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gecko-dev/layout/style/nsCSSRules.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla 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/MPL/
*
* 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.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Boris Zbarsky <bzbarsky@mit.edu>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/* rules in a CSS stylesheet other than style rules (e.g., @import rules) */
#include "nsCSSRules.h"
#include "nsCSSValue.h"
#include "mozilla/css/ImportRule.h"
#include "mozilla/css/NameSpaceRule.h"
#include "nsString.h"
#include "nsIAtom.h"
#include "nsIURL.h"
#include "nsCSSProps.h"
#include "nsCSSStyleSheet.h"
#include "nsCOMPtr.h"
#include "nsIDOMCSSStyleSheet.h"
#include "nsIDOMCSSMediaRule.h"
#include "nsIDOMCSSMozDocumentRule.h"
#include "nsIDOMCSSCharsetRule.h"
#include "nsIDOMCSSStyleDeclaration.h"
#include "nsIMediaList.h"
#include "nsICSSRuleList.h"
#include "nsIDocument.h"
#include "nsPresContext.h"
#include "nsContentUtils.h"
#include "nsStyleConsts.h"
#include "nsDOMError.h"
#include "nsStyleUtil.h"
#include "mozilla/css/Declaration.h"
#include "nsPrintfCString.h"
namespace css = mozilla::css;
#define IMPL_STYLE_RULE_INHERIT(_class, super) \
nsIDOMCSSRule* _class::GetDOMRuleWeak(nsresult *aResult) { *aResult = NS_OK; return this; } \
/* virtual */ void _class::MapRuleInfoInto(nsRuleData* aRuleData) { }
#define IMPL_STYLE_RULE_INHERIT2(_class, super) \
/* virtual */ void _class::MapRuleInfoInto(nsRuleData* aRuleData) { }
// base class for all rule types in a CSS style sheet
namespace mozilla {
namespace css {
NS_IMPL_ADDREF(Rule)
NS_IMPL_RELEASE(Rule)
/* virtual */ already_AddRefed<nsIStyleSheet>
Rule::GetStyleSheet() const
{
NS_IF_ADDREF(mSheet);
return mSheet;
}
/* virtual */ void
Rule::SetStyleSheet(nsCSSStyleSheet* aSheet)
{
// We don't reference count this up reference. The style sheet
// will tell us when it's going away or when we're detached from
// it.
mSheet = aSheet;
}
/* virtual */ void
Rule::SetParentRule(css::GroupRule* aRule)
{
// We don't reference count this up reference. The group rule
// will tell us when it's going away or when we're detached from
// it.
mParentRule = aRule;
}
} // namespace css
} // namespace mozilla
// -------------------------------
// Style Rule List for group rules
//
namespace mozilla {
namespace css {
class NS_FINAL_CLASS GroupRuleRuleList : public nsICSSRuleList
{
public:
GroupRuleRuleList(GroupRule *aGroupRule);
NS_DECL_ISUPPORTS
NS_DECL_NSIDOMCSSRULELIST
virtual nsIDOMCSSRule* GetItemAt(PRUint32 aIndex, nsresult* aResult);
void DropReference() { mGroupRule = nsnull; }
private:
~GroupRuleRuleList();
private:
GroupRule* mGroupRule;
};
GroupRuleRuleList::GroupRuleRuleList(GroupRule *aGroupRule)
{
// Not reference counted to avoid circular references.
// The rule will tell us when its going away.
mGroupRule = aGroupRule;
}
GroupRuleRuleList::~GroupRuleRuleList()
{
}
// QueryInterface implementation for CSSGroupRuleRuleList
NS_INTERFACE_MAP_BEGIN(GroupRuleRuleList)
NS_INTERFACE_MAP_ENTRY(nsICSSRuleList)
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRuleList)
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(CSSGroupRuleRuleList)
NS_INTERFACE_MAP_END
NS_IMPL_ADDREF(GroupRuleRuleList)
NS_IMPL_RELEASE(GroupRuleRuleList)
NS_IMETHODIMP
GroupRuleRuleList::GetLength(PRUint32* aLength)
{
if (mGroupRule) {
*aLength = (PRUint32)mGroupRule->StyleRuleCount();
} else {
*aLength = 0;
}
return NS_OK;
}
nsIDOMCSSRule*
GroupRuleRuleList::GetItemAt(PRUint32 aIndex, nsresult* aResult)
{
*aResult = NS_OK;
if (mGroupRule) {
nsCOMPtr<nsICSSRule> rule = mGroupRule->GetStyleRuleAt(aIndex);
if (rule) {
return rule->GetDOMRuleWeak(aResult);
}
}
return nsnull;
}
NS_IMETHODIMP
GroupRuleRuleList::Item(PRUint32 aIndex, nsIDOMCSSRule** aReturn)
{
nsresult rv;
nsIDOMCSSRule* rule = GetItemAt(aIndex, &rv);
if (!rule) {
*aReturn = nsnull;
return rv;
}
NS_ADDREF(*aReturn = rule);
return NS_OK;
}
} // namespace css
} // namespace mozilla
// Must be outside the namespace
DOMCI_DATA(CSSGroupRuleRuleList, css::GroupRuleRuleList)
// -------------------------------------------
// CharsetRule
//
class NS_FINAL_CLASS CSSCharsetRuleImpl : public css::Rule,
public nsIDOMCSSCharsetRule
{
public:
CSSCharsetRuleImpl(const nsAString& aEncoding);
CSSCharsetRuleImpl(const CSSCharsetRuleImpl& aCopy);
private:
~CSSCharsetRuleImpl() {}
public:
NS_DECL_ISUPPORTS_INHERITED
DECL_STYLE_RULE_INHERIT
// nsIStyleRule methods
#ifdef DEBUG
virtual void List(FILE* out = stdout, PRInt32 aIndent = 0) const;
#endif
// nsICSSRule methods
virtual PRInt32 GetType() const;
