tampermonkey script: support site styles

plugins/tampermonkey-mzte/assets/site_styles/discord.com.css

@@ -0,0 +1,4 @@
+/* Hide the stupid rounding masks on server icons */
+:root foreignObject {
+    mask: none !important;
+}

plugins/tampermonkey-mzte/build.hxml

@@ -2,4 +2,5 @@
 -main Main
 --macro Macro.init()
 
+-D js-es=6
 -js script.js

plugins/tampermonkey-mzte/src/Macro.hx

@@ -1,9 +1,12 @@
 #if macro
 import haxe.macro.Compiler;
 import haxe.macro.Context;
+import sys.FileSystem;
 import sys.io.File;
 #end
 
+using StringTools;
+
 macro function init() {
     var oldHeader = Context.definedValue("source-header");
     var header = Std.string(File.read("assets/header.txt").readAll());
@@ -15,3 +18,14 @@ macro function fileContent(path:String):haxe.macro.Expr.ExprOf<String> {
     return macro $v{Std.string(File.read(path).readAll())};
 }
 
+macro function siteStyles():haxe.macro.Expr.ExprOf<Map<String, String>> {
+    var map:Array<haxe.macro.Expr> = [];
+
+    for (f in FileSystem.readDirectory("assets/site_styles")) {
+        if (f.endsWith(".css")) {
+            map.push(macro $v{f.substr(0, f.length - 4)} => Macro.fileContent($v{'assets/site_styles/$f'}));
+        }
+    }
+
+    return macro $a{map};
+}

plugins/tampermonkey-mzte/src/Main.hx

@@ -1,6 +1,8 @@
 import js.Browser;
 
 function main() {
+    var siteStyles = Macro.siteStyles();
+
     var ownStyle = Browser.document.createStyleElement();
     ownStyle.innerHTML = Macro.fileContent("assets/own_style.css");
 
@@ -13,6 +15,14 @@ function main() {
         if (!actions.ToggleStyleAction.blacklist.has(Browser.window.location.hostname)) {
             Browser.document.body.appendChild(style);
         }
+
+        var siteStyle = siteStyles[Browser.window.location.hostname];
+        if (siteStyle != null) {
+            var siteStyleElem = Browser.document.createStyleElement();
+            siteStyleElem.innerHTML = siteStyle;
+            Browser.document.body.appendChild(siteStyleElem);
+            Browser.console.log("added site style: ", siteStyleElem);
+        }
     });
 
     new actions.InfoAction().register();