vastly untested refactor. pushing for backup purposes

6 files changed, 607 insertions, 0 deletions

diff --git a/src/main/java/de/pixart/messenger/ui/util/ActivityResult.java b/src/main/java/de/pixart/messenger/ui/util/ActivityResult.java
new file mode 100644
index 000000000..b9c4b2870
--- /dev/null
+++ b/src/main/java/de/pixart/messenger/ui/util/ActivityResult.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2018, Daniel Gultsch All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation and/or
+ * other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ * may be used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package de.pixart.messenger.ui.util;
+
+import android.content.Intent;
+
+public class ActivityResult {
+
+    public final int requestCode;
+    public final int resultCode;
+    public final Intent data;
+
+    private ActivityResult(int requestCode, int resultCode, final Intent data) {
+        this.requestCode = requestCode;
+        this.resultCode = resultCode;
+        this.data = data;
+    }
+
+    public static ActivityResult of(int requestCode, int resultCode, Intent data) {
+        return new ActivityResult(requestCode, resultCode, data);
+    }
+
+}
\ No newline at end of file
diff --git a/src/main/java/de/pixart/messenger/ui/util/AttachmentTool.java b/src/main/java/de/pixart/messenger/ui/util/AttachmentTool.java
new file mode 100644
index 000000000..28b8cd42e
--- /dev/null
+++ b/src/main/java/de/pixart/messenger/ui/util/AttachmentTool.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2018, Daniel Gultsch All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation and/or
+ * other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ * may be used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package de.pixart.messenger.ui.util;
+
+import android.annotation.SuppressLint;
+import android.content.ClipData;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Build;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class AttachmentTool {
+    @SuppressLint("NewApi")
+    public static List<Uri> extractUriFromIntent(final Intent intent) {
+        List<Uri> uris = new ArrayList<>();
+        if (intent == null) {
+            return uris;
+        }
+        Uri uri = intent.getData();
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2 && uri == null) {
+            final ClipData clipData = intent.getClipData();
+            if (clipData != null) {
+                for (int i = 0; i < clipData.getItemCount(); ++i) {
+                    uris.add(clipData.getItemAt(i).getUri());
+                }
+            }
+        } else {
+            uris.add(uri);
+        }
+        return uris;
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/de/pixart/messenger/ui/util/ConversationMenuConfigurator.java b/src/main/java/de/pixart/messenger/ui/util/ConversationMenuConfigurator.java
new file mode 100644
index 000000000..3986ca52c
--- /dev/null
+++ b/src/main/java/de/pixart/messenger/ui/util/ConversationMenuConfigurator.java
@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2018, Daniel Gultsch All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation and/or
+ * other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ * may be used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package de.pixart.messenger.ui.util;
+
+import android.support.annotation.NonNull;
+import android.view.Menu;
+import android.view.MenuItem;
+
+import de.pixart.messenger.Config;
+import de.pixart.messenger.R;
+import de.pixart.messenger.crypto.axolotl.AxolotlService;
+import de.pixart.messenger.entities.Conversation;
+import de.pixart.messenger.entities.Message;
+
+public class ConversationMenuConfigurator {
+
+    public static void configureAttachmentMenu(@NonNull Conversation conversation, Menu menu) {
+        final MenuItem menuAttach = menu.findItem(R.id.action_attach_file);
+
+        final boolean visible;
+        if (conversation.getMode() == Conversation.MODE_MULTI) {
+            visible = conversation.getAccount().httpUploadAvailable() && conversation.getMucOptions().participating();
+        } else {
+            visible = true;
+        }
+        menuAttach.setVisible(visible);
+    }
+
+    public static void configureEncryptionMenu(@NonNull Conversation conversation, Menu menu) {
+        final MenuItem menuSecure = menu.findItem(R.id.action_security);
+        final MenuItem none = menu.findItem(R.id.encryption_choice_none);
+        final MenuItem otr = menu.findItem(R.id.encryption_choice_otr);
+        final MenuItem pgp = menu.findItem(R.id.encryption_choice_pgp);
+        final MenuItem axolotl = menu.findItem(R.id.encryption_choice_axolotl);
+
+        boolean visible;
+        if (conversation.getMode() == Conversation.MODE_MULTI) {
+            visible = (Config.supportOpenPgp() || Config.supportOmemo()) && Config.multipleEncryptionChoices();
+        } else {
+            visible = Config.multipleEncryptionChoices();
+        }
+
+        menuSecure.setVisible(visible);
+
+        if (!visible) {
+            return;
+        }
+
+        if (conversation.getNextEncryption() != Message.ENCRYPTION_NONE) {
+            menuSecure.setIcon(R.drawable.ic_lock_white_24dp);
