fix: change the content click to be hit-rect based to determine child object intersection for views with multiple content objects

app/src/main/java/org/thoughtcrime/securesms/conversation/v2/AlbumThumbnailView.kt

@@ -2,11 +2,12 @@ package org.thoughtcrime.securesms.conversation.v2
 
 import android.content.Context
 import android.graphics.Canvas
+import android.graphics.Rect
 import android.util.AttributeSet
 import android.view.LayoutInflater
-import android.view.View
 import android.view.ViewGroup
 import android.widget.FrameLayout
+import androidx.core.view.children
 import androidx.core.view.isVisible
 import kotlinx.android.synthetic.main.album_thumbnail_view.view.*
 import network.loki.messenger.R
@@ -15,24 +16,33 @@ import org.thoughtcrime.securesms.conversation.v2.utilities.KThumbnailView
 import org.thoughtcrime.securesms.database.model.MmsMessageRecord
 import org.thoughtcrime.securesms.mms.GlideRequests
 import org.thoughtcrime.securesms.mms.Slide
-import org.thoughtcrime.securesms.mms.SlideClickListener
-import org.thoughtcrime.securesms.mms.SlidesClickedListener
 
-class AlbumThumbnailView: FrameLayout, SlideClickListener, SlidesClickedListener, View.OnClickListener {
+class AlbumThumbnailView : FrameLayout {
 
     // region Lifecycle
-    constructor(context: Context) : super(context) { initialize() }
-    constructor(context: Context, attrs: AttributeSet) : super(context, attrs) { initialize() }
-    constructor(context: Context, attrs: AttributeSet, defStyleAttr: Int) : super(context, attrs, defStyleAttr) { initialize() }
+    constructor(context: Context) : super(context) {
+        initialize()
+    }
+
+    constructor(context: Context, attrs: AttributeSet) : super(context, attrs) {
+        initialize()
+    }
+
+    constructor(context: Context, attrs: AttributeSet, defStyleAttr: Int) : super(context, attrs, defStyleAttr) {
+        initialize()
+    }
 
-    private var slideClickListener: ((Slide) -> Unit)? = null
-    private var downloadClickListener: ((Slide) -> Unit)? = null
-    private var readMoreListener: (() -> Unit)? = null
     private val cornerMask by lazy { CornerMask(this) }
+    private var slides: List<Slide> = listOf()
+
+    sealed class Hit {
+        object ReadMoreHit : Hit()
+        data class SlideHit(val slide: Slide) : Hit()
+        data class DownloadHit(val slide: Slide) : Hit()
+    }
 
     private fun initialize() {
         LayoutInflater.from(context).inflate(R.layout.album_thumbnail_view, this)
-        albumCellBodyTextReadMore.setOnClickListener(this)
     }
 
     override fun dispatchDraw(canvas: Canvas?) {
@@ -44,36 +54,31 @@ class AlbumThumbnailView: FrameLayout, SlideClickListener, SlidesClickedListener
 
     // region Interaction
 
-    override fun onClick(v: View?) {
-        // clicked the view or one of its children
-        if (v === albumCellBodyTextReadMore) {
-            readMoreListener?.invoke()
+    fun calculateHitObject(hitRect: Rect): Hit? {
+        // Z-check in specific order
+        val testRect = Rect()
+        // test "Read More"
+        albumCellBodyTextReadMore.getHitRect(testRect)
+        if (Rect.intersects(hitRect, testRect)) {
+            return Hit.ReadMoreHit
+        }
+        // test each album child
+        albumCellContainer.findViewById<ViewGroup>(R.id.album_thumbnail_root)?.children?.forEachIndexed { index, child ->
+            child.getHitRect(testRect)
+            if (Rect.intersects(hitRect, testRect)) {
+                // hit intersects with this particular child
+                slides.getOrNull(index)?.let { slide ->
+                    return Hit.SlideHit(slide)
                 }
             }
-
-    override fun onClick(v: View?, slide: Slide?) {
-        // slide thumbnail clicked
-        if (slide==null) return
-        slideClickListener?.invoke(slide)
-    }
-
-    override fun onClick(v: View?, slides: MutableList<Slide>?) {
-        // slide download clicked
-        if (slides.isNullOrEmpty()) return
-        slides.firstOrNull().let { slide ->
-            if (slide == null) return@let
-            downloadClickListener?.invoke(slide)
         }
+        return null
     }
 
