forked from qt-creator/qt-creator
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592
src/plugins/coreplugin/filemanager.cpp
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592
src/plugins/coreplugin/filemanager.cpp
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@@ -0,0 +1,592 @@
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/***************************************************************************
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**
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** This file is part of Qt Creator
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**
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** Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
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||||
**
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||||
** Contact: Qt Software Information (qt-info@nokia.com)
|
||||
**
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||||
**
|
||||
** Non-Open Source Usage
|
||||
**
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||||
** Licensees may use this file in accordance with the Qt Beta Version
|
||||
** License Agreement, Agreement version 2.2 provided with the Software or,
|
||||
** alternatively, in accordance with the terms contained in a written
|
||||
** agreement between you and Nokia.
|
||||
**
|
||||
** GNU General Public License Usage
|
||||
**
|
||||
** Alternatively, this file may be used under the terms of the GNU General
|
||||
** Public License versions 2.0 or 3.0 as published by the Free Software
|
||||
** Foundation and appearing in the file LICENSE.GPL included in the packaging
|
||||
** of this file. Please review the following information to ensure GNU
|
||||
** General Public Licensing requirements will be met:
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||||
**
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||||
** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
|
||||
** http://www.gnu.org/copyleft/gpl.html.
|
||||
**
|
||||
** In addition, as a special exception, Nokia gives you certain additional
|
||||
** rights. These rights are described in the Nokia Qt GPL Exception version
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** 1.2, included in the file GPL_EXCEPTION.txt in this package.
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**
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***************************************************************************/
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#include "filemanager.h"
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#include "ifile.h"
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#include "mainwindow.h"
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#include "saveitemsdialog.h"
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#include "vcsmanager.h"
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#include "editormanager.h"
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#include "mimedatabase.h"
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#include "iversioncontrol.h"
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#include <QtCore/QDebug>
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#include <QtCore/QSettings>
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#include <QtCore/QFileInfo>
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#include <QtCore/QFile>
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#include <QtCore/QDir>
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#include <QtCore/QTimer>
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#include <QtCore/QFileSystemWatcher>
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#include <QtGui/QFileDialog>
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#include <QtGui/QMessageBox>
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using namespace Core;
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using namespace Core::Internal;
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/*!
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\class FileManager
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\mainclass
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\ingroup qwb
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\inheaderfile filemanager.h
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\brief Manages a set of IFile objects.
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The FileManager service monitors a set of IFile's. Plugins should register
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files they work with at the service. The files the IFile's point to will be
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monitored at filesystem level. If a file changes, the status of the IFile's
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will be adjusted accordingly. Furthermore, on application exit the user will
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be asked to save all modified files.
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Different IFile objects in the set can point to the same file in the
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filesystem. The monitoring of a file can be blocked by blockFileChange(), and
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enabled again by unblockFileChange().
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The FileManager service also provides two convenience methods for saving
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files: saveModifiedFiles() and saveModifiedFilesSilently(). Both take a list
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of FileInterfaces as an argument, and return the list of files which were
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_not_ saved.
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The service also manages the list of recent files to be shown to the user
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(see addToRecentFiles() and recentFiles()).
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*/
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static const char *settingsGroup = "RecentFiles";
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static const char *filesKey = "Files";
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FileManager::FileManager(Core::ICore *core, MainWindow *mw) :
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QObject(mw),
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m_core(core),
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m_mainWindow(mw),
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m_fileWatcher(new QFileSystemWatcher(this)),
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m_blockActivated(false)
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{
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connect(m_fileWatcher, SIGNAL(fileChanged(const QString&)),
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this, SLOT(changedFile(const QString&)));
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connect(m_mainWindow, SIGNAL(windowActivated()),
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this, SLOT(mainWindowActivated()));
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connect(m_core, SIGNAL(contextChanged(Core::IContext*)),
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this, SLOT(syncWithEditor(Core::IContext*)));
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QSettings *s = m_mainWindow->settings();
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s->beginGroup(QLatin1String(settingsGroup));
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m_recentFiles = s->value(QLatin1String(filesKey), QStringList()).toStringList();
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s->endGroup();
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for (QStringList::iterator it = m_recentFiles.begin(); it != m_recentFiles.end(); ) {
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if (QFileInfo(*it).isFile()) {
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++it;
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} else {
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it = m_recentFiles.erase(it);
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}
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}
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}
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/*!
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\fn bool FileManager::addFiles(const QList<IFile *> &files)
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Adds a list of IFile's to the collection.
