Fix and improve repo visibility checkbox when FORCE_PRIVATE is on (#3786)

This was [implemented](022820103d) almost 10 years ago in Gogs.

It was using `readonly` attribute instead of `disabled` on checkbox which was doing nothing. According to [MDN](https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/readonly), `readonly` attribute is not applicable to checkbox inputs. This bug was reported by mrwusel in Matrix room.
Fork page that has similar UI feature did not have this bug.

- replace `readonly` with `disabled`
- do not put info about the restriction directly into the checkbox title

### Before
![image](/attachments/6adaf1a3-6e28-416a-ac85-aa6e570e438d)

### After
![image](/attachments/3590b02b-3c83-4864-bae8-ff1a6a56b2b0)

### In other case
![image](/attachments/7f49d84d-5b3a-43a1-b09c-fb6089c1fb5e)

Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/3786
Reviewed-by: Earl Warren <earl-warren@noreply.codeberg.org>

templates/repo/create.tmpl

@@ -49,14 +49,17 @@
 					<div class="inline field">
 						<label>{{ctx.Locale.Tr "repo.visibility"}}</label>
 						<div class="ui checkbox">
-							{{if .IsForcedPrivate}}
-								<input name="private" type="checkbox" checked readonly>
-								<label>{{ctx.Locale.Tr "repo.visibility_helper_forced"}}</label>
-							{{else}}
-								<input name="private" type="checkbox" {{if .private}}checked{{end}}>
-								<label>{{ctx.Locale.Tr "repo.visibility_helper"}}</label>
-							{{end}}
+							<input name="private" type="checkbox"
+								{{if .IsForcedPrivate}}
+									checked disabled
+								{{else}}
+									{{if .private}}checked{{end}}
+								{{end}}>
+							<label>{{ctx.Locale.Tr "repo.visibility_helper"}}</label>
 						</div>
+						{{if .IsForcedPrivate}}
+							<span class="help">{{ctx.Locale.Tr "repo.visibility_helper_forced"}}</span>
+						{{end}}
 						<span class="help">{{ctx.Locale.Tr "repo.visibility_description"}}</span>
 					</div>
 					<div class="inline field {{if .Err_Description}}error{{end}}">

templates/repo/migrate/codebase.tmpl

@@ -88,14 +88,18 @@
 					<div class="inline field">
 						<label>{{ctx.Locale.Tr "repo.visibility"}}</label>
 						<div class="ui checkbox">
-							{{if .IsForcedPrivate}}
-								<input name="private" type="checkbox" checked readonly>
-								<label>{{ctx.Locale.Tr "repo.visibility_helper_forced"}}</label>
-							{{else}}
-								<input name="private" type="checkbox" {{if .private}}checked{{end}}>
-								<label>{{ctx.Locale.Tr "repo.visibility_helper"}}</label>
-							{{end}}
+							<input name="private" type="checkbox"
+								{{if .IsForcedPrivate}}
+									checked disabled
+								{{else}}
+									{{if .private}}checked{{end}}
+								{{end}}>
+							<label>{{ctx.Locale.Tr "repo.visibility_helper"}}</label>
 						</div>
+						{{if .IsForcedPrivate}}
+							<span class="help">{{ctx.Locale.Tr "repo.visibility_helper_forced"}}</span>
+						{{end}}
+						<span class="help">{{ctx.Locale.Tr "repo.visibility_description"}}</span>
 					</div>
 					<div class="inline field {{if .Err_Description}}error{{end}}">
 						<label for="description">{{ctx.Locale.Tr "repo.repo_desc"}}</label>

templates/repo/migrate/git.tmpl

@@ -62,14 +62,18 @@
 					<div class="inline field">
 						<label>{{ctx.Locale.Tr "repo.visibility"}}</label>
 						<div class="ui checkbox">
-							{{if .IsForcedPrivate}}
-								<input name="private" type="checkbox" checked readonly>
-								<label>{{ctx.Locale.Tr "repo.visibility_helper_forced"}}</label>
-							{{else}}
-								<input name="private" type="checkbox" {{if .private}}checked{{end}}>
-								<label>{{ctx.Locale.Tr "repo.visibility_helper"}}</label>
-							{{end}}
+							<input name="private" type="checkbox"
+								{{if .IsForcedPrivate}}
+									checked disabled
+								{{else}}
+									{{if .private}}checked{{end}}
+								{{end}}>
+							<label>{{ctx.Locale.Tr "repo.visibility_helper"}}</label>
 						</div>
+						{{if .IsForcedPrivate}}
+							<span class="help">{{ctx.Locale.Tr "repo.visibility_helper_forced"}}</span>
+						{{end}}
+						<span class="help">{{ctx.Locale.Tr "repo.visibility_description"}}</span>
 					</div>
 					<div class="inline field {{if .Err_Description}}error{{end}}">
 						<label for="description">{{ctx.Locale.Tr "repo.repo_desc"}}</label>

