If both filename and saveAs are specified, then the Save As dialog will be displayed, pre-populated with the specified filename. If the download started successfully, callback will be called with the new DownloadItem 's downloadId.
The error strings are not guaranteed to remain backwards compatible between releases. Extensions must not parse it. Erase matching DownloadItem from history without deleting the downloaded file. An onErased event will fire for each DownloadItem that matches query , then callback will be called. Retrieve an icon for the specified download. For new downloads, file icons are available after the 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 operating system or toolkit depending on the 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. The callback parameter looks like: iconURL? Open the downloaded file now if the DownloadItem is complete; otherwise returns an error through runtime. Requires the "downloads. An onChanged event will fire when the item is opened for the first time. Pause the download. If the request was successful the download is in a paused state.
Otherwise runtime. The request will fail if the download is not active. Remove the downloaded file if it exists and the DownloadItem is complete; otherwise return an error through runtime. Resume a paused download. If the request was successful the download is in progress and unpaused.
Find DownloadItem. Set query to the empty object to get all DownloadItem. To get a specific DownloadItem , set only the id field. To page through a large number of items, set orderBy: ['-startTime'] , set limit to the number of items per page, and set startedAfter to the startTime of the last item from the last page. Enable or disable the gray shelf at the bottom of every window associated with the current browser profile. The shelf will be disabled as long as at least one extension has disabled it.
Enabling the shelf while at least one other extension has disabled it will return an error through runtime. When any of a DownloadItem 's properties except bytesReceived and estimatedEndTime changes, this event fires with the downloadId and an object containing the properties that changed. This event fires with the DownloadItem object when a download begins. During the filename determination process, extensions will be given the opportunity to override the target DownloadItem.
Each extension may not register more than one listener for this event. Each listener must call suggest exactly once, either synchronously or asynchronously. If the listener calls suggest asynchronously, then it must return true.
If the listener neither calls suggest synchronously nor returns true , then suggest will be called automatically. The DownloadItem will not complete until all listeners have called suggest.
Listeners may call suggest without any arguments in order to allow the download to use downloadItem. If more than one extension overrides the filename, then the last extension installed whose listener passes a suggestion object to suggest wins. In order to avoid confusion regarding which extension will win, users should not install extensions that may conflict.
If the download is initiated by download and the target filename is known before the MIME type and tentative filename have been determined, pass filename to download instead. The suggest parameter looks like: suggestion?
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