Added a feature to duplicate existing habits.

android-base/src/main/java/org/isoron/androidbase/activities/BaseSelectionMenu.java

@@ -40,6 +40,8 @@ public abstract class BaseSelectionMenu
     @Nullable
     private ActionMode actionMode;
 
+    public static boolean duplicateIsSelected = false;
+
     /**
      * Finishes the selection operation.
      */

uhabits-android/src/main/java/org/isoron/uhabits/HabitsApplicationComponent.java

@@ -54,6 +54,8 @@ public interface HabitsApplicationComponent
 
     CreateHabitCommandFactory getCreateHabitCommandFactory();
 
+    DuplicateHabitCommandFactory getDuplicateHabitCommandFactory();
+
     EditHabitCommandFactory getEditHabitCommandFactory();
 
     GenericImporter getGenericImporter();

uhabits-android/src/main/java/org/isoron/uhabits/activities/habits/edit/EditHabitDialog.java

@@ -40,6 +40,7 @@ import org.isoron.uhabits.core.preferences.*;
 import butterknife.*;
 
 import static android.view.View.GONE;
+import static org.isoron.androidbase.activities.BaseSelectionMenu.duplicateIsSelected;
 import static org.isoron.uhabits.core.ui.ThemeSwitcher.THEME_LIGHT;
 
 public class EditHabitDialog extends AppCompatDialogFragment
@@ -119,23 +120,29 @@ public class EditHabitDialog extends AppCompatDialogFragment
 
     protected int getTitle()
     {
-        if (originalHabit != null) return R.string.edit_habit;
+        if (originalHabit != null) {
+            if(duplicateIsSelected){
+                return R.string.duplicate_habit;
+            }else{
+            return R.string.edit_habit;}
+        }
         else return R.string.create_habit;
     }
 
     protected void saveHabit(@NonNull Habit habit)
     {
         if (originalHabit == null)
-        {
             commandRunner.execute(component
-                .getCreateHabitCommandFactory()
-                .create(habitList, habit), null);
-        }
+                    .getCreateHabitCommandFactory()
+                    .create(habitList, habit), null);
         else
-        {
+            if (duplicateIsSelected){
+                commandRunner.execute(component
+                        .getDuplicateHabitCommandFactory()
+                        .create(habitList, habit), null);
+            }else {
             commandRunner.execute(component.getEditHabitCommandFactory().
-                create(habitList, originalHabit, habit), originalHabit.getId());
-        }
+                    create(habitList, originalHabit, habit), originalHabit.getId());}
     }
 
     private int getTypeFromArguments()

uhabits-android/src/main/java/org/isoron/uhabits/activities/habits/list/ListHabitsScreen.kt

@@ -230,6 +230,7 @@ class ListHabitsScreen
             is ChangeHabitColorCommand -> return R.string.toast_habit_changed
             is CreateHabitCommand -> return R.string.toast_habit_created
             is DeleteHabitsCommand -> return R.string.toast_habit_deleted
+            is DuplicateHabitCommand -> return R.string.toast_habit_duplicated
             is EditHabitCommand -> return R.string.toast_habit_changed
             is UnarchiveHabitsCommand -> return R.string.toast_habit_unarchived
             else -> return null

uhabits-android/src/main/java/org/isoron/uhabits/activities/habits/list/ListHabitsSelectionMenu.kt

@@ -64,6 +64,12 @@ class ListHabitsSelectionMenu @Inject constructor(
                 return true
             }
 
+            R.id.action_duplicate -> {
+                duplicateIsSelected = true
+                behavior.onDuplicateHabits()
+                return true
+            }
+
             R.id.action_color -> {
                 behavior.onChangeColor()
                 return true

uhabits-android/src/main/res/menu/list_habits_selection.xml

@@ -46,4 +46,9 @@
         android:title="@string/delete"
         app:showAsAction="never"/>
 
+    <item
+        android:id="@+id/action_duplicate"
+        android:title="@string/duplicate"
+        app:showAsAction="never"/>
+
 </menu>

uhabits-android/src/main/res/values/strings.xml

@@ -22,6 +22,7 @@
     <string name="app_name">Loop Habit Tracker</string>
     <string name="main_activity_title">Habits</string>
     <string name="action_settings">Settings</string>
+    <string name="duplicate">Duplicate</string>
     <string name="edit">Edit</string>
     <string name="delete">Delete</string>
     <string name="archive">Archive</string>
@@ -31,6 +32,7 @@
 
