gecko-dev/layout/style/nsCSSRules.cpp

1055 строки
26 KiB
C++
Исходник Обычный вид История

1999-06-10 09:32:38 +04:00
/* -*- 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 1.1 (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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*
* 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.
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*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1999 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
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*/
#include "nsICSSCharsetRule.h"
#include "nsICSSImportRule.h"
#include "nsICSSMediaRule.h"
#include "nsICSSNameSpaceRule.h"
#include "nsString.h"
#include "nsIAtom.h"
#include "nsISupportsArray.h"
#include "nsIURL.h"
#include "nsCSSRule.h"
#include "nsLayoutAtoms.h"
#include "nsICSSStyleSheet.h"
#include "nsCOMPtr.h"
#include "nsIStyleSet.h"
#include "nsISizeOfHandler.h"
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static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
static NS_DEFINE_IID(kIStyleRuleIID, NS_ISTYLE_RULE_IID);
static NS_DEFINE_IID(kICSSRuleIID, NS_ICSS_RULE_IID);
static NS_DEFINE_IID(kICSSCharsetRuleIID, NS_ICSS_CHARSET_RULE_IID);
static NS_DEFINE_IID(kICSSImportRuleIID, NS_ICSS_IMPORT_RULE_IID);
static NS_DEFINE_IID(kICSSMediaRuleIID, NS_ICSS_MEDIA_RULE_IID);
static NS_DEFINE_IID(kICSSNameSpaceRuleIID, NS_ICSS_NAMESPACE_RULE_IID);
#define DECL_STYLE_RULE_INHERIT \
NS_IMETHOD GetStyleSheet(nsIStyleSheet*& aSheet) const; \
NS_IMETHOD SetStyleSheet(nsICSSStyleSheet* aSheet); \
NS_IMETHOD GetStrength(PRInt32& aStrength) const; \
NS_IMETHOD MapFontStyleInto(nsIMutableStyleContext* aContext, nsIPresContext* aPresContext); \
NS_IMETHOD MapStyleInto(nsIMutableStyleContext* aContext, nsIPresContext* aPresContext); \
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#define IMPL_STYLE_RULE_INHERIT(_class, super) \
NS_IMETHODIMP _class::GetStyleSheet(nsIStyleSheet*& aSheet) const { return super::GetStyleSheet(aSheet); } \
NS_IMETHODIMP _class::SetStyleSheet(nsICSSStyleSheet* aSheet) { return super::SetStyleSheet(aSheet); } \
NS_IMETHODIMP _class::GetStrength(PRInt32& aStrength) const { return super::GetStrength(aStrength); } \
NS_IMETHODIMP _class::MapFontStyleInto(nsIMutableStyleContext* aContext, nsIPresContext* aPresContext) { return NS_OK; } \
NS_IMETHODIMP _class::MapStyleInto(nsIMutableStyleContext* aContext, nsIPresContext* aPresContext) { return NS_OK; }
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#define IMPL_STYLE_RULE_INHERIT2(_class, super) \
NS_IMETHODIMP _class::GetStyleSheet(nsIStyleSheet*& aSheet) const { return super::GetStyleSheet(aSheet); } \
NS_IMETHODIMP _class::GetStrength(PRInt32& aStrength) const { return super::GetStrength(aStrength); } \
NS_IMETHODIMP _class::MapFontStyleInto(nsIMutableStyleContext* aContext, nsIPresContext* aPresContext) { return NS_OK; } \
NS_IMETHODIMP _class::MapStyleInto(nsIMutableStyleContext* aContext, nsIPresContext* aPresContext) { return NS_OK; }
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// -------------------------------------------
// nsICSSCharsetRule
//
class CSSCharsetRuleImpl : public nsCSSRule,
public nsICSSCharsetRule
