Support the mouse-based browse technique only in
select mode, and only when at most one element in a scope can be
selected.
[ ]
Support the mouse-based browse technique only in
normal mode, and only when an element cursor is being used.
Mouse-Based Browse Technique
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When using the browse technique in select mode,
releasing the SELECT button on a selectable element does the following:
Selects that element
Deselects all other elements in the scope
Places the active cursor on that element
Keyboard-Based Browse Technique
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Using a navigation key to move the active cursor
within a selection scope in normal mode that results in an element
cursor being placed on a selectable element does the following:
Selects that element
Deselects all other elements in the scope
Identifies that element as an anchor element for
later use in adjustment of the selection
Defines the current selection region to consist
of the area taken up by that element
[ ]
Using a navigation key to move the active cursor
within a selection scope in normal mode that results in an element
cursor being placed on a selectable element identifies a point as
an anchor point for later use in adjustment of the selection. That
point is one of the following:
The pointer position (mouse-based
technique)
The cursor position (keyboard-based technique with
a text or graphics cursor)
The center of the element (keyboard-based technique
with an element cursor)