cpython/Doc/tools/static/version_switch.js

68 lines
1.8 KiB
JavaScript

(function() {
'use strict';
var all_versions = {
'3.7': 'dev (3.7)',
'3.6': '3.6',
'3.5': '3.5',
'3.4': '3.4',
'3.3': '3.3',
'2.7': '2.7',
};
function build_select(current_version, current_release) {
var buf = ['<select>'];
$.each(all_versions, function(version, title) {
buf.push('<option value="' + version + '"');
if (version == current_version)
buf.push(' selected="selected">' + current_release + '</option>');
else
buf.push('>' + title + '</option>');
});
buf.push('</select>');
return buf.join('');
}
function patch_url(url, new_version) {
var url_re = /\.org\/(\d|py3k|dev|((release\/)?\d\.\d[\w\d\.]*))\//,
new_url = url.replace(url_re, '.org/' + new_version + '/');
if (new_url == url && !new_url.match(url_re)) {
// python 2 url without version?
new_url = url.replace(/\.org\//, '.org/' + new_version + '/');
}
return new_url;
}
function on_switch() {
var selected = $(this).children('option:selected').attr('value');
var url = window.location.href,
new_url = patch_url(url, selected);
if (new_url != url) {
// check beforehand if url exists, else redirect to version's start page
$.ajax({
url: new_url,
success: function() {
window.location.href = new_url;
},
error: function() {
window.location.href = 'https://docs.python.org/' + selected;
}
});
}
}
$(document).ready(function() {
var release = DOCUMENTATION_OPTIONS.VERSION;
var version = release.substr(0, 3);
var select = build_select(version, release);
$('.version_switcher_placeholder').html(select);
$('.version_switcher_placeholder select').bind('change', on_switch);
});
})();