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For #24338 - Make a reusable list item Composable
This commit is contained in:
Noah Bond
mergify[bot]
parent
aff4c03d53
commit
6df5bd7d74
338
app/src/main/java/org/mozilla/fenix/compose/list/ListItem.kt
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338
app/src/main/java/org/mozilla/fenix/compose/list/ListItem.kt
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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package org.mozilla.fenix.compose.list
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import android.content.res.Configuration
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import androidx.compose.foundation.background
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import androidx.compose.foundation.clickable
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import androidx.compose.foundation.layout.Box
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import androidx.compose.foundation.layout.Column
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import androidx.compose.foundation.layout.Row
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import androidx.compose.foundation.layout.RowScope
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import androidx.compose.foundation.layout.Spacer
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import androidx.compose.foundation.layout.defaultMinSize
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import androidx.compose.foundation.layout.padding
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import androidx.compose.foundation.layout.size
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import androidx.compose.foundation.layout.width
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import androidx.compose.material.Icon
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import androidx.compose.runtime.Composable
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import androidx.compose.ui.Alignment
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import androidx.compose.ui.Modifier
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import androidx.compose.ui.graphics.painter.Painter
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import androidx.compose.ui.res.painterResource
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import androidx.compose.ui.tooling.preview.Preview
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import androidx.compose.ui.unit.dp
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import androidx.compose.ui.unit.sp
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import org.mozilla.fenix.R
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import org.mozilla.fenix.compose.Favicon
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import org.mozilla.fenix.compose.PrimaryText
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import org.mozilla.fenix.compose.SecondaryText
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import org.mozilla.fenix.theme.FirefoxTheme
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private val LIST_ITEM_HEIGHT = 56.dp
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private val ICON_SIZE = 24.dp
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/**
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* List item used to display a label with an optional description text and
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* an optional, interactable icon at the end.
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*
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* @param label The label in the list item.
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* @param description An optional description text below the label.
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* @param onClick Called when the user clicks on the item.
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* @param iconPainter [Painter] used to display a [ListItemIcon] after the list item.
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* @param iconDescription Content description of the icon.
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* @param onIconClick Called when the user clicks on the icon.
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*/
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@Composable
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fun TextListItem(
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label: String,
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description: String? = null,
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onClick: (() -> Unit)? = null,
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iconPainter: Painter? = null,
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iconDescription: String? = null,
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onIconClick: (() -> Unit)? = null,
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) {
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ListItem(
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label = label,
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description = description,
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onClick = onClick,
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afterListAction = {
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iconPainter?.let {
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ListItemIcon(
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painter = iconPainter,
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iconDescription = iconDescription,
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onClick = onIconClick,
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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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* List item used to display a label and a [Favicon] with an optional description text and
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* an optional, interactable icon at the end.
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*
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* @param label The label in the list item.
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* @param description An optional description text below the label.
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* @param onClick Called when the user clicks on the item.
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* @param url Website [url] for which the favicon will be shown.
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* @param iconPainter [Painter] used to display a [ListItemIcon] after the list item.
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* @param iconDescription Content description of the icon.
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* @param onIconClick Called when the user clicks on the icon.
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*/
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@Composable
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fun FaviconListItem(
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label: String,
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description: String? = null,
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onClick: (() -> Unit)? = null,
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url: String,
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iconPainter: Painter? = null,
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iconDescription: String? = null,
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onIconClick: (() -> Unit)? = null,
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) {
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ListItem(
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label = label,
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description = description,
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onClick = onClick,
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beforeListAction = {
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Spacer(modifier = Modifier.width(16.dp))
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Favicon(
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url = url,
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size = ICON_SIZE,
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)
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Spacer(modifier = Modifier.width(16.dp))
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},
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afterListAction = {
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iconPainter?.let {
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ListItemIcon(
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painter = iconPainter,
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iconDescription = iconDescription,
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onClick = onIconClick,
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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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* List item used to display a label and an icon at the beginning with an optional description
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* text and an optional, interactable icon at the end.
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*
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* @param label The label in the list item.
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* @param description An optional description text below the label.
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* @param onClick Called when the user clicks on the item.
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* @param beforeIconPainter [Painter] used to display a [ListItemIcon] before the list item.
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* @param beforeIconDescription Content description of the icon.
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* @param afterIconPainter [Painter] used to display a [ListItemIcon] after the list item.
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* @param afterIconDescription Content description of the icon.
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* @param onAfterIconClick Called when the user clicks on the icon.
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*/
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@Composable
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fun IconListItem(
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label: String,
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description: String? = null,
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onClick: (() -> Unit)? = null,
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beforeIconPainter: Painter,
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beforeIconDescription: String? = null,
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afterIconPainter: Painter? = null,
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afterIconDescription: String? = null,
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onAfterIconClick: (() -> Unit)? = null,
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) {
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ListItem(
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label = label,
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description = description,
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onClick = onClick,
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beforeListAction = {
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ListItemIcon(
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painter = beforeIconPainter,
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iconDescription = beforeIconDescription,
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onClick = null,
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)
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},
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afterListAction = {
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afterIconPainter?.let {
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ListItemIcon(
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painter = afterIconPainter,
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iconDescription = afterIconDescription,
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onClick = onAfterIconClick,
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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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* Base list item used to display a label with an optional description text and
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* the flexibility to add custom UI to either end of the item.
