Instant API: tell page whether the browser is capturing key strokes.

chrome/browser/ui/views/omnibox/omnibox_view_views.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/ui/views/omnibox/omnibox_view_views.h"
 
 #include "base/logging.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
@@ skipping 350 matching lines @@
     // controls.
     model()->OnControlKeyChanged(false);
     return true;
   }
   return false;
 }
 
 void OmniboxViewViews::HandleMousePressEvent(const ui::MouseEvent& event) {
   select_all_on_mouse_release_ =
       (event.IsOnlyLeftMouseButton() || event.IsOnlyRightMouseButton()) &&
-      !textfield_->HasFocus();
-  // Restore caret visibility whenever the user clicks in the the omnibox. This
-  // is not always covered by OnSetFocus() because when clicking while the
-  // omnibox has invisible focus does not trigger a new OnSetFocus() call.
-  model()->SetCaretVisibility(true);
+      (!textfield_->HasFocus() || !model()->is_caret_visible());
+  // Restore caret visibility whenever the user clicks in the omnibox in a way
+  // that would give it focus.  We must handle this case separately here because
+  // if the omnibox currently has invisible focus, the mouse event won't trigger
+  // either SetFocus() or OmniboxEditModel::OnSetFocus().
+  if (select_all_on_mouse_release_)
+    model()->SetCaretVisibility(true);
 }
 
 void OmniboxViewViews::HandleMouseDragEvent(const ui::MouseEvent& event) {
   select_all_on_mouse_release_ = false;
 }
 
 void OmniboxViewViews::HandleMouseReleaseEvent(const ui::MouseEvent& event) {
   if ((event.IsOnlyLeftMouseButton() || event.IsOnlyRightMouseButton()) &&
       select_all_on_mouse_release_) {
     // Select all in the reverse direction so as not to scroll the caret
@@ skipping 186 matching lines @@
   // the text, or in the middle of composition.
   ui::Range sel;
   textfield_->GetSelectedRange(&sel);
   bool no_inline_autocomplete =
       sel.GetMax() < GetTextLength() || textfield_->IsIMEComposing();
 
   model()->StartAutocomplete(!sel.is_empty(), no_inline_autocomplete);
 }
 
 void OmniboxViewViews::SetFocus() {
-  // Restore caret visibility if focused explicitly. We need to do this here
-  // because if we already have invisible focus, the RequestFocus() call below
-  // will short-circuit, preventing us from reaching
-  // OmniboxEditModel::OnSetFocus(), which handles restoring visibility when we
-  // didn't previously have focus.
-  model()->SetCaretVisibility(true);
   // In views-implementation, the focus is on textfield rather than OmniboxView.
   textfield_->RequestFocus();
+  // Restore caret visibility if focus is explicitly requested. This is
+  // necessary because if we already have invisible focus, the RequestFocus()
+  // call above will short-circuit, preventing us from reaching
+  // OmniboxEditModel::OnSetFocus(), which handles restoring visibility when the
+  // omnibox regains focus after losing focus.
+  model()->SetCaretVisibility(true);
 }
 
 void OmniboxViewViews::ApplyCaretVisibility() {
   if (textfield_->cursor_color() != textfield_->background_color())
     visible_caret_color_ = textfield_->cursor_color();
   // Setting the color of the text cursor (caret) to the background color
   // effectively hides it.
   textfield_->SetCursorColor(model()->is_caret_visible() ?
       visible_caret_color_ : textfield_->background_color());
 }
@@ skipping 375 matching lines @@
   if (!text.empty()) {
     // Record this paste, so we can do different behavior.
     model()->on_paste();
     // Force a Paste operation to trigger the text_changed code in
     // OnAfterPossibleChange(), even if identical contents are pasted into the
     // text box.
     text_before_change_.clear();
     textfield_->ReplaceSelection(text);
   }
 }