chrome/browser/ui/views/desktop_media_picker_views.h

   1 // Copyright 2014 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 CHROME_BROWSER_UI_VIEWS_DESKTOP_MEDIA_PICKER_VIEWS_H_
   6 #define CHROME_BROWSER_UI_VIEWS_DESKTOP_MEDIA_PICKER_VIEWS_H_
   7
   8 #include "chrome/browser/media/desktop_media_list_observer.h"
   9 #include "chrome/browser/media/desktop_media_picker.h"
  10 #include "ui/views/window/dialog_delegate.h"
  11
  12 namespace views {
  13 class ImageView;
  14 class Label;
  15 }  // namespace views
  16
  17 class DesktopMediaPickerDialogView;
  18 class DesktopMediaPickerViews;
  19 class DesktopMediaSourceView;
  20
  21 // View that shows a list of desktop media sources available from
  22 // DesktopMediaList.
  23 class DesktopMediaListView : public views::View,
  24                              public DesktopMediaListObserver {
  25  public:
  26   DesktopMediaListView(DesktopMediaPickerDialogView* parent,
  27                        scoped_ptr<DesktopMediaList> media_list);
  28   ~DesktopMediaListView() override;
  29
  30   void StartUpdating(content::DesktopMediaID dialog_window_id);
  31
  32   // Called by DesktopMediaSourceView when selection has changed.
  33   void OnSelectionChanged();
  34
  35   // Called by DesktopMediaSourceView when a source has been double-clicked.
  36   void OnDoubleClick();
  37
  38   // Returns currently selected source.
  39   DesktopMediaSourceView* GetSelection();
  40
  41   // views::View overrides.
  42   gfx::Size GetPreferredSize() const override;
  43   void Layout() override;
  44   bool OnKeyPressed(const ui::KeyEvent& event) override;
  45
  46  private:
  47   // DesktopMediaList::Observer interface
  48   void OnSourceAdded(int index) override;
  49   void OnSourceRemoved(int index) override;
  50   void OnSourceMoved(int old_index, int new_index) override;
  51   void OnSourceNameChanged(int index) override;
  52   void OnSourceThumbnailChanged(int index) override;
  53
  54   // Accepts whatever happens to be selected right now.
  55   void AcceptSelection();
  56
  57   DesktopMediaPickerDialogView* parent_;
  58   scoped_ptr<DesktopMediaList> media_list_;
  59   base::WeakPtrFactory<DesktopMediaListView> weak_factory_;
  60
  61   DISALLOW_COPY_AND_ASSIGN(DesktopMediaListView);
  62 };
  63
  64 // View used for each item in DesktopMediaListView. Shows a single desktop media
  65 // source as a thumbnail with the title under it.
  66 class DesktopMediaSourceView : public views::View {
  67  public:
  68   DesktopMediaSourceView(DesktopMediaListView* parent,
  69                          content::DesktopMediaID source_id);
  70   ~DesktopMediaSourceView() override;
  71
  72   // Updates thumbnail and title from |source|.
  73   void SetName(const base::string16& name);
  74   void SetThumbnail(const gfx::ImageSkia& thumbnail);
  75
  76   // Id for the source shown by this View.
  77   const content::DesktopMediaID& source_id() const { return source_id_; }
  78
  79   // Returns true if the source is selected.
  80   bool is_selected() const { return selected_; }
  81
  82   // views::View interface.
  83   const char* GetClassName() const override;
  84   void Layout() override;
  85   views::View* GetSelectedViewForGroup(int group) override;
  86   bool IsGroupFocusTraversable() const override;
  87   void OnPaint(gfx::Canvas* canvas) override;
  88   void OnFocus() override;
  89   void OnBlur() override;
  90   bool OnMousePressed(const ui::MouseEvent& event) override;
  91   void OnGestureEvent(ui::GestureEvent* event) override;
  92
  93  private:
  94   // Updates selection state of the element. If |selected| is true then also
  95   // calls SetSelected(false) for the source view that was selected before that
  96   // (if any).
  97   void SetSelected(bool selected);
  98
  99   DesktopMediaListView* parent_;
 100   content::DesktopMediaID source_id_;
 101
 102   views::ImageView* image_view_;
 103   views::Label* label_;
 104
 105   bool selected_;
 106
 107   DISALLOW_COPY_AND_ASSIGN(DesktopMediaSourceView);
 108 };
 109
 110 // Dialog view used for DesktopMediaPickerViews.
 111 class DesktopMediaPickerDialogView : public views::DialogDelegateView {
 112  public:
 113   DesktopMediaPickerDialogView(content::WebContents* parent_web_contents,
 114                                gfx::NativeWindow context,
 115                                DesktopMediaPickerViews* parent,
 116                                const base::string16& app_name,
 117                                const base::string16& target_name,
 118                                scoped_ptr<DesktopMediaList> media_list);
 119   ~DesktopMediaPickerDialogView() override;
 120
 121   // Called by parent (DesktopMediaPickerViews) when it's destroyed.
 122   void DetachParent();
 123
 124   // Called by DesktopMediaListView.
 125   void OnSelectionChanged();
 126   void OnDoubleClick();
 127
 128   // views::View overrides.
 129   gfx::Size GetPreferredSize() const override;
 130   void Layout() override;
 131
 132   // views::DialogDelegateView overrides.
 133   ui::ModalType GetModalType() const override;
 134   base::string16 GetWindowTitle() const override;
 135   bool IsDialogButtonEnabled(ui::DialogButton button) const override;
 136   base::string16 GetDialogButtonLabel(ui::DialogButton button) const override;
 137   bool Accept() override;
 138   void DeleteDelegate() override;
 139
 140   void OnMediaListRowsChanged();
 141
 142   DesktopMediaSourceView* GetMediaSourceViewForTesting(int index) const;
 143
 144  private:
 145   DesktopMediaPickerViews* parent_;
 146   base::string16 app_name_;
 147
 148   views::Label* label_;
 149   views::ScrollView* scroll_view_;
 150   DesktopMediaListView* list_view_;
 151
 152   DISALLOW_COPY_AND_ASSIGN(DesktopMediaPickerDialogView);
 153 };
 154
 155 // Implementation of DesktopMediaPicker for Views.
 156 class DesktopMediaPickerViews : public DesktopMediaPicker {
 157  public:
 158   DesktopMediaPickerViews();
 159   ~DesktopMediaPickerViews() override;
 160
 161   void NotifyDialogResult(content::DesktopMediaID source);
 162
 163   // DesktopMediaPicker overrides.
 164   void Show(content::WebContents* web_contents,
 165             gfx::NativeWindow context,
 166             gfx::NativeWindow parent,
 167             const base::string16& app_name,
 168             const base::string16& target_name,
 169             scoped_ptr<DesktopMediaList> media_list,
 170             const DoneCallback& done_callback) override;
 171
 172   DesktopMediaPickerDialogView* GetDialogViewForTesting() const {
 173     return dialog_;
 174   }
 175
 176  private:
 177   DoneCallback callback_;
 178
 179   // The |dialog_| is owned by the corresponding views::Widget instance.
 180   // When DesktopMediaPickerViews is destroyed the |dialog_| is destroyed
 181   // asynchronously by closing the widget.
 182   DesktopMediaPickerDialogView* dialog_;
 183
 184   DISALLOW_COPY_AND_ASSIGN(DesktopMediaPickerViews);
 185 };
 186
 187 #endif  // CHROME_BROWSER_UI_VIEWS_DESKTOP_MEDIA_PICKER_VIEWS_H_