713 lines
21 KiB
C++
713 lines
21 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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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 1.1 (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" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* 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
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsIDOMHTMLButtonElement.h"
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#include "nsIDOMNSHTMLButtonElement.h"
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#include "nsIDOMHTMLFormElement.h"
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#include "nsIDOMEventReceiver.h"
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#include "nsIHTMLContent.h"
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#include "nsGenericHTMLElement.h"
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#include "nsHTMLAtoms.h"
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#include "nsIStyleContext.h"
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#include "nsStyleConsts.h"
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#include "nsIPresContext.h"
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#include "nsIFormControl.h"
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#include "nsIForm.h"
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#include "nsIFormSubmission.h"
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#include "nsIURL.h"
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#include "nsIFrame.h"
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#include "nsIFormControlFrame.h"
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#include "nsIEventStateManager.h"
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#include "nsIDOMEvent.h"
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#include "nsIDOMNSEvent.h"
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#include "nsISizeOfHandler.h"
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#include "nsIDocument.h"
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#include "nsGUIEvent.h"
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#include "nsUnicharUtils.h"
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class nsHTMLButtonElement : public nsGenericHTMLContainerFormElement,
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public nsIDOMHTMLButtonElement,
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public nsIDOMNSHTMLButtonElement
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{
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public:
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nsHTMLButtonElement();
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virtual ~nsHTMLButtonElement();
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// nsISupports
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NS_DECL_ISUPPORTS_INHERITED
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// nsIDOMNode
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NS_FORWARD_NSIDOMNODE_NO_CLONENODE(nsGenericHTMLContainerFormElement::)
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// nsIDOMElement
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NS_FORWARD_NSIDOMELEMENT(nsGenericHTMLContainerFormElement::)
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// nsIDOMHTMLElement
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NS_FORWARD_NSIDOMHTMLELEMENT(nsGenericHTMLContainerElement::)
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// nsIDOMHTMLButtonElement
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NS_DECL_NSIDOMHTMLBUTTONELEMENT
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// nsIDOMNSHTMLButtonElement
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NS_DECL_NSIDOMNSHTMLBUTTONELEMENT
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// overrided nsIFormControl method
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NS_IMETHOD_(PRInt32) GetType() { return mType; }
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NS_IMETHOD Reset();
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NS_IMETHOD SubmitNamesValues(nsIFormSubmission* aFormSubmission,
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nsIContent* aSubmitElement);
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// nsIContent overrides...
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NS_IMETHOD GetAttribute(PRInt32 aNameSpaceID, nsIAtom* aName,
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nsAString& aResult) const;
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NS_IMETHOD SetAttribute(PRInt32 aNameSpaceID, nsIAtom* aName,
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const nsAString& aValue, PRBool aNotify);
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NS_IMETHOD SetFocus(nsIPresContext* aPresContext);
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NS_IMETHOD RemoveFocus(nsIPresContext* aPresContext);
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NS_IMETHOD StringToAttribute(nsIAtom* aAttribute,
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const nsAString& aValue,
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nsHTMLValue& aResult);
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NS_IMETHOD AttributeToString(nsIAtom* aAttribute,
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const nsHTMLValue& aValue,
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nsAString& aResult) const;
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NS_IMETHOD HandleDOMEvent(nsIPresContext* aPresContext,
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nsEvent* aEvent,
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nsIDOMEvent** aDOMEvent,
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PRUint32 aFlags,
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nsEventStatus* aEventStatus);
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#ifdef DEBUG
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NS_IMETHOD SizeOf(nsISizeOfHandler* aSizer, PRUint32* aResult) const;
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#endif
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protected:
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PRInt8 mType;
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PRPackedBool mHandlingClick;
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private:
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// The analogue of defaultValue in the DOM for input and textarea
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nsresult SetDefaultValue(const nsAString& aDefaultValue);
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nsresult GetDefaultValue(nsAString& aDefaultValue);
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};
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// Construction, destruction
