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374 lines
11 KiB
HTML
374 lines
11 KiB
HTML
<!doctype html>
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<html lang="en-us">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<title>WebPerl Perl Editor</title>
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<!-- ##### WebPerl - http://webperl.zero-g.net #####
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Copyright (c) 2018 Hauke Daempfling (haukex@zero-g.net)
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at the Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB),
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Berlin, Germany, http://www.igb-berlin.de
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This program is free software; you can redistribute it and/or modify
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it under the same terms as Perl 5 itself: either the GNU General Public
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License as published by the Free Software Foundation (either version 1,
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or, at your option, any later version), or the "Artistic License" which
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comes with Perl 5.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the licenses for details.
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You should have received a copy of the licenses along with this program.
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If not, see http://perldoc.perl.org/index-licence.html
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##### -->
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<!--cacheable--><link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/normalize/8.0.0/normalize.min.css" integrity="sha256-oSrCnRYXvHG31SBifqP2PM1uje7SJUyX0nTwO2RJV54=" crossorigin="anonymous" />
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<!--cacheable--><link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.39.2/codemirror.min.css" integrity="sha256-I8NyGs4wjbMuBSUE40o55W6k6P7tu/7G28/JGUUYCIs=" crossorigin="anonymous" />
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<link rel="stylesheet" href="perleditor.css" />
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<!--cacheable--><script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.39.2/codemirror.min.js" integrity="sha256-uRIJ6Wfou5cTtmcCvQNA9lvsYl8sUbZXxnfG+P79ssY=" crossorigin="anonymous"></script>
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<!--cacheable--><script src="https://cdnjs.cloudflare.com/ajax/libs/codemirror/5.39.2/mode/perl/perl.min.js" integrity="sha256-Uu9QBfi8gU6J/MzQunal8ewmY+i/BbCkBrcAXA5bcCM=" crossorigin="anonymous"></script>
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<!--cacheable--><script src="https://code.jquery.com/jquery-3.3.1.min.js" integrity="sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8=" crossorigin="anonymous"></script>
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<script>
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"use strict";
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var mergeStdOutErr = 0; //TODO Later: make an options hash instead of individual variable(s)?
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var perlRunner; // the Perl runner iframe found by findPerlRunner()
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var buttonBlockers = {}; // for updateButtonState()
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var lastExitStatus; // for runnerState()
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function makeCM (textarea,plain,ro) {
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return CodeMirror.fromTextArea( textarea[0], {
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viewportMargin: Infinity, // so browser's search works, not good for long documents though
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lineNumbers:true, indentWithTabs:true,
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tabSize:4, indentUnit:4,
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mode: plain?"text/plain":"perl",
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readOnly: ro?true:false,
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} );
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}
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function runnerState (text) {
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$('#runnerstate').text( text
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+ (lastExitStatus ? ' (last exit status was '+lastExitStatus+')'
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: '') );
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}
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function updateButtonState () {
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$('#runperl').prop("disabled",
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Object.keys(buttonBlockers).length>0 );
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}
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function stdOutput (which, data) { // which: 1=stdout, 2=stderr
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if (mergeStdOutErr) which = 1;
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var div = $(which==1?'#stdout':'#stderr');
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div.show();
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var cm = div.data('CodeMirrorInstance');
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if (!cm) {
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cm = makeCM($('textarea',div),1,1);
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div.data('CodeMirrorInstance', cm);
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}
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if (data && data.length)
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cm.setValue( cm.getValue() + data );
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}
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function clearStdOutput () {
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$('#stdout,#stderr').each(function (i) {
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var div = $(this);
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var cm = div.data('CodeMirrorInstance');
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if (cm) cm.setValue('');
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div.hide();
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});
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}
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function findPerlRunner () {
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// assume calling this function means the runner isn't available
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buttonBlockers.runnerState = 1;
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updateButtonState();
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// poll for perlRunner, which gets set by the message listener
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var pollUntil = Date.now() + 10*1000; // milliseconds
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var pollId;
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pollId = window.setInterval( function () {
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if (perlRunner)
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window.clearInterval(pollId);
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else if ( Date.now()>pollUntil ) {
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if (window.confirm("Perl does not appear to have loaded yet, keep waiting?\n"
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+"(If you are on a slow connection, click OK to keep waiting.)"))
