[1f4adec] | 1 | /* |
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| 2 | |
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| 3 | Copyright 2012-2013, 2015 Adam Reichold |
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| 4 | |
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| 5 | This file is part of qpdfview. |
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| 6 | |
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| 7 | qpdfview is free software: you can redistribute it and/or modify |
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| 8 | it under the terms of the GNU General Public License as published by |
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| 9 | the Free Software Foundation, either version 2 of the License, or |
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| 10 | (at your option) any later version. |
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| 11 | |
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| 12 | qpdfview is distributed in the hope that it will be useful, |
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| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 15 | GNU General Public License for more details. |
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| 16 | |
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| 17 | You should have received a copy of the GNU General Public License |
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| 18 | along with qpdfview. If not, see <http://www.gnu.org/licenses/>. |
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| 19 | |
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| 20 | */ |
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| 21 | |
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| 22 | #include "pluginhandler.h" |
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| 23 | |
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| 24 | #include <QApplication> |
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| 25 | #include <QDebug> |
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| 26 | #include <QDir> |
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| 27 | #include <QFileInfo> |
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| 28 | #include <QImageReader> |
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| 29 | #include <QMessageBox> |
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| 30 | #include <QPluginLoader> |
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| 31 | |
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| 32 | #if QT_VERSION >= QT_VERSION_CHECK(5,0,0) |
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| 33 | |
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| 34 | #include <QMimeDatabase> |
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| 35 | |
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| 36 | #endif // QT_VERSION |
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| 37 | |
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| 38 | #ifdef WITH_MAGIC |
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| 39 | |
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| 40 | #include <magic.h> |
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| 41 | |
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| 42 | #endif // WITH_MAGIC |
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| 43 | |
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| 44 | #include "model.h" |
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| 45 | |
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| 46 | namespace |
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| 47 | { |
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| 48 | |
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| 49 | using namespace qpdfview; |
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| 50 | |
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| 51 | Plugin* loadStaticPlugin(const QString& objectName) |
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| 52 | { |
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| 53 | foreach(QObject* object, QPluginLoader::staticInstances()) |
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| 54 | { |
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| 55 | if(object->objectName() == objectName) |
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| 56 | { |
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| 57 | Plugin* plugin = qobject_cast< Plugin* >(object); |
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| 58 | |
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| 59 | if(plugin != 0) |
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| 60 | { |
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| 61 | return plugin; |
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| 62 | } |
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| 63 | } |
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| 64 | } |
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| 65 | |
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| 66 | qCritical() << "Could not load static plug-in:" << objectName; |
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| 67 | |
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| 68 | return 0; |
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| 69 | } |
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| 70 | |
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| 71 | Plugin* loadPlugin(const QString& fileName) |
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| 72 | { |
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[9e3d987] | 73 | //QPluginLoader pluginLoader(QDir(QApplication::applicationDirPath()).absoluteFilePath(fileName)); |
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| 74 | QPluginLoader pluginLoader("/usr/lib/terepaima/"+fileName); |
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| 75 | |
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| 76 | //qDebug("****loadPlugin****"); |
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| 77 | //qDebug() << QDir(QApplication::applicationDirPath()).absoluteFilePath(fileName); |
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| 78 | //qDebug("******************"); |
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[1f4adec] | 79 | |
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| 80 | if(!pluginLoader.load()) |
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| 81 | { |
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| 82 | const QString firstFileName = pluginLoader.fileName(); |
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| 83 | const QString firstErrorString = pluginLoader.errorString(); |
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| 84 | |
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| 85 | pluginLoader.setFileName(QDir(PLUGIN_INSTALL_PATH).absoluteFilePath(fileName)); |
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[9e3d987] | 86 | //qDebug("loadPlugin failed:"); |
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| 87 | //qDebug() << QDir(QApplication::applicationDirPath()).absoluteFilePath(fileName) << "endl"; |
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[1f4adec] | 88 | |
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| 89 | if(!pluginLoader.load()) |
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| 90 | { |
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| 91 | qCritical() << "Could not load plug-in in first attempt:" << firstFileName; |
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| 92 | qCritical() << firstErrorString; |
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| 93 | |
