/**
 * modified by misol (misol221@paran.com - Not NHN) 2009. 7. 29
 */
/*
Copyright (c) 2008, NHN
All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

- Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
- Neither the name of the NHN nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
 * AutoSourcing (Opensource ver)
 * @author gony (AjaxUI3 Team)
 */
var AutoSourcing = {
  div      : null,
  id       : "",
  timer    : null,
  regex    : null,
  strings  : [],
  skip     : false,
  handlers : {},
  init : function(format, enable) {
    var t = this;
    var n = navigator;
    var is_safari = (n.userAgent.indexOf("WebKit") > -1);
    this.div = document.createElement("div");
    this.div.className = (((/MSIE/.test(n.userAgent)&&!/MSIE 8/.test(n.userAgent))||/Gecko/.test(n.userAgent))&&!is_safari)?"autosourcing-stub":"autosourcing-stub-extra";
    // 임시 아이디 부여
    this.id = "autosourcing_tmp_"+(Math.random()*10000);
    // 형식을 정규식으로 만든다. 일단은 특수문자 처리 생략
    this.regex = new RegExp(format.replace("%id%", "(\\d+)"));
    // bind functions
    this.handlers.copy     = function(){ t.copy() };
    this.handlers.keydown  = function(evt){ t.keydown(evt) };
    this.handlers.keypress = function(evt){ t.keypress(evt) };
    // enable
    if(typeof enable == "undefined") enable = true;
    this.setEnable(enable);
  },
  setEnable : function(bool) {
    if (bool) {
      if (typeof document.body.oncopy != "undefined") {
        // Internet Explorer, Safari
        this.addEvent(document.body, "copy", this.handlers.copy);
      } else {
        this.addEvent(document, "keydown", this.handlers.keydown);
        this.addEvent(document, "keypress", this.handlers.keypress);
        this.addEvent(document, "contextmenu", this.handlers.copy);
      }
    } else {
      if (typeof document.body.oncopy != "undefined") {
        // Internet Explorer, Safari
        this.removeEvent(document.body, "copy", this.handlers.copy);
      } else {
        this.removeEvent(document, "keydown", this.handlers.keydown);
        this.removeEvent(document, "keypress", this.handlers.keypress);
        this.removeEvent(document, "contextmenu", this.handlers.copy);
      }
    }
  },
  getId : function(rng) {
    var range_s, range_e, par, id;
    // 시작노드에 대해서
    range_s = this.cloneRange(rng)
    range_s.collapse(true); // collapse to start point
    par = this.getParentElement(range_s);
    while(par && par.parentNode) {
      if (par.nodeType == 1 && this.regex.test(par.id)) {
        id = parseInt(RegExp.$1);
        return isNaN(id)?0:id;
      }
      par = par.parentNode;
    }
    // 시작노드에 없어? 그럼 끝노드에 대해서
    range_e = this.cloneRange(rng)
    range_e.collapse(false); // collapse to end point
    par = this.getParentElement(range_e);
    while(par && par.parentNode) {
      if (par.nodeType == 1 && this.regex.test(par.id)) {
        id = parseInt(RegExp.$1);
        return isNaN(id)?0:id;
      }
      par = par.parentNode;
    }
    return 0;
  },
  getSelection : function() {
    if (window.getSelection) {
      return window.getSelection();
    } else {
      return document.selection;
    }
  },
  getRange : function(selection) {
    selection = selection || this.getSelection();
    if (selection.getRangeAt) {
      return selection.getRangeAt(0);
    } else {
      return selection.createRange();
    }
  },
  cloneRange : function(rng) {
    rng = rng || this.getRange();
    if (rng.duplicate) {
      return rng.duplicate();
    } else {
      return rng.cloneRange();
    }
  },
  getParentElement : function(range) {
    var par = range.parentElement?range.parentElement():range.commonAncestorContainer;
    if (!par) return null;
    while(par.nodeType != 1) {
      par = par.parentNode;
    }
    return par;
  },
  setString : function(id, sTitle, sName, sLink) {
    var data = { name : sName, link : sLink, title : sTitle };
    this.strings[id] = this._template.replace(/\{(\w+)\}/g,function(m0,m1){
      return data[m1]?data[m1]:"";
    });
  },
  copy : function(evt) {
    var evt    = evt || window.event;
    var self   = this;
    var sel    = this.getSelection();
