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// ### This module adds backward / forward functionality to elements.
//
SVG.extend(SVG.Element, {
// Get all siblings, including myself
siblings: function() {
return this.parent().children()
}
// Get the curent position siblings
, position: function() {
return this.parent().index(this)
}
// Get the next element (will return null if there is none)
, next: function() {
return this.siblings()[this.position() + 1]
}
// Get the next element (will return null if there is none)
, previous: function() {
return this.siblings()[this.position() - 1]
}
// Send given element one step forward
, forward: function() {
var i = this.position() + 1
, p = this.parent()
// move node one step forward
p.removeElement(this).add(this, i)
// make sure defs node is always at the top
if (p instanceof SVG.Doc)
p.node.appendChild(p.defs().node)
return this
}
// Send given element one step backward
, backward: function() {
var i = this.position()
if (i > 0)
this.parent().removeElement(this).add(this, i - 1)
return this
}
// Send given element all the way to the front
, front: function() {
var p = this.parent()
// Move node forward
p.node.appendChild(this.node)
// Make sure defs node is always at the top
if (p instanceof SVG.Doc)
p.node.appendChild(p.defs().node)
return this
}
// Send given element all the way to the back
, back: function() {
if (this.position() > 0)
this.parent().removeElement(this).add(this, 0)
return this
}
// Inserts a given element before the targeted element
, before: function(element) {
element.remove()
var i = this.position()
this.parent().add(element, i)
return this
}
// Insters a given element after the targeted element
, after: function(element) {
element.remove()
var i = this.position()
this.parent().add(element, i + 1)
return this
}
})
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