static/panes/conformance-view.js - compiler-explorer - Rivoreo Source Code Repositories

 // Copyright (c) 2017, Rubén Rincón
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are met:
 //
 //     * Redistributions of source code must retain the above copyright notice,
 //       this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above copyright
 //       notice, this list of conditions and the following disclaimer in the
 //       documentation and/or other materials provided with the distribution.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 // POSSIBILITY OF SUCH DAMAGE.

 "use strict";

 var options = require('../options');
 var _ = require('underscore');
 var $ = require('jquery');
 var Promise = require('es6-promise').Promise;
 var ga = require('../analytics');
 var Components = require('../components');

 require('selectize');

 function Conformance(hub, container, state) {
     this.hub = hub;
     this.container = container;
     this.eventHub = hub.createEventHub();
     this.compilerService = hub.compilerService;
     this.domRoot = container.getElement();
     this.domRoot.html($('#conformance').html());
     this.editorId = state.editorid;
     this.maxCompilations = options.cvCompilerCountMax || 6;
     this.langId = state.langId || _.keys(options.languages)[0];
     this.source = state.source || "";
     this.sourceNeedsExpanding = true;
     this.expandedSource = null;

     this.status = {
         allowCompile: false,
         allowAdd: true
     };
     this.stateByLang = {};

     this.initButtons();
     this.initLibraries(state);
     this.updateLibsDropdown();
     this.initCallbacks();
     this.initFromState(state);
     this.handleToolbarUI();
     ga.proxy('send', {
         hitType: 'event',
         eventCategory: 'OpenViewPane',
         eventAction: 'Conformance'
     });

     // Dismiss the popover on escape.
     $(document).on('keyup.editable', _.bind(function (e) {
         if (e.which === 27) {
             this.libsButton.popover('hide');
         }
     }, this));

     // Dismiss on any click that isn't either in the opening element, inside
     // the popover or on any alert
     $(document).on('click', _.bind(function (e) {
         var elem = this.libsButton;
         var target = $(e.target);
         if (!target.is(elem) && elem.has(target).length === 0 && target.closest('.popover').length === 0) {
             elem.popover('hide');
         }
     }, this));
 }

 Conformance.prototype.initLibraries = function (state) {
     this.availableLibs = {};
     this.updateAvailableLibs();
     _.each(state.libs, _.bind(function (lib) {
         this.markLibraryAsUsed(lib.name, lib.ver);
     }, this));
 };

 Conformance.prototype.updateAvailableLibs = function () {
     if (!this.availableLibs[this.langId]) {
         this.availableLibs[this.langId] = $.extend(true, {}, options.libs[this.langId]);
         this.initLangDefaultLibs();
     }
 };

 Conformance.prototype.initLangDefaultLibs = function () {
     var defaultLibs = options.defaultLibs[this.langId];
     if (!defaultLibs) return;
     _.each(defaultLibs.split(':'), _.bind(function (libPair) {
         var pairSplits = libPair.split('.');
         if (pairSplits.length === 2) {
             var lib = pairSplits[0];
             var ver = pairSplits[1];
             this.markLibraryAsUsed(lib, ver);
         }
     }, this));
 };

 Conformance.prototype.updateLibsDropdown = function () {
     this.updateAvailableLibs();
     this.libsButton.popover({
         container: 'body',
         content: _.bind(function () {
             var libsCount = _.keys(this.availableLibs[this.langId]).length;
             if (libsCount === 0) return this.noLibsPanel;
             var columnCount = Math.ceil(libsCount / 5);
             var currentLibIndex = -1;

             var libLists = [];
             for (var i = 0; i < columnCount; i++) {
                 libLists.push($('<ul></ul>').addClass('lib-list'));
             }

             // Utility function so we can iterate indefinitely over our lists
             var getNextList = function () {
                 currentLibIndex = (currentLibIndex + 1) % columnCount;
                 return libLists[currentLibIndex];
             };

             var handleArrow = function (libGroup, libArrow) {
                 var anyInUse = _.any(libGroup.children().children('input'), function (element) {
                     return $(element).prop('checked');
                 });
                 var isVisible = libGroup.is(":visible");

                 libArrow.toggleClass('lib-arrow-up', isVisible);
                 libArrow.toggleClass('lib-arrow-down', !isVisible);
                 libArrow.toggleClass('lib-arrow-used', anyInUse);
             };

             var onChecked = _.bind(function (e) {
                 var elem = $(e.target);
                 // Uncheck every lib checkbox with the same name if we're checking the target
                 if (elem.prop('checked')) {
                     _.each(e.data.group.children().children('input'), function (other) {
                         $(other).prop('checked', false);
                     });
                     // Recheck the targeted one
                     elem.prop('checked', true);
                 }
                 // And now do the same with the availableLibs object
                 _.each(this.availableLibs[this.langId][elem.prop('data-lib')].versions, function (version) {
                     version.used = false;
                 });
                 this.availableLibs[this.langId][elem.prop('data-lib')]
                     .versions[elem.prop('data-version')].used = elem.prop('checked');

                 handleArrow(e.data.group, e.data.arrow);

                 this.saveState();
                 this.compileAll();
             }, this);

