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

/*
 * render/html/element/image.rs
 *
 * ftml - Library to parse Wikidot text
 * Copyright (C) 2019-2022 Wikijump Team
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

use super::prelude::*;
use crate::tree::{AttributeMap, FloatAlignment, ImageSource, LinkLocation};
use crate::url::normalize_link;

pub fn render_image(
    ctx: &mut HtmlContext,
    source: &ImageSource,
    link: &Option<LinkLocation>,
    alignment: Option<FloatAlignment>,
    attributes: &AttributeMap,
) {
    info!(
        "Rendering image element (source '{}', link {}, alignment {}, float {})",
        source.name(),
        match link {
            Some(link) => format!("{link:?}"),
            None => str!("<none>"),
        },
        match alignment {
            Some(image) => image.align.name(),
            None => "<default>",
        },
        match alignment {
            Some(image) => image.float,
            None => false,
        },
    );

    let source_url = ctx
        .handle()
        .get_image_link(source, ctx.info(), ctx.settings());

    match source_url {
        // Found URL
        Some(url) => render_image_element(ctx, &url, link, alignment, attributes),

        // Missing or error
        None => render_image_missing(ctx),
    }
}

fn render_image_element(
    ctx: &mut HtmlContext,
    url: &str,
    link: &Option<LinkLocation>,
    alignment: Option<FloatAlignment>,
    attributes: &AttributeMap,
) {
    debug!("Found URL, rendering image (value '{url}')");

    let (space, align_class) = match alignment {
        Some(align) => (" ", align.html_class()),
        None => ("", ""),
    };

    ctx.html()
        .div()
        .attr(attr!(
            "class" => "wj-image-container" space align_class,
        ))
        .inner(|ctx| {
            let build_image = |ctx: &mut HtmlContext| {
                ctx.html().img().attr(attr!(
                    "class" => "wj-image",
                    "src" => url,
                    "crossorigin";;
                    attributes
                ));
            };

            match link {
                Some(link) => {
                    let url = normalize_link(link, ctx.handle());
                    ctx.html()
                        .a()
                        .attr(attr!("href" => &url))
                        .inner(build_image);
                }
                None => build_image(ctx),
            };
        });
}

fn render_image_missing(ctx: &mut HtmlContext) {
    debug!("Image URL unresolved, missing or error");

    let message = ctx
        .handle()
        .get_message(ctx.language(), "image-context-bad");

    ctx.html()
        .div()
        .attr(attr!("class" => "wj-error-block"))
        .contents(message);
}