1 files changed, 47 insertions, 0 deletions
diff --git a/examples/dialogs/progress_dialog.py b/examples/dialogs/progress_dialog.py
new file mode 100755
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+++ b/examples/dialogs/progress_dialog.py
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+#!/usr/bin/env python
+"""
+Example of a progress bar dialog.
+"""
+import os
+import time
+
+from prompt_toolkit.shortcuts import progress_dialog
+
+
+def worker(set_percentage, log_text):
+    """
+    This worker function is called by `progress_dialog`. It will run in a
+    background thread.
+
+    The `set_percentage` function can be used to update the progress bar, while
+    the `log_text` function can be used to log text in the logging window.
+    """
+    percentage = 0
+    for dirpath, dirnames, filenames in os.walk("../.."):
+        for f in filenames:
+            log_text(f"{dirpath} / {f}\n")
+            set_percentage(percentage + 1)
+            percentage += 2
+            time.sleep(0.1)
+
+            if percentage == 100:
+                break
+        if percentage == 100:
+            break
+
+    # Show 100% for a second, before quitting.
+    set_percentage(100)
+    time.sleep(1)
+
+
+def main():
+    progress_dialog(
+        title="Progress dialog example",
+        text="As an examples, we walk through the filesystem and print "
+        "all directories",
+        run_callback=worker,
+    ).run()
+
+
+if __name__ == "__main__":
+    main()