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.switchInputFormTab("placeholder");
429 // Not on a timeline that this belongs on?
430 // Just show a success message.
432 showFeedback('success', $('title', data).text());
436 form.find('[name=inreplyto]').val('');
437 form.find('.attach-status').remove();
438 SN.U.FormNoticeEnhancements(form);
441 complete: function(xhr, textStatus) {
443 .removeClass(SN.C.S.Processing)
445 .removeAttr(SN.C.S.Disabled)
446 .removeClass(SN.C.S.Disabled);
448 form.find('[name=lat]').val(SN.C.I.NoticeDataGeo.NLat);
449 form.find('[name=lon]').val(SN.C.I.NoticeDataGeo.NLon);
450 form.find('[name=location_ns]').val(SN.C.I.NoticeDataGeo.NLNS);
451 form.find('[name=location_id]').val(SN.C.I.NoticeDataGeo.NLID);
452 form.find('[name=notice_data-geo]').attr('checked', SN.C.I.NoticeDataGeo.NDG);
457 normalizeGeoData: function(form) {
458 SN.C.I.NoticeDataGeo.NLat = form.find('[name=lat]').val();
459 SN.C.I.NoticeDataGeo.NLon = form.find('[name=lon]').val();
460 SN.C.I.NoticeDataGeo.NLNS = form.find('[name=location_ns]').val();
461 SN.C.I.NoticeDataGeo.NLID = form.find('[name=location_id]').val();
462 SN.C.I.NoticeDataGeo.NDG = form.find('[name=notice_data-geo]').attr('checked'); // @fixme
464 var cookieValue = $.cookie(SN.C.S.NoticeDataGeoCookie);
466 if (cookieValue !== null && cookieValue != 'disabled') {
467 cookieValue = JSON.parse(cookieValue);
468 SN.C.I.NoticeDataGeo.NLat = form.find('[name=lat]').val(cookieValue.NLat).val();
469 SN.C.I.NoticeDataGeo.NLon = form.find('[name=lon]').val(cookieValue.NLon).val();
470 if (cookieValue.NLNS) {
471 SN.C.I.NoticeDataGeo.NLNS = form.find('[name=location_ns]').val(cookieValue.NLNS).val();
472 SN.C.I.NoticeDataGeo.NLID = form.find('[name=location_id]').val(cookieValue.NLID).val();
474 form.find('[name=location_ns]').val('');
475 form.find('[name=location_id]').val('');
478 if (cookieValue == 'disabled') {
479 SN.C.I.NoticeDataGeo.NDG = form.find('[name=notice_data-geo]').attr('checked', false).attr('checked');
482 SN.C.I.NoticeDataGeo.NDG = form.find('[name=notice_data-geo]').attr('checked', true).attr('checked');
487 * Fetch an XML DOM from an XHR's response data.
489 * Works around unavailable responseXML when document.domain
490 * has been modified by Meteor or other tools, in some but not
493 * @param {XMLHTTPRequest} xhr
494 * @return DOMDocument
496 GetResponseXML: function(xhr) {
498 return xhr.responseXML;
500 return (new DOMParser()).parseFromString(xhr.responseText, "text/xml");
505 * Setup function -- DOES NOT trigger actions immediately.
507 * Sets up event handlers on all visible notice's reply buttons to
508 * tweak the new-notice form with needed variables and focus it
511 * (This replaces the default reply button behavior to submit
512 * directly to a form which comes back with a specialized page
513 * with the form data prefilled.)
517 NoticeReply: function() {
518 $('#content .notice_reply').live('click', function(e) {
520 var notice = $(this).closest('li.notice');
521 var nickname = ($('.author .nickname', notice).length > 0) ? $($('.author .nickname', notice)[0]) : $('.author .nickname.uid');
522 SN.U.NoticeInlineReplyTrigger(notice, '@' + nickname.text());
528 * Stub -- kept for compat with plugins for now.
531 NoticeReplyTo: function(notice) {
535 * Open up a notice's inline reply box.
537 * @param {jQuery} notice: jQuery object containing one notice
538 * @param {String} initialText
540 NoticeInlineReplyTrigger: function(notice, initialText) {
541 // Find the notice we're replying to...
542 var id = $($('.notice_id', notice)[0]).text();
543 var parentNotice = notice;
545 // Find the threaded replies view we'll be adding to...
