/* 
////////////////////////////////////////////////////////////////////////
// ProtoEdit                                                          //
// v. 2.11                                                            //
////////////////////////////////////////////////////////////////////////

For license see LICENSE.TXT
*/
var isDOM = document.getElementById //DOM1 browser 
var isO   = isO5 = window.opera && isDOM; //Opera 5+
var isO6  = isO && window.print //Opera 6+
var isO7  = isO && document.readyState //Opera 7+
var isO8  = isO && document.createProcessingInstruction && (new XMLHttpRequest()).getAllResponseHeaders //Opera 8+
var isIE  = document.all && document.all.item && !isO //Microsoft Internet Explorer 4+
var isIE5 = isIE && isDOM //MSIE 5+
var isMZ  = isDOM && (navigator.appName=="Netscape")
var ua = navigator.userAgent.toLowerCase();
var isSafari = (ua.indexOf("safari") != -1);

function ProtoEdit (){
    this.buttons = new Array();
}

ProtoEdit.prototype = { enabled: true, MZ: isMZ };

ProtoEdit.prototype._init = function(id, rte) {
    this.id = id;                           //id - id of textarea   
    this.area = document.getElementById(id);//area - textarea object
    this.area._owner = this;                //area._owner - this    
                                            //rte - id of rte frame 
    
    if (rte) {
        if (isIE) {
            frames[rte].document.onkeydown = function() { document.getElementById(id)._owner.keyDown(frames[rte].event)}
        } else if (this.MZ=isMZ) {
            document.getElementById(rte).contentWindow.document.addEventListener("keypress", function(ev){ document.getElementById(id)._owner.keyDown(ev)}, true);
            document.getElementById(rte).contentWindow.document.addEventListener("keyup",    function(ev){ document.getElementById(id)._owner.keyDown(ev)}, true);
        }
    } else {
        if (isIE) {
            this.area.onkeydown = function() { this._owner.keyDown(event)}
        } else if (isMZ) {
            this.area.addEventListener("keypress", function(ev){ this._owner.keyDown(ev)}, true);
            this.area.addEventListener("keyup",    function(ev){ this._owner.keyDown(ev)}, true);
        } else if (isO8) {
            this.area.onkeypress = function() { this._owner.keyDown(event)}
        }
    }
}

ProtoEdit.prototype.enable = function() {
    this.enabled = true;
}

ProtoEdit.prototype.disable = function() {
    this.enabled = false;
}

ProtoEdit.prototype.KeyDown = function () {
    return this.enabled;
}

ProtoEdit.prototype.insTag = function (Tag,Tag2) {
    if (isMZ) {
        var ss = this.area.scrollTop;
        sel1 = this.area.value.substr(0, this.area.selectionStart);
        sel2 = this.area.value.substr(this.area.selectionEnd);

        sel = this.area.value.substr(this.area.selectionStart,
                                     this.area.selectionEnd - this.area.selectionStart);

        this.area.value = sel1 + Tag + sel + Tag2 + sel2;
        selPos = Tag.length + sel1.length + sel.length + Tag2.length;
        this.area.setSelectionRange(sel1.length, selPos);
        this.area.scrollTop = ss;
    } else {
        this.area.focus();
        sel = document.selection.createRange();
        sel.text = Tag+sel.text+Tag2;
        this.area.focus();
    }
    return true;
}

ProtoEdit.prototype.createToolbar = function (id, width, height, readOnly) {
    wh = "";

    html = '<table id="buttons_' + id + '" cellpadding="1" cellspacing="0" class="toolbar"><tr>'
    if (this.editorName) 
        html += '<td class="'+this.editorNameClass+'">'+this.editorName+'</td>';

    for (var i in this.buttons) { // (var i = 0; i<this.buttons.length; i++) {
        var btn = this.buttons[i];
        if (btn.name==" ")
            html += ' <td>&nbsp;</td>\n';
        else if (btn.name=="customhtml")
            html += btn.desc;
        else
            html += ' <td class="btns-"><div id="' + btn.name + '_' + id + '" onmouseover=\'this.className="btn-hover";\' '
        + 'onmouseout=\'this.className="btn-";\' class="btn-" '
        + 'onclick="this.className=\'btn-pressed\';' + btn.actionName + '('//\'' + id + '\', ' 
        + btn.actionParams + ')"><img src="' + this.imagesPath 
        + btn.name + '.gif" ' + wh + ' alt="' + btn.desc + '" title="' + btn.desc 
        + '"></div></td>\n';
    }
    html += '</tr></table>\n';

    return html;
}

ProtoEdit.prototype.addButton = function (name, desc, actionParams, actionName) {
    this.buttons[this.buttons.length] =  
    { name: name, desc: desc, actionName: actionName || this.actionName, actionParams: actionParams};
}

// проверка, нужно ли обрабатывать нажатие на эту клавишу в мозилле
ProtoEdit.prototype.checkKey = function (k) {
    if (k==85+4096 || k==73+4096 || k==49+2048 || k==50+2048 || k==51+2048 || k==52+2048 || 
        k==76+4096 || k==76+2048 || k==78+2048 || k==79+2048 || k==66+2048 || k==83+2048 || 
        k==85+2048 || k==72+2048 || k==73+2048 || k==74+2048 || k==84+2048 || k==2109 ||
        k==2124+32 || k==2126+32 || k==2127+32 || k==2114+32 || k==2131+32 ||
        k==2133+32 || k==2121+32 || k==2120+32 || k==2122+32)
        return true;
    return false;
}

ProtoEdit.prototype.addEvent = function (el, evname, func) {
    if (isIE || isO8)
        el.attachEvent("on" + evname, func);
    else
        el.addEventListener(evname, func, true);
}

ProtoEdit.prototype.trim = function(s2) {
    return s2.replace (/^\s*(.*\S)\s*$/, "$1").replace (/\s+/g, " ");
}