*>Frederik.gladhorn |
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| = Introduction =
| | Moved to https://hig.kde.org/accessibility/index.html |
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| == Fonts and Colors ==
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| There are some general points that I'll rehash without thinking about it too
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| much, these should be known:
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| - The usual HIG apply: make sure that the application is keyboard accessible
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| (try seeing if the tab key gets you through all widgets in a sensible order)
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| is quite important.
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| (Using a mouse is more troublesome when you can't see where you're pointing
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| than moving a focus for example, different kinds of motorical issues etc...)
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| - Check for color scheme compliance and font settings taking effect.
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| == Screen Reader ==
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| More advanced would be the usage of assistive technology. I think we need to
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| learn from people with actual need of these technologies in order to get a
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| good grasp of the issues. I can try to write down some issues I know about.
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| 1 Get Orca to work in general - just grab the gnome-orca package that should
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| be in pretty much any distro and try it with some gtk app. Test that it reacts
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| to focus changes. | |
| 2 Make sure it's using dbus. That means having libatspi 2.0 (package name may
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| vary, see also the settings here:
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| http://labs.qt.nokia.com/2011/08/23/accessibility-on-linux/)
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| 3 Have Qt 4.8 and the qt-at-spi bridge.
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| 4 export QT_ACCESSIBILITY=1 (this is needed for Qt 4, fixed in Qt 5)
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| 5 Run the KDE/Qt application you want to test with the Qt version for which
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| you have the bridge installed. (This works even with Qt built separately in
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| the home directory and the bridge installed there.)
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| Once you have an application running with the screen reader:
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| Make sure Orca says something intelligible for all elements. When it reads a
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| gui element it should say the label and type, eg: "File, Menu" or "OK,
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| Button".
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| When you have a button that does not have a label, maybe because it shows a
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| picture only, that's something to fix. Try navigating the more troublesome
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| elements - comboboxes and lists and such. Trees need a bit of love in the
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| bridge still.
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| Apart from the bridge probably still lacking features and having a few bugs, I
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| think now it's mostly time to fix up the small missing bits.
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| Fixing stuff: the good news is that it's really easy usually, no heavy C++
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| skills required.
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| There are two important properties that every QWidget has: AccessibleName and
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| AccessibleDescription.
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| The name is a short label, for example the label on a button. It should always
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| be short. The description on the other hand is the more verbose "this button
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| does foo and then bar".
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| Fire up Qt designer if the app uses .ui files, you'll find the properties and
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| can type the name/description right in.
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| If the widget is managed in code, just find the right place and set them:
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| button->setAccessibleName(i18n("Open"));
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| button->setAccessibleDescription(i18n("Opens a file dialog to select a new
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| foo"));
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| Sometimes you also want to override the label for a different reason. One of my
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| test apps was the calculator example from Qt. It has a memory recall button
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| labelled "MR". Orca will insist on this being the "Mister" button, unless told
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| otherwise. Of course I couldn't fix that one since it made me smile every
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| single time ;)
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| I bet there's more, but this is a beginning. In the end it would be great to
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| build up a bit of a community that starts using these applications on a
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| regular basis.
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| Should we gather these and extend them on some wiki? I'd love to have some
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| accessibility testing going on some time in the future.
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