commit 531a37baee776e4a984820809d5ef4bcbe6f5047
Author: Thibaut Cuvelier <tcuvel...@lyx.org>
Date:   Sun Oct 8 22:09:59 2023 +0200

    XHTML: implement InsetInfo.
---
 src/insets/InsetInfo.cpp |  342 ++++++++++++++++++++++++++++++++++++++++++++--
 src/insets/InsetInfo.h   |    2 +
 2 files changed, 330 insertions(+), 14 deletions(-)

diff --git a/src/insets/InsetInfo.cpp b/src/insets/InsetInfo.cpp
index b08eb7b..4b92774 100644
--- a/src/insets/InsetInfo.cpp
+++ b/src/insets/InsetInfo.cpp
@@ -1295,48 +1295,54 @@ namespace {
 
 // TODO: away from a release, use these functions in InsetInfo::build and 
InsetInfoParams::getArguments.
 
-QDate parseDate(Buffer const & buffer, const InsetInfoParams & params) {
+std::pair<QDate, std::string> parseDate(Buffer const & buffer, const 
InsetInfoParams & params) {
        std::string date_format = params.name;
        std::string const date_specifier = (params.type == 
InsetInfoParams::FIXDATE_INFO
                                            && contains(params.name, '@'))
                                           ? split(params.name, date_format, 
'@') : string();
 
+       QDate date;
        if (params.type == InsetInfoParams::MODDATE_INFO)
 #if (QT_VERSION >= QT_VERSION_CHECK(5, 8, 0))
-               return 
QDateTime::fromSecsSinceEpoch(buffer.fileName().lastModified()).date();
+               date = 
QDateTime::fromSecsSinceEpoch(buffer.fileName().lastModified()).date();
 #else
-               return 
QDateTime::fromTime_t(buffer.fileName().lastModified()).date();
+               date = 
QDateTime::fromTime_t(buffer.fileName().lastModified()).date();
 #endif
        else if (params.type == InsetInfoParams::FIXDATE_INFO && 
!date_specifier.empty()) {
                QDate date = QDate::fromString(toqstr(date_specifier), 
Qt::ISODate);
-               return (date.isValid()) ? date : QDate::currentDate();
+               date = (date.isValid()) ? date : QDate::currentDate();
        } else {
                if (params.type != InsetInfoParams::DATE_INFO && params.type != 
InsetInfoParams::FIXDATE_INFO)
                        lyxerr << "Unexpected InsetInfoParams::info_type in 
parseDate: " << params.type;
-               return QDate::currentDate();
+               date = QDate::currentDate();
        }
+
+       return {date, date_format};
 }
 
-QTime parseTime(Buffer const & buffer, const InsetInfoParams & params) {
+std::pair<QTime, std::string> parseTime(Buffer const & buffer, const 
InsetInfoParams & params) {
        std::string time_format = params.name;
        std::string const date_specifier = (params.type == 
InsetInfoParams::FIXTIME_INFO
                                            && contains(params.name, '@'))
                                           ? split(params.name, time_format, 
'@') : string();
 
+       QTime time;
        if (params.type == InsetInfoParams::MODTIME_INFO)
 #if (QT_VERSION >= QT_VERSION_CHECK(5, 8, 0))
-               return 
QDateTime::fromSecsSinceEpoch(buffer.fileName().lastModified()).time();
+               time = 
QDateTime::fromSecsSinceEpoch(buffer.fileName().lastModified()).time();
 #else
-               return 
QDateTime::fromTime_t(buffer.fileName().lastModified()).time();
+               time = 
QDateTime::fromTime_t(buffer.fileName().lastModified()).time();
 #endif
        else if (params.type == InsetInfoParams::FIXTIME_INFO && 
!date_specifier.empty()) {
-               QTime time = QTime::fromString(toqstr(date_specifier), 
Qt::ISODate);
-               return (time.isValid()) ? time : QTime::currentTime();
+               time = QTime::fromString(toqstr(date_specifier), Qt::ISODate);
+               time = (time.isValid()) ? time : QTime::currentTime();
        } else {
                if (params.type != InsetInfoParams::TIME_INFO && params.type != 
InsetInfoParams::FIXTIME_INFO)
                        lyxerr << "Unexpected InsetInfoParams::info_type in 
parseTime: " << params.type;
-               return QTime::currentTime();
+               time = QTime::currentTime();
        }
+
+       return {time, time_format};
 }
 