virtual already_AddRefed<nsICSSRule> Clone() const;
// nsIDOMCSSRule interface
NS_DECL_NSIDOMCSSRULE
// nsIDOMCSSCharsetRule methods
NS_IMETHOD GetEncoding(nsAString& aEncoding);
NS_IMETHOD SetEncoding(const nsAString& aEncoding);
protected:
nsString mEncoding;
};
CSSCharsetRuleImpl::CSSCharsetRuleImpl(const nsAString& aEncoding)
: css::Rule(),
mEncoding(aEncoding)
{
}
CSSCharsetRuleImpl::CSSCharsetRuleImpl(const CSSCharsetRuleImpl& aCopy)
: css::Rule(aCopy),
mEncoding(aCopy.mEncoding)
{
}
NS_IMPL_ADDREF_INHERITED(CSSCharsetRuleImpl, css::Rule)
NS_IMPL_RELEASE_INHERITED(CSSCharsetRuleImpl, css::Rule)
DOMCI_DATA(CSSCharsetRule, CSSCharsetRuleImpl)
// QueryInterface implementation for CSSCharsetRuleImpl
NS_INTERFACE_MAP_BEGIN(CSSCharsetRuleImpl)
NS_INTERFACE_MAP_ENTRY(nsICSSRule)
NS_INTERFACE_MAP_ENTRY(nsIStyleRule)
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRule)
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSCharsetRule)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsICSSRule)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(CSSCharsetRule)
NS_INTERFACE_MAP_END
IMPL_STYLE_RULE_INHERIT(CSSCharsetRuleImpl, css::Rule)
#ifdef DEBUG
/* virtual */ void
CSSCharsetRuleImpl::List(FILE* out, PRInt32 aIndent) const
{
// Indent
for (PRInt32 indent = aIndent; --indent >= 0; ) fputs(" ", out);
fputs("@charset \"", out);
fputs(NS_LossyConvertUTF16toASCII(mEncoding).get(), out);
fputs("\"\n", out);
}
#endif
/* virtual */ PRInt32
CSSCharsetRuleImpl::GetType() const
{
return nsICSSRule::CHARSET_RULE;
}
/* virtual */ already_AddRefed<nsICSSRule>
CSSCharsetRuleImpl::Clone() const
{
nsCOMPtr<nsICSSRule> clone = new CSSCharsetRuleImpl(*this);
return clone.forget();
}
NS_IMETHODIMP
CSSCharsetRuleImpl::GetEncoding(nsAString& aEncoding)
{
aEncoding = mEncoding;
return NS_OK;
}
NS_IMETHODIMP
CSSCharsetRuleImpl::SetEncoding(const nsAString& aEncoding)
{
mEncoding = aEncoding;
return NS_OK;
}
nsresult
NS_NewCSSCharsetRule(nsICSSRule** aInstancePtrResult, const nsAString& aEncoding)
{
if (! aInstancePtrResult) {
return NS_ERROR_NULL_POINTER;
}
CSSCharsetRuleImpl* it = new CSSCharsetRuleImpl(aEncoding);
if (!it) {
return NS_ERROR_OUT_OF_MEMORY;
}
NS_ADDREF(*aInstancePtrResult = it);
return NS_OK;
}
NS_IMETHODIMP
CSSCharsetRuleImpl::GetType(PRUint16* aType)
{
*aType = nsIDOMCSSRule::CHARSET_RULE;
return NS_OK;
}
NS_IMETHODIMP
CSSCharsetRuleImpl::GetCssText(nsAString& aCssText)
{
aCssText.AssignLiteral("@charset \"");
aCssText.Append(mEncoding);
aCssText.AppendLiteral("\";");
return NS_OK;
}
NS_IMETHODIMP
CSSCharsetRuleImpl::SetCssText(const nsAString& aCssText)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
CSSCharsetRuleImpl::GetParentStyleSheet(nsIDOMCSSStyleSheet** aSheet)
{
NS_ENSURE_ARG_POINTER(aSheet);
NS_IF_ADDREF(*aSheet = mSheet);
return NS_OK;
}
NS_IMETHODIMP
CSSCharsetRuleImpl::GetParentRule(nsIDOMCSSRule** aParentRule)
{
if (mParentRule) {
return mParentRule->GetDOMRule(aParentRule);
}
*aParentRule = nsnull;
return NS_OK;
}
// -------------------------------------------
// ImportRule
//
namespace mozilla {
namespace css {
ImportRule::ImportRule(nsMediaList* aMedia)
: Rule()
, mURLSpec()
, mMedia(aMedia)
{
// XXXbz This is really silly.... the mMedia here will be replaced
// with itself if we manage to load a sheet. Which should really
// never fail nowadays, in sane cases.
}
ImportRule::ImportRule(const ImportRule& aCopy)
: Rule(aCopy),
mURLSpec(aCopy.mURLSpec)
{
// Whether or not an @import rule has a null sheet is a permanent
// property of that @import rule, since it is null only if the target
// sheet failed security checks.
if (aCopy.mChildSheet) {
nsRefPtr<nsCSSStyleSheet> sheet =
aCopy.mChildSheet->Clone(nsnull, this, nsnull, nsnull);
SetSheet(sheet);
// SetSheet sets mMedia appropriately
}
}
ImportRule::~ImportRule()
{
if (mChildSheet) {
mChildSheet->SetOwnerRule(nsnull);
}
}
NS_IMPL_ADDREF_INHERITED(ImportRule, Rule)
NS_IMPL_RELEASE_INHERITED(ImportRule, Rule)
// QueryInterface implementation for ImportRule
NS_INTERFACE_MAP_BEGIN(ImportRule)
NS_INTERFACE_MAP_ENTRY(nsICSSRule)
NS_INTERFACE_MAP_ENTRY(nsIStyleRule)
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRule)
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSImportRule)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsICSSRule)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(CSSImportRule)
NS_INTERFACE_MAP_END
IMPL_STYLE_RULE_INHERIT(ImportRule, Rule)
#ifdef DEBUG
/* virtual */ void
ImportRule::List(FILE* out, PRInt32 aIndent) const
{
// Indent
for (PRInt32 indent = aIndent; --indent >= 0; ) fputs(" ", out);
fputs("@import \"", out);
