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Motif and CDE 2.1 Style Guide Reference
Input Focus
Reference
Description
Input focus, or focus, identifies the place to which keyboard input is
directed.
Figure 36. Focus on a Text-Entry Field.
When to Use
RequiredWhen the user has set the input focus in the workspace to track the
pointer, use an implicit focus policy to move focus from window to window by
always ensuring that the window under the pointer has the focus.
RequiredWhen the user has set the input focus in the workspace to be explicitly
changed, use an explicit focus policy to move focus from window to window.
RequiredWhen the user has set the input focus within a window to track the
pointer, use an implicit focus policy to move focus from control to control
within that window by always ensuring that the control under the pointer has
the focus.
RequiredWhen the user has set the input focus within a window to be explicitly
changed, use an explicit focus policy to move focus from control to control,
except within controls that are spring sensitive.
Guidelines
RequiredWhen an explicit focus policy is in use in a workspace, and the user
presses the SELECT button (optionally augmented by Shift and/or Ctrl) in a
window, move the focus to that window.
RequiredWhen an explicit focus policy is in use in a window, and the user presses
the SELECT button (possibly augmented by Shift and/or Ctrl) in a control that
can take focus, in addition to performing any action the control binds to the
button press, move the focus to the control, unless the control is used to
change the visible portion of some area (for example, a scroll bar).
RequiredWhen a window that uses an explicit keyboard focus policy acquires focus
through either keyboard navigation or a button press (but not by pressing
SELECT [possibly augmented by Shift and/or Ctrl ] in a control in that window)
causing that control to take focus, then move the focus to the control that
last had focus in the window if the following are true:
The window had the focus at some time in the past (whether or not it has
been minimized since then)
The control that last had focus in the window is still able to receive
input focus
Otherwise, move focus to either of the following:
The control with which the user is most likely to want to interact
The initial control of the first tab group in the window
RequiredDo not change the state, appearance, or behavior of a control when the
user uses the keyboard to move the input focus to the control, except for
showing focus emphasis. For example, when the user moves through a set of
radio buttons with the directional keys, do not change the state of any of the
radio buttons.
RequiredWhen the user presses Ctrl SELECT on a control that can take focus, move
focus to the control but do not perform any other action unless pressing Ctrl
SELECT already has a predefined meaning in that control.
RecommendedWhen the user uses a pointing device to manipulate a control such as a
scroll bar or a split bar that changes the visible portion of some area, do
not move the focus to that control.
RecommendedDo not change the input focus as a result of a direct manipulation
operation except for those that use the SELECT button, possibly augmented by
Shift and/or Ctrl.
Essential Related Topics
For more information, see the Active Window reference page.
Supplemental Related Topics
For more information, see the Cursor, Keyboard (Device), Mouse
(Device), and Window Navigation reference pages.
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