1 files changed, 102 insertions, 0 deletions
diff --git a/src/parent.js b/src/parent.js
new file mode 100644
index 0000000..8b11f5f
--- /dev/null
+++ b/src/parent.js
@@ -0,0 +1,102 @@
+SVG.Parent = function(element) {
+  this.constructor.call(this, element)
+}
+
+// Inherit from SVG.Element
+SVG.Parent.prototype = new SVG.Element
+
+//
+SVG.extend(SVG.Parent, {
+	// Returns all child elements
+  children: function() {
+    return this._children || (this._children = [])
+  }
+  // Add given element at a position
+, add: function(element, i) {
+    if (!this.has(element)) {
+      /* define insertion index if none given */
+      i = i == null ? this.children().length : i
+      
+      /* remove references from previous parent */
+      if (element.parent) {
+        var index = element.parent.children().indexOf(element)
+        element.parent.children().splice(index, 1)
+      }
+      
+      /* add element references */
+      this.children().splice(i, 0, element)
+      this.node.insertBefore(element.node, this.node.childNodes[i] || null)
+      element.parent = this
+    }
+
+    /* reposition defs */
+    if (this._defs) {
+      this.node.removeChild(this._defs.node)
+      this.node.appendChild(this._defs.node)
+    }
+    
+    return this
+  }
+  // Basically does the same as `add()` but returns the added element instead
+, put: function(element, i) {
+    this.add(element, i)
+    return element
+  }
+  // Checks if the given element is a child
+, has: function(element) {
+    return this.children().indexOf(element) >= 0
+  }
+  // Get a element at the given index
+, get: function(i) {
+    return this.children()[i]
+  }
+  // Get first child, skipping the defs node
+, first: function() {
+    return this.children()[0]
+  }
+  // Get the last child
+, last: function() {
+    return this.children()[this.children().length - 1]
+  }
+  // Iterates over all children and invokes a given block
+, each: function(block, deep) {
+    var i, il
+      , children = this.children()
+    
+    for (i = 0, il = children.length; i < il; i++) {
+      if (children[i] instanceof SVG.Element)
+        block.apply(children[i], [i, children])
+
+      if (deep && (children[i] instanceof SVG.Container))
+        children[i].each(block, deep)
+    }
+  
+    return this
+  }
+  // Remove a child element at a position
+, removeElement: function(element) {
+    var i = this.children().indexOf(element)
+
+    this.children().splice(i, 1)
+    this.node.removeChild(element.node)
+    element.parent = null
+    
+    return this
+  }
+  // Remove all elements in this container
+, clear: function() {
+    /* remove children */
+    for (var i = this.children().length - 1; i >= 0; i--)
+      this.removeElement(this.children()[i])
+
+    /* remove defs node */
+    if (this._defs)
+      this._defs.clear()
+
+    return this
+  }
+ , // Get defs
+  defs: function() {
+    return this.doc().defs()
+  }
+})
+\ No newline at end of file