зеркало из https://github.com/mozilla/gecko-dev.git
401 строка
13 KiB
C++
401 строка
13 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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#ifndef mozilla_dom_Console_h
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#define mozilla_dom_Console_h
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#include "mozilla/dom/BindingDeclarations.h"
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#include "mozilla/ErrorResult.h"
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#include "mozilla/JSObjectHolder.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsDataHashtable.h"
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#include "nsHashKeys.h"
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#include "nsIObserver.h"
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#include "nsWeakReference.h"
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#include "nsDOMNavigationTiming.h"
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#include "nsPIDOMWindow.h"
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class nsIConsoleAPIStorage;
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class nsIPrincipal;
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namespace mozilla {
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namespace dom {
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class AnyCallback;
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class ConsoleCallData;
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class ConsoleRunnable;
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class ConsoleCallDataRunnable;
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class ConsoleProfileRunnable;
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struct ConsoleStackEntry;
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class Console final : public nsIObserver
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, public nsSupportsWeakReference
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{
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public:
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(Console, nsIObserver)
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NS_DECL_NSIOBSERVER
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static already_AddRefed<Console>
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Create(nsPIDOMWindowInner* aWindow, ErrorResult& aRv);
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// WebIDL methods
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nsPIDOMWindowInner* GetParentObject() const
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{
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return mWindow;
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}
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static void
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Log(const GlobalObject& aGlobal, const Sequence<JS::Value>& aData);
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static void
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Info(const GlobalObject& aGlobal, const Sequence<JS::Value>& aData);
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static void
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Warn(const GlobalObject& aGlobal, const Sequence<JS::Value>& aData);
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static void
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Error(const GlobalObject& aGlobal, const Sequence<JS::Value>& aData);
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static void
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Exception(const GlobalObject& aGlobal, const Sequence<JS::Value>& aData);
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static void
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Debug(const GlobalObject& aGlobal, const Sequence<JS::Value>& aData);
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static void
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Table(const GlobalObject& aGlobal, const Sequence<JS::Value>& aData);
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static void
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Trace(const GlobalObject& aGlobal);
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static void
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Dir(const GlobalObject& aGlobal, const Sequence<JS::Value>& aData);
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static void
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Dirxml(const GlobalObject& aGlobal, const Sequence<JS::Value>& aData);
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static void
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Group(const GlobalObject& aGlobal, const Sequence<JS::Value>& aData);
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static void
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GroupCollapsed(const GlobalObject& aGlobal, const Sequence<JS::Value>& aData);
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static void
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GroupEnd(const GlobalObject& aGlobal, const Sequence<JS::Value>& aData);
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static void
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Time(const GlobalObject& aGlobal, const JS::Handle<JS::Value> aTime);
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static void
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TimeEnd(const GlobalObject& aGlobal, const JS::Handle<JS::Value> aTime);
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static void
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TimeStamp(const GlobalObject& aGlobal, const JS::Handle<JS::Value> aData);
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static void
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Profile(const GlobalObject& aGlobal, const Sequence<JS::Value>& aData);
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static void
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ProfileEnd(const GlobalObject& aGlobal, const Sequence<JS::Value>& aData);
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static void
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Assert(const GlobalObject& aGlobal, bool aCondition,
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const Sequence<JS::Value>& aData);
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static void
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Count(const GlobalObject& aGlobal, const Sequence<JS::Value>& aData);
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static void
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Clear(const GlobalObject& aGlobal, const Sequence<JS::Value>& aData);
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static void
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NoopMethod(const GlobalObject& aGlobal);
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void
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ClearStorage();
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void
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RetrieveConsoleEvents(JSContext* aCx, nsTArray<JS::Value>& aEvents,
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ErrorResult& aRv);
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void
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SetConsoleEventHandler(AnyCallback* aHandler);
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private:
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explicit Console(nsPIDOMWindowInner* aWindow);
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~Console();
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void
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Initialize(ErrorResult& aRv);
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void
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Shutdown();
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enum MethodName
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{
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MethodLog,
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MethodInfo,
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MethodWarn,
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MethodError,
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MethodException,
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MethodDebug,
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MethodTable,
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MethodTrace,
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MethodDir,
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MethodDirxml,
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MethodGroup,
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MethodGroupCollapsed,
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MethodGroupEnd,
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MethodTime,
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MethodTimeEnd,
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MethodTimeStamp,
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MethodAssert,
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MethodCount,
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MethodClear
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};
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static already_AddRefed<Console>
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GetConsole(const GlobalObject& aGlobal);
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static Console*
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GetConsoleInternal(const GlobalObject& aGlobal, ErrorResult &aRv);
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static void
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ProfileMethod(const GlobalObject& aGlobal, const nsAString& aAction,
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const Sequence<JS::Value>& aData);
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void
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ProfileMethodInternal(JSContext* aCx, const nsAString& aAction,
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const Sequence<JS::Value>& aData);
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static void
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Method(const GlobalObject& aGlobal, MethodName aName,
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const nsAString& aString, const Sequence<JS::Value>& aData);
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void
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MethodInternal(JSContext* aCx, MethodName aName,
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const nsAString& aString, const Sequence<JS::Value>& aData);
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// This method must receive aCx and aArguments in the same JSCompartment.
