#include "FileDialog.h"
+#include "support/FileName.h"
#include "GuiClipboard.h"
#include "qt_helpers.h"
#include "support/filetools.h"
#include "support/gettext.h"
#include "support/lstrings.h"
+#include "support/lyxtime.h"
-#ifdef Q_WS_MACX
+#ifdef Q_OS_MAC
#include "support/linkback/LinkBackProxy.h"
-#endif // Q_WS_MACX
+#endif // Q_OS_MAC
#include "frontends/alert.h"
#include <QMimeData>
#include <QString>
#include <QStringList>
+#include <QTextDocument>
+#include <QTimer>
+
+#include <boost/crc.hpp>
#include <memory>
#include <map>
+#include <iostream>
using namespace std;
using namespace lyx::support;
namespace frontend {
+static QMimeData const * read_clipboard()
+{
+ LYXERR(Debug::CLIPBOARD, "Getting Clipboard");
+ QMimeData const * source =
+ qApp->clipboard()->mimeData(QClipboard::Clipboard);
+ if (!source) {
+ LYXERR0("0 bytes (no QMimeData)");
+ return new QMimeData;
+ }
+ // 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;
+}
+
+
+void CacheMimeData::update()
+{
+ time_t const start_time = current_time();
+ LYXERR(Debug::CLIPBOARD, "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?");
+ }
+}
+
+
+QByteArray CacheMimeData::data(QString const & mimeType) const
+{
+ return read_clipboard()->data(mimeType);
+}
+
QString const lyxMimeType(){ return "application/x-lyx"; }
+QString const texMimeType(){ return "text/x-tex"; }
+QString const latexMimeType(){ return "application/x-latex"; }
QString const pdfMimeType(){ return "application/pdf"; }
QString const emfMimeType(){ return "image/x-emf"; }
QString const wmfMimeType(){ return "image/x-wmf"; }
connect(qApp->clipboard(), SIGNAL(dataChanged()),
this, SLOT(on_dataChanged()));
// initialize clipboard status.
- on_dataChanged();
+ update();
}
string const GuiClipboard::getAsLyX() const
{
- LYXERR(Debug::ACTION, "GuiClipboard::getAsLyX(): `");
+ LYXERR(Debug::CLIPBOARD, "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(lyxMimeType())) {
+ if (cache_.hasFormat(lyxMimeType())) {
// data from ourself or some other LyX instance
- QByteArray const ar = source->data(lyxMimeType());
+ QByteArray const ar = cache_.data(lyxMimeType());
string const s(ar.data(), ar.count());
- LYXERR(Debug::ACTION, s << "'");
+ LYXERR(Debug::CLIPBOARD, s << "'");
return s;
}
- LYXERR(Debug::ACTION, "'");
+ LYXERR(Debug::CLIPBOARD, "'");
return string();
}
types.push_back(Clipboard::PngGraphicsType);
if (hasGraphicsContents(Clipboard::JpegGraphicsType))
types.push_back(Clipboard::JpegGraphicsType);
-
- LASSERT(!types.empty(), /**/);
-
+
+ LASSERT(!types.empty(), return FileName());
+
// select prefered type if AnyGraphicsType was passed
if (type == Clipboard::AnyGraphicsType)
type = types.front();
-
+
// which extension?
map<Clipboard::GraphicsType, string> extensions;
map<Clipboard::GraphicsType, docstring> typeNames;
-
+
extensions[Clipboard::EmfGraphicsType] = "emf";
extensions[Clipboard::WmfGraphicsType] = "wmf";
extensions[Clipboard::LinkBackGraphicsType] = "linkback";
extensions[Clipboard::PdfGraphicsType] = "pdf";
extensions[Clipboard::PngGraphicsType] = "png";
extensions[Clipboard::JpegGraphicsType] = "jpeg";
-
+
typeNames[Clipboard::EmfGraphicsType] = _("Enhanced Metafile");
typeNames[Clipboard::WmfGraphicsType] = _("Windows Metafile");
typeNames[Clipboard::LinkBackGraphicsType] = _("LinkBack PDF");
typeNames[Clipboard::PdfGraphicsType] = _("PDF");
typeNames[Clipboard::PngGraphicsType] = _("PNG");
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 {
+ convert<string>(newfile_number) + "."
