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Chrome extension download file from url
StringDelta optional state The change in stateif any. BooleanDelta optional canResume The change in canResumeif any. BooleanDelta optional paused The change in pausedif any.
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.
Extra HTTP headers to send with the request if the URL uses the HTTP[s] protocol. Each header is represented as a dictionary containing the keys name and chrome extension download file from url value or binaryValuerestricted to those allowed by XMLHttpRequest. Called with the id of the new DownloadItem.
If more than one extension overrides the filename, then the last extension installed whose listener passes a suggestion object to suggest wins.
Does not change once it is set. The localized name of the extension that initiated this download if this download was initiated by an extension. May change if the extension changes its name or if the user changes their locale. If the URL uses the HTTP[S] protocol, then the request chrome extension download file from url include all cookies currently set for its hostname. If both filename and saveAs are specified, then the Save As dialog will be displayed, pre-populated with the specified filename.
Also, search may be called as often as necessary, but will not check for file existence any more frequently than once every 10 seconds. The identifier for the extension that initiated this download if this download was initiated by an extension.
The change in existsif any. The suggest parameter should be a function that looks chrome extension download file from url this:
To specify descending order, prefix with a hyphen: The id of the DownloadItem to query. The absolute URL that this download initiated from, before any redirects. Indicates whether the download is progressing, interrupted, or complete.
Limits results to DownloadItem whose url matches the given regular expression. Limits results to DownloadItem whose finalUrl matches the given regular expression. The maximum number of matching DownloadItem returned. Set to 0 in order to return all matching DownloadItem. See search for how to page through results. Set elements of this array to DownloadItem properties in order to sort search results.
The identifier for the DownloadItem. Initiate dragging the downloaded file to another application. Call in a javascript ondragstart handler. 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.
Parameters function callback The callback parameter should be a function that looks like this: StringDelta optional url The change in urlif any. StringDelta optional finalUrl Since Chrome The change in finalUrlif any.
Prompt the user to accept a dangerous download. Does not automatically accept dangerous downloads. If the download is accepted, then an onChanged event will fire, otherwise nothing will happen. When all the data is fetched into a temporary file and either the download is not dangerous or the danger has been accepted, then the temporary file chrome extension download file from url renamed to the target filename, the state changes to 'complete', and onChanged fires.
InterruptReason optional error Why the download was interrupted. StringDelta properties string optional previous string chrome extension download file from url current. DoubleDelta Since Chrome BooleanDelta properties boolean optional previous boolean optional current. Parameters object options What to download and how. FilenameConflictAction optional conflictAction The action to take if filename already exists.
Absolute paths, empty paths, and paths containing back-references ". Use a file-chooser to allow the user to select a filename regardless of whether filename is chrome extension download file from url or already exists.
StringDelta optional filename The change in filenameif any. StringDelta optional danger The change in dangerif any. StringDelta optional mime The change in mimeif any.
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 truethen suggest will be called automatically.
In order to avoid confusion regarding which extension will win, users should chrome extension download file from url 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, chrome extension download file from url filename to download instead.
Limits results to DownloadItem that started before the given ms since the epoch. Limits results to DownloadItem that started after the given ms since the epoch. Limits results to DownloadItem that ended before the given ms since the epoch. Limits results to DownloadItem that ended after the given ms since the epoch. Limits results to DownloadItem whose totalBytes is greater than the given integer. Limits results to DownloadItem whose totalBytes is less than the given integer. Limits results to DownloadItem whose filename matches the given regular expression.
DownloadItem properties integer id An identifier that is persistent across browser sessions. DangerType danger Indication of whether this download is thought to be safe or known to be suspicious.
This event fires with the DownloadItem object when a download begins. Fires with the downloadId when a download is erased from history. The id of the DownloadItem that was erased.
Indication of whether this download is thought to be safe or known to be chrome extension download file from url. The time when the download chrome extension download file from url in ISO format. May chrome extension download file from url passed directly to the Date constructor: The time when the download ended in ISO format.
StringDelta optional startTime The change in startTimeif any. StringDelta optional endTime The change in endTimeif any.
Properties of each object string name Name of the HTTP header. Parameters object query array of string optional query This array of search terms limits results to DownloadItem whose filename or url or finalUrl contain all of the search terms that do not begin with a dash '-' and none of the search terms that do begin with a dash. DangerType optional danger Indication of whether this download is thought to be safe or known to be suspicious.
