X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Ffrontends%2Fqt4%2FGuiClipboard.cpp;h=297b828948e45612d0a50456fcfe8ddfe70f4526;hb=8e7d7e42952f0119db1c192386a63d1d9ede3b7f;hp=17f5132f2f71a4dc2ee32fa78550278c08063972;hpb=a5974835455d63711f3f3af20ee06545a37bacca;p=lyx.git diff --git a/src/frontends/qt4/GuiClipboard.cpp b/src/frontends/qt4/GuiClipboard.cpp index 17f5132f2f..297b828948 100644 --- a/src/frontends/qt4/GuiClipboard.cpp +++ b/src/frontends/qt4/GuiClipboard.cpp @@ -17,18 +17,23 @@ #include "GuiClipboard.h" #include "qt_helpers.h" -#include "frontends/alert.h" - #include "Buffer.h" #include "BufferView.h" #include "Cursor.h" +#include "support/lassert.h" #include "support/convert.h" #include "support/debug.h" #include "support/filetools.h" -#include "support/FileFilterList.h" #include "support/gettext.h" #include "support/lstrings.h" +#include "support/lyxtime.h" + +#ifdef Q_WS_MACX +#include "support/linkback/LinkBackProxy.h" +#endif // Q_WS_MACX + +#include "frontends/alert.h" #include #include @@ -36,209 +41,64 @@ #include #include #include -#include #include #include #include -#ifdef Q_WS_WIN -#include -#ifdef Q_CYGWIN_WIN -#include -#endif -#include -#endif // Q_WS_WIN - -#include "boost/assert.hpp" - +#include #include - -#ifdef Q_WS_MACX -#include "support/linkback/LinkBackProxy.h" -#endif // Q_WS_MACX +#include using namespace std; using namespace lyx::support; -static char const * const lyx_mime_type = "application/x-lyx"; -static char const * const pdf_mime_type = "application/pdf"; -static char const * const emf_mime_type = "image/x-emf"; -static char const * const wmf_mime_type = "image/x-wmf"; namespace lyx { namespace frontend { -#ifdef Q_WS_WIN - -static FORMATETC cfFromMime(QString const & mimetype) +static QMimeData const * read_clipboard() { - FORMATETC formatetc; - if (mimetype == emf_mime_type) { - formatetc.cfFormat = CF_ENHMETAFILE; - formatetc.tymed = TYMED_ENHMF; - } else if (mimetype == wmf_mime_type) { - formatetc.cfFormat = CF_METAFILEPICT; - formatetc.tymed = TYMED_MFPICT; + LYXERR(Debug::ACTION, "Getting Clipboard"); + QMimeData const * source = + qApp->clipboard()->mimeData(QClipboard::Clipboard); + if (!source) { + LYXERR0("0 bytes (no QMimeData)"); + return new QMimeData(); } - formatetc.ptd = 0; - formatetc.dwAspect = DVASPECT_CONTENT; - formatetc.lindex = -1; - return formatetc; + // It appears that doing IO between getting a mimeData object + // and using it can cause a crash (maybe Qt used IO + // as an excuse to free() it? Anyway let's not introduce + // any new IO here, so e.g. leave the following line commented. + // lyxerr << "Got Clipboard (" << (long) source << ")\n" ; + return source; } -class QWindowsMimeMetafile : public QWindowsMime { -public: - bool canConvertFromMime(FORMATETC const & formatetc, QMimeData const * mimedata) const; - bool canConvertToMime(QString const & mimetype, IDataObject * pDataObj) const; - bool convertFromMime(FORMATETC const & formatetc, const QMimeData * mimedata, STGMEDIUM * pmedium) const; - QVariant convertToMime(QString const & mimetype, IDataObject * pDataObj, QVariant::Type preferredType) const; - QVector formatsForMime(QString const & mimeType, QMimeData const * mimeData) const; - QString mimeForFormat(FORMATETC const &) const; -}; - - -QString QWindowsMimeMetafile::mimeForFormat(FORMATETC const & formatetc) const -{ - QString f; - if (formatetc.cfFormat == CF_ENHMETAFILE) - f = emf_mime_type; - else if (formatetc.cfFormat == CF_METAFILEPICT) - f = wmf_mime_type; - return