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forgejo/routers/web/repo/issue_watch.go
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

63 lines
1.5 KiB
Go

// Copyright 2017 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package repo
import (
"net/http"
"strconv"
issues_model "code.gitea.io/gitea/models/issues"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/log"
)
const (
tplWatching base.TplName = "repo/issue/view_content/watching"
)
// IssueWatch sets issue watching
func IssueWatch(ctx *context.Context) {
issue := GetActionIssue(ctx)
if ctx.Written() {
return
}
if !ctx.IsSigned || (ctx.Doer.ID != issue.PosterID && !ctx.Repo.CanReadIssuesOrPulls(issue.IsPull)) {
if log.IsTrace() {
if ctx.IsSigned {
issueType := "issues"
if issue.IsPull {
issueType = "pulls"
}
log.Trace("Permission Denied: User %-v not the Poster (ID: %d) and cannot read %s in Repo %-v.\n"+
"User in Repo has Permissions: %-+v",
ctx.Doer,
issue.PosterID,
issueType,
ctx.Repo.Repository,
ctx.Repo.Permission)
} else {
log.Trace("Permission Denied: Not logged in")
}
}
ctx.Error(http.StatusForbidden)
return
}
watch, err := strconv.ParseBool(ctx.Req.PostForm.Get("watch"))
if err != nil {
ctx.ServerError("watch is not bool", err)
return
}
if err := issues_model.CreateOrUpdateIssueWatch(ctx, ctx.Doer.ID, issue.ID, watch); err != nil {
ctx.ServerError("CreateOrUpdateIssueWatch", err)
return
}
ctx.Data["Issue"] = issue
ctx.Data["IssueWatch"] = &issues_model.IssueWatch{IsWatching: watch}
ctx.HTML(http.StatusOK, tplWatching)
}