2 files changed, 257 insertions, 6 deletions
diff --git a/libs/openpgp-api-lib b/libs/openpgp-api-lib
deleted file mode 160000
-Subproject 0be263d5d3effd2df5f976fa4a127017268749c
diff --git a/libs/openpgp-api-lib/src/org/openintents/openpgp/util/OpenPgpListPreference.java b/libs/openpgp-api-lib/src/org/openintents/openpgp/util/OpenPgpListPreference.java
new file mode 100644
index 00000000..cf586462
--- /dev/null
+++ b/libs/openpgp-api-lib/src/org/openintents/openpgp/util/OpenPgpListPreference.java
@@ -0,0 +1,257 @@
+/*
+ * Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * 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 org.openintents.openpgp.util;
+
+import android.app.AlertDialog.Builder;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.pm.ResolveInfo;
+import android.content.res.TypedArray;
+import android.graphics.drawable.Drawable;
+import android.net.Uri;
+import android.preference.DialogPreference;
+import android.util.AttributeSet;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.ListAdapter;
+import android.widget.TextView;
+import org.openintents.openpgp.R;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Does not extend ListPreference, but is very similar to it!
+ * http://grepcode.com/file_/repository.grepcode.com/java/ext/com.google.android/android/4.4_r1/android/preference/ListPreference.java/?v=source
+ */
+public class OpenPgpListPreference extends DialogPreference {
+    private static final String OPENKEYCHAIN_PACKAGE = "org.sufficientlysecure.keychain";
+    private static final String MARKET_INTENT_URI_BASE = "market://details?id=%s";
+    private static final Intent MARKET_INTENT = new Intent(Intent.ACTION_VIEW, Uri.parse(
+            String.format(MARKET_INTENT_URI_BASE, OPENKEYCHAIN_PACKAGE)));
+
+    private ArrayList<OpenPgpProviderEntry> mLegacyList = new ArrayList<OpenPgpProviderEntry>();
+    private ArrayList<OpenPgpProviderEntry> mList = new ArrayList<OpenPgpProviderEntry>();
+
+    private String mSelectedPackage;
+
+    public OpenPgpListPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public OpenPgpListPreference(Context context) {
+        this(context, null);
+    }
+
+    /**
+     * Public method to add new entries for legacy applications
+     *
+     * @param packageName
+     * @param simpleName
+     * @param icon
+     */
+    public void addLegacyProvider(int position, String packageName, String simpleName, Drawable icon) {
+        mLegacyList.add(position, new OpenPgpProviderEntry(packageName, simpleName, icon));
+    }
+
+    @Override
+    protected void onPrepareDialogBuilder(Builder builder) {
+        mList.clear();
+        
+        // add "none"-entry
+        mList.add(0, new OpenPgpProviderEntry("",
+                getContext().getString(R.string.openpgp_list_preference_none),
+                getContext().getResources().getDrawable(R.drawable.ic_action_cancel_launchersize)));
+        
+        // add all additional (legacy) providers
+        mList.addAll(mLegacyList);
+        
+        // search for OpenPGP providers...
+        ArrayList<OpenPgpProviderEntry> providerList = new ArrayList<OpenPgpProviderEntry>();
+        Intent intent = new Intent(OpenPgpApi.SERVICE_INTENT);
+        List<ResolveInfo> resInfo = getContext().getPackageManager().queryIntentServices(intent, 0);
+        if (!resInfo.isEmpty()) {
+            for (ResolveInfo resolveInfo : resInfo) {
+                if (resolveInfo.serviceInfo == null)
+                    continue;
+
+                String packageName = resolveInfo.serviceInfo.packageName;
+                String simpleName = String.valueOf(resolveInfo.serviceInfo.loadLabel(getContext()
+                        .getPackageManager()));
+                Drawable icon = resolveInfo.serviceInfo.loadIcon(getContext().getPackageManager());
+
+                providerList.add(new OpenPgpProviderEntry(packageName, simpleName, icon));
+            }
+        }
+
+        if (providerList.isEmpty()) {
+            // add install links if provider list is empty
+            resInfo = getContext().getPackageManager().queryIntentActivities
+                    (MARKET_INTENT, 0);
+            for (ResolveInfo resolveInfo : resInfo) {
+                Intent marketIntent = new Intent(MARKET_INTENT);
+                marketIntent.setPackage(resolveInfo.activityInfo.packageName);
+                Drawable icon = resolveInfo.activityInfo.loadIcon(getContext().getPackageManager());
+                String marketName = String.valueOf(resolveInfo.activityInfo.applicationInfo
+                        .loadLabel(getContext().getPackageManager()));
+                String simpleName = String.format(getContext().getString(R.string
+                        .openpgp_install_openkeychain_via), marketName);
+                mList.add(new OpenPgpProviderEntry(OPENKEYCHAIN_PACKAGE, simpleName,
+                        icon, marketIntent));
+            }
+        } else {
+            // add provider
