Wire up the Inspector V8 Debugger

sky/engine/bindings/core/v8/custom/V8InjectedScriptHostCustom.cpp

+/*
+ * Copyright (C) 2007-2011 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 "bindings/core/v8/V8InjectedScriptHost.h"
+
+#include "bindings/core/v8/BindingSecurity.h"
+#include "bindings/core/v8/ExceptionState.h"
+#include "bindings/core/v8/ScriptDebugServer.h"
+#include "bindings/core/v8/ScriptValue.h"
+#include "bindings/core/v8/V8AbstractEventListener.h"
+#include "bindings/core/v8/V8Binding.h"
+#include "bindings/core/v8/V8DOMTokenList.h"
+#include "bindings/core/v8/V8EventTarget.h"
+#include "bindings/core/v8/V8Node.h"
+#include "bindings/core/v8/V8NodeList.h"
+#include "bindings/core/v8/V8ScriptRunner.h"
+#include "bindings/core/v8/custom/V8Float32ArrayCustom.h"
+#include "bindings/core/v8/custom/V8Float64ArrayCustom.h"
+#include "bindings/core/v8/custom/V8Int16ArrayCustom.h"
+#include "bindings/core/v8/custom/V8Int32ArrayCustom.h"
+#include "bindings/core/v8/custom/V8Int8ArrayCustom.h"
+#include "bindings/core/v8/custom/V8Uint16ArrayCustom.h"
+#include "bindings/core/v8/custom/V8Uint32ArrayCustom.h"
+#include "bindings/core/v8/custom/V8Uint8ArrayCustom.h"
+#include "bindings/core/v8/custom/V8Uint8ClampedArrayCustom.h"
+#include "core/events/EventTarget.h"
+#include "core/frame/LocalDOMWindow.h"
+#include "core/inspector/InjectedScript.h"
+#include "core/inspector/InjectedScriptHost.h"
+#include "core/inspector/JavaScriptCallFrame.h"
+#include "platform/JSONValues.h"
+
+namespace blink {
+
+Node* InjectedScriptHost::scriptValueAsNode(ScriptState* scriptState, ScriptValue value)
+{
+    ScriptState::Scope scope(scriptState);
+    if (!value.isObject() || value.isNull())
+        return 0;
+    return V8Node::toNative(v8::Handle<v8::Object>::Cast(value.v8Value()));
+}
+
+ScriptValue InjectedScriptHost::nodeAsScriptValue(ScriptState* scriptState, Node* node)
+{
+    ScriptState::Scope scope(scriptState);
+    v8::Isolate* isolate = scriptState->isolate();
+    ExceptionState exceptionState(ExceptionState::ExecutionContext, "nodeAsScriptValue", "InjectedScriptHost", scriptState->context()->Global(), isolate);
+    return ScriptValue(scriptState, toV8(node, scriptState->context()->Global(), isolate));
+}
+
+void V8InjectedScriptHost::inspectedObjectMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    if (info.Length() < 1)
+        return;
+
+    if (!info[0]->IsInt32()) {
+        V8ThrowException::throwTypeError("argument has to be an integer", info.GetIsolate());
+        return;
+    }
+
+    InjectedScriptHost* host = V8InjectedScriptHost::toNative(info.Holder());
+    InjectedScriptHost::InspectableObject* object = host->inspectedObject(info[0]->ToInt32()->Value());
+    v8SetReturnValue(info, object->get(ScriptState::current(info.GetIsolate())).v8Value());
+}
+
+static v8::Handle<v8::String> functionDisplayName(v8::Handle<v8::Function> function)
+{
+    v8::Handle<v8::Value> value = function->GetDisplayName();
+    if (value->IsString() && v8::Handle<v8::String>::Cast(value)->Length())
+        return v8::Handle<v8::String>::Cast(value);
+
+    value = function->GetName();
+    if (value->IsString() && v8::Handle<v8::String>::Cast(value)->Length())
+        return v8::Handle<v8::String>::Cast(value);
+
+    value = function->GetInferredName();
+    if (value->IsString() && v8::Handle<v8::String>::Cast(value)->Length())
+        return v8::Handle<v8::String>::Cast(value);
+
+    return v8::Handle<v8::String>();
+}
+
+void V8InjectedScriptHost::internalConstructorNameMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    if (info.Length() < 1 || !info[0]->IsObject())
+        return;
+
+    v8::Local<v8::Object> object = info[0]->ToObject();
+    v8::Local<v8::String> result = object->GetConstructorName();
+
+    if (!result.IsEmpty() && toCoreStringWithUndefinedOrNullCheck(result) == "Object") {
+        v8::Local<v8::String> constructorSymbol = v8AtomicString(info.GetIsolate(), "constructor");