     fun bind(glideRequests: GlideRequests, message: MmsMessageRecord,
-             clickListener: (Slide)->Unit, downloadClickListener: (Slide)->Unit, readMoreListener: ()->Unit,
              isStart: Boolean, isEnd: Boolean) {
-        this.slideClickListener = clickListener
-        this.downloadClickListener = downloadClickListener
-        this.readMoreListener = readMoreListener
         // TODO: optimize for same size
-        val slides = message.slideDeck.thumbnailSlides
+        slides = message.slideDeck.thumbnailSlides
         if (slides.isEmpty()) {
             // this should never be encountered because it's checked by parent
             return
@@ -84,16 +89,15 @@ class AlbumThumbnailView: FrameLayout, SlideClickListener, SlidesClickedListener
         // iterate
         slides.take(5).forEachIndexed { position, slide ->
             val thumbnailView = getThumbnailView(position)
-            thumbnailView.thumbnailClickListener = this
             thumbnailView.setImageResource(glideRequests, slide, showControls = false, isPreview = false)
-            thumbnailView.setDownloadClickListener(this)
         }
         albumCellBodyParent.isVisible = message.body.isNotEmpty()
         albumCellBodyText.text = message.body
         post {
             // post to await layout of text
             albumCellBodyText.layout?.let { layout ->
-                val maxEllipsis = (0 until layout.lineCount).maxByOrNull { lineNum -> layout.getEllipsisCount(lineNum) } ?: 0
+                val maxEllipsis = (0 until layout.lineCount).maxByOrNull { lineNum -> layout.getEllipsisCount(lineNum) }
+                        ?: 0
                 // show read more text if at least one line is ellipsized
                 albumCellBodyTextReadMore.isVisible = maxEllipsis > 0
             }

app/src/main/java/org/thoughtcrime/securesms/conversation/v2/ConversationActivityV2.kt

@@ -76,8 +76,8 @@ class ConversationActivityV2 : PassphraseRequiredActionBarActivity(), InputBarDe
         val adapter = ConversationAdapter(
             this,
             cursor,
-            onItemPress = { message, position, view ->
-                handlePress(message, position, view)
+            onItemPress = { message, position, view, rect ->
+                handlePress(message, position, view, rect)
             },
             onItemSwipeToReply = { message, position ->
                 handleSwipeToReply(message, position)
@@ -452,7 +452,7 @@ class ConversationActivityV2 : PassphraseRequiredActionBarActivity(), InputBarDe
     }
 
     // `position` is the adapter position; not the visual position
-    private fun handlePress(message: MessageRecord, position: Int, view: VisibleMessageView) {
+    private fun handlePress(message: MessageRecord, position: Int, view: VisibleMessageView, hitRect: Rect) {
         val actionMode = this.actionMode
         if (actionMode != null) {
             adapter.toggleSelection(message, position)
@@ -467,7 +467,7 @@ class ConversationActivityV2 : PassphraseRequiredActionBarActivity(), InputBarDe
             // We have to use onContentClick (rather than a click listener directly on
             // the view) so as to not interfere with all the other gestures. Do not add
             // onClickListeners directly to message content views.
-            view.onContentClick()
+            view.onContentClick(hitRect)
         }
     }
 

app/src/main/java/org/thoughtcrime/securesms/conversation/v2/ConversationAdapter.kt

@@ -2,6 +2,7 @@ package org.thoughtcrime.securesms.conversation.v2
 
 import android.content.Context
 import android.database.Cursor
+import android.graphics.Rect
 import android.view.ViewGroup
 import androidx.core.view.isVisible
 import androidx.recyclerview.widget.RecyclerView.ViewHolder
@@ -13,7 +14,7 @@ import org.thoughtcrime.securesms.database.DatabaseFactory
 import org.thoughtcrime.securesms.database.model.MessageRecord
 import org.thoughtcrime.securesms.mms.GlideRequests
 
-class ConversationAdapter(context: Context, cursor: Cursor, private val onItemPress: (MessageRecord, Int, VisibleMessageView) -> Unit,
+class ConversationAdapter(context: Context, cursor: Cursor, private val onItemPress: (MessageRecord, Int, VisibleMessageView, Rect) -> Unit,
     private val onItemSwipeToReply: (MessageRecord, Int) -> Unit, private val onItemLongPress: (MessageRecord, Int) -> Unit,
     private val glide: GlideRequests)
     : CursorRecyclerViewAdapter<ViewHolder>(context, cursor) {
@@ -68,7 +69,7 @@ class ConversationAdapter(context: Context, cursor: Cursor, private val onItemPr
                 view.messageTimestampTextView.isVisible = isSelected
                 val position = viewHolder.adapterPosition
                 view.bind(message, getMessageBefore(position, cursor), getMessageAfter(position, cursor), glide)
-                view.onPress = { onItemPress(message, viewHolder.adapterPosition, view) }
+                view.onPress = { x, y -> onItemPress(message, viewHolder.adapterPosition, view, Rect(x,y,x,y)) }
                 view.onSwipeToReply = { onItemSwipeToReply(message, viewHolder.adapterPosition) }
                 view.onLongPress = { onItemLongPress(message, viewHolder.adapterPosition) }
             }

app/src/main/java/org/thoughtcrime/securesms/conversation/v2/messages/VisibleMessageContentView.kt

