//-- copyright
// OpenProject is a project management system.
// Copyright (C) 2012-2013 the OpenProject Foundation (OPF)
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License version 3.
//
// OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
// Copyright (C) 2006-2013 Jean-Philippe Lang
// Copyright (C) 2010-2013 the ChiliProject Team
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
//
// See doc/COPYRIGHT.rdoc for more details.
//++

// This is a manifest file that'll be compiled into application.js, which will include all the files
// listed below.
//
// Any JavaScript/Coffee file within this directory, lib/assets/javascripts, vendor/assets/javascripts,
// or vendor/assets/javascripts of plugins, if any, can be referenced here using a relative path.
//
// It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the
// the compiled file.
//
// WARNING: THE FIRST BLANK LINE MARKS THE END OF WHAT'S TO BE PROCESSED, ANY BLANK LINE SHOULD
// GO AFTER THE REQUIRES BELOW.
//
//= require jquery
//= require jquery.ui.all
//= require jquery-ui-i18n
//= require jquery.menu_expand
//= require jquery.atwho
//= require jquery_ujs
//= require jquery_noconflict
//= require jquery.colorcontrast
//= require jquery.trap
//= require prototype
//= require effects
//= require dragdrop
//= require controls
//= require i18n
//= require i18n/translations
//= require select2
//= require top_menu
//= require action_menu
//= require openproject
//= require breadcrumb
//= require findDomElement
//= require context_menu
//= require jstoolbar
//= require ajaxappender
//= require settings
//= require modal
//= require keyboard_shortcuts
//= require top-shelf
//= require unsupported-browsers
//= require autocomplete_textareas
//= require_tree ./specific
//= require openproject_plugins
//= require versions

//source: http://stackoverflow.com/questions/8120065/jquery-and-prototype-dont-work-together-with-array-prototype-reverse
if (typeof []._reverse == 'undefined') {
    jQuery.fn.reverse = Array.prototype.reverse;
} else {
    jQuery.fn.reverse = Array.prototype._reverse;
}

jQuery(document).ready(function ($) {
  //remove modal layout=false if we ctrl-click!
  $(document.body).on("click", "a", function (e) {
    if (top != self && e.ctrlKey) {
      if (e.target && e.target.href) {
        var url = e.target.href;
        if (url.match(/(&)?layout=false/)) {
          url = url.replace(/(&)?layout=false/g, "").replace(/\?$/, "");
          window.open(url);
          e.preventDefault();
        }
      }
    }
  });

  if (typeof CS !== "undefined") {
    var regions = $.datepicker.regional;
    var regional = regions[CS.lang] || regions[""];
    $.datepicker.setDefaults(regional);

    var gotoToday = $.datepicker._gotoToday;

    $.datepicker._gotoToday = function (id) {
      gotoToday.call(this, id);
      var target = $(id),
        inst = this._getInst(target[0]),
        dateStr = $.datepicker._formatDate(inst);
      target.val(dateStr);
      target.blur();
      $.datepicker._hideDatepicker();
    };

    var defaults = {
      showWeek: true,
      changeMonth: true,
      changeYear: true,
      yearRange: "c-100:c+10",
      dateFormat: 'yy-mm-dd',
      showButtonPanel: true,
      calculateWeek: function (d) {
        if (d.getDay() != 1) {
          d.setDate(d.getDate() - d.getDay() + 1);
        }
        return $.datepicker.iso8601Week(d);
      }
    };

    if (CS.firstWeekDay && CS.firstWeekDay !== "") {
      defaults.firstDay = parseInt(CS.firstWeekDay, 10);
    }

    $.datepicker.setDefaults(defaults);
  }
});

function checkAll (id, checked) {
	var els = Element.descendants(id);
	for (var i = 0; i < els.length; i++) {
    if (els[i].disabled==false) {
      els[i].checked = checked;
    }
	}
}

function toggleCheckboxesBySelector(selector) {
	boxes = $$(selector);
	var all_checked = true;
	for (i = 0; i < boxes.length; i++) { if (boxes[i].checked == false) { all_checked = false; } }
	for (i = 0; i < boxes.length; i++) { boxes[i].checked = !all_checked; }
}

function setCheckboxesBySelector(checked, selector) {
  var boxes = $$(selector);
  boxes.each(function(ele) {
    ele.checked = checked;
  });
}

function showAndScrollTo(id, focus) {
	Element.show(id);
	if (focus!=null) { Form.Element.focus(focus); }
	Element.scrollTo(id);
}

function setGroupRowStatus(el) {
  var collapseExpandButton = jQuery(el);
  var row = jQuery(el).closest("tr");
  var isOpen = row.hasClass("open")
  var toggleAllLink = row.find(".toggle-all")
  var toggleAllLinkText = isOpen ? I18n.t('js.label_collapse_all') : I18n.t('js.label_expand_all');

  collapseExpandButton.toggleClass("icon-minus")
  collapseExpandButton.toggleClass("icon-plus")
  toggleAllLink.text(toggleAllLinkText);
}

function toggleRowGroup(el) {
  var row = jQuery(el).closest("tr");
  
  row.toggleClass("open closed");

  setGroupRowStatus(el);

  row.nextUntil("tr.group").each(function(index) {
    jQuery(this).toggle();
  });
}

function toggleAllRowGroups(el) {
  var row = jQuery(el).closest("tr");
  var collapseExpandButton = jQuery(row).find(".expander");
  var isOpen = row.hasClass("open");

  toggleRowGroup(collapseExpandButton);

  row.siblings("tr.group").each(function(index) {
    var currentGroupOpen = jQuery(this).hasClass("open");
    var collapseExpandButton = jQuery(this).find(".expander");

    if (isOpen == currentGroupOpen) {
      toggleRowGroup(collapseExpandButton);
    }
  });
}

