X-Git-Url: https://git.mdrn.pl/fnpeditor.git/blobdiff_plain/2ec50c1931fa2337309067dd1b4ee0a3aeaaaa8f..275952d30bfcd6f5aecc2710a0df0cd489ea71f6:/src/smartxml/smartxml.js

diff --git a/src/smartxml/smartxml.js b/src/smartxml/smartxml.js
index 43e3041..6f4677b 100644
--- a/src/smartxml/smartxml.js
+++ b/src/smartxml/smartxml.js
@@ -1,69 +1,196 @@
 define([
-    'libs/jquery'
-], function($) {
+    'libs/jquery',
+    'libs/underscore',
+    'libs/backbone',
+    'smartxml/events'
+], function($, _, Backbone, events) {
     
 'use strict';
 
 
-var TEXT_NODE = Node.TEXT_NODE, ELEMENT_NODE = Node.ELEMENT_NODE;
+var TEXT_NODE = Node.TEXT_NODE;
 
-var parseXML = function(xml) {
-    return $(xml)[0];
-};
-
-var Document = function(nativeNode) {
-    var $document = $(nativeNode);
 
-
-    Object.defineProperty(this, 'root', {get: function() { return new ElementNode($document[0]);}});
+var INSERTION = function(implementation) {
+    var toret = function(node) {
+        var insertion = this.getNodeInsertion(node);
+        implementation.call(this, insertion.ofNode.nativeNode);
+        this.triggerChangeEvent(insertion.insertsNew ? 'nodeAdded' : 'nodeMoved', {node: insertion.ofNode});
+        return insertion.ofNode;
+    };
+    return toret;
 };
 
+var DocumentNode = function(nativeNode, document) {
+    if(!document) {
+        throw new Error('undefined document for a node');
+    }
+    this.document = document;
+    this._setNativeNode(nativeNode);
 
-var DocumentNode = function(nativeNode) {
-    this.nativeNode = nativeNode;
-    this._$ = $(nativeNode);
 };
 
 $.extend(DocumentNode.prototype, {
-    detach: function() { this._$.detach(); },
+    _setNativeNode: function(nativeNode) {
+        this.nativeNode = nativeNode;
+        this._$ = $(nativeNode);
+    },
+
+    isRoot: function() {
+        return this.document.root.sameNode(this);
+    },
+
+    detach: function() {
+        var parent = this.parent();
+        this._$.detach();
+        this.triggerChangeEvent('nodeDetached', {parent: parent});
+        return this;
+    },
 
     sameNode: function(otherNode) {
-        return this.nativeNode === otherNode.nativeNode;
+        return otherNode && this.nativeNode === otherNode.nativeNode;
     },
 
     parent: function() {
-        return this.nativeNode.parentNode ? new ElementNode(this.nativeNode.parentNode) : null;
+        var parentNode = this.nativeNode.parentNode;
+        if(parentNode && parentNode.nodeType === Node.ELEMENT_NODE) {
+            return this.document.createDocumentNode(parentNode);
+        }
+        return null;
+    },
+
+    parents: function() {
+        var parent = this.parent(),
+            parents = parent ? parent.parents() : [];
+        if(parent) {
+            parents.unshift(parent);
+        }
+        return parents;
+    },
+
+    prev: function() {
+        var myIdx = this.getIndex();
+        return myIdx > 0 ? this.parent().contents()[myIdx-1] : null;
+    },
+
+    next: function() {
+        if(this.isRoot()) {
+            return null;
+        }
+        var myIdx = this.getIndex(),
+            parentContents = this.parent().contents();
+        return myIdx < parentContents.length - 1 ? parentContents[myIdx+1] : null;
     },
 
-    before: function(node) {
-        this._$.before(node.nativeNode);
+    isSurroundedByTextElements: function() {
+        var prev = this.prev(),
+            next = this.next();
+        return prev && (prev.nodeType === Node.TEXT_NODE) && next && (next.nodeType === Node.TEXT_NODE);
     },
 
