If a window which has an active modal window is focused, the modal
window starts blinking. In this case, the window (and modal) should
still be focused. For this, the order of the checks in
process_mouse_event_for_window has to be changed.
This fixes#8183.
This enables rendering of mixed-scale screen layouts with e.g. high
resolution cursors and window button icons on high-dpi screens while
using lower resolution bitmaps on regular screens.
This sets the stage so that DisplaySettings can configure the screen
layout and set various screen resolutions in one go. It also allows
for an easy "atomic" revert of the previous settings.
This allows WindowServer to use multiple framebuffer devices and
compose the desktop with any arbitrary layout. Currently, it is assumed
that it is configured contiguous and non-overlapping, but this should
eventually be enforced.
To make rendering efficient, each window now also tracks on which
screens it needs to be rendered. This way we don't have to iterate all
the windows for each screen but instead use the same rendering loop and
then only render to the screen (or screens) that the window actually
uses.
Some paths of the mouse event processing code will upgrade the event
from a regular MouseDown to a MouseDoubleClick. That's why we were
passing `MouseEvent&` everywhere.
For the paths that don't need to do this, passing `MouseEvent const&`
reduces the cognitive burden a bit, so let's do that.
Instead of plumbing a Window* through the entire mouse event processing
logic, just do a hit test and say that the window under the cursor is
the hovered window.
It's funny how much easier this is now that we have a way to hit test
the entire window stack with one call.
Move the logic for processing a mouse event that hits a specific window
into its own function.
If the window is blocked by a modal child, we now get that out of the
way first, so we don't have to think about it later.
Even if a window is in fullscreen mode, we still want hit testing to
walk the window stack. Otherwise child windows of the fullscreen
window will not receive mouse events.
The button widgets internally rendered by WindowServer are only used
in titlebars, and require a bit of mouse event handling. Instead of
mixing it with the window-oriented mouse event handling, get the
button event stuff out of the way first.
If a window is currently actively tracking input events (because
sent it a MouseDown and haven't sent it a MouseUp yet), we now simply
send mouse events to that window right away before doing any other
event processing.
This makes it much easier to reason about mouse events.
Instead of just answering hit/no-hit when hit testing windows, we now
return a HitTestResult object which tells you which window was hit,
where it was hit, and whether you hit the frame or the content.
This feature had been there since early on and was not actually useful
for anything. I just added it because it was fun. In retrospect, it's
not a very good feature and I only ever activated it by accident.
This patch moves the window stack out of WindowManager and into its own
WindowStack class.
A WindowStack is an ordered list of windows with an optional highlight
window. The highlight window mechanism is used during Super+Tab window
switching to temporarily bring a window to the front.
This is mostly mechanical, just moving the code to its own class.
Use the configured desktop background color, if defined, otherwise
default to the current theme's background color. If a user chooses
a background color via "desktop settings", then this new color
will always be used.
Switching themes will delete the user-defined background color, so
the background color resets to the theme's defined color.
This patch adds a set_system_fonts() IPC API that takes the two main
font queries as parameters. We'll probably expand this with additional
queries when we figure out what they should be.
Note that changing the system fonts on a live system mostly takes
effect in newly launched programs. This is because GUI::Widget will
currently cache a pointer to the Gfx::FontDatabase::default_font()
when first constructed. This is something we'll have to fix somehow.
Also note that the settings are not yet persisted.
Problem:
- `static` variables consume memory and sometimes are less
optimizable.
- `static const` variables can be `constexpr`, usually.
- `static` function-local variables require an initialization check
every time the function is run.
Solution:
- If a global `static` variable is only used in a single function then
move it into the function and make it non-`static` and `constexpr`.
- Make all global `static` variables `constexpr` instead of `const`.
- Change function-local `static const[expr]` variables to be just
`constexpr`.
We were not substituting the window modified marker ("[*]") in the
title strings we were sending to WM clients. This caused the Taskbar
to show pre-substitution window titles for the Text Editor application.
This patch moves the window title resolution to Window::compute_title()
which is then used throughout.
Also update the window switcher for good measure. The window switcher
doesn't visualize this information at the moment, but we generally do
this when any window state changes.
When a new Window instance is added to the WindowManager, it does not
yet have an updated value for `m_frame->rect()` and we're not checking
if there is a new candidate for the hovered window, which we need to do
since the mouse cursor might hover above the newly opened window.
This fixes both issues: as soon as a Window frame's rect is changed,
ask the WindowManager to reevaluate its hovered window. This takes care
of newly opened windows _and_ windows that are programmatically changed
in size.
This works because when a Window becomes hovered, the WindowManager
sends out an enter event. This event in turn triggers the Window to
evaluate the cursor type under the mouse position and to update it when
necessary.
Fixes#4809.
SPDX License Identifiers are a more compact / standardized
way of representing file license information.
See: https://spdx.dev/resources/use/#identifiers
This was done with the `ambr` search and replace tool.
ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
This commit adds an event called WM_SuperKeyPressed which is sent to all
windows via WindowManagerServerConnection.
The event is fired from WindowManager when the super key is pressed,
which is the windows key on most keyboards :)