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void
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ProcessCallData(JSContext* aCx,
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ConsoleCallData* aData,
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const Sequence<JS::Value>& aArguments);
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void
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StoreCallData(ConsoleCallData* aData);
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void
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UnstoreCallData(ConsoleCallData* aData);
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// Read in Console.cpp how this method is used.
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void
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ReleaseCallData(ConsoleCallData* aCallData);
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// aCx and aArguments must be in the same JS compartment.
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void
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NotifyHandler(JSContext* aCx,
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const Sequence<JS::Value>& aArguments,
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ConsoleCallData* aData) const;
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// PopulateConsoleNotificationInTheTargetScope receives aCx and aArguments in
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// the same JS compartment and populates the ConsoleEvent object (aValue) in
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// the aTargetScope.
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// aTargetScope can be:
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// - the system-principal scope when we want to dispatch the ConsoleEvent to
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// nsIConsoleAPIStorage (See the comment in Console.cpp about the use of
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// xpc::PrivilegedJunkScope()
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// - the mConsoleEventNotifier->Callable() scope when we want to notify this
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// handler about a new ConsoleEvent.
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// - It can be the global from the JSContext when RetrieveConsoleEvents is
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// called.
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bool
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PopulateConsoleNotificationInTheTargetScope(JSContext* aCx,
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const Sequence<JS::Value>& aArguments,
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JSObject* aTargetScope,
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JS::MutableHandle<JS::Value> aValue,
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ConsoleCallData* aData) const;
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// If the first JS::Value of the array is a string, this method uses it to
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// format a string. The supported sequences are:
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// %s - string
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// %d,%i - integer
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// %f - double
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// %o,%O - a JS object.
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// %c - style string.
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// The output is an array where any object is a separated item, the rest is
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// unified in a format string.
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// Example if the input is:
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// "string: %s, integer: %d, object: %o, double: %d", 's', 1, window, 0.9
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// The output will be:
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// [ "string: s, integer: 1, object: ", window, ", double: 0.9" ]
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//
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// The aStyles array is populated with the style strings that the function
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// finds based the format string. The index of the styles matches the indexes
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// of elements that need the custom styling from aSequence. For elements with
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// no custom styling the array is padded with null elements.
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bool
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ProcessArguments(JSContext* aCx, const Sequence<JS::Value>& aData,
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Sequence<JS::Value>& aSequence,
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Sequence<nsString>& aStyles) const;
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void
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MakeFormatString(nsCString& aFormat, int32_t aInteger, int32_t aMantissa,
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char aCh) const;
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// Stringify and Concat all the JS::Value in a single string using ' ' as
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// separator.
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void
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ComposeGroupName(JSContext* aCx, const Sequence<JS::Value>& aData,
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nsAString& aName) const;
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// StartTimer is called on the owning thread and populates aTimerLabel and
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// aTimerValue. It returns false if a JS exception is thrown or if
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// the max number of timers is reached.
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// * aCx - the JSContext rooting aName.
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// * aName - this is (should be) the name of the timer as JS::Value.
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// * aTimestamp - the monotonicTimer for this context taken from
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// performance.now().
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// * aTimerLabel - This label will be populated with the aName converted to a
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// string.
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// * aTimerValue - the StartTimer value stored into (or taken from)
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// mTimerRegistry.
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bool
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StartTimer(JSContext* aCx, const JS::Value& aName,
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DOMHighResTimeStamp aTimestamp,
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nsAString& aTimerLabel,
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DOMHighResTimeStamp* aTimerValue);
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// CreateStartTimerValue generates a ConsoleTimerStart dictionary exposed as
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// JS::Value. If aTimerStatus is false, it generates a ConsoleTimerError
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// instead. It's called only after the execution StartTimer on the owning
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// thread.
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// * aCx - this is the context that will root the returned value.
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// * aTimerLabel - this label must be what StartTimer received as aTimerLabel.
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// * aTimerStatus - the return value of StartTimer.
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JS::Value
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CreateStartTimerValue(JSContext* aCx, const nsAString& aTimerLabel,
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bool aTimerStatus) const;
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// StopTimer follows the same pattern as StartTimer: it runs on the
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// owning thread and populates aTimerLabel and aTimerDuration, used by
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// CreateStopTimerValue. It returns false if a JS exception is thrown or if
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// the aName timer doesn't exist in the mTimerRegistry.
