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 alert(errorThrown || textStatus);
258 success: function(data, textStatus) {
259 if (typeof($('form', data)[0]) != 'undefined') {
260 form_new = document._importNode($('form', data)[0], true);
261 form.replaceWith(form_new);
264 form.replaceWith(document._importNode($('p', data)[0], true));
271 * Setup function -- DOES NOT trigger actions immediately.
273 * Sets up event handlers for special-cased async submission of the
274 * notice-posting form, including some pre-post validation.
276 * Unlike FormXHR() this does NOT submit the form immediately!
277 * It sets up event handlers so that any method of submitting the
278 * form (click on submit button, enter, submit() etc) will trigger
281 * Also unlike FormXHR(), this system will use a hidden iframe
282 * automatically to handle file uploads via <input type="file">
286 * @fixme vast swaths of duplicate code and really long variable names clutter this function up real bad
287 * @fixme error handling is unreliable
288 * @fixme cookieValue is a global variable, but probably shouldn't be
289 * @fixme saving the location cache cookies should be split out
290 * @fixme some error messages are hardcoded english: needs i18n
291 * @fixme special-case for bookmarklet is confusing and uses a global var "self". Is this ok?
293 * @param {jQuery} form: jQuery object whose first element is a form
297 FormNoticeXHR: function(form) {
298 SN.C.I.NoticeDataGeo = {};
299 form.append('<input type="hidden" name="ajax" value="1"/>');
301 // Make sure we don't have a mixed HTTP/HTTPS submission...
302 form.attr('action', SN.U.RewriteAjaxAction(form.attr('action')));
305 * Show a response feedback bit under the new-notice dialog.
307 * @param {String} cls: CSS class name to use ('error' or 'success')
308 * @param {String} text
311 var showFeedback = function(cls, text) {
313 $('<p class="form_response"></p>')
320 * Hide the previous response feedback, if any.
322 var removeFeedback = function() {
323 form.find('.form_response').remove();
329 beforeSend: function(formData) {
330 if (form.find('.notice_data-text:first').val() == '') {
331 form.addClass(SN.C.S.Warning);
335 .addClass(SN.C.S.Processing)
337 .addClass(SN.C.S.Disabled)
338 .attr(SN.C.S.Disabled, SN.C.S.Disabled);
340 SN.U.normalizeGeoData(form);
344 error: function (xhr, textStatus, errorThrown) {
346 .removeClass(SN.C.S.Processing)
348 .removeClass(SN.C.S.Disabled)
349 .removeAttr(SN.C.S.Disabled, SN.C.S.Disabled);
351 if (textStatus == 'timeout') {
353 showFeedback('error', 'Sorry! We had trouble sending your notice. The servers are overloaded. Please try again, and contact the site administrator if this problem persists.');
356 var response = SN.U.GetResponseXML(xhr);
357 if ($('.'+SN.C.S.Error, response).length > 0) {
358 form.append(document._importNode($('.'+SN.C.S.Error, response)[0], true));
361 if (parseInt(xhr.status) === 0 || jQuery.inArray(parseInt(xhr.status), SN.C.I.HTTP20x30x) >= 0) {
364 .find('.attach-status').remove();
365 SN.U.FormNoticeEnhancements(form);
369 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.');
374 success: function(data, textStatus) {
376 var errorResult = $('#'+SN.C.S.Error, data);
377 if (errorResult.length > 0) {
378 showFeedback('error', errorResult.text());
381 if($('body')[0].id == 'bookmarklet') {
382 // @fixme self is not referenced anywhere?
386 var commandResult = $('#'+SN.C.S.CommandResult, data);
387 if (commandResult.length > 0) {
388 showFeedback('success', commandResult.text());
391 // New notice post was successful. If on our timeline, show it!
392 var notice = document._importNode($('li', data)[0], true);
393 var notices = $('#notices_primary .notices:first');
394 var replyItem = form.closest('li.notice-reply');
396 if (replyItem.length > 0) {
397 // If this is an inline reply, insert it in place.
398 var id = $(notice).attr('id');
399 if ($("#"+id).length == 0) {
400 var parentNotice = replyItem.closest('li.notice');
401 replyItem.replaceWith(notice);
402 SN.U.NoticeInlineReplyPlaceholder(parentNotice);
404 // Realtime came through before us...
407 } else if (notices.length > 0 && SN.U.belongsOnTimeline(notice)) {
408 // Not a reply. If on our timeline, show it at the top!