f; -} - - -bool QWindowsMimeMetafile::canConvertFromMime(FORMATETC const & formatetc, - QMimeData const * mimedata) const +void CacheMimeData::update() { - return false; -} - - -bool QWindowsMimeMetafile::canConvertToMime(QString const & mimetype, - IDataObject * pDataObj) const -{ - if (mimetype != emf_mime_type && mimetype != wmf_mime_type) - return false; - FORMATETC formatetc = cfFromMime(mimetype); - return pDataObj->QueryGetData(&formatetc) == S_OK; -} - - -bool QWindowsMimeMetafile::convertFromMime(FORMATETC const & formatetc, - QMimeData const * mimedata, STGMEDIUM * pmedium) const -{ - return false; -} - - -QVariant QWindowsMimeMetafile::convertToMime(QString const & mimetype, - IDataObject * pDataObj, QVariant::Type preferredType) const -{ - QByteArray data; - if (!canConvertToMime(mimetype, pDataObj)) - return data; - - FORMATETC formatetc = cfFromMime(mimetype); - STGMEDIUM s; - if (pDataObj->GetData(&formatetc, &s) != S_OK) - return data; - - int dataSize; - if (s.tymed == TYMED_ENHMF) { - dataSize = GetEnhMetaFileBits(s.hEnhMetaFile, 0, 0); - data.resize(dataSize); - dataSize = GetEnhMetaFileBits(s.hEnhMetaFile, dataSize, (LPBYTE)data.data()); - } else if (s.tymed == TYMED_MFPICT) { - dataSize = GetMetaFileBitsEx((HMETAFILE)s.hMetaFilePict, 0, 0); - data.resize(dataSize); - dataSize = GetMetaFileBitsEx((HMETAFILE)s.hMetaFilePict, dataSize, (LPBYTE)data.data()); + time_t const start_time = current_time(); + LYXERR(Debug::ACTION, "Creating CacheMimeData object"); + cached_formats_ = read_clipboard()->formats(); + + // Qt times out after 5 seconds if it does not recieve a response. + if (current_time() - start_time > 3) { + LYXERR0("No timely response from clipboard, perhaps process " + << "holding clipboard is frozen?"); } - data.detach(); - ReleaseStgMedium(&s); - - return data; -} - - -QVector QWindowsMimeMetafile::formatsForMime( - QString const & mimetype, QMimeData const * mimedata) const -{ - QVector formats; - formats += cfFromMime(mimetype); - return formats; } -static QWindowsMimeMetafile * metafileWindowsMime; -#endif // Q_WS_WIN - -#ifdef Q_WS_MACX - -class QMacPasteboardMimeGraphics : public QMacPasteboardMime { -public: - QMacPasteboardMimeGraphics() - : QMacPasteboardMime(MIME_QT_CONVERTOR|MIME_ALL) - {} - QString convertorName(); - QString flavorFor(QString const & mime); - QString mimeFor(QString flav); - bool canConvert(QString const & mime, QString flav); - QVariant convertToMime(QString const & mime, QList data, QString flav); - QList convertFromMime(QString const & mime, QVariant data, QString flav); -}; - - -QString QMacPasteboardMimeGraphics::convertorName() +QByteArray CacheMimeData::data(QString const & mimeType) const { - return "Graphics"; + return read_clipboard()->data(mimeType); } -QString QMacPasteboardMimeGraphics::flavorFor(QString const & mime) -{ - LYXERR(Debug::ACTION, "flavorFor " << fromqstr(mime)); - if (mime == QLatin1String(pdf_mime_type)) - return QLatin1String("com.adobe.pdf"); - return QString(); -} - - -QString QMacPasteboardMimeGraphics::mimeFor(QString flav) -{ - LYXERR(Debug::ACTION, "mimeFor " << fromqstr(flav)); - if (flav == QLatin1String("com.adobe.pdf")) - return QLatin1String(pdf_mime_type); - return QString(); -} - - -bool QMacPasteboardMimeGraphics::canConvert(QString const & mime, QString flav) -{ - return mimeFor(flav) == mime; -} - - -QVariant QMacPasteboardMimeGraphics::convertToMime(QString const & mime, QList data, QString) -{ - if(data.count() > 1) - qWarning("QMacPasteboardMimeGraphics: Cannot handle multiple member data"); - return data.first(); -} - - -QList QMacPasteboardMimeGraphics::convertFromMime(QString const & mime, QVariant data, QString) -{ - QList ret; - ret.append(data.toByteArray()); - return ret; -} - -static QMacPasteboardMimeGraphics * graphicsPasteboardMime; - -#endif // Q_WS_MACX +QString const lyxMimeType(){ return "application/x-lyx"; } +QString const pdfMimeType(){ return "application/pdf"; } +QString const emfMimeType(){ return "image/x-emf"; } +QString const wmfMimeType(){ return "image/x-wmf"; } GuiClipboard::GuiClipboard() @@ -247,24 +107,6 @@ GuiClipboard::GuiClipboard() this, SLOT(on_dataChanged())); // initialize clipboard status. on_dataChanged(); - -#ifdef Q_WS_MACX - if (!graphicsPasteboardMime) - graphicsPasteboardMime = new QMacPasteboardMimeGraphics(); -#endif // Q_WS_MACX - -#ifdef Q_WS_WIN - if (!metafileWindowsMime) - metafileWindowsMime = new QWindowsMimeMetafile(); -#endif // Q_WS_WIN -} - - -GuiClipboard::~GuiClipboard() -{ -#ifdef Q_WS_MACX - closeAllLinkBackLinks(); -#endif // Q_WS_MACX } @@ -273,16 +115,9 @@ string const GuiClipboard::getAsLyX() const LYXERR(Debug::ACTION, "GuiClipboard::getAsLyX(): `"); // We don't convert encodings here since the encoding of the // clipboard contents is specified in the data itself - QMimeData const * source = - qApp->clipboard()->mimeData(QClipboard::Clipboard); - if (!source) { - LYXERR(Debug::ACTION, "' (no QMimeData)"); - return string(); - } - - if (source->hasFormat(lyx_mime_type)) { + if (cache_.hasFormat(lyxMimeType())) { // data from ourself or some other LyX instance - QByteArray const ar = source->data(lyx_mime_type); + QByteArray const ar = cache_.data(lyxMimeType()); string const s(ar.data(), ar.count()); LYXERR(Debug::ACTION, s << "'"); return s; @@ -310,7 +145,7 @@ FileName GuiClipboard::getPastedGraphicsFileName(Cursor const & cur, if (hasGraphicsContents(Clipboard::JpegGraphicsType)) types.push_back(Clipboard::JpegGraphicsType); - BOOST_ASSERT(!types.empty()); + LASSERT(!types.empty(), /**/); // select prefered type if AnyGraphicsType was passed if (type == Clipboard::AnyGraphicsType) @@ -335,7 +170,7 @@ FileName GuiClipboard::getPastedGraphicsFileName(Cursor const & cur, typeNames[Clipboard::JpegGraphicsType] = _("JPEG"); // find unused filename with primary extension - string document_path = cur.buffer().fileName().onlyPath().absFilename(); + string document_path = cur.buffer()->fileName().onlyPath().absFileName(); unsigned newfile_number = 0; FileName filename; do { @@ -348,21 +183,21 @@ FileName GuiClipboard::getPastedGraphicsFileName(Cursor const & cur, while (true) { // create file type filter, putting the prefered on to the front - docstring filterSpec; + QStringList filter; for (size_t i = 0; i != types.size(); ++i) { docstring s = bformat(_("%1$s Files"), typeNames[types[i]]) + " (*." + from_ascii(extensions[types[i]]) + ")"; if (types[i] == type) - filterSpec = s + filterSpec; + filter.prepend(toqstr(s)); else - filterSpec += ";;" + s; + filter.append(toqstr(s)); } - FileFilterList const filter(filterSpec); + filter = fileFilters(filter.join(";;")); // show save dialog for the graphic FileDialog dlg(qt_("Choose a filename to save the pasted graphic as")); FileDialog::Result result = - dlg.save(toqstr(filename.onlyPath().absFilename()), filter, + dlg.save(toqstr(filename.onlyPath().absFileName()), filter, toqstr(filename.onlyFileName())); if (result.first == FileDialog::Later) @@ -376,12 +211,12 @@ FileName