{
public:
CSSCharsetRuleImpl(void);
CSSCharsetRuleImpl(const CSSCharsetRuleImpl& aCopy);
virtual ~CSSCharsetRuleImpl(void);
NS_DECL_ISUPPORTS_INHERITED
NS_IMETHOD Init(const nsString& aEncoding);
DECL_STYLE_RULE_INHERIT
// nsIStyleRule methods
NS_IMETHOD List(FILE* out = stdout, PRInt32 aIndent = 0) const;
virtual void SizeOf(nsISizeOfHandler *aSizeOfHandler, PRUint32 &aSize);
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// nsICSSRule methods
NS_IMETHOD GetType(PRInt32& aType) const;
NS_IMETHOD Clone(nsICSSRule*& aClone) const;
// nsICSSCharsetRule methods
NS_IMETHOD GetEncoding(nsString& aEncoding) const;
protected:
nsString mEncoding;
};
CSSCharsetRuleImpl::CSSCharsetRuleImpl(void)
: nsCSSRule(),
mEncoding()
{
}
CSSCharsetRuleImpl::CSSCharsetRuleImpl(const CSSCharsetRuleImpl& aCopy)
: nsCSSRule(aCopy),
mEncoding(aCopy.mEncoding)
{
}
CSSCharsetRuleImpl::~CSSCharsetRuleImpl(void)
{
}
NS_IMPL_ADDREF_INHERITED(CSSCharsetRuleImpl, nsCSSRule);
NS_IMPL_RELEASE_INHERITED(CSSCharsetRuleImpl, nsCSSRule);
nsresult
CSSCharsetRuleImpl::QueryInterface(const nsIID& aIID,
void** aInstancePtrResult)
{
NS_PRECONDITION(nsnull != aInstancePtrResult, "null pointer");
if (nsnull == aInstancePtrResult) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(kICSSCharsetRuleIID)) {
*aInstancePtrResult = (void*) ((nsICSSCharsetRule*)this);
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kICSSRuleIID)) {
*aInstancePtrResult = (void*) ((nsICSSRule*)this);
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kIStyleRuleIID)) {
*aInstancePtrResult = (void*) ((nsIStyleRule*)this);
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kISupportsIID)) {
nsICSSCharsetRule *tmp = this;
nsISupports *tmp2 = tmp;
*aInstancePtrResult = (void*) tmp2;
NS_ADDREF_THIS();
return NS_OK;
}
return NS_NOINTERFACE;
}
NS_IMETHODIMP
CSSCharsetRuleImpl::Init(const nsString& aEncoding)
{
mEncoding = aEncoding;
return NS_OK;
}
IMPL_STYLE_RULE_INHERIT(CSSCharsetRuleImpl, nsCSSRule);
NS_IMETHODIMP
CSSCharsetRuleImpl::List(FILE* out, PRInt32 aIndent) const
{
// Indent
for (PRInt32 indent = aIndent; --indent >= 0; ) fputs(" ", out);
fputs("@charset \"", out);
fputs(mEncoding, out);
fputs("\"\n", out);
return NS_OK;
}
/******************************************************************************
* SizeOf method:
*
* Self (reported as CSSCharSetRuleImpl's size):
* 1) sizeof(*this) + the size of the mEncoding string
*
* Contained / Aggregated data (not reported as CSSCharsetRuleImpl's size):
* none
*
* Children / siblings / parents:
* none
*
******************************************************************************/
void CSSCharsetRuleImpl::SizeOf(nsISizeOfHandler *aSizeOfHandler, PRUint32 &aSize)
{
NS_ASSERTION(aSizeOfHandler != nsnull, "SizeOf handler cannot be null");
// first get the unique items collection
UNIQUE_STYLE_ITEMS(uniqueItems);
if(! uniqueItems->AddItem((void*)this)){
return;
}
PRUint32 localSize=0;
// create a tag for this instance
nsCOMPtr<nsIAtom> tag;
tag = getter_AddRefs(NS_NewAtom("CSSCharsetRuleImpl"));
// get the size of an empty instance and add to the sizeof handler
aSize = sizeof(*this);
// add the string for encoding value
mEncoding.SizeOf(aSizeOfHandler, &localSize);
aSize += localSize;
