diff --git a/src/dialogs/InviteUsers.cc b/src/dialogs/InviteUsers.cc
new file mode 100644
index 00000000..22042453
--- /dev/null
+++ b/src/dialogs/InviteUsers.cc
@@ -0,0 +1,149 @@
+#include <QDebug>
+#include <QIcon>
+#include <QListWidget>
+#include <QListWidgetItem>
+#include <QStyleOption>
+#include <QTimer>
+#include <QVBoxLayout>
+
+#include "Config.h"
+#include "FlatButton.h"
+#include "TextField.h"
+
+#include "InviteeItem.h"
+#include "dialogs/InviteUsers.h"
+
+#include "mtx.hpp"
+
+using namespace dialogs;
+
+InviteUsers::InviteUsers(QWidget *parent)
+ : QFrame(parent)
+{
+ setMaximumSize(400, 350);
+
+ auto layout = new QVBoxLayout(this);
+ layout->setSpacing(30);
+ layout->setMargin(20);
+
+ auto buttonLayout = new QHBoxLayout();
+ buttonLayout->setSpacing(0);
+ buttonLayout->setMargin(0);
+
+ confirmBtn_ = new FlatButton("INVITE", this);
+ confirmBtn_->setFontSize(conf::btn::fontSize);
+
+ cancelBtn_ = new FlatButton(tr("CANCEL"), this);
+ cancelBtn_->setFontSize(conf::btn::fontSize);
+
+ buttonLayout->addStretch(1);
+ buttonLayout->addWidget(confirmBtn_);
+ buttonLayout->addWidget(cancelBtn_);
+
+ QFont font;
+ font.setPixelSize(conf::headerFontSize);
+
+ inviteeInput_ = new TextField(this);
+ inviteeInput_->setLabel(tr("User ID to invite"));
+
+ inviteeList_ = new QListWidget;
+ inviteeList_->setFrameStyle(QFrame::NoFrame);
+ inviteeList_->setSelectionMode(QAbstractItemView::NoSelection);
+ inviteeList_->setAttribute(Qt::WA_MacShowFocusRect, 0);
+ inviteeList_->setSpacing(5);
+
+ errorLabel_ = new QLabel(this);
+ errorLabel_->setAlignment(Qt::AlignCenter);
+ font.setPixelSize(12);
+ errorLabel_->setFont(font);
+
+ layout->addWidget(inviteeInput_);
+ layout->addWidget(errorLabel_);
+ layout->addWidget(inviteeList_);
+ layout->addLayout(buttonLayout);
+
+ connect(inviteeInput_, &TextField::returnPressed, this, &InviteUsers::addUser);
+ connect(confirmBtn_, &QPushButton::clicked, [=]() {
+ emit closing(true, invitedUsers());
+
+ inviteeInput_->clear();
+ inviteeList_->clear();
+ errorLabel_->hide();
+ });
+
+ connect(cancelBtn_, &QPushButton::clicked, [=]() {
+ QStringList emptyList;
+ emit closing(false, emptyList);
+
+ inviteeInput_->clear();
+ inviteeList_->clear();
+ errorLabel_->hide();
+ });
+}
+
+void
+InviteUsers::addUser()
+{
+ auto user_id = inviteeInput_->text();
+
+ try {
+ namespace ids = mtx::identifiers;
+ auto user = ids::parse<ids::User>(user_id.toStdString());
+
+ auto item = new QListWidgetItem(inviteeList_);
+ auto invitee = new InviteeItem(user, this);
+
+ item->setSizeHint(invitee->minimumSizeHint());
+ item->setFlags(Qt::NoItemFlags);
+ item->setTextAlignment(Qt::AlignCenter);
+
+ inviteeList_->setItemWidget(item, invitee);
+
+ connect(invitee, &InviteeItem::removeItem, this, [this, item]() {
+ emit removeInvitee(item);
+ });
+
+ errorLabel_->hide();
+ inviteeInput_->clear();
+ } catch (std::exception &e) {
+ errorLabel_->setText(e.what());
+ errorLabel_->show();
+ }
+}
+
+void
+InviteUsers::removeInvitee(QListWidgetItem *item)
+{
+ int row = inviteeList_->row(item);
+ auto widget = inviteeList_->takeItem(row);
+
+ inviteeList_->removeItemWidget(widget);
+}
+
+void
+InviteUsers::paintEvent(QPaintEvent *)
+{
+ QStyleOption opt;
+ opt.init(this);
+ QPainter p(this);
+ style()->drawPrimitive(QStyle::PE_Widget, &opt, &p, this);
+}
+
+QStringList
+InviteUsers::invitedUsers() const
+{
+ QStringList users;
+
+ for (int ii = 0; ii < inviteeList_->count(); ++ii) {
+ auto item = inviteeList_->item(ii);
+ auto widget = inviteeList_->itemWidget(item);
+ auto invitee = qobject_cast<InviteeItem *>(widget);
+
+ if (invitee)
+ users << invitee->userID();
+ else
+ qDebug() << "Cast InviteeItem failed";
+ }
+
+ return users;
+}
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