GuiClipboard::getPastedGraphicsFileName(Cursor const & cur, filename.set(newFilename); // check the extension (the user could have changed it) - if (!suffixIs(ascii_lowercase(filename.absFilename()), + if (!suffixIs(ascii_lowercase(filename.absFileName()), "." + extensions[type])) { // the user changed the extension. Check if the type is available size_t i; for (i = 1; i != types.size(); ++i) { - if (suffixIs(ascii_lowercase(filename.absFilename()), + if (suffixIs(ascii_lowercase(filename.absFileName()), "." + extensions[types[i]])) { type = types[i]; break; @@ -402,7 +237,7 @@ FileName GuiClipboard::getPastedGraphicsFileName(Cursor const & cur, int ret = frontend::Alert::prompt( _("Overwrite external file?"), bformat(_("File %1$s already exists, do you want to overwrite it?"), - from_utf8(filename.absFilename())), 1, 1, _("&Overwrite"), _("&Cancel")); + from_utf8(filename.absFileName())), 1, 1, _("&Overwrite"), _("&Cancel")); if (ret == 0) // overwrite, hence break the dialog loop break; @@ -435,45 +270,37 @@ FileName GuiClipboard::getAsGraphics(Cursor const & cur, GraphicsType type) cons QBuffer buffer(&ar); buffer.open(QIODevice::WriteOnly); if (type == PngGraphicsType) - image.save(toqstr(filename.absFilename()), "PNG"); + image.save(toqstr(filename.absFileName()), "PNG"); else if (type == JpegGraphicsType) - image.save(toqstr(filename.absFilename()), "JPEG"); + image.save(toqstr(filename.absFileName()), "JPEG"); else - BOOST_ASSERT(false); + LASSERT(false, /**/); return filename; } - // get mime data - QMimeData const * source = - qApp->clipboard()->mimeData(QClipboard::Clipboard); - if (!source) { - LYXERR(Debug::ACTION, "0 bytes (no QMimeData)"); - return FileName(); - } - // get mime for type QString mime; switch (type) { - case PdfGraphicsType: mime = pdf_mime_type; break; - case LinkBackGraphicsType: mime = pdf_mime_type; break; - case EmfGraphicsType: mime = emf_mime_type; break; - case WmfGraphicsType: mime = wmf_mime_type; break; - default: BOOST_ASSERT(false); + case PdfGraphicsType: mime = pdfMimeType(); break; + case LinkBackGraphicsType: mime = pdfMimeType(); break; + case EmfGraphicsType: mime = emfMimeType(); break; + case WmfGraphicsType: mime = wmfMimeType(); break; + default: LASSERT(false, /**/); } // get data - if (!source->hasFormat(mime)) + if (!cache_.hasFormat(mime)) return FileName(); // data from ourself or some other LyX instance - QByteArray const ar = source->data(mime); + QByteArray const ar = cache_.data(mime); LYXERR(Debug::ACTION, "Getting from clipboard: mime = " << mime.data() << "length = " << ar.count()); - QFile f(toqstr(filename.absFilename())); + QFile f(toqstr(filename.absFileName())); if (!f.open(QIODevice::WriteOnly | QIODevice::Truncate)) { LYXERR(Debug::ACTION, "Error opening file " - << filename.absFilename() << " for writing"); + << filename.absFileName() << " for writing"); return FileName(); } @@ -490,7 +317,7 @@ FileName GuiClipboard::getAsGraphics(Cursor const & cur, GraphicsType type) cons ds << pdfLen; // big endian by default #else // only non-Mac this should never happen - BOOST_ASSERT(false); + LASSERT(false, /**/); #endif // Q_WS_MACX } @@ -504,11 +331,11 @@ docstring const GuiClipboard::getAsText() const // text data from other applications QString const str = qApp->clipboard()->text(QClipboard::Clipboard) .normalized(QString::NormalizationForm_C); - LYXERR(Debug::ACTION, "GuiClipboard::getAsText(): `" << fromqstr(str) << "'"); + LYXERR(Debug::ACTION, "GuiClipboard::getAsText(): `" << str << "'"); if (str.isNull()) return docstring(); - return internalLineEnding(qstring_to_ucs4(str)); + return internalLineEnding(str); } @@ -521,7 +348,7 @@ void GuiClipboard::put(string const & lyx, docstring const & text) QMimeData * data = new QMimeData; if (!lyx.empty()) { QByteArray const qlyx(lyx.c_str(), lyx.size()); - data->setData(lyx_mime_type, qlyx); + data->setData(lyxMimeType(), qlyx); } // Don't test for text.empty() since we want to be able to clear the // clipboard. @@ -533,9 +360,13 @@ void GuiClipboard::put(string const & lyx, docstring const & text) bool GuiClipboard::hasLyXContents() const { - QMimeData const * const source = - qApp->clipboard()->mimeData(QClipboard::Clipboard); - return source && source->hasFormat(lyx_mime_type); + return cache_.hasFormat(lyxMimeType()); +} + + +bool GuiClipboard::hasTextContents() const +{ + return cache_.hasText(); } @@ -550,39 +381,34 @@ bool GuiClipboard::hasGraphicsContents(Clipboard::GraphicsType type) const || hasGraphicsContents(LinkBackGraphicsType); } - QMimeData const * const source = - qApp->clipboard()->mimeData(QClipboard::Clipboard); - // handle image cases first if (type == PngGraphicsType || type == JpegGraphicsType) - return source->hasImage(); + return cache_.hasImage(); // handle LinkBack for Mac -#ifdef Q_WS_MACX if (type == LinkBackGraphicsType) +#ifdef Q_WS_MACX return isLinkBackDataInPasteboard(); #else - if (type == LinkBackGraphicsType) return false; #endif // Q_WS_MACX // get mime data - QStringList const & formats = source->formats(); + QStringList const & formats = cache_.formats(); LYXERR(Debug::ACTION, "We found " << formats.size() << " formats"); - for (int i = 0; i < formats.size(); ++i) { - LYXERR(Debug::ACTION, "Found format " << fromqstr(formats[i])); - } + for (int i = 0; i < formats.size(); ++i) + LYXERR(Debug::ACTION, "Found format " << formats[i]); // compute mime for type QString mime; switch (type) { - case EmfGraphicsType: mime = emf_mime_type; break; - case WmfGraphicsType: mime = wmf_mime_type; break; - case PdfGraphicsType: mime = pdf_mime_type; break; - default: BOOST_ASSERT(false); + case EmfGraphicsType: mime = emfMimeType(); break; + case WmfGraphicsType: mime = wmfMimeType(); break; + case PdfGraphicsType: mime = pdfMimeType(); break; + default: LASSERT(false, /**/); } - return source && source->hasFormat(mime); + return cache_.hasFormat(mime); } @@ -611,13 +437,17 @@ bool GuiClipboard::hasInternal() const void GuiClipboard::on_dataChanged() { - QMimeData const * const source = - qApp->clipboard()->mimeData(QClipboard::Clipboard); - QStringList l = source->formats(); + //Note: we do not really need to run cache_.update() unless the + //data has been changed *and* the GuiClipboard has been queried. + //However if run cache_.update() the moment a process grabs the + //clipboard, the process holding the clipboard presumably won't + //yet be frozen, and so we won't need to wait 5 seconds for Qt + //to time-out waiting for the clipboard. + cache_.update(); + QStringList l = cache_.formats(); LYXERR(Debug::ACTION, "Qt Clipboard changed. We found the following mime types:"); - for (int i = 0; i < l.count(); i++) { - LYXERR(Debug::ACTION, fromqstr(l.value(i))); - } + for (int i = 0; i < l.count(); i++) + LYXERR(Debug::ACTION, l.value(i)); text_clipboard_empty_ = qApp->clipboard()-> text(QClipboard::Clipboard).isEmpty(); @@ -641,4 +471,4 @@ bool GuiClipboard::empty() const } // namespace frontend } // namespace lyx -#include "GuiClipboard_moc.cpp" +#include "moc_GuiClipboard.cpp"