+            mList.addAll(providerList);
+        }
+
+        // Init ArrayAdapter with OpenPGP Providers
+        ListAdapter adapter = new ArrayAdapter<OpenPgpProviderEntry>(getContext(),
+                android.R.layout.select_dialog_singlechoice, android.R.id.text1, mList) {
+            public View getView(int position, View convertView, ViewGroup parent) {
+                // User super class to create the View
+                View v = super.getView(position, convertView, parent);
+                TextView tv = (TextView) v.findViewById(android.R.id.text1);
+
+                // Put the image on the TextView
+                tv.setCompoundDrawablesWithIntrinsicBounds(mList.get(position).icon, null,
+                        null, null);
+
+                // Add margin between image and text (support various screen densities)
+                int dp10 = (int) (10 * getContext().getResources().getDisplayMetrics().density + 0.5f);
+                tv.setCompoundDrawablePadding(dp10);
+
+                return v;
+            }
+        };
+
+        builder.setSingleChoiceItems(adapter, getIndexOfProviderList(getValue()),
+                new DialogInterface.OnClickListener() {
+
+                    @Override
+                    public void onClick(DialogInterface dialog, int which) {
+                        OpenPgpProviderEntry entry = mList.get(which);
+
+                        if (entry.intent != null) {
+                            /*
+                             * Intents are called as activity
+                             *
+                             * Current approach is to assume the user installed the app.
+                             * If he does not, the selected package is not valid.
+                             *
+                             * However  applications should always consider this could happen,
+                             * as the user might remove the currently used OpenPGP app.
+                             */
+                            getContext().startActivity(entry.intent);
+                        }
+
+                        mSelectedPackage = entry.packageName;
+
+                        /*
+                         * Clicking on an item simulates the positive button click, and dismisses
+                         * the dialog.
+                         */
+                        OpenPgpListPreference.this.onClick(dialog, DialogInterface.BUTTON_POSITIVE);
+                        dialog.dismiss();
+                    }
+                });
+
+        /*
+         * The typical interaction for list-based dialogs is to have click-on-an-item dismiss the
+         * dialog instead of the user having to press 'Ok'.
+         */
+        builder.setPositiveButton(null, null);
+    }
+
+    @Override
+    protected void onDialogClosed(boolean positiveResult) {
+        super.onDialogClosed(positiveResult);
+
+        if (positiveResult && (mSelectedPackage != null)) {
+            if (callChangeListener(mSelectedPackage)) {
+                setValue(mSelectedPackage);
+            }
+        }
+    }
+
+    private int getIndexOfProviderList(String packageName) {
+        for (OpenPgpProviderEntry app : mList) {
+            if (app.packageName.equals(packageName)) {
+                return mList.indexOf(app);
+            }
+        }
+
+        return -1;
+    }
+
+    public void setValue(String packageName) {
+        mSelectedPackage = packageName;
+        persistString(packageName);
+    }
+
+    public String getValue() {
+        return mSelectedPackage;
+    }
+
+    public String getEntry() {
+        return getEntryByValue(mSelectedPackage);
+    }
+
+    @Override
+    protected Object onGetDefaultValue(TypedArray a, int index) {
+        return a.getString(index);
+    }
+
+    @Override
+    protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {
+        setValue(restoreValue ? getPersistedString(mSelectedPackage) : (String) defaultValue);
+    }
+
+    public String getEntryByValue(String packageName) {
+        for (OpenPgpProviderEntry app : mList) {
+            if (app.packageName.equals(packageName)) {
+                return app.simpleName;
+            }
+        }
+
+        return null;
+    }
+
+    private static class OpenPgpProviderEntry {
+        private String packageName;
+        private String simpleName;
+        private Drawable icon;
+        private Intent intent;
+
+        public OpenPgpProviderEntry(String packageName, String simpleName, Drawable icon) {
+            this.packageName = packageName;
+            this.simpleName = simpleName;
+            this.icon = icon;
+        }
+
+        public OpenPgpProviderEntry(String packageName, String simpleName, Drawable icon, Intent intent) {
+            this(packageName, simpleName, icon);
+            this.intent = intent;
+        }
+
+        @Override
+        public String toString() {
+            return simpleName;
+        }
+    }
+}