IME for Mus: Send TextInputClient information to IMEDriver.

services/ui/public/interfaces/ime/ime.mojom

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 module ui.mojom;
 
+import "mojo/common/text_direction.mojom";
 import "ui/events/mojo/event.mojom";
 import "ui/gfx/geometry/mojo/geometry.mojom";
 import "ui/gfx/range/mojo/range.mojom";
 
 // Represents an underlined segment of text currently composed by IME.
 // Corresponds to ui::CompositionUnderline.
 struct CompositionUnderline {
   uint32 start_offset;
   uint32 end_offset;
   bool thick;
@@ skipping 40 matching lines @@
   FULL_WIDTH_LATIN,
   KANA,
   KANA_NAME,
   KATAKANA,
   NUMERIC,
   TEL,
   EMAIL,
   URL,
 };
 
+// Parameters needed to start an IME session.
+struct StartSessionDetails {
+  TextInputClient client;
+  InputMethod& input_method_request;
+
+  // Initial details about |client| required by IMEDriver.
+  TextInputType text_input_type;
+  TextInputMode text_input_mode;
+  mojo.common.mojom.TextDirection text_direction;
+  int32 text_input_flags;
+  gfx.mojom.Rect caret_bounds;
+};
+
 // A service which provides the IMEDriver interface is responsible for doing
 // the composition logic. After starting a session, it receives events from
 // the client via the InputMethod interface, and sends composition events to
 // the client via the TextInputClient.
 interface IMEDriver {
   // session_id is unique and generated by Mus.
-  StartSession(int32 session_id, TextInputClient client,
-               InputMethod& input_method);
+  StartSession(int32 session_id, StartSessionDetails details);
   CancelSession(int32 session_id);
 };
 
 // Clients use IME using the IMEServer interface which is provided by Mus. Mus
 // does minimal processing and mostly just acts as lightweight proxy between
 // the client app and the registered IME driver.
 interface IMEServer {
-  StartSession(TextInputClient client,
-               InputMethod& input_method);
+  StartSession(StartSessionDetails details);
 };
 
 // An IME driver register should register itself to Mus using the IMERegistrar
 // interface.
 interface IMERegistrar {
   RegisterDriver(IMEDriver driver);
 };
 
 // A client sends updates to the IME driver using the InputMethod interface.
 // This interface is provided by IME drivers, and also by Mus as a lightweight
@@ skipping 39 matching lines @@
   // the character is not processed. See ui::TextInputClient::InsertChar()
   // for more details.
   InsertChar(ui.mojom.Event event);
 
   // TODO(moshayedi): Add functions corresponding to ui::TextInputClient for:
   // - Input context information
   // - Document content operations
   // - Miscellaneous functions
   // crbug.com/631527.
 };