546 var list = notice.closest('.notices');
547 if (list.hasClass('threaded-replies')) {
548 // We're replying to a reply; use reply form on the end of this list.
549 // We'll add our form at the end of this; grab the root notice.
550 parentNotice = list.closest('.notice');
552 // We're replying to a parent notice; pull its threaded list
553 // and we'll add on the end of it. Will add if needed.
554 list = $('ul.threaded-replies', notice);
555 if (list.length == 0) {
556 list = $('<ul class="notices threaded-replies xoxo"></ul>');
561 // See if the form's already open...
562 var replyForm = $('.notice-reply-form', list);
564 var nextStep = function() {
566 replyForm.find('input[name=inreplyto]').val(id);
569 var text = replyForm.find('textarea');
570 if (text.length == 0) {
575 replyto = initialText + ' ';
577 text.val(replyto + text.val().replace(RegExp(replyto, 'i'), ''));
578 text.data('initialText', $.trim(initialText + ''));
580 if (text[0].setSelectionRange) {
581 var len = text.val().length;
582 text[0].setSelectionRange(len,len);
585 if (replyForm.length > 0) {
586 // Update the existing form...
589 // Remove placeholder if any
590 list.find('li.notice-reply-placeholder').remove();
592 // Create the reply form entry at the end
593 var replyItem = $('li.notice-reply', list);
594 if (replyItem.length == 0) {
595 replyItem = $('<li class="notice-reply"></li>');
597 var intermediateStep = function(formMaster) {
598 var formEl = document._importNode(formMaster, true);
599 replyItem.append(formEl);
600 list.append(replyItem);
602 var form = replyForm = $(formEl);
603 SN.Init.NoticeFormSetup(form);
607 if (SN.C.I.NoticeFormMaster) {
608 // We've already saved a master copy of the form.
610 intermediateStep(SN.C.I.NoticeFormMaster);
612 // Fetch a fresh copy of the notice form over AJAX.
613 // Warning: this can have a delay, which looks bad.
614 // @fixme this fallback may or may not work
615 var url = $('#form_notice').attr('action');
616 $.get(url, {ajax: 1}, function(data, textStatus, xhr) {
617 intermediateStep($('form', data)[0]);
624 NoticeInlineReplyPlaceholder: function(notice) {
625 var list = notice.find('ul.threaded-replies');
626 var placeholder = $('<li class="notice-reply-placeholder">' +
627 '<input class="placeholder">' +
629 placeholder.find('input')
630 .val(SN.msg('reply_placeholder'));
631 list.append(placeholder);
635 * Setup function -- DOES NOT apply immediately.
637 * Sets up event handlers for inline reply mini-form placeholders.
638 * Uses 'live' rather than 'bind', so applies to future as well as present items.
640 NoticeInlineReplySetup: function() {
641 $('li.notice-reply-placeholder input')
642 .live('focus', function() {
643 var notice = $(this).closest('li.notice');
644 SN.U.NoticeInlineReplyTrigger(notice);
650 * Setup function -- DOES NOT trigger actions immediately.
652 * Sets up event handlers for repeat forms to toss up a confirmation
653 * popout before submitting.
655 * Uses 'live' rather than 'bind', so applies to future as well as present items.
657 NoticeRepeat: function() {
658 $('.form_repeat').live('click', function(e) {
661 SN.U.NoticeRepeatConfirmation($(this));
667 * Shows a confirmation dialog box variant of the repeat button form.
668 * This seems to use a technique where the repeat form contains
669 * _both_ a standalone button _and_ text and buttons for a dialog.
670 * The dialog will close after its copy of the form is submitted,
671 * or if you click its 'close' button.
673 * The dialog is created by duplicating the original form and changing
674 * its style; while clever, this is hard to generalize and probably
675 * duplicates a lot of unnecessary HTML output.
677 * @fixme create confirmation dialogs through a generalized interface
678 * that can be reused instead of hardcoded text and styles.
