Mozilla/mozilla/layout/html/content/src/nsHTMLButtonElement.cpp
rods%netscape.com 40a68b95fc Commented out the MACRO for for settting and getting the disabled attribute
I implemented them fully so I code set the "disabled" pseudo-class properly


git-svn-id: svn://10.0.0.236/trunk@18728 18797224-902f-48f8-a5cc-f745e15eee43
1999-01-27 04:13:44 +00:00

460 lines
14 KiB
C++

/* -*- 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.
*/
#include "nsIDOMHTMLButtonElement.h"
#include "nsIDOMNSHTMLButtonElement.h"
#include "nsIDOMHTMLFormElement.h"
#include "nsIScriptObjectOwner.h"
#include "nsIDOMEventReceiver.h"
#include "nsIHTMLContent.h"
#include "nsGenericHTMLElement.h"
#include "nsHTMLAtoms.h"
#include "nsHTMLIIDs.h"
#include "nsIStyleContext.h"
#include "nsStyleConsts.h"
#include "nsIPresContext.h"
#include "nsIFormControl.h"
#include "nsIForm.h"
#include "nsIURL.h"
#include "nsIEventStateManager.h"
#include "nsDOMEvent.h"
static NS_DEFINE_IID(kIDOMHTMLButtonElementIID, NS_IDOMHTMLBUTTONELEMENT_IID);
class nsHTMLButtonElement : public nsIDOMHTMLButtonElement,
public nsIScriptObjectOwner,
public nsIDOMEventReceiver,
public nsIHTMLContent,
public nsIFormControl
{
public:
nsHTMLButtonElement(nsIAtom* aTag);
~nsHTMLButtonElement();
// nsISupports
NS_DECL_ISUPPORTS
// nsIDOMNode
NS_IMPL_IDOMNODE_USING_GENERIC(mInner)
// nsIDOMElement
NS_IMPL_IDOMELEMENT_USING_GENERIC(mInner)
// nsIDOMHTMLElement
NS_IMPL_IDOMHTMLELEMENT_USING_GENERIC(mInner)
// nsIDOMHTMLButtonElement
NS_IMETHOD GetForm(nsIDOMHTMLFormElement** aForm);
NS_IMETHOD GetAccessKey(nsString& aAccessKey);
NS_IMETHOD SetAccessKey(const nsString& aAccessKey);
NS_IMETHOD GetDisabled(PRBool* aDisabled);
NS_IMETHOD SetDisabled(PRBool aDisabled);
NS_IMETHOD GetName(nsString& aName);
NS_IMETHOD SetName(const nsString& aName);
NS_IMETHOD GetTabIndex(PRInt32* aTabIndex);
NS_IMETHOD SetTabIndex(PRInt32 aTabIndex);
NS_IMETHOD GetType(nsString& aType);
NS_IMETHOD GetValue(nsString& aValue);
NS_IMETHOD SetValue(const nsString& aValue);
// nsIDOMHTMLButtonElement
NS_IMETHOD Blur();
NS_IMETHOD Focus();
// nsIScriptObjectOwner
NS_IMPL_ISCRIPTOBJECTOWNER_USING_GENERIC(mInner)
// nsIDOMEventReceiver
NS_IMPL_IDOMEVENTRECEIVER_USING_GENERIC(mInner)
// nsIContent
NS_IMPL_ICONTENT_USING_GENERIC(mInner)
// nsIHTMLContent
NS_IMPL_IHTMLCONTENT_USING_GENERIC(mInner)
// nsIFormControl
NS_IMETHOD SetForm(nsIDOMHTMLFormElement* aForm);
NS_IMETHOD GetType(PRInt32* aType);
NS_IMETHOD SetWidget(nsIWidget* aWidget) { return NS_OK; };
NS_IMETHOD Init() { return NS_OK; }
protected:
nsGenericHTMLContainerElement mInner;
nsIForm* mForm;
PRInt32 mType;
};
static NS_DEFINE_IID(kIDOMHTMLFormElementIID, NS_IDOMHTMLFORMELEMENT_IID);
static NS_DEFINE_IID(kIFormIID, NS_IFORM_IID);
static NS_DEFINE_IID(kIFormControlIID, NS_IFORMCONTROL_IID);
// Construction, destruction
