feat(app): handle download links

Signed-off-by: Grigorii K. Shartsev <[email protected]>

src/app/externalLinkHandlers.js

@@ -34,7 +34,6 @@ function isExternalLink(url) {
  * @return {{action: 'deny'} | {action: 'allow', outlivesOpener?: boolean, overrideBrowserWindowOptions?: import('electron').BrowserWindowConstructorOptions}}
  */
 function windowOpenExternalLinkHandler(details, browserWindowOptions = {}) {
-	// TODO: Should handle different types of details.disposition? I.e. save-to-disk?
 	if (isExternalLink(details.url)) {
 		shell.openExternal(details.url)
 		return { action: 'deny' }

src/main.js

@@ -275,6 +275,8 @@ app.whenReady().then(async () => {
 		isInWindowRelaunch = false
 	})
 
+	ipcMain.on('app:downloadURL', (event, url) => mainWindow.webContents.downloadURL(url))
+
 	// On OS X it's common to re-create a window in the app when the
 	// dock icon is clicked and there are no other windows open.
 	app.on('activate', () => {

src/preload.js

@@ -106,6 +106,11 @@ const TALK_DESKTOP = {
 	 * @return {Promise<void>}
 	 */
 	setAppConfig: (key, value) => ipcRenderer.invoke('app:config:set', key, value),
+	/**
+	 * Trigger download of a URL
+	 * @param {string} url - URL to download
+	 */
+	downloadURL: (url) => ipcRenderer.send('app:downloadURL', url),
 	/**
 	 * Send appData to main process on restore
 	 *

src/shared/setupWebPage.js

@@ -199,6 +199,19 @@ function applyHeaderHeight() {
 	document.documentElement.style.setProperty('--header-height', `${TITLE_BAR_HEIGHT}px`, 'important')
 }
 
+/**
+ * Handle download links
+ */
+function applyDownloadLinkHandler() {
+	document.addEventListener('click', (event) => {
+		const link = event.target.closest('a')
+		if (link && link.hasAttribute('download')) {
+			event.preventDefault()
+			window.TALK_DESKTOP.downloadURL(link.href)
+		}
+	})
+}
+
 /**
  * Make all required initial setup for the web page for authorized user: server-rendered data, globals and ect.
  */
@@ -214,4 +227,5 @@ export async function setupWebPage() {
 	applyHeaderHeight()
 	applyAxiosInterceptors()
 	await applyL10n()
+	applyDownloadLinkHandler()
 }