The getFileIcon
()
function of the downloads
API retrieves an icon for the specified download.
For new downloads, file icons are available after the downloads.onCreated
event has been received. The image returned by this function while a download is in progress may be different from the image returned after the download is complete.
Icon retrieval is done by querying the underlying platform. The icon that is returned will therefore depend on a number of factors including state of the download, platform, registered file types and visual theme.
If a file icon cannot be determined, runtime.lastError
will be set with an appropriate error message.
Syntax
chrome.downloads.getFileIcon( downloadId, // integer options, // optional object function(iconURL) {...} // function )
This API is also available as browser.downloads.getFileIcon()
in a version that returns a promise.
Parameters
downloadId
- An
integer
representing the ID of the download. options
Optional- An options
object
representing preferences for the icon to be retrieved. It can take the following properties: -
size
Optional- An
integer
representing the size of the icon. The returned icon's size will be the provided size squared (in pixels). If omitted, the default size for the icon is 32x32 pixels.
function
- A callback function invoked when the icon has been fetched. The function is passed the following arguments:
-
iconURL
Optional- A
string
representing the absolute URL of the icon.
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Chrome | Edge | Firefox | Firefox for Android | Opera | |
---|---|---|---|---|---|
Basic support | Yes | No | No | No | 33 |
Examples
The following snippet fetches the DownloadItem
for the most recent download. If there is one, it attempts to retrieve the item's icon using getFileIcon()
.
The callback function updateIconUrl()
displays the icon in an <img> element if the call was successful or handles the error case.
function updateIconUrl(iconUrl) { if (chrome.runtime.lastError) { console.error(chrome.runtime.lastError); iconUrl = ""; } var downloadIcon = document.querySelector("#icon"); downloadIcon.setAttribute("src", iconUrl); } function getIconForDownload(downloadItems) { if (downloadItems.length > 0) { latestDownloadId = downloadItems[0].id; chrome.downloads.getFileIcon(latestDownloadId, updateIconUrl); } } chrome.downloads.search({ limit: 1, orderBy: ["-startTime"] }, getIconForDownload);
Example add-ons
This API is based on Chromium's chrome.downloads
API.
Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.
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