436 lines
13 KiB
C++
436 lines
13 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 "nsIDOMHTMLAnchorElement.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 "nsINameSpaceManager.h"
|
|
#include "nsIURL.h"
|
|
#include "nsIFocusableContent.h"
|
|
|
|
#include "nsIEventStateManager.h"
|
|
#include "nsDOMEvent.h"
|
|
#include "nsNeckoUtil.h"
|
|
|
|
// XXX suppress
|
|
|
|
// XXX either suppress is handled in the event code below OR we need a
|
|
// custom frame
|
|
|
|
static NS_DEFINE_IID(kIDOMHTMLAnchorElementIID, NS_IDOMHTMLANCHORELEMENT_IID);
|
|
static NS_DEFINE_IID(kIFocusableContentIID, NS_IFOCUSABLECONTENT_IID);
|
|
|
|
class nsHTMLAnchorElement : public nsIDOMHTMLAnchorElement,
|
|
public nsIScriptObjectOwner,
|
|
public nsIDOMEventReceiver,
|
|
public nsIHTMLContent,
|
|
public nsIFocusableContent
|
|
{
|
|
public:
|
|
nsHTMLAnchorElement(nsIAtom* aTag);
|
|
virtual ~nsHTMLAnchorElement();
|
|
|
|
// 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)
|
|
|
|
// nsIDOMHTMLAnchorElement
|
|
NS_IMETHOD GetAccessKey(nsString& aAccessKey);
|
|
NS_IMETHOD SetAccessKey(const nsString& aAccessKey);
|
|
NS_IMETHOD GetCharset(nsString& aCharset);
|
|
NS_IMETHOD SetCharset(const nsString& aCharset);
|
|
NS_IMETHOD GetCoords(nsString& aCoords);
|
|
NS_IMETHOD SetCoords(const nsString& aCoords);
|
|
NS_IMETHOD GetHref(nsString& aHref);
|
|
NS_IMETHOD SetHref(const nsString& aHref);
|
|
NS_IMETHOD GetHreflang(nsString& aHreflang);
|
|
NS_IMETHOD SetHreflang(const nsString& aHreflang);
|
|
NS_IMETHOD GetName(nsString& aName);
|
|
NS_IMETHOD SetName(const nsString& aName);
|
|
NS_IMETHOD GetRel(nsString& aRel);
|
|
NS_IMETHOD SetRel(const nsString& aRel);
|
|
NS_IMETHOD GetRev(nsString& aRev);
|
|
NS_IMETHOD SetRev(const nsString& aRev);
|
|
NS_IMETHOD GetShape(nsString& aShape);
|
|
NS_IMETHOD SetShape(const nsString& aShape);
|
|
NS_IMETHOD GetTabIndex(PRInt32* aTabIndex);
|
|
NS_IMETHOD SetTabIndex(PRInt32 aTabIndex);
|
|
NS_IMETHOD GetTarget(nsString& aTarget);
|
|
NS_IMETHOD SetTarget(const nsString& aTarget);
|
|
NS_IMETHOD GetType(nsString& aType);
|
|
NS_IMETHOD SetType(const nsString& aType);
|
|
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)
|
|
|
|
// nsIFocusableContent
|
|
NS_IMETHOD SetFocus(nsIPresContext* aPresContext);
|
|
NS_IMETHOD RemoveFocus(nsIPresContext* aPresContext);
|
|
|
|
protected:
|
|
nsGenericHTMLContainerElement mInner;
|
|
};
|
|
|
|
nsresult
|
|
NS_NewHTMLAnchorElement(nsIHTMLContent** aInstancePtrResult, nsIAtom* aTag)
|
|
{
|
|
NS_PRECONDITION(nsnull != aInstancePtrResult, "null ptr");
|
|
if (nsnull == aInstancePtrResult) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
nsIHTMLContent* it = new nsHTMLAnchorElement(aTag);
|
|
if (nsnull == it) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
return it->QueryInterface(kIHTMLContentIID, (void**) aInstancePtrResult);
