js/util.js

   1 /*
   2  * StatusNet - a distributed open-source microblogging tool
   3  * Copyright (C) 2008, StatusNet, Inc.
   4  *
   5  * This program is free software: you can redistribute it and/or modify
   6  * it under the terms of the GNU Affero General Public License as published by
   7  * the Free Software Foundation, either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU Affero General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Affero General Public License
  16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  * @category  UI interaction
  19  * @package   StatusNet
  20  * @author    Sarven Capadisli <csarven@status.net>
  21  * @author    Evan Prodromou <evan@status.net>
  22  * @author    Brion Vibber <brion@status.net>
  23  * @copyright 2009,2010 StatusNet, Inc.
  24  * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
  25  * @link      http://status.net/
  26  */
  27
  28 var SN = { // StatusNet
  29     C: { // Config
  30         I: { // Init
  31             CounterBlackout: false,
  32             MaxLength: 140,
  33             PatternUsername: /^[0-9a-zA-Z\-_.]*$/,
  34             HTTP20x30x: [200, 201, 202, 203, 204, 205, 206, 300, 301, 302, 303, 304, 305, 306, 307]
  35         },
  36
  37         /**
  38          * @fixme are these worth the trouble? They seem to mostly just duplicate
  39          * themselves while slightly obscuring the actual selector, so it's hard
  40          * to pop over to the HTML and find something.
  41          *
  42          * In theory, minification could reduce them to shorter variable names,
  43          * but at present that doesn't happen with yui-compressor.
  44          */
  45         S: { // Selector
  46             Disabled: 'disabled',
  47             Warning: 'warning',
  48             Error: 'error',
  49             Success: 'success',
  50             Processing: 'processing',
  51             CommandResult: 'command_result',
  52             FormNotice: 'form_notice',
  53             NoticeDataText: 'notice_data-text',
  54             NoticeTextCount: 'notice_text-count',
  55             NoticeInReplyTo: 'notice_in-reply-to',
  56             NoticeDataAttach: 'notice_data-attach',
  57             NoticeDataAttachSelected: 'notice_data-attach_selected',
  58             NoticeActionSubmit: 'notice_action-submit',
  59             NoticeLat: 'notice_data-lat',
  60             NoticeLon: 'notice_data-lon',
  61             NoticeLocationId: 'notice_data-location_id',
  62             NoticeLocationNs: 'notice_data-location_ns',
  63             NoticeGeoName: 'notice_data-geo_name',
  64             NoticeDataGeo: 'notice_data-geo',
  65             NoticeDataGeoCookie: 'NoticeDataGeo',
  66             NoticeDataGeoSelected: 'notice_data-geo_selected',
  67             StatusNetInstance:'StatusNetInstance'
  68         }
  69     },
  70
  71     /**
  72      * Map of localized message strings exported to script from the PHP
  73      * side via Action::getScriptMessages().
  74      *
  75      * Retrieve them via SN.msg(); this array is an implementation detail.
  76      *
  77      * @access private
  78      */
  79     messages: {},
  80
  81     /**
  82      * Grabs a localized string that's been previously exported to us
  83      * from server-side code via Action::getScriptMessages().
  84      *
  85      * @example alert(SN.msg('coolplugin-failed'));
  86      *
  87      * @param {String} key: string key name to pull from message index
  88      * @return matching localized message string
  89      */
  90     msg: function(key) {
  91         if (typeof SN.messages[key] == "undefined") {
  92             return '[' + key + ']';
  93         } else {
  94             return SN.messages[key];
  95         }
  96     },
  97
  98     U: { // Utils
  99         /**
 100          * Setup function -- DOES NOT trigger actions immediately.
 101          *
 102          * Sets up event handlers on the new notice form.
 103          *
 104          * @param {jQuery} form: jQuery object whose first matching element is the form
 105          * @access private
 106          */
 107         FormNoticeEnhancements: function(form) {
 108             if (jQuery.data(form[0], 'ElementData') === undefined) {
 109                 MaxLength = form.find('#'+SN.C.S.NoticeTextCount).text();
 110                 if (typeof(MaxLength) == 'undefined') {
 111                      MaxLength = SN.C.I.MaxLength;
 112                 }
 113                 jQuery.data(form[0], 'ElementData', {MaxLength:MaxLength});
 114
 115                 SN.U.Counter(form);
 116
 117                 NDT = form.find('#'+SN.C.S.NoticeDataText);
 118
 119                 NDT.bind('keyup', function(e) {
 120                     SN.U.Counter(form);
 121                 });
 122
 123                 var delayedUpdate= function(e) {
 124                     // Cut and paste events fire *before* the operation,
 125                     // so we need to trigger an update in a little bit.
 126                     // This would be so much easier if the 'change' event
 127                     // actually fired every time the value changed. :P
 128                     window.setTimeout(function() {
 129                         SN.U.Counter(form);
 130                     }, 50);
 131                 };
 132                 // Note there's still no event for mouse-triggered 'delete'.
 133                 NDT.bind('cut', delayedUpdate)
 134                    .bind('paste', delayedUpdate);
 135
 136                 NDT.bind('keydown', function(e) {
 137                     SN.U.SubmitOnReturn(e, form);
 138                 });
 139             }
 140             else {
 141                 form.find('#'+SN.C.S.NoticeTextCount).text(jQuery.data(form[0], 'ElementData').MaxLength);
 142             }
 143
 144             if ($('body')[0].id != 'conversation' && window.location.hash.length === 0 && $(window).scrollTop() == 0) {
 145                 form.find('textarea').focus();
 146             }
 147         },
 148
 149         /**
 150          * To be called from keydown event handler on the notice import form.
 151          * Checks if return or enter key was pressed, and if so attempts to
 152          * submit the form and cancel standard processing of the enter key.
 153          *
 154          * @param {Event} event
 155          * @param {jQuery} el: jQuery object whose first element is the notice posting form
 156          *
 157          * @return {boolean} whether to cancel the event? Does this actually pass through?
 158          * @access private
 159          */
 160         SubmitOnReturn: function(event, el) {
 161             if (event.keyCode == 13 || event.keyCode == 10) {
 162                 el.submit();
 163                 event.preventDefault();
 164                 event.stopPropagation();
 165                 $('#'+el[0].id+' #'+SN.C.S.NoticeDataText).blur();
 166                 $('body').focus();
 167                 return false;
 168             }
 169             return true;
 170         },
 171
 172         /**
 173          * To be called from event handlers on the notice import form.
 174          * Triggers an update of the remaining-characters counter.
 175          *
 176          * Additional counter updates will be suppressed during the
 177          * next half-second to avoid flooding the layout engine with
 178          * updates, followed by another automatic check.