 docstring getBufferInfo(Buffer const & buffer, const InsetInfoParams & params) 
{
@@ -1444,7 +1450,7 @@ void docbookShortcutInfo(XMLStream & xs, const 
InsetInfoParams & params) {
 
        std::string attr;
        if (params.type == InsetInfoParams::SHORTCUTS_INFO)
-               attr = R"(role="shorcuts")";
+               attr = R"(role="shortcuts")";
        else if (params.type == InsetInfoParams::SHORTCUT_INFO)
                attr = R"(role="shortcut")";
        else {
@@ -1519,6 +1525,78 @@ void docbookShortcutInfo(XMLStream & xs, const 
InsetInfoParams & params) {
        xml::closeTag(xs, "shortcut", "inline");
 }
 
+void xhtmlShortcutInfo(XMLStream & xs, const InsetInfoParams & params) {
+       std::string attr;
+       if (params.type == InsetInfoParams::SHORTCUTS_INFO)
+               attr = R"(class="shortcuts")";
+       else if (params.type == InsetInfoParams::SHORTCUT_INFO)
+               attr = R"(class="shortcut")";
+       else {
+               // Only check for this assertion that exits this function.
+               lyxerr << "Assertion failed! InsetInfoParams::info_type: " << 
params.type;
+               return;
+       }
+
+       // shortcuts can change, so we need to re-do this each time
+       FuncRequest const func = lyxaction.lookupFunc(params.name);
+       if (func.action() == LFUN_UNKNOWN_ACTION) {
+               xml::openTag(xs, "span", attr, "inline");
+               xs << _("Unknown action %1$s");
+               xml::closeTag(xs, "span", "inline");
+               return;
+       }
+
+       KeyMap::Bindings bindings = theTopLevelKeymap().findBindings(func);
+       if (bindings.empty()) {
+               xml::openTag(xs, "span", attr, "inline");
+               xs << _("undefined");
+               xml::closeTag(xs, "span", "inline");
+               return;
+       }
+
+       docstring sequence;
+       docstring seq_untranslated;
+       if (params.type == InsetInfoParams::SHORTCUT_INFO) {
+               sequence = bindings.begin()->print(KeySequence::ForGui);
+               seq_untranslated = bindings.begin()->print(KeySequence::ForGui, 
true);
+       } else if (params.type == InsetInfoParams::SHORTCUTS_INFO) {
+               sequence = theTopLevelKeymap().printBindings(func, 
KeySequence::ForGui);
+               seq_untranslated = theTopLevelKeymap().printBindings(func, 
KeySequence::ForGui, true);
+       }
+       // No other possible case.
+
+       Language const * tryguilang = 
languages.getFromCode(Messages::guiLanguage());
+       // Some info insets use the language of the GUI (if available)
+       Language const * guilang = tryguilang ? tryguilang : params.lang;
+       const bool isTranslated = canTranslateKeySequence(params, sequence, 
seq_untranslated);
+       const bool isLtr = !isTranslated || (!guilang->rightToLeft() && 
!params.lang->rightToLeft());
+       attr += std::string(" dir=\"") + (isLtr ? "ltr" : "rtl") + "\"";
+       // Use bdo instead of span to specify the text direction (dir is only 
allowed globally or on bdo).
+       xml::openTag(xs, "bdo", attr, "inline");
+
+       // QKeySequence returns special characters for keys on the mac
+       // Since these are not included in many fonts, we
+       // re-translate them to textual names (see #10641)
+       odocstringstream ods;
+       string const lcode = params.lang->code();
+       docstring trans;
+       for (int i = 0; i < sequence.length(); ++i) {
+           char_type const c = sequence[i];
+               const auto keyMapping = keyToString.find(c);
+               if (keyMapping != keyToString.end()) {
+                       translateString(from_ascii(keyMapping->second), trans, 
lcode);
+                       xs << trans;
+               } else {
+                       xs << c;
+               }
+
+               if (i > 0 && i + 1 < sequence.length())
+                       xs << from_ascii("+");
+       }
+
+       xml::closeTag(xs, "bdo", "inline");
+}
+
 docstring getLyxRCInfo(const InsetInfoParams & params) {
        if (params.name.empty())
                return _("undefined");
@@ -1625,6 +1703,67 @@ void docbookMenuInfo(XMLStream & xs, Buffer const & 
buffer, const InsetInfoParam
        xml::closeTag(xs, "menuchoice", "inline");
 }
 
