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Commitd6179de

Browse files
committed
macOS: Check for display availability when looking for backends
1 parent993f22d commitd6179de

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8 files changed

+39
-16
lines changed

8 files changed

+39
-16
lines changed

‎lib/matplotlib/tests/test_backend_qt.py‎

Lines changed: 2 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -305,9 +305,8 @@ def _get_testable_qt_backends():
305305
]:
306306
reason=None
307307
missing= [depfordepindepsifnotimportlib.util.find_spec(dep)]
308-
if (sys.platform=="linux"and
309-
not_c_internal_utils.display_is_valid()):
310-
reason="$DISPLAY and $WAYLAND_DISPLAY are unset"
308+
ifnot_c_internal_utils.display_is_valid():
309+
reason="Display is unavailable"
311310
elifmissing:
312311
reason="{} cannot be imported".format(", ".join(missing))
313312
elifenv["MPLBACKEND"]=='macosx'andos.environ.get('TF_BUILD'):

‎lib/matplotlib/tests/test_backend_tk.py‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -35,8 +35,8 @@ def _isolated_tk_test(success_count, func=None):
3535
reason="missing tkinter"
3636
)
3737
@pytest.mark.skipif(
38-
sys.platform=="linux"andnot_c_internal_utils.display_is_valid(),
39-
reason="$DISPLAY and $WAYLAND_DISPLAY are unset"
38+
not_c_internal_utils.display_is_valid(),
39+
reason="Display is unavailable"
4040
)
4141
@pytest.mark.xfail(# https://github.com/actions/setup-python/issues/649
4242
('TF_BUILD'inos.environor'GITHUB_ACTION'inos.environ)and

‎lib/matplotlib/tests/test_backends_interactive.py‎

Lines changed: 3 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -55,8 +55,7 @@ def wait_for(self, terminator):
5555

5656
@functools.lru_cache
5757
def_get_available_interactive_backends():
58-
_is_linux_and_display_invalid= (sys.platform=="linux"and
59-
not_c_internal_utils.display_is_valid())
58+
_is_display_invalid=not_c_internal_utils.display_is_valid()
6059
envs= []
6160
fordeps,envin [
6261
*[([qt_api],
@@ -74,8 +73,8 @@ def _get_available_interactive_backends():
7473
]:
7574
reason=None
7675
missing= [depfordepindepsifnotimportlib.util.find_spec(dep)]
77-
if_is_linux_and_display_invalid:
78-
reason="$DISPLAY and $WAYLAND_DISPLAY are unset"
76+
if_is_display_invalid:
77+
reason="Display is unavailable"
7978
elifmissing:
8079
reason="{} cannot be imported".format(", ".join(missing))
8180
elifenv["MPLBACKEND"]=='macosx'andos.environ.get('TF_BUILD'):

‎lib/matplotlib/tests/test_rcparams.py‎

Lines changed: 1 addition & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -534,9 +534,7 @@ def test_backend_fallback_headless(tmp_path):
534534
env=env,check=True,stderr=subprocess.DEVNULL)
535535

536536

537-
@pytest.mark.skipif(
538-
sys.platform=="linux"andnot_c_internal_utils.display_is_valid(),
539-
reason="headless")
537+
@pytest.mark.skipif(not_c_internal_utils.display_is_valid(),reason="headless")
540538
deftest_backend_fallback_headful(tmp_path):
541539
pytest.importorskip("tkinter")
542540
env= {**os.environ,"MPLBACKEND":"","MPLCONFIGDIR":str(tmp_path)}

‎meson.build‎

Lines changed: 4 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -17,6 +17,10 @@ project(
1717

1818
cc=meson.get_compiler('c')
1919
cpp=meson.get_compiler('cpp')
20+
# Objective C is needed for the _c_internal_utils and macosx extension.
21+
ifhost_machine.system()=='darwin'
22+
add_languages('objc',native:false)
23+
endif
2024

2125
# https://mesonbuild.com/Python-module.html
2226
py_mod=import('python')

‎src/_c_internal_utils.cpp‎

Lines changed: 10 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -18,6 +18,12 @@
1818
#else
1919
#defineUNUSED_ON_NON_WINDOWS Py_UNUSED
2020
#endif
21+
#ifdef __APPLE__
22+
// Defined in _objc_internal_utils.m.
23+
extern"C" {
24+
int_macos_display_is_valid(void);
25+
}
26+
#endif
2127

2228
namespacepy= pybind11;
2329
usingnamespacepybind11::literals;
@@ -69,6 +75,8 @@ mpl_display_is_valid(void)
6975
}
7076
}
7177
returnfalse;
78+
#elif defined(__APPLE__)
79+
return_macos_display_is_valid() ==1;
7280
#else
7381
returntrue;
7482
#endif
@@ -180,6 +188,8 @@ PYBIND11_MODULE(_c_internal_utils, m)
180188
succeeds, or $WAYLAND_DISPLAY is set and wl_display_connect(NULL)
181189
succeeds.
182190
191+
On macOS, returns True if NSScreen::mainScreen is not nil.
192+
183193
On other platforms, always returns True.)""");
184194
m.def(
185195
"Win32_GetCurrentProcessExplicitAppUserModelID",

‎src/_objc_internal_utils.m‎

Lines changed: 13 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,13 @@
1+
#include<Cocoa/Cocoa.h>
2+
3+
int
4+
_macos_display_is_valid(void)
5+
{
6+
NSApplicationLoad();
7+
NSScreen *main = [NSScreenmainScreen];
8+
if (main !=nil) {
9+
return1;
10+
}else {
11+
return0;
12+
}
13+
}

‎src/meson.build‎

Lines changed: 4 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -81,9 +81,10 @@ extension_data = {
8181
},
8282
'_c_internal_utils': {
8383
'subdir':'matplotlib',
84-
'sources':files(
85-
'_c_internal_utils.cpp',
86-
),
84+
'sources': [
85+
files('_c_internal_utils.cpp'),
86+
(host_machine.system()=='darwin') ?files('_objc_internal_utils.m') : [],
87+
],
8788
'dependencies': [pybind11_dep, dl, ole32, shell32, user32],
8889
},
8990
'ft2font': {
@@ -182,7 +183,6 @@ foreach ext, kwargs : extension_data
182183
endforeach
183184

184185
ifget_option('macosx')andhost_machine.system()=='darwin'
185-
add_languages('objc',native:false)
186186
py3.extension_module(
187187
'_macosx',
188188
subdir:'matplotlib/backends',

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