+        if (object->HasRealNamedProperty(constructorSymbol) && !object->HasRealNamedCallbackProperty(constructorSymbol)) {
+            v8::TryCatch tryCatch;
+            v8::Local<v8::Value> constructor = object->GetRealNamedProperty(constructorSymbol);
+            if (!constructor.IsEmpty() && constructor->IsFunction()) {
+                v8::Local<v8::String> constructorName = functionDisplayName(v8::Handle<v8::Function>::Cast(constructor));
+                if (!constructorName.IsEmpty() && !tryCatch.HasCaught())
+                    result = constructorName;
+            }
+        }
+    }
+
+    v8SetReturnValue(info, result);
+}
+
+void V8InjectedScriptHost::isHTMLAllCollectionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    // FIXME(sky): remove
+    v8SetReturnValue(info, false);
+}
+
+void V8InjectedScriptHost::subtypeMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    if (info.Length() < 1)
+        return;
+    v8::Isolate* isolate = info.GetIsolate();
+
+    v8::Handle<v8::Value> value = info[0];
+    if (value->IsArray() || value->IsTypedArray() || value->IsArgumentsObject()) {
+        v8SetReturnValue(info, v8AtomicString(isolate, "array"));
+        return;
+    }
+    if (value->IsDate()) {
+        v8SetReturnValue(info, v8AtomicString(isolate, "date"));
+        return;
+    }
+    if (value->IsRegExp()) {
+        v8SetReturnValue(info, v8AtomicString(isolate, "regexp"));
+        return;
+    }
+    if (value->IsMap() || value->IsWeakMap()) {
+        v8SetReturnValue(info, v8AtomicString(isolate, "map"));
+        return;
+    }
+    if (value->IsSet() || value->IsWeakSet()) {
+        v8SetReturnValue(info, v8AtomicString(isolate, "set"));
+        return;
+    }
+    if (V8Node::hasInstance(value, isolate)) {
+        v8SetReturnValue(info, v8AtomicString(isolate, "node"));
+        return;
+    }
+    if (V8NodeList::hasInstance(value, isolate)
+        || V8DOMTokenList::hasInstance(value, isolate)) {
+        v8SetReturnValue(info, v8AtomicString(isolate, "array"));
+        return;
+    }
+}
+
+void V8InjectedScriptHost::functionDetailsMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    if (info.Length() < 1 || !info[0]->IsFunction())
+        return;
+
+    v8::Handle<v8::Function> function = v8::Handle<v8::Function>::Cast(info[0]);
+    int lineNumber = function->GetScriptLineNumber();
+    int columnNumber = function->GetScriptColumnNumber();
+
+    v8::Isolate* isolate = info.GetIsolate();
+    v8::Local<v8::Object> location = v8::Object::New(isolate);
+    location->Set(v8AtomicString(isolate, "lineNumber"), v8::Integer::New(isolate, lineNumber));
+    location->Set(v8AtomicString(isolate, "columnNumber"), v8::Integer::New(isolate, columnNumber));
+    location->Set(v8AtomicString(isolate, "scriptId"), v8::Integer::New(isolate, function->ScriptId())->ToString());
+
+    v8::Local<v8::Object> result = v8::Object::New(isolate);
+    result->Set(v8AtomicString(isolate, "location"), location);
+
+    v8::Handle<v8::String> name = functionDisplayName(function);
+    result->Set(v8AtomicString(isolate, "functionName"), name.IsEmpty() ? v8AtomicString(isolate, "") : name);
+
+    InjectedScriptHost* host = V8InjectedScriptHost::toNative(info.Holder());
+    ScriptDebugServer& debugServer = host->scriptDebugServer();
+    v8::Handle<v8::Value> scopes = debugServer.functionScopes(function);
+    if (!scopes.IsEmpty() && scopes->IsArray())
+        result->Set(v8AtomicString(isolate, "rawScopes"), scopes);
+
+    v8SetReturnValue(info, result);
+}
+
+void V8InjectedScriptHost::collectionEntriesMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    if (info.Length() < 1 || !info[0]->IsObject())
+        return;
+
+    v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(info[0]);
+
+    InjectedScriptHost* host = V8InjectedScriptHost::toNative(info.Holder());
+    ScriptDebugServer& debugServer = host->scriptDebugServer();
+    v8SetReturnValue(info, debugServer.collectionEntries(object));
+}
+
