Controller Refactor

    Bug: 3170671
    First step towards a model/view/control design in Browser
    introduced Controller object
    started separating UI code
    represent state of the app in one place only

Change-Id: Ica387d6bde2dcf1a4993c3db0cce498cf34ff60f

1 files changed, 214 insertions, 0 deletions

diff --git a/src/com/android/browser/UploadHandler.java b/src/com/android/browser/UploadHandler.java
new file mode 100644
index 00000000..d9b387fb
--- /dev/null
+++ b/src/com/android/browser/UploadHandler.java
@@ -0,0 +1,214 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.browser;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Environment;
+import android.provider.MediaStore;
+import android.webkit.ValueCallback;
+
+import java.io.File;
+import java.util.Vector;
+
+/**
+ * Handle the file upload callbacks from WebView here
+ */
+public class UploadHandler {
+
+    /*
+     * The Object used to inform the WebView of the file to upload.
+     */
+    private ValueCallback<Uri> mUploadMessage;
+    private String mCameraFilePath;
+
+    private Controller mController;
+
+    public UploadHandler(Controller controller) {
+        mController = controller;
+    }
+
+    String getFilePath() {
+        return mCameraFilePath;
+    }
+
+    void onResult(int resultCode, Intent intent) {
+        Uri result = intent == null || resultCode != Activity.RESULT_OK ? null
+                : intent.getData();
+
+        // As we ask the camera to save the result of the user taking
+        // a picture, the camera application does not return anything other
+        // than RESULT_OK. So we need to check whether the file we expected
+        // was written to disk in the in the case that we
+        // did not get an intent returned but did get a RESULT_OK. If it was,
+        // we assume that this result has came back from the camera.
+        if (result == null && intent == null && resultCode == Activity.RESULT_OK) {
+            File cameraFile = new File(mCameraFilePath);
+            if (cameraFile.exists()) {
+                result = Uri.fromFile(cameraFile);
+                // Broadcast to the media scanner that we have a new photo
+                // so it will be added into the gallery for the user.
+                mController.getActivity().sendBroadcast(
+                        new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, result));
+            }
+        }
+
+        mUploadMessage.onReceiveValue(result);
+    }
+
+    void openFileChooser(ValueCallback<Uri> uploadMsg, String acceptType) {
+
+        final String imageMimeType = "image/*";
+        final String videoMimeType = "video/*";
+        final String audioMimeType = "audio/*";
+        final String mediaSourceKey = "capture";
+        final String mediaSourceValueCamera = "camera";
+        final String mediaSourceValueFileSystem = "filesystem";
+        final String mediaSourceValueCamcorder = "camcorder";
+        final String mediaSourceValueMicrophone = "microphone";
+
+        // media source can be 'filesystem' or 'camera' or 'camcorder' or 'microphone'.
+        String mediaSource = "";
+
+        // We add the camera intent if there was no accept type (or '*/*' or 'image/*').
+        boolean addCameraIntent = true;
+        // We add the camcorder intent if there was no accept type (or '*/*' or 'video/*').
+        boolean addCamcorderIntent = true;
+
+        if (mUploadMessage != null) {
+            // Already a file picker operation in progress.
+            return;
+        }
+
+        mUploadMessage = uploadMsg;
+
+        // Parse the accept type.
+        String params[] = acceptType.split(";");
+        String mimeType = params[0];
+
+        for (String p : params) {
+            String[] keyValue = p.split("=");
+            if (keyValue.length == 2) {
+                // Process key=value parameters.
+                if (mediaSourceKey.equals(keyValue[0])) {
+                    mediaSource = keyValue[1];
+                }
+            }
+        }
+
+        // This intent will display the standard OPENABLE file picker.
+        Intent i = new Intent(Intent.ACTION_GET_CONTENT);
+        i.addCategory(Intent.CATEGORY_OPENABLE);
+
+        // Create an intent to add to the standard file picker that will
+        // capture an image from the camera. We'll combine this intent with
