Item(PRUint32 aIndex, nsIDOMNode** aReturn);
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||||||
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NS_IMETHOD NamedItem(const nsString& aName, nsIDOMNode** aReturn);
|
||||||
|
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NS_IMETHOD ParentDestroyed();
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|
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protected:
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nsIContent * mParent;
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nsIAtom * mTag;
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||||||
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};
|
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#endif
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