From 288df6a7bf8b933e2dc499e38f4915fcf974c14b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jes=C3=BAs?= <heckyel@hyperbola.info>
Date: Mon, 30 Dec 2019 15:55:13 -0500
Subject: backport

- Flush caches on upgrade
- Properly handle FrameModule's unloading
- Use the new module and remove the old implementation
---
 frameScript.js | 43 ++++++++++++++++---------------------------
 1 file changed, 16 insertions(+), 27 deletions(-)

(limited to 'frameScript.js')

diff --git a/frameScript.js b/frameScript.js
index e4b2dbe..cc1a564 100644
--- a/frameScript.js
+++ b/frameScript.js
@@ -21,54 +21,43 @@
     uMatrix Home: https://github.com/gorhill/uMatrix
 */
 
-/******************************************************************************/
+'use strict';
 
-var locationChangeListener; // Keep alive while frameScript is alive
-
-(function() {
-
-    'use strict';
+Components.utils.import('chrome://ematrix/content/lib/FrameModule.jsm');
 
-    /******************************************************************************/
-
-    let {contentObserver, LocationChangeListener} = Components.utils.import(
-        Components.stack.filename.replace('Script', 'Module'),
-        null
-    );
+var locationChangeListener; // Keep alive while frameScript is alive
 
-    let injectContentScripts = function(win) {
-        if ( !win || !win.document ) {
+(function () {
+    let injectContentScripts = function (win) {
+        if (!win || !win.document) {
             return;
         }
 
         contentObserver.observe(win.document);
 
-        if ( win.frames && win.frames.length ) {
-            let i = win.frames.length;
-            while ( i-- ) {
+        if (win.frames && win.frames.length) {
+            for (let i = win.frames.length; i>0; --i) {
                 injectContentScripts(win.frames[i]);
             }
         }
     };
 
-    let onLoadCompleted = function() {
+    let onLoadCompleted = function () {
         removeMessageListener('ematrix-load-completed', onLoadCompleted);
         injectContentScripts(content);
     };
 
     addMessageListener('ematrix-load-completed', onLoadCompleted);
 
-    if ( docShell ) {
+    if (docShell) {
         let Ci = Components.interfaces;
-        let wp = docShell.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIWebProgress);
+        let wp = docShell
+            .QueryInterface(Ci.nsIInterfaceRequestor)
+            .getInterface(Ci.nsIWebProgress);
         let dw = wp.DOMWindow;
-        if ( dw === dw.top ) {
+
+        if (dw === dw.top) {
             locationChangeListener = new LocationChangeListener(docShell);
         }
-    };
-
-    /******************************************************************************/
-
+    }
 })();
-
-/******************************************************************************/
-- 
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