/*
* StatusNet - a distributed open-source microblogging tool
* Copyright (C) 2008, StatusNet, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see .
*
* @category UI interaction
* @package StatusNet
* @author Sarven Capadisli
* @author Evan Prodromou
* @author Brion Vibber
* @copyright 2009,2010 StatusNet, Inc.
* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
* @link http://status.net/
*/
var SN = { // StatusNet
C: { // Config
I: { // Init
CounterBlackout: false,
MaxLength: 140,
PatternUsername: /^[0-9a-zA-Z\-_.]*$/,
HTTP20x30x: [200, 201, 202, 203, 204, 205, 206, 300, 301, 302, 303, 304, 305, 306, 307]
},
/**
* @fixme are these worth the trouble? They seem to mostly just duplicate
* themselves while slightly obscuring the actual selector, so it's hard
* to pop over to the HTML and find something.
*
* In theory, minification could reduce them to shorter variable names,
* but at present that doesn't happen with yui-compressor.
*/
S: { // Selector
Disabled: 'disabled',
Warning: 'warning',
Error: 'error',
Success: 'success',
Processing: 'processing',
CommandResult: 'command_result',
FormNotice: 'form_notice',
NoticeDataText: 'notice_data-text',
NoticeTextCount: 'notice_text-count',
NoticeInReplyTo: 'notice_in-reply-to',
NoticeDataAttach: 'notice_data-attach',
NoticeDataAttachSelected: 'notice_data-attach_selected',
NoticeActionSubmit: 'notice_action-submit',
NoticeLat: 'notice_data-lat',
NoticeLon: 'notice_data-lon',
NoticeLocationId: 'notice_data-location_id',
NoticeLocationNs: 'notice_data-location_ns',
NoticeGeoName: 'notice_data-geo_name',
NoticeDataGeo: 'notice_data-geo',
NoticeDataGeoCookie: 'NoticeDataGeo',
NoticeDataGeoSelected: 'notice_data-geo_selected',
StatusNetInstance:'StatusNetInstance'
}
},
/**
* Map of localized message strings exported to script from the PHP
* side via Action::getScriptMessages().
*
* Retrieve them via SN.msg(); this array is an implementation detail.
*
* @access private
*/
messages: {},
/**
* Grabs a localized string that's been previously exported to us
* from server-side code via Action::getScriptMessages().
*
* @example alert(SN.msg('coolplugin-failed'));
*
* @param {String} key: string key name to pull from message index
* @return matching localized message string
*/
msg: function(key) {
if (typeof SN.messages[key] == "undefined") {
return '[' + key + ']';
} else {
return SN.messages[key];
}
},
U: { // Utils
/**
* Setup function -- DOES NOT trigger actions immediately.
*
* Sets up event handlers on the new notice form.
*
* @param {jQuery} form: jQuery object whose first matching element is the form
* @access private
*/
FormNoticeEnhancements: function(form) {
if (jQuery.data(form[0], 'ElementData') === undefined) {
MaxLength = form.find('#'+SN.C.S.NoticeTextCount).text();
if (typeof(MaxLength) == 'undefined') {
MaxLength = SN.C.I.MaxLength;
}
jQuery.data(form[0], 'ElementData', {MaxLength:MaxLength});
SN.U.Counter(form);
NDT = form.find('#'+SN.C.S.NoticeDataText);
NDT.bind('keyup', function(e) {
SN.U.Counter(form);
});
var delayedUpdate= function(e) {
// Cut and paste events fire *before* the operation,
// so we need to trigger an update in a little bit.
// This would be so much easier if the 'change' event
// actually fired every time the value changed. :P
window.setTimeout(function() {
SN.U.Counter(form);
}, 50);
};
// Note there's still no event for mouse-triggered 'delete'.
NDT.bind('cut', delayedUpdate)
.bind('paste', delayedUpdate);
NDT.bind('keydown', function(e) {
SN.U.SubmitOnReturn(e, form);
});
}
else {
form.find('#'+SN.C.S.NoticeTextCount).text(jQuery.data(form[0], 'ElementData').MaxLength);
}
if ($('body')[0].id != 'conversation' && window.location.hash.length === 0 && $(window).scrollTop() == 0) {
form.find('textarea').focus();
}
},
/**
* To be called from keydown event handler on the notice import form.
* Checks if return or enter key was pressed, and if so attempts to
* submit the form and cancel standard processing of the enter key.
*
* @param {Event} event
* @param {jQuery} el: jQuery object whose first element is the notice posting form
*
* @return {boolean} whether to cancel the event? Does this actually pass through?
* @access private
*/
SubmitOnReturn: function(event, el) {
if (event.keyCode == 13 || event.keyCode == 10) {
el.submit();
event.preventDefault();
event.stopPropagation();
$('#'+el[0].id+' #'+SN.C.S.NoticeDataText).blur();
$('body').focus();
return false;
}
return true;
},
/**
* To be called from event handlers on the notice import form.
