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 20 IPC_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. 24 IPC_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. 29 IPC_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. 35 IPC_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. 41 IPC_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. 55 IPC_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. 72 IPC_MESSAGE_ROUTED1(GinJavaBridgeHostMsg_ObjectWrapperDeleted, 73 int32 /* object_id */) 74
