[cristina-hidalgo-tecnativa]

Odoo added an expand/compress button to the full message composer (odoo/odoo#242468), with its own state. This module already adds one to every dialog, so the composer showed two buttons, and with web_dialog_size.default_maximize enabled Odoo's icon didn't match the dialog size.

• Hide core's button so only this module's is shown.
• Use core's fs size and icons (expand_content / close_fullscreen).

Core's button only exists in ActionDialog, so extending it wouldn't cover the other dialogs.

@Tecnativa TT64890
@pedrobaeza @carlos-lopez-tecnativa

[pedrobaeza]

Tested and working.

[Andrii9090-tecnativa]

Tested on runboat

[carlos-lopez-tecnativa]

I also see two buttons in other dialogs, for example, when you use Create and edit... in a many2one field:

This makes me think that Odoo already supports this in the core Dialog, but only displays the button when onExpand is defined:
https://github.com/odoo/odoo/blob/dd797414fa250a039c6bf494cfb281d67b4bf83c/addons/web/static/src/core/dialog/dialog.xml#L39

[carlos-lopez-tecnativa]

I'm not sure whether resizing the dialog re-renders the whole view and reloads the record, but when I try to add a custom filter, this popup is very slow. Other dialogs work fine, but this one is very slow.

Could you check this? Or is this standard Odoo behavior?

2026-10-28.09-37-29.mp4

[cristina-hidalgo-tecnativa]

I'm not sure whether resizing the dialog re-renders the whole view and reloads the record, but when I try to add a custom filter, this popup is very slow. Other dialogs work fine, but this one is very slow.

Could you check this? Or is this standard Odoo behavior?
2026-10-28.09-37-29.mp4

I noticed the URL has debug=assets, which makes everything noticeably slower in Odoo, and the "Loading..." indicator also shows up when navigating menus with no dialog involved.

Could you check whether it's still slow without debug=assets, and compare with the module uninstalled? If it's still slow only with the module, I'll look into it.

[carlos-lopez-tecnativa]

I noticed the URL has debug=assets, which makes everything noticeably slower in Odoo, and the "Loading..." indicator also shows up when navigating menus with no dialog involved.

Could you check whether it's still slow without debug=assets, and compare with the module uninstalled? If it's still slow only with the module, I'll look into it.

OK, I tested it without debug mode in three different environments, in this order: Odoo runbot, locally, and OCA runboat.

On runbot, even with network latency, it works fine: I dragged and dropped the popup, and it rendered quickly.
Locally, it's the same: it renders quickly.
But on OCA runboat, rendering is slow even though I didn't install this module, so please ignore my comment. The slowness comes from something else (hardware, network latency, etc.).

2026-10-28.11-09-36.mp4

Anyway, please check my other comment:
#3763 (review)

[pedrobaeza]

I think it has to do with being http. Switch the URL to https (accepting the warning), and please try again.

[carlos-lopez-tecnativa]

I think it has to do with being http. Switch the URL to https (accepting the warning), and please try again.

You're right! With https, it works as expected.

[cristina-hidalgo-tecnativa]

I also see two buttons in other dialogs, for example, when you use Create and edit... in a many2one field:

This makes me think that Odoo already supports this in the core Dialog, but only displays the button when onExpand is defined: https://github.com/odoo/odoo/blob/dd797414fa250a039c6bf494cfb281d67b4bf83c/addons/web/static/src/core/dialog/dialog.xml#L39

In "Create and edit..." the two buttons do different things: the core one (shown because FormViewDialog passes onExpand) opens the record in the full form view (see FormViewDialog.onExpand, and the core tests, where a middle click opens it in a new window). This module's one maximizes the dialog.

You're right that onExpand is a generic Dialog prop, though: e.g. html_editor's history dialog uses it to toggle fullscreen. So extending core's button would mean reusing it per dialog, and we couldn't do it for the ones where it already means something else: FormViewDialog (L116) uses it to open the full form view, while html_editor's history dialog (xml, js) uses it to toggle fullscreen.

[carlos-lopez-tecnativa]

In short, we're going back to the original icons instead of using the Odoo icons, to avoid displaying the same icon twice.
In some dialogs, two different icons are displayed; this could be added to the ROADMAP. Anyway, it works in the full composer, which was the initial request, so let's move forward to avoid blocking this.