slack_blocks_render/
visitor.rs

1use despatma::visitor;
2use slack_morphism::prelude::*;
3
4pub(crate) struct SlackEventBlock {
5    #[allow(dead_code)]
6    pub json_value: serde_json::Value,
7}
8
9pub(crate) struct SlackRichTextBlock {
10    pub json_value: serde_json::Value,
11}
12
13visitor!(
14    #[
15        helper_tmpl = {
16            match slack_block {
17                SlackBlock::Section(section) => visitor.visit_slack_section_block(section),
18                SlackBlock::Header(header) => visitor.visit_slack_header_block(header),
19                SlackBlock::Divider(divider) => visitor.visit_slack_divider_block(divider),
20                SlackBlock::Image(image) => visitor.visit_slack_image_block(image),
21                SlackBlock::Actions(actions) => visitor.visit_slack_actions_block(actions),
22                SlackBlock::Context(context) => visitor.visit_slack_context_block(context),
23                SlackBlock::Input(input) => visitor.visit_slack_input_block(input),
24                SlackBlock::File(file) => visitor.visit_slack_file_block(file),
25                SlackBlock::Video(video) => visitor.visit_slack_video_block(video),
26                SlackBlock::RichText(rich_text_block) => visitor.visit_slack_rich_text_block(&SlackRichTextBlock { json_value: serde_json::to_value(rich_text_block).unwrap_or_default() }),
27                SlackBlock::Event(json_value) => visitor.visit_slack_event_block(&SlackEventBlock { json_value: json_value.clone() }),
28                SlackBlock::Markdown(markdown) => visitor.visit_slack_markdown_block(markdown),
29                SlackBlock::ShareShortcut(_) => {},
30                // Alert blocks (added in slack-morphism 2.23) carry a single text field.
31                SlackBlock::Alert(alert) => visitor.visit_slack_block_text(&alert.text),
32                // Table and TaskCard blocks (added in slack-morphism 2.22), Card, Carousel
33                // and ContextActions blocks (added in 2.23) carry no plain-text/markdown
34                // representation we can render, so emit nothing.
35                SlackBlock::Table(_)
36                | SlackBlock::TaskCard(_)
37                | SlackBlock::Card(_)
38                | SlackBlock::Carousel(_)
39                | SlackBlock::ContextActions(_) => {}
40            }
41        },
42    ]
43    SlackBlock,
44    #[
45        helper_tmpl = {
46            if let Some(text) = &slack_section_block.text {
47                visitor.visit_slack_block_text(text);
48            }
49            if let Some(fields) = &slack_section_block.fields {
50                for field in fields {
51                    visitor.visit_slack_block_text(field);
52                }
53            }
54        },
55    ]
56    SlackSectionBlock,
57    #[
58        helper_tmpl = {
59            match slack_block_text {
60                SlackBlockText::Plain(plain) => visitor.visit_slack_block_plain_text(plain),
61                SlackBlockText::MarkDown(markdown) => visitor.visit_slack_block_mark_down_text(markdown),
62            }
63        },
64    ]
65    SlackBlockText,
66    SlackBlockPlainText,
67    #[
68        helper_tmpl = {
69            let slack_block_text = slack_header_block.text.clone().into();
70            visitor.visit_slack_block_text(&slack_block_text);
71        },
72    ]
73    SlackHeaderBlock,
74    SlackDividerBlock,
75    SlackImageBlock,
76    SlackBlockImageElement,
77    SlackActionsBlock,
78    #[
79        helper_tmpl = {
80            for element in &slack_context_block.elements {
81                match element {
82                    SlackContextBlockElement::Image(image) => visitor.visit_slack_block_image_element(image),
83                    SlackContextBlockElement::Plain(text) => visitor.visit_slack_block_plain_text(text),
84                    SlackContextBlockElement::MarkDown(markdown) => visitor.visit_slack_block_mark_down_text(markdown),
85                }
86            }
87        },
88    ]
89    SlackContextBlock,
90    SlackBlockMarkDownText,
91    SlackInputBlock,
92    SlackFileBlock,
93    SlackVideoBlock,
94    SlackEventBlock,
95    SlackRichTextBlock,
96    SlackMarkdownBlock,
97);
slack_blocks_render/visitor.rs

slack_blocks_render/
visitor.rs
