ui/views/bubble/bubble_frame_view.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef UI_VIEWS_BUBBLE_BUBBLE_FRAME_VIEW_H_
   6 #define UI_VIEWS_BUBBLE_BUBBLE_FRAME_VIEW_H_
   7
   8 #include "base/basictypes.h"
   9 #include "base/compiler_specific.h"
  10 #include "base/gtest_prod_util.h"
  11 #include "ui/gfx/geometry/insets.h"
  12 #include "ui/views/controls/button/button.h"
  13 #include "ui/views/window/non_client_view.h"
  14
  15 namespace gfx {
  16 class FontList;
  17 }
  18
  19 namespace views {
  20
  21 class Label;
  22 class LabelButton;
  23 class BubbleBorder;
  24 class ImageView;
  25
  26 // The non-client frame view of bubble-styled widgets.
  27 class VIEWS_EXPORT BubbleFrameView : public NonClientFrameView,
  28                                      public ButtonListener {
  29  public:
  30   // Internal class name.
  31   static const char kViewClassName[];
  32
  33   explicit BubbleFrameView(const gfx::Insets& content_margins);
  34   ~BubbleFrameView() override;
  35
  36   // Insets to make bubble contents align horizontal with the bubble title.
  37   // NOTE: this does not take into account whether a title actually exists.
  38   static gfx::Insets GetTitleInsets();
  39
  40   // Creates a close button used in the corner of the dialog.
  41   static LabelButton* CreateCloseButton(ButtonListener* listener);
  42
  43   // NonClientFrameView overrides:
  44   gfx::Rect GetBoundsForClientView() const override;
  45   gfx::Rect GetWindowBoundsForClientBounds(
  46       const gfx::Rect& client_bounds) const override;
  47   int NonClientHitTest(const gfx::Point& point) override;
  48   void GetWindowMask(const gfx::Size& size, gfx::Path* window_mask) override;
  49   void ResetWindowControls() override;
  50   void UpdateWindowIcon() override;
  51   void UpdateWindowTitle() override;
  52   void SizeConstraintsChanged() override;
  53
  54   // Set the FontList to be used for the title of the bubble.
  55   // Caller must arrange to update the layout to have the call take effect.
  56   void SetTitleFontList(const gfx::FontList& font_list);
  57
  58   // View overrides:
  59   gfx::Insets GetInsets() const override;
  60   gfx::Size GetPreferredSize() const override;
  61   gfx::Size GetMinimumSize() const override;
  62   void Layout() override;
  63   const char* GetClassName() const override;
  64   void ChildPreferredSizeChanged(View* child) override;
  65   void OnThemeChanged() override;
  66   void OnNativeThemeChanged(const ui::NativeTheme* theme) override;
  67
  68   // Overridden from ButtonListener:
  69   void ButtonPressed(Button* sender, const ui::Event& event) override;
  70
  71   // Use bubble_border() and SetBubbleBorder(), not border() and SetBorder().
  72   BubbleBorder* bubble_border() const { return bubble_border_; }
  73   void SetBubbleBorder(scoped_ptr<BubbleBorder> border);
  74
  75   gfx::Insets content_margins() const { return content_margins_; }
  76
  77   void SetTitlebarExtraView(View* view);
  78
  79   // Given the size of the contents and the rect to point at, returns the bounds
  80   // of the bubble window. The bubble's arrow location may change if the bubble
  81   // does not fit on the monitor and |adjust_if_offscreen| is true.
  82   gfx::Rect GetUpdatedWindowBounds(const gfx::Rect& anchor_rect,
  83                                    gfx::Size client_size,
  84                                    bool adjust_if_offscreen);
  85
  86  protected:
  87   // Returns the available screen bounds if the frame were to show in |rect|.
  88   virtual gfx::Rect GetAvailableScreenBounds(const gfx::Rect& rect);
  89
  90   bool IsCloseButtonVisible() const;
  91   gfx::Rect GetCloseButtonBounds() const;
  92
  93  private:
  94   FRIEND_TEST_ALL_PREFIXES(BubbleFrameViewTest, GetBoundsForClientView);
  95
  96   // Mirrors the bubble's arrow location on the |vertical| or horizontal axis,
  97   // if the generated window bounds don't fit in the monitor bounds.
  98   void MirrorArrowIfOffScreen(bool vertical,
  99                               const gfx::Rect& anchor_rect,
 100                               const gfx::Size& client_size);
 101
 102   // Adjust the bubble's arrow offsets if the generated window bounds don't fit
 103   // in the monitor bounds.
 104   void OffsetArrowIfOffScreen(const gfx::Rect& anchor_rect,
 105                               const gfx::Size& client_size);
 106
 107   // Calculates the size needed to accommodate the given client area.
 108   gfx::Size GetSizeForClientSize(const gfx::Size& client_size) const;
 109
 110   // The bubble border.
 111   BubbleBorder* bubble_border_;
 112
 113   // Margins between the content and the inside of the border, in pixels.
 114   gfx::Insets content_margins_;
 115
 116   // The optional title icon, title, and (x) close button.
 117   views::ImageView* title_icon_;
 118   Label* title_;
 119   LabelButton* close_;
 120
 121   // When supplied, this view is placed in the titlebar between the title and
 122   // (x) close button.
 123   View* titlebar_extra_view_;
 124
 125   DISALLOW_COPY_AND_ASSIGN(BubbleFrameView);
 126 };
 127
 128 }  // namespace views
 129
 130 #endif  // UI_VIEWS_BUBBLE_BUBBLE_FRAME_VIEW_H_