Save and restore window dimensions

src/helpers/db.js

@@ -1,4 +1,6 @@
 import Store from 'electron-store'
+import set from 'lodash/set'
+import get from 'lodash/get'
 
 const encryptionKey = {}
 
@@ -35,4 +37,18 @@ export default {
     db.set('data', val)
     return db.get('data')
   },
+
+  getIn: (key, path, defaultValue) => {
+    const db = store(key)
+    const data = db.get('data')
+    return get(data, path, defaultValue)
+  },
+
+  setIn: (key, path, val) => {
+    const db = store(key)
+    const data = db.get('data')
+    set(data, path, val)
+    db.set('data', data)
+    return db.get('data')
+  },
 }

src/main/app.js

@@ -1,8 +1,10 @@
 // @flow
 
 import { app, BrowserWindow, Menu, ipcMain, screen } from 'electron'
+import debounce from 'lodash/debounce'
 
 import menu from 'main/menu'
+import db from 'helpers/db'
 
 // necessary to prevent win from being garbage collected
 let mainWindow
@@ -32,9 +34,10 @@ const defaultWindowOptions = ({ height, width }) => ({
 function createMainWindow() {
   const MIN_HEIGHT = 768
   const MIN_WIDTH = 1024
+  const savedDimensions = db.getIn('settings', 'window.dimensions', {})
 
-  const height = MIN_HEIGHT
-  const width = MIN_WIDTH
+  const width = savedDimensions.width || MIN_WIDTH
+  const height = savedDimensions.height || MIN_HEIGHT
 
   const windowOptions = {
     ...defaultWindowOptions({ height, width }),
@@ -44,11 +47,11 @@ function createMainWindow() {
           titleBarStyle: 'hiddenInset',
         }
       : {}),
+    width,
     height,
-    minHeight: MIN_HEIGHT,
     minWidth: MIN_WIDTH,
+    minHeight: MIN_HEIGHT,
     show: false,
-    width,
     webPreferences: {
       ...defaultWindowOptions.webPreferences,
       // Enable, among other things, the ResizeObserver
@@ -78,6 +81,11 @@ function createMainWindow() {
     }
   })
 
+  window.on('resize', debounce(() => {
+    const [width, height] = window.getSize()
+    db.setIn('settings', 'window.dimensions', { width, height })
+  }, 100))
+
   window.webContents.on('devtools-opened', () => {
     window.focus()
     setImmediate(() => {