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// popup.cpp : This file contains the 'main' function. Program execution begins and ends there.
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//
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#pragma warning(push)
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#pragma warning(disable: 4267) // wt\wstringstream.h(110): warning C4267: 'argument': conversion from 'size_t' to 'int', possible loss of data
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#include <Wt/WApplication.h>
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#include <Wt/WContainerWidget.h>
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#include <Wt/WVBoxLayout.h>
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#include <Wt/WText.h>
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#include <Wt/WLineEdit.h>
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#include <Wt/WCompositeWidget.h>
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#include <Wt/WCssStyleSheet.h>
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#include <Wt/WPushButton.h>
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#include <Wt/WDialog.h>
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#pragma warning(pop)
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class Popup : public Wt::WCompositeWidget
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{
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std::unique_ptr<Wt::WText> popup;
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bool in{false};
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Wt::WLineEdit* edit{};
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public:
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Popup (const std::string& what)
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{
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using namespace Wt;
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using std::make_unique;
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WCssDecorationStyle style;
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style.setBackgroundColor(WColor{"yellow"});
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wApp->styleSheet().addRule(".foo", style);
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popup = make_unique<WText>("popup");
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popup->setPositionScheme(PositionScheme::Absolute);
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popup->setPopup(true);
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popup->resize(250, 150);
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popup->addStyleClass("foo");
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popup->addStyleClass("wt-no-reparent"); // Workaround for strange scrolling behaviour after update to 3.3.2 (removed with commit: 0e5edc630ad542cda9294e1449a537363d069d67)
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edit = setImplementation(make_unique<WLineEdit>(what));
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edit->focussed().connect(this, &Popup::OnFocussed);
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edit->blurred().connect(this, &Popup::OnBlurred);
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}
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~Popup ()
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{
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if (in) {
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wApp->removeGlobalWidget(popup.get());
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}
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}
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void OnBlurred ()
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{
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if (in) {
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wApp->removeGlobalWidget(popup.get());
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in = false;
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}
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}
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void OnFocussed ()
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{
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if (!in) {
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wApp->addGlobalWidget(popup.get());
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popup->positionAt(edit);
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in = true;
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}
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}
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};
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class App : public Wt::WApplication {
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public:
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App (const Wt::WEnvironment& env) : WApplication(env)
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{
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using namespace Wt;
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using std::make_unique;
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auto wrapper = root()->setLayout(make_unique<WVBoxLayout>());
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auto scollarea = wrapper->addWidget(make_unique<WContainerWidget>());
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scollarea->setOverflow(Overflow::Auto);
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auto contents = scollarea->addWidget(make_unique<WContainerWidget>());
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auto layout = contents->setLayout(make_unique<WVBoxLayout>());
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for (int i = 0; i < 10; ++i) {
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layout->addWidget(make_unique<Popup>("Hello, World!"));
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}
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auto btn = layout->addWidget(make_unique<WPushButton>("dlg"));
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btn->clicked().connect(this, &App::OpenDialog);
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layout->addStretch(1);
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}
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void OpenDialog ()
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{
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using namespace Wt;
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using std::make_unique;
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auto dlg = make_unique<WDialog>("title");
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auto wrapper = dlg->contents()->setLayout(make_unique<WVBoxLayout>());
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auto scollarea = wrapper->addWidget(make_unique<WContainerWidget>());
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scollarea->setOverflow(Overflow::Auto);
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auto contents = scollarea->addWidget(make_unique<WContainerWidget>());
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auto layout = contents->setLayout(make_unique<WVBoxLayout>());
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for (int i = 0; i < 10; ++i) layout->addWidget(make_unique<Popup>("Hello, World!"));
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dlg->setClosable(true);
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dlg->setResizable(true);
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dlg->setMinimumSize(150, 150);
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dlg->resize(230, 280);
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dlg->exec();
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}
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static std::unique_ptr<Wt::WApplication> Create (const Wt::WEnvironment& env) {
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return std::make_unique<App>(env);
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}
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};
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#include <iostream>
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#include <Wt/WServer.h>
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int main(int argc, char** argv)
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{
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try {
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Wt::WLayout::setDefaultImplementation(Wt::LayoutImplementation::JavaScript); // use old layout behaviour
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Wt::WServer server(argc, argv);
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server.addEntryPoint(Wt::EntryPointType::Application, &App::Create);
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server.run();
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return EXIT_SUCCESS;
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}
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catch (std::exception& e) {
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std::cerr << e.what() << "\n";
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return EXIT_FAILURE;
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}
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}
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