File viewer fixes

res/static/script/Viewer.js

@@ -65,3 +65,40 @@ function escapeHTML(str) {
 		.replace(/>/g, '>')
 		.replace(/"/g, '"');
 }
+
+// Register keyboard shortcuts
+document.addEventListener("keydown", function(event){
+	if (event.ctrlKey || event.altKey) {
+		return // prevent custom shortcuts from interfering with system shortcuts
+	}
+
+	switch (event.which) {
+	case 65: // A or left arrow key go to previous file
+	case 37:
+		ListNavigator.previousItem();
+		break;
+	case 68: // D or right arrow key go to next file
+	case 39:
+		ListNavigator.nextItem();
+		break;
+	case 83:
+		if (event.shiftKey) {
+			Toolbar.downloadList(); // SHIFT + S downloads all files in list
+		} else {
+			Toolbar.download(); // S to download the current file
+		}
+		break;
+	case 82: // R to toggle list shuffle
+		ListNavigator.toggleShuffle();
+		break;
+	case 67: // C to copy to clipboard
+		Toolbar.copyUrl();
+		break;
+	case 73: // I to open the details window
+		DetailsWindow.toggle();
+		break;
+	case 81: // Q to close the window
+		window.close();
+		break;
+	}
+});