Alex, I see I missed #3 and #4. See below... On 8/21/12 4:51 AM, Alexander Surkov wrote: > Hi, Pete. Few notes. > > 1) "explicit-name" description looks a little bit complicated. The > following short sentence explains well the idea of the attribute: > "A true value indicates that the accessible name is different from, > and more meaningful than, the text that is returned from > IAccessibleText::text." > > 2) "sort". > > > Comments: If the value is ascending or descending this indicates that an >> object's items are sorted and the sorting algorithm used. > why is "items are sorted" not enough and it makes sense to mention the > sorting algorithm? > > 3) "atomic" > >> True when all the objects in the accessibility tree below this object should >> be presented as a whole > maybe "from subtree" instead "in the accessibility tree below this object"? How's this: True when this object and its subtree should be presented as a whole, when changes within it are considered important enough to be presented automatically. > > 4) "event-from-input". It's worth to notice that it works in-process > only since it doesn't make much sense for out-of-process client (two > different events may be targeted to the same object). Is this set on the object that the event was fired on? Assuming that, how about this: True if the root cause of the event fired on this object was explicit user input (as opposed to a programmatic change). This attribute is only useful for in-process Assistive Technology which can check the attribute on the event handling thread.
> > Thank you. > Alex. > > > On Thu, Aug 16, 2012 at 2:04 PM, Pete Brunet <p...@a11ysoft.com> wrote: >> Here is a list of some new IA2 object attributes. Thanks for a pre-review >> by Alex and Jamie. >> >> Please review these additions. The current set is listed at: >> https://www.linuxfoundation.org/collaborate/workgroups/Accessibility/IAccessible2/ObjectAttributes >> >> In new section, "Common Attributes" >> >> Name: explicit-name >> Values: true, false >> Default: false >> Reference: >> Comments: (see the following) >> >> Indicates that a content author has provided ancillary text in addition >> to the primary text of an object and that the server has chosen to use >> that ancillary text for this object's accessible name in preference to >> the object's primary text. >> >> A true value indicates that the accessible name is different from, and >> more meaningful than, the text that is returned from >> IAccessibleText::text. Typically an object's accessible name is taken >> directly from the object's textual content and is equivalent to the text >> from IAccessibleText::text, but a true value is returned when the server >> has chosen to use ancillary text rather than the accessible's primary >> textual content when generating the accessible name. >> >> Some examples that could be seen in an IAccessible2 implementation of a >> web browser are: >> >> 1) <a href="http://www.adomain.com";>content</a> In this case the >> accessible name will be "content" and explicit-name will be false. >> >> 2) <a href="http://www.adomain.com"; title="a title">content</a> If the >> title text is used for the accessible name, explicit-name will be true. >> >> 3) <a href="http://www.adomain.com"; aria-label="a label">content</a> If >> the aria-label text is used for accessible name, explicit-name will be true. >> >> 4) <div id="label">a label</div><div role="radio" >> aria-labelledby="label">content</div> If the label text is used for the >> accessible name, explicit-name will be true. >> >> If this value is true assistive technology may choose to present >> the user with the accessible name rather than the text from >> IAccessibleText::text. >> >> and these from the Gecko spec at >> https://developer.mozilla.org/en-US/docs/Accessibility/AT-APIs/Gecko/Attrs >> >> Name: draggable >> Values: true, false >> Default: false >> Reference: >> Comments: true when the accessible object can be grabbed. >> >> Name: dropeffect >> Values: copy, move, link, execute, popup, none >> Default: none >> Reference: >> http://www.w3.org/TR/wai-aria/states_and_properties#aria-dropeffect >> Comments: Indicates what functions can be performed when the dragged object >> is released on the drop target. The values are defined as: >> - copy: A duplicate of the source object will be dropped into the target. >> - move: The source object will be removed from its current location and >> dropped into the target. >> - link: A reference or shortcut to the dragged object will be created in >> the target object. >> - execute: A function supported by the drop target is executed, using the >> drag source as an input. >> - popup: There is a popup menu or dialog that allows the user to choose one >> of the drag operations (copy, move, link, execute) and any other drag >> functionality, such as cancel. >> - none: No operation can be performed; effectively cancels the drag >> operation if an attempt is made to drop on this object. >> >> Name: grabbed >> Values: true, false >> Default: false >> Reference: >> Comments: true when the accessible object has been selected for dragging. >> >> Name: sort >> Values: ascending, descending, none >> Default: none >> Reference: http://www.w3.org/TR/wai-aria/states_and_properties#aria-sort >> Comments: If