feat: Enable original extensions panel on hide-unified-extensions-button: false

[blakegearin]

Summary

• Updated ZenSiteDataPanel.sys.mjs to support multiple panels and pass relevant objects to browser-addons.js

• Patched browser-addons.js to accept panel objects

• Patched navigator-toolbox.js to get panel objects from window.gZenSiteDataPanel

• Updated zen-single-components.css to conditionally hide extensions on unified panel

Screenshots

• hide-unified-extensions-button: true

  

• hide-unified-extensions-button: false

  

Notes

• Toggling hide-unified-extensions-button does require a browser restart to fully take effect and switch over. This is because the list of extensions are added on browser initialization. It does not appear browser/components/customizableui/CustomizableUI.sys.mjs is able to natively support adding and removing extensions from multiple areas

[mr-cheffy]

Instead of choosing what panel should be used every time, we could just revert these changes if the preference is off:

desktop/src/browser/base/content/browser-addons-js.patch

Lines 44 to 52 in 0899621

	if (!this._panel) {
	- let template = document.getElementById(
	- "unified-extensions-panel-template"
	- );
	- template.replaceWith(template.content);
	- this._panel = document.getElementById("unified-extensions-panel");
	+ this._panel = document.getElementById("zen-unified-site-data-panel");
	let customizationArea = this._panel.querySelector(
	"#unified-extensions-area"

desktop/src/browser/base/content/browser-addons-js.patch

Line 27 in 0899621

- const anchorID = "unified-extensions-button";

Or at least simply override it? gUnifiedExtensions._panel = ...

[blakegearin]

Instead of choosing what panel should be used every time, we could just revert these changes if the preference is off:
...
Or at least simply override it? gUnifiedExtensions._panel = ...

Yes, that's true. Effectively that's what setMainPanel was for, but that approach is cleaner. And we can safely remove the patches on get panel() which is a nice side effect

[mr-cheffy]

I'll give it a test try later today, looks good overall

[mr-cheffy]

Let me know once its finished for review @blakegearin

Please run npm run lint:fix as well and patches seems to fail importing? https://github.com/zen-browser/desktop/actions/runs/19818358014/job/56774645713?pr=11335

[blakegearin]

@mr-cheffy Thanks. Should be good to go.