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Returns true if the file specified by \a files have not been yet part of the file list.
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*/
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bool FileManager::addFiles(const QList<IFile *> &files)
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{
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bool filesAdded = false;
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foreach (IFile *file, files) {
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if (!file || m_managedFiles.contains(file))
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continue;
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connect(file, SIGNAL(changed()), this, SLOT(checkForNewFileName()));
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connect(file, SIGNAL(destroyed(QObject *)), this, SLOT(fileDestroyed(QObject *)));
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filesAdded = true;
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addWatch(fixFileName(file->fileName()));
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updateFileInfo(file);
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}
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return filesAdded;
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}
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/*!
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\fn bool FileManager::addFile(IFile *files)
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Adds a IFile object to the collection.
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Returns true if the file specified by \a file has not been yet part of the file list.
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*/
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bool FileManager::addFile(IFile *file)
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{
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return addFiles(QList<IFile *>() << file);
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}
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void FileManager::fileDestroyed(QObject *obj)
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{
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// we can't use qobject_cast here, because meta data is already destroyed
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IFile *file = static_cast<IFile*>(obj);
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const QString filename = m_managedFiles.value(file).fileName;
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m_managedFiles.remove(file);
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removeWatch(filename);
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}
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/*!
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\fn bool FileManager::removeFile(IFile *file)
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Removes a IFile object from the collection.
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Returns true if the file specified by \a file has been part of the file list.
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*/
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bool FileManager::removeFile(IFile *file)
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{
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if (!file)
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return false;
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disconnect(file, SIGNAL(changed()), this, SLOT(checkForNewFileName()));
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disconnect(file, SIGNAL(destroyed(QObject *)), this, SLOT(fileDestroyed(QObject *)));
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if (!m_managedFiles.contains(file))
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return false;
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const FileInfo info = m_managedFiles.take(file);
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const QString filename = info.fileName;
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removeWatch(filename);
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return true;
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}
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void FileManager::addWatch(const QString &filename)
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{
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if (!filename.isEmpty() && managedFiles(filename).isEmpty()) {
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m_fileWatcher->addPath(filename);
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}
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}
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void FileManager::removeWatch(const QString &filename)
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{
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if (!filename.isEmpty() && managedFiles(filename).isEmpty()) {
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m_fileWatcher->removePath(filename);
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}
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}
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void FileManager::checkForNewFileName()
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{
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IFile *file = qobject_cast<IFile *>(sender());
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Q_ASSERT(file);
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const QString newfilename = fixFileName(file->fileName());
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const QString oldfilename = m_managedFiles.value(file).fileName;
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if (!newfilename.isEmpty() && newfilename != oldfilename) {
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m_managedFiles[file].fileName = newfilename;
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removeWatch(oldfilename);
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addWatch(newfilename);
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}
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}
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// TODO Rename to nativeFileName
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QString FileManager::fixFileName(const QString &fileName)
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{
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QString s = fileName;
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#ifdef Q_OS_WIN
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s = s.toLower();
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#endif
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if (!QFile::exists(s))
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return QDir::toNativeSeparators(s);
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return QFileInfo(QDir::toNativeSeparators(s)).canonicalFilePath();
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}
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/*!
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\fn bool FileManager::isFileManaged(const QString &fileName) const
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Returns true if at least one IFile in the set points to \a fileName.
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*/
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bool FileManager::isFileManaged(const QString &fileName) const
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{
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if (fileName.isEmpty())
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return false;
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return !managedFiles(fixFileName(fileName)).isEmpty();
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}
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/*!
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\fn QList<IFile*> FileManager::modifiedFiles() const
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Returns the list of IFile's that have been modified.
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*/
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QList<IFile *> FileManager::modifiedFiles() const
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{
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QList<IFile *> modifiedFiles;
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const QMap<IFile*, FileInfo>::const_iterator cend = m_managedFiles.constEnd();
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for (QMap<IFile*, FileInfo>::const_iterator i = m_managedFiles.constBegin(); i != cend; ++i) {
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IFile *fi = i.key();
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if (fi->isModified())
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modifiedFiles << fi;
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}
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return modifiedFiles;
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}
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/*!
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\fn void FileManager::blockFileChange(IFile *file)
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Blocks the monitoring of the file the \a file argument points to.
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*/
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void FileManager::blockFileChange(IFile *file)
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{
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if (!file->fileName().isEmpty())
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m_fileWatcher->removePath(file->fileName());
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}
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/*!
