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Motif and CDE 2.1 Style Guide Reference

Range Click Technique

Reference

Description

The range click technique is a group selection technique in which a contiguous range of elements can be selected or deselected by indicating each end of the range in discrete actions. The following describes the steps for mouse-based and keyboard-based techniques:

Mouse-based range click technique

  1. Click the SELECT button at one end of a range of (generally text) elements.

  2. Move the mouse to the other end of the range.

  3. Click the ADJUST button at the other end of the range.

    4. Mouse-based range click technique, forcing toggle mode

    1. Click Ctrl SELECT at one end of a range of elements.

    2. Move the mouse to the other end of the range.

    3. Click the ADJUST button at the other end of the range.

      4. Keyboard-based range click technique

      1. Press Select, Space (unless in text), or Ctrl Space with the cursor at one end of a range of elements.

      2. Use keyboard navigation to move the cursor to the other end of the range.

      3. Press Shift Select, Shift Space (unless in text), or Ctrl Shift Space.

        4. When to Use

        Required
        Support use of the range click technique only when the elements in the scope form a natural sequential order, and when the most likely set of elements to be selected is a subsequence of those elements. This is most common in text and sometimes true in lists.

        Required
        Support the mouse-based range swipe technique in toggle mode only when discontiguous selections are supported.

        Required
        Support use of the keyboard-based range click technique in normal mode only when a text cursor is used for all navigation between the two ends of the range. The result of attempted use in other cases is undefined.

        Guidelines

        Required
        After the user uses a mouse-based range click technique:

        1. Define the current selection region to consist of the identified range.

        2. Identify the anchor point to be the point at which the SELECT button was clicked.

        3. Identify the anchor element to be the element, if any, within the selection region nearest to the anchor point.

          4. Required
          After the user uses a mouse-based range click technique, place the active cursor at one of the following:

          1. The point at which ADJUST is clicked, if it can be placed there

          2. If it is an element cursor, on the element at the end of the range at which the ADJUST button is clicked

          3. If there are no elements in the range, where the cursor previously was in the scope

            4. Required
            When the user uses the range click technique in select mode:

            1. Select all the elements in the indicated range.

            2. Deselect all other elements in the scope.

              3. Required
              If currently in select mode and the user uses the range click technique by clicking Ctrl SELECT in place of SELECT, activate toggle mode.

              Required
              When the user is using the range click technique in toggle mode:

              1. Toggle all elements in the indicated range, based on the toggling policy.

              2. Do not change the selection state of the other elements in the scope.

                3. Required
                After the user uses a keyboard-based range click technique:

                1. Define the current selection region to consist of the identified range.

                2. Identify the anchor point to be the point at which the user pressed Select, Space (unless in text), or Ctrl Space.

                3. Identify the anchor element to be the element, if any, within the selection region nearest to the anchor point.

                  4. Required
                  When the user is using the keyboard-based range click technique in normal mode:

                  1. Select all the elements in the indicated range.

                  2. Deselect all other elements in the scope.

                    3. Required
                    When the user is using the keyboard-based range click technique in add mode, and contiguous selections are required:

                    1. Select all the elements in the indicated range.

                    2. Deselect all other elements in the scope.

                      3. Required
                      When the user is using the keyboard-based range click technique in add mode, and discontiguous selections are allowed:

                      1. Toggle all elements in the indicated range, based on the toggling policy.

                      2. Do not change the selection state of the other elements.

                        3. Essential Related Topics

                        For more information, see the Selection Modes, Selection Policies, and Selection Techniques reference pages.

                        Supplemental Related Topics

                        For more information, see the Area Click Technique, Range Adjust Click Technique, Range Adjust Swipe Technique, Range Swipe Technique, and Selection Models reference pages.

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