function toggleFieldset(el) {
	var fieldset = Element.up(el, 'fieldset');
	fieldset.toggleClassName('collapsed');
	Effect.toggle(fieldset.down('>div'), 'slide', {duration:0.2});
}

function hideFieldset(el) {
	var fieldset = Element.up(el, 'fieldset');
	fieldset.toggleClassName('collapsed');
	fieldset.down('>div').hide();
}

var fileFieldCount = 1;

function addFileField() {
  fileFieldCount++;
  if (fileFieldCount >= 10) return false
  var clone = $('attachment_template').cloneNode(true);
  clone.writeAttribute('id', '');
  clone.innerHTML = clone.innerHTML.replace(/\[1\]/g, '['+ fileFieldCount + ']');
  $('attachments_fields').appendChild(clone);
}

function showTab(name) {
    var f = $$('div#content .tab-content');
	for(var i=0; i<f.length; i++){
		Element.hide(f[i]);
	}
    var f = $$('div.tabs a');
	for(var i=0; i<f.length; i++){
		Element.removeClassName(f[i], "selected");
	}
	Element.show('tab-content-' + name);
	Element.addClassName('tab-' + name, "selected");
        Element.insert('tab-' + name, {top: $$('div.tabs .hidden-for-sighted')[0]})
	return false;
}

function moveTabRight(el) {
	var lis = Element.up(el, 'div.tabs').down('ul').childElements();
	var tabsWidth = 0;
	var i;
	for (i=0; i<lis.length; i++) {
		if (lis[i].visible()) {
			tabsWidth += lis[i].getWidth() + 6;
		}
	}
	if (tabsWidth < Element.up(el, 'div.tabs').getWidth() - 60) {
		return;
	}
	i=0;
	while (i<lis.length && !lis[i].visible()) {
		i++;
	}
	lis[i].hide();
}

function moveTabLeft(el) {
	var lis = Element.up(el, 'div.tabs').down('ul').childElements();
	var i = 0;
	while (i<lis.length && !lis[i].visible()) {
		i++;
	}
	if (i>0) {
		lis[i-1].show();
	}
}

function displayTabsButtons() {
	var lis;
	var tabsWidth = 0;
	var i;
	$$('div.tabs').each(function(el) {
		lis = el.down('ul').childElements();
		for (i=0; i<lis.length; i++) {
			if (lis[i].visible()) {
				tabsWidth += lis[i].getWidth() + 6;
			}
		}
		if ((tabsWidth < el.getWidth() - 20) && (lis[0].visible())) {
			el.down('div.tabs-buttons').hide();
		} else {
			el.down('div.tabs-buttons').show();
		}
	});
}

function setPredecessorFieldsVisibility() {
    relationType = $('relation_relation_type');
    if (relationType && (relationType.value == "precedes" || relationType.value == "follows")) {
        Element.show('predecessor_fields');
    } else {
        Element.hide('predecessor_fields');
    }
}

function promptToRemote(text, param, url) {
    value = prompt(text + ':', '');
    if (value) {
        new Ajax.Request(url + '?' + param + '=' + encodeURIComponent(value), {asynchronous:true, evalScripts:true});
        return false;
    }
}

function collapseScmEntry(id) {
    var els = document.getElementsByClassName(id, 'browser');
	for (var i = 0; i < els.length; i++) {
	   if (els[i].hasClassName('open')) {
	       collapseScmEntry(els[i].id);
	   }
       Element.hide(els[i]);
    }
    $(id).removeClassName('open');
}

function expandScmEntry(id) {
    var els = document.getElementsByClassName(id, 'browser');
	for (var i = 0; i < els.length; i++) {
       Element.show(els[i]);
       if (els[i].hasClassName('loaded') && !els[i].hasClassName('collapsed')) {
            expandScmEntry(els[i].id);
       }
    }
    $(id).addClassName('open');
}

function scmEntryClick(id) {
    el = $(id);
    if (el.hasClassName('open')) {
        collapseScmEntry(id);
        el.addClassName('collapsed');
        return false;
    } else if (el.hasClassName('loaded')) {
        expandScmEntry(id);
        el.removeClassName('collapsed');
        return false;
    }
    if (el.hasClassName('loading')) {
        return false;
    }
    el.addClassName('loading');
    return true;
}

function scmEntryLoaded(id) {
    Element.addClassName(id, 'open');
    Element.addClassName(id, 'loaded');
    Element.removeClassName(id, 'loading');
}

function randomKey(size) {
	var chars = new Array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z');
	var key = '';
	for (i = 0; i < size; i++) {
  	key += chars[Math.floor(Math.random() * chars.length)];
	}
	return key;
}

// Automatic project identifier generation
var projectIdentifierLocked;
var projectIdentifierDefault;
var projectIdentifierMaxLength;