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pollUntil = Date.now() + 10*1000;
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else
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window.clearInterval(pollId);
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}
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else
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if (window.parent && window.parent.frames["perlrunner"])
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window.parent.frames["perlrunner"].postMessage(
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{perlRunnerDiscovery:1}, '*');
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}, 100);
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}
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window.addEventListener('message', function (event) {
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var data = event.data;
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if (data["perlRunnerState"]) {
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if ( data.perlRunnerState=="Ready" ) {
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perlRunner = event.source;
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delete buttonBlockers.runnerState;
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updateButtonState();
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}
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else if ( data.perlRunnerState=="Ended" ) {
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if ('exitStatus' in data)
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lastExitStatus = ''+data.exitStatus;
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// we know the runner will reload itself now
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perlRunner = null;
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findPerlRunner();
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}
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runnerState("Perl is "+data.perlRunnerState);
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}
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else if (data["perlOutput"])
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stdOutput(data.perlOutput.chan, data.perlOutput.data);
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else if (data["perlOutputFiles"]) {
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data.perlOutputFiles.forEach(function (outp) {
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setupOutputFile(outp.fn, outp.text);
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});
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}
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else if (data["perlRunnerError"]) {
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$('#runnererrors').show();
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$('#runnererrors>pre').append(data.perlRunnerError+"\n");
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}
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else console.warn("Perl Editor ignoring unknown message:",data);
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});
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function parseCmdLine(str) { //TODO: there's a better way to do this
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var re = /"((?:\\"|\\\\|[^"])*)"|'((?:\\'|\\\\|[^'])*)'|(\S+)/g;
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var argv = [];
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var match;
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while ((match = re.exec(str)) !== null) {
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if (typeof match[1] != 'undefined') argv.push(match[1].replace(/\\\\/g,"\\").replace(/\\"/g,"\""));
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else if (typeof match[2] != 'undefined') argv.push(match[2].replace(/\\\\/g,'\\').replace(/\\'/g,'\''));
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else if (typeof match[3] != 'undefined') argv.push(match[3]);
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}
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return argv;
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}
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function fetchUrl(url,cm) { // fetch the contents of a URL into a CodeMirror instance
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cm.setValue("Fetching URL\n"+url+"\nPlease wait...");
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buttonBlockers["fetchUrls"]++;
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updateButtonState();
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$.get(url, function (data) {
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cm.setValue(data);
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},'text').fail(function (jqXHR,textStatus,errorThrown) {
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cm.setValue("Fetching URL\n"+url+"\nFailed!\n"+textStatus+"\n"+errorThrown);
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}).always(function () {
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buttonBlockers.fetchUrls--;
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if (!buttonBlockers.fetchUrls)
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delete buttonBlockers.fetchUrls;
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updateButtonState();
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});
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}
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function makeCodeWithFn (fn,targ,ro,nodel) {
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var div = $('<div/>',{class:"codewithfn"});
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//TODO: the "delete" and "rename" functions should probably be styled better
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if (!nodel) {
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$('<div/>',{class:"fakelink",style:"float:right;",text:"delete"})
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.appendTo(div).click(function () {
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if (confirm("Are you sure you want to remove this file?"))
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div.remove() });
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}
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$('<div/>',{class:"filename",text:fn})
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.appendTo(div).click(function () {
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var filename = $(this);
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var newname = prompt("Please choose a new filename:", filename.text());
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if (newname) filename.text(newname);
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});
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div.append( $('<div/>',{style:"clear:both;"}) );
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var ta = $('<textarea/>').appendTo(div);
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targ.before(div);
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var cm = makeCM(ta, !fn.match(/\.pl$/i), ro);
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div.data('CodeMirrorInstance', cm);
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return {div:div,ta:ta,cm:cm};
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}
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function setupOutputFile (fn, text) {
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var found = $('div.outputs>.filename')
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.filter(function(){ return $(this).text() == fn });
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var cm;
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if (found.length) {
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var div = found.parent();
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cm = div.data('CodeMirrorInstance');
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}
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else {
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var cfn = makeCodeWithFn(fn, $('#outputhere'), 1);
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cfn.div.addClass("outputs");
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cm = cfn.cm;
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}
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cm.setValue( text ? text : '' );
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}
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function setupInputFile (inp) {
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var fn;
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if (inp["fn"]) fn = inp.fn;
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else { // autogenerate a filename
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for (var i=1; i<1000; i++) {
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var testfn = "input"+i+".txt";
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var found = $('div.inputs>.filename')
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.filter(function(){ return $(this).text() == testfn });
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if (!found.length) {
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fn = testfn;
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break }
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}
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if (!fn) {
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$('#runnererrors>pre').text('Too many input files');
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$('#runnererrors').show();
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throw 'Too many input files';
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}
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}
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var cfn = makeCodeWithFn(fn, $('#inputhere'), 0);
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cfn.div.addClass("inputs");
