aboutsummaryrefslogtreecommitdiffstats
path: root/src/platform/linux/api_dispatch.rs
blob: 46c58bb00ffcaba39c7b90f9c785f2e14c4cb8ba (plain)
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
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
/*#[cfg(feature = "window")]
pub use api::x11::{Window, WindowProxy, MonitorID, get_available_monitors, get_primary_monitor};
#[cfg(feature = "window")]
pub use api::x11::{WaitEventsIterator, PollEventsIterator};*/

use std::collections::VecDeque;
use std::sync::Arc;

use ContextError;
use CreationError;
use CursorState;
use Event;
use GlAttributes;
use GlContext;
use MouseCursor;
use PixelFormat;
use PixelFormatRequirements;
use WindowAttributes;
use libc;

use api::wayland;
use api::x11;
use api::x11::XConnection;
use api::x11::XNotSupported;

enum Backend {
    X(Arc<XConnection>),
    Wayland,
    Error(XNotSupported),
}

lazy_static!(
    static ref BACKEND: Backend = {
        // Wayland backend is not production-ready yet so we disable it
        if false && wayland::is_available() {
            Backend::Wayland
        } else {
            match XConnection::new() {
                Ok(x) => Backend::X(Arc::new(x)),
                Err(e) => Backend::Error(e),
            }
        }
    };
);

pub enum Window {
    #[doc(hidden)]
    X(x11::Window),
    #[doc(hidden)]
    Wayland(wayland::Window)
}

#[derive(Clone)]
pub enum WindowProxy {
    #[doc(hidden)]
    X(x11::WindowProxy),
    #[doc(hidden)]
    Wayland(wayland::WindowProxy)
}

impl WindowProxy {
    pub fn wakeup_event_loop(&self) {
        match self {
            &WindowProxy::X(ref wp) => wp.wakeup_event_loop(),
            &WindowProxy::Wayland(ref wp) => wp.wakeup_event_loop()
        }
    }
}

#[derive(Clone)]
pub enum MonitorID {
    #[doc(hidden)]
    X(x11::MonitorID),
    #[doc(hidden)]
    Wayland(wayland::MonitorID),
    #[doc(hidden)]
    None,
}

pub fn get_available_monitors() -> VecDeque<MonitorID> {
    match *BACKEND {
        Backend::Wayland => wayland::get_available_monitors()
                                .into_iter()
                                .map(MonitorID::Wayland)
                                .collect(),
        Backend::X(ref connec) => x11::get_available_monitors(connec)
                                    .into_iter()
                                    .map(MonitorID::X)
                                    .collect(),
        Backend::Error(_) => { let mut d = VecDeque::new(); d.push_back(MonitorID::None); d},
    }
}

pub fn get_primary_monitor() -> MonitorID {
    match *BACKEND {
        Backend::Wayland => MonitorID::Wayland(wayland::get_primary_monitor()),
        Backend::X(ref connec) => MonitorID::X(x11::get_primary_monitor(connec)),
        Backend::Error(_) => MonitorID::None,
    }
}

impl MonitorID {
    pub fn get_name(&self) -> Option<String> {
        match self {
            &MonitorID::X(ref m) => m.get_name(),
            &MonitorID::Wayland(ref m) => m.get_name(),
            &MonitorID::None => None,
        }
    }

    pub fn get_native_identifier(&self) -> ::native_monitor::NativeMonitorId {
        match self {
            &MonitorID::X(ref m) => m.get_native_identifier(),
            &MonitorID::Wayland(ref m) => m.get_native_identifier(),
            &MonitorID::None => unimplemented!()        // FIXME: 
        }
    }

    pub fn get_dimensions(&self) -> (u32, u32) {
        match self {
            &MonitorID::X(ref m) => m.get_dimensions(),
            &MonitorID::Wayland(ref m) => m.get_dimensions(),
            &MonitorID::None => (800, 600),     // FIXME: 
        }
    }
}


pub enum PollEventsIterator<'a> {
    #[doc(hidden)]
    X(x11::PollEventsIterator<'a>),
    #[doc(hidden)]
    Wayland(wayland::PollEventsIterator<'a>)
}

impl<'a> Iterator for PollEventsIterator<'a> {
    type Item = Event;

    fn next(&mut self) -> Option<Event> {
        match self {
            &mut PollEventsIterator::X(ref mut it) => it.next(),
            &mut PollEventsIterator::Wayland(ref mut it) => it.next()
        }
    }
}

pub enum WaitEventsIterator<'a> {
    #[doc(hidden)]
    X(x11::WaitEventsIterator<'a>),
    #[doc(hidden)]
    Wayland(wayland::WaitEventsIterator<'a>)
}

impl<'a> Iterator for WaitEventsIterator<'a> {
    type Item = Event;

    fn next(&mut self) -> Option<Event> {
        match self {
            &mut WaitEventsIterator::X(ref mut it) => it.next(),
            &mut WaitEventsIterator::Wayland(ref mut it) => it.next()
        }
    }
}

impl Window {
    pub fn new(window: &WindowAttributes, pf_reqs: &PixelFormatRequirements,
               opengl: &GlAttributes<&Window>) -> Result<Window, CreationError>
    {
        match *BACKEND {
            Backend::Wayland => {
                let opengl = opengl.clone().map_sharing(|w| match w {
                    &Window::Wayland(ref w) => w,
                    _ => panic!()       // TODO: return an error
                });

                wayland::Window::new(window, pf_reqs, &opengl).map(Window::Wayland)
            },