function generateProjectIdentifier() {
  var identifier = $('project_name').getValue() // project name
  var diacriticsMap = [
      {'base':'a', 'letters':/[\u0061\u24D0\uFF41\u1E9A\u00E0\u00E1\u00E2\u1EA7\u1EA5\u1EAB\u1EA9\u00E3\u0101\u0103\u1EB1\u1EAF\u1EB5\u1EB3\u0227\u01E1\u01DF\u1EA3\u00E5\u01FB\u01CE\u0201\u0203\u1EA1\u1EAD\u1EB7\u1E01\u0105\u2C65\u0250\u0041\u24B6\uFF21\u00C0\u00C1\u00C2\u1EA6\u1EA4\u1EAA\u1EA8\u00C3\u0100\u0102\u1EB0\u1EAE\u1EB4\u1EB2\u0226\u01E0\u01DE\u1EA2\u00C5\u01FA\u01CD\u0200\u0202\u1EA0\u1EAC\u1EB6\u1E00\u0104\u023A\u2C6F]/g},
      {'base':'aa','letters':/[\uA733\uA732]/g},
      {'base':'ae','letters':/[\u00E4\u00E6\u01FD\u01E3\u00C4\u00C6\u01FC\u01E2]/g},
      {'base':'ao','letters':/[\uA735\uA734]/g},
      {'base':'au','letters':/[\uA737\uA736]/g},
      {'base':'av','letters':/[\uA739\uA73B\uA738\uA73A]/g},
      {'base':'ay','letters':/[\uA73D\uA73C]/g},
      {'base':'b', 'letters':/[\u0062\u24D1\uFF42\u1E03\u1E05\u1E07\u0180\u0183\u0253\u0042\u24B7\uFF22\u1E02\u1E04\u1E06\u0243\u0182\u0181]/g},
      {'base':'c', 'letters':/[\u0063\u24D2\uFF43\u0107\u0109\u010B\u010D\u00E7\u1E09\u0188\u023C\uA73F\u2184\u0043\u24B8\uFF23\u0106\u0108\u010A\u010C\u00C7\u1E08\u0187\u023B\uA73E]/g},
      {'base':'d', 'letters':/[\u0064\u24D3\uFF44\u1E0B\u010F\u1E0D\u1E11\u1E13\u1E0F\u0111\u018C\u0256\u0257\uA77A\u0044\u24B9\uFF24\u1E0A\u010E\u1E0C\u1E10\u1E12\u1E0E\u0110\u018B\u018A\u0189\uA779]/g},
      {'base':'dz','letters':/[\u01F3\u01C6\u01F1\u01C4\u01F2\u01C5]/g},
      {'base':'e', 'letters':/[\u0065\u24D4\uFF45\u00E8\u00E9\u00EA\u1EC1\u1EBF\u1EC5\u1EC3\u1EBD\u0113\u1E15\u1E17\u0115\u0117\u00EB\u1EBB\u011B\u0205\u0207\u1EB9\u1EC7\u0229\u1E1D\u0119\u1E19\u1E1B\u0247\u025B\u01DD\u0045\u24BA\uFF25\u00C8\u00C9\u00CA\u1EC0\u1EBE\u1EC4\u1EC2\u1EBC\u0112\u1E14\u1E16\u0114\u0116\u00CB\u1EBA\u011A\u0204\u0206\u1EB8\u1EC6\u0228\u1E1C\u0118\u1E18\u1E1A\u0190\u018E]/g},
      {'base':'f', 'letters':/[\u0066\u24D5\uFF46\u1E1F\u0192\uA77C\u0046\u24BB\uFF26\u1E1E\u0191\uA77B]/g},
      {'base':'g', 'letters':/[\u0067\u24D6\uFF47\u01F5\u011D\u1E21\u011F\u0121\u01E7\u0123\u01E5\u0260\uA7A1\u1D79\uA77F\u0047\u24BC\uFF27\u01F4\u011C\u1E20\u011E\u0120\u01E6\u0122\u01E4\u0193\uA7A0\uA77D\uA77E]/g},
      {'base':'h', 'letters':/[\u0068\u24D7\uFF48\u0125\u1E23\u1E27\u021F\u1E25\u1E29\u1E2B\u1E96\u0127\u2C68\u2C76\u0265\u0048\u24BD\uFF28\u0124\u1E22\u1E26\u021E\u1E24\u1E28\u1E2A\u0126\u2C67\u2C75\uA78D]/g},
      {'base':'hv','letters':/[\u0195]/g},
      {'base':'i', 'letters':/[\u0069\u24D8\uFF49\u00EC\u00ED\u00EE\u0129\u012B\u012D\u00EF\u1E2F\u1EC9\u01D0\u0209\u020B\u1ECB\u012F\u1E2D\u0268\u0131\u0049\u24BE\uFF29\u00CC\u00CD\u00CE\u0128\u012A\u012C\u0130\u00CF\u1E2E\u1EC8\u01CF\u0208\u020A\u1ECA\u012E\u1E2C\u0197]/g},
      {'base':'j', 'letters':/[\u006A\u24D9\uFF4A\u0135\u01F0\u0249\u004A\u24BF\uFF2A\u0134\u0248]/g},
      {'base':'k', 'letters':/[\u006B\u24DA\uFF4B\u1E31\u01E9\u1E33\u0137\u1E35\u0199\u2C6A\uA741\uA743\uA745\uA7A3\u004B\u24C0\uFF2B\u1E30\u01E8\u1E32\u0136\u1E34\u0198\u2C69\uA740\uA742\uA744\uA7A2]/g},
      {'base':'l', 'letters':/[\u006C\u24DB\uFF4C\u0140\u013A\u013E\u1E37\u1E39\u013C\u1E3D\u1E3B\u017F\u0142\u019A\u026B\u2C61\uA749\uA781\uA747\u004C\u24C1\uFF2C\u013F\u0139\u013D\u1E36\u1E38\u013B\u1E3C\u1E3A\u0141\u023D\u2C62\u2C60\uA748\uA746\uA780]/g},
      {'base':'lj','letters':/[\u01C9\u01C7\u01C8]/g},
      {'base':'m', 'letters':/[\u006D\u24DC\uFF4D\u1E3F\u1E41\u1E43\u0271\u026F\u004D\u24C2\uFF2D\u1E3E\u1E40\u1E42\u2C6E\u019C]/g},