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if (inp["text"])
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cfn.cm.setValue(inp.text);
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else if (inp["url"])
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fetchUrl(inp.url, cfn.cm);
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}
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//TODO: implement a "get URL" feature
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function getFileData () {
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var filedata = {};
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// script
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var scriptdiv = $('#script');
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if (scriptdiv.is(':visible')) {
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filedata.script = scriptdiv.data('CodeMirrorInstance').getValue();
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filedata.script_fn = scriptdiv.find('>.filename').text();
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}
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// inputs
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$('.inputs').each(function () {
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var div = $(this);
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var fn = $('>.filename',div).text();
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var text = div.data('CodeMirrorInstance').getValue();
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if (!filedata["inputs"]) filedata.inputs = [];
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filedata.inputs.push( { fn:fn, text:text } );
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});
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// outputs
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$('.outputs').each(function () {
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var fn = $(this).find('>.filename').text();
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if (!filedata["outputs"]) filedata.outputs = [];
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filedata.outputs.push(fn);
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});
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return filedata;
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}
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$(function () {
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var hashdata = window.location.hash.substr(1);
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var hash = hashdata.length>0 ? JSON.parse(decodeURIComponent(hashdata)) : {};
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$('#addinput').click(function () {
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var fn = prompt("Please choose a filename for the new input file:");
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if (fn) setupInputFile( {fn:fn} );
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});
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$('#addoutput').click(function () {
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var fn = prompt("Please choose a filename for the new output file:");
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if (fn) setupOutputFile( fn );
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});
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// script
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if ( hash["script"] || hash["script_url"] ) {
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var fn = hash["script_fn"] ? hash.script_fn : 'script.pl';
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var cfn = makeCodeWithFn(fn, $('#perlctrl'), 0, 1);
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cfn.div.attr("id", "script");
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if (hash["script"])
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cfn.cm.setValue(hash.script);
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else if (hash["script_url"])
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fetchUrl(hash.script_url, cfn.cm);
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}
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// command line
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if (hash["cmdline"])
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$('#argv').val(hash.cmdline);
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// input files
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$('.inputs').remove();
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if ( hash["inputs"] ) hash.inputs.forEach(function(inp) {
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setupInputFile(inp);
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});
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// stdout/stderr
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if (hash["mergeStdOutErr"]) {
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mergeStdOutErr = 1;
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$('#stdout>.filename').text("STDOUT+STDERR");
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}
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else {
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mergeStdOutErr = 0;
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$('#stdout>.filename').text("STDOUT");
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}
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clearStdOutput();
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// output files
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$('.outputs').remove();
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if ( hash["outputs"] ) hash.outputs.forEach(function(outp) {
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setupOutputFile(outp);
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});
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$('#runperl').click( function () {
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clearStdOutput();
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// command-line args
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var argv = parseCmdLine($('#argv').val());
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if (argv.length<1 || argv[0]!="perl") {
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$('#runnererrors>pre').text('Invalid command line, command must be "perl"');
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$('#runnererrors').show();
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return;
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} // else
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argv.shift();
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$('#runnererrors>pre').text('');
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$('#runnererrors').hide();
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var rp_data = getFileData();
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rp_data.argv = argv;
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// send message to runner
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buttonBlockers.runnerState = 1;
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updateButtonState();
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lastExitStatus = null;
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runnerState("Requesting Perl Run...");
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perlRunner.postMessage({ runPerl: rp_data }, '*');
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});
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findPerlRunner();
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});
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</script>
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</head>
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<body>
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<div id="inputhere" style="text-align:right;">
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<span id="addinput" class="fakelink">Add Input File</span>
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</div>
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<div id="perlctrl">
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<button id="runperl"><code>perl</code> ►</button>
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<input type="text" id="argv" class="code" size="60" value='perl' />
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</div>
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<div id="runnerstate" class="text">
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Loading...
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</div>
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<div id="runnererrors" style="display:none;">
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<pre></pre>
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</div>
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<div id="stdout" class="codewithfn" style="display:none;">
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<div class="filename">STDOUT</div>
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<textarea></textarea>
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</div>
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<div id="stderr" class="codewithfn" style="display:none;">
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<div class="filename">STDERR</div>
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<textarea></textarea>
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</div>
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<div id="outputhere" style="text-align:right;">
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<span id="addoutput" class="fakelink">Add Output File</span>
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</div>
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</body>
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</html>
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