Add "Add widget to home screen" to list settings

app/src/main/AndroidManifest.xml

@@ -323,6 +323,14 @@
           android:resource="@xml/samsung_scrollable_flex_window_widget_meta_info"/>
     </receiver>
 
+    <receiver
+        android:name=".widget.RequestPinWidgetReceiver"
+        android:exported="false">
+      <intent-filter>
+        <action android:name="org.tasks.CONFIGURE_WIDGET" />
+      </intent-filter>
+    </receiver>
+
     <!-- ======================================================== Services = -->
 
     <service

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

@@ -1,10 +1,14 @@
 package org.tasks.activities
 
 import android.app.PendingIntent
+import android.appwidget.AppWidgetManager
+import android.content.ComponentName
 import android.content.Context
+import android.content.Intent
 import android.graphics.Bitmap
 import android.graphics.Canvas
 import android.graphics.Paint
+import android.os.Build
 import android.os.Bundle
 import androidx.activity.viewModels
 import androidx.appcompat.app.AppCompatActivity
@@ -21,6 +25,7 @@ import androidx.lifecycle.lifecycleScope
 import com.mikepenz.iconics.IconicsDrawable
 import com.mikepenz.iconics.utils.colorInt
 import com.mikepenz.iconics.utils.sizeDp
+import com.todoroo.andlib.utility.AndroidUtilities
 import kotlinx.coroutines.launch
 import org.tasks.R
 import org.tasks.analytics.Firebase
@@ -43,6 +48,10 @@ import org.tasks.themes.ColorProvider
 import org.tasks.themes.Theme
 import org.tasks.themes.ThemeColor
 import org.tasks.themes.contentColorFor
+import org.tasks.widget.RequestPinWidgetReceiver
+import org.tasks.widget.RequestPinWidgetReceiver.Companion.EXTRA_COLOR
+import org.tasks.widget.RequestPinWidgetReceiver.Companion.EXTRA_FILTER
+import org.tasks.widget.TasksWidget
 import javax.inject.Inject
 
 
@@ -164,6 +173,7 @@ abstract class BaseListSettingsActivity : AppCompatActivity(), ColorPalettePicke
                 clearColor = { clearColor() },
                 pickIcon = { showIconPicker() },
                 addShortcutToHome = { createShortcut() },
+                addWidgetToHome = { createWidget() },
                 extensionContent = extensionContent,
             )
         }
@@ -221,6 +231,28 @@ abstract class BaseListSettingsActivity : AppCompatActivity(), ColorPalettePicke
         }
     }
 
+    protected fun createWidget() {
+        val appWidgetManager = getSystemService(AppWidgetManager::class.java)
+        if (AndroidUtilities.atLeastOreo() && appWidgetManager.isRequestPinAppWidgetSupported) {
+            val provider = ComponentName(this, TasksWidget::class.java)
+            val configIntent = Intent(this, RequestPinWidgetReceiver::class.java).apply {
+                action = RequestPinWidgetReceiver.ACTION_CONFIGURE_WIDGET
+                filter?.let {
+                    putExtra(EXTRA_FILTER, defaultFilterProvider.getFilterPreferenceValue(it))
+                }
+                putExtra(EXTRA_COLOR, baseViewModel.color)
+            }
+            val successCallback = PendingIntent.getBroadcast(
+                this,
+                0,
+                configIntent,
+                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) PendingIntent.FLAG_MUTABLE else PendingIntent.FLAG_UPDATE_CURRENT
+            )
+            appWidgetManager.requestPinAppWidget(provider, null, successCallback)
+            firebase.logEvent(R.string.event_create_widget, R.string.param_type to "settings_activity")
+        }
+    }
+
     companion object {
         private const val FRAG_TAG_COLOR_PICKER = "frag_tag_color_picker"
 

app/src/main/java/org/tasks/compose/settings/AddWidgetToHomeRow.kt

@@ -0,0 +1,69 @@
+package org.tasks.compose.settings
+
+import android.appwidget.AppWidgetManager
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.Home
+import androidx.compose.material.icons.outlined.Widgets
+import androidx.compose.material3.Icon
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalInspectionMode
+import androidx.compose.ui.res.colorResource
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.core.content.pm.ShortcutManagerCompat
+import com.todoroo.andlib.utility.AndroidUtilities
+import com.todoroo.andlib.utility.AndroidUtilities.atLeastOreo
+import org.tasks.R
+import org.tasks.compose.Constants
+import org.tasks.kmp.org.tasks.compose.settings.SettingRow
+import org.tasks.themes.TasksTheme
+
+@Composable
+fun AddWidgetToHomeRow(onClick: () -> Unit) {
+    val context = LocalContext.current
+    val isRequestPinAppWidgetSupported = LocalInspectionMode.current || remember {
+        atLeastOreo() &&
+                context.getSystemService(AppWidgetManager::class.java).isRequestPinAppWidgetSupported
+    }
+    if (isRequestPinAppWidgetSupported) {
+        SettingRow(
+            modifier = Modifier.clickable(onClick = onClick),
+            left = {
+                Box(
+                    modifier = Modifier.size(48.dp),
+                    contentAlignment = Alignment.Center
+                ) {
+                    Icon(
+                        imageVector = Icons.Outlined.Widgets,
+                        contentDescription = null,
+                        tint = colorResource(R.color.icon_tint_with_alpha),
+                    )
+                }
+            },
+            center = {
+                Text(
+                    text = stringResource(R.string.add_widget_to_home_screen),
+                    modifier = Modifier.padding(start = Constants.KEYLINE_FIRST)
+                )
+            }
+        )
+    }
+}
+
+@Composable
+@Preview(showBackground = true)
+private fun AddToHomePreview() {
+    TasksTheme {
+        AddShortcutToHomeRow(onClick = {})
+    }
+}