* Triggers an update of the remaining-characters counter.
*
* Additional counter updates will be suppressed during the
* next half-second to avoid flooding the layout engine with
* updates, followed by another automatic check.
*
* The maximum length is pulled from data established by
* FormNoticeEnhancements.
*
* @param {jQuery} form: jQuery object whose first element is the notice posting form
* @access private
*/
Counter: function(form) {
SN.C.I.FormNoticeCurrent = form;
var MaxLength = jQuery.data(form[0], 'ElementData').MaxLength;
if (MaxLength <= 0) {
return;
}
var remaining = MaxLength - SN.U.CharacterCount(form);
var counter = form.find('#'+SN.C.S.NoticeTextCount);
if (remaining.toString() != counter.text()) {
if (!SN.C.I.CounterBlackout || remaining === 0) {
if (counter.text() != String(remaining)) {
counter.text(remaining);
}
if (remaining < 0) {
form.addClass(SN.C.S.Warning);
} else {
form.removeClass(SN.C.S.Warning);
}
// Skip updates for the next 500ms.
// On slower hardware, updating on every keypress is unpleasant.
if (!SN.C.I.CounterBlackout) {
SN.C.I.CounterBlackout = true;
SN.C.I.FormNoticeCurrent = form;
window.setTimeout("SN.U.ClearCounterBlackout(SN.C.I.FormNoticeCurrent);", 500);
}
}
}
},
/**
* Pull the count of characters in the current edit field.
* Plugins replacing the edit control may need to override this.
*
* @param {jQuery} form: jQuery object whose first element is the notice posting form
* @return number of chars
*/
CharacterCount: function(form) {
return form.find('#'+SN.C.S.NoticeDataText).val().length;
},
/**
* Called internally after the counter update blackout period expires;
* runs another update to make sure we didn't miss anything.
*
* @param {jQuery} form: jQuery object whose first element is the notice posting form
* @access private
*/
ClearCounterBlackout: function(form) {
// Allow keyup events to poke the counter again
SN.C.I.CounterBlackout = false;
// Check if the string changed since we last looked
SN.U.Counter(form);
},
/**
* Helper function to rewrite default HTTP form action URLs to HTTPS
* so we can actually fetch them when on an SSL page in ssl=sometimes
* mode.
*
* It would be better to output URLs that didn't hardcode protocol
* and hostname in the first place...
*
* @param {String} url
* @return string
*/
RewriteAjaxAction: function(url) {
// Quick hack: rewrite AJAX submits to HTTPS if they'd fail otherwise.
if (document.location.protocol == 'https:' && url.substr(0, 5) == 'http:') {
return url.replace(/^http:\/\/[^:\/]+/, 'https://' + document.location.host);
} else {
return url;
}
},
/**
* Grabs form data and submits it asynchronously, with 'ajax=1'
* parameter added to the rest.
*
* If a successful response includes another form, that form
* will be extracted and copied in, replacing the original form.
* If there's no form, the first paragraph will be used.
*
* @fixme can sometimes explode confusingly if returnd data is bogus
* @fixme error handling is pretty vague
* @fixme can't submit file uploads
*
* @param {jQuery} form: jQuery object whose first element is a form
*
* @access public
*/
FormXHR: function(form) {
$.ajax({
type: 'POST',
dataType: 'xml',
url: SN.U.RewriteAjaxAction(form.attr('action')),
data: form.serialize() + '&ajax=1',
beforeSend: function(xhr) {
form
.addClass(SN.C.S.Processing)
.find('.submit')
.addClass(SN.C.S.Disabled)
.attr(SN.C.S.Disabled, SN.C.S.Disabled);
},
error: function (xhr, textStatus, errorThrown) {
alert(errorThrown || textStatus);
},
success: function(data, textStatus) {
if (typeof($('form', data)[0]) != 'undefined') {
form_new = document._importNode($('form', data)[0], true);
form.replaceWith(form_new);
}
else {
form.replaceWith(document._importNode($('p', data)[0], true));
}
}
});
},
/**
* Setup function -- DOES NOT trigger actions immediately.
*
* Sets up event handlers for special-cased async submission of the
* notice-posting form, including some pre-post validation.
*
* Unlike FormXHR() this does NOT submit the form immediately!
* It sets up event handlers so that any method of submitting the
* form (click on submit button, enter, submit() etc) will trigger
* it properly.
*
* Also unlike FormXHR(), this system will use a hidden iframe
* automatically to handle file uploads via
* controls.
