## TLDR
* Fix the broken page / broken image problem when click "Install"
* Close#20089
* Fix the Password Hash Algorithm display problem for #22942
* Close#23183
* Close#23184
## Details
### The broken page / broken image problem when click "Install"
(Redirect failed after install gitea #23184)
Before: when click "install", all new requests will fail, because the
server has been restarted. Users just see a broken page with broken
images, sometimes the server is not ready but the user would have been
redirect to "/user/login" page, then the users see a new broken page
(connection refused or something wrong ...)
After: only check InstallLock=true for necessary handlers, and sleep for
a while before restarting the server, then the browser has enough time
to load the "post-install" page. And there is a script to check whether
"/user/login" is ready, the user will only be redirected to the login
page when the server is ready.
### During new instance setup make 'Gitea Base URL' filled from
window.location.origin #20089
If the "app_url" input contains `localhost` (the default value from
config), use current window's location href as the `app_url` (aka
ROOT_URL)
### Fix the Password Hash Algorithm display problem for "Provide the
ability to set password hash algorithm parameters #22942"
Before: the UI shows `pbkdf2$50000$50`
<details>
![image](https://user-images.githubusercontent.com/2114189/221917143-e1e54798-1698-4fee-a18d-00c48081fc39.png)
</details>
After: the UI shows `pbkdf2`
<details>
![image](https://user-images.githubusercontent.com/2114189/221916999-97a15be8-2ebb-4a01-bf93-dac18e354fcc.png)
</details>
### GET data: net::ERR_INVALID_URL #23183
Cause by empty `data:` in `<link rel="manifest"
href="data:{{.ManifestData}}">`
---------
Co-authored-by: Jason Song <i@wolfogre.com>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: techknowlogick <techknowlogick@gitea.io>
Close#22847
This PR:
* introduce Gitea's own `showElem` and related functions
* remove jQuery show/hide
* remove .hide class
* remove inline style=display:none
From now on:
do not use:
* "[hidden]" attribute: it's too weak, can not be applied to an element
with "display: flex"
* ".hidden" class: it has been polluted by Fomantic UI in many cases
* inline style="display: none": it's difficult to tweak
* jQuery's show/hide/toggle: it can not show/hide elements with
"display: xxx !important"
only use:
* this ".gt-hidden" class
* showElem/hideElem/toggleElem functions in "utils/dom.js"
cc: @silverwind , this is the all-in-one PR
* Refactor install page (db type)
* set correct default DB HOST for different DB TYPE
* remove legacy TiDB from documents
* unify the usage of DB TYPE, in code we only use "mysql". "MySQL" is only shown to users for friendly name.
* Gitea can use TiDB via MySQL protocol
Co-authored-by: zeripath <art27@cantab.net>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>