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nsresult
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NS_NewHTMLButtonElement(nsIHTMLContent** aInstancePtrResult,
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nsINodeInfo *aNodeInfo)
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{
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NS_ENSURE_ARG_POINTER(aInstancePtrResult);
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nsHTMLButtonElement* it = new nsHTMLButtonElement();
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if (!it) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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nsresult rv = NS_STATIC_CAST(nsGenericElement *, it)->Init(aNodeInfo);
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if (NS_FAILED(rv)) {
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delete it;
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return rv;
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}
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*aInstancePtrResult = NS_STATIC_CAST(nsIHTMLContent *, it);
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NS_ADDREF(*aInstancePtrResult);
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return NS_OK;
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}
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nsHTMLButtonElement::nsHTMLButtonElement()
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{
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mType = NS_FORM_BUTTON_SUBMIT; // default
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mHandlingClick = PR_FALSE;
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}
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nsHTMLButtonElement::~nsHTMLButtonElement()
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{
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}
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// nsISupports
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NS_IMPL_ADDREF_INHERITED(nsHTMLButtonElement, nsGenericElement);
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NS_IMPL_RELEASE_INHERITED(nsHTMLButtonElement, nsGenericElement);
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// QueryInterface implementation for nsHTMLButtonElement
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NS_HTML_CONTENT_INTERFACE_MAP_BEGIN(nsHTMLButtonElement,
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nsGenericHTMLContainerFormElement)
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NS_INTERFACE_MAP_ENTRY(nsIDOMHTMLButtonElement)
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NS_INTERFACE_MAP_ENTRY(nsIDOMNSHTMLButtonElement)
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NS_INTERFACE_MAP_ENTRY_CONTENT_CLASSINFO(HTMLButtonElement)
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NS_HTML_CONTENT_INTERFACE_MAP_END
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NS_IMETHODIMP
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nsHTMLButtonElement::GetAttribute(PRInt32 aNameSpaceID, nsIAtom* aName,
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nsAString& aResult) const
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{
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if (aName == nsHTMLAtoms::disabled) {
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nsresult rv = nsGenericHTMLContainerFormElement::GetAttr(kNameSpaceID_None, nsHTMLAtoms::disabled, aResult);
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if (rv == NS_CONTENT_ATTR_NOT_THERE) {
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aResult.Assign(NS_LITERAL_STRING("false"));
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} else {
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aResult.Assign(NS_LITERAL_STRING("true"));
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}
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return rv;
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}
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return nsGenericHTMLContainerFormElement::GetAttr(aNameSpaceID, aName,
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aResult);
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}
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NS_IMETHODIMP
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nsHTMLButtonElement::SetAttribute(PRInt32 aNameSpaceID, nsIAtom* aName,
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const nsAString& aValue,
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PRBool aNotify)
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{
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nsAutoString value(aValue);
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if (aName == nsHTMLAtoms::disabled &&
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value.Equals(NS_LITERAL_STRING("false"), nsCaseInsensitiveStringComparator())) {
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return UnsetAttr(aNameSpaceID, aName, aNotify);
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}
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return nsGenericHTMLContainerFormElement::SetAttr(aNameSpaceID, aName,
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aValue, aNotify);
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}
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// nsIDOMHTMLButtonElement
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nsresult
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nsHTMLButtonElement::CloneNode(PRBool aDeep, nsIDOMNode** aReturn)
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{
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NS_ENSURE_ARG_POINTER(aReturn);
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*aReturn = nsnull;
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nsHTMLButtonElement* it = new nsHTMLButtonElement();
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if (!it) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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nsCOMPtr<nsIDOMNode> kungFuDeathGrip(it);
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nsresult rv = NS_STATIC_CAST(nsGenericElement *, it)->Init(mNodeInfo);
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if (NS_FAILED(rv))
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return rv;
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CopyInnerTo(this, it, aDeep);
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*aReturn = NS_STATIC_CAST(nsIDOMNode *, it);
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NS_ADDREF(*aReturn);
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return NS_OK;
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}
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// nsIDOMHTMLButtonElement
