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Patch Zen window sync blank tabs

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rope 2026-10-05 11:58:58 +01:00
parent 8793ecea4d
commit 81a5fef0b3
3 changed files with 278 additions and 33 deletions
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96
apps/zen.nix
View file

@ -1,6 +1,19 @@
#./apps/zen.nix
{ inputs, pkgs, lib, config, ... }:
let
{
inputs,
pkgs,
lib,
config,
...
}: let
# Zen keeps one live docshell for each logical tab and mirrors about:blank
# placeholders into the other synced windows. Upstream 1.23b changes the
# placeholder's ownership flags before confirming that the docshell swap
# succeeded (zen-browser/desktop#15702), so one failed swap can promote the
# blank placeholder and make later selections show "New Tab". Patch the
# shipped browser module until Zen includes an upstream fix.
windowSyncPatch = ../patches/zen-browser/window-sync-commit-ownership-after-swap.patch;
# Autoconfig (mozilla.cfg) runs privileged JS in the parent process at
# startup — the only scriptable way into chrome, since Gecko has no reload
# for userChrome.css and Zen exposes no command for one.
@ -97,33 +110,62 @@ let
Components.utils.reportError("zen-theme: " + e);
}
'';
in
{
config = lib.mkIf (lib.elem config.networking.hostName [ "FredOS-Gaming" "FredOS-Macbook" ]) {
in {
config = lib.mkIf (lib.elem config.networking.hostName ["FredOS-Gaming" "FredOS-Macbook"]) {
environment.systemPackages = [
((inputs.zen-browser.packages.${pkgs.stdenv.hostPlatform.system}.default.override {
# Lands in defaults/pref/autoconfig.js, the only place this pref is
# read — setting it from mozilla.cfg is too late to unsandbox itself.
extraAutoConfig = ''
pref("general.config.sandbox_enabled", false);
pref("fred.zenTheme.autoconfig", true);
'';
extraPrefs = themeHotReload;
}).overrideAttrs (old: {
# wrapFirefox copies the executable it knows by name so that Gecko,
# which derives its application directory from the binary's *resolved*
# path, lands in the wrapper's tree. It knows this one as "zen-beta"
# (binaryName), but the binary actually exec'd is lib/zen-bin-*/zen —
# left behind as a symlink into the unwrapped package. So the app dir
# resolved to the unwrapped tree, which has no defaults/pref and no
# mozilla.cfg, and every pref and script above was silently skipped.
buildCommand = old.buildCommand + ''
for exe in "$out"/lib/zen*/zen "$out"/lib/zen*/zen-bin; do
cp --remove-destination "$(readlink -f "$exe")" "$exe"
chmod u+w "$exe"
done
'';
}))
# Lands in defaults/pref/autoconfig.js, the only place this pref is
# read — setting it from mozilla.cfg is too late to unsandbox itself.
extraAutoConfig = ''
pref("general.config.sandbox_enabled", false);
pref("fred.zenTheme.autoconfig", true);
'';
extraPrefs = themeHotReload;
}).overrideAttrs (old: {
# wrapFirefox copies the executable it knows by name so that Gecko,
# which derives its application directory from the binary's *resolved*
# path, lands in the wrapper's tree. It knows this one as "zen-beta"
# (binaryName), but the binary actually exec'd is lib/zen-bin-*/zen —
# left behind as a symlink into the unwrapped package. So the app dir
# resolved to the unwrapped tree, which has no defaults/pref and no
# mozilla.cfg, and every pref and script above was silently skipped.
buildCommand =
old.buildCommand
+ ''
for exe in "$out"/lib/zen*/zen "$out"/lib/zen*/zen-bin; do
cp --remove-destination "$(readlink -f "$exe")" "$exe"
chmod u+w "$exe"
done
# Zen ships its privileged browser modules inside browser/omni.ja.
# Repack that archive with the local Window Sync fix; keeping this as
# a normal patch makes an upstream update fail loudly when the source
# changes instead of silently dropping the workaround.
for omni in "$out"/lib/zen*/browser/omni.ja; do
[ -f "$omni" ] || continue
cp "$(readlink -f "$omni")" "$omni.local"
mv -f "$omni.local" "$omni"
omniWork="$(mktemp -d)"
${pkgs.unzip}/bin/unzip -q "$omni" -d "$omniWork" || {
unzipStatus=$?
# Mozilla's startup-optimized omnijar places its central
# directory first. Info-ZIP extracts it correctly but exits 2
# after warning about the nonstandard layout.
[ "$unzipStatus" -eq 2 ] || exit "$unzipStatus"
}
${pkgs.patch}/bin/patch --directory="$omniWork" -p1 \
< ${windowSyncPatch}
rm "$omni"
(
cd "$omniWork"
${pkgs.zip}/bin/zip -0 -X -q -r "$omni" .
)
rm -rf "$omniWork"
done
'';
}))
];
};
}