             _.each(this.availableLibs[this.langId], function (lib, libKey) {
                 var libsList = getNextList();
                 var libArrow = $('<div></div>').addClass('lib-arrow');
                 var libName = $('<span></span>').text(lib.name);
                 var libHeader = $('<span></span>')
                     .addClass('lib-header')
                     .append(libArrow)
                     .append(libName);
                 if (lib.url && lib.url.length > 0) {
                     libHeader.append($('<a></a>')
                         .css("float", "right")
                         .addClass('opens-new-window')
                         .prop('href', lib.url)
                         .prop('target', '_blank')
                         .prop('rel', 'noopener noreferrer')
                         .append($('<sup></sup>')
                             .addClass('glyphicon glyphicon-new-window')
                         )
                     );
                 }
                 if (lib.description && lib.description.length > 0) {
                     libName
                         .addClass('lib-described')
                         .prop('title', lib.description);
                 }
                 var libCat = $('<li></li>')
                     .append(libHeader)
                     .addClass('lib-item');

                 var libGroup = $('<div></div>');

                 if (libsList.children().length > 0)
                     libsList.append($('<hr>').addClass('lib-separator'));

                 _.each(lib.versions, function (version, vKey) {
                     var verCheckbox = $('<input type="checkbox">')
                         .addClass('lib-checkbox')
                         .prop('data-lib', libKey)
                         .prop('data-version', vKey)
                         .prop('checked', version.used)
                         .prop('name', libKey)
                         .on('change', {arrow: libArrow, group: libGroup}, onChecked);
                     libGroup
                         .append($('<div></div>')
                             .append(verCheckbox)
                             .append($('<label></label>')
                                 .addClass('lib-label')
                                 .text(version.version)
                                 .on('click', function () {
                                     verCheckbox.trigger('click');
                                 })
                             )
                         );
                 });

                 libGroup.hide();
                 handleArrow(libGroup, libArrow);

                 libHeader.on('click', function () {
                     libGroup.toggle();
                     handleArrow(libGroup, libArrow);
                 });

                 libGroup.appendTo(libCat);
                 libCat.appendTo(libsList);
             });
             return $('<div></div>').addClass('libs-container').append(libLists);
         }, this),
         html: true,
         placement: 'bottom',
         trigger: 'manual'
     }).click(_.bind(function () {
         this.libsButton.popover('show');
     }, this)).on('show.bs.popover', function () {
         $(this).data('bs.popover').tip().css('max-width', '100%').css('width', 'auto');
     });
 };

 Conformance.prototype.markLibraryAsUsed = function (name, version) {
     if (this.availableLibs[this.langId] &&
         this.availableLibs[this.langId][name] &&
         this.availableLibs[this.langId][name].versions[version]) {

         this.availableLibs[this.langId][name].versions[version].used = true;
     }
 };

 Conformance.prototype.initButtons = function () {
     this.selectorList = this.domRoot.find('.compiler-list');
     this.addCompilerButton = this.domRoot.find('.add-compiler');
     this.selectorTemplate = $('#compiler-selector').find('.compiler-row');
     this.topBar = this.domRoot.find('.top-bar');
     this.libsButton = this.topBar.find('.show-libs');
     this.libsTemplates = $('.template #libs-dropdown');
     this.noLibsPanel = this.libsTemplates.children('.no-libs');
     this.hideable = this.domRoot.find('.hideable');
 };

 Conformance.prototype.initCallbacks = function () {
     this.container.on('destroy', function () {
         this.eventHub.unsubscribe();
         this.eventHub.emit("conformanceViewClose", this.editorId);
     }, this);

     this.container.on('destroy', this.close, this);
     this.container.on('open', function () {
         this.eventHub.emit("conformanceViewOpen", this.editorId);
     }, this);

     this.container.on('resize', this.resize, this);
     this.container.on('shown', this.resize, this);
     this.eventHub.on('resize', this.resize, this);
     this.eventHub.on('editorChange', this.onEditorChange, this);
     this.eventHub.on('editorClose', this.onEditorClose, this);
     this.eventHub.on('languageChange', this.onLanguageChange, this);

     this.addCompilerButton.on('click', _.bind(function () {
         this.addCompilerSelector();
         this.saveState();
     }, this));
 };

 Conformance.prototype.setTitle = function (compilerCount) {
     this.container.setTitle("Conformance viewer (Editor #" + this.editorId + ") " + (
         compilerCount !== 0 ? (compilerCount + "/" + this.maxCompilations) : ""
     ));
 };

