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135 lines
3.8 KiB
Kotlin
135 lines
3.8 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.library
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import android.content.Context
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import android.util.AttributeSet
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import android.view.LayoutInflater
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import android.widget.ImageButton
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import android.widget.ImageView
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import android.widget.TextView
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import androidx.constraintlayout.widget.ConstraintLayout
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import androidx.core.view.isVisible
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import kotlinx.android.synthetic.main.library_site_item.view.*
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import mozilla.components.concept.menu.MenuController
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import mozilla.components.concept.menu.Orientation
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import org.mozilla.fenix.R
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import org.mozilla.fenix.ext.components
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import org.mozilla.fenix.ext.increaseTapArea
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import org.mozilla.fenix.ext.loadIntoView
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/**
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* Interactor for items that can be selected on the bookmarks and history screens.
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*/
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interface SelectionInteractor<T> {
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/**
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* Called when an item is tapped to open it.
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* @param item the tapped item to open.
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*/
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fun open(item: T)
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/**
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* Called when an item is long pressed and selection mode is started,
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* or when selection mode has already started an an item is tapped.
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* @param item the item to select.
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*/
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fun select(item: T)
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/**
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* Called when a selected item is tapped in selection mode and should no longer be selected.
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* @param item the item to deselect.
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*/
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fun deselect(item: T)
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}
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interface SelectionHolder<T> {
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val selectedItems: Set<T>
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}
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class LibrarySiteItemView @JvmOverloads constructor(
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context: Context,
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attrs: AttributeSet? = null,
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defStyleAttr: Int = 0,
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defStyleRes: Int = 0
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) : ConstraintLayout(context, attrs, defStyleAttr, defStyleRes) {
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val titleView: TextView get() = title
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val urlView: TextView get() = url
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val iconView: ImageView get() = favicon
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val overflowView: ImageButton get() = overflow_menu
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init {
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LayoutInflater.from(context).inflate(R.layout.library_site_item, this, true)
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overflow_menu.increaseTapArea(OVERFLOW_EXTRA_DIPS)
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}
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/**
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* Change visibility of parts of this view based on what type of item is being represented.
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*/
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fun displayAs(mode: ItemType) {
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url.isVisible = mode == ItemType.SITE
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}
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/**
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* Changes the icon to show a check mark if [isSelected]
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*/
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fun changeSelected(isSelected: Boolean) {
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icon.displayedChild = if (isSelected) 1 else 0
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}
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fun loadFavicon(url: String) {
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context.components.core.icons.loadIntoView(favicon, url)
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}
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fun attachMenu(menuController: MenuController) {
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overflow_menu.setOnClickListener {
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menuController.show(
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anchor = it,
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orientation = Orientation.DOWN
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)
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}
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}
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fun <T> setSelectionInteractor(item: T, holder: SelectionHolder<T>, interactor: SelectionInteractor<T>) {
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setOnClickListener {
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val selected = holder.selectedItems
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when {
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selected.isEmpty() -> interactor.open(item)
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item in selected -> interactor.deselect(item)
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else -> interactor.select(item)
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}
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}
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setOnLongClickListener {
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if (holder.selectedItems.isEmpty()) {
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interactor.select(item)
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true
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} else {
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false
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}
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}
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favicon.setOnClickListener {
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if (item in holder.selectedItems) {
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interactor.deselect(item)
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} else {
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interactor.select(item)
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}
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}
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}
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enum class ItemType {
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SITE, FOLDER;
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}
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companion object {
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private const val OVERFLOW_EXTRA_DIPS = 16
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}
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}
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