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This PR disconnects a signal callback that is registered on FlView::keymap. Since #34351 removes the disposal of this object, the signal is no longer automatically disconnected.

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dkwingsmt commented Jul 7, 2022

@robert-ancell I implemented disconnection on disposal. However, I don't think we should also disconnect in fl_view_remove. The fl_view_remove implements GtkContainer::remove, which is used when adding another widget as the child as FlView. Besides, if we do, then we should only connect the signal in add, instead of object_constructed.

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@robert-ancell I implemented disconnection on disposal. However, I don't think we should also disconnect in fl_view_remove. The fl_view_remove implements GtkContainer::remove, which is used when adding another widget as the child as FlView. Besides, if we do, then we should only connect the signal in add, instead of object_constructed.

I suggested it should also be disconnected in remove because the reference to keymap is dropped, so it wasn't clear to me if signals should be received about it anymore. But that code is no longer there, so I don't see any reason to do that anymore.

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LGTM

g_clear_object(&self->engine);
g_clear_object(&self->accessibility_plugin);
g_clear_object(&self->keyboard_manager);
g_signal_handler_disconnect(self->keymap, self->keymap_keys_changed_cb_id);
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Hey, I've started seeing warnings like

(bug:74019): GLib-GObject-WARNING **: 11:15:08.697: ../../../gobject/gsignal.c:2731: instance '0x55e1c3ea0200' has no handler with id '255'

when closing Flutter apps because GObject's dispose() method may be called multiple times. Here's a fix: #35490

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