 Conformance.prototype.getGroupsInUse = function () {
     return _.chain(this.compilerService.getCompilersForLang(this.langId))
         .map()
         .uniq(false, function (compiler) {
             return compiler.group;
         })
         .map(function (compiler) {
             return {value: compiler.group, label: compiler.groupName || compiler.group};
         })
         .sortBy('label')
         .value();
 };

 Conformance.prototype.addCompilerSelector = function (config) {
     if (!config) {
         config = {
             // Compiler id which is being used
             compilerId: "",
             // Options which are in use
             options: ""
         };
     }

     var newEntry = this.selectorTemplate.clone();

     var onOptionsChange = _.debounce(_.bind(function () {
         this.saveState();
         this.compileChild(newEntry);
     }, this), 800);

     var optionsField = newEntry.find('.options')
         .val(config.options)
         .on("change", onOptionsChange)
         .on("keyup", onOptionsChange);

     newEntry.find('.close')
         .on("click", _.bind(function () {
             this.removeCompilerSelector(newEntry);
         }, this));

     this.selectorList.append(newEntry);

     var status = newEntry.find('.status');
     var prependOptions = newEntry.find('.prepend-options');
     var langId = this.langId;
     var isVisible = function (compiler) {
         return compiler.lang === langId;
     };

     var onCompilerChange = _.bind(function (compilerId) {
         // Hide the results icon when a new compiler is selected
         this.handleStatusIcon(status, {code: 0, text: ""});
         var compiler = this.compilerService.findCompiler(langId, compilerId);
         if (compiler) {
             prependOptions.prop('title', compiler.options);
             prependOptions.toggle(!!compiler.options);
         } else {
             prependOptions.hide();
         }
     }, this);

     var compilerPicker = newEntry.find('.compiler-picker')
         .selectize({
             sortField: [
                 {field: '$order'},
                 {field: 'name'}
             ],
             valueField: 'id',
             labelField: 'name',
             searchField: ['name'],
             optgroupField: 'group',
             optgroups: this.getGroupsInUse(),
             options: _.filter(options.compilers, isVisible),
             items: config.compilerId ? [config.compilerId] : []
         })
         .on('change', _.bind(function (e) {
             onCompilerChange($(e.target).val());
             this.compileChild(newEntry);
         }, this));
     onCompilerChange(config.compilerId);

     var popCompilerButton = $('<td></td>')
         .append($('<button></button>')
             .addClass('close glyphicon glyphicon-share-alt')
         );
     newEntry.append(popCompilerButton);
     var getCompilerConfig = _.bind(function () {
         return Components.getCompilerWith(
             this.editorId, undefined, optionsField.val(), compilerPicker.val(), this.langId, this.lastState.libs);
     }, this);

     this.container.layoutManager
         .createDragSource(popCompilerButton, getCompilerConfig);

     popCompilerButton.click(_.bind(function () {
         var insertPoint = this.hub.findParentRowOrColumn(this.container) ||
             this.container.layoutManager.root.contentItems[0];
         insertPoint.addChild(getCompilerConfig);
     }, this));

     this.handleToolbarUI();
     this.saveState();
 };

 Conformance.prototype.removeCompilerSelector = function (element) {
     if (element) element.remove();
     this.handleToolbarUI();
     this.saveState();
 };

 Conformance.prototype.expandSource = function () {
     if (this.sourceNeedsExpanding || !this.expandedSource) {
         return this.compilerService.expand(this.source).then(_.bind(function (expandedSource) {
             this.expandedSource = expandedSource;
             this.sourceNeedsExpanding = false;
             return expandedSource;
         }, this));
     }
     return Promise.resolve(this.expandedSource);
 };

 Conformance.prototype.onEditorChange = function (editorId, newSource, langId) {
     if (editorId === this.editorId) {
         this.langId = langId;
         this.source = newSource;
         this.sourceNeedsExpanding = true;
         this.compileAll();
     }
 };

 Conformance.prototype.onEditorClose = function (editorId) {
     if (editorId === this.editorId) {
         this.close();
         _.defer(function (self) {
             self.container.close();
         }, this);
     }
 };

 Conformance.prototype.onCompileResponse = function (child, result) {
     var allText = _.pluck((result.stdout || []).concat(result.stderr || []), 'text').join("\n");
     var failed = result.code !== 0;
     var warns = !failed && !!allText;
     var status = {
         text: allText.replace(/\x1b\\[[0-9;]*m/, ''),
         code: failed ? 3 : (warns ? 2 : 1)
     };

     child.find('.prepend-options')
         .toggle(!!result.compilationOptions)
         .prop('title', result.compilationOptions ? result.compilationOptions.join(' ') : '');

     this.handleStatusIcon(child.find('.status'), status);
     this.saveState();
 };

