mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-09-10 11:54:40 +00:00
356 lines
9.9 KiB
C++
356 lines
9.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
/* implementation of interface for managing user and user-agent style sheets */
|
|
|
|
#include "nsStyleSheetService.h"
|
|
#include "mozilla/CSSStyleSheet.h"
|
|
#include "mozilla/MemoryReporting.h"
|
|
#include "mozilla/unused.h"
|
|
#include "mozilla/css/Loader.h"
|
|
#include "mozilla/dom/ContentParent.h"
|
|
#include "mozilla/ipc/URIUtils.h"
|
|
#include "nsIURI.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "nsICategoryManager.h"
|
|
#include "nsISupportsPrimitives.h"
|
|
#include "nsISimpleEnumerator.h"
|
|
#include "nsNetUtil.h"
|
|
#include "nsIObserverService.h"
|
|
#include "nsLayoutStatics.h"
|
|
|
|
using namespace mozilla;
|
|
|
|
nsStyleSheetService *nsStyleSheetService::gInstance = nullptr;
|
|
|
|
nsStyleSheetService::nsStyleSheetService()
|
|
{
|
|
PR_STATIC_ASSERT(0 == AGENT_SHEET && 1 == USER_SHEET && 2 == AUTHOR_SHEET);
|
|
NS_ASSERTION(!gInstance, "Someone is using CreateInstance instead of GetService");
|
|
gInstance = this;
|
|
nsLayoutStatics::AddRef();
|
|
}
|
|
|
|
nsStyleSheetService::~nsStyleSheetService()
|
|
{
|
|
UnregisterWeakMemoryReporter(this);
|
|
|
|
gInstance = nullptr;
|
|
nsLayoutStatics::Release();
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS(
|
|
nsStyleSheetService, nsIStyleSheetService, nsIMemoryReporter)
|
|
|
|
void
|
|
nsStyleSheetService::RegisterFromEnumerator(nsICategoryManager *aManager,
|
|
const char *aCategory,
|
|
nsISimpleEnumerator *aEnumerator,
|
|
uint32_t aSheetType)
|
|
{
|
|
if (!aEnumerator)
|
|
return;
|
|
|
|
bool hasMore;
|
|
while (NS_SUCCEEDED(aEnumerator->HasMoreElements(&hasMore)) && hasMore) {
|
|
nsCOMPtr<nsISupports> element;
|
|
if (NS_FAILED(aEnumerator->GetNext(getter_AddRefs(element))))
|
|
break;
|
|
|
|
nsCOMPtr<nsISupportsCString> icStr = do_QueryInterface(element);
|
|
NS_ASSERTION(icStr,
|
|
"category manager entries must be nsISupportsCStrings");
|
|
|
|
nsAutoCString name;
|
|
icStr->GetData(name);
|
|
|
|
nsXPIDLCString spec;
|
|
aManager->GetCategoryEntry(aCategory, name.get(), getter_Copies(spec));
|
|
|
|
nsCOMPtr<nsIURI> uri;
|
|
NS_NewURI(getter_AddRefs(uri), spec);
|
|
if (uri)
|
|
LoadAndRegisterSheetInternal(uri, aSheetType);
|
|
}
|
|
}
|
|
|
|
int32_t
|
|
nsStyleSheetService::FindSheetByURI(const nsTArray<RefPtr<CSSStyleSheet>>& aSheets,
|
|
nsIURI* aSheetURI)
|
|
{
|
|
for (int32_t i = aSheets.Length() - 1; i >= 0; i-- ) {
|
|
bool bEqual;
|
|
nsIURI* uri = aSheets[i]->GetSheetURI();
|
|
if (uri
|
|
&& NS_SUCCEEDED(uri->Equals(aSheetURI, &bEqual))
|
|
&& bEqual) {
|
|
return i;
|
|
}
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
nsresult
|
|
nsStyleSheetService::Init()
|
|
{
|
|
// If you make changes here, consider whether
|
|
// SVGDocument::EnsureNonSVGUserAgentStyleSheetsLoaded should be updated too.
|
|
|
|
// Child processes get their style sheets from the ContentParent.
|
|
if (XRE_IsContentProcess()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// Enumerate all of the style sheet URIs registered in the category
|
|
// manager and load them.
