vendor/assets/javascripts/rangy-highlighter.js in rangy-rails-1.3alpha.772.0 vs vendor/assets/javascripts/rangy-highlighter.js in rangy-rails-1.3alpha.780.0
- old
+ new
@@ -4,493 +4,9 @@
*
* Depends on Rangy core, TextRange and CssClassApplier modules.
*
* Copyright 2013, Tim Down
* Licensed under the MIT license.
- * Version: 1.3alpha.772
- * Build date: 26 February 2013
+ * Version: 1.3alpha.780M
+ * Build date: 17 May 2013
*/
-rangy.createModule("Highlighter", function(api, module) {
- api.requireModules( ["CssClassApplier"] );
-
- var dom = api.dom;
- var contains = dom.arrayContains;
- var getBody = dom.getBody;
-
- // Puts highlights in order, last in document first.
- function compareHighlights(h1, h2) {
- return h1.characterRange.start - h2.characterRange.start;
- }
-
- var forEach = [].forEach ?
- function(arr, func) {
- arr.forEach(func);
- } :
- function(arr, func) {
- for (var i = 0, len = arr.length; i < len; ++i) {
- func( arr[i] );
- }
- };
-
- var nextHighlightId = 1;
-
- /*----------------------------------------------------------------------------------------------------------------*/
-
- var highlighterTypes = {};
-
- function HighlighterType(type, converterCreator) {
- this.type = type;
- this.converterCreator = converterCreator;
- }
-
- HighlighterType.prototype.create = function() {
- var converter = this.converterCreator();
- converter.type = this.type;
- return converter;
- };
-
- function registerHighlighterType(type, converterCreator) {
- highlighterTypes[type] = new HighlighterType(type, converterCreator);
- }
-
- function getConverter(type) {
- var highlighterType = highlighterTypes[type];
- if (highlighterType instanceof HighlighterType) {
- return highlighterType.create();
- } else {
- throw new Error("Highlighter type '" + type + "' is not valid");
- }
- }
-
- api.registerHighlighterType = registerHighlighterType;
-
- /*----------------------------------------------------------------------------------------------------------------*/
-
- function CharacterRange(start, end) {
- this.start = start;
- this.end = end;
- }
-
- CharacterRange.prototype = {
- intersects: function(charRange) {
- return this.start < charRange.end && this.end > charRange.start;
- },
-
- union: function(charRange) {
- return new CharacterRange(Math.min(this.start, charRange.start), Math.max(this.end, charRange.end));
- },
-
- intersection: function(charRange) {
- return new CharacterRange(Math.max(this.start, charRange.start), Math.min(this.end, charRange.end));
- },
-
- toString: function() {
- return "[CharacterRange(" + this.start + ", " + this.end + ")]";
- }
- };
-
- CharacterRange.fromCharacterRange = function(charRange) {
- return new CharacterRange(charRange.start, charRange.end);
- };
-
- /*----------------------------------------------------------------------------------------------------------------*/
-
- var textContentConverter = {
- rangeToCharacterRange: function(range, containerNode) {
- var bookmark = range.getBookmark(containerNode);
- return new CharacterRange(bookmark.start, bookmark.end);
- },
-
- characterRangeToRange: function(doc, characterRange, containerNode) {
- var range = api.createRange(doc);
- range.moveToBookmark({
- start: characterRange.start,
- end: characterRange.end,
- containerNode: containerNode
- });
-
- return range;
- },
-
- serializeSelection: function(selection, containerNode) {
- var ranges = selection.getAllRanges(), rangeCount = ranges.length;
- var rangeInfos = [];
-
- var backward = rangeCount == 1 && selection.isBackward();
-
- for (var i = 0, len = ranges.length; i < len; ++i) {
- rangeInfos[i] = {
- characterRange: this.rangeToCharacterRange(ranges[i], containerNode),
- backward: backward
- };
- }
-
- return rangeInfos;
- },
-
- restoreSelection: function(selection, savedSelection, containerNode) {
- selection.removeAllRanges();
- var doc = selection.win.document;
- for (var i = 0, len = savedSelection.length, range, rangeInfo, characterRange; i < len; ++i) {
- rangeInfo = savedSelection[i];
- characterRange = rangeInfo.characterRange;
- range = this.characterRangeToRange(doc, rangeInfo.characterRange, containerNode);
- selection.addRange(range, rangeInfo.backward);
- }
- }
- };
-
- registerHighlighterType("textContent", function() {
- return textContentConverter;
- });
-
- /*----------------------------------------------------------------------------------------------------------------*/
-
- // Lazily load the TextRange-based converter so that the dependency is only checked when required.
