-/***************************************************************************
- * Copyright (C) 2006 by Peter Penz *
- * peter.penz@gmx.at *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
- ***************************************************************************/
-
-#include "undomanager.h"
-#include <klocale.h>
-#include <kio/netaccess.h>
-#include <qtimer.h>
-#include <assert.h>
-
-#include "dolphinmainwindow.h"
-#include "dolphinstatusbar.h"
-#include "progressindicator.h"
-
-DolphinCommand::DolphinCommand() :
- m_type(Copy),
- m_macroIndex(-1)
-{
- // Implementation note: DolphinCommands are stored in a QValueList, whereas
- // QValueList requires a default constructor of the added class.
- // Instead of expressing this implementation detail to the interface by adding a
- // Type::Undefined just Type::Copy is used to assure that all members have
- // a defined state.
- //
- // KDE4TODO: QList doesn't require a default constructor iirc - so remove this
-}
-
-DolphinCommand::DolphinCommand(Type type,
- const KUrl::List& source,
- const KUrl& dest) :
- m_type(type),
- m_macroIndex(-1),
- m_source(source),
- m_dest(dest)
-{
-}
-
-DolphinCommand::~DolphinCommand()
-{
-}
-
-DolphinCommand& DolphinCommand::operator = (const DolphinCommand& command)
-{
- m_type = command.m_type;
- m_source = command.m_source;
- m_dest = command.m_dest;
- return *this;
-}
-
-UndoManager& UndoManager::instance()
-{
- static UndoManager* instance = 0;
- if (instance == 0) {
- instance = new UndoManager();
- }
- return *instance;
-}
-
-void UndoManager::addCommand(const DolphinCommand& command)
-{
- ++m_historyIndex;
-
- QList<DolphinCommand>::iterator it = m_history.begin();
- it += m_historyIndex;
- if (m_recordMacro) {
- DolphinCommand macroCommand = command;
- macroCommand.m_macroIndex = m_macroCounter;
- m_history.insert(it, macroCommand);
- }
- else {
- m_history.insert(it, command);
- }
-
- emit undoAvailable(true);
- emit undoTextChanged(i18n("Undo: %1",commandText(command)));
-
- // prevent an endless growing of the Undo history
- if (m_historyIndex > 10000) {
- m_history.erase(m_history.begin());
- --m_historyIndex;
- }
-}
-
-void UndoManager::beginMacro()
-{
- assert(!m_recordMacro);
- m_recordMacro = true;
- ++m_macroCounter;
-}
-
-void UndoManager::endMacro()
-{
- assert(m_recordMacro);
- m_recordMacro = false;
-}
-
-// KDE4 TODO: consider switching to KCommandHistory (kdeui) for the command history, and to
-// KonqCommandRecorder etc. from libkonq/konq_undo.*
-void UndoManager::undo(DolphinMainWindow* mainWindow)
-{
- if (m_recordMacro) {
- endMacro();
- }
-
- if (m_historyIndex < 0) {
- return;
- }
-
- int progressCount = 0;
- int macroCount = 1;
- calcStepsCount(macroCount, progressCount);
-
- /*
- * KDE4, ### TODO Only here to avoid possible crash
- */
- ProgressIndicator progressIndicator(mainWindow, i18n("Executing undo operation..."),
- i18n("Executed undo operation."),
- progressCount);
-
- for (int i = 0; i < macroCount; ++i) {
- const DolphinCommand command = m_history[m_historyIndex];
-
- --m_historyIndex;
- if (m_historyIndex < 0) {
- emit undoAvailable(false);
- emit undoTextChanged(i18n("Undo"));
- }
- else {
- emit undoTextChanged(i18n("Undo: %1",commandText(m_history[m_historyIndex])));
- }
-
- if (m_historyIndex < static_cast<int>(m_history.count()) - 1) {
- emit redoAvailable(true);
- emit redoTextChanged(i18n("Redo: %1",commandText(command)));
- }
- else {
- emit redoAvailable(false);
- emit redoTextChanged(i18n("Redo"));
