Source/WebCore/inspector/InjectedScriptCanvasModule.cpp

/*
 * Copyright (C) 2012 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
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 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
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 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#include "config.h"

#if ENABLE(INSPECTOR)

#include "InjectedScriptCanvasModule.h"

#include "InjectedScriptCanvasModuleSource.h"
#include "JSMainThreadExecState.h"
#include <bindings/ScriptFunctionCall.h>
#include <bindings/ScriptObject.h>
#include <inspector/InjectedScript.h>
#include <inspector/InjectedScriptManager.h>
#include <inspector/InspectorValues.h>

using Inspector::TypeBuilder::Array;
using Inspector::TypeBuilder::Canvas::ResourceId;
using Inspector::TypeBuilder::Canvas::ResourceInfo;
using Inspector::TypeBuilder::Canvas::ResourceState;
using Inspector::TypeBuilder::Canvas::TraceLog;
using Inspector::TypeBuilder::Canvas::TraceLogId;

using namespace JSC;
using namespace Inspector;

namespace WebCore {

InjectedScriptCanvasModule::InjectedScriptCanvasModule()
    : Inspector::InjectedScriptModule("InjectedScriptCanvasModule")
{
}

InjectedScriptCanvasModule InjectedScriptCanvasModule::moduleForState(InjectedScriptManager* injectedScriptManager, JSC::ExecState* scriptState)
{
    InjectedScriptCanvasModule result;
    result.ensureInjected(injectedScriptManager, scriptState);
    return result;
}

String InjectedScriptCanvasModule::source() const
{
    return String(reinterpret_cast<const char*>(InjectedScriptCanvasModuleSource_js), sizeof(InjectedScriptCanvasModuleSource_js));
}

JSC::JSValue InjectedScriptCanvasModule::host(InjectedScriptManager*, JSC::ExecState*) const
{
    return jsUndefined();
}

Deprecated::ScriptObject InjectedScriptCanvasModule::wrapCanvas2DContext(const Deprecated::ScriptObject& context)
{
    return callWrapContextFunction("wrapCanvas2DContext", context);
}

#if ENABLE(WEBGL)
Deprecated::ScriptObject InjectedScriptCanvasModule::wrapWebGLContext(const Deprecated::ScriptObject& glContext)
{
    return callWrapContextFunction("wrapWebGLContext", glContext);
}
#endif // ENABLE(WEBGL)

Deprecated::ScriptObject InjectedScriptCanvasModule::callWrapContextFunction(const String& functionName, const Deprecated::ScriptObject& context)
{
    Deprecated::ScriptFunctionCall function(injectedScriptObject(), functionName, WebCore::functionCallHandlerFromAnyThread);
    function.appendArgument(context);
    bool hadException = false;
    Deprecated::ScriptValue resultValue = callFunctionWithEvalEnabled(function, hadException);
    if (hadException || resultValue.hasNoValue() || !resultValue.isObject()) {
        ASSERT_NOT_REACHED();
        return Deprecated::ScriptObject();
    }
    return Deprecated::ScriptObject(context.scriptState(), resultValue);
}

void InjectedScriptCanvasModule::markFrameEnd()
{
    Deprecated::ScriptFunctionCall function(injectedScriptObject(), "markFrameEnd", WebCore::functionCallHandlerFromAnyThread);
    RefPtr<InspectorValue> resultValue;
    makeCall(function, &resultValue);
    ASSERT(resultValue);
}

void InjectedScriptCanvasModule::captureFrame(ErrorString* errorString, TraceLogId* traceLogId)
{
    callStartCapturingFunction("captureFrame", errorString, traceLogId);
}

void InjectedScriptCanvasModule::startCapturing(ErrorString* errorString, TraceLogId* traceLogId)
{
    callStartCapturingFunction("startCapturing", errorString, traceLogId);
}

void InjectedScriptCanvasModule::callStartCapturingFunction(const String& functionName, ErrorString* errorString, TraceLogId* traceLogId)
{
    Deprecated::ScriptFunctionCall function(injectedScriptObject(), functionName, WebCore::functionCallHandlerFromAnyThread);
    RefPtr<InspectorValue> resultValue;
    makeCall(function, &resultValue);
    if (!resultValue || resultValue->type() != InspectorValue::TypeString || !resultValue->asString(traceLogId))
        *errorString = "Internal error: " + functionName;
}

