From bc9bfb6025e826b0ee6c827f1a356995d7f05d4c Mon Sep 17 00:00:00 2001
From: =?utf8?q?Ulrich-Matthias=20Sch=C3=A4fer?= <ulima.ums@googlemail.com>
Date: Mon, 10 Jul 2017 13:51:06 +0200
Subject: [PATCH] use `children` instead of `childNodes` (#710), renamed
 `previous()` to `prev()`

---
 CHANGELOG.md         |  2 ++
 dist/svg.js          | 40 +++++++++++++++++++---------------------
 dist/svg.min.js      |  4 ++--
 spec/spec/arrange.js |  8 ++++----
 src/arrange.js       |  2 +-
 src/element.js       |  8 +++-----
 src/flatten.js       |  2 +-
 src/helpers.js       |  5 ++---
 src/parent.js        | 14 +++++++-------
 src/text.js          | 11 ++++++-----
 10 files changed, 47 insertions(+), 49 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index c8a4e5d..c4109f0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -46,6 +46,8 @@ The document follows the conventions described in [“Keep a CHANGELOG”](http:
 - `SVG.Text.textPath()` now returns all textPaths in the text element (#705)
 - renamed `SVG.Stop` constructor `at()` on `SVG.Gradient` to `stop()` (#707)
 - renamed `fill()` method on `SVG.Gradient` and `SVG.Pattern` to `url()` (#708)
+- renamed `previous()` method to `prev()`
+- changed `childNodes` to `children` (same for `firstChild`, `lastChild`, ...) (#710)
 
 ### Fixed
 - fixed a bug in clipping and masking where empty nodes persists after removal -> __TODO!__
diff --git a/dist/svg.js b/dist/svg.js
index c04b972..53f7feb 100644
--- a/dist/svg.js
+++ b/dist/svg.js
@@ -6,7 +6,7 @@
 * @copyright Wout Fierens <wout@mick-wout.com>
 * @license MIT
 *
-* BUILT: Fri Jul 07 2017 13:43:21 GMT+0200 (Mitteleuropäische Sommerzeit)
+* BUILT: Mon Jul 10 2017 13:46:12 GMT+0200 (Mitteleuropäische Sommerzeit)
 */;
 (function(root, factory) {
   /* istanbul ignore next */
@@ -1229,11 +1229,9 @@ SVG.Element = SVG.invent({
         well.innerHTML = svg
 
         // transplant nodes
-        for (len = well.childNodes.length;len--;)
-          if(well.firstChild.nodeType != 1)
-            well.removeChild(well.firstChild)
-          else
-            this.node.appendChild(well.firstChild)
+        for (len = well.children.length;len--;) {
+          this.node.appendChild(well.firstElementChild)
+        }
 
       // otherwise act as a getter
       } else {
@@ -2963,7 +2961,7 @@ SVG.Parent = SVG.invent({
 , extend: {
     // Returns all child elements
     children: function() {
-      return SVG.utils.map(SVG.utils.filterSVGElements(this.node.childNodes), function(node) {
+      return SVG.utils.map(this.node.children, function(node) {
         return SVG.adopt(node)
       })
     }
@@ -2971,8 +2969,8 @@ SVG.Parent = SVG.invent({
   , add: function(element, i) {
       if (i == null)
         this.node.appendChild(element.node)
-      else if (element.node != this.node.childNodes[i])
-        this.node.insertBefore(element.node, this.node.childNodes[i])
+      else if (element.node != this.node.children[i])
+        this.node.insertBefore(element.node, this.node.children[i])
 
       return this
     }
@@ -2987,11 +2985,11 @@ SVG.Parent = SVG.invent({
     }
     // Gets index of given element
   , index: function(element) {
-      return [].slice.call(this.node.childNodes).indexOf(element.node)
+      return [].slice.call(this.node.children).indexOf(element.node)
     }
     // Get a element at the given index
   , get: function(i) {
-      return SVG.adopt(this.node.childNodes[i])
+      return SVG.adopt(this.node.children[i])
     }
     // Get first child
   , first: function() {
@@ -2999,7 +2997,7 @@ SVG.Parent = SVG.invent({
     }
     // Get the last child
   , last: function() {
-      return this.get(this.node.childNodes.length - 1)
+      return this.get(this.node.children.length - 1)
     }
     // Iterates over all children and invokes a given block
   , each: function(block, deep) {
@@ -3010,7 +3008,7 @@ SVG.Parent = SVG.invent({
         if (children[i] instanceof SVG.Element)
           block.apply(children[i], [i, children])
 
