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Enable drag'n'drop from maintable to external application (#11846)
* Create ClipboardContentGenerator out of CopyCitationAction * Fix method name * Add external drag'n'drop feature * Add link * Update CHANGELOG.md Co-authored-by: Christoph <siedlerkiller@gmail.com> --------- Co-authored-by: Christoph <siedlerkiller@gmail.com>
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src/main/java/org/jabref/gui/preview/ClipboardContentGenerator.java
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,136 @@ | ||
| package org.jabref.gui.preview; | ||
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| import java.io.IOException; | ||
| import java.io.StringReader; | ||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
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| import javafx.scene.input.ClipboardContent; | ||
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| import org.jabref.logic.citationstyle.CitationStyleGenerator; | ||
| import org.jabref.logic.citationstyle.CitationStyleOutputFormat; | ||
| import org.jabref.logic.citationstyle.CitationStylePreviewLayout; | ||
| import org.jabref.logic.journals.JournalAbbreviationRepository; | ||
| import org.jabref.logic.layout.Layout; | ||
| import org.jabref.logic.layout.LayoutFormatterPreferences; | ||
| import org.jabref.logic.layout.LayoutHelper; | ||
| import org.jabref.logic.layout.TextBasedPreviewLayout; | ||
| import org.jabref.logic.os.OS; | ||
| import org.jabref.logic.preview.PreviewLayout; | ||
| import org.jabref.model.database.BibDatabaseContext; | ||
| import org.jabref.model.entry.BibEntry; | ||
| import org.jabref.model.entry.BibEntryTypesManager; | ||
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| import com.airhacks.afterburner.injection.Injector; | ||
| import com.google.common.annotations.VisibleForTesting; | ||
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| public class ClipboardContentGenerator { | ||
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| private PreviewPreferences previewPreferences; | ||
| private final LayoutFormatterPreferences layoutFormatterPreferences; | ||
| private final JournalAbbreviationRepository abbreviationRepository; | ||
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| public ClipboardContentGenerator(PreviewPreferences previewPreferences, | ||
| LayoutFormatterPreferences layoutFormatterPreferences, | ||
| JournalAbbreviationRepository abbreviationRepository) { | ||
| this.previewPreferences = previewPreferences; | ||
| this.layoutFormatterPreferences = layoutFormatterPreferences; | ||
| this.abbreviationRepository = abbreviationRepository; | ||
| } | ||
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| public ClipboardContent generate(List<BibEntry> selectedEntries, CitationStyleOutputFormat outputFormat, BibDatabaseContext bibDatabaseContext) throws IOException { | ||
| List<String> citations = generateCitations(selectedEntries, outputFormat, bibDatabaseContext); | ||
| PreviewLayout previewLayout = previewPreferences.getSelectedPreviewLayout(); | ||
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| // if it is not a citation style take care of the preview | ||
| if (!(previewLayout instanceof CitationStylePreviewLayout)) { | ||
| return processPreview(citations); | ||
| } else { | ||
| // if it's generated by a citation style take care of each output format | ||
| ClipboardContent content; | ||
| return switch (outputFormat) { | ||
| case HTML -> processHtml(citations); | ||
| case TEXT -> processText(citations); | ||
| }; | ||
| } | ||
| } | ||
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| private List<String> generateCitations(List<BibEntry> selectedEntries, CitationStyleOutputFormat outputFormat, BibDatabaseContext bibDatabaseContext) throws IOException { | ||
| // This worker stored the style as filename. The CSLAdapter and the CitationStyleCache store the source of the | ||
| // style. Therefore, we extract the style source from the file. | ||
| String styleSource = null; | ||
| PreviewLayout previewLayout = previewPreferences.getSelectedPreviewLayout(); | ||
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| if (previewLayout instanceof CitationStylePreviewLayout citationStyleLayout) { | ||
| styleSource = citationStyleLayout.getText(); | ||
| } | ||
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| if (styleSource != null) { | ||
| return CitationStyleGenerator.generateBibliographies( | ||
| selectedEntries, | ||
| styleSource, | ||
| outputFormat, | ||
| bibDatabaseContext, | ||
| Injector.instantiateModelOrService(BibEntryTypesManager.class)); | ||
| } else { | ||
| return generateTextBasedPreviewLayoutCitations(selectedEntries, bibDatabaseContext); | ||
| } | ||
| } | ||
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| /** | ||
| * Generates a plain text string out of the preview (based on {@link org.jabref.logic.layout.TextBasedPreviewLayout} or {@link org.jabref.logic.bst.BstPreviewLayout}) | ||
| * and copies it additionally to the html to the clipboard (WYSIWYG Editors use the HTML, plain text editors the text) | ||
| */ | ||
| @VisibleForTesting | ||
| static ClipboardContent processPreview(List<String> citations) { | ||
| ClipboardContent content = new ClipboardContent(); | ||
| content.putHtml(String.join(CitationStyleOutputFormat.HTML.getLineSeparator(), citations)); | ||
| content.putString(String.join(CitationStyleOutputFormat.HTML.getLineSeparator(), citations)); | ||
| return content; | ||
| } | ||
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| /** | ||
| * Joins every citation with a newline and returns it. | ||
| */ | ||
| @VisibleForTesting | ||
| static ClipboardContent processText(List<String> citations) { | ||
| ClipboardContent content = new ClipboardContent(); | ||
| content.putString(String.join(CitationStyleOutputFormat.TEXT.getLineSeparator(), citations)); | ||
| return content; | ||
| } | ||
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| /** | ||
| * Inserts each citation into a HTML body and copies it to the clipboard. | ||
| * The given preview is based on {@link org.jabref.logic.citationstyle.CitationStylePreviewLayout}. | ||
| */ | ||
| @VisibleForTesting | ||
| static ClipboardContent processHtml(List<String> citations) { | ||
| String result = "<!DOCTYPE html>" + OS.NEWLINE + | ||
| "<html>" + OS.NEWLINE + | ||
| " <head>" + OS.NEWLINE + | ||
| " <meta charset=\"utf-8\">" + OS.NEWLINE + | ||
| " </head>" + OS.NEWLINE + | ||
| " <body>" + OS.NEWLINE + OS.NEWLINE; | ||
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| result += String.join(CitationStyleOutputFormat.HTML.getLineSeparator(), citations); | ||
| result += OS.NEWLINE + | ||
| " </body>" + OS.NEWLINE + | ||
| "</html>" + OS.NEWLINE; | ||
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| ClipboardContent content = new ClipboardContent(); | ||
| content.putString(result); | ||
| content.putHtml(result); | ||
| return content; | ||
| } | ||
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| private List<String> generateTextBasedPreviewLayoutCitations(List<BibEntry> selectedEntries, BibDatabaseContext bibDatabaseContext) throws IOException { | ||
| TextBasedPreviewLayout customPreviewLayout = previewPreferences.getCustomPreviewLayout(); | ||
| StringReader customLayoutReader = new StringReader(customPreviewLayout.getText().replace("__NEWLINE__", "\n")); | ||
| Layout layout = new LayoutHelper(customLayoutReader, layoutFormatterPreferences, abbreviationRepository).getLayoutFromText(); | ||
| List<String> citations = new ArrayList<>(selectedEntries.size()); | ||
| for (BibEntry entry : selectedEntries) { | ||
| citations.add(layout.doLayout(entry, bibDatabaseContext.getDatabase())); | ||
| } | ||
| return citations; | ||
| } | ||
| } |
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