From ccf7d49067309e043185205047dbe7abd26535bf Mon Sep 17 00:00:00 2001 From: Christopher Lenz Date: Thu, 5 Jun 2008 21:13:05 +0000 Subject: Remove the Javascript shell from Futon due to unresolved licensing issues. git-svn-id: https://svn.apache.org/repos/asf/incubator/couchdb/trunk@663740 13f79535-47bb-0310-9956-ffa450edef68 --- share/www/script/shell.js | 722 ---------------------------------------------- 1 file changed, 722 deletions(-) delete mode 100644 share/www/script/shell.js (limited to 'share/www/script') diff --git a/share/www/script/shell.js b/share/www/script/shell.js deleted file mode 100644 index 4b512dc1..00000000 --- a/share/www/script/shell.js +++ /dev/null @@ -1,722 +0,0 @@ -// Licensed under the Apache License, Version 2.0 (the "License"); you may not -// use this file except in compliance with the License. You may obtain a copy -// of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT -// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the -// License for the specific language governing permissions and limitations under -// the License. - -var -histList = [""], -histPos = 0, -_scope = {}, -_win, // a top-level context -question, -_in, -_out, -tooManyMatches = null, -lastError = null; - -function refocus() -{ - _in.blur(); // Needed for Mozilla to scroll correctly. - _in.focus(); -} - -function init() -{ - _in = document.getElementById("input"); - _out = document.getElementById("output"); - - _win = window; - - if (opener && !opener.closed) - { - println("Using bookmarklet version of shell: commands will run in opener's context.", "message"); - _win = opener; - } - - initTarget(); - - recalculateInputHeight(); - refocus(); -} - -function initTarget() -{ - _win.Shell = window; - _win.print = shellCommands.print; -} - - -// Unless the user is selected something, refocus the textbox. -// (requested by caillon, brendan, asa) -function keepFocusInTextbox(e) -{ - var g = e.srcElement ? e.srcElement : e.target; // IE vs. standard - - while (!g.tagName) - g = g.parentNode; - var t = g.tagName.toUpperCase(); - if (t=="A" || t=="INPUT") - return; - - if (window.getSelection) { - // Mozilla - if (String(window.getSelection())) - return; - } - else if (document.getSelection) { - // Opera? Netscape 4? - if (document.getSelection()) - return; - } - else { - // IE - if ( document.selection.createRange().text ) - return; - } - - refocus(); -} - -function inputKeydown(e) { - // Use onkeydown because IE doesn't support onkeypress for arrow keys - - //alert(e.keyCode + " ^ " + e.keycode); - - if (e.shiftKey && e.keyCode == 13) { // shift-enter - // don't do anything; allow the shift-enter to insert a line break as normal - } else if (e.keyCode == 13) { // enter - // execute the input on enter - try { go(); } catch(er) { alert(er); }; - setTimeout(function() { _in.value = ""; }, 0); // can't preventDefault on input, so clear it later - } else if (e.keyCode == 38) { // up - // go up in history if at top or ctrl-up - if (e.ctrlKey || caretInFirstLine(_in)) - hist(true); - } else if (e.keyCode == 40) { // down - // go down in history if at end or ctrl-down - if (e.ctrlKey || caretInLastLine(_in)) - hist(false); - } else if (e.keyCode == 9) { // tab - tabcomplete(); - setTimeout(function() { refocus(); }, 0); // refocus because tab was hit - } else { } - - setTimeout(recalculateInputHeight, 0); - - //return true; -}; - -function caretInFirstLine(textbox) -{ - // IE doesn't support selectionStart/selectionEnd - if (textbox.selectionStart == undefined) - return true; - - var firstLineBreak = textbox.value.indexOf("\n"); - - return ((firstLineBreak == -1) || (textbox.selectionStart <= firstLineBreak)); -} - -function caretInLastLine(textbox) -{ - // IE doesn't support selectionStart/selectionEnd - if (textbox.selectionEnd == undefined) - return true; - - var lastLineBreak = textbox.value.lastIndexOf("\n"); - - return (textbox.selectionEnd > lastLineBreak); -} - -function recalculateInputHeight() -{ - var rows = _in.value.split(/\n/).length - + 1 // prevent scrollbar flickering in Mozilla - + (window.opera ? 