bookmarklet.js

javascript:(function zzdbg_load(src) { if((window.zzdbg||{}).script) zzdbg.script.remove(); var s = document.createElement('script'); s.className = 'zzdbg'; s.textContent = src; document.body.appendChild(s); zzdbg.loader = zzdbg_load; zzdbg.script = s; })("(function zzdbg_main(){\n\nvar w = window;\nvar d = w.document;\nvar zzdbg = {};\nvar ui = d.createElement('div');\nvar hpos = 0;\nvar oldconsole = {};\nvar reqHandlers = {};\nvar resHandlers = [null];\n\nzzdbg.loader = null;\nzzdbg.script = null;\nzzdbg.history = [];\nzzdbg.editors = [];\nzzdbg.editor = null;\nzzdbg.filename = null;\n\nif(w.zzdbg) {\nzzdbg.loader = w.zzdbg.loader;\nzzdbg.script = w.zzdbg.script;\nzzdbg.script.textContent = '('+zzdbg_main.toString()+')()';\nw.zzdbg.script = null;\nzzdbg.history = w.zzdbg.history;\nzzdbg.editors = w.zzdbg.editors;\nzzdbg.editor = w.zzdbg.editor;\nw.zzdbg.editor = null;\nzzdbg.filename = w.zzdbg.filename;\nw.zzdbg.close();\n}\nw.zzdbg = zzdbg;\n\nzzdbg.close = function() {\nexchange(oldconsole, console);\nif(zzdbg.script) zzdbg.script.remove();\nui.remove();\nw.removeEventListener('message', messageListener);\nd.removeEventListener('fullscreenchange', fullscreenchange)\ndelete w.zzdbg;\n};\nzzdbg.ui = ui;\n\nui.className = 'zzdbgui';\nui.innerHTML = '<style>'+\n'.zzdbg, * { pointer-events:auto !important; }'+\n'.zzdbgui, .zzdbgui *, .zzeditor { font:3vw monospace !important; margin:0 !important; padding:0 !important; box-sizing:border-box !important; border-radius:0; background-color:white; color:black; }'+\n'.zzdbgui { position:fixed; left:0; bottom:0; width:100%; height:40%; z-index:100000000000; }'+\n'.zzdbgui textarea, .zzdbgui input, .zzeditor { border:0.3vw solid black !important; padding:0 1vw !important; outline:none; resize:none; }'+\n'.zzoutput { position:absolute; left:0; top:0; width:100%; height:calc(100% - 6vw); overflow-y:auto; white-space:pre-wrap; }'+\n'.zzbar { position:absolute; left:0; bottom:0; width:100%; height:6vw; }'+\n'.zzbar * { position:absolute; top:0; height:100%; }'+\n'.zzinput { left:0; width:calc(100% - 20vw) !important; }'+\n'.zzdnbtn, .zzupbtn { width:10vw; font-size:1em; text-align:center; }'+\n'.zzdnbtn { right:10vw; }'+\n'.zzupbtn { right:0vw; }'+\n'.zzsuggest { position:fixed; bottom:5vw; right:25vw; border:0.3vw solid black; overflow-x:hidden; overflow-y:auto; }'+\n'.zzsuggest[hidden] { display:none !important; }'+\n'.zzsuggest > * { padding:0.5vw 2vw !important; }'+\n'.zzeditor { width:100%; height:60%; }'+\n'</style>'+\n'<textarea class=\"zzoutput\" readonly=\"true\"></textarea>'+\n'<div class=\"zzbar\">'+\n'<textarea class=\"zzinput\"></textarea>'+\n'<input class=\"zzdnbtn\" type=\"button\" value=\"\">'+\n'<input class=\"zzupbtn\" type=\"button\" value=\"\">'+\n'</div>'+\n'<div class=\"zzsuggest\" hidden><\\div>';\n\nd.body.appendChild(ui);\nvar output = ui.querySelector('.zzoutput');\nvar input = ui.querySelector('.zzinput');\nvar upbtn = ui.querySelector('.zzupbtn');\nvar dnbtn = ui.querySelector('.zzdnbtn');\nvar suggest = ui.querySelector('.zzsuggest');\nzzdbg.output = output;\nzzdbg.input = input;\nzzdbg.upbtn = upbtn;\nzzdbg.dnbtn = dnbtn;\nzzdbg.suggest = suggest;\n\n\nzzdbg.lastError = undefined;\nzzdbg.do = function(cmd) {\nvar err, res;\nvar quiet = false;\nwriteToOutput(['> '+cmd], true);\n\ntry {\nif('.h' == cmd) {\nzzdbg.info(zzdbg.doc);\nquiet = true;\n} else if('.q' == cmd) return zzdbg.close();\nelse if(/^\\.o\\b/.test(cmd)) res = zzdbg.open(zzdbg.evalLocal('('+cmd.replace(/^\\.o\\s*/, '')+')'));\nelse if(/^\\.d\\b/.test(cmd)) res = docLookup(cmd.replace(/^\\.d\\s*/, ''));\nelse if('.e' == cmd) {\nselectElement();\nquiet = true;\n} else if('.a' == cmd) {\nzzdbg.applyChanges();\nquiet = true;\n} else if(/^\\.s\\b/.test(cmd)) {\nif(!zzdbg.editor) throw new Error('not in edit mode');\nzzdbg.filename = cmd.replace(/^\\.s\\s*|\\s*$/g, '') || zzdbg.filename;\nzzdbg.dl({ filename: zzdbg.filename || 'untitled.txt', url:'data:text/plain,'+encodeURI(zzdbg.editor.value) });\n} else res = zzdbg.evalLocal(cmd.replace(/^javascript:/, ''));\n} catch(e) { err = e; }\n\nif(!quiet) writeToOutput([err||res], false);\nif('.c' == cmd) output.value = '';\nzzdbg.history.push({ cmd:cmd, res:res, err:err });\nw._ = res;\nzzdbg.lastError = err;\n};\n\ninput.onkeydown = function(event) {\nvar cmd = input.value;\nhpos = 0;\nif('Enter' != event.key) return;\nevent.preventDefault();\nif('' == cmd) return;\ninput.value = '';\nzzdbg.do(cmd);\nsuggest.hidden = true;\n};\ninput.onkeyup = function(event){\nvar cmd = input.value;\nvar pos = input.selectionEnd;\nvar term = cmd.slice(0, pos).match(/([\\w$]+\\.)*[\\w$]*$/);\ntry {\nvar base = term[0].replace(/\\.?[\\w$]*$/, '') || 'window';\nvar part = term[0].replace(/^([\\w$]+\\.)*/, '');\nvar compare = new Intl.Collator('en').compare;\nvar props = term[0].length ? zzdbg.properties(zzdbg.evalLocal('('+base+')')) : [];\nprops = props.filter(function(prop){ return prop.startsWith(part) && prop != part; }).sort(compare);\n\nsuggest.innerHTML = '';\nfor(var i = 0; i < props.length; i++) {\nvar item = d.createElement('div');\nitem.textContent = props[i];\nsuggest.appendChild(item);\nitem.onclick = function() {\ninput.value = input.value.slice(0, pos)+this.textContent.slice(part.length)+input.value.slice(pos);\nsuggest.hidden = true;\ninput.focus();\ninput.selectionStart = input.selectionEnd = pos+(this.textContent.length-part.length);\n};\n}\nsuggest.hidden = !props.length;\nsuggest.style.width = suggest.scrollWidth+'px';\nsuggest.style.height = Math.min(suggest.scrollHeight, w.innerHeight*.75)+'px';\n} catch(e) { suggest.hidden = true; }\n};\n\n\ndnbtn.onclick = upbtn.onclick = function(event) {\ninput.focus();\nvar dir = 0;\nif(dnbtn == this) dir = -1;\nif(upbtn == this) dir = +1;\nif(0 == dir) return;\nhpos += dir;\nhpos = Math.min(hpos, zzdbg.history.length);\nif(hpos < 0) hpos = 0;\ninput.value = hpos ? zzdbg.history.slice(-hpos)[0].cmd : '';\ninput.selectionStart = input.selectionEnd = input.value.length;\n};\n\n\nzzdbg.stringify = null;\nzzdbg.stringifyDepth = 3;\nzzdbg.stringifyFull = function(x, depth, inlineStrings) {\nif(undefined === depth) throw new Error('stringify args');\n\nif(zzdbg.stringify) {\nx = zzdbg.stringify(x, depth, inlineStrings);\nif(isa(x, String)) return x;\n}\n\nif(depth >= zzdbg.stringifyDepth) return '…';\nif(depth >= 1 && 'function' == typeof x) return '[function …]';\n\nif(isa(x, Text)) {\nx = x.textContent.replace(/^\\s+|\\s+$/g, '');\nif(!x) return '\" \"';\n}\n\nif(isa(x, String)) {\nreturn inlineStrings && 0 == depth ? x : JSON.stringify(x);\n}\n\nif(0&&isa(x, Error)) return x+(0 == depth ? '\\n'+x.stack : '');\n\nif(arraylike(x)) {\nx = toArray(x);\nif(depth >= zzdbg.stringifyDepth-1) return '[ ('+x.length+' items) ]';\nreturn '[ '+x.map(function(y, i) { return i+': '+zzdbg.stringifyFull(y, depth+1, inlineStrings); }).join(', ')+' ]';\n}\n\nif(isa2(x, Window)) {\ntry { return '[Window '+zzdbg.stringifyFull(x.zzdbg_initialLocation||x.location.href, depth+1, inlineStrings)+']'; }\ncatch(e) { if(!isSecurityError(e)) throw e; return '[Cross-origin window for '+zzdbg.stringifyFull(zzdbg.frameElement(x), depth+1)+']'; }\n}\n\ntry {\nif(isa(x, CSSStyleSheet) || isa(x, CSSRuleList)) return '['+x.constructor.name+' with '+(x.cssRules||x).length+' rules]';\nif(isa(x, CSSRule)) return x.cssText;\nif(isa(x, CSSStyleDeclaration)) return '{ '+(x.cssText||toArray(x).filter(function(attr) { return x[attr]; }).map(function(attr) { return attr+': '+x[attr]; }).join('; '))+' }';\n} catch(e) {\nif(!isSecurityError(e)) throw e;\nif(x.href) return '['+x.constructor.name+' \"'+url_summary(x.href)+'\"]';\nreturn '[cross-origin '+x.constructor.name+']'\n}\n\nfunction url_summary(url) {\nreturn 0 == depth ? url : '…'+(urlBasename(url)||'');\n}\nif(isa(x, HTMLElement)) {\nvar attrs = toArray(x.attributes).filter(function(attr) { return 0 == depth || /^(id|class|href|src)$/i.test(attr.name); }).map(function(attr) { return zzdbg.stringifyFull(attr, depth, false); });\nif(attrs.length < x.attributes.length) attrs.push('…');\nreturn '<'+[x.tagName.toLowerCase()].concat(attrs).join(' ')+'>'+(0==depth ? ' '+zzdbg.stringifyFull(zzdbg.cssRules(x), depth, false) : '');\n}\nif(isa(x, Attr)) {\nif(/^(href|src|srcset|background|poster)$/i.test(x.name)) return x.name+'=\"'+url_summary(x.value)+'\"';\nreturn x.name+'=\"'+x.value+'\"';\n}\n\nvar str;\nif(null === x || undefined === x) str = String(x);\ntry { if(!str && x.__proto__ && 'function' == typeof x.__proto__.toString) str = String(x.__proto__.toString.call(x)); }\ncatch(e) { if(isSecurityError(e)) str = '[cross-origin object]' }\nif(!str) str = Object.prototype.toString.call(x);\n\nif(str && '[object Object]' != str) return str;\nreturn '{ '+Object.keys(x).map(function(key) { return key+': '+zzdbg.stringifyFull(x[key], depth+1, inlineStrings); }).join(', ')+' }';\n};\n\n\nfunction findprop(obj, prop, depth) {\nif(!depth) return null;\nif(!obj) return null;\nvar descriptors = Object.getOwnPropertyDescriptors(obj);\n\nfor(var name in descriptors) {\nif(obj === w && descriptors[name].enumerable) continue;\nvar val = descriptors[name].value;\nif('function' != typeof val) continue;\nif(prop.constructor === val && Function != val) return [name];\nif(val === prop) return [name];\nvar x = findprop(val.prototype, prop, depth-1) || findprop(val, prop, depth-1);\nif(x) return [name].concat(x);\n}\nreturn null;\n}\nfunction docLookup(str) {\nvar url = null;\ntry {\nvar path = null;\nif('' === str) return zzdbg.info('Usage: .d (expression or search terms)');\nif('null' == str || 'undefined' == str) path = [str];\nelse {\nvar x = zzdbg.evalLocal('('+str+')');\nif(null === x || undefined === x) throw new Error();\npath = findprop(w, x, 2);\n}\nif(!path || !path[0]) throw new Error();\n\nif('CSS2Properties' == path[0]) path[0] = 'CSSStyleDeclaration';\n\nif(/^encode|^Object$|^Array$|^Boolean$|^Number$|^BigInt$|^Math$|^Date$|^String$|^RegExp$|Error$|Function$/.test(path[0])) url = 'https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/'+path.join('/');\nelse if(/^CSS|^DOM|^File|^HTML|^Node|^NamedNode|^RTC|^XML|^Attr$|^ChildNode$|^Document$|^History$|^IDBFactory$|^URL$|^Window$|Event|Style|Element$|List$/.test(path[0])) url = 'https://developer.mozilla.org/en-US/docs/Web/API/'+path.join('/');\nelse url = 'https://developer.mozilla.org/en-US/search?q='+path.join('.');\n\n} catch(e) {\nurl = 'https://developer.mozilla.org/en-US/search?q='+encodeURIComponent(str);\n}\n\nreturn zzdbg.openWindow(url);\n}\n\nzzdbg.properties = function(obj) {\nvar descriptors = Object.getOwnPropertyDescriptors(obj);\nvar results = Object.keys(descriptors);\nvar proto = null;\ntry { proto = obj.__proto__; }\ncatch(e) {}\nif(proto) results =  results.concat(zzdbg.properties(proto));\nreturn results;\n};\n\n\nzzdbg.cancelSelect = null;\nzzdbg.selectElement = function(roots, callback) {\nroots = arraylike(roots) ? roots : roots ? [roots] : [w].concat(toArray(w));\nfor(var i = 0; i < roots.length; i++) try { roots[i].addEventListener('click', listener, true); } catch(e) { zzdbg.info('Unable to install handler', roots[i]); }\nif(zzdbg.cancelSelect) zzdbg.cancelSelect();\nzzdbg.cancelSelect = function() {\nfor(var i = 0; i < roots.length; i++) try { roots[i].removeEventListener('click', listener, true); } catch(e) {}\nzzdbg.cancelSelect = null;\n};\nfunction listener(event) {\nevent.preventDefault();\nevent.stopPropagation();\nzzdbg.cancelSelect();\nif(callback) callback(event.target);\n}\n};\nzzdbg.lastSelectedElement = null;\nfunction selectElement() {\nzzdbg.selectElement(null, function(elem) {\nzzdbg.selectElementAction(elem);\nvar h = zzdbg.history.slice(-1)[0];\nif(h && '.e' == h.cmd) { h.res = w._ = elem; }\nzzdbg.lastSelectedElement = elem;\n});\nzzdbg.info('(Waiting for click…)');\n}\n\n\nzzdbg.log = zzdbg.info = function zzdbg_log(...args) {\nwriteToOutput(args, true);\n};\nzzdbg.warn = specialLog('Warning:');\nzzdbg.error = specialLog('Error:');\nfunction specialLog(pfx) {\nreturn function zzdbg_log(...args) { writeToOutput([pfx].concat(args), true); };\n};\noldconsole.log = oldconsole.warn = oldconsole.info = oldconsole.error = zzdbg.log;\nexchange(oldconsole, console);\nfunction writeToOutput(array, inlineStrings) {\nif(output.value) output.value += '\\n';\ntry { output.value += array.map(function(arg) { return zzdbg.stringifyFull(arg, 0, inlineStrings); }).join(' '); }\ncatch(e) { output.value += e+' (zzdbg stringify)'; }\noutput.scrollTop = output.scrollHeight;\n}\nzzdbg.selectElementAction = zzdbg.log;\n\n\nzzdbg.cssRules = function(obj) {\nvar elems = isa(obj, String) ? document.querySelectorAll(obj) : arraylike(obj) ? obj : [obj];\nvar results = [];\nvar sheets = d.styleSheets;\nfor(var i = 0; i < sheets.length; i++) {\nvar rules;\ntry { rules = sheets[i].cssRules; }\ncatch(e) { results.push(sheets[i]); continue; }\nfor(var j = 0; j < rules.length; j++) {\nfor(var k = 0; k < elems.length; k++) {\ntry { if(elems[k].matches(rules[j].selectorText)) { results.push(rules[j]); break; } }\ncatch(e) { if(!isa(e, SyntaxError)) throw e+k; }\n}\n}\n}\nreturn results;\n};\n\n\nzzdbg.getURL = function(obj) {\nobj = zzdbg.frameElement(obj) || obj;\nvar url = parseURL(obj) || (obj.location||{}).href || obj.href || obj.src || ((obj.attributes||{}).background||{}).value;\nreturn