bug#62291: 30.0.50; PGTK copy + paste to other app problem

[Po Lu]

Andrew Tropin <andrew@trop.in> writes:

> On 2023-03-22 08:39, Po Lu wrote:
>
>> Andrew Tropin <andrew@trop.in> writes:
>>
>>> (gdb) frame 12
>>> #12 0x00007ffff798ac04 in gtk_widget_event_internal 
>>> (widget=widget@entry=0xfee500, event=event@entry=0xfdb4a0) at 
>>> gtkwidget.c:7808
>>> 7808    in gtkwidget.c
>>> (gdb) p *event
>>> $3 = {type = GDK_FOCUS_CHANGE, any = {type = GDK_FOCUS_CHANGE, window = 
>>> 0xefc450, send_event = 0 '\000'}, expose = {type = GDK_FOCUS_CHANGE, window 
>>> = 0xefc450, 
>>>     send_event = 0 '\000', area = {x = 0, y = 0, width = 0, height = 0}, 
>>> region = 0x0, count = 0}, visibility = {type = GDK_FOCUS_CHANGE, window = 
>>> 0xefc450, 
>>>     send_event = 0 '\000', state = GDK_VISIBILITY_UNOBSCURED}, motion = 
>>> {type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000', time = 
>>> 0, x = 0, y = 0, axes = 0x0, 
>>>     state = 0, is_hint = 0, device = 0x0, x_root = 0, y_root = 0}, button = 
>>> {type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000', time = 
>>> 0, x = 0, y = 0, 
>>>     axes = 0x0, state = 0, button = 0, device = 0x0, x_root = 0, y_root = 
>>> 0}, touch = {type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 
>>> '\000', time = 0, x = 0, 
>>>     y = 0, axes = 0x0, state = 0, sequence = 0x0, emulating_pointer = 0, 
>>> device = 0x0, x_root = 0, y_root = 0}, scroll = {type = GDK_FOCUS_CHANGE, 
>>> window = 0xefc450, 
>>>     send_event = 0 '\000', time = 0, x = 0, y = 0, state = 0, direction = 
>>> GDK_SCROLL_UP, device = 0x0, x_root = 0, y_root = 0, delta_x = 0, delta_y = 
>>> 0, is_stop = 0}, key = {
>>>     type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000', time 
>>> = 0, state = 0, keyval = 0, length = 0, string = 0x0, hardware_keycode = 0, 
>>> group = 0 '\000', 
>>>     is_modifier = 0}, crossing = {type = GDK_FOCUS_CHANGE, window = 
>>> 0xefc450, send_event = 0 '\000', subwindow = 0x0, time = 0, x = 0, y = 0, 
>>> x_root = 0, y_root = 0, 
>>>     mode = GDK_CROSSING_NORMAL, detail = GDK_NOTIFY_ANCESTOR, focus = 0, 
>>> state = 0}, focus_change = {type = GDK_FOCUS_CHANGE, window = 0xefc450, 
>>> send_event = 0 '\000', in = 1}, 
>>>   configure = {type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 
>>> '\000', x = 0, y = 0, width = 0, height = 0}, property = {type = 
>>> GDK_FOCUS_CHANGE, window = 0xefc450, 
>>>     send_event = 0 '\000', atom = 0x0, time = 0, state = 0}, selection = 
>>> {type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000', 
>>> selection = 0x0, target = 0x0, 
>>>     property = 0x0, time = 0, requestor = 0x0}, owner_change = {type = 
>>> GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000', owner = 0x0, 
>>>     reason = GDK_OWNER_CHANGE_NEW_OWNER, selection = 0x0, time = 0, 
>>> selection_time = 0}, proximity = {type = GDK_FOCUS_CHANGE, window = 
>>> 0xefc450, send_event = 0 '\000', 
>>>     time = 0, device = 0x0}, dnd = {type = GDK_FOCUS_CHANGE, window = 
>>> 0xefc450, send_event = 0 '\000', context = 0x0, time = 0, x_root = 0, 
>>> y_root = 0}, window_state = {
>>>     type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000', 
>>> changed_mask = 0, new_window_state = 0}, setting = {type = 
>>> GDK_FOCUS_CHANGE, window = 0xefc450, 
>>>     send_event = 0 '\000', action = GDK_SETTING_ACTION_NEW, name = 0x0}, 
>>> grab_broken = {type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 
>>> '\000', keyboard = 0, 
>>>     implicit = 0, grab_window = 0x0}, touchpad_swipe = {type = 
>>> GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000', phase = 0 
>>> '\000', n_fingers = 1 '\001', time = 0, 
>>>     x = 0, y = 0, dx = 0, dy = 0, x_root = 0, y_root = 0, state = 0}, 
>>> touchpad_pinch = {type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 
>>> 0 '\000', phase = 0 '\000', 
>>>     n_fingers = 1 '\001', time = 0, x = 0, y = 0, dx = 0, dy = 0, 
>>> angle_delta = 0, scale = 0, x_root = 0, y_root = 0, state = 0}, pad_button 
>>> = {type = GDK_FOCUS_CHANGE, 
>>>     window = 0xefc450, send_event = 0 '\000', time = 0, group = 0, button = 
>>> 0, mode = 0}, pad_axis = {type = GDK_FOCUS_CHANGE, window = 0xefc450, 
>>> send_event = 0 '\000', 
>>>     time = 0, group = 0, index = 0, mode = 0, value = 0}, pad_group_mode = 
>>> {type = GDK_FOCUS_CHANGE, window = 0xefc450, send_event = 0 '\000', time = 
>>> 0, group = 0, mode = 0}}
>>>
>>> Thank you for your patience :)
>>
>> OK, thanks.  This is quite odd.  If you type:
>>
>>   (gdb) p G_OBJECT_TYPE_NAME (widget)
>>
>> what do you see?
>
> (gdb) p G_OBJECT_TYPE_NAME (widget)
> No symbol "G_OBJECT_TYPE_NAME" in current context.

Hmm.  Would you please try this instead?

  (gdb) p g_type_name (((GTypeInstance *) widget)->g_class->g_type)