410 if ($('#'+notice.id).length === 0) {
411 var notice_irt_value = form.find('[name=inreplyto]').val();
412 var notice_irt = '#notices_primary #notice-'+notice_irt_value;
413 if($('body')[0].id == 'conversation') {
414 if(notice_irt_value.length > 0 && $(notice_irt+' .notices').length < 1) {
415 $(notice_irt).append('<ul class="notices"></ul>');
417 $($(notice_irt+' .notices')[0]).append(notice);
420 notices.prepend(notice);
423 .css({display:'none'})
425 SN.U.NoticeWithAttachment($('#'+notice.id));
426 SN.U.NoticeReplyTo($('#'+notice.id));
427 SN.U.switchInputFormTab("placeholder");
430 // Not on a timeline that this belongs on?
431 // Just show a success message.
433 showFeedback('success', $('title', data).text());
437 form.find('[name=inreplyto]').val('');
438 form.find('.attach-status').remove();
439 SN.U.FormNoticeEnhancements(form);
442 complete: function(xhr, textStatus) {
444 .removeClass(SN.C.S.Processing)
446 .removeAttr(SN.C.S.Disabled)
447 .removeClass(SN.C.S.Disabled);
449 form.find('[name=lat]').val(SN.C.I.NoticeDataGeo.NLat);
450 form.find('[name=lon]').val(SN.C.I.NoticeDataGeo.NLon);
451 form.find('[name=location_ns]').val(SN.C.I.NoticeDataGeo.NLNS);
452 form.find('[name=location_id]').val(SN.C.I.NoticeDataGeo.NLID);
453 form.find('[name=notice_data-geo]').attr('checked', SN.C.I.NoticeDataGeo.NDG);
458 normalizeGeoData: function(form) {
459 SN.C.I.NoticeDataGeo.NLat = form.find('[name=lat]').val();
460 SN.C.I.NoticeDataGeo.NLon = form.find('[name=lon]').val();
461 SN.C.I.NoticeDataGeo.NLNS = form.find('[name=location_ns]').val();
462 SN.C.I.NoticeDataGeo.NLID = form.find('[name=location_id]').val();
463 SN.C.I.NoticeDataGeo.NDG = form.find('[name=notice_data-geo]').attr('checked'); // @fixme
465 var cookieValue = $.cookie(SN.C.S.NoticeDataGeoCookie);
467 if (cookieValue !== null && cookieValue != 'disabled') {
468 cookieValue = JSON.parse(cookieValue);
469 SN.C.I.NoticeDataGeo.NLat = form.find('[name=lat]').val(cookieValue.NLat).val();
470 SN.C.I.NoticeDataGeo.NLon = form.find('[name=lon]').val(cookieValue.NLon).val();
471 if (cookieValue.NLNS) {
472 SN.C.I.NoticeDataGeo.NLNS = form.find('[name=location_ns]').val(cookieValue.NLNS).val();
473 SN.C.I.NoticeDataGeo.NLID = form.find('[name=location_id]').val(cookieValue.NLID).val();
475 form.find('[name=location_ns]').val('');
476 form.find('[name=location_id]').val('');
479 if (cookieValue == 'disabled') {
480 SN.C.I.NoticeDataGeo.NDG = form.find('[name=notice_data-geo]').attr('checked', false).attr('checked');
483 SN.C.I.NoticeDataGeo.NDG = form.find('[name=notice_data-geo]').attr('checked', true).attr('checked');
488 * Fetch an XML DOM from an XHR's response data.
490 * Works around unavailable responseXML when document.domain
491 * has been modified by Meteor or other tools, in some but not
494 * @param {XMLHTTPRequest} xhr
495 * @return DOMDocument
497 GetResponseXML: function(xhr) {
499 return xhr.responseXML;
501 return (new DOMParser()).parseFromString(xhr.responseText, "text/xml");
506 * Setup function -- DOES NOT trigger actions immediately.
508 * Sets up event handlers on all visible notice's reply buttons to
509 * tweak the new-notice form with needed variables and focus it
512 * (This replaces the default reply button behavior to submit
513 * directly to a form which comes back with a specialized page
514 * with the form data prefilled.)
518 NoticeReply: function() {
519 if ($('#content .notice_reply').length > 0) {
520 $('#content .notice').each(function() { SN.U.NoticeReplyTo($(this)); });
525 * Setup function -- DOES NOT trigger actions immediately.