fputs(NS_LossyConvertUTF16toASCII(mURLSpec).get(), out);
fputs("\" ", out);
nsAutoString mediaText;
mMedia->GetText(mediaText);
fputs(NS_LossyConvertUTF16toASCII(mediaText).get(), out);
fputs("\n", out);
}
#endif
/* virtual */ PRInt32
ImportRule::GetType() const
{
return nsICSSRule::IMPORT_RULE;
}
/* virtual */ already_AddRefed<nsICSSRule>
ImportRule::Clone() const
{
nsCOMPtr<nsICSSRule> clone = new ImportRule(*this);
return clone.forget();
}
nsresult
ImportRule::SetMedia(const nsString& aMedia)
{
if (mMedia) {
return mMedia->SetText(aMedia);
} else {
return NS_OK;
}
}
void
ImportRule::GetMedia(nsString& aMedia) const
{
if (mMedia) {
mMedia->GetText(aMedia);
} else {
aMedia.Truncate();
}
}
void
ImportRule::SetSheet(nsCSSStyleSheet* aSheet)
{
NS_PRECONDITION(aSheet, "null arg");
// set the new sheet
mChildSheet = aSheet;
aSheet->SetOwnerRule(this);
// set our medialist to be the same as the sheet's medialist
nsCOMPtr<nsIDOMMediaList> mediaList;
mChildSheet->GetMedia(getter_AddRefs(mediaList));
NS_ABORT_IF_FALSE(mediaList, "GetMedia returned null");
mMedia = static_cast<nsMediaList*>(mediaList.get());
}
NS_IMETHODIMP
ImportRule::GetType(PRUint16* aType)
{
NS_ENSURE_ARG_POINTER(aType);
*aType = nsIDOMCSSRule::IMPORT_RULE;
return NS_OK;
}
NS_IMETHODIMP
ImportRule::GetCssText(nsAString& aCssText)
{
aCssText.AssignLiteral("@import url(");
nsStyleUtil::AppendEscapedCSSString(mURLSpec, aCssText);
aCssText.Append(NS_LITERAL_STRING(")"));
if (mMedia) {
nsAutoString mediaText;
mMedia->GetText(mediaText);
if (!mediaText.IsEmpty()) {
aCssText.AppendLiteral(" ");
aCssText.Append(mediaText);
}
}
aCssText.AppendLiteral(";");
return NS_OK;
}
NS_IMETHODIMP
ImportRule::SetCssText(const nsAString& aCssText)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
ImportRule::GetParentStyleSheet(nsIDOMCSSStyleSheet** aSheet)
{
NS_ENSURE_ARG_POINTER(aSheet);
NS_IF_ADDREF(*aSheet = mSheet);
return NS_OK;
}
NS_IMETHODIMP
ImportRule::GetParentRule(nsIDOMCSSRule** aParentRule)
{
if (mParentRule) {
return mParentRule->GetDOMRule(aParentRule);
}
*aParentRule = nsnull;
return NS_OK;
}
NS_IMETHODIMP
ImportRule::GetHref(nsAString & aHref)
{
aHref = mURLSpec;
return NS_OK;
}
NS_IMETHODIMP
ImportRule::GetMedia(nsIDOMMediaList * *aMedia)
{
NS_ENSURE_ARG_POINTER(aMedia);
NS_IF_ADDREF(*aMedia = mMedia);
return NS_OK;
}
NS_IMETHODIMP
ImportRule::GetStyleSheet(nsIDOMCSSStyleSheet * *aStyleSheet)
{
NS_ENSURE_ARG_POINTER(aStyleSheet);
NS_IF_ADDREF(*aStyleSheet = mChildSheet);
return NS_OK;
}
} // namespace css
} // namespace mozilla
// must be outside the namespace
DOMCI_DATA(CSSImportRule, css::ImportRule)
nsresult
NS_NewCSSImportRule(css::ImportRule** aInstancePtrResult,
const nsString& aURLSpec,
nsMediaList* aMedia)
{
NS_ENSURE_ARG_POINTER(aInstancePtrResult);
css::ImportRule* it = new css::ImportRule(aMedia);
if (!it) {
return NS_ERROR_OUT_OF_MEMORY;
}
it->SetURLSpec(aURLSpec);
NS_ADDREF(*aInstancePtrResult = it);
return NS_OK;
}
static PRBool
CloneRuleInto(nsICSSRule* aRule, void* aArray)
{
nsCOMPtr<nsICSSRule> clone = aRule->Clone();
static_cast<nsCOMArray<nsICSSRule>*>(aArray)->AppendObject(clone);
return PR_TRUE;
}
namespace mozilla {
namespace css {
GroupRule::GroupRule()
: Rule()
{
}
static PRBool
SetParentRuleReference(nsICSSRule* aRule, void* aParentRule)
{
GroupRule* parentRule = static_cast<GroupRule*>(aParentRule);
aRule->SetParentRule(parentRule);
return PR_TRUE;
}
GroupRule::GroupRule(const GroupRule& aCopy)
: Rule(aCopy)
{
const_cast<GroupRule&>(aCopy).mRules.EnumerateForwards(CloneRuleInto, &mRules);
mRules.EnumerateForwards(SetParentRuleReference, this);
}
GroupRule::~GroupRule()
{
mRules.EnumerateForwards(SetParentRuleReference, nsnull);
if (mRuleCollection) {
mRuleCollection->DropReference();
}
}
IMPL_STYLE_RULE_INHERIT2(GroupRule, Rule)
static PRBool
SetStyleSheetReference(nsICSSRule* aRule, void* aSheet)
{
nsCSSStyleSheet* sheet = (nsCSSStyleSheet*)aSheet;
aRule->SetStyleSheet(sheet);
return PR_TRUE;
}
/* virtual */ void
GroupRule::SetStyleSheet(nsCSSStyleSheet* aSheet)
{
mRules.EnumerateForwards(SetStyleSheetReference, aSheet);
Rule::SetStyleSheet(aSheet);
}
#ifdef DEBUG
/* virtual */ void
GroupRule::List(FILE* out, PRInt32 aIndent) const
{
fputs(" {\n", out);
for (PRInt32 index = 0, count = mRules.Count(); index < count; ++index) {
mRules.ObjectAt(index)->List(out, aIndent + 1);
}
fputs("}\n", out);
}
#endif
void
GroupRule::AppendStyleRule(nsICSSRule* aRule)
{
mRules.AppendObject(aRule);
aRule->SetStyleSheet(mSheet);
aRule->SetParentRule(this);
if (mSheet) {
// XXXldb Shouldn't we be using |WillDirty| and |DidDirty| (and
// shouldn't |SetModified| be removed?
