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198 lines
7.0 KiB
Kotlin
198 lines
7.0 KiB
Kotlin
/* 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
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import androidx.compose.foundation.background
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import androidx.compose.foundation.layout.Box
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import androidx.compose.foundation.layout.Spacer
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import androidx.compose.foundation.layout.fillMaxHeight
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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.foundation.selection.selectable
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import androidx.compose.foundation.shape.RoundedCornerShape
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import androidx.compose.material.DropdownMenu
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import androidx.compose.material.DropdownMenuItem
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import androidx.compose.material.Icon
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import androidx.compose.material.MaterialTheme
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import androidx.compose.material.Text
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import androidx.compose.runtime.Composable
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import androidx.compose.runtime.DisposableEffect
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import androidx.compose.runtime.getValue
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import androidx.compose.runtime.mutableStateOf
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import androidx.compose.runtime.remember
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import androidx.compose.runtime.setValue
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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.Color
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import androidx.compose.ui.platform.LocalConfiguration
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import androidx.compose.ui.platform.testTag
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import androidx.compose.ui.res.painterResource
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import androidx.compose.ui.semantics.Role
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import androidx.compose.ui.unit.DpOffset
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import androidx.compose.ui.unit.dp
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import org.mozilla.fenix.R
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import org.mozilla.fenix.compose.annotation.LightDarkPreview
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import org.mozilla.fenix.compose.button.PrimaryButton
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import org.mozilla.fenix.theme.FirefoxTheme
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/**
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* Root popup action dropdown menu.
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*
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* @param menuItems List of items to be displayed in the menu.
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* @param showMenu Whether or not the menu is currently displayed to the user.
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* @param cornerShape Shape to apply to the corners of the dropdown.
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* @param onDismissRequest Invoked when user dismisses the menu or on orientation changes.
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* @param modifier Modifier to be applied to the menu.
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* @param offset Offset to be added to the position of the menu.
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*/
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@Composable
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private fun Menu(
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menuItems: List<MenuItem>,
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showMenu: Boolean,
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cornerShape: RoundedCornerShape,
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onDismissRequest: () -> Unit,
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modifier: Modifier = Modifier,
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offset: DpOffset = DpOffset.Zero,
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) {
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DisposableEffect(LocalConfiguration.current.orientation) {
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onDispose { onDismissRequest() }
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}
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MaterialTheme(shapes = MaterialTheme.shapes.copy(medium = cornerShape)) {
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DropdownMenu(
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expanded = showMenu && menuItems.isNotEmpty(),
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onDismissRequest = onDismissRequest,
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offset = offset,
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modifier = Modifier
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.background(color = FirefoxTheme.colors.layer2)
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.then(modifier),
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) {
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val hasCheckedItems = menuItems.any { it.isChecked }
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for (item in menuItems) {
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val checkmarkModifier = if (hasCheckedItems) {
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Modifier.selectable(
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selected = item.isChecked,
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role = Role.Button,
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onClick = {
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onDismissRequest()
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item.onClick()
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},
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)
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} else {
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Modifier
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}
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DropdownMenuItem(
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modifier = Modifier
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.testTag(item.testTag)
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.align(alignment = Alignment.CenterHorizontally)
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.then(checkmarkModifier),
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onClick = {
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onDismissRequest()
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item.onClick()
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},
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) {
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if (hasCheckedItems) {
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if (item.isChecked) {
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Icon(
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painter = painterResource(id = R.drawable.mozac_ic_checkmark_24),
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modifier = Modifier
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.size(24.dp),
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contentDescription = null,
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tint = FirefoxTheme.colors.iconPrimary,
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)
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} else {
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Spacer(
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modifier = Modifier
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.size(24.dp),
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)
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}
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Spacer(modifier = Modifier.width(12.dp))
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}
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Text(
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text = item.title,
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color = item.color ?: FirefoxTheme.colors.textPrimary,
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maxLines = 1,
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style = FirefoxTheme.typography.subtitle1,
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modifier = Modifier
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.fillMaxHeight()
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.align(Alignment.CenterVertically),
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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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/**
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* Dropdown menu for presenting context-specific actions.
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*
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* @param menuItems List of items to be displayed in the menu.
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* @param showMenu Whether or not the menu is currently displayed to the user.
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* @param onDismissRequest Invoked when user dismisses the menu or on orientation changes.
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* @param modifier Modifier to be applied to the menu.
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* @param offset Offset to be added to the position of the menu.
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*/
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@Composable
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fun ContextualMenu(
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menuItems: List<MenuItem>,
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showMenu: Boolean,
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onDismissRequest: () -> Unit,
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modifier: Modifier = Modifier,
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offset: DpOffset = DpOffset.Zero,
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) {
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Menu(
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menuItems = menuItems,
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showMenu = showMenu,
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cornerShape = RoundedCornerShape(size = 5.dp),
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onDismissRequest = onDismissRequest,
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modifier = modifier,
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offset = offset,
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)
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}
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/**
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* Represents a text item from the dropdown menu.
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*
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* @property title Text the item should display.
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* @property color Color used to display the text.
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* @property isChecked Whether a checkmark should appear next to the text.
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* @property testTag Tag used to identify the item in automated tests.
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* @property onClick Callback to be called when the item is clicked.
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*/
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data class MenuItem(
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val title: String,
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val color: Color? = null,
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val isChecked: Boolean = false,
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val testTag: String = "",
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val onClick: () -> Unit,
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)
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@LightDarkPreview
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@Composable
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private fun ContextualMenuPreview() {
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var showMenu by remember { mutableStateOf(false) }
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FirefoxTheme {
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Box(modifier = Modifier.size(400.dp)) {
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PrimaryButton(text = "Show menu") {
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showMenu = true
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}
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ContextualMenu(
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menuItems = listOf(
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MenuItem("Rename") {},
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MenuItem("Share") {},
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MenuItem("Remove") {},
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),
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showMenu = showMenu,
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onDismissRequest = { showMenu = false },
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)
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}
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}
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}
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