smartxml: DocumentElement.parents

[fnpeditor.git] / src / smartxml / smartxml.js

diff --git a/src/smartxml/smartxml.js b/src/smartxml/smartxml.js
index 0c76cd2..9a402cf 100644 (file)
--- a/src/smartxml/smartxml.js
+++ b/src/smartxml/smartxml.js
@@ -1,60 +1,476 @@
 define([
 define([

-    'libs/jquery'
-], function($) {
+    'libs/jquery',
+    'libs/underscore',
+    'libs/backbone',
+    'smartxml/events'
+], function($, _, Backbone, events) {

     
 'use strict';
 
 
     
 'use strict';
 
 

-var parseXML = function(xml) {
-    return $(xml)[0];
-}
+var TEXT_NODE = Node.TEXT_NODE;
+
+
+var DocumentNode = function(nativeNode, document) {
+    if(!document) {
+        throw new Error('undefined document for a node');
+    }
+    this.document = document;
+    this._setNativeNode(nativeNode);
+
+};
+
+$.extend(DocumentNode.prototype, {
+    _setNativeNode: function(nativeNode) {
+        this.nativeNode = nativeNode;
+        this._$ = $(nativeNode);
+    },
+
+    detach: function() {
+        var parent = this.parent();
+        this._$.detach();
+        this.triggerChangeEvent('nodeDetached', {parent: parent});
+        return this;
+    },
+
+    sameNode: function(otherNode) {
+        return otherNode && this.nativeNode === otherNode.nativeNode;
+    },
+
+    parent: function() {
+        var parentNode = this.nativeNode.parentNode;
+        if(parentNode && parentNode.nodeType === Node.ELEMENT_NODE) {
+            return this.document.createElementNode(parentNode);
+        }
+        return null;
+    },
+
+    parents: function() {
+        var parent = this.parent(),
+            parents = parent ? parent.parents() : [];
+        if(parent) {
+            parents.unshift(parent);
+        }
+        return parents;
+    },

 
 

-var Document = function(nativeNode) {
-    var $document = $(nativeNode);
+    after: function(node) {
+        var insertion = this.getNodeInsertion(node);
+        this._$.after(insertion.ofNode.nativeNode);
+        this.triggerChangeEvent(insertion.insertsNew ? 'nodeAdded' : 'nodeMoved', {node: insertion.ofNode});
+        return insertion.ofNode;
+    },

 
 

+    before: function(node) {
+        var insertion = this.getNodeInsertion(node);
+        this._$.before(insertion.ofNode.nativeNode);
+        this.triggerChangeEvent(insertion.insertsNew ? 'nodeAdded' : 'nodeMoved', {node: insertion.ofNode});
+        return insertion.ofNode;
+    },

 
 

-    Object.defineProperty(this, 'root', {get: function() { return new ElementNode($document[0])}}); 
-}
+    wrapWith: function(node) {
+        node = node instanceof ElementNode ? node : this.document.createElementNode(node);

 
 

+        if(this.parent()) {
+            this.before(node);
+        }
+        node.append(this);
+        return node;
+    },

 
 

-var ElementNode = function(nativeNode) {
-    this.nativeNode = nativeNode;
-    this._$ = $(nativeNode);
+    triggerChangeEvent: function(type, metaData) {
+        var event = new events.ChangeEvent(type, $.extend({node: this}, metaData || {}));
+        this.document.trigger('change', event);
+    },
+    
+    getNodeInsertion: function(node) {
+        var insertion = {};
+        if(node instanceof DocumentNode) {
+            insertion.ofNode = node;
+            insertion.insertsNew = !this.document.containsNode(node);
+        } else {
+          insertion.ofNode = this.document.createElementNode(node);
+          insertion.insertsNew = true;
+        }
+        return insertion;
+    },
+
+    getIndex: function() {
+        return this.parent().indexOf(this);
+    }
+});
+
+var ElementNode = function(nativeNode, document) {
+    DocumentNode.call(this, nativeNode, document);

 };
 };

+ElementNode.prototype = Object.create(DocumentNode.prototype);