527 * Sets up event handlers on the given notice's reply button to
528 * tweak the new-notice form with needed variables and focus it
531 * (This replaces the default reply button behavior to submit
532 * directly to a form which comes back with a specialized page
533 * with the form data prefilled.)
535 * @param {jQuery} notice: jQuery object containing one or more notices
538 NoticeReplyTo: function(notice) {
539 notice.find('.notice_reply').live('click', function(e) {
541 var nickname = ($('.author .nickname', notice).length > 0) ? $($('.author .nickname', notice)[0]) : $('.author .nickname.uid');
542 SN.U.NoticeInlineReplyTrigger(notice, '@' + nickname.text());
548 * Open up a notice's inline reply box.
550 * @param {jQuery} notice: jQuery object containing one notice
551 * @param {String} initialText
553 NoticeInlineReplyTrigger: function(notice, initialText) {
554 // Find the notice we're replying to...
555 var id = $($('.notice_id', notice)[0]).text();
556 var parentNotice = notice;
558 // Find the threaded replies view we'll be adding to...
559 var list = notice.closest('.notices');
560 if (list.hasClass('threaded-replies')) {
561 // We're replying to a reply; use reply form on the end of this list.
562 // We'll add our form at the end of this; grab the root notice.
563 parentNotice = list.closest('.notice');
565 // We're replying to a parent notice; pull its threaded list
566 // and we'll add on the end of it. Will add if needed.
567 list = $('ul.threaded-replies', notice);
568 if (list.length == 0) {
569 list = $('<ul class="notices threaded-replies xoxo"></ul>');
574 // See if the form's already open...
575 var replyForm = $('.notice-reply-form', list);
577 var nextStep = function() {
579 replyForm.find('input[name=inreplyto]').val(id);
582 var text = replyForm.find('textarea');
583 if (text.length == 0) {
588 replyto = initialText + ' ';
590 text.val(replyto + text.val().replace(RegExp(replyto, 'i'), ''));
591 text.data('initialText', $.trim(initialText + ''));
593 if (text[0].setSelectionRange) {
594 var len = text.val().length;
595 text[0].setSelectionRange(len,len);
598 if (replyForm.length > 0) {
599 // Update the existing form...
602 // Remove placeholder if any
603 list.find('li.notice-reply-placeholder').remove();
605 // Create the reply form entry at the end
606 var replyItem = $('li.notice-reply', list);
607 if (replyItem.length == 0) {
608 replyItem = $('<li class="notice-reply"></li>');
610 var intermediateStep = function(formMaster) {
611 var formEl = document._importNode(formMaster, true);
612 replyItem.append(formEl);
613 list.append(replyItem);
615 var form = replyForm = $(formEl);
616 SN.Init.NoticeFormSetup(form);
620 if (SN.C.I.NoticeFormMaster) {
621 // We've already saved a master copy of the form.
623 intermediateStep(SN.C.I.NoticeFormMaster);
625 // Fetch a fresh copy of the notice form over AJAX.
626 // Warning: this can have a delay, which looks bad.
627 // @fixme this fallback may or may not work
628 var url = $('#form_notice').attr('action');
629 $.get(url, {ajax: 1}, function(data, textStatus, xhr) {
630 intermediateStep($('form', data)[0]);
637 NoticeInlineReplyPlaceholder: function(notice) {
638 var list = notice.find('ul.threaded-replies');
639 var placeholder = $('<li class="notice-reply-placeholder">' +
640 '<input class="placeholder">' +
642 placeholder.find('input')
643 .val(SN.msg('reply_placeholder'))
645 SN.U.NoticeInlineReplyTrigger(notice);
648 list.append(placeholder);
652 * Setup function -- DOES NOT apply immediately.
654 * Sets up event handlers for favor/disfavor forms to submit via XHR.
655 * Uses 'live' rather than 'bind', so applies to future as well as present items.
657 NoticeInlineReplySetup: function() {
658 $('.threaded-replies').each(function() {
660 var notice = list.closest('.notice');
661 SN.U.NoticeInlineReplyPlaceholder(notice);
666 * Setup function -- DOES NOT trigger actions immediately.
668 * Sets up event handlers for repeat forms to toss up a confirmation
669 * popout before submitting.
671 * Uses 'live' rather than 'bind', so applies to future as well as present items.
673 NoticeRepeat: function() {
674 $('.form_repeat').live('click', function(e) {
677 SN.U.NoticeRepeatConfirmation($(this));
683 * Shows a confirmation dialog box variant of the repeat button form.
