add app and apps icons

src/appicon.js

@@ -0,0 +1,54 @@
+'use strict'
+
+const path = require('path')
+const fs = require('fs')
+
+const APP_NAME = 'PLGL'
+
+function findPng() {
+  const p = path.resolve(__dirname, '..', 'renderer', 'plgl.png')
+  try {
+    fs.accessSync(p)
+    return p
+  } catch {
+    return null
+  }
+}
+
+function writeIconThemeDirs(png) {
+  try {
+    const sizes = { '16x16': 16, '32x32': 32, '48x48': 48, '256x256': 256 }
+    const home = process.env.HOME
+    if (!home) return
+    const base = path.join(home, '.local', 'share', 'icons')
+    for (const [dir, size] of Object.entries(sizes)) {
+      const themeDir = path.join(base, 'hicolor', dir, 'apps')
+      fs.mkdirSync(themeDir, { recursive: true })
+      fs.copyFileSync(png, path.join(themeDir, 'plgl.png'))
+    }
+    const desktopDir = path.join(home, '.local', 'share', 'applications')
+    fs.mkdirSync(desktopDir, { recursive: true })
+    const desktop = [
+      '[Desktop Entry]',
+      'Type=Application',
+      `Name=${APP_NAME}`,
+      'Comment=Portable Linux Wine Launcher',
+      'Exec=plgl',
+      `Icon=plgl`,
+      'Terminal=false',
+      'Categories=Game;'
+    ].join('\n')
+    fs.writeFileSync(path.join(desktopDir, 'plgl.desktop'), desktop)
+  } catch {}
+}
+
+function setAppIcon(app) {
+  const png = findPng()
+  if (!png) return
+  try {
+    app.setIcon(png)
+  } catch {}
+  writeIconThemeDirs(png)
+}
+
+module.exports = { setAppIcon }