vendor/assets/javascripts/rangy-serializer.js in rangy-rails-1.3alpha.780.0 vs vendor/assets/javascripts/rangy-serializer.js in rangy-rails-1.3alpha.804.0

- old
+ new

@@ -8,9 +8,288 @@ * * Depends on Rangy core. * * Copyright 2013, Tim Down * Licensed under the MIT license. - * Version: 1.3alpha.780M - * Build date: 17 May 2013 + * Version: 1.3alpha.804 + * Build date: 8 December 2013 */ -rangy.createModule("Serializer",["WrappedSelection"],function(a,b){function f(a){return a.replace(/</g,"&lt;").replace(/>/g,"&gt;")}function g(a,b){b=b||[];var c=a.nodeType,d=a.childNodes,e=d.length,h=[c,a.nodeName,e].join(":"),i="",j="";switch(c){case 3:i=f(a.nodeValue);break;case 8:i="<!--"+f(a.nodeValue)+"-->";break;default:i="<"+h+">",j="</>"}i&&b.push(i);for(var k=0;k<e;++k)g(d[k],b);return j&&b.push(j),b}function h(a){var b=g(a).join("");return d(b).toString(16)}function i(a,b,c){var d=[],f=a;c=c||e.getDocument(a).documentElement;while(f&&f!=c)d.push(e.getNodeIndex(f,!0)),f=f.parentNode;return d.join("/")+":"+b}function j(a,c,d){c||(c=(d||document).documentElement);var f=a.split(":"),g=c,h=f[0]?f[0].split("/"):[],i=h.length,j;while(i--){j=parseInt(h[i],10);if(!(j<g.childNodes.length))throw b.createError("deserializePosition() failed: node "+e.inspectNode(g)+" has no child with index "+j+", "+i);g=g.childNodes[j]}return new e.DomPosition(g,parseInt(f[1],10))}function k(c,d,f){f=f||a.DomRange.getRangeDocument(c).documentElement;if(!e.isOrIsAncestorOf(f,c.commonAncestorContainer))throw b.createError("serializeRange(): range "+c.inspect()+" is not wholly contained within specified root node "+e.inspectNode(f));var g=i(c.startContainer,c.startOffset,f)+","+i(c.endContainer,c.endOffset,f);return d||(g+="{"+h(f)+"}"),g}function l(c,d,f){d?f=f||e.getDocument(d):(f=f||document,d=f.documentElement);var g=/^([^,]+),([^,\{]+)(\{([^}]+)\})?$/.exec(c),i=g[4],k=h(d);if(i&&i!==h(d))throw b.createError("deserializeRange(): checksums of serialized range root node ("+i+") and target root node ("+k+") do not match");var l=j(g[1],d,f),m=j(g[2],d,f),n=a.createRange(f);return n.setStartAndEnd(l.node,l.offset,m.node,m.offset),n}function m(a,b,c){b||(b=(c||document).documentElement);var d=/^([^,]+),([^,]+)(\{([^}]+)\})?$/.exec(a),e=d[3];return!e||e===h(b)}function n(b,c,d){b=a.getSelection(b);var e=b.getAllRanges(),f=[];for(var g=0,h=e.length;g<h;++g)f[g]=k(e[g],c,d);return f.join("|")}function o(b,c,d){c?d=d||e.getWindow(c):(d=d||window,c=d.document.documentElement);var f=b.split("|"),g=a.getSelection(d),h=[];for(var i=0,j=f.length;i<j;++i)h[i]=l(f[i],c,d.document);return g.setRanges(h),g}function p(a,b,c){var d;b?d=c?c.document:e.getDocument(b):(c=c||window,b=c.document.documentElement);var f=a.split("|");for(var g=0,h=f.length;g<h;++g)if(!m(f[g],b,d))return!1;return!0}function r(a){var b=a.split(/[;,]/);for(var c=0,d=b.length,e,f;c<d;++c){e=b[c].split("=");if(e[0].replace(/^\s+/,"")==q){f=e[1];if(f)return decodeURIComponent(f.replace(/\s+$/,""))}}return null}function s(a){a=a||window;var b=r(a.document.cookie);b&&o(b,a.doc)}function t(b,c){b=b||window,c=typeof c=="object"?c:{};var d=c.expires?";expires="+c.expires.toUTCString():"",e=c.path?";path="+c.path:"",f=c.domain?";domain="+c.domain:"",g=c.secure?";secure":"",h=n(a.getSelection(b));b.document.cookie=encodeURIComponent(q)+"="+encodeURIComponent(h)+d+e+f+g}var c="undefined";(typeof encodeURIComponent==c||typeof decodeURIComponent==c)&&b.fail("Global object is missing encodeURIComponent and/or decodeURIComponent method");var d=function(){function a(a){var b=[];for(var c=0,d=a.length,e;c<d;++c)e=a.charCodeAt(c),e<128?b.push(e):e<2048?b.push(e>>6|192,e&63|128):b.push(e>>12|224,e>>6&63|128,e&63|128);return b}function c(){var a=[];for(var b=0,c,d;b<256;++b){d=b,c=8;while(c--)(d&1)==1?d=d>>>1^3988292384:d>>>=1;a[b]=d>>>0}return a}function d(){return b||(b=c()),b}var b=null;return function(b){var c=a(b),e=-1,f=d();for(var g=0,h=c.length,i;g<h;++g)i=(e^c[g])&255,e=e>>>8^f[i];return(e^-1)>>>0}}(),e=a.dom,q="rangySerializedSelection";a.serializePosition=i,a.deserializePosition=j,a.serializeRange=k,a.deserializeRange=l,a.canDeserializeRange=m,a.serializeSelection=n,a.deserializeSelection=o,a.canDeserializeSelection=p,a.restoreSelectionFromCookie=s,a.saveSelectionCookie=t,a.getElementChecksum=h,a.nodeToInfoString=g}) \ No newline at end of file +rangy.createModule("Serializer", ["WrappedSelection"], function(api, module) { + var UNDEF = "undefined"; + + // encodeURIComponent and decodeURIComponent are required for cookie handling + if (typeof encodeURIComponent == UNDEF || typeof decodeURIComponent == UNDEF) { + module.fail("Global object is missing encodeURIComponent and/or decodeURIComponent method"); + } + + // Checksum for checking whether range can be serialized + var crc32 = (function() { + function utf8encode(str) { + var utf8CharCodes = []; + + for (var i = 0, len = str.length, c; i < len; ++i) { + c = str.charCodeAt(i); + if (c < 128) { + utf8CharCodes.push(c); + } else if (c < 2048) { + utf8CharCodes.push((c >> 6) | 192, (c & 63) | 128); + } else { + utf8CharCodes.push((c >> 12) | 224, ((c >> 6) & 63) | 128, (c & 63) | 128); + } + } + return utf8CharCodes; + } + + var cachedCrcTable = null; + + function buildCRCTable() { + var table = []; + for (var i = 0, j, crc; i < 256; ++i) { + crc = i; + j = 8; + while (j--) { + if ((crc & 1) == 1) { + crc = (crc >>> 1) ^ 0xEDB88320; + } else { + crc >>>= 1; + } + } + table[i] = crc >>> 0; + } + return table; + } + + function getCrcTable() { + if (!cachedCrcTable) { + cachedCrcTable = buildCRCTable(); + } + return cachedCrcTable; + } + + return function(str) { + var utf8CharCodes = utf8encode(str), crc = -1, crcTable = getCrcTable(); + for (var i = 0, len = utf8CharCodes.length, y; i < len; ++i) { + y = (crc ^ utf8CharCodes[i]) & 0xFF; + crc = (crc >>> 8) ^ crcTable[y]; + } + return (crc ^ -1) >>> 0; + }; + })(); + + var dom = api.dom; + + function escapeTextForHtml(str) { + return str.replace(/</g, "&lt;").replace(/>/g, "&gt;"); + } + + function nodeToInfoString(node, infoParts) { + infoParts = infoParts || []; + var nodeType = node.nodeType, children = node.childNodes, childCount = children.length; + var nodeInfo = [nodeType, node.nodeName, childCount].join(":"); + var start = "", end = ""; + switch (nodeType) { + case 3: // Text node + start = escapeTextForHtml(node.nodeValue); + break; + case 8: // Comment + start = "<!--" + escapeTextForHtml(node.nodeValue) + "-->"; + break; + default: + start = "<" + nodeInfo + ">"; + end = "</>"; + break; + } + if (start) { + infoParts.push(start); + } + for (var i = 0; i < childCount; ++i) { + nodeToInfoString(children[i], infoParts); + } + if (end) { + infoParts.push(end); + } + return infoParts; + } + + // Creates a string representation of the specified element's contents that is similar to innerHTML but omits all + // attributes and comments and includes child node counts. This is done instead of using innerHTML to work around + // IE <= 8's policy of including element properties in attributes, which ruins things by changing an element's + // innerHTML whenever the user changes an input within the element. + function getElementChecksum(el) { + var info = nodeToInfoString(el).join(""); + return crc32(info).toString(16); + } + + function serializePosition(node, offset, rootNode) { + var pathParts = [], n = node; + rootNode = rootNode || dom.getDocument(node).documentElement; + while (n && n != rootNode) { + pathParts.push(dom.getNodeIndex(n, true)); + n = n.parentNode; + } + return pathParts.join("/") + ":" + offset; + } + + function deserializePosition(serialized, rootNode, doc) { + if (!rootNode) { + rootNode = (doc || document).documentElement; + } + var parts = serialized.split(":"); + var node = rootNode; + var nodeIndices = parts[0] ? parts[0].split("/") : [], i = nodeIndices.length, nodeIndex; + + while (i--) { + nodeIndex = parseInt(nodeIndices[i], 10); + if (nodeIndex < node.childNodes.length) { + node = node.childNodes[nodeIndex]; + } else { + throw module.createError("deserializePosition() failed: node " + dom.inspectNode(node) + + " has no child with index " + nodeIndex + ", " + i); + } + } + + return new dom.DomPosition(node, parseInt(parts[1], 10)); + } + + function serializeRange(range, omitChecksum, rootNode) { + rootNode = rootNode || api.DomRange.getRangeDocument(range).documentElement; + if (!dom.isOrIsAncestorOf(rootNode, range.commonAncestorContainer)) { + throw module.createError("serializeRange(): range " + range.inspect() + + " is not wholly contained within specified root node " + dom.inspectNode(rootNode)); + } + var serialized = serializePosition(range.startContainer, range.startOffset, rootNode) + "," + + serializePosition(range.endContainer, range.endOffset, rootNode); + if (!omitChecksum) { + serialized += "{" + getElementChecksum(rootNode) + "}"; + } + return serialized; + } + + var deserializeRegex = /^([^,]+),([^,\{]+)(\{([^}]+)\})?