Various updates mainly for extra keys

app/src/main/java/com/termux/terminal/TerminalEmulator.java

@@ -1816,6 +1816,7 @@ public final class TerminalEmulator {
 							return;
 						} else {
 							mColors.tryParseColor(colorIndex, textParameter.substring(parsingPairStart, i));
+                            mSession.onColorsChanged();
 							colorIndex = -1;
 							parsingPairStart = -1;
 						}
@@ -1851,6 +1852,7 @@ public final class TerminalEmulator {
 									+ String.format(Locale.US, "%04x", b) + bellOrStringTerminator);
 						} else {
 							mColors.tryParseColor(specialIndex, colorSpec);
+                            mSession.onColorsChanged();
 						}
 						specialIndex++;
 						if (endOfInput || (specialIndex > TextStyle.COLOR_INDEX_CURSOR) || ++charIndex >= textParameter.length()) break;
@@ -1877,6 +1879,7 @@ public final class TerminalEmulator {
 			// parameters are given, the entire table will be reset.
 			if (textParameter.isEmpty()) {
 				mColors.reset();
+                mSession.onColorsChanged();
 			} else {
 				int lastIndex = 0;
 				for (int charIndex = 0;; charIndex++) {
@@ -1885,6 +1888,7 @@ public final class TerminalEmulator {
 						try {
 							int colorToReset = Integer.parseInt(textParameter.substring(lastIndex, charIndex));
 							mColors.reset(colorToReset);
+                            mSession.onColorsChanged();
 							if (endOfInput) break;
 							charIndex++;
 							lastIndex = charIndex;
@@ -1899,6 +1903,7 @@ public final class TerminalEmulator {
 		case 111: // Reset background color.
 		case 112: // Reset cursor color.
 			mColors.reset(TextStyle.COLOR_INDEX_FOREGROUND + (value - 110));
+            mSession.onColorsChanged();
 			break;
 		case 119: // Reset highlight color.
 			break;
@@ -2273,6 +2278,7 @@ public final class TerminalEmulator {
 		mUtf8Index = mUtf8ToFollow = 0;
 
 		mColors.reset();
+        mSession.onColorsChanged();
 	}
 
 	public String getSelectedText(int x1, int y1, int x2, int y2) {

app/src/main/java/com/termux/terminal/TerminalOutput.java

@@ -23,4 +23,6 @@ public abstract class TerminalOutput {
 	/** Notify the terminal client that a bell character (ASCII 7, bell, BEL, \a, ^G)) has been received. */
 	public abstract void onBell();
 
+    public abstract void onColorsChanged();
+
 }

app/src/main/java/com/termux/terminal/TerminalSession.java

@@ -41,6 +41,9 @@ public final class TerminalSession extends TerminalOutput {
 		void onClipboardText(TerminalSession session, String text);
 
 		void onBell(TerminalSession session);
+
+        void onColorsChanged(TerminalSession session);
+
 	}
 
 	private static FileDescriptor wrapFileDescriptor(int fileDescriptor) {
@@ -329,4 +332,11 @@ public final class TerminalSession extends TerminalOutput {
 		mChangeCallback.onBell(this);
 	}
 
+    @Override
+    public void onColorsChanged() {
+        mChangeCallback.onColorsChanged(this);
+    }
+
+    public int getPid() { return mShellPid; }
+
 }