-        if (deep && (children[i] instanceof SVG.Container))
+        if (deep && (children[i] instanceof SVG.Parent))
           children[i].each(block, deep)
       }
 
@@ -3054,7 +3052,7 @@ SVG.extend(SVG.Parent, {
     })
 
     // we need this so that SVG.Doc does not get removed
-    this.node.firstChild || this.remove()
+    this.node.firstElementChild || this.remove()
 
     return this
   }
@@ -3292,7 +3290,7 @@ SVG.extend(SVG.Element, {
     return this.siblings()[this.position() + 1]
   }
   // Get the next element (will return null if there is none)
-, previous: function() {
+, prev: function() {
     return this.siblings()[this.position() - 1]
   }
   // Send given element one step forward
@@ -4212,10 +4210,11 @@ SVG.Text = SVG.invent({
     // Set the text content
   , text: function(text) {
       // act as getter
-      if (typeof text === 'undefined'){
+      if (text === undefined){
         var text = ''
-        var children = this.node.childNodes
-        var firstLine = 0
+          , children = this.node.childNodes
+          , firstLine = 0
+
         for(var i = 0, len = children.length; i < len; ++i){
           // skip textPaths - they are no lines
           if(children[i].nodeName == 'textPath') {
@@ -4984,9 +4983,8 @@ function arrayToString(a) {
 // Deep new id assignment
 function assignNewId(node) {
   // do the same for SVG child nodes as well
-  for (var i = node.childNodes.length - 1; i >= 0; i--)
-    if (node.childNodes[i] instanceof window.SVGElement)
-      assignNewId(node.childNodes[i])
+  for (var i = node.children.length - 1; i >= 0; i--)
+    assignNewId(node.children[i])
 
