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Bug 1425769 - Base class for ShadowRoot and Document to manage style state

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Tag #1375
This commit is contained in:
Matt A. Tobin 2020-04-17 07:42:07 -04:00 • committed by Roy Tam
commit b8260c664a
16 changed files with 250 additions and 296 deletions
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127
dom/base/nsDocument.cpp
View file

@ -570,78 +570,6 @@ struct nsRadioGroupStruct
bool mGroupSuffersFromValueMissing;
};
nsDOMStyleSheetList::nsDOMStyleSheetList(nsIDocument *aDocument)
{
mLength = -1;
// Not reference counted to avoid circular references.
// The document will tell us when its going away.
mDocument = aDocument;
mDocument->AddObserver(this);
}
nsDOMStyleSheetList::~nsDOMStyleSheetList()
{
if (mDocument) {
mDocument->RemoveObserver(this);
}
}
NS_IMPL_ISUPPORTS_INHERITED(nsDOMStyleSheetList, StyleSheetList,
nsIDocumentObserver,
nsIMutationObserver)
uint32_t
nsDOMStyleSheetList::Length()
{
if (!mDocument) {
return 0;
}
// XXX Find the number and then cache it. We'll use the
// observer notification to figure out if new ones have
// been added or removed.
if (-1 == mLength) {
mLength = mDocument->GetNumberOfStyleSheets();
}
return mLength;
}
StyleSheet*
nsDOMStyleSheetList::IndexedGetter(uint32_t aIndex, bool& aFound)
{
if (!mDocument || aIndex >= (uint32_t)mDocument->GetNumberOfStyleSheets()) {
aFound = false;
return nullptr;
}
aFound = true;
return mDocument->GetStyleSheetAt(aIndex);
}
void
nsDOMStyleSheetList::NodeWillBeDestroyed(const nsINode *aNode)
{
mDocument = nullptr;
}
void
nsDOMStyleSheetList::StyleSheetAdded(StyleSheet* aStyleSheet,
bool aDocumentSheet)
{
if (aDocumentSheet && -1 != mLength) {
mLength++;
}
}
void
nsDOMStyleSheetList::StyleSheetRemoved(StyleSheet* aStyleSheet,
bool aDocumentSheet)
{
if (aDocumentSheet && -1 != mLength) {
mLength--;
}
}
// nsOnloadBlocker implementation
NS_IMPL_ISUPPORTS(nsOnloadBlocker, nsIRequest)
@ -1199,10 +1127,10 @@ nsDOMStyleSheetSetList::EnsureFresh()
// no document, for sure
}
int32_t count = mDocument->GetNumberOfStyleSheets();
size_t count = mDocument->SheetCount();
nsAutoString title;
for (int32_t index = 0; index < count; index++) {
StyleSheet* sheet = mDocument->GetStyleSheetAt(index);
for (size_t index = 0; index < count; index++) {
StyleSheet* sheet = mDocument->SheetAt(index);
NS_ASSERTION(sheet, "Null sheet in sheet list!");
// XXXheycam ServoStyleSheets don't expose their title yet.
if (sheet->IsServo()) {
@ -3930,24 +3858,6 @@ nsDocument::AddOnDemandBuiltInUASheet(StyleSheet* aSheet)
NotifyStyleSheetAdded(aSheet, false);
}
int32_t
nsDocument::GetNumberOfStyleSheets() const
{
return mStyleSheets.Length();
}
StyleSheet*
nsDocument::GetStyleSheetAt(int32_t aIndex) const
{
return mStyleSheets.SafeElementAt(aIndex, nullptr);
}
int32_t
nsDocument::GetIndexOfStyleSheet(const StyleSheet* aSheet) const
{
return mStyleSheets.IndexOf(aSheet);
}
void
nsDocument::AddStyleSheetToStyleSets(StyleSheet* aSheet)
{
@ -4088,9 +3998,9 @@ nsDocument::UpdateStyleSheets(nsTArray<RefPtr<StyleSheet>>& aOldSheets,
}
void
nsDocument::InsertStyleSheetAt(StyleSheet* aSheet, int32_t aIndex)
nsDocument::InsertStyleSheetAt(StyleSheet* aSheet, size_t aIndex)
{
NS_PRECONDITION(aSheet, "null ptr");
MOZ_ASSERT(aSheet);
mStyleSheets.InsertElementAt(aIndex, aSheet);
@ -5815,15 +5725,6 @@ nsDocument::GetStyleSheets(nsIDOMStyleSheetList** aStyleSheets)
return NS_OK;
}
StyleSheetList*
nsDocument::StyleSheets()
{
if (!mDOMStyleSheets) {
mDOMStyleSheets = new nsDOMStyleSheetList(this);
}
return mDOMStyleSheets;
}
NS_IMETHODIMP
nsDocument::GetMozSelectedStyleSheetSet(nsAString& aSheetSet)
{
@ -5837,10 +5738,10 @@ nsIDocument::GetSelectedStyleSheetSet(nsAString& aSheetSet)
aSheetSet.Truncate();
// Look through our sheets, find the selected set title
int32_t count = GetNumberOfStyleSheets();
size_t count = SheetCount();
nsAutoString title;
for (int32_t index = 0; index < count; index++) {
StyleSheet* sheet = GetStyleSheetAt(index);
for (size_t index = 0; index < count; index++) {
StyleSheet* sheet = SheetAt(index);
NS_ASSERTION(sheet, "Null sheet in sheet list!");
// XXXheycam Make this work with ServoStyleSheets.
@ -5957,10 +5858,10 @@ nsDocument::EnableStyleSheetsForSetInternal(const nsAString& aSheetSet,
bool aUpdateCSSLoader)
{
BeginUpdate(UPDATE_STYLE);
int32_t count = GetNumberOfStyleSheets();
size_t count = SheetCount();
nsAutoString title;
for (int32_t index = 0; index < count; index++) {
StyleSheet* sheet = GetStyleSheetAt(index);
for (size_t index = 0; index < count; index++) {
StyleSheet* sheet = SheetAt(index);
NS_ASSERTION(sheet, "Null sheet in sheet list!");
// XXXheycam Make this work with ServoStyleSheets.
@ -9668,9 +9569,9 @@ nsIDocument::CreateStaticClone(nsIDocShell* aCloneContainer)
clonedDoc->mOriginalDocument->mStaticCloneCount++;
int32_t sheetsCount = GetNumberOfStyleSheets();
for (int32_t i = 0; i < sheetsCount; ++i) {
RefPtr<StyleSheet> sheet = GetStyleSheetAt(i);
size_t sheetsCount = SheetCount();
for (size_t i = 0; i < sheetsCount; ++i) {
RefPtr<StyleSheet> sheet = SheetAt(i);
if (sheet) {
if (sheet->IsApplicable()) {
// XXXheycam Need to make ServoStyleSheet cloning work.