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
|
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
use dom_struct::dom_struct;
use euclid::Size2D;
use profile_traits::ipc;
use script_traits::ScriptMsg;
use style_traits::CSSPixel;
use webrender_api::units::DeviceIntSize;
use crate::dom::bindings::codegen::Bindings::ScreenBinding::ScreenMethods;
use crate::dom::bindings::inheritance::Castable;
use crate::dom::bindings::num::Finite;
use crate::dom::bindings::reflector::{reflect_dom_object, DomObject, Reflector};
use crate::dom::bindings::root::{Dom, DomRoot};
use crate::dom::globalscope::GlobalScope;
use crate::dom::window::Window;
#[dom_struct]
pub struct Screen {
reflector_: Reflector,
window: Dom<Window>,
}
impl Screen {
fn new_inherited(window: &Window) -> Screen {
Screen {
reflector_: Reflector::new(),
window: Dom::from_ref(window),
}
}
pub fn new(window: &Window) -> DomRoot<Screen> {
reflect_dom_object(Box::new(Screen::new_inherited(window)), window)
}
fn screen_size(&self) -> Size2D<u32, CSSPixel> {
let (send, recv) =
ipc::channel::<DeviceIntSize>(self.global().time_profiler_chan().clone()).unwrap();
self.window
.upcast::<GlobalScope>()
.script_to_constellation_chan()
.send(ScriptMsg::GetScreenSize(send))
.unwrap();
let dpr = self.window.device_pixel_ratio();
let screen = recv.recv().unwrap_or(Size2D::zero());
(screen.to_f32() / dpr).to_u32()
}
fn screen_avail_size(&self) -> Size2D<u32, CSSPixel> {
let (send, recv) =
ipc::channel::<DeviceIntSize>(self.global().time_profiler_chan().clone()).unwrap();
self.window
.upcast::<GlobalScope>()
.script_to_constellation_chan()
.send(ScriptMsg::GetScreenAvailSize(send))
.unwrap();
let dpr = self.window.device_pixel_ratio();
let screen = recv.recv().unwrap_or(Size2D::zero());
(screen.to_f32() / dpr).to_u32()
}
}
impl ScreenMethods for Screen {
// https://drafts.csswg.org/cssom-view/#dom-screen-availwidth
fn AvailWidth(&self) -> Finite<f64> {
Finite::wrap(self.screen_avail_size().width as f64)
}
// https://drafts.csswg.org/cssom-view/#dom-screen-availheight
fn AvailHeight(&self) -> Finite<f64> {
Finite::wrap(self.screen_avail_size().height as f64)
}
// https://drafts.csswg.org/cssom-view/#dom-screen-width
fn Width(&self) -> Finite<f64> {
Finite::wrap(self.screen_size().width as f64)
}
// https://drafts.csswg.org/cssom-view/#dom-screen-height
fn Height(&self) -> Finite<f64> {
Finite::wrap(self.screen_size().height as f64)
}
// https://drafts.csswg.org/cssom-view/#dom-screen-colordepth
fn ColorDepth(&self) -> u32 {
24
}
// https://drafts.csswg.org/cssom-view/#dom-screen-pixeldepth
fn PixelDepth(&self) -> u32 {
24
}
}
|