 179          *
 180          * The maximum length is pulled from data established by
 181          * FormNoticeEnhancements.
 182          *
 183          * @param {jQuery} form: jQuery object whose first element is the notice posting form
 184          * @access private
 185          */
 186         Counter: function(form) {
 187             SN.C.I.FormNoticeCurrent = form;
 188
 189             var MaxLength = jQuery.data(form[0], 'ElementData').MaxLength;
 190
 191             if (MaxLength <= 0) {
 192                 return;
 193             }
 194
 195             var remaining = MaxLength - SN.U.CharacterCount(form);
 196             var counter = form.find('#'+SN.C.S.NoticeTextCount);
 197
 198             if (remaining.toString() != counter.text()) {
 199                 if (!SN.C.I.CounterBlackout || remaining === 0) {
 200                     if (counter.text() != String(remaining)) {
 201                         counter.text(remaining);
 202                     }
 203                     if (remaining < 0) {
 204                         form.addClass(SN.C.S.Warning);
 205                     } else {
 206                         form.removeClass(SN.C.S.Warning);
 207                     }
 208                     // Skip updates for the next 500ms.
 209                     // On slower hardware, updating on every keypress is unpleasant.
 210                     if (!SN.C.I.CounterBlackout) {
 211                         SN.C.I.CounterBlackout = true;
 212                         SN.C.I.FormNoticeCurrent = form;
 213                         window.setTimeout("SN.U.ClearCounterBlackout(SN.C.I.FormNoticeCurrent);", 500);
 214                     }
 215                 }
 216             }
 217         },
 218
 219         /**
 220          * Pull the count of characters in the current edit field.
 221          * Plugins replacing the edit control may need to override this.
 222          *
 223          * @param {jQuery} form: jQuery object whose first element is the notice posting form
 224          * @return number of chars
 225          */
 226         CharacterCount: function(form) {
 227             return form.find('#'+SN.C.S.NoticeDataText).val().length;
 228         },
 229
 230         /**
 231          * Called internally after the counter update blackout period expires;
 232          * runs another update to make sure we didn't miss anything.
 233          *
 234          * @param {jQuery} form: jQuery object whose first element is the notice posting form
 235          * @access private
 236          */
 237         ClearCounterBlackout: function(form) {
 238             // Allow keyup events to poke the counter again
 239             SN.C.I.CounterBlackout = false;
 240             // Check if the string changed since we last looked
 241             SN.U.Counter(form);
 242         },
 243
 244         /**
 245          * Grabs form data and submits it asynchronously, with 'ajax=1'
 246          * parameter added to the rest.
 247          *
 248          * If a successful response includes another form, that form
 249          * will be extracted and copied in, replacing the original form.
 250          * If there's no form, the first paragraph will be used.
 251          *
 252          * @fixme can sometimes explode confusingly if returnd data is bogus
 253          * @fixme error handling is pretty vague
 254          * @fixme can't submit file uploads
 255          *
 256          * @param {jQuery} form: jQuery object whose first element is a form
 257          *
 258          * @access public
 259          */
 260         FormXHR: function(form) {
 261             $.ajax({
 262                 type: 'POST',
 263                 dataType: 'xml',
 264                 url: form.attr('action'),
 265                 data: form.serialize() + '&ajax=1',
 266                 beforeSend: function(xhr) {
 267                     form
 268                         .addClass(SN.C.S.Processing)
 269                         .find('.submit')
 270                             .addClass(SN.C.S.Disabled)
 271                             .attr(SN.C.S.Disabled, SN.C.S.Disabled);
 272                 },
 273                 error: function (xhr, textStatus, errorThrown) {
 274                     alert(errorThrown || textStatus);
 275                 },
 276                 success: function(data, textStatus) {
 277                     if (typeof($('form', data)[0]) != 'undefined') {
 278                         form_new = document._importNode($('form', data)[0], true);
 279                         form.replaceWith(form_new);
 280                     }
 281                     else {
 282                         form.replaceWith(document._importNode($('p', data)[0], true));
 283                     }
 284                 }
 285             });
 286         },
 287
 288         /**
 289          * Setup function -- DOES NOT trigger actions immediately.
 290          *
 291          * Sets up event handlers for special-cased async submission of the
 292          * notice-posting form, including some pre-post validation.
 293          *
 294          * Unlike FormXHR() this does NOT submit the form immediately!
 295          * It sets up event handlers so that any method of submitting the
 296          * form (click on submit button, enter, submit() etc) will trigger
 297          * it properly.
 298          *
 299          * Also unlike FormXHR(), this system will use a hidden iframe
 300          * automatically to handle file uploads via <input type="file">
 301          * controls.
 302          *
 303          * @fixme tl;dr
 304          * @fixme vast swaths of duplicate code and really long variable names clutter this function up real bad
 305          * @fixme error handling is unreliable
 306          * @fixme cookieValue is a global variable, but probably shouldn't be
 307          * @fixme saving the location cache cookies should be split out
 308          * @fixme some error messages are hardcoded english: needs i18n
 309          * @fixme special-case for bookmarklet is confusing and uses a global var "self". Is this ok?