templates/repo/migrate/gitbucket.tmpl

@@ -104,14 +104,18 @@
 					<div class="inline field">
 						<label>{{ctx.Locale.Tr "repo.visibility"}}</label>
 						<div class="ui checkbox">
-							{{if .IsForcedPrivate}}
-								<input name="private" type="checkbox" checked readonly>
-								<label>{{ctx.Locale.Tr "repo.visibility_helper_forced"}}</label>
-							{{else}}
-								<input name="private" type="checkbox" {{if .private}}checked{{end}}>
-								<label>{{ctx.Locale.Tr "repo.visibility_helper"}}</label>
-							{{end}}
+							<input name="private" type="checkbox"
+								{{if .IsForcedPrivate}}
+									checked disabled
+								{{else}}
+									{{if .private}}checked{{end}}
+								{{end}}>
+							<label>{{ctx.Locale.Tr "repo.visibility_helper"}}</label>
 						</div>
+						{{if .IsForcedPrivate}}
+							<span class="help">{{ctx.Locale.Tr "repo.visibility_helper_forced"}}</span>
+						{{end}}
+						<span class="help">{{ctx.Locale.Tr "repo.visibility_description"}}</span>
 					</div>
 					<div class="inline field {{if .Err_Description}}error{{end}}">
 						<label for="description">{{ctx.Locale.Tr "repo.repo_desc"}}</label>

templates/repo/migrate/gitea.tmpl

@@ -100,14 +100,18 @@
 					<div class="inline field">
 						<label>{{ctx.Locale.Tr "repo.visibility"}}</label>
 						<div class="ui checkbox">
-							{{if .IsForcedPrivate}}
-								<input name="private" type="checkbox" checked readonly>
-								<label>{{ctx.Locale.Tr "repo.visibility_helper_forced"}}</label>
-							{{else}}
-								<input name="private" type="checkbox" {{if .private}} checked{{end}}>
-								<label>{{ctx.Locale.Tr "repo.visibility_helper"}}</label>
-							{{end}}
+							<input name="private" type="checkbox"
+								{{if .IsForcedPrivate}}
+									checked disabled
+								{{else}}
+									{{if .private}}checked{{end}}
+								{{end}}>
+							<label>{{ctx.Locale.Tr "repo.visibility_helper"}}</label>
 						</div>
+						{{if .IsForcedPrivate}}
+							<span class="help">{{ctx.Locale.Tr "repo.visibility_helper_forced"}}</span>
+						{{end}}
+						<span class="help">{{ctx.Locale.Tr "repo.visibility_description"}}</span>
 					</div>
 					<div class="inline field {{if .Err_Description}}error{{end}}">
 						<label for="description">{{ctx.Locale.Tr "repo.repo_desc"}}</label>

templates/repo/migrate/github.tmpl

@@ -102,14 +102,18 @@
 					<div class="inline field">
 						<label>{{ctx.Locale.Tr "repo.visibility"}}</label>
 						<div class="ui checkbox">
-							{{if .IsForcedPrivate}}
-								<input name="private" type="checkbox" checked readonly>
-								<label>{{ctx.Locale.Tr "repo.visibility_helper_forced"}}</label>
-							{{else}}
-								<input name="private" type="checkbox" {{if .private}}checked{{end}}>
-								<label>{{ctx.Locale.Tr "repo.visibility_helper"}}</label>
-							{{end}}
+							<input name="private" type="checkbox"
+								{{if .IsForcedPrivate}}
+									checked disabled
+								{{else}}
+									{{if .private}}checked{{end}}
+								{{end}}>
+							<label>{{ctx.Locale.Tr "repo.visibility_helper"}}</label>
 						</div>
+						{{if .IsForcedPrivate}}
+							<span class="help">{{ctx.Locale.Tr "repo.visibility_helper_forced"}}</span>
+						{{end}}
+						<span class="help">{{ctx.Locale.Tr "repo.visibility_description"}}</span>
 					</div>
 					<div class="inline field {{if .Err_Description}}error{{end}}">
 						<label for="description">{{ctx.Locale.Tr "repo.repo_desc"}}</label>