680 * @param {jQuery} form
682 NoticeRepeatConfirmation: function(form) {
683 var submit_i = form.find('.submit');
685 var submit = submit_i.clone();
687 .addClass('submit_dialogbox')
688 .removeClass('submit');
690 submit.bind('click', function() { SN.U.FormXHR(form); return false; });
695 .addClass('dialogbox')
696 .append('<button class="close">×</button>')
697 .closest('.notice-options')
700 form.find('button.close').click(function(){
704 .removeClass('dialogbox')
705 .closest('.notice-options')
706 .removeClass('opaque');
708 form.find('.submit_dialogbox').remove();
709 form.find('.submit').show();
716 * Setup function -- DOES NOT trigger actions immediately.
718 * Goes through all notices currently displayed and sets up attachment
719 * handling if needed.
721 NoticeAttachments: function() {
722 $('.notice a.attachment').each(function() {
723 SN.U.NoticeWithAttachment($(this).closest('.notice'));
728 * Setup function -- DOES NOT trigger actions immediately.
730 * Sets up special attachment link handling if needed. Currently this
731 * consists only of making the "more" button used for OStatus message
732 * cropping turn into an auto-expansion button that loads the full
733 * text from an attachment file.
735 * @param {jQuery} notice
737 NoticeWithAttachment: function(notice) {
738 if (notice.find('.attachment').length === 0) {
742 var attachment_more = notice.find('.attachment.more');
743 if (attachment_more.length > 0) {
744 $(attachment_more[0]).click(function() {
746 m.addClass(SN.C.S.Processing);
747 $.get(m.attr('href')+'/ajax', null, function(data) {
748 m.parent('.entry-content').html($(data).find('#attachment_view .entry-content').html());
752 }).attr('title', SN.msg('showmore_tooltip'));
757 * Setup function -- DOES NOT trigger actions immediately.
759 * Sets up event handlers for the file-attachment widget in the
760 * new notice form. When a file is selected, a box will be added
761 * below the text input showing the filename and, if supported
762 * by the browser, a thumbnail preview.
764 * This preview box will also allow removing the attachment
767 * @param {jQuery} form
769 NoticeDataAttach: function(form) {
770 var NDA = form.find('input[type=file]');
771 NDA.change(function(event) {
772 form.find('.attach-status').remove();
774 var filename = $(this).val();
776 // No file -- we've been tricked!
780 var attachStatus = $('<div class="attach-status '+SN.C.S.Success+'"><code></code> <button class="close">×</button></div>');
781 attachStatus.find('code').text(filename);
782 attachStatus.find('button').click(function(){
783 attachStatus.remove();
788 form.append(attachStatus);
790 if (typeof this.files == "object") {
791 // Some newer browsers will let us fetch the files for preview.
792 for (var i = 0; i < this.files.length; i++) {
793 SN.U.PreviewAttach(form, this.files[i]);
800 * Get PHP's MAX_FILE_SIZE setting for this form;
801 * used to apply client-side file size limit checks.
803 * @param {jQuery} form
804 * @return int max size in bytes; 0 or negative means no limit
806 maxFileSize: function(form) {
807 var max = $(form).find('input[name=MAX_FILE_SIZE]').attr('value');
809 return parseInt(max);
816 * For browsers with FileAPI support: make a thumbnail if possible,
817 * and append it into the attachment display widget.
820 * - Firefox 3.6.6, 4.0b7
821 * - Chrome 8.0.552.210
823 * Known ok metadata, can't get contents:
827 * - Opera 10.63, 11 beta (no input.files interface)
829 * @param {jQuery} form
832 * @todo use configured thumbnail size
833 * @todo detect pixel size?
834 * @todo should we render a thumbnail to a canvas and then use the smaller image?
836 PreviewAttach: function(form, file) {
837 var tooltip = file.type + ' ' + Math.round(file.size / 1024) + 'KB';
841 if (typeof window.createObjectURL != "undefined") {
843 * createObjectURL lets us reference the file directly from an <img>
844 * This produces a compact URL with an opaque reference to the file,
845 * which we can reference immediately.
847 * - Firefox 3.6.6: no
848 * - Firefox 4.0b7: no
850 * - Chrome 8.0.552.210: works!
852 blobAsDataURL = function(blob, callback) {
853 callback(window.createObjectURL(blob));
855 } else if (typeof window.FileReader != "undefined") {
857 * FileAPI's FileReader can build a data URL from a blob's contents,
858 * but it must read the file and build it asynchronously. This means
859 * we'll be passing a giant data URL around, which may be inefficient.
