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Add a tap listener to the view #214

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Add a tap listener to the view #214

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9 changes: 9 additions & 0 deletions pdfViewer/src/main/java/com/rajat/pdfviewer/PdfRendererView.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -77,6 +77,7 @@ class PdfRendererView @JvmOverloads constructor(

var zoomListener: ZoomListener? = null
var statusListener: StatusCallBack? = null
var tapListener: TapListener? = null

//region Public APIs
fun isZoomedIn(): Boolean = this::recyclerView.isInitialized && recyclerView.isZoomedIn()
Expand Down Expand Up @@ -262,6 +263,10 @@ class PdfRendererView @JvmOverloads constructor(
zoomListener?.onZoomChanged(isZoomedIn, scale)
}

recyclerView.setOnTapListener {
tapListener?.onTap()
}

recyclerView.post {
postInitializationAction?.invoke()
statusListener?.onPdfRenderSuccess()
Expand Down Expand Up @@ -489,4 +494,8 @@ class PdfRendererView @JvmOverloads constructor(
interface ZoomListener {
fun onZoomChanged(isZoomedIn: Boolean, scale: Float)
}

fun interface TapListener {
fun onTap()
}
}
9 changes: 9 additions & 0 deletions pdfViewer/src/main/java/com/rajat/pdfviewer/PinchZoomRecyclerView.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -38,6 +38,7 @@ class PinchZoomRecyclerView @JvmOverloads constructor(
private var posY = 0f

private var zoomChangeListener: ((Boolean, Float) -> Unit)? = null
private var tapListener: PdfRendererView.TapListener? = null

private var anchorScale = 1f
private var anchorFocusY = 0f
Expand All @@ -61,6 +62,10 @@ class PinchZoomRecyclerView @JvmOverloads constructor(
zoomChangeListener = listener
}

fun setOnTapListener(listener: PdfRendererView.TapListener) {
tapListener = listener
}

/**
* Handles touch interactions — zoom, pan, and scroll.
*/
Expand Down Expand Up @@ -291,6 +296,10 @@ class PinchZoomRecyclerView @JvmOverloads constructor(
* GestureListener handles double-tap zoom.
*/
private inner class GestureListener : GestureDetector.SimpleOnGestureListener() {
override fun onSingleTapUp(e: MotionEvent): Boolean {
tapListener?.onTap()
return true
}
override fun onDoubleTap(e: MotionEvent): Boolean {
if (!isZoomEnabled) return false

Expand Down
3 changes: 3 additions & 0 deletions pdfViewer/src/main/java/com/rajat/pdfviewer/compose/PdfRendererCompose.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,7 @@ fun PdfRendererViewCompose(
statusCallBack: PdfRendererView.StatusCallBack? = null,
zoomListener: PdfRendererView.ZoomListener? = null,
onReady: ((PdfRendererView) -> Unit)? = null,
tapListener: PdfRendererView.TapListener? = null
) {
val context = LocalContext.current
val pdfViewRef = remember { mutableStateOf<PdfRendererView?>(null) }
Expand Down Expand Up @@ -83,12 +84,14 @@ fun PdfRendererViewCompose(
PdfRendererView(ctx).also { view ->
view.statusListener = combinedCallback
view.zoomListener = zoomListener
view.tapListener = tapListener
pdfViewRef.value = view
}
},
update = { view ->
view.statusListener = combinedCallback
view.zoomListener = zoomListener
view.tapListener = tapListener

if (!hasInit) {
when {
Expand Down