mSheet->SetModified(PR_TRUE);
}
}
nsICSSRule*
GroupRule::GetStyleRuleAt(PRInt32 aIndex) const
{
return mRules.SafeObjectAt(aIndex);
}
PRBool
GroupRule::EnumerateRulesForwards(RuleEnumFunc aFunc, void * aData) const
{
return
const_cast<GroupRule*>(this)->mRules.EnumerateForwards(aFunc, aData);
}
/*
* The next two methods (DeleteStyleRuleAt and InsertStyleRulesAt)
* should never be called unless you have first called WillDirty() on
* the parents tylesheet. After they are called, DidDirty() needs to
* be called on the sheet
*/
nsresult
GroupRule::DeleteStyleRuleAt(PRUint32 aIndex)
{
nsICSSRule* rule = mRules.SafeObjectAt(aIndex);
if (rule) {
rule->SetStyleSheet(nsnull);
rule->SetParentRule(nsnull);
}
return mRules.RemoveObjectAt(aIndex) ? NS_OK : NS_ERROR_ILLEGAL_VALUE;
}
nsresult
GroupRule::InsertStyleRulesAt(PRUint32 aIndex,
nsCOMArray<nsICSSRule>& aRules)
{
aRules.EnumerateForwards(SetStyleSheetReference, mSheet);
aRules.EnumerateForwards(SetParentRuleReference, this);
if (! mRules.InsertObjectsAt(aRules, aIndex)) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
nsresult
GroupRule::ReplaceStyleRule(nsICSSRule* aOld, nsICSSRule* aNew)
{
PRInt32 index = mRules.IndexOf(aOld);
NS_ENSURE_TRUE(index != -1, NS_ERROR_UNEXPECTED);
mRules.ReplaceObjectAt(aNew, index);
aNew->SetStyleSheet(mSheet);
aNew->SetParentRule(this);
aOld->SetStyleSheet(nsnull);
aOld->SetParentRule(nsnull);
return NS_OK;
}
nsresult
GroupRule::AppendRulesToCssText(nsAString& aCssText)
{
aCssText.AppendLiteral(" {\n");
// get all the rules
for (PRInt32 index = 0, count = mRules.Count(); index < count; ++index) {
nsICSSRule* rule = mRules.ObjectAt(index);
nsCOMPtr<nsIDOMCSSRule> domRule;
rule->GetDOMRule(getter_AddRefs(domRule));
if (domRule) {
nsAutoString cssText;
domRule->GetCssText(cssText);
aCssText.Append(NS_LITERAL_STRING(" ") +
cssText +
NS_LITERAL_STRING("\n"));
}
}
aCssText.AppendLiteral("}");
return NS_OK;
}
nsresult
GroupRule::GetParentRule(nsIDOMCSSRule** aParentRule)
{
if (mParentRule) {
return mParentRule->GetDOMRule(aParentRule);
}
*aParentRule = nsnull;
return NS_OK;
}
// nsIDOMCSSMediaRule or nsIDOMCSSMozDocumentRule methods
nsIDOMCSSRuleList*
GroupRule::GetCssRules()
{
if (!mRuleCollection) {
mRuleCollection = new css::GroupRuleRuleList(this);
}
return mRuleCollection;
}
nsresult
GroupRule::InsertRule(const nsAString & aRule, PRUint32 aIndex, PRUint32* _retval)
{
NS_ENSURE_TRUE(mSheet, NS_ERROR_FAILURE);
if (aIndex > PRUint32(mRules.Count()))
return NS_ERROR_DOM_INDEX_SIZE_ERR;
NS_ASSERTION(PRUint32(mRules.Count()) <= PR_INT32_MAX,
"Too many style rules!");
return mSheet->InsertRuleIntoGroup(aRule, this, aIndex, _retval);
}
nsresult
GroupRule::DeleteRule(PRUint32 aIndex)
{
NS_ENSURE_TRUE(mSheet, NS_ERROR_FAILURE);
if (aIndex >= PRUint32(mRules.Count()))
return NS_ERROR_DOM_INDEX_SIZE_ERR;
NS_ASSERTION(PRUint32(mRules.Count()) <= PR_INT32_MAX,
"Too many style rules!");
return mSheet->DeleteRuleFromGroup(this, aIndex);
}
// -------------------------------------------
// nsICSSMediaRule
//
MediaRule::MediaRule()
{
}
MediaRule::MediaRule(const MediaRule& aCopy)
: GroupRule(aCopy)
{
if (aCopy.mMedia) {
aCopy.mMedia->Clone(getter_AddRefs(mMedia));
if (mMedia) {
// XXXldb This doesn't really make sense.
mMedia->SetStyleSheet(aCopy.mSheet);
}
}
}
MediaRule::~MediaRule()
{
if (mMedia) {
mMedia->SetStyleSheet(nsnull);
}
}
NS_IMPL_ADDREF_INHERITED(MediaRule, Rule)
NS_IMPL_RELEASE_INHERITED(MediaRule, Rule)
// QueryInterface implementation for MediaRule
NS_INTERFACE_MAP_BEGIN(MediaRule)
NS_INTERFACE_MAP_ENTRY(nsICSSRule)
NS_INTERFACE_MAP_ENTRY(nsIStyleRule)
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRule)
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSMediaRule)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsICSSRule)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(CSSMediaRule)
NS_INTERFACE_MAP_END
/* virtual */ void
MediaRule::SetStyleSheet(nsCSSStyleSheet* aSheet)
{
if (mMedia) {
// Set to null so it knows it's leaving one sheet and joining another.
mMedia->SetStyleSheet(nsnull);
mMedia->SetStyleSheet(aSheet);
}
GroupRule::SetStyleSheet(aSheet);
}
#ifdef DEBUG
/* virtual */ void
MediaRule::List(FILE* out, PRInt32 aIndent) const
{
for (PRInt32 indent = aIndent; --indent >= 0; ) fputs(" ", out);
nsAutoString buffer;
fputs("@media ", out);
if (mMedia) {
nsAutoString mediaText;
mMedia->GetText(mediaText);
fputs(NS_LossyConvertUTF16toASCII(mediaText).get(), out);
}
GroupRule::List(out, aIndent);
}
#endif
/* virtual */ PRInt32
MediaRule::GetType() const
{
return nsICSSRule::MEDIA_RULE;
}
/* virtual */ already_AddRefed<nsICSSRule>
MediaRule::Clone() const
{
nsCOMPtr<nsICSSRule> clone = new MediaRule(*this);
return clone.forget();
}
nsresult
MediaRule::SetMedia(nsMediaList* aMedia)
{
mMedia = aMedia;
if (aMedia)
mMedia->SetStyleSheet(mSheet);
return NS_OK;
}
// nsIDOMCSSRule methods
NS_IMETHODIMP
MediaRule::GetType(PRUint16* aType)
{
*aType = nsIDOMCSSRule::MEDIA_RULE;
return NS_OK;
}
NS_IMETHODIMP
MediaRule::GetCssText(nsAString& aCssText)
{
aCssText.AssignLiteral("@media ");
// get all the media
if (mMedia) {
nsAutoString mediaText;
mMedia->GetText(mediaText);
aCssText.Append(mediaText);
}
return GroupRule::AppendRulesToCssText(aCssText);
}
NS_IMETHODIMP
MediaRule::SetCssText(const nsAString& aCssText)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
MediaRule::GetParentStyleSheet(nsIDOMCSSStyleSheet** aSheet)
{
NS_IF_ADDREF(*aSheet = mSheet);
return NS_OK;
}
NS_IMETHODIMP
MediaRule::GetParentRule(nsIDOMCSSRule** aParentRule)
{
return GroupRule::GetParentRule(aParentRule);
}
// nsIDOMCSSMediaRule methods
NS_IMETHODIMP
MediaRule::GetMedia(nsIDOMMediaList* *aMedia)
{
NS_ENSURE_ARG_POINTER(aMedia);
NS_IF_ADDREF(*aMedia = mMedia);
return NS_OK;
}
NS_IMETHODIMP
MediaRule::GetCssRules(nsIDOMCSSRuleList* *aRuleList)
{
NS_ADDREF(*aRuleList = GroupRule::GetCssRules());
return NS_OK;
}
NS_IMETHODIMP
MediaRule::InsertRule(const nsAString & aRule, PRUint32 aIndex, PRUint32* _retval)
{
return GroupRule::InsertRule(aRule, aIndex, _retval);
}
NS_IMETHODIMP
MediaRule::DeleteRule(PRUint32 aIndex)
{
return GroupRule::DeleteRule(aIndex);
