Remove NW.js

TODO.md

@@ -206,10 +206,10 @@ might be a pointer events spec interpretation issue, and it could easily be that
 
 ### Native App
 
-* Switch from NW.js to Electron
-* Use a boilerplate for autoupdating and such
+* Use [Electron Forge](https://electronforge.io/)
+* Enable autoupdating
 * File association support
-* Proper clipboard support; Electron has an API for copying images
+* [Copy images to the clipboard](https://electronjs.org/docs/api/clipboard#clipboardwriteimageimage-type)
 * A dialogue when closing
 * Subwindows outside the main window
 * A different way of handling always-saved documents

package.json

@@ -15,22 +15,20 @@
     "edit",
     "canvas",
     "app",
-    "nw-app",
-    "web-app"
+    "web-app",
+    "recreation",
+    "clone",
+    "image-editing",
+    "image-editor",
+    "bitmap"
   ],
   "main": "index.html",
   "scripts": {
-    "start": "nw",
     "dev": "live-server",
     "test": "parallelshell \"http-server -p 11822 --silent\" \"casperjs test test.js --engine=slimerjs\"",
     "test-verbose": "parallelshell \"http-server -p 11822\" \"casperjs test test.js --engine=slimerjs --verbose --log-level=debug\""
   },
-  "window": {
-    "icon": "images/icons/48.png",
-    "toolbar": false
-  },
   "dependencies": {
-    "nw": "^0.27.4",
     "wallpaper": "^2.6.0"
   },
   "repository": {

src/functions.js

@@ -1076,7 +1076,7 @@ function set_as_wallpaper_centered(c){
 	}
 
 	// TODO: move the chrome handling into chrome-app.js using the system-specific override
-	// can do it for nw.js too, although that doesn't have a separate file yet (i.e. nw-app.js)
+	// can do it for nw.js / electron too
 
 	if(window.chrome && chrome.wallpaper){
 		get_array_buffer_from_canvas(c)
@@ -1090,11 +1090,14 @@ function set_as_wallpaper_centered(c){
 			}).catch(function(error) {
 				show_error_message("Failed to set as desktop background: couldn't read image file.", error);
 			});
-	}else if(window.require){
+	}
+	/*else if(window.require){
+		// TODO: for electron, app.getPath("userData")
 		var gui = require("nw.gui");
 		var fs = require("fs");
 		var wallpaper = require("wallpaper");
 
+		// TODO: don't use base64
 		var base64 = c.toDataURL().replace(/^data:image\/png;base64,/, "");
 		var imgPath = require("path").join(gui.App.dataPath, "bg.png");
 
@@ -1108,7 +1111,8 @@ function set_as_wallpaper_centered(c){
 				}
 			});
 		});
-	}else{
+	}*/
+	else{
 		c.toBlob(function(blob){
 			sanity_check_blob(blob, function(){
 				saveAs(blob, file_name.replace(/\.(bmp|png|gif|jpe?g|tiff|webp)$/, "") + " wallpaper.png");