1 files changed, 109 insertions, 0 deletions
diff --git a/examples/webenginewidgets/simplebrowser/downloadwidget.py b/examples/webenginewidgets/simplebrowser/downloadwidget.py
new file mode 100644
index 000000000..3b4973cb8
--- /dev/null
+++ b/examples/webenginewidgets/simplebrowser/downloadwidget.py
@@ -0,0 +1,109 @@
+# Copyright (C) 2023 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+from ui_downloadwidget import Ui_DownloadWidget
+
+from PySide6.QtWebEngineCore import QWebEngineDownloadRequest
+from PySide6.QtWidgets import QFrame, QWidget
+from PySide6.QtGui import QIcon
+from PySide6.QtCore import QElapsedTimer, Signal, Slot
+
+
+def with_unit(bytes):
+    if bytes < (1 << 10):
+        return f"{bytes} B"
+    if bytes < (1 << 20):
+        s = bytes / (1 << 10)
+        return f"{int(s)} KiB"
+    if bytes < (1 << 30):
+        s = bytes / (1 << 20)
+        return f"{int(s)} MiB"
+    s = bytes / (1 << 30)
+    return f"{int(s)} GiB"
+
+
+class DownloadWidget(QFrame):
+    """Displays one ongoing or finished download (QWebEngineDownloadRequest)."""
+
+    # This signal is emitted when the user indicates that they want to remove
+    # this download from the downloads list.
+    remove_clicked = Signal(QWidget)
+
+    def __init__(self, download, parent=None):
+        super().__init__(parent)
+        self._download = download
+        self._time_added = QElapsedTimer()
+        self._time_added.start()
+        self._cancel_icon = QIcon.fromTheme(QIcon.ThemeIcon.ProcessStop,
+                                            QIcon(":process-stop.png"))
+        self._remove_icon = QIcon.fromTheme(QIcon.ThemeIcon.EditClear,
+                                            QIcon(":edit-clear.png"))
+
+        self._ui = Ui_DownloadWidget()
+        self._ui.setupUi(self)
+        self._ui.m_dstName.setText(self._download.downloadFileName())
+        self._ui.m_srcUrl.setText(self._download.url().toDisplayString())
+
+        self._ui.m_cancelButton.clicked.connect(self._canceled)
+
+        self._download.totalBytesChanged.connect(self.update_widget)
+        self._download.receivedBytesChanged.connect(self.update_widget)
+
+        self._download.stateChanged.connect(self.update_widget)
+
+        self.update_widget()
+
+    @Slot()
+    def _canceled(self):
+        state = self._download.state()
+        if state == QWebEngineDownloadRequest.DownloadInProgress:
+            self._download.cancel()
+        else:
+            self.remove_clicked.emit(self)
+
+    def update_widget(self):
+        total_bytes_v = self._download.totalBytes()
+        total_bytes = with_unit(total_bytes_v)
+        received_bytes_v = self._download.receivedBytes()
+        received_bytes = with_unit(received_bytes_v)
+        elapsed = self._time_added.elapsed()
+        bytes_per_second_v = received_bytes_v / elapsed * 1000 if elapsed else 0
+        bytes_per_second = with_unit(bytes_per_second_v)
+
+        state = self._download.state()
+
+        progress_bar = self._ui.m_progressBar
+        if state == QWebEngineDownloadRequest.DownloadInProgress:
+            if total_bytes_v > 0:
+                progress = round(100 * received_bytes_v / total_bytes_v)
+                progress_bar.setValue(progress)
+                progress_bar.setDisabled(False)
+                fmt = f"%p% - {received_bytes} of {total_bytes} downloaded - {bytes_per_second}/s"
+                progress_bar.setFormat(fmt)
+            else:
+                progress_bar.setValue(0)
+                progress_bar.setDisabled(False)
+                fmt = f"unknown size - {received_bytes} downloaded - {bytes_per_second}/s"
+                progress_bar.setFormat(fmt)
+        elif state == QWebEngineDownloadRequest.DownloadCompleted:
+            progress_bar.setValue(100)
+            progress_bar.setDisabled(True)
+            fmt = f"completed - {received_bytes} downloaded - {bytes_per_second}/s"
+            progress_bar.setFormat(fmt)
+        elif state == QWebEngineDownloadRequest.DownloadCancelled:
+            progress_bar.setValue(0)
+            progress_bar.setDisabled(True)
+            fmt = f"cancelled - {received_bytes} downloaded - {bytes_per_second}/s"
+            progress_bar.setFormat(fmt)
+        elif state == QWebEngineDownloadRequest.DownloadInterrupted:
+            progress_bar.setValue(0)
+            progress_bar.setDisabled(True)
+            fmt = "interrupted: " + self._download.interruptReasonString()
+            progress_bar.setFormat(fmt)
+
+        if state == QWebEngineDownloadRequest.DownloadInProgress:
+            self._ui.m_cancelButton.setIcon(self._cancel_icon)
+            self._ui.m_cancelButton.setToolTip("Stop downloading")
+        else:
+            self._ui.m_cancelButton.setIcon(self._remove_icon)
+            self._ui.m_cancelButton.setToolTip("Remove from list")