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219 changes: 219 additions & 0 deletions
219
TMessagesProj/src/main/java/tw/nekomimi/nekogram/TextViewEffects.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,219 @@ | ||
| package tw.nekomimi.nekogram; | ||
|
|
||
| import android.content.Context; | ||
| import android.graphics.Canvas; | ||
| import android.graphics.Paint; | ||
| import android.graphics.Path; | ||
| import android.graphics.PorterDuff; | ||
| import android.graphics.PorterDuffXfermode; | ||
| import android.graphics.Rect; | ||
| import android.graphics.Region; | ||
| import android.text.Layout; | ||
| import android.text.Spanned; | ||
| import android.view.MotionEvent; | ||
|
|
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| import org.telegram.messenger.AndroidUtilities; | ||
| import org.telegram.ui.ActionBar.Theme; | ||
| import org.telegram.ui.Components.AnimatedEmojiDrawable; | ||
| import org.telegram.ui.Components.AnimatedEmojiSpan; | ||
| import org.telegram.ui.Components.LinkSpanDrawable; | ||
| import org.telegram.ui.Components.spoilers.SpoilerEffect; | ||
| import org.telegram.ui.Components.spoilers.SpoilersClickDetector; | ||
|
|
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| import java.util.ArrayList; | ||
| import java.util.List; | ||
| import java.util.Stack; | ||
|
|
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| public class TextViewEffects extends LinkSpanDrawable.LinksTextView { | ||
|
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| private final SpoilersClickDetector clickDetector; | ||
| private final List<SpoilerEffect> spoilers = new ArrayList<>(); | ||
| private final Stack<SpoilerEffect> spoilersPool = new Stack<>(); | ||
| private boolean isSpoilersRevealed; | ||
| private final Path path = new Path(); | ||
| private Paint xRefPaint; | ||
|
|
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| private int emojiOnlyCount; | ||
| private AnimatedEmojiSpan.EmojiGroupedSpans animatedEmojiDrawables; | ||
| private Layout lastLayout = null; | ||
| private int lastTextLength; | ||
|
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| public TextViewEffects(Context context) { | ||
| this(context, null); | ||
| } | ||
|
|
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| public TextViewEffects(Context context, Theme.ResourcesProvider resourcesProvider) { | ||
| super(context, resourcesProvider); | ||
|
|
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| clickDetector = new SpoilersClickDetector(this, spoilers, (eff, x, y) -> { | ||
| if (isSpoilersRevealed) return; | ||
|
|
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| eff.setOnRippleEndCallback(() -> post(() -> { | ||
| isSpoilersRevealed = true; | ||
| invalidateSpoilers(); | ||
| })); | ||
|
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| float rad = (float) Math.sqrt(Math.pow(getWidth(), 2) + Math.pow(getHeight(), 2)); | ||
| for (SpoilerEffect ef : spoilers) | ||
| ef.startRipple(x, y, rad); | ||
| }); | ||
| } | ||
|
|
||
| @Override | ||
| public boolean dispatchTouchEvent(MotionEvent event) { | ||
| if (clickDetector.onTouchEvent(event)) | ||
| return true; | ||
| return super.dispatchTouchEvent(event); | ||
| } | ||
|
|
||
| public void setText(CharSequence text, int emojiOnlyCount) { | ||
| this.emojiOnlyCount = emojiOnlyCount; | ||
| super.setText(text); | ||
| } | ||
|
|
||
| @Override | ||
| public void setText(CharSequence text, BufferType type) { | ||
| isSpoilersRevealed = false; | ||
| super.setText(text, type); | ||
| } | ||
|
|
||
| @Override | ||
| protected void onTextChanged(CharSequence text, int start, int lengthBefore, int lengthAfter) { | ||
| super.onTextChanged(text, start, lengthBefore, lengthAfter); | ||
| invalidateSpoilers(); | ||
| } | ||
|
|
||
| @Override | ||
| protected void onSizeChanged(int w, int h, int oldw, int oldh) { | ||
| super.onSizeChanged(w, h, oldw, oldh); | ||
| invalidateSpoilers(); | ||
| } | ||
|
|
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| @Override | ||
| protected void onDetachedFromWindow() { | ||
| super.onDetachedFromWindow(); | ||
|
|
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| AnimatedEmojiSpan.release(this, animatedEmojiDrawables); | ||
| } | ||
|
|
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| @Override | ||
