9e83d04f84
Previously, when using `switch_to_locale()` all current loaded text domains were unloaded and added to the `$l10n_unloaded` global. This prevented the just-in-time loading for text domains after a switch. The just-in-time loading was also only possible if the translations were stored in `WP_LANG_DIR`. Both issues have been fixed. * Adds `WP_Textdomain_Registry` to keep track of the language directory paths for all plugins and themes. * Updates all `load_*_textdomain()` functions to store the path in `WP_Textdomain_Registry`. * Adds `$reloadable` parameter to `unload_textdomain()` to define whether a text domain can be loaded just-in-time again. This is used by `WP_Locale_Switcher::load_translations()`. * Extends `_load_textdomain_just_in_time()` to also support text domains of plugins and themes with custom language directories. * Fixes the incorrect `test_plugin_translation_after_switching_locale_twice()` test which should have catch this issue earlier. * Adds a new test plugin/theme to test the loading of translations with a custom language directory. * Deprecates the now unused and private `_get_path_to_translation()` and `_get_path_to_translation_from_lang_dir()` functions. Props yoavf, swissspidy, dd32, ocean90. See #26511. Fixes #39210. git-svn-id: https://develop.svn.wordpress.org/trunk@49236 602fd350-edb4-49c9-b593-d223f7449a82 |
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