 
 $.extend(ElementNode.prototype, {
 
 $.extend(ElementNode.prototype, {

-    getTagName: function() {
-        return this.nativeNode.tagName.toLowerCase();
+    nodeType: Node.ELEMENT_NODE,
+
+    setData: function(key, value) {
+        if(value !== undefined) {
+            this._$.data(key, value);
+        } else {
+            this._$.removeData(_.keys(this._$.data()));
+            this._$.data(key);
+        }
+    },
+
+    getData: function(key) {
+        if(key) {
+            return this._$.data(key);
+        }
+        return this._$.data();

     },
 
     },
 

-    append: function(documentNode) {
-        this._$.append(documentNode.nativeNode);
+    getTagName: function() {
+        return this.nativeNode.tagName.toLowerCase();

     },
 
     contents: function() {
     },
 
     contents: function() {

-        var toret = [];
+        var toret = [],
+            document = this.document;

         this._$.contents().each(function() {
         this._$.contents().each(function() {

-            if(this.nodeType === Node.ELEMENT_NODE)
-                toret.push(new ElementNode(this));
+            if(this.nodeType === Node.ELEMENT_NODE) {
+                toret.push(document.createElementNode(this));
+            }
+            else if(this.nodeType === Node.TEXT_NODE) {
+                toret.push(document.createTextNode(this));
+            }

         });
         return toret;
     },
 
         });
         return toret;
     },
 

+    indexOf: function(node) {
+        return this._$.contents().index(node._$);
+    },

 
 

-    sameNode: function(otherNode) {
-        return this.nativeNode === otherNode.nativeNode;
+    setTag: function(tagName) {
+        var node = this.document.createElementNode({tagName: tagName}),
+            oldTagName = this.getTagName(),
+            myContents = this._$.contents();
+
+        this.getAttrs().forEach(function(attribute) {
+            node.setAttr(attribute.name, attribute.value, true);
+        });
+        node.setData(this.getData());
+
+        if(this.sameNode(this.document.root)) {
+            defineDocumentProperties(this.document, node._$);
+        }
+        this._$.replaceWith(node._$);
+        this._setNativeNode(node._$[0]);
+        this._$.append(myContents);
+        this.triggerChangeEvent('nodeTagChange', {oldTagName: oldTagName, newTagName: this.getTagName()});
+    },
+
+    getAttr: function(name) {
+        return this._$.attr(name);
+    },
+
+    setAttr: function(name, value, silent) {
+        var oldVal = this.getAttr(name);
+        this._$.attr(name, value);
+        if(!silent) {
+            this.triggerChangeEvent('nodeAttrChange', {attr: name, oldVal: oldVal, newVal: value});
+        }
+    },
+
+    getAttrs: function() {
+        var toret = [];
+        for(var i = 0; i < this.nativeNode.attributes.length; i++) {
+            toret.push(this.nativeNode.attributes[i]);
+        }
+        return toret;
+    },
+
+    append: function(node) {
+        var insertion = this.getNodeInsertion(node);
+        this._$.append(insertion.ofNode.nativeNode);
+        this.triggerChangeEvent(insertion.insertsNew ? 'nodeAdded' : 'nodeMoved', {node: insertion.ofNode});
+        return insertion.ofNode;
+    },
+
+    prepend: function(node) {
+        var insertion = this.getNodeInsertion(node);
+        this._$.prepend(insertion.ofNode.nativeNode);
+        this.triggerChangeEvent(insertion.insertsNew ? 'nodeAdded' : 'nodeMoved', {node: insertion.ofNode});
+        return insertion.ofNode;
+    },
+
+    unwrapContent: function() {
+        var parent = this.parent();
+        if(!parent) {
+            return;
+        }
+
+        var parentContents = parent.contents(),
+            myContents = this.contents(),
+            myIdx = parent.indexOf(this);
+
+        if(myContents.length === 0) {
+            return this.detach();
+        }
+
+        var moveLeftRange, moveRightRange, leftMerged;
+
+        if(myIdx > 0 && (parentContents[myIdx-1].nodeType === TEXT_NODE) && (myContents[0].nodeType === TEXT_NODE)) {
+            parentContents[myIdx-1].appendText(myContents[0].getText());
+            myContents[0].detach();
+            moveLeftRange = true;
+            leftMerged = true;
+        } else {
+            leftMerged = false;
+        }
+
+        if(!(leftMerged && myContents.length === 1)) {
+            if(myIdx < parentContents.length - 1 && (parentContents[myIdx+1].nodeType === TEXT_NODE) && (myContents[myContents.length-1].nodeType === TEXT_NODE)) {
+                parentContents[myIdx+1].prependText(myContents[myContents.length-1].getText());
+                myContents[myContents.length-1].detach();
+                moveRightRange = true;
+            }
+        }
+
+        var childrenLength = this.contents().length;
+        this.contents().forEach(function(child) {
+            this.before(child);
+        }.bind(this));
+
+        this.detach();
+
+        return {
+            element1: parent.contents()[myIdx + (moveLeftRange ? -1 : 0)],
+            element2: parent.contents()[myIdx + childrenLength-1 + (moveRightRange ? 1 : 0)]
+        };
+    },
+
+    wrapText: function(params) {
+        return this.document._wrapText(_.extend({inside: this}, params));
+    },
+
+    toXML: function() {
+        var wrapper = $('<div>');
+        wrapper.append(this._getXMLDOMToDump());
+        return wrapper.html();
+    },
+    
+    _getXMLDOMToDump: function() {
+        return this._$;
+    }
+});
+
+var TextNode = function(nativeNode, document) {
+    DocumentNode.call(this, nativeNode, document);
+};
+TextNode.prototype = Object.create(DocumentNode.prototype);
+
+$.extend(TextNode.prototype, {
+    nodeType: Node.TEXT_NODE,
+
+    getText: function() {
+        return this.nativeNode.data;
+    },
+
+    setText: function(text) {
+        this.nativeNode.data = text;
+        this.triggerTextChangeEvent();
+    },
+
+    appendText: function(text) {
+        this.nativeNode.data = this.nativeNode.data + text;
+        this.triggerTextChangeEvent();
+    },
+
+    prependText: function(text) {
+        this.nativeNode.data = text + this.nativeNode.data;
+        this.triggerTextChangeEvent();
+    },
+
+    wrapWith: function(desc) {
+        if(typeof desc.start === 'number' && typeof desc.end === 'number') {
+            return this.document._wrapText({
+                inside: this.parent(),
+                textNodeIdx: this.parent().indexOf(this),
+                offsetStart: Math.min(desc.start, desc.end),
+                offsetEnd: Math.max(desc.start, desc.end),
+                _with: {tagName: desc.tagName, attrs: desc.attrs}
+            });
+        } else {
+            return DocumentNode.prototype.wrapWith.call(this, desc);
+        }
+    },
+
+    triggerTextChangeEvent: function() {
+        var event = new events.ChangeEvent('nodeTextChange', {node: this});
+        this.document.trigger('change', event);

