text: // 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.
  
  #ifndef UI_VIEWS_BUBBLE_BUBBLE_FRAME_VIEW_H_
  #define UI_VIEWS_BUBBLE_BUBBLE_FRAME_VIEW_H_
  
  #include "base/compiler_specific.h"
  #include "base/gtest_prod_util.h"
  #include "base/macros.h"
  #include "ui/gfx/geometry/insets.h"
  #include "ui/views/controls/button/vector_icon_button_delegate.h"
  #include "ui/views/window/non_client_view.h"
  
  namespace gfx {
  class FontList;
  }
  
  namespace views {
  
  class Label;
  class Button;
  class BubbleBorder;
  class ImageView;
  
  // The non-client frame view of bubble-styled widgets.
  class VIEWS_EXPORT BubbleFrameView : public NonClientFrameView,
                                       public VectorIconButtonDelegate {
   public:
    // Internal class name.
    static const char kViewClassName[];
  
    BubbleFrameView(const gfx::Insets& title_margins,
                    const gfx::Insets& content_margins);
    ~BubbleFrameView() override;
  
    // Creates a close button used in the corner of the dialog.
    static Button* CreateCloseButton(VectorIconButtonDelegate* delegate);
  
    // NonClientFrameView overrides:
    gfx::Rect GetBoundsForClientView() const override;
    gfx::Rect GetWindowBoundsForClientBounds(
        const gfx::Rect& client_bounds) const override;
    bool GetClientMask(const gfx::Size& size, gfx::Path* path) const override;
    int NonClientHitTest(const gfx::Point& point) override;
    void GetWindowMask(const gfx::Size& size, gfx::Path* window_mask) override;
    void ResetWindowControls() override;
    void UpdateWindowIcon() override;
    void UpdateWindowTitle() override;
    void SizeConstraintsChanged() override;
  
    // Set the FontList to be used for the title of the bubble.
    // Caller must arrange to update the layout to have the call take effect.
    void SetTitleFontList(const gfx::FontList& font_list);
  
    // View overrides:
    const char* GetClassName() const override;
    gfx::Insets GetInsets() const override;
    gfx::Size GetPreferredSize() const override;
    gfx::Size GetMinimumSize() const override;
    gfx::Size GetMaximumSize() const override;
    void Layout() override;
    void OnPaint(gfx::Canvas* canvas) override;
    void PaintChildren(const ui::PaintContext& context) override;
    void OnThemeChanged() override;
    void OnNativeThemeChanged(const ui::NativeTheme* theme) override;
  
    // Overridden from VectorIconButtonDelegate:
    void ButtonPressed(Button* sender, const ui::Event& event) override;
  
    // Use bubble_border() and SetBubbleBorder(), not border() and SetBorder().
    BubbleBorder* bubble_border() const { return bubble_border_; }
    void SetBubbleBorder(std::unique_ptr<BubbleBorder> border);
  
    gfx::Insets content_margins() const { return content_margins_; }
  
    void SetFootnoteView(View* view);
  
    // Given the size of the contents and the rect to point at, returns the bounds
    // of the bubble window. The bubble's arrow location may change if the bubble
    // does not fit on the monitor and |adjust_if_offscreen| is true.
    gfx::Rect GetUpdatedWindowBounds(const gfx::Rect& anchor_rect,
                                     const gfx::Size& client_size,
                                     bool adjust_if_offscreen);
  
    bool close_button_clicked() const { return close_button_clicked_; }
  
    Button* GetCloseButtonForTest() { return close_; }
  
   protected:
    // Returns the available screen bounds if the frame were to show in |rect|.
    virtual gfx::Rect GetAvailableScreenBounds(const gfx::Rect& rect) const;
  
    bool IsCloseButtonVisible() const;
    gfx::Rect GetCloseButtonMirroredBounds() const;
  
   private:
    FRIEND_TEST_ALL_PREFIXES(BubbleFrameViewTest, GetBoundsForClientView);
    FRIEND_TEST_ALL_PREFIXES(BubbleDelegateTest, CloseReasons);
    FRIEND_TEST_ALL_PREFIXES(BubbleDialogDelegateTest, CloseMethods);
  
    // Mirrors the bubble's arrow location on the |vertical| or horizontal axis,
    // if the generated window bounds don't fit in the monitor bounds.
    void MirrorArrowIfOffScreen(bool vertical,
                                const gfx::Rect& anchor_rect,
                                const gfx::Size& client_size);
  
    // Adjust the bubble's arrow offsets if the generated window bounds don't fit
    // in the monitor bounds.
    void OffsetArrowIfOffScreen(const gfx::Rect& anchor_rect,
                                const gfx::Size& client_size);
  
    // Calculates the size needed to accommodate the given client area.
    gfx::Size GetSizeForClientSize(const gfx::Size& client_size) const;
  
    // The bubble border.
    BubbleBorder* bubble_border_;
  
    // Margins around the title label.
    gfx::Insets title_margins_;
  
    // Margins between the content and the inside of the border, in pixels.
    gfx::Insets content_margins_;
  
    // The optional title icon, title, and (x) close button.
    views::ImageView* title_icon_;
    Label* title_;
    Button* close_;
  
    // A view to contain the footnote view, if it exists.
    View* footnote_container_;
  
    // Whether the close button was clicked.
    bool close_button_clicked_;
  
    DISALLOW_COPY_AND_ASSIGN(BubbleFrameView);
  };
  
  }  // namespace views
  
  #endif  // UI_VIEWS_BUBBLE_BUBBLE_FRAME_VIEW_H_
  