== Background
As part of our explorations in increasing the visibility of the new language switching button, we would like to explore ways to link to the button from the previous location of language switching functionality.
== Design
{F34796182 width=700}
= Acceptance criteria / QA
- [x] The sidebar alert should not show on the main page
- [x] The sidebar alert should show on pages which has a language button
- [x] If there is no language button, do not show the sidebar alert.
- [
x] This should be feature flagged and default to false
== Developer notes
Something like this should suffice:
```
diff --git a/includes/templates/Sidebar.mustache b/includes/templates/Sidebar.mustache
index 3a916ba3e..63a3bf970 100644
--- a/includes/templates/Sidebar.mustache
+++ b/includes/templates/Sidebar.mustache
@@ -21,4 +21,8 @@
{{^is-language-in-header}}
{{#data-portlets.data-languages}}{{>Menu}}{{/data-portlets.data-languages}}
{{/is-language-in-header}}
+ {{#is-language-in-header}}
+ <h2>{{msg-languages}}</h2>
+ <div class="warningbox">{{msg-language-redirect-to-top}}</div>
+ {{/is-language-in-header}}
</div>
```
== Signoff criteria
[x] Create a task to remove the notice ~2 months after full rollout of the new button location - T297237
== QA steps
- [] Navigate to an article page with the config for language button in header and note that the language switching alert notice is in the sidebar by testing with the following local config:
```
$wgVectorLanguageInHeader = [
"logged_in" => true,
"logged_out" => true
];
$wgVectorLanguageAlertInSidebar = [
"logged_in" => true,
"logged_out" => false
];
```
- [] Test different permutations of the above config:
- When `VectorLanguageInHeader['logged_in"]` is true:
- Alert should appear when `VectorLanguageAlertInSidebar['logged_in"]` is true
{F34856462}
- No alert should appear when `VectorLanguageAlertInSidebar['logged_in"]` is false
- When `VectorLanguageInHeader['logged_in"]` is false:
- No alert should appear when `VectorLanguageAlertInSidebar['logged_in"]` is true or false
- When `VectorLanguageInHeader['logged_out"]` is true:
- Alert should appear when `VectorLanguageAlertInSidebar['logged_out"]` is true
- No alert should appear when `VectorLanguageAlertInSidebar['logged_out"]` is false
- When `VectorLanguageInHeader['logged_out"]` is false:
- No alert should appear when `VectorLanguageAlertInSidebar['logged_out"]` is true or false
- [] Test the query parameter `?languagealertinsidebar=1` as override to see the language alert in sidebar in the cases where `VectorLanguageInHeader` is true and `VectorLanguageAlertInSidebar` is false
- [] Navigate to the Main Page and note that the language switching alert notice is not shown when the config is set to show the alert.