 Conformance.prototype.compileChild = function (child) {
     // Hide previous status icons
     var picker = child.find('.compiler-picker');

     if (!picker || !picker.val()) return;
     this.handleStatusIcon(child.find('.status'), {
         code: 4, // Compiling code
         text: "Compiling"
     });

     this.expandSource().then(_.bind(function (expandedSource) {
         var request = {
             source: expandedSource,
             compiler: picker.val(),
             options: {
                 userArguments: child.find(".options").val() || "",
                 filters: {},
                 compilerOptions: {produceAst: false, produceOptInfo: false}
             }
         };
         var compiler = this.compilerService.findCompiler(this.langId, picker.val());
         var includeFlag = compiler ? compiler.includeFlag : '-I';
         _.each(this.availableLibs[this.langId], function (lib) {
             _.each(lib.versions, function (version) {
                 if (version.used) {
                     _.each(version.path, function (path) {
                         request.options.userArguments += ' ' + includeFlag + path;
                     });
                 }
             });
         });
         // This error function ensures that the user will know we had a problem (As we don't save asm)
         this.compilerService.submit(request)
             .then(_.bind(function (x) {
                 this.onCompileResponse(child, x.result);
             }, this))
             .catch(_.bind(function (x) {
                 this.onCompileResponse(child, {
                     asm: "",
                     code: -1,
                     stdout: "",
                     stderr: x.error
                 });
             }, this));
     }, this));
 };

 Conformance.prototype.compileAll = function () {
     _.each(this.selectorList.children(), _.bind(function (child) {
         this.compileChild($(child));
     }, this));
 };

 Conformance.prototype.handleToolbarUI = function () {
     var compilerCount = this.selectorList.children().length;

     // Only allow new compilers if we allow for more
     this.addCompilerButton.prop("disabled", compilerCount >= this.maxCompilations);

     this.setTitle(compilerCount);
 };

 Conformance.prototype.handleStatusIcon = function (element, status) {
     if (!element) return;

     function ariaLabel(code) {
         if (code === 4) return "Compiling";
         if (code === 3) return "Compilation failed";
         if (code === 2) return "Compiled with warnings";
         return "Compiled without warnings";
     }

     function color(code) {
         if (code === 4) return "black";
         if (code === 3) return "red";
         if (code === 2) return "#BBBB00";
         return "green";
     }

     element
         .toggleClass('status', true)
         .css("color", color(status.code))
         .toggle(status.code !== 0)
         .prop("title", status.text)
         .prop("aria-label", ariaLabel(status.code))
         .prop("data-status", status.code);

     element.toggleClass('glyphicon-tasks', status.code === 4);
     element.toggleClass('glyphicon-remove-sign', status.code === 3);
     element.toggleClass('glyphicon-info-sign', status.code === 2);
     element.toggleClass('glyphicon-ok-sign', status.code === 1);
 };

 Conformance.prototype.currentState = function () {
     var libs = [];
     _.each(this.availableLibs[this.langId], function (library, name) {
         _.each(library.versions, function (version, ver) {
             if (library.versions[ver].used) {
                 libs.push({name: name, ver: ver});
             }
         });
     });
     var compilers = _.map(this.selectorList.children(), function (child) {
         child = $(child);
         return {
             compilerId: child.find('.compiler-picker').val() || "",
             options: child.find(".options").val() || ""
         };
     });
     return {
         editorid: this.editorId,
         langId: this.langId,
         compilers: compilers,
         libs: libs
     };
 };

 Conformance.prototype.saveState = function () {
     this.lastState = this.currentState();
     this.container.setState(this.lastState);
 };

 Conformance.prototype.resize = function () {
     this.updateHideables();
     this.selectorList.css("height", this.domRoot.height() - this.topBar.outerHeight(true));
 };

 Conformance.prototype.updateHideables = function () {
     this.hideable.toggle(this.domRoot.width() > this.addCompilerButton.width());
 };

 Conformance.prototype.onLanguageChange = function (editorId, newLangId) {
     if (editorId === this.editorId && this.langId !== newLangId) {
         var oldLangId = this.langId;
         this.stateByLang[oldLangId] = this.currentState();

         this.langId = newLangId;
         this.selectorList.children().remove();
         var langState = this.stateByLang[newLangId];
         this.initFromState(langState);
         this.updateLibsDropdown();
         this.handleToolbarUI();
         this.saveState();
     }
 };

 Conformance.prototype.close = function () {
     this.eventHub.unsubscribe();
     this.eventHub.emit("conformanceViewClose", this.editorId);
 };

 Conformance.prototype.initFromState = function (state) {
     if (state && state.compilers) {
         this.lastState = state;
         _.each(state.compilers, _.bind(this.addCompilerSelector, this));
     } else {
         this.lastState = this.currentState();
     }
 };
 module.exports = {
     Conformance: Conformance
 };
	// Copyright (c) 2017, Rubén Rincón
	// All rights reserved.
	//
	// Redistribution and use in source and binary forms, with or without
	// modification, are permitted provided that the following conditions are met:
	//
	// * Redistributions of source code must retain the above copyright notice,
	// this list of conditions and the following disclaimer.
	// * Redistributions in binary form must reproduce the above copyright
	// notice, this list of conditions and the following disclaimer in the
	// documentation and/or other materials provided with the distribution.
	//
	// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
	// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
	// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
	// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
	// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
	// POSSIBILITY OF SUCH DAMAGE.

