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https://gitlab.winehq.org/wine/wine-gecko.git
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91 lines
2.4 KiB
C++
91 lines
2.4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "LogModulePrefWatcher.h"
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#include "mozilla/Logging.h"
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#include "mozilla/Preferences.h"
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#include "nsString.h"
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static const char kLoggingPrefPrefix[] = "logging.";
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namespace mozilla {
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NS_IMPL_ISUPPORTS(LogModulePrefWatcher, nsIObserver)
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/**
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* Loads the log level from the given pref and updates the corresponding
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* LogModule.
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*/
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void
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LoadPrefValue(const char* aName)
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{
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LogLevel logLevel = LogLevel::Disabled;
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int32_t prefLevel = 0;
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nsAutoCString prefStr;
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if (Preferences::GetInt(aName, &prefLevel) == NS_OK) {
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logLevel = ToLogLevel(prefLevel);
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} else if (Preferences::GetCString(aName, &prefStr) == NS_OK) {
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if (prefStr.LowerCaseEqualsLiteral("error")) {
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logLevel = LogLevel::Error;
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} else if (prefStr.LowerCaseEqualsLiteral("warning")) {
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logLevel = LogLevel::Warning;
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} else if (prefStr.LowerCaseEqualsLiteral("info")) {
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logLevel = LogLevel::Info;
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} else if (prefStr.LowerCaseEqualsLiteral("debug")) {
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logLevel = LogLevel::Debug;
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} else if (prefStr.LowerCaseEqualsLiteral("verbose")) {
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logLevel = LogLevel::Verbose;
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}
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}
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const char* moduleName = aName + strlen(kLoggingPrefPrefix);
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LogModule::Get(moduleName)->SetLevel(logLevel);
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}
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void
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LoadExistingPrefs()
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{
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uint32_t count;
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char** names;
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nsresult rv = Preferences::GetRootBranch()->
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GetChildList(kLoggingPrefPrefix, &count, &names);
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if (NS_SUCCEEDED(rv) && count) {
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for (size_t i = 0; i < count; i++) {
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LoadPrefValue(names[i]);
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}
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NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(count, names);
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}
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}
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LogModulePrefWatcher::LogModulePrefWatcher()
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{
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}
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void
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LogModulePrefWatcher::RegisterPrefWatcher()
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{
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RefPtr<LogModulePrefWatcher> prefWatcher = new LogModulePrefWatcher();
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Preferences::AddStrongObserver(prefWatcher, kLoggingPrefPrefix);
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LoadExistingPrefs();
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}
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NS_IMETHODIMP
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LogModulePrefWatcher::Observe(nsISupports* aSubject, const char* aTopic,
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const char16_t* aData)
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{
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if (strcmp(NS_PREFBRANCH_PREFCHANGE_TOPIC_ID, aTopic) == 0) {
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NS_LossyConvertUTF16toASCII prefName(aData);
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LoadPrefValue(prefName.get());
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}
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return NS_OK;
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}
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} // namespace mozilla
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