perspective_viewer/components/containers/
dropdown_menu.rs

1// ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓
2// ┃ ██████ ██████ ██████       █      █      █      █      █ █▄  ▀███ █       ┃
3// ┃ ▄▄▄▄▄█ █▄▄▄▄▄ ▄▄▄▄▄█  ▀▀▀▀▀█▀▀▀▀▀ █ ▀▀▀▀▀█ ████████▌▐███ ███▄  ▀█ █ ▀▀▀▀▀ ┃
4// ┃ █▀▀▀▀▀ █▀▀▀▀▀ █▀██▀▀ ▄▄▄▄▄ █ ▄▄▄▄▄█ ▄▄▄▄▄█ ████████▌▐███ █████▄   █ ▄▄▄▄▄ ┃
5// ┃ █      ██████ █  ▀█▄       █ ██████      █      ███▌▐███ ███████▄ █       ┃
6// ┣━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┫
7// ┃ Copyright (c) 2017, the Perspective Authors.                              ┃
8// ┃ ╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌ ┃
9// ┃ This file is part of the Perspective library, distributed under the terms ┃
10// ┃ of the [Apache License 2.0](https://www.apache.org/licenses/LICENSE-2.0). ┃
11// ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
12
13use std::marker::PhantomData;
14use std::rc::Rc;
15
16use web_sys::*;
17use yew::prelude::*;
18
19use super::select::SelectItem;
20
21#[derive(Properties, PartialEq)]
22pub struct DropDownMenuProps<T>
23where
24    T: Into<Html> + Clone + PartialEq + 'static,
25{
26    pub values: Rc<Vec<DropDownMenuItem<T>>>,
27    pub callback: Callback<T>,
28}
29
30pub struct DropDownMenu<T>
31where
32    T: Into<Html> + Clone + PartialEq + 'static,
33{
34    _props: PhantomData<T>,
35}
36
37impl<T> Component for DropDownMenu<T>
38where
39    T: Into<Html> + Clone + PartialEq + 'static,
40{
41    type Message = ();
42    type Properties = DropDownMenuProps<T>;
43
44    fn create(_ctx: &Context<Self>) -> Self {
45        Self {
46            _props: Default::default(),
47        }
48    }
49
50    fn update(&mut self, _ctx: &Context<Self>, _msg: Self::Message) -> bool {
51        false
52    }
53
54    fn view(&self, ctx: &Context<Self>) -> Html {
55        let values = &ctx.props().values;
56        let body = if !values.is_empty() {
57            values
58                .iter()
59                .map(|value| match value {
60                    DropDownMenuItem::Option(x) => {
61                        let click = ctx.props().callback.reform({
62                            let value = x.clone();
63                            move |_: MouseEvent| value.clone()
64                        });
65
66                        html! {
67                            <span onmousedown={click} class="selected">{ x.clone().into() }</span>
68                        }
69                    },
70                    DropDownMenuItem::OptGroup(name, xs) => {
71                        html! {
72                            <>
73                                <span class="dropdown-group-label">{ name.as_ref() }</span>
74                                <div class="dropdown-group-container">
75                                    { xs.iter().map(|x| {
76                                    let click = ctx.props().callback.reform({
77                                        let value = x.clone();
78                                        move |_: MouseEvent| value.clone()
79                                    });
80                                    html! {
81                                        <span onmousedown={ click }>
82                                            { x.clone().into() }
83                                        </span>
84                                    }
85                                }).collect::<Html>() }
86                                </div>
87                            </>
88                        }
89                    },
90                })
91                .collect::<Html>()
92        } else {
93            html! { <span class="no-results">{ "No Completions" }</span> }
94        };
95
96        html! { <>{ body }</> }
97    }
98}
99
100pub type DropDownMenuItem<T> = SelectItem<T>;
perspective_viewer/components/containers/dropdown_menu.rs

perspective_viewer/components/containers/
dropdown_menu.rs
