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/*
* Copyright (c) 2017 Boucher, Antoni <bouanto@zoho.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#![feature(proc_macro)]
extern crate gtk;
#[macro_use]
extern crate relm;
extern crate relm_attributes;
#[macro_use]
extern crate relm_derive;
#[cfg_attr(test, macro_use)]
extern crate gtk_test;
use gtk::{
ButtonExt,
Inhibit,
LabelExt,
OrientableExt,
WidgetExt,
};
use gtk::Orientation::Vertical;
use relm::Widget;
use relm_attributes::widget;
use self::Msg::*;
// Define the structure of the model.
pub struct Model {
counter: i32,
}
// The messages that can be sent to the update function.
#[derive(Msg)]
pub enum Msg {
#[cfg(test)] Test,
Decrement,
Increment,
Quit,
}
#[widget]
impl Widget for Win {
// The initial model.
fn model() -> Model {
Model {
counter: 0,
}
}
// Update the model according to the message received.
fn update(&mut self, event: Msg) {
match event {
#[cfg(test)] Test => (),
Decrement => self.model.counter -= 1,
Increment => self.model.counter += 1,
Quit => gtk::main_quit(),
}
}
view! {
gtk::Window {
gtk::Box {
// Set the orientation property of the Box.
orientation: Vertical,
// Create a Button inside the Box.
#[name="inc_button"]
gtk::Button {
// Send the message Increment when the button is clicked.
clicked => Increment,
// TODO: check if using two events of the same name work.
label: "+",
},
#[name="label"]
gtk::Label {
// Bind the text property of the label to the counter attribute of the model.
text: &self.model.counter.to_string(),
},
#[name="dec_button"]
gtk::Button {
clicked => Decrement,
label: "-",
},
},
delete_event(_, _) => (Quit, Inhibit(false)),
}
}
}
fn main() {
Win::run(()).expect("Win::run failed");
}
#[cfg(test)]
mod tests {
use gtk::{ButtonExt, LabelExt};
use relm;
use gtk_test::click;
use Win;
#[test]
fn label_change() {
let (_component, widgets) = relm::init_test::<Win>(()).expect("init_test failed");
let inc_button = &widgets.inc_button;
let dec_button = &widgets.dec_button;
let label = &widgets.label;
assert_label!(inc_button, "+");
assert_label!(dec_button, "-");
assert_text!(label, 0);
click(inc_button);
assert_text!(label, 1);
click(inc_button);
assert_text!(label, 2);
click(inc_button);
assert_text!(label, 3);
click(inc_button);
assert_text!(label, 4);
click(dec_button);
assert_text!(label, 3);
click(dec_button);
assert_text!(label, 2);
click(dec_button);
assert_text!(label, 1);
click(dec_button);
assert_text!(label, 0);
click(dec_button);
assert_text!(label, -1);
}
}