fix EmojiTextView...

Closes #3837
// FREEBIE

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

@@ -1,15 +1,20 @@
 package org.thoughtcrime.securesms.components.emoji;
 
 import android.content.Context;
+import android.graphics.Paint.FontMetricsInt;
 import android.graphics.drawable.Drawable;
 import android.support.annotation.NonNull;
 import android.support.v7.widget.AppCompatTextView;
-import android.text.InputFilter;
+import android.text.TextUtils;
+import android.text.TextUtils.TruncateAt;
 import android.util.AttributeSet;
 
 import org.thoughtcrime.securesms.components.emoji.EmojiProvider.EmojiDrawable;
+import org.thoughtcrime.securesms.util.ViewUtil;
 
 public class EmojiTextView extends AppCompatTextView {
+  private CharSequence source;
+  private boolean      needsEllipsizing;
 
   public EmojiTextView(Context context) {
     this(context, null);
@@ -21,11 +26,42 @@ public class EmojiTextView extends AppCompatTextView {
 
   public EmojiTextView(Context context, AttributeSet attrs, int defStyleAttr) {
     super(context, attrs, defStyleAttr);
-    setFilters(new InputFilter[]{ new EmojiFilter(this) });
+  }
+
+  @Override public void setText(CharSequence text, BufferType type) {
+    source = EmojiProvider.getInstance(getContext()).emojify(text, this);
+    setTextEllipsized(source);
+  }
+
+  public void setTextEllipsized(final CharSequence source) {
+    super.setText(needsEllipsizing ? ViewUtil.ellipsize(source, this) : source, BufferType.SPANNABLE);
   }
 
   @Override public void invalidateDrawable(@NonNull Drawable drawable) {
     if (drawable instanceof EmojiDrawable) invalidate();
     else                                   super.invalidateDrawable(drawable);
   }
+
+  @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+    final int size = MeasureSpec.getSize(widthMeasureSpec);
+    final int mode = MeasureSpec.getMode(widthMeasureSpec);
+    if (getEllipsize() == TruncateAt.END                             &&
+        !TextUtils.isEmpty(source)                                   &&
+        (mode == MeasureSpec.AT_MOST || mode == MeasureSpec.EXACTLY) &&
+        getPaint().breakText(source, 0, source.length()-1, true, size, null) != source.length())
+    {
+      needsEllipsizing = true;
+      FontMetricsInt font = getPaint().getFontMetricsInt();
+      super.onMeasure(MeasureSpec.makeMeasureSpec(size, MeasureSpec.EXACTLY),
+                      MeasureSpec.makeMeasureSpec(Math.abs(font.top - font.bottom), MeasureSpec.EXACTLY));
+    } else {
+      needsEllipsizing = false;
+      super.onMeasure(widthMeasureSpec, heightMeasureSpec);
+    }
+  }
+
+  @Override protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
+    if (changed) setTextEllipsized(source);
+    super.onLayout(changed, left, top, right, bottom);
+  }
 }

src/org/thoughtcrime/securesms/util/ViewUtil.java

@@ -18,8 +18,13 @@ package org.thoughtcrime.securesms.util;
 
 import android.graphics.drawable.Drawable;
 import android.support.annotation.DrawableRes;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.text.TextUtils;
+import android.text.TextUtils.TruncateAt;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.TextView;
 
 public class ViewUtil {
   public static void setBackgroundSavingPadding(View v, Drawable drawable) {
@@ -45,4 +50,15 @@ public class ViewUtil {
     if (childIndex > -1) parent.removeView(toRemove);
     parent.addView(toAdd, childIndex > -1 ? childIndex : defaultIndex);
   }
+
+  public static CharSequence ellipsize(@Nullable CharSequence text, @NonNull TextView view) {
+    if (TextUtils.isEmpty(text) || view.getWidth() == 0 || view.getEllipsize() != TruncateAt.END) {
+      return text;
+    } else {
+      return TextUtils.ellipsize(text,
+                                 view.getPaint(),
+                                 view.getWidth() - view.getPaddingRight() - view.getPaddingLeft(),
+                                 TruncateAt.END);
+    }
+  }
 }