inhibit: add UIKit-based inhibiter

The inhibiter code is taken from VLCKit inhibiter's handling, and is
meant to replace this handling.

modules/misc/Makefile.am

@@ -52,6 +52,17 @@ libiokit_inhibit_plugin_la_LDFLAGS = $(AM_LDFLAGS) -Wl,-framework,CoreFoundation
 misc_LTLIBRARIES += libiokit_inhibit_plugin.la
 endif
 
+libuikit_inhibit_plugin_la_SOURCES = misc/inhibit/uikit-inhibit.m
+libuikit_inhibit_plugin_la_LDFLAGS = $(AM_LDFLAGS) -Wl,-framework,UIKit,-framework,Foundation
+libuikit_inhibit_plugin_la_OBJCFLAGS = $(AM_OBJCFLAGS) -fobjc-arc
+if HAVE_IOS
+misc_LTLIBRARIES += libuikit_inhibit_plugin.la
+endif
+
+if HAVE_TVOS
+misc_LTLIBRARIES += libuikit_inhibit_plugin.la
+endif
+
 libxdg_screensaver_plugin_la_SOURCES = misc/inhibit/xdg.c
 if HAVE_XCB
 if !HAVE_WIN32
@@ -129,4 +140,3 @@ libmedialibrary_plugin_la_LIBADD = $(MEDIALIBRARY_LIBS)
 libmedialibrary_plugin_la_LDFLAGS = $(AM_LDFLAGS) -rpath '$(miscdir)'
 EXTRA_LTLIBRARIES += libmedialibrary_plugin.la
 misc_LTLIBRARIES += $(LTLIBmedialibrary)
-

modules/misc/inhibit/uikit-inhibit.m

+/*****************************************************************************
+ * Copyright © 2021 Videolabs
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+/**
+ * \file uikit-inhibit.m
+ * \brief iOS display and idle sleep inhibitor using UIKit
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_inhibit.h>
+#include <vlc_vout_window.h>
+
+#include <UIKit/UIKit.h>
+
+static void UpdateInhibit(vlc_inhibit_t *ih, unsigned mask)
+{
+    [UIApplication sharedApplication].idleTimerDisabled =
+        (mask & VLC_INHIBIT_DISPLAY) == VLC_INHIBIT_DISPLAY;
+}
+
+static int OpenInhibit(vlc_object_t *obj)
+{
+    vlc_inhibit_t *ih = (vlc_inhibit_t *)obj;
+    vout_window_t *wnd = vlc_inhibit_GetWindow(ih);
+    if (wnd->type != VOUT_WINDOW_TYPE_NSOBJECT)
+        return VLC_EGENERIC;
+
+    UIView * view = (__bridge UIView*)wnd->handle.nsobject;
+
+    if (unlikely(![view respondsToSelector:@selector(isKindOfClass:)]))
+        return VLC_EGENERIC;
+
+    if (![view isKindOfClass:[UIView class]])
+        return VLC_EGENERIC;
+
+    ih->inhibit = UpdateInhibit;
+    return VLC_SUCCESS;
+}
+
+vlc_module_begin()
+    set_shortname("UIKit sleep inhibition")
+    set_description("UIKit screen sleep inhibition for iOS and tvOS")
+    set_category(CAT_ADVANCED)
+    set_subcategory(SUBCAT_ADVANCED_MISC)
+    set_capability("inhibit", 10)
+    set_callback(OpenInhibit)
+vlc_module_end()