- }
-
- KUrl::List sourceUrls = command.source();
- KUrl::List::Iterator it = sourceUrls.begin();
- const KUrl::List::Iterator end = sourceUrls.end();
- const QString destUrl(command.destination().prettyUrl(KUrl::AddTrailingSlash));
-
- KIO::Job* job = 0;
- switch (command.type()) {
- case DolphinCommand::Link:
- case DolphinCommand::Copy: {
- KUrl::List list;
- while (it != end) {
- const KUrl deleteUrl(destUrl + (*it).fileName());
- list.append(deleteUrl);
- ++it;
- }
- job = KIO::del(list, false, false);
- break;
- }
-
- case DolphinCommand::Move: {
- KUrl::List list;
- const KUrl newDestUrl((*it).directory());
- while (it != end) {
- const KUrl newSourceUrl(destUrl + (*it).fileName());
- list.append(newSourceUrl);
- ++it;
- }
- job = KIO::move(list, newDestUrl, false);
- break;
- }
-
- case DolphinCommand::Rename: {
- assert(sourceUrls.count() == 1);
- KIO::NetAccess::move(command.destination(), (*it));
- break;
- }
-
- case DolphinCommand::Trash: {
- while (it != end) {
- // TODO: use KIO::special for accessing the trash protocol. See
- // also Dolphin::slotJobResult() for further details.
- const QString originalFileName((*it).fileName().section('-', 1));
- KUrl newDestUrl(destUrl + originalFileName);
- KIO::NetAccess::move(*it, newDestUrl);
- ++it;
-
- progressIndicator.execOperation();
- }
- break;
- }
-
- case DolphinCommand::CreateFolder:
- case DolphinCommand::CreateFile: {
- KIO::NetAccess::del(command.destination(), mainWindow);
- break;
- }
- }
-
- if (job != 0) {
- // Execute the jobs in a synchronous manner and forward the progress
- // information to the Dolphin statusbar.
- connect(job, SIGNAL(percent(KJob*, unsigned long)),
- this, SLOT(slotPercent(KJob*, unsigned long)));
- KIO::NetAccess::synchronousRun(job, mainWindow);
- }
-
- progressIndicator.execOperation();
- }
-}
-
-void UndoManager::redo(DolphinMainWindow *mainWindow)
-{
- if (m_recordMacro) {
- endMacro();
- }
-
- const int maxHistoryIndex = m_history.count() - 1;
- if (m_historyIndex >= maxHistoryIndex) {
- return;
- }
- ++m_historyIndex;
-
- int progressCount = 0;
- int macroCount = 1;
- calcStepsCount(macroCount, progressCount);
-
- ProgressIndicator progressIndicator(mainWindow, i18n("Executing redo operation..."),
- i18n("Executed redo operation."),
- progressCount);
-
- for (int i = 0; i < macroCount; ++i) {
- const DolphinCommand command = m_history[m_historyIndex];
- if (m_historyIndex >= maxHistoryIndex) {
- emit redoAvailable(false);
- emit redoTextChanged(i18n("Redo"));
- }
- else {
- emit redoTextChanged(i18n("Redo: %1",commandText(m_history[m_historyIndex + 1])));
- }
-
- emit undoAvailable(true);
- emit undoTextChanged(i18n("Undo: %1",commandText(command)));
-
- KUrl::List sourceUrls = command.source();
- KUrl::List::Iterator it = sourceUrls.begin();
- const KUrl::List::Iterator end = sourceUrls.end();
-
- KIO::Job* job = 0;
- switch (command.type()) {
- case DolphinCommand::Link: {
- job = KIO::link(sourceUrls, command.destination(), false);
- break;
- }
-
- case DolphinCommand::Copy: {
- job = KIO::copy(sourceUrls, command.destination(), false);
- break;
- }
-
- case DolphinCommand::Rename:
- case DolphinCommand::Move: {
- job = KIO::move(sourceUrls, command.destination(), false);
- break;
- }
-
- case DolphinCommand::Trash: {
- const QString destUrl(command.destination().prettyUrl());
- while (it != end) {
- // TODO: use KIO::special for accessing the trash protocol. See
- // also Dolphin::slotJobResult() for further details.