1 : 0); // leave room for scrollbar in Opera - - if (_in.rows != rows) // without this check, it is impossible to select text in Opera 7.60 or Opera 8.0. - _in.rows = rows; -} - -function println(s, type) -{ - if((s=String(s))) - { - var newdiv = document.createElement("div"); - newdiv.appendChild(document.createTextNode(s)); - newdiv.className = type; - _out.appendChild(newdiv); - return newdiv; - } -} - -function printWithRunin(h, s, type) -{ - var div = println(s, type); - var head = document.createElement("strong"); - head.appendChild(document.createTextNode(h + ": ")); - div.insertBefore(head, div.firstChild); -} - - -var shellCommands = -{ -load : function load(url) -{ - var s = _win.document.createElement("script"); - s.type = "text/javascript"; - s.src = url; - _win.document.getElementsByTagName("head")[0].appendChild(s); - println("Loading " + url + "...", "message"); -}, - -clear : function clear() -{ - var CHILDREN_TO_PRESERVE = 3; - while (_out.childNodes[CHILDREN_TO_PRESERVE]) - _out.removeChild(_out.childNodes[CHILDREN_TO_PRESERVE]); -}, - -print : function print(s) { println(s, "print"); }, - -// the normal function, "print", shouldn't return a value -// (suggested by brendan; later noticed it was a problem when showing others) -pr : function pr(s) -{ - shellCommands.print(s); // need to specify shellCommands so it doesn't try window.print()! - return s; -}, - -props : function props(e, onePerLine) -{ - if (e === null) { - println("props called with null argument", "error"); - return; - } - - if (e === undefined) { - println("props called with undefined argument", "error"); - return; - } - - var ns = ["Methods", "Fields", "Unreachables"]; - var as = [[], [], []]; // array of (empty) arrays of arrays! - var p, j, i; // loop variables, several used multiple times - - var protoLevels = 0; - - for (p = e; p; p = p.__proto__) - { - for (i=0; i thing typed is now in "limbo" - // (last item in histList) and should be reachable by pressing - // down again. - - var L = histList.length; - - if (L == 1) - return; - - if (up) - { - if (histPos == L-1) - { - // Save this entry in case the user hits the down key. - histList[histPos] = _in.value; - } - - if (histPos > 0) - { - histPos--; - // Use a timeout to prevent up from moving cursor within new text - // Set to nothing first for the same reason - setTimeout( - function() { - _in.value = ''; - _in.value = histList[histPos]; - var caretPos = _in.value.length; - if (_in.setSelectionRange) - _in.setSelectionRange(caretPos, caretPos); - }, - 0 - ); - } - } - else // down - { - if (histPos < L-1) - { - histPos++; - _in.value = histList[histPos]; - } - else if (histPos == L-1) - { - // Already on the current entry: clear but save - if (_in.value) - { - histList[histPos] = _in.value; - ++histPos; - _in.value = ""; - } - } - } -} - -function tabcomplete() -{ - /* - * Working backwards from s[from], find the spot - * where this expression starts. It will scan - * until it hits a mismatched ( or a space, - * but it skips over quoted strings. - * If stopAtDot is true, stop at a '.' - */ - function findbeginning(s, from, stopAtDot) - { - /* - * Complicated function. - * - * Return true if s[i] == q BUT ONLY IF - * s[i-1] is not a backslash. - */ - function equalButNotEscaped(s,i,q) - { - if(s.charAt(i) != q) // not equal go no further - return false; - - if(i==0) // beginning