mfwm

A tiling fork of dylanaraps sowm.
git clone git://depsterr.com/git/mfwm
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commit cb68a94196a951485e99f9f4bfc86a8b643c2dfd
parent c71c704a14fdcd047aaa118814da47c673002da9
Author: Dylan Araps <dylan.araps@gmail.com>
Date:   Tue, 15 Oct 2019 13:21:58 +0300

sowm: start adding comments.

Diffstat:
Msowm.c | 47++++++++++++++++++++++++++++++++++++++++++-----
1 file changed, 42 insertions(+), 5 deletions(-)

diff --git a/sowm.c b/sowm.c @@ -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|