nsresult
NS_NewHTMLButtonElement(nsIHTMLContent** aInstancePtrResult, nsIAtom* aTag)
{
NS_PRECONDITION(nsnull != aInstancePtrResult, "null ptr");
if (nsnull == aInstancePtrResult) {
return NS_ERROR_NULL_POINTER;
}
nsIHTMLContent* it = new nsHTMLButtonElement(aTag);
if (nsnull == it) {
return NS_ERROR_OUT_OF_MEMORY;
}
return it->QueryInterface(kIHTMLContentIID, (void**) aInstancePtrResult);
}
nsHTMLButtonElement::nsHTMLButtonElement(nsIAtom* aTag)
{
NS_INIT_REFCNT();
mInner.Init(this, aTag);
mForm = nsnull;
mType = NS_FORM_BUTTON_BUTTON; // default
}
nsHTMLButtonElement::~nsHTMLButtonElement()
{
if (nsnull != mForm) {
// prevent mForm from decrementing its ref count on us
mForm->RemoveElement(this, PR_FALSE);
NS_RELEASE(mForm);
}
}
// nsISupports
NS_IMETHODIMP_(nsrefcnt)
nsHTMLButtonElement::AddRef(void)
{
PRInt32 refCnt = mRefCnt; // debugging
return ++mRefCnt;
}
nsresult
nsHTMLButtonElement::QueryInterface(REFNSIID aIID, void** aInstancePtr)
{
NS_IMPL_HTML_CONTENT_QUERY_INTERFACE(aIID, aInstancePtr, this)
if (aIID.Equals(kIDOMHTMLButtonElementIID)) {
*aInstancePtr = (void*)(nsIDOMHTMLButtonElement*)this;
mRefCnt++;
return NS_OK;
}
else if (aIID.Equals(kIFormControlIID)) {
*aInstancePtr = (void*)(nsIFormControl*) this;
NS_ADDREF_THIS();
return NS_OK;
}
return NS_NOINTERFACE;
}
NS_IMETHODIMP_(nsrefcnt)
nsHTMLButtonElement::Release()
{
--mRefCnt;
if (mRefCnt <= 0) {
delete this;
return 0;
} else if ((1 == mRefCnt) && mForm) {
mRefCnt = 0;
delete this;
return 0;
} else {
return mRefCnt;
}
}
// nsIDOMHTMLButtonElement
nsresult
nsHTMLButtonElement::CloneNode(PRBool aDeep, nsIDOMNode** aReturn)
{
nsHTMLButtonElement* it = new nsHTMLButtonElement(mInner.mTag);
if (nsnull == it) {
return NS_ERROR_OUT_OF_MEMORY;
}
mInner.CopyInnerTo(this, &it->mInner, aDeep);
return it->QueryInterface(kIDOMNodeIID, (void**) aReturn);
}
NS_IMETHODIMP
nsHTMLButtonElement::GetForm(nsIDOMHTMLFormElement** aForm)
{
nsresult result = NS_OK;
*aForm = nsnull;
if (nsnull != mForm) {
nsIDOMHTMLFormElement* formElem = nsnull;
result = mForm->QueryInterface(kIDOMHTMLFormElementIID, (void**)&formElem);
if (NS_OK == result) {
*aForm = formElem;
}
}
return result;
}
NS_IMETHODIMP
nsHTMLButtonElement::GetType(nsString& aType)
{
aType.SetString("button");
return NS_OK;
}
NS_IMPL_STRING_ATTR(nsHTMLButtonElement, AccessKey, accesskey)
//NS_IMPL_BOOL_ATTR(nsHTMLButtonElement, Disabled, disabled)
NS_IMETHODIMP
nsHTMLButtonElement::GetDisabled(PRBool* aValue)
{
nsHTMLValue val;
nsresult rv = mInner.GetHTMLAttribute(nsHTMLAtoms::disabled, val);
*aValue = NS_CONTENT_ATTR_NOT_THERE != rv;
return NS_OK;
}
NS_IMETHODIMP
nsHTMLButtonElement::SetDisabled(PRBool aValue)
{
nsHTMLValue empty(eHTMLUnit_Empty);
if (aValue) {
nsresult status = mInner.SetHTMLAttribute(nsHTMLAtoms::disabled, empty, PR_TRUE);
