1// Copyright 2014 The Chromium 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// IPC messages for injected Java objects (Gin-based implementation). 6 7// Multiply-included message file, hence no include guard. 8 9#include "base/basictypes.h" 10#include "content/common/android/gin_java_bridge_errors.h" 11#include "content/common/content_export.h" 12#include "ipc/ipc_message_macros.h" 13 14#undef IPC_MESSAGE_EXPORT 15#define IPC_MESSAGE_EXPORT CONTENT_EXPORT 16#define IPC_MESSAGE_START GinJavaBridgeMsgStart 17 18// Messages for handling Java objects injected into JavaScript ----------------- 19 20IPC_ENUM_TRAITS(content::GinJavaBridgeError) 21 22// Sent from browser to renderer to add a Java object with the given name. 23// Object IDs are generated on the browser side. 24IPC_MESSAGE_ROUTED2(GinJavaBridgeMsg_AddNamedObject, 25 std::string /* name */, 26 int32 /* object_id */) 27 28// Sent from browser to renderer to remove a Java object with the given name. 29IPC_MESSAGE_ROUTED1(GinJavaBridgeMsg_RemoveNamedObject, 30 std::string /* name */) 31 32// Sent from renderer to browser to get information about methods of 33// the given object. The query will only succeed if inspection of injected 34// objects is enabled on the browser side. 35IPC_SYNC_MESSAGE_ROUTED1_1(GinJavaBridgeHostMsg_GetMethods, 36 int32 /* object_id */, 37 std::set<std::string> /* returned_method_names */) 38 39// Sent from renderer to browser to find out, if an object has a method with 40// the given name. 41IPC_SYNC_MESSAGE_ROUTED2_1(GinJavaBridgeHostMsg_HasMethod, 42 int32 /* object_id */, 43 std::string /* method_name */, 44 bool /* result */) 45 46// Sent from renderer to browser to invoke a method. Method arguments 47// are chained into |arguments| list. base::ListValue is used for |result| as 48// a container to work around immutability of base::Value. 49// Empty result list indicates that an error has happened on the Java side 50// (either bridge-induced error or an unhandled Java exception) and an exception 51// must be thrown into JavaScript. |error_code| indicates the cause of 52// the error. 53// Some special value types that are not supported by base::Value are encoded 54// as BinaryValues via GinJavaBridgeValue. 55IPC_SYNC_MESSAGE_ROUTED3_2(GinJavaBridgeHostMsg_InvokeMethod, 56 int32 /* object_id */, 57 std::string /* method_name */, 58 base::ListValue /* arguments */, 59 base::ListValue /* result */, 60 content::GinJavaBridgeError /* error_code */) 61 62// Sent from renderer to browser in two cases: 63// 64// 1. (Main usage) To inform that the JS wrapper of the object has 65// been completely dereferenced and garbage-collected. 66// 67// 2. To notify the browser that wrapper creation has failed. The browser side 68// assumes optimistically that every time an object is returned from a 69// method, the corresponding wrapper object will be successfully created on 70// the renderer side. Sending of this message informs the browser whether 71// this expectation has failed. 72IPC_MESSAGE_ROUTED1(GinJavaBridgeHostMsg_ObjectWrapperDeleted, 73 int32 /* object_id */) 74