State optional state Indicates whether the download is progressing, interrupted, or complete. InterruptReason optional error Why a download was chrome extension download file from url. Parameters integer downloadId The id of the download chrome extension download file from url pause. If you specify the callback parameter, it should be a function that looks like this: Parameters integer downloadId The id of the download to resume. Parameters integer downloadId The id of the download to cancel.
The change in stateif any. The change in canResumeif any. The change in pausedif any. Chrome extension download file from url change in errorif any. The change in totalBytesif any. The change in fileSizeif any.
The suggest parameter should be a function that looks like this:. The DownloadItem 's new target DownloadItem. The action to take if filename already exists. DangerType Enum "file""url""content""uncommon""host""unwanted""safe"or "accepted" file The download's filename is suspicious.
The id of the download to resume. Called when the resume request is completed. The id of the download to cancel. Called when the cancel request is completed. The identifier for the download. A URL to an image that represents the download. The identifier for the downloaded file. Called when the danger prompt dialog closes. The change in chrome extension download file from urlif any.
The URL to download. The HTTP method to use if the URL uses the HTTP[S] protocol. Properties of each object string. Name of the HTTP header. Value of the HTTP header. Why a download was interrupted. Whether the downloaded file exists. The id of the download to pause. Called when the pause request is completed.
If you specify the callback parameter, it should be a function that looks like this:. Set query to the empty object to get all DownloadItem. To get a specific DownloadItemset only the id field. To page through a large number of items, set orderBy: This array of search terms limits results to DownloadItem whose filename or url or finalUrl contain all of the search terms that do not begin with a dash '-' and none of the search terms that do begin with a dash.
Call search in order to trigger the check for file existence. When the existence check completes, if the file has been deleted, then an onChanged event will fire. Note chrome extension download file from url search does not wait for the existence check to finish before returning, so results from search may not accurately reflect the file system.
The change in filenameif any. The change in dangerif any. The change in mimeif any. The change in startTimeif any. The change in endTimeif any.
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. A file path relative to the Downloads directory to contain the downloaded file, possibly containing subdirectories.
An onChanged event will fire when the item is opened for the first time. Erase matching DownloadItem from history without deleting the downloaded file. An onErased event will fire for each DownloadItem that matches querythen callback will be called. Remove the downloaded file if it exists and the DownloadItem is complete; otherwise return an error through runtime.
StringDelta optional error The change in errorif any. DoubleDelta optional totalBytes The change in totalBytesif any. DoubleDelta optional fileSize The change in fileSizeif any. BooleanDelta optional exists The change in existsif any. Google Terms of Service Privacy Policy Report a content bug. An identifier that is persistent across browser sessions. The file's MIME type. What to download and how.
Parameters integer downloadId The identifier for the download. The callback parameter should be a function that looks like this: Chrome extension download file from url integer downloadId Chrome extension download file from url identifier for the downloaded file. Show the downloaded file in its folder in a file manager. Show the default Downloads folder in a file manager. Parameters integer downloadId function optional callback If you specify the callback parameter, it should be a function that looks like this: Parameters integer downloadId The identifier for the DownloadItem.
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. The id of the DownloadItem that changed. During the filename determination process, extensions will chrome extension download file from url given the opportunity to override the target DownloadItem.
You must declare the "downloads" permission in the extension manifest to use this API. You can find simple examples of using the chrome. For other examples and for help in viewing the source code, see Samples. The absolute URL that this download is being made from, after all redirects. False if this download is recorded in the history, true if it is not recorded.
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 a file icon cannot be determined, runtime. The size of the returned icon. The default and largest size for the icon is 32x32 pixels. The only supported sizes are 16 and It is an error to specify any other size. Open the downloaded file now if the DownloadItem is complete; otherwise returns an error through runtime.
Whether the downloaded file still exists. This information may be out of date because Chrome does not automatically watch for file removal.
Number of bytes in the whole file post-decompression, or -1 if unknown. The callback parameter should be a function that looks like this:. If the request was successful the download is in a paused state. The request will fail if the download is not active. Resume a paused download. If the request was successful the download is in progress and unpaused. When callback is run, the download is cancelled, completed, interrupted or doesn't exist anymore.
Estimated time when the download will complete in ISO format. True if the download has stopped reading data from the host, but kept the connection open. True if the download is in progress and paused, or else if it is interrupted and can be resumed starting from where it was interrupted. Why the download was interrupted. Number of bytes received so far from the host, without considering file compression. Number of bytes in the whole file, without considering file compression, or -1 if unknown.
Icon retrieval is done by querying the chrome extension download file from url 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, chrome extension download file from url file types and visual theme.