- registerHighlighterType("TextRange", (function() {
- var converter;
-
- return function() {
- if (!converter) {
- // Test that textRangeModule exists and is supported
- var textRangeModule = api.modules.TextRange;
- if (!textRangeModule) {
- throw new Error("TextRange module is missing.");
- } else if (!textRangeModule.supported) {
- throw new Error("TextRange module is present but not supported.");
- }
-
- converter = {
- rangeToCharacterRange: function(range, containerNode) {
- return CharacterRange.fromCharacterRange( range.toCharacterRange(containerNode) );
- },
-
- characterRangeToRange: function(doc, characterRange, containerNode) {
- var range = api.createRange(doc);
- range.selectCharacters(containerNode, characterRange.start, characterRange.end);
- return range;
- },
-
- serializeSelection: function(selection, containerNode) {
- return selection.saveCharacterRanges(containerNode);
- },
-
- restoreSelection: function(selection, savedSelection, containerNode) {
- selection.restoreCharacterRanges(containerNode, savedSelection);
- }
- };
- }
-
- return converter;
- };
- })());
-
- /*----------------------------------------------------------------------------------------------------------------*/
-
- function Highlight(doc, characterRange, classApplier, converter, id, containerElementId) {
- if (id) {
- this.id = id;
- nextHighlightId = Math.max(nextHighlightId, id + 1);
- } else {
- this.id = nextHighlightId++;
- }
- this.characterRange = characterRange;
- this.doc = doc;
- this.classApplier = classApplier;
- this.converter = converter;
- this.containerElementId = containerElementId || null;
- this.applied = false;
- }
-
- Highlight.prototype = {
- getContainerElement: function() {
- return this.containerElementId ? this.doc.getElementById(this.containerElementId) : getBody(this.doc);
- },
-
- getRange: function() {
- return this.converter.characterRangeToRange(this.doc, this.characterRange, this.getContainerElement());
- },
-
- fromRange: function(range) {
- this.characterRange = this.converter.rangeToCharacterRange(range, this.getContainerElement());
- },
-
- getText: function() {
- return this.getRange().toString();
- },
-
- containsElement: function(el) {
- return this.getRange().containsNodeContents(el.firstChild);
- },
-
- unapply: function() {
- this.classApplier.undoToRange(this.getRange());
- this.applied = false;
- },
-
- apply: function() {
- this.classApplier.applyToRange(this.getRange());
- this.applied = true;
- },
-
- getHighlightElements: function() {
- return this.classApplier.getElementsWithClassIntersectingRange(this.getRange());
- },
-
- toString: function() {
- return "[Highlight(ID: " + this.id + ", class: " + this.classApplier.cssClass + ", character range: " +
- this.characterRange.start + " - " + this.characterRange.end + ")]";
- }
- };
-
- /*----------------------------------------------------------------------------------------------------------------*/
-
- function Highlighter(doc, type) {
- type = type || "textContent";
- this.doc = doc || document;
- this.classAppliers = {};
- this.highlights = [];
- this.converter = getConverter(type);
- }
-
- Highlighter.prototype = {
- addClassApplier: function(classApplier) {
- this.classAppliers[classApplier.cssClass] = classApplier;
- },
-
- getHighlightForElement: function(el) {
- var highlights = this.highlights;
- for (var i = 0, len = highlights.length; i < len; ++i) {
- if (highlights[i].containsElement(el)) {
- return highlights[i];
- }
- }
- return null;
- },
-
- removeHighlights: function(highlights) {
- for (var i = 0, len = this.highlights.length, highlight; i < len; ++i) {