aSize -= sizeof(mEncoding); // counted in sizeof(*this) and nsString->SizeOf()
aSizeOfHandler->AddSize(tag,aSize);
}
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NS_IMETHODIMP
CSSCharsetRuleImpl::GetType(PRInt32& aType) const
{
aType = nsICSSRule::CHARSET_RULE;
return NS_OK;
}
NS_IMETHODIMP
CSSCharsetRuleImpl::Clone(nsICSSRule*& aClone) const
{
CSSCharsetRuleImpl* clone = new CSSCharsetRuleImpl(*this);
if (clone) {
return clone->QueryInterface(kICSSRuleIID, (void **)&aClone);
}
aClone = nsnull;
return NS_ERROR_OUT_OF_MEMORY;
}
NS_IMETHODIMP
CSSCharsetRuleImpl::GetEncoding(nsString& aEncoding) const
{
aEncoding = mEncoding;
return NS_OK;
}
NS_HTML nsresult
NS_NewCSSCharsetRule(nsICSSCharsetRule** aInstancePtrResult, const nsString& aEncoding)
{
if (! aInstancePtrResult) {
return NS_ERROR_NULL_POINTER;
}
CSSCharsetRuleImpl* it = new CSSCharsetRuleImpl();
if (! it) {
return NS_ERROR_OUT_OF_MEMORY;
}
it->Init(aEncoding);
return it->QueryInterface(kICSSCharsetRuleIID, (void **) aInstancePtrResult);
}
// -------------------------------------------
// nsICSSImportRule
//
class CSSImportRuleImpl : public nsCSSRule,
public nsICSSImportRule
{
public:
CSSImportRuleImpl(void);
CSSImportRuleImpl(const CSSImportRuleImpl& aCopy);
virtual ~CSSImportRuleImpl(void);
NS_DECL_ISUPPORTS_INHERITED
DECL_STYLE_RULE_INHERIT
// nsIStyleRule methods
NS_IMETHOD List(FILE* out = stdout, PRInt32 aIndent = 0) const;
virtual void SizeOf(nsISizeOfHandler *aSizeOfHandler, PRUint32 &aSize);
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// nsICSSRule methods
NS_IMETHOD GetType(PRInt32& aType) const;
NS_IMETHOD Clone(nsICSSRule*& aClone) const;
// nsICSSImportRule methods
NS_IMETHOD SetURLSpec(const nsString& aURLSpec);
NS_IMETHOD GetURLSpec(nsString& aURLSpec) const;
NS_IMETHOD SetMedia(const nsString& aMedia);
NS_IMETHOD GetMedia(nsString& aMedia) const;
protected:
nsString mURLSpec;
nsString mMedia;
};
CSSImportRuleImpl::CSSImportRuleImpl(void)
: nsCSSRule(),
mURLSpec(),
mMedia()
{
}
CSSImportRuleImpl::CSSImportRuleImpl(const CSSImportRuleImpl& aCopy)
: nsCSSRule(aCopy),
mURLSpec(aCopy.mURLSpec),
mMedia(aCopy.mMedia)
{
}
CSSImportRuleImpl::~CSSImportRuleImpl(void)
{
}
NS_IMPL_ADDREF_INHERITED(CSSImportRuleImpl, nsCSSRule);
NS_IMPL_RELEASE_INHERITED(CSSImportRuleImpl, nsCSSRule);
nsresult
CSSImportRuleImpl::QueryInterface(const nsIID& aIID,
void** aInstancePtrResult)
{
NS_PRECONDITION(nsnull != aInstancePtrResult, "null pointer");
if (nsnull == aInstancePtrResult) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(kICSSImportRuleIID)) {
*aInstancePtrResult = (void*) ((nsICSSImportRule*)this);
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kICSSRuleIID)) {
*aInstancePtrResult = (void*) ((nsICSSRule*)this);
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kIStyleRuleIID)) {
*aInstancePtrResult = (void*) ((nsIStyleRule*)this);
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kISupportsIID)) {
nsICSSImportRule *tmp = this;
nsISupports *tmp2 = tmp;
*aInstancePtrResult = (void*) tmp2;
NS_ADDREF_THIS();
return NS_OK;
}
return NS_NOINTERFACE;
}
IMPL_STYLE_RULE_INHERIT(CSSImportRuleImpl, nsCSSRule);
NS_IMETHODIMP
CSSImportRuleImpl::List(FILE* out, PRInt32 aIndent) const
{
// Indent
