Theme mxid-based username colors

TODO for follow-up commit: same for mxid-based room colors (maybe with
an extra setting?)

Change-Id: I827bd967e615f20e12f205c0ae5b24a777e90d45

library/ui-styles/src/main/res/values/attrs_sc.xml

@@ -28,6 +28,18 @@
         <attr name="user_color_pl_1" format="color" />
         <attr name="user_color_pl_0" format="color" />
 
+        <attr name="user_color_hash_01" format="color" />
+        <attr name="user_color_hash_02" format="color" />
+        <attr name="user_color_hash_03" format="color" />
+        <attr name="user_color_hash_04" format="color" />
+        <attr name="user_color_hash_05" format="color" />
+        <attr name="user_color_hash_06" format="color" />
+        <attr name="user_color_hash_07" format="color" />
+        <attr name="user_color_hash_08" format="color" />
+        <attr name="room_color_hash_01" format="color" />
+        <attr name="room_color_hash_02" format="color" />
+        <attr name="room_color_hash_03" format="color" />
+
         <attr name="verification_request_background" format="color" />
         <attr name="conference_animation_from" format="color" />
         <attr name="conference_animation_to" format="color" />

library/ui-styles/src/main/res/values/colors_sc.xml

@@ -75,6 +75,14 @@
     <color name="user_color_sc_pl_1">#03A9F4</color>
     <color name="user_color_sc_pl_0">#8bc34a</color>
     -->
+    <color name="user_color_sc_mxid_1">#4189c9</color>
+    <color name="user_color_sc_mxid_2">#aa43a7</color>
+    <color name="user_color_sc_mxid_3">#48a188</color>
+    <color name="user_color_sc_mxid_4">#b3526d</color>
+    <color name="user_color_sc_mxid_5">#be6a31</color>
+    <color name="user_color_sc_mxid_6">#299ea0</color>
+    <color name="user_color_sc_mxid_7">#5c57df</color>
+    <color name="user_color_sc_mxid_8">#69a011</color>
 
     <!-- Code background colors -->
     <color name="code_background_sc">#121212</color>

library/ui-styles/src/main/res/values/theme_dark.xml

@@ -138,6 +138,17 @@
         <item name="backgroundColorLight">@color/element_background_light</item>
         <item name="conference_animation_from">@color/palette_element_green</item>
         <item name="conference_animation_to">@color/join_conference_animated_color</item>
+        <item name="user_color_hash_01">@color/element_name_01</item>
+        <item name="user_color_hash_02">@color/element_name_02</item>
+        <item name="user_color_hash_03">@color/element_name_03</item>
+        <item name="user_color_hash_04">@color/element_name_04</item>
+        <item name="user_color_hash_05">@color/element_name_05</item>
+        <item name="user_color_hash_06">@color/element_name_06</item>
+        <item name="user_color_hash_07">@color/element_name_07</item>
+        <item name="user_color_hash_08">@color/element_name_08</item>
+        <item name="room_color_hash_01">@color/element_room_01</item>
+        <item name="room_color_hash_02">@color/element_room_02</item>
+        <item name="room_color_hash_03">@color/element_room_03</item>
 
         <item name="android:statusBarColor">@color/android_status_bar_background_dark</item>
         <item name="android:navigationBarColor">@color/android_navigation_bar_background_dark</item>

library/ui-styles/src/main/res/values/theme_light.xml

@@ -138,6 +138,17 @@
         <item name="backgroundColorLight">@color/element_background_light</item>
         <item name="conference_animation_from">@color/palette_element_green</item>
         <item name="conference_animation_to">@color/join_conference_animated_color</item>
+        <item name="user_color_hash_01">@color/element_name_01</item>
+        <item name="user_color_hash_02">@color/element_name_02</item>
+        <item name="user_color_hash_03">@color/element_name_03</item>
+        <item name="user_color_hash_04">@color/element_name_04</item>
+        <item name="user_color_hash_05">@color/element_name_05</item>
+        <item name="user_color_hash_06">@color/element_name_06</item>
+        <item name="user_color_hash_07">@color/element_name_07</item>
+        <item name="user_color_hash_08">@color/element_name_08</item>
+        <item name="room_color_hash_01">@color/element_room_01</item>
+        <item name="room_color_hash_02">@color/element_room_02</item>
+        <item name="room_color_hash_03">@color/element_room_03</item>
 
         <!-- Use dark color, to have enough contrast with icons color. windowLightStatusBar is only available in API 23+ -->
         <item name="android:statusBarColor">@color/android_status_bar_background_dark</item>

library/ui-styles/src/main/res/values/theme_sc.xml

@@ -100,6 +100,14 @@
         <item name="backgroundColorLight">@color/background_sc_light</item>
         <item name="conference_animation_from">?colorAccent</item>
         <item name="conference_animation_to">?colorAccentPale</item>
+        <item name="user_color_hash_01">@color/user_color_sc_mxid_1</item>
+        <item name="user_color_hash_02">@color/user_color_sc_mxid_2</item>
+        <item name="user_color_hash_03">@color/user_color_sc_mxid_3</item>
+        <item name="user_color_hash_04">@color/user_color_sc_mxid_4</item>
+        <item name="user_color_hash_05">@color/user_color_sc_mxid_5</item>
+        <item name="user_color_hash_06">@color/user_color_sc_mxid_6</item>
+        <item name="user_color_hash_07">@color/user_color_sc_mxid_7</item>
+        <item name="user_color_hash_08">@color/user_color_sc_mxid_8</item>
 