684 * This seems to use a technique where the repeat form contains
685 * _both_ a standalone button _and_ text and buttons for a dialog.
686 * The dialog will close after its copy of the form is submitted,
687 * or if you click its 'close' button.
689 * The dialog is created by duplicating the original form and changing
690 * its style; while clever, this is hard to generalize and probably
691 * duplicates a lot of unnecessary HTML output.
693 * @fixme create confirmation dialogs through a generalized interface
694 * that can be reused instead of hardcoded text and styles.
696 * @param {jQuery} form
698 NoticeRepeatConfirmation: function(form) {
699 var submit_i = form.find('.submit');
701 var submit = submit_i.clone();
703 .addClass('submit_dialogbox')
704 .removeClass('submit');
706 submit.bind('click', function() { SN.U.FormXHR(form); return false; });
711 .addClass('dialogbox')
712 .append('<button class="close">×</button>')
713 .closest('.notice-options')
716 form.find('button.close').click(function(){
720 .removeClass('dialogbox')
721 .closest('.notice-options')
722 .removeClass('opaque');
724 form.find('.submit_dialogbox').remove();
725 form.find('.submit').show();
732 * Setup function -- DOES NOT trigger actions immediately.
734 * Goes through all notices currently displayed and sets up attachment
735 * handling if needed.
737 NoticeAttachments: function() {
738 $('.notice a.attachment').each(function() {
739 SN.U.NoticeWithAttachment($(this).closest('.notice'));
744 * Setup function -- DOES NOT trigger actions immediately.
746 * Sets up special attachment link handling if needed. Currently this
747 * consists only of making the "more" button used for OStatus message
748 * cropping turn into an auto-expansion button that loads the full
749 * text from an attachment file.
751 * @param {jQuery} notice
753 NoticeWithAttachment: function(notice) {
754 if (notice.find('.attachment').length === 0) {
758 var attachment_more = notice.find('.attachment.more');
759 if (attachment_more.length > 0) {
760 $(attachment_more[0]).click(function() {
762 m.addClass(SN.C.S.Processing);
763 $.get(m.attr('href')+'/ajax', null, function(data) {
764 m.parent('.entry-content').html($(data).find('#attachment_view .entry-content').html());
768 }).attr('title', SN.msg('showmore_tooltip'));
773 * Setup function -- DOES NOT trigger actions immediately.
775 * Sets up event handlers for the file-attachment widget in the
776 * new notice form. When a file is selected, a box will be added
777 * below the text input showing the filename and, if supported
778 * by the browser, a thumbnail preview.
780 * This preview box will also allow removing the attachment
783 * @param {jQuery} form
785 NoticeDataAttach: function(form) {
786 var NDA = form.find('input[type=file]');
787 NDA.change(function(event) {
788 form.find('.attach-status').remove();
790 var filename = $(this).val();
792 // No file -- we've been tricked!
796 var attachStatus = $('<div class="attach-status '+SN.C.S.Success+'"><code></code> <button class="close">×</button></div>');
797 attachStatus.find('code').text(filename);
798 attachStatus.find('button').click(function(){
799 attachStatus.remove();
804 form.append(attachStatus);
806 if (typeof this.files == "object") {
807 // Some newer browsers will let us fetch the files for preview.
808 for (var i = 0; i < this.files.length; i++) {
809 SN.U.PreviewAttach(form, this.files[i]);
816 * Get PHP's MAX_FILE_SIZE setting for this form;
817 * used to apply client-side file size limit checks.
819 * @param {jQuery} form
820 * @return int max size in bytes; 0 or negative means no limit
822 maxFileSize: function(form) {
823 var max = $(form).find('input[name=MAX_FILE_SIZE]').attr('value');
825 return parseInt(max);
832 * For browsers with FileAPI support: make a thumbnail if possible,
833 * and append it into the attachment display widget.
836 * - Firefox 3.6.6, 4.0b7
837 * - Chrome 8.0.552.210
839 * Known ok metadata, can't get contents:
843 * - Opera 10.63, 11 beta (no input.files interface)
845 * @param {jQuery} form
848 * @todo use configured thumbnail size
849 * @todo detect pixel size?
850 * @todo should we render a thumbnail to a canvas and then use the smaller image?
852 PreviewAttach: function(form, file) {
853 var tooltip = file.type + ' ' + Math.round(file.size / 1024) + 'KB';
857 if (typeof window.createObjectURL != "undefined") {
859 * createObjectURL lets us reference the file directly from an <img>
860 * This produces a compact URL with an opaque reference to the file,
861 * which we can reference immediately.
