zulip/static/js/setup.js

57 lines
2.0 KiB
JavaScript

// Miscellaneous early setup.
var csrf_token;
$(function () {
// if the client is mobile, disable websockets for message sending
// (it doesn't work on iOS for some reason).
if (util.is_mobile()) {
page_params.use_websockets = false;
}
page_params.page_load_time = new Date().getTime();
// Display loading indicator. This disappears after the first
// get_events completes.
if (page_params.have_initial_messages && !page_params.needs_tutorial) {
loading.make_indicator($('#page_loading_indicator'), {text: 'Loading...', abs_positioned: true});
} else if (!page_params.needs_tutorial) {
$('#first_run_message').show();
}
// This requires that we used Django's {% csrf_token %} somewhere on the page.
csrf_token = $('input[name="csrfmiddlewaretoken"]').attr('value');
$.ajaxSetup({
beforeSend: function (xhr, settings) {
if (!(/^http:.*/.test(settings.url) || /^https:.*/.test(settings.url))) {
// Only send the token to relative URLs i.e. locally.
xhr.setRequestHeader("X-CSRFToken", csrf_token);
}
},
});
// For some reason, jQuery wants this to be attached to an element.
$(document).ajaxError(function (event, xhr) {
if (xhr.status === 401) {
// We got logged out somehow, perhaps from another window or a session timeout.
// We could display an error message, but jumping right to the login page seems
// smoother and conveys the same information.
window.location.replace(page_params.login_page);
}
});
if (typeof $ !== 'undefined') {
$.fn.expectOne = function () {
if (blueslip && this.length !== 1) {
blueslip.error("Expected one element in jQuery set, " + this.length + " found");
}
return this;
};
$.fn.within = function (sel) {
return ($(this).is(sel) || $(this).closest(sel).length);
};
}
});