for (PRInt32 indent = aIndent; --indent >= 0; ) fputs(" ", out);
fputs("@import \"", out);
fputs(mURLSpec, out);
fputs("\" ", out);
fputs(mMedia, out);
fputs("\n", out);
return NS_OK;
}
/******************************************************************************
* SizeOf method:
*
* Self (reported as CSSImportRuleImpl's size):
* 1) sizeof(*this) + the size of the mURLSpec string +
* the size of the mMedia string
*
* Contained / Aggregated data (not reported as CSSImportRuleImpl's size):
* none
*
* Children / siblings / parents:
* none
*
******************************************************************************/
void CSSImportRuleImpl::SizeOf(nsISizeOfHandler *aSizeOfHandler, PRUint32 &aSize)
{
NS_ASSERTION(aSizeOfHandler != nsnull, "SizeOf handler cannot be null");
// first get the unique items collection
UNIQUE_STYLE_ITEMS(uniqueItems);
if(! uniqueItems->AddItem((void*)this)){
return;
}
PRUint32 localSize=0;
// create a tag for this instance
nsCOMPtr<nsIAtom> tag;
tag = getter_AddRefs(NS_NewAtom("CSSImportRuleImpl"));
// get the size of an empty instance and add to the sizeof handler
aSize = sizeof(*this);
// add the strings for the URLSpec and the Media
mURLSpec.SizeOf(aSizeOfHandler, &localSize);
aSize += localSize;
aSize -= sizeof(mURLSpec); // counted in sizeof(*this) and nsString->SizeOf()
mMedia.SizeOf(aSizeOfHandler, &localSize);
aSize += localSize;
aSize -= sizeof(mMedia); // counted in sizeof(*this) and nsString->SizeOf()
aSizeOfHandler->AddSize(tag,aSize);
}
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NS_IMETHODIMP
CSSImportRuleImpl::GetType(PRInt32& aType) const
{
aType = nsICSSRule::IMPORT_RULE;
return NS_OK;
}
NS_IMETHODIMP
CSSImportRuleImpl::Clone(nsICSSRule*& aClone) const
{
CSSImportRuleImpl* clone = new CSSImportRuleImpl(*this);
if (clone) {
return clone->QueryInterface(kICSSRuleIID, (void **)&aClone);
}
aClone = nsnull;
return NS_ERROR_OUT_OF_MEMORY;
}
NS_IMETHODIMP
CSSImportRuleImpl::SetURLSpec(const nsString& aURLSpec)
{
mURLSpec = aURLSpec;
return NS_OK;
}
NS_IMETHODIMP
CSSImportRuleImpl::GetURLSpec(nsString& aURLSpec) const
{
aURLSpec = mURLSpec;
return NS_OK;
}
NS_IMETHODIMP
CSSImportRuleImpl::SetMedia(const nsString& aMedia)
{
mMedia = aMedia;
return NS_OK;
}
NS_IMETHODIMP
CSSImportRuleImpl::GetMedia(nsString& aMedia) const
{
aMedia = mMedia;
return NS_OK;
}
NS_HTML nsresult
NS_NewCSSImportRule(nsICSSImportRule** aInstancePtrResult,
const nsString& aURLSpec,
const nsString& aMedia)
{
if (! aInstancePtrResult) {
return NS_ERROR_NULL_POINTER;
}
CSSImportRuleImpl* it = new CSSImportRuleImpl();
if (! it) {
return NS_ERROR_OUT_OF_MEMORY;
}
it->SetURLSpec(aURLSpec);
it->SetMedia(aMedia);
return it->QueryInterface(kICSSImportRuleIID, (void **) aInstancePtrResult);
}
// -------------------------------------------
// nsICSSMediaRule
//
class CSSMediaRuleImpl : public nsCSSRule,
public nsICSSMediaRule
{
public:
CSSMediaRuleImpl(void);
CSSMediaRuleImpl(const CSSMediaRuleImpl& aCopy);
virtual ~CSSMediaRuleImpl(void);
NS_DECL_ISUPPORTS_INHERITED
DECL_STYLE_RULE_INHERIT
// nsIStyleRule methods
NS_IMETHOD List(FILE* out = stdout, PRInt32 aIndent = 0) const;
virtual void SizeOf(nsISizeOfHandler *aSizeOfHandler, PRUint32 &aSize);
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// nsICSSRule methods
