blender macos detection

gistfile1.txt

		/* Get the current operating system. See get_os.js */
		let os = getOS();

		/* Windows. */
		if (os == 'windows') {
			showPlatformWarning('This Windows version might not be supported.');
		}
		else if (os == 'windows-arm') {
			showPlatformWarning('Blender is not available for Windows ARM architecture yet.');
		}
		/* Linux. */
		else if (os.startsWith('linux') || os.startsWith('freebsd')) {

			/* Set the Download button platform to Linux. */
			downloadButtons = document.getElementsByClassName('dl-os-linux');

			if (os == 'freebsd') {
				showPlatformWarning('There are no official builds for FreeBSD yet.');
			}
		}
		/* macOS. */
		else if (os.startsWith('macos') || os.startsWith('ios')) {

			/* Set the Download button platform to macOS. */
			downloadButtons = document.getElementsByClassName('dl-os-macos');

			if (os == 'macos-apple-silicon') {
				downloadButtons = document.getElementsByClassName('dl-os-macos-apple-silicon');

				/* Safari does not have a reliable way to detect if the system is Intel or Apple Silicon,
				 * Show Download buttons for both systems for the time being until navigator.gpu is supported. */
				let is_safari = navigator.userAgent.indexOf('Safari') > -1 && navigator.userAgent.indexOf('Chrome') <= -1;

				if (is_safari) {
					downloadButtons = document.querySelectorAll('[class^="dl-header-cta dl-os-macos"]');
				}
			} else if (os == 'macos-32' || os == 'macos-PPC') {
				showPlatformWarning('This macOS version might not be supported.');
			}
			else if (os == 'ios') {
				showPlatformWarning('Blender is not available for iOS yet.');
			}
		}

		/* Show the Download button for the current OS. */
		for (var i = 0; i < downloadButtons.length; i++) {
			downloadButtons[i].style.display = 'block';
			downloadButtons[i].classList.add('active');
		}

		/* Style the other platforms button, so we can highlight alternative builds on the same platform. */
		$('#menu-other-platforms').addClass('dl-other-list-os-' + os);
		$('.dl-header-other').addClass('current-os-' + os);

		/* Click anywhere on the page to hide these popups. */
		$(document).click(function () {
			$('.dl-togglable, .js-toggle-menu').removeClass('active');
		});

		/* Register stats for download. */
		$('.js-download').click(function(e){
			dl_stats = $(this).attr('dl_stats');
			ga('send', 'event', 'button', 'download', dl_stats);
		});