    var rng    = this.getRange(sel);
    var rngtmp = this.cloneRange(rng);
    var regcopy= /(?:p|<div)[^<>]+class\s*=\s*"?autosourcing\-stub(?:\-extra)?\-saved(?:\b|")/i;
    var regtag = /textarea|input/i;
    var id     = this.getId(rng);
    var node_rng;
    this.skip = false;
    clearTimeout(this.timer);
    if (id == 0) {
      try { this.div.parentNode.removeChild(this.div) }catch(e){};
      return;
    }
    if (evt && evt.srcElement && evt.srcElement.tagName.toUpperCase() == "A") return;
    if(!this.div.innerHTML) this.div.innerHTML = this.strings[id];
    if (window.getSelection) {
      var html = (window.XMLSerializer)?new XMLSerializer().serializeToString(rng.cloneContents()):"";
      if (regcopy.test(html) || regtag.test(rng.commonAncestorContainer.tagName)) {
        this.skip = true;
        return;
      }
      rngtmp.collapse(false);
      rngtmp.insertNode(this.div);
      if (this.div.nextSibling) {
        rng.setEndBefore(this.div.nextSibling);
      } else {
        rng.setEndAfter(this.div);
      }
      sel.removeAllRanges();
      sel.addRange(rng);
    } else if (document.selection) {
      var body = document.body || document.getElementsByTagName("body")[0];
      var div  = document.createElement("div");
      var span = document.createElement("span");
      span.id = this.id;
      if (regcopy.test(rng.htmlText) || regtag.test(rng.parentElement().tagName)) {
        this.skip = true;
        return;
      }
      rngtmp.collapse(false);
      rngtmp.pasteHTML(span.outerHTML+'&nbsp;<a></a>'); // <a>는 노드를 나누기 위해 삽입
      //rngtmp.pasteHTML(span.outerHTML);
      span = document.getElementById(this.id);
      (span || rngtmp.parentElement()).insertAdjacentElement("afterEnd",this.div);
      if(!/MSIE 8/.test(navigator.userAgent)) {
        do {
          rng.moveEnd("character", 1);
          (rngtmp = rng.duplicate()).collapse(false);
        } while(rngtmp.offsetLeft == 0);
      }
      else {
        rng.moveEnd("character", this.div.innerHTML.replace(/<[^>]*>/g, '').replace(/^\s\s*/, '').replace(/\s\s*$/, '').length);
        rngtmp = this.cloneRange(rng);
        rngtmp.collapse(false);
      }
      try { rng.select(); } catch(e){}
      // 블로그를 위한 패치 - 이래도 되는건가...
      if (span && span.parentNode) {
        if(!span.nextSibling.nextSibling) return false;
        span.parentNode.removeChild(span.nextSibling.nextSibling);
        span.parentNode.removeChild(span.nextSibling.nextSibling);
        span.parentNode.removeChild(span);
      }
      if (div.parentNode) {
        div.parentNode.removeChild(div);
      }
    }
    if (typeof document.body.oncopy != "undefined") {
      this.timer = setTimeout(function(){ self.aftercopy(rng); }, 0);
    }
  },
  aftercopy : function(rng) {
    if (this.skip) return;
    try {
      this.div.parentNode.removeChild(this.div);
      if (/WebKit/.test(navigator.userAgent)) {
        var sel = this.getSelection();
        sel.removeAllRanges();
        sel.addRange(rng);
      }
    } catch(e) { }
  },
  keydown : function(e) {
    if ((e.ctrlKey || e.metaKey) && e.keyCode == 67) {
      this.copy();
    }
  },
  keypress : function(e) {
    if ((e.ctrlKey || e.metaKey) && e.keyCode == 67) {
      var t = this;
      this.timer = setTimeout(function(){ t.aftercopy(); }, 10);
    }
    },
  mousedown : function(e) {
  },
  setTemplate : function(html) {
    this._template = html;
  },
  addEvent : function(obj, sEvent, pFunc) {
    function addEventIE(obj, sEvent, pFunc) {
      obj.attachEvent("on"+sEvent, pFunc);
    }
    function addEventFF(obj, sEvent, pFunc) {
      obj.addEventListener(sEvent, pFunc, false);
    }
    if (obj.attachEvent) this.addEvent = addEventIE;
    else this.addEvent = addEventFF;
    this.addEvent(obj, sEvent, pFunc);
  },
  removeEvent : function(obj, sEvent, pFunc) {
    function removeEventIE(obj, sEvent, pFunc) {
      obj.detachEvent("on"+sEvent, pFunc);
    }
    function removeEventFF(obj, sEvent, pFunc) {
      obj.removeEventListener(sEvent, pFunc, false);
    }
    if (obj.detachEvent) this.removeEvent = removeEventIE;
    else this.removeEvent = removeEventFF;
  }
}