Refactor widget creation in app.cpp to use std::make_unique for Wt::WContainerWidget and Wt::WText, improving memory management and code clarity.

src/app.cpp

@@ -245,7 +245,7 @@ Wt::WVBoxLayout *App::createVerticalLayout() {
 }
 
 Wt::WHBoxLayout *App::createActionLayout(Wt::WVBoxLayout *verticalContainer) {
-    auto horizontalBox = verticalContainer->addNew<Wt::WContainerWidget>();
+    auto horizontalBox = verticalContainer->addWidget(std::make_unique<Wt::WContainerWidget>());
     horizontalBox->setStyleClass("horizontal-box");
     auto horizontalContainer = horizontalBox->setLayout(std::make_unique<Wt::WHBoxLayout>());
     horizontalContainer->setContentsMargins(0, 0, 0, 0);
@@ -254,7 +254,7 @@ Wt::WHBoxLayout *App::createActionLayout(Wt::WVBoxLayout *verticalContainer) {
 }
 
 void App::createHeadContainer(Wt::WVBoxLayout *layout) {
-    auto header = layout->addNew<Wt::WContainerWidget>();
+    auto header = layout->addWidget(std::make_unique<Wt::WContainerWidget>());
     header->addNew<Wt::WText>("<h1>ypChat</h1>")->setInline(true);
     header->addNew<Wt::WText>((std::string)"<script async src=""https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-pub-1104166651501135"" " +
                               " crossorigin=""anonymous""></script>" +
@@ -272,7 +272,7 @@ void App::createHeadContainer(Wt::WVBoxLayout *layout) {
 }
 
 void App::createMenuContainer(Wt::WVBoxLayout *layout) {
-    menuContainer_ = layout->addNew<Wt::WContainerWidget>();
+    menuContainer_ = layout->addWidget(std::make_unique<Wt::WContainerWidget>());
     menuContainer_->setStyleClass("menu");
 }
 
@@ -438,7 +438,7 @@ void App::updateUserlist(Wt::Json::Array unsortedUserList, int size) {
     layout->setContentsMargins(0, 0, 0, 0);
     userListContainer_->setOverflow(Wt::Overflow::Auto, Wt::Orientation::Vertical);
     userListContainer_->setOverflow(Wt::Overflow::Hidden, Wt::Orientation::Horizontal);
-    layout->addNew<Wt::WText>(Wt::WString("Logged in: {1}").arg(size));
+    layout->addWidget(std::make_unique<Wt::WText>(Wt::WString("Logged in: {1}").arg(size)));
     auto sortedUserList = sortUserList(unsortedUserList);
     for (Wt::Json::Object &user: sortedUserList) {
         addUserItemToLayout(layout, user);
@@ -519,11 +519,12 @@ void App::setupConversationUI(Wt::Json::Object userData) {
 }
 
 Wt::WContainerWidget* App::createInfoWidget(Wt::WVBoxLayout *layout, Wt::Json::Object userData) {
-    auto infoWidget = layout->addNew<Wt::WContainerWidget>();
+    auto infoWidget = layout->addWidget(std::make_unique<Wt::WContainerWidget>());
     try {
         auto infoLayout = infoWidget->setLayout(std::make_unique<Wt::WHBoxLayout>());
         infoWidget->setStyleClass(Wt::WString("user-conversation-info userlist-gender-{1}").arg((std::string)userData["gender"]));
-        auto flag = infoLayout->addNew<Wt::WImage>(Wt::WLink(std::make_shared<Wt::WFileResource>("../docroot/flags/" + (std::string)userData["isoCountryCode"] + ".png")));
+        auto flag = infoLayout->addWidget(std::make_unique<Wt::WImage>(
+            Wt::WLink(std::make_shared<Wt::WFileResource>("../docroot/flags/" + (std::string)userData["isoCountryCode"] + ".png"))));
         flag->setToolTip(country);
         flag->setStyleClass("flag-icon");
         infoLayout->addWidget(createInfoText(userData), 1);
@@ -549,7 +550,7 @@ std::unique_ptr<Wt::WPushButton> App::createBlockButton(Wt::Json::Object userDat
 }
 
 Wt::WContainerWidget* App::createInputContainer(Wt::WVBoxLayout* layout) {
-    auto inputContainer = layout->addNew<Wt::WContainerWidget>();
+    auto inputContainer = layout->addWidget(std::make_unique<Wt::WContainerWidget>());
     auto inputLayout = inputContainer->setLayout(std::make_unique<Wt::WHBoxLayout>());
     auto inputLine = createInputLine(inputLayout);
     inputLine->setFocus();
@@ -574,7 +575,7 @@ Wt::WLineEdit* App::createInputLine(Wt::WHBoxLayout* inputLayout) {
 }
 
