Re: [gedit-list] Event For Shutdown Suggestion?

So these are my initial findings...

1) Introduce a new GeditWindowState

If I go the approach of introducing a new GeditWindowState variable for when gedit is quiting it seems like I could swap out what the GEDIT_IS_QUITTING code is doing. This would make sense because GEDIT_IS_QUITTING is essentially the only thing that explicitly tells other methods that gedit is closing down and feels like a valid window "state" to me. However, it seems that the GeditWindowState is very closely tied to what is happening to the tab states. Or really it looks like the tab states drive the window state. This can be seen in the gedit-window.c analyze_tab_state()  method.

It seems that introducing a new GeditWindowState is relatively complex because right now there is a lot of code that keeps checking the known states. Plus it seems like it would be easy for other code to flip the state to something else anyway.

2) New close (quit) event

If I go the route of creating a new close event for when gedit is shutting down would the patch be accepted? This is a bigger change to the API and there is no reason to go down this path if it is too big a change. I still feel like it would be nice to have an event handler for just before gedit shuts down, and just after gedit is fully initialized.

3) Put GEDIT_IS_QUITTING on the header file

Of course this is the easiest thing to do. The problem is this may be something that is in the code that you do not want exposed at the public API level.

What approach do you think I should take?

Is the best place to have discussions like this? I hope to become an active contributor to gedit as I am trying to replace my existing code environment to gedit.


On Mon, Sep 6, 2010 at 3:42 PM, Jeff Johnston <> wrote:
Great! Which approach should I pursue? The event is the cleanest for my needs, but the window state may be less intrusive. The window state is the one I have looked at the least but when you look at the states it does seem like a valid state to have.

Can I write it against the 2.30 release or should it be with the trunk code?


On Mon, Sep 6, 2010 at 2:17 PM, Nacho <nacho resa gmail com> wrote:
I guess if you want something done you should file a bug and attach a patch there that we can review.

On Mon, Sep 6, 2010 at 9:14 PM, Jeff Johnston <> wrote:

Yes. That is ultimately the problem. I never really know that gedit is shutting least not in anyway in which the tabs are still intact. I think there are three ways I can do it. Either we create an event that gedit calls before shutting down, change the window state to GEDIT_WINDOW_STATE_CLOSING (maybe), or expose the GEDIT_IS_QUITTING variable on the window object in the header file. This seems to me the order of how clean the approach is as well.


On Mon, Sep 6, 2010 at 1:24 PM, Nacho <nacho resa gmail com> wrote:

On Mon, Sep 6, 2010 at 8:23 PM, Nacho <nacho resa gmail com> wrote:

why don't you listen to tab-added/removed signals and save each time one of this signals happen?
oh! well you would get the tab-removed when the window is closing. So forget this. 


On Mon, Sep 6, 2010 at 6:22 PM, Jeff Johnston <> wrote:
That is the problem though. The tabs are all closed down before the window delete event is called. Going through the code I can see that a lot of the gedit environment is shut down by the time the my delete event callback is invoked.

gedit-commands-file.c (1766)

if (unsaved_docs == NULL)
        /* There is no document to save -> close all tabs */
        gedit_window_close_all_tabs (window);

        if (is_quitting)
            gtk_widget_destroy (GTK_WIDGET (window));


On Mon, Sep 6, 2010 at 11:18 AM, Sébastien Wilmet <sebastien wilmet gmail com> wrote:
On Mon, 2010-09-06 at 10:51 -0500, Jeff Johnston wrote:
> Looking at this even further I can see that there is no way to tell if
> gedit is closing and have a way to get at the tabs. This seems like a
> reasonable thing that we should be able to find out. If a new event
> seems too much maybe we could just put the GEDIT_IS_QUITTING on the
> header file and make it part of the API? That or have a new
> GeditWindowState that says gedit is closing
> For now I do not see any other way around this so I am going to check
> the GEDIT_IS_QUITTING (but hardcoded in my app) on the window object.
> Keeping track of the tabs is not good enough (and error prone at
> best).
> Whatever the solution I would like to do the work once I know what
> direction to take...
> -Jeff Johnston
> On Sun, Sep 5, 2010 at 9:29 PM, Jeff Johnston
> <> wrote:
>         I am wondering if anyone else would find it useful to have a
>         gedit close event?
>         What I would like to do is save the tabs that are opened when
>         gedit shuts down. The problem is that gedit closes all the
>         tabs and destroys the window before I have a chance to do
>         anything. What would be really useful is to have an event that
>         is invoked when gedit is shut down, but fires before any
>         cleanup is done.
>         I saw that gedit sets a variable on the window object that
>         says the app is quiting. I started to write a 'tab-removed'
>         event that took advantage of that, but it felt very hacky. I
>         could just persist the state of the tabs as they are opened
>         and closed, but that leads to other issues. Ideally I could
>         just take a snapshot of the tabs just before gedit closes
>         down.
>         On a related note this is the flip side of the question I had
>         about loading tabs on startup. The solution there was to use a
>         "realize" event on the window. However, for both startup and
>         shutdown I could see it being very useful to have an event
>         that gets invoked when gedit is all the way up and just before
>         any cleanup is done. That would give custom plugins a last
>         chance to do something with full access to gedit's api while
>         it is fully intact.
>         I would be more than willing to do the work! I have been
>         digging into the gedit source code and I think it is very easy
>         to follow.
>         This is the code I found (2.30.3) that clearly shows that the
>         tabs are all closed and then the window is destroyed.
>         gedit-commands-file.c (1766)
>         g_object_set_data (G_OBJECT (window),
>                        GEDIT_IS_QUITTING,
>                        GBOOLEAN_TO_POINTER (is_quitting));
>         ...
>         if (unsaved_docs == NULL)
>             {
>                 /* There is no document to save -> close all tabs */
>                 gedit_window_close_all_tabs (window);
>                 if (is_quitting)
>                     gtk_widget_destroy (GTK_WIDGET (window));
>                 return;
>             }

Maybe it's possible to use the "delete-event" signal of the window. But
your handler must be called before _gedit_cmd_file_quit () (i.e. before
the tabs are closed).

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