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2022-03-05 22:41:29 +05:00
/*
SPDX-FileCopyrightText: 2003-2007 Craig Drummond <craig@kde.org>
SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "FontViewPart.h"
#include "FcEngine.h"
#include "FontInst.h"
#include "FontInstInterface.h"
#include "PreviewSelectAction.h"
#include "config-workspace.h"
#include <KAboutData>
#include <KActionCollection>
#include <KIO/Job>
#include <KIO/JobUiDelegate>
#include <KIO/StatJob>
#include <KJobWidgets>
#include <KMessageBox>
#include <QBoxLayout>
#include <QFile>
#include <QGroupBox>
#include <QGuiApplication>
#include <QIcon>
#include <QInputDialog>
#include <QLabel>
#include <QMimeDatabase>
#include <QProcess>
#include <QPushButton>
#include <QRegExp>
#include <QSpinBox>
#include <QTimer>
//#include <KFileMetaInfo>
#include "config-fontinst.h"
#include <KPluginFactory>
#include <KStandardAction>
#include <KZip>
#include <QTemporaryDir>
// Enable the following to allow printing of non-installed fonts. Does not seem to work :-(
//#define KFI_PRINT_APP_FONTS
namespace KFI
{
static QString getFamily(const QString &font)
{
int commaPos = font.lastIndexOf(',');
return -1 == commaPos ? font : font.left(commaPos);
}
K_PLUGIN_CLASS_WITH_JSON(CFontViewPart, "kfontviewpart.json")
CFontViewPart::CFontViewPart(QWidget *parentWidget, QObject *parent, const QList<QVariant> &)
: KParts::ReadOnlyPart(parent)
, m_config(KSharedConfig::openConfig())
, m_proc(nullptr)
, m_tempDir(nullptr)
, m_interface(new FontInstInterface())
, m_opening(false)
{
// create browser extension (for printing when embedded into browser)
m_extension = new BrowserExtension(this);
m_frame = new QFrame(parentWidget);
QFrame *previewFrame = new QFrame(m_frame);
QWidget *controls = new QWidget(m_frame);
m_faceWidget = new QWidget(controls);
QBoxLayout *mainLayout = new QBoxLayout(QBoxLayout::TopToBottom, m_frame);
QBoxLayout *previewLayout = new QBoxLayout(QBoxLayout::LeftToRight, previewFrame), *controlsLayout = new QBoxLayout(QBoxLayout::LeftToRight, controls),
*faceLayout = new QBoxLayout(QBoxLayout::LeftToRight, m_faceWidget);
previewLayout->setContentsMargins(0, 0, 0, 0);
previewLayout->setSpacing(0);
faceLayout->setContentsMargins(0, 0, 0, 0);
controlsLayout->setContentsMargins(0, 0, 0, 0);
previewLayout->setSpacing(0);
m_frame->setFrameShape(QFrame::NoFrame);
m_frame->setFocusPolicy(Qt::ClickFocus);
previewFrame->setFrameShape(QFrame::StyledPanel);
previewFrame->setFrameShadow(QFrame::Sunken);
m_preview = new CFontPreview(previewFrame);
m_preview->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding);
m_faceLabel = new QLabel(i18n("Show Face:"), m_faceWidget);
m_faceSelector = new QSpinBox(m_faceWidget);
m_faceSelector->setValue(1);
m_installButton = new QPushButton(i18n("Install…"), controls);
m_installButton->setEnabled(false);
previewLayout->addWidget(m_preview);
faceLayout->addWidget(m_faceLabel);
faceLayout->addWidget(m_faceSelector);
faceLayout->addItem(new QSpacerItem(faceLayout->spacing(), 0, QSizePolicy::Fixed, QSizePolicy::Fixed));
m_faceWidget->hide();
m_preview->engine()->readConfig(*m_config);
controlsLayout->addWidget(m_faceWidget);
controlsLayout->addStretch(1);
controlsLayout->addWidget(m_installButton);
mainLayout->addWidget(previewFrame);
mainLayout->addWidget(controls);
connect(m_preview, &CFontPreview::status, this, &CFontViewPart::previewStatus);
connect(m_installButton, &QAbstractButton::clicked, this, &CFontViewPart::install);
connect(m_faceSelector, SIGNAL(valueChanged(int)), SLOT(showFace(int)));
m_changeTextAction = actionCollection()->addAction("changeText");
m_changeTextAction->setIcon(QIcon::fromTheme("edit-rename"));
m_changeTextAction->setText(i18n("Change Text…"));
connect(m_changeTextAction, &QAction::triggered, this, &CFontViewPart::changeText);
