(function (mod){ 
if (typeof exports == "object" && typeof module == "object") mod(require("../../lib/codemirror")); 
 else if (typeof define == "function" && define.amd) define(["../../lib/codemirror"] , mod); 
 else mod(CodeMirror); 
} 
)(function (CodeMirror){ 
CodeMirror.defineExtension("addPanel", function (node, options){ 
options = options || { 
}
; 
if (!this.state.panels) initPanels(this); 
var info = this.state.panels; 
var wrapper = info.wrapper; 
var cmWrapper = this.getWrapperElement(); 
if (options.after instanceof Panel && !options.after.cleared) { 
wrapper.insertBefore(node, options.before.node.nextSibling); 
} 
 else if (options.before instanceof Panel && !options.before.cleared) { 
wrapper.insertBefore(node, options.before.node); 
} 
 else if (options.replace instanceof Panel && !options.replace.cleared) { 
wrapper.insertBefore(node, options.replace.node); 
_AN_Call_clear("clear", options.replace); 
} 
 else if (options.position == "bottom") { 
_AN_Call_appendchild("appendChild", wrapper, node); 
} 
 else if (options.position == "before-bottom") { 
wrapper.insertBefore(node, cmWrapper.nextSibling); 
} 
 else if (options.position == "after-top") { 
wrapper.insertBefore(node, cmWrapper); 
} 
 else { 
wrapper.insertBefore(node, wrapper.firstChild); 
} 
var height = (options && options.height) || node.offsetHeight; 
this._setSize(null , info.heightLeft -= height); 
info.panels++ ; 
return new Panel(this, node, options, height); 
} 
); 
function Panel(cm, node, options, height){ 
this.cm = cm; 
this.node = node; 
this.options = options; 
this.height = height; 
this.cleared = false ; 
} 
Panel.prototype.clear = function (){ 
if (this.cleared) return ; 
this.cleared = true ; 
var info = this.cm.state.panels; 
this.cm._setSize(null , info.heightLeft += this.height); 
info.wrapper.removeChild(this.node); 
if (--info.panels == 0) removePanels(this.cm); 
} 
; 
Panel.prototype.changed = function (height){ 
var newHeight = height == null ? this.node.offsetHeight: height; 
var info = this.cm.state.panels; 
this.cm._setSize(null , info.height += (newHeight - this.height)); 
this.height = newHeight; 
} 
; 
function initPanels(cm){ 
var wrap = cm.getWrapperElement(); 
var style = window.getComputedStyle? window.getComputedStyle(wrap): wrap.currentStyle; 
var height = parseInt(style.height); 
var info = cm.state.panels = { 
setHeight: wrap.style.height,
heightLeft: height,
panels: 0,
wrapper: _AN_Call_createelement("createElement", document, "div")}
; 
wrap.parentNode.insertBefore(info.wrapper, wrap); 
var hasFocus = cm.hasFocus(); 
_AN_Call_appendchild("appendChild", info.wrapper, wrap); 
if (hasFocus) cm.focus(); 
cm._setSize = cm.setSize; 
if (height != null ) cm.setSize = function (width, newHeight){ 
if (newHeight == null ) return this._setSize(width, newHeight); 
info.setHeight = newHeight; 
if (typeof newHeight != "number") { 
var px = /^(\d+\.?\d*)px$/.exec(newHeight); 
if (px) { 
newHeight = Number(px[1]); 
} 
 else { 
info.wrapper.style.height = newHeight; 
newHeight = info.wrapper.offsetHeight; 
info.wrapper.style.height = ""; 
} 
} 
cm._setSize(width, info.heightLeft += (newHeight - height)); 
height = newHeight; 
} 
; 
} 
function removePanels(cm){ 
var info = cm.state.panels; 
cm.state.panels = null ; 
var wrap = cm.getWrapperElement(); 
info.wrapper.parentNode.replaceChild(wrap, info.wrapper); 
wrap.style.height = info.setHeight; 
cm.setSize = cm._setSize; 
cm.setSize(); 
} 
} 
);