 310          *
 311          * @param {jQuery} form: jQuery object whose first element is a form
 312          *
 313          * @access public
 314          */
 315         FormNoticeXHR: function(form) {
 316             SN.C.I.NoticeDataGeo = {};
 317             form.append('<input type="hidden" name="ajax" value="1"/>');
 318             form.ajaxForm({
 319                 dataType: 'xml',
 320                 timeout: '60000',
 321                 beforeSend: function(formData) {
 322                     if (form.find('#'+SN.C.S.NoticeDataText)[0].value.length === 0) {
 323                         form.addClass(SN.C.S.Warning);
 324                         return false;
 325                     }
 326                     form
 327                         .addClass(SN.C.S.Processing)
 328                         .find('#'+SN.C.S.NoticeActionSubmit)
 329                             .addClass(SN.C.S.Disabled)
 330                             .attr(SN.C.S.Disabled, SN.C.S.Disabled);
 331
 332                     SN.C.I.NoticeDataGeo.NLat = $('#'+SN.C.S.NoticeLat).val();
 333                     SN.C.I.NoticeDataGeo.NLon = $('#'+SN.C.S.NoticeLon).val();
 334                     SN.C.I.NoticeDataGeo.NLNS = $('#'+SN.C.S.NoticeLocationNs).val();
 335                     SN.C.I.NoticeDataGeo.NLID = $('#'+SN.C.S.NoticeLocationId).val();
 336                     SN.C.I.NoticeDataGeo.NDG = $('#'+SN.C.S.NoticeDataGeo).attr('checked');
 337
 338                     cookieValue = $.cookie(SN.C.S.NoticeDataGeoCookie);
 339
 340                     if (cookieValue !== null && cookieValue != 'disabled') {
 341                         cookieValue = JSON.parse(cookieValue);
 342                         SN.C.I.NoticeDataGeo.NLat = $('#'+SN.C.S.NoticeLat).val(cookieValue.NLat).val();
 343                         SN.C.I.NoticeDataGeo.NLon = $('#'+SN.C.S.NoticeLon).val(cookieValue.NLon).val();
 344                         if ($('#'+SN.C.S.NoticeLocationNs).val(cookieValue.NLNS)) {
 345                             SN.C.I.NoticeDataGeo.NLNS = $('#'+SN.C.S.NoticeLocationNs).val(cookieValue.NLNS).val();
 346                             SN.C.I.NoticeDataGeo.NLID = $('#'+SN.C.S.NoticeLocationId).val(cookieValue.NLID).val();
 347                         }
 348                     }
 349                     if (cookieValue == 'disabled') {
 350                         SN.C.I.NoticeDataGeo.NDG = $('#'+SN.C.S.NoticeDataGeo).attr('checked', false).attr('checked');
 351                     }
 352                     else {
 353                         SN.C.I.NoticeDataGeo.NDG = $('#'+SN.C.S.NoticeDataGeo).attr('checked', true).attr('checked');
 354                     }
 355
 356                     return true;
 357                 },
 358                 error: function (xhr, textStatus, errorThrown) {
 359                     form
 360                         .removeClass(SN.C.S.Processing)
 361                         .find('#'+SN.C.S.NoticeActionSubmit)
 362                             .removeClass(SN.C.S.Disabled)
 363                             .removeAttr(SN.C.S.Disabled, SN.C.S.Disabled);
 364                     form.find('.form_response').remove();
 365                     if (textStatus == 'timeout') {
 366                         form.append('<p class="form_response error">Sorry! We had trouble sending your notice. The servers are overloaded. Please try again, and contact the site administrator if this problem persists.</p>');
 367                     }
 368                     else {
 369                         var response = SN.U.GetResponseXML(xhr);
 370                         if ($('.'+SN.C.S.Error, response).length > 0) {
 371                             form.append(document._importNode($('.'+SN.C.S.Error, response)[0], true));
 372                         }
 373                         else {
 374                             if (parseInt(xhr.status) === 0 || jQuery.inArray(parseInt(xhr.status), SN.C.I.HTTP20x30x) >= 0) {
 375                                 form
 376                                     .resetForm()
 377                                     .find('#'+SN.C.S.NoticeDataAttachSelected).remove();
 378                                 SN.U.FormNoticeEnhancements(form);
 379                             }
 380                             else {
 381                                 form.append('<p class="form_response error">(Sorry! We had trouble sending your notice ('+xhr.status+' '+xhr.statusText+'). Please report the problem to the site administrator if this happens again.</p>');
 382                             }
 383                         }
 384                     }
 385                 },
 386                 success: function(data, textStatus) {
 387                     form.find('.form_response').remove();
 388                     var result;
 389                     if ($('#'+SN.C.S.Error, data).length > 0) {
 390                         result = document._importNode($('p', data)[0], true);
 391                         result = result.textContent || result.innerHTML;
 392                         form.append('<p class="form_response error">'+result+'</p>');
 393                     }
 394                     else {
 395                         if($('body')[0].id == 'bookmarklet') {
 396                             self.close();
 397                         }
 398
 399                         if ($('#'+SN.C.S.CommandResult, data).length > 0) {
 400                             result = document._importNode($('p', data)[0], true);
 401                             result = result.textContent || result.innerHTML;
 402                             form.append('<p class="form_response success">'+result+'</p>');
 403                         }
 404                         else {
 405                             // New notice post was successful. If on our timeline, show it!
 406                             var notice = document._importNode($('li', data)[0], true);
 407                             var notices = $('#notices_primary .notices');
 408                             if (notices.length > 0 && SN.U.belongsOnTimeline(notice)) {
 409                                 if ($('#'+notice.id).length === 0) {
 410                                     var notice_irt_value = $('#'+SN.C.S.NoticeInReplyTo).val();
 411                                     var notice_irt = '#notices_primary #notice-'+notice_irt_value;
 412                                     if($('body')[0].id == 'conversation') {
 413                                         if(notice_irt_value.length > 0 && $(notice_irt+' .notices').length < 1) {
 414                                             $(notice_irt).append('<ul class="notices"></ul>');
 415                                         }
 416                                         $($(notice_irt+' .notices')[0]).append(notice);
 417                                     }
 418                                     else {
 419                                         notices.prepend(notice);
 420                                     }
 421                                     $('#'+notice.id)
 422                                         .css({display:'none'})
 423                                         .fadeIn(2500);
 424                                     SN.U.NoticeWithAttachment($('#'+notice.id));
 425                                     SN.U.NoticeReplyTo($('#'+notice.id));
 426                                 }
 427                             }
 428                             else {
 429                                 // Not on a timeline that this belongs on?
 430                                 // Just show a success message.
 431                                 result = document._importNode($('title', data)[0], true);
 432                                 result_title = result.textContent || result.innerHTML;
 433                                 form.append('<p class="form_response success">'+result_title+'</p>');
 434                             }
 435                         }
 436                         form.resetForm();
 437                         form.find('#'+SN.C.S.NoticeInReplyTo).val('');
 438                         form.find('#'+SN.C.S.NoticeDataAttachSelected).remove();
 439                         SN.U.FormNoticeEnhancements(form);
 440                     }
 441                 },
 442                 complete: function(xhr, textStatus) {
 443                     form
 444                         .removeClass(SN.C.S.Processing)
 445                         .find('#'+SN.C.S.NoticeActionSubmit)
 446                             .removeAttr(SN.C.S.Disabled)
 447                             .removeClass(SN.C.S.Disabled);
 448
 449                     $('#'+SN.C.S.NoticeLat).val(SN.C.I.NoticeDataGeo.NLat);
 450                     $('#'+SN.C.S.NoticeLon).val(SN.C.I.NoticeDataGeo.NLon);
 451                     if ($('#'+SN.C.S.NoticeLocationNs)) {
 452                         $('#'+SN.C.S.NoticeLocationNs).val(SN.C.I.NoticeDataGeo.NLNS);
 453                         $('#'+SN.C.S.NoticeLocationId).val(SN.C.I.NoticeDataGeo.NLID);
 454                     }
 455                     $('#'+SN.C.S.NoticeDataGeo).attr('checked', SN.C.I.NoticeDataGeo.NDG);
 456                 }
 457             });
 458         },
 459
 460         /**
 461          * Fetch an XML DOM from an XHR's response data.