861 * - Firefox 3.6.6: works!
862 * - Firefox 4.0b7: works!
864 * - Chrome 8.0.552.210: works!
866 blobAsDataURL = function(blob, callback) {
867 var reader = new FileReader();
868 reader.onload = function(event) {
869 callback(reader.result);
871 reader.readAsDataURL(blob);
877 var imageTypes = ['image/png', 'image/jpeg', 'image/gif', 'image/svg+xml'];
878 if ($.inArray(file.type, imageTypes) == -1) {
879 // We probably don't know how to show the file.
883 var maxSize = 8 * 1024 * 1024;
884 if (file.size > maxSize) {
885 // Don't kill the browser trying to load some giant image.
890 blobAsDataURL(file, function(url) {
892 .attr('title', tooltip)
893 .attr('alt', tooltip)
895 .attr('style', 'height: 120px');
896 form.find('.attach-status').append(img);
899 var img = $('<div></div>').text(tooltip);
900 form.find('.attach-status').append(img);
905 * Setup function -- DOES NOT trigger actions immediately.
907 * Initializes state for the location-lookup features in the
908 * new-notice form. Seems to set up some event handlers for
909 * triggering lookups and using the new values.
911 * @param {jQuery} form
914 * @fixme there's not good visual state update here, so users have a
915 * hard time figuring out if it's working or fixing if it's wrong.
918 NoticeLocationAttach: function(form) {
919 // @fixme this should not be tied to the main notice form, as there may be multiple notice forms...
920 var NLat = form.find('[name=lat]')
921 var NLon = form.find('[name=lon]')
922 var NLNS = form.find('[name=location_ns]').val();
923 var NLID = form.find('[name=location_id]').val();
924 var NLN = ''; // @fixme
925 var NDGe = form.find('[name=notice_data-geo]');
926 var check = form.find('[name=notice_data-geo]');
927 var label = form.find('label.notice_data-geo');
929 function removeNoticeDataGeo(error) {
931 .attr('title', jQuery.trim(label.text()))
932 .removeClass('checked');
934 form.find('[name=lat]').val('');
935 form.find('[name=lon]').val('');
936 form.find('[name=location_ns]').val('');
937 form.find('[name=location_id]').val('');
938 form.find('[name=notice_data-geo]').attr('checked', false);
940 $.cookie(SN.C.S.NoticeDataGeoCookie, 'disabled', { path: '/' });
943 form.find('.geo_status_wrapper').removeClass('success').addClass('error');
944 form.find('.geo_status_wrapper .geo_status').text(error);
946 form.find('.geo_status_wrapper').remove();
950 function getJSONgeocodeURL(geocodeURL, data) {
951 SN.U.NoticeGeoStatus(form, 'Looking up place name...');
952 $.getJSON(geocodeURL, data, function(location) {
955 if (typeof(location.location_ns) != 'undefined') {
956 form.find('[name=location_ns]').val(location.location_ns);
957 lns = location.location_ns;
960 if (typeof(location.location_id) != 'undefined') {
961 form.find('[name=location_id]').val(location.location_id);
962 lid = location.location_id;
965 if (typeof(location.name) == 'undefined') {
966 NLN_text = data.lat + ';' + data.lon;
969 NLN_text = location.name;
972 SN.U.NoticeGeoStatus(form, NLN_text, data.lat, data.lon, location.url);
974 .attr('title', NoticeDataGeo_text.ShareDisable + ' (' + NLN_text + ')');
976 form.find('[name=lat]').val(data.lat);
977 form.find('[name=lon]').val(data.lon);
978 form.find('[name=location_ns]').val(lns);
979 form.find('[name=location_id]').val(lid);
980 form.find('[name=notice_data-geo]').attr('checked', true);
992 $.cookie(SN.C.S.NoticeDataGeoCookie, JSON.stringify(cookieValue), { path: '/' });
996 if (check.length > 0) {
997 if ($.cookie(SN.C.S.NoticeDataGeoCookie) == 'disabled') {
998 check.attr('checked', false);
1001 check.attr('checked', true);
1004 var NGW = form.find('.notice_data-geo_wrap');
1005 var geocodeURL = NGW.attr('data-api');
1008 .attr('title', label.text());
1010 check.change(function() {
1011 if (check.attr('checked') === true || $.cookie(SN.C.S.NoticeDataGeoCookie) === null) {
