Initial project
This commit is contained in:
Timi
473
src/main/java/com/imyeyu/fx/ui/components/FileTreeView.java
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473
src/main/java/com/imyeyu/fx/ui/components/FileTreeView.java
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package com.imyeyu.fx.ui.components;
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import com.imyeyu.fx.ObservableUtils;
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import com.imyeyu.fx.icon.TimiFXIcon;
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import com.imyeyu.fx.task.RunAsync;
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import com.imyeyu.fx.ui.TimiFXUI;
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import com.imyeyu.fx.ui.components.alert.AlertButton;
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import com.imyeyu.fx.ui.components.alert.AlertConfirm;
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import com.imyeyu.fx.ui.components.alert.AlertTextField;
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import com.imyeyu.fx.ui.components.alert.AlertTips;
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import com.imyeyu.io.IO;
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import com.imyeyu.java.TimiJava;
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import com.imyeyu.java.bean.CallbackArgReturn;
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import com.imyeyu.utils.OS;
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import javafx.application.Platform;
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import javafx.beans.binding.Bindings;
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import javafx.beans.binding.BooleanBinding;
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import javafx.beans.property.BooleanProperty;
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import javafx.beans.property.SimpleBooleanProperty;
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import javafx.collections.FXCollections;
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import javafx.collections.ObservableList;
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import javafx.scene.control.ContextMenu;
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import javafx.scene.control.Label;
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import javafx.scene.control.MenuItem;
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import javafx.scene.control.TreeCell;
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import javafx.scene.control.TreeItem;
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import javafx.scene.input.KeyCode;
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import javafx.scene.input.KeyEvent;
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import javafx.scene.text.Text;
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import javax.naming.NoPermissionException;
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import java.io.File;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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/**
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* 文件目录树组件
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*
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* @author 夜雨
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* @since 2022-05-26 14:32
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*/
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public class FileTreeView extends XTreeView<File> implements TimiFXUI.Colorful {
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/** 正在查找节点监听 */
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protected final BooleanBinding findingItem;
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/** 显示隐藏文件监听 */
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protected final BooleanProperty showHide;
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/** 选择队列，左进左出，右边为深度路径，不为空时表正在查找节点 */
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protected final ObservableList<File> selectDeque = FXCollections.synchronizedObservableList(FXCollections.observableArrayList());
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/** 过滤列表，返回 true 时创建该节点 */
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protected final List<CallbackArgReturn<File, Boolean>> itemFilters;
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/** 默认构造器 */
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public FileTreeView() {
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showHide = new SimpleBooleanProperty(false);
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itemFilters = new ArrayList<>();
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findingItem = Bindings.isNotEmpty(selectDeque);
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disableProperty().bind(findingItem);
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setCellFactory(cell -> new TreeCell<>() {
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final Label loading = new Label(TimiFXUI.MULTILINGUAL.text("loading"));
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final Text iconFile = TimiFXIcon.fromName("FILE");
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final Text iconDirectory = TimiFXIcon.fromName("FOLDER");
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{
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iconFile.fillProperty().bind(Bindings.when(FileTreeView.this.focusedProperty().and(selectedProperty())).then(GRAY_WHITE).otherwise(GRAY));
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iconDirectory.fillProperty().bind(Bindings.when(FileTreeView.this.focusedProperty().and(selectedProperty())).then(GRAY_WHITE).otherwise(GRAY));
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}
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@Override
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protected void updateItem(File file, boolean empty) {
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super.updateItem(file, empty);
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if (empty) {
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setText("");
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setGraphic(null);
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} else {
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if (file == null) {
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setGraphic(loading);
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} else {
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if (TimiJava.isEmpty(file.getName())) {
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setText(file.toString());
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} else {
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setText(file.getName());
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}
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setGraphic(file.isFile() ? iconFile : iconDirectory);
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}
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}
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}
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});
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// 右键菜单
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MenuItem menuMkdir = new MenuItem(TimiFXUI.MULTILINGUAL.text("file.mkdir"), TimiFXIcon.fromName("FOLDER_ADD"));
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MenuItem menuRename = new MenuItem(TimiFXUI.MULTILINGUAL.text("rename"));
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MenuItem menuRefresh = new MenuItem(TimiFXUI.MULTILINGUAL.text("refresh"), TimiFXIcon.fromName("REFRESH"));
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MenuItem menuDestroy = new MenuItem(TimiFXUI.MULTILINGUAL.text("delete"), TimiFXIcon.fromName("FAIL", RED));
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setContextMenu(new ContextMenu(menuMkdir, menuRename, menuRefresh, TimiFXUI.sep(), menuDestroy));
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// ---------- 事件 ----------
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// 新建文件夹
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menuMkdir.disableProperty().bind(menuRefresh.disableProperty());
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menuMkdir.setOnAction(e -> mkdir(getSelectionModel().getSelectedItem()));
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// 重命名
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menuRename.disableProperty().bind(ObservableUtils.onlyOnceInList(getSelectionModel().getSelectedItems()).not());
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menuRename.setOnAction(e -> rename(getSelectionModel().getSelectedItem()));
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// 刷新
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menuRefresh.disableProperty().bind(Bindings.createBooleanBinding(() -> {
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List<TreeItem<File>> items = getSelectionModel().getSelectedItems();
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// 没有选择、多选、选的不是文件时禁用
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return items == null || items.size() != 1 || items.get(0).getValue().isFile();
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}, getSelectionModel().selectedItemProperty()));
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menuRefresh.setOnAction(e -> refreshItem(getSelectionModel().getSelectedItem()));
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// 删除
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List<File> roots = List.of(File.listRoots());
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menuDestroy.disableProperty().bind(Bindings.createBooleanBinding(() -> {
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ObservableList<TreeItem<File>> items = getSelectionModel().getSelectedItems();
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if (items.isEmpty()) {
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return true;
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}
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for (int i = 0; i < items.size(); i++) {
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if (roots.contains(items.get(i).getValue())) {
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return true;
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}
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}
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return false;
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}, getSelectionModel().getSelectedItems()));
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menuDestroy.setOnAction(e -> destroy(getSelectionModel().getSelectedItems()));
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// 快捷键
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addEventFilter(KeyEvent.KEY_RELEASED, e -> {