	"use strict";

	var options = require('../options');
	var _ = require('underscore');
	var $ = require('jquery');
	var Promise = require('es6-promise').Promise;
	var ga = require('../analytics');
	var Components = require('../components');

	require('selectize');

	function Conformance(hub, container, state) {
	this.hub = hub;
	this.container = container;
	this.eventHub = hub.createEventHub();
	this.compilerService = hub.compilerService;
	this.domRoot = container.getElement();
	this.domRoot.html($('#conformance').html());
	this.editorId = state.editorid;
	this.maxCompilations = options.cvCompilerCountMax \|\| 6;
	this.langId = state.langId \|\| _.keys(options.languages)[0];
	this.source = state.source \|\| "";
	this.sourceNeedsExpanding = true;
	this.expandedSource = null;

	this.status = {
	allowCompile: false,
	allowAdd: true
	};
	this.stateByLang = {};

	this.initButtons();
	this.initLibraries(state);
	this.updateLibsDropdown();
	this.initCallbacks();
	this.initFromState(state);
	this.handleToolbarUI();
	ga.proxy('send', {
	hitType: 'event',
	eventCategory: 'OpenViewPane',
	eventAction: 'Conformance'
	});

	// Dismiss the popover on escape.
	$(document).on('keyup.editable', _.bind(function (e) {
	if (e.which === 27) {
	this.libsButton.popover('hide');
	}
	}, this));

	// Dismiss on any click that isn't either in the opening element, inside
	// the popover or on any alert
	$(document).on('click', _.bind(function (e) {
	var elem = this.libsButton;
	var target = $(e.target);
	if (!target.is(elem) && elem.has(target).length === 0 && target.closest('.popover').length === 0) {
	elem.popover('hide');
	}
	}, this));
	}

	Conformance.prototype.initLibraries = function (state) {
	this.availableLibs = {};
	this.updateAvailableLibs();
	_.each(state.libs, _.bind(function (lib) {
	this.markLibraryAsUsed(lib.name, lib.ver);
	}, this));
	};

	Conformance.prototype.updateAvailableLibs = function () {
	if (!this.availableLibs[this.langId]) {
	this.availableLibs[this.langId] = $.extend(true, {}, options.libs[this.langId]);
	this.initLangDefaultLibs();
	}
	};

	Conformance.prototype.initLangDefaultLibs = function () {
	var defaultLibs = options.defaultLibs[this.langId];
	if (!defaultLibs) return;
	_.each(defaultLibs.split(':'), _.bind(function (libPair) {
	var pairSplits = libPair.split('.');
	if (pairSplits.length === 2) {
	var lib = pairSplits[0];
	var ver = pairSplits[1];
	this.markLibraryAsUsed(lib, ver);
	}
	}, this));
	};

	Conformance.prototype.updateLibsDropdown = function () {
	this.updateAvailableLibs();
	this.libsButton.popover({
	container: 'body',
	content: _.bind(function () {
	var libsCount = _.keys(this.availableLibs[this.langId]).length;
	if (libsCount === 0) return this.noLibsPanel;
	var columnCount = Math.ceil(libsCount / 5);
	var currentLibIndex = -1;

	var libLists = [];
	for (var i = 0; i < columnCount; i++) {
	libLists.push($('<ul></ul>').addClass('lib-list'));
	}

	// Utility function so we can iterate indefinitely over our lists
	var getNextList = function () {
	currentLibIndex = (currentLibIndex + 1) % columnCount;
	return libLists[currentLibIndex];
	};

	var handleArrow = function (libGroup, libArrow) {
	var anyInUse = _.any(libGroup.children().children('input'), function (element) {
	return $(element).prop('checked');
	});
	var isVisible = libGroup.is(":visible");

	libArrow.toggleClass('lib-arrow-up', isVisible);
	libArrow.toggleClass('lib-arrow-down', !isVisible);
	libArrow.toggleClass('lib-arrow-used', anyInUse);
	};

	var onChecked = _.bind(function (e) {
	var elem = $(e.target);
	// Uncheck every lib checkbox with the same name if we're checking the target
	if (elem.prop('checked')) {
	_.each(e.data.group.children().children('input'), function (other) {
	$(other).prop('checked', false);
	});
	// Recheck the targeted one
	elem.prop('checked', true);
	}
	// And now do the same with the availableLibs object
	_.each(this.availableLibs[this.langId][elem.prop('data-lib')].versions, function (version) {
	version.used = false;
	});
	this.availableLibs[this.langId][elem.prop('data-lib')]
	.versions[elem.prop('data-version')].used = elem.prop('checked');

	handleArrow(e.data.group, e.data.arrow);

	this.saveState();
	this.compileAll();
	}, this);