1013 .attr('title', NoticeDataGeo_text.ShareDisable)
1014 .addClass('checked');
1016 if ($.cookie(SN.C.S.NoticeDataGeoCookie) === null || $.cookie(SN.C.S.NoticeDataGeoCookie) == 'disabled') {
1017 if (navigator.geolocation) {
1018 SN.U.NoticeGeoStatus(form, 'Requesting location from browser...');
1019 navigator.geolocation.getCurrentPosition(
1020 function(position) {
1021 form.find('[name=lat]').val(position.coords.latitude);
1022 form.find('[name=lon]').val(position.coords.longitude);
1025 lat: position.coords.latitude,
1026 lon: position.coords.longitude,
1027 token: $('#token').val()
1030 getJSONgeocodeURL(geocodeURL, data);
1034 switch(error.code) {
1035 case error.PERMISSION_DENIED:
1036 removeNoticeDataGeo('Location permission denied.');
1039 //$('#'+SN.C.S.NoticeDataGeo).attr('checked', false);
1040 removeNoticeDataGeo('Location lookup timeout.');
1051 if (NLat.length > 0 && NLon.length > 0) {
1055 token: $('#token').val()
1058 getJSONgeocodeURL(geocodeURL, data);
1061 removeNoticeDataGeo();
1068 var cookieValue = JSON.parse($.cookie(SN.C.S.NoticeDataGeoCookie));
1070 form.find('[name=lat]').val(cookieValue.NLat);
1071 form.find('[name=lon]').val(cookieValue.NLon);
1072 form.find('[name=location_ns]').val(cookieValue.NLNS);
1073 form.find('[name=location_id]').val(cookieValue.NLID);
1074 form.find('[name=notice_data-geo]').attr('checked', cookieValue.NDG);
1076 SN.U.NoticeGeoStatus(form, cookieValue.NLN, cookieValue.NLat, cookieValue.NLon, cookieValue.NLNU);
1078 .attr('title', NoticeDataGeo_text.ShareDisable + ' (' + cookieValue.NLN + ')')
1079 .addClass('checked');
1083 removeNoticeDataGeo();
1090 * Create or update a geolocation status widget in this notice posting form.
1092 * @param {jQuery} form
1093 * @param {String} status
1094 * @param {String} lat (optional)
1095 * @param {String} lon (optional)
1096 * @param {String} url (optional)
1098 NoticeGeoStatus: function(form, status, lat, lon, url)
1100 var wrapper = form.find('.geo_status_wrapper');
1101 if (wrapper.length == 0) {
1102 wrapper = $('<div class="'+SN.C.S.Success+' geo_status_wrapper"><button class="close" style="float:right">×</button><div class="geo_status"></div></div>');
1103 wrapper.find('button.close').click(function() {
1104 form.find('[name=notice_data-geo]').removeAttr('checked').change();
1107 form.append(wrapper);
1111 label = $('<a></a>').attr('href', url);
1113 label = $('<span></span>');
1117 var latlon = lat + ';' + lon;
1118 label.attr('title', latlon);
1123 wrapper.find('.geo_status').empty().append(label);
1127 * Setup function -- DOES NOT trigger actions immediately.
1129 * Initializes event handlers for the "Send direct message" link on
1130 * profile pages, setting it up to display a dialog box when clicked.
1132 * Unlike the repeat confirmation form, this appears to fetch
1133 * the form _from the original link target_, so the form itself
1134 * doesn't need to be in the current document.
1136 * @fixme breaks ability to open link in new window?
1138 NewDirectMessage: function() {
1139 NDM = $('.entity_send-a-message a');
1140 NDM.attr({'href':NDM.attr('href')+'&ajax=1'});
1141 NDM.bind('click', function() {
1142 var NDMF = $('.entity_send-a-message form');
1143 if (NDMF.length === 0) {
1144 $(this).addClass(SN.C.S.Processing);
1145 $.get(NDM.attr('href'), null, function(data) {
1146 $('.entity_send-a-message').append(document._importNode($('form', data)[0], true));
1147 NDMF = $('.entity_send-a-message .form_notice');
1148 SN.U.FormNoticeXHR(NDMF);
1149 SN.U.FormNoticeEnhancements(NDMF);
1150 NDMF.append('<button class="close">×</button>');
1151 $('.entity_send-a-message button').click(function(){
1155 NDM.removeClass(SN.C.S.Processing);
1160 $('.entity_send-a-message textarea').focus();
1167 * Return a date object with the current local time on the
1168 * given year, month, and day.