the value is ascending or descending this indicates that an >> object's items are sorted and the sorting algorithm used. >> >> In new section, "Live Region Attributes" >> >> Name: atomic >> Values: true, false >> Default: false >> Reference: http://www.w3.org/TR/wai-aria/states_and_properties#aria-atomic >> Comments: True when all the objects in the accessibility tree below this >> object should be presented as a whole, when changes within it are considered >> important enough to be presented automatically. >> >> Name: live >> Values: off, polite, assertive >> Default: off >> Reference: http://www.w3.org/TR/wai-aria/states_and_properties#aria-live >> Comments: A hint as to whether changes within the current accessibility >> subtree should be automatically presented. Additional information may be >> provide by the object attributes atomic and relevant. The values are defined >> as: >> - off: Updates to the region will not be presented to the user unless the >> assistive technology is currently focused on that region. >> - polite: Assistive technologies should announce updates at the next >> graceful opportunity, such as at the end of speaking the current sentence or >> when the user pauses typing. >> - assertive: This information has the highest priority and assistive >> technologies should notify the user immediately. Because an interruption may >> disorient users or cause them to not complete their current task, authors >> should not use the assertive value unless the interruption is imperative. >> >> Name: relevant >> Values: all, or a space delimited list of one or more of these values: >> additions, removals, text >> Default: additions text >> Reference: http://www.w3.org/TR/wai-aria/states_and_properties#aria-relevant >> Comments: Describes what kinds of changes are informational, as opposed to >> presentational. The four possible values are defined as: >> - text: Notify if there was a change in the text of any of the accessible >> objects making up the live region. >> - additions: Notify if any accessible objects were added to the live region. >> - removals: Notify if any accessible objects were removed from the live >> region. >> - all: Equivalent to the combination of the above three values. >> >> Name: container-atomic >> Values: true, false >> Default: false >> Reference: >> https://developer.mozilla.org/en-US/docs/AJAX/WAI_ARIA_Live_Regions_API_Support >> Comments: This object is a descendant in the accessibility tree of an object >> which has the atomic object attribute. If true, the IA2_RELATION_MEMBER_OF >> relation will point to the root of the atomic region. >> >> Name: container-busy >> Values: true, false >> Default: false >> Reference: >> https://developer.mozilla.org/en-US/docs/AJAX/WAI_ARIA_Live_Regions_API_Support >> Comments: The current changes in the live region are not yet complete. A >> state change event will be fired on the root object of the live region once >> it no longer has state for STATE_SYSTEM_BUSY. The entire atomic region >> should be presented once when it is finally no longer busy. >> >> Name: container-live >> Values: off, polite, assertive >> Default: off >> Reference: >> https://developer.mozilla.org/en-US/docs/AJAX/WAI_ARIA_Live_Regions_API_Support >> Comments: This object is a descendant in the accessibility tree of an object >> which has the live object attribute. The value of this attribute will match >> that of the root of the current live region. >> >> Name: container-relevant >> Values: all, or a space delimited list of one or more of these values: >> additions, removals, text >> Default: additions text >> Reference: >> https://developer.mozilla.org/en-US/docs/AJAX/WAI_ARIA_Live_Regions_API_Support >> Comments: This object is a descendant in the accessibility tree of an object >> which has the relevant object attribute. The value of this attribute will >> match that of the root of the current live region. >> >> Name: event-from-input >> Values: true, false >> Default: >> Reference: >> https://developer.mozilla.org/en-US/docs/AJAX/WAI_ARIA_Live_Regions_API_Support >> Comments: True if the root cause of this event was explicit user input (as >> opposed to a programmatic change). >> >> In a new section labeled Value Attributes >> >> Name: valuetext >> Values: <string> >> Default: >> Reference: >> Comments: A text equivalent to the current value, such as "High" in a >> slider. >> >> I'll also add a link to the Gecko spec for an example of object attributes >> which has been specified for a HTML specific environment. >> >> -- >> Pete Brunet >> >> a11ysoft - Accessibility Architecture and Development >> (512) 467-4706 (work), (512) 689-4155 (cell) >> Skype: pete.brunet >> IM: ptbrunet (AOL, Google), ptbru...@live.com (MSN) >> http://www.a11ysoft.com/about/ >> Ionosphere: WS4G >> >> _______________________________________________ >> Accessibility-ia2 mailing list >> Accessibility-ia2@lists.linuxfoundation.org >> https://lists.linuxfoundation.org/mailman/listinfo/accessibility-ia2 >> -- *Pete Brunet* a11ysoft - Accessibility Architecture and Development (512) 467-4706 (work), (512) 689-4155 (cell) Skype: pete.brunet IM: ptbrunet (AOL, Google), ptbru...@live.com (MSN) http://www.a11ysoft.com/about/ Ionosphere: WS4G
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