Add extensions for CharSequence.isEmpty and TextView.content that accepts CharSequence

app/src/main/java/chat/rocket/android/util/Extensions.kt

@@ -5,6 +5,7 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.widget.TextView
+import ru.noties.markwon.Markwon
 
 fun String.ifEmpty(value: String): String {
     if (isEmpty()) {
@@ -13,6 +14,13 @@ fun String.ifEmpty(value: String): String {
     return this
 }
 
+fun CharSequence.ifEmpty(value: String): CharSequence {
+    if (isEmpty()) {
+        return value
+    }
+    return this
+}
+
 fun View.setVisible(visible: Boolean) {
     visibility = if (visible) {
         View.VISIBLE
@@ -31,6 +39,16 @@ var TextView.textContent: String
         text = value
     }
 
+var TextView.content: CharSequence
+    get() = text
+    set(value) {
+        Markwon.unscheduleDrawables(this)
+        Markwon.unscheduleTableRows(this)
+        text = value
+        Markwon.scheduleDrawables(this)
+        Markwon.scheduleTableRows(this)
+    }
+
 var TextView.hintContent: String
     get() = hint.toString()
     set(value) {