Changeset 133 for trunk/src/gui/kernel/qapplication_pm.cpp

Timestamp:

Aug 27, 2009, 1:32:24 AM (16 years ago)

Author:

Dmitry A. Kuminov

Message:

gui: Implemented popup window open/close.

File:

• trunk/src/gui/kernel/qapplication_pm.cpp (modified) (2 diffs)

trunk/src/gui/kernel/qapplication_pm.cpp

@@ -439 +439 @@
 QWidget *QApplication::topLevelAt(const QPoint &pos)
 {
-    // @todo implement
-    return 0;
+    // flip y coordinate
+    int y = desktop()->height() - (pos.y() + 1);
+    POINTL ptl = { pos.x(), y };
+    HWND hwnd = WinWindowFromPoint(HWND_DESKTOP, &ptl, FALSE);
+    if (hwnd == NULLHANDLE)
+        return 0;
+
+    QWidget *w = qWidgetFromHWND(hwnd);
+    return w ? w->window() : 0;
 }
 
@@ -932 +939 @@
 void QApplicationPrivate::openPopup(QWidget *popup)
 {
-    // @todo implement
+    if (!QApplicationPrivate::popupWidgets)
+        QApplicationPrivate::popupWidgets = new QWidgetList;
+    QApplicationPrivate::popupWidgets->append(popup);
+    if (!popup->isEnabled())
+        return;
+
+    if (QApplicationPrivate::popupWidgets->count() == 1 && !qt_nograb()) {
+        Q_ASSERT(popup->testAttribute(Qt::WA_WState_Created));
+        setAutoCapture(popup->d_func()->frameWinId()); // grab mouse/keyboard
+    }
+    // Popups are not focus-handled by the window system (the first
+    // popup grabbed the keyboard), so we have to do that manually: A
+    // new popup gets the focus
+    if (popup->focusWidget()) {
+        popup->focusWidget()->setFocus(Qt::PopupFocusReason);
+    } else if (QApplicationPrivate::popupWidgets->count() == 1) { // this was the first popup
+        if (QWidget *fw = q_func()->focusWidget()) {
+            QFocusEvent e(QEvent::FocusOut, Qt::PopupFocusReason);
+            q_func()->sendEvent(fw, &e);
+        }
+    }
 }
 
 void QApplicationPrivate::closePopup(QWidget *popup)
 {
-    // @todo implement
+    if (!QApplicationPrivate::popupWidgets)
+        return;
+    QApplicationPrivate::popupWidgets->removeAll(popup);
+    POINTL curPos;
+    WinQueryPointerPos(HWND_DESKTOP, &curPos);
+    // flip y coordinate
+    curPos.y = q_func()->desktop()->height() - (curPos.y + 1);
+
+    if (QApplicationPrivate::popupWidgets->isEmpty()) { // this was the last popup
+        delete QApplicationPrivate::popupWidgets;
+        QApplicationPrivate::popupWidgets = 0;
+        replayPopupMouseEvent = (!popup->geometry().contains(QPoint(curPos.x, curPos.y))
+                                && !popup->testAttribute(Qt::WA_NoMouseReplay));
+        if (!popup->isEnabled())
+            return;
+        if (!qt_nograb())                        // grabbing not disabled
+            releaseAutoCapture();
+        QWidget *fw = QApplicationPrivate::active_window ? QApplicationPrivate::active_window->focusWidget()
+            : q_func()->focusWidget();
+        if (fw) {
+            if (fw != q_func()->focusWidget()) {
+                fw->setFocus(Qt::PopupFocusReason);
+            } else {
+                QFocusEvent e(QEvent::FocusIn, Qt::PopupFocusReason);
+                q_func()->sendEvent(fw, &e);
+            }
+        }
+    } else {
+        // Popups are not focus-handled by the window system (the
+        // first popup grabbed the keyboard), so we have to do that
+        // manually: A popup was closed, so the previous popup gets
+        // the focus.
+        QWidget* aw = QApplicationPrivate::popupWidgets->last();
+        if (QApplicationPrivate::popupWidgets->count() == 1) {
+            Q_ASSERT(aw->testAttribute(Qt::WA_WState_Created));
+            setAutoCapture(aw->internalWinId());
+        }
+        if (QWidget *fw = aw->focusWidget())
+            fw->setFocus(Qt::PopupFocusReason);
+    }
 }