*
* @fixme tl;dr
* @fixme vast swaths of duplicate code and really long variable names clutter this function up real bad
* @fixme error handling is unreliable
* @fixme cookieValue is a global variable, but probably shouldn't be
* @fixme saving the location cache cookies should be split out
* @fixme some error messages are hardcoded english: needs i18n
* @fixme special-case for bookmarklet is confusing and uses a global var "self". Is this ok?
*
* @param {jQuery} form: jQuery object whose first element is a form
*
* @access public
*/
FormNoticeXHR: function(form) {
SN.C.I.NoticeDataGeo = {};
form.append('');
// Make sure we don't have a mixed HTTP/HTTPS submission...
form.attr('action', SN.U.RewriteAjaxAction(form.attr('action')));
/**
* Show a response feedback bit under the new-notice dialog.
*
* @param {String} cls: CSS class name to use ('error' or 'success')
* @param {String} text
* @access private
*/
var showFeedback = function(cls, text) {
form.append(
$('')
.addClass(cls)
.text(text)
);
};
/**
* Hide the previous response feedback, if any.
*/
var removeFeedback = function() {
form.find('.form_response').remove();
};
form.ajaxForm({
dataType: 'xml',
timeout: '60000',
beforeSend: function(formData) {
if (form.find('#'+SN.C.S.NoticeDataText)[0].value.length === 0) {
form.addClass(SN.C.S.Warning);
return false;
}
form
.addClass(SN.C.S.Processing)
.find('#'+SN.C.S.NoticeActionSubmit)
.addClass(SN.C.S.Disabled)
.attr(SN.C.S.Disabled, SN.C.S.Disabled);
SN.C.I.NoticeDataGeo.NLat = $('#'+SN.C.S.NoticeLat).val();
SN.C.I.NoticeDataGeo.NLon = $('#'+SN.C.S.NoticeLon).val();
SN.C.I.NoticeDataGeo.NLNS = $('#'+SN.C.S.NoticeLocationNs).val();
SN.C.I.NoticeDataGeo.NLID = $('#'+SN.C.S.NoticeLocationId).val();
SN.C.I.NoticeDataGeo.NDG = $('#'+SN.C.S.NoticeDataGeo).attr('checked');
cookieValue = $.cookie(SN.C.S.NoticeDataGeoCookie);
if (cookieValue !== null && cookieValue != 'disabled') {
cookieValue = JSON.parse(cookieValue);
SN.C.I.NoticeDataGeo.NLat = $('#'+SN.C.S.NoticeLat).val(cookieValue.NLat).val();
SN.C.I.NoticeDataGeo.NLon = $('#'+SN.C.S.NoticeLon).val(cookieValue.NLon).val();
if ($('#'+SN.C.S.NoticeLocationNs).val(cookieValue.NLNS)) {
SN.C.I.NoticeDataGeo.NLNS = $('#'+SN.C.S.NoticeLocationNs).val(cookieValue.NLNS).val();
SN.C.I.NoticeDataGeo.NLID = $('#'+SN.C.S.NoticeLocationId).val(cookieValue.NLID).val();
}
}
if (cookieValue == 'disabled') {
SN.C.I.NoticeDataGeo.NDG = $('#'+SN.C.S.NoticeDataGeo).attr('checked', false).attr('checked');
}
else {
SN.C.I.NoticeDataGeo.NDG = $('#'+SN.C.S.NoticeDataGeo).attr('checked', true).attr('checked');
}
return true;
},
error: function (xhr, textStatus, errorThrown) {
form
.removeClass(SN.C.S.Processing)
.find('#'+SN.C.S.NoticeActionSubmit)
.removeClass(SN.C.S.Disabled)
.removeAttr(SN.C.S.Disabled, SN.C.S.Disabled);
removeFeedback();
if (textStatus == 'timeout') {
// @fixme i18n
showFeedback('error', 'Sorry! We had trouble sending your notice. The servers are overloaded. Please try again, and contact the site administrator if this problem persists.');
}
else {
var response = SN.U.GetResponseXML(xhr);
if ($('.'+SN.C.S.Error, response).length > 0) {
form.append(document._importNode($('.'+SN.C.S.Error, response)[0], true));
}
else {
if (parseInt(xhr.status) === 0 || jQuery.inArray(parseInt(xhr.status), SN.C.I.HTTP20x30x) >= 0) {
form
.resetForm()
.find('#'+SN.C.S.NoticeDataAttachSelected).remove();
SN.U.FormNoticeEnhancements(form);
}
else {
// @fixme i18n
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.');
}
}
}
},
success: function(data, textStatus) {
removeFeedback();
var errorResult = $('#'+SN.C.S.Error, data);
if (errorResult.length > 0) {
showFeedback('error', errorResult.text());
}
else {
if($('body')[0].id == 'bookmarklet') {
// @fixme self is not referenced anywhere?
self.close();
}
var commandResult = $('#'+SN.C.S.CommandResult, data);
if (commandResult.length > 0) {
showFeedback('success', commandResult.text());
}
else {
// New notice post was successful. If on our timeline, show it!