+
+void xhtmlMenuInfo(XMLStream & xs, Buffer const & buffer, const 
InsetInfoParams & params) {
+       docstring_list names;
+       FuncRequest func = lyxaction.lookupFunc(params.name);
+       if (func.action() == LFUN_UNKNOWN_ACTION) {
+               xml::openTag(xs, "span", "", "inline");
+               xs << _("Unknown action %1$s");
+               xml::closeTag(xs, "span", "inline");
+               return;
+       }
+
+       if (func.action() == LFUN_BUFFER_VIEW || func.action() == 
LFUN_BUFFER_UPDATE) {
+               // The default output format is in the menu without argument,
+               // so strip it here.
+               if (func.argument() == 
from_ascii(buffer.params().getDefaultOutputFormat()))
+                       func = FuncRequest(func.action());
+       }
+
+       // iterate through the menubackend to find it
+       if (!theApp()) {
+               xml::openTag(xs, "span", "", "inline");
+               xs << _("Can't determine menu entry for action %1$s in batch 
mode");
+               xml::closeTag(xs, "span", "inline");
+               return;
+       }
+
+       // and we will not keep trying if we fail
+       if (!theApp()->searchMenu(func, names)) {
+               xml::openTag(xs, "span", "", "inline");
+               xs << _("No menu entry for action %1$s");
+               xml::closeTag(xs, "span", "inline");
+               return;
+       }
+
+       // if found, return its path.
+       Language const * tryguilang = 
languages.getFromCode(Messages::guiLanguage());
+       // Some info insets use the language of the GUI (if available)
+       Language const * guilang = tryguilang ? tryguilang : params.lang;
+       const bool isLtr = !guilang->rightToLeft();
+       const std::string attr = std::string("dir=\"") + (isLtr ? "ltr" : 
"rtl") + "\"";
+       // Use bdo instead of span to specify the text direction (dir is only 
allowed globally or on bdo).
+       xml::openTag(xs, "bdo", attr, "inline");
+
+       for (int i = 0; i < names.size(); ++i) {
+           docstring const & name = names[i];
+
+               //FIXME: add proper underlines here. This
+               // involves rewriting searchMenu used above to
+               // return a vector of menus. If we do not do
+               // that, we might as well use below
+               // Paragraph::insert on each string (JMarc)
+               // TODO: for DocBook, underlining corresponds to adding 
db:accel around the letter to underline.
+               xs << name;
+
+               if (i > 0 && i + 1 < names.size())
+                       xs << "&#x21D2;"; // InsetSpecialChar::MENU_SEPARATOR
+       }
+
+       xml::closeTag(xs, "bdo", "inline");
+}
+
 void docbookIconInfo(XMLStream & xs, const OutputParams & rp, Buffer * buffer, 
const InsetInfoParams & params) {
        FuncRequest func = lyxaction.lookupFunc(params.name);
        docstring icon_name = frontend::Application::iconName(func, true);
@@ -1669,6 +1808,50 @@ void docbookIconInfo(XMLStream & xs, const OutputParams 
& rp, Buffer * buffer, c
        xml::closeTag(xs, "guiicon", "inline");
 }
 
+void xhtmlIconInfo(XMLStream & xs, const OutputParams & rp, Buffer * buffer, 
const InsetInfoParams & params) {
+       FuncRequest func = lyxaction.lookupFunc(params.name);
+       docstring icon_name = frontend::Application::iconName(func, true);
+       FileName file(to_utf8(icon_name));
+       if (file.onlyFileNameWithoutExt() == "unknown") {
+               std::string dir = "images";
+               FileName file2(imageLibFileSearch(dir, params.name, 
"svgz,png"));
+               if (!file2.empty())
+                       file = file2;
+       }
+
+       if (!file.exists())
+               return;
+
+       int percent_scale = 100;
+       if (use_gui) {
+               // Compute the scale factor for the icon such that its
+               // width on screen is equal to 1em in pixels.
+               // The scale factor is rounded to the integer nearest
+               // to the float value of the ratio 100*iconsize/imgsize.
+               int imgsize = QImage(toqstr(file.absFileName())).width();
+               if (imgsize > 0) {
+                       int iconsize = Length(1, Length::EM).inPixels(1);
+                       percent_scale = (100 * iconsize + imgsize / 2) / 
imgsize;
+               }
+       }
+
+       InsetGraphicsTight * inset = new InsetGraphicsTight(buffer);
+       InsetGraphicsParams igp;
+       igp.filename = file;
+       igp.lyxscale = percent_scale;
+       igp.scale = string();
+       igp.width = Length(1, Length::EM);
+       if (contains(file.absoluteFilePath(), from_ascii("math"))
+           || contains(file.absoluteFilePath(), from_ascii("ert-insert"))
+           || suffixIs(file.onlyPath().absoluteFilePath(), from_ascii("ipa")))
+               igp.darkModeSensitive = true;
+       inset->setParams(igp);
+
+       xml::openTag(xs, "span", "class=\"guiicon\"", "inline");
+       inset->xhtml(xs, rp);
+       xml::closeTag(xs, "span", "inline");
+}
+
 docstring getLyXInfo(const InsetInfoParams & params) {
        if (params.name == "version")
                return from_ascii(lyx_version);
@@ -1703,6 +1886,7 @@ docstring getNormalizedL7N(const InsetInfoParams & 
params) {
 