 Wt::WImage* App::createSendImageButton(Wt::WHBoxLayout* inputLayout) {
-    auto sendImageButton = inputLayout->addNew<Wt::WImage>(Wt::WLink("/image.png"));
+    auto sendImageButton = inputLayout->addWidget(std::make_unique<Wt::WImage>(Wt::WLink("/image.png")));
     sendImageButton->setToolTip("Send an image");
     sendImageButton->clicked().connect(this, &App::sendImage);
     return sendImageButton;
@@ -583,14 +584,14 @@ Wt::WImage* App::createSendImageButton(Wt::WHBoxLayout* inputLayout) {
 void App::sendImage() {
     auto fileDialog = root()->addNew<Wt::WDialog>("Send Image to User");
     auto layout = fileDialog->contents()->setLayout(std::make_unique<Wt::WVBoxLayout>());
-    layout->addNew<Wt::WText>("Please select an immage");
+    layout->addWidget(std::make_unique<Wt::WText>("Please select an immage"));
-    auto fileWidget = layout->addNew<Wt::WFileUpload>();
+    auto fileWidget = layout->addWidget(std::make_unique<Wt::WFileUpload>());
     fileWidget->setFilters("image/*");
-    auto image = layout->addNew<Wt::WImage>();
+    auto image = layout->addWidget(std::make_unique<Wt::WImage>());
     image->setMaximumSize(Wt::WLength(100, Wt::LengthUnit::Pixel), Wt::WLength(100, Wt::LengthUnit::Pixel));
     image->setHeight(Wt::WLength::Auto);
     auto localImage = std::make_shared<Magick::Blob>();
-    auto buttonsContainer = layout->addNew<Wt::WContainerWidget>();
+    auto buttonsContainer = layout->addWidget(std::make_unique<Wt::WContainerWidget>());
     auto okButton = buttonsContainer->addNew<Wt::WPushButton>("Send image");
     fileWidget->uploaded().connect([=, this]() mutable {
         imageUploaded(fileWidget, localImage, image, okButton);
@@ -924,7 +925,7 @@ Wt::WWebWidget* App::createTextElement(const std::string& writer, const std::str
 }
 
 void App::createImprintContainer(Wt::WVBoxLayout *containerLayout) {
-    auto imprintContainer = containerLayout->addNew<Wt::WContainerWidget>();
+    auto imprintContainer = containerLayout->addWidget(std::make_unique<Wt::WContainerWidget>());
     imprintContainer->setContentAlignment(Wt::AlignmentFlag::Justify);
     imprintContainer->setPadding(Wt::WLength(0.5, Wt::LengthUnit::FontEm));
     auto partnerPagesButton = imprintContainer->addNew<Wt::WText>("Partners");
@@ -1208,7 +1209,7 @@ Wt::WVBoxLayout *App::resetSearchFields() {
     contentContainer_->clear();
     inboxOpen_ = false;
     auto contentLayout = contentContainer_->setLayout(std::make_unique<Wt::WVBoxLayout>());
-    contentLayout->addNew<Wt::WText>("<h2>Search</h2>");
+    contentLayout->addWidget(std::make_unique<Wt::WText>("<h2>Search</h2>"));
     return contentLayout;
 }
 
@@ -1272,7 +1273,7 @@ void App::addItem(const std::string& country, Wt::WContainerWidget *dropDownCont
 
 void App::addUserItemToLayout(Wt::WVBoxLayout *layout, Wt::Json::Object userObject) {
     auto userName = (std::string)userObject["name"];
-    auto line = layout->addNew<Wt::WContainerWidget>();
+    auto line = layout->addWidget(std::make_unique<Wt::WContainerWidget>());
     auto flag = line->addNew<Wt::WImage>(Wt::WLink(std::make_shared<Wt::WFileResource>("../docroot/flags/" + (std::string)userObject["isoCountryCode"] + ".png")));
     flag->setMaximumSize(Wt::WLength(60, Wt::LengthUnit::Pixel), Wt::WLength(20, Wt::LengthUnit::Pixel));
     flag->setHeight(Wt::WLength(2, Wt::LengthUnit::FontEm));
@@ -1578,12 +1579,12 @@ void App::startChat() {
 }
 
 void App::createUserListContainer(Wt::WHBoxLayout *layout) {
-    userListContainer_ = layout->addNew<Wt::WContainerWidget>();
+    userListContainer_ = layout->addWidget(std::make_unique<Wt::WContainerWidget>());
     userListContainer_->setStyleClass("userlist");
 }
 
 void App::createContentContainer(Wt::WHBoxLayout *layout) {
-    contentContainer_ = layout->addNew<Wt::WContainerWidget>();
+    contentContainer_ = layout->addWidget(std::make_unique<Wt::WContainerWidget>());
     contentContainer_->setStyleClass("content");
 }
 
@@ -1672,13 +1673,14 @@ bool App::isNickAllowed(const std::string& nick) {
 
 template<class Class>
 Class *App::addSearchItemLine(Wt::WVBoxLayout *layout, std::string label, std::unique_ptr<Wt::WContainerWidget> additionalItem) {
-    auto lineContainer = layout->addNew<Wt::WContainerWidget>();
+    auto lineContainer = layout->addWidget(std::make_unique<Wt::WContainerWidget>());
     lineContainer->setStyleClass("search-line");
     lineContainer->setPositionScheme(Wt::PositionScheme::Relative);
     auto lineLayout = lineContainer->setLayout(std::make_unique<Wt::WHBoxLayout>());
     lineContainer->setPadding(Wt::WLength("0"));
     lineContainer->setMargin(Wt::WLength("0"));
-    lineLayout->addNew<Wt::WText>(label)->setWidth(Wt::WLength(9, Wt::LengthUnit::FontEm));
+    auto labelWidget = lineLayout->addWidget(std::make_unique<Wt::WText>(label));
+    labelWidget->setWidth(Wt::WLength(9, Wt::LengthUnit::FontEm));
     lineLayout->setContentsMargins(0, 0, 0, 0);
     lineLayout->setSpacing(0);
     auto input = std::make_unique<Class>();