2 * StatusNet - a distributed open-source microblogging tool
3 * Copyright (C) 2008, StatusNet, Inc.
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.
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.
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/>.
18 * @category UI interaction
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/
28 var SN = { // StatusNet
31 CounterBlackout: false,
33 PatternUsername: /^[0-9a-zA-Z\-_.]*$/,
34 HTTP20x30x: [200, 201, 202, 203, 204, 205, 206, 300, 301, 302, 303, 304, 305, 306, 307]
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.
42 * In theory, minification could reduce them to shorter variable names,
43 * but at present that doesn't happen with yui-compressor.
50 Processing: 'processing',
51 CommandResult: 'command_result',
52 FormNotice: 'form_notice',
53 NoticeDataGeo: 'notice_data-geo',
54 NoticeDataGeoCookie: 'NoticeDataGeo',
55 NoticeDataGeoSelected: 'notice_data-geo_selected',
56 StatusNetInstance:'StatusNetInstance'
61 * Map of localized message strings exported to script from the PHP
62 * side via Action::getScriptMessages().
64 * Retrieve them via SN.msg(); this array is an implementation detail.
71 * Grabs a localized string that's been previously exported to us
72 * from server-side code via Action::getScriptMessages().
74 * @example alert(SN.msg('coolplugin-failed'));
76 * @param {String} key: string key name to pull from message index
77 * @return matching localized message string
80 if (typeof SN.messages[key] == "undefined") {
81 return '[' + key + ']';
83 return SN.messages[key];
89 * Setup function -- DOES NOT trigger actions immediately.
91 * Sets up event handlers on the new notice form.
93 * @param {jQuery} form: jQuery object whose first matching element is the form
96 FormNoticeEnhancements: function(form) {
97 if (jQuery.data(form[0], 'ElementData') === undefined) {
98 MaxLength = form.find('.count').text();
99 if (typeof(MaxLength) == 'undefined') {
100 MaxLength = SN.C.I.MaxLength;
102 jQuery.data(form[0], 'ElementData', {MaxLength:MaxLength});
106 NDT = form.find('[name=status_textarea]');
108 NDT.bind('keyup', function(e) {
112 var delayedUpdate= function(e) {
113 // Cut and paste events fire *before* the operation,
114 // so we need to trigger an update in a little bit.
115 // This would be so much easier if the 'change' event
116 // actually fired every time the value changed. :P
117 window.setTimeout(function() {
121 // Note there's still no event for mouse-triggered 'delete'.
122 NDT.bind('cut', delayedUpdate)
123 .bind('paste', delayedUpdate);
126 form.find('.count').text(jQuery.data(form[0], 'ElementData').MaxLength);
131 * To be called from event handlers on the notice import form.
132 * Triggers an update of the remaining-characters counter.
134 * Additional counter updates will be suppressed during the
135 * next half-second to avoid flooding the layout engine with
136 * updates, followed by another automatic check.
138 * The maximum length is pulled from data established by
139 * FormNoticeEnhancements.
141 * @param {jQuery} form: jQuery object whose first element is the notice posting form
144 Counter: function(form) {
145 SN.C.I.FormNoticeCurrent = form;
147 var MaxLength = jQuery.data(form[0], 'ElementData').MaxLength;
149 if (MaxLength <= 0) {
153 var remaining = MaxLength - SN.U.CharacterCount(form);
154 var counter = form.find('.count');
156 if (remaining.toString() != counter.text()) {
157 if (!SN.C.I.CounterBlackout || remaining === 0) {
158 if (counter.text() != String(remaining)) {
159 counter.text(remaining);
162 form.addClass(SN.C.S.Warning);
164 form.removeClass(SN.C.S.Warning);
166 // Skip updates for the next 500ms.
167 // On slower hardware, updating on every keypress is unpleasant.
168 if (!SN.C.I.CounterBlackout) {
169 SN.C.I.CounterBlackout = true;
170 SN.C.I.FormNoticeCurrent = form;
171 window.setTimeout("SN.U.ClearCounterBlackout(SN.C.I.FormNoticeCurrent);", 500);
178 * Pull the count of characters in the current edit field.
179 * Plugins replacing the edit control may need to override this.
181 * @param {jQuery} form: jQuery object whose first element is the notice posting form
182 * @return number of chars
184 CharacterCount: function(form) {
185 return form.find('[name=status_textarea]').val().length;
189 * Called internally after the counter update blackout period expires;
190 * runs another update to make sure we didn't miss anything.
192 * @param {jQuery} form: jQuery object whose first element is the notice posting form
195 ClearCounterBlackout: function(form) {
196 // Allow keyup events to poke the counter again
197 SN.C.I.CounterBlackout = false;
198 // Check if the string changed since we last looked
203 * Helper function to rewrite default HTTP form action URLs to HTTPS
204 * so we can actually fetch them when on an SSL page in ssl=sometimes
207 * It would be better to output URLs that didn't hardcode protocol
208 * and hostname in the first place...