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| 94 | qCritical() << "Could not load plug-in in second attempt:" << pluginLoader.fileName(); |
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| 95 | qCritical() << pluginLoader.errorString(); |
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| 96 | |
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| 97 | return 0; |
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| 98 | } |
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| 99 | } |
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| 100 | |
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| 101 | Plugin* plugin = qobject_cast< Plugin* >(pluginLoader.instance()); |
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| 102 | |
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| 103 | if(plugin == 0) |
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| 104 | { |
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| 105 | qCritical() << "Could not instantiate plug-in:" << pluginLoader.fileName(); |
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| 106 | qCritical() << pluginLoader.errorString(); |
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| 107 | } |
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| 108 | |
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| 109 | return plugin; |
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| 110 | } |
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| 111 | |
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| 112 | #if QT_VERSION >= QT_VERSION_CHECK(5,0,0) |
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| 113 | |
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| 114 | bool isSupportedImageFormat(const QMimeType& mimeType) |
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| 115 | { |
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| 116 | const QByteArray name = mimeType.name().toLocal8Bit(); |
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| 117 | |
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| 118 | return QImageReader::supportedMimeTypes().contains(name); |
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| 119 | } |
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| 120 | |
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| 121 | #else |
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| 122 | |
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| 123 | bool isSupportedImageFormat(const QString& fileName) |
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| 124 | { |
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| 125 | return !QImageReader::imageFormat(fileName).isEmpty(); |
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| 126 | } |
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| 127 | |
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| 128 | #endif // QT_VERSION |
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| 129 | |
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| 130 | QStringList supportedImageFormats() |
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| 131 | { |
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| 132 | QStringList formats; |
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| 133 | |
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| 134 | foreach(const QByteArray& format, QImageReader::supportedImageFormats()) |
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| 135 | { |
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| 136 | const QString name = QString::fromLocal8Bit(format); |
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| 137 | |
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| 138 | formats.append(QLatin1String("*.") + name); |
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| 139 | } |
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| 140 | |
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| 141 | return formats; |
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| 142 | } |
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| 143 | |
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| 144 | const char* const pdfMimeType = "application/pdf"; |
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| 145 | const char* const psMimeType = "application/postscript"; |
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| 146 | const char* const djvuMimeType = "image/vnd.djvu"; |
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| 147 | |
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| 148 | PluginHandler::FileType matchFileType(const QString& filePath) |
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| 149 | { |
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| 150 | PluginHandler::FileType fileType = PluginHandler::Unknown; |
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| 151 | |
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| 152 | #if QT_VERSION >= QT_VERSION_CHECK(5,0,0) |
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| 153 | |
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| 154 | const QMimeType mimeType = QMimeDatabase().mimeTypeForFile(filePath, QMimeDatabase::MatchContent); |
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| 155 | |
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| 156 | if(mimeType.inherits(pdfMimeType)) |
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| 157 | { |
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| 158 | fileType = PluginHandler::PDF; |
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| 159 | } |
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| 160 | else if(mimeType.inherits(psMimeType)) |
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| 161 | { |
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| 162 | fileType = PluginHandler::PS; |
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| 163 | } |
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| 164 | else if(mimeType.inherits(djvuMimeType)) |
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| 165 | { |
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| 166 | fileType = PluginHandler::DjVu; |
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| 167 | } |
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| 168 | else if(isSupportedImageFormat(mimeType)) |
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| 169 | { |
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| 170 | fileType = PluginHandler::Image; |
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| 171 | } |
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| 172 | else |
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| 173 | { |
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| 174 | qDebug() << "Unknown MIME type:" << mimeType.name(); |
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| 175 | } |
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| 176 | |
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| 177 | #else |
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| 178 | |
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| 179 | #ifdef WITH_MAGIC |
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| 180 | |
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| 181 | magic_t cookie = magic_open(MAGIC_MIME_TYPE | MAGIC_SYMLINK); |
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| 182 | |
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| 183 | if(magic_load(cookie, 0) == 0) |
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| 184 | { |
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| 185 | const char* mimeType = magic_file(cookie, QFile::encodeName(filePath)); |
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| 186 | |