      {'base':'n', 'letters':/[\u006E\u24DD\uFF4E\u01F9\u0144\u00F1\u1E45\u0148\u1E47\u0146\u1E4B\u1E49\u019E\u0272\u0149\uA791\uA7A5\u004E\u24C3\uFF2E\u01F8\u0143\u00D1\u1E44\u0147\u1E46\u0145\u1E4A\u1E48\u0220\u019D\uA790\uA7A4]/g},
      {'base':'nj','letters':/[\u01CC\u01CA\u01CB]/g},
      {'base':'o', 'letters':/[\u006F\u24DE\uFF4F\u00F2\u00F3\u00F4\u1ED3\u1ED1\u1ED7\u1ED5\u00F5\u1E4D\u022D\u1E4F\u014D\u1E51\u1E53\u014F\u022F\u0231\u022B\u1ECF\u0151\u01D2\u020D\u020F\u01A1\u1EDD\u1EDB\u1EE1\u1EDF\u1EE3\u1ECD\u1ED9\u01EB\u01ED\u00F8\u01FF\u0254\uA74B\uA74D\u0275\u004F\u24C4\uFF2F\u00D2\u00D3\u00D4\u1ED2\u1ED0\u1ED6\u1ED4\u00D5\u1E4C\u022C\u1E4E\u014C\u1E50\u1E52\u014E\u022E\u0230\u022A\u1ECE\u0150\u01D1\u020C\u020E\u01A0\u1EDC\u1EDA\u1EE0\u1EDE\u1EE2\u1ECC\u1ED8\u01EA\u01EC\u00D8\u01FE\u0186\u019F\uA74A\uA74C]/g},
      {'base':'oe','letters': /[\u00F6\u0153\u00D6\u0152]/g},
      {'base':'oi','letters':/[\u01A3\u01A2]/g},
      {'base':'ou','letters':/[\u0223\u0222]/g},
      {'base':'oo','letters':/[\uA74F\uA74E]/g},
      {'base':'p','letters':/[\u0070\u24DF\uFF50\u1E55\u1E57\u01A5\u1D7D\uA751\uA753\uA755\u0050\u24C5\uFF30\u1E54\u1E56\u01A4\u2C63\uA750\uA752\uA754]/g},
      {'base':'q','letters':/[\u0071\u24E0\uFF51\u024B\uA757\uA759\u0051\u24C6\uFF31\uA756\uA758\u024A]/g},
      {'base':'r','letters':/[\u0072\u24E1\uFF52\u0155\u1E59\u0159\u0211\u0213\u1E5B\u1E5D\u0157\u1E5F\u024D\u027D\uA75B\uA7A7\uA783\u0052\u24C7\uFF32\u0154\u1E58\u0158\u0210\u0212\u1E5A\u1E5C\u0156\u1E5E\u024C\u2C64\uA75A\uA7A6\uA782]/g},
      {'base':'s','letters':/[\u0073\u24E2\uFF53\u015B\u1E65\u015D\u1E61\u0161\u1E67\u1E63\u1E69\u0219\u015F\u023F\uA7A9\uA785\u1E9B\u0053\u24C8\uFF33\u1E9E\u015A\u1E64\u015C\u1E60\u0160\u1E66\u1E62\u1E68\u0218\u015E\u2C7E\uA7A8\uA784]/g},
      {'base':'ss','letters':/[\u00DF]/g},
      {'base':'t','letters':/[\u0074\u24E3\uFF54\u1E6B\u1E97\u0165\u1E6D\u021B\u0163\u1E71\u1E6F\u0167\u01AD\u0288\u2C66\uA787\u0054\u24C9\uFF34\u1E6A\u0164\u1E6C\u021A\u0162\u1E70\u1E6E\u0166\u01AC\u01AE\u023E\uA786]/g},
      {'base':'tz','letters':/[\uA729\uA728]/g},
      {'base':'u','letters':/[\u0075\u24E4\uFF55\u00F9\u00FA\u00FB\u0169\u1E79\u016B\u1E7B\u016D\u01DC\u01D8\u01D6\u01DA\u1EE7\u016F\u0171\u01D4\u0215\u0217\u01B0\u1EEB\u1EE9\u1EEF\u1EED\u1EF1\u1EE5\u1E73\u0173\u1E77\u1E75\u0289\u0055\u24CA\uFF35\u00D9\u00DA\u00DB\u0168\u1E78\u016A\u1E7A\u016C\u01DB\u01D7\u01D5\u01D9\u1EE6\u016E\u0170\u01D3\u0214\u0216\u01AF\u1EEA\u1EE8\u1EEE\u1EEC\u1EF0\u1EE4\u1E72\u0172\u1E76\u1E74\u0244]/g},
      {'base':'ue','letters':/[\u00FC\u00DC]/g},
      {'base':'v','letters':/[\u0076\u24E5\uFF56\u1E7D\u1E7F\u028B\uA75F\u028C\u0056\u24CB\uFF36\u1E7C\u1E7E\u01B2\uA75E\u0245]/g},
      {'base':'vy','letters':/[\uA761\uA760]/g},
      {'base':'w','letters':/[\u0077\u24E6\uFF57\u1E81\u1E83\u0175\u1E87\u1E85\u1E98\u1E89\u2C73\u0057\u24CC\uFF37\u1E80\u1E82\u0174\u1E86\u1E84\u1E88\u2C72]/g},
      {'base':'x','letters':/[\u0078\u24E7\uFF58\u1E8B\u1E8D\u0058\u24CD\uFF38\u1E8A\u1E8C]/g},
      {'base':'y','letters':/[\u0079\u24E8\uFF59\u1EF3\u00FD\u0177\u1EF9\u0233\u1E8F\u00FF\u1EF7\u1E99\u1EF5\u01B4\u024F\u1EFF\u0059\u24CE\uFF39\u1EF2\u00DD\u0176\u1EF8\u0232\u1E8E\u0178\u1EF6\u1EF4\u01B3\u024E\u1EFE]/g},
      {'base':'z','letters':/[\u007A\u24E9\uFF5A\u017A\u1E91\u017C\u017E\u1E93\u1E95\u01B6\u0225\u0240\u2C6C\uA763\u005A\u24CF\uFF3A\u0179\u1E90\u017B\u017D\u1E92\u1E94\u01B5\u0224\u2C7F\u2C6B\uA762]/g}
  ];