     }
     }

+});
+
+
+var parseXML = function(xml) {
+    return $(xml)[0];
+};
+
+var Document = function(xml) {
+    this.loadXML(xml);
+};
+
+$.extend(Document.prototype, Backbone.Events, {
+    ElementNodeFactory: ElementNode,
+    TextNodeFactory: TextNode,
+
+    createElementNode: function(from) {
+        if(!(from instanceof HTMLElement)) {
+            if(from.text) {
+                from = document.createTextNode(from.text);
+            } else {
+                var node = $('<' + from.tagName + '>');
+
+                _.keys(from.attrs || {}).forEach(function(key) {
+                    node.attr(key, from.attrs[key]);
+                });
+
+                from = node[0];
+            }
+        }
+        var Factory;
+        if(from.nodeType === Node.TEXT_NODE) {
+            Factory = this.TextNodeFactory;
+        } else if(from.nodeType === Node.ELEMENT_NODE) {
+            Factory = this.ElementNodeFactory;
+        }
+        return new Factory(from, this);
+    },
+
+    createTextNode: function(nativeNode) {
+        return new this.TextNodeFactory(nativeNode, this);
+    },
+
+    loadXML: function(xml, options) {
+        options = options || {};
+        defineDocumentProperties(this, $(parseXML(xml)));
+        if(!options.silent) {
+            this.trigger('contentSet');
+        }
+    },
+
+    toXML: function() {
+        return this.root.toXML();
+    },
+
+    containsNode: function(node) {
+        return node._$.parents().index(this.root._$) !== -1;
+    },
+
+    wrapNodes: function(params) {
+        if(!(params.element1.parent().sameNode(params.element2.parent()))) {
+            throw new Error('Wrapping non-sibling nodes not supported.');
+        }
+
+        var parent = params.element1.parent(),
+            parentContents = parent.contents(),
+            wrapper = this.createElementNode({
+                tagName: params._with.tagName,
+                attrs: params._with.attrs}),
+            idx1 = parent.indexOf(params.element1),
+            idx2 = parent.indexOf(params.element2);
+
+        if(idx1 > idx2) {
+            var tmp = idx1;
+            idx1 = idx2;
+            idx2 = tmp;
+        }
+
+        var insertingMethod, insertingTarget;
+        if(idx1 === 0) {
+            insertingMethod = 'prepend';
+            insertingTarget = parent;
+        } else {
+            insertingMethod = 'after';
+            insertingTarget = parentContents[idx1-1];
+        }
+
+        for(var i = idx1; i <= idx2; i++) {
+            wrapper.append(parentContents[i].detach());
+        }
+
+        insertingTarget[insertingMethod](wrapper);
+        return wrapper;
+    },