NS_IMETHOD GetType(PRInt32& aType) const;
NS_IMETHOD Clone(nsICSSRule*& aClone) const;
// nsICSSMediaRule methods
NS_IMETHOD SetMedia(nsISupportsArray* aMedia);
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NS_IMETHOD UseForMedium(nsIAtom* aMedium) const;
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NS_IMETHOD AppendStyleRule(nsICSSRule* aRule);
NS_IMETHOD StyleRuleCount(PRInt32& aCount) const;
NS_IMETHOD GetStyleRuleAt(PRInt32 aIndex, nsICSSRule*& aRule) const;
NS_IMETHOD EnumerateRulesForwards(nsISupportsArrayEnumFunc aFunc, void * aData) const;
protected:
nsISupportsArray* mMedia;
nsISupportsArray* mRules;
};
CSSMediaRuleImpl::CSSMediaRuleImpl(void)
: nsCSSRule(),
mMedia(nsnull),
mRules(nsnull)
{
}
static PRBool
CloneRuleInto(nsISupports* aRule, void* aArray)
{
nsICSSRule* rule = (nsICSSRule*)aRule;
nsICSSRule* clone = nsnull;
rule->Clone(clone);
if (clone) {
nsISupportsArray* array = (nsISupportsArray*)aArray;
array->AppendElement(clone);
NS_RELEASE(clone);
}
return PR_TRUE;
}
CSSMediaRuleImpl::CSSMediaRuleImpl(const CSSMediaRuleImpl& aCopy)
: nsCSSRule(aCopy),
mMedia(nsnull),
mRules(nsnull)
{
if (aCopy.mMedia) {
NS_NewISupportsArray(&mMedia);
if (mMedia) {
mMedia->AppendElements(aCopy.mMedia);
}
}
if (aCopy.mRules) {
NS_NewISupportsArray(&mRules);
if (mRules) {
aCopy.mRules->EnumerateForwards(CloneRuleInto, mRules);
}
}
}
CSSMediaRuleImpl::~CSSMediaRuleImpl(void)
{
NS_IF_RELEASE(mMedia);
NS_IF_RELEASE(mRules);
}
NS_IMPL_ADDREF_INHERITED(CSSMediaRuleImpl, nsCSSRule);
NS_IMPL_RELEASE_INHERITED(CSSMediaRuleImpl, nsCSSRule);
nsresult
CSSMediaRuleImpl::QueryInterface(const nsIID& aIID,
void** aInstancePtrResult)
{
NS_PRECONDITION(nsnull != aInstancePtrResult, "null pointer");
if (nsnull == aInstancePtrResult) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(kICSSMediaRuleIID)) {
*aInstancePtrResult = (void*) ((nsICSSMediaRule*)this);
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kICSSRuleIID)) {
*aInstancePtrResult = (void*) ((nsICSSRule*)this);
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kIStyleRuleIID)) {
*aInstancePtrResult = (void*) ((nsIStyleRule*)this);
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kISupportsIID)) {
nsICSSMediaRule *tmp = this;
nsISupports *tmp2 = tmp;
*aInstancePtrResult = (void*) tmp2;
NS_ADDREF_THIS();
return NS_OK;
}
return NS_NOINTERFACE;
}
IMPL_STYLE_RULE_INHERIT2(CSSMediaRuleImpl, nsCSSRule);
static PRBool
SetStyleSheetReference(nsISupports* aRule, void* aSheet)
{
nsICSSRule* rule = (nsICSSRule*)aRule;
nsICSSStyleSheet* sheet = (nsICSSStyleSheet*)aSheet;
rule->SetStyleSheet(sheet);
return PR_TRUE;
}
NS_IMETHODIMP
CSSMediaRuleImpl::SetStyleSheet(nsICSSStyleSheet* aSheet)
{
if (mRules) {
mRules->EnumerateForwards(SetStyleSheetReference, aSheet);
}
return nsCSSRule::SetStyleSheet(aSheet);
}
NS_IMETHODIMP
CSSMediaRuleImpl::List(FILE* out, PRInt32 aIndent) const
{
for (PRInt32 indent = aIndent; --indent >= 0; ) fputs(" ", out);
nsAutoString buffer;
fputs("@media ", out);
if (mMedia) {
PRUint32 index = 0;
PRUint32 count;
mMedia->Count(&count);
while (index < count) {
nsIAtom* medium = (nsIAtom*)mMedia->ElementAt(index++);
medium->ToString(buffer);
fputs(buffer, out);
if (index < count) {
