fgdata/gui/dialogs/nasal-console.xml

<?xml version="1.0"?>

<PropertyList>
	<x>-20</x>
	<y>-20</y>
	<name>nasal-console</name>
	<layout>vbox</layout>

	<group>
		<layout>hbox</layout>
		<empty><stretch>1</stretch></empty>

		<text>
			<label>Nasal Console</label>
		</text>

		<empty><stretch>1</stretch></empty>

		<button>
			<pref-width>16</pref-width>
			<pref-height>16</pref-height>
			<legend></legend>
			<keynum>27</keynum>
			<border>2</border>

			<binding>
				<command>dialog-close</command>
			</binding>
		</button>
	</group>

	<hrule/>

	<textbox>
		<name>editfield</name>
		<halign>fill</halign>
		<pref-width>450</pref-width>
		<pref-height>200</pref-height>
		<slider>20</slider>
		<editable>true</editable>
		<property>/sim/gui/dialogs/nasal-console/edit</property>
		<binding>
			<command>dialog-apply</command>
			<object-name>editfield</object-name>
		</binding>
	</textbox>

	<group>
		<layout>hbox</layout>
		<halign>fill</halign>
		<default-padding>4</default-padding>

		<button-template>
			<hide>1</hide>
			<halign>fill</halign>
			<pref-width>20</pref-width>
			<pref-height>20</pref-height>
			<one-shot>0</one-shot>
			<live>1</live>
			<legend>## 1 ##</legend>
			<property>## /sim/gui/dialogs/nasal-console/tab-down[1] ##</property>
			<binding>
				<command>dialog-apply</command>
				<object-name>editfield</object-name>
			</binding>
			<binding>
				<command>nasal</command>
				<script>## select(1) ##</script>
			</binding>
			<binding>
				<command>dialog-update</command>
				<object-name>editfield</object-name>
			</binding>
		</button-template>
	</group>

	<hrule/>

	<group>
		<layout>hbox</layout>
		<default-padding>4</default-padding>

		<button>
			<legend>?</legend>
			<pref-width>30</pref-width>
			<binding>
				<command>nasal</command>
				<script>help()</script>
			</binding>
			<binding>
				<command>dialog-update</command>
				<object-name>editfield</object-name>
			</binding>
		</button>

		<empty><stretch>1</stretch></empty>

		<button>
			<legend>Clear</legend>
			<key>Ctrl-c</key>
			<equal>true</equal>
			<binding>
				<command>nasal</command>
				<script>active and clear()</script>
			</binding>
			<binding>
				<command>dialog-update</command>
				<object-name>editfield</object-name>
			</binding>
		</button>

		<button>
			<legend>Print</legend>
			<key>Ctrl-p</key>
			<equal>true</equal>
			<binding>
				<command>dialog-apply</command>
				<object-name>editfield</object-name>
			</binding>
			<binding>
				<command>nasal</command>
				<script>active and dump()</script>
			</binding>
		</button>

		<button>
			<legend>Execute</legend>
			<default>true</default>
			<equal>true</equal>
			<binding>
				<command>dialog-apply</command>
				<object-name>editfield</object-name>
			</binding>
			<binding>
				<command>nasal</command>
				<script>active and execute()</script>
			</binding>
		</button>
	</group>

	<nasal>
		<open>
			var dlg = props.globals.getNode("/sim/gui/dialogs/nasal-console");
			var kbdctrl = props.globals.getNode("/devices/status/keyboard/ctrl", 1);
			var printf = func { print(call(sprintf, arg)) }
			var edit = dlg.getNode("edit", 1);
			if (!contains(globals, "__nasal_console_locals")) {
				globals["__nasal_console_locals"] = {};
			}
			var locals = globals["__nasal_console_locals"];
			var numtabs = size(dlg.getChildren("code"));
			if (!numtabs) {
				numtabs = 10;
			}

			var dump = func {
				rule = "--------------------------------------------------------------------------------";
				print(rule ~ "\n");
				print(edit.getValue());
				print(rule);
			}

			var clear = func {
				edit.setValue("");
			}

			var execute = func(what = nil) {
				var tag = "&lt;nasal-console>";
				var err = [];
				if (what == nil) {
					what = edit;
				}
				var f = call(func { compile(what.getValue(), tag) }, nil, nil, nil, err);
				if (size(err)) {
					print(tag ~ ": " ~ err[0]);
					return;
				}
				f = bind(f, globals);
				call(f, nil, nil, locals, err);
				if (size(err)) {
					printf("%s at %s line %d\n", err[0], err[1], err[2]);
					for (var i = 3; i &lt; size(err); i += 2) {
						printf("  called from %s line %d\n", err[i], err[i + 1]);
					}
				}
			}

			var tabs = cmdarg().getNode("group[1]");
			var select = func(which, init = 0) {
				if (active) { # false in help mode
					dlg.getNode("active").setIntValue(active);
					if (!init) {
						dlg.getChild("code", active).setValue(screen.trim(edit.getValue()));
					}
				}
				if (kbdctrl.getValue()) {
					execute(dlg.getChild("code", which));
					return;
				}
				active = which;
				foreach (var c; dlg.getChildren("tab-down")) {
					c.setBoolValue(c.getIndex() == active);
				}
				# animate tab buttons
				dlg.getNode("active").setIntValue(active = which);
				edit.setValue(dlg.getChild("code", active).getValue());
			}

			var help = func {
				active = 0;
				foreach (var c; dlg.getChildren("tab-down")) {
					c.setBoolValue(0);
				}
				edit.setValue("Keys:\n"
					~ "  tab ... leave edit mode (visible text cursor)\n"
					~ "  return ... execute active code\n"
					~ "  ctrl-c ... clear input field\n"
					~ "  ctrl-p ... print input field contents to terminal\n"
					~ "  escape ... close dialog\n\n"
					~ "Ctrl-click on tab buttons executes code without switching to the tab.\n"
					~ "Add more &lt;code> properties in ~/.fgfs/autosave.xml for more tab buttons.");
			}

			# setup tab buttons and properties from the template
			tabs.removeChildren("button");
			var template = tabs.getNode("button-template");
			var d = dlg.getPath();
			for (var i = 1; i &lt;= numtabs; i += 1) {
				var button = tabs.getChild("button", i, 1);
				var state = dlg.getChild("tab-down", i, 1);
				state.setBoolValue(0);

				props.copy(template, button);
				button.getNode("hide").setValue(0);
				button.getNode("legend").setIntValue(i);
				button.getNode("binding[1]/script").setValue("select(" ~ i ~ ")");
				button.getNode("property").setValue(state.getPath());
				var c = dlg.getChild("code", i);
				if (c == nil or c.getType() == "NONE") {
					c = dlg.getChild("code", i, 1);
					c.setValue("");
					c.setAttribute("userarchive", 1);
				}
			}

			edit.setValue("");
			var active = dlg.getNode("active", 1).getValue();
			if (active == nil) {
				active = 1;
			}
			select(active, 1);
		</open>
	</nasal>
</PropertyList>