 
 

+    _wrapText: function(params) {
+        params = _.extend({textNodeIdx: 0}, params);
+        if(typeof params.textNodeIdx === 'number') {
+            params.textNodeIdx = [params.textNodeIdx];
+        }
+        
+        var contentsInside = params.inside.contents(),
+            idx1 = Math.min.apply(Math, params.textNodeIdx),
+            idx2 = Math.max.apply(Math, params.textNodeIdx),
+            textNode1 = contentsInside[idx1],
+            textNode2 = contentsInside[idx2],
+            sameNode = textNode1.sameNode(textNode2),
+            prefixOutside = textNode1.getText().substr(0, params.offsetStart),
+            prefixInside = textNode1.getText().substr(params.offsetStart),
+            suffixInside = textNode2.getText().substr(0, params.offsetEnd),
+            suffixOutside = textNode2.getText().substr(params.offsetEnd)
+        ;
+
+        if(!(textNode1.parent().sameNode(textNode2.parent()))) {
+            throw new Error('Wrapping text in non-sibling text nodes not supported.');
+        }
+        
+        var wrapperElement = this.createElementNode({tagName: params._with.tagName, attrs: params._with.attrs});
+        textNode1.after(wrapperElement);
+        textNode1.detach();
+        
+        if(prefixOutside.length > 0) {
+            wrapperElement.before({text:prefixOutside});
+        }
+        if(sameNode) {
+            var core = textNode1.getText().substr(params.offsetStart, params.offsetEnd - params.offsetStart);
+            wrapperElement.append({text: core});
+        } else {
+            textNode2.detach();
+            if(prefixInside.length > 0) {
+                wrapperElement.append({text: prefixInside});
+            }
+            for(var i = idx1 + 1; i < idx2; i++) {
+                wrapperElement.append(contentsInside[i]);
+            }
+            if(suffixInside.length > 0) {
+                wrapperElement.append({text: suffixInside});
+            }
+        }
+        if(suffixOutside.length > 0) {
+            wrapperElement.after({text: suffixOutside});
+        }
+        return wrapperElement;
+    }

 });
 
 });
 

+var defineDocumentProperties = function(doc, $document) {
+    Object.defineProperty(doc, 'root', {get: function() {
+        return doc.createElementNode($document[0]);
+    }, configurable: true});
+    Object.defineProperty(doc, 'dom', {get: function() {
+        return $document[0];
+    }, configurable: true});
+};
+

 return {
     documentFromXML: function(xml) {
         return new Document(parseXML(xml));
     },
 
     elementNodeFromXML: function(xml) {
 return {
     documentFromXML: function(xml) {
         return new Document(parseXML(xml));
     },
 
     elementNodeFromXML: function(xml) {

-        return new ElementNode(parseXML(xml));
-    }
+        return this.documentFromXML(xml).root;
+    },
+
+    Document: Document,
+    DocumentNode: DocumentNode,
+    ElementNode: ElementNode

 };
 
 });
\ No newline at end of file
 };
 
 });
\ No newline at end of file