}
// GroupRule interface
/* virtual */ PRBool
MediaRule::UseForPresentation(nsPresContext* aPresContext,
nsMediaQueryResultCacheKey& aKey)
{
if (mMedia) {
return mMedia->Matches(aPresContext, aKey);
}
return PR_TRUE;
}
} // namespace css
} // namespace mozilla
// Must be outside namespace
DOMCI_DATA(CSSMediaRule, css::MediaRule)
namespace mozilla {
namespace css {
DocumentRule::DocumentRule()
{
}
DocumentRule::DocumentRule(const DocumentRule& aCopy)
: GroupRule(aCopy)
, mURLs(new URL(*aCopy.mURLs))
{
}
DocumentRule::~DocumentRule()
{
}
NS_IMPL_ADDREF_INHERITED(DocumentRule, Rule)
NS_IMPL_RELEASE_INHERITED(DocumentRule, Rule)
// QueryInterface implementation for DocumentRule
NS_INTERFACE_MAP_BEGIN(DocumentRule)
NS_INTERFACE_MAP_ENTRY(nsICSSRule)
NS_INTERFACE_MAP_ENTRY(nsIStyleRule)
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRule)
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSMozDocumentRule)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsICSSRule)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(CSSMozDocumentRule)
NS_INTERFACE_MAP_END
#ifdef DEBUG
/* virtual */ void
DocumentRule::List(FILE* out, PRInt32 aIndent) const
{
for (PRInt32 indent = aIndent; --indent >= 0; ) fputs(" ", out);
nsCAutoString str;
str.AssignLiteral("@-moz-document ");
for (URL *url = mURLs; url; url = url->next) {
switch (url->func) {
case eURL:
str.AppendLiteral("url(\"");
break;
case eURLPrefix:
str.AppendLiteral("url-prefix(\"");
break;
case eDomain:
str.AppendLiteral("domain(\"");
break;
}
nsCAutoString escapedURL(url->url);
escapedURL.ReplaceSubstring("\"", "\\\""); // escape quotes
str.Append(escapedURL);
str.AppendLiteral("\"), ");
}
str.Cut(str.Length() - 2, 1); // remove last ,
fputs(str.get(), out);
GroupRule::List(out, aIndent);
}
#endif
/* virtual */ PRInt32
DocumentRule::GetType() const
{
return nsICSSRule::DOCUMENT_RULE;
}
/* virtual */ already_AddRefed<nsICSSRule>
DocumentRule::Clone() const
{
nsCOMPtr<nsICSSRule> clone = new DocumentRule(*this);
return clone.forget();
}
// nsIDOMCSSRule methods
NS_IMETHODIMP
DocumentRule::GetType(PRUint16* aType)
{
// XXX What should really happen here?
*aType = nsIDOMCSSRule::UNKNOWN_RULE;
return NS_OK;
}
NS_IMETHODIMP
DocumentRule::GetCssText(nsAString& aCssText)
{
aCssText.AssignLiteral("@-moz-document ");
for (URL *url = mURLs; url; url = url->next) {
switch (url->func) {
case eURL:
aCssText.AppendLiteral("url(");
break;
case eURLPrefix:
aCssText.AppendLiteral("url-prefix(");
break;
case eDomain:
aCssText.AppendLiteral("domain(");
break;
}
nsStyleUtil::AppendEscapedCSSString(NS_ConvertUTF8toUTF16(url->url),
aCssText);
aCssText.AppendLiteral("), ");
}
aCssText.Cut(aCssText.Length() - 2, 1); // remove last ,
return GroupRule::AppendRulesToCssText(aCssText);
}
NS_IMETHODIMP
DocumentRule::SetCssText(const nsAString& aCssText)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
DocumentRule::GetParentStyleSheet(nsIDOMCSSStyleSheet** aSheet)
{
NS_IF_ADDREF(*aSheet = mSheet);
return NS_OK;
}
NS_IMETHODIMP
DocumentRule::GetParentRule(nsIDOMCSSRule** aParentRule)
{
return GroupRule::GetParentRule(aParentRule);
}
NS_IMETHODIMP
DocumentRule::GetCssRules(nsIDOMCSSRuleList* *aRuleList)
{
NS_ADDREF(*aRuleList = GroupRule::GetCssRules());
return NS_OK;
}
NS_IMETHODIMP
DocumentRule::InsertRule(const nsAString & aRule, PRUint32 aIndex, PRUint32* _retval)
{
return GroupRule::InsertRule(aRule, aIndex, _retval);
}
NS_IMETHODIMP
DocumentRule::DeleteRule(PRUint32 aIndex)
{
return GroupRule::DeleteRule(aIndex);
}
// GroupRule interface
/* virtual */ PRBool
DocumentRule::UseForPresentation(nsPresContext* aPresContext,
nsMediaQueryResultCacheKey& aKey)
{
nsIURI *docURI = aPresContext->Document()->GetDocumentURI();
nsCAutoString docURISpec;
if (docURI)
docURI->GetSpec(docURISpec);
for (URL *url = mURLs; url; url = url->next) {
switch (url->func) {
case eURL: {
if (docURISpec == url->url)
return PR_TRUE;
} break;
case eURLPrefix: {
if (StringBeginsWith(docURISpec, url->url))
return PR_TRUE;
} break;
case eDomain: {
nsCAutoString host;
if (docURI)
docURI->GetHost(host);
PRInt32 lenDiff = host.Length() - url->url.Length();
if (lenDiff == 0) {
if (host == url->url)
return PR_TRUE;
} else {
if (StringEndsWith(host, url->url) &&
host.CharAt(lenDiff - 1) == '.')
return PR_TRUE;
}
} break;
}
}
return PR_FALSE;
}
DocumentRule::URL::~URL()
{
NS_CSS_DELETE_LIST_MEMBER(DocumentRule::URL, this, next);
}
} // namespace css
} // namespace mozilla
// Must be outside namespace
DOMCI_DATA(CSSMozDocumentRule, css::DocumentRule)
// -------------------------------------------
// NameSpaceRule
//
namespace mozilla {
namespace css {
NameSpaceRule::NameSpaceRule()
: Rule(),
mPrefix(nsnull),
mURLSpec()
{
}
NameSpaceRule::NameSpaceRule(const NameSpaceRule& aCopy)
: Rule(aCopy),
mPrefix(aCopy.mPrefix),
mURLSpec(aCopy.mURLSpec)
{
}
NameSpaceRule::~NameSpaceRule()
{
}
NS_IMPL_ADDREF_INHERITED(NameSpaceRule, Rule)
NS_IMPL_RELEASE_INHERITED(NameSpaceRule, Rule)
// QueryInterface implementation for NameSpaceRule
NS_INTERFACE_MAP_BEGIN(NameSpaceRule)
if (aIID.Equals(NS_GET_IID(css::NameSpaceRule))) {
*aInstancePtr = this;
NS_ADDREF_THIS();
return NS_OK;
}
else
NS_INTERFACE_MAP_ENTRY(nsICSSRule)
NS_INTERFACE_MAP_ENTRY(nsIStyleRule)
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRule)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsICSSRule)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(CSSNameSpaceRule)
NS_INTERFACE_MAP_END
IMPL_STYLE_RULE_INHERIT(NameSpaceRule, Rule)
#ifdef DEBUG
/* virtual */ void
NameSpaceRule::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(NS_LossyConvertUTF16toASCII(buffer).get(), out);
fputs(" ", out);
}
fputs("url(", out);
fputs(NS_LossyConvertUTF16toASCII(mURLSpec).get(), out);
fputs(")\n", out);
}
#endif
/* virtual */ PRInt32
NameSpaceRule::GetType() const
{
return nsICSSRule::NAMESPACE_RULE;
}
/* virtual */ already_AddRefed<nsICSSRule>
NameSpaceRule::Clone() const
{
nsCOMPtr<nsICSSRule> clone = new NameSpaceRule(*this);
return clone.forget();
}
NS_IMETHODIMP
NameSpaceRule::GetType(PRUint16* aType)
{
// XXX What should really happen here?