- const QString originalFileName((*it).fileName().section('-', 1));
- KUrl originalSourceUrl(destUrl + "/" + originalFileName);
- KIO::Job* moveToTrashJob = KIO::trash(originalSourceUrl);
- KIO::NetAccess::synchronousRun(moveToTrashJob, mainWindow);
- ++it;
-
- progressIndicator.execOperation();
- }
- break;
- }
-
- case DolphinCommand::CreateFolder: {
- KIO::NetAccess::mkdir(command.destination(), mainWindow);
- break;
- }
-
- case DolphinCommand::CreateFile: {
- progressIndicator.execOperation();
- KUrl::List::Iterator it = sourceUrls.begin();
- assert(sourceUrls.count() == 1);
- KIO::CopyJob* copyJob = KIO::copyAs(*it, command.destination(), false);
- copyJob->setDefaultPermissions(true);
- job = copyJob;
- break;
- }
- }
-
- if (job != 0) {
- // Execute the jobs in a synchronous manner and forward the progress
- // information to the Dolphin statusbar.
- connect(job, SIGNAL(percent(KJob*, unsigned long)),
- this, SLOT(slotPercent(KJob*, unsigned long)));
- KIO::NetAccess::synchronousRun(job, mainWindow);
- }
-
- ++m_historyIndex;
- progressIndicator.execOperation();
- }
-
- --m_historyIndex;
-
-}
-
-UndoManager::UndoManager() :
- m_recordMacro(false),
- m_historyIndex(-1),
- m_macroCounter(0)
-{
-}
-
-UndoManager::~UndoManager()
-{
-}
-
-QString UndoManager::commandText(const DolphinCommand& command) const
-{
- QString text;
- switch (command.type()) {
- case DolphinCommand::Copy: text = i18n("Copy"); break;
- case DolphinCommand::Move: text = i18n("Move"); break;
- case DolphinCommand::Link: text = i18n("Link"); break;
- case DolphinCommand::Rename: text = i18n("Rename"); break;
- case DolphinCommand::Trash: text = i18n("Move to Trash"); break;
- case DolphinCommand::CreateFolder: text = i18n("Create New Folder"); break;
- case DolphinCommand::CreateFile: text = i18n("Create New File"); break;
- default: break;
- }
- return text;
-}
-
-void UndoManager::slotPercent(KJob* /* job */, unsigned long /* percent */)
-{
- // It is not allowed to update the progress indicator in the context
- // of this slot, hence do an asynchronous triggering.
- QTimer::singleShot(0, this, SLOT(updateProgress()));
-}
-
-void UndoManager::updateProgress()
-{
- /*
- * ### XXX, TODO, KDE4 make this work when switchting to KonqUndoManager
- */
- //m_progressIndicator->execOperation();
-}
-
-void UndoManager::calcStepsCount(int& macroCount, int& progressCount)
-{
- progressCount = 0;
- macroCount = 0;
-
- const int macroIndex = m_history[m_historyIndex].m_macroIndex;
- if (macroIndex < 0) {
- // default use case: no macro has been recorded
- macroCount = 1;
- progressCount = m_history[m_historyIndex].source().count();
- return;
- }
-
- // iterate backward for undo...
- int i = m_historyIndex;
- while ((i >= 0) && (m_history[i].m_macroIndex == macroIndex)) {
- ++macroCount;
- progressCount += m_history[i].source().count();
- --i;
- }
-
- // iterate forward for redo...
- const int max = m_history.count() - 1;
- i = m_historyIndex + 1;
- while ((i <= max) && (m_history[i].m_macroIndex == macroIndex)) {
- ++macroCount;
- progressCount += m_history[i].source().count();
- ++i;
- }
-}
-
-#include "undomanager.moc"
-
-
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