var notice = document._importNode($('li', data)[0], true);
var notices = $('#notices_primary .notices');
if (notices.length > 0 && SN.U.belongsOnTimeline(notice)) {
if ($('#'+notice.id).length === 0) {
var notice_irt_value = $('#'+SN.C.S.NoticeInReplyTo).val();
var notice_irt = '#notices_primary #notice-'+notice_irt_value;
if($('body')[0].id == 'conversation') {
if(notice_irt_value.length > 0 && $(notice_irt+' .notices').length < 1) {
$(notice_irt).append('
');
}
$($(notice_irt+' .notices')[0]).append(notice);
}
else {
notices.prepend(notice);
}
$('#'+notice.id)
.css({display:'none'})
.fadeIn(2500);
SN.U.NoticeWithAttachment($('#'+notice.id));
SN.U.NoticeReplyTo($('#'+notice.id));
}
}
else {
// Not on a timeline that this belongs on?
// Just show a success message.
showFeedback('success', $('title', data).text());
}
}
form.resetForm();
form.find('#'+SN.C.S.NoticeInReplyTo).val('');
form.find('#'+SN.C.S.NoticeDataAttachSelected).remove();
SN.U.FormNoticeEnhancements(form);
}
},
complete: function(xhr, textStatus) {
form
.removeClass(SN.C.S.Processing)
.find('#'+SN.C.S.NoticeActionSubmit)
.removeAttr(SN.C.S.Disabled)
.removeClass(SN.C.S.Disabled);
$('#'+SN.C.S.NoticeLat).val(SN.C.I.NoticeDataGeo.NLat);
$('#'+SN.C.S.NoticeLon).val(SN.C.I.NoticeDataGeo.NLon);
if ($('#'+SN.C.S.NoticeLocationNs)) {
$('#'+SN.C.S.NoticeLocationNs).val(SN.C.I.NoticeDataGeo.NLNS);
$('#'+SN.C.S.NoticeLocationId).val(SN.C.I.NoticeDataGeo.NLID);
}
$('#'+SN.C.S.NoticeDataGeo).attr('checked', SN.C.I.NoticeDataGeo.NDG);
}
});
},
/**
* Fetch an XML DOM from an XHR's response data.
*
* Works around unavailable responseXML when document.domain
* has been modified by Meteor or other tools, in some but not
* all browsers.
*
* @param {XMLHTTPRequest} xhr
* @return DOMDocument
*/
GetResponseXML: function(xhr) {
try {
return xhr.responseXML;
} catch (e) {
return (new DOMParser()).parseFromString(xhr.responseText, "text/xml");
}
},
/**
* Setup function -- DOES NOT trigger actions immediately.
*
* Sets up event handlers on all visible notice's reply buttons to
* tweak the new-notice form with needed variables and focus it
* when pushed.
*
* (This replaces the default reply button behavior to submit
* directly to a form which comes back with a specialized page
* with the form data prefilled.)
*
* @access private
*/
NoticeReply: function() {
if ($('#'+SN.C.S.NoticeDataText).length > 0 && $('#content .notice_reply').length > 0) {
$('#content .notice').each(function() { SN.U.NoticeReplyTo($(this)); });
}
},
/**
* Setup function -- DOES NOT trigger actions immediately.
*
* Sets up event handlers on the given notice's reply button to
* tweak the new-notice form with needed variables and focus it
* when pushed.
*
* (This replaces the default reply button behavior to submit
* directly to a form which comes back with a specialized page
* with the form data prefilled.)
*
* @param {jQuery} notice: jQuery object containing one or more notices
* @access private
*/
NoticeReplyTo: function(notice) {
notice.find('.notice_reply').live('click', function() {
var nickname = ($('.author .nickname', notice).length > 0) ? $($('.author .nickname', notice)[0]) : $('.author .nickname.uid');
SN.U.NoticeReplySet(nickname.text(), $($('.notice_id', notice)[0]).text());
return false;
});
},
/**
* Updates the new notice posting form with bits for replying to the
* given user. Adds replyto parameter to the form, and a "@foo" to the
* text area.
*
* @fixme replyto is a global variable, but probably shouldn't be
*
* @param {String} nick
* @param {String} id
*/
NoticeReplySet: function(nick,id) {
if (nick.match(SN.C.I.PatternUsername)) {
var text = $('#'+SN.C.S.NoticeDataText);
if (text.length > 0) {
replyto = '@' + nick + ' ';
text.val(replyto + text.val().replace(RegExp(replyto, 'i'), ''));
$('#'+SN.C.S.FormNotice+' #'+SN.C.S.NoticeInReplyTo).val(id);
text[0].focus();
if (text[0].setSelectionRange) {
var len = text.val().length;
text[0].setSelectionRange(len,len);
}
}
}
},
/**
* Setup function -- DOES NOT apply immediately.