|
|
}
|
|
|
|
|
|
nsHTMLAnchorElement::nsHTMLAnchorElement(nsIAtom* aTag)
|
|
{
|
|
NS_INIT_REFCNT();
|
|
mInner.Init(this, aTag);
|
|
}
|
|
|
|
nsHTMLAnchorElement::~nsHTMLAnchorElement()
|
|
{
|
|
}
|
|
|
|
NS_IMPL_ADDREF(nsHTMLAnchorElement)
|
|
|
|
NS_IMPL_RELEASE(nsHTMLAnchorElement)
|
|
|
|
nsresult
|
|
nsHTMLAnchorElement::QueryInterface(REFNSIID aIID, void** aInstancePtr)
|
|
{
|
|
NS_IMPL_HTML_CONTENT_QUERY_INTERFACE(aIID, aInstancePtr, this)
|
|
if (aIID.Equals(kIDOMHTMLAnchorElementIID)) {
|
|
nsIDOMHTMLAnchorElement* tmp = this;
|
|
*aInstancePtr = (void*) tmp;
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
else if (aIID.Equals(kIFocusableContentIID)) {
|
|
*aInstancePtr = (void*)(nsIFocusableContent*) this;
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
return NS_NOINTERFACE;
|
|
}
|
|
|
|
nsresult
|
|
nsHTMLAnchorElement::CloneNode(PRBool aDeep, nsIDOMNode** aReturn)
|
|
{
|
|
nsHTMLAnchorElement* it = new nsHTMLAnchorElement(mInner.mTag);
|
|
if (nsnull == it) {
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
}
|
|
mInner.CopyInnerTo(this, &it->mInner, aDeep);
|
|
return it->QueryInterface(kIDOMNodeIID, (void**) aReturn);
|
|
}
|
|
|
|
NS_IMPL_STRING_ATTR(nsHTMLAnchorElement, AccessKey, accesskey)
|
|
NS_IMPL_STRING_ATTR(nsHTMLAnchorElement, Charset, charset)
|
|
NS_IMPL_STRING_ATTR(nsHTMLAnchorElement, Coords, coords)
|
|
NS_IMPL_STRING_ATTR(nsHTMLAnchorElement, Hreflang, hreflang)
|
|
NS_IMPL_STRING_ATTR(nsHTMLAnchorElement, Name, name)
|
|
NS_IMPL_STRING_ATTR(nsHTMLAnchorElement, Rel, rel)
|
|
NS_IMPL_STRING_ATTR(nsHTMLAnchorElement, Rev, rev)
|
|
NS_IMPL_STRING_ATTR(nsHTMLAnchorElement, Shape, shape)
|
|
NS_IMPL_INT_ATTR(nsHTMLAnchorElement, TabIndex, tabindex)
|
|
NS_IMPL_STRING_ATTR(nsHTMLAnchorElement, Target, target)
|
|
NS_IMPL_STRING_ATTR(nsHTMLAnchorElement, Type, type)
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLAnchorElement::Blur()
|
|
{
|
|
// XXX write me
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLAnchorElement::Focus()
|
|
{
|
|
// XXX write me
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLAnchorElement::SetFocus(nsIPresContext* aPresContext)
|
|
{
|
|
|
|
// don't make the link grab the focus if there is no link handler
|
|
nsILinkHandler* handler;
|
|
nsresult rv = aPresContext->GetLinkHandler(&handler);
|
|
if (NS_SUCCEEDED(rv) && (nsnull != handler)) {
|
|
nsIEventStateManager *stateManager;
|
|
if (NS_OK == aPresContext->GetEventStateManager(&stateManager)) {
|
|
stateManager->SetContentState(this, NS_EVENT_STATE_FOCUS);
|
|
NS_RELEASE(stateManager);
|
|
}
|
|
NS_RELEASE(handler);
|
|
}
|
|
|
|
// XXX write me
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLAnchorElement::RemoveFocus(nsIPresContext* aPresContext)
|
|
{
|
|
// XXX write me