mInner.SetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::kClass, "DISABLED", PR_TRUE);
return status;
}
else {
mInner.UnsetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::disabled, PR_TRUE);
mInner.SetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::kClass, "", PR_TRUE);
return NS_OK;
}
}
NS_IMPL_STRING_ATTR(nsHTMLButtonElement, Name, name)
NS_IMPL_INT_ATTR(nsHTMLButtonElement, TabIndex, tabindex)
NS_IMPL_STRING_ATTR(nsHTMLButtonElement, Value, value)
NS_IMETHODIMP
nsHTMLButtonElement::Blur()
{
// XXX write me
return NS_OK;
}
NS_IMETHODIMP
nsHTMLButtonElement::Focus()
{
// XXX write me
return NS_OK;
}
static nsGenericHTMLElement::EnumTable kButtonTypeTable[] = {
{ "button", NS_FORM_BUTTON_BUTTON },
{ "reset", NS_FORM_BUTTON_RESET },
{ "submit", NS_FORM_BUTTON_SUBMIT },
{ 0 }
};
NS_IMETHODIMP
nsHTMLButtonElement::StringToAttribute(nsIAtom* aAttribute,
const nsString& aValue,
nsHTMLValue& aResult)
{
if (aAttribute == nsHTMLAtoms::tabindex) {
nsGenericHTMLElement::ParseValue(aValue, 0, 32767, aResult,
eHTMLUnit_Integer);
return NS_CONTENT_ATTR_HAS_VALUE;
}
if (aAttribute == nsHTMLAtoms::type) {
nsGenericHTMLElement::EnumTable *table = kButtonTypeTable;
while (nsnull != table->tag) {
if (aValue.EqualsIgnoreCase(table->tag)) {
aResult.SetIntValue(table->value, eHTMLUnit_Enumerated);
mType = table->value;
return NS_CONTENT_ATTR_HAS_VALUE;
}
table++;
}
}
else if (aAttribute == nsHTMLAtoms::disabled) {
aResult.SetEmptyValue();
return NS_CONTENT_ATTR_HAS_VALUE;
}
return NS_CONTENT_ATTR_NOT_THERE;
}
NS_IMETHODIMP
nsHTMLButtonElement::AttributeToString(nsIAtom* aAttribute,
const nsHTMLValue& aValue,
nsString& aResult) const
{
if (aAttribute == nsHTMLAtoms::type) {
if (eHTMLUnit_Enumerated == aValue.GetUnit()) {
nsGenericHTMLElement::EnumValueToString(aValue, kButtonTypeTable, aResult);
return NS_CONTENT_ATTR_HAS_VALUE;
}
}
return mInner.AttributeToString(aAttribute, aValue, aResult);
}
static void
MapAttributesInto(nsIHTMLAttributes* aAttributes,
nsIStyleContext* aContext,
nsIPresContext* aPresContext)
{
nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aContext, aPresContext);
}
NS_IMETHODIMP
nsHTMLButtonElement::GetAttributeMappingFunction(nsMapAttributesFunc& aMapFunc) const
{
aMapFunc = &MapAttributesInto;
return NS_OK;
}
NS_IMETHODIMP
nsHTMLButtonElement::HandleDOMEvent(nsIPresContext& aPresContext,
nsEvent* aEvent,
nsIDOMEvent** aDOMEvent,
PRUint32 aFlags,
nsEventStatus& aEventStatus)
{
// Try script event handlers first
nsresult ret = mInner.HandleDOMEvent(aPresContext, aEvent, aDOMEvent,
aFlags, aEventStatus);
if ((NS_OK == ret) && (nsEventStatus_eIgnore == aEventStatus)) {
switch (aEvent->message) {
case NS_MOUSE_LEFT_BUTTON_DOWN:
{
nsIEventStateManager *stateManager;
if (NS_OK == aPresContext.GetEventStateManager(&stateManager)) {
//stateManager->SetActiveLink(this);
NS_RELEASE(stateManager);