+    after: INSERTION(function(nativeNode) {
+        return this._$.after(nativeNode);
+    }),
+
+    before: INSERTION(function(nativeNode) {
+        return this._$.before(nativeNode);
+    }),
+
     wrapWith: function(node) {
-        if(this.parent())
-            this.before(node);
-        node.append(this);
+        var insertion = this.getNodeInsertion(node);
+        if(this.parent()) {
+            this.before(insertion.ofNode);
+        }
+        insertion.ofNode.append(this);
+        return insertion.ofNode;
+    },
+
+    /**
+    * Removes parent of a node if node has no siblings.
+    */
+    unwrap: function() {
+        if(this.isRoot()) {
+            return;
+        }
+        var parent = this.parent(),
+            grandParent;
+        if(parent.contents().length === 1) {
+            grandParent = parent.parent();
+            parent.unwrapContent();
+            return grandParent;
+        }
     },
+
+    triggerChangeEvent: function(type, metaData) {
+        var event = new events.ChangeEvent(type, $.extend({node: this}, metaData || {}));
+        if(type === 'nodeDetached' || this.document.containsNode(event.meta.node)) {
+            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.createDocumentNode(node);
+          insertion.insertsNew = true;
+        }
+        return insertion;
+    },
+
+    getIndex: function() {
+        if(this.isRoot()) {
+            return 0;
+        }
+        return this.parent().indexOf(this);
+    }
 });
 
-var ElementNode = function(nativeNode) {
-    DocumentNode.apply(this, arguments);
+var ElementNode = function(nativeNode, document) {
+    DocumentNode.call(this, nativeNode, document);
 };
+ElementNode.prototype = Object.create(DocumentNode.prototype);
 
-$.extend(ElementNode.prototype, DocumentNode.prototype, {
+$.extend(ElementNode.prototype, {
     nodeType: Node.ELEMENT_NODE,
 
+    detach: function() {
+        var next;
+        if(parent && this.isSurroundedByTextElements()) {
+            next = this.next();
+            this.prev().appendText(next.getText());
+            next.detach();
+        }
+        return DocumentNode.prototype.detach.call(this);
+    },
+
+    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();
+    },
+
     getTagName: function() {
         return this.nativeNode.tagName.toLowerCase();
     },
 
     contents: function() {
-        var toret = [];
+        var toret = [],
+            document = this.document;
         this._$.contents().each(function() {
-            if(this.nodeType === Node.ELEMENT_NODE)
-                toret.push(new ElementNode(this));
-            else if(this.nodeType === Node.TEXT_NODE)
-                toret.push(new TextNode(this));
+            toret.push(document.createDocumentNode(this));
         });
         return toret;
     },
@@ -72,34 +199,73 @@ $.extend(ElementNode.prototype, DocumentNode.prototype, {
         return this._$.contents().index(node._$);
     },
 
+    setTag: function(tagName) {
+        var node = this.document.createDocumentNode({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) {
+    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});
+        }
     },
 
-    append: function(documentNode) {
-        this._$.append(documentNode.nativeNode);
+    getAttrs: function() {
+        var toret = [];
+        for(var i = 0; i < this.nativeNode.attributes.length; i++) {
+            toret.push(this.nativeNode.attributes[i]);
+        }
+        return toret;
     },
 
+    append: INSERTION(function(nativeNode) {
+        this._$.append(nativeNode);
+    }),
+
+    prepend: INSERTION(function(nativeNode) {
+        this._$.prepend(nativeNode);
+    }),
+
     unwrapContent: function() {
         var parent = this.parent();
-        if(!parent)
+        if(!parent) {
             return;
+        }
 
-        var parentContents = parent.contents(),
-            myContents = this.contents(),
+        var myContents = this.contents(),
             myIdx = parent.indexOf(this);
 
-        if(myContents.length === 0)
+
+        if(myContents.length === 0) {
             return this.detach();
+        }
 
-        var moveLeftRange, moveRightRange, leftMerged;
+        var prev = this.prev(),
+            next = this.next(),
+            moveLeftRange, moveRightRange, leftMerged;
 
-        if(myIdx > 0 && (parentContents[myIdx-1].nodeType === TEXT_NODE) && (myContents[0].nodeType === TEXT_NODE)) {
-            parentContents[myIdx-1].appendText(myContents[0].getText());
+        if(prev && (prev.nodeType === TEXT_NODE) && (myContents[0].nodeType === TEXT_NODE)) {
+            prev.appendText(myContents[0].getText());
             myContents[0].detach();
             moveLeftRange = true;
             leftMerged = true;
@@ -108,9 +274,10 @@ $.extend(ElementNode.prototype, DocumentNode.prototype, {
         }
 