+        // the standard OPENABLE picker unless the web developer specifically
+        // requested the camera or gallery be opened by passing a parameter
+        // in the accept type.
+        Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
+        File externalDataDir = Environment.getExternalStoragePublicDirectory(
+                Environment.DIRECTORY_DCIM);
+        File cameraDataDir = new File(externalDataDir.getAbsolutePath() +
+                File.separator + "browser-photos");
+        cameraDataDir.mkdirs();
+        mCameraFilePath = cameraDataDir.getAbsolutePath() + File.separator +
+                System.currentTimeMillis() + ".jpg";
+        cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(mCameraFilePath)));
+
+        Intent camcorderIntent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
+
+        Intent soundRecIntent = new Intent(MediaStore.Audio.Media.RECORD_SOUND_ACTION);
+
+        if (mimeType.equals(imageMimeType)) {
+            i.setType(imageMimeType);
+            addCamcorderIntent = false;
+            if (mediaSource.equals(mediaSourceValueCamera)) {
+                // Specified 'image/*' and requested the camera, so go ahead and launch the camera
+                // directly.
+                startActivity(cameraIntent);
+                return;
+            } else if (mediaSource.equals(mediaSourceValueFileSystem)) {
+                // Specified filesytem as the source, so don't want to consider the camera.
+                addCameraIntent = false;
+            }
+        } else if (mimeType.equals(videoMimeType)) {
+            i.setType(videoMimeType);
+            addCameraIntent = false;
+            // The camcorder saves it's own file and returns it to us in the intent, so
+            // we don't need to generate one here.
+            mCameraFilePath = null;
+
+            if (mediaSource.equals(mediaSourceValueCamcorder)) {
+                // Specified 'video/*' and requested the camcorder, so go ahead and launch the
+                // camcorder directly.
+                startActivity(camcorderIntent);
+                return;
+            } else if (mediaSource.equals(mediaSourceValueFileSystem)) {
+                // Specified filesystem as the source, so don't want to consider the camcorder.
+                addCamcorderIntent = false;
+            }
+        } else if (mimeType.equals(audioMimeType)) {
+            i.setType(audioMimeType);
+            addCameraIntent = false;
+            addCamcorderIntent = false;
+            if (mediaSource.equals(mediaSourceValueMicrophone)) {
+                // Specified 'audio/*' and requested microphone, so go ahead and launch the sound
+                // recorder.
+                startActivity(soundRecIntent);
+                return;
+            }
+            // On a default system, there is no single option to open an audio "gallery". Both the
+            // sound recorder and music browser respond to the OPENABLE/audio/* intent unlike the
+            // image/* and video/* OPENABLE intents where the image / video gallery are the only
+            // respondants (and so the user is not prompted by default).
+        } else {
+            i.setType("*/*");
+        }
+
+        // Combine the chooser and the extra choices (like camera or camcorder)
+        Intent chooser = new Intent(Intent.ACTION_CHOOSER);
+        chooser.putExtra(Intent.EXTRA_INTENT, i);
+
+        Vector<Intent> extraInitialIntents = new Vector<Intent>(0);
+
+        if (addCameraIntent) {
+            extraInitialIntents.add(cameraIntent);
+        }
+
+        if (addCamcorderIntent) {
+            extraInitialIntents.add(camcorderIntent);
+        }
+
+        if (extraInitialIntents.size() > 0) {
+            Intent[] extraIntents = new Intent[extraInitialIntents.size()];
+            chooser.putExtra(Intent.EXTRA_INITIAL_INTENTS,
+                    extraInitialIntents.toArray(extraIntents));
+        }
+
+        chooser.putExtra(Intent.EXTRA_TITLE,
+                mController.getActivity().getResources()
+                        .getString(R.string.choose_upload));
+        startActivity(chooser);
+    }
+
+    private void startActivity(Intent intent) {
+        mController.getActivity().startActivityForResult(intent,
+                Controller.FILE_SELECTED);
+    }
+
+}