- highlight = this.highlights[i];
- if (contains(highlights, highlight)) {
- highlight.unapply();
- this.highlights.splice(i--, 1);
- }
- }
- },
-
- removeAllHighlights: function() {
- this.removeHighlights(this.highlights);
- },
-
- getIntersectingHighlights: function(ranges) {
- // Test each range against each of the highlighted ranges to see whether they overlap
- var intersectingHighlights = [], highlights = this.highlights, converter = this.converter;
- forEach(ranges, function(range) {
- //var selCharRange = converter.rangeToCharacterRange(range);
- forEach(highlights, function(highlight) {
- if (range.intersectsRange( highlight.getRange() ) && !contains(intersectingHighlights, highlight)) {
- intersectingHighlights.push(highlight);
- }
- });
- });
-
- return intersectingHighlights;
- },
-
- highlightCharacterRanges: function(className, charRanges, containerElementId) {
- var i, len, j;
- var highlights = this.highlights;
- var converter = this.converter;
- var doc = this.doc;
- var highlightsToRemove = [];
- var classApplier = this.classAppliers[className];
- containerElementId = containerElementId || null;
-
- var containerElement, containerElementRange, containerElementCharRange;
- if (containerElementId) {
- containerElement = this.doc.getElementById(containerElementId);
- if (containerElement) {
- containerElementRange = api.createRange(this.doc);
- containerElementRange.selectNodeContents(containerElement);
- containerElementCharRange = new CharacterRange(0, containerElementRange.toString().length);
- containerElementRange.detach();
- }
- }
-
- var charRange, highlightCharRange, highlightRange, merged;
- for (i = 0, len = charRanges.length; i < len; ++i) {
- charRange = charRanges[i];
- merged = false;
-
- // Restrict character range to container element, if it exists
- if (containerElementCharRange) {
- charRange = charRange.intersection(containerElementCharRange);
- }
-
- // Check for intersection with existing highlights. For each intersection, create a new highlight
- // which is the union of the highlight range and the selected range
- for (j = 0; j < highlights.length; ++j) {
- if (containerElementId == highlights[j].containerElementId) {
- highlightCharRange = highlights[j].characterRange;
-
- if (highlightCharRange.intersects(charRange)) {
- // Replace the existing highlight in the list of current highlights and add it to the list for
- // removal
- highlightsToRemove.push(highlights[j]);
- highlights[j] = new Highlight(doc, highlightCharRange.union(charRange), classApplier, converter, null, containerElementId);
- }
- }
- }
-
- if (!merged) {
- highlights.push( new Highlight(doc, charRange, classApplier, converter, null, containerElementId) );
- }
- }
-
- // Remove the old highlights
- forEach(highlightsToRemove, function(highlightToRemove) {
- highlightToRemove.unapply();
- });
-
- // Apply new highlights
- var newHighlights = [];
- forEach(highlights, function(highlight) {
- if (!highlight.applied) {
- highlight.apply();
- newHighlights.push(highlight);
- }
- });
-
- return newHighlights;
- },
-
- highlightRanges: function(className, ranges, containerElement) {
- var selCharRanges = [];
- var converter = this.converter;
- var containerElementId = containerElement ? containerElement.id : null;
- var containerElementRange;
- if (containerElement) {
- containerElementRange = api.createRange(containerElement);
- containerElementRange.selectNodeContents(containerElement);
- }
-
- forEach(ranges, function(range) {
- var scopedRange = containerElement ? containerElementRange.intersection(range) : range;