*
* Sets up event handlers for favor/disfavor forms to submit via XHR.
* Uses 'live' rather than 'bind', so applies to future as well as present items.
*/
NoticeFavor: function() {
$('.form_favor').live('click', function() { SN.U.FormXHR($(this)); return false; });
$('.form_disfavor').live('click', function() { SN.U.FormXHR($(this)); return false; });
},
/**
* Setup function -- DOES NOT trigger actions immediately.
*
* Sets up event handlers for repeat forms to toss up a confirmation
* popout before submitting.
*
* Uses 'live' rather than 'bind', so applies to future as well as present items.
*/
NoticeRepeat: function() {
$('.form_repeat').live('click', function(e) {
e.preventDefault();
SN.U.NoticeRepeatConfirmation($(this));
return false;
});
},
/**
* Shows a confirmation dialog box variant of the repeat button form.
* This seems to use a technique where the repeat form contains
* _both_ a standalone button _and_ text and buttons for a dialog.
* The dialog will close after its copy of the form is submitted,
* or if you click its 'close' button.
*
* The dialog is created by duplicating the original form and changing
* its style; while clever, this is hard to generalize and probably
* duplicates a lot of unnecessary HTML output.
*
* @fixme create confirmation dialogs through a generalized interface
* that can be reused instead of hardcoded text and styles.
*
* @param {jQuery} form
*/
NoticeRepeatConfirmation: function(form) {
var submit_i = form.find('.submit');
var submit = submit_i.clone();
submit
.addClass('submit_dialogbox')
.removeClass('submit');
form.append(submit);
submit.bind('click', function() { SN.U.FormXHR(form); return false; });
submit_i.hide();
form
.addClass('dialogbox')
.append('')
.closest('.notice-options')
.addClass('opaque');
form.find('button.close').click(function(){
$(this).remove();
form
.removeClass('dialogbox')
.closest('.notice-options')
.removeClass('opaque');
form.find('.submit_dialogbox').remove();
form.find('.submit').show();
return false;
});
},
/**
* Setup function -- DOES NOT trigger actions immediately.
*
* Goes through all notices currently displayed and sets up attachment
* handling if needed.
*/
NoticeAttachments: function() {
$('.notice a.attachment').each(function() {
SN.U.NoticeWithAttachment($(this).closest('.notice'));
});
},
/**
* Setup function -- DOES NOT trigger actions immediately.
*
* Sets up special attachment link handling if needed. Currently this
* consists only of making the "more" button used for OStatus message
* cropping turn into an auto-expansion button that loads the full
* text from an attachment file.
*
* @param {jQuery} notice
*/
NoticeWithAttachment: function(notice) {
if (notice.find('.attachment').length === 0) {
return;
}
var attachment_more = notice.find('.attachment.more');
if (attachment_more.length > 0) {
$(attachment_more[0]).click(function() {
var m = $(this);
m.addClass(SN.C.S.Processing);
$.get(m.attr('href')+'/ajax', null, function(data) {
m.parent('.entry-content').html($(data).find('#attachment_view .entry-content').html());
});
return false;
}).attr('title', SN.msg('showmore_tooltip'));
}
},
/**
* Setup function -- DOES NOT trigger actions immediately.
*
* Sets up event handlers for the file-attachment widget in the
* new notice form. When a file is selected, a box will be added
* below the text input showing the filename and, if supported
* by the browser, a thumbnail preview.
*
* This preview box will also allow removing the attachment
* prior to posting.
*/
NoticeDataAttach: function() {
NDA = $('#'+SN.C.S.NoticeDataAttach);
NDA.change(function() {
S = '
'+$(this).val()+'
';
NDAS = $('#'+SN.C.S.NoticeDataAttachSelected);
if (NDAS.length > 0) {
NDAS.replaceWith(S);
}
else {
$('#'+SN.C.S.FormNotice).append(S);
}
$('#'+SN.C.S.NoticeDataAttachSelected+' button').click(function(){
$('#'+SN.C.S.NoticeDataAttachSelected).remove();
NDA.val('');
return false;
});
if (typeof this.files == "object") {
// Some newer browsers will let us fetch the files for preview.
for (var i = 0; i < this.files.length; i++) {
SN.U.PreviewAttach(this.files[i]);
}
}
});
},
/**
* For browsers with FileAPI support: make a thumbnail if possible,
* and append it into the attachment display widget.
*
* Known good:
* - Firefox 3.6.6, 4.0b7
* - Chrome 8.0.552.210
*
* Known ok metadata, can't get contents:
* - Safari 5.0.2
*
* Known fail:
* - Opera 10.63, 11 beta (no input.files interface)
*
* @param {File} file
*
* @todo use configured thumbnail size
* @todo detect pixel size?
