I could not test these changes because I could not get my telnet client
(on Linux) to connect to the telnet server running in Serenity.
I tried the follwing:
# Serenity
su
TelnetServer
# Linux
telnet localhost 8823
The server then immediatelly closes the connection:
Connection closed by foreign host.
In the debug logs the following message appears:
[NetworkTask(5:5)]: handle_tcp: unexpected flags in FinWait2 state
[NetworkTask(5:5)]: handle_tcp: unexpected flags in Closed state
[NetworkTask(5:5)]: handle_tcp: unexpected flags in Closed state
This seems to be an unrelated bug in the TCP implementation.
There is a window between windows disappearing (e.g. closing or crashes)
and the Taskbar process being notified. So it is entirely possible that
it may call SetWindowTaskbarRect() for a window and/or client id that no
longer exists. As the Taskbar process does not own these windows, this
should not be treated as a misbehaving application request. Instead, just
silently ignore the request. The Taskbar will be notified shortly after
that the window no longer exist and remove it from its list.
Fixes#3494
Instead of everyone overriding save_to() and set_property() and doing
a pretty asymmetric job of implementing the various properties, let's
add a bit of structure here.
Object properties are now represented by a Core::Property. Properties
are registered with a getter and setter (optional) in constructors.
I've added some convenience macros for creating and registering
properties, but this does still feel a bit bulky. We'll have to
iterate on this and see where it goes.
This patch introduces IPC::Connection which becomes the new base class
of ClientConnection and ServerConnection. Most of the functionality
has been hoisted up to the base class since almost all of it is useful
on both sides.
This gives us the ability to send synchronous messages in both
directions, which is needed for the WebContent server process.
Unlike other servers, WebContent does not mind blocking on a response
from its client.
When invalidating the frame we need to properly flag that so that
we trigger rendering the frame, even if "all" was flagged as being
invalidated. Otherwise it will only get rendered if anything else
happens to trigger it (such as focus change).
Fixes#3427
Do not fill the backing store mismatch area with the solid window
color if the window is transparent. This caused some minor flicker
when such a window is e.g. snapped to the left/right or maximized.
A malicious caller of set_params could have caused the ifr_name field to
lack NUL-termination. I don't think this was an actual problem, though, as
the Kernel always forces NUL-termination by overwriting ifr_name's last byte
with NUL.
However, it feels better to do it properly.
No behaviour change (probably).
A malicious caller can create a SocketAddress for a local unix socket with an
over-long name that does not fit into struct sock_addr_un.
- Socket::connet: This caused the 'sun_path' field to
overflow, probably overwriting the return pointer of the call frame, and thus
crashing the process (in the best case).
- SocketAddress::to_sockaddr_un: This triggered a RELEASE_ASSERT, and thus
crashing the process.
Both have been fixed to return a nice error code instead of crashing.
When a resize_aspect_ratio is specified, and window will only be resized
to a multiple of that ratio. When resize_aspect_ratio is set, windows
cannot be tiled.
We need to clip painting to the actual size to prevent corrupting
the area outside of the applet as the backing store is not
guaranteed to be perfectly in sync.
Fixes#3107
We need to update all button rectangles when the layout changed.
We also need to clear the taskbar button rectangle when we
remove a modal window button, so that WindowServer uses the
parent's taskbar button rectangle for the minimize animation.
If a modal window is being minimized, it may not have its own
taskbar rectangle. In that case, try finding a parent in the
modal window stack that does have one, and use that for the
animation.
Rather than blitting and rendering each window every time, only
render what actually changed. And while doing so, only render
the portions that are visible on the screen. This avoids flickering
because flipping framebuffers isn't always perfectly in sync with
the code, so it's possible that the flip happens slightly delayed
and we can briefly see the next iteration having partially completed.
Also, avoid touching the mouse cursor unless it is in an area that
needs updating. This reduces flickering unless it is over an area
that is updated often. And because we no longer render the entire
screen, we'll save the contents below the cursor so that we can
hide it before touching that area.
Fixes#2981
Various applications were using the same slightly verbose code to center
themselves on the screen/desktop:
Gfx::IntRect window_rect { 0, 0, width, height };
window_rect.center_within(GUI::Desktop::the().rect());
window->set_rect(window_rect);
Which now becomes:
window->resize(width, height);
window->center_on_screen();
This finally makes tooltips on menu applets the same as everywhere else!
Here's what went wrong:
WindowManager::process_mouse_event() receives a Window*&, determines the
hovered window and sets it accordingly. However there's a branch that
tests for menubar_rect().contains(event.position()) and returns early -
which resulted in hovered_window never being set to any MenuApplet
window, even hovered ones.
The hovered_window result is being used in WindowManager::event() and
passed to WindowManager::set_hovered_window(), which is responsible for
creating WindowLeft and WindowEntered events when the hovered window
changes, as a result of the mentioned chain of events this also never
happens for MenuApplet windows.
The WindowLeft event would the cause Window::handle_left_event() in
LibGUI to be called, which unsets the window's hovered widget, which
is necessary for the widget to receive a subsequent Enter event -
again, all of this never happened.
Now it's working as expected though, so we can start using tooltips on
menu applets :^)
In the case of an ongoing window drag/move/resize action
WindowManager::process_mouse_event() would return early, even before
delivering mouse events to windows with global cursor tracking enabled.
They would only continue to receive new mouse events once those actions
were completed.
Fixes#3116.
When maximizing a window that is blocked by a modal window, only
maximize the top window in the stack. However, if the stack is
minimized, restore all of them in addition.
Fixes#3074
This patch introduces the ClassicWindowTheme, which is our default
theme implemented as a Gfx::WindowTheme subclass.
In this initial cut, we move normal window frame painting and title
bar metrics helpers out of WindowServer and into LibGfx.
This will eventually allow us much greater flexibility with theming
windows, and also makes it easier to build applications that want to
render a window with a specific style for some reason. :^)
