add badge-setting constructor [WIP]

app/renderer/js/pages/preference/badge-settings.js

@@ -0,0 +1,36 @@
+'use strict';
+const { app } = require('electron');
+
+class BadgeSettings {
+	constructor(messageCount, mainWindow) {
+		this.messageCount = messageCount;
+		this.mainWindow = mainWindow;
+	}
+
+	showBadgeCount(messageCount, mainWindow) {
+		if (process.platform === 'darwin') {
+			app.setBadgeCount(messageCount);
+		}
+		if (process.platform === 'win32') {
+			if (!mainWindow.isFocused()) {
+				mainWindow.flashFrame(true);
+			}
+			if (messageCount === 0) {
+				mainWindow.setOverlayIcon(null, '');
+			} else {
+				mainWindow.webContentssend('render-taskbar-icon', messageCount);
+			}
+		}
+	}
+
+	hideBadgeCount(mainWindow) {
+		if (process.platform === 'darwin') {
+			app.setBadgeCount(0);
+		}
+		if (process.platform === 'win32') {
+			mainWindow.setOverlayIcon(null, '');
+		}
+	}
+}
+
+module.exports = new BadgeSettings();