Compose media attachment redesign

mastodon/src/main/java/org/joinmastodon/android/ui/utils/TransferSpeedTracker.java

@@ -0,0 +1,51 @@
+package org.joinmastodon.android.ui.utils;
+
+import android.os.SystemClock;
+
+public class TransferSpeedTracker{
+   private final double SMOOTHING_FACTOR=0.05;
+
+   private long lastKnownPos;
+   private long lastKnownPosTime;
+   private double lastSpeed;
+   private double averageSpeed;
+   private long totalBytes;
+
+   public void addSample(long position){
+      if(lastKnownPosTime==0){
+         lastKnownPosTime=SystemClock.uptimeMillis();
+         lastKnownPos=position;
+      }else{
+         long time=SystemClock.uptimeMillis();
+         lastSpeed=(position-lastKnownPos)/((double)(time-lastKnownPosTime)/1000.0);
+         lastKnownPos=position;
+         lastKnownPosTime=time;
+      }
+   }
+
+   public double getLastSpeed(){
+      return lastSpeed;
+   }
+
+   public double getAverageSpeed(){
+      return averageSpeed;
+   }
+
+   public long updateAndGetETA(){ // must be called at a constant interval
+      if(averageSpeed==0.0)
+         averageSpeed=lastSpeed;
+      else
+         averageSpeed=SMOOTHING_FACTOR*lastSpeed+(1.0-SMOOTHING_FACTOR)*averageSpeed;
+      return Math.round((totalBytes-lastKnownPos)/averageSpeed);
+   }
+
+   public void setTotalBytes(long totalBytes){
+      this.totalBytes=totalBytes;
+   }
+
+   public void reset(){
+      lastKnownPos=lastKnownPosTime=0;
+      lastSpeed=averageSpeed=0.0;
+      totalBytes=0;
+   }
+}

mastodon/src/main/java/org/joinmastodon/android/ui/utils/UiUtils.java

@@ -201,6 +201,14 @@ public class UiUtils{
 		mainHandler.post(runnable);
 	}
 
+	public static void runOnUiThread(Runnable runnable, long delay){
+		mainHandler.postDelayed(runnable, delay);
+	}
+
+	public static void removeCallbacks(Runnable runnable){
+		mainHandler.removeCallbacks(runnable);
+	}
+
 	/** Linear interpolation between {@code startValue} and {@code endValue} by {@code fraction}. */
 	public static int lerp(int startValue, int endValue, float fraction) {
 		return startValue + Math.round(fraction * (endValue - startValue));
@@ -218,6 +226,18 @@ public class UiUtils{
 		return uri.getLastPathSegment();
 	}
 
+	public static String formatFileSize(Context context, long size, boolean atLeastKB){
+		if(size<1024 && !atLeastKB){
+			return context.getString(R.string.file_size_bytes, size);
+		}else if(size<1024*1024){
+			return context.getString(R.string.file_size_kb, size/1024.0);
+		}else if(size<1024*1024*1024){
+			return context.getString(R.string.file_size_mb, size/(1024.0*1024.0));
+		}else{
+			return context.getString(R.string.file_size_gb, size/(1024.0*1024.0*1024.0));
+		}
+	}
+
 	public static MediaType getFileMediaType(File file){
 		String name=file.getName();
 		return MediaType.parse(MimeTypeMap.getSingleton().getMimeTypeFromExtension(name.substring(name.lastIndexOf('.')+1)));