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NS_IMETHODIMP
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nsHTMLButtonElement::GetForm(nsIDOMHTMLFormElement** aForm)
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{
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return nsGenericHTMLContainerFormElement::GetForm(aForm);
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}
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NS_IMETHODIMP
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nsHTMLButtonElement::GetType(nsAString& aType)
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{
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return AttributeToString(nsHTMLAtoms::type,
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nsHTMLValue(mType, eHTMLUnit_Enumerated),
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aType);
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}
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NS_IMPL_STRING_ATTR(nsHTMLButtonElement, AccessKey, accesskey)
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NS_IMPL_BOOL_ATTR(nsHTMLButtonElement, Disabled, disabled)
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NS_IMPL_STRING_ATTR(nsHTMLButtonElement, Name, name)
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NS_IMPL_INT_ATTR(nsHTMLButtonElement, TabIndex, tabindex)
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NS_IMPL_STRING_ATTR(nsHTMLButtonElement, Value, value)
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NS_IMETHODIMP
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nsHTMLButtonElement::Blur()
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{
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return SetElementFocus(PR_FALSE);
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}
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NS_IMETHODIMP
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nsHTMLButtonElement::Focus()
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{
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return SetElementFocus(PR_TRUE);
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}
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NS_IMETHODIMP
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nsHTMLButtonElement::Click()
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{
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if (mHandlingClick)
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return NS_OK;
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mHandlingClick = PR_TRUE;
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nsCOMPtr<nsIDocument> doc;
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GetDocument(*getter_AddRefs(doc));
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if (doc) {
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PRInt32 numShells = doc->GetNumberOfShells();
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nsCOMPtr<nsIPresContext> context;
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for (PRInt32 count=0; count < numShells; count++) {
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nsCOMPtr<nsIPresShell> shell;
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doc->GetShellAt(count, getter_AddRefs(shell));
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if (shell) {
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shell->GetPresContext(getter_AddRefs(context));
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if (context) {
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nsEventStatus status = nsEventStatus_eIgnore;
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nsMouseEvent event;
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event.eventStructType = NS_MOUSE_EVENT;
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event.message = NS_MOUSE_LEFT_CLICK;
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event.isShift = PR_FALSE;
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event.isControl = PR_FALSE;
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event.isAlt = PR_FALSE;
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event.isMeta = PR_FALSE;
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event.clickCount = 0;
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event.widget = nsnull;
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HandleDOMEvent(context, &event, nsnull,
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NS_EVENT_FLAG_INIT, &status);
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}
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}
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}
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}
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mHandlingClick = PR_FALSE;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLButtonElement::SetFocus(nsIPresContext* aPresContext)
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{
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NS_ENSURE_ARG_POINTER(aPresContext);
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// first see if we are disabled or not. If disabled then do nothing.
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nsAutoString disabled;
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if (NS_CONTENT_ATTR_HAS_VALUE == GetAttribute(kNameSpaceID_None,
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nsHTMLAtoms::disabled,
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disabled)) {
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return NS_OK;
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}
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nsCOMPtr<nsIEventStateManager> esm;
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if (NS_OK == aPresContext->GetEventStateManager(getter_AddRefs(esm))) {
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esm->SetContentState(this, NS_EVENT_STATE_FOCUS);
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}
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nsIFormControlFrame* formControlFrame = GetFormControlFrame(PR_FALSE);
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if (formControlFrame) {
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formControlFrame->SetFocus(PR_TRUE, PR_TRUE);
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formControlFrame->ScrollIntoView(aPresContext);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsHTMLButtonElement::RemoveFocus(nsIPresContext* aPresContext)
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{
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NS_ENSURE_ARG_POINTER(aPresContext);
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// If we are disabled, we probably shouldn't have focus in the
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// first place, so allow it to be removed.