210 * @param {String} url
213 RewriteAjaxAction: function(url) {
214 // Quick hack: rewrite AJAX submits to HTTPS if they'd fail otherwise.
215 if (document.location.protocol == 'https:' && url.substr(0, 5) == 'http:') {
216 return url.replace(/^http:\/\/[^:\/]+/, 'https://' + document.location.host);
223 * Grabs form data and submits it asynchronously, with 'ajax=1'
224 * parameter added to the rest.
226 * If a successful response includes another form, that form
227 * will be extracted and copied in, replacing the original form.
228 * If there's no form, the first paragraph will be used.
230 * @fixme can sometimes explode confusingly if returnd data is bogus
231 * @fixme error handling is pretty vague
232 * @fixme can't submit file uploads
234 * @param {jQuery} form: jQuery object whose first element is a form
238 FormXHR: function(form) {
242 url: SN.U.RewriteAjaxAction(form.attr('action')),
243 data: form.serialize() + '&ajax=1',
244 beforeSend: function(xhr) {
246 .addClass(SN.C.S.Processing)
248 .addClass(SN.C.S.Disabled)
249 .attr(SN.C.S.Disabled, SN.C.S.Disabled);
251 error: function (xhr, textStatus, errorThrown) {
252 alert(errorThrown || textStatus);
254 success: function(data, textStatus) {
255 if (typeof($('form', data)[0]) != 'undefined') {
256 form_new = document._importNode($('form', data)[0], true);
257 form.replaceWith(form_new);
260 form.replaceWith(document._importNode($('p', data)[0], true));
267 * Setup function -- DOES NOT trigger actions immediately.
269 * Sets up event handlers for special-cased async submission of the
270 * notice-posting form, including some pre-post validation.
272 * Unlike FormXHR() this does NOT submit the form immediately!
273 * It sets up event handlers so that any method of submitting the
274 * form (click on submit button, enter, submit() etc) will trigger
277 * Also unlike FormXHR(), this system will use a hidden iframe
278 * automatically to handle file uploads via <input type="file">
282 * @fixme vast swaths of duplicate code and really long variable names clutter this function up real bad
283 * @fixme error handling is unreliable
284 * @fixme cookieValue is a global variable, but probably shouldn't be
285 * @fixme saving the location cache cookies should be split out
286 * @fixme some error messages are hardcoded english: needs i18n
287 * @fixme special-case for bookmarklet is confusing and uses a global var "self". Is this ok?
289 * @param {jQuery} form: jQuery object whose first element is a form
293 FormNoticeXHR: function(form) {
294 SN.C.I.NoticeDataGeo = {};
295 form.append('<input type="hidden" name="ajax" value="1"/>');
297 // Make sure we don't have a mixed HTTP/HTTPS submission...
298 form.attr('action', SN.U.RewriteAjaxAction(form.attr('action')));
301 * Show a response feedback bit under the new-notice dialog.
303 * @param {String} cls: CSS class name to use ('error' or 'success')
304 * @param {String} text
307 var showFeedback = function(cls, text) {
309 $('<p class="form_response"></p>')
316 * Hide the previous response feedback, if any.
318 var removeFeedback = function() {
319 form.find('.form_response').remove();
325 beforeSend: function(formData) {
326 if (form.find('[name=status_textarea]').val() == '') {
327 form.addClass(SN.C.S.Warning);
331 .addClass(SN.C.S.Processing)
333 .addClass(SN.C.S.Disabled)
334 .attr(SN.C.S.Disabled, SN.C.S.Disabled);
336 SN.U.normalizeGeoData(form);
340 error: function (xhr, textStatus, errorThrown) {
342 .removeClass(SN.C.S.Processing)
344 .removeClass(SN.C.S.Disabled)
345 .removeAttr(SN.C.S.Disabled, SN.C.S.Disabled);
347 if (textStatus == 'timeout') {
349 showFeedback('error', 'Sorry! We had trouble sending your notice. The servers are overloaded. Please try again, and contact the site administrator if this problem persists.');
352 var response = SN.U.GetResponseXML(xhr);
353 if ($('.'+SN.C.S.Error, response).length > 0) {
354 form.append(document._importNode($('.'+SN.C.S.Error, response)[0], true));
357 if (parseInt(xhr.status) === 0 || jQuery.inArray(parseInt(xhr.status), SN.C.I.HTTP20x30x) >= 0) {
360 .find('.attach-status').remove();
361 SN.U.FormNoticeEnhancements(form);
365 showFeedback('error', '(Sorry! We had trouble sending your notice ('+xhr.status+' '+xhr.statusText+'). Please report the problem to the site administrator if this happens again.');
370 success: function(data, textStatus) {
372 var errorResult = $('#'+SN.C.S.Error, data);
373 if (errorResult.length > 0) {
374 showFeedback('error', errorResult.text());
377 if($('body')[0].id == 'bookmarklet') {
378 // @fixme self is not referenced anywhere?