+void V8InjectedScriptHost::getInternalPropertiesMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    if (info.Length() < 1 || !info[0]->IsObject())
+        return;
+
+    v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(info[0]);
+
+    InjectedScriptHost* host = V8InjectedScriptHost::toNative(info.Holder());
+    ScriptDebugServer& debugServer = host->scriptDebugServer();
+    v8SetReturnValue(info, debugServer.getInternalProperties(object));
+}
+
+void V8InjectedScriptHost::getEventListenersMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    // FIXME(sky): remove
+}
+
+void V8InjectedScriptHost::inspectMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    if (info.Length() < 2)
+        return;
+
+    InjectedScriptHost* host = V8InjectedScriptHost::toNative(info.Holder());
+    ScriptState* scriptState = ScriptState::current(info.GetIsolate());
+    ScriptValue object(scriptState, info[0]);
+    ScriptValue hints(scriptState, info[1]);
+    host->inspectImpl(object.toJSONValue(scriptState), hints.toJSONValue(scriptState));
+}
+
+void V8InjectedScriptHost::evalMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    v8::Isolate* isolate = info.GetIsolate();
+    if (info.Length() < 1) {
+        isolate->ThrowException(v8::Exception::Error(v8::String::NewFromUtf8(isolate, "One argument expected.")));
+        return;
+    }
+
+    v8::Handle<v8::String> expression = info[0]->ToString();
+    if (expression.IsEmpty()) {
+        isolate->ThrowException(v8::Exception::Error(v8::String::NewFromUtf8(isolate, "The argument must be a string.")));
+        return;
+    }
+
+    ASSERT(isolate->InContext());
+    v8::TryCatch tryCatch;
+    v8::Handle<v8::Value> result = V8ScriptRunner::compileAndRunInternalScript(expression, info.GetIsolate());
+    if (tryCatch.HasCaught()) {
+        v8SetReturnValue(info, tryCatch.ReThrow());
+        return;
+    }
+    v8SetReturnValue(info, result);
+}
+
+void V8InjectedScriptHost::evaluateWithExceptionDetailsMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    v8::Isolate* isolate = info.GetIsolate();
+    if (info.Length() < 1) {
+        isolate->ThrowException(v8::Exception::Error(v8::String::NewFromUtf8(isolate, "One argument expected.")));
+        return;
+    }
+
+    v8::Handle<v8::String> expression = info[0]->ToString();
+    if (expression.IsEmpty()) {
+        isolate->ThrowException(v8::Exception::Error(v8::String::NewFromUtf8(isolate, "The argument must be a string.")));
+        return;
+    }
+
+    ASSERT(isolate->InContext());
+    v8::TryCatch tryCatch;
+    v8::Handle<v8::Value> result = V8ScriptRunner::compileAndRunInternalScript(expression, info.GetIsolate());
+
+    v8::Local<v8::Object> wrappedResult = v8::Object::New(isolate);
+    if (tryCatch.HasCaught()) {
+        wrappedResult->Set(v8::String::NewFromUtf8(isolate, "result"), tryCatch.Exception());
+        wrappedResult->Set(v8::String::NewFromUtf8(isolate, "exceptionDetails"), JavaScriptCallFrame::createExceptionDetails(tryCatch.Message(), isolate));
+    } else {
+        wrappedResult->Set(v8::String::NewFromUtf8(isolate, "result"), result);
+        wrappedResult->Set(v8::String::NewFromUtf8(isolate, "exceptionDetails"), v8::Undefined(isolate));
+    }
+    v8SetReturnValue(info, wrappedResult);
+}
+
+void V8InjectedScriptHost::setFunctionVariableValueMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    v8::Handle<v8::Value> functionValue = info[0];
+    int scopeIndex = info[1]->Int32Value();
+    String variableName = toCoreStringWithUndefinedOrNullCheck(info[2]);
+    v8::Handle<v8::Value> newValue = info[3];
+
+    InjectedScriptHost* host = V8InjectedScriptHost::toNative(info.Holder());
+    ScriptDebugServer& debugServer = host->scriptDebugServer();
+    v8SetReturnValue(info, debugServer.setFunctionVariableValue(functionValue, scopeIndex, variableName, newValue));
+}
+
+static bool getFunctionLocation(const v8::FunctionCallbackInfo<v8::Value>& info, String* scriptId, int* lineNumber, int* columnNumber)
