From d85fe7a128be6f31c8cae06738c7b8684ee39f4d Mon Sep 17 00:00:00 2001
From: LooKeR <mohit2002ss@gmail.com>
Date: Fri, 29 Oct 2021 15:01:12 +0530
Subject: [PATCH] Fix: Links in Description not clickable (Closes #91)

---
 .../looker/droidify/screen/ProductAdapter.kt  |  5 +-
 .../widget/ClickableMovementMethod.kt         | 67 +++++++++++++++++++
 2 files changed, 71 insertions(+), 1 deletion(-)
 create mode 100644 src/main/kotlin/com/looker/droidify/widget/ClickableMovementMethod.kt

diff --git a/src/main/kotlin/com/looker/droidify/screen/ProductAdapter.kt b/src/main/kotlin/com/looker/droidify/screen/ProductAdapter.kt
index cfd063f6..29705de6 100644
--- a/src/main/kotlin/com/looker/droidify/screen/ProductAdapter.kt
+++ b/src/main/kotlin/com/looker/droidify/screen/ProductAdapter.kt
@@ -22,6 +22,7 @@ import android.view.Gravity
 import android.view.MotionEvent
 import android.view.View
 import android.view.ViewGroup
+import android.widget.TextView
 import androidx.appcompat.content.res.AppCompatResources
 import androidx.appcompat.widget.LinearLayoutCompat
 import androidx.core.content.res.ResourcesCompat
@@ -52,6 +53,7 @@ import com.looker.droidify.utility.Utils
 import com.looker.droidify.utility.extension.android.*
 import com.looker.droidify.utility.extension.resources.*
 import com.looker.droidify.utility.extension.text.*
+import com.looker.droidify.widget.ClickableMovementMethod
 import com.looker.droidify.widget.StableRecyclerAdapter
 import java.lang.ref.WeakReference
 import java.util.*
@@ -406,7 +408,7 @@ class ProductAdapter(private val callbacks: Callbacks, private val columns: Int)
 
     private class TextViewHolder(context: Context) :
         RecyclerView.ViewHolder(MaterialTextView(context)) {
-        val text: MaterialTextView
+        val text: TextView
             get() = itemView as MaterialTextView
 
         init {
@@ -414,6 +416,7 @@ class ProductAdapter(private val callbacks: Callbacks, private val columns: Int)
             itemView.setTextSizeScaled(15)
             itemView.setTextColor(itemView.context.getColorFromAttr(android.R.attr.textColor))
             itemView.resources.sizeScaled(16).let { itemView.setPadding(it, it, it, it) }
+            itemView.movementMethod = ClickableMovementMethod
             itemView.layoutParams = RecyclerView.LayoutParams(
                 RecyclerView.LayoutParams.MATCH_PARENT,
                 RecyclerView.LayoutParams.WRAP_CONTENT
diff --git a/src/main/kotlin/com/looker/droidify/widget/ClickableMovementMethod.kt b/src/main/kotlin/com/looker/droidify/widget/ClickableMovementMethod.kt
new file mode 100644
index 00000000..8d48a5d5
--- /dev/null
+++ b/src/main/kotlin/com/looker/droidify/widget/ClickableMovementMethod.kt
@@ -0,0 +1,67 @@
+package com.looker.droidify.widget
+
+import android.text.Selection
+import android.text.Spannable
+import android.text.method.MovementMethod
+import android.text.style.ClickableSpan
+import android.view.KeyEvent
+import android.view.MotionEvent
+import android.widget.TextView
+
+object ClickableMovementMethod : MovementMethod {
+    override fun initialize(widget: TextView, text: Spannable) {
+        Selection.removeSelection(text)
+    }
+
+    override fun onTouchEvent(widget: TextView, text: Spannable, event: MotionEvent): Boolean {
+        val action = event.action
+        val down = action == MotionEvent.ACTION_DOWN
+        val up = action == MotionEvent.ACTION_UP
+        return (down || up) && run {
+            val x = event.x.toInt() - widget.totalPaddingLeft + widget.scrollX
+            val y = event.y.toInt() - widget.totalPaddingTop + widget.scrollY
+            val layout = widget.layout
+            val line = layout.getLineForVertical(y)
+            val offset = layout.getOffsetForHorizontal(line, x.toFloat())
+            val span = text.getSpans(offset, offset, ClickableSpan::class.java)?.firstOrNull()
+            if (span != null) {
+                if (down) {
+                    Selection.setSelection(text, text.getSpanStart(span), text.getSpanEnd(span))
+                } else {
+                    span.onClick(widget)
+                }
+                true
+            } else {
+                Selection.removeSelection(text)
+                false
+            }
+        }
+    }
+
+    override fun onKeyDown(
+        widget: TextView,
+        text: Spannable,
+        keyCode: Int,
+        event: KeyEvent,
+    ): Boolean = false
+
+    override fun onKeyUp(
+        widget: TextView,
+        text: Spannable,
+        keyCode: Int,
+        event: KeyEvent,
+    ): Boolean = false
+
+    override fun onKeyOther(view: TextView, text: Spannable, event: KeyEvent): Boolean = false
+    override fun onTakeFocus(widget: TextView, text: Spannable, direction: Int) = Unit
+    override fun onTrackballEvent(widget: TextView, text: Spannable, event: MotionEvent): Boolean =
+        false
+
+    override fun onGenericMotionEvent(
+        widget: TextView,
+        text: Spannable,
+        event: MotionEvent,
+    ): Boolean = false
+
+    override fun canSelectArbitrarily(): Boolean = false
+}