1170 * @param {number} year: 4-digit year
1171 * @param {number} month: 0 == January
1172 * @param {number} day: 1 == 1
1175 GetFullYear: function(year, month, day) {
1176 var date = new Date();
1177 date.setFullYear(year, month, day);
1183 * Some sort of object interface for storing some structured
1184 * information in a cookie.
1186 * Appears to be used to save the last-used login nickname?
1187 * That's something that browsers usually take care of for us
1188 * these days, do we really need to do it? Does anything else
1189 * use this interface?
1191 * @fixme what is this?
1192 * @fixme should this use non-cookie local storage when available?
1194 StatusNetInstance: {
1196 * @fixme what is this?
1198 Set: function(value) {
1199 var SNI = SN.U.StatusNetInstance.Get();
1201 value = $.extend(SNI, value);
1205 SN.C.S.StatusNetInstance,
1206 JSON.stringify(value),
1209 expires: SN.U.GetFullYear(2029, 0, 1)
1214 * @fixme what is this?
1217 var cookieValue = $.cookie(SN.C.S.StatusNetInstance);
1218 if (cookieValue !== null) {
1219 return JSON.parse(cookieValue);
1225 * @fixme what is this?
1227 Delete: function() {
1228 $.cookie(SN.C.S.StatusNetInstance, null);
1233 * Check if the current page is a timeline where the current user's
1234 * posts should be displayed immediately on success.
1236 * @fixme this should be done in a saner way, with machine-readable
1237 * info about what page we're looking at.
1239 * @param {DOMElement} notice: HTML chunk with formatted notice
1242 belongsOnTimeline: function(notice) {
1243 var action = $("body").attr('id');
1244 if (action == 'public') {
1248 var profileLink = $('#nav_profile a').attr('href');
1250 var authorUrl = $(notice).find('.vcard.author a.url').attr('href');
1251 if (authorUrl == profileLink) {
1252 if (action == 'all' || action == 'showstream') {
1253 // Posts always show on your own friends and profile streams.
1259 // @fixme tag, group, reply timelines should be feasible as well.
1260 // Mismatch between id-based and name-based user/group links currently complicates
1261 // the lookup, since all our inline mentions contain the absolute links but the
1262 // UI links currently on the page use malleable names.
1268 * Switch to another active input sub-form.
1269 * This will hide the current form (if any), show the new one, and
1270 * update the input type tab selection state.
1272 * @param {String} tag
1274 switchInputFormTab: function(tag) {
1275 // The one that's current isn't current anymore
1276 $('.input_form_nav_tab.current').removeClass('current');
1277 if (tag == 'placeholder') {
1278 // Hack: when showing the placeholder, mark the tab
1279 // as current for 'Status'.
1280 $('#input_form_nav_status').addClass('current');
1282 $('#input_form_nav_'+tag).addClass('current');
1285 $('.input_form.current').removeClass('current');
1286 $('#input_form_'+tag)
1287 .addClass('current')
1288 .find('.ajax-notice').each(function() {
1290 SN.Init.NoticeFormSetup(form);
1292 .find('textarea:first').focus();
1298 * If user is logged in, run setup code for the new notice form:
1303 * - file upload events
1305 NoticeForm: function() {
1306 if ($('body.user_in').length > 0) {
1307 // SN.Init.NoticeFormSetup() will get run
1308 // when forms get displayed for the first time...
1310 // Hack to initialize the placeholder at top
1311 $('#input_form_placeholder input.placeholder').focus(function() {
1312 SN.U.switchInputFormTab("status");
1315 // Make inline reply forms self-close when clicking out.
1316 $('body').bind('click', function(e) {
1317 var currentForm = $('#content .input_forms div.current');
1318 if (currentForm.length > 0) {
1319 if ($('#content .input_forms').has(e.target).length == 0) {
1320 // If all fields are empty, switch back to the placeholder.