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boolean control = e.isControlDown();
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boolean shift = e.isShiftDown();
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boolean alt = e.isAltDown();
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KeyCode code = e.getCode();
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if (!control && !shift && !alt) {
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switch (code) {
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case F2 -> menuRename.fire();
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case F5 -> menuRefresh.fire();
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case DELETE -> menuDestroy.fire();
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}
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}
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if (control && shift && !alt && code == KeyCode.N) {
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menuMkdir.fire();
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}
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});
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// ---------- 就绪 ----------
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// 过滤隐藏文件
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CallbackArgReturn<File, Boolean> filterHidden = file -> !file.isHidden();
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itemFilters.add(filterHidden);
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showHide.addListener((obs, o, n) -> {
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if (isShowHide()) {
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itemFilters.remove(filterHidden);
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} else {
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itemFilters.add(filterHidden);
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}
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});
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// 默认磁盘根目录
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for (int i = 0; i < roots.size(); i++) {
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getRoots().add(new FileItem(roots.get(i)));
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}
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}
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/**
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* 创建文件夹
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*
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* @param base 基于文件夹
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*/
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public void mkdir(TreeItem<File> base) {
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if (base == null) {
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return;
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}
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AlertTextField alert = new AlertTextField(TimiFXUI.MULTILINGUAL.text("file.mkdir"));
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alert.setTips(TimiFXUI.MULTILINGUAL.text("name"));
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alert.setOnActionEvent(action -> {
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if (action == AlertButton.Action.CONFIRM) {
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try {
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IO.dir(IO.fitPath(base.getValue().getAbsolutePath()) + alert.getText());
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refreshItem(getSelectionModel().getSelectedItem());
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} catch (NoPermissionException ex) {
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ex.printStackTrace();
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}
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}
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return true;
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});
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alert.autoSize().showRelativeCenter(getScene().getWindow());
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}
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/**
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* 重命名
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*
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* @param file 文件或文件夹
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*/
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public void rename(TreeItem<File> file) {
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if (file == null) {
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return;
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}
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AlertTextField alert = new AlertTextField(TimiFXUI.MULTILINGUAL.text("file.rename"));
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alert.setTips(TimiFXUI.MULTILINGUAL.text("name"));
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alert.setOnActionEvent(action -> {
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if (action == AlertButton.Action.CONFIRM) {
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IO.rename(getSelectionModel().getSelectedItem().getValue(), alert.getText());
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refreshItem(getSelectionModel().getSelectedItem().getParent());
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}
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return true;
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});
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alert.autoSize().showRelativeCenter(getScene().getWindow());
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}
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/**
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* 销毁文件
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*
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* @param files 文件节点列表
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*/
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public void destroy(List<TreeItem<File>> files) {
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if (TimiJava.isEmpty(files)) {
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return;
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}
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new AlertConfirm(TimiFXUI.MULTILINGUAL.text("file.destroy")) {
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@Override
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protected void onConfirm() {
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new RunAsync<TreeItem<File>>() {
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@Override
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protected TreeItem<File> call() {
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List<File> items = files.stream().map(TreeItem::getValue).toList();
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for (int i = 0; i < items.size(); i++) {
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IO.destroy(items.get(i));
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}
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// 查找最高级节点刷新
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int l = Integer.MAX_VALUE;
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TreeItem<File> item = null;
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for (int i = 0, j; i < items.size(); i++) {
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j = getTreeItemLevel(files.get(i));
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if (j < l) {
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l = j;
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item = files.get(i);
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if (item.getParent() != null) {
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item = item.getParent();
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}
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}
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}
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return item;
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}
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@Override
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protected void onFinish(TreeItem<File> item) {
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if (item != null) {
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refreshItem(item);
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}
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}
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@Override
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protected void onException(Throwable e) {
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AlertTips.error(getScene().getWindow(), TimiFXUI.MULTILINGUAL.text("file.tips.destroy_fail"));
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}
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}.start();
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}
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}.autoSize().showRelativeCenter(getScene().getWindow());
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}
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/**
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* 刷新子节点
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*
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* @param treeItem 父级节点
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*/
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public void refreshItem(TreeItem<File> treeItem) {
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if (treeItem instanceof FileItem fileItem) {
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fileItem.getChildren().clear();
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fileItem.getChildren().add(new FileItem());
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fileItem.asyncLoadChildren();
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}
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}
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/**
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* 刷新子节点
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*
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* @param fileItem 父级节点
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*/
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public void refreshItem(FileItem fileItem) {
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fileItem.getChildren().clear();
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fileItem.getChildren().add(new FileItem());
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fileItem.asyncLoadChildren();
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}
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/**