* @todo should we render a thumbnail to a canvas and then use the smaller image?
*/
PreviewAttach: function(file) {
var tooltip = file.type + ' ' + Math.round(file.size / 1024) + 'KB';
var preview = true;
var blobAsDataURL;
if (typeof window.createObjectURL != "undefined") {
/**
* createObjectURL lets us reference the file directly from an
* This produces a compact URL with an opaque reference to the file,
* which we can reference immediately.
*
* - Firefox 3.6.6: no
* - Firefox 4.0b7: no
* - Safari 5.0.2: no
* - Chrome 8.0.552.210: works!
*/
blobAsDataURL = function(blob, callback) {
callback(window.createObjectURL(blob));
}
} else if (typeof window.FileReader != "undefined") {
/**
* FileAPI's FileReader can build a data URL from a blob's contents,
* but it must read the file and build it asynchronously. This means
* we'll be passing a giant data URL around, which may be inefficient.
*
* - Firefox 3.6.6: works!
* - Firefox 4.0b7: works!
* - Safari 5.0.2: no
* - Chrome 8.0.552.210: works!
*/
blobAsDataURL = function(blob, callback) {
var reader = new FileReader();
reader.onload = function(event) {
callback(reader.result);
}
reader.readAsDataURL(blob);
}
} else {
preview = false;
}
var imageTypes = ['image/png', 'image/jpeg', 'image/gif', 'image/svg+xml'];
if ($.inArray(file.type, imageTypes) == -1) {
// We probably don't know how to show the file.
preview = false;
}
var maxSize = 8 * 1024 * 1024;
if (file.size > maxSize) {
// Don't kill the browser trying to load some giant image.
preview = false;
}
if (preview) {
blobAsDataURL(file, function(url) {
var img = $('')
.attr('title', tooltip)
.attr('alt', tooltip)
.attr('src', url)
.attr('style', 'height: 120px');
$('#'+SN.C.S.NoticeDataAttachSelected).append(img);
});
} else {
var img = $('').text(tooltip);
$('#'+SN.C.S.NoticeDataAttachSelected).append(img);
}
},
/**
* Setup function -- DOES NOT trigger actions immediately.
*
* Initializes state for the location-lookup features in the
* new-notice form. Seems to set up some event handlers for
* triggering lookups and using the new values.
*
* @fixme tl;dr
* @fixme there's not good visual state update here, so users have a
* hard time figuring out if it's working or fixing if it's wrong.
*
*/
NoticeLocationAttach: function() {
var NLat = $('#'+SN.C.S.NoticeLat).val();
var NLon = $('#'+SN.C.S.NoticeLon).val();
var NLNS = $('#'+SN.C.S.NoticeLocationNs).val();
var NLID = $('#'+SN.C.S.NoticeLocationId).val();
var NLN = $('#'+SN.C.S.NoticeGeoName).text();
var NDGe = $('#'+SN.C.S.NoticeDataGeo);
function removeNoticeDataGeo() {
$('label[for='+SN.C.S.NoticeDataGeo+']')
.attr('title', jQuery.trim($('label[for='+SN.C.S.NoticeDataGeo+']').text()))
.removeClass('checked');
$('#'+SN.C.S.NoticeLat).val('');
$('#'+SN.C.S.NoticeLon).val('');
$('#'+SN.C.S.NoticeLocationNs).val('');
$('#'+SN.C.S.NoticeLocationId).val('');
$('#'+SN.C.S.NoticeDataGeo).attr('checked', false);
$.cookie(SN.C.S.NoticeDataGeoCookie, 'disabled', { path: '/' });
}
function getJSONgeocodeURL(geocodeURL, data) {
$.getJSON(geocodeURL, data, function(location) {
var lns, lid;
if (typeof(location.location_ns) != 'undefined') {
$('#'+SN.C.S.NoticeLocationNs).val(location.location_ns);
lns = location.location_ns;
}
if (typeof(location.location_id) != 'undefined') {
$('#'+SN.C.S.NoticeLocationId).val(location.location_id);
lid = location.location_id;
}
if (typeof(location.name) == 'undefined') {
NLN_text = data.lat + ';' + data.lon;
}
else {
NLN_text = location.name;
}
$('label[for='+SN.C.S.NoticeDataGeo+']')
.attr('title', NoticeDataGeo_text.ShareDisable + ' (' + NLN_text + ')');
$('#'+SN.C.S.NoticeLat).val(data.lat);
$('#'+SN.C.S.NoticeLon).val(data.lon);
$('#'+SN.C.S.NoticeLocationNs).val(lns);
$('#'+SN.C.S.NoticeLocationId).val(lid);
$('#'+SN.C.S.NoticeDataGeo).attr('checked', true);
var cookieValue = {
