diff options
Diffstat (limited to 'trunk/etherpad/src/etherpad/collab/ace/contentcollector.js')
| -rw-r--r-- | trunk/etherpad/src/etherpad/collab/ace/contentcollector.js | 527 |
1 files changed, 0 insertions, 527 deletions
diff --git a/trunk/etherpad/src/etherpad/collab/ace/contentcollector.js b/trunk/etherpad/src/etherpad/collab/ace/contentcollector.js deleted file mode 100644 index 5dd4f9c..0000000 --- a/trunk/etherpad/src/etherpad/collab/ace/contentcollector.js +++ /dev/null @@ -1,527 +0,0 @@ -// DO NOT EDIT THIS FILE, edit infrastructure/ace/www/contentcollector.js -import("etherpad.collab.ace.easysync2.Changeset") - -/** - * Copyright 2009 Google Inc. - * - * 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 _MAX_LIST_LEVEL = 8; - -function sanitizeUnicode(s) { - return s.replace(/[\uffff\ufffe\ufeff\ufdd0-\ufdef\ud800-\udfff]/g, '?'); -} - -function makeContentCollector(collectStyles, browser, apool, domInterface, - className2Author) { - browser = browser || {}; - - var dom = domInterface || { - isNodeText: function(n) { - return (n.nodeType == 3); - }, - nodeTagName: function(n) { - return n.tagName; - }, - nodeValue: function(n) { - return n.nodeValue; - }, - nodeNumChildren: function(n) { - return n.childNodes.length; - }, - nodeChild: function(n, i) { - return n.childNodes.item(i); - }, - nodeProp: function(n, p) { - return n[p]; - }, - nodeAttr: function(n, a) { - return n.getAttribute(a); - }, - optNodeInnerHTML: function(n) { - return n.innerHTML; - } - }; - - var _blockElems = { "div":1, "p":1, "pre":1, "li":1 }; - function isBlockElement(n) { - return !!_blockElems[(dom.nodeTagName(n) || "").toLowerCase()]; - } - function textify(str) { - return sanitizeUnicode( - str.replace(/[\n\r ]/g, ' ').replace(/\xa0/g, ' ').replace(/\t/g, ' ')); - } - function getAssoc(node, name) { - return dom.nodeProp(node, "_magicdom_"+name); - } - - var lines = (function() { - var textArray = []; - var attribsArray = []; - var attribsBuilder = null; - var op = Changeset.newOp('+'); - var self = { - length: function() { return textArray.length; }, - atColumnZero: function() { - return textArray[textArray.length-1] === ""; - }, - startNew: function() { - textArray.push(""); - self.flush(true); - attribsBuilder = Changeset.smartOpAssembler(); - }, - textOfLine: function(i) { return textArray[i]; }, - appendText: function(txt, attrString) { - textArray[textArray.length-1] += txt; - //dmesg(txt+" / "+attrString); - op.attribs = attrString; - op.chars = txt.length; - attribsBuilder.append(op); - }, - textLines: function() { return textArray.slice(); }, - attribLines: function() { return attribsArray; }, - // call flush only when you're done - flush: function(withNewline) { - if (attribsBuilder) { - attribsArray.push(attribsBuilder.toString()); - attribsBuilder = null; - } - } - }; - self.startNew(); - return self; - }()); - var cc = {}; - function _ensureColumnZero(state) { - if (! lines.atColumnZero()) { - _startNewLine(state); - } - } - var selection, startPoint, endPoint; - var selStart = [-1,-1], selEnd = [-1,-1]; - var blockElems = { "div":1, "p":1, "pre":1 }; - function _isEmpty(node, state) { - // consider clean blank lines pasted in IE to be empty - if (dom.nodeNumChildren(node) == 0) return true; - if (dom.nodeNumChildren(node) == 1 && - getAssoc(node, "shouldBeEmpty") && dom.optNodeInnerHTML(node) == " " - && ! getAssoc(node, "unpasted")) { - if (state) { - var child = dom.nodeChild(node, 0); - _reachPoint(child, 0, state); - _reachPoint(child, 1, state); - } - return true; - } - return false; - } - function _pointHere(charsAfter, state) { - var ln = lines.length()-1; - var chr = lines.textOfLine(ln).length; - if (chr == 0 && state.listType && state.listType != 'none') { - chr += 1; // listMarker - } - chr += charsAfter; - return [ln, chr]; - } - function _reachBlockPoint(nd, idx, state) { - if (! dom.isNodeText(nd)) _reachPoint(nd, idx, state); - } - function _reachPoint(nd, idx, state) { - if (startPoint && nd == startPoint.node && startPoint.index == idx) { - selStart = _pointHere(0, state); - } - if (endPoint && nd == endPoint.node && endPoint.index == idx) { - selEnd = _pointHere(0, state); - } - } - function _incrementFlag(state, flagName) { - state.flags[flagName] = (state.flags[flagName] || 0)+1; - } - function _decrementFlag(state, flagName) { - state.flags[flagName]--; - } - function _incrementAttrib(state, attribName) { - if (! state.attribs[attribName]) { - state.attribs[attribName] = 1; - } - else { - state.attribs[attribName]++; - } - _recalcAttribString(state); - } - function _decrementAttrib(state, attribName) { - state.attribs[attribName]--; - _recalcAttribString(state); - } - function _enterList(state, listType) { - var oldListType = state.listType; - state.listLevel = (state.listLevel || 0)+1; - if (listType != 'none') { - state.listNesting = (state.listNesting || 0)+1; - } - state.listType = listType; - _recalcAttribString(state); - return oldListType; - } - function _exitList(state, oldListType) { - state.listLevel--; - if (state.listType != 'none') { - state.listNesting--; - } - state.listType = oldListType; - _recalcAttribString(state); - } - function _enterAuthor(state, author) { - var oldAuthor = state.author; - state.authorLevel = (state.authorLevel || 0)+1; - state.author = author; - _recalcAttribString(state); - return oldAuthor; - } - function _exitAuthor(state, oldAuthor) { - state.authorLevel--; - state.author = oldAuthor; - _recalcAttribString(state); - } - function _recalcAttribString(state) { - var lst = []; - for(var a in state.attribs) { - if (state.attribs[a]) { - lst.push([a,'true']); - } - } - if (state.authorLevel > 0) { - var authorAttrib = ['author', state.author]; - if (apool.putAttrib(authorAttrib, true) >= 0) { - // require that author already be in pool - // (don't add authors from other documents, etc.) - lst.push(authorAttrib); - } - } - state.attribString = Changeset.makeAttribsString('+', lst, apool); - } - function _produceListMarker(state) { - lines.appendText('*', Changeset.makeAttribsString( - '+', [['list', state.listType], - ['insertorder', 'first']], - apool)); - } - function _startNewLine(state) { - if (state) { - var atBeginningOfLine = lines.textOfLine(lines.length()-1).length == 0; - if (atBeginningOfLine && state.listType && state.listType != 'none') { - _produceListMarker(state); - } - } - lines.startNew(); - } - cc.notifySelection = function (sel) { - if (sel) { - selection = sel; - startPoint = selection.startPoint; - endPoint = selection.endPoint; - } - }; - cc.collectContent = function (node, state) { - if (! state) { - state = {flags: {/*name -> nesting counter*/}, - attribs: {/*name -> nesting counter*/}, - attribString: ''}; - } - var isBlock = isBlockElement(node); - var isEmpty = _isEmpty(node, state); - if (isBlock) _ensureColumnZero(state); - var startLine = lines.length()-1; - _reachBlockPoint(node, 0, state); - if (dom.isNodeText(node)) { - var txt = dom.nodeValue(node); - var rest = ''; - var x = 0; // offset into original text - if (txt.length == 0) { - if (startPoint && node == startPoint.node) { - selStart = _pointHere(0, state); - } - if (endPoint && node == endPoint.node) { - selEnd = _pointHere(0, state); - } - } - while (txt.length > 0) { - var consumed = 0; - if (state.flags.preMode) { - var firstLine = txt.split('\n',1)[0]; - consumed = firstLine.length+1; - rest = txt.substring(consumed); - txt = firstLine; - } - else { /* will only run this loop body once */ } - if (startPoint && node == startPoint.node && - startPoint.index-x <= txt.length) { - selStart = _pointHere(startPoint.index-x, state); - } - if (endPoint && node == endPoint.node && - endPoint.index-x <= txt.length) { - selEnd = _pointHere(endPoint.index-x, state); - } - var txt2 = txt; - if ((! state.flags.preMode) && /^[\r\n]*$/.exec(txt)) { - // prevents textnodes containing just "\n" from being significant - // in safari when pasting text, now that we convert them to - // spaces instead of removing them, because in other cases - // removing "\n" from pasted HTML will collapse words together. - txt2 = ""; - } - var atBeginningOfLine = lines.textOfLine(lines.length()-1).length == 0; - if (atBeginningOfLine) { - // newlines in the source mustn't become spaces at beginning of line box - txt2 = txt2.replace(/^\n*/, ''); - } - if (atBeginningOfLine && state.listType && state.listType != 'none') { - _produceListMarker(state); - } - lines.appendText(textify(txt2), state.attribString); - x += consumed; - txt = rest; - if (txt.length > 0) { - _startNewLine(state); - } - } - } - else { - var tname = (dom.nodeTagName(node) || "").toLowerCase(); - if (tname == "br") { - _startNewLine(state); - } - else if (tname == "script" || tname == "style") { - // ignore - } - else if (! isEmpty) { - var styl = dom.nodeAttr(node, "style"); - var cls = dom.nodeProp(node, "className"); - - var isPre = (tname == "pre"); - if ((! isPre) && browser.safari) { - isPre = (styl && /\bwhite-space:\s*pre\b/i.exec(styl)); - } - if (isPre) _incrementFlag(state, 'preMode'); - var attribs = null; - var oldListTypeOrNull = null; - var oldAuthorOrNull = null; - if (collectStyles) { - function doAttrib(na) { - attribs = (attribs || []); - attribs.push(na); - _incrementAttrib(state, na); - } - if (tname == "b" || (styl && /\bfont-weight:\s*bold\b/i.exec(styl)) || - tname == "strong") { - doAttrib("bold"); - } - if (tname == "i" || (styl && /\bfont-style:\s*italic\b/i.exec(styl)) || - tname == "em") { - doAttrib("italic"); - } - if (tname == "u" || (styl && /\btext-decoration:\s*underline\b/i.exec(styl)) || - tname == "ins") { - doAttrib("underline"); - } - if (tname == "s" || (styl && /\btext-decoration:\s*line-through\b/i.exec(styl)) || - tname == "del") { - doAttrib("strikethrough"); - } - if (tname == "h1") { - doAttrib("h1"); - } - if (tname == "h2") { - doAttrib("h2"); - } - if (tname == "h3") { - doAttrib("h3"); - } - if (tname == "h4") { - doAttrib("h4"); - } - if (tname == "h5") { - doAttrib("h5"); - } - if (tname == "h6") { - doAttrib("h6"); - } - if (tname == "ul") { - var type; - var rr = cls && /(?:^| )list-(bullet[12345678])\b/.exec(cls); - type = rr && rr[1] || "bullet"+ - String(Math.min(_MAX_LIST_LEVEL, (state.listNesting||0)+1)); - oldListTypeOrNull = (_enterList(state, type) || 'none'); - } - else if ((tname == "div" || tname == "p") && cls && - cls.match(/(?:^| )ace-line\b/)) { - oldListTypeOrNull = (_enterList(state, type) || 'none'); - } - if (className2Author && cls) { - var classes = cls.match(/\S+/g); - if (classes && classes.length > 0) { - for(var i=0;i<classes.length;i++) { - var c = classes[i]; - var a = className2Author(c); - if (a) { - oldAuthorOrNull = (_enterAuthor(state, a) || 'none'); - break; - } - } - } - } - } - - var nc = dom.nodeNumChildren(node); - for(var i=0;i<nc;i++) { - var c = dom.nodeChild(node, i); - cc.collectContent(c, state); - } - - if (isPre) _decrementFlag(state, 'preMode'); - if (attribs) { - for(var