  for(var i=0; i<diacriticsMap.length; i++) {
    identifier = identifier.replace(diacriticsMap[i].letters, diacriticsMap[i].base);
  }
  identifier = identifier.replace(/[^a-z0-9]+/gi, '-'); // remaining non-alphanumeric => hyphen
  identifier = identifier.replace(/^[-\d]*|-*$/g, ''); // remove hyphens and numbers at beginning and hyphens at end
  identifier = identifier.toLowerCase(); // to lower
  identifier = identifier.substr(0,projectIdentifierMaxLength); // max characters
  return identifier;
}

function observeProjectName() {
  var f = function() {
    if(!projectIdentifierLocked) {
      $('project_identifier').setValue(generateProjectIdentifier());
    }
  };
  Event.observe('project_name', 'keyup', f);
}

function observeProjectIdentifier() {
  var f = function() {
    if($('project_identifier').getValue() != '' && $('project_identifier').getValue() != generateProjectIdentifier()) {
      projectIdentifierLocked = true;
    } else {
      projectIdentifierLocked = false;
    }
  };
  Event.observe('project_identifier', 'keyup', f);
}

function observeParentIssueField(url) {
  new Ajax.Autocompleter('issue_parent_id',
                         'parent_issue_candidates',
                         url,
                         { minChars: 1,
                           frequency: 0.5,
                           paramName: 'q',
                           updateElement: function(value) {
                             document.getElementById('issue_parent_id').value = value.id;
                           },
                           parameters: 'scope=all'
                           });
}

function observeWorkPackageParentField(url) {
  new Ajax.Autocompleter('work_package_parent_id',
                         'parent_issue_candidates',
                         url,
                         { minChars: 1,
                           frequency: 0.5,
                           paramName: 'q',
                           updateElement: function(value) {
                             document.getElementById('work_package_parent_id').value = value.id;
                           },
                           parameters: 'scope=all'
                           });
}

function observeRelatedIssueField(url) {
  new Ajax.Autocompleter('relation_to_id',
                         'related_issue_candidates',
                         url,
                         { minChars: 1,
                           frequency: 0.5,
                           paramName: 'q',
                           updateElement: function(value) {
                             document.getElementById('relation_to_id').value = value.id;
                           },
                           parameters: 'scope=all'
                           });
}

function setVisible(id, visible) {
  var el = $(id);
  if (el) {if (visible) {el.show();} else {el.hide();}}
}

function observeProjectModules() {
  var f = function() {
    /* Hides types and issues custom fields on the new project form when issue_tracking module is disabled */
    var c = ($('project_enabled_module_names_issue_tracking').checked == true);
    setVisible('project_types', c);
    setVisible('project_issue_custom_fields', c);
  };

  Event.observe(window, 'load', f);
  Event.observe('project_enabled_module_names_issue_tracking', 'change', f);
}

/*
 * Class used to warn user when leaving a page with unsaved textarea
 * Author: mathias.fischer@berlinonline.de
*/

var WarnLeavingUnsaved = Class.create({
	observedForms: false,
	observedElements: false,
	changedForms: false,
	message: null,

	initialize: function(message){
		this.observedForms = $$('form');
		this.observedElements =  $$('textarea');
		this.message = message;

		this.observedElements.each(this.observeChange.bind(this));
		this.observedForms.each(this.submitAction.bind(this));

		window.onbeforeunload = this.unload.bind(this);
	},

	unload: function(){
		if(this.changedForms)
      return this.message;
	},

	setChanged: function(){
    this.changedForms = true;
	},

	setUnchanged: function(){
    this.changedForms = false;
	},

	observeChange: function(element){
    element.observe('change',this.setChanged.bindAsEventListener(this));
	},

	submitAction: function(element){
    element.observe('submit',this.setUnchanged.bindAsEventListener(this));
	}
});

/*
 * 1 - registers a callback which copies the csrf token into the
 * X-CSRF-Token header with each ajax request.  Necessary to
 * work with rails applications which have fixed
 * CVE-2011-0447
 * 2 - shows and hides ajax indicator
 */
document.observe("dom:loaded", function() {
  Ajax.Responders.register({
    onCreate: function(request){
      var csrf_meta_tag = $$('meta[name=csrf-token]')[0];

      if (!request.options.requestHeaders) {
        request.options.requestHeaders = {};
      }

      if (csrf_meta_tag) {
        var header = 'X-CSRF-Token',
        token = csrf_meta_tag.readAttribute('content');

        request.options.requestHeaders[header] = token;
      }

      request.options.requestHeaders['X-Authentication-Scheme'] = "Session";

      if ($('ajax-indicator') && Ajax.activeRequestCount > 0) {
        Element.show('ajax-indicator');
      }
    },
    onComplete: function(request, result){
      if ($('ajax-indicator') && Ajax.activeRequestCount == 0) {
        Element.hide('ajax-indicator');
      }
      addClickEventToAllErrorMessages();
    }
  });
});

function hideOnLoad() {
  $$('.hol').each(function(el) {
  	el.hide();
	});
}

function addClickEventToAllErrorMessages() {
  $$('a.afocus').each(function(a) {
    $(a).observe('click', function(event) {
      var field;
      field = $($(a).readAttribute('href').substr(1));
      if (field == null) {
        // Cut off '_id' (necessary for select boxes)
        field = $($(a).readAttribute('href').substr(1).concat('_id'));
      }
      if (field) {
        field.down('input, textarea, select').focus();
      }
      Event.stop(event);
      return false;
    });
  });
}

function toggleEmailDecoratorFields() {
  lang = jQuery("#emails_decorators_switch").val();
  jQuery(".emails_decorators").hide();
  jQuery("#emails_decorators_" + lang).show();
}

$(document).observe('dom:loaded', function() {
  // Set focus on first error message
  var error_focus = $$('a.afocus').first();
  var input_focus = $$('.autofocus').first();
  if (error_focus != undefined) {
    error_focus.focus();
  }
  else if (input_focus != undefined){
    input_focus.focus();
    if (input_focus.tagName === "INPUT") {
      input_focus.select();
    }
  }
  // Focus on field with error
  addClickEventToAllErrorMessages();
});

