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Handle window map_state and VisibilityNotify events, closes #68

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This commit is contained in:
Jarcode
2018-10-08 11:18:45 -07:00
parent acdbb8f3b5
commit 83a94e3eb4
7 changed files with 54 additions and 21 deletions
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41
glx_wcb.c
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@@ -175,7 +175,7 @@ struct glxwin {
Window w;
GLXContext context;
double time;
bool should_close, clickthrough;
bool should_close, should_render, clickthrough;
char override_state;
};
@@ -274,10 +274,13 @@ static void* create_and_bind(const char* name, const char* class,
int version_major, int version_minor,
bool clickthrough) {
struct glxwin* w = malloc(sizeof(struct glxwin));
w->override_state = '\0';
w->time = 0.0D;
w->should_close = false;
w->clickthrough = false;
*w = (struct glxwin) {
.override_state = '\0',
.time = 0.0D,
.should_close = false,
.should_render = true,
.clickthrough = false
};
XVisualInfo* vi;
XSetWindowAttributes attr = {};
@@ -355,10 +358,11 @@ static void* create_and_bind(const char* name, const char* class,
vi = glXGetVisualFromFBConfig(display, config);
attr.colormap = XCreateColormap(display, DefaultRootWindow(display), vi->visual, AllocNone);
attr.event_mask = ExposureMask | KeyPressMask | StructureNotifyMask | PropertyChangeMask;
attr.event_mask = ExposureMask | KeyPressMask | StructureNotifyMask;
attr.event_mask |= PropertyChangeMask | VisibilityChangeMask;
attr.background_pixmap = None;
attr.border_pixel = 0;
unsigned long vmask = CWColormap | CWEventMask | CWBackPixmap | CWBorderPixel;
if (type[0] == '!') {
vmask |= CWOverrideRedirect;
@@ -483,8 +487,14 @@ static void set_visible(struct glxwin* w, bool visible) {
else XUnmapWindow(display, w->w);
}
static bool should_close(struct glxwin* w) {
return w->should_close;
static bool should_close (struct glxwin* w) { return w->should_close; }
static bool should_render(struct glxwin* w) {
/* For nearly all window managers, windows are 'minimized' by unmapping parent windows.
VisibilityNotify events are not sent in these instances, so we have to read window
attributes to see if our window isn't viewable. */
XWindowAttributes attrs;
XGetWindowAttributes(display, w->w, &attrs);
return w->should_render && attrs.map_state == IsViewable;
}
static void swap_buffers(struct glxwin* w) {
@@ -500,6 +510,19 @@ static void swap_buffers(struct glxwin* w) {
w->should_close = true;
}
break;
case VisibilityNotify:
switch (ev.xvisibility.state) {
case VisibilityFullyObscured:
w->should_render = false;
break;
case VisibilityUnobscured:
case VisibilityPartiallyObscured:
w->should_render = true;
break;
default:
fprintf(stderr, "Invalid VisibilityNotify event state (%d)\n", ev.xvisibility.state);
break;
}
default: break;
}
}