12
flake.lock generated
View file

@ -299,11 +299,11 @@
},
"nixpkgs_4": {
"locked": {
"lastModified": 1789286504,
"narHash": "sha256-eiEK7cKZORNEvX0GeF3RtNEF/JXhgf2RqSp3230q13E=",
"lastModified": 1790689126,
"narHash": "sha256-ilerN1WLSvF+HMjziC/Wv99J5y02maDH+6hZPwsORKg=",
"owner": "nixos",
"repo": "nixpkgs",
"rev": "ef34387ddd751e1ab8857adf4676492d32eb24ec",
"rev": "b4fd65b198c599cbe814fcb9f42d25d021595ec9",
"type": "github"
},
"original": {
@ -526,11 +526,11 @@
"nixpkgs": "nixpkgs_4"
},
"locked": {
"lastModified": 1789702344,
"narHash": "sha256-DfevaOxGu6NKUF+q5hUAg7kFscWQvuC9Yd/CgR4qpgc=",
"lastModified": 1791022445,
"narHash": "sha256-jr7YVkvOYS+bJjzBwoqtN8b8inJN8UDWziWufAWH1SY=",
"owner": "0xc000022070",
"repo": "zen-browser-flake",
"rev": "ef5fe624be04120db77c08c5df6f75a6a4201517",
"rev": "e56900732d1fa6f360db502451a457ffe3ca1e6e",
"type": "github"
},
"original": {

203
patches/zen-browser/window-sync-commit-ownership-after-swap.patch Normal file
View file

