]> git.lyx.org Git - lyx.git/blobdiff - src/Text3.cpp
Provide proper fallback if a bibliography processor is not found
[lyx.git] / src / Text3.cpp
index 3e6fdf0e14e62634173830b242372aa160a48a51..7ec8947d64e077fabeb36c2841002f83264564c0 100644 (file)
@@ -53,7 +53,7 @@
 #include "frontends/Selection.h"
 
 #include "insets/InsetArgument.h"
-#include "insets/InsetCollapsable.h"
+#include "insets/InsetCollapsible.h"
 #include "insets/InsetCommand.h"
 #include "insets/InsetExternal.h"
 #include "insets/InsetFloat.h"
@@ -78,7 +78,7 @@
 #include "support/regex.h"
 
 #include "mathed/InsetMathHull.h"
-#include "mathed/MathMacroTemplate.h"
+#include "mathed/InsetMathMacroTemplate.h"
 
 #include <clocale>
 #include <sstream>
@@ -89,6 +89,7 @@ using namespace lyx::support;
 namespace lyx {
 
 using cap::copySelection;
+using cap::copySelectionToTemp;
 using cap::cutSelection;
 using cap::cutSelectionToTemp;
 using cap::pasteFromStack;
@@ -245,24 +246,11 @@ static bool doInsertInset(Cursor & cur, Text * text,
        if (!inset)
                return false;
 
-       if (InsetCollapsable * ci = inset->asInsetCollapsable())
+       if (InsetCollapsible * ci = inset->asInsetCollapsible())
                ci->setButtonLabel();
 
        cur.recordUndo();
-       if (cmd.action() == LFUN_INDEX_INSERT) {
-               docstring ds = subst(text->getStringToIndex(cur), '\n', ' ');
-               text->insertInset(cur, inset);
-               if (edit)
-                       inset->edit(cur, true);
-               // Now put this into inset
-               Font const f(inherit_font, cur.current_font.language());
-               if (!ds.empty()) {
-                       cur.text()->insertStringAsLines(cur, ds, f);
-                       cur.leaveInset(*inset);
-               }
-               return true;
-       }
-       else if (cmd.action() == LFUN_ARGUMENT_INSERT) {
+       if (cmd.action() == LFUN_ARGUMENT_INSERT) {
                bool cotextinsert = false;
                InsetArgument const * const ia = static_cast<InsetArgument const *>(inset);
                Layout const & lay = cur.paragraph().layout();
@@ -301,9 +289,16 @@ static bool doInsertInset(Cursor & cur, Text * text,
 
        bool gotsel = false;
        if (cur.selection()) {
-               cutSelectionToTemp(cur, false, pastesel);
+               if (cmd.action() == LFUN_INDEX_INSERT)
+                               copySelectionToTemp(cur);
+                       else
+                               cutSelectionToTemp(cur, pastesel);
+                       cur.clearSelection();
+                       gotsel = true;
+       } else if (cmd.action() == LFUN_INDEX_INSERT) {
+               gotsel = text->selectWordWhenUnderCursor(cur, WHOLE_WORD);
+               copySelectionToTemp(cur);
                cur.clearSelection();
-               gotsel = true;
        }
        text->insertInset(cur, inset);
 
@@ -366,7 +361,23 @@ enum OutlineOp {
 };
 
 
-static void outline(OutlineOp mode, Cursor & cur)
+static void insertSeparator(Cursor & cur, depth_type const depth)
+{
+       Buffer & buf = *cur.buffer();
+       lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK));
+       DocumentClass const & tc = buf.params().documentClass();
+       lyx::dispatch(FuncRequest(LFUN_LAYOUT, from_ascii("\"") + tc.plainLayout().name()
+                                 + from_ascii("\" ignoreautonests")));
+       // FIXME: Bibitem mess!
+       if (cur.prevInset() && cur.prevInset()->lyxCode() == BIBITEM_CODE)
+               lyx::dispatch(FuncRequest(LFUN_CHAR_DELETE_BACKWARD));
+       lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
+       while (cur.paragraph().params().depth() > depth)
+               lyx::dispatch(FuncRequest(LFUN_DEPTH_DECREMENT));
+}
+
+
+static void outline(OutlineOp mode, Cursor & cur, Text * text)
 {
        Buffer & buf = *cur.buffer();
        pit_type & pit = cur.pit();
@@ -377,6 +388,7 @@ static void outline(OutlineOp mode, Cursor & cur)
        // The final paragraph of area to be copied:
        ParagraphList::iterator finish = start;
        ParagraphList::iterator const end = pars.end();
+       depth_type const current_depth = cur.paragraph().params().depth();
 