NLat: data.lat,
NLon: data.lon,
NLNS: lns,
NLID: lid,
NLN: NLN_text,
NLNU: location.url,
NDG: true
};
$.cookie(SN.C.S.NoticeDataGeoCookie, JSON.stringify(cookieValue), { path: '/' });
});
}
if (NDGe.length > 0) {
if ($.cookie(SN.C.S.NoticeDataGeoCookie) == 'disabled') {
NDGe.attr('checked', false);
}
else {
NDGe.attr('checked', true);
}
var NGW = $('#notice_data-geo_wrap');
var geocodeURL = NGW.attr('title');
NGW.removeAttr('title');
$('label[for='+SN.C.S.NoticeDataGeo+']')
.attr('title', jQuery.trim($('label[for='+SN.C.S.NoticeDataGeo+']').text()));
NDGe.change(function() {
if ($('#'+SN.C.S.NoticeDataGeo).attr('checked') === true || $.cookie(SN.C.S.NoticeDataGeoCookie) === null) {
$('label[for='+SN.C.S.NoticeDataGeo+']')
.attr('title', NoticeDataGeo_text.ShareDisable)
.addClass('checked');
if ($.cookie(SN.C.S.NoticeDataGeoCookie) === null || $.cookie(SN.C.S.NoticeDataGeoCookie) == 'disabled') {
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(
function(position) {
$('#'+SN.C.S.NoticeLat).val(position.coords.latitude);
$('#'+SN.C.S.NoticeLon).val(position.coords.longitude);
var data = {
lat: position.coords.latitude,
lon: position.coords.longitude,
token: $('#token').val()
};
getJSONgeocodeURL(geocodeURL, data);
},
function(error) {
switch(error.code) {
case error.PERMISSION_DENIED:
removeNoticeDataGeo();
break;
case error.TIMEOUT:
$('#'+SN.C.S.NoticeDataGeo).attr('checked', false);
break;
}
},
{
timeout: 10000
}
);
}
else {
if (NLat.length > 0 && NLon.length > 0) {
var data = {
lat: NLat,
lon: NLon,
token: $('#token').val()
};
getJSONgeocodeURL(geocodeURL, data);
}
else {
removeNoticeDataGeo();
$('#'+SN.C.S.NoticeDataGeo).remove();
$('label[for='+SN.C.S.NoticeDataGeo+']').remove();
}
}
}
else {
var cookieValue = JSON.parse($.cookie(SN.C.S.NoticeDataGeoCookie));
$('#'+SN.C.S.NoticeLat).val(cookieValue.NLat);
$('#'+SN.C.S.NoticeLon).val(cookieValue.NLon);
$('#'+SN.C.S.NoticeLocationNs).val(cookieValue.NLNS);
$('#'+SN.C.S.NoticeLocationId).val(cookieValue.NLID);
$('#'+SN.C.S.NoticeDataGeo).attr('checked', cookieValue.NDG);
$('label[for='+SN.C.S.NoticeDataGeo+']')
.attr('title', NoticeDataGeo_text.ShareDisable + ' (' + cookieValue.NLN + ')')
.addClass('checked');
}
}
else {
removeNoticeDataGeo();
}
}).change();
}
},
/**
* Setup function -- DOES NOT trigger actions immediately.
*
* Initializes event handlers for the "Send direct message" link on
* profile pages, setting it up to display a dialog box when clicked.
*
* Unlike the repeat confirmation form, this appears to fetch
* the form _from the original link target_, so the form itself
* doesn't need to be in the current document.
*
* @fixme breaks ability to open link in new window?
*/
NewDirectMessage: function() {
NDM = $('.entity_send-a-message a');
NDM.attr({'href':NDM.attr('href')+'&ajax=1'});
NDM.bind('click', function() {
var NDMF = $('.entity_send-a-message form');
if (NDMF.length === 0) {
$(this).addClass(SN.C.S.Processing);
$.get(NDM.attr('href'), null, function(data) {
$('.entity_send-a-message').append(document._importNode($('form', data)[0], true));
NDMF = $('.entity_send-a-message .form_notice');
SN.U.FormNoticeXHR(NDMF);
SN.U.FormNoticeEnhancements(NDMF);
NDMF.append('');
$('.entity_send-a-message button').click(function(){
NDMF.hide();
return false;
});
NDM.removeClass(SN.C.S.Processing);
});
}
else {
NDMF.show();
$('.entity_send-a-message textarea').focus();
}
return false;
});
},
/**
* Return a date object with the current local time on the
* given year, month, and day.
*
* @param {number} year: 4-digit year
* @param {number} month: 0 == January
* @param {number} day: 1 == 1
* @return {Date}
*/
GetFullYear: function(year, month, day) {
var date = new Date();
date.setFullYear(year, month, day);
return date;
},
/**
* Some sort of object interface for storing some structured
* information in a cookie.
