Function checkForUpdatesFn

src/main/electron.js:1326–1350

(e)

    let updateNoAvailAdded = false;
    
	function checkForUpdatesFn(e)
	{
		if (e != null && e.senderFrame != null &&
			!validateSender(e.senderFrame)) return null;

		manualUpdateCheck = true;
		safeUpdaterCall('checkForUpdates (manual)', () => autoUpdater.checkForUpdates());

		if (!updateNoAvailAdded)
		{
			updateNoAvailAdded = true;
			autoUpdater.on('update-not-available', safeUpdaterListener('update-not-available', (info) =>
			{
				if (!manualUpdateCheck) return; // Suppress dialog for boot-time silent checks

				manualUpdateCheck = false;
				dialog.showMessageBox(
				{
					type: 'info',
					title: 'No updates found',
					message: 'Your application is up-to-date',
				})
			}))
		}
	};

	var zoomSteps = [0.25, 0.33, 0.5, 0.67, 0.75, 0.8, 0.9, 1,
		1.1, 1.25, 1.5, 1.75, 2, 2.5, 3, 4, 5];