*aType = nsIDOMCSSRule::UNKNOWN_RULE;
return NS_OK;
}
NS_IMETHODIMP
NameSpaceRule::GetCssText(nsAString& aCssText)
{
aCssText.AssignLiteral("@namespace ");
if (mPrefix) {
aCssText.Append(nsDependentAtomString(mPrefix) + NS_LITERAL_STRING(" "));
}
aCssText.AppendLiteral("url(");
nsStyleUtil::AppendEscapedCSSString(mURLSpec, aCssText);
aCssText.Append(NS_LITERAL_STRING(");"));
return NS_OK;
}
NS_IMETHODIMP
NameSpaceRule::SetCssText(const nsAString& aCssText)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
NameSpaceRule::GetParentStyleSheet(nsIDOMCSSStyleSheet** aSheet)
{
NS_IF_ADDREF(*aSheet = mSheet);
return NS_OK;
}
NS_IMETHODIMP
NameSpaceRule::GetParentRule(nsIDOMCSSRule** aParentRule)
{
if (mParentRule) {
return mParentRule->GetDOMRule(aParentRule);
}
*aParentRule = nsnull;
return NS_OK;
}
} // namespace css
} // namespace mozilla
// Must be outside namespace
DOMCI_DATA(CSSNameSpaceRule, css::NameSpaceRule)
nsresult
NS_NewCSSNameSpaceRule(css::NameSpaceRule** aInstancePtrResult,
nsIAtom* aPrefix, const nsString& aURLSpec)
{
if (! aInstancePtrResult) {
return NS_ERROR_NULL_POINTER;
}
css::NameSpaceRule* it = new css::NameSpaceRule();
if (!it) {
return NS_ERROR_OUT_OF_MEMORY;
}
it->SetPrefix(aPrefix);
it->SetURLSpec(aURLSpec);
NS_ADDREF(*aInstancePtrResult = it);
return NS_OK;
}
// -------------------------------------------
// nsCSSFontFaceStyleDecl and related routines
//
// A src: descriptor is represented as an array value; each entry in
// the array can be eCSSUnit_URL, eCSSUnit_Local_Font, or
// eCSSUnit_Font_Format. Blocks of eCSSUnit_Font_Format may appear
// only after one of the first two. (css3-fonts only contemplates
// annotating URLs with formats, but we handle the general case.)
static void
AppendSerializedFontSrc(const nsCSSValue& src, nsAString & aResult NS_OUTPARAM)
{
NS_PRECONDITION(src.GetUnit() == eCSSUnit_Array,
"improper value unit for src:");
const nsCSSValue::Array& sources = *src.GetArrayValue();
size_t i = 0;
while (i < sources.Count()) {
nsAutoString formats;
if (sources[i].GetUnit() == eCSSUnit_URL) {
aResult.AppendLiteral("url(");
nsDependentString url(sources[i].GetOriginalURLValue());
nsStyleUtil::AppendEscapedCSSString(url, aResult);
aResult.AppendLiteral(")");
} else if (sources[i].GetUnit() == eCSSUnit_Local_Font) {
aResult.AppendLiteral("local(");
nsDependentString local(sources[i].GetStringBufferValue());
nsStyleUtil::AppendEscapedCSSString(local, aResult);
aResult.AppendLiteral(")");
} else {
NS_NOTREACHED("entry in src: descriptor with improper unit");
i++;
continue;
}
i++;
formats.Truncate();
while (i < sources.Count() &&
sources[i].GetUnit() == eCSSUnit_Font_Format) {
formats.Append('"');
formats.Append(sources[i].GetStringBufferValue());
formats.AppendLiteral("\", ");
i++;
}
if (formats.Length() > 0) {
formats.Truncate(formats.Length() - 2); // remove the last comma
aResult.AppendLiteral(" format(");
aResult.Append(formats);
aResult.Append(')');
}
aResult.AppendLiteral(", ");
}
aResult.Truncate(aResult.Length() - 2); // remove the last comma-space
}
// print all characters with at least four hex digits
static void
AppendSerializedUnicodePoint(PRUint32 aCode, nsACString &aBuf NS_OUTPARAM)
{
aBuf.Append(nsPrintfCString("%04X", aCode));
}
// A unicode-range: descriptor is represented as an array of integers,
// to be interpreted as a sequence of pairs: min max min max ...
// It is in source order. (Possibly it should be sorted and overlaps
// consolidated, but right now we don't do that.)
static void
AppendSerializedUnicodeRange(nsCSSValue const & aValue,
nsAString & aResult NS_OUTPARAM)
{
NS_PRECONDITION(aValue.GetUnit() == eCSSUnit_Null ||
aValue.GetUnit() == eCSSUnit_Array,
"improper value unit for unicode-range:");
aResult.Truncate();
if (aValue.GetUnit() != eCSSUnit_Array)
return;
nsCSSValue::Array const & sources = *aValue.GetArrayValue();
nsCAutoString buf;
NS_ABORT_IF_FALSE(sources.Count() % 2 == 0,
"odd number of entries in a unicode-range: array");
for (PRUint32 i = 0; i < sources.Count(); i += 2) {
PRUint32 min = sources[i].GetIntValue();
PRUint32 max = sources[i+1].GetIntValue();
// We don't try to replicate the U+XX?? notation.
buf.AppendLiteral("U+");
AppendSerializedUnicodePoint(min, buf);
if (min != max) {
buf.Append('-');
AppendSerializedUnicodePoint(max, buf);
}
buf.AppendLiteral(", ");
}
buf.Truncate(buf.Length() - 2); // remove the last comma-space
CopyASCIItoUTF16(buf, aResult);
}
// Mapping from nsCSSFontDesc codes to nsCSSFontFaceStyleDecl fields.
