Updating the Slider Widget to allow up and down arrow keys to navigate out of the slider when in directional NavigationMode. #103149
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Do you have a repro to demonstrate the problem? |
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cc @clocksmith |
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@chunhtai this happens when a directional interface is created (like with a TV remote), and if up and down are mapped as well as left and right, then the slider "traps" the focus, since you move onto the slider and then can't move off at all (it just adjusts the slider no matter which direction you try to go). This PR will change it so that left and right still adjust the slider, but up and down can navigate you off of it. I've asked the material designers about this, but they don't appear to have any specs yet for key bindings. |
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I've CC'd you both on the internal Google bug in our app if that helps. There is a link to a video in there. |
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I am just throwing ideas. can the slider bubble up the intent if the slider reach the max/min value when arrow up and down? |
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It could, but then it would be impossible to adjust the slider to any value other than max/min (and leave it set there and move on to something else). |
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I did a few test on different platforms. on Android, it looks like the up and down can escape the slider while left right change the value. On the mac chrome, surprisingly, the up down arrows also change the value, and you can't escape the focus. I am using this example https://www.w3schools.com/howto/howto_js_rangeslider.asp |
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This is because Android has directional navigation built in and the web doesn't. Perhaps this change should be sensitive to |
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Right, the chrome browser is being primarily navigated via tab and shift-tab, not directional navigation. The TV interface in a browser is exactly what we are building here, so kIsWeb would not help us. One alternative that would work for us would be to check for NavigationMode.directional in the MediaQuery, which was my first attempt at this. |
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We may need to be careful about mobile web user if we check kIsWeb though. I think we can make it platform dependent. For example, Android/iOS can up down navigate, while macOS/Windlows/Linux can't. Although we may not be able fix case where people want this behavior on desktop (for example steam app), but I think we can figure that out if that becomes a problem? |
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I like the idea of predicating it on the |
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OK, so, back to predicating this change NavigationMode.directional then? |
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I went ahead and reverted the change to my original NavigationMode-based implementation since that seems to be where this discussion is leaning now. |
egramond
changed the title
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This can be a static const since it is const anyway?
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It may be cleaner to use a local variable instead of a local function to get the shortcuts.
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In this case, It may be more beneficial to use switch case so the lint would warn when if we add a new navigation mode in the future
…e out of the Slider when using the directional NavigationMode.
… navigate out of the slider when in directional NavigationMode. (flutter/flutter#103149)
… navigate out of the slider when in directional NavigationMode. (flutter/flutter#103149)
… navigate out of the slider when in directional NavigationMode. (flutter/flutter#103149)
… navigate out of the slider when in directional NavigationMode. (flutter/flutter#103149)
… navigate out of the slider when in directional NavigationMode. (flutter/flutter#103149)
… navigate out of the slider when in directional NavigationMode. (flutter/flutter#103149)
… navigate out of the slider when in directional NavigationMode. (flutter/flutter#103149)
… navigate out of the slider when in directional NavigationMode. (flutter/flutter#103149)
… navigate out of the slider when in directional NavigationMode. (flutter/flutter#103149)
… navigate out of the slider when in directional NavigationMode. (flutter/flutter#103149)
… navigate out of the slider when in directional NavigationMode. (flutter/flutter#103149)
… navigate out of the slider when in directional NavigationMode. (flutter/flutter#103149)
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… navigate out of the slider when in directional NavigationMode. (flutter/flutter#103149)
… navigate out of the slider when in directional NavigationMode. (flutter/flutter#103149)
… navigate out of the slider when in directional NavigationMode. (flutter/flutter#103149)
… navigate out of the slider when in directional NavigationMode. (flutter/flutter#103149)
4 participants
Updating Slider Widget to allow up and down arrow keys to navigate out of the slider.
This prevents users using directional navigation from becoming stuck on the slider once they navigate to it.