fputs(", ", out);
}
NS_RELEASE(medium);
}
}
fputs(" {\n", out);
if (mRules) {
PRUint32 index = 0;
PRUint32 count;
mRules->Count(&count);
while (index < count) {
nsICSSRule* rule = (nsICSSRule*)mRules->ElementAt(index++);
rule->List(out, aIndent + 1);
NS_RELEASE(rule);
}
}
fputs("}\n", out);
return NS_OK;
}
/******************************************************************************
* SizeOf method:
*
* Self (reported as CSSMediaRuleImpl's size):
* 1) sizeof(*this) + the size of each unique atom in the mMedia collection
*
* Contained / Aggregated data (not reported as CSSMediaRuleImpl's size):
* 1) Delegate to the rules in the mRules collection to report theri own size
*
* Children / siblings / parents:
* none
*
******************************************************************************/
void CSSMediaRuleImpl::SizeOf(nsISizeOfHandler *aSizeOfHandler, PRUint32 &aSize)
{
NS_ASSERTION(aSizeOfHandler != nsnull, "SizeOf handler cannot be null");
// first get the unique items collection
UNIQUE_STYLE_ITEMS(uniqueItems);
if(! uniqueItems->AddItem((void*)this)){
return;
}
PRUint32 localSize=0;
// create a tag for this instance
nsCOMPtr<nsIAtom> tag;
tag = getter_AddRefs(NS_NewAtom("CSSMediaRuleImpl"));
// get the size of an empty instance and add to the sizeof handler
aSize = sizeof(*this);
if (mMedia) {
// get the sizes of the media atoms (if unique)
PRUint32 index = 0;
PRUint32 count;
mMedia->Count(&count);
while (index < count) {
nsIAtom* medium = (nsIAtom*)mMedia->ElementAt(index++);
if(medium && uniqueItems->AddItem(medium)){
medium->SizeOf(aSizeOfHandler, &localSize);
aSize += localSize;
}
NS_IF_RELEASE(medium);
}
}
// we are done with the size we report for ourself
aSizeOfHandler->AddSize(tag,aSize);
if (mRules) {
// delegate to the rules themselves (do not sum into our size)
PRUint32 index = 0;
PRUint32 count;
mRules->Count(&count);
while (index < count) {
nsICSSRule* rule = (nsICSSRule*)mRules->ElementAt(index++);
rule->SizeOf(aSizeOfHandler, localSize);
NS_RELEASE(rule);
}
}
}
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NS_IMETHODIMP
CSSMediaRuleImpl::GetType(PRInt32& aType) const
{
aType = nsICSSRule::MEDIA_RULE;
return NS_OK;
}
NS_IMETHODIMP
CSSMediaRuleImpl::Clone(nsICSSRule*& aClone) const
{
CSSMediaRuleImpl* clone = new CSSMediaRuleImpl(*this);
if (clone) {
return clone->QueryInterface(kICSSRuleIID, (void **)&aClone);
}
aClone = nsnull;
return NS_ERROR_OUT_OF_MEMORY;
}
// nsICSSMediaRule methods
NS_IMETHODIMP
CSSMediaRuleImpl::SetMedia(nsISupportsArray* aMedia)
{
nsresult result = NS_OK;
NS_IF_RELEASE(mMedia);
mMedia = aMedia;
NS_IF_ADDREF(mMedia);
return result;
}
NS_IMETHODIMP
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CSSMediaRuleImpl::UseForMedium(nsIAtom* aMedium) const
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{
if (mMedia) {
if (-1 != mMedia->IndexOf(aMedium)) {
return NS_OK;
}
if (-1 != mMedia->IndexOf(nsLayoutAtoms::all)) {
return NS_OK;
}
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return NS_COMFALSE;
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}
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return NS_OK;
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}
NS_IMETHODIMP
CSSMediaRuleImpl::AppendStyleRule(nsICSSRule* aRule)
