fix #199, allow duplicating events

app/src/main/kotlin/com/simplemobiletools/calendar/activities/EventActivity.kt

@@ -71,6 +71,10 @@ class EventActivity : SimpleActivity() {
             mEvent = event
             mEventOccurrenceTS = intent.getIntExtra(EVENT_OCCURRENCE_TS, 0)
             setupEditEvent()
+
+            if (intent.getBooleanExtra(IS_DUPLICATE_INTENT, false)) {
+                mEvent.id = 0
+            }
         } else {
             mEvent = Event()
             mReminder1Minutes = config.defaultReminderMinutes
@@ -116,6 +120,7 @@ class EventActivity : SimpleActivity() {
         if (wasActivityInitialized) {
             menu.findItem(R.id.delete).isVisible = mEvent.id != 0
             menu.findItem(R.id.share).isVisible = mEvent.id != 0
+            menu.findItem(R.id.duplicate).isVisible = mEvent.id != 0
         }
         return true
     }
@@ -124,6 +129,7 @@ class EventActivity : SimpleActivity() {
         when (item.itemId) {
             R.id.save -> saveEvent()
             R.id.delete -> deleteEvent()
+            R.id.duplicate -> duplicateEvent()
             R.id.share -> shareEvent()
             else -> return super.onOptionsItemSelected(item)
         }
@@ -515,6 +521,16 @@ class EventActivity : SimpleActivity() {
         }
     }
 
+    private fun duplicateEvent() {
+        Intent(this, EventActivity::class.java).apply {
+            putExtra(EVENT_ID, mEvent.id)
+            putExtra(EVENT_OCCURRENCE_TS, mEventOccurrenceTS)
+            putExtra(IS_DUPLICATE_INTENT, true)
+            startActivity(this)
+        }
+        finish()
+    }
+
     private fun saveEvent() {
         val newTitle = event_title.value
         if (newTitle.isEmpty()) {

app/src/main/kotlin/com/simplemobiletools/calendar/helpers/Constants.kt

@@ -7,6 +7,7 @@ const val STORED_LOCALLY_ONLY = 0
 const val DAY_CODE = "day_code"
 const val YEAR_LABEL = "year"
 const val EVENT_ID = "event_id"
+const val IS_DUPLICATE_INTENT = "is_duplicate_intent"
 const val EVENT_OCCURRENCE_TS = "event_occurrence_ts"
 const val NEW_EVENT_START_TS = "new_event_start_ts"
 const val WEEK_START_TIMESTAMP = "week_start_timestamp"

app/src/main/res/menu/menu_event.xml

@@ -11,6 +11,11 @@
         android:icon="@drawable/ic_delete"
         android:title="@string/delete"
         app:showAsAction="ifRoom"/>
+    <item
+        android:id="@+id/duplicate"
+        android:icon="@drawable/ic_copy"
+        android:title="@string/duplicate_event"
+        app:showAsAction="ifRoom"/>
     <item
         android:id="@+id/share"
         android:icon="@drawable/ic_share"