1 // Copyright 2015 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "src/inspector/injected-script-native.h" 6 7 namespace v8_inspector { 8 9 InjectedScriptNative::InjectedScriptNative(v8::Isolate* isolate) 10 : m_lastBoundObjectId(1), m_isolate(isolate) {} 11 12 static const char privateKeyName[] = "v8-inspector#injectedScript"; 13 14 InjectedScriptNative::~InjectedScriptNative() {} 15 16 void InjectedScriptNative::setOnInjectedScriptHost( 17 v8::Local<v8::Object> injectedScriptHost) { 18 v8::HandleScope handleScope(m_isolate); 19 v8::Local<v8::External> external = v8::External::New(m_isolate, this); 20 v8::Local<v8::Private> privateKey = v8::Private::ForApi( 21 m_isolate, v8::String::NewFromUtf8(m_isolate, privateKeyName, 22 v8::NewStringType::kInternalized) 23 .ToLocalChecked()); 24 injectedScriptHost->SetPrivate(m_isolate->GetCurrentContext(), privateKey, 25 external); 26 } 27 28 InjectedScriptNative* InjectedScriptNative::fromInjectedScriptHost( 29 v8::Isolate* isolate, v8::Local<v8::Object> injectedScriptObject) { 30 v8::HandleScope handleScope(isolate); 31 v8::Local<v8::Context> context = isolate->GetCurrentContext(); 32 v8::Local<v8::Private> privateKey = v8::Private::ForApi( 33 isolate, v8::String::NewFromUtf8(isolate, privateKeyName, 34 v8::NewStringType::kInternalized) 35 .ToLocalChecked()); 36 v8::Local<v8::Value> value = 37 injectedScriptObject->GetPrivate(context, privateKey).ToLocalChecked(); 38 DCHECK(value->IsExternal()); 39 v8::Local<v8::External> external = value.As<v8::External>(); 40 return static_cast<InjectedScriptNative*>(external->Value()); 41 } 42 43 int InjectedScriptNative::bind(v8::Local<v8::Value> value, 44 const String16& groupName) { 45 if (m_lastBoundObjectId <= 0) m_lastBoundObjectId = 1; 46 int id = m_lastBoundObjectId++; 47 m_idToWrappedObject[id] = 48 wrapUnique(new v8::Global<v8::Value>(m_isolate, value)); 49 addObjectToGroup(id, groupName); 50 return id; 51 } 52 53 void InjectedScriptNative::unbind(int id) { 54 m_idToWrappedObject.erase(id); 55 m_idToObjectGroupName.erase(id); 56 } 57 58 v8::Local<v8::Value> InjectedScriptNative::objectForId(int id) { 59 auto iter = m_idToWrappedObject.find(id); 60 return iter != m_idToWrappedObject.end() ? iter->second->Get(m_isolate) 61 : v8::Local<v8::Value>(); 62 } 63 64 void InjectedScriptNative::addObjectToGroup(int objectId, 65 const String16& groupName) { 66 if (groupName.isEmpty()) return; 67 if (objectId <= 0) return; 68 m_idToObjectGroupName[objectId] = groupName; 69 m_nameToObjectGroup[groupName].push_back( 70 objectId); // Creates an empty vector if key is not there 71 } 72 73 void InjectedScriptNative::releaseObjectGroup(const String16& groupName) { 74 if (groupName.isEmpty()) return; 75 NameToObjectGroup::iterator groupIt = m_nameToObjectGroup.find(groupName); 76 if (groupIt == m_nameToObjectGroup.end()) return; 77 for (int id : groupIt->second) unbind(id); 78 m_nameToObjectGroup.erase(groupIt); 79 } 80 81 String16 InjectedScriptNative::groupName(int objectId) const { 82 if (objectId <= 0) return String16(); 83 IdToObjectGroupName::const_iterator iterator = 84 m_idToObjectGroupName.find(objectId); 85 return iterator != m_idToObjectGroupName.end() ? iterator->second 86 : String16(); 87 } 88 89 } // namespace v8_inspector 90
