firefox-extensions.default-zoom: load the zoom from managed storage

this allows it to be configurable per device

this changeset probably does *too* much -- a lot can likely be dropped

hosts/common/programs/firefox/addons.nix

@@ -69,6 +69,7 @@ in
     };
 
     # uBlock configuration:
+    # TODO: shouldn't this be ~/.mozilla/managed-storage, not ~/.mozilla/firefox/managed-storage?
     fs.".mozilla/firefox/managed-storage/uBlock0@raymondhill.net.json".symlink.target = cfg.addons.ublock-origin.package.makeConfig {
       # more filter lists are available here:
       # - <https://easylist.to>
@@ -96,5 +97,16 @@ in
         # (getUasset "ublock-annoyances-cookies")
       ];
     };
+
+    fs.".mozilla/managed-storage/default-zoom@uninsane.org.json".symlink.text = ''
+      {
+        "name": "default-zoom@uninsane.org",
+        "description": "ignored",
+        "type": "storage",
+        "data": {
+          "zoom": 1.70
+        }
+      }
+    '';
   };
 }

hosts/common/programs/firefox/default.nix

@@ -278,6 +278,7 @@ in
       # redirect librewolf configs to the firefox configs; this way addons don't have to care about the firefox/librewolf distinction.
       # XXX: this `../` logic assumes `dotDir` is a direct child of ~, and not a path with multiple components!
       fs."${cfg.browser.dotDir}/profiles.ini".symlink.target = "../.mozilla/firefox/profiles.ini";
+      # TODO: shouldn't this be ~/.mozilla/managed-storage, not ~/.mozilla/firefox/managed-storage?
       fs."${cfg.browser.dotDir}/managed-storage".symlink.target = "../.mozilla/firefox/managed-storage";
     };
 

pkgs/by-name/firefox-extensions/default-zoom/background.js

@@ -1,5 +1,7 @@
 // simplified implementation of <https://github.com/jamielinux/default-zoom>
-//
+
+console.info("[default-zoom]", "background.js: initializing");
+
 // XXX(2024-12-01): this implementation works for any tabs loaded with ctrl+t, and ctrl+l.
 // it works for the homepage too, except for a first-run edge case wherein the homepage is loaded
 // before any extensions are loaded
@@ -10,21 +12,46 @@
 // - desko: youtube.com is most comfortable 1.6 - 1.8
 // - desko: wikipedia.org is most comfortable 1.7 - 1.9
 // - lappy: amazon.com is most comfortable 1.0 - 1.2
-let defaultZoom = 1.7;
+let defaultZoom = 1;
+
+// retrieving settings:
+// - <https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons/WebExtensions/API/storage>
+// - manifest.json requires `permissions = [ "storage" ]`
+// - retrieve with `browser.storage.{backend}.get(...)`
+//   - e.g. <https://github.com/mdn/webextensions-examples/blob/main/stored-credentials/storage.js>
+function applyConfig(storedConfig) {
+  console.info("[default-zoom]", "applyConfig");
+  if (storedConfig && storedConfig.zoom) {
+    console.info("[default-zoom]", "applyConfig -> zoom", storedConfig.zoom);
+    defaultZoom = storedConfig.zoom;
+  }
+}
+
+function onConfigError(error) {
+  console.info("[default-zoom]", "onConfigError");
+  console.error(error);
+}
 
 function setZoom(tabId, changeInfo) {
+  console.info("[default-zoom]", "setZoom");
   if (changeInfo.status) {
+    console.info("[default-zoom]", "setZoom -> changeInfo.status exists");
     const gettingZoom = browser.tabs.getZoom(tabId);
     gettingZoom.then((currentZoom) => {
+      console.info("[default-zoom]", "setZoom -> tabs.getZoom complete");
       if (defaultZoom !== 1 && currentZoom === 1) {
+        console.info("[default-zoom]", "setZoom -> tabs.setZoom", defaultZoom);
         browser.tabs.setZoom(tabId, defaultZoom);
       }
     });
   }
 }
 
+browser.storage.managed.get("zoom").then(applyConfig, onConfigError);
+
+browser.tabs.onUpdated.addListener(setZoom);
 browser.tabs.onCreated.addListener((tab) => {
   browser.tabs.setZoom(tab.id, defaultZoom);
 });
 
-browser.tabs.onUpdated.addListener(setZoom);
+console.info("[default-zoom]", "background.js: initialized");

pkgs/by-name/firefox-extensions/default-zoom/default.nix

@@ -13,7 +13,7 @@ stdenvNoCC.mkDerivation {
   buildPhase = ''
     runHook preBuild
     zip -j firefox.zip \
-      background.html background.js manifest.json
+      background.html background.js managed_storage.json manifest.json
     runHook postBuild
   '';
 
@@ -23,5 +23,5 @@ stdenvNoCC.mkDerivation {
     runHook postInstall
   '';
 
-  passthru.extid = "@default-zoom";
+  passthru.extid = "default-zoom@uninsane.org";
 }

pkgs/by-name/firefox-extensions/default-zoom/managed_storage.json

@@ -0,0 +1,11 @@
+{
+  "$schema": "http://json-schema.org/draft-03/schema#",
+  "type": "object",
+  "properties": {
+    "zoom": {
+      "title": "zoom",
+      "description": "default zoom",
+      "type": "number"
+    }
+  }
+}

pkgs/by-name/firefox-extensions/default-zoom/manifest.json

@@ -1,17 +1,26 @@
 {
   "manifest_version": 2,
+
+  "name": "Default Zoom",
+  "short_name": "Default Zoom",
+  "description": "statically configure a default zoom value for new tabs",
+  "author": "colin@uninsane.org",
+  "version": "0.1.0",
+
   "browser_specific_settings": {
     "gecko": {
-      "id": "@default-zoom"
+      "id": "default-zoom@uninsane.org",
+      "strict_min_version": "57.0"
     }
   },
-  "name": "Default zoom",
-  "description": "statically configure a default zoom value for new tabs",
-  "version": "0.1.0",
+
   "background": {
     "scripts": [
       "background.js"
     ]
   },
-  "permissions": []
+  "permissions": [
+    "storage",
+    "unlimitedStorage"
+  ]
 }