Implemented secondary buttons

app/src/main/java/com/philliphsu/clock2/Timer.java

@@ -98,8 +98,9 @@ public abstract class Timer {
     }
 
     public void addOneMinute() {
-        if (!isRunning())
-            throw new IllegalStateException("Cannot extend a timer that is not running");
+        // Allow extending even if paused.
+//        if (!isRunning())
+//            throw new IllegalStateException("Cannot extend a timer that is not running");
         if (expired()) {
             endTime = SystemClock.elapsedRealtime() + MINUTE;
         } else {

app/src/main/java/com/philliphsu/clock2/timers/TimerController.java

@@ -1,6 +1,8 @@
 package com.philliphsu.clock2.timers;
 
 import android.os.SystemClock;
+import android.view.View;
+import android.widget.ImageButton;
 
 import com.philliphsu.clock2.Timer;
 
@@ -10,32 +12,45 @@ import com.philliphsu.clock2.Timer;
 public class TimerController {
     private final Timer mTimer;
     private final CountdownChronometer mChronometer;
+    private final ImageButton mAddOneMinute;
+    private final ImageButton mStartPause;
+    private final ImageButton mStop;
 
-    public TimerController(Timer timer, CountdownChronometer chronometer) {
+    public TimerController(Timer timer, CountdownChronometer chronometer, ImageButton addOneMinute,
+                           ImageButton startPause, ImageButton stop) {
         mTimer = timer;
         mChronometer = chronometer;
+        mAddOneMinute = addOneMinute;
+        mStartPause = startPause;
+        mStop = stop;
         init();
     }
     
     private void init() {
         mChronometer.setBase(SystemClock.elapsedRealtime() + mTimer.duration());
+        updateStartPauseIcon();
+        setSecondaryButtonsVisible(false);
     }
 
     public void start() {
         mTimer.start();
         mChronometer.setBase(mTimer.endTime());
         mChronometer.start();
+        updateStartPauseIcon();
+        setSecondaryButtonsVisible(true);
     }
 
     public void pause() {
         mTimer.pause();
         mChronometer.stop();
+        updateStartPauseIcon();
     }
 
     public void resume() {
         mTimer.resume();
         mChronometer.setBase(mTimer.endTime());
         mChronometer.start();
+        updateStartPauseIcon();
     }
 
     public void stop() {
@@ -48,4 +63,15 @@ public class TimerController {
         mTimer.addOneMinute();
         mChronometer.setBase(mTimer.endTime());
     }
+
+    public void updateStartPauseIcon() {
+        // TODO: Pause and start icons, resp.
+//        mStartPause.setImageResource(mTimer.isRunning() ? 0 : 0);
+    }
+
+    public void setSecondaryButtonsVisible(boolean visible) {
+        int visibility = visible ? View.VISIBLE : View.INVISIBLE;
+        mAddOneMinute.setVisibility(visibility);
+        mStop.setVisibility(visibility);
+    }
 }

app/src/main/java/com/philliphsu/clock2/timers/TimerViewHolder.java

@@ -37,9 +37,10 @@ public class TimerViewHolder extends BaseViewHolder<Timer> {
         super.onBind(timer);
         bindLabel(timer.label());
         // We can't create the controller until this VH binds, because
-        // the chronometer only exists after this point.
-        mController = new TimerController(timer, mChronometer);
+        // the widgets only exist after this point.
+        mController = new TimerController(timer, mChronometer, mAddOneMinute, mStartPause, mStop);
         bindChronometer(timer);
+        bindButtonControls(timer);
     }
 
     @OnClick(R.id.start_pause)
@@ -56,6 +57,16 @@ public class TimerViewHolder extends BaseViewHolder<Timer> {
         }
     }
 
+    @OnClick(R.id.add_one_minute)
+    void addOneMinute() {
+        mController.addOneMinute();
+    }
+
+    @OnClick(R.id.stop)
+    void stop() {
+        mController.stop();
+    }
+
     private void bindLabel(String label) {
         if (!label.isEmpty()) {
             mLabel.setText(label);
@@ -94,4 +105,9 @@ public class TimerViewHolder extends BaseViewHolder<Timer> {
             mChronometer.setDuration(timer.timeRemaining());
         }
     }
+
+    private void bindButtonControls(Timer timer) {
+        mController.updateStartPauseIcon();
+        mController.setSecondaryButtonsVisible(timer.hasStarted());
+    }
 }