         <item name="android:statusBarColor">@color/background_black_sc</item>
         <item name="android:navigationBarColor">@color/background_black_sc</item>

library/ui-styles/src/main/res/values/theme_sc_light.xml

@@ -99,6 +99,14 @@
         <item name="backgroundColorLight">@color/background_sc_light</item>
         <item name="conference_animation_from">?colorAccent</item>
         <item name="conference_animation_to">?colorAccentPale</item>
+        <item name="user_color_hash_01">@color/user_color_sc_mxid_1</item>
+        <item name="user_color_hash_02">@color/user_color_sc_mxid_2</item>
+        <item name="user_color_hash_03">@color/user_color_sc_mxid_3</item>
+        <item name="user_color_hash_04">@color/user_color_sc_mxid_4</item>
+        <item name="user_color_hash_05">@color/user_color_sc_mxid_5</item>
+        <item name="user_color_hash_06">@color/user_color_sc_mxid_6</item>
+        <item name="user_color_hash_07">@color/user_color_sc_mxid_7</item>
+        <item name="user_color_hash_08">@color/user_color_sc_mxid_8</item>
 
         <item name="android:statusBarColor">@color/background_black_sc</item>
         <item name="android:navigationBarColor">@color/background_black_sc</item>

vector/src/main/java/im/vector/app/features/home/room/detail/timeline/helper/MatrixItemColorProvider.kt

@@ -16,13 +16,13 @@
 
 package im.vector.app.features.home.room.detail.timeline.helper
 
+import androidx.annotation.AttrRes
 import androidx.annotation.ColorInt
 import androidx.annotation.ColorRes
 import androidx.annotation.VisibleForTesting
 import im.vector.app.R
 import im.vector.app.core.resources.ColorProvider
 import im.vector.app.features.settings.VectorPreferences
-import im.vector.app.features.themes.ThemeUtils
 import org.matrix.android.sdk.api.util.MatrixItem
 import javax.inject.Inject
 import javax.inject.Singleton
@@ -55,10 +55,10 @@ class MatrixItemColorProvider @Inject constructor(
             }
             USER_COLORING_FROM_ID -> {
                 return cache.getOrPut(matrixItem.id) {
-                    colorProvider.getColor(
+                    colorProvider.getColorFromAttribute(
                             when (matrixItem) {
-                                is MatrixItem.UserItem -> getColorFromUserId(matrixItem.id)
+                                is MatrixItem.UserItem -> getColorAttrFromUserId(matrixItem.id)
-                                else                   -> getColorFromRoomId(matrixItem.id)
+                                else                   -> getColorAttrFromRoomId(matrixItem.id)
                             }
                     )
                 }
@@ -69,9 +69,37 @@ class MatrixItemColorProvider @Inject constructor(
         }
     }
 
+    @AttrRes
+    fun getColorAttrFromUserId(userId: String?): Int {
+        var hash = 0
+
+        userId?.toList()?.map { chr -> hash = (hash shl 5) - hash + chr.code }
+
+        return when (abs(hash) % 8) {
+            1    -> R.attr.user_color_hash_02
+            2    -> R.attr.user_color_hash_03
+            3    -> R.attr.user_color_hash_04
+            4    -> R.attr.user_color_hash_05
+            5    -> R.attr.user_color_hash_06
+            6    -> R.attr.user_color_hash_07
+            7    -> R.attr.user_color_hash_08
+            else -> R.attr.user_color_hash_01
+        }
+    }
+
+    @AttrRes
+    private fun getColorAttrFromRoomId(roomId: String?): Int {
+        return when ((roomId?.toList()?.sumOf { it.code } ?: 0) % 3) {
+            1    -> R.attr.room_color_hash_02
+            2    -> R.attr.room_color_hash_03
+            else -> R.attr.room_color_hash_01
+        }
+    }
+
     companion object {
         @ColorRes
         @VisibleForTesting
+        @Deprecated("Use getColorAttrFromUserId")
         fun getColorFromUserId(userId: String?): Int {
             var hash = 0
 
@@ -90,6 +118,7 @@ class MatrixItemColorProvider @Inject constructor(
         }
 
         @ColorRes
+        @Deprecated("Use getColorAttrFromRoomId")
         private fun getColorFromRoomId(roomId: String?): Int {
             return when ((roomId?.toList()?.sumOf { it.code } ?: 0) % 3) {
                 1    -> R.color.element_room_02