root/Source/core/inspector/InjectedScriptCanvasModule.cpp

DEFINITIONS

1. moduleForState
2. source
3. wrapCanvas2DContext
4. wrapWebGLContext
5. callWrapContextFunction
6. markFrameEnd
7. captureFrame
8. startCapturing
9. callStartCapturingFunction
10. stopCapturing
11. dropTraceLog
12. callVoidFunctionWithTraceLogIdArgument
13. traceLog
14. replayTraceLog
15. resourceState
16. evaluateTraceLogCallArgument

/*
 * 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.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
 * distribution.
 *     * Neither the name of Google Inc. nor the names of its
 * 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
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "config.h"
#include "core/inspector/InjectedScriptCanvasModule.h"

#include "InjectedScriptCanvasModuleSource.h"
#include "bindings/v8/ScriptFunctionCall.h"
#include "bindings/v8/ScriptObject.h"

using WebCore::TypeBuilder::Array;
using WebCore::TypeBuilder::Canvas::ResourceId;
using WebCore::TypeBuilder::Canvas::ResourceState;
using WebCore::TypeBuilder::Canvas::TraceLog;
using WebCore::TypeBuilder::Canvas::TraceLogId;
using WebCore::TypeBuilder::Runtime::RemoteObject;

namespace WebCore {

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

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

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

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

ScriptObject InjectedScriptCanvasModule::wrapWebGLContext(const ScriptObject& glContext)
{
    return callWrapContextFunction("wrapWebGLContext", glContext);
}

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

void InjectedScriptCanvasModule::markFrameEnd()
{
    ScriptFunctionCall function(injectedScriptObject(), "markFrameEnd");
    RefPtr<JSONValue> 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)
{
    ScriptFunctionCall function(injectedScriptObject(), functionName);
    RefPtr<JSONValue> resultValue;
    makeCall(function, &resultValue);
    if (!resultValue || resultValue->type() != JSONValue::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)
{
    ScriptFunctionCall function(injectedScriptObject(), functionName);
    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)
{
    ScriptFunctionCall function(injectedScriptObject(), "traceLog");
    function.appendArgument(traceLogId);
    if (startOffset)
        function.appendArgument(*startOffset);
    if (maxLength)
        function.appendArgument(*maxLength);
    RefPtr<JSONValue> resultValue;
    makeCall(function, &resultValue);
    if (!resultValue || resultValue->type() != JSONValue::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, double* replayTime)
{
    ScriptFunctionCall function(injectedScriptObject(), "replayTraceLog");
    function.appendArgument(traceLogId);
    function.appendArgument(stepNo);
    RefPtr<JSONValue> resultValue;
    makeCall(function, &resultValue);
    if (!resultValue || resultValue->type() != JSONValue::TypeObject) {
        if (!resultValue->asString(errorString))
            *errorString = "Internal error: replayTraceLog";
        return;
    }
    RefPtr<JSONObject> resultObject = resultValue->asObject();
    RefPtr<JSONObject> resourceStateObject = resultObject->getObject("resourceState");
    if (!resourceStateObject) {
        *errorString = "Internal error: replayTraceLog: no resourceState";
        return;
    }
    *result = ResourceState::runtimeCast(resourceStateObject);
    if (!resultObject->getNumber("replayTime", replayTime))
        *errorString = "Internal error: replayTraceLog: no replayTime";
}

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

void InjectedScriptCanvasModule::evaluateTraceLogCallArgument(ErrorString* errorString, const TraceLogId& traceLogId, int callIndex, int argumentIndex, const String& objectGroup, RefPtr<RemoteObject>* result, RefPtr<ResourceState>* resourceState)
{
    ScriptFunctionCall function(injectedScriptObject(), "evaluateTraceLogCallArgument");
    function.appendArgument(traceLogId);
    function.appendArgument(callIndex);
    function.appendArgument(argumentIndex);
    function.appendArgument(objectGroup);
    RefPtr<JSONValue> resultValue;
    makeCall(function, &resultValue);
    if (!resultValue || resultValue->type() != JSONValue::TypeObject) {
        if (!resultValue->asString(errorString))
            *errorString = "Internal error: evaluateTraceLogCallArgument";
        return;
    }
    RefPtr<JSONObject> resultObject = resultValue->asObject();
    RefPtr<JSONObject> remoteObject = resultObject->getObject("result");
    if (remoteObject)
        *result = RemoteObject::runtimeCast(remoteObject);
    RefPtr<JSONObject> resourceStateObject = resultObject->getObject("resourceState");
    if (resourceStateObject)
        *resourceState = ResourceState::runtimeCast(resourceStateObject);
    if (!remoteObject && !resourceStateObject)
        *errorString = "Internal error: no result and no resource state";
}

} // namespace WebCore