url ? String(url) : null;\n};\nzzdbg.getURLs = function(objs) {\nreturn argsArray(arguments).map(zzdbg.getURL);\n};\nzzdbg.open = function(obj) {\nvar win = zzdbg.viewAsSource(obj);\nif(win) return win;\nvar url = zzdbg.getURL(obj);\nif(!url) return null;\nif(/^javascript:/.test(url)) return zzdbg.viewAsSource(url);\nreturn zzdbg.openWindow(url);\n};\nzzdbg.viewAsSource = function(obj, name) {\nvar target = obj, url, str;\nif(obj == zzdbg.loader) {\ntarget = 'loader.js';\nstr = obj.toString();\nname = name || target;\n} else if(isa(obj, HTMLScriptElement)) {\nif(obj == zzdbg.script) name = name || 'zzdbg.js';\nif(obj.src) { url = obj.src; name = name || urlBasename(obj.src) || 'untitled.js'; }\nelse { str = obj.textContent; name = name || 'inline-script.js'; }\n} else if(isa(obj, HTMLStyleElement)) {\nstr = obj.textContent;\n} else if(isa(obj, CSSStyleSheet)) {\nif(obj.href) url = obj.href;\nelse str = obj.ownerNode.textContent;\n} else if(isa(obj, HTMLLinkElement)) {\nurl = obj.href;\n} else if(isa(obj, String)) {\nvar parsed = parseURL(obj);\nif(!parsed) str = obj;\nelse if('javascript:' == parsed.protocol) {\nstr = obj;\nname = name || 'bookmarklet.js';\n} else if(/\\.(js|css|html)$/i.test(parsed.pathname)) url = obj;\ntarget = null;\n}\nreturn openEditor(target, url, str, name);\n};\nfunction findEditor(obj) {\nif(!obj) return;\nvar ed = zzdbg.editors;\nfor(var i = 0; i < ed.length; i++) {\nvar closedOrDead = true;\ntry { closedOrDead = ed[i].window.closed; } catch(e) {}\nif(closedOrDead) { ed.splice(i, 1); i--; continue; }\nif(ed[i].window === obj) return ed[i].target;\nif(ed[i].target === obj) return ed[i].window;\n}\n}\nfunction openEditor(target, url, str, name) {\nvar win = findEditor(target);\nif(win) return win.focus(), win;\nif(!url && !isa(str, String)) return null;\nvar title = 'zzdbg source view for '+(name||'untitled')+' ('+d.title+')';\nvar jsurl = 'javascript:'+JSON.stringify(title)+'; \"...\"';\nwin = zzdbg.openWindow(url || jsurl, 'editor');\nif(!win) throw new Error(\"couldn't create window\");\ntry { setupWin(); win.onload = setupWin; }\ncatch(e) { zzdbg.info('(To edit, run zzdbg again in the new window)'); }\nfunction setupWin() {\nif(!url) {\nwin.document.title = name || '';\nwin.document.body.innerHTML = '<pre></pre>';\nwin.document.querySelector('pre').textContent = str.replace(/^\\s+|\\s+$/g, '');\n}\nwin.zzdbg_filename = name;\nwin.location = zzdbg.bookmarklet();\n}\nzzdbg.editors.push({ window:win, target:target });\nreturn win;\n}\nzzdbg.applyChanges = function() {\nif(!zzdbg.editor) throw new Error('not in edit mode');\nvar src = zzdbg.editor.value;\nsendWindowRequest(w.opener, 'apply', { src:src }, function(res) { zzdbg.info('Apply changes:', res || 'success'); });\n};\nreqHandlers.apply = function(win, payload, sendRes) {\nvar target = findEditor(win);\nif(undefined === target) return sendRes('unknown target');\nvar src = payload.src;\nif(!isa(src, String)) return sendRes('not a string');\ntry {\nif(!target) {\nreturn sendRes('target does not support editing');\n} else if('loader.js' == target) {\nzzdbg.loader = zzdbg.evalLocal('('+src+')');\n} else if(isa(target, HTMLScriptElement)) {\nif(target.src) target['data-zzdbg-src'] = target.src;\ntarget.removeAttribute('src');\ntarget.textContent = '0';\ntarget.textContent = src;\nif(d.contains(target)) zzdbg.evalLocal(src);\n} else {\nzzdbg.log('apply to unsupported target', target);\nreturn sendRes('unsupported target');\n}\nsendRes(null);\n} catch(e) { sendRes(String(e)); }\n};\nzzdbg.openWindow = function(url, type) {\nif(isa(url, URL)) url = String(url);\nif(!isa(url, String)) throw new TypeError('expected string/URL');\nvar rnd = Math.random().toString(36).slice(2);\nvar win = w.open(url, 'zzdbg-'+(type||'window')+'-'+rnd);\ntry { if(win) win.zzdbg_initialLocation = url; }\ncatch(e) {}\nreturn win;\n};\nzzdbg.bookmarklet = function() {\nreturn 'javascript:('+zzdbg.loader.toString()+')('+JSON.stringify('('+zzdbg_main.toString()+')();')+')/*END*/';\n};\n\nzzdbg.wgetcmd = function(dls) {\nreturn argsArray(arguments).map(parseDL).map(dl => 'wget '+safe_shell_arg(dl.url||'TEST')+\" -O '\"+safe_filename(dl)+\"'\").join('; ');\n};\nfunction safe_shell_arg(shell_arg) {\nreturn \"'\"+shell_arg.replace(/\\'/g, \"\\\\'\")+\"'\";\n}\nfunction safe_filename(dl) {\nvar f = dl.filename || urlBasename(dl.url);\nreturn f.replace(/[^a-zA-Z0-9._ \\[\\]\\{\\}-]/g, '_');\n}\nzzdbg.dl = function(dls) {\ndls = argsArray(arguments).map(parseDL);\nvar a = d.createElement('a');\nui.appendChild(a);\na.target = '_blank';\nfor(var i = 0; i < dls.length; i++) {\na.download = dls[i].filename||'';\na.href = dls[i].url;\na.click();\n}\na.remove();\n};\nfunction parseDL(obj) {\nif(!obj) return null;\nif(isa(obj, String)) return { url:obj };\nif(obj.url) return obj;\nreturn { url:zzdbg.getURL(obj) };\n}\n\nzzdbg.curlcmd = function(obj) {\nif(isa(obj, HTMLFormElement)) {\nreturn 'curl '+toArray(obj).filter(elem => elem.name).map(elem => '--data-raw '+safe_shell_arg(elem.name)+'='+safe_shell_arg(elem.value||'')).join(' ')+' '+safe_shell_arg(String(new URL(obj.target, document.baseURI)));\n}\n};\n\n\nzzdbg.frameElement = function(win) {\nif(!isa(win, Window)) return null;\ntry { return win.frameElement; }\ncatch(e) { if(!isSecurityError(e)) throw e; }\nvar frames = d.querySelectorAll('frame, iframe');\nfor(var i = 0; i < frames.length; i++) if(frames[i].contentWindow == win) return frames[i];\nreturn null;\n};\n\nzzdbg.traceEvent = function(target, type, eclass) {\nvar e = new (eclass||MouseEvent)(type||'click', { view:w, bubbles:true, cancelable:true });\nObject.defineProperty(e, 'target', { get:function trace() { zzdbg.log(new Error().stack); return target; } });\ntarget.dispatchEvent(e);\n};\n\n\nfunction has(a, b) {\nreturn Object.prototype.hasOwnProperty.call(a, b);\n}\nfunction exchange(a, b) {\nfor(var p in a) if(has(a, p)) { var swap = a[p]; a[p] = b[p]; b[p] = swap; }\n}\nfunction toArray(x) {\nreturn Array.prototype.slice.call(x);\n}\nfunction isa(x, y) {\nif(Array == y) return Array.isArray(x);\nif(String == y && 'string' == typeof x) return true;\nreturn x instanceof y;\n}\nfunction isa2(x, y) {\nif(isa(x, y)) return true;\ntry { return x.constructor.name == y.name; }\ncatch(e) { return false; }\n}\nfunction arraylike(x) {\nreturn isa(x, Array) || isa(x, NodeList) || isa(x, NamedNodeMap) || isa(x, StyleSheetList) || isa(x, HTMLCollection) || isa(x, HTMLAllCollection);\n}\nfunction argsArray(arr) {\nvar x = arr[0];\nreturn toArray(arraylike(x) ? x : arr);\n}\nfunction escapeHTML(str) {\nvar x = d.createElement('div');\nx.textContent = str;\nreturn x.innerHTML;\n}\nfunction parseURL(str) {\nif(!isa(str, String)) return null;\ntry { return new URL(str, document.baseURI); }\ncatch(e) { return null; }\n}\nfunction urlBasename(str) {\nvar url = parseURL(str) || {};\nvar x = /([\\w%._-]*\\/?)