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nsresult rv = NS_OK;
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nsIFormControlFrame* formControlFrame = GetFormControlFrame(PR_FALSE);
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if (formControlFrame) {
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formControlFrame->SetFocus(PR_FALSE, PR_FALSE);
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}
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nsCOMPtr<nsIEventStateManager> esm;
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if (NS_OK == aPresContext->GetEventStateManager(getter_AddRefs(esm))) {
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nsCOMPtr<nsIDocument> doc;
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GetDocument(*getter_AddRefs(doc));
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if (!doc)
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return NS_ERROR_NULL_POINTER;
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nsCOMPtr<nsIContent> rootContent;
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doc->GetRootContent(getter_AddRefs(rootContent));
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rv = esm->SetContentState(rootContent, NS_EVENT_STATE_FOCUS);
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}
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return rv;
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}
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static nsGenericHTMLElement::EnumTable kButtonTypeTable[] = {
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{ "button", NS_FORM_BUTTON_BUTTON },
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{ "reset", NS_FORM_BUTTON_RESET },
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{ "submit", NS_FORM_BUTTON_SUBMIT },
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{ 0 }
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};
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NS_IMETHODIMP
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nsHTMLButtonElement::StringToAttribute(nsIAtom* aAttribute,
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const nsAString& aValue,
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nsHTMLValue& aResult)
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{
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if (aAttribute == nsHTMLAtoms::tabindex) {
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if (ParseValue(aValue, 0, 32767, aResult, eHTMLUnit_Integer)) {
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return NS_CONTENT_ATTR_HAS_VALUE;
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}
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}
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else if (aAttribute == nsHTMLAtoms::type) {
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nsGenericHTMLElement::EnumTable *table = kButtonTypeTable;
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nsAutoString val(aValue);
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while (nsnull != table->tag) {
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if (val.EqualsIgnoreCase(table->tag)) {
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aResult.SetIntValue(table->value, eHTMLUnit_Enumerated);
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mType = table->value;
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return NS_CONTENT_ATTR_HAS_VALUE;
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}
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table++;
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}
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}
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else if (aAttribute == nsHTMLAtoms::disabled) {
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aResult.SetEmptyValue();
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return NS_CONTENT_ATTR_HAS_VALUE;
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}
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return NS_CONTENT_ATTR_NOT_THERE;
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}
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NS_IMETHODIMP
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nsHTMLButtonElement::AttributeToString(nsIAtom* aAttribute,
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const nsHTMLValue& aValue,
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nsAString& aResult) const
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{
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if (aAttribute == nsHTMLAtoms::type) {
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if (eHTMLUnit_Enumerated == aValue.GetUnit()) {
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EnumValueToString(aValue, kButtonTypeTable, aResult);
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return NS_CONTENT_ATTR_HAS_VALUE;
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}
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}
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return nsGenericHTMLContainerFormElement::AttributeToString(aAttribute,
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aValue, aResult);
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}
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NS_IMETHODIMP
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nsHTMLButtonElement::HandleDOMEvent(nsIPresContext* aPresContext,
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nsEvent* aEvent,
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nsIDOMEvent** aDOMEvent,
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PRUint32 aFlags,
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nsEventStatus* aEventStatus)
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{
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NS_ENSURE_ARG(aPresContext);
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NS_ENSURE_ARG_POINTER(aEventStatus);
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// Do not process any DOM events if the element is disabled
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PRBool bDisabled;
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nsresult rv = GetDisabled(&bDisabled);
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if (NS_FAILED(rv) || bDisabled) {
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return rv;
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}
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nsIFormControlFrame* formControlFrame = GetFormControlFrame(PR_FALSE);
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if (formControlFrame) {
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nsIFrame* formFrame = nsnull;
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CallQueryInterface(formControlFrame, &formFrame);
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if (formFrame) {
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const nsStyleUserInterface* uiStyle;
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formFrame->GetStyleData(eStyleStruct_UserInterface,
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(const nsStyleStruct *&)uiStyle);
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if (uiStyle->mUserInput == NS_STYLE_USER_INPUT_NONE ||
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uiStyle->mUserInput == NS_STYLE_USER_INPUT_DISABLED)
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return NS_OK;
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}
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}
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PRBool bInSubmitClick = mType == NS_FORM_BUTTON_SUBMIT &&
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!(aFlags & NS_EVENT_FLAG_CAPTURE) &&
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!(aFlags & NS_EVENT_FLAG_SYSTEM_EVENT) &&
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aEvent->message == NS_MOUSE_LEFT_CLICK &&
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mForm;
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if (bInSubmitClick) {
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// tell the form that we are about to enter a click handler.
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// that means that if there are scripted submissions, the
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// latest one will be deferred until after the exit point of the handler.
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mForm->OnSubmitClickBegin();
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}
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// Try script event handlers first
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nsresult ret;
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ret = nsGenericHTMLContainerFormElement::HandleDOMEvent(aPresContext,
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aEvent, aDOMEvent,
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aFlags,
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aEventStatus);
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if (bInSubmitClick) {
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// tell the form that we are about to exit a click handler
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// so the form knows not to defer subsequent submissions
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// the pending ones that were created during the handler
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// will be flushed or forgoten.
