X-Git-Url: https://gitweb.stoutner.com/?p=PrivacyBrowserAndroid.git;a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2Fasynctasks%2FSaveWebpageImage.java;h=65463f35ed1b4521d67ff76d14ff13067a985a2b;hp=aeb92988e93f52aedfe2b573cc15d77c3922ace6;hb=1003c7842a01f338c8aaf9d4f07216111f294202;hpb=4196bafc4069857b554ac95addcae92fcabae901 diff --git a/app/src/main/java/com/stoutner/privacybrowser/asynctasks/SaveWebpageImage.java b/app/src/main/java/com/stoutner/privacybrowser/asynctasks/SaveWebpageImage.java index aeb92988..65463f35 100644 --- a/app/src/main/java/com/stoutner/privacybrowser/asynctasks/SaveWebpageImage.java +++ b/app/src/main/java/com/stoutner/privacybrowser/asynctasks/SaveWebpageImage.java @@ -1,5 +1,5 @@ /* - * Copyright © 2019 Soren Stoutner . + * Copyright © 2019-2020 Soren Stoutner . * * This file is part of Privacy Browser . * @@ -20,44 +20,57 @@ package com.stoutner.privacybrowser.asynctasks; import android.app.Activity; +import android.content.ContentResolver; +import android.content.Context; +import android.content.Intent; import android.graphics.Bitmap; import android.graphics.Canvas; +import android.net.Uri; import android.os.AsyncTask; +import android.os.Build; +import android.view.View; + +import androidx.core.content.FileProvider; import com.google.android.material.snackbar.Snackbar; import com.stoutner.privacybrowser.R; import com.stoutner.privacybrowser.views.NestedScrollWebView; -import com.stoutner.privacybrowser.views.NoSwipeViewPager; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileOutputStream; import java.lang.ref.WeakReference; -public class SaveWebpageImage extends AsyncTask { - // Define the weak references. +public class SaveWebpageImage extends AsyncTask { + // Declare the weak references. + private WeakReference contextWeakReference; private WeakReference activityWeakReference; private WeakReference nestedScrollWebViewWeakReference; - // Define a success string constant. + // Declare the class constants. private final String SUCCESS = "Success"; - // Define the saving image snackbar and the webpage bitmap. + // Declare the class variables. private Snackbar savingImageSnackbar; private Bitmap webpageBitmap; + private String filePathString; // The public constructor. - public SaveWebpageImage(Activity activity, NestedScrollWebView nestedScrollWebView) { + public SaveWebpageImage(Context context, Activity activity, String filePathString, NestedScrollWebView nestedScrollWebView) { // Populate the weak references. + contextWeakReference = new WeakReference<>(context); activityWeakReference = new WeakReference<>(activity); nestedScrollWebViewWeakReference = new WeakReference<>(nestedScrollWebView); + + // Populate the class variables. + this.filePathString = filePathString; } // `onPreExecute()` operates on the UI thread. @Override protected void onPreExecute() { - // Get a handle for the activity and the nested scroll WebView. + // Get handles for the activity and the nested scroll WebView. Activity activity = activityWeakReference.get(); NestedScrollWebView nestedScrollWebView = nestedScrollWebViewWeakReference.get(); @@ -67,7 +80,7 @@ public class SaveWebpageImage extends AsyncTask { } // Create a saving image snackbar. - savingImageSnackbar = Snackbar.make(nestedScrollWebView, R.string.saving_image, Snackbar.LENGTH_INDEFINITE); + savingImageSnackbar = Snackbar.make(nestedScrollWebView, activity.getString(R.string.processing_image) + " " + filePathString, Snackbar.LENGTH_INDEFINITE); // Display the saving image snackbar. savingImageSnackbar.show(); @@ -83,7 +96,7 @@ public class SaveWebpageImage extends AsyncTask { } @Override - protected String doInBackground(String... fileName) { + protected String doInBackground(Void... Void) { // Get a handle for the activity. Activity activity = activityWeakReference.get(); @@ -95,11 +108,11 @@ public class SaveWebpageImage extends AsyncTask { // Create a webpage PNG byte array output stream. ByteArrayOutputStream