$(function(){
  panel = $('.smilies_panel');
  if (panel.length) {
    function oneStepDialog(tag, question, defaultValue) {
      var value = prompt(question, defaultValue);
      if (value) {
        return '['+tag+']'+value+'[/'+tag+']';
      }
      return '';
    }
    function twoStepDialog(tag, question, defaultValue, question2, defaultValue2) {
      var value = prompt(question, defaultValue);
      var label = prompt(question2, defaultValue2=='{step_one}'?value:defaultValue2);
      if (value) {
        return '['+tag+'='+value.replace(/[\s"]/g, '')+']'+(label?label:value)+'[/'+tag+']';
      }
      return '';
    }
    $.each(panel, function(oneKey, onePanel) {
      var smilies = {":-D":"biggrin.png", ":-)":"smile.png", ":-/":"confused.png", ";-)":"wink.png", ":-(":"sad.png", ":-X":"mad.png", ":-O":"surprised.png", };
      var content = $('<div>');
      $.each(smilies, function(smile, image) {
        $('<a>').append($('<img>').attr('src', 'http://www.birkost.cz/css/komentare/smajlici/'+image)).click(function(){
          $(onePanel).parent().children('textarea').addToCursorPosition(smile);
        }).appendTo(content);
      });
      $(onePanel).append(content);
      
      button = $('<div>').addClass('tag_button').html('vložit text tučně').data('tag', 'b').data('first_step', 'napiš text, který má být vložen tučně').data('first_step_default', '');button.appendTo(onePanel);button = $('<div>').addClass('tag_button').html('vložit citaci').data('tag', 'i').data('first_step', 'napiš text, který má být vložen v úvozovkách').data('first_step_default', '');button.appendTo(onePanel);button = $('<div>').addClass('tag_button').html('vložit odkaz').data('tag', 'url').data('first_step', 'napiš webovou adresu').data('first_step_default', 'http://').data('second_step', 'napiš text odkazu').data('second_step_default', '{step_one}');button.appendTo(onePanel);      
      $(onePanel).find('div.tag_button').click(function(){
        button = this;
        if (!$(this).data('second_step')) {
          $(onePanel).parent().children('textarea').addToCursorPosition(oneStepDialog($(button).data('tag'), $(button).data('first_step'), $(button).data('first_step_default')));
        } else {
          $(onePanel).parent().children('textarea').addToCursorPosition(twoStepDialog($(button).data('tag'), $(button).data('first_step'), $(button).data('first_step_default'), $(button).data('second_step'), $(button).data('second_step_default')));
        }
      });
    });
  }
});
(function ($, undefined) {
  $.fn.addToCursorPosition = function (val) {
      var el = $(this).get(0);
      var pos = 0;
      if ('selectionStart' in el) {
          pos = el.selectionStart;
      } else if ('selection' in document) {
          el.focus();
          var Sel = document.selection.createRange();
          var SelLength = document.selection.createRange().text.length;
          Sel.moveStart('character', -el.value.length);
          pos = Sel.text.length - SelLength;
      }

      $(el).val($(el).val().substr(0, pos) +" "+ val + $(el).val().substr(pos));
      
      if (el.setSelectionRange) {
        el.focus();
        el.setSelectionRange(pos+val.length+1, pos+val.length+1);
      }
      else if (el.createTextRange) {
        var range = el.createTextRange();
        range.collapse(true);
        range.moveEnd('character', selectionEnd+val.length+1);
        range.moveStart('character', selectionStart+val.length+1);
        range.select();
      }
      
      return this;
  }
})(jQuery);