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mForm->OnSubmitClickEnd();
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}
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if (NS_SUCCEEDED(ret) &&
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!(aFlags & NS_EVENT_FLAG_CAPTURE) && !(aFlags & NS_EVENT_FLAG_SYSTEM_EVENT)) {
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if (nsEventStatus_eIgnore == *aEventStatus) {
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switch (aEvent->message) {
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case NS_KEY_PRESS:
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case NS_KEY_UP:
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{
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// For backwards compat, trigger buttons with space or enter
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// (bug 25300)
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nsKeyEvent * keyEvent = (nsKeyEvent *)aEvent;
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if ((keyEvent->keyCode == NS_VK_RETURN && NS_KEY_PRESS == aEvent->message) ||
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keyEvent->keyCode == NS_VK_SPACE && NS_KEY_UP == aEvent->message) {
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nsEventStatus status = nsEventStatus_eIgnore;
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nsMouseEvent event;
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event.eventStructType = NS_MOUSE_EVENT;
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event.message = NS_MOUSE_LEFT_CLICK;
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event.isShift = PR_FALSE;
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event.isControl = PR_FALSE;
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event.isAlt = PR_FALSE;
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event.isMeta = PR_FALSE;
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event.clickCount = 0;
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event.widget = nsnull;
|
|
rv = HandleDOMEvent(aPresContext, &event, nsnull,
|
|
NS_EVENT_FLAG_INIT, &status);
|
|
}
|
|
}
|
|
break;// NS_KEY_PRESS
|
|
|
|
case NS_MOUSE_LEFT_CLICK:
|
|
{
|
|
if (mForm) {
|
|
if (mType == NS_FORM_BUTTON_SUBMIT) {
|
|
// tell the form to forget a possible pending submission.
|
|
// the reason is that the script returned true (the event was
|
|
// ignored) so if there is a stored submission, it will miss
|
|
// the name/value of the submitting element, thus we need
|
|
// to forget it and the form element will build a new one
|
|
mForm->ForgetPendingSubmission();
|
|
}
|
|
|
|
if (mType == NS_FORM_BUTTON_SUBMIT || mType == NS_FORM_BUTTON_RESET) {
|
|
nsFormEvent event;
|
|
event.eventStructType = NS_FORM_EVENT;
|
|
event.message = (mType == NS_FORM_BUTTON_RESET)
|
|
? NS_FORM_RESET : NS_FORM_SUBMIT;
|
|
event.originator = this;
|
|
nsEventStatus status = nsEventStatus_eIgnore;
|
|
|
|
nsCOMPtr<nsIPresShell> presShell;
|
|
aPresContext->GetShell(getter_AddRefs(presShell));
|
|
// If |nsIPresShell::Destroy| has been called due to
|
|
// handling the event (base class HandleDOMEvent, above),
|
|
// the pres context will return a null pres shell. See
|
|
// bug 125624.
|
|
if (presShell) {
|
|
nsCOMPtr<nsIContent> form(do_QueryInterface(mForm));
|
|
presShell->HandleDOMEventWithTarget(form, &event, &status);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;// NS_MOUSE_LEFT_CLICK
|
|
|
|
case NS_MOUSE_LEFT_BUTTON_DOWN:
|
|
{
|
|
nsIEventStateManager *stateManager;
|
|