// Keep this in sync with enum nsCSSFontDesc in nsCSSProperty.h.
nsCSSValue nsCSSFontFaceStyleDecl::* const
nsCSSFontFaceStyleDecl::Fields[] = {
&nsCSSFontFaceStyleDecl::mFamily,
&nsCSSFontFaceStyleDecl::mStyle,
&nsCSSFontFaceStyleDecl::mWeight,
&nsCSSFontFaceStyleDecl::mStretch,
&nsCSSFontFaceStyleDecl::mSrc,
&nsCSSFontFaceStyleDecl::mUnicodeRange,
&nsCSSFontFaceStyleDecl::mFontFeatureSettings,
&nsCSSFontFaceStyleDecl::mFontLanguageOverride
};
DOMCI_DATA(CSSFontFaceStyleDecl, nsCSSFontFaceStyleDecl)
// QueryInterface implementation for nsCSSFontFaceStyleDecl
NS_INTERFACE_MAP_BEGIN(nsCSSFontFaceStyleDecl)
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSStyleDeclaration)
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(CSSFontFaceStyleDecl)
NS_INTERFACE_MAP_END
NS_IMPL_ADDREF_USING_AGGREGATOR(nsCSSFontFaceStyleDecl, ContainingRule())
NS_IMPL_RELEASE_USING_AGGREGATOR(nsCSSFontFaceStyleDecl, ContainingRule())
// helper for string GetPropertyValue and RemovePropertyValue
nsresult
nsCSSFontFaceStyleDecl::GetPropertyValue(nsCSSFontDesc aFontDescID,
nsAString & aResult NS_OUTPARAM) const
{
NS_ENSURE_ARG_RANGE(aFontDescID, eCSSFontDesc_UNKNOWN,
eCSSFontDesc_COUNT - 1);
aResult.Truncate();
if (aFontDescID == eCSSFontDesc_UNKNOWN)
return NS_OK;
const nsCSSValue& val = this->*nsCSSFontFaceStyleDecl::Fields[aFontDescID];
if (val.GetUnit() == eCSSUnit_Null) {
// Avoid having to check no-value in the Family and Src cases below.
return NS_OK;
}
switch (aFontDescID) {
case eCSSFontDesc_Family: {
// we don't use nsCSSValue::AppendToString here because it doesn't
// canonicalize the way we want, and anyway it's overkill when
// we know we have eCSSUnit_String
NS_ASSERTION(val.GetUnit() == eCSSUnit_String, "unexpected unit");
nsDependentString family(val.GetStringBufferValue());
nsStyleUtil::AppendEscapedCSSString(family, aResult);
return NS_OK;
}
case eCSSFontDesc_Style:
val.AppendToString(eCSSProperty_font_style, aResult);
return NS_OK;
case eCSSFontDesc_Weight:
val.AppendToString(eCSSProperty_font_weight, aResult);
return NS_OK;
case eCSSFontDesc_Stretch:
val.AppendToString(eCSSProperty_font_stretch, aResult);
return NS_OK;
case eCSSFontDesc_FontFeatureSettings:
val.AppendToString(eCSSProperty_font_feature_settings, aResult);
return NS_OK;
case eCSSFontDesc_FontLanguageOverride:
val.AppendToString(eCSSProperty_font_language_override, aResult);
return NS_OK;
case eCSSFontDesc_Src:
AppendSerializedFontSrc(val, aResult);
return NS_OK;
case eCSSFontDesc_UnicodeRange:
AppendSerializedUnicodeRange(val, aResult);
return NS_OK;
case eCSSFontDesc_UNKNOWN:
case eCSSFontDesc_COUNT:
;
}
NS_NOTREACHED("nsCSSFontFaceStyleDecl::GetPropertyValue: "
"out-of-range value got to the switch");
return NS_ERROR_INVALID_ARG;
}
// attribute DOMString cssText;
NS_IMETHODIMP
nsCSSFontFaceStyleDecl::GetCssText(nsAString & aCssText)
{
nsAutoString descStr;
aCssText.Truncate();
for (nsCSSFontDesc id = nsCSSFontDesc(eCSSFontDesc_UNKNOWN + 1);
id < eCSSFontDesc_COUNT;
id = nsCSSFontDesc(id + 1)) {
if ((this->*nsCSSFontFaceStyleDecl::Fields[id]).GetUnit()
!= eCSSUnit_Null &&
NS_SUCCEEDED(GetPropertyValue(id, descStr))) {
NS_ASSERTION(descStr.Length() > 0,
"GetCssText: non-null unit, empty property value");
aCssText.AppendLiteral(" ");
aCssText.AppendASCII(nsCSSProps::GetStringValue(id).get());
aCssText.AppendLiteral(": ");
aCssText.Append(descStr);
aCssText.AppendLiteral(";\n");
}
}
return NS_OK;
}
NS_IMETHODIMP
nsCSSFontFaceStyleDecl::SetCssText(const nsAString & aCssText)
{
return NS_ERROR_NOT_IMPLEMENTED; // bug 443978
}
// DOMString getPropertyValue (in DOMString propertyName);
NS_IMETHODIMP
nsCSSFontFaceStyleDecl::GetPropertyValue(const nsAString & propertyName,
nsAString & aResult NS_OUTPARAM)
{
return GetPropertyValue(nsCSSProps::LookupFontDesc(propertyName), aResult);
}
// nsIDOMCSSValue getPropertyCSSValue (in DOMString propertyName);
NS_IMETHODIMP
nsCSSFontFaceStyleDecl::GetPropertyCSSValue(const nsAString & propertyName,
nsIDOMCSSValue **aResult NS_OUTPARAM)
{
// ??? nsDOMCSSDeclaration returns null/NS_OK, but that seems wrong.
