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NAMEArea Click Technique — Reference DescriptionThe area click technique is a group selection technique in
which a rectangular area of elements can be selected or deselected
by indicating each corner of the area in discrete actions. The following
describes the steps for mouse-based and keyboard-based techniques: - Mouse-based area click technique
Click the SELECT button at the initial corner of
a rectangular area. Move the mouse to the opposite corner of the area. Click the ADJUST button at that opposite corner.
- Mouse-based area click technique, forcing toggle
mode
Click Ctrl SELECT
at the initial corner of a rectangular area. Move the mouse to the opposite corner of the area. Click the ADJUST button at that opposite corner.
- Keyboard-based area click technique
Press Select,
Space (unless in text) or Ctrl
Space with the cursor at the
initial corner of a rectangular area. Use keyboard navigation to move the cursor to the
opposite corner of the area. Press Shift Select,
Shift Space
(unless in text) or Ctrl Shift
Space.
When to Use- Required
Support the area click technique only when a common
selection in the scope consists of a set of spatially adjacent elements. - Required
Support the area click technique only when discontiguous
selections are allowed. - Required
Support the keyboard-based area click technique
in normal mode only when a text cursor is used for all navigation
between the two corners of the area. The result of attempted use
in other cases is undefined.
Guidelines- Required
Define the current selection region to consist of
the specified area as follows: Enlarged to include the element, if
any, on which the technique was initiated Enlarged, if indicated by the end-point inclusion
policy, to include the element, if any, on which the technique finished
Mouse-Based Techniques- Required
After a mouse-based area click technique is used: Identify the anchor point to be the
point at which the SELECT button was clicked. Identify the anchor element to be the element, if
any, within the selection region nearest to the anchor point.
- Required
After a mouse-based area click technique, place
the active cursor as follows: At the point at which the ADJUST button
was clicked, if it can be placed there If using an element cursor, on some element within
the region If there are no elements in the region, where the
cursor previously was in the scope
- Required
When using the area click technique in select mode: Select all the elements in the selection
region. Deselect all other elements in the scope.
- Required
If currently in select mode, clicking Ctrl
SELECT instead of SELECT causes the area click technique to act
as if toggle mode were in use. - Required
When using the area click technique in toggle mode: Toggle all elements in the selection
region, based on the toggling policy. Do not change the selection state of the other elements
in the scope.
Keyboard-Based Techniques- Required
After a keyboard-based area click technique is used: Identify the anchor point to be the
point at which Select, Space
(unless in text), or Ctrl Space
was pressed. Identify the anchor element to be the element, if
any, within the selection region nearest to the anchor point.
- Required
When using the keyboard-based area click technique
in normal mode: Select all the elements in the selection
region. Deselect all other elements in the scope.
- Required
When using the keyboard-based area click technique
in add mode: Toggle all elements in the selection
region, based on the toggling policy. Do not change the selection state of the other elements
in the scope.
Essential Related TopicsFor more information, see the Adjustment Techniques,
Selection Policies,
and Selection Techniques
reference pages. Supplemental Related TopicsFor more information, see the Area Adjust Click Technique,
Area Click Technique,
Area Swipe Technique,
Range
Adjust Swipe Technique, Selection Models,
Selection Modes, and
Touch
Adjust Swipe Technique reference
pages. |
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