created directory for dialogs

src/widgets/dialogs/QualityPopup.cpp

@@ -0,0 +1,61 @@
+#include "QualityPopup.hpp"
+#include "debug/Log.hpp"
+#include "util/StreamLink.hpp"
+
+namespace chatterino {
+namespace widgets {
+
+QualityPopup::QualityPopup(const QString &_channelName, QStringList options)
+    : channelName(_channelName)
+{
+    this->ui_.okButton.setText("OK");
+    this->ui_.cancelButton.setText("Cancel");
+
+    QObject::connect(&this->ui_.okButton, &QPushButton::clicked, this,
+                     &QualityPopup::okButtonClicked);
+    QObject::connect(&this->ui_.cancelButton, &QPushButton::clicked, this,
+                     &QualityPopup::cancelButtonClicked);
+
+    this->ui_.buttonBox.addButton(&this->ui_.okButton, QDialogButtonBox::ButtonRole::AcceptRole);
+    this->ui_.buttonBox.addButton(&this->ui_.cancelButton, QDialogButtonBox::ButtonRole::RejectRole);
+
+    this->ui_.selector.addItems(options);
+
+    this->ui_.vbox.addWidget(&this->ui_.selector);
+    this->ui_.vbox.addWidget(&this->ui_.buttonBox);
+
+    this->setLayout(&this->ui_.vbox);
+}
+
+void QualityPopup::showDialog(const QString &channelName, QStringList options)
+{
+    QualityPopup *instance = new QualityPopup(channelName, options);
+
+    instance->setAttribute(Qt::WA_DeleteOnClose, true);
+
+    instance->show();
+    instance->activateWindow();
+    instance->raise();
+    instance->setFocus();
+}
+
+void QualityPopup::okButtonClicked()
+{
+    QString channelURL = "twitch.tv/" + this->channelName;
+
+    try {
+        streamlink::OpenStreamlink(channelURL, this->ui_.selector.currentText());
+    } catch (const streamlink::Exception &ex) {
+        debug::Log("Exception caught trying to open streamlink: {}", ex.what());
+    }
+
+    this->close();
+}
+
+void QualityPopup::cancelButtonClicked()
+{
+    this->close();
+}
+
+}  // namespace widgets
+}  // namespace chatterino