 462          *
 463          * Works around unavailable responseXML when document.domain
 464          * has been modified by Meteor or other tools, in some but not
 465          * all browsers.
 466          *
 467          * @param {XMLHTTPRequest} xhr
 468          * @return DOMDocument
 469          */
 470         GetResponseXML: function(xhr) {
 471             try {
 472                 return xhr.responseXML;
 473             } catch (e) {
 474                 return (new DOMParser()).parseFromString(xhr.responseText, "text/xml");
 475             }
 476         },
 477
 478         /**
 479          * Setup function -- DOES NOT trigger actions immediately.
 480          *
 481          * Sets up event handlers on all visible notice's reply buttons to
 482          * tweak the new-notice form with needed variables and focus it
 483          * when pushed.
 484          *
 485          * (This replaces the default reply button behavior to submit
 486          * directly to a form which comes back with a specialized page
 487          * with the form data prefilled.)
 488          *
 489          * @access private
 490          */
 491         NoticeReply: function() {
 492             if ($('#'+SN.C.S.NoticeDataText).length > 0 && $('#content .notice_reply').length > 0) {
 493                 $('#content .notice').each(function() { SN.U.NoticeReplyTo($(this)); });
 494             }
 495         },
 496
 497         /**
 498          * Setup function -- DOES NOT trigger actions immediately.
 499          *
 500          * Sets up event handlers on the given notice's reply button to
 501          * tweak the new-notice form with needed variables and focus it
 502          * when pushed.
 503          *
 504          * (This replaces the default reply button behavior to submit
 505          * directly to a form which comes back with a specialized page
 506          * with the form data prefilled.)
 507          *
 508          * @param {jQuery} notice: jQuery object containing one or more notices
 509          * @access private
 510          */
 511         NoticeReplyTo: function(notice) {
 512             notice.find('.notice_reply').live('click', function() {
 513                 var nickname = ($('.author .nickname', notice).length > 0) ? $($('.author .nickname', notice)[0]) : $('.author .nickname.uid');
 514                 SN.U.NoticeReplySet(nickname.text(), $($('.notice_id', notice)[0]).text());
 515                 return false;
 516             });
 517         },
 518
 519         /**
 520          * Updates the new notice posting form with bits for replying to the
 521          * given user. Adds replyto parameter to the form, and a "@foo" to the
 522          * text area.
 523          *
 524          * @fixme replyto is a global variable, but probably shouldn't be
 525          *
 526          * @param {String} nick
 527          * @param {String} id
 528          */
 529         NoticeReplySet: function(nick,id) {
 530             if (nick.match(SN.C.I.PatternUsername)) {
 531                 var text = $('#'+SN.C.S.NoticeDataText);
 532                 if (text.length > 0) {
 533                     replyto = '@' + nick + ' ';
 534                     text.val(replyto + text.val().replace(RegExp(replyto, 'i'), ''));
 535                     $('#'+SN.C.S.FormNotice+' #'+SN.C.S.NoticeInReplyTo).val(id);
 536
 537                     text[0].focus();
 538                     if (text[0].setSelectionRange) {
 539                         var len = text.val().length;
 540                         text[0].setSelectionRange(len,len);
 541                     }
 542                 }
 543             }
 544         },
 545
 546         /**
 547          * Setup function -- DOES NOT apply immediately.
 548          *
 549          * Sets up event handlers for favor/disfavor forms to submit via XHR.
 550          * Uses 'live' rather than 'bind', so applies to future as well as present items.
 551          */
 552         NoticeFavor: function() {
 553             $('.form_favor').live('click', function() { SN.U.FormXHR($(this)); return false; });
 554             $('.form_disfavor').live('click', function() { SN.U.FormXHR($(this)); return false; });
 555         },
 556
 557         /**
 558          * Setup function -- DOES NOT trigger actions immediately.
 559          *
 560          * Sets up event handlers for repeat forms to toss up a confirmation
 561          * popout before submitting.
 562          *
 563          * Uses 'live' rather than 'bind', so applies to future as well as present items.
 564          */
 565         NoticeRepeat: function() {
 566             $('.form_repeat').live('click', function(e) {
 567                 e.preventDefault();
 568
 569                 SN.U.NoticeRepeatConfirmation($(this));
 570                 return false;
 571             });
 572         },
 573
 574         /**
 575          * Shows a confirmation dialog box variant of the repeat button form.
 576          * This seems to use a technique where the repeat form contains
 577          * _both_ a standalone button _and_ text and buttons for a dialog.
 578          * The dialog will close after its copy of the form is submitted,
 579          * or if you click its 'close' button.
 580          *
 581          * The dialog is created by duplicating the original form and changing
 582          * its style; while clever, this is hard to generalize and probably
 583          * duplicates a lot of unnecessary HTML output.
 584          *
 585          * @fixme create confirmation dialogs through a generalized interface
 586          * that can be reused instead of hardcoded text and styles.
 587          *
 588          * @param {jQuery} form
 589          */
 590         NoticeRepeatConfirmation: function(form) {
 591             var submit_i = form.find('.submit');
 592
 593             var submit = submit_i.clone();
 594             submit
 595                 .addClass('submit_dialogbox')
 596                 .removeClass('submit');
 597             form.append(submit);
 598             submit.bind('click', function() { SN.U.FormXHR(form); return false; });
 599
 600             submit_i.hide();
 601
 602             form
 603                 .addClass('dialogbox')
 604                 .append('<button class="close">&#215;</button>')
 605                 .closest('.notice-options')
 606                     .addClass('opaque');
 607
 608             form.find('button.close').click(function(){
 609                 $(this).remove();
 610
 611                 form
 612                     .removeClass('dialogbox')
 613                     .closest('.notice-options')
 614                         .removeClass('opaque');
 615
 616                 form.find('.submit_dialogbox').remove();
 617                 form.find('.submit').show();
 618
 619                 return false;
 620             });
 621         },
 622
 623         /**
 624          * Setup function -- DOES NOT trigger actions immediately.
