Refactoring

[fnpeditor.git] / modules / documentCanvas / canvas / canvas.js

diff --git a/modules/documentCanvas/canvas/canvas.js b/modules/documentCanvas/canvas/canvas.js
index 079c229..8ed9b58 100644 (file)
--- a/modules/documentCanvas/canvas/canvas.js
+++ b/modules/documentCanvas/canvas/canvas.js
@@ -41,7 +41,7 @@ $.extend(Canvas.prototype, {
                 });
 
                 element.dom().append(currentTag.contents());
-                ['orig-before', 'orig-append'].forEach(function(attr) {
+                ['orig-before', 'orig-after', 'orig-begin', 'orig-end'].forEach(function(attr) {
                     element.data(attr, '');
                 });
                 return element.dom();
@@ -50,55 +50,78 @@ $.extend(Canvas.prototype, {
             this.wrapper.find(':not(iframe)').addBack().contents()
                 .filter(function() {return this.nodeType === Node.TEXT_NODE})
                 .each(function() {
-
-                    var el = $(this);
-                    
                     // TODO: use DocumentElement API
-                    var spanParent = el.parent().attr('wlxml-tag') === 'span',
-                        spanBefore = el.prev().length > 0  && $(el.prev()[0]).attr('wlxml-tag') === 'span',
-                        spanAfter = el.next().length > 0 && $(el.next()[0]).attr('wlxml-tag') === 'span';
-                        
-                    var oldText = this.data,
-                        oldLength = this.data.length;
-                    var parent = el.parent(),
-                        parentContents = parent.contents(),
-                        idx = parentContents.index(this),
-                        next = idx < parentContents.length - 1 ? parentContents[idx+1] : null;
-
-                    var addInfo = function() {
-                        if(next) {
-                            $(next).data('orig-before', oldText);
-                        } else {
-                            parent.data('orig-append', oldText);
-                        }
+
+                    var el = $(this),
+                        text = {original: el.text(), trimmed: $.trim(el.text())},
+                        elParent = el.parent(),
+                        hasSpanParent = elParent.attr('wlxml-tag') === 'span',
+                        hasSpanBefore = el.prev().length > 0  && $(el.prev()[0]).attr('wlxml-tag') === 'span',
+                        hasSpanAfter = el.next().length > 0 && $(el.next()[0]).attr('wlxml-tag') === 'span';
+
+
+                    var addInfo = function(toAdd, where) {
+                        var parentContents = elParent.contents(),
+                            idx = parentContents.index(el[0]),
+                            prev = idx > 0 ? parentContents[idx-1] : null,
+                            next = idx < parentContents.length - 1 ? parentContents[idx+1] : null,
+                            target, key;
+
+                        if(where === 'above') {
+                            target = prev ? $(prev) : elParent;
+                            key = prev ? 'orig-after' : 'orig-begin';
+                        } else if(where === 'below') {
+                            target = next ? $(next) : elParent;
+                            key = next ? 'orig-before' : 'orig-end';
+                        } else { throw new Object;}
+
+                        target.data(key, toAdd);
                     }
 
-                    if(spanParent || spanBefore || spanAfter) {
-                        var startSpace = /\s/g.test(this.data.substr(0,1));
-                        var endSpace = /\s/g.test(this.data.substr(-1)) && this.data.length > 1;
-                        var trimmed = $.trim(this.data);
-                        var newText = (startSpace && (spanParent || spanBefore) ? ' ' : '')
-                                    + trimmed
-                                    + (endSpace && (spanParent || spanAfter) ? ' ' : '');
-                        if(newText !== oldText) {
-                            this.data = newText;
-                            addInfo();
-                        }
+                    text.transformed = text.trimmed;
+                    
+                    if(hasSpanParent || hasSpanBefore || hasSpanAfter) {
+                        var startSpace = /\s/g.test(text.original.substr(0,1)),
+                            endSpace = /\s/g.test(text.original.substr(-1)) && text.original.length > 1;
+                        text.transformed = (startSpace && (hasSpanParent || hasSpanBefore) ? ' ' : '')
+                                    + text.trimmed
+                                    + (endSpace && (hasSpanParent || hasSpanAfter) ? ' ' : '');
                     } else {
+                        if(text.trimmed.length === 0 && text.original.length > 0 && elParent.contents().length === 1)
+                            text.transformed = ' ';
+                    }
 
-                        this.data = $.trim(this.data);
-                        if(this.data.length === 0 && oldLength > 0 && el.parent().contents().length === 1)
-                            this.data = ' ';
-                        if(this.data.length === 0) {
-                            addInfo();
-                            el.remove();
+                    if(!text.transformed) {
+                        addInfo(text.original, 'below');
+                        el.remove();
+                        return true; // continue
+                    }
 
-                            return true; // continue
+                    if(text.transformed !== text.original) {
+                        if(!text.trimmed) {
+                            addInfo(text.original, 'below');
+                        } else {
+                            var startingMatch = text.original.match(/^\s+/g),
+                                endingMatch = text.original.match(/\s+$/g),
+                                startingWhiteSpace = startingMatch ? startingMatch[0] : null,
+                                endingWhiteSpace = endingMatch ? endingMatch[0] : null;
+
+                            if(endingWhiteSpace) {
+                                if(text.transformed[text.transformed.length - 1] === ' ' && endingWhiteSpace[0] === ' ')
+                                    endingWhiteSpace = endingWhiteSpace.substr(1);
+                                addInfo(endingWhiteSpace, 'below');
+                            }
+
+                            if(startingWhiteSpace) {
+                                if(text.transformed[0] === ' ' && startingWhiteSpace[startingWhiteSpace.length-1] === ' ')
+                                    startingWhiteSpace = startingWhiteSpace.substr(0, startingWhiteSpace.length -1);
+                                addInfo(startingWhiteSpace, 'above');
+                            }
                         }
                     }
 
-                    var element = documentElement.DocumentTextElement.create({text: this.data});
-                    $(this).replaceWith(element.dom());
+                    var element = documentElement.DocumentTextElement.create({text: text.transformed});
+                    el.replaceWith(element.dom());
                 });
             
             this.d = this.wrapper.children(0);
@@ -302,20 +325,9 @@ $.extend(Canvas.prototype, {
     },
 
     toXML: function() {
-        var d = function(element, parent, level) {
-            console.log(element.getText ? 'text: ' + element.getText() : 'node: ' + element.getWlxmlTag());
-            var isElementNode = element instanceof documentElement.DocumentNodeElement;
-            parent.prepend(element.toXML(level));
-            if(isElementNode) {
-                var dom = $(parent.children()[0]),
-                    elementChildren = element.children();
-                for(var i = elementChildren.length - 1; i >= 0; i--) {
-                    d(elementChildren[i], dom, level + 1);
-                }
-            }
-        }
-        var parent = $('<div>');
-        d(this.doc(), parent, 0);
+        var parent = $('<div>'),
+            parts = this.doc().toXML(0);
+        parent.append(parts);
         return parent.html();
     }
 });