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Hot corners feature core

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Add mouse pointer position detection to trigger the corner actions.

Screen corners can be assigned an external command to be
executed when the mouse pointer is entering those areas.

In WPrefs, "Hot Corner Shortcut Preferences" can be used
for configuration or by manually adding a "HotCorners" key
and value to "YES" in the ~/GNUstep/Defaults/WindowMaker file.

Actions are specified by the "HotCornerActions" and are defined
as a four entries list ("top left action", "top right action",
"bottom left action", "bottom right action").
A screen corner area is a cube shape defined by the "HotCornerEdge"
which is a number of pixels from 2 (by default) to 10.

To lower the risk of triggering that feature accidentally a
"HotCornerDelay" key can be used which is the time before the action
is triggered while the pointer is in one of the screen corner.
Default value is 250 ms.

Hot Corners feature is disabled by default.
This commit is contained in:
David Maciejak
2023-03-26 14:35:13 +08:00
committed by Carlos R. Mafra
parent 157d1ba85f
commit 802cbc0d75
4 changed files with 143 additions and 12 deletions
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101
src/event.c
View File

@@ -1928,27 +1928,104 @@ static void handleKeyPress(XEvent * event)
}
}
static void handleMotionNotify(XEvent * event)
{
WScreen *scr = wScreenForRootWindow(event->xmotion.root);
#define CORNER_NONE 0
#define CORNER_TOPLEFT 1
#define CORNER_TOPRIGHT 2
#define CORNER_BOTTOMLEFT 3
#define CORNER_BOTTOMRIGHT 4
if (wPreferences.scrollable_menus) {
static int get_corner(WMRect rect, WMPoint p)
{
if (p.x <= (rect.pos.x + wPreferences.hot_corner_edge) && p.y <= (rect.pos.y + wPreferences.hot_corner_edge))
return CORNER_TOPLEFT;
if (p.x >= (rect.pos.x + rect.size.width - wPreferences.hot_corner_edge) && p.y <= (rect.pos.y + wPreferences.hot_corner_edge))
return CORNER_TOPRIGHT;
if (p.x <= (rect.pos.x + wPreferences.hot_corner_edge) && p.y >= (rect.pos.y + rect.size.height - wPreferences.hot_corner_edge))
return CORNER_BOTTOMLEFT;
if (p.x >= (rect.pos.x + rect.size.width - wPreferences.hot_corner_edge) && p.y >= (rect.pos.y + rect.size.height - wPreferences.hot_corner_edge))
return CORNER_BOTTOMRIGHT;
return CORNER_NONE;
}
static void hotCornerDelay(void *data)
{
WScreen *scr = (WScreen *) data;
if (scr->flags.in_hot_corner && wPreferences.hot_corner_actions[scr->flags.in_hot_corner - 1])
ExecuteShellCommand(scr, wPreferences.hot_corner_actions[scr->flags.in_hot_corner - 1]);
WMDeleteTimerHandler(scr->hot_corner_timer);
scr->hot_corner_timer = NULL;
}
static void handleMotionNotify(XEvent *event)
{
if (wPreferences.scrollable_menus || wPreferences.hot_corners) {
WScreen *scr = wScreenForRootWindow(event->xmotion.root);
WMPoint p = wmkpoint(event->xmotion.x_root, event->xmotion.y_root);
WMRect rect = wGetRectForHead(scr, wGetHeadForPoint(scr, p));
if (scr->flags.jump_back_pending ||
p.x <= (rect.pos.x + 1) ||
p.x >= (rect.pos.x + rect.size.width - 2) ||
p.y <= (rect.pos.y + 1) || p.y >= (rect.pos.y + rect.size.height - 2)) {
WMenu *menu;
if (wPreferences.hot_corners) {
if (!scr->flags.in_hot_corner) {
scr->flags.in_hot_corner = get_corner(rect, p);
if (scr->flags.in_hot_corner && !scr->hot_corner_timer)
scr->hot_corner_timer = WMAddTimerHandler(wPreferences.hot_corner_delay, hotCornerDelay, scr);
} else {
int out_hot_corner = 0;
menu = wMenuUnderPointer(scr);
if (menu != NULL)
wMenuScroll(menu);
switch (scr->flags.in_hot_corner) {
case CORNER_TOPLEFT:
if ((p.x > (rect.pos.x + wPreferences.hot_corner_edge)) ||
(p.y > (rect.pos.y + wPreferences.hot_corner_edge)))
out_hot_corner = 1;
break;
case CORNER_TOPRIGHT:
if ((p.x < (rect.pos.x + rect.size.width - wPreferences.hot_corner_edge)) ||
(p.y > (rect.pos.y + wPreferences.hot_corner_edge)))
out_hot_corner = 1;
break;
case CORNER_BOTTOMLEFT:
if ((p.x > (rect.pos.x + wPreferences.hot_corner_edge)) ||
(p.y < (rect.pos.y + rect.size.height - wPreferences.hot_corner_edge)))
out_hot_corner = 1;
break;
case CORNER_BOTTOMRIGHT:
if ((p.x < (rect.pos.x + rect.size.width - wPreferences.hot_corner_edge)) ||
(p.y < (rect.pos.y + rect.size.height - wPreferences.hot_corner_edge)))
out_hot_corner = 1;
break;
}
if (out_hot_corner) {
scr->flags.in_hot_corner = CORNER_NONE;
if (scr->hot_corner_timer) {
WMDeleteTimerHandler(scr->hot_corner_timer);
scr->hot_corner_timer = NULL;
}
}
}
}
if (wPreferences.scrollable_menus) {
if (scr->flags.jump_back_pending ||
p.x <= (rect.pos.x + 1) ||
p.x >= (rect.pos.x + rect.size.width - 2) ||
p.y <= (rect.pos.y + 1) || p.y >= (rect.pos.y + rect.size.height - 2)) {
WMenu *menu;
menu = wMenuUnderPointer(scr);
if (menu != NULL)
wMenuScroll(menu);
}
}
}
}
#undef CORNER_NONE
#undef CORNER_TOPLEFT
#undef CORNER_TOPRIGHT
#undef CORNER_BOTTOMLEFT
#undef CORNER_BOTTOMRIGHT
static void handleVisibilityNotify(XEvent * event)
{
WWindow *wwin;