277 lines
7.1 KiB
C++
277 lines
7.1 KiB
C++
/*
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* Copyright 2006-2007 Aaron Seigo <aseigo@kde.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Library General Public License as
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* published by the Free Software Foundation; either version 2, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "runnercontext.h"
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#include <QReadWriteLock>
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#include <QFile>
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#include <QFileInfo>
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#include <QSharedData>
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#include <KCompletion>
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#include <KDebug>
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#include <KMimeType>
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#include <KShell>
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#include <KStandardDirs>
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#include <KUrl>
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#include "searchmatch.h"
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#define LOCK_FOR_READ(context) if (context->d->policy == Shared) { context->d->lock.lockForRead(); }
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#define LOCK_FOR_WRITE(context) if (context->d->policy == Shared) { context->d->lock.lockForWrite(); }
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#define UNLOCK(context) if (context->d->policy == Shared) { context->d->lock.unlock(); }
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/*
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#define LOCK_FOR_READ(context) context->d->lock.lockForRead();
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#define LOCK_FOR_WRITE(context) context->d->lock.lockForWrite();
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#define UNLOCK(context) context->d->lock.unlock();
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*/
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namespace Plasma
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{
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class RunnerContext::Private : public QSharedData
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{
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public:
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Private(RunnerContext *context, RunnerContext::DataPolicy p)
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: QSharedData(),
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type(RunnerContext::UnknownType),
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q(context),
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policy(p)
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{
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}
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Private(const RunnerContext::Private& p)
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: QSharedData(),
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term(p.term),
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mimeType(p.mimeType),
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type(p.type),
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q(p.q),
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policy(p.policy)
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{
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//kDebug() << "¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿¿boo yeah";
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}
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~Private()
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{
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if (policy == Shared) {
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lock.lockForWrite();
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}
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qDeleteAll(matches);
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matches.clear();
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if (policy == Shared) {
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lock.unlock();
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}
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}
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/**
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* Determines type of query
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*/
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void determineType()
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{
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if (policy == Shared) {
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lock.lockForWrite();
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}
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QString path = KShell::tildeExpand(term);
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int space = term.indexOf(' ');
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if (space > 0) {
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if (!KStandardDirs::findExe(path.left(space)).isEmpty()) {
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type = ShellCommand;
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}
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} else if (!KStandardDirs::findExe(path.left(space)).isEmpty()) {
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type = Executable;
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} else {
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KUrl url(term);
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if (!url.protocol().isEmpty() && !url.host().isEmpty()) {
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type = NetworkLocation;
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} else if (QFile::exists(path)) {
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QFileInfo info(path);
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if (info.isDir()) {
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type = Directory;
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mimeType = "inode/folder";
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} else {
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type = File;
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KMimeType::Ptr mimeTypePtr = KMimeType::findByPath(path);
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if (mimeTypePtr) {
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mimeType = mimeTypePtr->name();
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}
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}
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} else if (term.contains('.')) {
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// default to a network location so we can can do things like www.kde.org
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type = NetworkLocation;
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}
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}
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if (policy == Shared) {
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lock.unlock();
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}
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}
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QReadWriteLock lock;
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QList<SearchMatch*> matches;
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QString term;
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QString mimeType;
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RunnerContext::Type type;
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RunnerContext * q;
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const RunnerContext::DataPolicy policy;
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};
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RunnerContext::RunnerContext(QObject *parent, DataPolicy policy)
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: QObject(parent),
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d(new Private(this, policy))
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{
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}
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//copy ctor
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RunnerContext::RunnerContext(RunnerContext &other, QObject *parent)
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: QObject(parent)
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{
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LOCK_FOR_READ((&other))
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d = other.d;
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UNLOCK((&other))
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}
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RunnerContext::~RunnerContext()
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{
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}
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void RunnerContext::reset()
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{
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// Locks are needed as other contexts can be copied of this one
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// We will detach if we are a copy of someone. But we will reset
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// if we are the 'main' context others copied from. Resetting
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// one RunnerContext makes all the copies oneobsolete.
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d.detach();
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LOCK_FOR_WRITE(this)
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//kDebug() << "reset searchContext";
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d->type = RunnerContext::UnknownType;
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d->term.clear();
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d->mimeType.clear();
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UNLOCK(this);
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// we still have to remove all the matches, since if the
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// ref count was 1 (e.g. only the RunnerContext is using
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// the dptr) then we won't get a copy made
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removeAllMatches();
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//kDebug() << "match count" << d->matches.count();
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}
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void RunnerContext::setQuery(const QString &term)
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{
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reset();
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if (term.isEmpty()) {
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return;
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}
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LOCK_FOR_WRITE(this)
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d->term = term;
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UNLOCK(this);
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d->determineType();
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}
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QString RunnerContext::query() const
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{
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LOCK_FOR_READ(this)
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QString term = d->term;
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UNLOCK(this);
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return term;
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}
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RunnerContext::Type RunnerContext::type() const
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{
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return d->type;
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}
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QString RunnerContext::mimeType() const
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{
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return d->mimeType;
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}
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bool RunnerContext::addMatches(const QString& term, const QList<SearchMatch*> &matches)
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{
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if (query() != term || matches.isEmpty()) {
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return false;
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}
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LOCK_FOR_WRITE(this)
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d->matches << matches;
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UNLOCK(this);
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//kDebug()<< "add matches";
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// A copied searchContext may share the d pointer,
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// we always want to sent the signal of the object that created
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// the d pointer
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emit d->q->matchesChanged();
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return true;
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}
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bool RunnerContext::addMatch(const QString &term, SearchMatch *match)
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{
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if (query() != term) {
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return false;
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}
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LOCK_FOR_WRITE(this)
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d->matches << match;
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UNLOCK(this);
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//kDebug()<< "added match" << match->text();
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emit d->q->matchesChanged();
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return true;
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}
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QList<SearchMatch *> RunnerContext::matches() const
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{
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LOCK_FOR_READ(this)
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QList<SearchMatch *> matches = d->matches;
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UNLOCK(this);
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return matches;
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}
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void RunnerContext::removeAllMatches()
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{
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LOCK_FOR_WRITE(this)
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if (!d->matches.isEmpty()) {
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QList<SearchMatch*> matches = d->matches;
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d->matches.clear();
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UNLOCK(this);
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// in case someone is still holding on to the Matches
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// when we emit the matchesChanged() signal, we don't
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// delete the matches until after the signal is handled.
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// a bit safer.
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emit d->q->matchesChanged();
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qDeleteAll(matches);
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} else {
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UNLOCK(this);
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}
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}
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}
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#include "runnercontext.moc"
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