+        }
+
+        otr.setVisible(Config.supportOtr());
+        if (conversation.getMode() == Conversation.MODE_MULTI) {
+            otr.setVisible(false);
+        }
+        pgp.setVisible(Config.supportOpenPgp());
+        none.setVisible(Config.supportUnencrypted() || conversation.getMode() == Conversation.MODE_MULTI);
+        axolotl.setVisible(Config.supportOmemo());
+        final AxolotlService axolotlService = conversation.getAccount().getAxolotlService();
+        if (axolotlService == null || !axolotlService.isConversationAxolotlCapable(conversation)) {
+            axolotl.setEnabled(false);
+        }
+        switch (conversation.getNextEncryption()) {
+            case Message.ENCRYPTION_NONE:
+                none.setChecked(true);
+                break;
+            case Message.ENCRYPTION_OTR:
+                otr.setChecked(true);
+                break;
+            case Message.ENCRYPTION_PGP:
+                pgp.setChecked(true);
+                break;
+            case Message.ENCRYPTION_AXOLOTL:
+                axolotl.setChecked(true);
+                break;
+            default:
+                none.setChecked(true);
+                break;
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/de/pixart/messenger/ui/util/PresenceSelector.java b/src/main/java/de/pixart/messenger/ui/util/PresenceSelector.java
new file mode 100644
index 000000000..bc72cd889
--- /dev/null
+++ b/src/main/java/de/pixart/messenger/ui/util/PresenceSelector.java
@@ -0,0 +1,136 @@
+/*
+ * Copyright (c) 2018, Daniel Gultsch All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation and/or
+ * other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ * may be used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package de.pixart.messenger.ui.util;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.content.Context;
+import android.util.Pair;
+
+import java.util.Collections;
+import java.util.Map;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import de.pixart.messenger.R;
+import de.pixart.messenger.entities.Contact;
+import de.pixart.messenger.entities.Conversation;
+import de.pixart.messenger.entities.Presences;
+import de.pixart.messenger.utils.CryptoHelper;
+import de.pixart.messenger.xmpp.jid.InvalidJidException;
+import de.pixart.messenger.xmpp.jid.Jid;
+
+public class PresenceSelector {
+
+    public static void showPresenceSelectionDialog(Activity activity, final Conversation conversation, final OnPresenceSelected listener) {
+        final Contact contact = conversation.getContact();
+        final Presences presences = contact.getPresences();
+        AlertDialog.Builder builder = new AlertDialog.Builder(activity);
+        builder.setTitle(activity.getString(R.string.choose_presence));
+        final String[] resourceArray = presences.toResourceArray();
+        Pair<Map<String, String>, Map<String, String>> typeAndName = presences.toTypeAndNameMap();
+        final Map<String, String> resourceTypeMap = typeAndName.first;
+        final Map<String, String> resourceNameMap = typeAndName.second;
+        final String[] readableIdentities = new String[resourceArray.length];
+        final AtomicInteger selectedResource = new AtomicInteger(0);
+        for (int i = 0; i < resourceArray.length; ++i) {
+            String resource = resourceArray[i];
+            if (resource.equals(contact.getLastResource())) {
+                selectedResource.set(i);
+            }
+            String type = resourceTypeMap.get(resource);
+            String name = resourceNameMap.get(resource);
+            if (type != null) {
+                if (Collections.frequency(resourceTypeMap.values(), type) == 1) {
+                    readableIdentities[i] = translateType(activity, type);
+                } else if (name != null) {
+                    if (Collections.frequency(resourceNameMap.values(), name) == 1
+                            || CryptoHelper.UUID_PATTERN.matcher(resource).matches()) {
+                        readableIdentities[i] = translateType(activity, type) + "  (" + name + ")";
+                    } else {
+                        readableIdentities[i] = translateType(activity, type) + " (" + name + " / " + resource + ")";
+                    }
+                } else {
+                    readableIdentities[i] = translateType(activity, type) + " (" + resource + ")";
+                }
+            } else {
+                readableIdentities[i] = resource;
+            }
+        }
+        builder.setSingleChoiceItems(readableIdentities,
+                selectedResource.get(),
+                (dialog, which) -> selectedResource.set(which));
+        builder.setNegativeButton(R.string.cancel, null);
+        builder.setPositiveButton(R.string.ok, (dialog, which) -> {
+            try {
+                Jid next = Jid.fromParts(contact.getJid().getLocalpart(), contact.getJid().getDomainpart(), resourceArray[selectedResource.get()]);
+                conversation.setNextCounterpart(next);
+            } catch (InvalidJidException e) {
+                conversation.setNextCounterpart(null);
+            }
+            listener.onPresenceSelected();
+        });
+        builder.create().show();
+    }
+