CPreviewSelectAction *displayTypeAction = new CPreviewSelectAction(this, CPreviewSelectAction::BlocksAndScripts);
actionCollection()->addAction("displayType", displayTypeAction);
connect(displayTypeAction, &CPreviewSelectAction::range, this, &CFontViewPart::displayType);
QAction *zoomIn = actionCollection()->addAction(KStandardAction::ZoomIn, m_preview, SLOT(zoomIn())),
*zoomOut = actionCollection()->addAction(KStandardAction::ZoomOut, m_preview, SLOT(zoomOut()));
connect(m_preview, &CFontPreview::atMax, zoomIn, &QAction::setDisabled);
connect(m_preview, &CFontPreview::atMin, zoomOut, &QAction::setDisabled);
setXMLFile("kfontviewpart.rc");
setWidget(m_frame);
m_extension->enablePrint(false);
FontInst::registerTypes();
connect(m_interface, &OrgKdeFontinstInterface::status, this, &CFontViewPart::dbusStatus);
connect(m_interface, &OrgKdeFontinstInterface::fontStat, this, &CFontViewPart::fontStat);
}
CFontViewPart::~CFontViewPart()
{
delete m_tempDir;
m_tempDir = nullptr;
delete m_interface;
m_interface = nullptr;
}
static inline QUrl mostLocalUrl(const QUrl &url, QWidget *widget)
{
auto job = KIO::mostLocalUrl(url);
KJobWidgets::setWindow(job, widget);
job->exec();
return job->mostLocalUrl();
}
bool CFontViewPart::openUrl(const QUrl &url)
{
if (!url.isValid() || !closeUrl()) {
return false;
}
m_fontDetails = FC::decode(url);
if (!m_fontDetails.family.isEmpty() || KFI_KIO_FONTS_PROTOCOL == url.scheme() || mostLocalUrl(url, m_frame).isLocalFile()) {
setUrl(url);
Q_EMIT started(nullptr);
setLocalFilePath(this->url().path());
bool ret = openFile();
if (ret) {
Q_EMIT completed();
}
return ret;
} else {
return ReadOnlyPart::openUrl(url);
}
}
bool CFontViewPart::openFile()
{
// NOTE: Can't do the real open here, as we don't seem to be able to use KIO::NetAccess functions
// during initial start-up. Bug report 111535 indicates that calling "konqueror <font>" crashes.
m_installButton->setEnabled(false);
QTimer::singleShot(0, this, &CFontViewPart::timeout);
return true;
}
static inline bool statUrl(const QUrl &url, KIO::UDSEntry *udsEntry)
{
auto job = KIO::stat(url);
job->exec();
if (job->error()) {
return false;
}
*udsEntry = job->statResult();
return true;
}
void CFontViewPart::timeout()
{
if (!m_installButton) {
return;
}
bool isFonts(KFI_KIO_FONTS_PROTOCOL == url().scheme()), showFs(false), package(false);
int fileIndex(-1);
QString fontFile;
delete m_tempDir;
m_tempDir = nullptr;
m_opening = true;
if (!m_fontDetails.family.isEmpty()) {
Q_EMIT setWindowCaption(FC::createName(m_fontDetails.family, m_fontDetails.styleInfo));
fontFile = FC::getFile(url());
fileIndex = FC::getIndex(url());
} else if (isFonts) {
KIO::UDSEntry udsEntry;
bool found = statUrl(url(), &udsEntry);
if (!found) {
// Check if url is "fonts:/<font> if so try fonts:/System/<font>, then fonts:/Personal<font>
QStringList pathList(url().adjusted(QUrl::StripTrailingSlash).path().split(QLatin1Char('/'), Qt::SkipEmptyParts));
if (pathList.count() == 1) {
found = statUrl(QUrl(QString("fonts:/" + i18n(KFI_KIO_FONTS_SYS) + QLatin1Char('/') + pathList[0])), &udsEntry);
if (!found) {
found = statUrl(QUrl(QString("fonts:/" + i18n(KFI_KIO_FONTS_USER) + QLatin1Char('/') + pathList[0])), &udsEntry);
}
}
}
if (found) {
if (udsEntry.numberValue(KIO::UDSEntry::UDS_HIDDEN, 0)) {
fontFile = udsEntry.stringValue(UDS_EXTRA_FILE_NAME);
fileIndex = udsEntry.numberValue(UDS_EXTRA_FILE_FACE, 0);
}
m_fontDetails.family = getFamily(udsEntry.stringValue(KIO::UDSEntry::UDS_NAME));
m_fontDetails.styleInfo = udsEntry.numberValue(UDS_EXTRA_FC_STYLE);
Q_EMIT setWindowCaption(udsEntry.stringValue(KIO::UDSEntry::UDS_NAME));
} else {
previewStatus(false);
return;
}
} else {
QString path(localFilePath());
// Is this a application/vnd.kde.fontspackage file? If so, extract 1 scalable font...
