winamp/Src/Wasabi/api/wnd/popexitchecker.cpp

80 lines
2.1 KiB
C++

#include <precomp.h>
#include "popexitchecker.h"
#include <api/wnd/popexitcb.h>
#include <api/wnd/api_window.h>
#include <api/syscb/callbacks/syscbi.h>
#include <api/wnd/wndtrack.h>
//PopupExitChecker *popupExitChecker;
PopupExitChecker::PopupExitChecker() {
}
PopupExitChecker::~PopupExitChecker() {
watchers.deleteAll();
}
void PopupExitChecker::registerCallback(PopupExitCallback *cb, ifc_window *watched) {
ifc_dependent *a = cb->popupexit_getDependencyPtr();
ifc_dependent *b = watched->getDependencyPtr();
watchers.addItem(new PopupExitCallbackEntry(cb, watched, a, b));
viewer_addViewItem(a);
viewer_addViewItem(b);
}
int PopupExitChecker::check(ifc_window *w) {
int n=0;
foreach(watchers)
PopupExitCallbackEntry *e = watchers.getfor();
if (w != e->watched && !isGrandChildren(e->watched, w)) {
e->cb->popupexitcb_onExitPopup();
n++;
}
endfor;
return n > 0;
}
void PopupExitChecker::signal() {
foreach(watchers)
watchers.getfor()->cb->popupexitcb_onExitPopup();
endfor;
}
int PopupExitChecker::isGrandChildren(ifc_window *parent, ifc_window *child) {
int i;
for (i=0;i<parent->getNumRootWndChildren();i++) {
if (parent->enumRootWndChildren(i) == child) return 1;
}
for (i=0;i<parent->getNumRootWndChildren();i++) {
ifc_window *w = parent->enumRootWndChildren(i);
int r = 0;
if (w->getNumRootWndChildren() > 0) r = isGrandChildren(w, child);
if (r) return 1;
}
return 0;
}
int PopupExitChecker::viewer_onItemDeleted(ifc_dependent *item) {
for (int i=0;i<watchers.getNumItems();i++) {
PopupExitCallbackEntry *e = watchers.enumItem(i);
if (e->cbd == item || e->wd == item) {
watchers.removeByPos(i); i--;
delete e;
// no break, wnd can be watched by many people
}
}
return 0;
}
void PopupExitChecker::deregisterCallback(PopupExitCallback *cb) {
for (int i=0;i<watchers.getNumItems();i++) {
PopupExitCallbackEntry *e = watchers.enumItem(i);
if (e->cb == cb) {
watchers.removeByPos(i); i--;
delete e;
// no break, watcher can watch many windows, but wait, there cannot be 2 popups at once on a screen! who says so ?
}
}
}