I am using Web activity to launch default Firefox camera from my web app in Firefox OS. Able to launch default Firefox camera and took picture. Got this.result as return value inside pick success.
Now I need to get file path, where image get saved and also image file name.
Tried to parse the this.result.blob, but couldn't find the path or file related parameter .
Below is the code I'm using
var activity = new MozActivity({
// Ask for the "pick" activity
name: "pick",
// Provide the data required by the filters of the activity
data: {
type: "image/jpeg"
}
});
activity.onsuccess = function() {
var picture = this.result;
console.log("A picture has been retrieved");
};
The image file name is not returned, as you can see from the code. If you would need the file name (I can't really think of a very good use case to be honest) you can iterate over the pictures storage in the DeviceStorageAPI and get the last saved file. It's probably the one from the camera (compare blobs to be totally sure).
In your success handler, you will get the file name if you use:
this.result.blob.name
And, you can get the path to the file as:
window.URL.createObjectURL(this.result.blob);
Source
Related
Is there a way for a VSCode extension to access the timeline tab? I searched the docs but I couldn't find anything?
To be more specific, I'd like to watch for changes in certain files and get the diff of that change. I managed to register a listener on file changes, but I also want the actual change. This is what I have so far:
const vscode = require("vscode");
function activate(context) {
const workspacePath = vscode.workspace.workspaceFolders[0];
const watcher = vscode.workspace.createFileSystemWatcher(
new vscode.RelativePattern(workspacePath, "**/package.json")
);
watcher.onDidChange((e) => {
console.log(e); # this only prints the file path, not the content.
}
}
module.exports = {activate};
There is no Timeline API available yet. There is however, a proposed API being discussed for a while (https://github.com/microsoft/vscode/issues/84297), but the last comment is one year old.
But, if you need to detect file changes (not necessarily the file being edited by the user, but any file in the workspace) and compare its content, you need not only the FileSystemWatcher but also some lib that provides you text differencing algorithm, like jsdiff.
Hope this helps
I am using a third party library that requires I pass U8IntList to display an image in a PDF. Their examples has me obtain the image in a File and read the bytes out.
PdfBitmap(file.readAsBytesSync())
This system is great when I am obtaining an image from a server, but I want to display an image stored in local assets.
What I tried to implement was this code..
Future<File> getImageFileFromAssets(String path) async {
final byteData = await rootBundle.load('assets/$path');
final file = File('${(await getTemporaryDirectory()).path}/$path');
await file.writeAsBytes(byteData.buffer.asUint8List(byteData.offsetInBytes, byteData.lengthInBytes));
return file;
}
Which returns the error 'No implementation found for method getTemporaryDirectory on channel plugins.flutter.io/path_provider'.
If anyone knows how to get an Asset Image as File on web it would be greatly appreciated.
Why would you want to write byte data to a file just to read it again? Just directly pass your byte data to the constructor that requires it. This should be changed on both your web and mobile implementations as it will end up being far faster.
final byteData = await rootBundle.load('assets/$path');
PdfBitmap(byteData.buffer.asUint8List())
Google has somewhat recently rolled out the ability to insert audio files from your Drive into Slides with various playback options.
I cannot find any documentation on how to insert a file through Google Scripts but can do so going through the available menu options. I tried using the insertVideo method but got an error
"Exception: The parameters (DriveApp.File) don't match the method signature for SlidesApp.Slide.insertVideo."
Here is a general function I'm trying to get to work (NOOB disclaimer goes here):
function uploadAudioToCurrentSlide(){
var presentation = SlidesApp.getActivePresentation();
var currentSlide = presentation.getSlides()[0];
var audioFile = DriveApp.getFileById('idofaudiofileindrive');
currentSlide.insertVideo(audioFile);
}
Any help is most appreciated!
You want to insert a audio file in Google Drive to Google Slides using Google Apps Script.
Issue and workaround:
I think that the reason of your issue is that the file object is directly used to the method of insertVideo. The argument of insertVideo is the URL and the video object which is not the file object. By this, such error occurs.
In the current stage, when the method of insertVideo is used, the video content is required to be the publicly shared YouTube URL.
And also, it seems that the audio file cannot be directly inserted.
Unfortunately, it seems that these are the current specification. So as a workaround, how about the following flow?
At first, convert the audio file to a video file like MP4. As a test, this can be done at other site. But I'm not sure about the file type of your audio file.
Insert the converted MP4 file on Google Drive using Slides API.
When the Slides API is used, you can insert the video file in Google Drive to the Google Slides. In this sample script, "CreateVideoRequest" of the batchUpdate method of Slides API is used.
Sample script:
Before you run the script, please enable Slides API at Advanced Google services.
function myFunction() {
var fileId = "###"; // Please set the file ID of the converted video file on Google Drive.
var presentation = SlidesApp.getActivePresentation();
var currentSlide = presentation.getSlides()[0];
var resource = {requests: [{createVideo: {source: "DRIVE", id: fileId, elementProperties: {pageObjectId: currentSlide.getObjectId()}}}]};
Slides.Presentations.batchUpdate(resource, presentation.getId());
}
Note:
When you can upload the audio file to YouTube and publicly share it, you can use your script using the URL of the YouTube.
References:
insertVideo(videoUrl)- Advanced Google services
Method: presentations.batchUpdate
CreateVideoRequest
My application allows the user to upload images and send them to the service, which then converts it to another format and sends it back. We are adding support for the SVG file format and I am running into an issue with reading the file from a byte array.
