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| 1 | +(function() { |
| 2 | + 'use strict'; |
| 3 | + |
| 4 | + // Parses versions in URL segments like: |
| 5 | + // "3", "dev", "release/2.7" or "3.6rc2" |
| 6 | + var version_regexs = [ |
| 7 | + '(?:\\d)', |
| 8 | + '(?:\\d\\.\\d[\\w\\d\\.]*)', |
| 9 | + '(?:dev)', |
| 10 | + '(?:release/\\d.\\d[\\x\\d\\.]*)']; |
| 11 | + |
| 12 | + var all_versions = { |
| 13 | + '3.8': 'dev (3.8)', |
| 14 | + '3.7': '3.7', |
| 15 | + '3.6': '3.6', |
| 16 | + '3.5': '3.5', |
| 17 | + '2.7': '2.7', |
| 18 | + }; |
| 19 | + |
| 20 | + var all_languages = { |
| 21 | + 'en': 'English', |
| 22 | + 'fr': 'French', |
| 23 | + 'ja': 'Japanese', |
| 24 | + 'ko': 'Korean', |
| 25 | + }; |
| 26 | + |
| 27 | + function build_version_select(current_version, current_release) { |
| 28 | + var buf = ['<select>']; |
| 29 | + |
| 30 | + $.each(all_versions, function(version, title) { |
| 31 | + buf.push('<option value="' + version + '"'); |
| 32 | + if (version == current_version) |
| 33 | + buf.push(' selected="selected">' + current_release + '</option>'); |
| 34 | + else |
| 35 | + buf.push('>' + title + '</option>'); |
| 36 | + }); |
| 37 | + |
| 38 | + buf.push('</select>'); |
| 39 | + return buf.join(''); |
| 40 | + } |
| 41 | + |
| 42 | + function build_language_select(current_language) { |
| 43 | + var buf = ['<select>']; |
| 44 | + |
| 45 | + $.each(all_languages, function(language, title) { |
| 46 | + if (language == current_language) |
| 47 | + buf.push('<option value="' + language + '" selected="selected">' + |
| 48 | + all_languages[current_language] + '</option>'); |
| 49 | + else |
| 50 | + buf.push('<option value="' + language + '">' + title + '</option>'); |
| 51 | + }); |
| 52 | + buf.push('</select>'); |
| 53 | + return buf.join(''); |
| 54 | + } |
| 55 | + |
| 56 | + function navigate_to_first_existing(urls) { |
| 57 | + // Navigate to the first existing URL in urls. |
| 58 | + var url = urls.shift(); |
| 59 | + if (urls.length == 0) { |
| 60 | + window.location.href = url; |
| 61 | + return; |
| 62 | + } |
| 63 | + $.ajax({ |
| 64 | + url: url, |
| 65 | + success: function() { |
| 66 | + window.location.href = url; |
| 67 | + }, |
| 68 | + error: function() { |
| 69 | + navigate_to_first_existing(urls); |
| 70 | + } |
| 71 | + }); |
| 72 | + } |
| 73 | + |
| 74 | + function on_version_switch() { |
| 75 | + var selected_version = $(this).children('option:selected').attr('value') + '/'; |
| 76 | + var url = window.location.href; |
| 77 | + var current_language = language_segment_from_url(url); |
| 78 | + var current_version = version_segment_in_url(url); |
| 79 | + var new_url = url.replace('.org/' + current_language + current_version, |
| 80 | + '.org/' + current_language + selected_version); |
| 81 | + if (new_url != url) { |
| 82 | + navigate_to_first_existing([ |
| 83 | + new_url, |
| 84 | + url.replace('.org/' + current_language + current_version, |
| 85 | + '.org/' + selected_version), |
| 86 | + 'https://docs.python.org/' + current_language + selected_version, |
| 87 | + 'https://docs.python.org/' + selected_version, |
| 88 | + 'https://docs.python.org/' |
| 89 | + ]); |
| 90 | + } |
| 91 | + } |
| 92 | + |
| 93 | + function on_language_switch() { |
| 94 | + var selected_language = $(this).children('option:selected').attr('value') + '/'; |
| 95 | + var url = window.location.href; |
| 96 | + var current_language = language_segment_from_url(url); |
| 97 | + var current_version = version_segment_in_url(url); |
| 98 | + if (selected_language == 'en/') // Special 'default' case for english. |
| 99 | + selected_language = ''; |
| 100 | + var new_url = url.replace('.org/' + current_language + current_version, |
| 101 | + '.org/' + selected_language + current_version); |
| 102 | + if (new_url != url) { |
| 103 | + navigate_to_first_existing([ |
| 104 | + new_url, |
| 105 | + 'https://docs.python.org/' |
| 106 | + ]); |
| 107 | + } |
| 108 | + } |
| 109 | + |
| 110 | + // Returns the path segment of the language as a string, like 'fr/' |
| 111 | + // or '' if not found. |
| 112 | + function language_segment_from_url(url) { |
| 113 | + var language_regexp = '\.org/([a-z]{2}(?:-[a-z]{2})?/)'; |
| 114 | + var match = url.match(language_regexp); |
| 115 | + if (match !== null) |
| 116 | + return match[1]; |
| 117 | + return ''; |
| 118 | + } |
| 119 | + |
| 120 | + // Returns the path segment of the version as a string, like '3.6/' |
| 121 | + // or '' if not found. |
| 122 | + function version_segment_in_url(url) { |
| 123 | + var language_segment = '(?:[a-z]{2}(?:-[a-z]{2})?/)'; |
| 124 | + var version_segment = '(?:(?:' + version_regexs.join('|') + ')/)'; |
| 125 | + var version_regexp = '\\.org/' + language_segment + '?(' + version_segment + ')'; |
| 126 | + var match = url.match(version_regexp); |
| 127 | + if (match !== null) |
| 128 | + return match[1]; |
| 129 | + return '' |
| 130 | + } |
| 131 | + |
| 132 | + $(document).ready(function() { |
| 133 | + var release = DOCUMENTATION_OPTIONS.VERSION; |
| 134 | + var language_segment = language_segment_from_url(window.location.href); |
| 135 | + var current_language = language_segment.replace(/\/+$/g, '') || 'en'; |
| 136 | + var version = release.substr(0, 3); |
| 137 | + var version_select = build_version_select(version, release); |
| 138 | + |
| 139 | + $('.version_switcher_placeholder').html(version_select); |
| 140 | + $('.version_switcher_placeholder select').bind('change', on_version_switch); |
| 141 | + |
| 142 | + var language_select = build_language_select(current_language); |
| 143 | + |
| 144 | + $('.language_switcher_placeholder').html(language_select); |
| 145 | + $('.language_switcher_placeholder select').bind('change', on_language_switch); |
| 146 | + }); |
| 147 | +})(); |
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