+ extensions[type]));
} while (filename.isReadableFile());
-
+
while (true) {
// create file type filter, putting the prefered on to the front
QStringList filter;
filter.append(toqstr(s));
}
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)
return FileName();
-
+
string newFilename = fromqstr(result.second);
if (newFilename.empty()) {
cur.bv().message(_("Canceled."));
return FileName();
}
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;
}
}
-
+
// invalid extension found, or none at all. In the latter
// case set the default extensions.
if (i == types.size()
filename.changeExtension("." + extensions[type]);
}
}
-
+
// check whether the file exists and warn the user
if (!filename.exists())
break;
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;
-
+
// not overwrite, hence show the dialog again (i.e. loop)
}
-
+
return filename;
}
// get image from QImage from clipboard
QImage image = qApp->clipboard()->image();
if (image.isNull()) {
- LYXERR(Debug::ACTION, "No image in clipboard");
+ LYXERR(Debug::CLIPBOARD, "No image in clipboard");
return FileName();
}
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
- LASSERT(false, /**/);
-
+ LATTEST(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 LinkBackGraphicsType: mime = pdfMimeType(); break;
case EmfGraphicsType: mime = emfMimeType(); break;
case WmfGraphicsType: mime = wmfMimeType(); break;
- default: LASSERT(false, /**/);
+ default: LASSERT(false, return FileName());
}
-
+
// 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);
- LYXERR(Debug::ACTION, "Getting from clipboard: mime = " << mime.data()
+ QByteArray const ar = cache_.data(mime);
+ LYXERR(Debug::CLIPBOARD, "Getting from clipboard: mime = " << mime.constData()
<< "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");
+ LYXERR(Debug::CLIPBOARD, "Error opening file "
+ << filename.absFileName() << " for writing");
return FileName();
}
-
+
// write the (LinkBack) PDF data
f.write(ar);
if (type == LinkBackGraphicsType) {
-#ifdef Q_WS_MACX
+#ifdef Q_OS_MAC
void const * linkBackData;
unsigned linkBackLen;
getLinkBackData(&linkBackData, &linkBackLen);
ds << pdfLen; // big endian by default
#else
// only non-Mac this should never happen
- LASSERT(false, /**/);
-#endif // Q_WS_MACX
+ LATTEST(false);
+#endif // Q_OS_MAC
}
f.close();
}
-docstring const GuiClipboard::getAsText() const
+namespace {
+/**
+ * Tidy up a HTML chunk coming from the clipboard.
+ * This is needed since different applications put different kinds of HTML
+ * on the clipboard:
+ * - With or without the <?xml> tag
+ * - With or without the <!DOCTYPE> tag
+ * - With or without the <html> tag
+ * - With or without the <body> tag
+ * - With or without the <p> tag
+ * Since we are going to write a HTML file for external converters we need
+ * to ensure that it is a well formed HTML file, including all the mentioned tags.
+ */
+QString tidyHtml(QString input)
+{
+ // Misuse QTextDocument to cleanup the HTML.
+ // As a side effect, all visual markup like <tt> is converted to CSS,
+ // which is ignored by gnuhtml2latex.
+ // While this may be seen as a bug by some people it is actually a
+ // good thing, since we do import structure, but ignore all visual
+ // clutter.
