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
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171

use std::io::Write;

use anyhow::Result;
use clipboard::{ClipboardContext, ClipboardProvider};

use abstio::MapName;
use widgetry::{
    EventCtx, GfxCtx, Line, Outcome, Panel, State, TextExt, Toggle, Transition, Widget,
};

use crate::load::MapLoader;
use crate::tools::{find_exe, open_browser, PopupMsg};
use crate::AppLike;

pub struct ImportCity<A: AppLike> {
    panel: Panel,
    // Wrapped in an Option just to make calling from event() work.
    on_load: Option<Box<dyn FnOnce(&mut EventCtx, &mut A) -> Transition<A>>>,
}

impl<A: AppLike + 'static> ImportCity<A> {
    pub fn new_state(
        ctx: &mut EventCtx,
        on_load: Box<dyn FnOnce(&mut EventCtx, &mut A) -> Transition<A>>,
    ) -> Box<dyn State<A>> {
        let panel = Panel::new_builder(Widget::col(vec![
            Widget::row(vec![
                Line("Import a new city").small_heading().into_widget(ctx),
                ctx.style().btn_close_widget(ctx),
            ]),
            Widget::col(vec![
                Widget::row(vec![
                    "Step 1)".text_widget(ctx).centered_vert(),
                    ctx.style()
                        .btn_plain
                        .btn()
                        .label_underlined_text("Go to geojson.io")
                        .build_def(ctx),
                ]),
                Widget::row(vec![
                    "Step 2)".text_widget(ctx).margin_right(16),
                    "Draw a polygon boundary where you want to import"
                        .text_widget(ctx)
                        .margin_below(16),
                ])
                .margin_below(16),
                Widget::row(vec![
                    "Step 3)".text_widget(ctx).margin_right(16),
                    "Copy the JSON text on the right into your clipboard".text_widget(ctx),
                ])
                .margin_below(16),
                Widget::row(vec![
                    "Step 4)".text_widget(ctx).centered_vert(),
                    Toggle::choice(
                        ctx,
                        "left handed driving",
                        "drive on the left",
                        "right",
                        None,
                        false,
                    ),
                ]),
                Widget::row(vec![
                    "Step 5)".text_widget(ctx).centered_vert(),
                    ctx.style()
                        .btn_solid_primary
                        .text("Import the area from your clipboard")
                        .build_def(ctx),
                ])
                .margin_below(32),
                ctx.style()
                    .btn_plain
                    .btn()
                    .label_underlined_text("Alternate instructions")
                    .build_def(ctx),
            ])
            .section(ctx),
        ]))
        .build(ctx);
        Box::new(ImportCity {
            panel,
            on_load: Some(on_load),
        })
    }
}

impl<A: AppLike + 'static> State<A> for ImportCity<A> {
    fn event(&mut self, ctx: &mut EventCtx, app: &mut A) -> Transition<A> {
        match self.panel.event(ctx) {
            Outcome::Clicked(x) => match x.as_ref() {
                "close" => Transition::Pop,
                "Alternate instructions" => {
                    open_browser("https://a-b-street.github.io/docs/user/new_city.html");
                    Transition::Keep
                }
                "Go to geojson.io" => {
                    open_browser("http://geojson.io");
                    Transition::Keep
                }
                "Import the area from your clipboard" => {
                    let mut args =
                        vec![find_exe("one_step_import"), "boundary.geojson".to_string()];
                    if self.panel.is_checked("left handed driving") {
                        args.push("--drive_on_left".to_string());
                    }
                    match grab_geojson_from_clipboard() {
                        Ok(()) => Transition::Push(crate::tools::RunCommand::new_state(
                            ctx,
                            app,
                            args,
                            Box::new(|_, _, success, mut lines| {
                                if success {
                                    abstio::delete_file("boundary.geojson");

                                    Transition::ReplaceWithData(Box::new(move |state, ctx, app| {
                                        let mut import =
                                            state.downcast::<ImportCity<A>>().ok().unwrap();
                                        let on_load = import.on_load.take().unwrap();
                                        // one_step_import prints the name of the map as the last
                                        // line.
                                        let name =
                                            MapName::new("zz", "oneshot", &lines.pop().unwrap());
                                        vec![MapLoader::new_state(ctx, app, name, on_load)]
                                    }))
                                } else {
                                    // The popup already explained the failure
                                    Transition::Keep
                                }
                            }),
                        )),
                        Err(err) => Transition::Push(PopupMsg::new_state(
                            ctx,
                            "Error",
                            vec![
                                "Couldn't get GeoJSON from your clipboard".to_string(),
                                err.to_string(),
                            ],
                        )),
                    }
                }
                _ => unreachable!(),
            },
            _ => Transition::Keep,
        }
    }

    fn draw(&self, g: &mut GfxCtx, _: &A) {
        self.panel.draw(g);
    }
}

fn grab_geojson_from_clipboard() -> Result<()> {
    // TODO The clipboard crate uses old nightly Errors. Converting to anyhow is weird.
    let mut ctx: ClipboardContext = match ClipboardProvider::new() {
        Ok(ctx) => ctx,
        Err(err) => bail!("{}", err),
    };
    let contents = match ctx.get_contents() {
        Ok(contents) => contents,
        Err(err) => bail!("{}", err),
    };
    if contents.parse::<geojson::GeoJson>().is_err() {
        bail!(
            "Your clipboard doesn't seem to have GeoJSON. Got: {}",
            contents
        );
    }
    let mut f = std::fs::File::create("boundary.geojson")?;
    write!(f, "{}", contents)?;
    Ok(())
}