- selCharRanges.push( converter.rangeToCharacterRange(scopedRange, containerElement || getBody(range.getDocument())) );
- });
-
- return this.highlightCharacterRanges(selCharRanges, ranges, containerElementId);
- },
-
- highlightSelection: function(className, selection, containerElementId) {
- var converter = this.converter;
- selection = selection || api.getSelection();
- var classApplier = this.classAppliers[className];
- var highlights = this.highlights;
- var doc = selection.win.document;
- var containerElement = containerElementId ? doc.getElementById(containerElementId) : getBody(doc);
-
- if (!classApplier) {
- throw new Error("No class applier found for class '" + className + "'");
- }
-
- // Store the existing selection as character ranges
- var serializedSelection = converter.serializeSelection(selection, containerElement);
-
- // Create an array of selected character ranges
- var selCharRanges = [];
- forEach(serializedSelection, function(rangeInfo) {
- selCharRanges.push( CharacterRange.fromCharacterRange(rangeInfo.characterRange) );
- });
-
- var newHighlights = this.highlightCharacterRanges(className, selCharRanges, containerElementId);
-
- // Restore selection
- converter.restoreSelection(selection, serializedSelection, containerElement);
-
- return newHighlights;
- },
-
- unhighlightSelection: function(selection) {
- selection = selection || api.getSelection();
- var intersectingHighlights = this.getIntersectingHighlights( selection.getAllRanges() );
- this.removeHighlights(intersectingHighlights);
- selection.removeAllRanges();
- },
-
- selectionOverlapsHighlight: function(selection) {
- selection = selection || api.getSelection();
- return this.getIntersectingHighlights(selection.getAllRanges()).length > 0;
- },
-
- serialize: function(options) {
- var highlights = this.highlights;
- highlights.sort(compareHighlights);
- var serializedHighlights = ["type:" + this.converter.type];
-
- forEach(highlights, function(highlight) {
- var characterRange = highlight.characterRange;
- var parts = [
- characterRange.start,
- characterRange.end,
- highlight.id,
- highlight.classApplier.cssClass,
- highlight.containerElementId
- ];
- if (options && options.serializeHighlightText) {
- parts.push(highlight.getText());
- }
- serializedHighlights.push( parts.join("$") );
- });
-
- return serializedHighlights.join("|");
- },
-
- deserialize: function(serialized) {
- var serializedHighlights = serialized.split("|");
- var highlights = [];
-
- var firstHighlight = serializedHighlights[0];
- var regexResult;
- var serializationType, serializationConverter, convertType = false;
- if ( firstHighlight && (regexResult = /^type:(\w+)$/.exec(firstHighlight)) ) {
- serializationType = regexResult[1];
- if (serializationType != this.converter.type) {
- serializationConverter = getConverter(serializationType);
- convertType = true;
- }
- serializedHighlights.shift();
- } else {
- throw new Error("Serialized highlights are invalid.");
- }
-
- var classApplier, highlight, characterRange, containerElementId, containerElement;
-
- for (var i = serializedHighlights.length, parts; i-- > 0; ) {
- parts = serializedHighlights[i].split("$");
- characterRange = new CharacterRange(+parts[0], +parts[1]);
- containerElementId = parts[4] || null;
- containerElement = containerElementId ? this.doc.getElementById(containerElementId) : getBody(this.doc);
-
- // Convert to the current Highlighter's type, if different from the serialization type
- if (convertType) {
- characterRange = this.converter.rangeToCharacterRange(
- serializationConverter.characterRangeToRange(this.doc, characterRange, containerElement),
