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feat(mlkit): add open-source document scanner (fixes Google Drive scan) #3843

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feat(mlkit): add open-source document scanner (fixes Google Drive scan) #3843

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fc4e5fa
ModuleInstall: Report ML Kit document scanner features when handled l…
grenadin Sep 30, 2026
4108ca2
MLKit: Add support for ACTION_SCAN_DOCUMENT activity
grenadin Sep 30, 2026
0069baf
Vision: Detect and correct document edges using OpenCV
grenadin Sep 30, 2026
eddc40d
Vision: Detect documents whose outline is interrupted by printed content
grenadin Sep 30, 2026
8ef4943
Vision: Keep the previewed document outline after capture and detect …
grenadin Oct 1, 2026
08b1fc0
MLKit: Add flash toggle to document scanner
grenadin Oct 1, 2026
8971d82
MLKit: Add crop options and magnifier to document scanner review
grenadin Oct 1, 2026
41e8786
MLKit: Add automatic capture to document scanner
grenadin Oct 1, 2026
981516b
MLKit: Add page preview to document scanner
grenadin Oct 1, 2026
6c24652
MLKit: Add filters and shadow removal to document scanner
grenadin Oct 1, 2026
ebb6843
MLKit: Use the camera requested by the document scanner caller
grenadin Oct 1, 2026
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25 changes: 22 additions & 3 deletions ...es-base/core/package/src/main/kotlin/org/microg/gms/moduleinstall/ModuleInstallService.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,8 @@

package org.microg.gms.moduleinstall

import android.content.Context
import android.content.Intent
import android.os.Bundle
import android.util.Log
import com.google.android.gms.common.Feature
Expand All @@ -27,22 +29,30 @@ import org.microg.gms.common.GmsService

private const val TAG = "ModuleInstall"

private const val ACTION_SCAN_DOCUMENT = "com.google.android.gms.mlkit.ACTION_SCAN_DOCUMENT"
private const val FEATURE_PREFIX_DOCUMENT_SCANNER = "mlkit.docscan."

class ModuleInstallService : BaseService(TAG, GmsService.MODULE_INSTALL) {
override fun handleServiceRequest(callback: IGmsCallbacks, request: GetServiceRequest, service: GmsService) {
val binder = ModuleInstallServiceImpl().asBinder()
val binder = ModuleInstallServiceImpl(this).asBinder()
callback.onPostInitCompleteWithConnectionInfo(CommonStatusCodes.SUCCESS, binder, ConnectionInfo().apply {
features = arrayOf(Feature("moduleinstall", 7))
})
}
}

class ModuleInstallServiceImpl : IModuleInstallService.Stub() {
class ModuleInstallServiceImpl(private val context: Context) : IModuleInstallService.Stub() {
override fun areModulesAvailable(callbacks: IModuleInstallCallbacks?, request: ApiFeatureRequest?) {
Log.d(TAG, "Not yet implemented: areModulesAvailable $request")
runCatching { callbacks?.onModuleAvailabilityResponse(Status.SUCCESS, ModuleAvailabilityResponse(true, STATUS_ALREADY_AVAILABLE)) }
}

override fun installModules(callbacks: IModuleInstallCallbacks?, request: ApiFeatureRequest?, listener: IModuleInstallStatusListener?) {
if (isProvidedLocally(request)) {
Log.d(TAG, "installModules: provided locally $request")
runCatching { callbacks?.onModuleInstallResponse(Status.SUCCESS, ModuleInstallResponse(0, true)) }
return
}
Log.d(TAG, "Not yet implemented: installModules $request")
runCatching { callbacks?.onModuleInstallResponse(Status.CANCELED, ModuleInstallResponse(0, true)) }
}
Expand All @@ -62,4 +72,13 @@ class ModuleInstallServiceImpl : IModuleInstallService.Stub() {
runCatching { callback?.onResult(Status.SUCCESS) }
}

}
private fun isProvidedLocally(request: ApiFeatureRequest?): Boolean {
val features = request?.features.orEmpty()
if (features.isEmpty()) return false
if (features.all { it.name.startsWith(FEATURE_PREFIX_DOCUMENT_SCANNER) }) {
val intent = Intent(ACTION_SCAN_DOCUMENT).setPackage(context.packageName)
return context.packageManager.resolveActivity(intent, 0) != null
}
return false
}
}
13 changes: 13 additions & 0 deletions play-services-core/src/main/AndroidManifest.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -1328,6 +1328,19 @@
</intent-filter>
</activity>

<activity
android:name="org.microg.gms.mlkit.DocumentScanningActivity"
android:exported="true"
android:process=":ui"
android:excludeFromRecents="true"
android:theme="@style/Theme.AppCompat.DayNight.NoActionBar">
<intent-filter>
<action android:name="com.google.android.gms.mlkit.ACTION_SCAN_DOCUMENT" />

<category android:name="android.intent.category.DEFAULT" />
</intent-filter>
</activity>

<service
android:name="com.google.android.gms.maps.auth.ApiTokenService"
android:exported="true"/>
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