Nick Rout
2 years ago
parent
68dc1d517a
commit
c12fe1fbe5
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/*
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* Copyright 2022 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.samples.apps.nowinandroid.core.designsystem.component
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import androidx.compose.material3.FilledIconToggleButton
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import androidx.compose.material3.IconButton
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import androidx.compose.material3.IconButtonDefaults
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import androidx.compose.material3.MaterialTheme
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import androidx.compose.runtime.Composable
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import androidx.compose.ui.Modifier
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import androidx.compose.ui.graphics.Color
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import androidx.compose.ui.graphics.Color.Companion
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import androidx.compose.ui.unit.dp
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/**
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* Now in Android toggle button with icon and checked icon content slots. Wraps Material 3
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* [IconButton].
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*
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* @param checked Whether the toggle button is currently checked.
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* @param onCheckedChange Called when the user clicks the toggle button and toggles checked.
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* @param modifier Modifier to be applied to the toggle button.
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* @param enabled Controls the enabled state of the toggle button. When `false`, this toggle button
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* will not be clickable and will appear disabled to accessibility services.
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* @param icon The icon content to show when unchecked.
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* @param checkedIcon The icon content to show when checked.
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*/
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@Composable
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fun NiaIconToggleButton(
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checked: Boolean,
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onCheckedChange: (Boolean) -> Unit,
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modifier: Modifier = Modifier,
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enabled: Boolean = true,
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icon: @Composable () -> Unit,
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checkedIcon: @Composable () -> Unit = icon
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) {
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// TODO: File bug
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// Can't use regular IconToggleButton as it doesn't include a shape (appears square)
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FilledIconToggleButton(
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checked = checked,
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onCheckedChange = onCheckedChange,
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modifier = modifier,
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enabled = enabled,
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colors = IconButtonDefaults.iconToggleButtonColors(
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checkedContainerColor = MaterialTheme.colorScheme.primaryContainer,
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checkedContentColor = MaterialTheme.colorScheme.onPrimaryContainer,
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disabledContainerColor = if (checked) {
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MaterialTheme.colorScheme.onBackground.copy(
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alpha = NiaIconButtonDefaults.DisabledIconButtonContainerAlpha
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)
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} else {
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Color.Transparent
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}
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)
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) {
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if (checked) checkedIcon() else icon()
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}
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}
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/**
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* Now in Android icon button default values.
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*/
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object NiaIconButtonDefaults {
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// TODO: File bug
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// IconToggleButton disabled container alpha not exposed by IconButtonDefaults
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const val DisabledIconButtonContainerAlpha = 0.12f
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}
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@ -1,107 +0,0 @@
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/*
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* Copyright 2022 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.samples.apps.nowinandroid.core.designsystem.component
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import androidx.compose.foundation.layout.Box
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import androidx.compose.foundation.layout.size
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import androidx.compose.foundation.layout.sizeIn
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import androidx.compose.foundation.selection.toggleable
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import androidx.compose.material3.IconButton
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import androidx.compose.material3.LocalContentColor
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import androidx.compose.material3.MaterialTheme
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import androidx.compose.material3.contentColorFor
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import androidx.compose.runtime.Composable
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import androidx.compose.runtime.CompositionLocalProvider
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import androidx.compose.ui.Modifier
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import androidx.compose.ui.draw.drawBehind
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import androidx.compose.ui.graphics.Color
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import androidx.compose.ui.platform.LocalDensity
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import androidx.compose.ui.semantics.Role
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import androidx.compose.ui.unit.Dp
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import androidx.compose.ui.unit.dp
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/**
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* Now in Android toggle button with icon and checked icon content slots. Wraps Material 3
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* [IconButton].
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*
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* @param checked Whether the toggle button is currently checked.
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* @param onCheckedChange Called when the user clicks the toggle button and toggles checked.
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* @param modifier Modifier to be applied to the toggle button.
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* @param enabled Controls the enabled state of the toggle button. When `false`, this toggle button
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* will not be clickable and will appear disabled to accessibility services.
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* @param icon The icon content to show when unchecked.
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* @param checkedIcon The icon content to show when checked.
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* @param size The size of the toggle button.
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* @param iconSize The size of the icon.
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* @param backgroundColor The background color when unchecked.
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* @param checkedBackgroundColor The background color when checked.
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* @param iconColor The icon color when unchecked.
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* @param iconColor The icon color when checked.
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*/
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@Composable
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fun NiaToggleButton(
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checked: Boolean,
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onCheckedChange: (Boolean) -> Unit,
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modifier: Modifier = Modifier,
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enabled: Boolean = true,
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icon: @Composable () -> Unit,
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checkedIcon: @Composable () -> Unit = icon,
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size: Dp = NiaToggleButtonDefaults.ToggleButtonSize,
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iconSize: Dp = NiaToggleButtonDefaults.ToggleButtonIconSize,
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backgroundColor: Color = Color.Transparent,
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checkedBackgroundColor: Color = MaterialTheme.colorScheme.primaryContainer,
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iconColor: Color = contentColorFor(backgroundColor),
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checkedIconColor: Color = contentColorFor(checkedBackgroundColor)
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) {
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val radius = with(LocalDensity.current) { (size / 2).toPx() }
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IconButton(
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onClick = { onCheckedChange(!checked) },
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modifier = modifier
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.size(size)
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.toggleable(value = checked, enabled = enabled, role = Role.Button, onValueChange = {
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onCheckedChange(!checked)
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})
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.drawBehind {
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drawCircle(
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color = if (checked) checkedBackgroundColor else backgroundColor,
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radius = radius
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)
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},
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enabled = enabled,
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content = {
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Box(
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modifier = Modifier.sizeIn(
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maxWidth = iconSize,
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maxHeight = iconSize
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)
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) {
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val contentColor = if (checked) checkedIconColor else iconColor
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CompositionLocalProvider(LocalContentColor provides contentColor) {
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if (checked) checkedIcon() else icon()
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}
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}
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}
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)
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}
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/**
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* Now in Android toggle button default values.
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*/
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object NiaToggleButtonDefaults {
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val ToggleButtonSize = 40.dp
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val ToggleButtonIconSize = 18.dp
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}
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