Event.observe(window, 'load', hideOnLoad);

// a few constants for animations speeds, etc.
var animationRate = 100;

/* jQuery code from #263 */
// returns viewport height
jQuery.viewportHeight = function() {
     return self.innerHeight ||
        jQuery.boxModel && document.documentElement.clientHeight ||
        document.body.clientHeight;
};


/*
* 1 - registers a callback which copies the csrf token into the
* X-CSRF-Token header with each ajax request.  Necessary to
* work with rails applications which have fixed
* CVE-2011-0447
* 2 - shows and hides ajax indicator
*/
jQuery(document).ready(function($) {
  document.ajaxActive = false;
  $(document).ajaxSend(function (event, request) {
    document.ajaxActive = true;
    var csrf_meta_tag = $('meta[name=csrf-token]');

    if (csrf_meta_tag) {
      var header = 'X-CSRF-Token',
      token = csrf_meta_tag.attr('content');

      request.setRequestHeader(header, token);
    }

    request.setRequestHeader('X-Authentication-Scheme', "Session");
  });
  // ajaxStop gets called when ALL Requests finish, so we won't need a counter as in PT
  $(document).ajaxStop(function () {
    document.ajaxActive = false;
    if ($('#ajax-indicator')) {
      $('#ajax-indicator').hide();
    }
    addClickEventToAllErrorMessages();
  });

  $.extend($.fn.select2.defaults, {
    formatNoMatches: function () {
      return I18n.t("js.select2.no_matches");
    },
    formatInputTooShort: function (input, min) {
      return I18n.t("js.select2.input_too_short", {count: min - input.length});
    },
    formatSelectionTooBig: function (limit) {
      return I18n.t("js.select2.selection_too_big", {limit: limit});
    },
    formatLoadMore: function (pageNumber) {
      return I18n.t("js.select2.load_more");
    },
    formatSearching: function () {
      return I18n.t("js.select2.searching");
    }
  });

  $('#project-search-container .select2-select').each(function (ix, select) {
    var PROJECT_JUMP_BOX_PAGE_SIZE = 50;

    select = $(select);
    var select2,
        menu = select.parents('li.drop-down'),
        that = this;

    select.select2({
        formatResult : OpenProject.Helpers.Search.formatter,
        matcher      : OpenProject.Helpers.Search.matcher,
        query        : OpenProject.Helpers.Search.projectQueryWithHierarchy(
                                    jQuery.proxy(openProject, 'fetchProjects'),
                                    PROJECT_JUMP_BOX_PAGE_SIZE),
        dropdownCssClass : "project-search-results",
        containerCssClass : "select2-select",
      }).
      on('change', function (e) {
        // this handles expected 'new-tab behaviour'
        if (e.val) {
          // jQuery sets metaKey to true when pressing ctrl
          if (e.metaKey) {
            window.open(select2.data().project.url);
          } else {
            window.location = select2.data().project.url;
          }
        }
      }).
      on('close', function () {
        if (menu.is('.open')) {
          menu.trigger("closeMenu");
        }
      });

    select2 = select.data('select2');

    // Adding an event handler to change select2's default behavior concerning
    // TAB and ESC
    select2.search.keydown(function (e) {
      switch (e.which) {
        case 9: // TAB
          closestVisible = select2.container.children(".select2-choice").closest(":visible");
          if (e.shiftKey) {
            closestVisible.previousElementInDom(":input:visible, a:visible").focus();
          } else {
            closestVisible.nextElementInDom(":input:visible, a:visible").focus();
          }
          e.stopImmediatePropagation();
          e.preventDefault();
          return false;
        case 27: // ESC
          e.stopImmediatePropagation();
          e.preventDefault();
          return false;
      }
    });
    // Moving the newly attached handler to the beginning of the handler chain
    select2.search.data('events').keydown.unshift(select2.search.data('events').keydown.pop());

    menu.bind("closed", function () {
      // Close select2 result list, when menu is closed
      select2.close();
    });

    menu.bind("opened", function () {
      // Open select2 element, when menu is opened
      select2.open();

      setTimeout(function () {
        $("#select2-drop-mask").hide();
      }, 50);

      // Include input in tab cycle by attaching keydown handlers to previous
      // and next interactive DOM element.
      select2.container.previousElementInDom(":input:visible, a:visible").keydown(function (e) {
        if (!e.shiftKey && e.which === 9) {
          select2.search.focus();
          e.preventDefault();
        }
      });

      select2.container.nextElementInDom(":input:visible:not(.select2-input), a:visible:not(.select2-input)").keydown(function (e) {
        if (e.shiftKey && e.which === 9 && select2.search.is(":visible")) {
          select2.search.focus();
          e.preventDefault();
        }
      });
    });
  });

	// file table thumbnails
	$("table a.has-thumb").hover(function() {
		$(this).removeAttr("title").toggleClass("active");

		// grab the image dimensions to position it properly
		var thumbImg = $(this).find("img");
		var thumbImgLeft = -(thumbImg.outerWidth() );
		var thumbImgTop = -(thumbImg.height() / 2 );
		thumbImg.css({top: thumbImgTop, left: thumbImgLeft}).show();

	}, function() {
		$(this).toggleClass("active").find("img").hide();
	});

	// show/hide the files table
	$(".attachments h4").click(function() {
	  $(this).toggleClass("closed").next().slideToggle(animationRate);
	});

	// deal with potentially problematic super-long titles
	$(".title-bar h2").css({paddingRight: $(".title-bar-actions").outerWidth() + 15 });

$(window).resize(function() {
    // wait 200 milliseconds for no further resize event
    // then readjust breadcrumb

    if(this.resizeTO) clearTimeout(this.resizeTO);
    this.resizeTO = setTimeout(function() {
        $(this).trigger('resizeEnd');
    }, 200);
});