863 * - Firefox 3.6.6: no
864 * - Firefox 4.0b7: no
866 * - Chrome 8.0.552.210: works!
868 blobAsDataURL = function(blob, callback) {
869 callback(window.createObjectURL(blob));
871 } else if (typeof window.FileReader != "undefined") {
873 * FileAPI's FileReader can build a data URL from a blob's contents,
874 * but it must read the file and build it asynchronously. This means
875 * we'll be passing a giant data URL around, which may be inefficient.
877 * - Firefox 3.6.6: works!
878 * - Firefox 4.0b7: works!
880 * - Chrome 8.0.552.210: works!
882 blobAsDataURL = function(blob, callback) {
883 var reader = new FileReader();
884 reader.onload = function(event) {
885 callback(reader.result);
887 reader.readAsDataURL(blob);
893 var imageTypes = ['image/png', 'image/jpeg', 'image/gif', 'image/svg+xml'];
894 if ($.inArray(file.type, imageTypes) == -1) {
895 // We probably don't know how to show the file.
899 var maxSize = 8 * 1024 * 1024;
900 if (file.size > maxSize) {
901 // Don't kill the browser trying to load some giant image.
906 blobAsDataURL(file, function(url) {
908 .attr('title', tooltip)
909 .attr('alt', tooltip)
911 .attr('style', 'height: 120px');
912 form.find('.attach-status').append(img);
915 var img = $('<div></div>').text(tooltip);
916 form.find('.attach-status').append(img);
921 * Setup function -- DOES NOT trigger actions immediately.
923 * Initializes state for the location-lookup features in the
924 * new-notice form. Seems to set up some event handlers for
925 * triggering lookups and using the new values.
927 * @param {jQuery} form
930 * @fixme there's not good visual state update here, so users have a
931 * hard time figuring out if it's working or fixing if it's wrong.
934 NoticeLocationAttach: function(form) {
935 // @fixme this should not be tied to the main notice form, as there may be multiple notice forms...
936 var NLat = form.find('[name=lat]')
937 var NLon = form.find('[name=lon]')
938 var NLNS = form.find('[name=location_ns]').val();
939 var NLID = form.find('[name=location_id]').val();
940 var NLN = ''; // @fixme
941 var NDGe = form.find('[name=notice_data-geo]');
942 var check = form.find('[name=notice_data-geo]');
943 var label = form.find('label.notice_data-geo');
945 function removeNoticeDataGeo(error) {
947 .attr('title', jQuery.trim(label.text()))
948 .removeClass('checked');
950 form.find('[name=lat]').val('');
951 form.find('[name=lon]').val('');
952 form.find('[name=location_ns]').val('');
953 form.find('[name=location_id]').val('');
954 form.find('[name=notice_data-geo]').attr('checked', false);
956 $.cookie(SN.C.S.NoticeDataGeoCookie, 'disabled', { path: '/' });
959 form.find('.geo_status_wrapper').removeClass('success').addClass('error');
960 form.find('.geo_status_wrapper .geo_status').text(error);
962 form.find('.geo_status_wrapper').remove();
966 function getJSONgeocodeURL(geocodeURL, data) {
967 SN.U.NoticeGeoStatus(form, 'Looking up place name...');
968 $.getJSON(geocodeURL, data, function(location) {
971 if (typeof(location.location_ns) != 'undefined') {
972 form.find('[name=location_ns]').val(location.location_ns);
973 lns = location.location_ns;
976 if (typeof(location.location_id) != 'undefined') {
977 form.find('[name=location_id]').val(location.location_id);
978 lid = location.location_id;
981 if (typeof(location.name) == 'undefined') {
982 NLN_text = data.lat + ';' + data.lon;
985 NLN_text = location.name;
988 SN.U.NoticeGeoStatus(form, NLN_text, data.lat, data.lon, location.url);
990 .attr('title', NoticeDataGeo_text.ShareDisable + ' (' + NLN_text + ')');
992 form.find('[name=lat]').val(data.lat);
993 form.find('[name=lon]').val(data.lon);