 625          */
 626         NoticeAttachments: function() {
 627             $('.notice a.attachment').each(function() {
 628                 SN.U.NoticeWithAttachment($(this).closest('.notice'));
 629             });
 630         },
 631
 632         NoticeWithAttachment: function(notice) {
 633             if (notice.find('.attachment').length === 0) {
 634                 return;
 635             }
 636
 637             var attachment_more = notice.find('.attachment.more');
 638             if (attachment_more.length > 0) {
 639                 $(attachment_more[0]).click(function() {
 640                     var m = $(this);
 641                     m.addClass(SN.C.S.Processing);
 642                     $.get(m.attr('href')+'/ajax', null, function(data) {
 643                         m.parent('.entry-content').html($(data).find('#attachment_view .entry-content').html());
 644                     });
 645
 646                     return false;
 647                 }).attr('title', SN.msg('showmore_tooltip'));
 648             }
 649         },
 650
 651         NoticeDataAttach: function() {
 652             NDA = $('#'+SN.C.S.NoticeDataAttach);
 653             NDA.change(function() {
 654                 S = '<div id="'+SN.C.S.NoticeDataAttachSelected+'" class="'+SN.C.S.Success+'"><code>'+$(this).val()+'</code> <button class="close">&#215;</button></div>';
 655                 NDAS = $('#'+SN.C.S.NoticeDataAttachSelected);
 656                 if (NDAS.length > 0) {
 657                     NDAS.replaceWith(S);
 658                 }
 659                 else {
 660                     $('#'+SN.C.S.FormNotice).append(S);
 661                 }
 662                 $('#'+SN.C.S.NoticeDataAttachSelected+' button').click(function(){
 663                     $('#'+SN.C.S.NoticeDataAttachSelected).remove();
 664                     NDA.val('');
 665
 666                     return false;
 667                 });
 668                 if (typeof this.files == "object") {
 669                     // Some newer browsers will let us fetch the files for preview.
 670                     for (var i = 0; i < this.files.length; i++) {
 671                         SN.U.PreviewAttach(this.files[i]);
 672                     }
 673                 }
 674             });
 675         },
 676
 677         /**
 678          * For browsers with FileAPI support: make a thumbnail if possible,
 679          * and append it into the attachment display widget.
 680          *
 681          * Known good:
 682          * - Firefox 3.6.6, 4.0b7
 683          * - Chrome 8.0.552.210
 684          *
 685          * Known ok metadata, can't get contents:
 686          * - Safari 5.0.2
 687          *
 688          * Known fail:
 689          * - Opera 10.63, 11 beta (no input.files interface)
 690          *
 691          * @param {File} file
 692          *
 693          * @todo use configured thumbnail size
 694          * @todo detect pixel size?
 695          * @todo should we render a thumbnail to a canvas and then use the smaller image?
 696          */
 697         PreviewAttach: function(file) {
 698             var tooltip = file.type + ' ' + Math.round(file.size / 1024) + 'KB';
 699             var preview = true;
 700
 701             var blobAsDataURL;
 702             if (typeof window.createObjectURL != "undefined") {
 703                 /**
 704                  * createObjectURL lets us reference the file directly from an <img>
 705                  * This produces a compact URL with an opaque reference to the file,
 706                  * which we can reference immediately.
 707                  *
 708                  * - Firefox 3.6.6: no
 709                  * - Firefox 4.0b7: no
 710                  * - Safari 5.0.2: no
 711                  * - Chrome 8.0.552.210: works!
 712                  */
 713                 blobAsDataURL = function(blob, callback) {
 714                     callback(window.createObjectURL(blob));
 715                 }
 716             } else if (typeof window.FileReader != "undefined") {
 717                 /**
 718                  * FileAPI's FileReader can build a data URL from a blob's contents,
 719                  * but it must read the file and build it asynchronously. This means
 720                  * we'll be passing a giant data URL around, which may be inefficient.
 721                  *
 722                  * - Firefox 3.6.6: works!
 723                  * - Firefox 4.0b7: works!
 724                  * - Safari 5.0.2: no
 725                  * - Chrome 8.0.552.210: works!
 726                  */
 727                 blobAsDataURL = function(blob, callback) {
 728                     var reader = new FileReader();
 729                     reader.onload = function(event) {
 730                         callback(reader.result);
 731                     }
 732                     reader.readAsDataURL(blob);
 733                 }
 734             } else {
 735                 preview = false;
 736             }
 737
 738             var imageTypes = ['image/png', 'image/jpeg', 'image/gif', 'image/svg+xml'];
 739             if ($.inArray(file.type, imageTypes) == -1) {
 740                 // We probably don't know how to show the file.
 741                 preview = false;
 742             }
 743
 744             var maxSize = 8 * 1024 * 1024;
 745             if (file.size > maxSize) {
 746                 // Don't kill the browser trying to load some giant image.
 747                 preview = false;
 748             }
 749
 750             if (preview) {
 751                 blobAsDataURL(file, function(url) {
 752                     var img = $('<img>')
 753                         .attr('title', tooltip)
 754                         .attr('alt', tooltip)
 755                         .attr('src', url)
 756                         .attr('style', 'height: 120px');
 757                     $('#'+SN.C.S.NoticeDataAttachSelected).append(img);
 758                 });
 759             } else {
 760                 var img = $('<div></div>').text(tooltip);
 761                 $('#'+SN.C.S.NoticeDataAttachSelected).append(img);
 762             }
 763         },
 764
 765         NoticeLocationAttach: function() {
 766             var NLat = $('#'+SN.C.S.NoticeLat).val();
 767             var NLon = $('#'+SN.C.S.NoticeLon).val();
 768             var NLNS = $('#'+SN.C.S.NoticeLocationNs).val();
 769             var NLID = $('#'+SN.C.S.NoticeLocationId).val();
 770             var NLN = $('#'+SN.C.S.NoticeGeoName).text();
 771             var NDGe = $('#'+SN.C.S.NoticeDataGeo);
 772
 773             function removeNoticeDataGeo() {
 774                 $('label[for='+SN.C.S.NoticeDataGeo+']')
 775                     .attr('title', jQuery.trim($('label[for='+SN.C.S.NoticeDataGeo+']').text()))
 776                     .removeClass('checked');
 777
 778                 $('#'+SN.C.S.NoticeLat).val('');
 779                 $('#'+SN.C.S.NoticeLon).val('');
 780                 $('#'+SN.C.S.NoticeLocationNs).val('');
 781                 $('#'+SN.C.S.NoticeLocationId).val('');
 782                 $('#'+SN.C.S.NoticeDataGeo).attr('checked', false);
 783
 784                 $.cookie(SN.C.S.NoticeDataGeoCookie, 'disabled', { path: '/' });
 785             }
 786
 787             function getJSONgeocodeURL(geocodeURL, data) {
 788                 $.getJSON(geocodeURL, data, function(location) {
 789                     var lns, lid;
 790
 791                     if (typeof(location.location_ns) != 'undefined') {
 792                         $('#'+SN.C.S.NoticeLocationNs).val(location.location_ns);
 793                         lns = location.location_ns;
 794                     }
 795
 796                     if (typeof(location.location_id) != 'undefined') {
 797                         $('#'+SN.C.S.NoticeLocationId).val(location.location_id);
 798                         lid = location.location_id;
 799                     }
 800
 801                     if (typeof(location.name) == 'undefined') {
 802                         NLN_text = data.lat + ';' + data.lon;
 803                     }
 804                     else {
 805                         NLN_text = location.name;
 806                     }
 807
 808                     $('label[for='+SN.C.S.NoticeDataGeo+']')
 809                         .attr('title', NoticeDataGeo_text.ShareDisable + ' (' + NLN_text + ')');
 810
 811                     $('#'+SN.C.S.NoticeLat).val(data.lat);
