ContactsController: tint "public conversation" button

Signed-off-by: Álvaro Brey <alvaro.brey@nextcloud.com>

app/src/main/java/com/nextcloud/talk/controllers/ContactsController.kt

@@ -631,12 +631,7 @@ class ContactsController(args: Bundle) :
                 ResourcesCompat.getColor(resources!!, R.color.colorBackgroundDarker, null),
                 PorterDuff.Mode.SRC_IN
             )
-        binding.conversationPrivacyToggle.publicCallLink
-            .background
-            .setColorFilter(
-                ResourcesCompat.getColor(resources!!, R.color.colorPrimary, null),
-                PorterDuff.Mode.SRC_IN
-            )
+        viewThemeUtils.colorImageViewButton(binding.conversationPrivacyToggle.publicCallLink)
         disengageProgressBar()
     }
 

app/src/main/java/com/nextcloud/talk/ui/theme/ViewThemeUtils.kt

@@ -24,6 +24,7 @@ package com.nextcloud.talk.ui.theme
 import android.content.Context
 import android.content.res.ColorStateList
 import android.content.res.Configuration
+import android.widget.ImageView
 import android.widget.TextView
 import com.google.android.material.floatingactionbutton.FloatingActionButton
 import javax.inject.Inject
@@ -48,7 +49,15 @@ class ViewThemeUtils @Inject constructor(val theme: ServerTheme) {
         fab.imageTintList = ColorStateList.valueOf(theme.colorText)
     }
 
-    fun colorTextView(titleTextView: TextView) {
-        titleTextView.setTextColor(getElementColor(titleTextView.context))
+    fun colorTextView(textView: TextView) {
+        textView.setTextColor(getElementColor(textView.context))
+    }
+
+    /**
+     * Colors the background as element color and the foreground as text color.
+     */
+    fun colorImageViewButton(imageView: ImageView) {
+        imageView.imageTintList = ColorStateList.valueOf(theme.colorText)
+        imageView.backgroundTintList = ColorStateList.valueOf(getElementColor(imageView.context))
     }
 }