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      1 /*
      2  * Copyright (C) 2012 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "config.h"
     32 #include "core/inspector/InjectedScriptCanvasModule.h"
     33 
     34 #include "bindings/v8/ScriptFunctionCall.h"
     35 #include "bindings/v8/ScriptValue.h"
     36 #include "core/InjectedScriptCanvasModuleSource.h"
     37 
     38 using WebCore::TypeBuilder::Array;
     39 using WebCore::TypeBuilder::Canvas::ResourceId;
     40 using WebCore::TypeBuilder::Canvas::ResourceState;
     41 using WebCore::TypeBuilder::Canvas::TraceLog;
     42 using WebCore::TypeBuilder::Canvas::TraceLogId;
     43 using WebCore::TypeBuilder::Runtime::RemoteObject;
     44 
     45 namespace WebCore {
     46 
     47 InjectedScriptCanvasModule::InjectedScriptCanvasModule()
     48     : InjectedScriptModule("InjectedScriptCanvasModule")
     49 {
     50 }
     51 
     52 InjectedScriptCanvasModule InjectedScriptCanvasModule::moduleForState(InjectedScriptManager* injectedScriptManager, ScriptState* scriptState)
     53 {
     54     InjectedScriptCanvasModule result;
     55     result.ensureInjected(injectedScriptManager, scriptState);
     56     return result;
     57 }
     58 
     59 String InjectedScriptCanvasModule::source() const
     60 {
     61     return String(reinterpret_cast<const char*>(InjectedScriptCanvasModuleSource_js), sizeof(InjectedScriptCanvasModuleSource_js));
     62 }
     63 
     64 ScriptValue InjectedScriptCanvasModule::wrapCanvas2DContext(const ScriptValue& context)
     65 {
     66     return callWrapContextFunction("wrapCanvas2DContext", context);
     67 }
     68 
     69 ScriptValue InjectedScriptCanvasModule::wrapWebGLContext(const ScriptValue& glContext)
     70 {
     71     return callWrapContextFunction("wrapWebGLContext", glContext);
     72 }
     73 
     74 ScriptValue InjectedScriptCanvasModule::callWrapContextFunction(const String& functionName, const ScriptValue& context)
     75 {
     76     ScriptFunctionCall function(injectedScriptObject(), functionName);
     77     function.appendArgument(context);
     78     bool hadException = false;
     79     ScriptValue resultValue = callFunctionWithEvalEnabled(function, hadException);
     80     if (hadException || resultValue.isEmpty() || !resultValue.isObject()) {
     81         ASSERT_NOT_REACHED();
     82         return ScriptValue();
     83     }
     84     return resultValue;
     85 }
     86 
     87 void InjectedScriptCanvasModule::markFrameEnd()
     88 {
     89     ScriptFunctionCall function(injectedScriptObject(), "markFrameEnd");
     90     RefPtr<JSONValue> resultValue;
     91     makeCall(function, &resultValue);
     92     ASSERT(resultValue);
     93 }
     94 
     95 void InjectedScriptCanvasModule::captureFrame(ErrorString* errorString, TraceLogId* traceLogId)
     96 {
     97     callStartCapturingFunction("captureFrame", errorString, traceLogId);
     98 }
     99 
    100 void InjectedScriptCanvasModule::startCapturing(ErrorString* errorString, TraceLogId* traceLogId)
    101 {
    102     callStartCapturingFunction("startCapturing", errorString, traceLogId);
    103 }
    104 
    105 void InjectedScriptCanvasModule::callStartCapturingFunction(const String& functionName, ErrorString* errorString, TraceLogId* traceLogId)
    106 {
    107     ScriptFunctionCall function(injectedScriptObject(), functionName);
    108     RefPtr<JSONValue> resultValue;
    109     makeCall(function, &resultValue);
    110     if (!resultValue || resultValue->type() != JSONValue::TypeString || !resultValue->asString(traceLogId))
    111         *errorString = "Internal error: " + functionName;
    112 }
    113 
    114 void InjectedScriptCanvasModule::stopCapturing(ErrorString* errorString, const TraceLogId& traceLogId)
    115 {
    116     callVoidFunctionWithTraceLogIdArgument("stopCapturing", errorString, traceLogId);
    117 }
    118 
    119 void InjectedScriptCanvasModule::dropTraceLog(ErrorString* errorString, const TraceLogId& traceLogId)
    120 {
    121     callVoidFunctionWithTraceLogIdArgument("dropTraceLog", errorString, traceLogId);
    122 }
    123 
    124 void InjectedScriptCanvasModule::callVoidFunctionWithTraceLogIdArgument(const String& functionName, ErrorString* errorString, const TraceLogId& traceLogId)
    125 {
    126     ScriptFunctionCall function(injectedScriptObject(), functionName);
    127     function.appendArgument(traceLogId);
    128     bool hadException = false;
    129     callFunctionWithEvalEnabled(function, hadException);
