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Button.kt
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Button.kt
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/*
* Copyright 2020 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.example.jetsnack.ui.components
import androidx.compose.foundation.BorderStroke
import androidx.compose.foundation.Box
import androidx.compose.foundation.ContentColorAmbient
import androidx.compose.foundation.ContentGravity
import androidx.compose.foundation.ProvideTextStyle
import androidx.compose.foundation.border
import androidx.compose.foundation.clickable
import androidx.compose.foundation.layout.PaddingValues
import androidx.compose.foundation.layout.preferredSizeIn
import androidx.compose.foundation.shape.RoundedCornerShape
import androidx.compose.material.ButtonConstants
import androidx.compose.material.MaterialTheme
import androidx.compose.runtime.Composable
import androidx.compose.runtime.Providers
import androidx.compose.ui.Modifier
import androidx.compose.ui.draw.clip
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.graphics.Shape
import androidx.compose.ui.semantics.semantics
import androidx.compose.ui.unit.dp
import com.example.jetsnack.ui.theme.JetsnackTheme
@Composable
fun JetsnackButton(
onClick: () -> Unit,
modifier: Modifier = Modifier,
enabled: Boolean = true,
shape: Shape = ButtonShape,
border: BorderStroke? = null,
backgroundGradient: List<Color> = JetsnackTheme.colors.interactivePrimary,
disabledBackgroundGradient: List<Color> = JetsnackTheme.colors.interactiveSecondary,
contentColor: Color = JetsnackTheme.colors.textInteractive,
disabledContentColor: Color = JetsnackTheme.colors.textHelp,
padding: PaddingValues = ButtonConstants.DefaultContentPadding,
text: @Composable () -> Unit
) {
Providers(ContentColorAmbient provides if (enabled) contentColor else disabledContentColor) {
ProvideTextStyle(MaterialTheme.typography.button) {
Box(
modifier = modifier
// Todo move to ButtonConstants.DefaultMinWidth / DefaultMinHeight
.preferredSizeIn(minWidth = 64.dp, minHeight = 36.dp)
.clip(shape)
.horizontalGradientBackground(
colors = if (enabled) backgroundGradient else disabledBackgroundGradient
)
.then(if (border != null) Modifier.border(border, shape) else Modifier)
.semantics(mergeAllDescendants = true, properties = { })
.clickable(onClick = onClick, enabled = enabled),
paddingStart = padding.start,
paddingTop = padding.top,
paddingEnd = padding.end,
paddingBottom = padding.bottom,
gravity = ContentGravity.Center,
children = text
)
}
}
}
private val ButtonShape = RoundedCornerShape(percent = 50)