The HTMLInputElement.webkitdirectory is a property that reflects the webkitdirectory HTML attribute and indicates that the <input> element should let the user select directories instead of files. When a directory is selected, the directory and its entire hierarchy of contents are included in the set of selected items. The selected file system entries can be obtained using the webkitEntries property.
Note: This property is called webkitEntries in the specification due to its origins as a Google Chrome-specific API. It's likely to be renamed someday.
A Boolean; true if the <input> element should allow picking only directories or false if only files should be selectable.
After the user makes a selection, each File object in files has its File.webkitRelativePath property set to the relative path within the selected directory at which the file is located. For example, consider this file system:
- PhotoAlbums
- Birthdays
- Jamie's 1st birthday
- PIC1000.jpg
- PIC1004.jpg
- PIC1044.jpg
- Don's 40th birthday
- PIC2343.jpg
- PIC2344.jpg
- PIC2355.jpg
- PIC2356.jpg
- Vacations
- Mars
- PIC5533.jpg
- PIC5534.jpg
- PIC5556.jpg
- PIC5684.jpg
- PIC5712.jpg
If the user chooses PhotoAlbums, then the list reported by files will contain File objects for every file listed above—but not the directories. The entry for PIC2343.jpg will have a webkitRelativePath of PhotoAlbums/Birthdays/Don's 40th birthday/PIC2343.jpg. This makes it possible to know the hierarchy even though the FileList is flat.
Note: The behavior of webkitRelativePath is different in Chromium < 72. See this bug for further details.
In this example, a directory picker is presented which lets the user choose one or more directories. When the change event occurs, a list of all files contained within the selected directory hierarchies is generated and displayed.
<input type="file" id="filepicker" name="fileList" webkitdirectory multiple />
<ul id="listing"></ul>
document.getElementById("filepicker").addEventListener(
"change",
(event) => {
let output = document.getElementById("listing");
for (const file of event.target.files) {
let item = document.createElement("li");
item.textContent = file.webkitRelativePath;
output.appendChild(item);
}
},
false,
);