if ((package = Misc::isPackage(path))) {
KZip zip(path);
if (zip.open(QIODevice::ReadOnly)) {
const KArchiveDirectory *zipDir = zip.directory();
if (zipDir) {
QStringList fonts(zipDir->entries());
if (!fonts.isEmpty()) {
QStringList::ConstIterator it(fonts.begin()), end(fonts.end());
for (; it != end; ++it) {
const KArchiveEntry *entry = zipDir->entry(*it);
if (entry && entry->isFile()) {
delete m_tempDir;
m_tempDir = new QTemporaryDir(QDir::tempPath() + "/" KFI_TMP_DIR_PREFIX);
m_tempDir->setAutoRemove(true);
((KArchiveFile *)entry)->copyTo(m_tempDir->path());
QMimeDatabase db;
QString mime(db.mimeTypeForFile(m_tempDir->filePath(entry->name())).name());
if (mime == "font/ttf" || mime == "font/otf" || mime == "application/x-font-ttf" || mime == "application/x-font-otf"
|| mime == "application/x-font-type1") {
fontFile = m_tempDir->filePath(entry->name());
break;
} else {
::unlink(QFile::encodeName(m_tempDir->filePath(entry->name())).data());
}
}
}
}
}
}
}
}
m_installButton->setEnabled(false);
if (m_fontDetails.family.isEmpty()) {
Q_EMIT setWindowCaption(url().toDisplayString());
} else {
FcInitReinitialize();
}
m_preview->showFont(!package && m_fontDetails.family.isEmpty() ? localFilePath() : fontFile.isEmpty() ? m_fontDetails.family : fontFile,
m_fontDetails.styleInfo,
fileIndex);
if (!isFonts && m_preview->engine()->getNumIndexes() > 1) {
showFs = true;
m_faceSelector->setRange(1, m_preview->engine()->getNumIndexes());
m_faceSelector->setSingleStep(1);
m_faceSelector->blockSignals(true);
m_faceSelector->setValue(1);
m_faceSelector->blockSignals(false);
}
m_faceWidget->setVisible(showFs);
}
void CFontViewPart::previewStatus(bool st)
{
if (m_opening) {
bool printable(false);
if (st) {
checkInstallable();
if (Misc::app(KFI_PRINTER).isEmpty()) {
printable = false;
}
if (KFI_KIO_FONTS_PROTOCOL == url().scheme()) {
printable = !Misc::isHidden(url());
} else if (!FC::decode(url()).family.isEmpty()) {
printable = !Misc::isHidden(FC::getFile(url()));
}
#ifdef KFI_PRINT_APP_FONTS
else {
// TODO: Make this work! Plus, printing of disabled TTF/OTF's should also be possible!
