/**
 * @author WingedFox
 */

/**
 *  Keyboard constructor
 *
 *  @class DraggableVirtualKeyboard
 *  @constructor
 */

PopupVirtualKeyboard = new function() {
    var self = this;
    /**
     *  popup window handler
     * 
     *  @type {Window}
     *  @scope private
     */
    var hWnd = null;
    /**
     *  path to this file
     * 
     *  @type {String}
     */
    var p = (function (sname){var sc = document.getElementsByTagName('script'),sr = new RegExp('^(.*/|)('+sname+')([#?]|$)');for (var i=0,scL=sc.length; i<scL; i++) {var m = String(sc[i].src).match(sr);if (m) {if (m[1].match(/^((https?|file)\:\/{2,}|\w:[\\])/)) return m[1];if (m[1].indexOf("/")==0) return m[1];b = document.getElementsByTagName('base');if (b[0] && b[0].href) return b[0].href+m[1];return (document.location.href.match(/(.*[\/\\])/)[0]+m[1]).replace(/^\/+(?=\w:)/,"");}}return null;})('vk_popup.js');
    /**
     *  Tells, if the keyboard is open
     * 
     *  @return {Boolean}
     *  @scope public
     */
    this.isOpen = function () {
        return null!=hWnd && !hWnd.closed;
    }
    /**
     *  Target input
     *
     *  @type {String}
     *  @scope private
     */
    var tgt = null;
    /**
     *  Shows keyboard
     *
     *  @param {HTMLElement, String} input element or it to bind keyboard to
     *  @return {Boolean} operation state
     *  @scope public
     */
    this.show = function (target) {
        if (!hWnd || hWnd.closed) {
          hWnd = (window.showModelessDialog||window.open)(p+"vk_popup.html",window.showModelessDialog?window:"_blank","status=0,title=0,dependent=yes,resizable=no,scrollbars=no,width=500,height=500");
          tgt = target;
          return true;
        }
        return false;
    }
    /**
     *  Hides keyboard
     *
     *  @scope public
     */
    this.close = function (target) {
        if (!hWnd) return false;
        if (!hWnd.VirtualKeyboard.isOpen()) hWnd.VirtualKeyboard.hide();
        hWnd.close();
        hWnd = null;
    }
    this.onload = function () {
        hWnd.VirtualKeyboard.show( document.getElementById(tgt)
                                  ,hWnd.document.body
                                  ,hWnd.document.body
                                 );
        hWnd.dialogHeight = parseInt(hWnd.dialogHeight)-hWnd.getClientHeight()+hWnd.document.body.firstChild.offsetHeight+'px';
        hWnd.dialogWidth = parseInt(hWnd.dialogWidth)-hWnd.getClientWidth()+hWnd.document.body.firstChild.offsetWidth+'px';
        if (hWnd.sizeToContent) hWnd.sizeToContent();
        hWnd.onunload = self.close;
    }
    if (window.attachEvent) window.attachEvent('onunload', self.close);
    else if (window.addEventListener) window.addEventListener('unload', self.close, false);

    var p = (function (sname){var sc = document.getElementsByTagName('script'),sr = new RegExp('^(.*/|)('+sname+')([#?]|$)');for (var i=0,scL=sc.length; i<scL; i++) {var m = String(sc[i].src).match(sr);if (m) {if (m[1].match(/^((https?|file)\:\/{2,}|\w:[\\])/)) return m[1];if (m[1].indexOf("/")==0) return m[1];b = document.getElementsByTagName('base');if (b[0] && b[0].href) return b[0].href+m[1];return (document.location.pathname.match(/(.*[\/\\])/)[0]+m[1]).replace(/^\/+(?=\w:)/,"");}}return null;})('vk_popup.js');
    var dpd = ['/extensions/documentselection.js'];
    for (var i=0,dL=dpd.length;i<dL;i++) {
        document.write('<scr'+'ipt defer="false" type="text/javascript" src="'+p+dpd[i]+'"></scr'+'ipt>');
    }
}