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Editor: Introduce circular clipboard

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This is a clipboard within Creator only. It allows the user to paste/navigate
through the recently copied content by repeatedly triggering a shortcut (which
is by default set to Ctrl+Shift+V).

Task-number: QTCREATORBUG-146
Change-Id: Ie449ab4b304548d5037a0c877bbbc0344d654325
Reviewed-by: Eike Ziller <eike.ziller@nokia.com>
This commit is contained in:
Leandro Melo
2011-12-13 12:15:30 +01:00
parent a1aad6eeef
commit b8d9b28f1e
9 changed files with 250 additions and 9 deletions
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93
src/plugins/texteditor/basetexteditor.cpp
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@@ -54,6 +54,7 @@
#include "convenience.h"
#include "texteditorsettings.h"
#include "texteditoroverlay.h"
#include "circularclipboard.h"
#include <aggregation/aggregate.h>
#include <coreplugin/actionmanager/actionmanager.h>
@@ -99,6 +100,7 @@
#include <QtGui/QInputDialog>
#include <QtGui/QMenu>
#include <QtGui/QMessageBox>
#include <QtGui/QClipboard>
//#define DO_FOO
@@ -201,6 +203,18 @@ static void convertToPlainText(QString &txt)
}
}
static bool isModifierKey(int key)
{
return key == Qt::Key_Shift
|| key == Qt::Key_Control
|| key == Qt::Key_Alt
|| key == Qt::Key_Meta;
}
static const char kTextBlockMimeType[] = "application/vnd.nokia.qtcreator.blocktext";
static const char kVerticalTextBlockMimeType[] = "application/vnd.nokia.qtcreator.vblocktext";
BaseTextEditorWidget::BaseTextEditorWidget(QWidget *parent)
: QPlainTextEdit(parent)
{
@@ -1524,6 +1538,11 @@ void BaseTextEditorWidget::keyPressEvent(QKeyEvent *e)
d->m_moveLineUndoHack = false;
d->clearVisibleFoldedBlock();
if (d->m_isCirculatingClipboard
&& !isModifierKey(e->key())) {
d->m_isCirculatingClipboard = false;
}
if (e->key() == Qt::Key_Alt
&& d->m_behaviorSettings.m_keyboardTooltips) {
d->m_maybeFakeTooltipEvent = true;
@@ -2461,6 +2480,7 @@ BaseTextEditorPrivate::BaseTextEditorPrivate()
m_requestMarkEnabled(true),
m_lineSeparatorsAllowed(false),
m_maybeFakeTooltipEvent(false),
m_isCirculatingClipboard(false),
m_visibleWrapColumn(0),
m_linkPressed(false),
m_delayedUpdateTimer(0),
@@ -5742,6 +5762,22 @@ void BaseTextEditorWidget::cut()
QPlainTextEdit::cut();
}
void BaseTextEditorWidget::copy()
{
if (!textCursor().hasSelection())
return;
QPlainTextEdit::copy();
const QMimeData *mimeData = QApplication::clipboard()->mimeData();
if (mimeData) {
CircularClipboard *circularClipBoard = CircularClipboard::instance();
circularClipBoard->collect(duplicateMimeData(mimeData));
// We want the latest copied content to be the first one to appear on circular paste.
circularClipBoard->toLastCollect();
}
}
void BaseTextEditorWidget::paste()
{
if (d->m_inBlockSelectionMode) {
@@ -5750,12 +5786,36 @@ void BaseTextEditorWidget::paste()
QPlainTextEdit::paste();
}
void BaseTextEditorWidget::circularPaste()
{
const QMimeData *mimeData = CircularClipboard::instance()->next();
if (!mimeData)
return;
QTextCursor cursor = textCursor();
if (!d->m_isCirculatingClipboard) {
cursor.beginEditBlock();
d->m_isCirculatingClipboard = true;
} else {
cursor.joinPreviousEditBlock();
}
const int selectionStart = qMin(cursor.position(), cursor.anchor());
insertFromMimeData(mimeData);
cursor.setPosition(selectionStart, QTextCursor::KeepAnchor);
cursor.endEditBlock();
setTextCursor(flippedCursor(cursor));
// We want to latest pasted content to replace the system's current clipboard.