994 form.find('[name=location_ns]').val(lns);
995 form.find('[name=location_id]').val(lid);
996 form.find('[name=notice_data-geo]').attr('checked', true);
1008 $.cookie(SN.C.S.NoticeDataGeoCookie, JSON.stringify(cookieValue), { path: '/' });
1012 if (check.length > 0) {
1013 if ($.cookie(SN.C.S.NoticeDataGeoCookie) == 'disabled') {
1014 check.attr('checked', false);
1017 check.attr('checked', true);
1020 var NGW = form.find('.notice_data-geo_wrap');
1021 var geocodeURL = NGW.attr('data-api');
1024 .attr('title', label.text());
1026 check.change(function() {
1027 if (check.attr('checked') === true || $.cookie(SN.C.S.NoticeDataGeoCookie) === null) {
1029 .attr('title', NoticeDataGeo_text.ShareDisable)
1030 .addClass('checked');
1032 if ($.cookie(SN.C.S.NoticeDataGeoCookie) === null || $.cookie(SN.C.S.NoticeDataGeoCookie) == 'disabled') {
1033 if (navigator.geolocation) {
1034 SN.U.NoticeGeoStatus(form, 'Requesting location from browser...');
1035 navigator.geolocation.getCurrentPosition(
1036 function(position) {
1037 form.find('[name=lat]').val(position.coords.latitude);
1038 form.find('[name=lon]').val(position.coords.longitude);
1041 lat: position.coords.latitude,
1042 lon: position.coords.longitude,
1043 token: $('#token').val()
1046 getJSONgeocodeURL(geocodeURL, data);
1050 switch(error.code) {
1051 case error.PERMISSION_DENIED:
1052 removeNoticeDataGeo('Location permission denied.');
1055 //$('#'+SN.C.S.NoticeDataGeo).attr('checked', false);
1056 removeNoticeDataGeo('Location lookup timeout.');
1067 if (NLat.length > 0 && NLon.length > 0) {
1071 token: $('#token').val()
1074 getJSONgeocodeURL(geocodeURL, data);
1077 removeNoticeDataGeo();
1084 var cookieValue = JSON.parse($.cookie(SN.C.S.NoticeDataGeoCookie));
1086 form.find('[name=lat]').val(cookieValue.NLat);
1087 form.find('[name=lon]').val(cookieValue.NLon);
1088 form.find('[name=location_ns]').val(cookieValue.NLNS);
1089 form.find('[name=location_id]').val(cookieValue.NLID);
1090 form.find('[name=notice_data-geo]').attr('checked', cookieValue.NDG);
1092 SN.U.NoticeGeoStatus(form, cookieValue.NLN, cookieValue.NLat, cookieValue.NLon, cookieValue.NLNU);
1094 .attr('title', NoticeDataGeo_text.ShareDisable + ' (' + cookieValue.NLN + ')')
1095 .addClass('checked');
1099 removeNoticeDataGeo();
1106 * Create or update a geolocation status widget in this notice posting form.
1108 * @param {jQuery} form
1109 * @param {String} status
1110 * @param {String} lat (optional)
1111 * @param {String} lon (optional)
1112 * @param {String} url (optional)
1114 NoticeGeoStatus: function(form, status, lat, lon, url)
1116 var wrapper = form.find('.geo_status_wrapper');
1117 if (wrapper.length == 0) {
1118 wrapper = $('<div class="'+SN.C.S.Success+' geo_status_wrapper"><button class="close" style="float:right">×</button><div class="geo_status"></div></div>');
1119 wrapper.find('button.close').click(function() {
1120 form.find('[name=notice_data-geo]').removeAttr('checked').change();
1123 form.append(wrapper);
1127 label = $('<a></a>').attr('href', url);
1129 label = $('<span></span>');
1133 var latlon = lat + ';' + lon;
1134 label.attr('title', latlon);
1139 wrapper.find('.geo_status').empty().append(label);
1143 * Setup function -- DOES NOT trigger actions immediately.
1145 * Initializes event handlers for the "Send direct message" link on
1146 * profile pages, setting it up to display a dialog box when clicked.
1148 * Unlike the repeat confirmation form, this appears to fetch
1149 * the form _from the original link target_, so the form itself
1150 * doesn't need to be in the current document.
1152 * @fixme breaks ability to open link in new window?