 } // namespace
 
+
 void InsetInfo::docbook(XMLStream & xs, OutputParams const & rp) const
 {
        // TODO: away from a release, merge some of this code with 
InsetInfo::build and InsetInfoParams::getArguments.
@@ -1737,7 +1921,7 @@ void InsetInfo::docbook(XMLStream & xs, OutputParams 
const & rp) const
                        xml::openTag(xs, "date", "role=\"" + role + "\"", 
"inline");
                else
                        xs << XMLStream::ESCAPE_NONE << 
from_ascii(std::string("<!-- ") + role + " -->");
-               xs << qstring_to_ucs4(parseDate(buffer(), 
params_).toString(Qt::ISODate));
+               xs << qstring_to_ucs4(std::get<0>(parseDate(buffer(), 
params_)).toString(Qt::ISODate));
                if (!isWithinDate)
                        xml::closeTag(xs, "date", "inline");
                break;
@@ -1771,7 +1955,7 @@ void InsetInfo::docbook(XMLStream & xs, OutputParams 
const & rp) const
                        xml::openTag(xs, "date", "role=\"" + role + "\"", 
"inline");
                else
                        xs << XMLStream::ESCAPE_NONE << 
from_ascii(std::string("<!-- ") + role + " -->");
-               xs << qstring_to_ucs4(parseTime(buffer(), 
params_).toString(Qt::ISODate));
+               xs << qstring_to_ucs4(std::get<0>(parseTime(buffer(), 
params_)).toString(Qt::ISODate));
                if (!isWithinDate)
                        xml::closeTag(xs, "date", "inline");
                break;
@@ -1845,4 +2029,134 @@ void InsetInfo::docbook(XMLStream & xs, OutputParams 
const & rp) const
 }
 