        int const thistoclevel = buf.text().getTocLevel(distance(bgn, start));
        int toclevel;
@@ -411,10 +423,47 @@ static void outline(OutlineOp mode, Cursor & cur)
                        // Not found; do nothing
                        if (toclevel == Layout::NOT_IN_TOC || toclevel > thistoclevel)
                                return;
-                       pit_type const newpit = distance(bgn, dest);
+                       pit_type newpit = distance(bgn, dest);
                        pit_type const len = distance(start, finish);
                        pit_type const deletepit = pit + len;
                        buf.undo().recordUndo(cur, newpit, deletepit - 1);
+                       // If we move an environment upwards, make sure it is
+                       // separated from its new neighbour below:
+                       // If an environment of the same layout follows, and the moved
+                       // paragraph sequence does not end with a separator, insert one.
+                       ParagraphList::iterator lastmoved = finish;
+                       --lastmoved;
+                       if (start->layout().isEnvironment()
+                           && dest->layout() == start->layout()
+                           && !lastmoved->isEnvSeparator(lastmoved->beginOfBody())) {
+                               cur.pit() = distance(bgn, lastmoved);
+                               cur.pos() = cur.lastpos();
+                               insertSeparator(cur, current_depth);
+                               cur.pit() = pit;
+                       }
+                       // Likewise, if we moved an environment upwards, make sure it
+                       // is separated from its new neighbour above.
+                       // The paragraph before the target of movement
+                       if (dest != bgn) {
+                               ParagraphList::iterator before = dest;
+                               --before;
+                               // Get the parent paragraph (outer in nested context)
+                               pit_type const parent =
+                                       before->params().depth() > current_depth
+                                               ? text->depthHook(distance(bgn, before), current_depth)
+                                               : distance(bgn, before);
+                               // If a environment with same layout preceeds the moved one in the new
+                               // position, and there is no separator yet, insert one.
+                               if (start->layout().isEnvironment()
+                                   && pars[parent].layout() == start->layout()
+                                   && !before->isEnvSeparator(before->beginOfBody())) {
+                                       cur.pit() = distance(bgn, before);
+                                       cur.pos() = cur.lastpos();
+                                       insertSeparator(cur, current_depth);
+                                       cur.pit() = pit;
+                               }
+                       }
+                       newpit = distance(bgn, dest);
                        pars.splice(dest, start, finish);
                        cur.pit() = newpit;
                        break;
@@ -432,9 +481,45 @@ static void outline(OutlineOp mode, Cursor & cur)
                                      && toclevel <= thistoclevel)
                                        break;
                        }
-                       // One such was found:
+                       // One such was found, so go on...
+                       // If we move an environment downwards, make sure it is
+                       // separated from its new neighbour above.
                        pit_type newpit = distance(bgn, dest);
                        buf.undo().recordUndo(cur, pit, newpit - 1);
+                       // The paragraph before the target of movement
+                       ParagraphList::iterator before = dest;
+                       --before;
+                       // Get the parent paragraph (outer in nested context)
+                       pit_type const parent =
+                               before->params().depth() > current_depth
+                                       ? text->depthHook(distance(bgn, before), current_depth)
+                                       : distance(bgn, before);
+                       // If a environment with same layout preceeds the moved one in the new
+                       // position, and there is no separator yet, insert one.
+                       if (start->layout().isEnvironment()
+                           && pars[parent].layout() == start->layout()
+                           && !before->isEnvSeparator(before->beginOfBody())) {
+                               cur.pit() = distance(bgn, before);
+                               cur.pos() = cur.lastpos();
+                               insertSeparator(cur, current_depth);
+                               cur.pit() = pit;
+                       }
+                       // Likewise, make sure moved environments are separated
+                       // from their new neighbour below:
+                       // If an environment of the same layout follows, and the moved
+                       // paragraph sequence does not end with a separator, insert one.
+                       ParagraphList::iterator lastmoved = finish;
+                       --lastmoved;
+                       if (dest != end
+                           && start->layout().isEnvironment()
+                           && dest->layout() == start->layout()
+                           && !lastmoved->isEnvSeparator(lastmoved->beginOfBody())) {
+                               cur.pit() = distance(bgn, lastmoved);
+                               cur.pos() = cur.lastpos();
+                               insertSeparator(cur, current_depth);
+                               cur.pit() = pit;
+                       }
+                       newpit = distance(bgn, dest);
                        pit_type const len = distance(start, finish);
                        pars.splice(dest, start, finish);
                        cur.pit() = newpit - len;
@@ -452,7 +537,7 @@ static void outline(OutlineOp mode, Cursor & cur)
                                DocumentClass const & tc = buf.params().documentClass();
                                DocumentClass::const_iterator lit = tc.begin();
                                DocumentClass::const_iterator len = tc.end();
-                               int const newtoclevel = 
+                               int const newtoclevel =
                                        (mode == OutlineIn ? toclevel + 1 : toclevel - 1);
                                LabelType const oldlabeltype = start->layout().labeltype;
 