1154 NewDirectMessage: function() {
1155 NDM = $('.entity_send-a-message a');
1156 NDM.attr({'href':NDM.attr('href')+'&ajax=1'});
1157 NDM.bind('click', function() {
1158 var NDMF = $('.entity_send-a-message form');
1159 if (NDMF.length === 0) {
1160 $(this).addClass(SN.C.S.Processing);
1161 $.get(NDM.attr('href'), null, function(data) {
1162 $('.entity_send-a-message').append(document._importNode($('form', data)[0], true));
1163 NDMF = $('.entity_send-a-message .form_notice');
1164 SN.U.FormNoticeXHR(NDMF);
1165 SN.U.FormNoticeEnhancements(NDMF);
1166 NDMF.append('<button class="close">×</button>');
1167 $('.entity_send-a-message button').click(function(){
1171 NDM.removeClass(SN.C.S.Processing);
1176 $('.entity_send-a-message textarea').focus();
1183 * Return a date object with the current local time on the
1184 * given year, month, and day.
1186 * @param {number} year: 4-digit year
1187 * @param {number} month: 0 == January
1188 * @param {number} day: 1 == 1
1191 GetFullYear: function(year, month, day) {
1192 var date = new Date();
1193 date.setFullYear(year, month, day);
1199 * Some sort of object interface for storing some structured
1200 * information in a cookie.
1202 * Appears to be used to save the last-used login nickname?
1203 * That's something that browsers usually take care of for us
1204 * these days, do we really need to do it? Does anything else
1205 * use this interface?
1207 * @fixme what is this?
1208 * @fixme should this use non-cookie local storage when available?
1210 StatusNetInstance: {
1212 * @fixme what is this?
1214 Set: function(value) {
1215 var SNI = SN.U.StatusNetInstance.Get();
1217 value = $.extend(SNI, value);
1221 SN.C.S.StatusNetInstance,
1222 JSON.stringify(value),
1225 expires: SN.U.GetFullYear(2029, 0, 1)
1230 * @fixme what is this?
1233 var cookieValue = $.cookie(SN.C.S.StatusNetInstance);
1234 if (cookieValue !== null) {
1235 return JSON.parse(cookieValue);
1241 * @fixme what is this?
1243 Delete: function() {
1244 $.cookie(SN.C.S.StatusNetInstance, null);
1249 * Check if the current page is a timeline where the current user's
1250 * posts should be displayed immediately on success.
1252 * @fixme this should be done in a saner way, with machine-readable
1253 * info about what page we're looking at.
1255 * @param {DOMElement} notice: HTML chunk with formatted notice
1258 belongsOnTimeline: function(notice) {
1259 var action = $("body").attr('id');
1260 if (action == 'public') {
1264 var profileLink = $('#nav_profile a').attr('href');
1266 var authorUrl = $(notice).find('.vcard.author a.url').attr('href');
1267 if (authorUrl == profileLink) {
1268 if (action == 'all' || action == 'showstream') {
1269 // Posts always show on your own friends and profile streams.
1275 // @fixme tag, group, reply timelines should be feasible as well.
1276 // Mismatch between id-based and name-based user/group links currently complicates
1277 // the lookup, since all our inline mentions contain the absolute links but the
1278 // UI links currently on the page use malleable names.
1284 * Switch to another active input sub-form.
1285 * This will hide the current form (if any), show the new one, and
1286 * update the input type tab selection state.
1288 * @param {String} tag
1290 switchInputFormTab: function(tag) {
1291 // The one that's current isn't current anymore
1292 $('.input_form_nav_tab.current').removeClass('current');
1293 if (tag == 'placeholder') {
1294 // Hack: when showing the placeholder, mark the tab
1295 // as current for 'Status'.
1296 $('#input_form_nav_status').addClass('current');
1298 $('#input_form_nav_'+tag).addClass('current');
1301 $('.input_form.current').removeClass('current');
1302 $('#input_form_'+tag)
1303 .addClass('current')
1304 .find('.ajax-notice').each(function() {
1306 SN.Init.NoticeFormSetup(form);
1308 .find('textarea:first').focus();
1314 * If user is logged in, run setup code for the new notice form:
1319 * - file upload events
1321 NoticeForm: function() {
1322 if ($('body.user_in').length > 0) {
1323 // SN.Init.NoticeFormSetup() will get run
1324 // when forms get displayed for the first time...
1326 // Hack to initialize the placeholder at top
1327 $('#input_form_placeholder input.placeholder').focus(function() {
1328 SN.U.switchInputFormTab("status");
1331 // Make inline reply forms self-close when clicking out.
1332 $('body').bind('click', function(e) {
1333 var currentForm = $('#content .input_forms div.current');
1334 if (currentForm.length > 0) {
1335 if ($('#content .input_forms').has(e.target).length == 0) {
1336 // If all fields are empty, switch back to the placeholder.
