69 lines
1.7 KiB
Kotlin
69 lines
1.7 KiB
Kotlin
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package jp.juggler.subwaytooter.view
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import android.text.Spannable
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import android.text.method.LinkMovementMethod
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import android.text.method.Touch
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import android.text.style.ClickableSpan
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import android.view.MotionEvent
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import android.widget.TextView
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class MyLinkMovementMethod : LinkMovementMethod() {
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companion object {
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private lateinit var instanceX : MyLinkMovementMethod
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val instance : MyLinkMovementMethod
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get() {
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if(! ::instanceX.isInitialized) instanceX = MyLinkMovementMethod()
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return instanceX
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}
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}
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override fun onTouchEvent(widget : TextView, buffer : Spannable, event : MotionEvent) : Boolean {
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val action = event.action
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if(action != MotionEvent.ACTION_UP && action != MotionEvent.ACTION_DOWN) {
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return Touch.onTouchEvent(widget, buffer, event)
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}
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var x = event.x.toInt()
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var y = event.y.toInt()
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x -= widget.totalPaddingLeft
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y -= widget.totalPaddingTop
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x += widget.scrollX
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y += widget.scrollY
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val layout = widget.layout
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val line = layout.getLineForVertical(y)
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if(0 <= line && line < layout.lineCount) {
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val line_left = layout.getLineLeft(line)
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val line_right = layout.getLineRight(line)
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if(line_left <= x && x <= line_right) {
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val offset = layout.getOffsetForHorizontal(line, x.toFloat())
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val link = buffer.getSpans(offset, offset, ClickableSpan::class.java)
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if(link != null && link.isNotEmpty()) {
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if(action == MotionEvent.ACTION_UP) {
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link[0].onClick(widget)
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}
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if(widget is MyTextView) {
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widget.linkHit = true
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}
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return true
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}
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}
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}
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Touch.onTouchEvent(widget, buffer, event)
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return false
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}
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}
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