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Fix scroller getting dragged incorrectly in RTL (fixes #5496)

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This commit is contained in:
arkon 2021-08-06 14:50:44 -04:00
parent 8362bf0886
commit 7c72d6cb7c
1 changed files with 50 additions and 2 deletions
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52
app/src/main/java/eu/kanade/tachiyomi/widget/MaterialFastScroll.kt
View File

@ -1,11 +1,14 @@
package eu.kanade.tachiyomi.widget
import android.annotation.SuppressLint
import android.content.Context
import android.util.AttributeSet
import android.view.MotionEvent
import androidx.core.view.ViewCompat
import eu.davidea.fastscroller.FastScroller
import eu.kanade.tachiyomi.R
import eu.kanade.tachiyomi.util.system.dpToPxEnd
import eu.kanade.tachiyomi.util.system.isLTR
class MaterialFastScroll @JvmOverloads constructor(context: Context, attrs: AttributeSet? = null) :
FastScroller(context, attrs) {
@ -14,14 +17,59 @@ class MaterialFastScroll @JvmOverloads constructor(context: Context, attrs: Attr
setViewsToUse(
R.layout.material_fastscroll,
R.id.fast_scroller_bubble,
R.id.fast_scroller_handle
R.id.fast_scroller_handle,
)
autoHideEnabled = true
ignoreTouchesOutsideHandle = true
}
// Overridden to handle RTL
@SuppressLint("ClickableViewAccessibility")
override fun onTouchEvent(event: MotionEvent): Boolean {
if (isHidden) return false
if (recyclerView.computeVerticalScrollRange() <= recyclerView.computeVerticalScrollExtent()) {
return super.onTouchEvent(event)
}
when (event.action) {
MotionEvent.ACTION_DOWN -> {
// start: handle RTL differently
if (
if (context.resources.isLTR) {
event.x < handle.x - ViewCompat.getPaddingStart(handle)
} else {
event.x > handle.width + ViewCompat.getPaddingStart(handle)
}
) return false
// end
if (ignoreTouchesOutsideHandle &&
(event.y < handle.y || event.y > handle.y + handle.height)
) {
return false
}
handle.isSelected = true
notifyScrollStateChange(true)
showBubble()
showScrollbar()
val y = event.y
setBubbleAndHandlePosition(y)
setRecyclerViewPosition(y)
return true
}
MotionEvent.ACTION_MOVE -> {
val y = event.y
setBubbleAndHandlePosition(y)
setRecyclerViewPosition(y)
return true
}
MotionEvent.ACTION_UP, MotionEvent.ACTION_CANCEL -> {
handle.isSelected = false
notifyScrollStateChange(false)
hideBubble()
if (autoHideEnabled) hideScrollbar()
return true
}
}
return super.onTouchEvent(event)
}