Make IME extensions decide when to show the keyboard.

chrome/browser/chromeos/input_method/input_method_manager_impl.cc

 // Copyright (c) 2012 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 "chrome/browser/chromeos/input_method/input_method_manager_impl.h"
 
 #include <stdint.h>
 
 #include <algorithm>  // std::find
 #include <memory>
@@ skipping 1196 matching lines @@
     return;
 
   is_ime_menu_activated_ = state_->menu_activated;
   for (auto& observer : ime_menu_observers_)
     observer.ImeMenuActivationChanged(is_ime_menu_activated_);
   UMA_HISTOGRAM_BOOLEAN("InputMethod.ImeMenu.ActivationChanged",
                         is_ime_menu_activated_);
 }
 
 void InputMethodManagerImpl::OverrideKeyboardUrlRef(const std::string& keyset) {
-  GURL url = keyboard::GetOverrideContentUrl();
+  GURL input_view_url;
+  if (GetActiveIMEState()) {
+    input_view_url =
+        GetActiveIMEState()->GetCurrentInputMethod().input_view_url();
+  }
+  GURL url = input_view_url.is_empty() ? keyboard::GetOverrideContentUrl()
+                                       : input_view_url;
 
   // If fails to find ref or tag "id" in the ref, it means the current IME is
   // not system IME, and we don't support show emoji, handwriting or voice
   // input for such IME extension.
   if (!url.has_ref())
     return;
   std::string overridden_ref = url.ref();
+
   auto i = overridden_ref.find("id=");
   if (i == std::string::npos)
     return;
 
   if (keyset.empty()) {
     // Resets the url as the input method default url and notify the hash
     // changed to VK.
-    keyboard::SetOverrideContentUrl(
-        GetActiveIMEState()->GetCurrentInputMethod().input_view_url());
+    keyboard::SetOverrideContentUrl(input_view_url);
     keyboard::KeyboardController* keyboard_controller =
         keyboard::KeyboardController::GetInstance();
     if (keyboard_controller)
       keyboard_controller->Reload();
     return;
   }
 
   // For system IME extension, the input view url is overridden as:
   // chrome-extension://${extension_id}/inputview.html#id=us.compact.qwerty
   // &language=en-US&passwordLayout=us.compact.qwerty&name=keyboard_us
   // Fow emoji, handwriting and voice input, we append the keyset to the end of
   // id like: id=${keyset}.emoji/hwt/voice.
   auto j = overridden_ref.find("&", i + 1);
   if (j == std::string::npos) {
     overridden_ref += "." + keyset;
   } else {
     overridden_ref.replace(j, 0, "." + keyset);
   }
 
   GURL::Replacements replacements;
   replacements.SetRefStr(overridden_ref);
   keyboard::SetOverrideContentUrl(url.ReplaceComponents(replacements));
+
+  keyboard::KeyboardController* keyboard_controller =
+      keyboard::KeyboardController::GetInstance();
+  if (keyboard_controller)
+    keyboard_controller->Reload();
 }
 
 bool InputMethodManagerImpl::IsEmojiHandwritingVoiceOnImeMenuEnabled() {
   return base::FeatureList::IsEnabled(features::kEHVInputOnImeMenu);
 }
 
 }  // namespace input_method
 }  // namespace chromeos