   if(node.id)
     return SVG.adopt(node).id(SVG.eid(node.nodeName))
diff --git a/dist/svg.min.js b/dist/svg.min.js
index 3ba1959..15a0682 100644
--- a/dist/svg.min.js
+++ b/dist/svg.min.js
@@ -1,2 +1,2 @@
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b.Number(e)})},to:function(t,e){return"radialGradient"==(this._target||this).type?this.attr({cx:new b.Number(t),cy:new b.Number(e)}):this.attr({x2:new b.Number(t),y2:new b.Number(e)})}}),b.extend(b.Defs,{gradient:function(t,e){return this.put(new b.Gradient(t)).update(e)}}),b.Stop=b.invent({create:"stop",inherit:b.Element,extend:{update:function(t){return("number"==typeof t||t instanceof b.Number)&&(t={offset:arguments[0],color:arguments[1],opacity:arguments[2]}),null!=t.opacity&&this.attr("stop-opacity",t.opacity),null!=t.color&&this.attr("stop-color",t.color),null!=t.offset&&this.attr("offset",new b.Number(t.offset)),this}}}),b.Pattern=b.invent({create:"pattern",inherit:b.Container,extend:{url:function(){return"url(#"+this.id()+")"},update:function(t){return this.clear(),"function"==typeof t&&t.call(this,this),this},toString:function(){return 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this.select("textPath")}}),b.extend([b.Path],{text:function(t){if(t instanceof b.Text){var e=t.text();return t.clear().path(this).text(e)}return this.parent().put(new b.Text).path(this).text(t)}}),b.Nested=b.invent({create:function(){this.constructor.call(this,b.create("svg")),this.css("overflow","visible")},inherit:b.Container,construct:{nested:function(){return this.put(new b.Nested)}}}),b.A=b.invent({create:"a",inherit:b.Container,extend:{to:function(t){return this.attr("href",t,b.xlink)},show:function(t){return this.attr("show",t,b.xlink)},target:function(t){return this.attr("target",t)}},construct:{link:function(t){return this.put(new b.A).to(t)}}}),b.extend(b.Element,{linkTo:function(t){var e=new b.A;return"function"==typeof t?t.call(e,e):e.to(t),this.parent().put(e).put(this)}}),b.Marker=b.invent({create:"marker",inherit:b.Container,extend:{width:function(t){return this.attr("markerWidth",t)},height:function(t){return this.attr("markerHeight",t)},ref:function(t,e){return this.attr("refX",t).attr("refY",e)},update:function(t){return this.clear(),"function"==typeof t&&t.call(this,this),this},toString:function(){return"url(#"+this.id()+")"}},construct:{marker:function(t,e,n){return this.defs().marker(t,e,n)}}}),b.extend(b.Defs,{marker:function(t,e,n){return this.put(new b.Marker).size(t,e).ref(t/2,e/2).viewbox(0,0,t,e).attr("orient","auto").update(n)}}),b.extend([b.Line,b.Polyline,b.Polygon,b.Path],{marker:function(t,e,n,i){var r=["marker"];return"all"!=t&&r.push(t),r=r.join("-"),t=arguments[1]instanceof b.Marker?arguments[1]:this.doc().marker(e,n,i),this.attr(r,t)}});var N={stroke:["color","width","opacity","linecap","linejoin","miterlimit","dasharray","dashoffset"],fill:["color","opacity","rule"],prefix:function(t,e){return"color"==e?t:t+"-"+e}};["fill","stroke"].forEach(function(t){var e,n={};n[t]=function(n){if(void 0===n)return this;if("string"==typeof n||b.Color.isRgb(n)||n&&"function"==typeof n.fill)this.attr(t,n);else for(e=N[t].length-1;e>=0;e--)null!=n[N[t][e]]&&this.attr(N.prefix(t,N[t][e]),n[N[t][e]]);return this},b.extend([b.Element,b.FX],n)}),b.extend([b.Element,b.FX],{rotate:function(t,e,n){return this.transform({rotation:t,cx:e,cy:n})},skew:function(t,e,n,i){return 1==arguments.length||3==arguments.length?this.transform({skew:t,cx:e,cy:n}):this.transform({skewX:t,skewY:e,cx:n,cy:i})},scale:function(t,e,n,i){return 1==arguments.length||3==arguments.length?this.transform({scale:t,cx:e,cy:n}):this.transform({scaleX:t,scaleY:e,cx:n,cy:i})},translate:function(t,e){return this.transform({x:t,y:e})},flip:function(t,e){return e="number"==typeof t?t:e,this.transform({flip:t||"both",offset:e})},matrix:function(t){return this.attr("transform",new b.Matrix(6==arguments.length?[].slice.call(arguments):t))},opacity:function(t){return this.attr("opacity",t)},dx:function(t){return this.x(new b.Number(t).plus(this instanceof b.FX?0:this.x()),!0)},dy:function(t){return this.y(new b.Number(t).plus(this instanceof b.FX?0:this.y()),!0)},dmove:function(t,e){return this.dx(t).dy(e)}}),b.extend([b.Rect,b.Ellipse,b.Circle,b.Gradient,b.FX],{radius:function(t,e){var n=(this._target||this).type;return"radialGradient"==n||"radialGradient"==n?this.attr("r",new b.Number(t)):this.rx(t).ry(null==e?t:e)}}),b.extend(b.Path,{length:function(){return this.node.getTotalLength()},pointAt:function(t){return new b.Point(this.node.getPointAtLength(t))}}),b.extend([b.Parent,b.Text,b.Tspan,b.FX],{font:function(t,e){if("object"==typeof t)for(e in t)this.font(e,t[e]);return"leading"==t?this.leading(e):"anchor"==t?this.attr("text-anchor",e):"size"==t||"family"==t||"weight"==t||"stretch"==t||"variant"==t||"style"==t?this.attr("font-"+t,e):this.attr(t,e)}}),b.extend(b.Element,{data:function(t,e,n){if("object"==typeof t)for(e in t)this.data(e,t[e]);else if(arguments.length<2)try{return JSON.parse(this.attr("data-"+t))}catch(e){return this.attr("data-"+t)}else this.attr("data-"+t,null===e?null:!0===n||"string"==typeof e||"number"==typeof e?e:JSON.stringify(e));return this}}),b.extend(b.Element,{remember:function(t,e){if("object"==typeof arguments[0])for(var e in t)this.remember(e,t[e]);else{if(1==arguments.length)return this.memory()[t];this.memory()[t]=e}return this},forget:function(){if(0==arguments.length)this._memory={};else for(var t=arguments.length-1;t>=0;t--)delete this.memory()[arguments[t]];return this},memory:function(){return this._memory||(this._memory={})}}),b.get=function(t){var n=e.getElementById(w(t)||t);return b.adopt(n)},b.select=function(t,n){return b.utils.map((n||e).querySelectorAll(t),function(t){return b.adopt(t)})},b.$$=function(t,n){return b.utils.map((n||e).querySelectorAll(t),function(t){return b.adopt(t)})},b.$=function(t,n){return b.adopt((n||e).querySelector(t))},b.extend(b.Parent,{select:function(t){return b.select(t,this.node)}});var k="abcdef".split("");return b.Box=b.invent({create:function(t){var e=[0,0,0,0];t="string"==typeof t?t.split(b.regex.delimiter).map(parseFloat):Array.isArray(t)?t:"object"==typeof t?[null!=t.left?t.left:t.x,null!=t.top?t.top:t.y,t.width,t.height]:4==arguments.length?[].slice.call(arguments):e,this.x=t[0],this.y=t[1],this.width=t[2],this.height=t[3],g(this)},extend:{merge:function(t){var e=Math.min(this.x,t.x),n=Math.min(this.y,t.y);return new b.Box(e,n,Math.max(this.x+this.width,t.x+t.width)-e,Math.max(this.y+this.height,t.y+t.height)-n)},transform:function(t){var e=1/0,n=-1/0,i=1/0,r=-1/0;return[new b.Point(this.x,this.y),new b.Point(this.x2,this.y),new b.Point(this.x,this.y2),new b.Point(this.x2,this.y2)].forEach(function(s){s=s.transform(t),e=Math.min(e,s.x),n=Math.max(n,s.x),i=Math.min(i,s.y),r=Math.max(r,s.y)}),new b.Box(e,i,n-e,r-i)},addOffset:function(){return this.x+=t.pageXOffset,this.y+=t.pageYOffset,this},toString:function(){return this.x+" "+this.y+" "+this.width+" "+this.height},morph:function(t,e,n,i){return this.destination=new b.Box(t,e,n,i),this},at:function(t){return this.destination?new b.Box(this.x+(this.destination.x-this.x)*t,this.y+(this.destination.y-this.y)*t,this.width+(this.destination.width-this.width)*t,this.height+(this.destination.height-this.height)*t):this}},parent:b.Element,construct:{bbox:function(){var t;try{if(t=this.node.getBBox(),n(t)&&!i(this.node))throw new Exception("Element not in the dom")}catch(n){try{var e=this.clone(b.parser.draw.instance).show();t=e.node.getBBox(),e.remove()}catch(t){console.warn("Getting a bounding box of this element is not possible")}}return new b.Box(t)},rbox:function(t){try{var e=new b.Box(this.node.getBoundingClientRect());return t?e.transform(t.screenCTM().inverse()):e.addOffset()}catch(t){return new b.Box}}}}),b.extend([b.Doc,b.Nested,b.Symbol,b.Image,b.Pattern,b.Marker,b.ForeignObject,b.View],{viewbox:function(t,e,n,i){return null==t?new b.Box(this.attr("viewBox")):this.attr("viewBox",new b.Box(t,e,n,i))}}),b});
\ No newline at end of file
diff --git a/spec/spec/arrange.js b/spec/spec/arrange.js
index 3424b2a..89ece9c 100644
--- a/spec/spec/arrange.js
+++ b/spec/spec/arrange.js
@@ -33,11 +33,11 @@ describe('Arrange', function() {
     })
   })
 
