PasteOperation.java

package net.sourceforge.vrapper.vim.commands;

import net.sourceforge.vrapper.platform.TextContent;
import net.sourceforge.vrapper.utils.ContentType;
import net.sourceforge.vrapper.utils.LineInformation;
import net.sourceforge.vrapper.utils.Position;
import net.sourceforge.vrapper.utils.TextRange;
import net.sourceforge.vrapper.utils.VimUtils;
import net.sourceforge.vrapper.vim.EditorAdaptor;
import net.sourceforge.vrapper.vim.register.RegisterContent;

public class PasteOperation extends SimpleTextOperation {

    public static final PasteOperation INSTANCE = new PasteOperation();

    private PasteOperation() { /* NOP */ }

    @Override
    public void execute(EditorAdaptor editorAdaptor, TextRange region, ContentType contentType) {
        try {
            editorAdaptor.getHistory().beginCompoundChange();
            doIt(editorAdaptor, region, contentType);
        } finally {
            editorAdaptor.getHistory().endCompoundChange();
        }
    }

    public TextOperation repetition() {
        return this;
    }

    public static void doIt(EditorAdaptor editorAdaptor, TextRange range, ContentType contentType) {
		RegisterContent registerContent = editorAdaptor.getRegisterManager().getActiveRegister().getContent();
		String text = registerContent.getText();
		TextContent content = editorAdaptor.getModelContent();
		int offset = range.getLeftBound().getModelOffset();

		DeleteOperation.doIt(editorAdaptor, range, contentType);
        
		int position;
		if (registerContent.getPayloadType() == ContentType.LINES) {
			text = "\n" + text;
			content.replace(offset, 0, text);
			LineInformation firstPastedLine = content.getLineInformationOfOffset(offset + 1);
            position = VimUtils.getFirstNonWhiteSpaceOffset(content, firstPastedLine);
        } else {
        	position = offset + text.length() - 1;
    		content.replace(offset, 0, text);
        }
//		content.replace(offset, 0, StringUtils.multiply(text, count));
		// TODO: compatibility option: position vs. offset for destination
		Position destination = editorAdaptor.getCursorService().newPositionForModelOffset(position);
		editorAdaptor.setPosition(destination, true);
    }
}

VisualModeTests.java

    @Test public void testPastingInVisualMode() {
		defaultRegister.setContent(new StringRegisterContent(ContentType.TEXT, "a series of tubes"));
		checkCommand(forKeySeq("p"),
				false, "The internet is ","awesome","!",
				false, "The internet is a series of tube","","s!");
		verify(adaptor).changeMode(NormalMode.NAME);
		assertYanked(ContentType.TEXT, "awesome");

		defaultRegister.setContent(new StringRegisterContent(ContentType.LINES, "\t\ta series of tubes\n"));
		checkCommand(forKeySeq("p"),
				true, "The internet is ","awesome","!",
				true, "The internet is \n\t\t","","a series of tubes\n!");
		verify(adaptor, times(2)).changeMode(NormalMode.NAME);
		assertYanked(ContentType.TEXT, "awesome");

		defaultRegister.setContent(new StringRegisterContent(ContentType.LINES, "a series of tubes\n"));
		checkCommand(forKeySeq("p"),
				false, "The internet is \n","awesome\n","!",
				false, "The internet is \n","","a series of tubes\n!");
		verify(adaptor, times(3)).changeMode(NormalMode.NAME);
		assertYanked(ContentType.LINES, "awesome\n");

		defaultRegister.setContent(new StringRegisterContent(ContentType.TEXT, "a series of tubes"));
		checkCommand(forKeySeq("p"),
				false, "The internet is \n","awesome\n","!",
				false, "The internet is \n","","a series of tubes\n!");
		verify(adaptor, times(4)).changeMode(NormalMode.NAME);
		assertYanked(ContentType.LINES, "awesome\n");

		defaultRegister.setContent(new StringRegisterContent(ContentType.TEXT, "a series of tubes"));
		checkCommand(forKeySeq("2p"),
				false, "The internet is ","awesome","!",
				false, "The internet is a series of tubesa series of tube","","s!");
		verify(adaptor).changeMode(NormalMode.NAME);
		assertYanked(ContentType.TEXT, "awesome");
	}