of string - return true; - - if(s.charAt(i-1) == '\\') // escaped? - return false; - - return true; - } - - var nparens = 0; - var i; - for(i=from; i>=0; i--) - { - if(s.charAt(i) == ' ') - break; - - if(stopAtDot && s.charAt(i) == '.') - break; - - if(s.charAt(i) == ')') - nparens++; - else if(s.charAt(i) == '(') - nparens--; - - if(nparens < 0) - break; - - // skip quoted strings - if(s.charAt(i) == '\'' || s.charAt(i) == '\"') - { - //dump("skipping quoted chars: "); - var quot = s.charAt(i); - i--; - while(i >= 0 && !equalButNotEscaped(s,i,quot)) { - //dump(s.charAt(i)); - i--; - } - //dump("\n"); - } - } - return i; - } - - // XXX should be used more consistently (instead of using selectionStart/selectionEnd throughout code) - // XXX doesn't work in IE, even though it contains IE-specific code - function getcaretpos(inp) - { - if(inp.selectionEnd != null) - return inp.selectionEnd; - - if(inp.createTextRange) - { - var docrange = _win.Shell.document.selection.createRange(); - var inprange = inp.createTextRange(); - if (inprange.setEndPoint) - { - inprange.setEndPoint('EndToStart', docrange); - return inprange.text.length; - } - } - - return inp.value.length; // sucks, punt - } - - function setselectionto(inp,pos) - { - if(inp.selectionStart) { - inp.selectionStart = inp.selectionEnd = pos; - } - else if(inp.createTextRange) { - var docrange = _win.Shell.document.selection.createRange(); - var inprange = inp.createTextRange(); - inprange.move('character',pos); - inprange.select(); - } - else { // err... - /* - inp.select(); - if(_win.Shell.document.getSelection()) - _win.Shell.document.getSelection() = ""; - */ - } - } - // get position of cursor within the input box - var caret = getcaretpos(_in); - - if(caret) { - //dump("----\n"); - var dotpos, spacepos, complete, obj; - //dump("caret pos: " + caret + "\n"); - // see if there's a dot before here - dotpos = findbeginning(_in.value, caret-1, true); - //dump("dot pos: " + dotpos + "\n"); - if(dotpos == -1 || _in.value.charAt(dotpos) != '.') { - dotpos = caret; -//dump("changed dot pos: " + dotpos + "\n"); - } - - // look backwards for a non-variable-name character - spacepos = findbeginning(_in.value, dotpos-1, false); - //dump("space pos: " + spacepos + "\n"); - // get the object we're trying to complete on - if(spacepos == dotpos || spacepos+1 == dotpos || dotpos == caret) - { - // try completing function args - if(_in.value.charAt(dotpos) == '(' || - (_in.value.charAt(spacepos) == '(' && (spacepos+1) == dotpos)) - { - var fn,fname; - var from = (_in.value.charAt(dotpos) == '(') ? dotpos : spacepos; - spacepos = findbeginning(_in.value, from-1, false); - - fname = _in.value.substr(spacepos+1,from-(spacepos+1)); - //dump("fname: " + fname + "\n"); - try { - with(_win.Shell._scope) - with(_win) - with(Shell.shellCommands) - fn = eval(fname); - } - catch(er) { - //dump('fn is not a valid object\n'); - return; - } - if(fn == undefined) { - //dump('fn is undefined'); - return; - } - if(fn instanceof Function) - { - // Print function definition, including argument names, but not function body - if(!fn.toString().match(/function .+?\(\) +\{\n +\[native code\]\n\}/)) - println(fn.toString().match(/function .+?\(.*?