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\fn void FileManager::unblockFileChange(IFile *file)
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Enables the monitoring of the file the \a file argument points to, and update the status of the corresponding IFile's.
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*/
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void FileManager::unblockFileChange(IFile *file)
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{
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foreach (IFile *managedFile, managedFiles(file->fileName()))
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updateFileInfo(managedFile);
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if (!file->fileName().isEmpty())
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m_fileWatcher->addPath(file->fileName());
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}
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void FileManager::updateFileInfo(IFile *file)
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{
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const QString fixedname = fixFileName(file->fileName());
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const QFileInfo fi(file->fileName());
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FileInfo info;
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info.fileName = fixedname;
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info.modified = fi.lastModified();
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info.permissions = fi.permissions();
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m_managedFiles.insert(file, info);
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}
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/*!
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\fn QList<IFile*> FileManager::saveModifiedFilesSilently(const QList<IFile*> &files)
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Tries to save the files listed in \a files . Returns the files that could not be saved.
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*/
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QList<IFile *> FileManager::saveModifiedFilesSilently(const QList<IFile *> &files)
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{
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return saveModifiedFiles(files, 0, true, QString());
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}
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/*!
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\fn QList<IFile*> FileManager::saveModifiedFiles(const QList<IFile*> &files, bool *cancelled, const QString &message)
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Asks the user whether to save the files listed in \a files . Returns the files that have not been saved.
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*/
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QList<IFile *> FileManager::saveModifiedFiles(const QList<IFile *> &files,
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bool *cancelled, const QString &message)
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{
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return saveModifiedFiles(files, cancelled, false, message);
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}
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static QMessageBox::StandardButton skipFailedPrompt(QWidget *parent, const QString &fileName)
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{
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return QMessageBox::question(parent,
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QObject::tr("Can't save file"),
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QObject::tr("Can't save changes to '%1'. Do you want to continue and loose your changes?").arg(fileName),
|
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QMessageBox::YesToAll| QMessageBox::Yes|QMessageBox::No,
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QMessageBox::No);
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}
|
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QList<IFile *> FileManager::saveModifiedFiles(const QList<IFile *> &files,
|
||||
bool *cancelled, bool silently, const QString &message)
|
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{
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if (cancelled)
|
||||
(*cancelled) = false;
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||||
|
||||
QList<IFile *> notSaved;
|
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QMap<IFile*, QString> modifiedFiles;
|
||||
|
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foreach (IFile *file, files) {
|
||||
if (file->isModified()) {
|
||||
QString name = file->fileName();
|
||||
if (name.isEmpty())
|
||||
name = file->suggestedFileName();
|
||||
|
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// There can be several FileInterfaces pointing to the same file
|
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// Select one that is not readonly.
|
||||
if (!(modifiedFiles.values().contains(name)
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&& file->isReadOnly()))
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modifiedFiles.insert(file, name);
|
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}
|
||||
}
|
||||
|
||||
if (!modifiedFiles.isEmpty()) {
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||||
QList<IFile *> filesToSave;
|
||||
QSet<IFile *> filesToOpen;
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if (silently) {