 812                     $('#'+SN.C.S.NoticeLon).val(data.lon);
 813                     $('#'+SN.C.S.NoticeLocationNs).val(lns);
 814                     $('#'+SN.C.S.NoticeLocationId).val(lid);
 815                     $('#'+SN.C.S.NoticeDataGeo).attr('checked', true);
 816
 817                     var cookieValue = {
 818                         NLat: data.lat,
 819                         NLon: data.lon,
 820                         NLNS: lns,
 821                         NLID: lid,
 822                         NLN: NLN_text,
 823                         NLNU: location.url,
 824                         NDG: true
 825                     };
 826
 827                     $.cookie(SN.C.S.NoticeDataGeoCookie, JSON.stringify(cookieValue), { path: '/' });
 828                 });
 829             }
 830
 831             if (NDGe.length > 0) {
 832                 if ($.cookie(SN.C.S.NoticeDataGeoCookie) == 'disabled') {
 833                     NDGe.attr('checked', false);
 834                 }
 835                 else {
 836                     NDGe.attr('checked', true);
 837                 }
 838
 839                 var NGW = $('#notice_data-geo_wrap');
 840                 var geocodeURL = NGW.attr('title');
 841                 NGW.removeAttr('title');
 842
 843                 $('label[for='+SN.C.S.NoticeDataGeo+']')
 844                     .attr('title', jQuery.trim($('label[for='+SN.C.S.NoticeDataGeo+']').text()));
 845
 846                 NDGe.change(function() {
 847                     if ($('#'+SN.C.S.NoticeDataGeo).attr('checked') === true || $.cookie(SN.C.S.NoticeDataGeoCookie) === null) {
 848                         $('label[for='+SN.C.S.NoticeDataGeo+']')
 849                             .attr('title', NoticeDataGeo_text.ShareDisable)
 850                             .addClass('checked');
 851
 852                         if ($.cookie(SN.C.S.NoticeDataGeoCookie) === null || $.cookie(SN.C.S.NoticeDataGeoCookie) == 'disabled') {
 853                             if (navigator.geolocation) {
 854                                 navigator.geolocation.getCurrentPosition(
 855                                     function(position) {
 856                                         $('#'+SN.C.S.NoticeLat).val(position.coords.latitude);
 857                                         $('#'+SN.C.S.NoticeLon).val(position.coords.longitude);
 858
 859                                         var data = {
 860                                             lat: position.coords.latitude,
 861                                             lon: position.coords.longitude,
 862                                             token: $('#token').val()
 863                                         };
 864
 865                                         getJSONgeocodeURL(geocodeURL, data);
 866                                     },
 867
 868                                     function(error) {
 869                                         switch(error.code) {
 870                                             case error.PERMISSION_DENIED:
 871                                                 removeNoticeDataGeo();
 872                                                 break;
 873                                             case error.TIMEOUT:
 874                                                 $('#'+SN.C.S.NoticeDataGeo).attr('checked', false);
 875                                                 break;
 876                                         }
 877                                     },
 878
 879                                     {
 880                                         timeout: 10000
 881                                     }
 882                                 );
 883                             }
 884                             else {
 885                                 if (NLat.length > 0 && NLon.length > 0) {
 886                                     var data = {
 887                                         lat: NLat,
 888                                         lon: NLon,
 889                                         token: $('#token').val()
 890                                     };
 891
 892                                     getJSONgeocodeURL(geocodeURL, data);
 893                                 }
 894                                 else {
 895                                     removeNoticeDataGeo();
 896                                     $('#'+SN.C.S.NoticeDataGeo).remove();
 897                                     $('label[for='+SN.C.S.NoticeDataGeo+']').remove();
 898                                 }
 899                             }
 900                         }
 901                         else {
 902                             var cookieValue = JSON.parse($.cookie(SN.C.S.NoticeDataGeoCookie));
 903
 904                             $('#'+SN.C.S.NoticeLat).val(cookieValue.NLat);
 905                             $('#'+SN.C.S.NoticeLon).val(cookieValue.NLon);
 906                             $('#'+SN.C.S.NoticeLocationNs).val(cookieValue.NLNS);
 907                             $('#'+SN.C.S.NoticeLocationId).val(cookieValue.NLID);
 908                             $('#'+SN.C.S.NoticeDataGeo).attr('checked', cookieValue.NDG);
 909
 910                             $('label[for='+SN.C.S.NoticeDataGeo+']')
 911                                 .attr('title', NoticeDataGeo_text.ShareDisable + ' (' + cookieValue.NLN + ')')
 912                                 .addClass('checked');
 913                         }
 914                     }
 915                     else {
 916                         removeNoticeDataGeo();
 917                     }
 918                 }).change();
 919             }
 920         },
 921
 922         NewDirectMessage: function() {
 923             NDM = $('.entity_send-a-message a');
 924             NDM.attr({'href':NDM.attr('href')+'&ajax=1'});
 925             NDM.bind('click', function() {
 926                 var NDMF = $('.entity_send-a-message form');
 927                 if (NDMF.length === 0) {
 928                     $(this).addClass(SN.C.S.Processing);
 929                     $.get(NDM.attr('href'), null, function(data) {
 930                         $('.entity_send-a-message').append(document._importNode($('form', data)[0], true));
 931                         NDMF = $('.entity_send-a-message .form_notice');
 932                         SN.U.FormNoticeXHR(NDMF);
 933                         SN.U.FormNoticeEnhancements(NDMF);
 934                         NDMF.append('<button class="close">&#215;</button>');
 935                         $('.entity_send-a-message button').click(function(){
 936                             NDMF.hide();
 937                             return false;
 938                         });
 939                         NDM.removeClass(SN.C.S.Processing);
 940                     });
 941                 }
 942                 else {
 943                     NDMF.show();
 944                     $('.entity_send-a-message textarea').focus();
 945                 }
 946                 return false;
 947             });
 948         },
 949
 950         GetFullYear: function(year, month, day) {
 951             var date = new Date();
 952             date.setFullYear(year, month, day);
 953
 954             return date;
 955         },
 956
 957         StatusNetInstance: {
 958             Set: function(value) {
 959                 var SNI = SN.U.StatusNetInstance.Get();
 960                 if (SNI !== null) {
 961                     value = $.extend(SNI, value);
 962                 }
 963
 964                 $.cookie(
 965                     SN.C.S.StatusNetInstance,
 966                     JSON.stringify(value),
 967                     {
 968                         path: '/',
 969                         expires: SN.U.GetFullYear(2029, 0, 1)
 970                     });
 971             },
 972
 973             Get: function() {
 974                 var cookieValue = $.cookie(SN.C.S.StatusNetInstance);
 975                 if (cookieValue !== null) {
 976                     return JSON.parse(cookieValue);
 977                 }
 978                 return null;
 979             },
 980
 981             Delete: function() {
 982                 $.cookie(SN.C.S.StatusNetInstance, null);
 983             }
 984         },
 985
 986         /**
 987          * Check if the current page is a timeline where the current user's
 988          * posts should be displayed immediately on success.
 989          *
 990          * @fixme this should be done in a saner way, with machine-readable
 991          * info about what page we're looking at.
 992          */
 993         belongsOnTimeline: function(notice) {
 994             var action = $("body").attr('id');
 995             if (action == 'public') {
 996                 return true;
 997             }
 998
 999             var profileLink = $('#nav_profile a').attr('href');
1000             if (profileLink) {
1001                 var authorUrl = $(notice).find('.entry-title .author a.url').attr('href');
1002                 if (authorUrl == profileLink) {
1003                     if (action == 'all' || action == 'showstream') {
1004                         // Posts always show on your own friends and profile streams.
1005                         return true;
1006                     }
1007                 }
1008             }
1009
1010             // @fixme tag, group, reply timelines should be feasible as well.
1011             // Mismatch between id-based and name-based user/group links currently complicates
1012             // the lookup, since all our inline mentions contain the absolute links but the
1013             // UI links currently on the page use malleable names.
1014
1015             return false;
1016         }
1017     },
1018
1019     Init: {
1020         NoticeForm: function() {
1021             if ($('body.user_in').length > 0) {
1022                 SN.U.NoticeLocationAttach();
1023
1024                 $('.'+SN.C.S.FormNotice).each(function() {
1025                     SN.U.FormNoticeXHR($(this));
1026                     SN.U.FormNoticeEnhancements($(this));
1027                 });
1028
1029                 SN.U.NoticeDataAttach();
1030             }
1031         },
1032
1033         Notices: function() {
1034             if ($('body.user_in').length > 0) {
1035                 SN.U.NoticeFavor();
1036                 SN.U.NoticeRepeat();
1037                 SN.U.NoticeReply();
1038             }
1039
1040             SN.U.NoticeAttachments();
1041         },
1042
1043         EntityActions: function() {
1044             if ($('body.user_in').length > 0) {
1045                 $('.form_user_subscribe').live('click', function() { SN.U.FormXHR($(this)); return false; });
1046                 $('.form_user_unsubscribe').live('click', function() { SN.U.FormXHR($(this)); return false; });
1047                 $('.form_group_join').live('click', function() { SN.U.FormXHR($(this)); return false; });
1048                 $('.form_group_leave').live('click', function() { SN.U.FormXHR($(this)); return false; });
1049                 $('.form_user_nudge').live('click', function() { SN.U.FormXHR($(this)); return false; });
1050
1051                 SN.U.NewDirectMessage();
1052             }
1053         },
1054
1055         Login: function() {
1056             if (SN.U.StatusNetInstance.Get() !== null) {
1057                 var nickname = SN.U.StatusNetInstance.Get().Nickname;
1058                 if (nickname !== null) {
1059                     $('#form_login #nickname').val(nickname);
1060                 }
1061             }
1062
1063             $('#form_login').bind('submit', function() {
1064                 SN.U.StatusNetInstance.Set({Nickname: $('#form_login #nickname').val()});
1065                 return true;
1066             });
1067         }
1068     }
1069 };
1070
1071 $(document).ready(function(){
1072     if ($('.'+SN.C.S.FormNotice).length > 0) {
1073         SN.Init.NoticeForm();
1074     }
1075     if ($('#content .notices').length > 0) {
1076         SN.Init.Notices();
1077     }
1078     if ($('#content .entity_actions').length > 0) {
1079         SN.Init.EntityActions();
1080     }
1081     if ($('#form_login').length > 0) {
1082         SN.Init.Login();
1083     }
1084 });
1085
1086 // Formerly in xbImportNode.js
1087
1088 /* is this stuff defined? */
1089 if (!document.ELEMENT_NODE) {
1090         document.ELEMENT_NODE = 1;
1091         document.ATTRIBUTE_NODE = 2;
1092         document.TEXT_NODE = 3;
1093         document.CDATA_SECTION_NODE = 4;
1094         document.ENTITY_REFERENCE_NODE = 5;
1095         document.ENTITY_NODE = 6;
1096         document.PROCESSING_INSTRUCTION_NODE = 7;
1097         document.COMMENT_NODE = 8;
1098         document.DOCUMENT_NODE = 9;
1099         document.DOCUMENT_TYPE_NODE = 10;
1100         document.DOCUMENT_FRAGMENT_NODE = 11;
1101         document.NOTATION_NODE = 12;
1102 }
1103
1104 document._importNode = function(node, allChildren) {
1105         /* find the node type to import */
1106         switch (node.nodeType) {
1107                 case document.ELEMENT_NODE:
1108                         /* create a new element */
1109                         var newNode = document.createElement(node.nodeName);
1110                         /* does the node have any attributes to add? */
1111                         if (node.attributes && node.attributes.length > 0)
1112                                 /* add all of the attributes */
1113                                 for (var i = 0, il = node.attributes.length; i < il;) {
1114                                         if (node.attributes[i].nodeName == 'class') {
1115                                                 newNode.className = node.getAttribute(node.attributes[i++].nodeName);
1116                                         } else {
1117                                                 newNode.setAttribute(node.attributes[i].nodeName, node.getAttribute(node.attributes[i++].nodeName));
1118                                         }
1119                                 }
1120                         /* are we going after children too, and does the node have any? */
1121                         if (allChildren && node.childNodes && node.childNodes.length > 0)
1122                                 /* recursively get all of the child nodes */
1123                                 for (var i = 0, il = node.childNodes.length; i < il;)
1124                                         newNode.appendChild(document._importNode(node.childNodes[i++], allChildren));
1125                         return newNode;
1126                         break;
1127                 case document.TEXT_NODE:
1128                 case document.CDATA_SECTION_NODE:
1129                 case document.COMMENT_NODE:
1130                         return document.createTextNode(node.nodeValue);
1131                         break;
1132         }
1133 };
1134
1135 // A shim to implement the W3C Geolocation API Specification using Gears or the Ajax API
1136 if (typeof navigator.geolocation == "undefined" || navigator.geolocation.shim ) { (function(){
1137
1138 // -- BEGIN GEARS_INIT
1139 (function() {
1140   // We are already defined. Hooray!