  $.fn.mySlide = function(callback) {
    if (parseInt($.browser.version, 10) < 8 && $.browser.msie) {
      // no animations, just toggle
      this.toggle();
       if (typeof callback === 'function') {
         callback.apply(this);
       }
      // this forces IE to redraw the menu area, un-bollocksing things
      $("#main-menu").css({paddingBottom:5}).animate({paddingBottom:0}, 10);
    } else {
      this.slideToggle(animationRate,callback);
    }

    return this;
  };

  // Do not close the login window when using it
  $('#nav-login-content').click(function(event){
    event.stopPropagation();
  });

  jQuery('table.cal div.issue.tooltip').each(function(){
    var div = $(this);
    div.find('a').first().focus(function(){
      div.addClass('hover');
    });
    div.find('a').first().blur(function(){
      div.removeClass('hover');
    });
  });

});



var Administration = (function ($) {
  var update_default_language_options,
      init_language_selection_handling,
      toggle_default_language_select;

  update_default_language_options = function (input) {
    var default_language_select = $('#setting_default_language select'),
        default_language_select_active;

    if (input.attr('checked')) {
      default_language_select.find('option[value="' + input.val() + '"]').removeAttr('disabled');
    } else {
      default_language_select.find('option[value="' + input.val() + '"]').attr('disabled', 'disabled');
    }

    default_language_select_active = default_language_select.find('option:not([disabled="disabled"])');

    toggle_disabled_state(default_language_select_active.size() === 0);

    if (default_language_select_active.size() === 1) {
      default_language_select_active.attr('selected', true);
    } else if (default_language_select.val() === input.val() && !input.attr('checked')) {
      default_language_select_active.first().attr('selected', true);
    }
  };

  toggle_disabled_state = function (active) {
    $('#setting_default_language select').attr('disabled', active)
                                         .closest('form')
                                         .find('input:submit')
                                         .attr('disabled', active);
  };

  init_language_selection_handling = function () {
    $('#setting_available_languages input:not([checked="checked"])').each(function (index, input) {
      update_default_language_options($(input));
    });
    $('#setting_available_languages input').click(function () {
      update_default_language_options($(this));
    });
  };

  return {
    init_language_selection_handling: init_language_selection_handling
  };
}(jQuery));

var I18nForms = (function ($) {
  var event_handler,
      init,
      id_memo = {},
      memorize_ids,
      submit_preparer;

  event_handler = (function() {
    var active_locale_selectors,
        add_locale_fields,
        destroy_locale,
        init,
        observe_add_locale_link,
        observe_destroy_locale_links,
        select_first_untaken_option,
        taken_options,
        update_add_link_status,
        update_destroy_link_status,
        update_interaction_elements,
        update_locale_availability;

    active_locale_selectors = function (localized_p) {
      return localized_p.find('.locale_selector');
    };

    add_locale_fields = function (localized_p) {
      var backup = localized_p.find('.translation').first(),
          add_link = localized_p.find('.add_locale'),
          new_items = backup.clone();

      new_items.find('input, textarea').val("");
      new_items.insertBefore(add_link);

      select_first_untaken_option(new_items.find('.locale_selector'), active_locale_selectors(localized_p));
      update_interaction_elements(localized_p);

      new_items.find('.destroy_locale').click(function () {
        destroy_locale($(this));
      });
    };

    destroy_locale = function (element) {
      var localized_p = element.closest('p');

      element.closest('.translation').remove();

      update_interaction_elements(localized_p);
    };

    observe_add_locale_link = function () {
      $('.add_locale').click(function () {
        add_locale_fields($(this).closest('p'));
      });
    };

    observe_destroy_locale_links = function () {
      $('.destroy_locale').click(function () {
        destroy_locale($(this));
      });
    };

    select_first_untaken_option = function (select, others) {
      var taken,
          available;

      taken = taken_options(others);

      available = select.find('option').map(function (index, element) {
        element = $(element);

        if (taken.indexOf(element.val()) < 0) {
          return element.val();
        }
      }).get();

      select.val(available.pop());
    };

    update_add_link_status = function (localized_p) {
      var indicator_selector = active_locale_selectors(localized_p),
          taken = taken_options(indicator_selector),
          all_options,
          available,
          add_link = localized_p.find('.add_locale');

      available = indicator_selector.first().find('option').map(function (index, element) {
        element = $(element);

        if (taken.indexOf(element.val()) < 0) {
          return element.val();
        }
      }).get();

      add_link.toggle(available.size() > 0);
    };

    update_destroy_link_status = function (localized_p) {
      var active_selectors = active_locale_selectors(localized_p);

      localized_p.find('.destroy_locale').toggle(active_selectors.size() > 1);
    };

    update_interaction_elements = function (localized_p) {
      update_locale_availability(localized_p);
      update_add_link_status(localized_p);
      update_destroy_link_status(localized_p);
    };

    update_locale_availability = function (localized_p) {
      var active_selectors = active_locale_selectors(localized_p),
          active_locales = taken_options(active_selectors);

      active_selectors.each(function (index, element) {
        var selector = $(element),
            selected_value = selector.val();

        selector.find('option').each(function (index, element) {
          var option = $(element);

          option.attr('disabled', (active_locales.indexOf(option.val()) >= 0 && option.val() !== selected_value));
        });
      });
    };

    taken_options = function (select_collection) {
      return select_collection.map(function (index, element) {
        element = $(element);

        return element.val();
      }).get();
    };

    init = function () {
      observe_add_locale_link();
      observe_destroy_locale_links();