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* 选择目标路径
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*
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* @param path 路径
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*/
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public void selectItem(String path) {
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if (TimiJava.isEmpty(path)) {
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path = "./";
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}
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selectItem(new File(path));
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}
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/**
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* 选择目标文件
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*
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* @param file 目标文件
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*/
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public void selectItem(File file) {
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File parent = file.getAbsoluteFile();
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if (!parent.exists()) {
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parent = new File("./").getAbsoluteFile();
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}
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do {
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selectDeque.add(0, parent);
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} while ((parent = parent.getParentFile()) != null);
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if (TimiJava.isNotEmpty(selectDeque)) {
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ObservableList<TreeItem<File>> roots = getRoots();
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for (int i = 0; i < roots.size(); i++) {
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roots.get(i).setExpanded(false);
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if (roots.get(i).getValue().equals(selectDeque.get(0))) {
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selectDeque.remove(0);
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roots.get(i).setExpanded(true);
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if (TimiJava.isEmpty(selectDeque)) {
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break;
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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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* 添加构建节点过滤器，返回 false 时不创建该节点
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*
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* @param itemFilter 节点过滤器
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*/
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public void addItemFilter(CallbackArgReturn<File, Boolean> itemFilter) {
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itemFilters.add(itemFilter);
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}
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/**
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* 移除构建节点过滤器
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*
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* @param itemFilter 节点过滤器
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*/
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public void removeItemFilter(CallbackArgReturn<File, Boolean> itemFilter) {
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itemFilters.remove(itemFilter);
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}
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/**
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* 设置是否显示隐藏文件
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*
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* @param showHide true 为显示隐藏文件
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*/
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public void setShowHide(boolean showHide) {
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this.showHide.set(showHide);
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}
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/**
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* 当前是否显示隐藏文件
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*
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* @return true 为显示隐藏文件
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*/
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public boolean isShowHide() {
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return showHide.get();
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}
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/**
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* 获取显示隐藏文件监听
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*
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* @return 显示隐藏文件监听
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*/
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public BooleanProperty showHideProperty() {
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return showHide;
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}
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/**
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* 获取正在查找节点监听，此时属于被动展开，用于阻止主动展开的加载节点
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*
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* @return 正在查找节点监听
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*/
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public BooleanBinding findingItemProperty() {
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return findingItem;
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}
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/**
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* 文件节点
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*
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* @author 夜雨
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* @since 2023-03-16 00:23
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*/
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public final class FileItem extends TreeItem<File> {
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/** 默认构造，此时为占位节点 */
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FileItem() {
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this(null);
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}
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/**
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* 标准构造
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*
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* @param file 文件
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*/
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FileItem(File file) {
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super(file);
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if (file != null && file.isDirectory()) {
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getChildren().add(new FileItem(null)); // 占位
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}
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// 展开
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expandedProperty().addListener((obs, o, isExpanded) -> {
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if (isExpanded) {
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getSelectionModel().clearSelection();
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getSelectionModel().select(this);
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asyncLoadChildren();
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} else {
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getChildren().add(new FileItem());
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}
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});
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}
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/** 异步加载子节点 */
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void asyncLoadChildren() {
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RunAsync.callbackReturn(() -> {
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List<FileItem> fileItems = new ArrayList<>();
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File[] files = getValue().listFiles();
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if (files != null) {
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// 排序
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List<File> fileList = Arrays.stream(files).sorted(OS.FileSystem.COMPARATOR_FILE_NAME).toList();
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// 过滤
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list:
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for (int i = 0; i < fileList.size(); i++) {
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for (int j = 0; j < itemFilters.size(); j++) {
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if (!itemFilters.get(j).handler(fileList.get(i))) {
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continue list;
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}
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}
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fileItems.add(new FileItem(fileList.get(i)));
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}
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}
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return fileItems;
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}, items -> {
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getChildren().setAll(items);
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if (TimiJava.isNotEmpty(selectDeque)) {
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File file = selectDeque.remove(0);
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for (int i = 0; i < items.size(); i++) {
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if (items.get(i).getValue().equals(file)) {
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if (items.get(i).getValue().isDirectory()) {
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items.get(i).setExpanded(true);
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}
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break;
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}
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}
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if (TimiJava.isEmpty(selectDeque)) {
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// 执行选中
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Platform.runLater(() -> scrollTo(getSelectionModel().getSelectedIndex() - 5));
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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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Reference in New Issue
Block a user