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Pasting a URL from the clipboard wraps the selected text as a link (#…
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src/main/java/org/asciidoc/intellij/pasteProvider/AsciiDocPasteLinkProvider.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,123 @@ | ||
| package org.asciidoc.intellij.pasteProvider; | ||
|
|
||
| import com.intellij.ide.PasteProvider; | ||
| import com.intellij.openapi.actionSystem.ActionUpdateThread; | ||
| import com.intellij.openapi.actionSystem.CommonDataKeys; | ||
| import com.intellij.openapi.actionSystem.DataContext; | ||
| import com.intellij.openapi.editor.Caret; | ||
| import com.intellij.openapi.editor.Document; | ||
| import com.intellij.openapi.editor.Editor; | ||
| import com.intellij.openapi.editor.SelectionModel; | ||
| import com.intellij.openapi.editor.actions.PasteAction; | ||
| import com.intellij.openapi.util.TextRange; | ||
| import com.intellij.psi.PsiFile; | ||
| import org.asciidoc.intellij.actions.asciidoc.DocumentWriteAction; | ||
| import org.asciidoc.intellij.file.AsciiDocFileType; | ||
| import org.asciidoc.intellij.psi.AsciiDocUtil; | ||
| import org.jetbrains.annotations.NotNull; | ||
|
|
||
| import java.awt.datatransfer.DataFlavor; | ||
| import java.awt.datatransfer.Transferable; | ||
| import java.awt.datatransfer.UnsupportedFlavorException; | ||
| import java.io.IOException; | ||
| import java.util.Objects; | ||
|
|
||
| public class AsciiDocPasteLinkProvider implements PasteProvider { | ||
| @Override | ||
| public @NotNull ActionUpdateThread getActionUpdateThread() { | ||
| return ActionUpdateThread.BGT; | ||
| } | ||
|
|
||
| @Override | ||
| public void performPaste(@NotNull DataContext dataContext) { | ||
| final Editor editor = CommonDataKeys.EDITOR.getData(dataContext); | ||
| if (editor == null) { | ||
| return; | ||
| } | ||
| DocumentWriteAction.run(editor.getProject(), () -> { | ||
| Document document = editor.getDocument(); | ||
| Caret currentCaret = editor.getCaretModel().getCurrentCaret(); | ||
| if (currentCaret.getSelectionRange().getLength() == 0) { | ||
| return; | ||
| } | ||
| Transferable produce = Objects.requireNonNull(dataContext.getData(PasteAction.TRANSFERABLE_PROVIDER)).produce(); | ||
| if (produce.isDataFlavorSupported(DataFlavor.stringFlavor)) { | ||
| try { | ||
| String url = produce.getTransferData(DataFlavor.stringFlavor).toString(); | ||
| SelectionModel selectionModel = editor.getSelectionModel(); | ||
| if (AsciiDocUtil.URL_PREFIX_PATTERN.matcher(url).find() || AsciiDocUtil.EMAIL_PATTERN.matcher(url).matches()) { | ||
| int start = selectionModel.getSelectionStart(); | ||
| int end = selectionModel.getSelectionEnd(); | ||
| String oldText = document.getText(TextRange.create(start, end)); | ||
| String newText = oldText; | ||
| if (oldText.contains("]")) { | ||
| newText = newText.replaceAll("\\\\]", "\\\\\\\\]"); | ||
| newText = newText.replaceAll("]", "\\\\]"); | ||
| } | ||
| String prefix = url + "["; | ||
| if (url.contains("[")) { | ||
| prefix = "link:++" + url + "++["; | ||
| } else if (AsciiDocUtil.EMAIL_PATTERN.matcher(url).matches()) { | ||
| prefix = "link:mailto:" + url + "["; | ||
| } | ||
| if (!oldText.equals(newText)) { | ||
| document.replaceString(start, end, newText); | ||
| } | ||
| document.insertString(start, prefix); | ||
| document.insertString(start + prefix.length() + newText.length(), "]"); | ||
| // If the cursor was at the beginning of the selected text, it is now at the beginning of the URL. | ||
| // Move it to the beginning of the text again. | ||
| if (editor.getCaretModel().getCurrentCaret().getOffset() < start + prefix.length()) { | ||
| editor.getCaretModel().getCurrentCaret().moveToOffset(start + prefix.length()); | ||
| } | ||
| } | ||
| } catch (IOException | UnsupportedFlavorException ignored) { | ||
| // ignored | ||
| } | ||
| } | ||
| }, "Paste link"); | ||
| } | ||
|
|
||
| @Override | ||
| public boolean isPasteEnabled(@NotNull DataContext dataContext) { | ||
| if (!isPastePossible(dataContext)) { | ||
| return false; | ||
| } | ||
| final Editor editor = CommonDataKeys.EDITOR.getData(dataContext); | ||
| if (editor == null) { | ||
| return false; | ||
| } | ||
| Caret currentCaret = editor.getCaretModel().getCurrentCaret(); | ||
| if (currentCaret.getSelectionRange().getLength() == 0) { | ||
| return false; | ||
| } | ||
| Transferable produce = Objects.requireNonNull(dataContext.getData(PasteAction.TRANSFERABLE_PROVIDER)).produce(); | ||
| if (produce.isDataFlavorSupported(DataFlavor.stringFlavor)) { | ||
| try { | ||
| String data = produce.getTransferData(DataFlavor.stringFlavor).toString(); | ||
| if (AsciiDocUtil.URL_PREFIX_PATTERN.matcher(data).find() || AsciiDocUtil.EMAIL_PATTERN.matcher(data).matches()) { | ||
| return true; | ||
| } | ||
| } catch (IOException | UnsupportedFlavorException e) { | ||
| return false; | ||
| } | ||
| } | ||
| return false; | ||
| } | ||
|
|
||
| @Override | ||
| public boolean isPastePossible(@NotNull DataContext dataContext) { | ||
| final Editor editor = CommonDataKeys.EDITOR.getData(dataContext); | ||
| if (editor == null) { | ||
| return false; | ||
| } | ||
| final PsiFile file = CommonDataKeys.PSI_FILE.getData(dataContext); | ||
| if (file == null) { | ||
| return false; | ||
| } | ||
| if (file.getFileType() != AsciiDocFileType.INSTANCE) { | ||
| return false; | ||
| } | ||
| return true; | ||
| } | ||
| } |
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