1321 var fields = currentForm.find('textarea, input[type=text], input[type=""]');
1322 var anything = false;
1323 fields.each(function() {
1324 anything = anything || $(this).val();
1327 SN.U.switchInputFormTab("placeholder");
1332 var openReplies = $('li.notice-reply');
1333 if (openReplies.length > 0) {
1334 var target = $(e.target);
1335 openReplies.each(function() {
1336 // Did we click outside this one?
1337 var replyItem = $(this);
1338 if (replyItem.has(e.target).length == 0) {
1339 var textarea = replyItem.find('.notice_data-text:first');
1340 var cur = $.trim(textarea.val());
1341 // Only close if there's been no edit.
1342 if (cur == '' || cur == textarea.data('initialText')) {
1343 var parentNotice = replyItem.closest('li.notice');
1345 SN.U.NoticeInlineReplyPlaceholder(parentNotice);
1355 * Encapsulate notice form setup for a single form.
1356 * Plugins can add extra setup by monkeypatching this
1359 * @param {jQuery} form
1361 NoticeFormSetup: function(form) {
1362 if (!form.data('NoticeFormSetup')) {
1363 SN.U.NoticeLocationAttach(form);
1364 SN.U.FormNoticeXHR(form);
1365 SN.U.FormNoticeEnhancements(form);
1366 SN.U.NoticeDataAttach(form);
1367 form.data('NoticeFormSetup', true);
1372 * Run setup code for notice timeline views items:
1374 * - AJAX submission for fave/repeat/reply (if logged in)
1375 * - Attachment link extras ('more' links)
1377 Notices: function() {
1378 if ($('body.user_in').length > 0) {
1379 var masterForm = $('.form_notice:first');
1380 if (masterForm.length > 0) {
1381 SN.C.I.NoticeFormMaster = document._importNode(masterForm[0], true);
1383 SN.U.NoticeRepeat();
1385 SN.U.NoticeInlineReplySetup();
1388 SN.U.NoticeAttachments();
1392 * Run setup code for user & group profile page header area if logged in:
1394 * - AJAX submission for sub/unsub/join/leave/nudge
1395 * - AJAX form popup for direct-message
1397 EntityActions: function() {
1398 if ($('body.user_in').length > 0) {
1399 SN.U.NewDirectMessage();
1404 * Run setup code for login form:
1406 * - loads saved last-used-nickname from cookie
1407 * - sets event handler to save nickname to cookie on submit
1409 * @fixme is this necessary? Browsers do their own form saving these days.
1412 if (SN.U.StatusNetInstance.Get() !== null) {
1413 var nickname = SN.U.StatusNetInstance.Get().Nickname;
1414 if (nickname !== null) {
1415 $('#form_login #nickname').val(nickname);
1419 $('#form_login').bind('submit', function() {
1420 SN.U.StatusNetInstance.Set({Nickname: $('#form_login #nickname').val()});
1426 * Set up any generic 'ajax' form so it submits via AJAX with auto-replacement.
1428 AjaxForms: function() {
1429 $('form.ajax').live('submit', function() {
1430 SN.U.FormXHR($(this));
1436 * Add logic to any file upload forms to handle file size limits,
1437 * on browsers that support basic FileAPI.
1439 UploadForms: function () {
1440 $('input[type=file]').change(function(event) {
1441 if (typeof this.files == "object" && this.files.length > 0) {
1443 for (var i = 0; i < this.files.length; i++) {
1444 size += this.files[i].size;
1447 var max = SN.U.maxFileSize($(this.form));
1448 if (max > 0 && size > max) {
1449 var msg = 'File too large: maximum upload size is %d bytes.';
1450 alert(msg.replace('%d', max));
1454 event.preventDefault();
1464 * Run initialization functions on DOM-ready.
1466 * Note that if we're waiting on other scripts to load, this won't happen
1467 * until that's done. To load scripts asynchronously without delaying setup,
1468 * don't start them loading until after DOM-ready time!
1470 $(document).ready(function(){
1471 SN.Init.AjaxForms();
1472 SN.Init.UploadForms();
1473 if ($('.'+SN.C.S.FormNotice).length > 0) {
1474 SN.Init.NoticeForm();
1476 if ($('#content .notices').length > 0) {
1479 if ($('#content .entity_actions').length > 0) {
1480 SN.Init.EntityActions();
1482 if ($('#form_login').length > 0) {