 
+docstring InsetInfo::xhtml(XMLStream & xs, OutputParams const & rp) const
+{
+       // TODO: away from a release, merge some of this code with 
InsetInfo::build and InsetInfoParams::getArguments.
+       switch (params_.type) {
+       case InsetInfoParams::DATE_INFO:
+       case InsetInfoParams::MODDATE_INFO:
+       case InsetInfoParams::FIXDATE_INFO: {
+               std::string cssClass;
+               switch (params_.type) {
+               case InsetInfoParams::DATE_INFO:
+                       cssClass = "current-date";
+                       break;
+               case InsetInfoParams::MODDATE_INFO:
+                       cssClass = "last-modification-date";
+                       break;
+               case InsetInfoParams::FIXDATE_INFO:
+                       cssClass = "fix-date";
+                       break;
+               default:
+                       lyxerr << "Assertion failed! 
InsetInfoParams::info_type: " << params().type;
+                       break;
+               }
+
+               QDate date;
+               std::string date_format;
+               std::tie(date, date_format) = parseDate(buffer(), params_);
+
+               xml::openTag(xs, "span", std::string("class=\"infodate-") + 
cssClass + "\"", "inline");
+               xs << params_.getDate(date_format, date);
+               xml::closeTag(xs, "span", "inline");
+               break;
+       }
+
+       case InsetInfoParams::TIME_INFO:
+       case InsetInfoParams::MODTIME_INFO:
+       case InsetInfoParams::FIXTIME_INFO: {
+               std::string cssClass;
+               switch (params_.type) {
+               case InsetInfoParams::TIME_INFO:
+                       cssClass = "current-time";
+                       break;
+               case InsetInfoParams::MODTIME_INFO:
+                       cssClass = "last-modification-time";
+                       break;
+               case InsetInfoParams::FIXTIME_INFO:
+                       cssClass = "fix-time";
+                       break;
+               default:
+                       lyxerr << "Assertion failed! 
InsetInfoParams::info_type: " << params().type;
+                       break;
+               }
+
+               QTime time;
+               std::string time_format;
+               std::tie(time, time_format) = parseTime(buffer(), params_);
+
+               xml::openTag(xs, "span", std::string("class=\"infotime-") + 
cssClass + "\"", "inline");
+               xs << params_.getTime(time_format, time);
+               xml::closeTag(xs, "span", "inline");
+               break;
+       }
+
+       case InsetInfoParams::BUFFER_INFO:
+               xml::openTag(xs, "span", "class=\"buffer-info " + params_.name 
+ "\"", "inline");
+               xs << getBufferInfo(buffer(), params_);
+               xml::closeTag(xs, "span", "inline");
+               break;
+       case InsetInfoParams::VCS_INFO:
+               xml::openTag(xs, "span", "class=\"vcs-info " + params_.name + 
"\"", "inline");
+               xs << getVCSInfo(buffer(), params_);
+               xml::closeTag(xs, "span", "inline");
+               break;
+       case InsetInfoParams::PACKAGE_INFO:
+               xml::openTag(xs, "span", "class=\"package-availability " + 
params_.name + "\"", "inline");
+               xs << getPackageInfo(params_);
+               xml::closeTag(xs, "span", "inline");
+               break;
+       case InsetInfoParams::TEXTCLASS_INFO:
+               xml::openTag(xs, "span", "class=\"textclass-availability " + 
params_.name + "\"", "inline");
+               xs << getTextClassInfo(params_);
+               xml::closeTag(xs, "span", "inline");
+               break;
+
+       case InsetInfoParams::SHORTCUTS_INFO:
+       case InsetInfoParams::SHORTCUT_INFO:
+               xhtmlShortcutInfo(xs, params_);
+               break;
+
+       case InsetInfoParams::LYXRC_INFO:
+               xml::openTag(xs, "span", "class=\"lyxrc-entry " + params_.name 
+ "\"", "inline");
+               xs << getLyxRCInfo(params_);
+               xml::closeTag(xs, "span", "inline");
+               break;
+
+       case InsetInfoParams::MENU_INFO:
+               xhtmlMenuInfo(xs, buffer(), params_);
+               break;
+       case InsetInfoParams::ICON_INFO:
+               xhtmlIconInfo(xs, rp, buffer_, params_);
+               break;
+       case InsetInfoParams::LYX_INFO:
+               xml::openTag(xs, "span", "class=\"lyx-info " + params_.name + 
"\"", "inline");
+               xs << getLyXInfo(params_);
+               xml::closeTag(xs, "span", "inline");
+               break;
+
+       case InsetInfoParams::L7N_INFO:
+               xml::openTag(xs, "span", R"(class="localized" translate="no")", 
"inline");
+               xs << getNormalizedL7N(params_);
+               xml::closeTag(xs, "span", "inline");
+               break;
+
+       case InsetInfoParams::UNKNOWN_INFO:
+               xml::openTag(xs, "span", R"(class="unknown")", "inline");
+               xs << from_ascii("Unknown Info!");
+               xml::closeTag(xs, "span", "inline");
+               break;
+       default:
+               lyxerr << "Unrecognised InsetInfoParams::info_type: " << 
params().type;
+
+               xml::openTag(xs, "span", R"(class="unrecognized")", "inline");
+               xs << from_ascii("Unrecognized Info!");
+               xml::closeTag(xs, "span", "inline");
+               break;
+       }
+
+       return from_ascii("");
+}
+
+
 } // namespace lyx
diff --git a/src/insets/InsetInfo.h b/src/insets/InsetInfo.h
index 9501837..a2ad046 100644
--- a/src/insets/InsetInfo.h
+++ b/src/insets/InsetInfo.h
@@ -222,6 +222,8 @@ public:
        InsetInfoParams params() const { return params_; }
        /// Outputs the inset as DocBook, taking advantage of the metadata 
available in InsetInfoParams.
        void docbook(XMLStream &, OutputParams const &) const override;
+       /// Outputs the inset as XHTML, taking advantage of the metadata 
available in InsetInfoParams.
+       docstring xhtml(XMLStream &, OutputParams const &) const override;
 
 private:
        ///
-- 
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