129 lines
5.5 KiB
Markdown
129 lines
5.5 KiB
Markdown
# Grav LangSwitcher Plugin
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![LangSwitcher](assets/readme_1.png)
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`LangSwitcher` is a [Grav](http://github.com/getgrav/grav) plugin that provides native language text links to switch between [Multiple Languages](http://learn.getgrav.org/content/multi-language) in Grav **0.9.30** or greater.
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# Installation
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Installing the LangSwitcher plugin can be done in one of two ways. Our GPM (Grav Package Manager) installation method enables you to quickly and easily install the plugin with a simple terminal command, while the manual method enables you to do so via a zip file.
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## GPM Installation (Preferred)
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The simplest way to install this plugin is via the [Grav Package Manager (GPM)](http://learn.getgrav.org/advanced/grav-gpm) through your system's Terminal (also called the command line). From the root of your Grav install type:
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bin/gpm install langswitcher
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This will install the LangSwitcher plugin into your `/user/plugins` directory within Grav. Its files can be found under `/your/site/grav/user/plugins/langswitcher`.
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## Manual Installation
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To install this plugin, just download the zip version of this repository and unzip it under `/your/site/grav/user/plugins`. Then, rename the folder to `langswitcher`. You can find these files either on [GitHub](https://github.com/getgrav/grav-plugin-langswitcher) or via [GetGrav.org](http://getgrav.org/downloads/plugins#extras).
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You should now have all the plugin files under
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/your/site/grav/user/plugins/langswitcher
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# Usage
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The `langswitcher` plugin doesn't require any configuration. You do however need to add the included Twig partials template into your own theme somewhere you want the available languages to be displayed.
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```twig
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{% include 'partials/langswitcher.html.twig' %}
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```
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Something you might want to do is to override the look and feel of the langswitcher, and with Grav it is super easy.
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Copy the template file [langswitcher.html.twig](templates/partials/langswitcher.html.twig) into the `templates` folder of your custom theme:
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```
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/your/site/grav/user/themes/custom-theme/templates/partials/langswitcher.html.twig
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```
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You can now edit the override and tweak it however you prefer.
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## Usage of the `hreflang` partial
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A second template is available for `hreflang` annotations in the header of the page. In order to emit language annotations for the available languages of a page you need to add the corrsponding Twig partial template into the `<head>` section of your page, which can typically be found in `base.html.twig`:
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```twkg
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{% include 'partials/langswitcher.hreflang.html.twig' %}
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```
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This will generate something like:
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```html
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<link rel="alternate" href="http://example.com/en" hreflang="en" />
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<link rel="alternate" href="http://example.com/de" hreflang="de" />
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<link rel="alternate" href="http://example.com/zh-cn" hreflang="zh-cn" />
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```
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# Updating
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As development for the LangSwitcher plugin continues, new versions may become available that add additional features and functionality, improve compatibility with newer Grav releases, and generally provide a better user experience. Updating LangSwitcher is easy, and can be done through Grav's GPM system, as well as manually.
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## GPM Update (Preferred)
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The simplest way to update this plugin is via the [Grav Package Manager (GPM)](http://learn.getgrav.org/advanced/grav-gpm). You can do this with this by navigating to the root directory of your Grav install using your system's Terminal (also called command line) and typing the following:
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bin/gpm update langswitcher
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This command will check your Grav install to see if your LangSwitcher plugin is due for an update. If a newer release is found, you will be asked whether or not you wish to update. To continue, type `y` and hit enter. The plugin will automatically update and clear Grav's cache.
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> Note: Any changes you have made to any of the files listed under this directory will also be removed and replaced by the new set. Any files located elsewhere (for example a YAML settings file placed in `user/config/plugins`) will remain intact.
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## Configuration
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Simply copy the `user/plugins/langswitcher/langswitcher.yaml` into `user/config/plugins/langswitcher.yaml` and make your modifications.
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```yaml
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enabled: true
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built_in_css: true
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translated_urls: true
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untranslated_pages_behavior: none
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language_display: long
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```
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Options are pretty self explanatory.
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## Redirecting after switching language
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To have Grav redirect to the default page route after switching language, you must add the following configuration to `user/config/system.yaml`
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```yaml
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pages:
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redirect_default_route: true
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```
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## Customization
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The default format for the displaying of the languages is to use the native language names in a **long** format (e.g. `English`, `Deutsch`, `Français`). However, you can change the default output to use **short** names (e.g. `EN`, `DE`, `FR`).
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This can be configured via the `langswitcher.yaml` configuration file:
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```yaml
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language_display: long # long | short are the valid options
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```
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You can also pass the format in directly via the Twig include:
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```twig
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{% include 'partials/langswitcher.hreflang.html.twig' with {display_format: 'short'} %}
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```
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Also you can override the two Twig partials that control the actual display of the **long** and **short** output, by copying the partial int your theme's `templates/partials/` folder and modifying:
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```twig
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# templates/partials/langswitcher-long.html.twig
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{{ native_name(language)|capitalize }}
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```
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and
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```twig
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# templates/partials/langswitcher-short.html.twig
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{{ language|upper }}
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```
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