{
nsresult result = NS_OK;
if (nsnull == mRules) {
result = NS_NewISupportsArray(&mRules);
}
if (NS_SUCCEEDED(result) && (nsnull != mRules)) {
mRules->AppendElement(aRule);
aRule->SetStyleSheet(mSheet);
if (mSheet) {
mSheet->SetModified(PR_TRUE);
}
}
return result;
}
NS_IMETHODIMP
CSSMediaRuleImpl::StyleRuleCount(PRInt32& aCount) const
{
if (mRules) {
PRUint32 count;
mRules->Count(&count);
aCount = (PRInt32)count;
}
else {
aCount = 0;
}
return NS_OK;
}
NS_IMETHODIMP
CSSMediaRuleImpl::GetStyleRuleAt(PRInt32 aIndex, nsICSSRule*& aRule) const
{
if (mRules) {
aRule = (nsICSSRule*)mRules->ElementAt(aIndex);
return NS_OK;
}
return NS_ERROR_INVALID_ARG;
}
NS_IMETHODIMP
CSSMediaRuleImpl::EnumerateRulesForwards(nsISupportsArrayEnumFunc aFunc, void * aData) const
{
if (mRules) {
return ((mRules->EnumerateForwards(aFunc, aData)) ? NS_OK : NS_ENUMERATOR_FALSE);
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}
return NS_OK;
}
nsresult
NS_NewCSSMediaRule(nsICSSMediaRule** aInstancePtrResult)
{
if (! aInstancePtrResult) {
return NS_ERROR_NULL_POINTER;
}
CSSMediaRuleImpl* it = new CSSMediaRuleImpl();
if (! it) {
return NS_ERROR_OUT_OF_MEMORY;
}
return it->QueryInterface(kICSSMediaRuleIID, (void **) aInstancePtrResult);
}
// -------------------------------------------
// nsICSSNameSpaceRule
//
class CSSNameSpaceRuleImpl : public nsCSSRule,
public nsICSSNameSpaceRule
{
public:
CSSNameSpaceRuleImpl(void);
CSSNameSpaceRuleImpl(const CSSNameSpaceRuleImpl& aCopy);
virtual ~CSSNameSpaceRuleImpl(void);
NS_DECL_ISUPPORTS_INHERITED
DECL_STYLE_RULE_INHERIT
// nsIStyleRule methods
NS_IMETHOD List(FILE* out = stdout, PRInt32 aIndent = 0) const;
virtual void SizeOf(nsISizeOfHandler *aSizeOfHandler, PRUint32 &aSize);
1999-06-10 09:32:38 +04:00
// nsICSSRule methods
NS_IMETHOD GetType(PRInt32& aType) const;
NS_IMETHOD Clone(nsICSSRule*& aClone) const;
// nsICSSNameSpaceRule methods
NS_IMETHOD GetPrefix(nsIAtom*& aPrefix) const;
NS_IMETHOD SetPrefix(nsIAtom* aPrefix);
NS_IMETHOD GetURLSpec(nsString& aURLSpec) const;
NS_IMETHOD SetURLSpec(const nsString& aURLSpec);
protected:
nsIAtom* mPrefix;
nsString mURLSpec;
};
CSSNameSpaceRuleImpl::CSSNameSpaceRuleImpl(void)
: nsCSSRule(),
mPrefix(nsnull),
mURLSpec()
{
}
CSSNameSpaceRuleImpl::CSSNameSpaceRuleImpl(const CSSNameSpaceRuleImpl& aCopy)
: nsCSSRule(aCopy),
mPrefix(aCopy.mPrefix),
mURLSpec(aCopy.mURLSpec)
{
NS_IF_ADDREF(mPrefix);
}
CSSNameSpaceRuleImpl::~CSSNameSpaceRuleImpl(void)
{
NS_IF_RELEASE(mPrefix);
}
NS_IMPL_ADDREF_INHERITED(CSSNameSpaceRuleImpl, nsCSSRule);
NS_IMPL_RELEASE_INHERITED(CSSNameSpaceRuleImpl, nsCSSRule);
nsresult
CSSNameSpaceRuleImpl::QueryInterface(const nsIID& aIID,
void** aInstancePtrResult)
{
NS_PRECONDITION(nsnull != aInstancePtrResult, "null pointer");
if (nsnull == aInstancePtrResult) {
return NS_ERROR_NULL_POINTER;
}
if (aIID.Equals(kICSSNameSpaceRuleIID)) {
*aInstancePtrResult = (void*) ((nsICSSNameSpaceRule*)this);
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kICSSRuleIID)) {
*aInstancePtrResult = (void*) ((nsICSSRule*)this);
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kIStyleRuleIID)) {
*aInstancePtrResult = (void*) ((nsIStyleRule*)this);
NS_ADDREF_THIS();
return NS_OK;
}