$/.exec(url.pathname);\nreturn x && x[1];\n}\nfunction isSecurityError(e) {\nreturn 'SecurityError' == e.name;\n}\n\nzzdbg.log('zzdbg - type .h for help');\n\nfunction eval2(str) {\nvar n = zzdbg.evalItems.length;\nvar x = zzdbg.evalItems[n] = { err: new SyntaxError('eval2') };\nvar s = d.createElement('script');\nstr = str.replace(/(;|\\s)*$/, '');\nvar expr = /^\\s*\\{/.test(str) ? '{{{{{\\n'+str+'\\n}}}}}' : 'zzdbg.evalItems['+n+'].res = (((((\\n'+str+'\\n)))))';\ns.textContent =\n'try { '+expr+'; delete zzdbg.evalItems['+n+'].err; }'+\n'catch(e) { zzdbg.evalItems['+n+'].err = e; }';\nui.appendChild(s); s.remove();\ndelete zzdbg.evalItems[n];\nif(has(x, 'err')) throw x.err;\nreturn x.res;\n}\nzzdbg.evalItems = [];\nzzdbg.evalLocal = eval;\ntry { zzdbg.evalLocal('0'); }\ncatch(e) {\nzzdbg.evalLocal = eval2; zzdbg.warn('zzdbg is running without eval(). Please wrap statements in braces: { var x; }. Expressions can be run as normal: func(). ('+e+')');\n}\nzzdbg.eval = function(cmd, cb) {\nvar err = null, res = null;\ntry { res = zzdbg.evalLocal(cmd); }\ncatch(e) { err = e; }\nsetTimeout(function() { cb(err, res); }, 0);\n};\n\n\nfunction enterEditMode() {\nzzdbg.info('Editor mode: use .a to apply changes to main document');\nzzdbg.eval = function(src, cb) {\nsendWindowRequest(w.opener, 'eval', cmd, function(res) {});\n};\nif(!zzdbg.editor) {\nzzdbg.filename = w.zzdbg_filename || urlBasename(w.location.href) || 'untitled';\nzzdbg.editor = d.createElement('textarea');\nzzdbg.editor.className = 'zzeditor';\nd.title = 'zzdbg source view for '+zzdbg.filename;\nvar pre = d.querySelector('pre') || d.body.childNodes[0];\nzzdbg.editor.value = pre.textContent;\npre.replaceWith(zzdbg.editor);\n}\n}\nreqHandlers.eval = function(win, payload, sendRes) {};\nif(/^zzdbg-editor/.test(w.name)) enterEditMode();\n\n\nfunction sendWindowRequest(window, type, payload, cb) {\nvar id = resHandlers.length;\nresHandlers[id] = cb;\nwindow.postMessage({ zzdbg_msg:{ dir:'req', type:type, payload:payload, id:id } }, '*');\n}\nfunction messageListener(ev) {\nvar win = ev.source;\nvar msg = ev.data.zzdbg_msg;\nvar dir = msg.dir;\nvar type = msg.type;\nvar payload = msg.payload;\nvar id = msg.id;\nif('req' == dir && has(reqHandlers, type)) reqHandlers[type](win, payload, sendRes);\nif('res' == dir && id < resHandlers.length && 'function' == typeof resHandlers[id]) { resHandlers[id](payload); delete resHandlers[id]; }\nfunction sendRes(payload) {\nwin.postMessage({ zzdbg_msg:{ dir:'res', type:type, payload:payload, id:id } }, ev.origin);\n}\n}\nw.addEventListener('message', messageListener);\n\nfunction fullscreenchange() { zzdbg.ui.remove(); (d.fullscreenElement||d.body).appendChild(zzdbg.ui); }\nd.addEventListener('fullscreenchange', fullscreenchange);\n\nzzdbg.doc = 'Commands:'+\n'\\n.h - help'+\n'\\n.q - quit'+\n'\\n.c - clear output'+\n'\\n.o (expr) - open/view source'+\n'\\n.d (expr) - MDN doc'+\n'\\n.e - select element'+\n'\\n.a - apply changes to main document (editor mode)'+\n'\\n.s (filename) - save file (editor mode)'+\n'';\ninput.focus();\n})();")/*END*/