Keyboard Navigation (managing focus) basics

• Tabindex= "-1”" Can set focus on an element without adding to tab order
  • Ideal for Widgets
    
    
• Tabindex="0”" Place focusable elements in the tab order in document order
  
  
• Tabindex = "> 0”" Same as today's tabindex
  
  
• Tabindex changes supported in IE, Opera 9, and FF 1.5 or higher
  • Supported by all renderable elements
    
    
• ARIA aria:activedescendant="child id" tells the at what child is currently active for the focused widget
  • Example: a "grid" (spreadsheet) would indicate which "gridcell" has focus
  • Use when don't want to manage tabindex for lots of children (spreadsheets, listbox, menus)