*
* Appears to be used to save the last-used login nickname?
* That's something that browsers usually take care of for us
* these days, do we really need to do it? Does anything else
* use this interface?
*
* @fixme what is this?
* @fixme should this use non-cookie local storage when available?
*/
StatusNetInstance: {
/**
* @fixme what is this?
*/
Set: function(value) {
var SNI = SN.U.StatusNetInstance.Get();
if (SNI !== null) {
value = $.extend(SNI, value);
}
$.cookie(
SN.C.S.StatusNetInstance,
JSON.stringify(value),
{
path: '/',
expires: SN.U.GetFullYear(2029, 0, 1)
});
},
/**
* @fixme what is this?
*/
Get: function() {
var cookieValue = $.cookie(SN.C.S.StatusNetInstance);
if (cookieValue !== null) {
return JSON.parse(cookieValue);
}
return null;
},
/**
* @fixme what is this?
*/
Delete: function() {
$.cookie(SN.C.S.StatusNetInstance, null);
}
},
/**
* Check if the current page is a timeline where the current user's
* posts should be displayed immediately on success.
*
* @fixme this should be done in a saner way, with machine-readable
* info about what page we're looking at.
*
* @param {DOMElement} notice: HTML chunk with formatted notice
* @return boolean
*/
belongsOnTimeline: function(notice) {
var action = $("body").attr('id');
if (action == 'public') {
return true;
}
var profileLink = $('#nav_profile a').attr('href');
if (profileLink) {
var authorUrl = $(notice).find('.entry-title .author a.url').attr('href');
if (authorUrl == profileLink) {
if (action == 'all' || action == 'showstream') {
// Posts always show on your own friends and profile streams.
return true;
}
}
}
// @fixme tag, group, reply timelines should be feasible as well.
// Mismatch between id-based and name-based user/group links currently complicates
// the lookup, since all our inline mentions contain the absolute links but the
// UI links currently on the page use malleable names.
return false;
}
},
Init: {
/**
* If user is logged in, run setup code for the new notice form:
*
* - char counter
* - AJAX submission
* - location events
* - file upload events
*/
NoticeForm: function() {
if ($('body.user_in').length > 0) {
SN.U.NoticeLocationAttach();
$('.'+SN.C.S.FormNotice).each(function() {
SN.U.FormNoticeXHR($(this));
SN.U.FormNoticeEnhancements($(this));
});
SN.U.NoticeDataAttach();
}
},
/**
* Run setup code for notice timeline views items:
*
* - AJAX submission for fave/repeat/reply (if logged in)
* - Attachment link extras ('more' links)
*/
Notices: function() {
if ($('body.user_in').length > 0) {
SN.U.NoticeFavor();
SN.U.NoticeRepeat();
SN.U.NoticeReply();
}
SN.U.NoticeAttachments();
},
/**
* Run setup code for user & group profile page header area if logged in:
*
* - AJAX submission for sub/unsub/join/leave/nudge
* - AJAX form popup for direct-message
*/
EntityActions: function() {
if ($('body.user_in').length > 0) {
$('.form_user_subscribe').live('click', function() { SN.U.FormXHR($(this)); return false; });
$('.form_user_unsubscribe').live('click', function() { SN.U.FormXHR($(this)); return false; });
$('.form_group_join').live('click', function() { SN.U.FormXHR($(this)); return false; });
$('.form_group_leave').live('click', function() { SN.U.FormXHR($(this)); return false; });
$('.form_user_nudge').live('click', function() { SN.U.FormXHR($(this)); return false; });
SN.U.NewDirectMessage();
}
},
/**
* Run setup code for login form:
*
* - loads saved last-used-nickname from cookie
* - sets event handler to save nickname to cookie on submit
*
* @fixme is this necessary? Browsers do their own form saving these days.
*/
Login: function() {
if (SN.U.StatusNetInstance.Get() !== null) {
var nickname = SN.U.StatusNetInstance.Get().Nickname;
if (nickname !== null) {
$('#form_login #nickname').val(nickname);
}
}
$('#form_login').bind('submit', function() {
SN.U.StatusNetInstance.Set({Nickname: $('#form_login #nickname').val()});
return true;
});
}
}
};
/**
* Run initialization functions on DOM-ready.
*
* Note that if we're waiting on other scripts to load, this won't happen
* until that's done. To load scripts asynchronously without delaying setup,
* don't start them loading until after DOM-ready time!
*/
$(document).ready(function(){
if ($('.'+SN.C.S.FormNotice).length > 0) {
SN.Init.NoticeForm();
}
if ($('#content .notices').length > 0) {
SN.Init.Notices();
}
if ($('#content .entity_actions').length > 0) {
SN.Init.EntityActions();
}
if ($('#form_login').length > 0) {
SN.Init.Login();
}
});