	_.each(this.availableLibs[this.langId], function (lib, libKey) {
	var libsList = getNextList();
	var libArrow = $('<div></div>').addClass('lib-arrow');
	var libName = $('<span></span>').text(lib.name);
	var libHeader = $('<span></span>')
	.addClass('lib-header')
	.append(libArrow)
	.append(libName);
	if (lib.url && lib.url.length > 0) {
	libHeader.append($('<a></a>')
	.css("float", "right")
	.addClass('opens-new-window')
	.prop('href', lib.url)
	.prop('target', '_blank')
	.prop('rel', 'noopener noreferrer')
	.append($('<sup></sup>')
	.addClass('glyphicon glyphicon-new-window')
	)
	);
	}
	if (lib.description && lib.description.length > 0) {
	libName
	.addClass('lib-described')
	.prop('title', lib.description);
	}
	var libCat = $('<li></li>')
	.append(libHeader)
	.addClass('lib-item');

	var libGroup = $('<div></div>');

	if (libsList.children().length > 0)
	libsList.append($('<hr>').addClass('lib-separator'));

	_.each(lib.versions, function (version, vKey) {
	var verCheckbox = $('<input type="checkbox">')
	.addClass('lib-checkbox')
	.prop('data-lib', libKey)
	.prop('data-version', vKey)
	.prop('checked', version.used)
	.prop('name', libKey)
	.on('change', {arrow: libArrow, group: libGroup}, onChecked);
	libGroup
	.append($('<div></div>')
	.append(verCheckbox)
	.append($('<label></label>')
	.addClass('lib-label')
	.text(version.version)
	.on('click', function () {
	verCheckbox.trigger('click');
	})
	)
	);
	});

	libGroup.hide();
	handleArrow(libGroup, libArrow);

	libHeader.on('click', function () {
	libGroup.toggle();
	handleArrow(libGroup, libArrow);
	});

	libGroup.appendTo(libCat);
	libCat.appendTo(libsList);
	});
	return $('<div></div>').addClass('libs-container').append(libLists);
	}, this),
	html: true,
	placement: 'bottom',
	trigger: 'manual'
	}).click(_.bind(function () {
	this.libsButton.popover('show');
	}, this)).on('show.bs.popover', function () {
	$(this).data('bs.popover').tip().css('max-width', '100%').css('width', 'auto');
	});
	};

	Conformance.prototype.markLibraryAsUsed = function (name, version) {
	if (this.availableLibs[this.langId] &&
	this.availableLibs[this.langId][name] &&
	this.availableLibs[this.langId][name].versions[version]) {

	this.availableLibs[this.langId][name].versions[version].used = true;
	}
	};

	Conformance.prototype.initButtons = function () {
	this.selectorList = this.domRoot.find('.compiler-list');
	this.addCompilerButton = this.domRoot.find('.add-compiler');
	this.selectorTemplate = $('#compiler-selector').find('.compiler-row');
	this.topBar = this.domRoot.find('.top-bar');
	this.libsButton = this.topBar.find('.show-libs');
	this.libsTemplates = $('.template #libs-dropdown');
	this.noLibsPanel = this.libsTemplates.children('.no-libs');
	this.hideable = this.domRoot.find('.hideable');
	};

	Conformance.prototype.initCallbacks = function () {
	this.container.on('destroy', function () {
	this.eventHub.unsubscribe();
	this.eventHub.emit("conformanceViewClose", this.editorId);
	}, this);

	this.container.on('destroy', this.close, this);
	this.container.on('open', function () {
	this.eventHub.emit("conformanceViewOpen", this.editorId);
	}, this);

	this.container.on('resize', this.resize, this);
	this.container.on('shown', this.resize, this);
	this.eventHub.on('resize', this.resize, this);
	this.eventHub.on('editorChange', this.onEditorChange, this);
	this.eventHub.on('editorClose', this.onEditorClose, this);
	this.eventHub.on('languageChange', this.onLanguageChange, this);

	this.addCompilerButton.on('click', _.bind(function () {
	this.addCompilerSelector();
	this.saveState();
	}, this));
	};

	Conformance.prototype.setTitle = function (compilerCount) {
	this.container.setTitle("Conformance viewer (Editor #" + this.editorId + ") " + (
	compilerCount !== 0 ? (compilerCount + "/" + this.maxCompilations) : ""
	));
	};

