Add plugin settings screen

services/plugins/src/main/java/de/mm20/launcher2/plugins/PluginScanner.kt

@@ -2,6 +2,8 @@ import android.content.Context
 import android.content.Intent
 import android.content.pm.PackageManager
 import android.net.Uri
+import android.util.Log
+import de.mm20.launcher2.crashreporter.CrashReporter
 import de.mm20.launcher2.plugin.Plugin
 import de.mm20.launcher2.plugin.PluginType
 
@@ -16,37 +18,44 @@ class PluginScanner(
         val plugins = mutableListOf<Plugin>()
 
         for (cr in contentResolvers) {
-            val providerInfo = cr.providerInfo ?: continue
-            val authority = providerInfo.authority ?: continue
-            val bundle = context.contentResolver.call(
-                Uri.Builder()
-                    .scheme("content")
-                    .authority(authority)
-                    .build(),
-                "getType",
-                null,
-                null,
-            ) ?: continue
-            val type = bundle.getString("type")
-                ?.let {
-                    try {
-                        PluginType.valueOf(it)
-                    } catch (e: IllegalArgumentException) {
-                        null
-                    }
-                } ?: continue
-            plugins.add(
-                Plugin(
-                    label = cr.loadLabel(context.packageManager).toString(),
-                    description = providerInfo.metaData?.getString("de.mm20.launcher2.plugin.description"),
-                    packageName = providerInfo.packageName,
-                    className = providerInfo.name,
-                    type = type,
-                    authority = authority,
-                    settingsActivity = providerInfo.metaData?.getString("de.mm20.launcher2.plugin.settings"),
-                    enabled = false,
+            try {
+                val providerInfo = cr.providerInfo ?: continue
+                val authority = providerInfo.authority ?: continue
+                val bundle = context.contentResolver.call(
+                    Uri.Builder()
+                        .scheme("content")
+                        .authority(authority)
+                        .build(),
+                    "getType",
+                    null,
+                    null,
+                ) ?: continue
+                val type = bundle.getString("type")
+                    ?.let {
+                        try {
+                            PluginType.valueOf(it)
+                        } catch (e: IllegalArgumentException) {
+                            null
+                        }
+                    } ?: continue
+                plugins.add(
+                    Plugin(
+                        label = cr.loadLabel(context.packageManager).toString(),
+                        description = providerInfo.metaData?.getString("de.mm20.launcher2.plugin.description"),
+                        packageName = providerInfo.packageName,
+                        className = providerInfo.name,
+                        type = type,
+                        authority = authority,
+                        settingsActivity = providerInfo.metaData?.getString("de.mm20.launcher2.plugin.settings"),
+                        enabled = false,
+                    )
                 )
-            )
+            } catch (e: SecurityException) {
+                continue
+            } catch (e: Exception) {
+                CrashReporter.logException(e)
+                continue
+            }
         }
 
         return plugins

services/plugins/src/main/java/de/mm20/launcher2/plugins/PluginService.kt

@@ -2,9 +2,12 @@ package de.mm20.launcher2.plugins
 
 import PluginScanner
 import android.content.BroadcastReceiver
+import android.content.ComponentName
 import android.content.Context
 import android.content.Intent
 import android.content.IntentFilter
+import android.content.pm.PackageManager
+import android.graphics.drawable.Drawable
 import android.net.Uri
 import androidx.core.content.ContextCompat
 import de.mm20.launcher2.plugin.Plugin
@@ -16,6 +19,7 @@ import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.launch
@@ -32,7 +36,11 @@ interface PluginService {
     fun enablePlugin(plugin: Plugin)
     fun disablePlugin(plugin: Plugin)
     fun getPluginsWithState(type: PluginType? = null): Flow<List<PluginWithState>>
+
+    fun isPluginHostInstalled(): Flow<Boolean>
     suspend fun getPluginState(plugin: Plugin): PluginState?
+
+    suspend fun getPluginIcon(plugin: Plugin): Drawable?
 }
 
 internal class PluginServiceImpl(
@@ -42,6 +50,10 @@ internal class PluginServiceImpl(
 
     private val scope: CoroutineScope = CoroutineScope(Job() + Dispatchers.Default)
 
+    private val pluginHostInstalled = MutableStateFlow(false)
+
+    private val mutex = Mutex()
+
     init {
         refreshPlugins()
         ContextCompat.registerReceiver(
@@ -65,9 +77,16 @@ internal class PluginServiceImpl(
         repository.update(plugin.copy(enabled = false))
     }
 
-    private val mutex = Mutex()
     private fun refreshPlugins() {
         scope.launch {
+            try {
+                val permission =
+                    context.packageManager.getPermissionInfo(PluginContract.Permission, 0)
+                pluginHostInstalled.value = permission != null
+            } catch (e: PackageManager.NameNotFoundException) {
+                pluginHostInstalled.value = false
+                return@launch
+            }
             mutex.withLock {
                 val enabledPlugins =
                     repository.findMany(enabled = true).first().map { it.authority }
@@ -79,8 +98,8 @@ internal class PluginServiceImpl(
                         it
                     }
                 }
-                repository.deleteMany()
-                repository.insertMany(plugins)
+                repository.deleteMany().join()
+                repository.insertMany(plugins).join()
             }
         }
     }
@@ -128,6 +147,26 @@ internal class PluginServiceImpl(
         }
     }
 
+    override fun isPluginHostInstalled(): Flow<Boolean> {
+        return pluginHostInstalled
+    }
+
+    override suspend fun getPluginIcon(plugin: Plugin): Drawable? {
+        return withContext(Dispatchers.IO) {
+            val info = try {
+                context.packageManager.getProviderInfo(
+                    ComponentName(
+                        plugin.packageName,
+                        plugin.className
+                    ), 0
+                )
+            } catch (e: PackageManager.NameNotFoundException) {
+                return@withContext null
+            }
+            info.loadIcon(context.packageManager) ?: info.applicationInfo?.loadIcon(context.packageManager)
+        }
+    }
+
     private inner class AppUpdateReceiver : BroadcastReceiver() {
         override fun onReceive(context: Context?, intent: Intent?) {
             refreshPlugins()