QPlainTextEdit::copy();
}
QMimeData *BaseTextEditorWidget::createMimeDataFromSelection() const
{
if (d->m_inBlockSelectionMode) {
QMimeData *mimeData = new QMimeData;
QString text = d->copyBlockSelection();
mimeData->setData(QLatin1String("application/vnd.nokia.qtcreator.vblocktext"), text.toUtf8());
mimeData->setData(QLatin1String(kVerticalTextBlockMimeType), text.toUtf8());
mimeData->setText(text); // for exchangeability
return mimeData;
} else if (textCursor().hasSelection()) {
@@ -5829,7 +5889,7 @@ QMimeData *BaseTextEditorWidget::createMimeDataFromSelection() const
cursor.setPosition(selstart.position());
cursor.setPosition(selend.position(), QTextCursor::KeepAnchor);
text = cursor.selectedText();
mimeData->setData(QLatin1String("application/vnd.nokia.qtcreator.blocktext"), text.toUtf8());
mimeData->setData(QLatin1String(kTextBlockMimeType), text.toUtf8());
}
return mimeData;
}
@@ -5846,8 +5906,8 @@ void BaseTextEditorWidget::insertFromMimeData(const QMimeData *source)
if (isReadOnly())
return;
if (source->hasFormat(QLatin1String("application/vnd.nokia.qtcreator.vblocktext"))) {
QString text = QString::fromUtf8(source->data(QLatin1String("application/vnd.nokia.qtcreator.vblocktext")));
if (source->hasFormat(QLatin1String(kVerticalTextBlockMimeType))) {
QString text = QString::fromUtf8(source->data(QLatin1String(kVerticalTextBlockMimeType)));
if (text.isEmpty())
return;
@@ -5923,8 +5983,8 @@ void BaseTextEditorWidget::insertFromMimeData(const QMimeData *source)
bool insertAtBeginningOfLine = ts.cursorIsAtBeginningOfLine(cursor);
if (insertAtBeginningOfLine
&& source->hasFormat(QLatin1String("application/vnd.nokia.qtcreator.blocktext"))) {
text = QString::fromUtf8(source->data(QLatin1String("application/vnd.nokia.qtcreator.blocktext")));
&& source->hasFormat(QLatin1String(kTextBlockMimeType))) {
text = QString::fromUtf8(source->data(QLatin1String(kTextBlockMimeType)));
if (text.isEmpty())
return;
}
@@ -5964,6 +6024,24 @@ void BaseTextEditorWidget::insertFromMimeData(const QMimeData *source)
setTextCursor(cursor);
}
QMimeData *BaseTextEditorWidget::duplicateMimeData(const QMimeData *source) const
{
Q_ASSERT(source);
QMimeData *mimeData = new QMimeData;
mimeData->setText(source->text());
mimeData->setHtml(source->html());
if (source->hasFormat(QLatin1String(kVerticalTextBlockMimeType))) {
mimeData->setData(QLatin1String(kVerticalTextBlockMimeType),
source->data(QLatin1String(kVerticalTextBlockMimeType)));
} else if (source->hasFormat(QLatin1String(kTextBlockMimeType))) {
mimeData->setData(QLatin1String(kTextBlockMimeType),
source->data(QLatin1String(kTextBlockMimeType)));
}
return mimeData;
}
void BaseTextEditorWidget::appendStandardContextMenuActions(QMenu *menu)
{
menu->addSeparator();
@@ -5978,6 +6056,9 @@ void BaseTextEditorWidget::appendStandardContextMenuActions(QMenu *menu)
a = am->command(Core::Constants::PASTE)->action();
if (a && a->isEnabled())
menu->addAction(a);
a = am->command(Constants::CIRCULAR_PASTE)->action();
if (a && a->isEnabled())
menu->addAction(a);
}