Tracking text selection on the browser side in OOPIF.

content/public/test/text_input_test_utils.h

 // 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.
 
 #ifndef CONTENT_PUBLIC_TEST_TEXT_INPUT_TEST_UTILS_H_
 #define CONTENT_PUBLIC_TEST_TEXT_INPUT_TEST_UTILS_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 60 matching lines @@
   void SetUpdateTextInputStateCalledCallback(const base::Closure& callback);
 
   // Sets a callback which is invoked when a RWHV calls SelectionBoundsChanged
   // on the TextInputManager which is being observed.
   void SetOnSelectionBoundsChangedCallback(const base::Closure& callback);
 
   // Sets a callback which is invoked when a RWHV calls
   // ImeCompositionRangeChanged on the TextInputManager that is being observed.
   void SetOnImeCompositionRangeChangedCallback(const base::Closure& callback);
 
+  // Sets a callback which is invoked when a RWHV calls SelectionChanged on the
+  // TextInputManager which is being observed.
+  void SetOnTextSelectionChangedCallback(const base::Closure& callback);
+
   // Returns true if there is a focused <input> and populates |type| with
   // |TextInputState.type| of the TextInputManager.
   bool GetTextInputType(ui::TextInputType* type);
 
   // Returns true if there is a focused <input> and populates |value| with
   // |TextInputState.value| of the TextInputManager.
   bool GetTextInputValue(std::string* value);
 
+  // Returns true if there is a focused <input> and populates |length| with the
+  // length of the selected text range in the focused view.
+  bool GetCurrentTextSelectionLength(size_t* length);
+

[EhsanK, 2016/07/18 15:21:29]

TextSelection could be for non-<input> but as far as I can tell we do not care
about them in IME. So I made this return true only when we have an
|active_view_|.

   // Returns the RenderWidgetHostView with a focused <input> element or nullptr
   // if none exists.
   const RenderWidgetHostView* GetActiveView();
 
   // Returns the RenderWidgetHostView which has most recently updated any of its
   // state (e.g., TextInputState or otherwise).
   const RenderWidgetHostView* GetUpdatedView();
 
   // Returns true if a call to TextInputManager::UpdateTextInputState has led
   // to a change in TextInputState (since the time the observer has been
@@ skipping 73 matching lines @@
       const base::Closure& callback) = 0;
   virtual void SetOnShowImeIfNeededCallback(const base::Closure& callback) = 0;
 
  protected:
   TestInputMethodObserver();
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_TEST_TEXT_INPUT_TEST_UTILS_H_