if (aIID.Equals(kISupportsIID)) {
nsICSSNameSpaceRule *tmp = this;
nsISupports *tmp2 = tmp;
*aInstancePtrResult = (void*) tmp2;
NS_ADDREF_THIS();
return NS_OK;
}
return NS_NOINTERFACE;
}
IMPL_STYLE_RULE_INHERIT(CSSNameSpaceRuleImpl, nsCSSRule);
NS_IMETHODIMP
CSSNameSpaceRuleImpl::List(FILE* out, PRInt32 aIndent) const
{
for (PRInt32 indent = aIndent; --indent >= 0; ) fputs(" ", out);
nsAutoString buffer;
fputs("@namespace ", out);
if (mPrefix) {
mPrefix->ToString(buffer);
fputs(buffer, out);
fputs(" ", out);
}
fputs("url(", out);
fputs(mURLSpec, out);
fputs(")\n", out);
return NS_OK;
}
/******************************************************************************
* SizeOf method:
*
* Self (reported as CSSNamespaceRuleImpl's size):
* 1) sizeof(*this) + the size of the mURLSpec string +
* the sizeof the mPrefix atom (if it ieists)
*
* Contained / Aggregated data (not reported as CSSNamespaceRuleImpl's size):
* none
*
* Children / siblings / parents:
* none
*
******************************************************************************/
void CSSNameSpaceRuleImpl::SizeOf(nsISizeOfHandler *aSizeOfHandler, PRUint32 &aSize)
{
NS_ASSERTION(aSizeOfHandler != nsnull, "SizeOf handler cannot be null");
// first get the unique items collection
UNIQUE_STYLE_ITEMS(uniqueItems);
if(! uniqueItems->AddItem((void*)this)){
return;
}
PRUint32 localSize=0;
// create a tag for this instance
nsCOMPtr<nsIAtom> tag;
tag = getter_AddRefs(NS_NewAtom("CSSNameSpaceRuleImpl"));
// get the size of an empty instance and add to the sizeof handler
aSize = sizeof(*this);
// get the member data as part of this dump
mURLSpec.SizeOf(aSizeOfHandler, &localSize);
aSize += localSize;
aSize -= sizeof(mURLSpec); // counted in sizeof(*this) and nsString->SizeOf()
if(mPrefix && uniqueItems->AddItem(mPrefix)){
mPrefix->SizeOf(aSizeOfHandler, &localSize);
aSize += localSize;
}
aSizeOfHandler->AddSize(tag, aSize);
}
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NS_IMETHODIMP
CSSNameSpaceRuleImpl::GetType(PRInt32& aType) const
{
aType = nsICSSRule::NAMESPACE_RULE;
return NS_OK;
}
NS_IMETHODIMP
CSSNameSpaceRuleImpl::Clone(nsICSSRule*& aClone) const
{
CSSNameSpaceRuleImpl* clone = new CSSNameSpaceRuleImpl(*this);
if (clone) {
return clone->QueryInterface(kICSSRuleIID, (void **)&aClone);
}
aClone = nsnull;
return NS_ERROR_OUT_OF_MEMORY;
}
NS_IMETHODIMP
CSSNameSpaceRuleImpl::GetPrefix(nsIAtom*& aPrefix) const
{
aPrefix = mPrefix;
NS_IF_ADDREF(aPrefix);
return NS_OK;
}
NS_IMETHODIMP
CSSNameSpaceRuleImpl::SetPrefix(nsIAtom* aPrefix)
{
NS_IF_RELEASE(mPrefix);
mPrefix = aPrefix;
NS_IF_ADDREF(mPrefix);
return NS_OK;
}
NS_IMETHODIMP
CSSNameSpaceRuleImpl::GetURLSpec(nsString& aURLSpec) const
{
aURLSpec = mURLSpec;
return NS_OK;
}
NS_IMETHODIMP
CSSNameSpaceRuleImpl::SetURLSpec(const nsString& aURLSpec)
{
mURLSpec = aURLSpec;
return NS_OK;
}
nsresult
NS_NewCSSNameSpaceRule(nsICSSNameSpaceRule** aInstancePtrResult,
nsIAtom* aPrefix, const nsString& aURLSpec)
{
if (! aInstancePtrResult) {
return NS_ERROR_NULL_POINTER;
}
CSSNameSpaceRuleImpl* it = new CSSNameSpaceRuleImpl();
if (! it) {
return NS_ERROR_OUT_OF_MEMORY;
}
it->SetPrefix(aPrefix);
it->SetURLSpec(aURLSpec);
return it->QueryInterface(kICSSNameSpaceRuleIID, (void **) aInstancePtrResult);
}