1 files changed, 79 insertions, 0 deletions
diff --git a/Src/Wasabi/api/wnd/popexitchecker.cpp b/Src/Wasabi/api/wnd/popexitchecker.cpp
new file mode 100644
index 00000000..31ec91a6
--- /dev/null
+++ b/Src/Wasabi/api/wnd/popexitchecker.cpp
@@ -0,0 +1,79 @@
+#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 ?
+    }
+  }
+}