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| 187 | if(qstrncmp(mimeType, pdfMimeType, qstrlen(pdfMimeType)) == 0) |
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| 188 | { |
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| 189 | fileType = PluginHandler::PDF; |
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| 190 | } |
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| 191 | else if(qstrncmp(mimeType, psMimeType, qstrlen(psMimeType)) == 0) |
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| 192 | { |
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| 193 | fileType = PluginHandler::PS; |
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| 194 | } |
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| 195 | else if(qstrncmp(mimeType, djvuMimeType, qstrlen(djvuMimeType)) == 0) |
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| 196 | { |
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| 197 | fileType = PluginHandler::DjVu; |
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| 198 | } |
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| 199 | else if(isSupportedImageFormat(filePath)) |
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| 200 | { |
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| 201 | fileType = PluginHandler::Image; |
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| 202 | } |
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| 203 | else |
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| 204 | { |
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| 205 | qDebug() << "Unknown MIME type:" << mimeType; |
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| 206 | } |
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| 207 | } |
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| 208 | |
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| 209 | magic_close(cookie); |
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| 210 | |
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| 211 | #else |
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| 212 | |
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| 213 | const QString suffix = QFileInfo(filePath).suffix().toLower(); |
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| 214 | |
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| 215 | if(suffix == QLatin1String("pdf")) |
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| 216 | { |
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| 217 | fileType = PluginHandler::PDF; |
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| 218 | } |
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| 219 | else if(suffix == QLatin1String("ps") || suffix == QLatin1String("eps")) |
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| 220 | { |
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| 221 | fileType = PluginHandler::PS; |
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| 222 | } |
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| 223 | else if(suffix == QLatin1String("djvu") || suffix == QLatin1String("djv")) |
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| 224 | { |
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| 225 | fileType = PluginHandler::DjVu; |
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| 226 | } |
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| 227 | else if(isSupportedImageFormat(filePath)) |
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| 228 | { |
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| 229 | fileType = PluginHandler::Image; |
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| 230 | } |
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| 231 | else |
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| 232 | { |
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| 233 | qDebug() << "Unkown file suffix:" << suffix; |
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| 234 | } |
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| 235 | |
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| 236 | #endif // WITH_MAGIC |
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| 237 | |
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| 238 | #endif // QT_VERSION |
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| 239 | |
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| 240 | return fileType; |
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| 241 | } |
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| 242 | |
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| 243 | } // anonymous |
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| 244 | |
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| 245 | namespace qpdfview |
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| 246 | { |
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| 247 | |
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| 248 | PluginHandler* PluginHandler::s_instance = 0; |
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| 249 | |
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| 250 | PluginHandler* PluginHandler::instance() |
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| 251 | { |
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| 252 | if(s_instance == 0) |
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| 253 | { |
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| 254 | s_instance = new PluginHandler(qApp); |
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| 255 | } |
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| 256 | |
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| 257 | return s_instance; |
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| 258 | } |
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| 259 | |
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| 260 | PluginHandler::~PluginHandler() |
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| 261 | { |
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| 262 | s_instance = 0; |
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| 263 | } |
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| 264 | |
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| 265 | QString PluginHandler::fileTypeName(PluginHandler::FileType fileType) |
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| 266 | { |
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| 267 | switch(fileType) |
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| 268 | { |
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| 269 | default: |
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| 270 | case PluginHandler::Unknown: |
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| 271 | return QLatin1String("Unknown"); |
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| 272 | case PluginHandler::PDF: |
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| 273 | return QLatin1String("PDF"); |
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| 274 | case PluginHandler::PS: |
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| 275 | return QLatin1String("PS"); |
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| 276 | case PluginHandler::DjVu: |
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| 277 | return QLatin1String("DjVu"); |
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| 278 | case PluginHandler::Image: |
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| 279 | return QLatin1String("Image"); |
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| 280 | } |
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| 281 | } |
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| 282 | |
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| 283 | QStringList PluginHandler::openFilter() |
