JSValue JSHTMLCanvasElement::getContext(ExecState* exec)
{
HTMLCanvasElement& canvas = impl();
const String& contextId = exec->argument(0).toString(exec)->value(exec);
RefPtr<CanvasContextAttributes> attrs;
#if ENABLE(WEBGL)
if (HTMLCanvasElement::is3dType(contextId)) {
get3DContextAttributes(exec, attrs);
if (exec->hadException())
return jsUndefined();
}
#endif
CanvasRenderingContext* context = canvas.getContext(contextId, attrs.get());
if (!context)
return jsNull();
JSValue jsValue = toJS(exec, globalObject(), WTF::getPtr(context));
if (InspectorInstrumentation::canvasAgentEnabled(&canvas.document())) {
Deprecated::ScriptObject contextObject(exec, jsValue.getObject());
Deprecated::ScriptObject wrapped;
if (context->is2d())
wrapped = InspectorInstrumentation::wrapCanvas2DRenderingContextForInstrumentation(&canvas.document(), contextObject);
#if ENABLE(WEBGL)
else if (context->is3d())
wrapped = InspectorInstrumentation::wrapWebGLRenderingContextForInstrumentation(&canvas.document(), contextObject);
#endif
if (!wrapped.hasNoValue())
return wrapped.jsValue();
}
return jsValue;
}
void InspectorHeapProfilerAgent::getObjectByHeapObjectId(ErrorString* error, const String& heapSnapshotObjectId, const String* objectGroup, RefPtr<Inspector::TypeBuilder::Runtime::RemoteObject>& result)
{
bool ok;
unsigned id = heapSnapshotObjectId.toUInt(&ok);
if (!ok) {
*error = "Invalid heap snapshot object id";
return;
}
Deprecated::ScriptObject heapObject = ScriptProfiler::objectByHeapObjectId(id);
if (heapObject.hasNoValue()) {
*error = "Object is not available";
return;
}
InjectedScript injectedScript = m_injectedScriptManager->injectedScriptFor(heapObject.scriptState());
if (injectedScript.hasNoValue()) {
*error = "Object is not available. Inspected context is gone";
return;
}
result = injectedScript.wrapObject(heapObject, objectGroup ? *objectGroup : "");
if (!result)
*error = "Failed to wrap object";
}