382 var commandResult = $('#'+SN.C.S.CommandResult, data);
383 if (commandResult.length > 0) {
384 showFeedback('success', commandResult.text());
387 // New notice post was successful. If on our timeline, show it!
388 var notice = document._importNode($('li', data)[0], true);
389 var notices = $('#notices_primary .notices:first');
390 var replyItem = form.closest('li.notice-reply');
392 if (replyItem.length > 0) {
393 // If this is an inline reply, insert it in place.
394 var id = $(notice).attr('id');
395 if ($("#"+id).length == 0) {
396 var parentNotice = replyItem.closest('li.notice');
397 replyItem.replaceWith(notice);
398 SN.U.NoticeInlineReplyPlaceholder(parentNotice);
400 // Realtime came through before us...
403 } else if (notices.length > 0 && SN.U.belongsOnTimeline(notice)) {
404 // Not a reply. If on our timeline, show it at the top!
406 if ($('#'+notice.id).length === 0) {
407 var notice_irt_value = form.find('[name=inreplyto]').val();
408 var notice_irt = '#notices_primary #notice-'+notice_irt_value;
409 if($('body')[0].id == 'conversation') {
410 if(notice_irt_value.length > 0 && $(notice_irt+' .notices').length < 1) {
411 $(notice_irt).append('<ul class="notices"></ul>');
413 $($(notice_irt+' .notices')[0]).append(notice);
416 notices.prepend(notice);
419 .css({display:'none'})
421 SN.U.NoticeWithAttachment($('#'+notice.id));
422 SN.U.NoticeReplyTo($('#'+notice.id));
425 // Not on a timeline that this belongs on?
426 // Just show a success message.
428 showFeedback('success', $('title', data).text());
432 form.find('[name=inreplyto]').val('');
433 form.find('.attach-status').remove();
434 SN.U.FormNoticeEnhancements(form);
437 complete: function(xhr, textStatus) {
439 .removeClass(SN.C.S.Processing)
441 .removeAttr(SN.C.S.Disabled)
442 .removeClass(SN.C.S.Disabled);
444 form.find('[name=lat]').val(SN.C.I.NoticeDataGeo.NLat);
445 form.find('[name=lon]').val(SN.C.I.NoticeDataGeo.NLon);
446 form.find('[name=location_ns]').val(SN.C.I.NoticeDataGeo.NLNS);
447 form.find('[name=location_id]').val(SN.C.I.NoticeDataGeo.NLID);
448 form.find('[name=notice_data-geo]').attr('checked', SN.C.I.NoticeDataGeo.NDG);
453 normalizeGeoData: function(form) {
454 SN.C.I.NoticeDataGeo.NLat = form.find('[name=lat]').val();
455 SN.C.I.NoticeDataGeo.NLon = form.find('[name=lon]').val();
456 SN.C.I.NoticeDataGeo.NLNS = form.find('[name=location_ns]').val();
457 SN.C.I.NoticeDataGeo.NLID = form.find('[name=location_id]').val();
458 SN.C.I.NoticeDataGeo.NDG = form.find('[name=notice_data-geo]').attr('checked'); // @fixme
460 var cookieValue = $.cookie(SN.C.S.NoticeDataGeoCookie);
462 if (cookieValue !== null && cookieValue != 'disabled') {
463 cookieValue = JSON.parse(cookieValue);
464 SN.C.I.NoticeDataGeo.NLat = form.find('[name=lat]').val(cookieValue.NLat).val();
465 SN.C.I.NoticeDataGeo.NLon = form.find('[name=lon]').val(cookieValue.NLon).val();
466 if (cookieValue.NLNS) {
467 SN.C.I.NoticeDataGeo.NLNS = form.find('[name=location_ns]').val(cookieValue.NLNS).val();
468 SN.C.I.NoticeDataGeo.NLID = form.find('[name=location_id]').val(cookieValue.NLID).val();
470 form.find('[name=location_ns]').val('');
471 form.find('[name=location_id]').val('');
474 if (cookieValue == 'disabled') {
475 SN.C.I.NoticeDataGeo.NDG = form.find('[name=notice_data-geo]').attr('checked', false).attr('checked');
478 SN.C.I.NoticeDataGeo.NDG = form.find('[name=notice_data-geo]').attr('checked', true).attr('checked');
483 * Fetch an XML DOM from an XHR's response data.
485 * Works around unavailable responseXML when document.domain
486 * has been modified by Meteor or other tools, in some but not
489 * @param {XMLHTTPRequest} xhr
490 * @return DOMDocument
492 GetResponseXML: function(xhr) {
494 return xhr.responseXML;
496 return (new DOMParser()).parseFromString(xhr.responseText, "text/xml");
501 * Setup function -- DOES NOT trigger actions immediately.
503 * Sets up event handlers on all visible notice's reply buttons to
504 * tweak the new-notice form with needed variables and focus it
507 * (This replaces the default reply button behavior to submit
508 * directly to a form which comes back with a specialized page
509 * with the form data prefilled.)
513 NoticeReply: function() {
514 if ($('#content .notice_reply').length > 0) {
515 $('#content .notice').each(function() { SN.U.NoticeReplyTo($(this)); });
520 * Setup function -- DOES NOT trigger actions immediately.
522 * Sets up event handlers on the given notice's reply button to
523 * tweak the new-notice form with needed variables and focus it
526 * (This replaces the default reply button behavior to submit
527 * directly to a form which comes back with a specialized page
528 * with the form data prefilled.)
530 * @param {jQuery} notice: jQuery object containing one or more notices
533 NoticeReplyTo: function(notice) {
534 notice.find('.notice_reply').live('click', function(e) {
536 var nickname = ($('.author .nickname', notice).length > 0) ? $($('.author .nickname', notice)[0]) : $('.author .nickname.uid');
537 SN.U.NoticeInlineReplyTrigger(notice, '@' + nickname.text());
543 * Open up a notice's inline reply box.
545 * @param {jQuery} notice: jQuery object containing one notice
546 * @param {String} initialText
548 NoticeInlineReplyTrigger: function(notice, initialText) {
549 // Find the notice we're replying to...
550 var id = $($('.notice_id', notice)[0]).text();
551 var parentNotice = notice;
553 // Find the threaded replies view we'll be adding to...
554 var list = notice.closest('.notices');
555 if (list.hasClass('threaded-replies')) {
556 // We're replying to a reply; use reply form on the end of this list.
557 // We'll add our form at the end of this; grab the root notice.
558 parentNotice = list.closest('.notice');
560 // We're replying to a parent notice; pull its threaded list
561 // and we'll add on the end of it. Will add if needed.
562 list = $('ul.threaded-replies', notice);
563 if (list.length == 0) {
564 list = $('<ul class="notices threaded-replies xoxo"></ul>');
569 // See if the form's already open...
570 var replyForm = $('.notice-reply-form', list);
572 var nextStep = function() {
574 replyForm.find('input[name=inreplyto]').val(id);
577 var text = replyForm.find('textarea');
578 if (text.length == 0) {
583 replyto = initialText + ' ';
585 text.val(replyto + text.val().replace(RegExp(replyto, 'i'), ''));
586 text.data('initialText', $.trim(initialText + ''));
588 if (text[0].setSelectionRange) {
589 var len = text.val().length;
590 text[0].setSelectionRange(len,len);
593 if (replyForm.length > 0) {
594 // Update the existing form...
597 // Remove placeholder if any
598 $('li.notice-reply-placeholder').remove();
600 // Create the reply form entry at the end
601 var replyItem = $('li.notice-reply', list);
602 if (replyItem.length == 0) {
603 var url = $('#form_notice').attr('action');
604 replyItem = $('<li class="notice-reply"></li>');
605 $.get(url, {ajax: 1}, function(data, textStatus, xhr) {
606 var formEl = document._importNode($('form', data)[0], true);
607 replyItem.append(formEl);
608 list.append(replyItem);
610 var form = replyForm = $(formEl);
611 SN.U.NoticeLocationAttach(form);
612 SN.U.FormNoticeXHR(form);
613 SN.U.FormNoticeEnhancements(form);
614 SN.U.NoticeDataAttach(form);
623 * Setup function -- DOES NOT apply immediately.
625 * Sets up event handlers for favor/disfavor forms to submit via XHR.
626 * Uses 'live' rather than 'bind', so applies to future as well as present items.
628 NoticeFavor: function() {
629 $('.form_favor').live('click', function() { SN.U.FormXHR($(this)); return false; });
630 $('.form_disfavor').live('click', function() { SN.U.FormXHR($(this)); return false; });
633 NoticeInlineReplyPlaceholder: function(notice) {
634 var list = notice.find('ul.threaded-replies');
635 var placeholder = $('<li class="notice-reply-placeholder">' +
636 '<input class="placeholder">' +
638 placeholder.click(function() {
639 SN.U.NoticeInlineReplyTrigger(notice);
641 placeholder.find('input').val(SN.msg('reply_placeholder'));
642 list.append(placeholder);
646 * Setup function -- DOES NOT apply immediately.
648 * Sets up event handlers for favor/disfavor forms to submit via XHR.
649 * Uses 'live' rather than 'bind', so applies to future as well as present items.
651 NoticeInlineReplySetup: function() {
652 $('.threaded-replies').each(function() {
654 var notice = list.closest('.notice');
655 SN.U.NoticeInlineReplyPlaceholder(notice);
660 * Setup function -- DOES NOT trigger actions immediately.
662 * Sets up event handlers for repeat forms to toss up a confirmation
663 * popout before submitting.
665 * Uses 'live' rather than 'bind', so applies to future as well as present items.
667 NoticeRepeat: function() {
668 $('.form_repeat').live('click', function(e) {
671 SN.U.NoticeRepeatConfirmation($(this));
677 * Shows a confirmation dialog box variant of the repeat button form.
678 * This seems to use a technique where the repeat form contains
679 * _both_ a standalone button _and_ text and buttons for a dialog.
680 * The dialog will close after its copy of the form is submitted,
681 * or if you click its 'close' button.
683 * The dialog is created by duplicating the original form and changing
684 * its style; while clever, this is hard to generalize and probably
685 * duplicates a lot of unnecessary HTML output.
687 * @fixme create confirmation dialogs through a generalized interface
688 * that can be reused instead of hardcoded text and styles.
690 * @param {jQuery} form
692 NoticeRepeatConfirmation: function(form) {
693 var submit_i = form.find('.submit');
695 var submit = submit_i.clone();
697 .addClass('submit_dialogbox')
698 .removeClass('submit');
700 submit.bind('click', function() { SN.U.FormXHR(form); return false; });
705 .addClass('dialogbox')
706 .append('<button class="close">×</button>')
707 .closest('.notice-options')
710 form.find('button.close').click(function(){
714 .removeClass('dialogbox')
715 .closest('.notice-options')
716 .removeClass('opaque');
718 form.find('.submit_dialogbox').remove();
719 form.find('.submit').show();
726 * Setup function -- DOES NOT trigger actions immediately.
728 * Goes through all notices currently displayed and sets up attachment
729 * handling if needed.
731 NoticeAttachments: function() {
732 $('.notice a.attachment').each(function() {
733 SN.U.NoticeWithAttachment($(this).closest('.notice'));
738 * Setup function -- DOES NOT trigger actions immediately.
740 * Sets up special attachment link handling if needed. Currently this
741 * consists only of making the "more" button used for OStatus message
742 * cropping turn into an auto-expansion button that loads the full
743 * text from an attachment file.
745 * @param {jQuery} notice
747 NoticeWithAttachment: function(notice) {
748 if (notice.find('.attachment').length === 0) {
752 var attachment_more = notice.find('.attachment.more');
753 if (attachment_more.length > 0) {
754 $(attachment_more[0]).click(function() {
756 m.addClass(SN.C.S.Processing);
757 $.get(m.attr('href')+'/ajax', null, function(data) {
758 m.parent('.entry-content').html($(data).find('#attachment_view .entry-content').html());
762 }).attr('title', SN.msg('showmore_tooltip'));
767 * Setup function -- DOES NOT trigger actions immediately.
769 * Sets up event handlers for the file-attachment widget in the
770 * new notice form. When a file is selected, a box will be added
771 * below the text input showing the filename and, if supported
772 * by the browser, a thumbnail preview.
774 * This preview box will also allow removing the attachment
777 * @param {jQuery} form
779 NoticeDataAttach: function(form) {
780 var NDA = form.find('input[type=file]');
781 NDA.change(function(event) {
782 form.find('.attach-status').remove();
784 var filename = $(this).val();
786 // No file -- we've been tricked!
790 var attachStatus = $('<div class="attach-status '+SN.C.S.Success+'"><code></code> <button class="close">×</button></div>');
791 attachStatus.find('code').text(filename);
792 attachStatus.find('button').click(function(){
793 attachStatus.remove();
798 form.append(attachStatus);
800 if (typeof this.files == "object") {
801 // Some newer browsers will let us fetch the files for preview.
802 for (var i = 0; i < this.files.length; i++) {
803 SN.U.PreviewAttach(form, this.files[i]);
810 * Get PHP's MAX_FILE_SIZE setting for this form;
811 * used to apply client-side file size limit checks.
813 * @param {jQuery} form
814 * @return int max size in bytes; 0 or negative means no limit
816 maxFileSize: function(form) {
817 var max = $(form).find('input[name=MAX_FILE_SIZE]').attr('value');
819 return parseInt(max);
826 * For browsers with FileAPI support: make a thumbnail if possible,
827 * and append it into the attachment display widget.
830 * - Firefox 3.6.6, 4.0b7
831 * - Chrome 8.0.552.210
833 * Known ok metadata, can't get contents:
837 * - Opera 10.63, 11 beta (no input.files interface)
839 * @param {jQuery} form
842 * @todo use configured thumbnail size
843 * @todo detect pixel size?
844 * @todo should we render a thumbnail to a canvas and then use the smaller image?
846 PreviewAttach: function(form, file) {
847 var tooltip = file.type + ' ' + Math.round(file.size / 1024) + 'KB';
851 if (typeof window.createObjectURL != "undefined") {
853 * createObjectURL lets us reference the file directly from an <img>
854 * This produces a compact URL with an opaque reference to the file,
855 * which we can reference immediately.
857 * - Firefox 3.6.6: no
858 * - Firefox 4.0b7: no
860 * - Chrome 8.0.552.210: works!
862 blobAsDataURL = function(blob, callback) {
863 callback(window.createObjectURL(blob));
865 } else if (typeof window.FileReader != "undefined") {
867 * FileAPI's FileReader can build a data URL from a blob's contents,
868 * but it must read the file and build it asynchronously. This means
869 * we'll be passing a giant data URL around, which may be inefficient.
871 * - Firefox 3.6.6: works!
872 * - Firefox 4.0b7: works!
874 * - Chrome 8.0.552.210: works!
876 blobAsDataURL = function(blob, callback) {
877 var reader = new FileReader();
878 reader.onload = function(event) {
879 callback(reader.result);
881 reader.readAsDataURL(blob);
887 var imageTypes = ['image/png', 'image/jpeg', 'image/gif', 'image/svg+xml'];
888 if ($.inArray(file.type, imageTypes) == -1) {
889 // We probably don't know how to show the file.
893 var maxSize = 8 * 1024 * 1024;
894 if (file.size > maxSize) {
895 // Don't kill the browser trying to load some giant image.
900 blobAsDataURL(file, function(url) {
902 .attr('title', tooltip)
903 .attr('alt', tooltip)
905 .attr('style', 'height: 120px');
906 form.find('.attach-status').append(img);
909 var img = $('<div></div>').text(tooltip);
910 form.find('.attach-status').append(img);
915 * Setup function -- DOES NOT trigger actions immediately.
917 * Initializes state for the location-lookup features in the
918 * new-notice form. Seems to set up some event handlers for
919 * triggering lookups and using the new values.
921 * @param {jQuery} form
924 * @fixme there's not good visual state update here, so users have a
925 * hard time figuring out if it's working or fixing if it's wrong.
928 NoticeLocationAttach: function(form) {
929 // @fixme this should not be tied to the main notice form, as there may be multiple notice forms...
930 var NLat = form.find('[name=lat]')
931 var NLon = form.find('[name=lon]')
932 var NLNS = form.find('[name=location_ns]').val();
933 var NLID = form.find('[name=location_id]').val();
934 var NLN = ''; // @fixme
935 var NDGe = form.find('[name=notice_data-geo]');
936 var check = form.find('[name=notice_data-geo]');
937 var label = form.find('label.notice_data-geo');
939 function removeNoticeDataGeo(error) {
941 .attr('title', jQuery.trim(label.text()))
942 .removeClass('checked');
944 form.find('[name=lat]').val('');
945 form.find('[name=lon]').val('');
946 form.find('[name=location_ns]').val('');
947 form.find('[name=location_id]').val('');
948 form.find('[name=notice_data-geo]').attr('checked', false);
950 $.cookie(SN.C.S.NoticeDataGeoCookie, 'disabled', { path: '/' });
953 form.find('.geo_status_wrapper').removeClass('success').addClass('error');
954 form.find('.geo_status_wrapper .geo_status').text(error);
956 form.find('.geo_status_wrapper').remove();
960 function getJSONgeocodeURL(geocodeURL, data) {
961 SN.U.NoticeGeoStatus(form, 'Looking up place name...');
962 $.getJSON(geocodeURL, data, function(location) {
965 if (typeof(location.location_ns) != 'undefined') {
966 form.find('[name=location_ns]').val(location.location_ns);
967 lns = location.location_ns;
970 if (typeof(location.location_id) != 'undefined') {
971 form.find('[name=location_id]').val(location.location_id);
972 lid = location.location_id;
975 if (typeof(location.name) == 'undefined') {
976 NLN_text = data.lat + ';' + data.lon;
979 NLN_text = location.name;
982 SN.U.NoticeGeoStatus(form, NLN_text, data.lat, data.lon, location.url);
984 .attr('title', NoticeDataGeo_text.ShareDisable + ' (' + NLN_text + ')');
986 form.find('[name=lat]').val(data.lat);
987 form.find('[name=lon]').val(data.lon);
988 form.find('[name=location_ns]').val(lns);
989 form.find('[name=location_id]').val(lid);
990 form.find('[name=notice_data-geo]').attr('checked', true);
1002 $.cookie(SN.C.S.NoticeDataGeoCookie, JSON.stringify(cookieValue), { path: '/' });
1006 if (check.length > 0) {
1007 if ($.cookie(SN.C.S.NoticeDataGeoCookie) == 'disabled') {
1008 check.attr('checked', false);
1011 check.attr('checked', true);
1014 var NGW = form.find('.notice_data-geo_wrap');
1015 var geocodeURL = NGW.attr('title');
1016 NGW.removeAttr('title');
1019 .attr('title', label.text());
1021 check.change(function() {
1022 if (check.attr('checked') === true || $.cookie(SN.C.S.NoticeDataGeoCookie) === null) {
1024 .attr('title', NoticeDataGeo_text.ShareDisable)
1025 .addClass('checked');
1027 if ($.cookie(SN.C.S.NoticeDataGeoCookie) === null || $.cookie(SN.C.S.NoticeDataGeoCookie) == 'disabled') {
1028 if (navigator.geolocation) {
1029 SN.U.NoticeGeoStatus(form, 'Requesting location from browser...');
1030 navigator.geolocation.getCurrentPosition(
1031 function(position) {
1032 form.find('[name=lat]').val(position.coords.latitude);
1033 form.find('[name=lon]').val(position.coords.longitude);
1036 lat: position.coords.latitude,
1037 lon: position.coords.longitude,
1038 token: $('#token').val()
1041 getJSONgeocodeURL(geocodeURL, data);
1045 switch(error.code) {
1046 case error.PERMISSION_DENIED:
1047 removeNoticeDataGeo('Location permission denied.');
1050 //$('#'+SN.C.S.NoticeDataGeo).attr('checked', false);
1051 removeNoticeDataGeo('Location lookup timeout.');
1062 if (NLat.length > 0 && NLon.length > 0) {
1066 token: $('#token').val()
1069 getJSONgeocodeURL(geocodeURL, data);
1072 removeNoticeDataGeo();
1079 var cookieValue = JSON.parse($.cookie(SN.C.S.NoticeDataGeoCookie));
1081 form.find('[name=lat]').val(cookieValue.NLat);
1082 form.find('[name=lon]').val(cookieValue.NLon);
1083 form.find('[name=location_ns]').val(cookieValue.NLNS);
1084 form.find('[name=location_id]').val(cookieValue.NLID);
1085 form.find('[name=notice_data-geo]').attr('checked', cookieValue.NDG);
1087 SN.U.NoticeGeoStatus(form, cookieValue.NLN, cookieValue.NLat, cookieValue.NLon, cookieValue.NLNU);
1089 .attr('title', NoticeDataGeo_text.ShareDisable + ' (' + cookieValue.NLN + ')')
1090 .addClass('checked');
1094 removeNoticeDataGeo();
1101 * Create or update a geolocation status widget in this notice posting form.
1103 * @param {jQuery} form
1104 * @param {String} status
1105 * @param {String} lat (optional)
1106 * @param {String} lon (optional)
1107 * @param {String} url (optional)
1109 NoticeGeoStatus: function(form, status, lat, lon, url)
1111 var wrapper = form.find('.geo_status_wrapper');
1112 if (wrapper.length == 0) {
1113 wrapper = $('<div class="'+SN.C.S.Success+' geo_status_wrapper"><button class="close" style="float:right">×</button><div class="geo_status"></div></div>');
1114 wrapper.find('button.close').click(function() {
1115 form.find('[name=notice_data-geo]').removeAttr('checked').change();
1117 form.append(wrapper);
1121 label = $('<a></a>').attr('href', url);
1123 label = $('<span></span>');
1127 var latlon = lat + ';' + lon;
1128 label.attr('title', latlon);
1133 wrapper.find('.geo_status').empty().append(label);
1137 * Setup function -- DOES NOT trigger actions immediately.
1139 * Initializes event handlers for the "Send direct message" link on
1140 * profile pages, setting it up to display a dialog box when clicked.
1142 * Unlike the repeat confirmation form, this appears to fetch
1143 * the form _from the original link target_, so the form itself
1144 * doesn't need to be in the current document.
1146 * @fixme breaks ability to open link in new window?
1148 NewDirectMessage: function() {
1149 NDM = $('.entity_send-a-message a');
1150 NDM.attr({'href':NDM.attr('href')+'&ajax=1'});
1151 NDM.bind('click', function() {
1152 var NDMF = $('.entity_send-a-message form');
1153 if (NDMF.length === 0) {
1154 $(this).addClass(SN.C.S.Processing);
1155 $.get(NDM.attr('href'), null, function(data) {
1156 $('.entity_send-a-message').append(document._importNode($('form', data)[0], true));
1157 NDMF = $('.entity_send-a-message .form_notice');
1158 SN.U.FormNoticeXHR(NDMF);
1159 SN.U.FormNoticeEnhancements(NDMF);
1160 NDMF.append('<button class="close">×</button>');
1161 $('.entity_send-a-message button').click(function(){
1165 NDM.removeClass(SN.C.S.Processing);
1170 $('.entity_send-a-message textarea').focus();
1177 * Return a date object with the current local time on the
1178 * given year, month, and day.
1180 * @param {number} year: 4-digit year
1181 * @param {number} month: 0 == January
1182 * @param {number} day: 1 == 1
1185 GetFullYear: function(year, month, day) {
1186 var date = new Date();
1187 date.setFullYear(year, month, day);
1193 * Some sort of object interface for storing some structured
1194 * information in a cookie.
1196 * Appears to be used to save the last-used login nickname?
1197 * That's something that browsers usually take care of for us
1198 * these days, do we really need to do it? Does anything else
1199 * use this interface?
1201 * @fixme what is this?
1202 * @fixme should this use non-cookie local storage when available?
1204 StatusNetInstance: {
1206 * @fixme what is this?