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| 284 | { |
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| 285 | QStringList openFilter; |
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| 286 | QStringList supportedFormats; |
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| 287 | |
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| 288 | #if defined(WITH_PDF) || defined(WITH_FITZ) |
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| 289 | |
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| 290 | openFilter.append(QLatin1String("Portable document format (*.pdf)")); |
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| 291 | supportedFormats.append(QLatin1String("*.pdf")); |
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| 292 | |
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| 293 | #endif // WITH_PDF // WITH_FITZ |
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| 294 | |
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| 295 | #ifdef WITH_PS |
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| 296 | |
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| 297 | openFilter.append(QLatin1String("PostScript (*.ps)")); |
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| 298 | openFilter.append(QLatin1String("Encapsulated PostScript (*.eps)")); |
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| 299 | supportedFormats.append(QLatin1String("*.ps *.eps")); |
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| 300 | |
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| 301 | #endif // WITH_PS |
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| 302 | |
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| 303 | #ifdef WITH_DJVU |
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| 304 | |
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| 305 | openFilter.append(QLatin1String("DjVu (*.djvu *.djv)")); |
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| 306 | supportedFormats.append(QLatin1String("*.djvu *.djv")); |
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| 307 | |
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| 308 | #endif // WITH_DJVU |
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| 309 | |
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| 310 | #ifdef WITH_IMAGE |
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| 311 | |
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| 312 | const QStringList imageFormats = supportedImageFormats(); |
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| 313 | |
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| 314 | openFilter.append(tr("Image (%1)").arg(imageFormats.join(QLatin1String(" ")))); |
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| 315 | supportedFormats.append(imageFormats); |
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| 316 | |
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| 317 | #endif // WITH_IMAGE |
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| 318 | |
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| 319 | openFilter.prepend(tr("Supported formats (%1)").arg(supportedFormats.join(QLatin1String(" ")))); |
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| 320 | |
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| 321 | return openFilter; |
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| 322 | } |
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| 323 | |
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| 324 | Model::Document* PluginHandler::loadDocument(const QString& filePath) |
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| 325 | { |
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| 326 | const FileType fileType = matchFileType(filePath); |
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| 327 | |
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| 328 | if(fileType == Unknown) |
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| 329 | { |
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| 330 | qWarning() << tr("Could not match file type of '%1'!").arg(filePath); |
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| 331 | |
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| 332 | return 0; |
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| 333 | } |
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| 334 | |
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| 335 | if(!loadPlugin(fileType)) |
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| 336 | { |
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| 337 | QMessageBox::critical(0, tr("Critical"), tr("Could not load plug-in for file type '%1'!").arg(fileTypeName(fileType))); |
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| 338 | |
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| 339 | return 0; |
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| 340 | } |
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| 341 | |
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| 342 | return m_plugins.value(fileType)->loadDocument(filePath); |
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| 343 | } |
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| 344 | |
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| 345 | SettingsWidget* PluginHandler::createSettingsWidget(FileType fileType, QWidget* parent) |
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| 346 | { |
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| 347 | return loadPlugin(fileType) ? m_plugins.value(fileType)->createSettingsWidget(parent) : 0; |
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| 348 | } |
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| 349 | |
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| 350 | PluginHandler::PluginHandler(QObject* parent) : QObject(parent), |
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| 351 | m_plugins() |
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| 352 | { |
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| 353 | #ifdef WITH_IMAGE |
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| 354 | #ifdef STATIC_IMAGE_PLUGIN |
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| 355 | m_objectNames.insertMulti(Image, QLatin1String("ImagePlugin")); |
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| 356 | #else |
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| 357 | m_fileNames.insertMulti(Image, QLatin1String(IMAGE_PLUGIN_NAME)); |
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| 358 | #endif // STATIC_IMAGE_PLUGIN |
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| 359 | #endif // WITH_IMAGE |
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| 360 | |
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| 361 | #ifdef WITH_FITZ |
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| 362 | #ifdef STATIC_FITZ_PLUGIN |
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| 363 | m_objectNames.insertMulti(PDF, QLatin1String("FitzPlugin")); |
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| 364 | #else |
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| 365 | m_fileNames.insertMulti(PDF, QLatin1String(FITZ_PLUGIN_NAME)); |
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| 366 | #endif // STATIC_FITZ_PLUGIN |
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| 367 | #endif // WITH_FITZ |
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| 368 | |
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| 369 | #ifdef WITH_PDF |
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| 370 | #ifdef STATIC_PDF_PLUGIN |
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| 371 | m_objectNames.insertMulti(PDF, QLatin1String("PdfPlugin")); |
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| 372 | #else |