+{
+    if (info.Length() < 1)
+        return false;
+    v8::Handle<v8::Value> fn = info[0];
+    if (!fn->IsFunction())
+        return false;
+    v8::Handle<v8::Function> function = v8::Handle<v8::Function>::Cast(fn);
+    *lineNumber = function->GetScriptLineNumber();
+    *columnNumber = function->GetScriptColumnNumber();
+    if (*lineNumber == v8::Function::kLineOffsetNotFound || *columnNumber == v8::Function::kLineOffsetNotFound)
+        return false;
+    *scriptId = String::number(function->ScriptId());
+    return true;
+}
+
+void V8InjectedScriptHost::debugFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    String scriptId;
+    int lineNumber;
+    int columnNumber;
+    if (!getFunctionLocation(info, &scriptId, &lineNumber, &columnNumber))
+        return;
+
+    InjectedScriptHost* host = V8InjectedScriptHost::toNative(info.Holder());
+    host->debugFunction(scriptId, lineNumber, columnNumber);
+}
+
+void V8InjectedScriptHost::undebugFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    String scriptId;
+    int lineNumber;
+    int columnNumber;
+    if (!getFunctionLocation(info, &scriptId, &lineNumber, &columnNumber))
+        return;
+
+    InjectedScriptHost* host = V8InjectedScriptHost::toNative(info.Holder());
+    host->undebugFunction(scriptId, lineNumber, columnNumber);
+}
+
+void V8InjectedScriptHost::monitorFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    String scriptId;
+    int lineNumber;
+    int columnNumber;
+    if (!getFunctionLocation(info, &scriptId, &lineNumber, &columnNumber))
+        return;
+
+    v8::Handle<v8::Value> name;
+    if (info.Length() > 0 && info[0]->IsFunction()) {
+        v8::Handle<v8::Function> function = v8::Handle<v8::Function>::Cast(info[0]);
+        name = function->GetName();
+        if (!name->IsString() || !v8::Handle<v8::String>::Cast(name)->Length())
+            name = function->GetInferredName();
+    }
+
+    InjectedScriptHost* host = V8InjectedScriptHost::toNative(info.Holder());
+    host->monitorFunction(scriptId, lineNumber, columnNumber, toCoreStringWithUndefinedOrNullCheck(name));
+}
+
+void V8InjectedScriptHost::unmonitorFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    String scriptId;
+    int lineNumber;
+    int columnNumber;
+    if (!getFunctionLocation(info, &scriptId, &lineNumber, &columnNumber))
+        return;
+
+    InjectedScriptHost* host = V8InjectedScriptHost::toNative(info.Holder());
+    host->unmonitorFunction(scriptId, lineNumber, columnNumber);
+}
+
+void V8InjectedScriptHost::callFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    if (info.Length() < 2 || info.Length() > 3 || !info[0]->IsFunction()) {
+        ASSERT_NOT_REACHED();
+        return;
+    }
+
+    v8::Handle<v8::Function> function = v8::Handle<v8::Function>::Cast(info[0]);
+    v8::Handle<v8::Value> receiver = info[1];
+
+    if (info.Length() < 3 || info[2]->IsUndefined()) {
+        v8::Local<v8::Value> result = function->Call(receiver, 0, 0);
+        v8SetReturnValue(info, result);
+        return;
+    }
+
+    if (!info[2]->IsArray()) {
+        ASSERT_NOT_REACHED();
+        return;
+    }
+
+    v8::Handle<v8::Array> arguments = v8::Handle<v8::Array>::Cast(info[2]);
+    size_t argc = arguments->Length();
+    OwnPtr<v8::Handle<v8::Value>[]> argv = adoptArrayPtr(new v8::Handle<v8::Value>[argc]);
+    for (size_t i = 0; i < argc; ++i)
+        argv[i] = arguments->Get(i);
+
+    v8::Local<v8::Value> result = function->Call(receiver, argc, argv.get());
+    v8SetReturnValue(info, result);
+}
+
+void V8InjectedScriptHost::suppressWarningsAndCallFunctionMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
+{
+    InjectedScriptHost* host = V8InjectedScriptHost::toNative(info.Holder());
+    ScriptDebugServer& debugServer = host->scriptDebugServer();
+    debugServer.muteWarningsAndDeprecations();
+
+    callFunctionMethodCustom(info);
+
+    debugServer.unmuteWarningsAndDeprecations();
+}
+
+} // namespace blink