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feat: Enabled loading of FXML files via drag&drop to WelcomeDialog. (g…
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.../java/com/oracle/javafx/scenebuilder/app/welcomedialog/WelcomeDialogFilesDropHandler.java
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| /* | ||
| * Copyright (c) 2024, Gluon and/or its affiliates. | ||
| * All rights reserved. Use is subject to license terms. | ||
| * | ||
| * This file is available and licensed under the following license: | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following conditions | ||
| * are met: | ||
| * | ||
| * - Redistributions of source code must retain the above copyright | ||
| * notice, this list of conditions and the following disclaimer. | ||
| * - Redistributions in binary form must reproduce the above copyright | ||
| * notice, this list of conditions and the following disclaimer in | ||
| * the documentation and/or other materials provided with the distribution. | ||
| * - Neither the name of Oracle Corporation and Gluon nor the names of its | ||
| * contributors may be used to endorse or promote products derived | ||
| * from this software without specific prior written permission. | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | ||
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | ||
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | ||
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | ||
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | ||
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | ||
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| */ | ||
|
|
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| package com.oracle.javafx.scenebuilder.app.welcomedialog; | ||
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|
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| import java.io.File; | ||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
| import java.util.Objects; | ||
| import java.util.function.Consumer; | ||
| import java.util.logging.Level; | ||
| import java.util.logging.Logger; | ||
|
|
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| final class WelcomeDialogFilesDropHandler { | ||
|
|
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| private static final Logger LOGGER = Logger.getLogger(WelcomeDialogFilesDropHandler.class.getName()); | ||
|
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| private final List<File> droppedFiles; | ||
| private final List<String> toOpen; | ||
| private final List<String> unsupportedItems; | ||
| private Consumer<List<String>> openFiles; | ||
| private Consumer<List<String>> handleUnsupported; | ||
|
|
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| WelcomeDialogFilesDropHandler(List<File> droppedFiles) { | ||
| this.droppedFiles = Objects.requireNonNull(droppedFiles); | ||
| this.toOpen = new ArrayList<>(droppedFiles.size()); | ||
| this.unsupportedItems = new ArrayList<>(droppedFiles.size()); | ||
| } | ||
|
|
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| final WelcomeDialogFilesDropHandler withSupportedFiles(Consumer<List<String>> handleOpen) { | ||
| this.openFiles = handleOpen; | ||
| return this; | ||
| } | ||
|
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| final WelcomeDialogFilesDropHandler withUnsupportedFiles(Consumer<List<String>> unsupportedHandler) { | ||
| this.handleUnsupported = unsupportedHandler; | ||
| return this; | ||
| } | ||
|
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| final void run() { | ||
| analyzeDroppedItems(); | ||
| handleDropResult(); | ||
| } | ||
|
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| final void handleDropResult() { | ||
| if (this.openFiles == null) { | ||
| throw new IllegalStateException("Please configure a dropped file handling action using the withSupportedFiles(...) method."); | ||
| } | ||
| if (this.handleUnsupported == null) { | ||
| throw new IllegalStateException("Please configure an action for handling of unsupported files using withUnsupportedFiles(...) method."); | ||
| } | ||
|
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| if (!toOpen.isEmpty()) { | ||
| LOGGER.log(Level.INFO, "Received drop event to open files..."); | ||
| openFiles.accept(toOpen); | ||
| } else { | ||
| LOGGER.log(Level.INFO, "Dropped object does not contain any loadable FXML files."); | ||
| handleUnsupported.accept(unsupportedItems); | ||
| } | ||
| } | ||
|
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| final void analyzeDroppedItems() { | ||
| if (droppedFiles.isEmpty()) { | ||
| return; | ||
| } | ||
|
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| for (var file : droppedFiles) { | ||
| if (file.isDirectory()) { | ||
| File[] children = file.listFiles(); | ||
| List<String> inDir = new ArrayList<>(children.length); | ||
| for (var child : children) { | ||
| if (isFxml(child)) { | ||
| inDir.add(child.getAbsolutePath()); | ||
| } | ||
| } | ||
| if (inDir.isEmpty()) { | ||
| unsupportedItems.add(file.getAbsolutePath()); | ||
| } else { | ||
| toOpen.addAll(inDir); | ||
| } | ||
| } else { | ||
| if (isFxml(file)) { | ||
| toOpen.add(file.getAbsolutePath()); | ||
| } else { | ||
| unsupportedItems.add(file.getAbsolutePath()); | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| final boolean isFxml(File file) { | ||
| if (file.isDirectory()) { | ||
| return false; | ||
| } | ||
| return file.toString() | ||
| .toLowerCase() | ||
| .endsWith(".fxml"); | ||
| } | ||
| } |
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