states_with_animation.slint

1	// Copyright © SixtyFPS GmbH <info@slint.dev>
2	// SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-Slint-Royalty-free-1.1 OR LicenseRef-Slint-commercial
3
4	TestCase := Rectangle {
5	property<int> active_index: `0`;
6	property<int> some_prop: `5`;
7	text1 := Text {
8	property<int> foo; // this one is not initialized
9	animate foo { duration: `100ms`; }
10	}
11
12	states [
13	xxx when active_index == `1` : {
14	text1.foo: `3000`;
15	some_prop: `2000`;
16	}
17	]
18
19	animate some_prop { duration: `100ms`; }
20
21
22	property<int> text1_foo: text1.foo;
23
24	}
25
26
27	/*
28
29	```rust
30	let instance = TestCase::new().unwrap();
31	assert_eq!(instance.get_text1_foo(), 0);
32	assert_eq!(instance.get_some_prop(), 5);
33	instance.set_active_index(1);
34	assert_eq!(instance.get_text1_foo(), 0);
35	assert_eq!(instance.get_some_prop(), 5);
36	slint_testing::mock_elapsed_time(75); // 75% the animation
37	assert!(instance.get_some_prop() > 1500);
38	assert!(instance.get_some_prop() < 1999);
39	assert!(instance.get_text1_foo() > 2000);
40	assert!(instance.get_text1_foo() < 2999);
41
42	slint_testing::mock_elapsed_time(30); // more than 100% the animation
43	assert_eq!(instance.get_text1_foo(), 3000);
44	assert_eq!(instance.get_some_prop(), 2000);
45
46	instance.set_active_index(2);
47	assert_eq!(instance.get_text1_foo(), 3000);
48	assert_eq!(instance.get_some_prop(), 2000);
49
50	slint_testing::mock_elapsed_time(100);
51	assert_eq!(instance.get_text1_foo(), 0);
52	assert_eq!(instance.get_some_prop(), 5);
53
54	```
55
56
57	```cpp
58	auto handle = TestCase::create();
59	const TestCase &instance = handle;*
60	assert_eq(instance.get_text1_foo(), 0);
61	assert_eq(instance.get_some_prop(), 5);
62	instance.set_active_index(1);
63	assert_eq(instance.get_text1_foo(), 0);
64	assert_eq(instance.get_some_prop(), 5);
65	slint_testing::mock_elapsed_time(75); // 75% the animation
66	assert(instance.get_some_prop() > 1500);
67	assert(instance.get_some_prop() < 1999);
68	assert(instance.get_text1_foo() > 2000);
69	assert(instance.get_text1_foo() < 2999);
70
71	slint_testing::mock_elapsed_time(30); // more than 100% the animation
72	assert_eq(instance.get_text1_foo(), 3000);
73	assert_eq(instance.get_some_prop(), 2000);
74
75	instance.set_active_index(2);
76	assert_eq(instance.get_text1_foo(), 3000);
77	assert_eq(instance.get_some_prop(), 2000);
78
79	slint_testing::mock_elapsed_time(100);
80	assert_eq(instance.get_text1_foo(), 0);
81	assert_eq(instance.get_some_prop(), 5);
82	```
83
84
85	```js
86	var instance = new slint.TestCase({});
87	assert.equal(instance.text1_foo, 0);
88	assert.equal(instance.some_prop, 5);
89	instance.active_index = 1;
90	assert.equal(instance.text1_foo, 0);
91	assert.equal(instance.some_prop, 5);
92	slintlib.private_api.mock_elapsed_time(75); // 75% the animation
93	assert(instance.some_prop > 1500);
94	assert(instance.some_prop < 1999);
95	assert(instance.text1_foo > 2000);
96	assert(instance.text1_foo < 2999);
97
98	slintlib.private_api.mock_elapsed_time(30); // more than 100% the animation
99	assert.equal(instance.text1_foo, 3000);
100	assert.equal(instance.some_prop, 2000);
101
102	instance.active_index = 2;
103	assert.equal(instance.text1_foo, 3000);
104	assert.equal(instance.some_prop, 2000);
105
106	slintlib.private_api.mock_elapsed_time(100);
107	assert.equal(instance.text1_foo, 0);
108	assert.equal(instance.some_prop, 5);
109	```
110
111	*/
112