            Backend::X(ref connec) => {
                let opengl = opengl.clone().map_sharing(|w| match w {
                    &Window::X(ref w) => w,
                    _ => panic!()       // TODO: return an error
                });

                x11::Window::new(connec, window, pf_reqs, &opengl).map(Window::X)
            },

            Backend::Error(ref error) => Err(CreationError::NoBackendAvailable(Box::new(error.clone())))
        }
    }

    pub fn set_title(&self, title: &str) {
        match self {
            &Window::X(ref w) => w.set_title(title),
            &Window::Wayland(ref w) => w.set_title(title)
        }
    }

    pub fn show(&self) {
        match self {
            &Window::X(ref w) => w.show(),
            &Window::Wayland(ref w) => w.show()
        }
    }

    pub fn hide(&self) {
        match self {
            &Window::X(ref w) => w.hide(),
            &Window::Wayland(ref w) => w.hide()
        }
    }

    pub fn get_position(&self) -> Option<(i32, i32)> {
        match self {
            &Window::X(ref w) => w.get_position(),
            &Window::Wayland(ref w) => w.get_position()
        }
    }

    pub fn set_position(&self, x: i32, y: i32) {
        match self {
            &Window::X(ref w) => w.set_position(x, y),
            &Window::Wayland(ref w) => w.set_position(x, y)
        }
    }

    pub fn get_inner_size(&self) -> Option<(u32, u32)> {
        match self {
            &Window::X(ref w) => w.get_inner_size(),
            &Window::Wayland(ref w) => w.get_inner_size()
        }
    }

    pub fn get_outer_size(&self) -> Option<(u32, u32)> {
        match self {
            &Window::X(ref w) => w.get_outer_size(),
            &Window::Wayland(ref w) => w.get_outer_size()
        }
    }

    pub fn set_inner_size(&self, x: u32, y: u32) {
        match self {
            &Window::X(ref w) => w.set_inner_size(x, y),
            &Window::Wayland(ref w) => w.set_inner_size(x, y)
        }
    }

    pub fn create_window_proxy(&self) -> WindowProxy {
        match self {
            &Window::X(ref w) => WindowProxy::X(w.create_window_proxy()),
            &Window::Wayland(ref w) => WindowProxy::Wayland(w.create_window_proxy())
        }
    }

    pub fn poll_events(&self) -> PollEventsIterator {
        match self {
            &Window::X(ref w) => PollEventsIterator::X(w.poll_events()),
            &Window::Wayland(ref w) => PollEventsIterator::Wayland(w.poll_events())
        }
    }

    pub fn wait_events(&self) -> WaitEventsIterator {
        match self {
            &Window::X(ref w) => WaitEventsIterator::X(w.wait_events()),
            &Window::Wayland(ref w) => WaitEventsIterator::Wayland(w.wait_events())
        }
    }

    pub fn set_window_resize_callback(&mut self, callback: Option<fn(u32, u32)>) {
        match self {
            &mut Window::X(ref mut w) => w.set_window_resize_callback(callback),
            &mut Window::Wayland(ref mut w) => w.set_window_resize_callback(callback)
        }
    }

    pub fn set_cursor(&self, cursor: MouseCursor) {
        match self {
            &Window::X(ref w) => w.set_cursor(cursor),
            &Window::Wayland(ref w) => w.set_cursor(cursor)
        }
    }

    pub fn set_cursor_state(&self, state: CursorState) -> Result<(), String> {
        match self {
            &Window::X(ref w) => w.set_cursor_state(state),
            &Window::Wayland(ref w) => w.set_cursor_state(state)
        }
    }

    pub fn hidpi_factor(&self) -> f32 {
       match self {
            &Window::X(ref w) => w.hidpi_factor(),
            &Window::Wayland(ref w) => w.hidpi_factor()
        }
    }

    pub fn set_cursor_position(&self, x: i32, y: i32) -> Result<(), ()> {
        match self {
            &Window::X(ref w) => w.set_cursor_position(x, y),
            &Window::Wayland(ref w) => w.set_cursor_position(x, y)
        }
    }

    pub fn platform_display(&self) -> *mut libc::c_void {
        match self {
            &Window::X(ref w) => w.platform_display(),
            &Window::Wayland(ref w) => w.platform_display()
        }
    }

    pub fn platform_window(&self) -> *mut libc::c_void {
        match self {
            &Window::X(ref w) => w.platform_window(),
            &Window::Wayland(ref w) => w.platform_window()
        }
    }
}

impl GlContext for Window {
    unsafe fn make_current(&self) -> Result<(), ContextError> {
        match self {
            &Window::X(ref w) => w.make_current(),
            &Window::Wayland(ref w) => w.make_current()
        }
    }

    fn is_current(&self) -> bool {
        match self {
            &Window::X(ref w) => w.is_current(),
            &Window::Wayland(ref w) => w.is_current()
        }
    }

    fn get_proc_address(&self, addr: &str) -> *const libc::c_void {
        match self {
            &Window::X(ref w) => w.get_proc_address(addr),
            &Window::Wayland(ref w) => w.get_proc_address(addr)
        }
    }

    fn swap_buffers(&self) -> Result<(), ContextError> {
        match self {
            &Window::X(ref w) => w.swap_buffers(),
            &Window::Wayland(ref w) => w.swap_buffers()
        }
    }

    fn get_api(&self) -> ::Api {
        match self {
            &Window::X(ref w) => w.get_api(),
            &Window::Wayland(ref w) => w.get_api()
        }
    }

    fn get_pixel_format(&self) -> PixelFormat {
        match self {
            &Window::X(ref w) => w.get_pixel_format(),
            &Window::Wayland(ref w) => w.get_pixel_format()
        }
    }
}