1141   if (window.google && google.gears) {
1142     return;
1143   }
1144
1145   var factory = null;
1146
1147   // Firefox
1148   if (typeof GearsFactory != 'undefined') {
1149     factory = new GearsFactory();
1150   } else {
1151     // IE
1152     try {
1153       factory = new ActiveXObject('Gears.Factory');
1154       // privateSetGlobalObject is only required and supported on WinCE.
1155       if (factory.getBuildInfo().indexOf('ie_mobile') != -1) {
1156         factory.privateSetGlobalObject(this);
1157       }
1158     } catch (e) {
1159       // Safari
1160       if ((typeof navigator.mimeTypes != 'undefined') && navigator.mimeTypes["application/x-googlegears"]) {
1161         factory = document.createElement("object");
1162         factory.style.display = "none";
1163         factory.width = 0;
1164         factory.height = 0;
1165         factory.type = "application/x-googlegears";
1166         document.documentElement.appendChild(factory);
1167       }
1168     }
1169   }
1170
1171   // *Do not* define any objects if Gears is not installed. This mimics the
1172   // behavior of Gears defining the objects in the future.
1173   if (!factory) {
1174     return;
1175   }
1176
1177   // Now set up the objects, being careful not to overwrite anything.
1178   //
1179   // Note: In Internet Explorer for Windows Mobile, you can't add properties to
1180   // the window object. However, global objects are automatically added as
1181   // properties of the window object in all browsers.
1182   if (!window.google) {
1183     google = {};
1184   }
1185
1186   if (!google.gears) {
1187     google.gears = {factory: factory};
1188   }
1189 })();
1190 // -- END GEARS_INIT
1191
1192 var GearsGeoLocation = (function() {
1193     // -- PRIVATE
1194     var geo = google.gears.factory.create('beta.geolocation');
1195
1196     var wrapSuccess = function(callback, self) { // wrap it for lastPosition love
1197         return function(position) {
1198             callback(position);
1199             self.lastPosition = position;
1200         };
1201     };
1202
1203     // -- PUBLIC
1204     return {
1205         shim: true,
1206
1207         type: "Gears",
1208
1209         lastPosition: null,
1210
1211         getCurrentPosition: function(successCallback, errorCallback, options) {
1212             var self = this;
1213             var sc = wrapSuccess(successCallback, self);
1214             geo.getCurrentPosition(sc, errorCallback, options);
1215         },
1216
1217         watchPosition: function(successCallback, errorCallback, options) {
1218             geo.watchPosition(successCallback, errorCallback, options);
1219         },
1220
1221         clearWatch: function(watchId) {
1222             geo.clearWatch(watchId);
1223         },
1224
1225         getPermission: function(siteName, imageUrl, extraMessage) {
1226             geo.getPermission(siteName, imageUrl, extraMessage);
1227         }
1228
1229     };
1230 });
1231
1232 var AjaxGeoLocation = (function() {
1233     // -- PRIVATE
1234     var loading = false;
1235     var loadGoogleLoader = function() {
1236         if (!hasGoogleLoader() && !loading) {
1237             loading = true;
1238             var s = document.createElement('script');
1239             s.src = (document.location.protocol == "https:"?"https://":"http://") + 'www.google.com/jsapi?callback=_google_loader_apiLoaded';
1240             s.type = "text/javascript";
1241             document.getElementsByTagName('body')[0].appendChild(s);
1242         }
1243     };
1244
1245     var queue = [];
1246     var addLocationQueue = function(callback) {
1247         queue.push(callback);
1248     };
1249
1250     var runLocationQueue = function() {
1251         if (hasGoogleLoader()) {
1252             while (queue.length > 0) {
1253                 var call = queue.pop();
1254                 call();
1255             }
1256         }
1257     };
1258
1259     window['_google_loader_apiLoaded'] = function() {
1260         runLocationQueue();
1261     };
1262
1263     var hasGoogleLoader = function() {
1264         return (window['google'] && google['loader']);
1265     };
1266
1267     var checkGoogleLoader = function(callback) {
1268         if (hasGoogleLoader()) { return true; }
1269
1270         addLocationQueue(callback);
1271
1272         loadGoogleLoader();
1273
1274         return false;
1275     };
1276
1277     loadGoogleLoader(); // start to load as soon as possible just in case
1278
1279     // -- PUBLIC
1280     return {
1281         shim: true,
1282
1283         type: "ClientLocation",
1284
1285         lastPosition: null,
1286
1287         getCurrentPosition: function(successCallback, errorCallback, options) {
1288             var self = this;
1289             if (!checkGoogleLoader(function() {
1290                 self.getCurrentPosition(successCallback, errorCallback, options);
1291             })) { return; }
1292
1293             if (google.loader.ClientLocation) {
1294                 var cl = google.loader.ClientLocation;
1295
1296                 var position = {
1297                     coords: {
1298                         latitude: cl.latitude,
1299                         longitude: cl.longitude,
1300                         altitude: null,
1301                         accuracy: 43000, // same as Gears accuracy over wifi?
1302                         altitudeAccuracy: null,
1303                         heading: null,
1304                         speed: null
1305                     },
1306                     // extra info that is outside of the bounds of the core API
1307                     address: {
1308                         city: cl.address.city,
1309                         country: cl.address.country,
1310                         country_code: cl.address.country_code,
1311                         region: cl.address.region
1312                     },
1313                     timestamp: new Date()
1314                 };
1315
1316                 successCallback(position);
1317
1318                 this.lastPosition = position;
1319             } else if (errorCallback === "function")  {
1320                 errorCallback({ code: 3, message: "Using the Google ClientLocation API and it is not able to calculate a location."});
1321             }
1322         },
1323
1324         watchPosition: function(successCallback, errorCallback, options) {
1325             this.getCurrentPosition(successCallback, errorCallback, options);
1326
1327             var self = this;
1328             var watchId = setInterval(function() {
1329                 self.getCurrentPosition(successCallback, errorCallback, options);
1330             }, 10000);
1331
1332             return watchId;
1333         },
1334
1335         clearWatch: function(watchId) {
1336             clearInterval(watchId);
1337         },
1338
1339         getPermission: function(siteName, imageUrl, extraMessage) {
1340             // for now just say yes :)
1341             return true;
1342         }
1343
1344     };
1345 });
1346
1347 // If you have Gears installed use that, else use Ajax ClientLocation
1348 navigator.geolocation = (window.google && google.gears) ? GearsGeoLocation() : AjaxGeoLocation();
1349
1350 })();
1351 }