templates/repo/migrate/gitlab.tmpl

@@ -99,14 +99,18 @@
 					<div class="inline field">
 						<label>{{ctx.Locale.Tr "repo.visibility"}}</label>
 						<div class="ui checkbox">
-							{{if .IsForcedPrivate}}
-								<input name="private" type="checkbox" checked readonly>
-								<label>{{ctx.Locale.Tr "repo.visibility_helper_forced"}}</label>
-							{{else}}
-								<input name="private" type="checkbox" {{if .private}}checked{{end}}>
-								<label>{{ctx.Locale.Tr "repo.visibility_helper"}}</label>
-							{{end}}
+							<input name="private" type="checkbox"
+								{{if .IsForcedPrivate}}
+									checked disabled
+								{{else}}
+									{{if .private}}checked{{end}}
+								{{end}}>
+							<label>{{ctx.Locale.Tr "repo.visibility_helper"}}</label>
 						</div>
+						{{if .IsForcedPrivate}}
+							<span class="help">{{ctx.Locale.Tr "repo.visibility_helper_forced"}}</span>
+						{{end}}
+						<span class="help">{{ctx.Locale.Tr "repo.visibility_description"}}</span>
 					</div>
 					<div class="inline field {{if .Err_Description}}error{{end}}">
 						<label for="description">{{ctx.Locale.Tr "repo.repo_desc"}}</label>

templates/repo/migrate/gogs.tmpl

@@ -102,14 +102,18 @@
 					<div class="inline field">
 						<label>{{ctx.Locale.Tr "repo.visibility"}}</label>
 						<div class="ui checkbox">
-							{{if .IsForcedPrivate}}
-								<input name="private" type="checkbox" checked readonly>
-								<label>{{ctx.Locale.Tr "repo.visibility_helper_forced"}}</label>
-							{{else}}
-								<input name="private" type="checkbox" {{if .private}} checked{{end}}>
-								<label>{{ctx.Locale.Tr "repo.visibility_helper"}}</label>
-							{{end}}
+							<input name="private" type="checkbox"
+								{{if .IsForcedPrivate}}
+									checked disabled
+								{{else}}
+									{{if .private}}checked{{end}}
+								{{end}}>
+							<label>{{ctx.Locale.Tr "repo.visibility_helper"}}</label>
 						</div>
+						{{if .IsForcedPrivate}}
+							<span class="help">{{ctx.Locale.Tr "repo.visibility_helper_forced"}}</span>
+						{{end}}
+						<span class="help">{{ctx.Locale.Tr "repo.visibility_description"}}</span>
 					</div>
 					<div class="inline field {{if .Err_Description}}error{{end}}">
 						<label for="description">{{ctx.Locale.Tr "repo.repo_desc"}}</label>

templates/repo/migrate/onedev.tmpl

@@ -88,14 +88,18 @@
 					<div class="inline field">
 						<label>{{ctx.Locale.Tr "repo.visibility"}}</label>
 						<div class="ui checkbox">
-							{{if .IsForcedPrivate}}
-								<input name="private" type="checkbox" checked readonly>
-								<label>{{ctx.Locale.Tr "repo.visibility_helper_forced"}}</label>
-							{{else}}
-								<input name="private" type="checkbox" {{if .private}}checked{{end}}>
-								<label>{{ctx.Locale.Tr "repo.visibility_helper"}}</label>
-							{{end}}
+							<input name="private" type="checkbox"
+								{{if .IsForcedPrivate}}
+									checked disabled
+								{{else}}
+									{{if .private}}checked{{end}}
+								{{end}}>
+							<label>{{ctx.Locale.Tr "repo.visibility_helper"}}</label>
 						</div>
+						{{if .IsForcedPrivate}}
+							<span class="help">{{ctx.Locale.Tr "repo.visibility_helper_forced"}}</span>
+						{{end}}
+						<span class="help">{{ctx.Locale.Tr "repo.visibility_description"}}</span>
 					</div>
 					<div class="inline field {{if .Err_Description}}error{{end}}">
 						<label for="description">{{ctx.Locale.Tr "repo.repo_desc"}}</label>