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filesToSave = modifiedFiles.keys();
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} else {
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SaveItemsDialog dia(m_mainWindow, modifiedFiles);
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if (!message.isEmpty())
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dia.setMessage(message);
|
||||
if (dia.exec() != QDialog::Accepted) {
|
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if (cancelled)
|
||||
(*cancelled) = true;
|
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notSaved = modifiedFiles.keys();
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return notSaved;
|
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}
|
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filesToSave = dia.itemsToSave();
|
||||
filesToOpen = dia.itemsToOpen();
|
||||
}
|
||||
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||||
bool yestoall = false;
|
||||
foreach (IFile *file, filesToSave) {
|
||||
if (file->isReadOnly() && filesToOpen.contains(file)) {
|
||||
QString directory = QFileInfo(file->fileName()).absolutePath();
|
||||
IVersionControl *versionControl = m_mainWindow->vcsManager()->findVersionControlForDirectory(directory);
|
||||
if (versionControl)
|
||||
versionControl->vcsOpen(file->fileName());
|
||||
}
|
||||
if (!file->isReadOnly() && !file->fileName().isEmpty()) {
|
||||
blockFileChange(file);
|
||||
const bool ok = file->save();
|
||||
unblockFileChange(file);
|
||||
if (!ok)
|
||||
notSaved.append(file);
|
||||
} else if (QFile::exists(file->fileName()) && !file->isSaveAsAllowed()) {
|
||||
if (yestoall)
|
||||
continue;
|
||||
const QFileInfo fi(file->fileName());
|
||||
switch (skipFailedPrompt(m_mainWindow, fi.fileName())) {
|
||||
case QMessageBox::YesToAll:
|
||||
yestoall = true;
|
||||
break;
|
||||
case QMessageBox::No:
|
||||
if (cancelled)
|
||||
*cancelled = true;
|
||||
return filesToSave;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
QString fileName = getSaveAsFileName(file);
|
||||
bool ok = false;
|
||||
if (!fileName.isEmpty()) {
|
||||
blockFileChange(file);
|
||||
ok = file->save(fileName);
|
||||
unblockFileChange(file);
|
||||
}
|
||||
if (!ok)
|
||||
notSaved.append(file);
|
||||
}
|
||||
}
|
||||
}
|
||||
return notSaved;
|
||||
}
|
||||
|
||||
QString FileManager::getSaveFileNameWithExtension(const QString &title, const QString &path,
|
||||
const QString &fileFilter, const QString &extension)
|
||||
{
|
||||
QString fileName;
|
||||
bool repeat;
|
||||
do {
|
||||
repeat = false;
|
||||
fileName = QFileDialog::getSaveFileName(m_mainWindow, title, path, fileFilter);
|
||||
if (!fileName.isEmpty() && !extension.isEmpty() && !fileName.endsWith(extension)) {
|
||||
fileName.append(extension);
|
||||
if (QFile::exists(fileName)) {
|
||||
if (QMessageBox::warning(m_mainWindow, tr("Overwrite?"),
|
||||
tr("An item named '%1' already exists at this location. Do you want to overwrite it?").arg(fileName),
|
||||
QMessageBox::Yes | QMessageBox::No) == QMessageBox::No)
|
||||
repeat = true;
|
||||
}
|
||||
}
|
||||
} while (repeat);
|
||||
return fileName;
|
||||
}
|
||||
|
||||
/*!
|
||||
\fn QString FileManager::getSaveAsFileName(IFile *file)
|
||||
|
||||
Asks the user for a new file name (Save File As) for /arg file.
|
||||
*/
|
||||
QString FileManager::getSaveAsFileName(IFile *file)
|
||||
{
|
||||
if (!file)
|
||||
return QLatin1String("");
|
||||
QString absoluteFilePath = file->fileName();
|
||||
const QFileInfo fi(absoluteFilePath);
|
||||
QString fileName = fi.fileName();
|
||||
QString path = fi.absolutePath();
|
||||
if (absoluteFilePath.isEmpty()) {
|
||||
fileName = file->suggestedFileName();
|
||||
const QString defaultPath = file->defaultPath();
|
||||
if (!defaultPath.isEmpty())
|
||||
path = defaultPath;
|
||||
}
|
||||
QString filterString;
|
||||
QString preferredSuffix;
|
||||
if (const MimeType mt = m_core->mimeDatabase()->findByFile(fi)) {
|
||||
filterString = mt.filterString();
|
||||
preferredSuffix = mt.preferredSuffix();
|
||||
}
|
||||
|
||||
absoluteFilePath = getSaveFileNameWithExtension(tr("Save File As"),
|
||||
path + QDir::separator() + fileName,
|
||||
filterString,
|
||||
preferredSuffix);
|
||||
return absoluteFilePath;
|
||||
}
|
||||
|
||||
void FileManager::changedFile(const QString &file)
|
||||
{
|
||||
const bool wasempty = m_changedFiles.isEmpty();
|
||||
foreach (IFile *fileinterface, managedFiles(file))
|
||||
m_changedFiles << fileinterface;
|
||||
if (wasempty && !m_changedFiles.isEmpty()) {
|
||||
QTimer::singleShot (200, this, SLOT(checkForReload()));
|
||||
}
|
||||
}
|
||||
|
||||
void FileManager::mainWindowActivated()
|
||||
{
|
||||
checkForReload();
|
||||
}
|
||||
|
||||
void FileManager::checkForReload()
|
||||
{
|
||||
if (QApplication::activeWindow() == m_mainWindow &&
|
||||
!m_blockActivated && !m_changedFiles.isEmpty()) {
|
||||
m_blockActivated = true;
|
||||
const QList<QPointer<IFile> > changed = m_changedFiles;
|
||||
m_changedFiles.clear();
|
||||
IFile::ReloadBehavior behavior =
|
||||
IFile::AskForReload;
|
||||
foreach (IFile *f, changed) {
|
||||
if (!f)
|
||||
continue;
|
||||
QFileInfo fi(f->fileName());
|
||||
FileInfo info = m_managedFiles.value(f);
|
||||
if (info.modified != fi.lastModified()
|
||||
|| info.permissions != fi.permissions()) {
|
||||
if (info.modified != fi.lastModified())
|
||||
f->modified(&behavior);
|
||||
else {
|
||||
IFile::ReloadBehavior tempBeh =
|
||||
IFile::ReloadPermissions;
|
||||
f->modified(&tempBeh);
|
||||
}
|
||||
updateFileInfo(f);
|
||||
|
||||
// the file system watchers loses inodes when a file is removed/renamed. Work around it.
