vcl/inc/osx/a11yfocustracker.hxx

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  19
  20 #ifndef INCLUDED_VCL_INC_OSX_A11YFOCUSTRACKER_HXX
  21 #define INCLUDED_VCL_INC_OSX_A11YFOCUSTRACKER_HXX
  22
  23 #include <com/sun/star/accessibility/XAccessible.hpp>
  24
  25 #include "keyboardfocuslistener.hxx"
  26
  27 #include <rtl/instance.hxx>
  28
  29 #include <tools/link.hxx>
  30 #include <vcl/vclevent.hxx>
  31 #include <set>
  32
  33 namespace vcl { class Window; }
  34 class ToolBox;
  35 class DocumentFocusListener;
  36
  37
  38 class AquaA11yFocusTracker
  39 {
  40
  41 public:
  42     AquaA11yFocusTracker();
  43
  44     ~AquaA11yFocusTracker();
  45
  46     css::uno::Reference< css::accessibility::XAccessible > const & getFocusedObject() { return m_xFocusedObject; };
  47
  48     // sets the currently focus object and notifies the FocusEventListener (if any)
  49     void setFocusedObject(const css::uno::Reference< css::accessibility::XAccessible >& xAccessible);
  50
  51     // may evolve to add/remove later
  52     void setFocusListener(const rtl::Reference< KeyboardFocusListener >& aFocusListener) { m_aFocusListener = aFocusListener; };
  53
  54 protected:
  55
  56     // received a WINDOW_GETFOCUS event for this window
  57     void window_got_focus(vcl::Window *pWindow);
  58
  59     // received a TOOLBOX_HIGHLIGHT event for this window
  60     void toolbox_highlight_on(vcl::Window *pWindow);
  61
  62     // received a TOOLBOX_HIGHLIGHTOFF event for this window
  63     void toolbox_highlight_off(vcl::Window const *pWindow);
  64
  65     // received a TABPAGE_ACTIVATE event for this window
  66     void tabpage_activated(vcl::Window *pWindow);
  67
  68     // received a MENU_HIGHLIGHT event for this window
  69     void menu_highlighted(const ::VclMenuEvent *pEvent);
  70
  71     // toolbox items are widgets in gtk+ and Cocoa
  72     void notify_toolbox_item_focus(ToolBox *pToolBox);
  73
  74     // toolbox item opened a floating window (e.g. color chooser)
  75     void toolbox_open_floater(vcl::Window *pWindow);
  76
  77     // callback function for Application::addEventListener
  78     static void WindowEventHandler(void * pThis, VclSimpleEvent&);
  79
  80 private:
  81     // the accessible object that has the keyboard focus (if any)
  82     css::uno::Reference< css::accessibility::XAccessible > m_xFocusedObject;
  83
  84     // the listener for focus events
  85     rtl::Reference< KeyboardFocusListener > m_aFocusListener;
  86
  87     // the list of Windows that need deeper (focus) investigation
  88     std::set<VclPtr<vcl::Window>> m_aDocumentWindowList;
  89
  90     // the link object needed for Application::addEventListener
  91     Link<VclSimpleEvent&,void> m_aWindowEventLink;
  92
  93     // the UNO XAccessibilityEventListener for Documents and other non VCL objects
  94     const rtl::Reference< DocumentFocusListener > m_xDocumentFocusListener;
  95 };
  96
  97 struct TheAquaA11yFocusTracker:
  98     rtl::Static<AquaA11yFocusTracker, TheAquaA11yFocusTracker>
  99 {};
 100
 101 #endif // INCLUDED_VCL_INC_OSX_A11YFOCUSTRACKER_HXX
 102
 103 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */