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],
35 NoticeFormMaster: null // to be cloned from the one at top
39 * @fixme are these worth the trouble? They seem to mostly just duplicate
40 * themselves while slightly obscuring the actual selector, so it's hard
41 * to pop over to the HTML and find something.
43 * In theory, minification could reduce them to shorter variable names,
44 * but at present that doesn't happen with yui-compressor.
51 Processing: 'processing',
52 CommandResult: 'command_result',
53 FormNotice: 'form_notice',
54 NoticeDataGeo: 'notice_data-geo',
55 NoticeDataGeoCookie: 'NoticeDataGeo',
56 NoticeDataGeoSelected: 'notice_data-geo_selected',
57 StatusNetInstance:'StatusNetInstance'
62 * Map of localized message strings exported to script from the PHP
63 * side via Action::getScriptMessages().
65 * Retrieve them via SN.msg(); this array is an implementation detail.
72 * Grabs a localized string that's been previously exported to us
73 * from server-side code via Action::getScriptMessages().
75 * @example alert(SN.msg('coolplugin-failed'));
77 * @param {String} key: string key name to pull from message index
78 * @return matching localized message string
81 if (typeof SN.messages[key] == "undefined") {
82 return '[' + key + ']';
84 return SN.messages[key];
90 * Setup function -- DOES NOT trigger actions immediately.
92 * Sets up event handlers on the new notice form.
94 * @param {jQuery} form: jQuery object whose first matching element is the form
97 FormNoticeEnhancements: function(form) {
98 if (jQuery.data(form[0], 'ElementData') === undefined) {
99 MaxLength = form.find('.count').text();
100 if (typeof(MaxLength) == 'undefined') {
101 MaxLength = SN.C.I.MaxLength;
103 jQuery.data(form[0], 'ElementData', {MaxLength:MaxLength});
107 NDT = form.find('.notice_data-text:first');
109 NDT.bind('keyup', function(e) {
113 var delayedUpdate= function(e) {
114 // Cut and paste events fire *before* the operation,
115 // so we need to trigger an update in a little bit.
116 // This would be so much easier if the 'change' event
117 // actually fired every time the value changed. :P
118 window.setTimeout(function() {
122 // Note there's still no event for mouse-triggered 'delete'.
123 NDT.bind('cut', delayedUpdate)
124 .bind('paste', delayedUpdate);
127 form.find('.count').text(jQuery.data(form[0], 'ElementData').MaxLength);
132 * To be called from event handlers on the notice import form.
133 * Triggers an update of the remaining-characters counter.
135 * Additional counter updates will be suppressed during the
136 * next half-second to avoid flooding the layout engine with
137 * updates, followed by another automatic check.
139 * The maximum length is pulled from data established by
140 * FormNoticeEnhancements.
142 * @param {jQuery} form: jQuery object whose first element is the notice posting form
145 Counter: function(form) {
146 SN.C.I.FormNoticeCurrent = form;
148 var MaxLength = jQuery.data(form[0], 'ElementData').MaxLength;
150 if (MaxLength <= 0) {
154 var remaining = MaxLength - SN.U.CharacterCount(form);
155 var counter = form.find('.count');
157 if (remaining.toString() != counter.text()) {
158 if (!SN.C.I.CounterBlackout || remaining === 0) {
159 if (counter.text() != String(remaining)) {
160 counter.text(remaining);
163 form.addClass(SN.C.S.Warning);
165 form.removeClass(SN.C.S.Warning);
167 // Skip updates for the next 500ms.
168 // On slower hardware, updating on every keypress is unpleasant.
169 if (!SN.C.I.CounterBlackout) {
170 SN.C.I.CounterBlackout = true;
171 SN.C.I.FormNoticeCurrent = form;
172 window.setTimeout("SN.U.ClearCounterBlackout(SN.C.I.FormNoticeCurrent);", 500);
179 * Pull the count of characters in the current edit field.
180 * Plugins replacing the edit control may need to override this.
182 * @param {jQuery} form: jQuery object whose first element is the notice posting form
183 * @return number of chars
185 CharacterCount: function(form) {
186 return form.find('.notice_data-text:first').val().length;
190 * Called internally after the counter update blackout period expires;
191 * runs another update to make sure we didn't miss anything.
193 * @param {jQuery} form: jQuery object whose first element is the notice posting form
196 ClearCounterBlackout: function(form) {
197 // Allow keyup events to poke the counter again
198 SN.C.I.CounterBlackout = false;
199 // Check if the string changed since we last looked
204 * Helper function to rewrite default HTTP form action URLs to HTTPS
205 * so we can actually fetch them when on an SSL page in ssl=sometimes
208 * It would be better to output URLs that didn't hardcode protocol
209 * and hostname in the first place...
211 * @param {String} url
214 RewriteAjaxAction: function(url) {
215 // Quick hack: rewrite AJAX submits to HTTPS if they'd fail otherwise.
216 if (document.location.protocol == 'https:' && url.substr(0, 5) == 'http:') {
217 return url.replace(/^http:\/\/[^:\/]+/, 'https://' + document.location.host);
224 * Grabs form data and submits it asynchronously, with 'ajax=1'
225 * parameter added to the rest.
227 * If a successful response includes another form, that form
228 * will be extracted and copied in, replacing the original form.
229 * If there's no form, the first paragraph will be used.
231 * This will automatically be applied on the 'submit' event for
232 * any form with the 'ajax' class.
234 * @fixme can sometimes explode confusingly if returnd data is bogus
235 * @fixme error handling is pretty vague
236 * @fixme can't submit file uploads
238 * @param {jQuery} form: jQuery object whose first element is a form
242 FormXHR: function(form) {
246 url: SN.U.RewriteAjaxAction(form.attr('action')),
247 data: form.serialize() + '&ajax=1',
248 beforeSend: function(xhr) {
250 .addClass(SN.C.S.Processing)
252 .addClass(SN.C.S.Disabled)
253 .attr(SN.C.S.Disabled, SN.C.S.Disabled);
255 error: function (xhr, textStatus, errorThrown) {
256 // If the server end reported an error from StatusNet,
257 // find it -- otherwise we'll see what was reported
259 var errorReported = null;
260 if (xhr.responseXML) {
261 errorReported = $('#error', xhr.responseXML).text();
263 alert(errorReported || errorThrown || textStatus);
265 // Restore the form to original state.
268 .removeClass(SN.C.S.Processing)
270 .removeClass(SN.C.S.Disabled)
271 .removeAttr(SN.C.S.Disabled);
273 success: function(data, textStatus) {
274 if (typeof($('form', data)[0]) != 'undefined') {
275 form_new = document._importNode($('form', data)[0], true);
276 form.replaceWith(form_new);
278 else if (typeof($('p', data)[0]) != 'undefined') {
279 form.replaceWith(document._importNode($('p', data)[0], true));
282 alert('Unknown error.');
289 * Setup function -- DOES NOT trigger actions immediately.
291 * Sets up event handlers for special-cased async submission of the
292 * notice-posting form, including some pre-post validation.
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
299 * Also unlike FormXHR(), this system will use a hidden iframe
300 * automatically to handle file uploads via <input type="file">
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?
311 * @param {jQuery} form: jQuery object whose first element is a form
315 FormNoticeXHR: function(form) {
316 SN.C.I.NoticeDataGeo = {};
317 form.append('<input type="hidden" name="ajax" value="1"/>');
319 // Make sure we don't have a mixed HTTP/HTTPS submission...
320 form.attr('action', SN.U.RewriteAjaxAction(form.attr('action')));
323 * Show a response feedback bit under the new-notice dialog.
325 * @param {String} cls: CSS class name to use ('error' or 'success')
326 * @param {String} text
329 var showFeedback = function(cls, text) {
331 $('<p class="form_response"></p>')
338 * Hide the previous response feedback, if any.
340 var removeFeedback = function() {
341 form.find('.form_response').remove();
347 beforeSend: function(formData) {
348 if (form.find('.notice_data-text:first').val() == '') {
349 form.addClass(SN.C.S.Warning);
353 .addClass(SN.C.S.Processing)
355 .addClass(SN.C.S.Disabled)
356 .attr(SN.C.S.Disabled, SN.C.S.Disabled);
358 SN.U.normalizeGeoData(form);
362 error: function (xhr, textStatus, errorThrown) {
364 .removeClass(SN.C.S.Processing)
366 .removeClass(SN.C.S.Disabled)
367 .removeAttr(SN.C.S.Disabled, SN.C.S.Disabled);
369 if (textStatus == 'timeout') {
371 showFeedback('error', 'Sorry! We had trouble sending your notice. The servers are overloaded. Please try again, and contact the site administrator if this problem persists.');
374 var response = SN.U.GetResponseXML(xhr);
375 if ($('.'+SN.C.S.Error, response).length > 0) {
376 form.append(document._importNode($('.'+SN.C.S.Error, response)[0], true));
379 if (parseInt(xhr.status) === 0 || jQuery.inArray(parseInt(xhr.status), SN.C.I.HTTP20x30x) >= 0) {
382 .find('.attach-status').remove();
383 SN.U.FormNoticeEnhancements(form);
387 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.');
392 success: function(data, textStatus) {
394 var errorResult = $('#'+SN.C.S.Error, data);
395 if (errorResult.length > 0) {
396 showFeedback('error', errorResult.text());
399 if($('body')[0].id == 'bookmarklet') {
400 // @fixme self is not referenced anywhere?
404 var commandResult = $('#'+SN.C.S.CommandResult, data);
405 if (commandResult.length > 0) {
406 showFeedback('success', commandResult.text());
409 // New notice post was successful. If on our timeline, show it!
410 var notice = document._importNode($('li', data)[0], true);
411 var notices = $('#notices_primary .notices:first');
412 var replyItem = form.closest('li.notice-reply');
414 if (replyItem.length > 0) {
415 // If this is an inline reply, insert it in place.
416 var id = $(notice).attr('id');
417 if ($("#"+id).length == 0) {
418 var parentNotice = replyItem.closest('li.notice');
419 replyItem.replaceWith(notice);
420 SN.U.NoticeInlineReplyPlaceholder(parentNotice);
422 // Realtime came through before us...
425 } else if (notices.length > 0 && SN.U.belongsOnTimeline(notice)) {
426 // Not a reply. If on our timeline, show it at the top!
428 if ($('#'+notice.id).length === 0) {
429 var notice_irt_value = form.find('[name=inreplyto]').val();
430 var notice_irt = '#notices_primary #notice-'+notice_irt_value;
431 if($('body')[0].id == 'conversation') {
432 if(notice_irt_value.length > 0 && $(notice_irt+' .notices').length < 1) {
433 $(notice_irt).append('<ul class="notices"></ul>');
435 $($(notice_irt+' .notices')[0]).append(notice);
438 notices.prepend(notice);
441 .css({display:'none'})
443 SN.U.NoticeWithAttachment($('#'+notice.id));
444 SN.U.switchInputFormTab("placeholder");
447 // Not on a timeline that this belongs on?
448 // Just show a success message.
450 showFeedback('success', $('title', data).text());
454 form.find('[name=inreplyto]').val('');
455 form.find('.attach-status').remove();
456 SN.U.FormNoticeEnhancements(form);
459 complete: function(xhr, textStatus) {
461 .removeClass(SN.C.S.Processing)
463 .removeAttr(SN.C.S.Disabled)
464 .removeClass(SN.C.S.Disabled);
466 form.find('[name=lat]').val(SN.C.I.NoticeDataGeo.NLat);
467 form.find('[name=lon]').val(SN.C.I.NoticeDataGeo.NLon);
468 form.find('[name=location_ns]').val(SN.C.I.NoticeDataGeo.NLNS);
469 form.find('[name=location_id]').val(SN.C.I.NoticeDataGeo.NLID);
470 form.find('[name=notice_data-geo]').attr('checked', SN.C.I.NoticeDataGeo.NDG);
475 normalizeGeoData: function(form) {
476 SN.C.I.NoticeDataGeo.NLat = form.find('[name=lat]').val();
477 SN.C.I.NoticeDataGeo.NLon = form.find('[name=lon]').val();
478 SN.C.I.NoticeDataGeo.NLNS = form.find('[name=location_ns]').val();
479 SN.C.I.NoticeDataGeo.NLID = form.find('[name=location_id]').val();
480 SN.C.I.NoticeDataGeo.NDG = form.find('[name=notice_data-geo]').attr('checked'); // @fixme
482 var cookieValue = $.cookie(SN.C.S.NoticeDataGeoCookie);
484 if (cookieValue !== null && cookieValue != 'disabled') {
485 cookieValue = JSON.parse(cookieValue);
486 SN.C.I.NoticeDataGeo.NLat = form.find('[name=lat]').val(cookieValue.NLat).val();
487 SN.C.I.NoticeDataGeo.NLon = form.find('[name=lon]').val(cookieValue.NLon).val();
488 if (cookieValue.NLNS) {
489 SN.C.I.NoticeDataGeo.NLNS = form.find('[name=location_ns]').val(cookieValue.NLNS).val();
490 SN.C.I.NoticeDataGeo.NLID = form.find('[name=location_id]').val(cookieValue.NLID).val();
492 form.find('[name=location_ns]').val('');
493 form.find('[name=location_id]').val('');
496 if (cookieValue == 'disabled') {
497 SN.C.I.NoticeDataGeo.NDG = form.find('[name=notice_data-geo]').attr('checked', false).attr('checked');
500 SN.C.I.NoticeDataGeo.NDG = form.find('[name=notice_data-geo]').attr('checked', true).attr('checked');
505 * Fetch an XML DOM from an XHR's response data.
507 * Works around unavailable responseXML when document.domain
508 * has been modified by Meteor or other tools, in some but not
511 * @param {XMLHTTPRequest} xhr
512 * @return DOMDocument
514 GetResponseXML: function(xhr) {
516 return xhr.responseXML;
518 return (new DOMParser()).parseFromString(xhr.responseText, "text/xml");
523 * Setup function -- DOES NOT trigger actions immediately.
525 * Sets up event handlers on all visible notice's reply buttons to
526 * tweak the new-notice form with needed variables and focus it
529 * (This replaces the default reply button behavior to submit
530 * directly to a form which comes back with a specialized page
531 * with the form data prefilled.)
535 NoticeReply: function() {
536 $('#content .notice_reply').live('click', function(e) {
538 var notice = $(this).closest('li.notice');
539 var nickname = ($('.author .nickname', notice).length > 0) ? $($('.author .nickname', notice)[0]) : $('.author .nickname.uid');
540 SN.U.NoticeInlineReplyTrigger(notice, '@' + nickname.text());
546 * Stub -- kept for compat with plugins for now.
549 NoticeReplyTo: function(notice) {
553 * Open up a notice's inline reply box.
555 * @param {jQuery} notice: jQuery object containing one notice
556 * @param {String} initialText
558 NoticeInlineReplyTrigger: function(notice, initialText) {
559 // Find the notice we're replying to...
560 var id = $($('.notice_id', notice)[0]).text();
561 var parentNotice = notice;
563 // Find the threaded replies view we'll be adding to...
564 var list = notice.closest('.notices');
565 if (list.hasClass('threaded-replies')) {
566 // We're replying to a reply; use reply form on the end of this list.
567 // We'll add our form at the end of this; grab the root notice.
568 parentNotice = list.closest('.notice');
570 // We're replying to a parent notice; pull its threaded list
571 // and we'll add on the end of it. Will add if needed.
572 list = $('ul.threaded-replies', notice);
573 if (list.length == 0) {
574 list = $('<ul class="notices threaded-replies xoxo"></ul>');
579 // See if the form's already open...
580 var replyForm = $('.notice-reply-form', list);
582 var nextStep = function() {
584 replyForm.find('input[name=inreplyto]').val(id);
587 var text = replyForm.find('textarea');
588 if (text.length == 0) {
593 replyto = initialText + ' ';
595 text.val(replyto + text.val().replace(RegExp(replyto, 'i'), ''));
596 text.data('initialText', $.trim(initialText + ''));
598 if (text[0].setSelectionRange) {
599 var len = text.val().length;
600 text[0].setSelectionRange(len,len);
603 if (replyForm.length > 0) {
604 // Update the existing form...
607 // Remove placeholder if any
608 list.find('li.notice-reply-placeholder').remove();
610 // Create the reply form entry at the end
611 var replyItem = $('li.notice-reply', list);
612 if (replyItem.length == 0) {
613 replyItem = $('<li class="notice-reply"></li>');
615 var intermediateStep = function(formMaster) {
616 var formEl = document._importNode(formMaster, true);
617 replyItem.append(formEl);
618 list.append(replyItem);
620 var form = replyForm = $(formEl);
621 SN.Init.NoticeFormSetup(form);
625 if (SN.C.I.NoticeFormMaster) {
626 // We've already saved a master copy of the form.
628 intermediateStep(SN.C.I.NoticeFormMaster);
630 // Fetch a fresh copy of the notice form over AJAX.
631 // Warning: this can have a delay, which looks bad.
632 // @fixme this fallback may or may not work
633 var url = $('#form_notice').attr('action');
634 $.get(url, {ajax: 1}, function(data, textStatus, xhr) {
635 intermediateStep($('form', data)[0]);
642 NoticeInlineReplyPlaceholder: function(notice) {
643 var list = notice.find('ul.threaded-replies');
644 var placeholder = $('<li class="notice-reply-placeholder">' +
645 '<input class="placeholder">' +
647 placeholder.find('input')
648 .val(SN.msg('reply_placeholder'));
649 list.append(placeholder);
653 * Setup function -- DOES NOT apply immediately.
655 * Sets up event handlers for inline reply mini-form placeholders.
656 * Uses 'live' rather than 'bind', so applies to future as well as present items.
658 NoticeInlineReplySetup: function() {
659 $('li.notice-reply-placeholder input')
660 .live('focus', function() {
661 var notice = $(this).closest('li.notice');
662 SN.U.NoticeInlineReplyTrigger(notice);
668 * Setup function -- DOES NOT trigger actions immediately.
670 * Sets up event handlers for repeat forms to toss up a confirmation
671 * popout before submitting.
673 * Uses 'live' rather than 'bind', so applies to future as well as present items.
675 NoticeRepeat: function() {
676 $('.form_repeat').live('click', function(e) {
679 SN.U.NoticeRepeatConfirmation($(this));
685 * Shows a confirmation dialog box variant of the repeat button form.
686 * This seems to use a technique where the repeat form contains
687 * _both_ a standalone button _and_ text and buttons for a dialog.
688 * The dialog will close after its copy of the form is submitted,
689 * or if you click its 'close' button.
691 * The dialog is created by duplicating the original form and changing
692 * its style; while clever, this is hard to generalize and probably
693 * duplicates a lot of unnecessary HTML output.
695 * @fixme create confirmation dialogs through a generalized interface
696 * that can be reused instead of hardcoded text and styles.
698 * @param {jQuery} form
700 NoticeRepeatConfirmation: function(form) {
701 var submit_i = form.find('.submit');
703 var submit = submit_i.clone();
705 .addClass('submit_dialogbox')
706 .removeClass('submit');
708 submit.bind('click', function() { SN.U.FormXHR(form); return false; });
713 .addClass('dialogbox')
714 .append('<button class="close">×</button>')
715 .closest('.notice-options')
718 form.find('button.close').click(function(){
722 .removeClass('dialogbox')
723 .closest('.notice-options')
724 .removeClass('opaque');
726 form.find('.submit_dialogbox').remove();
727 form.find('.submit').show();
734 * Setup function -- DOES NOT trigger actions immediately.
736 * Goes through all notices currently displayed and sets up attachment
737 * handling if needed.
739 NoticeAttachments: function() {
740 $('.notice a.attachment').each(function() {
741 SN.U.NoticeWithAttachment($(this).closest('.notice'));
746 * Setup function -- DOES NOT trigger actions immediately.
748 * Sets up special attachment link handling if needed. Currently this
749 * consists only of making the "more" button used for OStatus message
750 * cropping turn into an auto-expansion button that loads the full
751 * text from an attachment file.
753 * @param {jQuery} notice
755 NoticeWithAttachment: function(notice) {
756 if (notice.find('.attachment').length === 0) {
760 var attachment_more = notice.find('.attachment.more');
761 if (attachment_more.length > 0) {
762 $(attachment_more[0]).click(function() {
764 m.addClass(SN.C.S.Processing);
765 $.get(m.attr('href')+'/ajax', null, function(data) {
766 m.parent('.entry-content').html($(data).find('#attachment_view .entry-content').html());
770 }).attr('title', SN.msg('showmore_tooltip'));
775 * Setup function -- DOES NOT trigger actions immediately.
777 * Sets up event handlers for the file-attachment widget in the
778 * new notice form. When a file is selected, a box will be added
779 * below the text input showing the filename and, if supported
780 * by the browser, a thumbnail preview.
782 * This preview box will also allow removing the attachment
785 * @param {jQuery} form
787 NoticeDataAttach: function(form) {
788 var NDA = form.find('input[type=file]');
789 NDA.change(function(event) {
790 form.find('.attach-status').remove();
792 var filename = $(this).val();
794 // No file -- we've been tricked!
798 var attachStatus = $('<div class="attach-status '+SN.C.S.Success+'"><code></code> <button class="close">×</button></div>');
799 attachStatus.find('code').text(filename);
800 attachStatus.find('button').click(function(){
801 attachStatus.remove();
806 form.append(attachStatus);
808 if (typeof this.files == "object") {
809 // Some newer browsers will let us fetch the files for preview.
810 for (var i = 0; i < this.files.length; i++) {
811 SN.U.PreviewAttach(form, this.files[i]);
818 * Get PHP's MAX_FILE_SIZE setting for this form;
819 * used to apply client-side file size limit checks.
821 * @param {jQuery} form
822 * @return int max size in bytes; 0 or negative means no limit
824 maxFileSize: function(form) {
825 var max = $(form).find('input[name=MAX_FILE_SIZE]').attr('value');
827 return parseInt(max);
834 * For browsers with FileAPI support: make a thumbnail if possible,
835 * and append it into the attachment display widget.
838 * - Firefox 3.6.6, 4.0b7
839 * - Chrome 8.0.552.210
841 * Known ok metadata, can't get contents:
845 * - Opera 10.63, 11 beta (no input.files interface)
847 * @param {jQuery} form
850 * @todo use configured thumbnail size
851 * @todo detect pixel size?
852 * @todo should we render a thumbnail to a canvas and then use the smaller image?
854 PreviewAttach: function(form, file) {
855 var tooltip = file.type + ' ' + Math.round(file.size / 1024) + 'KB';
859 if (typeof window.createObjectURL != "undefined") {
861 * createObjectURL lets us reference the file directly from an <img>
862 * This produces a compact URL with an opaque reference to the file,
863 * which we can reference immediately.
865 * - Firefox 3.6.6: no
866 * - Firefox 4.0b7: no
868 * - Chrome 8.0.552.210: works!
870 blobAsDataURL = function(blob, callback) {
871 callback(window.createObjectURL(blob));
873 } else if (typeof window.FileReader != "undefined") {
875 * FileAPI's FileReader can build a data URL from a blob's contents,
876 * but it must read the file and build it asynchronously. This means
877 * we'll be passing a giant data URL around, which may be inefficient.
879 * - Firefox 3.6.6: works!
880 * - Firefox 4.0b7: works!
882 * - Chrome 8.0.552.210: works!
884 blobAsDataURL = function(blob, callback) {
885 var reader = new FileReader();
886 reader.onload = function(event) {
887 callback(reader.result);
889 reader.readAsDataURL(blob);
895 var imageTypes = ['image/png', 'image/jpeg', 'image/gif', 'image/svg+xml'];
896 if ($.inArray(file.type, imageTypes) == -1) {
897 // We probably don't know how to show the file.
901 var maxSize = 8 * 1024 * 1024;
902 if (file.size > maxSize) {
903 // Don't kill the browser trying to load some giant image.
908 blobAsDataURL(file, function(url) {
910 .attr('title', tooltip)
911 .attr('alt', tooltip)
913 .attr('style', 'height: 120px');
914 form.find('.attach-status').append(img);
917 var img = $('<div></div>').text(tooltip);
918 form.find('.attach-status').append(img);
923 * Setup function -- DOES NOT trigger actions immediately.
925 * Initializes state for the location-lookup features in the
926 * new-notice form. Seems to set up some event handlers for
927 * triggering lookups and using the new values.
929 * @param {jQuery} form
932 * @fixme there's not good visual state update here, so users have a
933 * hard time figuring out if it's working or fixing if it's wrong.
936 NoticeLocationAttach: function(form) {
937 // @fixme this should not be tied to the main notice form, as there may be multiple notice forms...
938 var NLat = form.find('[name=lat]')
939 var NLon = form.find('[name=lon]')
940 var NLNS = form.find('[name=location_ns]').val();
941 var NLID = form.find('[name=location_id]').val();
942 var NLN = ''; // @fixme
943 var NDGe = form.find('[name=notice_data-geo]');
944 var check = form.find('[name=notice_data-geo]');
945 var label = form.find('label.notice_data-geo');
947 function removeNoticeDataGeo(error) {
949 .attr('title', jQuery.trim(label.text()))
950 .removeClass('checked');
952 form.find('[name=lat]').val('');
953 form.find('[name=lon]').val('');
954 form.find('[name=location_ns]').val('');
955 form.find('[name=location_id]').val('');
956 form.find('[name=notice_data-geo]').attr('checked', false);
958 $.cookie(SN.C.S.NoticeDataGeoCookie, 'disabled', { path: '/' });
961 form.find('.geo_status_wrapper').removeClass('success').addClass('error');
962 form.find('.geo_status_wrapper .geo_status').text(error);
964 form.find('.geo_status_wrapper').remove();
968 function getJSONgeocodeURL(geocodeURL, data) {
969 SN.U.NoticeGeoStatus(form, 'Looking up place name...');
970 $.getJSON(geocodeURL, data, function(location) {
973 if (typeof(location.location_ns) != 'undefined') {
974 form.find('[name=location_ns]').val(location.location_ns);
975 lns = location.location_ns;
978 if (typeof(location.location_id) != 'undefined') {
979 form.find('[name=location_id]').val(location.location_id);
980 lid = location.location_id;
983 if (typeof(location.name) == 'undefined') {
984 NLN_text = data.lat + ';' + data.lon;
987 NLN_text = location.name;
990 SN.U.NoticeGeoStatus(form, NLN_text, data.lat, data.lon, location.url);
992 .attr('title', NoticeDataGeo_text.ShareDisable + ' (' + NLN_text + ')');
994 form.find('[name=lat]').val(data.lat);
995 form.find('[name=lon]').val(data.lon);
996 form.find('[name=location_ns]').val(lns);
997 form.find('[name=location_id]').val(lid);
998 form.find('[name=notice_data-geo]').attr('checked', true);
1010 $.cookie(SN.C.S.NoticeDataGeoCookie, JSON.stringify(cookieValue), { path: '/' });
1014 if (check.length > 0) {
1015 if ($.cookie(SN.C.S.NoticeDataGeoCookie) == 'disabled') {
1016 check.attr('checked', false);
1019 check.attr('checked', true);
1022 var NGW = form.find('.notice_data-geo_wrap');
1023 var geocodeURL = NGW.attr('data-api');
1026 .attr('title', label.text());
1028 check.change(function() {
1029 if (check.attr('checked') === true || $.cookie(SN.C.S.NoticeDataGeoCookie) === null) {
1031 .attr('title', NoticeDataGeo_text.ShareDisable)
1032 .addClass('checked');
1034 if ($.cookie(SN.C.S.NoticeDataGeoCookie) === null || $.cookie(SN.C.S.NoticeDataGeoCookie) == 'disabled') {
1035 if (navigator.geolocation) {
1036 SN.U.NoticeGeoStatus(form, 'Requesting location from browser...');
1037 navigator.geolocation.getCurrentPosition(
1038 function(position) {
1039 form.find('[name=lat]').val(position.coords.latitude);
1040 form.find('[name=lon]').val(position.coords.longitude);
1043 lat: position.coords.latitude,
1044 lon: position.coords.longitude,
1045 token: $('#token').val()
1048 getJSONgeocodeURL(geocodeURL, data);
1052 switch(error.code) {
1053 case error.PERMISSION_DENIED:
1054 removeNoticeDataGeo('Location permission denied.');
1057 //$('#'+SN.C.S.NoticeDataGeo).attr('checked', false);
1058 removeNoticeDataGeo('Location lookup timeout.');
1069 if (NLat.length > 0 && NLon.length > 0) {
1073 token: $('#token').val()
1076 getJSONgeocodeURL(geocodeURL, data);
1079 removeNoticeDataGeo();
1086 var cookieValue = JSON.parse($.cookie(SN.C.S.NoticeDataGeoCookie));
1088 form.find('[name=lat]').val(cookieValue.NLat);
1089 form.find('[name=lon]').val(cookieValue.NLon);
1090 form.find('[name=location_ns]').val(cookieValue.NLNS);
1091 form.find('[name=location_id]').val(cookieValue.NLID);
1092 form.find('[name=notice_data-geo]').attr('checked', cookieValue.NDG);
1094 SN.U.NoticeGeoStatus(form, cookieValue.NLN, cookieValue.NLat, cookieValue.NLon, cookieValue.NLNU);
1096 .attr('title', NoticeDataGeo_text.ShareDisable + ' (' + cookieValue.NLN + ')')
1097 .addClass('checked');
1101 removeNoticeDataGeo();
1108 * Create or update a geolocation status widget in this notice posting form.
1110 * @param {jQuery} form
1111 * @param {String} status
1112 * @param {String} lat (optional)
1113 * @param {String} lon (optional)
1114 * @param {String} url (optional)
1116 NoticeGeoStatus: function(form, status, lat, lon, url)
1118 var wrapper = form.find('.geo_status_wrapper');
1119 if (wrapper.length == 0) {
1120 wrapper = $('<div class="'+SN.C.S.Success+' geo_status_wrapper"><button class="close" style="float:right">×</button><div class="geo_status"></div></div>');
1121 wrapper.find('button.close').click(function() {
1122 form.find('[name=notice_data-geo]').removeAttr('checked').change();
1125 form.append(wrapper);
1129 label = $('<a></a>').attr('href', url);
1131 label = $('<span></span>');
1135 var latlon = lat + ';' + lon;
1136 label.attr('title', latlon);
1141 wrapper.find('.geo_status').empty().append(label);
1145 * Setup function -- DOES NOT trigger actions immediately.
1147 * Initializes event handlers for the "Send direct message" link on
1148 * profile pages, setting it up to display a dialog box when clicked.
1150 * Unlike the repeat confirmation form, this appears to fetch
1151 * the form _from the original link target_, so the form itself
1152 * doesn't need to be in the current document.
1154 * @fixme breaks ability to open link in new window?
1156 NewDirectMessage: function() {
1157 NDM = $('.entity_send-a-message a');
1158 NDM.attr({'href':NDM.attr('href')+'&ajax=1'});
1159 NDM.bind('click', function() {
1160 var NDMF = $('.entity_send-a-message form');
1161 if (NDMF.length === 0) {
1162 $(this).addClass(SN.C.S.Processing);
1163 $.get(NDM.attr('href'), null, function(data) {
1164 $('.entity_send-a-message').append(document._importNode($('form', data)[0], true));
1165 NDMF = $('.entity_send-a-message .form_notice');
1166 SN.U.FormNoticeXHR(NDMF);
1167 SN.U.FormNoticeEnhancements(NDMF);
1168 NDMF.append('<button class="close">×</button>');
1169 $('.entity_send-a-message button').click(function(){
1173 NDM.removeClass(SN.C.S.Processing);
1178 $('.entity_send-a-message textarea').focus();
1185 * Return a date object with the current local time on the
1186 * given year, month, and day.
1188 * @param {number} year: 4-digit year
1189 * @param {number} month: 0 == January
1190 * @param {number} day: 1 == 1
1193 GetFullYear: function(year, month, day) {
1194 var date = new Date();
1195 date.setFullYear(year, month, day);
1201 * Some sort of object interface for storing some structured
1202 * information in a cookie.
1204 * Appears to be used to save the last-used login nickname?
1205 * That's something that browsers usually take care of for us
1206 * these days, do we really need to do it? Does anything else
1207 * use this interface?
1209 * @fixme what is this?
1210 * @fixme should this use non-cookie local storage when available?
1212 StatusNetInstance: {
1214 * @fixme what is this?
1216 Set: function(value) {
1217 var SNI = SN.U.StatusNetInstance.Get();
1219 value = $.extend(SNI, value);
1223 SN.C.S.StatusNetInstance,
1224 JSON.stringify(value),
1227 expires: SN.U.GetFullYear(2029, 0, 1)
1232 * @fixme what is this?
1235 var cookieValue = $.cookie(SN.C.S.StatusNetInstance);
1236 if (cookieValue !== null) {
1237 return JSON.parse(cookieValue);
1243 * @fixme what is this?
1245 Delete: function() {
1246 $.cookie(SN.C.S.StatusNetInstance, null);
1251 * Check if the current page is a timeline where the current user's
1252 * posts should be displayed immediately on success.
1254 * @fixme this should be done in a saner way, with machine-readable
1255 * info about what page we're looking at.
1257 * @param {DOMElement} notice: HTML chunk with formatted notice
1260 belongsOnTimeline: function(notice) {
1261 var action = $("body").attr('id');
1262 if (action == 'public') {
1266 var profileLink = $('#nav_profile a').attr('href');
1268 var authorUrl = $(notice).find('.vcard.author a.url').attr('href');
1269 if (authorUrl == profileLink) {
1270 if (action == 'all' || action == 'showstream') {
1271 // Posts always show on your own friends and profile streams.
1277 // @fixme tag, group, reply timelines should be feasible as well.
1278 // Mismatch between id-based and name-based user/group links currently complicates
1279 // the lookup, since all our inline mentions contain the absolute links but the
1280 // UI links currently on the page use malleable names.
1286 * Switch to another active input sub-form.
1287 * This will hide the current form (if any), show the new one, and
1288 * update the input type tab selection state.
1290 * @param {String} tag
1292 switchInputFormTab: function(tag) {
1293 // The one that's current isn't current anymore
1294 $('.input_form_nav_tab.current').removeClass('current');
1295 if (tag == 'placeholder') {
1296 // Hack: when showing the placeholder, mark the tab
1297 // as current for 'Status'.
1298 $('#input_form_nav_status').addClass('current');
1300 $('#input_form_nav_'+tag).addClass('current');
1303 $('.input_form.current').removeClass('current');
1304 $('#input_form_'+tag)
1305 .addClass('current')
1306 .find('.ajax-notice').each(function() {
1308 SN.Init.NoticeFormSetup(form);
1310 .find('textarea:first').focus();
1316 * If user is logged in, run setup code for the new notice form:
1321 * - file upload events
1323 NoticeForm: function() {
1324 if ($('body.user_in').length > 0) {
1325 // SN.Init.NoticeFormSetup() will get run
1326 // when forms get displayed for the first time...
1328 // Hack to initialize the placeholder at top
1329 $('#input_form_placeholder input.placeholder').focus(function() {
1330 SN.U.switchInputFormTab("status");
1333 // Make inline reply forms self-close when clicking out.
1334 $('body').bind('click', function(e) {
1335 var currentForm = $('#content .input_forms div.current');
1336 if (currentForm.length > 0) {
1337 if ($('#content .input_forms').has(e.target).length == 0) {
1338 // If all fields are empty, switch back to the placeholder.
1339 var fields = currentForm.find('textarea, input[type=text], input[type=""]');
1340 var anything = false;
1341 fields.each(function() {
1342 anything = anything || $(this).val();
1345 SN.U.switchInputFormTab("placeholder");
1350 var openReplies = $('li.notice-reply');
1351 if (openReplies.length > 0) {
1352 var target = $(e.target);
1353 openReplies.each(function() {
1354 // Did we click outside this one?
1355 var replyItem = $(this);
1356 if (replyItem.has(e.target).length == 0) {
1357 var textarea = replyItem.find('.notice_data-text:first');
1358 var cur = $.trim(textarea.val());
1359 // Only close if there's been no edit.
1360 if (cur == '' || cur == textarea.data('initialText')) {
1361 var parentNotice = replyItem.closest('li.notice');
1363 SN.U.NoticeInlineReplyPlaceholder(parentNotice);
1373 * Encapsulate notice form setup for a single form.
1374 * Plugins can add extra setup by monkeypatching this
1377 * @param {jQuery} form
1379 NoticeFormSetup: function(form) {
1380 if (!form.data('NoticeFormSetup')) {
1381 SN.U.NoticeLocationAttach(form);
1382 SN.U.FormNoticeXHR(form);
1383 SN.U.FormNoticeEnhancements(form);
1384 SN.U.NoticeDataAttach(form);
1385 form.data('NoticeFormSetup', true);
1390 * Run setup code for notice timeline views items:
1392 * - AJAX submission for fave/repeat/reply (if logged in)
1393 * - Attachment link extras ('more' links)
1395 Notices: function() {
1396 if ($('body.user_in').length > 0) {
1397 var masterForm = $('.form_notice:first');
1398 if (masterForm.length > 0) {
1399 SN.C.I.NoticeFormMaster = document._importNode(masterForm[0], true);
1401 SN.U.NoticeRepeat();
1403 SN.U.NoticeInlineReplySetup();
1406 SN.U.NoticeAttachments();
1410 * Run setup code for user & group profile page header area if logged in:
1412 * - AJAX submission for sub/unsub/join/leave/nudge
1413 * - AJAX form popup for direct-message
1415 EntityActions: function() {
1416 if ($('body.user_in').length > 0) {
1417 SN.U.NewDirectMessage();
1422 * Run setup code for login form:
1424 * - loads saved last-used-nickname from cookie
1425 * - sets event handler to save nickname to cookie on submit
1427 * @fixme is this necessary? Browsers do their own form saving these days.
1430 if (SN.U.StatusNetInstance.Get() !== null) {
1431 var nickname = SN.U.StatusNetInstance.Get().Nickname;
1432 if (nickname !== null) {
1433 $('#form_login #nickname').val(nickname);
1437 $('#form_login').bind('submit', function() {
1438 SN.U.StatusNetInstance.Set({Nickname: $('#form_login #nickname').val()});
1444 * Set up any generic 'ajax' form so it submits via AJAX with auto-replacement.
1446 AjaxForms: function() {
1447 $('form.ajax').live('submit', function() {
1448 SN.U.FormXHR($(this));
1454 * Add logic to any file upload forms to handle file size limits,
1455 * on browsers that support basic FileAPI.
1457 UploadForms: function () {
1458 $('input[type=file]').change(function(event) {
1459 if (typeof this.files == "object" && this.files.length > 0) {
1461 for (var i = 0; i < this.files.length; i++) {
1462 size += this.files[i].size;
1465 var max = SN.U.maxFileSize($(this.form));
1466 if (max > 0 && size > max) {
1467 var msg = 'File too large: maximum upload size is %d bytes.';
1468 alert(msg.replace('%d', max));
1472 event.preventDefault();
1482 * Run initialization functions on DOM-ready.
1484 * Note that if we're waiting on other scripts to load, this won't happen
1485 * until that's done. To load scripts asynchronously without delaying setup,
1486 * don't start them loading until after DOM-ready time!
1488 $(document).ready(function(){
1489 SN.Init.AjaxForms();
1490 SN.Init.UploadForms();
1491 if ($('.'+SN.C.S.FormNotice).length > 0) {
1492 SN.Init.NoticeForm();
1494 if ($('#content .notices').length > 0) {
1497 if ($('#content .entity_actions').length > 0) {
1498 SN.Init.EntityActions();
1500 if ($('#form_login').length > 0) {