RenderTask.java

package pl.droidsonroids.gif;

import android.os.SystemClock;

import java.util.concurrent.TimeUnit;

import static pl.droidsonroids.gif.InvalidationHandler.MSG_TYPE_INVALIDATION;

class RenderTask extends SafeRunnable {

	RenderTask(GifDrawable gifDrawable) {
		super(gifDrawable);
	}

	@Override
	public void doWork() {
		final long invalidationDelay = mGifDrawable.mNativeInfoHandle.renderFrame(mGifDrawable.mBuffer);
		if (invalidationDelay >= 0) {
			mGifDrawable.mNextFrameRenderTime = SystemClock.uptimeMillis() + invalidationDelay;
			if (mGifDrawable.isVisible() && mGifDrawable.mIsRunning && !mGifDrawable.mIsRenderingTriggeredOnDraw) {
				mGifDrawable.mExecutor.remove(this);
				mGifDrawable.mRenderTaskSchedule = mGifDrawable.mExecutor.schedule(this, invalidationDelay, TimeUnit.MILLISECONDS);
			}
			if (!mGifDrawable.mListeners.isEmpty() && mGifDrawable.getCurrentFrameIndex() == mGifDrawable.mNativeInfoHandle.getNumberOfFrames() - 1) {
				mGifDrawable.mInvalidationHandler.sendEmptyMessageAtTime(mGifDrawable.getCurrentLoop(), mGifDrawable.mNextFrameRenderTime);
			}
		} else {
			mGifDrawable.mNextFrameRenderTime = Long.MIN_VALUE;
			mGifDrawable.mIsRunning = false;
		}
		if (mGifDrawable.isVisible() && !mGifDrawable.mInvalidationHandler.hasMessages(MSG_TYPE_INVALIDATION)) {
			mGifDrawable.mInvalidationHandler.sendEmptyMessageAtTime(MSG_TYPE_INVALIDATION, 0);
		}
	}
}