	Conformance.prototype.getGroupsInUse = function () {
	return _.chain(this.compilerService.getCompilersForLang(this.langId))
	.map()
	.uniq(false, function (compiler) {
	return compiler.group;
	})
	.map(function (compiler) {
	return {value: compiler.group, label: compiler.groupName \|\| compiler.group};
	})
	.sortBy('label')
	.value();
	};

	Conformance.prototype.addCompilerSelector = function (config) {
	if (!config) {
	config = {
	// Compiler id which is being used
	compilerId: "",
	// Options which are in use
	options: ""
	};
	}

	var newEntry = this.selectorTemplate.clone();

	var onOptionsChange = _.debounce(_.bind(function () {
	this.saveState();
	this.compileChild(newEntry);
	}, this), 800);

	var optionsField = newEntry.find('.options')
	.val(config.options)
	.on("change", onOptionsChange)
	.on("keyup", onOptionsChange);

	newEntry.find('.close')
	.on("click", _.bind(function () {
	this.removeCompilerSelector(newEntry);
	}, this));

	this.selectorList.append(newEntry);

	var status = newEntry.find('.status');
	var prependOptions = newEntry.find('.prepend-options');
	var langId = this.langId;
	var isVisible = function (compiler) {
	return compiler.lang === langId;
	};

	var onCompilerChange = _.bind(function (compilerId) {
	// Hide the results icon when a new compiler is selected
	this.handleStatusIcon(status, {code: 0, text: ""});
	var compiler = this.compilerService.findCompiler(langId, compilerId);
	if (compiler) {
	prependOptions.prop('title', compiler.options);
	prependOptions.toggle(!!compiler.options);
	} else {
	prependOptions.hide();
	}
	}, this);

	var compilerPicker = newEntry.find('.compiler-picker')
	.selectize({
	sortField: [
	{field: '$order'},
	{field: 'name'}
	],
	valueField: 'id',
	labelField: 'name',
	searchField: ['name'],
	optgroupField: 'group',
	optgroups: this.getGroupsInUse(),
	options: _.filter(options.compilers, isVisible),
	items: config.compilerId ? [config.compilerId] : []
	})
	.on('change', _.bind(function (e) {
	onCompilerChange($(e.target).val());
	this.compileChild(newEntry);
	}, this));
	onCompilerChange(config.compilerId);

	var popCompilerButton = $('<td></td>')
	.append($('<button></button>')
	.addClass('close glyphicon glyphicon-share-alt')
	);
	newEntry.append(popCompilerButton);
	var getCompilerConfig = _.bind(function () {
	return Components.getCompilerWith(
	this.editorId, undefined, optionsField.val(), compilerPicker.val(), this.langId, this.lastState.libs);
	}, this);

	this.container.layoutManager
	.createDragSource(popCompilerButton, getCompilerConfig);

	popCompilerButton.click(_.bind(function () {
	var insertPoint = this.hub.findParentRowOrColumn(this.container) \|\|
	this.container.layoutManager.root.contentItems[0];
	insertPoint.addChild(getCompilerConfig);
	}, this));

	this.handleToolbarUI();
	this.saveState();
	};

	Conformance.prototype.removeCompilerSelector = function (element) {
	if (element) element.remove();
	this.handleToolbarUI();
	this.saveState();
	};

	Conformance.prototype.expandSource = function () {
	if (this.sourceNeedsExpanding \|\| !this.expandedSource) {
	return this.compilerService.expand(this.source).then(_.bind(function (expandedSource) {
	this.expandedSource = expandedSource;
	this.sourceNeedsExpanding = false;
	return expandedSource;
	}, this));
	}
	return Promise.resolve(this.expandedSource);
	};

	Conformance.prototype.onEditorChange = function (editorId, newSource, langId) {
	if (editorId === this.editorId) {
	this.langId = langId;
	this.source = newSource;
	this.sourceNeedsExpanding = true;
	this.compileAll();
	}
	};

	Conformance.prototype.onEditorClose = function (editorId) {
	if (editorId === this.editorId) {
	this.close();
	_.defer(function (self) {
	self.container.close();
	}, this);
	}
	};

	Conformance.prototype.onCompileResponse = function (child, result) {
	var allText = _.pluck((result.stdout \|\| []).concat(result.stderr \|\| []), 'text').join("\n");
	var failed = result.code !== 0;
	var warns = !failed && !!allText;
	var status = {
	text: allText.replace(/\x1b\\[[0-9;]*m/, ''),
	code: failed ? 3 : (warns ? 2 : 1)
	};

	child.find('.prepend-options')
	.toggle(!!result.compilationOptions)
	.prop('title', result.compilationOptions ? result.compilationOptions.join(' ') : '');

	this.handleStatusIcon(child.find('.status'), status);
	this.saveState();
	};