    130     ASSERT(!hadException);
    131     if (hadException)
    132         *errorString = "Internal error: " + functionName;
    133 }
    134 
    135 void InjectedScriptCanvasModule::traceLog(ErrorString* errorString, const TraceLogId& traceLogId, const int* startOffset, const int* maxLength, RefPtr<TraceLog>* traceLog)
    136 {
    137     ScriptFunctionCall function(injectedScriptObject(), "traceLog");
    138     function.appendArgument(traceLogId);
    139     if (startOffset)
    140         function.appendArgument(*startOffset);
    141     if (maxLength)
    142         function.appendArgument(*maxLength);
    143     RefPtr<JSONValue> resultValue;
    144     makeCall(function, &resultValue);
    145     if (!resultValue || resultValue->type() != JSONValue::TypeObject) {
    146         if (!resultValue->asString(errorString))
    147             *errorString = "Internal error: traceLog";
    148         return;
    149     }
    150     *traceLog = TraceLog::runtimeCast(resultValue);
    151 }
    152 
    153 void InjectedScriptCanvasModule::replayTraceLog(ErrorString* errorString, const TraceLogId& traceLogId, int stepNo, RefPtr<ResourceState>* result, double* replayTime)
    154 {
    155     ScriptFunctionCall function(injectedScriptObject(), "replayTraceLog");
    156     function.appendArgument(traceLogId);
    157     function.appendArgument(stepNo);
    158     RefPtr<JSONValue> resultValue;
    159     makeCall(function, &resultValue);
    160     if (!resultValue || resultValue->type() != JSONValue::TypeObject) {
    161         if (!resultValue->asString(errorString))
    162             *errorString = "Internal error: replayTraceLog";
    163         return;
    164     }
    165     RefPtr<JSONObject> resultObject = resultValue->asObject();
    166     RefPtr<JSONObject> resourceStateObject = resultObject->getObject("resourceState");
    167     if (!resourceStateObject) {
    168         *errorString = "Internal error: replayTraceLog: no resourceState";
    169         return;
    170     }
    171     *result = ResourceState::runtimeCast(resourceStateObject);
    172     if (!resultObject->getNumber("replayTime", replayTime))
    173         *errorString = "Internal error: replayTraceLog: no replayTime";
    174 }
    175 
    176 void InjectedScriptCanvasModule::resourceState(ErrorString* errorString, const TraceLogId& traceLogId, const ResourceId& resourceId, RefPtr<ResourceState>* result)
    177 {
    178     ScriptFunctionCall function(injectedScriptObject(), "resourceState");
    179     function.appendArgument(traceLogId);
    180     function.appendArgument(resourceId);
    181     RefPtr<JSONValue> resultValue;
    182     makeCall(function, &resultValue);
    183     if (!resultValue || resultValue->type() != JSONValue::TypeObject) {
    184         if (!resultValue->asString(errorString))
    185             *errorString = "Internal error: resourceState";
    186         return;
    187     }
    188     *result = ResourceState::runtimeCast(resultValue);
    189 }
    190 
    191 void InjectedScriptCanvasModule::evaluateTraceLogCallArgument(ErrorString* errorString, const TraceLogId& traceLogId, int callIndex, int argumentIndex, const String& objectGroup, RefPtr<RemoteObject>* result, RefPtr<ResourceState>* resourceState)
    192 {
    193     ScriptFunctionCall function(injectedScriptObject(), "evaluateTraceLogCallArgument");
    194     function.appendArgument(traceLogId);
    195     function.appendArgument(callIndex);
    196     function.appendArgument(argumentIndex);
    197     function.appendArgument(objectGroup);
    198     RefPtr<JSONValue> resultValue;
    199     makeCall(function, &resultValue);
    200     if (!resultValue || resultValue->type() != JSONValue::TypeObject) {
    201         if (!resultValue->asString(errorString))
    202             *errorString = "Internal error: evaluateTraceLogCallArgument";
    203         return;
    204     }
    205     RefPtr<JSONObject> resultObject = resultValue->asObject();
    206     RefPtr<JSONObject> remoteObject = resultObject->getObject("result");
    207     if (remoteObject)
    208         *result = RemoteObject::runtimeCast(remoteObject);
    209     RefPtr<JSONObject> resourceStateObject = resultObject->getObject("resourceState");
    210     if (resourceStateObject)
    211         *resourceState = ResourceState::runtimeCast(resourceStateObject);
    212     if (!remoteObject && !resourceStateObject)
    213         *errorString = "Internal error: no result and no resource state";
    214 }
    215 
    216 } // namespace WebCore
    217