search for files in a folder (rhino + swing gui)

search_files.js

// launcher:
//#!/bin/bash
//export CLASSPATH=$CLASSPATH:~/libs/js.jar:~/libs/swt.jar
//cd ~/bin/searchfiles/
//java org.mozilla.javascript.tools.shell.Main -version 170 search_files.js $@

importPackage(java.io);
importPackage(java.lang);
var swt = JavaImporter(
  org.eclipse.swt.SWT,
	org.eclipse.swt.layout.RowData,
	org.eclipse.swt.layout.RowLayout,
	org.eclipse.swt.layout.FillLayout,
	org.eclipse.swt.widgets.List,
	org.eclipse.swt.widgets.Button,
	org.eclipse.swt.widgets.Display,
	org.eclipse.swt.widgets.Label,
	org.eclipse.swt.widgets.Shell,
	org.eclipse.swt.widgets.Text
);

var	widgets = {}, defaults = {}, display, shell;

if (!arguments.length) {
	print("not enough parameters.");
	quit();
}

defaults.escQuits = false;
defaults.closeOnAction = false;
defaults.preFilter = /\.(js|html|php|css)$/;
defaults.path = arguments[0];
defaults.search = (arguments.length > 1) ? arguments[1] : "";

function run () { // {{{
	collectFiles();
	display = new swt.Display();
	shell = new swt.Shell(display, swt.SWT.CLOSE | swt.SWT.TITLE | swt.SWT.MIN);
	shell.setSize(780, 400);
	shell.setText("SWT Search: " + defaults.path);
	AddTextWidget();
	addListWidget();
	widgets.text.setText(defaults.search);
	widgets.text_keyListener({widget: widgets.text}, "keyReleased");
	shell.open();
	guiLoop();
} // }}}

function finalAction () { // {{{
	var isWin = (System.getProperty("os.name").indexOf("Windows") > -1),
		userName = System.getProperty("user.name"),
		cmd, sel = widgets.list.getSelection();
	sel = sel && sel.length ? sel[0] : null;
	if (!sel)
		return;
	sel = ("" + sel).replace(/^\.\.\. /, defaults.path);
	if (sel.indexOf(" ") > -1) {
		sel = '"' + sel + '"';
	}
	cmd = "jedit.jar -reuseview " + sel;
	if (isWin) {
		cmd = "java -jar C:/Users/" + userName + "/bin/jedit/" + cmd;
	} else {
		cmd = "java -jar /home/" + userName + "/bin/jedit/" + cmd;
	}
	Runtime.getRuntime().exec(cmd);
	if (defaults.closeOnAction) {
		quit();
	}
} // }}}

function listFiles(dir, comp) { // {{{
	var files = [], listFilesRec;
	if (typeof(dir) == "string") {
		dir = new File(dir);
	}
	if (!comp) {
		comp = function () { return true; };
	}
	(listFilesRec = function (directory) {
		entries = directory.listFiles();
		for each (entry in entries) {
			if (comp(entry)) {
				files.push(entry);
			}
			if (entry.isDirectory()) {
				files.concat(listFilesRec(entry));
			}
		}
	})(dir);
	return files;
} // }}}

function filesComp (entry) { // {{{
	var n = entry.getName();
	if (n.indexOf(".") === 0) {
		return false;
	}
	return defaults.preFilter.test(n);
} // }}}

function collectFiles () { // {{{
	timer = {start: new Date()};
	files = listFiles(defaults.path, filesComp);
	if (!files.length) {
		quit();
	}
	timer.end = (new Date - timer.start) / 1000;
	print("found " + files.length + " files. In " + timer.end + "s.");
} // }}}

function AddTextWidget () { // {{{
	widgets.text = new swt.Text(shell, swt.SWT.SINGLE | swt.SWT.BORDER);
	widgets.text.setBounds(5, 5, 764, 25);
	widgets.text_keyListener = function (e, method) {
		if (method != "keyReleased") {
			return;
		}
		// ctrl + r
		if (((e.stateMask & swt.SWT.CTRL) == swt.SWT.CTRL) && (e.keyCode == "r".charCodeAt(0))) {
			collectFiles();
		}
		// esc
		if (e.keyCode == swt.SWT.ESC && defaults.escQuits) {
			return quit();
		}
		// down
		if (e.keyCode == swt.SWT.ARROW_DOWN) {
			widgets.list.setFocus();
		}
		var s = e.widget.text, split, s1, s2,
			listables, filter,
			i = 0;
		if (widgets.text_prevText == s) {
			return;
		}
		// one can do a double search, with the ">" as separator
		split = s.split(">");
		s1 = split[0];
		s2 = split.length > 1 ? split[1] : "";
		filter = function(el){
			var sB = s, elB = el + "";
			if (sB.toLowerCase() == sB) { // case insensitive mode
				sB = sB.toLowerCase();
				elB = elB.toLowerCase();
			}
			return elB.indexOf(sB) !== -1;
		};
		if (s1) {
			s = s1;
			listables = files.filter(filter);
			if (s2) {
				s = s2;
				listables = listables.filter(filter);
			}
		}
		widgets.list.removeAll();
		for each (item in listables) {
			if ((++i) > 200) break;
			widgets.list.add((item + "").replace(defaults.path, "... "));
		}
		widgets.text_prevText = s;
	};
	widgets.text.addKeyListener(widgets.text_keyListener);
} // }}}

function addListWidget () { // {{{
	widgets.list = new swt.List(shell, swt.SWT.BORDER);
	widgets.list.setBounds(5, 35, 764, 331);
	widgets.list.addMouseListener(function (e, methodName) {
		if (methodName == "mouseDoubleClick")
			finalAction();
	});
	widgets.list.addKeyListener(function (e, methodName) {
		var sel;
		if (methodName != "keyReleased") {
			return;
		}
		if (e.keyCode == swt.SWT.ESC && defaults.escQuits) {
			return quit();
		}
		if (e.character == swt.SWT.CR) {
			finalAction();
		}
	});
} // }}}

function guiLoop () { // {{{
	while (!shell.isDisposed()) {
		if (!display.readAndDispatch()) {
			display.sleep();
		}
	}
	display.dispose();
}; // }}}

run();

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