+    public static void warnMutualPresenceSubscription(Activity activity, final Conversation conversation, final OnPresenceSelected listener) {
+        AlertDialog.Builder builder = new AlertDialog.Builder(activity);
+        builder.setTitle(conversation.getContact().getJid().toString());
+        builder.setMessage(R.string.without_mutual_presence_updates);
+        builder.setNegativeButton(R.string.cancel, null);
+        builder.setPositiveButton(R.string.ignore, (dialog, which) -> {
+            conversation.setNextCounterpart(null);
+            if (listener != null) {
+                listener.onPresenceSelected();
+            }
+        });
+        builder.create().show();
+    }
+
+    public static String translateType(Context context, String type) {
+        switch (type.toLowerCase()) {
+            case "pc":
+                return context.getString(R.string.type_pc);
+            case "phone":
+                return context.getString(R.string.type_phone);
+            case "tablet":
+                return context.getString(R.string.type_tablet);
+            case "web":
+                return context.getString(R.string.type_web);
+            case "console":
+                return context.getString(R.string.type_console);
+            default:
+                return type;
+        }
+    }
+
+    public interface OnPresenceSelected {
+        void onPresenceSelected();
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/de/pixart/messenger/ui/util/SendButtonAction.java b/src/main/java/de/pixart/messenger/ui/util/SendButtonAction.java
new file mode 100644
index 000000000..6258b49c6
--- /dev/null
+++ b/src/main/java/de/pixart/messenger/ui/util/SendButtonAction.java
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2018, Daniel Gultsch All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation and/or
+ * other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ * may be used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package de.pixart.messenger.ui.util;
+
+import static de.pixart.messenger.ui.ConversationFragment.ATTACHMENT_CHOICE_CHOOSE_IMAGE;
+import static de.pixart.messenger.ui.ConversationFragment.ATTACHMENT_CHOICE_LOCATION;
+import static de.pixart.messenger.ui.ConversationFragment.ATTACHMENT_CHOICE_RECORD_VOICE;
+import static de.pixart.messenger.ui.ConversationFragment.ATTACHMENT_CHOICE_TAKE_FROM_CAMERA;
+
+public enum SendButtonAction {
+    TEXT, TAKE_FROM_CAMERA, SEND_LOCATION, RECORD_VOICE, CANCEL, CHOOSE_PICTURE;
+
+    public static SendButtonAction valueOfOrDefault(String setting, SendButtonAction text) {
+        try {
+            return valueOf(setting);
+        } catch (IllegalArgumentException e) {
+            return TEXT;
+        }
+    }
+
+    public static SendButtonAction of(int attachmentChoice) {
+        switch (attachmentChoice) {
+            case ATTACHMENT_CHOICE_LOCATION:
+                return SEND_LOCATION;
+            case ATTACHMENT_CHOICE_RECORD_VOICE:
+                return RECORD_VOICE;
+            case ATTACHMENT_CHOICE_TAKE_FROM_CAMERA:
+                return TAKE_FROM_CAMERA;
+            case ATTACHMENT_CHOICE_CHOOSE_IMAGE:
+                return CHOOSE_PICTURE;
+            default:
+                throw new IllegalArgumentException("Not a known attachment choice");
+        }
+    }
+
+    public int toChoice() {
+        switch (this) {
+            case TAKE_FROM_CAMERA:
+                return ATTACHMENT_CHOICE_TAKE_FROM_CAMERA;
+            case SEND_LOCATION:
+                return ATTACHMENT_CHOICE_LOCATION;
+            case RECORD_VOICE:
+                return ATTACHMENT_CHOICE_RECORD_VOICE;
+            case CHOOSE_PICTURE:
+                return ATTACHMENT_CHOICE_CHOOSE_IMAGE;
+            default:
+                return 0;
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/de/pixart/messenger/ui/util/SendButtonTool.java b/src/main/java/de/pixart/messenger/ui/util/SendButtonTool.java
new file mode 100644
index 000000000..099365cc8
--- /dev/null
+++ b/src/main/java/de/pixart/messenger/ui/util/SendButtonTool.java
@@ -0,0 +1,174 @@
+/*
+ * Copyright (c) 2018, Daniel Gultsch All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation and/or
+ * other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ * may be used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package de.pixart.messenger.ui.util;
+
+import android.app.Activity;
+import android.content.SharedPreferences;
+import android.content.res.TypedArray;
+import android.preference.PreferenceManager;
+
+import de.pixart.messenger.R;
+import de.pixart.messenger.entities.Conversation;
+import de.pixart.messenger.entities.Presence;
+import de.pixart.messenger.ui.ConversationFragment;
+import de.pixart.messenger.utils.UIHelper;
+
+public class SendButtonTool {
+
+    public static SendButtonAction getAction(Activity activity, Conversation c, String text) {
+        final SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(activity);
+        final boolean empty = text.length() == 0;
+        final boolean conference = c.getMode() == Conversation.MODE_MULTI;
+        if (c.getCorrectingMessage() != null && (empty || text.equals(c.getCorrectingMessage().getBody()))) {