$/; + + function deserializeRange(serialized, rootNode, doc) { + if (rootNode) { + doc = doc || dom.getDocument(rootNode); + } else { + doc = doc || document; + rootNode = doc.documentElement; + } + var result = deserializeRegex.exec(serialized); + var checksum = result[4], rootNodeChecksum = getElementChecksum(rootNode); + if (checksum && checksum !== getElementChecksum(rootNode)) { + throw module.createError("deserializeRange(): checksums of serialized range root node (" + checksum + + ") and target root node (" + rootNodeChecksum + ") do not match"); + } + var start = deserializePosition(result[1], rootNode, doc), end = deserializePosition(result[2], rootNode, doc); + var range = api.createRange(doc); + range.setStartAndEnd(start.node, start.offset, end.node, end.offset); + return range; + } + + function canDeserializeRange(serialized, rootNode, doc) { + if (!rootNode) { + rootNode = (doc || document).documentElement; + } + var result = deserializeRegex.exec(serialized); + var checksum = result[3]; + return !checksum || checksum === getElementChecksum(rootNode); + } + + function serializeSelection(selection, omitChecksum, rootNode) { + selection = api.getSelection(selection); + var ranges = selection.getAllRanges(), serializedRanges = []; + for (var i = 0, len = ranges.length; i < len; ++i) { + serializedRanges[i] = serializeRange(ranges[i], omitChecksum, rootNode); + } + return serializedRanges.join("|"); + } + + function deserializeSelection(serialized, rootNode, win) { + if (rootNode) { + win = win || dom.getWindow(rootNode); + } else { + win = win || window; + rootNode = win.document.documentElement; + } + var serializedRanges = serialized.split("|"); + var sel = api.getSelection(win); + var ranges = []; + + for (var i = 0, len = serializedRanges.length; i < len; ++i) { + ranges[i] = deserializeRange(serializedRanges[i], rootNode, win.document); + } + sel.setRanges(ranges); + + return sel; + } + + function canDeserializeSelection(serialized, rootNode, win) { + var doc; + if (rootNode) { + doc = win ? win.document : dom.getDocument(rootNode); + } else { + win = win || window; + rootNode = win.document.documentElement; + } + var serializedRanges = serialized.split("|"); + + for (var i = 0, len = serializedRanges.length; i < len; ++i) { + if (!canDeserializeRange(serializedRanges[i], rootNode, doc)) { + return false; + } + } + + return true; + } + + var cookieName = "rangySerializedSelection"; + + function getSerializedSelectionFromCookie(cookie) { + var parts = cookie.split(/[;,]/); + for (var i = 0, len = parts.length, nameVal, val; i < len; ++i) { + nameVal = parts[i].split("="); + if (nameVal[0].replace(/^\s+/, "") == cookieName) { + val = nameVal[1]; + if (val) { + return decodeURIComponent(val.replace(/\s+$/, "")); + } + } + } + return null; + } + + function restoreSelectionFromCookie(win) { + win = win || window; + var serialized = getSerializedSelectionFromCookie(win.document.cookie); + if (serialized) { + deserializeSelection(serialized, win.doc); + } + } + + function saveSelectionCookie(win, props) { + win = win || window; + props = (typeof props == "object") ? props : {}; + var expires = props.expires ? ";expires=" + props.expires.toUTCString() : ""; + var path = props.path ? ";path=" + props.path : ""; + var domain = props.domain ? ";domain=" + props.domain : ""; + var secure = props.secure ? ";secure" : ""; + var serialized = serializeSelection(api.getSelection(win)); + win.document.cookie = encodeURIComponent(cookieName) + "=" + encodeURIComponent(serialized) + expires + path + domain + secure; + } + + api.serializePosition = serializePosition; + api.deserializePosition = deserializePosition; + + api.serializeRange = serializeRange; + api.deserializeRange = deserializeRange; + api.canDeserializeRange = canDeserializeRange; + + api.serializeSelection = serializeSelection; + api.deserializeSelection = deserializeSelection; + api.canDeserializeSelection = canDeserializeSelection; + + api.restoreSelectionFromCookie = restoreSelectionFromCookie; + api.saveSelectionCookie = saveSelectionCookie; + + api.getElementChecksum = getElementChecksum; + api.nodeToInfoString = nodeToInfoString; +});