fix AppCompatEditText Transformation issues

Closes #3168
// FREEBIE

src/org/thoughtcrime/securesms/components/FromTextView.java

@@ -8,13 +8,13 @@ import android.text.SpannableStringBuilder;
 import android.text.TextUtils;
 import android.text.style.StyleSpan;
 import android.util.AttributeSet;
-import android.widget.TextView;
 
 import org.thoughtcrime.securesms.R;
+import org.thoughtcrime.securesms.components.emoji.EmojiTextView;
 import org.thoughtcrime.securesms.recipients.Recipient;
 import org.thoughtcrime.securesms.recipients.Recipients;
 
-public class FromTextView extends TextView {
+public class FromTextView extends EmojiTextView {
 
   public FromTextView(Context context) {
     super(context);

src/org/thoughtcrime/securesms/components/emoji/EmojiEditText.java

@@ -3,6 +3,9 @@ package org.thoughtcrime.securesms.components.emoji;
 import android.content.Context;
 import android.support.v7.widget.AppCompatEditText;
 import android.util.AttributeSet;
+import android.util.Log;
+
+import org.thoughtcrime.securesms.components.emoji.EmojiProvider.InvalidatingPageLoadedListener;
 
 public class EmojiEditText extends AppCompatEditText {
   public EmojiEditText(Context context) {
@@ -23,16 +26,17 @@ public class EmojiEditText extends AppCompatEditText {
   }
 
   private void init() {
-    setTransformationMethod(new EmojiTransformationMethod());
   }
 
   public void insertEmoji(int codePoint) {
-    final char[] chars = Character.toChars(codePoint);
-    final String text  = new String(chars);
-    final int    start = getSelectionStart();
-    final int    end   = getSelectionEnd();
+    final int          start = getSelectionStart();
+    final int          end   = getSelectionEnd();
+    final char[]       chars = Character.toChars(codePoint);
+    final CharSequence text  = EmojiProvider.getInstance(getContext()).emojify(new String(chars),
+                                                                               EmojiProvider.EMOJI_SMALL,
+                                                                               new InvalidatingPageLoadedListener(this));
 
-    getText().replace(Math.min(start, end), Math.max(start, end), text, 0, text.length());
+    getText().replace(Math.min(start, end), Math.max(start, end), text);
     setSelection(end + chars.length);
   }
 }

src/org/thoughtcrime/securesms/components/emoji/EmojiTextView.java

@@ -2,11 +2,16 @@ package org.thoughtcrime.securesms.components.emoji;
 
 import android.annotation.TargetApi;
 import android.content.Context;
+import android.graphics.Rect;
 import android.os.Build.VERSION_CODES;
+import android.support.v7.widget.AppCompatTextView;
+import android.text.method.TransformationMethod;
 import android.util.AttributeSet;
-import android.widget.TextView;
+import android.view.View;
 
-public class EmojiTextView extends TextView {
+import org.thoughtcrime.securesms.components.emoji.EmojiProvider.InvalidatingPageLoadedListener;
+
+public class EmojiTextView extends AppCompatTextView {
   public EmojiTextView(Context context) {
     super(context);
     init();
@@ -22,13 +27,19 @@ public class EmojiTextView extends TextView {
     init();
   }
 
-  @TargetApi(VERSION_CODES.LOLLIPOP)
-  public EmojiTextView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
-    super(context, attrs, defStyleAttr, defStyleRes);
-    init();
-  }
-
   private void init() {
     setTransformationMethod(new EmojiTransformationMethod());
   }
+
+  private static class EmojiTransformationMethod implements TransformationMethod {
+
+    @Override public CharSequence getTransformation(CharSequence source, View view) {
+      return EmojiProvider.getInstance(view.getContext()).emojify(source,
+                                                                  EmojiProvider.EMOJI_SMALL,
+                                                                  new InvalidatingPageLoadedListener(view));
+    }
+
+    @Override public void onFocusChanged(View view, CharSequence sourceText, boolean focused,
+                                         int direction, Rect previouslyFocusedRect) { }
+  }
 }

src/org/thoughtcrime/securesms/components/emoji/EmojiTransformationMethod.java

@@ -1,17 +0,0 @@
-package org.thoughtcrime.securesms.components.emoji;
-
-import android.graphics.Rect;
-import android.text.method.TransformationMethod;
-import android.view.View;
-
-import org.thoughtcrime.securesms.components.emoji.EmojiProvider.InvalidatingPageLoadedListener;
-
-class EmojiTransformationMethod implements TransformationMethod {
-
-  @Override public CharSequence getTransformation(CharSequence source, View view) {
-    return EmojiProvider.getInstance(view.getContext()).emojify(source, EmojiProvider.EMOJI_SMALL, new InvalidatingPageLoadedListener(view));
-  }
-
-  @Override public void onFocusChanged(View view, CharSequence sourceText, boolean focused,
-                                       int direction, Rect previouslyFocusedRect) { }
-}