zulip/static/js/gear_menu.js

65 lines
2.1 KiB
JavaScript

var gear_menu = (function () {
var exports = {};
// We want to remember how far we were scrolled on each 'tab'.
// To do so, we need to save away the old position of the
// scrollbar when we switch to a new tab (and restore it
// when we switch back.)
var scroll_positions = {};
exports.initialize = function () {
admin.show_or_hide_menu_item();
$('#gear-menu a[data-toggle="tab"]').on('show', function (e) {
// Save the position of our old tab away, before we switch
var old_tab = $(e.relatedTarget).attr('href');
scroll_positions[old_tab] = viewport.scrollTop();
});
$('#gear-menu a[data-toggle="tab"]').on('shown', function (e) {
var target_tab = $(e.target).attr('href');
resize.resize_bottom_whitespace();
// Hide all our error messages when switching tabs
$('.alert-error').hide();
$('.alert-success').hide();
$('.alert-info').hide();
$('.alert').hide();
// Set the URL bar title to show the sub-page you're currently on.
var browser_url = target_tab;
if (browser_url === "#home") {
browser_url = "";
}
hashchange.changehash(browser_url);
// After we show the new tab, restore its old scroll position
// (we apparently have to do this after setting the hash,
// because otherwise that action may scroll us somewhere.)
if (scroll_positions.hasOwnProperty(target_tab)) {
viewport.scrollTop(scroll_positions[target_tab]);
} else {
if (target_tab === '#home') {
navigate.scroll_to_selected();
} else {
viewport.scrollTop(0);
}
}
});
// The admin and settings pages are generated client-side through
// templates.
var admin_link = $('#gear-menu a[href="#administration"]');
admin_link.on('shown', admin.setup_page);
var settings_link = $('#gear-menu a[href="#settings"]');
settings_link.on('shown', settings.setup_page);
};
return exports;
}());
if (typeof module !== 'undefined') {
module.exports = gear_menu;
}