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twice toggle maximizes for fullscreen.

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This commit is contained in:
Miroslav Šedivý 2023-04-19 00:01:28 +02:00
parent 3ef4c5ce0f
commit 47a3f6d6fb
2 changed files with 76 additions and 17 deletions
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91
pkg/xevent/xevent.c
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@ -23,6 +23,9 @@ void XEventLoop(char *name) {
return;
}
// save last size id for fullscreen bug fix
SizeID last_size_id;
Atom WM_WINDOW_ROLE = XInternAtom(display, "WM_WINDOW_ROLE", 1);
Atom XA_CLIPBOARD = XInternAtom(display, "CLIPBOARD", 0);
XFixesSelectSelectionInput(display, root, XA_CLIPBOARD, XFixesSetSelectionOwnerNotifyMask);
@ -75,27 +78,61 @@ void XEventLoop(char *name) {
goXEventUnmapNotify(window);
continue;
}
// ClientMessage
if (event.type == ClientMessage) {
Window window = event.xclient.window;
// check for window manager state change
if (event.xclient.message_type == XInternAtom(display, "_NET_WM_STATE", 0)) {
// see documentation in XWindowManagerStateEvent
Atom action = event.xclient.data.l[0];
Atom first = event.xclient.data.l[1];
Atom second = event.xclient.data.l[2];
// check if user is entering or exiting fullscreen
if (first == XInternAtom(display, "_NET_WM_STATE_FULLSCREEN", 0)) {
// get current size id
Rotation current_rotation;
XRRScreenConfiguration *conf = XRRGetScreenInfo(display, root);
SizeID current_size_id = XRRConfigCurrentConfiguration(conf, &current_rotation);
// window just went fullscreen
if (action == 1) {
// save current size id
last_size_id = current_size_id;
continue;
}
// window just exited fullscreen
if (action == 0) {
// if size id changed, that means user changed resolution while in fullscreen
// there is a bug in some window managers that causes the window to not resize
// if it was previously maximized, so we need to unmaximize it and maximize it again
if (current_size_id != last_size_id) {
// toggle maximized state twice
XWindowManagerStateEvent(display, window, 2,
XInternAtom(display, "_NET_WM_STATE_MAXIMIZED_VERT", 0),
XInternAtom(display, "_NET_WM_STATE_MAXIMIZED_HORZ", 0));
XWindowManagerStateEvent(display, window, 2,
XInternAtom(display, "_NET_WM_STATE_MAXIMIZED_VERT", 0),
XInternAtom(display, "_NET_WM_STATE_MAXIMIZED_HORZ", 0));
}
}
}
}
continue;
}
}
XCloseDisplay(display);
}
void XFileChooserHide(Display *display, Window window) {
Window root = RootWindow(display, 0);
static void XWindowManagerStateEvent(Display *display, Window window, ulong action, ulong first, ulong second) {
Window root = DefaultRootWindow(display);
// The WM_TRANSIENT_FOR property is defined by the [ICCCM] for managed windows.
// This specification extends the use of the property to override-redirect windows.
// If an override-redirect is a pop-up on behalf of another window, then the Client
// SHOULD set WM_TRANSIENT_FOR on the override-redirect to this other window.
//
// As an example, a Client should set WM_TRANSIENT_FOR on dropdown menus to the
// toplevel application window that contains the menubar.
// Remove WM_TRANSIENT_FOR
Atom WM_TRANSIENT_FOR = XInternAtom(display, "WM_TRANSIENT_FOR", 0);
XDeleteProperty(display, window, WM_TRANSIENT_FOR);
// Add _NET_WM_STATE_BELOW
XClientMessageEvent clientMessageEvent;
memset(&clientMessageEvent, 0, sizeof(clientMessageEvent));
@ -115,9 +152,29 @@ void XFileChooserHide(Display *display, Window window) {
clientMessageEvent.window = window;
clientMessageEvent.message_type = XInternAtom(display, "_NET_WM_STATE", 0);
clientMessageEvent.format = 32;
clientMessageEvent.data.l[0] = 1;
clientMessageEvent.data.l[1] = XInternAtom(display, "_NET_WM_STATE_BELOW", 0);
clientMessageEvent.data.l[0] = action;
clientMessageEvent.data.l[1] = first;
clientMessageEvent.data.l[2] = second;
clientMessageEvent.data.l[3] = 1;
XSendEvent(display, root, 0, SubstructureRedirectMask | SubstructureNotifyMask, (XEvent *)&clientMessageEvent);
XFlush(display);
}
void XFileChooserHide(Display *display, Window window) {
// The WM_TRANSIENT_FOR property is defined by the [ICCCM] for managed windows.
// This specification extends the use of the property to override-redirect windows.
// If an override-redirect is a pop-up on behalf of another window, then the Client
// SHOULD set WM_TRANSIENT_FOR on the override-redirect to this other window.
//
// As an example, a Client should set WM_TRANSIENT_FOR on dropdown menus to the
// toplevel application window that contains the menubar.
// Remove WM_TRANSIENT_FOR
Atom WM_TRANSIENT_FOR = XInternAtom(display, "WM_TRANSIENT_FOR", 0);
XDeleteProperty(display, window, WM_TRANSIENT_FOR);
// Add _NET_WM_STATE_BELOW
XWindowManagerStateEvent(display, window, 1, // set property
XInternAtom(display, "_NET_WM_STATE_BELOW", 0), 0);
}

2
pkg/xevent/xevent.h
View File

@ -3,6 +3,7 @@
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/extensions/Xrandr.h>
#include <X11/extensions/Xfixes.h>
#include <stdlib.h>
#include <string.h>
@ -17,4 +18,5 @@ extern int goXEventActive();
static int XEventError(Display *display, XErrorEvent *event);
void XEventLoop(char *display);
static void XWindowManagerStateEvent(Display *display, Window window, ulong action, ulong first, ulong second);
void XFileChooserHide(Display *display, Window window);