      $('form .translation').closest('p').each(function (i, element) {
        element = $(element);
        update_interaction_elements(element);
      });
    }

    return {
      init : init
    }
  })();


  memorize_ids = function (form) {
    var translations = $('.translation');

    translations.each(function (i, element) {
      var id,
          locale;
      element = $(element);

      id = element.find(".translation_id").val();
      locale = element.find(".locale_selector").val();

      if (locale !== "" && id !== "" && id_memo[locale] === undefined) {
        id_memo[locale] = id;
      }
    });
  };

  submit_preparer = (function() {
    var add_destroy_elements,
        add_empty_values_for_missing_attributes,
        collect_elements_by_locale,
        collect_translation_classes,
        element_numerator,
        prepare,
        unify_translations_across_attribute;

    add_destroy_elements = function(locale) {
      var translation,
          destroy_element,
          id_element,
          destroy_id_elements;

      translation = $('.translation').first();
      destroy_id_elements = translation.find('.destroy_flag, .translation_id').clone();
      destroy_element = translation.filter('.destroy_flag');
      id_element = translation.filter('.translation_id');

      translation.after(destroy_id_elements);

      destroy_id_elements.filter('.destroy_flag').attr('disabled', false);
      destroy_id_elements.filter('.translation_id').attr('value', id_memo[locale]);

      element_numerator.set_next_number_in_name(destroy_id_elements);
    };

    add_empty_values_for_missing_attributes = function (locale, translation_classes) {
      var new_translations = $('');

      $.each(translation_classes, function(i, translated_attribute) {
        var translations = $('.' + translated_attribute),
            locale_selectors = translations.find('.locale_selector'),
            included,
            new_translation;

        included = locale_selectors.map(function(i, element) {
          return $(element).val();
        }).get().indexOf(locale) >= 0;

        if (!included) {
          new_translation = translations.first().clone();
          new_translation.hide();
          new_translation.find('.destroy_flag').val('1')
                                               .attr('disabled', false);
          new_translation.find('input, textarea').val('');
          new_translation.find('.locale_selector').val(locale);
          new_translation.insertAfter(translations.first());

          new_translations = new_translations.add(new_translation);
        }
      });

      return new_translations;
    };

    collect_elements_by_locale = function(translations) {
      var locales = {};

      translations.each(function (i, element) {
        var locale;

        element = $(element);
        locale = element.find('.locale_selector').val();

        if (locales[locale] === undefined) {
          locales[locale] = element;
        } else {
          locales[locale] = locales[locale].add(element);
        }
      });

      return locales;
    };

    collect_translation_classes = function (translations) {
      var translation_classes = [];

      translations.each(function (i, element) {
        var translation_class;

        element = $(element);

        translation_class = /\w+_translation/.exec(element.attr('class'))[0];

        if (translation_classes.indexOf(translation_class) < 0) {
          translation_classes.push(translation_class);
        }
      });

      return translation_classes;
    };

    element_numerator = (function() {
      var init,
          num,
          number_matcher = /([\[_])(\d+)([\]\[_]{1,2}\w+\]?$)/,
          replace_number_in_name,
          set_next_number_in_name;

      init = function() {
        num = 0;
      }

      set_next_number_in_name = function(elements) {
        replace_number_in_name(elements, num);
        num += 1;
      }

      replace_number_in_name = function (element, rep_number) {
        element.each(function (index, e) {
          e = $(e);
          e.attr('name', e.attr('name').replace(number_matcher, "$1" + rep_number + "$3"));
        });
      };

      return {
        init : init,
        set_next_number_in_name : set_next_number_in_name
      };
    })();

    prepare = function (form) {
      var locales,
          translation_classes = [],
          translations = form.find('.translation');

      element_numerator.init();

      translation_classes = collect_translation_classes(translations);
      locales = collect_elements_by_locale(translations);

      $.each(locales, function(locale, elements) {
        empty_value_elements = add_empty_values_for_missing_attributes(locale, translation_classes);
        unify_translations_across_attribute(locale, elements.add(empty_value_elements), translation_classes);
      });

      $.each(id_memo, function(locale, id) {
        if (!locales.hasOwnProperty(locale)) {
          add_destroy_elements(locale);
        }
      });
    };

    unify_translations_across_attribute = function (locale, elements, translation_classes) {
      var current_id,
          i,
          to_destroy,
          to_keep;

      element_numerator.set_next_number_in_name(elements.find('select, textarea, input'));

      current_id = id_memo[locale] !== undefined ? id_memo[locale] : '';
      elements.find('.translation_id').val(current_id);

      to_destroy = elements.filter(':hidden');
      to_keep = elements.filter(':visible');

      if (to_keep.size() > 0) {
        to_destroy.find('.destroy_flag').attr('disabled', true);
        for (i = 0; i < translation_classes.size(); i += 1) {
          if (to_keep.filter("." + translation_classes[i]).size() === 0) {
            to_destroy.filter("." + translation_classes[i]).find('input[type=text], textarea').val('');
          }
        }
      }
    };

    return {
      prepare : prepare
    };
  })();

  init = function () {
    var translated_paragraph = $('form .translation').closest('p');

    if (translated_paragraph.size() > 0) {
      memorize_ids();
      event_handler.init();

      translated_paragraph.closest('form').submit(function () {
        submit_preparer.prepare($(this));
        // allow default behaviour
      });

    }
  };

  return {
    init : init
  };
}(jQuery));

jQuery(document).ready(I18nForms.init);

var SubmitConfirm = (function($) {
  var init;

  init = function(element, question) {
    element.submit(function() {
      if(!confirm(question)) {
        return false;
      }
    });
  };

  return {
    init: init
  };
})(jQuery);

var Preview = (function ($) {
  $('document').ready(function() {
      $('html').on('click','a.preview', function() {
        $.ajax({
          url: $(this).attr('href'),
          type: 'PUT',
          data: $("#" + $(this).attr('id').replace(/-preview/, "")).serialize().replace('_method=put&', ''),
          success: function(data) { $('#preview').html(data);
                                    $('html, body').animate({
                                        scrollTop: $('#preview').offset().top
                                      },
                                      'slow');
                                  }
        });

        return false;
      });
    });
})(jQuery);