Add custom filter criteria for recurring tasks

app/src/main/java/com/todoroo/astrid/api/BooleanCriterion.kt

@@ -0,0 +1,35 @@
+package com.todoroo.astrid.api
+
+import android.os.Parcel
+import android.os.Parcelable
+
+class BooleanCriterion constructor() : CustomFilterCriterion(), Parcelable {
+
+    constructor(identifier: String, title: String, sql: String): this() {
+        this.identifier = identifier
+        this.text = title
+        this.sql = sql
+        this.name = title
+    }
+
+    override fun describeContents() = 0
+
+    override fun writeToParcel(dest: Parcel?, flags: Int) {
+        writeToParcel(dest)
+    }
+
+    companion object {
+        @JvmField
+        val CREATOR: Parcelable.Creator<BooleanCriterion> = object : Parcelable.Creator<BooleanCriterion> {
+            override fun createFromParcel(source: Parcel?): BooleanCriterion {
+                val item = BooleanCriterion()
+                item.readFromParcel(source)
+                return item
+            }
+
+            override fun newArray(size: Int): Array<BooleanCriterion?> {
+                return arrayOfNulls(size)
+            }
+        }
+    }
+}

app/src/main/java/com/todoroo/astrid/core/CriterionInstance.kt

@@ -1,6 +1,7 @@
 package com.todoroo.astrid.core
 
 import com.todoroo.andlib.utility.AndroidUtilities
+import com.todoroo.astrid.api.BooleanCriterion
 import com.todoroo.astrid.api.CustomFilterCriterion
 import com.todoroo.astrid.api.MultipleSelectCriterion
 import com.todoroo.astrid.api.TextInputCriterion
@@ -47,6 +48,8 @@ class CriterionInstance {
                 return if (selectedText == null) {
                     criterion.text
                 } else criterion.text.replace("?", selectedText!!)
+            } else if (criterion is BooleanCriterion) {
+                return criterion.name
             }
             throw UnsupportedOperationException("Unknown criterion type") // $NON-NLS-1$
         }
@@ -63,6 +66,8 @@ class CriterionInstance {
                 } else criterion.text
             } else if (criterion is TextInputCriterion) {
                 return selectedText
+            } else if (criterion is BooleanCriterion) {
+                return criterion.name
             }
             throw UnsupportedOperationException("Unknown criterion type") // $NON-NLS-1$
         }

app/src/main/java/com/todoroo/astrid/data/Task.kt

@@ -527,6 +527,7 @@ class Task : Parcelable {
         @JvmField val NOTES = TABLE.column("notes")
         @JvmField val TIMER_START = TABLE.column("timerStart")
         @JvmField val PARENT = TABLE.column("parent")
+        @JvmField val RECURRENCE = TABLE.column("recurrence")
 
         /** constant value for no uuid  */
         const val NO_UUID = "0" // $NON-NLS-1$

app/src/main/java/org/tasks/activities/FilterSettingsActivity.kt

@@ -178,10 +178,10 @@ class FilterSettingsActivity : BaseListSettingsActivity() {
                     .setItems(names) { dialog: DialogInterface, which: Int ->
                         val instance = CriterionInstance()
                         instance.criterion = all[which]
-                        showOptionsFor(instance, Runnable {
+                        showOptionsFor(instance) {
                             criteria.add(instance)
                             updateList()
-                        })
+                        }
                         dialog.dismiss()
                     }
                     .show()
@@ -190,6 +190,10 @@ class FilterSettingsActivity : BaseListSettingsActivity() {
 
     /** Show options menu for the given criterioninstance  */
     private fun showOptionsFor(item: CriterionInstance, onComplete: Runnable?) {
+        if (item.criterion is BooleanCriterion) {
+            onComplete?.run()
+            return
+        }
         val dialog = dialogBuilder.newDialog(item.criterion.name)
         if (item.criterion is MultipleSelectCriterion) {
             val multiSelectCriterion = item.criterion as MultipleSelectCriterion

app/src/main/java/org/tasks/filters/FilterCriteriaProvider.kt

@@ -6,10 +6,7 @@ import com.todoroo.andlib.sql.Criterion.Companion.or
 import com.todoroo.andlib.sql.Field.Companion.field
 import com.todoroo.andlib.sql.Join.Companion.inner
 import com.todoroo.andlib.sql.Query.Companion.select
-import com.todoroo.astrid.api.CustomFilterCriterion
-import com.todoroo.astrid.api.MultipleSelectCriterion
-import com.todoroo.astrid.api.PermaSql
-import com.todoroo.astrid.api.TextInputCriterion
+import com.todoroo.astrid.api.*
 import com.todoroo.astrid.data.Task
 import dagger.hilt.android.qualifiers.ApplicationContext
 import org.tasks.R
@@ -35,6 +32,7 @@ class FilterCriteriaProvider @Inject constructor(
             IDENTIFIER_CALDAV -> caldavFilterCriteria()
             IDENTIFIER_TAG_IS -> tagFilter()
             IDENTIFIER_TAG_CONTAINS -> tagNameContainsFilter
+            IDENTIFIER_RECUR -> recurringFilter
             else -> throw RuntimeException("Unknown identifier: $identifier")
         }
     }
@@ -60,6 +58,7 @@ class FilterCriteriaProvider @Inject constructor(
             result.add(gtasksFilterCriteria())
         }
         result.add(caldavFilterCriteria())
+        result.add(recurringFilter)
         return result
     }
 
@@ -87,6 +86,16 @@ class FilterCriteriaProvider @Inject constructor(
                 context.getString(R.string.CFC_tag_name))
     }
 
+    private val recurringFilter: CustomFilterCriterion
+        get() = BooleanCriterion(
+                    IDENTIFIER_RECUR,
+                    context.getString(R.string.repeats_single, "").trim(),
+                    select(Task.ID)
+                            .from(Task.TABLE)
+                            .where(field("LENGTH(${Task.RECURRENCE})>0").eq(1))
+                            .toString()
+            )
+
     val tagNameContainsFilter: CustomFilterCriterion
         get() = TextInputCriterion(
                 IDENTIFIER_TAG_CONTAINS,
@@ -229,5 +238,6 @@ class FilterCriteriaProvider @Inject constructor(
         private const val IDENTIFIER_CALDAV = "caldavlist"
         private const val IDENTIFIER_TAG_IS = "tag_is"
         private const val IDENTIFIER_TAG_CONTAINS = "tag_contains"
+        private const val IDENTIFIER_RECUR = "tag_recur"
     }
 }