     <string name="toast_habit_created">Habit created</string>
     <string name="toast_habit_deleted">Habit deleted</string>
+    <string name="toast_habit_duplicated">Habit duplicated</string>
     <string name="toast_habit_restored">Habits restored</string>
     <string name="toast_nothing_to_undo">Nothing to undo</string>
     <string name="toast_nothing_to_redo">Nothing to redo</string>
@@ -60,6 +62,7 @@
     <string name="validation_at_most_one_rep_per_day">You can have at most one repetition per day</string>
     <string name="create_habit">Create habit</string>
     <string name="edit_habit">Edit habit</string>
+    <string name="duplicate_habit">Duplicate habit</string>
     <string name="check">Check</string>
     <string name="snooze">Later</string>
 
@@ -100,6 +103,7 @@
     <string name="hint_drag">To rearrange the entries, press-and-hold on the name of the habit, then drag it to the correct place.</string>
     <string name="hint_landscape">You can see more days by putting your phone in landscape mode.</string>
     <string name="delete_habit">Delete Habit</string>
+    <string name="delete_habits">Delete Habits</string>
     <string name="delete_habits_message">The habit will be permanently deleted. This action cannot be undone.</string>
     <string name="habit_not_found">Habit deleted / not found</string>
     <string name="weekends">Weekends</string>

uhabits-core/src/main/java/org/isoron/uhabits/core/commands/DuplicateHabitCommand.java

@@ -0,0 +1,120 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker 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.
+ *
+ * Loop Habit Tracker 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.isoron.uhabits.core.commands;
+
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+
+import com.google.auto.factory.AutoFactory;
+import com.google.auto.factory.Provided;
+
+import org.isoron.uhabits.core.models.Habit;
+import org.isoron.uhabits.core.models.HabitList;
+import org.isoron.uhabits.core.models.HabitNotFoundException;
+import org.isoron.uhabits.core.models.ModelFactory;
+
+/**
+ * Command to create a habit.
+ */
+@AutoFactory
+public class DuplicateHabitCommand extends Command
+{
+    ModelFactory modelFactory;
+
+    HabitList habitList;
+
+    @NonNull
+    Habit model;
+
+    @Nullable
+    Long savedId;
+
+    public DuplicateHabitCommand(@Provided @NonNull ModelFactory modelFactory,
+                                 @NonNull HabitList habitList,
+                                 @NonNull Habit model)
+    {
+        this.modelFactory = modelFactory;
+        this.habitList = habitList;
+        this.model = model;
+    }
+
+    @Override
+    public void execute()
+    {
+        Habit savedHabit = modelFactory.buildHabit();
+        savedHabit.copyFrom(model);
+        savedHabit.setId(savedId);
+
+        habitList.add(savedHabit);
+        savedId = savedHabit.getId();
+    }
+
+    @NonNull
+    @Override
+    public Record toRecord()
+    {
+        return new Record(this);
+    }
+
+    @Override
+    public void undo()
+    {
+        if (savedId == null) throw new IllegalStateException();
+
+        Habit habit = habitList.getById(savedId);
+        if (habit == null) throw new HabitNotFoundException();
+
+        habitList.remove(habit);
+    }
+
+    public static class Record
+    {
+        @NonNull
+        public String id;
+
+        @NonNull
+        public String event = "CreateHabit";
+
+        @NonNull
+        public Habit.HabitData habit;
+
+        @Nullable
+        public Long savedId;
+
+        public Record(DuplicateHabitCommand command)
+        {
+            id = command.getId();
+            habit = command.model.getData();
+            savedId = command.savedId;
+        }
+
+        public DuplicateHabitCommand toCommand(@NonNull ModelFactory modelFactory,
+                                               @NonNull HabitList habitList)
+        {
+            Habit h = modelFactory.buildHabit(habit);
+
+            DuplicateHabitCommand command;
+            command = new DuplicateHabitCommand(modelFactory, habitList, h);
+            command.savedId = savedId;
+            command.setId(id);
+            return command;
+        }
+    }
+}

uhabits-core/src/main/java/org/isoron/uhabits/core/ui/screens/habits/list/ListHabitsSelectionMenuBehavior.java

@@ -109,6 +109,11 @@ public class ListHabitsSelectionMenuBehavior
         });
     }
 
+    public void onDuplicateHabits()
+    {
+        screen.showEditHabitsScreen(adapter.getSelected());
+    }
+
     public void onEditHabits()
     {
         screen.showEditHabitsScreen(adapter.getSelected());