@@ -1,6 +1,7 @@
 package org.thoughtcrime.securesms.conversation.v2.messages
 
 import android.content.Context
+import android.graphics.Rect
 import android.graphics.drawable.Drawable
 import android.text.util.Linkify
 import android.util.AttributeSet
@@ -30,7 +31,7 @@ import org.thoughtcrime.securesms.mms.GlideRequests
 import kotlin.math.roundToInt
 
 class VisibleMessageContentView : LinearLayout {
-    var onContentClick: (() -> Unit)? = null
+    var onContentClick: ((Rect) -> Unit)? = null
 
     // region Lifecycle
     constructor(context: Context) : super(context) { initialize() }
@@ -93,18 +94,18 @@ class VisibleMessageContentView : LinearLayout {
                     glideRequests = glide,
                     message = message,
                     isStart = isStartOfMessageCluster,
-                    isEnd = isEndOfMessageCluster,
-                    clickListener = { slide ->
-                        Log.d("Loki-UI","clicked to display the slide $slide")
-                    },
-                    downloadClickListener = { slide ->
-                        // trigger download of content?
-                        Log.d("Loki-UI","clicked to download the slide $slide")
-                    },
-                    readMoreListener = {
-                        Log.d("Loki-UI", "clicked to read more the message $message")
-                    }
+                    isEnd = isEndOfMessageCluster
             )
+            onContentClick = {
+                when (val hitObject = albumThumbnailView.calculateHitObject(it)) {
+                    is AlbumThumbnailView.Hit.SlideHit -> Log.d("Loki-UI", "clicked display slide ${hitObject.slide}")// open the slide preview
+                    is AlbumThumbnailView.Hit.DownloadHit -> Log.d("Loki-UI", "clicked display download")
+                    AlbumThumbnailView.Hit.ReadMoreHit -> Log.d("Loki-UI", "clicked the read more display")
+                    else -> {
+                        Log.d("Loki-UI", "DIDN'T click anything important")
+                    }
+                }
+            }
         } else if (message.isOpenGroupInvitation) {
             val openGroupInvitationView = OpenGroupInvitationView(context)
             openGroupInvitationView.bind(message, VisibleMessageContentView.getTextColor(context, message))

app/src/main/java/org/thoughtcrime/securesms/conversation/v2/messages/VisibleMessageView.kt

@@ -50,7 +50,7 @@ class VisibleMessageView : LinearLayout {
     private var onDownTimestamp = 0L
     var snIsSelected = false
         set(value) { field = value; handleIsSelectedChanged()}
-    var onPress: (() -> Unit)? = null
+    var onPress: ((x: Int, y: Int) -> Unit)? = null
     var onSwipeToReply: (() -> Unit)? = null
     var onLongPress: (() -> Unit)? = null
 
@@ -272,7 +272,7 @@ class VisibleMessageView : LinearLayout {
             onSwipeToReply?.invoke()
         } else if ((Date().time - onDownTimestamp) < VisibleMessageView.longPressDurationThreshold) {
             longPressCallback?.let { gestureHandler.removeCallbacks(it) }
-            onPress?.invoke()
+            onPress?.invoke(event.x.toInt(), event.y.toInt())
         }
         resetPosition()
     }
@@ -297,8 +297,8 @@ class VisibleMessageView : LinearLayout {
         onLongPress?.invoke()
     }
 
-    fun onContentClick() {
-        messageContentView.onContentClick?.invoke()
+    fun onContentClick(hitRect: Rect) {
+        messageContentView.onContentClick?.invoke(hitRect)
     }
     // endregion
 }

app/src/main/java/org/thoughtcrime/securesms/conversation/v2/utilities/KThumbnailView.kt

@@ -27,7 +27,7 @@ import org.thoughtcrime.securesms.components.TransferControlView
 import org.thoughtcrime.securesms.mms.*
 import org.thoughtcrime.securesms.mms.DecryptableStreamUriLoader.DecryptableUri
 
-open class KThumbnailView: FrameLayout, View.OnClickListener {
+open class KThumbnailView: FrameLayout {
 
     companion object {
         private const val WIDTH = 0
@@ -66,7 +66,6 @@ open class KThumbnailView: FrameLayout, View.OnClickListener {
 
             typedArray.recycle()
         }
-        setOnClickListener(this)
     }
 
     override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {
@@ -89,13 +88,6 @@ open class KThumbnailView: FrameLayout, View.OnClickListener {
     // endregion
 
     // region Interaction
-
-    override fun onClick(v: View?) {
-        if (v === this) {
-            thumbnailClickListener?.onClick(v, slide)
-        }
-    }
-
     fun setImageResource(glide: GlideRequests, slide: Slide, showControls: Boolean, isPreview: Boolean): ListenableFuture<Boolean> {
         return setImageResource(glide, slide, showControls, isPreview, 0, 0)
     }