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Yarden Shoham 3e8414179c
Introduce htmx and use it to avoid full page load on `Subscribe` and `Follow` (#28908)
- Closes https://github.com/go-gitea/gitea/issues/28880

This change introduces htmx with the hope we could use it to make Gitea
more reactive while keeping our "HTML rendered on the server" approach.

- Add `htmx.js` that imports `htmx.org` and initializes error toasts
- Place `hx-headers='{"x-csrf-token": "{{.CsrfToken}}"}'` on the
`<body>` tag so every request that htmx sends is authenticated
- Place `hx-swap="outerHTML"` on the `<body>` tag so the response of
each htmx request replaces the tag it targets (as opposed to its inner
content)
- Place `hx-push-url="false"` on the `<body>` tag so no changes to the
URL happen in `<form>` tags
- Add the `is-loading` class during request

### Error toasts in action


![errors](https://github.com/go-gitea/gitea/assets/20454870/181a1beb-1cb8-4858-abe8-fa1fc3f5b8f3)

## Don't do a full page load when clicking the subscribe button
- Refactor the form around the subscribe button into its own template
- Use htmx to perform the form submission
- `hx-boost="true"` to prevent the default form submission behavior of a
full page load
- `hx-sync="this:replace"` to replace the current request (in case the
button is clicked again before the response is returned)
  - `hx-target="this"` to replace the form tag with the new form tag
- Change the backend response to return a `<form>` tag instead of a
redirect to the issue page

### Before


![subscribe_before](https://github.com/go-gitea/gitea/assets/20454870/cb2439a2-c3c0-425c-8d3c-5d646b1cdc28)

### After


![subscribe_after](https://github.com/go-gitea/gitea/assets/20454870/6fcd77d8-7b11-40b0-af4f-b152aaad787c)

## Don't do a full page load when clicking the follow button
- Use htmx to perform the button request
- `hx-post="{{.ContextUser.HomeLink}}?action=follow"` to send a POST
request to follow the user
- `hx-target="#profile-avatar-card"` to target the card div for
replacement
- `hx-indicator="#profile-avatar-card"` to place the loading indicator
on the card
- Change the backend response to return a `<div>` tag (the card) instead
of a redirect to the user page

### Before


![follow_before](https://github.com/go-gitea/gitea/assets/20454870/a210b643-6e74-4ff9-8e61-d658c62edf1f)

### After


![follow_after](https://github.com/go-gitea/gitea/assets/20454870/5bb19ae9-0d59-4ae3-b538-4c83334e4722)

---------

Signed-off-by: Yarden Shoham <git@yardenshoham.com>
Co-authored-by: 6543 <m.huber@kithara.com>
Co-authored-by: Giteabot <teabot@gitea.io>
2024-01-30 15:45:54 +01:00
..
add_reaction.tmpl Improve and fix bugs surrounding reactions (#24760) 2023-05-28 01:34:18 +00:00
attachments.tmpl Always use `ctx.Locale.Tr` inside templates (#27231) 2023-09-25 08:56:50 +00:00
comments.tmpl Don't reload timeline page when (un)resolving or replying conversation (#28654) 2024-01-24 03:26:28 +00:00
comments_delete_time.tmpl Always use `ctx.Locale.Tr` inside templates (#27231) 2023-09-25 08:56:50 +00:00
context_menu.tmpl Always use `ctx.Locale.Tr` inside templates (#27231) 2023-09-25 08:56:50 +00:00
conversation.tmpl Don't reload timeline page when (un)resolving or replying conversation (#28654) 2024-01-24 03:26:28 +00:00
pull.tmpl Add `Hide/Show all checks` button to commit status check (#26284) 2023-11-02 14:49:02 +00:00
pull_merge_instruction.tmpl Improve pull request command line instructions (#27778) 2023-10-25 15:01:31 +00:00
reactions.tmpl Add non-JS fallback for reaction tooltips (#28785) 2024-01-15 09:42:59 +08:00
reference_issue_dialog.tmpl Always use `ctx.Locale.Tr` inside templates (#27231) 2023-09-25 08:56:50 +00:00
show_role.tmpl Add `member`, `collaborator`, `contributor`, and `first-time contributor` roles and tooltips (#26658) 2023-08-24 13:06:17 +08:00
sidebar.tmpl Introduce htmx and use it to avoid full page load on `Subscribe` and `Follow` (#28908) 2024-01-30 15:45:54 +01:00
update_branch_by_merge.tmpl Always use `ctx.Locale.Tr` inside templates (#27231) 2023-09-25 08:56:50 +00:00
watching.tmpl Introduce htmx and use it to avoid full page load on `Subscribe` and `Follow` (#28908) 2024-01-30 15:45:54 +01:00