if (NS_OK == aPresContext->GetEventStateManager(&stateManager)) {
|
|
stateManager->SetContentState(this, NS_EVENT_STATE_ACTIVE |
|
|
NS_EVENT_STATE_FOCUS);
|
|
NS_RELEASE(stateManager);
|
|
}
|
|
*aEventStatus = nsEventStatus_eConsumeNoDefault;
|
|
}
|
|
break;
|
|
|
|
// cancel all of these events for buttons
|
|
case NS_MOUSE_MIDDLE_BUTTON_DOWN:
|
|
case NS_MOUSE_MIDDLE_BUTTON_UP:
|
|
case NS_MOUSE_MIDDLE_DOUBLECLICK:
|
|
case NS_MOUSE_RIGHT_DOUBLECLICK:
|
|
case NS_MOUSE_RIGHT_BUTTON_DOWN:
|
|
case NS_MOUSE_RIGHT_BUTTON_UP:
|
|
{
|
|
nsCOMPtr<nsIDOMNSEvent> nsevent;
|
|
|
|
if (aDOMEvent) {
|
|
nsevent = do_QueryInterface(*aDOMEvent);
|
|
}
|
|
|
|
if (nsevent) {
|
|
nsevent->PreventBubble();
|
|
} else {
|
|
ret = NS_ERROR_FAILURE;
|
|
}
|
|
}
|
|
|
|
break;
|
|
|
|
case NS_MOUSE_ENTER_SYNTH:
|
|
{
|
|
nsIEventStateManager *stateManager;
|
|
if (NS_OK == aPresContext->GetEventStateManager(&stateManager)) {
|
|
stateManager->SetContentState(this, NS_EVENT_STATE_HOVER);
|
|
NS_RELEASE(stateManager);
|
|
}
|
|
*aEventStatus = nsEventStatus_eConsumeNoDefault;
|
|
}
|
|
break;
|
|
|
|
// XXX this doesn't seem to do anything yet
|
|
case NS_MOUSE_EXIT_SYNTH:
|
|
{
|
|
nsIEventStateManager *stateManager;
|
|
if (NS_OK == aPresContext->GetEventStateManager(&stateManager)) {
|
|
stateManager->SetContentState(nsnull, NS_EVENT_STATE_HOVER);
|
|
NS_RELEASE(stateManager);
|
|
}
|
|
*aEventStatus = nsEventStatus_eConsumeNoDefault;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
} else {
|
|
switch (aEvent->message) {
|
|
case NS_MOUSE_LEFT_CLICK:
|
|
if (mForm && mType == NS_FORM_BUTTON_SUBMIT) {
|
|
// tell the form to flush a possible pending submission.
|
|
// the reason is that the script returned false (the event was
|
|
// not ignored) so if there is a stored submission, it needs to
|
|
// be submitted immediatelly.
|
|
mForm->FlushPendingSubmission();
|
|
}
|
|
break;// NS_MOUSE_LEFT_CLICK
|
|
} //switch
|
|
} //if
|
|
} //if
|
|
|
|
return ret;
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
NS_IMETHODIMP
|
|
nsHTMLButtonElement::SizeOf(nsISizeOfHandler* aSizer, PRUint32* aResult) const
|
|
{
|
|
*aResult = sizeof(*this) + BaseSizeOf(aSizer);
|
|
|
|
return NS_OK;
|
|
}
|
|
#endif
|
|
|
|
nsresult
|
|
nsHTMLButtonElement::GetDefaultValue(nsAString& aDefaultValue)
|
|
{
|
|
return GetAttr(kNameSpaceID_None, nsHTMLAtoms::value, aDefaultValue);
|
|
}
|
|
|
|
nsresult
|
|
nsHTMLButtonElement::SetDefaultValue(const nsAString& aDefaultValue)
|
|
{
|
|
return SetAttr(kNameSpaceID_None, nsHTMLAtoms::value, aDefaultValue, PR_TRUE);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLButtonElement::Reset()
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLButtonElement::SubmitNamesValues(nsIFormSubmission* aFormSubmission,
|
|
nsIContent* aSubmitElement)
|
|
{
|
|
nsresult rv = NS_OK;
|
|
|
|
//
|
|
// We only submit if we were the button pressed
|
|
//
|
|
if (aSubmitElement != this) {
|
|
return NS_OK;
|
|
}
|
|
|
|
//
|
|
// Disabled elements don't submit
|
|
//
|
|
PRBool disabled;
|
|
rv = GetDisabled(&disabled);
|
|
if (NS_FAILED(rv) || disabled) {
|
|
return rv;
|
|
}
|
|
|
|
//
|
|
// Get the name (if no name, no submit)
|
|
//
|
|
nsAutoString name;
|
|
rv = GetAttr(kNameSpaceID_None, nsHTMLAtoms::name, name);
|
|
if (NS_FAILED(rv) || rv == NS_CONTENT_ATTR_NOT_THERE) {
|
|
return rv;
|
|
}
|
|
|
|
//
|
|
// Get the value
|
|
//
|
|
nsAutoString value;
|
|
rv = GetValue(value);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
|
|
//
|
|
// Submit
|
|
//
|
|
rv = aFormSubmission->AddNameValuePair(this, name, value);
|
|
|
|
return rv;
|
|
}
|