tablo-core 0.8.0

The core toolkit types for Tablo, a server-rendered admin toolkit on Topcoat and Toasty.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155

//! The top bar's trail: the sidebar entry the request is under, then where in it.

use tablo_ui::{
    breadcrumb, breadcrumb_item, breadcrumb_link, breadcrumb_list, breadcrumb_page,
    breadcrumb_separator,
};
use topcoat::{
    context::Cx,
    view::{BoxView, ViewExt, view},
};

use crate::{
    Text,
    navigation::{NavigationItem, current_index},
};

/// One step of a trail: its label, and its link unless it is the page the request is on.
#[derive(Debug, PartialEq, Eq)]
pub(super) struct Crumb {
    pub(super) label: Text,
    pub(super) href: Option<String>,
}

impl Crumb {
    fn link(label: impl Into<Text>, href: impl Into<String>) -> Self {
        Self {
            label: label.into(),
            href: Some(href.into()),
        }
    }

    fn here(label: impl Into<Text>) -> Self {
        Self {
            label: label.into(),
            href: None,
        }
    }
}

/// The trail to `current_path` under `current_query`: the sidebar entry it is under, as the
/// sidebar marks it, then the page within the entry. Empty when no entry holds the path.
///
/// Under a resource's list, one of `resource_lists`, a path names a resource's page:
/// `/admin/posts` is `Blog Posts`; `/admin/posts/-/create` adds `Create`, `/admin/posts/7`
/// adds `View`, and `/admin/posts/7/edit` adds `Edit`. A deeper path under a record links the
/// record's `View`, then names its last segment. Under any other entry, the home page's
/// included, a deeper path names its last segment: `/admin/reports` is `Dashboard › Reports`.
pub(super) fn trail(
    nav_items: &[NavigationItem],
    resource_lists: &[&str],
    current_path: &str,
    current_query: &str,
) -> Vec<Crumb> {
    let Some((item, path)) = entry(nav_items, current_path, current_query) else {
        return Vec::new();
    };
    let rest: Vec<&str> = current_path[path.len()..]
        .split('/')
        .filter(|segment| !segment.is_empty())
        .collect();
    let entry = || Crumb::link(item.label.clone(), path);
    if !resource_lists.contains(&path) {
        return match rest.last() {
            None => vec![Crumb::here(item.label.clone())],
            Some(last) => vec![entry(), Crumb::here(humanize(last))],
        };
    }
    match rest.as_slice() {
        [] => vec![Crumb::here(item.label.clone())],
        ["-", "create"] => vec![entry(), Crumb::here(Text::message("tablo-crumb-create"))],
        ["-", action] => vec![entry(), Crumb::here(humanize(action))],
        [_record] => vec![entry(), Crumb::here(Text::message("tablo-crumb-view"))],
        [_record, "edit"] => vec![entry(), Crumb::here(Text::message("tablo-crumb-edit"))],
        [record, .., last] => vec![
            entry(),
            Crumb::link(
                Text::message("tablo-crumb-view"),
                format!("{path}/{record}"),
            ),
            Crumb::here(humanize(last)),
        ],
    }
}

/// The trail to a page that failed at `current_path` under `current_query`: the sidebar entry it
/// is under, then `label`, the failure.
pub(super) fn failed(
    nav_items: &[NavigationItem],
    current_path: &str,
    current_query: &str,
    label: impl Into<Text>,
) -> Vec<Crumb> {
    let mut crumbs: Vec<Crumb> = entry(nav_items, current_path, current_query)
        .map(|(item, path)| Crumb::link(item.label.clone(), path))
        .into_iter()
        .collect();
    crumbs.push(Crumb::here(label));
    crumbs
}

/// The sidebar entry the request is under, as the sidebar marks it, with its path.
fn entry<'a>(
    nav_items: &'a [NavigationItem],
    current_path: &str,
    current_query: &str,
) -> Option<(&'a NavigationItem, &'a str)> {
    let item = &nav_items[current_index(nav_items, current_path, current_query)?];
    Some((item, item.path()?))
}

/// A path segment as a label: `audit-log` reads `Audit log`, and `Q1%20sales` reads `Q1 sales`.
fn humanize(segment: &str) -> String {
    let decoded = percent_encoding::percent_decode_str(segment).decode_utf8_lossy();
    let words = decoded.replace(['-', '_'], " ");
    let mut chars = words.chars();
    chars
        .next()
        .map(|first| first.to_uppercase().chain(chars).collect())
        .unwrap_or_default()
}

/// Render `crumbs`, or nothing for an empty trail. Below `sm` the top bar has no room for it.
pub(super) fn render(cx: &Cx, crumbs: Vec<Crumb>) -> BoxView<'_> {
    if crumbs.is_empty() {
        return ().boxed();
    }
    let last = crumbs.len() - 1;
    view! {
        cx =>
        breadcrumb(
            attrs: topcoat::view::attributes! { class="max-sm:hidden" },
            breadcrumb_list(
                for (index, crumb) in crumbs.into_iter().enumerate() {
                    breadcrumb_item(
                        if let Some(href) = crumb.href {
                            breadcrumb_link(
                                attrs: crate::navigation::runtime_link(cx, &href),
                                (crumb.label.localize(cx))
                            )
                        } else {
                            breadcrumb_page((crumb.label.localize(cx)))
                        }
                    )
                    if index < last {
                        breadcrumb_separator()
                    }
                }
            )
        )
    }
    .boxed()
}

#[cfg(test)]
mod tests;