1 /*
2  * Copyright (C) 2020 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.systemui.controls.ui
18 
19 import android.graphics.BlendMode
20 import android.graphics.BlendModeColorFilter
21 import android.graphics.drawable.ClipDrawable
22 import android.graphics.drawable.LayerDrawable
23 import android.view.View
24 import android.service.controls.Control
25 import android.service.controls.templates.TemperatureControlTemplate
26 import android.service.controls.templates.ThumbnailTemplate
27 import android.util.TypedValue
28 
29 import com.android.systemui.res.R
30 import com.android.systemui.controls.ui.ControlViewHolder.Companion.MAX_LEVEL
31 import com.android.systemui.controls.ui.ControlViewHolder.Companion.MIN_LEVEL
32 
33 /**
34  * Supports display of static images on the background of the tile. When marked active, the title
35  * and subtitle will not be visible. To be used with {@link Thumbnailtemplate} only.
36  */
37 class ThumbnailBehavior(currentUserId: Int) : Behavior {
38     lateinit var template: ThumbnailTemplate
39     lateinit var control: Control
40     lateinit var cvh: ControlViewHolder
41     private var shadowOffsetX: Float = 0f
42     private var shadowOffsetY: Float = 0f
43     private var shadowRadius: Float = 0f
44     private var shadowColor: Int = 0
45 
46     private val canUseIconPredicate = CanUseIconPredicate(currentUserId)
47     private val enabled: Boolean
48         get() = template.isActive()
49 
initializenull50     override fun initialize(cvh: ControlViewHolder) {
51         this.cvh = cvh
52 
53         val outValue = TypedValue()
54         cvh.context.resources.getValue(R.dimen.controls_thumbnail_shadow_x, outValue, true)
55         shadowOffsetX = outValue.getFloat()
56 
57         cvh.context.resources.getValue(R.dimen.controls_thumbnail_shadow_y, outValue, true)
58         shadowOffsetY = outValue.getFloat()
59 
60         cvh.context.resources.getValue(R.dimen.controls_thumbnail_shadow_radius, outValue, true)
61         shadowRadius = outValue.getFloat()
62 
63         shadowColor = cvh.context.resources.getColor(R.color.control_thumbnail_shadow_color)
64         cvh.layout.setOnClickListener(View.OnClickListener() {
65             cvh.controlActionCoordinator.touch(cvh, template.getTemplateId(), control)
66         })
67     }
68 
bindnull69     override fun bind(cws: ControlWithState, colorOffset: Int) {
70         this.control = cws.control!!
71         cvh.setStatusText(control.getStatusText())
72         template = control.controlTemplate as? ThumbnailTemplate
73                 ?: (control.controlTemplate as TemperatureControlTemplate).template
74                         as ThumbnailTemplate
75 
76         val ld = cvh.layout.getBackground() as LayerDrawable
77         val clipLayer = ld.findDrawableByLayerId(R.id.clip_layer) as ClipDrawable
78 
79         clipLayer.setLevel(if (enabled) MAX_LEVEL else MIN_LEVEL)
80 
81         if (template.isActive()) {
82             cvh.title.visibility = View.INVISIBLE
83             cvh.subtitle.visibility = View.INVISIBLE
84             cvh.status.setShadowLayer(shadowOffsetX, shadowOffsetY, shadowRadius, shadowColor)
85 
86             cvh.bgExecutor.execute {
87                 val drawable = template.thumbnail
88                         ?.takeIf(canUseIconPredicate)
89                         ?.loadDrawable(cvh.context)
90                 cvh.uiExecutor.execute {
91                     val radius = cvh.context.getResources()
92                         .getDimensionPixelSize(R.dimen.control_corner_radius).toFloat()
93                     // TODO(b/290037843): Add a placeholder
94                     drawable?.let {
95                         clipLayer.drawable = CornerDrawable(it, radius)
96                     }
97                     clipLayer.setColorFilter(BlendModeColorFilter(cvh.context.resources
98                         .getColor(R.color.control_thumbnail_tint), BlendMode.LUMINOSITY))
99                     cvh.applyRenderInfo(enabled, colorOffset)
100                 }
101             }
102         } else {
103             cvh.title.visibility = View.VISIBLE
104             cvh.subtitle.visibility = View.VISIBLE
105             cvh.status.setShadowLayer(0f, 0f, 0f, shadowColor)
106         }
107 
108         cvh.applyRenderInfo(enabled, colorOffset)
109     }
110 }
111