From 90169d6546d2b1a14a640cc685d15eaf73a957e0 Mon Sep 17 00:00:00 2001
From: Lisa Milne <lisamilne618@gmail.com>
Date: Thu, 9 Nov 2023 20:49:18 +1000
Subject: [PATCH] start of shell tabfill

---
 clite/core.js | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)

diff --git a/clite/core.js b/clite/core.js
index 9ba6308..3f882e1 100644
--- a/clite/core.js
+++ b/clite/core.js
@@ -9,6 +9,17 @@ var clite = {
 		}
 	},
 	events:{
+		keydown:function(e) {
+			return clite.events.keypress(e);
+		},
+		keypress:function(e) {
+			if (e.key == 'Tab') {
+				clite.shell.tabfill();
+				clite.events.refocus();
+				return false;
+			}
+			return true;
+		},
 		keyup:function(e) {
 			try {
 				if (e.key == 'Down' || e.key == 'ArrowDown') {
@@ -19,6 +30,9 @@ var clite = {
 					clite.shell.history.up();
 					return false;
 				}
+				if (e.key == 'Tab') {
+					return false;
+				}
 				var t = clite.state.input.field.value;
 				if (e.key != 'Enter') {
 					clite.shell.history.setCurrent(t);
@@ -720,6 +734,8 @@ clite.term = {
 		if (!t)
 			return;
 		t.appendChild(f);
+		i.onkeydown = clite.events.keydown;
+		i.onkeypress = clite.events.keypress;
 		i.onkeyup = clite.events.keyup;
 		i.onfocusout = clite.events.refocus;
 		i.onblur = clite.events.refocus;
@@ -923,6 +939,40 @@ clite.shell = {
 			clite.shell.exec(args,stdio);
 		}
 	},
+	tabfill:function() {
+		var c = clite.shell.history.getCurrent();
+		var parts = clite.lib.strToArgs(c);
+		var ai = parts.length-1;
+		if (ai < 0)
+			return;
+		var a = parts[ai];
+		var add = '';
+		if (ai == 0) {
+			// test for shell macros/builtins
+			Object.keys(clite.shell.macro).forEach(function(key) {
+				if (add == '' && key.substring(0,a.length) == a) {
+					add = key.substring(a.length);
+				}
+			});
+			if (add == '') {
+				// test for commands
+				// TODO: test all of PATH
+				var fd = clite.io.open('/bin');
+				var f;
+				while (add == '' && (f = clite.io.read(fd)) != null) {
+					if (f.name.substring(0,a.length) == a) {
+						add = f.name.substring(a.length);
+					}
+				}
+				clite.io.close(fd);
+			}
+		}else{
+			// TODO: path fill
+		}
+		if (add == '')
+			return;
+		clite.shell.history.setCurrent(c+add);
+	},
 	env:{
 		USER:'root',
 		PWD:'/',