-  describe('previous()', function() {
+  describe('prev()', function() {
     it('returns the previous sibling within the parent element', function() {
-      expect(e1.previous()).toBe(parser[0])
-      expect(e2.previous()).toBe(e1)
-      expect(e3.previous()).toBe(e2)
+      expect(e1.prev()).toBe(parser[0])
+      expect(e2.prev()).toBe(e1)
+      expect(e3.prev()).toBe(e2)
     })
   })
 
diff --git a/src/arrange.js b/src/arrange.js
index 904381f..15d3d3c 100644
--- a/src/arrange.js
+++ b/src/arrange.js
@@ -15,7 +15,7 @@ SVG.extend(SVG.Element, {
     return this.siblings()[this.position() + 1]
   }
   // Get the next element (will return null if there is none)
-, previous: function() {
+, prev: function() {
     return this.siblings()[this.position() - 1]
   }
   // Send given element one step forward
diff --git a/src/element.js b/src/element.js
index cedaf2d..a4eda1f 100644
--- a/src/element.js
+++ b/src/element.js
@@ -221,11 +221,9 @@ SVG.Element = SVG.invent({
         well.innerHTML = svg
 
         // transplant nodes
-        for (len = well.childNodes.length;len--;)
-          if(well.firstChild.nodeType != 1)
-            well.removeChild(well.firstChild)
-          else
-            this.node.appendChild(well.firstChild)
+        for (len = well.children.length;len--;) {
+          this.node.appendChild(well.firstElementChild)
+        }
 
