The first step for enabling off-the-spot IME on Pepper on ChromeOS/Linux.

content/renderer/render_view.cc

 // Copyright (c) 2011 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.
 
 #include "content/renderer/render_view.h"
 
 #include <algorithm>
 #include <cmath>
 #include <string>
 #include <vector>
@@ skipping 71 matching lines @@
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFileChooserParams.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFileSystemCallbacks.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFindOptions.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFormControlElement.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFormElement.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebGraphicsContext3D.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebHistoryItem.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebImage.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebInputElement.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebInputEvent.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebMediaPlayerAction.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebNetworkStateNotifier.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebNodeList.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPlugin.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPluginContainer.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPluginDocument.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPluginParams.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPoint.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebRange.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebRect.h"
@@ skipping 241 matching lines @@
       navigation_gesture_(NavigationGestureUnknown),
       opened_by_user_gesture_(true),
       opener_suppressed_(false),
       page_id_(-1),
       last_page_id_sent_to_browser_(-1),
       history_list_offset_(-1),
       history_list_length_(0),
       has_unload_listener_(false),
       target_url_status_(TARGET_NONE),
       ALLOW_THIS_IN_INITIALIZER_LIST(pepper_delegate_(this)),
+      is_ppapi_plugin_focused_(false),
       ALLOW_THIS_IN_INITIALIZER_LIST(accessibility_method_factory_(this)),
       ALLOW_THIS_IN_INITIALIZER_LIST(cookie_jar_(this)),
       geolocation_dispatcher_(NULL),
       speech_input_dispatcher_(NULL),
       device_orientation_dispatcher_(NULL),
       accessibility_ack_pending_(false),
       p2p_socket_dispatcher_(NULL),
       session_storage_namespace_id_(session_storage_namespace_id) {
   routing_id_ = routing_id;
   if (opener_id != MSG_ROUTING_NONE)
@@ skipping 3566 matching lines @@
         (*plugin_it)->SetWindowFocus(true);
 #endif
       (*plugin_it)->SetContentAreaFocus(enable);
     }
 
     // Notify all Pepper plugins.
     pepper_delegate_.OnSetFocus(enable);
   }
 }
 
+void RenderView::PpapiPluginFocusChanged(bool focused) {
+  is_ppapi_plugin_focused_ = focused;
+  UpdateInputMethod();
+}
+
+void RenderView::OnImeSetComposition(
+    const string16& text,
+    const std::vector<WebKit::WebCompositionUnderline>& underlines,
+    int selection_start,
+    int selection_end) {
+  // Until PPAPI has an interface for handling IME events, we skip sending
+  // OnImeSetComposition. Otherwise the composition is canceled when a
+  // non-editable DOM element is focused.
+  //
+  // TODO(kinaba) This temporal remedy can be removed after PPAPI is extended
+  // with an IME handling interface.
+  if (!is_ppapi_plugin_focused_) {
+    RenderWidget::OnImeSetComposition(text,
+                                      underlines,
+                                      selection_start,
+                                      selection_end);
+  }
+}
+
+void RenderView::OnImeConfirmComposition(const string16& text) {
+  if (is_ppapi_plugin_focused_) {
+    // TODO(kinaba) Until PPAPI has an interface for handling IME events, we
+    // send character events.
+    for (size_t i = 0; i < text.size(); ++i) {
+      WebKit::WebKeyboardEvent char_event;
+      char_event.type = WebKit::WebInputEvent::Char;
+      char_event.timeStampSeconds = base::Time::Now().ToDoubleT();
+      char_event.modifiers = 0;
+      char_event.windowsKeyCode = text[i];
+      char_event.nativeKeyCode = text[i];
+      char_event.text[0] = text[i];
+      char_event.unmodifiedText[0] = text[i];
+      if (webwidget_)
+        webwidget_->handleInputEvent(char_event);
+    }
+  } else {
+    RenderWidget::OnImeConfirmComposition(text);
+  }
+}
+
+void RenderView::GetTextInputType(WebKit::WebTextInputType* type,
+                                  WebKit::WebRect* caret_bounds) {
+  if (is_ppapi_plugin_focused_) {
+    // TODO(kinaba) Until PPAPI has an interface for handling IME events, we
+    // consider all the parts of PPAPI plugins are accepting text inputs.
+    *type = WebKit::WebTextInputTypeText;
+  } else {
+    RenderWidget::GetTextInputType(type, caret_bounds);
+  }
+}
+
 #if defined(OS_MACOSX)
 void RenderView::PluginFocusChanged(bool focused, int plugin_id) {
   IPC::Message* msg = new ViewHostMsg_PluginFocusChanged(routing_id(),
                                                          focused, plugin_id);
   Send(msg);
 }
 
 void RenderView::StartPluginIme() {
   IPC::Message* msg = new ViewHostMsg_StartPluginIme(routing_id());
   // This message can be sent during event-handling, and needs to be delivered
@@ skipping 230 matching lines @@
     const webkit_glue::CustomContextMenuContext& custom_context) {
   if (custom_context.is_pepper_menu)
     pepper_delegate_.OnContextMenuClosed(custom_context);
   else
     context_menu_node_.reset();
 }
 
 void RenderView::OnNetworkStateChanged(bool online) {
   WebNetworkStateNotifier::setOnLine(online);
 }