return NS_ERROR_NOT_IMPLEMENTED;
}
// DOMString removeProperty (in DOMString propertyName) raises (DOMException);
NS_IMETHODIMP
nsCSSFontFaceStyleDecl::RemoveProperty(const nsAString & propertyName,
nsAString & aResult NS_OUTPARAM)
{
nsCSSFontDesc descID = nsCSSProps::LookupFontDesc(propertyName);
NS_ASSERTION(descID >= eCSSFontDesc_UNKNOWN &&
descID < eCSSFontDesc_COUNT,
"LookupFontDesc returned value out of range");
if (descID == eCSSFontDesc_UNKNOWN) {
aResult.Truncate();
} else {
nsresult rv = GetPropertyValue(descID, aResult);
NS_ENSURE_SUCCESS(rv, rv);
(this->*nsCSSFontFaceStyleDecl::Fields[descID]).Reset();
}
return NS_OK;
}
// DOMString getPropertyPriority (in DOMString propertyName);
NS_IMETHODIMP
nsCSSFontFaceStyleDecl::GetPropertyPriority(const nsAString & propertyName,
nsAString & aResult NS_OUTPARAM)
{
// font descriptors do not have priorities at present
aResult.Truncate();
return NS_OK;
}
// void setProperty (in DOMString propertyName, in DOMString value,
// in DOMString priority) raises (DOMException);
NS_IMETHODIMP
nsCSSFontFaceStyleDecl::SetProperty(const nsAString & propertyName,
const nsAString & value,
const nsAString & priority)
{
return NS_ERROR_NOT_IMPLEMENTED; // bug 443978
}
// readonly attribute unsigned long length;
NS_IMETHODIMP
nsCSSFontFaceStyleDecl::GetLength(PRUint32 *aLength)
{
PRUint32 len = 0;
for (nsCSSFontDesc id = nsCSSFontDesc(eCSSFontDesc_UNKNOWN + 1);
id < eCSSFontDesc_COUNT;
id = nsCSSFontDesc(id + 1))
if ((this->*nsCSSFontFaceStyleDecl::Fields[id]).GetUnit() != eCSSUnit_Null)
len++;
*aLength = len;
return NS_OK;
}
// DOMString item (in unsigned long index);
NS_IMETHODIMP
nsCSSFontFaceStyleDecl::Item(PRUint32 index, nsAString & aResult NS_OUTPARAM)
{
PRInt32 nset = -1;
for (nsCSSFontDesc id = nsCSSFontDesc(eCSSFontDesc_UNKNOWN + 1);
id < eCSSFontDesc_COUNT;
id = nsCSSFontDesc(id + 1)) {
if ((this->*nsCSSFontFaceStyleDecl::Fields[id]).GetUnit()
!= eCSSUnit_Null) {
nset++;
if (nset == PRInt32(index)) {
aResult.AssignASCII(nsCSSProps::GetStringValue(id).get());
return NS_OK;
}
}
}
aResult.Truncate();
return NS_OK;
}
// readonly attribute nsIDOMCSSRule parentRule;
NS_IMETHODIMP
nsCSSFontFaceStyleDecl::GetParentRule(nsIDOMCSSRule** aParentRule)
{
return ContainingRule()->GetDOMRule(aParentRule);
}
// -------------------------------------------
// nsCSSFontFaceRule
//
/* virtual */ already_AddRefed<nsICSSRule>
nsCSSFontFaceRule::Clone() const
{
nsCOMPtr<nsICSSRule> clone = new nsCSSFontFaceRule(*this);
return clone.forget();
}
NS_IMPL_ADDREF_INHERITED(nsCSSFontFaceRule, css::Rule)
NS_IMPL_RELEASE_INHERITED(nsCSSFontFaceRule, css::Rule)
DOMCI_DATA(CSSFontFaceRule, nsCSSFontFaceRule)
// QueryInterface implementation for nsCSSFontFaceRule
NS_INTERFACE_MAP_BEGIN(nsCSSFontFaceRule)
NS_INTERFACE_MAP_ENTRY(nsICSSRule)
NS_INTERFACE_MAP_ENTRY(nsIStyleRule)
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSFontFaceRule)
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRule)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsICSSRule)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(CSSFontFaceRule)
NS_INTERFACE_MAP_END
IMPL_STYLE_RULE_INHERIT(nsCSSFontFaceRule, Rule)
#ifdef DEBUG
void
nsCSSFontFaceRule::List(FILE* out, PRInt32 aIndent) const
{
nsCString baseInd, descInd;
for (PRInt32 indent = aIndent; --indent >= 0; ) {
baseInd.AppendLiteral(" ");
descInd.AppendLiteral(" ");
}
descInd.AppendLiteral(" ");
nsString descStr;
fprintf(out, "%s@font-face {\n", baseInd.get());
for (nsCSSFontDesc id = nsCSSFontDesc(eCSSFontDesc_UNKNOWN + 1);
id < eCSSFontDesc_COUNT;
id = nsCSSFontDesc(id + 1))
if ((mDecl.*nsCSSFontFaceStyleDecl::Fields[id]).GetUnit()
!= eCSSUnit_Null) {
if (NS_FAILED(mDecl.GetPropertyValue(id, descStr)))
descStr.AssignLiteral("#<serialization error>");
else if (descStr.Length() == 0)
descStr.AssignLiteral("#<serialization missing>");
fprintf(out, "%s%s: %s\n",
descInd.get(), nsCSSProps::GetStringValue(id).get(),
NS_ConvertUTF16toUTF8(descStr).get());
}
fprintf(out, "%s}\n", baseInd.get());
}
#endif
/* virtual */ PRInt32
nsCSSFontFaceRule::GetType() const
{
return nsICSSRule::FONT_FACE_RULE;
}
NS_IMETHODIMP
nsCSSFontFaceRule::GetType(PRUint16* aType)
{
*aType = nsIDOMCSSRule::FONT_FACE_RULE;
return NS_OK;
}
NS_IMETHODIMP
nsCSSFontFaceRule::GetCssText(nsAString& aCssText)
{
nsAutoString propText;
mDecl.GetCssText(propText);
aCssText.AssignLiteral("@font-face {\n");
aCssText.Append(propText);
aCssText.Append('}');
return NS_OK;
}
NS_IMETHODIMP
nsCSSFontFaceRule::SetCssText(const nsAString& aCssText)
{
return NS_ERROR_NOT_IMPLEMENTED; // bug 443978
}
NS_IMETHODIMP
nsCSSFontFaceRule::GetParentStyleSheet(nsIDOMCSSStyleSheet** aSheet)
{
NS_IF_ADDREF(*aSheet = mSheet);
return NS_OK;
}
NS_IMETHODIMP
nsCSSFontFaceRule::GetParentRule(nsIDOMCSSRule** aParentRule)
{
if (mParentRule) {
return mParentRule->GetDOMRule(aParentRule);
}
*aParentRule = nsnull;
return NS_OK;
}
NS_IMETHODIMP
nsCSSFontFaceRule::GetStyle(nsIDOMCSSStyleDeclaration** aStyle)
{
NS_IF_ADDREF(*aStyle = &mDecl);
return NS_OK;
}
// Arguably these should forward to nsCSSFontFaceStyleDecl methods.
void
nsCSSFontFaceRule::SetDesc(nsCSSFontDesc aDescID, nsCSSValue const & aValue)
{
NS_PRECONDITION(aDescID > eCSSFontDesc_UNKNOWN &&
aDescID < eCSSFontDesc_COUNT,
"aDescID out of range in nsCSSFontFaceRule::SetDesc");
mDecl.*nsCSSFontFaceStyleDecl::Fields[aDescID] = aValue;
}
void
nsCSSFontFaceRule::GetDesc(nsCSSFontDesc aDescID, nsCSSValue & aValue)
{
NS_PRECONDITION(aDescID > eCSSFontDesc_UNKNOWN &&
aDescID < eCSSFontDesc_COUNT,
"aDescID out of range in nsCSSFontFaceRule::GetDesc");
aValue = mDecl.*nsCSSFontFaceStyleDecl::Fields[aDescID];
}
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