143 lines
5.9 KiB
Java
143 lines
5.9 KiB
Java
package app.fedilab.android.mastodon.helper;
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import android.content.Context;
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import android.content.SharedPreferences;
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import android.graphics.Canvas;
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import android.graphics.Paint;
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import android.graphics.drawable.Animatable;
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import android.graphics.drawable.Drawable;
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import android.text.SpannableStringBuilder;
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import android.text.style.ReplacementSpan;
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import android.view.View;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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import androidx.preference.PreferenceManager;
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import com.bumptech.glide.Glide;
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import com.bumptech.glide.request.target.CustomTarget;
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import com.bumptech.glide.request.target.Target;
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import com.bumptech.glide.request.transition.Transition;
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import java.lang.ref.WeakReference;
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import java.util.List;
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import java.util.regex.Matcher;
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import java.util.regex.Pattern;
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import app.fedilab.android.R;
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import app.fedilab.android.mastodon.client.entities.api.Emoji;
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import app.fedilab.android.mastodon.client.entities.api.Status;
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public class CustomEmoji extends ReplacementSpan {
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private float scale;
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private final WeakReference<View> viewWeakReference;
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private Drawable imageDrawable;
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private boolean callbackCalled;
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CustomEmoji(WeakReference<View> viewWeakReference) {
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Context mContext = viewWeakReference.get().getContext();
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this.viewWeakReference = viewWeakReference;
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SharedPreferences sharedpreferences = PreferenceManager.getDefaultSharedPreferences(mContext);
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scale = sharedpreferences.getFloat(mContext.getString(R.string.SET_FONT_SCALE), 1.1f);
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if (scale > 1.3f) {
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scale = 1.3f;
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}
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callbackCalled = false;
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}
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public SpannableStringBuilder makeEmoji(SpannableStringBuilder content, List<Emoji> emojiList, boolean animate, Status.Callback callback) {
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if (emojiList != null && emojiList.size() > 0) {
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int count = 1;
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for (Emoji emoji : emojiList) {
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Matcher matcher = Pattern.compile(":" + emoji.shortcode + ":", Pattern.LITERAL)
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.matcher(content);
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while (matcher.find()) {
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CustomEmoji customEmoji = new CustomEmoji(new WeakReference<>(viewWeakReference.get()));
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content.setSpan(customEmoji, matcher.start(), matcher.end(), 0);
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Glide.with(viewWeakReference.get())
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.asDrawable()
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.load(animate ? emoji.url : emoji.static_url)
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.into(customEmoji.getTarget(animate, count == emojiList.size() && !callbackCalled ? callback : null));
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}
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count++;
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}
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}
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return content;
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}
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@Override
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public int getSize(@NonNull Paint paint, CharSequence charSequence, int i, int i1, @Nullable Paint.FontMetricsInt fontMetricsInt) {
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if (fontMetricsInt != null) {
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Paint.FontMetrics fontMetrics = paint.getFontMetrics();
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fontMetricsInt.top = (int) fontMetrics.top;
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fontMetricsInt.ascent = (int) fontMetrics.ascent;
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fontMetricsInt.descent = (int) fontMetrics.descent;
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fontMetricsInt.bottom = (int) fontMetrics.bottom;
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}
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return (int) (paint.getTextSize() * scale);
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}
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@Override
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public void draw(@NonNull Canvas canvas, CharSequence charSequence, int start, int end, float x, int top, int y, int bottom, @NonNull Paint paint) {
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if (imageDrawable != null) {
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canvas.save();
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int emojiSize = (int) (paint.getTextSize() * scale);
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imageDrawable.setBounds(0, 0, emojiSize, emojiSize);
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int transY = bottom - imageDrawable.getBounds().bottom;
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transY -= paint.getFontMetrics().descent / 2;
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canvas.translate(x, (float) transY);
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imageDrawable.draw(canvas);
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canvas.restore();
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}
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}
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public Target<Drawable> getTarget(boolean animate, Status.Callback callback) {
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return new CustomTarget<Drawable>() {
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@Override
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public void onResourceReady(@NonNull Drawable resource, @Nullable Transition<? super Drawable> transition) {
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View view = viewWeakReference.get();
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if (animate && resource instanceof Animatable) {
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Drawable.Callback drawableCallBack = resource.getCallback();
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resource.setCallback(new Drawable.Callback() {
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@Override
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public void invalidateDrawable(@NonNull Drawable drawable) {
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if (drawableCallBack != null) {
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drawableCallBack.invalidateDrawable(drawable);
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}
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view.invalidate();
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}
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@Override
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public void scheduleDrawable(@NonNull Drawable drawable, @NonNull Runnable runnable, long l) {
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if (drawableCallBack != null) {
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drawableCallBack.scheduleDrawable(drawable, runnable, l);
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}
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}
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@Override
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public void unscheduleDrawable(@NonNull Drawable drawable, @NonNull Runnable runnable) {
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if (drawableCallBack != null) {
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drawableCallBack.unscheduleDrawable(drawable, runnable);
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}
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}
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});
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((Animatable) resource).start();
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}
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imageDrawable = resource;
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if (view != null) {
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view.invalidate();
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}
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if (callback != null && !callbackCalled) {
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callbackCalled = true;
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callback.emojiFetched();
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}
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}
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@Override
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public void onLoadCleared(@Nullable Drawable placeholder) {
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}
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};
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}
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} |