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*
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* @param label The label in the list item.
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* @param description An optional description text below the label.
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* @param onClick Called when the user clicks on the item.
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* @param beforeListAction Optional Composable for adding UI before the list item.
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* @param afterListAction Optional Composable for adding UI to the end of the list item.
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*/
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@Composable
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private fun ListItem(
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label: String,
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description: String? = null,
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onClick: (() -> Unit)? = null,
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beforeListAction: @Composable RowScope.() -> Unit = {},
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afterListAction: @Composable RowScope.() -> Unit = {},
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) {
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Row(
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modifier = when (onClick != null) {
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true -> Modifier.clickable { onClick() }
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false -> Modifier
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}.then(
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Modifier.defaultMinSize(minHeight = LIST_ITEM_HEIGHT)
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),
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verticalAlignment = Alignment.CenterVertically,
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) {
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beforeListAction()
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Column(
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modifier = Modifier
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.padding(horizontal = 16.dp, vertical = 6.dp)
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.weight(1f),
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) {
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PrimaryText(
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text = label,
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fontSize = 16.sp,
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maxLines = 1,
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)
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description?.let {
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SecondaryText(
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text = description,
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fontSize = 14.sp,
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maxLines = 1,
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)
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}
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}
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afterListAction()
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}
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}
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/**
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* Base Icon Composable used to display a [Painter] in a [ListItem].
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*
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* @param painter [Painter] used to display the icon.
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* @param iconDescription Content description of the icon.
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* @param onClick Called when the user clicks on the icon.
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*/
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@Composable
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private fun ListItemIcon(
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painter: Painter,
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iconDescription: String? = null,
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onClick: (() -> Unit)? = null,
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) {
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Box(
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modifier = when (onClick != null) {
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true -> Modifier.clickable { onClick() }
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false -> Modifier
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}.then(
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Modifier
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.padding(horizontal = 16.dp)
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.defaultMinSize(minHeight = LIST_ITEM_HEIGHT),
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),
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contentAlignment = Alignment.Center,
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) {
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Icon(
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painter = painter,
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contentDescription = iconDescription,
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modifier = Modifier.size(ICON_SIZE),
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tint = FirefoxTheme.colors.iconPrimary,
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)
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}
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}
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@Composable
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@Preview(name = "TextListItem", uiMode = Configuration.UI_MODE_NIGHT_YES)
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private fun TextListItemPreview() {
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FirefoxTheme {
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Box(Modifier.background(FirefoxTheme.colors.layer1)) {
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TextListItem(label = "Label only")
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}
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}
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}
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@Composable
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@Preview(name = "TextListItem with a description", uiMode = Configuration.UI_MODE_NIGHT_YES)
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private fun TextListItemWithDescriptionPreview() {
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FirefoxTheme {
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Box(Modifier.background(FirefoxTheme.colors.layer1)) {
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TextListItem(
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label = "Label + description",
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description = "Description text"
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)
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}
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}
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}
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@Composable
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@Preview(name = "TextListItem with a right icon", uiMode = Configuration.UI_MODE_NIGHT_YES)
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private fun TextListItemWithIconPreview() {
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FirefoxTheme {
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Box(Modifier.background(FirefoxTheme.colors.layer1)) {
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TextListItem(
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label = "Label + right icon",
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iconPainter = painterResource(R.drawable.ic_menu),
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iconDescription = "click me",
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)
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}
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}
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}
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@Composable
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@Preview(name = "IconListItem", uiMode = Configuration.UI_MODE_NIGHT_YES)
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private fun IconListItemPreview() {
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FirefoxTheme {
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Box(Modifier.background(FirefoxTheme.colors.layer1)) {
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IconListItem(
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label = "Left icon list item",
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beforeIconPainter = painterResource(R.drawable.ic_folder_icon),
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beforeIconDescription = "click me",
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)
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}
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}
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}
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@Composable
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@Preview(name = "IconListItem with an interactable right icon", uiMode = Configuration.UI_MODE_NIGHT_YES)
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private fun IconListItemWithRightIconPreview() {
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FirefoxTheme {
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Box(Modifier.background(FirefoxTheme.colors.layer1)) {
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IconListItem(
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label = "Left icon list item + right icon",
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beforeIconPainter = painterResource(R.drawable.ic_folder_icon),
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beforeIconDescription = null,
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afterIconPainter = painterResource(R.drawable.ic_menu),
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afterIconDescription = "click me",
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onAfterIconClick = { println("icon click") },
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)
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}
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}
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}
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@Composable
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@Preview(name = "FaviconListItem with a right icon and onClicks", uiMode = Configuration.UI_MODE_NIGHT_YES)
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private fun FaviconListItemPreview() {
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FirefoxTheme {
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Box(Modifier.background(FirefoxTheme.colors.layer1)) {
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FaviconListItem(
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label = "Favicon + right icon + clicks",
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description = "Description text",
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onClick = { println("list item click") },
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url = "",
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iconPainter = painterResource(R.drawable.ic_menu),
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onIconClick = { println("icon click") },
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)
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}
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}
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}
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