Fix issue where cursor blinker wouldn't automatically start after session change

The reason was that mTerminalCursorBlinkerRunnable inner class mEmulator wouldn't get updated to the new mEmulator on session change and would still be using the old session's.

Author: agnostic-apollo

terminal-view/src/main/java/com/termux/view/TerminalView.java

@@ -760,6 +760,10 @@ public void updateSize() {
             mEmulator = mTermSession.getEmulator();
             mClient.onEmulatorSet();
 
+            // Update mTerminalCursorBlinkerRunnable inner class mEmulator on session change
+            if (mTerminalCursorBlinkerRunnable != null)
+                mTerminalCursorBlinkerRunnable.setEmulator(mEmulator);
+
             mTopRow = 0;
             scrollTo(0, 0);
             invalidate();
@@ -966,7 +970,7 @@ private void stopTerminalCursorBlinker() {
 
     private class TerminalCursorBlinkerRunnable implements Runnable {
 
-        private final TerminalEmulator mEmulator;
+        private TerminalEmulator mEmulator;
         private final int mBlinkRate;
 
         // Initialize with false so that initial blink state is visible after toggling
@@ -977,6 +981,10 @@ public TerminalCursorBlinkerRunnable(TerminalEmulator emulator, int blinkRate) {
             mBlinkRate = blinkRate;
         }
 
+        public void setEmulator(TerminalEmulator emulator) {
+            mEmulator = emulator;
+        }
+
         public void run() {
             try {
                 if (mEmulator != null) {