shifted multi-threading to own service

added multi-threaded cloud import, restored KeychainIntentService

eliminated code duplication in multi-threaded import

1 files changed, 172 insertions, 0 deletions

diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/ServiceProgressHandler.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/ServiceProgressHandler.java
new file mode 100644
index 000000000..4bd3481e6
--- /dev/null
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/service/ServiceProgressHandler.java
@@ -0,0 +1,172 @@
+/*
+ * Copyright (C) 2012-2013 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.sufficientlysecure.keychain.service;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+import android.support.v4.app.FragmentActivity;
+import android.support.v4.app.FragmentManager;
+
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.ui.dialog.ProgressDialogFragment;
+import org.sufficientlysecure.keychain.ui.util.Notify;
+import org.sufficientlysecure.keychain.util.Log;
+
+public class ServiceProgressHandler extends Handler {
+
+    // possible messages sent from this service to handler on ui
+    public static enum MessageStatus{
+        UNKNOWN,
+        OKAY,
+        EXCEPTION,
+        UPDATE_PROGRESS,
+        PREVENT_CANCEL;
+
+        private static final MessageStatus[] values = values();
+
+        public static MessageStatus fromInt(int n)
+        {
+            if(n < 0 || n >= values.length) {
+                return UNKNOWN;
+            } else {
+                return values[n];
+            }
+        }
+    }
+
+    // possible data keys for messages
+    public static final String DATA_ERROR = "error";
+    public static final String DATA_PROGRESS = "progress";
+    public static final String DATA_PROGRESS_MAX = "max";
+    public static final String DATA_MESSAGE = "message";
+    public static final String DATA_MESSAGE_ID = "message_id";
+
+    // keybase proof specific
+    public static final String KEYBASE_PROOF_URL = "keybase_proof_url";
+    public static final String KEYBASE_PRESENCE_URL = "keybase_presence_url";
+    public static final String KEYBASE_PRESENCE_LABEL = "keybase_presence_label";
+
+    Activity mActivity;
+    ProgressDialogFragment mProgressDialogFragment;
+
+    public ServiceProgressHandler(Activity activity) {
+        this.mActivity = activity;
+    }
+
+    public ServiceProgressHandler(Activity activity,
+                                  ProgressDialogFragment progressDialogFragment) {
+        this.mActivity = activity;
+        this.mProgressDialogFragment = progressDialogFragment;
+    }
+
+    public ServiceProgressHandler(Activity activity,
+                                  String progressDialogMessage,
+                                  int progressDialogStyle,
+                                  ProgressDialogFragment.ServiceType serviceType) {
+        this(activity, progressDialogMessage, progressDialogStyle, false, serviceType);
+    }
+
+    public ServiceProgressHandler(Activity activity,
+                                  String progressDialogMessage,
+                                  int progressDialogStyle,
+                                  boolean cancelable,
+                                  ProgressDialogFragment.ServiceType serviceType) {
+        this.mActivity = activity;
+        this.mProgressDialogFragment = ProgressDialogFragment.newInstance(
+                progressDialogMessage,
+                progressDialogStyle,
+                cancelable,
+                serviceType);
+    }
+
+    public void showProgressDialog(FragmentActivity activity) {
+        if (mProgressDialogFragment == null) {
+            return;
+        }
+
+        // TODO: This is a hack!, see
+        // http://stackoverflow.com/questions/10114324/show-dialogfragment-from-onactivityresult
+        final FragmentManager manager = activity.getSupportFragmentManager();
+        Handler handler = new Handler();
+        handler.post(new Runnable() {
+            public void run() {
+                mProgressDialogFragment.show(manager, "progressDialog");
+            }
+        });
+    }
+
+    @Override
+    public void handleMessage(Message message) {
+        Bundle data = message.getData();
+
+        if (mProgressDialogFragment == null) {
+            // Log.e(Constants.TAG,
+            // "Progress has not been updated because mProgressDialogFragment was null!");
+            return;
+        }
+
+        MessageStatus status = MessageStatus.fromInt(message.arg1);
+        switch (status) {
+            case OKAY:
+                mProgressDialogFragment.dismissAllowingStateLoss();
+
+                break;
+
+            case EXCEPTION:
+                mProgressDialogFragment.dismissAllowingStateLoss();
+
+                // show error from service
+                if (data.containsKey(DATA_ERROR)) {
+                    Notify.create(mActivity,
+                            mActivity.getString(R.string.error_message, data.getString(DATA_ERROR)),
+                            Notify.Style.ERROR).show();
+                }
+
+                break;
+
+            case UPDATE_PROGRESS:
+                if (data.containsKey(DATA_PROGRESS) && data.containsKey(DATA_PROGRESS_MAX)) {
+
+                    // update progress from service
+                    if (data.containsKey(DATA_MESSAGE)) {
+                        mProgressDialogFragment.setProgress(data.getString(DATA_MESSAGE),
+                                data.getInt(DATA_PROGRESS), data.getInt(DATA_PROGRESS_MAX));
+                    } else if (data.containsKey(DATA_MESSAGE_ID)) {
+                        mProgressDialogFragment.setProgress(data.getInt(DATA_MESSAGE_ID),
+                                data.getInt(DATA_PROGRESS), data.getInt(DATA_PROGRESS_MAX));
+                    } else {
+                        mProgressDialogFragment.setProgress(data.getInt(DATA_PROGRESS),
+                                data.getInt(DATA_PROGRESS_MAX));
+                    }
+                }
+
+                break;
+
+            case PREVENT_CANCEL:
+                mProgressDialogFragment.setPreventCancel(true);
+                break;
+
+            default:
+                Log.e(Constants.TAG, "unknown handler message!");
+                break;
+        }
+    }
+}