\)/), "tabcomplete"); - } - - return; - } - else - obj = _win; - } - else - { - var objname = _in.value.substr(spacepos+1,dotpos-(spacepos+1)); - //dump("objname: |" + objname + "|\n"); - try { - with(_win.Shell._scope) - with(_win) - obj = eval(objname); - } - catch(er) { - printError(er); - return; - } - if(obj == undefined) { - // sometimes this is tabcomplete's fault, so don't print it :( - // e.g. completing from "print(document.getElements" - // println("Can't complete from null or undefined expression " + objname, "error"); - return; - } - } - //dump("obj: " + obj + "\n"); - // get the thing we're trying to complete - if(dotpos == caret) - { - if(spacepos+1 == dotpos || spacepos == dotpos) - { - // nothing to complete - //dump("nothing to complete\n"); - return; - } - - complete = _in.value.substr(spacepos+1,dotpos-(spacepos+1)); - } - else { - complete = _in.value.substr(dotpos+1,caret-(dotpos+1)); - } - //dump("complete: " + complete + "\n"); - // ok, now look at all the props/methods of this obj - // and find ones starting with 'complete' - var matches = []; - var bestmatch = null; - for(var a in obj) - { - //a = a.toString(); - //XXX: making it lowercase could help some cases, - // but screws up my general logic. - if(a.substr(0,complete.length) == complete) { - matches.push(a); - ////dump("match: " + a + "\n"); - // if no best match, this is the best match - if(bestmatch == null) - { - bestmatch = a; - } - else { - // the best match is the longest common string - function min(a,b){ return ((a 1 && (tooManyMatches == objAndComplete || matches.length <= 10)) { - - printWithRunin("Matches: ", matches.join(', '), "tabcomplete"); - tooManyMatches = null; - } - else if(matches.length > 10) - { - println(matches.length + " matches. Press tab again to see them all", "tabcomplete"); - tooManyMatches = objAndComplete; - } - else { - tooManyMatches = null; - } - if(bestmatch != "") - { - var sstart; - if(dotpos == caret) { - sstart = spacepos+1; - } - else { - sstart = dotpos+1; - } - _in.value = _in.value.substr(0, sstart) - + bestmatch - + _in.value.substr(caret); - setselectionto(_in,caret + (bestmatch.length - complete.length)); - } - } -} - -function printQuestion(q) -{ - println(q, "input"); -} - -function printAnswer(a) -{ - if (a !== undefined) { - println(a, "normalOutput"); - shellCommands.ans = a; - } -} - -function printError(er) -{ - var lineNumberString; - - lastError = er; // for debugging the shell - if (er.name) - { - // lineNumberString should not be "", to avoid a very wacky bug in IE 6. - lineNumberString = (er.lineNumber != undefined) ? (" on line " + er.lineNumber + ": ") : ": "; - println(er.name + lineNumberString + er.message, "error"); // Because IE doesn't have error.toString. - } - else - println(er, "error"); // Because security errors in Moz /only/ have toString. -} - -function go(s) -{ - _in.value = question = s ? s : _in.value; - - if (question == "") - return; - - histList[histList.length-1] = question; - histList[histList.length] = ""; - histPos = histList.length - 1; - - // Unfortunately, this has to happen *before* the JavaScript is run, so that - // print() output will go in the right place. - _in.value=''; - recalculateInputHeight(); - printQuestion(question); - - if (_win.closed) { - printError("Target window has been closed."); - return; - } - - try { ("Shell" in _win) } - catch(er) { - printError("The JavaScript Shell cannot access variables in the target window. The most likely reason is that the target window now has a different page loaded and that page has a different hostname than the original page."); - return; - } - - if (!("Shell" in _win)) - initTarget(); // silent - - // Evaluate Shell.question using _win's eval (this is why eval isn't in the |with|, IIRC). - _win.location.href = "javascript:try{ Shell.printAnswer(eval('with(Shell._scope) with(Shell.shellCommands) {' + Shell.question + String.fromCharCode(10) + '}')); } catch(er) { Shell.printError(er); }; setTimeout(Shell.refocus, 0); void 0"; -} - -function T(Bool) { - if(!Bool) { - throw "Error!"; - } -} - - -function makeDocs(start, end, templateDoc) { - var templateDocSrc = templateDoc ? templateDoc.toSource() : "{}" - var docs = [] - for(var i=start; i