i=0;i<attribs.length;i++) { - _decrementAttrib(state, attribs[i]); - } - } - if (oldListTypeOrNull) { - _exitList(state, oldListTypeOrNull); - } - if (oldAuthorOrNull) { - _exitAuthor(state, oldAuthorOrNull); - } - } - } - if (! browser.msie) { - _reachBlockPoint(node, 1, state); - } - if (isBlock) { - if (lines.length()-1 == startLine) { - _startNewLine(state); - } - else { - _ensureColumnZero(state); - } - } - - if (browser.msie) { - // in IE, a point immediately after a DIV appears on the next line - _reachBlockPoint(node, 1, state); - } - }; - // can pass a falsy value for end of doc - cc.notifyNextNode = function (node) { - // an "empty block" won't end a line; this addresses an issue in IE with - // typing into a blank line at the end of the document. typed text - // goes into the body, and the empty line div still looks clean. - // it is incorporated as dirty by the rule that a dirty region has - // to end a line. - if ((!node) || (isBlockElement(node) && !_isEmpty(node))) { - _ensureColumnZero(null); - } - }; - // each returns [line, char] or [-1,-1] - var getSelectionStart = function() { return selStart; }; - var getSelectionEnd = function() { return selEnd; }; - - // returns array of strings for lines found, last entry will be "" if - // last line is complete (i.e. if a following span should be on a new line). - // can be called at any point - cc.getLines = function() { return lines.textLines(); }; - - //cc.applyHints = function(hints) { - //if (hints.pastedLines) { - // - //} - //} - - cc.finish = function() { - lines.flush(); - var lineAttribs = lines.attribLines(); - var lineStrings = cc.getLines(); - - lineStrings.length--; - lineAttribs.length--; - - var ss = getSelectionStart(); - var se = getSelectionEnd(); - - function fixLongLines() { - // design mode does not deal with with really long lines! - var lineLimit = 2000; // chars - var buffer = 10; // chars allowed over before wrapping - var linesWrapped = 0; - var numLinesAfter = 0; - for(var i=lineStrings.length-1; i>=0; i--) { - var oldString = lineStrings[i]; - var oldAttribString = lineAttribs[i]; - if (oldString.length > lineLimit+buffer) { - var newStrings = []; - var newAttribStrings = []; - while (oldString.length > lineLimit) { - //var semiloc = oldString.lastIndexOf(';', lineLimit-1); - //var lengthToTake = (semiloc >= 0 ? (semiloc+1) : lineLimit); - lengthToTake = lineLimit; - newStrings.push(oldString.substring(0, lengthToTake)); - oldString = oldString.substring(lengthToTake); - newAttribStrings.push(Changeset.subattribution(oldAttribString, - 0, lengthToTake)); - oldAttribString = Changeset.subattribution(oldAttribString, - lengthToTake); - } - if (oldString.length > 0) { - newStrings.push(oldString); - newAttribStrings.push(oldAttribString); - } - function fixLineNumber(lineChar) { - if (lineChar[0] < 0) return; - var n = lineChar[0]; - var c = lineChar[1]; - if (n > i) { - n += (newStrings.length-1); - } - else if (n == i) { - var a = 0; - while (c > newStrings[a].length) { - c -= newStrings[a].length; - a++; - } - n += a; - } - lineChar[0] = n; - lineChar[1] = c; - } - fixLineNumber(ss); - fixLineNumber(se); - linesWrapped++; - numLinesAfter += newStrings.length; - - newStrings.unshift(i, 1); - lineStrings.splice.apply(lineStrings, newStrings); - newAttribStrings.unshift(i, 1); - lineAttribs.splice.apply(lineAttribs, newAttribStrings); - } - } - return {linesWrapped:linesWrapped, numLinesAfter:numLinesAfter}; - } - var wrapData = fixLongLines(); - - return { selStart: ss, selEnd: se, linesWrapped: wrapData.linesWrapped, - numLinesAfter: wrapData.numLinesAfter, - lines: lineStrings, lineAttribs: lineAttribs }; - } - - return cc; -} |