	Conformance.prototype.compileChild = function (child) {
	// Hide previous status icons
	var picker = child.find('.compiler-picker');

	if (!picker \|\| !picker.val()) return;
	this.handleStatusIcon(child.find('.status'), {
	code: 4, // Compiling code
	text: "Compiling"
	});

	this.expandSource().then(_.bind(function (expandedSource) {
	var request = {
	source: expandedSource,
	compiler: picker.val(),
	options: {
	userArguments: child.find(".options").val() \|\| "",
	filters: {},
	compilerOptions: {produceAst: false, produceOptInfo: false}
	}
	};
	var compiler = this.compilerService.findCompiler(this.langId, picker.val());
	var includeFlag = compiler ? compiler.includeFlag : '-I';
	_.each(this.availableLibs[this.langId], function (lib) {
	_.each(lib.versions, function (version) {
	if (version.used) {
	_.each(version.path, function (path) {
	request.options.userArguments += ' ' + includeFlag + path;
	});
	}
	});
	});
	// This error function ensures that the user will know we had a problem (As we don't save asm)
	this.compilerService.submit(request)
	.then(_.bind(function (x) {
	this.onCompileResponse(child, x.result);
	}, this))
	.catch(_.bind(function (x) {
	this.onCompileResponse(child, {
	asm: "",
	code: -1,
	stdout: "",
	stderr: x.error
	});
	}, this));
	}, this));
	};

	Conformance.prototype.compileAll = function () {
	_.each(this.selectorList.children(), _.bind(function (child) {
	this.compileChild($(child));
	}, this));
	};

	Conformance.prototype.handleToolbarUI = function () {
	var compilerCount = this.selectorList.children().length;

	// Only allow new compilers if we allow for more
	this.addCompilerButton.prop("disabled", compilerCount >= this.maxCompilations);

	this.setTitle(compilerCount);
	};

	Conformance.prototype.handleStatusIcon = function (element, status) {
	if (!element) return;

	function ariaLabel(code) {
	if (code === 4) return "Compiling";
	if (code === 3) return "Compilation failed";
	if (code === 2) return "Compiled with warnings";
	return "Compiled without warnings";
	}

	function color(code) {
	if (code === 4) return "black";
	if (code === 3) return "red";
	if (code === 2) return "#BBBB00";
	return "green";
	}

	element
	.toggleClass('status', true)
	.css("color", color(status.code))
	.toggle(status.code !== 0)
	.prop("title", status.text)
	.prop("aria-label", ariaLabel(status.code))
	.prop("data-status", status.code);

	element.toggleClass('glyphicon-tasks', status.code === 4);
	element.toggleClass('glyphicon-remove-sign', status.code === 3);
	element.toggleClass('glyphicon-info-sign', status.code === 2);
	element.toggleClass('glyphicon-ok-sign', status.code === 1);
	};

	Conformance.prototype.currentState = function () {
	var libs = [];
	_.each(this.availableLibs[this.langId], function (library, name) {
	_.each(library.versions, function (version, ver) {
	if (library.versions[ver].used) {
	libs.push({name: name, ver: ver});
	}
	});
	});
	var compilers = _.map(this.selectorList.children(), function (child) {
	child = $(child);
	return {
	compilerId: child.find('.compiler-picker').val() \|\| "",
	options: child.find(".options").val() \|\| ""
	};
	});
	return {
	editorid: this.editorId,
	langId: this.langId,
	compilers: compilers,
	libs: libs
	};
	};

	Conformance.prototype.saveState = function () {
	this.lastState = this.currentState();
	this.container.setState(this.lastState);
	};

	Conformance.prototype.resize = function () {
	this.updateHideables();
	this.selectorList.css("height", this.domRoot.height() - this.topBar.outerHeight(true));
	};

	Conformance.prototype.updateHideables = function () {
	this.hideable.toggle(this.domRoot.width() > this.addCompilerButton.width());
	};

	Conformance.prototype.onLanguageChange = function (editorId, newLangId) {
	if (editorId === this.editorId && this.langId !== newLangId) {
	var oldLangId = this.langId;
	this.stateByLang[oldLangId] = this.currentState();

	this.langId = newLangId;
	this.selectorList.children().remove();
	var langState = this.stateByLang[newLangId];
	this.initFromState(langState);
	this.updateLibsDropdown();
	this.handleToolbarUI();
	this.saveState();
	}
	};

	Conformance.prototype.close = function () {
	this.eventHub.unsubscribe();
	this.eventHub.emit("conformanceViewClose", this.editorId);
	};

	Conformance.prototype.initFromState = function (state) {
	if (state && state.compilers) {
	this.lastState = state;
	_.each(state.compilers, _.bind(this.addCompilerSelector, this));
	} else {
	this.lastState = this.currentState();
	}
	};
	module.exports = {
	Conformance: Conformance
	};