+ QTextDocument converter;
+ converter.setHtml(input);
+ return converter.toHtml("utf-8");
+}
+}
+
+
+docstring const GuiClipboard::getAsText(TextType type) const
{
// text data from other applications
- QString const str = qApp->clipboard()->text(QClipboard::Clipboard)
+ if ((type == AnyTextType || type == LyXOrPlainTextType) && hasTextContents(LyXTextType))
+ type = LyXTextType;
+ if (type == AnyTextType && hasTextContents(LaTeXTextType))
+ type = LaTeXTextType;
+ if (type == AnyTextType && hasTextContents(HtmlTextType))
+ type = HtmlTextType;
+ QString str;
+ switch (type) {
+ case LyXTextType:
+ // must not convert to docstring, since file can contain
+ // mixed encodings (use getAsLyX() instead)
+ break;
+ case AnyTextType:
+ case LyXOrPlainTextType:
+ case PlainTextType:
+ str = qApp->clipboard()->text(QClipboard::Clipboard)
+ .normalized(QString::NormalizationForm_C);
+ break;
+ case LaTeXTextType: {
+ QMimeData const * source =
+ qApp->clipboard()->mimeData(QClipboard::Clipboard);
+ if (source) {
+ // First try LaTeX, then TeX (we do not distinguish
+ // for clipboard purposes)
+ if (source->hasFormat(latexMimeType())) {
+ str = source->data(latexMimeType());
+ str = str.normalized(QString::NormalizationForm_C);
+ } else if (source->hasFormat(texMimeType())) {
+ str = source->data(texMimeType());
+ str = str.normalized(QString::NormalizationForm_C);
+ }
+ }
+ break;
+ }
+ case HtmlTextType: {
+ QString subtype = "html";
+ str = qApp->clipboard()->text(subtype, QClipboard::Clipboard)
.normalized(QString::NormalizationForm_C);
- LYXERR(Debug::ACTION, "GuiClipboard::getAsText(): `" << str << "'");
+ str = tidyHtml(str);
+ break;
+ }
+ }
+ LYXERR(Debug::CLIPBOARD, "GuiClipboard::getAsText(" << type << "): `" << str << "'");
if (str.isNull())
return docstring();
}
-void GuiClipboard::put(string const & lyx, docstring const & text)
+void GuiClipboard::put(string const & text) const
{
- LYXERR(Debug::ACTION, "GuiClipboard::put(`" << lyx << "' `"
- << to_utf8(text) << "')");
+ qApp->clipboard()->setText(toqstr(text));
+}
+
+
+void GuiClipboard::put(string const & lyx, docstring const & html, docstring const & text)
+{
+ LYXERR(Debug::CLIPBOARD, "GuiClipboard::put(`" << lyx << "' `"
+ << to_utf8(html) << "' `" << to_utf8(text) << "')");
// We don't convert the encoding of lyx since the encoding of the
// clipboard contents is specified in the data itself
QMimeData * data = new QMimeData;
if (!lyx.empty()) {
QByteArray const qlyx(lyx.c_str(), lyx.size());
data->setData(lyxMimeType(), qlyx);
+ // If the OS has not the concept of clipboard ownership,
+ // we recognize internal data through its checksum.
+ if (!hasInternal()) {
+ boost::crc_32_type crc32;
+ crc32.process_bytes(lyx.c_str(), lyx.size());
+ checksum = crc32.checksum();
+ }
}
// Don't test for text.empty() since we want to be able to clear the
// clipboard.
QString const qtext = toqstr(text);
data->setText(qtext);
+ QString const qhtml = toqstr(html);
+ data->setHtml(qhtml);
qApp->clipboard()->setMimeData(data, QClipboard::Clipboard);
}
-bool GuiClipboard::hasLyXContents() const
+bool GuiClipboard::hasTextContents(Clipboard::TextType type) const
{
- QMimeData const * const source =
- qApp->clipboard()->mimeData(QClipboard::Clipboard);
- return source && source->hasFormat(lyxMimeType());
+ switch (type) {
+ case AnyTextType:
+ return cache_.hasFormat(lyxMimeType()) || cache_.hasText() ||
+ cache_.hasHtml() || cache_.hasFormat(latexMimeType()) ||
+ cache_.hasFormat(texMimeType());
+ case LyXOrPlainTextType:
+ return cache_.hasFormat(lyxMimeType()) || cache_.hasText();
+ case LyXTextType:
+ return cache_.hasFormat(lyxMimeType());
+ case PlainTextType:
+ return cache_.hasText();
+ case HtmlTextType:
+ return cache_.hasHtml();
+ case LaTeXTextType:
+ return cache_.hasFormat(latexMimeType()) ||
+ cache_.hasFormat(texMimeType());
+ }
+ // shut up compiler
+ return false;
}
|| 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
if (type == LinkBackGraphicsType)
-#ifdef Q_WS_MACX
+#ifdef Q_OS_MAC
return isLinkBackDataInPasteboard();
#else
return false;
-#endif // Q_WS_MACX
-
+#endif // Q_OS_MAC
+
// get mime data
- QStringList const & formats = source->formats();
- LYXERR(Debug::ACTION, "We found " << formats.size() << " formats");
+ QStringList const & formats = cache_.formats();
+ LYXERR(Debug::CLIPBOARD, "We found " << formats.size() << " formats");
for (int i = 0; i < formats.size(); ++i)
- LYXERR(Debug::ACTION, "Found format " << formats[i]);
+ LYXERR(Debug::CLIPBOARD, "Found format " << formats[i]);
// compute mime for type
QString mime;
case EmfGraphicsType: mime = emfMimeType(); break;
case WmfGraphicsType: mime = wmfMimeType(); break;
case PdfGraphicsType: mime = pdfMimeType(); break;
- default: LASSERT(false, /**/);
+ default: LASSERT(false, return false);
}
-
- return source && source->hasFormat(mime);
+
+ return cache_.hasFormat(mime);
}
bool GuiClipboard::isInternal() const
{
+ if (!hasTextContents(LyXTextType))
+ return false;
+
// ownsClipboard() is also true for stuff coming from dialogs, e.g.
