Revert change to task click handler, since it's not leaking.

Author: khaykov

aztec/src/main/kotlin/org/wordpress/aztec/AztecText.kt

@@ -542,7 +542,7 @@ open class AztecText : AppCompatEditText, TextWatcher, UnknownHtmlSpan.OnUnknown
                 exclusiveBlockStyles = BlockFormatter.ExclusiveBlockStyles(styles.getBoolean(R.styleable.AztecText_exclusiveBlocks, false), verticalParagraphPadding),
                 paragraphStyle = BlockFormatter.ParagraphStyle(verticalParagraphMargin)
         )
-        EnhancedMovementMethod.setTaskListClickHandler(TaskListClickHandler(listStyle))
+        EnhancedMovementMethod.taskListClickHandler = TaskListClickHandler(listStyle)
 
         linkFormatter = LinkFormatter(this, LinkFormatter.LinkStyle(styles.getColor(
                 R.styleable.AztecText_linkColor, 0),
@@ -955,7 +955,6 @@ open class AztecText : AppCompatEditText, TextWatcher, UnknownHtmlSpan.OnUnknown
             blockEditorDialog!!.dismiss()
         }
         EnhancedMovementMethod.setLinkTappedListener(null)
-        EnhancedMovementMethod.setTaskListClickHandler(null)
     }
 
     // We are exposing this method in order to allow subclasses to set their own alpha value

aztec/src/main/kotlin/org/wordpress/aztec/EnhancedMovementMethod.kt

@@ -15,13 +15,10 @@ import java.lang.ref.WeakReference
  * http://stackoverflow.com/a/23566268/569430
  */
 object EnhancedMovementMethod : ArrowKeyMovementMethod() {
-    private var taskListClickHandlerRef: WeakReference<TaskListClickHandler?> = WeakReference(null)
+    var taskListClickHandler: TaskListClickHandler? = null
     private var linkTappedListenerRef: WeakReference<AztecText.OnLinkTappedListener?> = WeakReference(null)
     var isLinkTapEnabled = false
 
-    fun setTaskListClickHandler(handler: TaskListClickHandler?) {
-        taskListClickHandlerRef = WeakReference(handler)
-    }
 
     fun setLinkTappedListener(listener: AztecText.OnLinkTappedListener?) {
         linkTappedListenerRef = WeakReference(listener)
@@ -47,7 +44,7 @@ object EnhancedMovementMethod : ArrowKeyMovementMethod() {
             val off = layout.getOffsetForHorizontal(line, x.toFloat())
 
             // This handles the case when the task list checkbox is clicked
-            if (taskListClickHandlerRef.get()?.handleTaskListClick(text, off, x, widget.totalPaddingStart) == true) {
+            if (taskListClickHandler?.handleTaskListClick(text, off, x, widget.totalPaddingStart) == true) {
                 return true
             }