|
||||
m_fileWatcher->removePath(f->fileName());
|
||||
m_fileWatcher->addPath(f->fileName());
|
||||
}
|
||||
}
|
||||
m_blockActivated = false;
|
||||
checkForReload();
|
||||
}
|
||||
}
|
||||
|
||||
void FileManager::syncWithEditor(Core::IContext *context)
|
||||
{
|
||||
if (!context)
|
||||
return;
|
||||
|
||||
Core::IEditor *editor = m_core->editorManager()->currentEditor();
|
||||
if (editor && (editor->widget() == context->widget()))
|
||||
setCurrentFile(editor->file()->fileName());
|
||||
}
|
||||
|
||||
/*!
|
||||
\fn void FileManager::addToRecentFiles(const QString &fileName)
|
||||
|
||||
Adds the \a fileName to the list of recent files.
|
||||
*/
|
||||
void FileManager::addToRecentFiles(const QString &fileName)
|
||||
{
|
||||
if (fileName.isEmpty())
|
||||
return;
|
||||
QString prettyFileName(QDir::toNativeSeparators(fileName));
|
||||
m_recentFiles.removeAll(prettyFileName);
|
||||
if (m_recentFiles.count() > m_maxRecentFiles)
|
||||
m_recentFiles.removeLast();
|
||||
m_recentFiles.prepend(prettyFileName);
|
||||
}
|
||||
|
||||
/*!
|
||||
\fn QStringList FileManager::recentFiles() const
|
||||
|
||||
Returns the list of recent files.
|
||||
*/
|
||||
QStringList FileManager::recentFiles() const
|
||||
{
|
||||
return m_recentFiles;
|
||||
}
|
||||
|
||||
void FileManager::saveRecentFiles()
|
||||
{
|
||||
QSettings *s = m_mainWindow->settings();
|
||||
s->beginGroup(QLatin1String(settingsGroup));
|
||||
s->setValue(QLatin1String(filesKey), m_recentFiles);
|
||||
s->endGroup();
|
||||
}
|
||||
|
||||
/*!
|
||||
|
||||
The current file is e.g. the file currently opened when an editor is active,
|
||||
or the selected file in case a Project Explorer is active ...
|
||||
|
||||
\see currentFile
|
||||
*/
|
||||
void FileManager::setCurrentFile(const QString &filePath)
|
||||
{
|
||||
if (m_currentFile == filePath)
|
||||
return;
|
||||
m_currentFile = filePath;
|
||||
emit currentFileChanged(m_currentFile);
|
||||
}
|
||||
|
||||
/*!
|
||||
Returns the absolute path of the current file
|
||||
|
||||
The current file is e.g. the file currently opened when an editor is active,
|
||||
or the selected file in case a Project Explorer is active ...
|
||||
|
||||
\see setCurrentFile
|
||||
*/
|
||||
QString FileManager::currentFile() const
|
||||
{
|
||||
return m_currentFile;
|
||||
}
|
||||
|
||||
/*!
|
||||
\fn QList<IFile*> FileManager::managedFiles(const QString &fileName) const
|
||||
|
||||
Returns the list one IFile's in the set that point to \a fileName.
|
||||
*/
|
||||
QList<IFile *> FileManager::managedFiles(const QString &fileName) const
|
||||
{
|
||||
const QString fixedName = fixFileName(fileName);
|
||||
QList<IFile *> result;
|
||||
if (!fixedName.isEmpty()) {
|
||||
const QMap<IFile*, FileInfo>::const_iterator cend = m_managedFiles.constEnd();
|
||||
for (QMap<IFile*, FileInfo>::const_iterator i = m_managedFiles.constBegin(); i != cend; ++i) {
|
||||
if (i.value().fileName == fixedName)
|
||||
result << i.key();
|
||||
}
|
||||
}
|
||||
return result;
|
||||
}
|
||||
Reference in New Issue
Block a user