}
aEventStatus = nsEventStatus_eConsumeNoDefault;
}
break;
case NS_MOUSE_LEFT_BUTTON_UP:
{
nsIEventStateManager *stateManager;
nsIContent *activeLink = nsnull;
if (NS_OK == aPresContext.GetEventStateManager(&stateManager)) {
//stateManager->GetActiveLink(&activeLink);
NS_RELEASE(stateManager);
}
if (activeLink == this) {
if (nsEventStatus_eConsumeNoDefault != aEventStatus) {
nsAutoString href, target, disabled;
nsIURL* baseURL = nsnull;
GetBaseURL(baseURL);
GetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::href, href);
GetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::target, target);
GetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::disabled, disabled);
if (target.Length() == 0) {
GetBaseTarget(target);
}
mInner.TriggerLink(aPresContext, eLinkVerb_Replace, baseURL, href, target, PR_TRUE);
NS_IF_RELEASE(baseURL);
aEventStatus = nsEventStatus_eConsumeNoDefault;
}
}
}
break;
case NS_MOUSE_RIGHT_BUTTON_DOWN:
// XXX Bring up a contextual menu provided by the application
break;
case NS_MOUSE_ENTER:
//mouse enter doesn't work yet. Use move until then.
{
nsAutoString href, target;
nsIURL* baseURL = nsnull;
GetBaseURL(baseURL);
GetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::href, href);
GetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::target, target);
if (target.Length() == 0) {
GetBaseTarget(target);
}
mInner.TriggerLink(aPresContext, eLinkVerb_Replace, baseURL, href, target, PR_FALSE);
NS_IF_RELEASE(baseURL);
aEventStatus = nsEventStatus_eConsumeDoDefault;
}
break;
// XXX this doesn't seem to do anything yet
case NS_MOUSE_EXIT:
{
nsAutoString empty;
mInner.TriggerLink(aPresContext, eLinkVerb_Replace, nsnull, empty, empty, PR_FALSE);
aEventStatus = nsEventStatus_eConsumeDoDefault;
}
break;
default:
break;
}
}
return ret;
}
NS_IMETHODIMP
nsHTMLButtonElement::GetType(PRInt32* aType)
{
if (aType) {
*aType = mType;
return NS_OK;
} else {
return NS_FORM_NOTOK;
}
}
// An important assumption is that if aForm is null, the previous mForm will not be released
// This allows nsHTMLFormElement to deal with circular references.
NS_IMETHODIMP
nsHTMLButtonElement::SetForm(nsIDOMHTMLFormElement* aForm)
{
nsresult result = NS_OK;
if (nsnull == aForm) {
mForm = nsnull;
return NS_OK;
} else {
NS_IF_RELEASE(mForm);
nsIFormControl* formControl = nsnull;
result = QueryInterface(kIFormControlIID, (void**)&formControl);
if ((NS_OK == result) && formControl) {
result = aForm->QueryInterface(kIFormIID, (void**)&mForm); // keep the ref
if ((NS_OK == result) && mForm) {
mForm->AddElement(formControl);
}
NS_RELEASE(formControl);
}
}
return result;
}
NS_IMETHODIMP
nsHTMLButtonElement::GetStyleHintForAttributeChange(
const nsIAtom* aAttribute,
PRInt32 *aHint) const
{
nsGenericHTMLElement::SetStyleHintForCommonAttributes(this, aAttribute, aHint);
return NS_OK;
}