       // otherwise act as a getter
       } else {
diff --git a/src/flatten.js b/src/flatten.js
index db9b9df..356a176 100644
--- a/src/flatten.js
+++ b/src/flatten.js
@@ -11,7 +11,7 @@ SVG.extend(SVG.Parent, {
     })
     
     // we need this so that SVG.Doc does not get removed
-    this.node.firstChild || this.remove()
+    this.node.firstElementChild || this.remove()
 
     return this
   }
diff --git a/src/helpers.js b/src/helpers.js
index 6a07482..7b58727 100644
--- a/src/helpers.js
+++ b/src/helpers.js
@@ -149,9 +149,8 @@ function arrayToString(a) {
 // Deep new id assignment
 function assignNewId(node) {
   // do the same for SVG child nodes as well
-  for (var i = node.childNodes.length - 1; i >= 0; i--)
-    if (node.childNodes[i] instanceof window.SVGElement)
-      assignNewId(node.childNodes[i])
+  for (var i = node.children.length - 1; i >= 0; i--)
+    assignNewId(node.children[i])
 
   if(node.id)
     return SVG.adopt(node).id(SVG.eid(node.nodeName))
diff --git a/src/parent.js b/src/parent.js
index ee99e4d..67d2d73 100644
--- a/src/parent.js
+++ b/src/parent.js
@@ -11,7 +11,7 @@ SVG.Parent = SVG.invent({
 , extend: {
     // Returns all child elements
     children: function() {
-      return SVG.utils.map(SVG.utils.filterSVGElements(this.node.childNodes), function(node) {
+      return SVG.utils.map(this.node.children, function(node) {
         return SVG.adopt(node)
       })
     }
@@ -19,8 +19,8 @@ SVG.Parent = SVG.invent({
   , add: function(element, i) {
       if (i == null)
         this.node.appendChild(element.node)
-      else if (element.node != this.node.childNodes[i])
-        this.node.insertBefore(element.node, this.node.childNodes[i])
+      else if (element.node != this.node.children[i])
+        this.node.insertBefore(element.node, this.node.children[i])
 
       return this
     }
@@ -35,11 +35,11 @@ SVG.Parent = SVG.invent({
     }
     // Gets index of given element
   , index: function(element) {
-      return [].slice.call(this.node.childNodes).indexOf(element.node)
+      return [].slice.call(this.node.children).indexOf(element.node)
     }
     // Get a element at the given index
   , get: function(i) {
-      return SVG.adopt(this.node.childNodes[i])
+      return SVG.adopt(this.node.children[i])
     }
     // Get first child
   , first: function() {
@@ -47,7 +47,7 @@ SVG.Parent = SVG.invent({
     }
     // Get the last child
   , last: function() {
-      return this.get(this.node.childNodes.length - 1)
+      return this.get(this.node.children.length - 1)
     }
     // Iterates over all children and invokes a given block
   , each: function(block, deep) {
@@ -58,7 +58,7 @@ SVG.Parent = SVG.invent({
         if (children[i] instanceof SVG.Element)
           block.apply(children[i], [i, children])
 
-        if (deep && (children[i] instanceof SVG.Container))
+        if (deep && (children[i] instanceof SVG.Parent))
           children[i].each(block, deep)
       }
     
diff --git a/src/text.js b/src/text.js
index 1e93db7..fa14894 100644
--- a/src/text.js
+++ b/src/text.js
@@ -46,10 +46,11 @@ SVG.Text = SVG.invent({
     // Set the text content
   , text: function(text) {
       // act as getter
-      if (typeof text === 'undefined'){
+      if (text === undefined){
         var text = ''
-        var children = this.node.childNodes
-        var firstLine = 0
+          , children = this.node.childNodes
+          , firstLine = 0
+
         for(var i = 0, len = children.length; i < len; ++i){
           // skip textPaths - they are no lines
           if(children[i].nodeName == 'textPath') {
@@ -114,11 +115,11 @@ SVG.Text = SVG.invent({
         var self = this
           , blankLineOffset = 0
           , dy = this.dom.leading * new SVG.Number(this.attr('font-size'))
-        
+
         this.each(function() {
           if (this.dom.newLined) {
             this.attr('x', self.attr('x'))
-            
+
             if(this.text() == '\n') {
               blankLineOffset += dy
             }else{
-- 
2.39.5