- containerElement
- );
- }
-
- classApplier = this.classAppliers[parts[3]];
- highlight = new Highlight(this.doc, characterRange, classApplier, this.converter, parseInt(parts[2]), containerElementId);
- highlight.apply();
- highlights.push(highlight);
- }
- this.highlights = highlights;
- }
- };
-
- api.Highlighter = Highlighter;
-
- api.createHighlighter = function(doc, rangeCharacterOffsetConverterType) {
- return new Highlighter(doc, rangeCharacterOffsetConverterType);
- };
-});
+rangy.createModule("Highlighter",["ClassApplier"],function(a,b){function f(a,b){return a.characterRange.start-b.characterRange.start}function j(a,b){this.type=a,this.converterCreator=b}function k(a,b){i[a]=new j(a,b)}function l(a){var b=i[a];if(b instanceof j)return b.create();throw new Error("Highlighter type '"+a+"' is not valid")}function m(a,b){this.start=a,this.end=b}function o(a,b,c,d,e,f){e?(this.id=e,h=Math.max(h,e+1)):this.id=h++,this.characterRange=b,this.doc=a,this.classApplier=c,this.converter=d,this.containerElementId=f||null,this.applied=!1}function p(a,b){b=b||"textContent",this.doc=a||document,this.classAppliers={},this.highlights=[],this.converter=l(b)}var c=a.dom,d=c.arrayContains,e=c.getBody,g=[].forEach?function(a,b){a.forEach(b)}:function(a,b){for(var c=0,d=a.length;c<d;++c)b(a[c])},h=1,i={};j.prototype.create=function(){var a=this.converterCreator();return a.type=this.type,a},a.registerHighlighterType=k,m.prototype={intersects:function(a){return this.start<a.end&&this.end>a.start},union:function(a){return new m(Math.min(this.start,a.start),Math.max(this.end,a.end))},intersection:function(a){return new m(Math.max(this.start,a.start),Math.min(this.end,a.end))},toString:function(){return"[CharacterRange("+this.start+", "+this.end+")]"}},m.fromCharacterRange=function(a){return new m(a.start,a.end)};var n={rangeToCharacterRange:function(a,b){var c=a.getBookmark(b);return new m(c.start,c.end)},characterRangeToRange:function(b,c,d){var e=a.createRange(b);return e.moveToBookmark({start:c.start,end:c.end,containerNode:d}),e},serializeSelection:function(a,b){var c=a.getAllRanges(),d=c.length,e=[],f=d==1&&a.isBackward();for(var g=0,h=c.length;g<h;++g)e[g]={characterRange:this.rangeToCharacterRange(c[g],b),backward:f};return e},restoreSelection:function(a,b,c){a.removeAllRanges();var d=a.win.document;for(var e=0,f=b.length,g,h,i;e<f;++e)h=b[e],i=h.characterRange,g=this.characterRangeToRange(d,h.characterRange,c),a.addRange(g,h.backward)}};k("textContent",function(){return n}),k("TextRange",function(){var b;return function(){if(!b){var c=a.modules.TextRange;if(!c)throw new Error("TextRange module is missing.");if(!c.supported)throw new Error("TextRange module is present but not supported.");b={rangeToCharacterRange:function(a,b){return m.fromCharacterRange(a.toCharacterRange(b))},characterRangeToRange:function(b,c,d){var e=a.createRange(b);return e.selectCharacters(d,c.start,c.end),e},serializeSelection:function(a,b){return a.saveCharacterRanges(b)},restoreSelection:function(a,b,c){a.restoreCharacterRanges(c,b)}}}return b}}()),o.prototype={getContainerElement:function(){return this.containerElementId?this.doc.getElementById(this.containerElementId):e(this.doc)},getRange:function(){return this.converter.characterRangeToRange(this.doc,this.characterRange,this.getContainerElement())},fromRange:function(a){this.characterRange=this.converter.rangeToCharacterRange(a,this.getContainerElement())},getText:function(){return this.getRange().toString()},containsElement:function(a){return