         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();
+            var lastContents = _.last(myContents);
+            if(next && (next.nodeType === TEXT_NODE) && (lastContents.nodeType === TEXT_NODE)) {
+                next.prependText(lastContents.getText());
+                lastContents.detach();
                 moveRightRange = true;
             }
         }
@@ -126,39 +293,292 @@ $.extend(ElementNode.prototype, DocumentNode.prototype, {
             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) {
-    DocumentNode.apply(this, arguments);
+var TextNode = function(nativeNode, document) {
+    DocumentNode.call(this, nativeNode, document);
 };
+TextNode.prototype = Object.create(DocumentNode.prototype);
 
-$.extend(TextNode.prototype, DocumentNode.prototype, {
+$.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);
+        }
+    },
+
+    split: function(params) {
+        var parentElement = this.parent(),
+            passed = false,
+            succeedingChildren = [],
+            prefix = this.getText().substr(0, params.offset),
+            suffix = this.getText().substr(params.offset);
+
+        parentElement.contents().forEach(function(child) {
+            if(passed) {
+                succeedingChildren.push(child);
+            }
+            if(child.sameNode(this)) {
+                passed = true;
+            }
+        }.bind(this));
+
+        if(prefix.length > 0) {
+            this.setText(prefix);
+        }
+        else {
+            this.detach();
+        }
+
+        var attrs = {};
+        parentElement.getAttrs().forEach(function(attr) {attrs[attr.name] = attr.value; });
+        var newElement = this.document.createDocumentNode({tagName: parentElement.getTagName(), attrs: attrs});
+        parentElement.after(newElement);
+
+        if(suffix.length > 0) {
+            newElement.append({text: suffix});
+        }
+        succeedingChildren.forEach(function(child) {
+            newElement.append(child);
+        });
+
+        return {first: parentElement, second: newElement};
+    },
+
+    triggerTextChangeEvent: function() {
+        var event = new events.ChangeEvent('nodeTextChange', {node: this});
+        this.document.trigger('change', event);
     }
 });
 
 
+var parseXML = function(xml) {
+    return $($.trim(xml))[0];
+};
+
+var Document = function(xml) {
+    this.loadXML(xml);
+};
+
+$.extend(Document.prototype, Backbone.Events, {
+    ElementNodeFactory: ElementNode,
+    TextNodeFactory: TextNode,
+
+    createDocumentNode: function(from) {
+        if(!(from instanceof Node)) {
+            if(from.text !== undefined) {
+                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);
+    },
+
+    loadXML: function(xml, options) {
+        options = options || {};
+        defineDocumentProperties(this, $(parseXML(xml)));
+        if(!options.silent) {
+            this.trigger('contentSet');
+        }
+    },
+
+    toXML: function() {
+        return this.root.toXML();
+    },
+
+    containsNode: function(node) {
+        return this.root && (node.nativeNode === this.root.nativeNode || node._$.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.createDocumentNode({
+                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;
+    },
+
+    getSiblingParents: function(params) {
+        var parents1 = [params.node1].concat(params.node1.parents()).reverse(),
+            parents2 = [params.node2].concat(params.node2.parents()).reverse(),
+            noSiblingParents = null;
+
+        if(parents1.length === 0 || parents2.length === 0 || !(parents1[0].sameNode(parents2[0]))) {
+            return noSiblingParents;
+        }
+
+        var i;
+        for(i = 0; i < Math.min(parents1.length, parents2.length); i++) {
+            if(parents1[i].sameNode(parents2[i])) {
+                continue;
+            }
+            break;
+        }
+        return {node1: parents1[i], node2: parents2[i]};
+    },
+
+    _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.createDocumentNode({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;
+    },
+
+    trigger: function() {
+        //console.log('trigger: ' + arguments[0] + (arguments[1] ? ', ' + arguments[1].type : ''));
+        Backbone.Events.trigger.apply(this, arguments);
+    }
+});
+
+var defineDocumentProperties = function(doc, $document) {
+    Object.defineProperty(doc, 'root', {get: function() {
+        return doc.createDocumentNode($document[0]);
+    }, configurable: true});
+    Object.defineProperty(doc, 'dom', {get: function() {
+        return $document[0];
+    }, configurable: true});
+};
+
 return {
     documentFromXML: function(xml) {
-        return new Document(parseXML(xml));
+        return new Document(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