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLAnchorElement::StringToAttribute(nsIAtom* aAttribute,
|
|
const nsString& aValue,
|
|
nsHTMLValue& aResult)
|
|
{
|
|
if (aAttribute == nsHTMLAtoms::tabindex) {
|
|
if (nsGenericHTMLElement::ParseValue(aValue, 0, 32767, aResult,
|
|
eHTMLUnit_Integer)) {
|
|
return NS_CONTENT_ATTR_HAS_VALUE;
|
|
}
|
|
}
|
|
else if (aAttribute == nsHTMLAtoms::suppress) {
|
|
if (aValue.EqualsIgnoreCase("true")) {
|
|
aResult.SetEmptyValue(); // XXX? shouldn't just leave "true"
|
|
return NS_CONTENT_ATTR_HAS_VALUE;
|
|
}
|
|
}
|
|
return NS_CONTENT_ATTR_NOT_THERE;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLAnchorElement::AttributeToString(nsIAtom* aAttribute,
|
|
const nsHTMLValue& aValue,
|
|
nsString& aResult) const
|
|
{
|
|
return mInner.AttributeToString(aAttribute, aValue, aResult);
|
|
}
|
|
|
|
static void
|
|
MapAttributesInto(const nsIHTMLMappedAttributes* aAttributes,
|
|
nsIStyleContext* aContext,
|
|
nsIPresContext* aPresContext)
|
|
{
|
|
nsGenericHTMLElement::MapCommonAttributesInto(aAttributes, aContext, aPresContext);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLAnchorElement::GetMappedAttributeImpact(const nsIAtom* aAttribute,
|
|
PRInt32& aHint) const
|
|
{
|
|
if (! nsGenericHTMLElement::GetCommonMappedAttributesImpact(aAttribute, aHint)) {
|
|
aHint = NS_STYLE_HINT_CONTENT;
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLAnchorElement::GetAttributeMappingFunctions(nsMapAttributesFunc& aFontMapFunc,
|
|
nsMapAttributesFunc& aMapFunc) const
|
|
{
|
|
aFontMapFunc = nsnull;
|
|
aMapFunc = &MapAttributesInto;
|
|
return NS_OK;
|
|
}
|
|
|
|
// XXX support suppress in here
|
|
NS_IMETHODIMP
|
|
nsHTMLAnchorElement::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)) {
|
|
// If this anchor element has an HREF then it is sensitive to
|
|
// mouse events (otherwise ignore them).
|
|
nsAutoString href;
|
|
nsresult result = GetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::href, href);
|
|
if (NS_CONTENT_ATTR_HAS_VALUE == result) {
|
|
switch (aEvent->message) {
|
|
case NS_MOUSE_LEFT_BUTTON_DOWN:
|
|
{
|
|
// don't make the link grab the focus if there is no link handler
|
|
nsILinkHandler* handler;
|
|
nsresult rv = aPresContext.GetLinkHandler(&handler);
|
|
if (NS_SUCCEEDED(rv) && (nsnull != handler)) {
|
|
nsIEventStateManager *stateManager;
|
|
if (NS_OK == aPresContext.GetEventStateManager(&stateManager)) {
|
|
stateManager->SetContentState(this, NS_EVENT_STATE_ACTIVE | NS_EVENT_STATE_FOCUS);
|
|
NS_RELEASE(stateManager);
|
|
}
|
|
NS_RELEASE(handler);
|
|
aEventStatus = nsEventStatus_eConsumeNoDefault;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case NS_MOUSE_LEFT_CLICK:
|
|
case NS_KEY_PRESS:
|
|
{
|
|
if (nsEventStatus_eConsumeNoDefault != aEventStatus) {
|
|
|
|
nsKeyEvent * keyEvent;
|
|
if (aEvent->eventStructType == NS_KEY_EVENT) {