1337 var fields = currentForm.find('textarea, input[type=text], input[type=""]');
1338 var anything = false;
1339 fields.each(function() {
1340 anything = anything || $(this).val();
1343 SN.U.switchInputFormTab("placeholder");
1348 var openReplies = $('li.notice-reply');
1349 if (openReplies.length > 0) {
1350 var target = $(e.target);
1351 openReplies.each(function() {
1352 // Did we click outside this one?
1353 var replyItem = $(this);
1354 if (replyItem.has(e.target).length == 0) {
1355 var textarea = replyItem.find('.notice_data-text:first');
1356 var cur = $.trim(textarea.val());
1357 // Only close if there's been no edit.
1358 if (cur == '' || cur == textarea.data('initialText')) {
1359 var parentNotice = replyItem.closest('li.notice');
1361 SN.U.NoticeInlineReplyPlaceholder(parentNotice);
1371 * Encapsulate notice form setup for a single form.
1372 * Plugins can add extra setup by monkeypatching this
1375 * @param {jQuery} form
1377 NoticeFormSetup: function(form) {
1378 if (!form.data('NoticeFormSetup')) {
1379 SN.U.NoticeLocationAttach(form);
1380 SN.U.FormNoticeXHR(form);
1381 SN.U.FormNoticeEnhancements(form);
1382 SN.U.NoticeDataAttach(form);
1383 form.data('NoticeFormSetup', true);
1388 * Run setup code for notice timeline views items:
1390 * - AJAX submission for fave/repeat/reply (if logged in)
1391 * - Attachment link extras ('more' links)
1393 Notices: function() {
1394 if ($('body.user_in').length > 0) {
1395 var masterForm = $('.form_notice:first');
1396 if (masterForm.length > 0) {
1397 SN.C.I.NoticeFormMaster = document._importNode(masterForm[0], true);
1399 SN.U.NoticeRepeat();
1401 SN.U.NoticeInlineReplySetup();
1404 SN.U.NoticeAttachments();
1408 * Run setup code for user & group profile page header area if logged in:
1410 * - AJAX submission for sub/unsub/join/leave/nudge
1411 * - AJAX form popup for direct-message
1413 EntityActions: function() {
1414 if ($('body.user_in').length > 0) {
1415 SN.U.NewDirectMessage();
1420 * Run setup code for login form:
1422 * - loads saved last-used-nickname from cookie
1423 * - sets event handler to save nickname to cookie on submit
1425 * @fixme is this necessary? Browsers do their own form saving these days.
1428 if (SN.U.StatusNetInstance.Get() !== null) {
1429 var nickname = SN.U.StatusNetInstance.Get().Nickname;
1430 if (nickname !== null) {
1431 $('#form_login #nickname').val(nickname);
1435 $('#form_login').bind('submit', function() {
1436 SN.U.StatusNetInstance.Set({Nickname: $('#form_login #nickname').val()});
1442 * Set up any generic 'ajax' form so it submits via AJAX with auto-replacement.
1444 AjaxForms: function() {
1445 $('form.ajax').live('submit', function() {
1446 SN.U.FormXHR($(this));
1452 * Add logic to any file upload forms to handle file size limits,
1453 * on browsers that support basic FileAPI.
1455 UploadForms: function () {
1456 $('input[type=file]').change(function(event) {
1457 if (typeof this.files == "object" && this.files.length > 0) {
1459 for (var i = 0; i < this.files.length; i++) {
1460 size += this.files[i].size;
1463 var max = SN.U.maxFileSize($(this.form));
1464 if (max > 0 && size > max) {
1465 var msg = 'File too large: maximum upload size is %d bytes.';
1466 alert(msg.replace('%d', max));
1470 event.preventDefault();
1480 * Run initialization functions on DOM-ready.
1482 * Note that if we're waiting on other scripts to load, this won't happen
1483 * until that's done. To load scripts asynchronously without delaying setup,
1484 * don't start them loading until after DOM-ready time!
1486 $(document).ready(function(){
1487 SN.Init.AjaxForms();
1488 SN.Init.UploadForms();
1489 if ($('.'+SN.C.S.FormNotice).length > 0) {
1490 SN.Init.NoticeForm();
1492 if ($('#content .notices').length > 0) {
1495 if ($('#content .entity_actions').length > 0) {
1496 SN.Init.EntityActions();
1498 if ($('#form_login').length > 0) {