Windows touch screen play button bug

[GJ]

The play buttons do not work properly with a Windows touch screen.

To reproduce:
1. Use any version of Mixxx on Windows 8.1
2. Load both decks
3. Touch Play Button on right deck. Playback begins immediately but ceases when the finger is lifted.

The only skin that seems to work somewhat correctly is Latenight, but *only on the left deck*. The right deck still has the bug. So that's a start, haha.

This is true in Mixxx 2.0 x86 as well as the 2.1 x64 build and across all skins.

Reported here: http://www.mixxx.org/forums/viewtopic.php?f=3&t=8777&p=31807#p31807

Confirmed on:
PC1: Windows 8.1 Pro x86; Mixxx 2.0; Deere, FlatNight, LateNight, Shade
PC2: Windows 8.1 Home x64; Mixxx 2.0 & 2.1; Deere, FlatNight, LateNight, Shade

[Be (be.ing)]

Is this bug specific to Windows? Can anyone with a touch screen and another OS test?

[Daniel Schürmann (daschuer)]

It works like a charm on Linux using the Cinnamon desktop.

Please note that Mixxx also has the

[Controls], touch_shift

that can be bound to a keyboard key, a controller button or a GUI element to turn every touch into a right click.

The long-press = right click setting is somehow a miss-configuration when using Mixxx.

[Daniel Schürmann (daschuer)]

I can confirm the issue with Win10 64 bit.
Mix is unusable via touch

[Daniel Schürmann (daschuer)]

Not working short Press and release action:

Debug [Main]: WPushButton(0x161e08683a0) "45:632" WWidget::event QTouchEvent(TouchBegin states: QFlags(0x1|0x10) , 1 points: (TouchPoint(0 QRectF(10.5,12 1x2) pressed ) ) )
Debug [Main]: WPushButton(0x161e08683a0) "45:632" WPushButton::mousePressEvent QMouseEvent(MouseButtonPress, LeftButton)
Debug [Main]: WPushButton(0x161e08683a0) "45:636" WWidget::event QTouchEvent(TouchEnd states: QFlags(0x8|0x10) , 1 points: (TouchPoint(0 QRectF(11,13 0x0) released ) ) )
Debug [Main]: WPushButton(0x161e08683a0) "45:636" WPushButton::mouseReleaseEvent QMouseEvent(MouseButtonRelease, LeftButton)
Debug [Main]: WPushButton(0x161e08683a0) "45:638" WPushButton::mousePressEvent QMouseEvent(MouseButtonPress, LeftButton)
Debug [Main]: WPushButton(0x161e08683a0) "45:651" WPushButton::mouseReleaseEvent QMouseEvent(MouseButtonRelease, LeftButton)
Debug [Main]: WPushButton(0x161e08683a0) "50:592" WPushButton::focusOutEvent QFocusEvent(FocusOut, 3)
Debug [Main]: WPushButton(0x161e08683a0) "02:680" WPushButton::focusOutEvent QFocusEvent(FocusOut, 3)
Debug [Main]: WPushButton(0x161e08683a0) "31:121" WPushButton::focusOutEvent QFocusEvent(FocusOut, 0)
Debug [Main]: WPushButton(0x161e37fe8b0) "31:121" WPushButton::mousePressEvent QMouseEvent(MouseButtonPress, LeftButton)

Working long Press and release action:

Debug [Main]: WPushButton(0x161e08683a0) "55:040" WWidget::event QTouchEvent(TouchBegin states: QFlags(0x1|0x10) , 1 points: (TouchPoint(0 QRectF(14,15 2x2) pressed ) ) )
Debug [Main]: WPushButton(0x161e08683a0) "55:040" WPushButton::mousePressEvent QMouseEvent(MouseButtonPress, LeftButton)
Debug [Main]: WPushButton(0x161e08683a0) "55:044" WWidget::event QTouchEvent(TouchUpdate states: QFlags(0x2|0x10) , 1 points: (TouchPoint(0 QRectF(14,15 2x2) moved ) ) )
Debug [Main]: WPushButton(0x161e08683a0) "55:046" WWidget::event QTouchEvent(TouchUpdate states: QFlags(0x2|0x10) , 1 points: (TouchPoint(0 QRectF(14,15 2x2) moved ) ) )
Debug [Main]: WPushButton(0x161e08683a0) "55:053" WWidget::event QTouchEvent(TouchUpdate states: QFlags(0x2|0x10) , 1 points: (TouchPoint(0 QRectF(14,15 2x2) moved ) ) )
Debug [Main]: WPushButton(0x161e08683a0) "55:060" WWidget::event QTouchEvent(TouchUpdate states: QFlags(0x2|0x10) , 1 points: (TouchPoint(0 QRectF(14,15 2x2) moved ) ) )
Debug [Main]: WPushButton(0x161e08683a0) "55:068" WWidget::event QTouchEvent(TouchUpdate states: QFlags(0x2|0x10) , 1 points: (TouchPoint(0 QRectF(14,15 2x2) moved ) ) )
Debug [Main]: WPushButton(0x161e08683a0) "55:074" WWidget::event QTouchEvent(TouchUpdate states: QFlags(0x2|0x10) , 1 points: (TouchPoint(0 QRectF(14,15 2x2) moved ) ) )
Debug [Main]: WPushButton(0x161e08683a0) "55:081" WWidget::event QTouchEvent(TouchUpdate states: QFlags(0x2|0x10) , 1 points: (TouchPoint(0 QRectF(14,15 2x2) moved ) ) )
Debug [Main]: WPushButton(0x161e08683a0) "55:090" WWidget::event QTouchEvent(TouchUpdate states: QFlags(0x2|0x10) , 1 points: (TouchPoint(0 QRectF(14,15 2x2) moved ) ) )
Debug [Main]: WPushButton(0x161e08683a0) "55:095" WWidget::event QTouchEvent(TouchUpdate states: QFlags(0x2|0x10) , 1 po...

[Daniel Schürmann (daschuer)]

It looks like someone in the back does not undertsand that we are able to hadle touches.
It generates the same fake mous events we create. So the button effectively receives two cicks.
play + pause.

[Daniel Schürmann (daschuer)]

Fixed in https://github.com/mixxxdj/mixxx/commit/c394fae330c4c7abb1ba796316a2baf2b32b6473

[Swiftb0y (swiftb0y)]

Mixxx now uses GitHub for bug tracking. This bug has been migrated to:
https://github.com/mixxxdj/mixxx/issues/8797