Example usage for com.intellij.openapi.ide KillRingTransferable isReadyToCombine

Introduction

In this page you can find the example usage for com.intellij.openapi.ide KillRingTransferable isReadyToCombine.

Prototype

public boolean isReadyToCombine() 

Source Link

Usage

From source file:com.intellij.ide.CopyPasteManagerEx.java

License:Apache License

/**
 * Stores given content within the current manager. It is merged with already stored ones
 * if necessary (see {@link KillRingTransferable}).
 *
 * @param content content to store//from  www. ja v a2  s. com
 * @return content that is either the given one or the one that was assembled from it and already stored one
 */
@NotNull
private Transferable addNewContentToStack(@NotNull Transferable content) {
    try {
        String clipString = getStringContent(content);
        if (clipString == null) {
            return content;
        }

        if (content instanceof KillRingTransferable) {
            KillRingTransferable killRingContent = (KillRingTransferable) content;
            if (killRingContent.isReadyToCombine() && !myData.isEmpty()) {
                Transferable prev = myData.get(0);
                if (prev instanceof KillRingTransferable) {
                    Transferable merged = merge(killRingContent, (KillRingTransferable) prev);
                    if (merged != null) {
                        myData.set(0, merged);
                        return merged;
                    }
                }
            }
            if (killRingContent.isReadyToCombine()) {
                addToTheTopOfTheStack(killRingContent);
                return killRingContent;
            }
        }

        Transferable same = null;
        for (Transferable old : myData) {
            if (clipString.equals(getStringContent(old))) {
                same = old;
                break;
            }
        }

        if (same == null) {
            addToTheTopOfTheStack(content);
        } else {
            moveContentToStackTop(same);
        }
    } catch (UnsupportedFlavorException ignore) {
    } catch (IOException ignore) {
    }
    return content;
}

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From source file:com.intellij.ide.CopyPasteManagerEx.java

License:Apache License

/**
 * Merges given new data with the given old one and returns merge result in case of success.
 *
 * @param newData new data to merge/*from  ww w  .  ja  va  2s  .  c  om*/
 * @param oldData old data to merge
 * @return merge result of the given data if possible; <code>null</code> otherwise
 * @throws IOException                as defined by {@link Transferable#getTransferData(DataFlavor)}
 * @throws UnsupportedFlavorException as defined by {@link Transferable#getTransferData(DataFlavor)}
 */
@Nullable
private static Transferable merge(@NotNull KillRingTransferable newData, @NotNull KillRingTransferable oldData)
        throws IOException, UnsupportedFlavorException {
    if (!oldData.isReadyToCombine() || !newData.isReadyToCombine()) {
        return null;
    }

    Document document = newData.getDocument();
    if (document == null || document != oldData.getDocument()) {
        return null;
    }

    Object newDataText = newData.getTransferData(DataFlavor.stringFlavor);
    Object oldDataText = oldData.getTransferData(DataFlavor.stringFlavor);
    if (newDataText == null || oldDataText == null) {
        return null;
    }

    if (oldData.isCut()) {
        if (newData.getStartOffset() == oldData.getStartOffset()) {
            return new KillRingTransferable(oldDataText.toString() + newDataText, document,
                    oldData.getStartOffset(), newData.getEndOffset(), newData.isCut());
        }
    }

    if (newData.getStartOffset() == oldData.getEndOffset()) {
        return new KillRingTransferable(oldDataText.toString() + newDataText, document,
                oldData.getStartOffset(), newData.getEndOffset(), false);
    }

    if (newData.getEndOffset() == oldData.getStartOffset()) {
        return new KillRingTransferable(newDataText.toString() + oldDataText, document,
                newData.getStartOffset(), oldData.getEndOffset(), false);
    }

    return null;
}

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