The issue is that when I initialize a MagickImageInfo object with the SVG Stream object, I get this error:
"no decode delegate for this image format '' # error/blob.c/BlobToImage/355"
I played around with it and am able to get past this error if I instead create a MagickImage object and supply it with an instance of MagickReadSettings where I set the Format to SVG explicitly.
The core problem is that the MagickImage code needs a hint as to what kind of file it is when it's an SVG. For other file types, it seems to be able to infer what kind of file it is. However, while I am able to supply the MagickImage class with what format the file is, the MagickImageInfo class doesn't have any parameters that I can give it to hint at the file type.
One possible solution would be to write the file to disk, then have MagickImageInfo class read the file from disk, but I really don't want to do this as it adds complexity to the service and makes it depend on disk write access.
Relevant code:
Working code:
var readSettings = new MagickReadSettings() { Format = MagickFormat.Svg };
using (MagickImage image = new MagickImage(stream, readSettings))
{
image.Write("C:\test"); // Actual code doesn't write to disk
}
Not working code:
MagickImageInfo info = new MagickImageInfo(stream);
It appears that you found a missing feature. I found your post here and added an extra overload for the MagickImageInfo constructor. The following will be available in Magick.NET 7.0.3.9 and higher:
var readSettings = new MagickReadSettings() { Format = MagickFormat.Svg };
MagickImageInfo info = new MagickImageInfo(stream, readSettings);
Feel free to open an issue next time here: https://github.com/dlemstra/Magick.NET or here: https://magick.codeplex.com/discussions
I am developing a phone gap application and we've recently added support for the windows 8.1 platform. The application downloads/creates files which are saved to the device using the Cordova FileSystem API.
I have successfully saved a file to the device using a URL which looks like this
ms-appdata:///local/file.png
I have checked on my PC and the file is viewable inside the LocalState folder under the app's root folder. However, when I try to open this file using inAppBrowser nothing happens; no error message is being reported and none of the inAppBrowser default events fire.
function empty() { alert('here'); } //never fires
var absoluteUrl = "ms-appdata:///local/file.png";
cordova.InAppBrowser.open(absoluteURL, "_blank", "location=no", { loadstart: empty, loadstop: empty, loaderror: empty });
I have verified that the url is valid by calling the following built-in javascript on the url
Windows.Storage.StorageFile.getFileFromApplicationUriAsync(uri).done(function (file) {
debugger; //the file object contains the correct path to the file; C:\...etc.
});
Also, adding the url as the src for an img tag works as expected.
I have also tried attaching the inAppBrowser handlers using addEventListener("loadstart") etc. but none of them are firing either. However, when I try to open "http://www.google.com" the events do fire and the inAppBrowser pops up on the screen.
After inspecting the dom I can see that the inAppBrowser element has been added, but it doesn't appear to have a source attribute set
<div class="inAppBrowserWrap">
<x-ms-webview style="border-width: 0px; width: 100%; height: 100%;"></x-ms-webview>
</div>
I have looked at other questions such as this one but to no avail. I have verified that
a) InAppBrowser is installed
b) deviceReady has fired
I have also tried changing the target to "_self" (same issue) and "_system" (popup saying you need a new app to open a file of type msappdata://) and I'm running out of ideas. Has anybody come across similar issues?
I had a similar problem. My cordova app downloads a file and then opens it with native browser (so that images, PDF files and so on are properly handled).
In the end I had to modify InAppBrowserProxy.js class (part of InAppBrowser plugin for Windows platform).
This is the code that opens the file (plain JavaScript):
// This value comes from somewhere, I write it here as an example
var path = 'ms-appdata:///local//myfile.jpg';
// Open file in InAppBrowser
window.open(path, '_system', 'location=no');
Then, I updated InAppBrowserProxy.js file (under platforms\windows\www\plugins\cordova-plugin-inappbrowser\src\windows). I replaced this code fragment:
if (target === "_system") {
url = new Windows.Foundation.Uri(strUrl);
Windows.System.Launcher.launchUriAsync(url);
}
By this:
if (target === "_system") {
if (strUrl.indexOf('ms-appdata:///local//') == 0) {
var fileName = decodeURI(strUrl.substr(String(strUrl).lastIndexOf("/") + 1));
var localFolder = Windows.Storage.ApplicationData.current.localFolder;
localFolder.getFileAsync(fileName).then(function (file) {
Windows.System.Launcher.launchFileAsync(file);
}, function (error) {
console.log("Error getting file '" + fileName + "': " + error);
});
} else {
url = new Windows.Foundation.Uri(strUrl);
Windows.System.Launcher.launchUriAsync(url);
}
}
This is a very ad-hoc hack, but it did the trick for me, and it could be improved, extended, and even standarized.
Anyway, there may be other ways to achieve this, it's just that this worked for me...
After more searching, it seems that the x-ms-webview, which is the underlying component used by PhoneGap for Windows only supports loading HTML content. This Microsoft blog post on the web view control states that
UnviewableContentIdentified – Is fired when a user navigates to
content other than a webpage. The WebView control is only capable of
displaying HTML content. It doesn’t support displaying standalone
images, downloading files, viewing Office documents, etc. This event
is fired so the app can decide how to handle the situation.
This article suggests looking at the Windows.Data.Pdf namespace for providing in-app support for reading PDFs.