this.getRange().containsNodeContents(a.firstChild)},unapply:function(){this.classApplier.undoToRange(this.getRange()),this.applied=!1},apply:function(){this.classApplier.applyToRange(this.getRange()),this.applied=!0},getHighlightElements:function(){return this.classApplier.getElementsWithClassIntersectingRange(this.getRange())},toString:function(){return"[Highlight(ID: "+this.id+", class: "+this.classApplier.cssClass+", character range: "+this.characterRange.start+" - "+this.characterRange.end+")]"}},p.prototype={addClassApplier:function(a){this.classAppliers[a.cssClass]=a},getHighlightForElement:function(a){var b=this.highlights;for(var c=0,d=b.length;c<d;++c)if(b[c].containsElement(a))return b[c];return null},removeHighlights:function(a){for(var b=0,c=this.highlights.length,e;b<c;++b)e=this.highlights[b],d(a,e)&&(e.unapply(),this.highlights.splice(b--,1))},removeAllHighlights:function(){this.removeHighlights(this.highlights)},getIntersectingHighlights:function(a){var b=[],c=this.highlights,e=this.converter;return g(a,function(a){g(c,function(c){a.intersectsRange(c.getRange())&&!d(b,c)&&b.push(c)})}),b},highlightCharacterRanges:function(b,c,d){var e,f,h,i=this.highlights,j=this.converter,k=this.doc,l=[],n=this.classAppliers[b];d=d||null;var p,q,r;d&&(p=this.doc.getElementById(d),p&&(q=a.createRange(this.doc),q.selectNodeContents(p),r=new m(0,q.toString().length),q.detach()));var s,t,u,v;for(e=0,f=c.length;e<f;++e){s=c[e],v=!1,r&&(s=s.intersection(r));for(h=0;h<i.length;++h)d==i[h].containerElementId&&(t=i[h].characterRange,t.intersects(s)&&(l.push(i[h]),i[h]=new o(k,t.union(s),n,j,null,d)));v||i.push(new o(k,s,n,j,null,d))}g(l,function(a){a.unapply()});var w=[];return g(i,function(a){a.applied||(a.apply(),w.push(a))}),w},highlightRanges:function(b,c,d){var f=[],h=this.converter,i=d?d.id:null,j;return d&&(j=a.createRange(d),j.selectNodeContents(d)),g(c,function(a){var b=d?j.intersection(a):a;f.push(h.rangeToCharacterRange(b,d||e(a.getDocument())))}),this.highlightCharacterRanges(f,c,i)},highlightSelection:function(b,c,d){var f=this.converter;c=c||a.getSelection();var h=this.classAppliers[b],i=this.highlights,j=c.win.document,k=d?j.getElementById(d):e(j);if(!h)throw new Error("No class applier found for class '"+b+"'");var l=f.serializeSelection(c,k),n=[];g(l,function(a){n.push(m.fromCharacterRange(a.characterRange))});var o=this.highlightCharacterRanges(b,n,d);return f.restoreSelection(c,l,k),o},unhighlightSelection:function(b){b=b||a.getSelection();var c=this.getIntersectingHighlights(b.getAllRanges());this.removeHighlights(c),b.removeAllRanges()},selectionOverlapsHighlight:function(b){return b=b||a.getSelection(),this.getIntersectingHighlights(b.getAllRanges()).length>0},serialize:function(a){var b=this.highlights;b.sort(f);var c=["type:"+this.converter.type];return g(b,function(b){var d=b.characterRange,e=[d.start,d.end,b.id,b.classApplier.cssClass,b.containerElementId];a&&a.serializeHighlightText&&e.push(b.getText()),c.push(e.join("$"))}),c.join("|")},deserialize:function(a){var b=a.split("|"),c=[],d=b[0],f,g,h,i=!1;if(!d||!(f=/^type:(\w+)$/.exec(d)))throw new Error("Serialized highlights are invalid.");g=f[1],g!=this.converter.type&&(h=l(g),i=!0),b.shift();var j,k,n,p,q;for(var r=b.length,s;r-->0;)s=b[r].split("$"),n=new m(+s[0],+s[1]),p=s[4]||null,q=p?this.doc.getElementById(p):e(this.doc),i&&(n=this.converter.rangeToCharacterRange(h.characterRangeToRange(this.doc,n,q),q)),j=this.classAppliers[s[3]],k=new o(this.doc,n,j,this.converter,parseInt(s[2]),p),k.apply(),c.push(k);this.highlights=c}},a.Highlighter=p,a.createHighlighter=function(a,b){return new p(a,b)}})
\ No newline at end of file