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

[Andrew Tropin]

On 2023-03-22 14:11, Po Lu wrote:

> 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)

(gdb)  p g_type_name (((GTypeInstance *) widget)->g_class->g_type)
'g_type_name' has unknown return type; cast the call to its declared return type

-- 
Best regards,
Andrew Tropin

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