twin/sowm
1
0
Fork 0
mirror of https://github.com/dylanaraps/sowm.git synced 2025-05-19 09:30:24 -07:00
Code Issues Packages Projects Releases Wiki Activity

sowm: start adding comments.

Browse Source
This commit is contained in:
Dylan Araps 2019-10-15 13:21:58 +03:00
parent c71c704a14
commit cb68a94196
No known key found for this signature in database
GPG Key ID: 46D62DD9F1DE636E
1 changed files with 42 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
sowm.c
View File

@ -78,18 +78,58 @@ static void (*events[LASTEvent])(XEvent *e) = {
[MotionNotify] = notify_motion
};
/*
'sowm' doesn't keep track of the currently focused window
and instead grabs window under the cursor when needed.
This is a super lazy way of handling current focus, however
it aligns perfectly with mouse-follows-focus.
Logic below will select a real window if this function
returns the 'root' window.
This function returns the current window while at the same
time defining a global variable to contain its value. This
allows for stupidily simple usage.
Example: if (win_current() != root) XKillClient(d, cur);
The value can be used as function output and then
the same value can be used as a variable directly afterwards.
*/
Window win_current() {
XGetInputFocus(d, &cur, &j);
return cur;
}
/*
When a window is destroyed it is first removed from the
current desktop's window list and finally focus is shifted.
Focus goes to the window under the cursor if it is *not*
the root window. If it is the root window, focus goes to
the first window in the desktop.
*/
void notify_destroy(XEvent *e) {
win_del(e->xdestroywindow.window);
win_current();
if (list) FOC(cur == root ? list->w : cur);
if (list) FOC(win_current() == root ? list->w : cur);
}
/*
When the mouse enters or leaves a window this function
handles which window shall be focused next.
The while loop firstly compresses all 'EnterNotify'
events down to only the latest which is an optimization
when focus changes very quickly (e.g a desktop focus).
There's no use in computing each and every event as we
only really care about the newest one.
Focus is only then changed if the mouse has entered a
window which is *not* the root window.
*/
void notify_enter(XEvent *e) {
while(XCheckTypedEvent(d, EnterNotify, e));
@ -342,9 +382,6 @@ int main(void) {
key_grab();
for (int i=0; i < sizeof(ws_list)/sizeof(*ws_list); ++i)
ws_list[i].list = 0;
ws_go((Arg){.i = 1});
XSelectInput(d, root, SubstructureNotifyMask|