1 /*
2  * Copyright 2024 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.photopicker.features.selectionbar
18 
19 import androidx.compose.runtime.Composable
20 import androidx.compose.ui.Modifier
21 import com.android.photopicker.core.configuration.PhotopickerConfiguration
22 import com.android.photopicker.core.events.RegisteredEventClass
23 import com.android.photopicker.core.features.FeatureManager
24 import com.android.photopicker.core.features.FeatureRegistration
25 import com.android.photopicker.core.features.FeatureToken
26 import com.android.photopicker.core.features.Location
27 import com.android.photopicker.core.features.LocationParams
28 import com.android.photopicker.core.features.PhotopickerUiFeature
29 import com.android.photopicker.core.features.Priority
30 import com.android.photopicker.core.navigation.Route
31 
32 /** Feature class for the Photopicker's selection bar. */
33 class SelectionBarFeature : PhotopickerUiFeature {
34 
35     companion object Registration : FeatureRegistration {
36         override val TAG: String = "PhotopickerSelectionBarFeature"
37 
38         // The selection bar is only shown when in multi-select mode. For single select,
39         // the activity ends as soon as the first Media is selected, so this feature is
40         // disabled to prevent it's animation for playing when the selection changes.
isEnablednull41         override fun isEnabled(config: PhotopickerConfiguration) = config.selectionLimit > 1
42 
43         override fun build(featureManager: FeatureManager) = SelectionBarFeature()
44     }
45 
46     override fun registerLocations(): List<Pair<Location, Int>> {
47         return listOf(Pair(Location.SELECTION_BAR, Priority.HIGH.priority))
48     }
49 
registerNavigationRoutesnull50     override fun registerNavigationRoutes(): Set<Route> {
51         return emptySet()
52     }
53 
54     override val token = FeatureToken.SELECTION_BAR.token
55 
56     /** Events consumed by the selection bar */
57     override val eventsConsumed = setOf<RegisteredEventClass>()
58 
59     /** Events produced by the selection bar */
60     override val eventsProduced = setOf<RegisteredEventClass>()
61 
62     @Composable
composenull63     override fun compose(location: Location, modifier: Modifier, params: LocationParams) {
64         when (location) {
65             Location.SELECTION_BAR -> SelectionBar(modifier, params)
66             else -> {}
67         }
68     }
69 }
70