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Code Issues Activity Actions

Make it possible for userspace to alter window title/geometry.

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I'm not in love with this syscall API but it allows me to make progress.
This commit is contained in:
Andreas Kling 2019-01-20 06:02:09 +01:00
parent 8eae89a405
commit dbe83f3a83
11 changed files with 78 additions and 17 deletions
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2
Kernel/GUITypes.h
View file

@ -26,7 +26,7 @@ struct GUI_Rect {
GUI_Size size;
};
struct GUI_CreateWindowParameters {
struct GUI_WindowParameters {
GUI_Rect rect;
Color background_color;
unsigned flags { 0 };

4
Kernel/Process.h
View file

@ -192,10 +192,12 @@ public:
Unix::clock_t sys$times(Unix::tms*);
int sys$utime(const char* pathname, const struct Unix::utimbuf*);
int gui$create_window(const GUI_CreateWindowParameters*);
int gui$create_window(const GUI_WindowParameters*);
int gui$destroy_window(int window_id);
int gui$get_window_backing_store(int window_id, GUI_WindowBackingStoreInfo*);
int gui$invalidate_window(int window_id, const GUI_Rect*);
int gui$get_window_parameters(int window_id, GUI_WindowParameters*);
int gui$set_window_parameters(int window_id, const GUI_WindowParameters*);
DisplayInfo get_display_info();

32
Kernel/ProcessGUI.cpp
View file

@ -35,7 +35,7 @@ static void wait_for_gui_server()
sleep(10);
}
int Process::gui$create_window(const GUI_CreateWindowParameters* user_params)
int Process::gui$create_window(const GUI_WindowParameters* user_params)
{
wait_for_gui_server();
@ -122,3 +122,33 @@ int Process::gui$invalidate_window(int window_id, const GUI_Rect* rect)
WSEventLoop::the().server_process().request_wakeup();
return 0;
}
int Process::gui$get_window_parameters(int window_id, GUI_WindowParameters* params)
{
if (window_id < 0)
return -EINVAL;
if (!validate_write_typed(params))
return -EFAULT;
auto it = m_windows.find(window_id);
if (it == m_windows.end())
return -EBADWINDOW;
auto& window = *(*it).value;
params->rect = window.rect();
strcpy(params->title, window.title().characters());
return 0;
}
int Process::gui$set_window_parameters(int window_id, const GUI_WindowParameters* params)
{
if (window_id < 0)
return -EINVAL;
if (!validate_read_typed(params))
return -EFAULT;
auto it = m_windows.find(window_id);
if (it == m_windows.end())
return -EBADWINDOW;
auto& window = *(*it).value;
window.set_rect(params->rect);
window.set_title(params->title);
return 0;
}

6
Kernel/Syscall.cpp
View file

@ -192,13 +192,17 @@ static dword handle(RegisterDump& regs, dword function, dword arg1, dword arg2,
case Syscall::SC_sync:
return sync();
case Syscall::SC_gui_create_window:
return current->gui$create_window((const GUI_CreateWindowParameters*)arg1);
return current->gui$create_window((const GUI_WindowParameters*)arg1);
case Syscall::SC_gui_destroy_window:
return current->gui$destroy_window((int)arg1);
case Syscall::SC_gui_get_window_backing_store:
return current->gui$get_window_backing_store((int)arg1, (GUI_WindowBackingStoreInfo*)arg2);
case Syscall::SC_gui_invalidate_window:
return current->gui$invalidate_window((int)arg1, (const GUI_Rect*)arg2);
case Syscall::SC_gui_set_window_parameters:
return current->gui$set_window_parameters((int)arg1, (const GUI_WindowParameters*)arg2);
case Syscall::SC_gui_get_window_parameters:
return current->gui$get_window_parameters((int)arg1, (GUI_WindowParameters*)arg2);
default:
kprintf("<%u> int0x80: Unknown function %u requested {%x, %x, %x}\n", current->pid(), function, arg1, arg2, arg3);
break;

2
Kernel/Syscall.h
View file

@ -72,6 +72,8 @@
__ENUMERATE_SYSCALL(gui_get_window_backing_store) \
__ENUMERATE_SYSCALL(gui_invalidate_window) \
__ENUMERATE_SYSCALL(select) \
__ENUMERATE_SYSCALL(gui_get_window_parameters) \
__ENUMERATE_SYSCALL(gui_set_window_parameters) \
struct fd_set;