text: // 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.
  
  #ifndef CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_KEYWORD_HINT_VIEW_H_
  #define CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_KEYWORD_HINT_VIEW_H_
  
  #include <string>
  
  #include "base/compiler_specific.h"
  #include "base/macros.h"
  #include "ui/gfx/geometry/size.h"
  #include "ui/views/controls/button/button.h"
  
  class Profile;
  enum class OmniboxTint;
  
  namespace views {
  class Label;
  }
  
  // KeywordHintView is used by the location bar view to display a hint to the
  // user that pressing Tab will enter tab to search mode. The view is also
  // clickable, which has the same effect as pressing tab.
  //
  // Internally KeywordHintView uses two labels to render the text, and draws
  // the tab image itself.
  //
  // NOTE: This should really be called LocationBarKeywordHintView, but I
  // couldn't bring myself to use such a long name.
  class KeywordHintView : public views::Button {
   public:
    KeywordHintView(views::ButtonListener* listener,
                    Profile* profile,
                    OmniboxTint tint);
    ~KeywordHintView() override;
  
    void SetKeyword(const base::string16& keyword,
                    bool popup_open,
                    OmniboxTint tint);
  
    // views::View:
    gfx::Insets GetInsets() const override;
    // The minimum size is just big enough to show the tab.
    gfx::Size GetMinimumSize() const override;
    const char* GetClassName() const override;
    void Layout() override;
    gfx::Size CalculatePreferredSize() const override;
    void OnBoundsChanged(const gfx::Rect& previous_bounds) override;
  
   private:
    // Creates a label for non-chip text.
    views::Label* CreateLabel(SkColor text_color, SkColor background_color);
  
    int GetCornerRadius() const;
  
    Profile* profile_;
  
    views::Label* leading_label_;
    views::View* chip_container_;
    views::Label* chip_label_;
    views::Label* trailing_label_;
  
    base::string16 keyword_;
  
    DISALLOW_COPY_AND_ASSIGN(KeywordHintView);
  };
  
  #endif  // CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_KEYWORD_HINT_VIEW_H_
  