| protected void onAttachedToWindow() { | ||
| super.onAttachedToWindow(); | ||
| updateAnimatedEmoji(false); | ||
| } | ||
|
|
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| @Override | ||
| protected void onLayout(boolean changed, int left, int top, int right, int bottom) { | ||
| super.onLayout(changed, left, top, right, bottom); | ||
| updateAnimatedEmoji(false); | ||
| } | ||
|
|
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| @Override | ||
| protected void onDraw(Canvas canvas) { | ||
| int pl = getPaddingLeft(), pt = getPaddingTop(); | ||
|
|
||
| canvas.save(); | ||
| path.rewind(); | ||
| for (SpoilerEffect eff : spoilers) { | ||
| Rect bounds = eff.getBounds(); | ||
| path.addRect(bounds.left + pl, bounds.top + pt, bounds.right + pl, bounds.bottom + pt, Path.Direction.CW); | ||
| } | ||
| canvas.clipPath(path, Region.Op.DIFFERENCE); | ||
| updateAnimatedEmoji(false); | ||
| super.onDraw(canvas); | ||
| if (animatedEmojiDrawables != null) { | ||
| AnimatedEmojiSpan.drawAnimatedEmojis(canvas, getLayout(), animatedEmojiDrawables, 0, spoilers, computeVerticalScrollOffset() - AndroidUtilities.dp(6), computeVerticalScrollOffset() + computeVerticalScrollExtent(), 0, 1f); | ||
| } | ||
| canvas.restore(); | ||
|
|
||
| canvas.save(); | ||
| canvas.clipPath(path); | ||
| path.rewind(); | ||
| if (!spoilers.isEmpty()) { | ||
| spoilers.get(0).getRipplePath(path); | ||
| } | ||
| canvas.clipPath(path); | ||
| super.onDraw(canvas); | ||
| canvas.restore(); | ||
|
|
||
| if (!spoilers.isEmpty()) { | ||
| boolean useAlphaLayer = spoilers.get(0).getRippleProgress() != -1; | ||
| if (useAlphaLayer) { | ||
| canvas.saveLayer(0, 0, getMeasuredWidth(), getMeasuredHeight(), null, Canvas.ALL_SAVE_FLAG); | ||
| } else { | ||
| canvas.save(); | ||
| } | ||
| canvas.translate(getPaddingLeft(), getPaddingTop() + AndroidUtilities.dp(2)); | ||
| for (SpoilerEffect eff : spoilers) { | ||
| eff.setColor(getPaint().getColor()); | ||
| eff.draw(canvas); | ||
| } | ||
|
|
||
| if (useAlphaLayer) { | ||
| path.rewind(); | ||
| spoilers.get(0).getRipplePath(path); | ||
| if (xRefPaint == null) { | ||
| xRefPaint = new Paint(Paint.ANTI_ALIAS_FLAG); | ||
| xRefPaint.setColor(0xff000000); | ||
| xRefPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.CLEAR)); | ||
| } | ||
| canvas.drawPath(path, xRefPaint); | ||
| } | ||
| canvas.restore(); | ||
| } | ||
| } | ||
|
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| public void updateAnimatedEmoji(boolean force) { | ||
| int newTextLength = (getLayout() == null || getLayout().getText() == null) ? 0 : getLayout().getText().length(); | ||
| if (force || lastLayout != getLayout() || lastTextLength != newTextLength) { | ||
| int cacheType = -1; | ||
| switch (emojiOnlyCount) { | ||
| case 0: | ||
| case 1: | ||
| case 2: | ||
| case 3: | ||
| case 4: | ||
| cacheType = AnimatedEmojiDrawable.CACHE_TYPE_MESSAGES_LARGE; | ||
| break; | ||
| case 5: | ||
| case 6: | ||
| cacheType = AnimatedEmojiDrawable.CACHE_TYPE_KEYBOARD; | ||
| break; | ||
| case 7: | ||
| case 8: | ||
| case 9: | ||
| default: | ||
| if (emojiOnlyCount > 9) { | ||
| cacheType = AnimatedEmojiDrawable.CACHE_TYPE_MESSAGES; | ||
| } | ||
| break; | ||
| } | ||
| animatedEmojiDrawables = AnimatedEmojiSpan.update(cacheType, this, animatedEmojiDrawables, getLayout()); | ||
| lastLayout = getLayout(); | ||
| lastTextLength = newTextLength; | ||
| } | ||
| } | ||
|
|
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| private void invalidateSpoilers() { | ||
| if (spoilers == null) return; | ||
| spoilersPool.addAll(spoilers); | ||
| spoilers.clear(); | ||
|
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| if (isSpoilersRevealed) { | ||
| invalidate(); | ||
| return; | ||
| } | ||
|
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| Layout layout = getLayout(); | ||
| if (layout != null && layout.getText() instanceof Spanned) { | ||
| if (animatedEmojiDrawables != null) { | ||
| animatedEmojiDrawables.recordPositions(false); | ||
| } | ||
| SpoilerEffect.addSpoilers(this, spoilersPool, spoilers); | ||
| if (animatedEmojiDrawables != null) { | ||
| animatedEmojiDrawables.recordPositions(true); | ||
| } | ||
| } | ||
| invalidate(); | ||
| } | ||
| } |
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