webpageByteArrayOutputStream = new ByteArrayOutputStream(); - // Convert the bitmap to a PNG. `0` is for lossless compression (the only option for a PNG). This compression takes a long time. + // Convert the bitmap to a PNG. `0` is for lossless compression (the only option for a PNG). This compression takes a long time. Once the minimum API >= 30 this could be replaced with WEBP_LOSSLESS. webpageBitmap.compress(Bitmap.CompressFormat.PNG, 0, webpageByteArrayOutputStream); // Get a file for the image. - File imageFile = new File(fileName[0]); + File imageFile = new File(filePathString); // Delete the current file if it exists. if (imageFile.exists()) { @@ -116,6 +129,15 @@ public class SaveWebpageImage extends AsyncTask { // Write the webpage image to the image file. webpageByteArrayOutputStream.writeTo(imageFileOutputStream); + + // Create a media scanner intent, which adds items like pictures to Android's recent file list. + Intent mediaScannerIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE); + + // Add the URI to the media scanner intent. + mediaScannerIntent.setData(Uri.fromFile(imageFile)); + + // Make it so. + activity.sendBroadcast(mediaScannerIntent); } catch (Exception exception) { // Store the error in the file creation disposition string. fileCreationDisposition = exception.toString(); @@ -128,25 +150,60 @@ public class SaveWebpageImage extends AsyncTask { // `onPostExecute()` operates on the UI thread. @Override protected void onPostExecute(String fileCreationDisposition) { - // Get a handle for the activity. + // Get handles for the weak references. + Context context = contextWeakReference.get(); Activity activity = activityWeakReference.get(); + NestedScrollWebView nestedScrollWebView = nestedScrollWebViewWeakReference.get(); // Abort if the activity is gone. if ((activity == null) || activity.isFinishing()) { return; } - // Get a handle for the no swipe view pager. - NoSwipeViewPager noSwipeViewPager = activity.findViewById(R.id.webviewpager); - // Dismiss the saving image snackbar. savingImageSnackbar.dismiss(); // Display a file creation disposition snackbar. if (fileCreationDisposition.equals(SUCCESS)) { - Snackbar.make(noSwipeViewPager, R.string.image_saved, Snackbar.LENGTH_SHORT).show(); + // Create a file saved snackbar. + Snackbar imageSavedSnackbar = Snackbar.make(nestedScrollWebView, activity.getString(R.string.file_saved) + " " + filePathString, Snackbar.LENGTH_SHORT); + + // Add an open action. + imageSavedSnackbar.setAction(R.string.open, (View view) -> { + // Get a file for the file path string. + File file = new File(filePathString); + + // Declare a file URI variable. + Uri fileUri; + + // Get the URI for the file according to the Android version. + if (Build.VERSION.SDK_INT >= 24) { // Use a file provider. + fileUri = FileProvider.getUriForFile(context, activity.getString(R.string.file_provider), file); + } else { // Get the raw file path URI. + fileUri = Uri.fromFile(file); + } + + // Get a handle for the content resolver. + ContentResolver contentResolver = context.getContentResolver(); + + // Create an open intent with `ACTION_VIEW`. + Intent openIntent = new Intent(Intent.ACTION_VIEW); + + // Autodetect the MIME type. + openIntent.setDataAndType(fileUri, contentResolver.getType(fileUri)); + + // Allow the app to read the file URI. + openIntent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); + + // Show the chooser. + activity.startActivity(Intent.createChooser(openIntent, context.getString(R.string.open))); + }); + + // Show the image saved snackbar. + imageSavedSnackbar.show(); } else { - Snackbar.make(noSwipeViewPager, activity.getString(R.string.error_saving_image) + " " + fileCreationDisposition, Snackbar.LENGTH_INDEFINITE).show(); + // Display the file saving error. + Snackbar.make(nestedScrollWebView, activity.getString(R.string.error_saving_file) + " " + fileCreationDisposition, Snackbar.LENGTH_INDEFINITE).show(); } } } \ No newline at end of file