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fix EmojiTextView...

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Closes #3837
// FREEBIE
This commit is contained in:
Jake McGinty 2015-07-28 15:38:38 -07:00 committed by Moxie Marlinspike
parent bbf33f88e0
commit c36c759c8b
2 changed files with 54 additions and 2 deletions
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40
src/org/thoughtcrime/securesms/components/emoji/EmojiTextView.java
View File

@ -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);
}
}

16
src/org/thoughtcrime/securesms/util/ViewUtil.java
View File

@ -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);
}
}
}