perspective 2.0.0

A data visualization and analytics component, especially well-suited for large and/or streaming datasets.
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

////////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2018, the Perspective Authors.
//
// This file is part of the Perspective library, distributed under the terms
// of the Apache License 2.0.  The full license can be found in the LICENSE
// file.

use std::rc::Rc;

use yew::prelude::*;

use crate::js::*;
use crate::*;

#[derive(Clone, Copy, Eq, PartialEq)]
pub enum ExportMethod {
    Csv,
    CsvAll,
    Json,
    JsonAll,
    Html,
    Png,
    Arrow,
    ArrowAll,
    JsonConfig,
}

impl ExportMethod {
    pub const fn as_filename(&self) -> &'static str {
        match self {
            Self::Csv => ".csv",
            Self::CsvAll => ".all.csv",
            Self::Json => ".json",
            Self::JsonAll => ".all.json",
            Self::Html => ".html",
            Self::Png => ".png",
            Self::Arrow => ".arrow",
            Self::ArrowAll => ".all.arrow",
            Self::JsonConfig => ".config.json",
        }
    }

    pub const fn mimetype(&self) -> MimeType {
        match self {
            Self::Png => MimeType::ImagePng,
            _ => MimeType::TextPlain,
        }
    }
}

impl From<ExportMethod> for Html {
    fn from(x: ExportMethod) -> Self {
        html! {
            <code>{ x.as_filename() }</code>
        }
    }
}

impl ExportMethod {
    pub fn new_file(&self, x: &str) -> ExportFile {
        ExportFile {
            name: Rc::new(x.to_owned()),
            method: *self,
        }
    }
}

#[derive(Clone, Eq, PartialEq)]
pub struct ExportFile {
    pub name: Rc<String>,
    pub method: ExportMethod,
}

impl ExportFile {
    pub fn as_filename(&self) -> String {
        format!("{}{}", self.name, self.method.as_filename())
    }
}

impl From<ExportFile> for Html {
    fn from(x: ExportFile) -> Self {
        let class = if x.name.is_empty() {
            Some("invalid")
        } else {
            None
        };

        html_template! {
            <code class={ class }>
                { x.name }
                { x.method.as_filename() }
            </code>
        }
    }
}