Limit display of the virtual keyboard to state changes triggered from a user gesture.

ui/views/controls/textfield/textfield.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 "ui/views/controls/textfield/textfield.h"
 
 #include <string>
 
 #include "base/debug/trace_event.h"
 #include "grit/ui_strings.h"
@@ skipping 212 matching lines @@
 void Textfield::SetFontList(const gfx::FontList& font_list) {
   GetRenderText()->SetFontList(font_list);
   OnCaretBoundsChanged();
   PreferredSizeChanged();
 }
 
 base::string16 Textfield::GetPlaceholderText() const {
   return placeholder_text_;
 }
 
+void Textfield::ShowImeIfNeeded() {
+  GetInputMethod()->ShowImeIfNeeded();
+}
+
 bool Textfield::IsIMEComposing() const {
   return model_->HasCompositionText();
 }
 
 const gfx::Range& Textfield::GetSelectedRange() const {
   return GetRenderText()->selection();
 }
 
 void Textfield::SelectRange(const gfx::Range& range) {
   model_->SelectRange(range);
@@ skipping 213 matching lines @@
     return (text_changed || cursor_changed);
   }
   return false;
 }
 
 bool Textfield::OnMousePressed(const ui::MouseEvent& event) {
   OnBeforeUserAction();
   TrackMouseClicks(event);
 
   if (!controller_ || !controller_->HandleMouseEvent(this, event)) {
-    if (event.IsOnlyLeftMouseButton() || event.IsOnlyRightMouseButton())
+    if (event.IsOnlyLeftMouseButton() || event.IsOnlyRightMouseButton()) {
       RequestFocus();
+      ShowImeIfNeeded();
+    }
 
     if (event.IsOnlyLeftMouseButton()) {
       initiating_drag_ = false;
       bool can_drag = true;
 
       switch (aggregated_clicks_) {
         case 0:
           if (can_drag &&
               GetRenderText()->IsPointInSelection(event.location())) {
             initiating_drag_ = true;
@@ skipping 149 matching lines @@
   static HCURSOR arrow = LoadCursor(NULL, IDC_ARROW);
   return text_cursor ? ibeam : arrow;
 #endif
 }
 
 void Textfield::OnGestureEvent(ui::GestureEvent* event) {
   switch (event->type()) {
     case ui::ET_GESTURE_TAP_DOWN:
       OnBeforeUserAction();
       RequestFocus();
+      ShowImeIfNeeded();
+
       // We don't deselect if the point is in the selection
       // because TAP_DOWN may turn into a LONG_PRESS.
       if (!GetRenderText()->IsPointInSelection(event->location()) &&
           MoveCursorTo(event->location(), false))
         SchedulePaint();
       OnAfterUserAction();
       event->SetHandled();
       break;
     case ui::ET_GESTURE_SCROLL_UPDATE:
       OnBeforeUserAction();
@@ skipping 816 matching lines @@
 void Textfield::CreateTouchSelectionControllerAndNotifyIt() {
   if (!touch_selection_controller_) {
     touch_selection_controller_.reset(
         ui::TouchSelectionController::create(this));
   }
   if (touch_selection_controller_)
     touch_selection_controller_->SelectionChanged();
 }
 
 }  // namespace views