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// * aCx - the JSContext rooting aName.
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// * aName - this is (should be) the name of the timer as JS::Value.
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// * aTimestamp - the monotonicTimer for this context taken from
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// performance.now().
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// * aTimerLabel - This label will be populated with the aName converted to a
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// string.
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// * aTimerDuration - the difference between aTimestamp and when the timer
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// started (see StartTimer).
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bool
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StopTimer(JSContext* aCx, const JS::Value& aName,
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DOMHighResTimeStamp aTimestamp,
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nsAString& aTimerLabel,
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double* aTimerDuration);
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// This method generates a ConsoleTimerEnd dictionary exposed as JS::Value, or
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// a ConsoleTimerError dictionary if aTimerStatus is false. See StopTimer.
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// * aCx - this is the context that will root the returned value.
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// * aTimerLabel - this label must be what StopTimer received as aTimerLabel.
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// * aTimerDuration - this is what StopTimer received as aTimerDuration
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// * aTimerStatus - the return value of StopTimer.
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JS::Value
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CreateStopTimerValue(JSContext* aCx, const nsAString& aTimerLabel,
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double aTimerDuration,
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bool aTimerStatus) const;
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// The method populates a Sequence from an array of JS::Value.
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bool
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ArgumentsToValueList(const Sequence<JS::Value>& aData,
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Sequence<JS::Value>& aSequence) const;
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// This method follows the same pattern as StartTimer: its runs on the owning
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// thread and populate aCountLabel, used by CreateCounterValue. Returns
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// MAX_PAGE_COUNTERS in case of error, otherwise the incremented counter
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// value.
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// * aCx - the JSContext rooting aData.
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// * aFrame - the first frame of ConsoleCallData.
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// * aData - the arguments received by the console.count() method.
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// * aCountLabel - the label that will be populated by this method.
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uint32_t
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IncreaseCounter(JSContext* aCx, const ConsoleStackEntry& aFrame,
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const Sequence<JS::Value>& aData,
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nsAString& aCountLabel);
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// This method generates a ConsoleCounter dictionary as JS::Value. If
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// aCountValue is == MAX_PAGE_COUNTERS it generates a ConsoleCounterError
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// instead. See IncreaseCounter.
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// * aCx - this is the context that will root the returned value.
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// * aCountLabel - this label must be what IncreaseCounter received as
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// aTimerLabel.
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// * aCountValue - the return value of IncreaseCounter.
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JS::Value
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CreateCounterValue(JSContext* aCx, const nsAString& aCountLabel,
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uint32_t aCountValue) const;
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bool
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ShouldIncludeStackTrace(MethodName aMethodName) const;
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JSObject*
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GetOrCreateSandbox(JSContext* aCx, nsIPrincipal* aPrincipal);
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void
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AssertIsOnOwningThread() const;
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bool
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IsShuttingDown() const;
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// All these nsCOMPtr are touched on main thread only.
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nsCOMPtr<nsPIDOMWindowInner> mWindow;
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nsCOMPtr<nsIConsoleAPIStorage> mStorage;
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RefPtr<JSObjectHolder> mSandbox;
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// Touched on the owner thread.
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nsDataHashtable<nsStringHashKey, DOMHighResTimeStamp> mTimerRegistry;
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nsDataHashtable<nsStringHashKey, uint32_t> mCounterRegistry;
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nsTArray<RefPtr<ConsoleCallData>> mCallDataStorage;
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// This array is used in a particular corner-case where:
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// 1. we are in a worker thread
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// 2. we have more than STORAGE_MAX_EVENTS
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// 3. but the main-thread ConsoleCallDataRunnable of the first one is still
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// running (this means that something very bad is happening on the
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// main-thread).
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// When this happens we want to keep the ConsoleCallData alive for traceing
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// its JSValues also if 'officially' this ConsoleCallData must be removed from
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// the storage.
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nsTArray<RefPtr<ConsoleCallData>> mCallDataStoragePending;
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RefPtr<AnyCallback> mConsoleEventNotifier;
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#ifdef DEBUG
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PRThread* mOwningThread;
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#endif
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uint64_t mOuterID;
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uint64_t mInnerID;
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enum {
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eUnknown,
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eInitialized,
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eShuttingDown
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} mStatus;
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friend class ConsoleCallData;
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friend class ConsoleRunnable;
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friend class ConsoleCallDataRunnable;
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friend class ConsoleProfileRunnable;
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};
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} // namespace dom
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} // namespace mozilla
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#endif /* mozilla_dom_Console_h */
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