KMimeType::Ptr mime = KMimeType::findByUrl(QUrl::fromLocalFile(localFilePath()), 0, false, true);
printable = mime->is("application/x-font-ttf") || mime->is("application/x-font-otf");
}
#endif
}
m_extension->enablePrint(st && printable);
m_opening = false;
}
m_changeTextAction->setEnabled(st);
if (!st) {
KMessageBox::error(m_frame, i18n("Could not read font."));
}
}
void CFontViewPart::install()
{
if (!m_proc || QProcess::NotRunning == m_proc->state()) {
QStringList args;
if (!m_proc) {
m_proc = new QProcess(this);
} else {
m_proc->kill();
}
QString title = QGuiApplication::applicationDisplayName();
if (title.isEmpty()) {
title = QCoreApplication::applicationName();
}
args << "--embed" << QStringLiteral("0x%1").arg((unsigned int)m_frame->window()->winId(), 0, 16) << "--qwindowtitle" << title << "--qwindowicon"
<< "kfontview" << url().toDisplayString();
connect(m_proc, SIGNAL(finished(int, QProcess::ExitStatus)), SLOT(installlStatus()));
m_proc->start(Misc::app(KFI_INSTALLER), args);
m_installButton->setEnabled(false);
}
}
void CFontViewPart::installlStatus()
{
checkInstallable();
}
void CFontViewPart::dbusStatus(int pid, int status)
{
if (pid == getpid() && FontInst::STATUS_OK != status) {
m_installButton->setEnabled(false);
}
}
void CFontViewPart::fontStat(int pid, const KFI::Family &font)
{
if (pid == getpid()) {
m_installButton->setEnabled(!Misc::app(KFI_INSTALLER).isEmpty() && font.styles().count() == 0);
}
}
void CFontViewPart::changeText()
{
bool status;
QString oldStr(m_preview->engine()->getPreviewString()),
newStr(QInputDialog::getText(m_frame, i18n("Preview String"), i18n("Please enter new string:"), QLineEdit::Normal, oldStr, &status));
if (status && newStr != oldStr) {
m_preview->engine()->setPreviewString(newStr);
m_preview->engine()->writeConfig(*m_config);
m_preview->showFont();
}
}
void CFontViewPart::print()
{
QStringList args;
QString title = QGuiApplication::applicationDisplayName();
if (title.isEmpty()) {
title = QCoreApplication::applicationName();
}
if (!m_fontDetails.family.isEmpty()) {
args << "--embed" << QStringLiteral("0x%1").arg((unsigned int)m_frame->window()->winId(), 0, 16) << "--qwindowtitle" << title << "--qwindowicon"
<< "kfontview"
<< "--size"
<< "0"
<< "--pfont" << QString(m_fontDetails.family + ',' + QString().setNum(m_fontDetails.styleInfo));
}
#ifdef KFI_PRINT_APP_FONTS
else
args << "--embed" << QStringLiteral("0x%1").arg((unsigned int)m_frame->window()->winId(), 0, 16) << "--qwindowtitle" << title << "--qwindowicon"
<< "kfontview"
<< "--size "
<< "0" << localFilePath() << QString().setNum(KFI_NO_STYLE_INFO);
#endif
if (!args.isEmpty()) {
QProcess::startDetached(Misc::app(KFI_PRINTER), args);
}
}
void CFontViewPart::displayType(const QList<CFcEngine::TRange> &range)
{
m_preview->setUnicodeRange(range);
m_changeTextAction->setEnabled(0 == range.count());
}
void CFontViewPart::showFace(int face)
{
m_preview->showFace(face - 1);
}
void CFontViewPart::checkInstallable()
{
if (m_fontDetails.family.isEmpty()) {
if (!QDBusConnection::sessionBus().interface()->isServiceRegistered(OrgKdeFontinstInterface::staticInterfaceName())) {
QProcess::startDetached(QLatin1String(KFONTINST_LIB_EXEC_DIR "/fontinst"), QStringList());
}
m_installButton->setEnabled(false);
m_interface->statFont(m_preview->engine()->descriptiveName(), FontInst::SYS_MASK | FontInst::USR_MASK, getpid());
}
}
BrowserExtension::BrowserExtension(CFontViewPart *parent)
: KParts::BrowserExtension(parent)
{
setURLDropHandlingEnabled(true);
}
void BrowserExtension::enablePrint(bool enable)
{
if (enable != isActionEnabled("print") && (!enable || !Misc::app(KFI_PRINTER).isEmpty())) {
Q_EMIT enableAction("print", enable);
}
}
void BrowserExtension::print()
{
if (!Misc::app(KFI_PRINTER).isEmpty()) {
static_cast<CFontViewPart *>(parent())->print();
}
}
}
#include "FontViewPart.moc"