|
|
|
|
nsCOMPtr<nsICategoryManager> catMan =
|
|
do_GetService(NS_CATEGORYMANAGER_CONTRACTID);
|
|
|
|
NS_ENSURE_TRUE(catMan, NS_ERROR_OUT_OF_MEMORY);
|
|
|
|
nsCOMPtr<nsISimpleEnumerator> sheets;
|
|
catMan->EnumerateCategory("agent-style-sheets", getter_AddRefs(sheets));
|
|
RegisterFromEnumerator(catMan, "agent-style-sheets", sheets, AGENT_SHEET);
|
|
|
|
catMan->EnumerateCategory("user-style-sheets", getter_AddRefs(sheets));
|
|
RegisterFromEnumerator(catMan, "user-style-sheets", sheets, USER_SHEET);
|
|
|
|
catMan->EnumerateCategory("author-style-sheets", getter_AddRefs(sheets));
|
|
RegisterFromEnumerator(catMan, "author-style-sheets", sheets, AUTHOR_SHEET);
|
|
|
|
RegisterWeakMemoryReporter(this);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsStyleSheetService::LoadAndRegisterSheet(nsIURI *aSheetURI,
|
|
uint32_t aSheetType)
|
|
{
|
|
nsresult rv = LoadAndRegisterSheetInternal(aSheetURI, aSheetType);
|
|
if (NS_SUCCEEDED(rv)) {
|
|
const char* message;
|
|
switch (aSheetType) {
|
|
case AGENT_SHEET:
|
|
message = "agent-sheet-added";
|
|
break;
|
|
case USER_SHEET:
|
|
message = "user-sheet-added";
|
|
break;
|
|
case AUTHOR_SHEET:
|
|
message = "author-sheet-added";
|
|
break;
|
|
default:
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
nsCOMPtr<nsIObserverService> serv = services::GetObserverService();
|
|
if (serv) {
|
|
// We're guaranteed that the new sheet is the last sheet in
|
|
// mSheets[aSheetType]
|
|
CSSStyleSheet* sheet = mSheets[aSheetType].LastElement();
|
|
serv->NotifyObservers(NS_ISUPPORTS_CAST(nsIDOMCSSStyleSheet*, sheet),
|
|
message, nullptr);
|
|
}
|
|
|
|
if (XRE_IsParentProcess()) {
|
|
nsTArray<dom::ContentParent*> children;
|
|
dom::ContentParent::GetAll(children);
|
|
|
|
if (children.IsEmpty()) {
|
|
return rv;
|
|
}
|
|
|
|
mozilla::ipc::URIParams uri;
|
|
SerializeURI(aSheetURI, uri);
|
|
|
|
for (uint32_t i = 0; i < children.Length(); i++) {
|
|
Unused << children[i]->SendLoadAndRegisterSheet(uri, aSheetType);
|
|
}
|
|
}
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
nsresult
|
|
nsStyleSheetService::LoadAndRegisterSheetInternal(nsIURI *aSheetURI,
|
|
uint32_t aSheetType)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aSheetURI);
|
|
|
|
css::SheetParsingMode parsingMode;
|
|
switch (aSheetType) {
|
|
case AGENT_SHEET:
|
|
parsingMode = css::eAgentSheetFeatures;
|
|
break;
|
|
|
|
case USER_SHEET:
|
|
parsingMode = css::eUserSheetFeatures;
|
|
break;
|
|
|
|
case AUTHOR_SHEET:
|
|
parsingMode = css::eAuthorSheetFeatures;
|
|
break;
|
|
|
|
default:
|
|
NS_WARNING("invalid sheet type argument");
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
|
|
RefPtr<css::Loader> loader = new css::Loader();
|
|
|
|
RefPtr<CSSStyleSheet> sheet;
|
|
nsresult rv = loader->LoadSheetSync(aSheetURI, parsingMode, true,
|
|
getter_AddRefs(sheet));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
mSheets[aSheetType].AppendElement(sheet);
|
|
|
|
return rv;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsStyleSheetService::SheetRegistered(nsIURI *sheetURI,
|
|
uint32_t aSheetType, bool *_retval)
|
|
{
|
|
NS_ENSURE_ARG(aSheetType == AGENT_SHEET ||
|
|
aSheetType == USER_SHEET ||
|
|
aSheetType == AUTHOR_SHEET);
|
|
NS_ENSURE_ARG_POINTER(sheetURI);
|
|
NS_PRECONDITION(_retval, "Null out param");
|
|
|
|
*_retval = (FindSheetByURI(mSheets[aSheetType], sheetURI) >= 0);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsStyleSheetService::PreloadSheet(nsIURI *aSheetURI, uint32_t aSheetType,