1208 Set: function(value) {
1209 var SNI = SN.U.StatusNetInstance.Get();
1211 value = $.extend(SNI, value);
1215 SN.C.S.StatusNetInstance,
1216 JSON.stringify(value),
1219 expires: SN.U.GetFullYear(2029, 0, 1)
1224 * @fixme what is this?
1227 var cookieValue = $.cookie(SN.C.S.StatusNetInstance);
1228 if (cookieValue !== null) {
1229 return JSON.parse(cookieValue);
1235 * @fixme what is this?
1237 Delete: function() {
1238 $.cookie(SN.C.S.StatusNetInstance, null);
1243 * Check if the current page is a timeline where the current user's
1244 * posts should be displayed immediately on success.
1246 * @fixme this should be done in a saner way, with machine-readable
1247 * info about what page we're looking at.
1249 * @param {DOMElement} notice: HTML chunk with formatted notice
1252 belongsOnTimeline: function(notice) {
1253 var action = $("body").attr('id');
1254 if (action == 'public') {
1258 var profileLink = $('#nav_profile a').attr('href');
1260 var authorUrl = $(notice).find('.entry-title .author a.url').attr('href');
1261 if (authorUrl == profileLink) {
1262 if (action == 'all' || action == 'showstream') {
1263 // Posts always show on your own friends and profile streams.
1269 // @fixme tag, group, reply timelines should be feasible as well.
1270 // Mismatch between id-based and name-based user/group links currently complicates
1271 // the lookup, since all our inline mentions contain the absolute links but the
1272 // UI links currently on the page use malleable names.
1280 * If user is logged in, run setup code for the new notice form:
1285 * - file upload events
1287 NoticeForm: function() {
1288 if ($('body.user_in').length > 0) {
1289 $('.'+SN.C.S.FormNotice).each(function() {
1291 SN.U.NoticeLocationAttach(form);
1292 SN.U.FormNoticeXHR(form);
1293 SN.U.FormNoticeEnhancements(form);
1294 SN.U.NoticeDataAttach(form);
1300 * Run setup code for notice timeline views items:
1302 * - AJAX submission for fave/repeat/reply (if logged in)
1303 * - Attachment link extras ('more' links)
1305 Notices: function() {
1306 if ($('body.user_in').length > 0) {
1308 SN.U.NoticeRepeat();
1310 SN.U.NoticeInlineReplySetup();
1313 SN.U.NoticeAttachments();
1317 * Run setup code for user & group profile page header area if logged in:
1319 * - AJAX submission for sub/unsub/join/leave/nudge
1320 * - AJAX form popup for direct-message
1322 EntityActions: function() {
1323 if ($('body.user_in').length > 0) {
1324 $('.form_user_subscribe').live('click', function() { SN.U.FormXHR($(this)); return false; });
1325 $('.form_user_unsubscribe').live('click', function() { SN.U.FormXHR($(this)); return false; });
1326 $('.form_group_join').live('click', function() { SN.U.FormXHR($(this)); return false; });
1327 $('.form_group_leave').live('click', function() { SN.U.FormXHR($(this)); return false; });
1328 $('.form_user_nudge').live('click', function() { SN.U.FormXHR($(this)); return false; });
1330 SN.U.NewDirectMessage();
1335 * Run setup code for login form:
1337 * - loads saved last-used-nickname from cookie
1338 * - sets event handler to save nickname to cookie on submit
1340 * @fixme is this necessary? Browsers do their own form saving these days.
1343 if (SN.U.StatusNetInstance.Get() !== null) {
1344 var nickname = SN.U.StatusNetInstance.Get().Nickname;
1345 if (nickname !== null) {
1346 $('#form_login #nickname').val(nickname);
1350 $('#form_login').bind('submit', function() {
1351 SN.U.StatusNetInstance.Set({Nickname: $('#form_login #nickname').val()});
1357 * Add logic to any file upload forms to handle file size limits,
1358 * on browsers that support basic FileAPI.
1360 UploadForms: function () {
1361 $('input[type=file]').change(function(event) {
1362 if (typeof this.files == "object" && this.files.length > 0) {
1364 for (var i = 0; i < this.files.length; i++) {
1365 size += this.files[i].size;
1368 var max = SN.U.maxFileSize($(this.form));
1369 if (max > 0 && size > max) {
1370 var msg = 'File too large: maximum upload size is %d bytes.';
1371 alert(msg.replace('%d', max));
1375 event.preventDefault();
1385 * Run initialization functions on DOM-ready.
1387 * Note that if we're waiting on other scripts to load, this won't happen
1388 * until that's done. To load scripts asynchronously without delaying setup,
1389 * don't start them loading until after DOM-ready time!
1391 $(document).ready(function(){
1392 SN.Init.UploadForms();
1393 if ($('.'+SN.C.S.FormNotice).length > 0) {
1394 SN.Init.NoticeForm();
1396 if ($('#content .notices').length > 0) {
1399 if ($('#content .entity_actions').length > 0) {
1400 SN.Init.EntityActions();
1402 if ($('#form_login').length > 0) {