diff --git a/src/dialogs/PreviewUploadOverlay.cc b/src/dialogs/PreviewUploadOverlay.cc
new file mode 100644
index 00000000..f2007011
--- /dev/null
+++ b/src/dialogs/PreviewUploadOverlay.cc
@@ -0,0 +1,170 @@
+/*
+ * nheko Copyright (C) 2017 Konstantinos Sideris <siderisk@auth.gr>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <QApplication>
+#include <QBuffer>
+#include <QDebug>
+#include <QFile>
+#include <QFileInfo>
+#include <QHBoxLayout>
+#include <QMimeDatabase>
+#include <QVBoxLayout>
+
+#include "Config.h"
+#include "Utils.h"
+
+#include "dialogs/PreviewUploadOverlay.h"
+
+using namespace dialogs;
+
+static constexpr const char *DEFAULT = "Upload %1?";
+static constexpr const char *ERROR = "Failed to load image type '%1'. Continue upload?";
+
+PreviewUploadOverlay::PreviewUploadOverlay(QWidget *parent)
+ : QWidget{parent}
+ , titleLabel_{this}
+ , fileName_{this}
+ , upload_{tr("Upload"), this}
+ , cancel_{tr("Cancel"), this}
+{
+ auto hlayout = new QHBoxLayout;
+ hlayout->addWidget(&upload_);
+ hlayout->addWidget(&cancel_);
+
+ auto vlayout = new QVBoxLayout{this};
+ vlayout->addWidget(&titleLabel_);
+ vlayout->addWidget(&infoLabel_);
+ vlayout->addWidget(&fileName_);
+ vlayout->addLayout(hlayout);
+
+ connect(&upload_, &QPushButton::clicked, [&]() {
+ emit confirmUpload(data_, mediaType_, fileName_.text());
+ close();
+ });
+ connect(&cancel_, &QPushButton::clicked, this, &PreviewUploadOverlay::close);
+}
+
+void
+PreviewUploadOverlay::init()
+{
+ auto window = QApplication::activeWindow();
+ auto winsize = window->frameGeometry().size();
+ auto center = window->frameGeometry().center();
+ auto img_size = image_.size();
+
+ fileName_.setText(QFileInfo{filePath_}.fileName());
+
+ setAutoFillBackground(true);
+ setWindowFlags(Qt::Tool | Qt::WindowStaysOnTopHint);
+ setWindowModality(Qt::WindowModal);
+
+ titleLabel_.setStyleSheet(
+ QString{"font-weight: bold; font-size: %1px;"}.arg(conf::headerFontSize));
+ titleLabel_.setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+ titleLabel_.setAlignment(Qt::AlignCenter);
+ infoLabel_.setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Maximum);
+ fileName_.setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
+ fileName_.setAlignment(Qt::AlignCenter);
+ upload_.setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
+ cancel_.setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
+ upload_.setFontSize(conf::btn::fontSize);
+ cancel_.setFontSize(conf::btn::fontSize);
+
+ if (isImage_) {
+ infoLabel_.setAlignment(Qt::AlignCenter);
+
+ // Scale image preview to the size of the current window if it is larger.
+ if ((img_size.height() * img_size.width()) > (winsize.height() * winsize.width())) {
+ infoLabel_.setPixmap(image_.scaled(winsize, Qt::KeepAspectRatio));
+ } else {
+ infoLabel_.setPixmap(image_);
+ move(center.x() - (width() * 0.5), center.y() - (height() * 0.5));
+ }
+ } else {
+ infoLabel_.setAlignment(Qt::AlignLeft);
+ }
+ infoLabel_.setScaledContents(false);
+
+ show();
+}
+
+void
+PreviewUploadOverlay::setLabels(const QString &type, const QString &mime, const int upload_size)
+{
+ if (mediaType_ == "image") {
+ if (!image_.loadFromData(data_)) {
+ titleLabel_.setText(QString{tr(ERROR)}.arg(type));
+ } else {
+ titleLabel_.setText(QString{tr(DEFAULT)}.arg(mediaType_));
+ }
+ isImage_ = true;
+ } else {
+ auto const info = QString{tr("Media type: %1\n"
+ "Media size: %2\n")}
+ .arg(mime)
+ .arg(utils::humanReadableFileSize(upload_size));
+
+ titleLabel_.setText(QString{tr(DEFAULT)}.arg("file"));
+ infoLabel_.setText(info);
+ }
+}
+
+void
+PreviewUploadOverlay::setPreview(const QByteArray data, const QString &mime)
+{
+ auto const &split = mime.split('/');
+ auto const &type = split[1];
+
+ data_ = data;
+ mediaType_ = split[0];
+ filePath_ = "clipboard." + type;
+ isImage_ = false;
+
+ setLabels(type, mime, data_.size());
+ init();
+}
+
+void
+PreviewUploadOverlay::setPreview(const QString &path)
+{
+ QFile file{path};
+
+ if (!file.open(QIODevice::ReadOnly)) {
+ qWarning() << "Failed to open file from:" << path;
+ qWarning() << "Reason:" << file.errorString();
+ close();
+ return;
+ }
+
+ QMimeDatabase db;
+ auto mime = db.mimeTypeForFileNameAndData(path, &file);
+
+ if ((data_ = file.readAll()).isEmpty()) {
+ qWarning() << "Failed to read media:" << file.errorString();
+ close();
+ return;
+ }
+
+ auto const &split = mime.name().split('/');
+
+ mediaType_ = split[0];
+ filePath_ = file.fileName();
+ isImage_ = false;
+
+ setLabels(split[1], mime.name(), data_.size());
+ init();
+}
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