|
|
nsIDOMStyleSheet **aSheet)
|
|
{
|
|
NS_PRECONDITION(aSheet, "Null out param");
|
|
NS_ENSURE_ARG_POINTER(aSheetURI);
|
|
css::SheetParsingMode parsingMode;
|
|
switch (aSheetType) {
|
|
case AGENT_SHEET:
|
|
parsingMode = css::eAgentSheetFeatures;
|
|
break;
|
|
|
|
case USER_SHEET:
|
|
parsingMode = css::eUserSheetFeatures;
|
|
break;
|
|
|
|
case AUTHOR_SHEET:
|
|
parsingMode = css::eAuthorSheetFeatures;
|
|
break;
|
|
|
|
default:
|
|
NS_WARNING("invalid sheet type argument");
|
|
return NS_ERROR_INVALID_ARG;
|
|
}
|
|
|
|
RefPtr<css::Loader> loader = new css::Loader();
|
|
|
|
RefPtr<CSSStyleSheet> sheet;
|
|
nsresult rv = loader->LoadSheetSync(aSheetURI, parsingMode, true,
|
|
getter_AddRefs(sheet));
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
sheet.forget(aSheet);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
nsStyleSheetService::UnregisterSheet(nsIURI *aSheetURI, uint32_t aSheetType)
|
|
{
|
|
NS_ENSURE_ARG(aSheetType == AGENT_SHEET ||
|
|
aSheetType == USER_SHEET ||
|
|
aSheetType == AUTHOR_SHEET);
|
|
NS_ENSURE_ARG_POINTER(aSheetURI);
|
|
|
|
int32_t foundIndex = FindSheetByURI(mSheets[aSheetType], aSheetURI);
|
|
NS_ENSURE_TRUE(foundIndex >= 0, NS_ERROR_INVALID_ARG);
|
|
RefPtr<CSSStyleSheet> sheet = mSheets[aSheetType][foundIndex];
|
|
mSheets[aSheetType].RemoveElementAt(foundIndex);
|
|
|
|
const char* message;
|
|
switch (aSheetType) {
|
|
case AGENT_SHEET:
|
|
message = "agent-sheet-removed";
|
|
break;
|
|
case USER_SHEET:
|
|
message = "user-sheet-removed";
|
|
break;
|
|
case AUTHOR_SHEET:
|
|
message = "author-sheet-removed";
|
|
break;
|
|
}
|
|
|
|
nsCOMPtr<nsIObserverService> serv = services::GetObserverService();
|
|
if (serv) {
|
|
serv->NotifyObservers(NS_ISUPPORTS_CAST(nsIDOMCSSStyleSheet*, sheet),
|
|
message, nullptr);
|
|
}
|
|
|
|
if (XRE_IsParentProcess()) {
|
|
nsTArray<dom::ContentParent*> children;
|
|
dom::ContentParent::GetAll(children);
|
|
|
|
if (children.IsEmpty()) {
|
|
return NS_OK;
|
|
}
|
|
|
|
mozilla::ipc::URIParams uri;
|
|
SerializeURI(aSheetURI, uri);
|
|
|
|
for (uint32_t i = 0; i < children.Length(); i++) {
|
|
Unused << children[i]->SendUnregisterSheet(uri, aSheetType);
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
//static
|
|
nsStyleSheetService *
|
|
nsStyleSheetService::GetInstance()
|
|
{
|
|
static bool first = true;
|
|
if (first) {
|
|
// make sure at first call that it's inited
|
|
nsCOMPtr<nsIStyleSheetService> dummy =
|
|
do_GetService(NS_STYLESHEETSERVICE_CONTRACTID);
|
|
first = false;
|
|
}
|
|
|
|
return gInstance;
|
|
}
|
|
|
|
MOZ_DEFINE_MALLOC_SIZE_OF(StyleSheetServiceMallocSizeOf)
|
|
|
|
NS_IMETHODIMP
|
|
nsStyleSheetService::CollectReports(nsIHandleReportCallback* aHandleReport,
|
|
nsISupports* aData, bool aAnonymize)
|
|
{
|
|
return MOZ_COLLECT_REPORT(
|
|
"explicit/layout/style-sheet-service", KIND_HEAP, UNITS_BYTES,
|
|
SizeOfIncludingThis(StyleSheetServiceMallocSizeOf),
|
|
"Memory used for style sheets held by the style sheet service.");
|
|
}
|
|
|
|
size_t
|
|
nsStyleSheetService::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
|
|
{
|
|
size_t n = aMallocSizeOf(this);
|
|
for (auto& sheetArray : mSheets) {
|
|
n += sheetArray.ShallowSizeOfExcludingThis(aMallocSizeOf);
|
|
for (CSSStyleSheet* sheet : sheetArray) {
|
|
n += sheet->SizeOfIncludingThis(aMallocSizeOf);
|
|
}
|
|
}
|
|
return n;
|
|
}
|