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| 373 | m_fileNames.insertMulti(PDF, QLatin1String(PDF_PLUGIN_NAME)); |
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| 374 | #endif // STATIC_PDF_PLUGIN |
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| 375 | #endif // WITH_PDF |
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| 376 | |
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| 377 | #ifdef WITH_PS |
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| 378 | #ifdef STATIC_PS_PLUGIN |
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| 379 | m_objectNames.insertMulti(PS, QLatin1String("PsPlugin")); |
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| 380 | #else |
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| 381 | m_fileNames.insertMulti(PS, QLatin1String(PS_PLUGIN_NAME)); |
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| 382 | #endif // STATIC_PS_PLUGIN |
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| 383 | #endif // WITH_PS |
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| 384 | |
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| 385 | #ifdef WITH_DJVU |
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| 386 | #ifdef STATIC_DJVU_PLUGIN |
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| 387 | m_objectNames.insertMulti(DjVu, QLatin1String("DjVuPlugin")); |
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| 388 | #else |
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| 389 | m_fileNames.insertMulti(DjVu, QLatin1String(DJVU_PLUGIN_NAME)); |
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| 390 | #endif // STATIC_DJVU_PLUGIN |
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| 391 | #endif // WITH_DJVU |
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| 392 | } |
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| 393 | |
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| 394 | bool PluginHandler::loadPlugin(FileType fileType) |
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| 395 | { |
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| 396 | if(m_plugins.contains(fileType)) |
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| 397 | { |
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| 398 | return true; |
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| 399 | } |
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| 400 | |
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| 401 | foreach(const QString& objectName, m_objectNames.values(fileType)) |
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| 402 | { |
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| 403 | if(Plugin* plugin = ::loadStaticPlugin(objectName)) |
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| 404 | { |
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| 405 | m_plugins.insert(fileType, plugin); |
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| 406 | |
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| 407 | return true; |
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| 408 | } |
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| 409 | } |
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| 410 | |
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| 411 | foreach(const QString& fileName, m_fileNames.values(fileType)) |
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| 412 | { |
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| 413 | if(Plugin* plugin = ::loadPlugin(fileName)) |
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| 414 | { |
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| 415 | m_plugins.insert(fileType, plugin); |
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| 416 | |
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| 417 | return true; |
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| 418 | } |
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| 419 | } |
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| 420 | |
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| 421 | return false; |
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| 422 | } |
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| 423 | |
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| 424 | } // qpdfview |
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| 425 | |
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| 426 | #ifdef STATIC_IMAGE_PLUGIN |
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| 427 | #if QT_VERSION < QT_VERSION_CHECK(5,0,0) |
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| 428 | Q_IMPORT_PLUGIN(qpdfview_image) |
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| 429 | #else |
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| 430 | Q_IMPORT_PLUGIN(ImagePlugin) |
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| 431 | #endif // QT_VERSION |
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| 432 | #endif // STATIC_IMAGE_PLUGIN |
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| 433 | |
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| 434 | #ifdef STATIC_FITZ_PLUGIN |
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| 435 | #if QT_VERSION < QT_VERSION_CHECK(5,0,0) |
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| 436 | Q_IMPORT_PLUGIN(qpdfview_fitz) |
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| 437 | #else |
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| 438 | Q_IMPORT_PLUGIN(FitzPlugin) |
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| 439 | #endif // QT_VERSION |
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| 440 | #endif // STATIC_FITZ_PLUGIN |
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| 441 | |
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| 442 | #ifdef STATIC_PDF_PLUGIN |
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| 443 | #if QT_VERSION < QT_VERSION_CHECK(5,0,0) |
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| 444 | Q_IMPORT_PLUGIN(qpdfview_pdf) |
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| 445 | #else |
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| 446 | Q_IMPORT_PLUGIN(PdfPlugin) |
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| 447 | #endif // QT_VERSION |
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| 448 | #endif // STATIC_PDF_PLUGIN |
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| 449 | |
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| 450 | #ifdef STATIC_PS_PLUGIN |
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| 451 | #if QT_VERSION < QT_VERSION_CHECK(5,0,0) |
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| 452 | Q_IMPORT_PLUGIN(qpdfview_ps) |
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| 453 | #else |
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| 454 | Q_IMPORT_PLUGIN(PsPlugin) |
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| 455 | #endif // QT_VERSION |
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| 456 | #endif // STATIC_PS_PLUGIN |
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| 457 | |
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| 458 | #ifdef STATIC_DJVU_PLUGIN |
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| 459 | #if QT_VERSION < QT_VERSION_CHECK(5,0,0) |
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| 460 | Q_IMPORT_PLUGIN(qpdfview_djvu) |
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| 461 | #else |
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| 462 | Q_IMPORT_PLUGIN(DjvuPlugin) |
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| 463 | #endif // QT_VERSION |
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| 464 | #endif // STATIC_DJVU_PLUGIN |
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