- // the preamble dialog
- // FIXME: This does only work on X11, since ownsClipboard() is
- // hardwired to return false on Windows and OS X.
- return qApp->clipboard()->ownsClipboard() && hasLyXContents();
+ // the preamble dialog. This does only work on X11 and Windows, since
+ // ownsClipboard() is hardwired to return false on OS X.
+ if (hasInternal())
+ return qApp->clipboard()->ownsClipboard();
+
+ // We are running on OS X: Check whether clipboard data is from
+ // ourself by comparing its checksum with the stored one.
+ QByteArray const ar = cache_.data(lyxMimeType());
+ string const data(ar.data(), ar.count());
+ boost::crc_32_type crc32;
+ crc32.process_bytes(data.c_str(), data.size());
+ return checksum == crc32.checksum();
}
bool GuiClipboard::hasInternal() const
{
// Windows and Mac OS X does not have the concept of ownership;
- // the clipboard is a fully global resource so all applications
- // are notified of changes.
-#if (defined(Q_WS_X11))
+ // the clipboard is a fully global resource so all applications
+ // are notified of changes. However, on Windows ownership is
+ // emulated by Qt through the OleIsCurrentClipboard() API, while
+ // on Mac OS X we deal with this issue by ourself.
+#ifndef Q_OS_MAC
return true;
#else
return false;
void GuiClipboard::on_dataChanged()
{
- QMimeData const * const source =
- qApp->clipboard()->mimeData(QClipboard::Clipboard);
- QStringList l = source->formats();
- LYXERR(Debug::ACTION, "Qt Clipboard changed. We found the following mime types:");
+ update();
+#if defined(Q_OS_WIN) || defined(Q_CYGWIN_WIN)
+ // Retry on Windows (#10109)
+ if (cache_.formats().count() == 0) {
+ QTimer::singleShot(100, this, SLOT(update()));
+ }
+#endif
+}
+
+void GuiClipboard::update()
+{
+ //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::CLIPBOARD, "Qt Clipboard changed. We found the following mime types:");
for (int i = 0; i < l.count(); i++)
- LYXERR(Debug::ACTION, l.value(i));
-
- text_clipboard_empty_ = qApp->clipboard()->
+ LYXERR(Debug::CLIPBOARD, l.value(i));
+
+ plaintext_clipboard_empty_ = qApp->clipboard()->
text(QClipboard::Clipboard).isEmpty();
- has_lyx_contents_ = hasLyXContents();
+ has_text_contents_ = hasTextContents();
has_graphics_contents_ = hasGraphicsContents();
}
// clipboard. The plaintext version is empty if the LyX version
// contains only one inset, and the LyX version is empty if the
// clipboard does not come from LyX.
- if (!text_clipboard_empty_)
+ if (!plaintext_clipboard_empty_)
return false;
- return !has_lyx_contents_ && !has_graphics_contents_;
+ return !has_text_contents_ && !has_graphics_contents_;
}
} // namespace frontend
projects / lyx.git / blobdiff