void InjectedScriptCanvasModule::stopCapturing(ErrorString* errorString, const TraceLogId& traceLogId)
{
    callVoidFunctionWithTraceLogIdArgument("stopCapturing", errorString, traceLogId);
}

void InjectedScriptCanvasModule::dropTraceLog(ErrorString* errorString, const TraceLogId& traceLogId)
{
    callVoidFunctionWithTraceLogIdArgument("dropTraceLog", errorString, traceLogId);
}

void InjectedScriptCanvasModule::callVoidFunctionWithTraceLogIdArgument(const String& functionName, ErrorString* errorString, const TraceLogId& traceLogId)
{
    Deprecated::ScriptFunctionCall function(injectedScriptObject(), functionName, WebCore::functionCallHandlerFromAnyThread);
    function.appendArgument(traceLogId);
    bool hadException = false;
    callFunctionWithEvalEnabled(function, hadException);
    ASSERT(!hadException);
    if (hadException)
        *errorString = "Internal error: " + functionName;
}

void InjectedScriptCanvasModule::traceLog(ErrorString* errorString, const TraceLogId& traceLogId, const int* startOffset, const int* maxLength, RefPtr<TraceLog>* traceLog)
{
    Deprecated::ScriptFunctionCall function(injectedScriptObject(), "traceLog", WebCore::functionCallHandlerFromAnyThread);
    function.appendArgument(traceLogId);
    if (startOffset)
        function.appendArgument(*startOffset);
    if (maxLength)
        function.appendArgument(*maxLength);
    RefPtr<InspectorValue> resultValue;
    makeCall(function, &resultValue);
    if (!resultValue || resultValue->type() != InspectorValue::TypeObject) {
        if (!resultValue->asString(errorString))
            *errorString = "Internal error: traceLog";
        return;
    }
    *traceLog = TraceLog::runtimeCast(resultValue);
}

void InjectedScriptCanvasModule::replayTraceLog(ErrorString* errorString, const TraceLogId& traceLogId, int stepNo, RefPtr<ResourceState>* result)
{
    Deprecated::ScriptFunctionCall function(injectedScriptObject(), "replayTraceLog", WebCore::functionCallHandlerFromAnyThread);
    function.appendArgument(traceLogId);
    function.appendArgument(stepNo);
    RefPtr<InspectorValue> resultValue;
    makeCall(function, &resultValue);
    if (!resultValue || resultValue->type() != InspectorValue::TypeObject) {
        if (!resultValue->asString(errorString))
            *errorString = "Internal error: replayTraceLog";
        return;
    }
    *result = ResourceState::runtimeCast(resultValue);
}

void InjectedScriptCanvasModule::resourceInfo(ErrorString* errorString, const ResourceId& resourceId, RefPtr<ResourceInfo>* result)
{
    Deprecated::ScriptFunctionCall function(injectedScriptObject(), "resourceInfo", WebCore::functionCallHandlerFromAnyThread);
    function.appendArgument(resourceId);
    RefPtr<InspectorValue> resultValue;
    makeCall(function, &resultValue);
    if (!resultValue || resultValue->type() != InspectorValue::TypeObject) {
        if (!resultValue->asString(errorString))
            *errorString = "Internal error: resourceInfo";
        return;
    }
    *result = ResourceInfo::runtimeCast(resultValue);
}

void InjectedScriptCanvasModule::resourceState(ErrorString* errorString, const TraceLogId& traceLogId, const ResourceId& resourceId, RefPtr<ResourceState>* result)
{
    Deprecated::ScriptFunctionCall function(injectedScriptObject(), "resourceState", WebCore::functionCallHandlerFromAnyThread);
    function.appendArgument(traceLogId);
    function.appendArgument(resourceId);
    RefPtr<InspectorValue> resultValue;
    makeCall(function, &resultValue);
    if (!resultValue || resultValue->type() != InspectorValue::TypeObject) {
        if (!resultValue->asString(errorString))
            *errorString = "Internal error: resourceState";
        return;
    }
    *result = ResourceState::runtimeCast(resultValue);
}

} // namespace WebCore

#endif // ENABLE(INSPECTOR)