+            return SendButtonAction.CANCEL;
+        } else if (conference && !c.getAccount().httpUploadAvailable()) {
+            if (empty && c.getNextCounterpart() != null) {
+                return SendButtonAction.CANCEL;
+            } else {
+                return SendButtonAction.TEXT;
+            }
+        } else {
+            if (empty) {
+                if (conference && c.getNextCounterpart() != null) {
+                    return SendButtonAction.CANCEL;
+                } else {
+                    String setting = preferences.getString("quick_action", activity.getResources().getString(R.string.quick_action));
+                    if (!setting.equals("none") && UIHelper.receivedLocationQuestion(c.getLatestMessage())) {
+                        return SendButtonAction.SEND_LOCATION;
+                    } else {
+                        if (setting.equals("recent")) {
+                            setting = preferences.getString(ConversationFragment.RECENTLY_USED_QUICK_ACTION, SendButtonAction.TEXT.toString());
+                            return SendButtonAction.valueOfOrDefault(setting, SendButtonAction.TEXT);
+                        } else {
+                            return SendButtonAction.valueOfOrDefault(setting, SendButtonAction.TEXT);
+                        }
+                    }
+                }
+            } else {
+                return SendButtonAction.TEXT;
+            }
+        }
+    }
+
+    public static int getSendButtonImageResource(Activity activity, SendButtonAction action, Presence.Status status) {
+        switch (action) {
+            case TEXT:
+                switch (status) {
+                    case CHAT:
+                    case ONLINE:
+                        return R.drawable.ic_send_text_online;
+                    case AWAY:
+                        return R.drawable.ic_send_text_away;
+                    case XA:
+                    case DND:
+                        return R.drawable.ic_send_text_dnd;
+                    default:
+                        return R.drawable.ic_send_text_offline;
+                }
+            case TAKE_FROM_CAMERA:
+                switch (status) {
+                    case CHAT:
+                    case ONLINE:
+                        return R.drawable.ic_send_photo_online;
+                    case AWAY:
+                        return R.drawable.ic_send_photo_away;
+                    case XA:
+                    case DND:
+                        return R.drawable.ic_send_photo_dnd;
+                    default:
+                        return R.drawable.ic_send_photo_offline;
+                }
+            case RECORD_VOICE:
+                switch (status) {
+                    case CHAT:
+                    case ONLINE:
+                        return R.drawable.ic_send_voice_online;
+                    case AWAY:
+                        return R.drawable.ic_send_voice_away;
+                    case XA:
+                    case DND:
+                        return R.drawable.ic_send_voice_dnd;
+                    default:
+                        return R.drawable.ic_send_voice_offline;
+                }
+            case SEND_LOCATION:
+                switch (status) {
+                    case CHAT:
+                    case ONLINE:
+                        return R.drawable.ic_send_location_online;
+                    case AWAY:
+                        return R.drawable.ic_send_location_away;
+                    case XA:
+                    case DND:
+                        return R.drawable.ic_send_location_dnd;
+                    default:
+                        return R.drawable.ic_send_location_offline;
+                }
+            case CANCEL:
+                switch (status) {
+                    case CHAT:
+                    case ONLINE:
+                        return R.drawable.ic_send_cancel_online;
+                    case AWAY:
+                        return R.drawable.ic_send_cancel_away;
+                    case XA:
+                    case DND:
+                        return R.drawable.ic_send_cancel_dnd;
+                    default:
+                        return R.drawable.ic_send_cancel_offline;
+                }
+            case CHOOSE_PICTURE:
+                switch (status) {
+                    case CHAT:
+                    case ONLINE:
+                        return R.drawable.ic_send_picture_online;
+                    case AWAY:
+                        return R.drawable.ic_send_picture_away;
+                    case XA:
+                    case DND:
+                        return R.drawable.ic_send_picture_dnd;
+                    default:
+                        return R.drawable.ic_send_picture_offline;
+                }
+        }
+        return R.drawable.ic_send_text_offline;
+    }
+
+    private static int getThemeResource(Activity activity, int r_attr_name, int r_drawable_def) {
+        int[] attrs = {r_attr_name};
+        TypedArray ta = activity.getTheme().obtainStyledAttributes(attrs);
+
+        int res = ta.getResourceId(0, r_drawable_def);
+        ta.recycle();
+
+        return res;
+    }
+
+}
\ No newline at end of file