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Added Thumbnail and Meta-information generator to Local and Dropbox

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This commit is contained in:
Amir Abbas
2017-01-16 15:20:44 +03:30
parent f2d54c7f92
commit d2cf657ab2
10 changed files with 768 additions and 18 deletions
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Sources/DropboxFileProvider.swift
+49 -10
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@@ -340,32 +340,43 @@ extension DropboxFileProvider: ExtendedFileProvider {
switch (path as NSString).pathExtension.lowercased() {
case "jpg", "jpeg", "gif", "bmp", "png", "tif", "tiff":
return true
/*case "doc", "docx", "docm", "xls", "xlsx", "xlsm":
case "doc", "docx", "docm", "xls", "xlsx", "xlsm":
return true
case "ppt", "pps", "ppsx", "ppsm", "pptx", "pptm":
return true
case "rtf":
return true*/
return true
default:
return false
}
}
public func propertiesOfFileSupported(path: String) -> Bool {
return false
let fileExt = (path as NSString).pathExtension.lowercased()
switch fileExt {
case "jpg", "jpeg", "bmp", "gif", "png", "tif", "tiff":
return true
/*case "mp3", "aac", "m4a":
return true*/
case "mp4", "mpg", "3gp", "mov", "avi":
return true
default:
return false
}
}
public func thumbnailOfFile(path: String, dimension: CGSize, completionHandler: @escaping ((_ image: ImageClass?, _ error: Error?) -> Void)) {
/// Default value for dimension is 64x64, according to Dropbox documentation
public func thumbnailOfFile(path: String, dimension: CGSize?, completionHandler: @escaping ((_ image: ImageClass?, _ error: Error?) -> Void)) {
let url: URL
switch (path as NSString).pathExtension.lowercased() {
case "jpg", "jpeg", "gif", "bmp", "png", "tif", "tiff":
url = URL(string: "https://content.dropboxapi.com/2/files/get_thumbnail")!
/*case "doc", "docx", "docm", "xls", "xlsx", "xlsm":
case "doc", "docx", "docm", "xls", "xlsx", "xlsm":
fallthrough
case "ppt", "pps", "ppsx", "ppsm", "pptx", "pptm":
fallthrough
case "rtf":
url = NSURL(string: "https://content.dropboxapi.com/2/files/get_preview")!*/
url = URL(string: "https://content.dropboxapi.com/2/files/get_preview")!
default:
return
}
@@ -373,7 +384,9 @@ extension DropboxFileProvider: ExtendedFileProvider {
request.setValue("Bearer \(credential?.password ?? "")", forHTTPHeaderField: "Authorization")
var requestDictionary = ["path": path as NSString]
requestDictionary["format"] = "jpeg" as NSString
requestDictionary["size"] = "w\(Int(dimension.width))h\(Int(dimension.height))" as NSString
if let dimension = dimension {
requestDictionary["size"] = "w\(Int(dimension.width))h\(Int(dimension.height))" as NSString
}
request.setValue(dictionaryToJSON(requestDictionary), forHTTPHeaderField: "Dropbox-API-Arg")
let task = self.session.dataTask(with: request, completionHandler: { (data, response, error) in
var image: ImageClass? = nil
@@ -383,7 +396,13 @@ extension DropboxFileProvider: ExtendedFileProvider {
}
}
if let data = data {
image = ImageClass(data: data)
if DropboxFileProvider.dataIsPDF(data) {
image = DropboxFileProvider.convertToImage(pdfData: data)
} else if let contentType = (response as? HTTPURLResponse)?.allHeaderFields["Content-Type"] as? String, contentType.contains("text/html") {
// TODO: Implement converting html returned type of get_preview to image
} else {
image = ImageClass(data: data)
}
}
completionHandler(image, error)
})
@@ -391,7 +410,27 @@ extension DropboxFileProvider: ExtendedFileProvider {
}
public func propertiesOfFile(path: String, completionHandler: @escaping ((_ propertiesDictionary: [String : Any], _ keys: [String], _ error: Error?) -> Void)) {
NotImplemented()
let url = URL(string: "https://api.dropboxapi.com/2/files/get_metadata")!
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("Bearer \(credential?.password ?? "")", forHTTPHeaderField: "Authorization")
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
let requestDictionary = ["path": correctPath(path)! as NSString, "include_media_info": NSNumber(value: true)]
request.httpBody = dictionaryToJSON(requestDictionary)?.data(using: .utf8)
let task = session.dataTask(with: request, completionHandler: { (data, response, error) in
var dbError: FileProviderDropboxError?
var dic = [String: Any]()
var keys = [String]()
if let response = response as? HTTPURLResponse {
let code = FileProviderHTTPErrorCode(rawValue: response.statusCode)
dbError = code != nil ? FileProviderDropboxError(code: code!, path: path, errorDescription: String(data: data ?? Data(), encoding: .utf8)) : nil
if let data = data, let jsonStr = String(data: data, encoding: .utf8), let json = jsonToDictionary(jsonStr), let properties = json["media_info"] as? [String: Any] {
(dic, keys) = self.mapMediaInfo(properties)
}
}
completionHandler(dic, keys, dbError ?? error)
})
task.resume()
}
}