| 1 | # GNU MediaGoblin -- federated, autonomous media hosting |
| 2 | # Copyright (C) 2011, 2012 MediaGoblin contributors. See AUTHORS. |
| 3 | # |
| 4 | # This program is free software: you can redistribute it and/or modify |
| 5 | # it under the terms of the GNU Affero General Public License as published by |
| 6 | # the Free Software Foundation, either version 3 of the License, or |
| 7 | # (at your option) any later version. |
| 8 | # |
| 9 | # This program is distributed in the hope that it will be useful, |
| 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | # GNU Affero General Public License for more details. |
| 13 | # |
| 14 | # You should have received a copy of the GNU Affero General Public License |
| 15 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 16 | |
| 17 | """ |
| 18 | """ |
| 19 | |
| 20 | |
| 21 | import pkg_resources |
| 22 | import os |
| 23 | |
| 24 | from configobj import ConfigObj |
| 25 | |
| 26 | |
| 27 | BUILTIN_THEME_DIR = pkg_resources.resource_filename('mediagoblin', 'themes') |
| 28 | |
| 29 | |
| 30 | def themedata_for_theme_dir(name, theme_dir): |
| 31 | """ |
| 32 | Given a theme directory, extract important theme information. |
| 33 | """ |
| 34 | # open config |
| 35 | config = ConfigObj(os.path.join(theme_dir, 'theme.ini')).get('theme', {}) |
| 36 | |
| 37 | templates_dir = os.path.join(theme_dir, 'templates') |
| 38 | if not os.path.exists(templates_dir): |
| 39 | templates_dir = None |
| 40 | |
| 41 | assets_dir = os.path.join(theme_dir, 'assets') |
| 42 | if not os.path.exists(assets_dir): |
| 43 | assets_dir = None |
| 44 | |
| 45 | themedata = { |
| 46 | 'name': config.get('name', name), |
| 47 | 'description': config.get('description'), |
| 48 | 'licensing': config.get('licensing'), |
| 49 | 'dir': theme_dir, |
| 50 | 'templates_dir': templates_dir, |
| 51 | 'assets_dir': assets_dir, |
| 52 | 'config': config} |
| 53 | |
| 54 | return themedata |
| 55 | |
| 56 | |
| 57 | def register_themes(app_config, builtin_dir=BUILTIN_THEME_DIR): |
| 58 | """ |
| 59 | Register all themes relevant to this application. |
| 60 | """ |
| 61 | registry = {} |
| 62 | |
| 63 | def _install_themes_in_dir(directory): |
| 64 | for themedir in os.listdir(directory): |
| 65 | abs_themedir = os.path.join(directory, themedir) |
| 66 | if not os.path.isdir(abs_themedir): |
| 67 | continue |
| 68 | |
| 69 | themedata = themedata_for_theme_dir(themedir, abs_themedir) |
| 70 | registry[themedir] = themedata |
| 71 | |
| 72 | # Built-in themes |
| 73 | if os.path.exists(builtin_dir): |
| 74 | _install_themes_in_dir(builtin_dir) |
| 75 | |
| 76 | # Installed themes |
| 77 | theme_install_dir = app_config.get('theme_install_dir') |
| 78 | if theme_install_dir and os.path.exists(theme_install_dir): |
| 79 | _install_themes_in_dir(theme_install_dir) |
| 80 | |
| 81 | current_theme_name = app_config.get('theme') |
| 82 | try: |
| 83 | current_theme = registry[current_theme_name] |
| 84 | except KeyError: |
| 85 | current_theme = None |
| 86 | |
| 87 | return registry, current_theme |