@ -0,0 +1,203 @@
diff --git a/modules/zen/ZenWindowSync.sys.mjs b/modules/zen/ZenWindowSync.sys.mjs
index 8daa5b3..33474a5 100644
--- a/modules/zen/ZenWindowSync.sys.mjs
+++ b/modules/zen/ZenWindowSync.sys.mjs
@@ -781 +781 @@ class nsZenWindowSync {
- return;
+ return false;
@@ -785 +785 @@ class nsZenWindowSync {
- return;
+ return false;
@@ -787 +787 @@ class nsZenWindowSync {
- await this.#styleSwapedBrowsers(aOurTab, aOtherTab, () => {
+ return this.#styleSwapedBrowsers(aOurTab, aOtherTab, () => {
@@ -789 +789 @@ class nsZenWindowSync {
- this.#swapBrowserDocShellsInner(aOurTab, aOtherTab);
+ return this.#swapBrowserDocShellsInner(aOurTab, aOtherTab);
@@ -794,0 +795 @@ class nsZenWindowSync {
+ return false;
@@ -829,7 +830,8 @@ class nsZenWindowSync {
- tabListener = new otherTabBrowser.zenTabProgressListener(
- aTab,
- otherBrowser,
- true,
- false
- );
- otherTabBrowser.zenSetTabProgressListener(aTab, tabListener);
+ try {
+ tabListener = new otherTabBrowser.zenTabProgressListener(
+ aTab,
+ otherBrowser,
+ true,
+ false
+ );
+ otherTabBrowser.zenSetTabProgressListener(aTab, tabListener);
@@ -837,3 +839,6 @@ class nsZenWindowSync {
- const notifyAll = Ci.nsIWebProgress.NOTIFY_ALL;
- filter.addProgressListener(tabListener, notifyAll);
- otherBrowser.webProgress.addProgressListener(filter, notifyAll);
+ const notifyAll = Ci.nsIWebProgress.NOTIFY_ALL;
+ filter.addProgressListener(tabListener, notifyAll);
+ otherBrowser.webProgress.addProgressListener(filter, notifyAll);
+ } catch (e) {
+ console.error(`Error restoring tab progress listener:`, e);
+ }
@@ -899 +904 @@ class nsZenWindowSync {
- return;
+ return false;
@@ -903,0 +909 @@ class nsZenWindowSync {
+ let didSwap = false;
@@ -913,0 +920 @@ class nsZenWindowSync {
+ didSwap = true;
@@ -918,0 +926 @@ class nsZenWindowSync {
+ return;
@@ -962,0 +971,3 @@ class nsZenWindowSync {
+ if (!didSwap) {
+ return false;
+ }
@@ -972,9 +983,13 @@ class nsZenWindowSync {
- for (let attr of kAttributesToRemove) {
- aOtherTab.removeAttribute(attr);
- }
- if (focus) {
- // Recalculate the focus in order to allow the user to continue typing
- // inside the web content area without having to click outside and back in.
- aOurTab.linkedBrowser.blur();
- aOurTab.documentGlobal.gBrowser._adjustFocusAfterTabSwitch(aOurTab);
- aOurTab.linkedBrowser.docShellIsActive = true;
+ try {
+ for (let attr of kAttributesToRemove) {
+ aOtherTab.removeAttribute(attr);
+ }
+ if (focus) {
+ // Recalculate the focus in order to allow the user to continue typing
+ // inside the web content area without having to click outside and back in.
+ aOurTab.linkedBrowser.blur();
+ aOurTab.documentGlobal.gBrowser._adjustFocusAfterTabSwitch(aOurTab);
+ aOurTab.linkedBrowser.docShellIsActive = true;
+ }
+ } catch (e) {
+ console.error(`Error cleaning up browser after docshell swap:`, e);
@@ -981,0 +997 @@ class nsZenWindowSync {
+ return true;
@@ -997,7 +1013,17 @@ class nsZenWindowSync {
- const browserBlob =
- await aOtherTab.documentGlobal.PageThumbs.captureToBlob(
- aOtherTab.linkedBrowser,
- {
- fullScale: true,
- fullViewport: true,
- backgroundColor: "transparent",
+ let mySrc = "";
+ try {
+ const browserBlob =
+ await aOtherTab.documentGlobal.PageThumbs.captureToBlob(
+ aOtherTab.linkedBrowser,
+ {
+ fullScale: true,
+ fullViewport: true,
+ backgroundColor: "transparent",
+ }
+ );
+
+ mySrc = await new Promise(r => {
+ const reader = new FileReader();
+ if (!browserBlob) {
+ r("");
+ return;
@@ -1005,17 +1031,9 @@ class nsZenWindowSync {
- );
-
- let mySrc = await new Promise(r => {
- const reader = new FileReader();
- if (!browserBlob) {
- r("");
- return;
- }
- reader.readAsDataURL(browserBlob);
- reader.onloadend = function () {
- // result includes identifier 'data:image/png;base64,' plus the base64 data
- r(reader.result);
- };
- reader.onerror = function () {
- r("");
- };
- });
+ reader.readAsDataURL(browserBlob);
+ reader.onloadend = function () {
+ // result includes identifier 'data:image/png;base64,' plus the base64 data
+ r(reader.result);
+ };
+ reader.onerror = function () {
+ r("");
+ };
+ });
@@ -1023,2 +1041,7 @@ class nsZenWindowSync {
- await this.#createPseudoImageForBrowser(otherBrowser, mySrc);
- callback();
+ await this.#createPseudoImageForBrowser(otherBrowser, mySrc);
+ } catch (e) {
+ // The thumbnail only hides the visual transition. It must not block
+ // the docshell transfer or leave the global swap queue pending.
+ console.error(`Error preparing docshell swap styling:`, e);
+ }
+ const didSwap = callback();
@@ -1026,5 +1049,10 @@ class nsZenWindowSync {
- otherBrowser.setAttribute("zen-pseudo-hidden", "true");
- ourBrowser.removeAttribute("zen-pseudo-hidden");
- this.#maybeRemovePseudoImageForBrowser(ourBrowser);
- ourBrowser.focus();
- resolve();
+ try {
+ otherBrowser.setAttribute("zen-pseudo-hidden", "true");
+ ourBrowser.removeAttribute("zen-pseudo-hidden");
+ this.#maybeRemovePseudoImageForBrowser(ourBrowser);
+ ourBrowser.focus();
+ } catch (e) {
+ console.error(`Error cleaning up docshell swap styling:`, e);
+ } finally {
+ resolve(didSwap);
+ }
@@ -1126 +1153,0 @@ class nsZenWindowSync {
- targetTab._zenContentsVisible = true;
@@ -1130 +1157 @@ class nsZenWindowSync {
- delete tab._zenContentsVisible;
+ let didSwap = false;
@@ -1132 +1159 @@ class nsZenWindowSync {
- this.#swapBrowserDocShellsInner(targetTab, tab, {
+ didSwap = this.#swapBrowserDocShellsInner(targetTab, tab, {
@@ -1141,0 +1169,5 @@ class nsZenWindowSync {
+ if (!didSwap) {
+ continue;
+ }
+ targetTab._zenContentsVisible = true;
+ delete tab._zenContentsVisible;
@@ -1186,3 +1218,8 @@ class nsZenWindowSync {
- otherTabToShow._zenContentsVisible = true;
- delete tab._zenContentsVisible;
- await this.#swapBrowserDocShellsAsync(otherTabToShow, tab);
+ const didSwap = await this.#swapBrowserDocShellsAsync(
+ otherTabToShow,
+ tab
+ );
+ if (didSwap) {
+ otherTabToShow._zenContentsVisible = true;
+ delete tab._zenContentsVisible;
+ }
@@ -1204 +1240,0 @@ class nsZenWindowSync {
- selectedTab._zenContentsVisible = true;
@@ -1206 +1241,0 @@ class nsZenWindowSync {
- delete otherSelectedTab._zenContentsVisible;
@@ -1208 +1243,8 @@ class nsZenWindowSync {
- this.#swapBrowserDocShellsAsync(selectedTab, otherSelectedTab)
+ this.#swapBrowserDocShellsAsync(selectedTab, otherSelectedTab).then(
+ didSwap => {
+ if (didSwap) {
+ selectedTab._zenContentsVisible = true;
+ delete otherSelectedTab._zenContentsVisible;
+ }
+ }
+ )
@@ -1209,0 +1252,2 @@ class nsZenWindowSync {
+ } else {
+ selectedTab._zenContentsVisible = true;