app/src/main/java/org/tasks/compose/settings/ListSettingsContent.kt

@@ -20,6 +20,7 @@ fun ColumnScope.ListSettingsContent(
     clearColor: () -> Unit,
     pickIcon: () -> Unit,
     addShortcutToHome: () -> Unit,
+    addWidgetToHome: () -> Unit,
     extensionContent: @Composable ColumnScope.() -> Unit,
 ) {
     TitleInput(
@@ -43,6 +44,9 @@ fun ColumnScope.ListSettingsContent(
         AddShortcutToHomeRow(
             onClick = { addShortcutToHome() },
         )
+        AddWidgetToHomeRow(
+            onClick = { addWidgetToHome() }
+        )
     }
     extensionContent()
 }

app/src/main/java/org/tasks/opentasks/OpenTasksListSettingsActivity.kt

@@ -9,6 +9,7 @@ import dagger.hilt.android.AndroidEntryPoint
 import kotlinx.coroutines.launch
 import org.tasks.caldav.BaseCaldavCalendarSettingsActivity
 import org.tasks.compose.settings.AddShortcutToHomeRow
+import org.tasks.compose.settings.AddWidgetToHomeRow
 import org.tasks.compose.settings.ListSettingsScaffold
 import org.tasks.compose.settings.SelectIconRow
 import org.tasks.compose.settings.Toaster
@@ -39,6 +40,7 @@ class OpenTasksListSettingsActivity : BaseCaldavCalendarSettingsActivity() {
                 ) {
                     SelectIconRow(icon = viewState.icon ?: defaultIcon) { showIconPicker() }
                     AddShortcutToHomeRow(onClick = { createShortcut() })
+                    AddWidgetToHomeRow(onClick = { createWidget() })
                 }
                 Toaster(state = snackbar)
             }

app/src/main/java/org/tasks/widget/RequestPinWidgetReceiver.kt

@@ -0,0 +1,35 @@
+package org.tasks.widget
+
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+import dagger.hilt.android.AndroidEntryPoint
+import org.tasks.preferences.Preferences
+import timber.log.Timber
+import javax.inject.Inject
+
+@AndroidEntryPoint
+class RequestPinWidgetReceiver : BroadcastReceiver() {
+    @Inject lateinit var preferences: Preferences
+    @Inject lateinit var appWidgetManager: AppWidgetManager
+
+    override fun onReceive(context: Context, intent: Intent) {
+        val widgetId = intent.getIntExtra(android.appwidget.AppWidgetManager.EXTRA_APPWIDGET_ID, -1)
+        if (widgetId == -1) {
+            Timber.e("Missing widgetId")
+            return
+        }
+        val filter = intent.getStringExtra(EXTRA_FILTER)
+        val color = intent.getIntExtra(EXTRA_COLOR, 0)
+        val widgetPreferences = WidgetPreferences(context, preferences, widgetId)
+        widgetPreferences.setFilter(filter)
+        widgetPreferences.setColor(color)
+        appWidgetManager.reconfigureWidgets()
+    }
+
+    companion object {
+        const val ACTION_CONFIGURE_WIDGET = "org.tasks.CONFIGURE_WIDGET"
+        const val EXTRA_FILTER = "extra_filter"
+        const val EXTRA_COLOR = "extra_color"
+    }
+}

app/src/main/res/values/keys.xml

@@ -425,6 +425,7 @@
   <string name="event_complete_task">complete_task</string>
   <string name="event_request_review">request_review</string>
   <string name="event_create_shortcut">create_shortcut</string>
+  <string name="event_create_widget">create_widget</string>
   <string name="param_type">type</string>
   <string name="p_map_theme">map_theme</string>
   <string name="p_picker_mode_date">picker_mode_date</string>

app/src/main/res/values/strings.xml

@@ -735,4 +735,5 @@ File %1$s contained %2$s.\n\n
   <string name="sort_descending">Descending</string>
   <string name="sort_not_available">Not available for tags, filters, or places</string>
   <string name="add_shortcut_to_home_screen">Add shortcut to home screen</string>
+  <string name="add_widget_to_home_screen">Add widget to home screen</string>
 </resources>