Extend ShareHelper#share to share a screenshot as a stream

ui/android/java/src/org/chromium/ui/base/SelectFileDialog.java

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.ui.base;
 
 import android.annotation.TargetApi;
 import android.app.Activity;
 import android.content.ClipData;
 import android.content.ContentResolver;
 import android.content.Context;
 import android.content.Intent;
 import android.net.Uri;
 import android.os.AsyncTask;
 import android.os.Build;
-import android.os.Environment;
 import android.provider.MediaStore;
 import android.text.TextUtils;
 import android.util.Log;
 
 import org.chromium.base.CalledByNative;
 import org.chromium.base.ContentUriUtils;
 import org.chromium.base.JNINamespace;
 import org.chromium.ui.R;
+import org.chromium.ui.UiUtils;
 
 import java.io.File;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 
 /**
  * A dialog that is triggered from a file input field that allows a user to select a file based on
  * a set of accepted file types. The path of the selected file is passed to the native dialog.
  */
 @JNINamespace("ui")
 class SelectFileDialog implements WindowAndroid.IntentCallback {
     private static final String TAG = "SelectFileDialog";
     private static final String IMAGE_TYPE = "image/";
     private static final String VIDEO_TYPE = "video/";
     private static final String AUDIO_TYPE = "audio/";
     private static final String ALL_IMAGE_TYPES = IMAGE_TYPE + "*";
     private static final String ALL_VIDEO_TYPES = VIDEO_TYPE + "*";
     private static final String ALL_AUDIO_TYPES = AUDIO_TYPE + "*";
     private static final String ANY_TYPES = "*/*";
-    private static final String CAPTURE_IMAGE_DIRECTORY = "browser-photos";
-    // Keep this variable in sync with the value defined in file_paths.xml.
-    private static final String IMAGE_FILE_PATH = "images";
 
     private final long mNativeSelectFileDialog;
     private List<String> mFileTypes;
     private boolean mCapture;
     private Uri mCameraOutputUri;
 
     private SelectFileDialog(long nativeSelectFileDialog) {
         mNativeSelectFileDialog = nativeSelectFileDialog;
     }
 
@@ skipping 10 matching lines @@
             String[] fileTypes, boolean capture, boolean multiple, WindowAndroid window) {
         mFileTypes = new ArrayList<String>(Arrays.asList(fileTypes));
         mCapture = capture;
 
         Intent chooser = new Intent(Intent.ACTION_CHOOSER);
         Intent camera = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
         Context context = window.getApplicationContext();
         camera.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION
                 | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
         try {
-            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
-                mCameraOutputUri = ContentUriUtils.getContentUriFromFile(
-                        context, getFileForImageCapture(context));
-            } else {
-                mCameraOutputUri = Uri.fromFile(getFileForImageCapture(context));
-            }
+            mCameraOutputUri =
+                    UiUtils.getUriForImageCaptureFile(context, getFileForImageCapture(context));
         } catch (IOException e) {
             Log.e(TAG, "Cannot retrieve content uri from file", e);
         }
 
         if (mCameraOutputUri == null) {
             onFileNotSelected();
             return;
         }
 
         camera.putExtra(MediaStore.EXTRA_OUTPUT, mCameraOutputUri);
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
-            camera.setClipData(
-                    ClipData.newUri(context.getContentResolver(),
-                    IMAGE_FILE_PATH, mCameraOutputUri));
+            camera.setClipData(ClipData.newUri(
+                    context.getContentResolver(), UiUtils.IMAGE_FILE_PATH, mCameraOutputUri));
         }
         Intent camcorder = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
         Intent soundRecorder = new Intent(
                 MediaStore.Audio.Media.RECORD_SOUND_ACTION);
 
         // Quick check - if the |capture| parameter is set and |fileTypes| has the appropriate MIME
         // type, we should just launch the appropriate intent. Otherwise build up a chooser based on
         // the accept type and then display that to the user.
         if (captureCamera()) {
             if (window.showIntent(camera, this, R.string.low_memory_error)) return;
@@ skipping 46 matching lines @@
 
     /**
      * Get a file for the image capture operation. For devices with JB MR2 or
      * latter android versions, the file is put under IMAGE_FILE_PATH directory.
      * For ICS devices, the file is put under CAPTURE_IMAGE_DIRECTORY.
      *
      * @param context The application context.
      * @return file path for the captured image to be stored.
      */
     private File getFileForImageCapture(Context context) throws IOException {
-        File path;
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
-            path = new File(context.getFilesDir(), IMAGE_FILE_PATH);
-            if (!path.exists() && !path.mkdir()) {
-                throw new IOException("Folder cannot be created.");
-            }
-        } else {
-            File externalDataDir = Environment.getExternalStoragePublicDirectory(
-                    Environment.DIRECTORY_DCIM);
-            path = new File(externalDataDir.getAbsolutePath()
-                    + File.separator + CAPTURE_IMAGE_DIRECTORY);
-            if (!path.exists() && !path.mkdirs()) {
-                path = externalDataDir;
-            }
-        }
-        File photoFile = File.createTempFile(
-                String.valueOf(System.currentTimeMillis()), ".jpg", path);
+        File photoFile = File.createTempFile(String.valueOf(System.currentTimeMillis()), ".jpg",
+                UiUtils.getDirectoryForImageCapture(context));
         return photoFile;
     }
 
     /**
      * Callback method to handle the intent results and pass on the path to the native
      * SelectFileDialog.
      * @param window The window that has access to the application activity.
      * @param resultCode The result code whether the intent returned successfully.
      * @param contentResolver The content resolver used to extract the path of the selected file.
      * @param results The results of the requested intent.
@@ skipping 169 matching lines @@
     private static SelectFileDialog create(long nativeSelectFileDialog) {
         return new SelectFileDialog(nativeSelectFileDialog);
     }
 
     private native void nativeOnFileSelected(long nativeSelectFileDialogImpl,
             String filePath, String displayName);
     private native void nativeOnMultipleFilesSelected(long nativeSelectFileDialogImpl,
             String[] filePathArray, String[] displayNameArray);
     private native void nativeOnFileNotSelected(long nativeSelectFileDialogImpl);
 }