|
|
//Handle key commands from keys with char representation here, not on KeyDown
|
|
keyEvent = (nsKeyEvent *)aEvent;
|
|
}
|
|
|
|
//Click or return key
|
|
if (aEvent->message == NS_MOUSE_LEFT_CLICK || keyEvent->keyCode == NS_VK_RETURN) {
|
|
nsAutoString target;
|
|
nsIURI* baseURL = nsnull;
|
|
GetBaseURL(baseURL);
|
|
GetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::target, target);
|
|
if (target.Length() == 0) {
|
|
GetBaseTarget(target);
|
|
}
|
|
mInner.TriggerLink(aPresContext, eLinkVerb_Replace,
|
|
baseURL, href, target, PR_TRUE);
|
|
NS_IF_RELEASE(baseURL);
|
|
aEventStatus = nsEventStatus_eConsumeDoDefault;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case NS_MOUSE_RIGHT_BUTTON_DOWN:
|
|
// XXX Bring up a contextual menu provided by the application
|
|
break;
|
|
|
|
case NS_MOUSE_ENTER:
|
|
{
|
|
nsIEventStateManager *stateManager;
|
|
if (NS_OK == aPresContext.GetEventStateManager(&stateManager)) {
|
|
stateManager->SetContentState(this, NS_EVENT_STATE_HOVER);
|
|
NS_RELEASE(stateManager);
|
|
}
|
|
|
|
nsAutoString target;
|
|
nsIURI* baseURL = nsnull;
|
|
GetBaseURL(baseURL);
|
|
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_eConsumeNoDefault;
|
|
}
|
|
break;
|
|
|
|
case NS_MOUSE_EXIT:
|
|
{
|
|
nsIEventStateManager *stateManager;
|
|
if (NS_OK == aPresContext.GetEventStateManager(&stateManager)) {
|
|
stateManager->SetContentState(nsnull, NS_EVENT_STATE_HOVER);
|
|
NS_RELEASE(stateManager);
|
|
}
|
|
|
|
nsAutoString empty;
|
|
mInner.TriggerLink(aPresContext, eLinkVerb_Replace, nsnull, empty, empty, PR_FALSE);
|
|
aEventStatus = nsEventStatus_eConsumeNoDefault;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLAnchorElement::GetHref(nsString& aValue)
|
|
{
|
|
// Resolve url to an absolute url
|
|
nsresult rv = NS_OK;
|
|
nsAutoString relURLSpec;
|
|
nsIURI* baseURL = nsnull;
|
|
|
|
// Get base URL.
|
|
mInner.GetBaseURL(baseURL);
|
|
|
|
// Get href= attribute (relative URL).
|
|
mInner.GetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::href, relURLSpec);
|
|
|
|
// If there is no href=, then use base target.
|
|
if (relURLSpec.Length() == 0) {
|
|
mInner.GetBaseTarget(relURLSpec);
|
|
}
|
|
|
|
if (nsnull != baseURL) {
|
|
// Get absolute URL.
|
|
rv = NS_MakeAbsoluteURI(relURLSpec, baseURL, aValue);
|
|
}
|
|
else {
|
|
// Absolute URL is same as relative URL.
|
|
aValue = relURLSpec;
|
|
}
|
|
NS_IF_RELEASE(baseURL);
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLAnchorElement::SetHref(const nsString& aValue)
|
|
{
|
|
return mInner.SetAttribute(kNameSpaceID_HTML, nsHTMLAtoms::href, aValue, PR_TRUE);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsHTMLAnchorElement::SizeOf(nsISizeOfHandler* aSizer, PRUint32* aResult) const
|
|
{
|
|
return mInner.SizeOf(aSizer, aResult, sizeof(*this));
|
|
}
|