Refactor DialogManager.3

src/dialogs/DialogManager.cpp

@@ -7,6 +7,7 @@
 #include <QApplication>
 #include <QWidget>
 #include <QThread>
+#include <qDebug>
 
 #include "event/EventCenter.h"
 #include "dialogs/GUIMessageDialog.h"
@@ -21,6 +22,7 @@ DialogManager::DialogManager()
 : QObject()
 , mFunctionDialog(nullptr)
 , mMessageDialog(nullptr)
+, topWidget(nullptr)
 {
 
 }
@@ -33,9 +35,32 @@ void DialogManager::init() {
     connect(EventCenter::Default(), &EventCenter::InvokeOperationEnd,this,&DialogManager::invokeOperationEnd);
 }
 
-QWidget *DialogManager::getTopWidget() {
-    if (!topWidgetStore.isEmpty()) return topWidgetStore.top();
-    return QApplication::activeWindow();
+//得考虑多线程的问题
+void DialogManager::setTopWidget(QWidget* widget) {
+    std::lock_guard<std::mutex> lockGuard(mutex);
+    if (!topWidget&& QApplication::activeWindow()){
+        topWidget = QApplication::activeWindow();
+    }
+    qDebug()<<"last top:"<<topWidget->objectName()<<", new top:"<<widget->objectName();
+    widget->setParent(topWidget,widget->windowFlags());
+    topWidget = widget;
+    ++mDialogCount;
+}
+
+void DialogManager::releaseTopWidget(QWidget* expectedTopWidget) {
+    std::lock_guard<std::mutex> lockGuard(mutex);
+    if (topWidget == expectedTopWidget){
+        topWidget = expectedTopWidget->parentWidget();
+    }
+    else{
+        while (auto tempWidget = topWidget->parentWidget()){
+            if (tempWidget->parentWidget() == expectedTopWidget){
+                tempWidget->setParent(expectedTopWidget->parentWidget());
+                break;
+            }
+        }
+    }
+    --mDialogCount;
 }
 
 void DialogManager::requestLogin()
@@ -44,57 +69,59 @@ void DialogManager::requestLogin()
     if (!mFunctionDialog){
         mFunctionDialog = new LoginDialog;
     }
+    mFunctionDialog->setWindowModality(Qt::WindowModal);
     mFunctionDialog->exec();
     while (QDialog::Accepted != mFunctionDialog->result())
     {
+
         mFunctionDialog->exec();
     }
 }
 
 int DialogManager::requestAddAccount(QSqlTableModel* model) {
-    AccountFormDialog dialog(getTopWidget(), New);
-    topWidgetStore.push(&dialog);
+    AccountFormDialog dialog(nullptr, New);
+    setTopWidget(&dialog);
     dialog.setWindowModality(Qt::WindowModal);
     dialog.setReferenceModel(model);
     int ret =  dialog.exec();
-    topWidgetStore.pop();
+    releaseTopWidget(&dialog);
     return ret;
 }
 
 int DialogManager::requestEditSelfAccount() {
-    AccountFormDialog dialog(getTopWidget(), Self);
-    topWidgetStore.push(&dialog);
+    AccountFormDialog dialog(nullptr, Self);
+    setTopWidget(&dialog);
     dialog.setWindowModality(Qt::WindowModal);
     int ret =  dialog.exec();
-    topWidgetStore.pop();
+    releaseTopWidget(&dialog);
     return ret;
 }
 
 int DialogManager::requestEditAdminAccount(const QMap<QString, QVariant>& values) {
-    AccountFormDialog dialog(getTopWidget(), Admin);
-    topWidgetStore.push(&dialog);
+    AccountFormDialog dialog(nullptr, Admin);
+    setTopWidget(&dialog);
     dialog.setAccountInformation(values);
     dialog.setWindowModality(Qt::WindowModal);
     int ret =  dialog.exec();
-    topWidgetStore.pop();
+    releaseTopWidget(&dialog);
     return ret;
 }
 
 void DialogManager::requestChangePassword() {
-    ChangePasswordFormDialog dialog(getTopWidget());
-    topWidgetStore.push(&dialog);
-    dialog.setGeometry(getTopWidget()->geometry());
+    ChangePasswordFormDialog dialog;
+    setTopWidget(&dialog);
+    dialog.setGeometry(dialog.parentWidget()->geometry());
     dialog.setWindowModality(Qt::WindowModal);
     dialog.exec();
-    topWidgetStore.pop();
+    releaseTopWidget(&dialog);
 }
 
 //考虑以后使用另外的dialog显示错误
 void DialogManager::raiseDeviceError(QObject *parent, QObject *msg) {
-    if (!this->getTopWidget()->isVisible()) return;
     clearMessageDialog();
     //new dialog
-    auto dialog = new GUIMessageDialog(this->getTopWidget());
+    auto dialog = new GUIMessageDialog;
+
     if (msg) {
         QString *str = (QString *) msg;
         dialog->showMessage(*str);
@@ -103,11 +130,11 @@ void DialogManager::raiseDeviceError(QObject *parent, QObject *msg) {
     }
     dialog->stopLoading();
     dialog->showExitButton();
-    topWidgetStore.push(dialog);
+    setTopWidget(dialog);
     dialog->setWindowModality(Qt::NonModal);
     dialog->exec();
-    auto lastDialog = topWidgetStore.pop();
-    lastDialog->deleteLater();
+    releaseTopWidget(dialog);
+    dialog->deleteLater();
 }
 
 // 扫描过程 dialog 只能为最底层，并且会被error dialog 清除！
@@ -115,9 +142,9 @@ void DialogManager::invokeOperationStart(QObject *parent, QObject *msg) {
     //没有目标parent 撤销操作
     if (!QApplication::activeWindow()) return;
     //只能在最底层窗口上模态
-    if (!topWidgetStore.isEmpty()) return;
+    if (mDialogCount>0) return;
     clearMessageDialog();
-    mMessageDialog = new GUIMessageDialog(this->getTopWidget());
+    mMessageDialog = new GUIMessageDialog(QApplication::activeWindow());
     if (msg)
     {
         QString* str = (QString*)msg;