@@ -484,14 +569,14 @@ bool Text::isRTL(Paragraph const & par) const
        return par.isRTL(buffer.params());
 }
 
-       
+
 namespace {
-               
+
        Language const * getLanguage(Cursor const & cur, string const & lang) {
                return lang.empty() ? cur.getFont().language() : languages.getLanguage(lang);
        }
 
-}
+} // namespace
 
 
 void Text::dispatch(Cursor & cur, FuncRequest & cmd)
@@ -518,7 +603,7 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
        cur.noScreenUpdate();
 
        LBUFERR(this == cur.text());
-       
+
        // NOTE: This should NOT be a reference. See commit 94a5481a.
        CursorSlice const oldTopSlice = cur.top();
        bool const oldBoundary = cur.boundary();
@@ -584,23 +669,23 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 
        case LFUN_WORD_DELETE_FORWARD:
                if (cur.selection())
-                       cutSelection(cur, true, false);
+                       cutSelection(cur, false);
                else
-                       deleteWordForward(cur);
+                       deleteWordForward(cur, cmd.getArg(0) == "force");
                finishChange(cur, false);
                break;
 
        case LFUN_WORD_DELETE_BACKWARD:
                if (cur.selection())
-                       cutSelection(cur, true, false);
+                       cutSelection(cur, false);
                else
-                       deleteWordBackward(cur);
+                       deleteWordBackward(cur, cmd.getArg(0) == "force");
                finishChange(cur, false);
                break;
 
        case LFUN_LINE_DELETE_FORWARD:
                if (cur.selection())
-                       cutSelection(cur, true, false);
+                       cutSelection(cur, false);
                else
                        tm->deleteLineForward(cur);
                finishChange(cur, false);
@@ -770,6 +855,18 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
                        cur.upDownInText(up, needsUpdate);
                        needsUpdate |= cur.beforeDispatchCursor().inMathed();
                } else {
+                       pos_type newpos = up ? 0 : cur.lastpos();
+                       if (lyxrc.mac_like_cursor_movement && cur.pos() != newpos) {
+                               needsUpdate |= cur.selHandle(select);
+                               // we do not reset the targetx of the cursor
+                               cur.pos() = newpos;
+                               needsUpdate |= bv->checkDepm(cur, bv->cursor());
+                               cur.updateTextTargetOffset();
+                               if (needsUpdate)
+                                       cur.forceBufferUpdate();
+                               break;
+                       }
+
                        // if the cursor cannot be moved up or down do not remove
                        // the selection right now, but wait for the next dispatch.
                        if (select)
@@ -835,6 +932,8 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
                                break;
                }
                cur.pos() = cur.lastpos();
+               cur.boundary(false);
+               cur.setCurrentFont();
 
                needsUpdate |= cur != old_cur;
                break;
@@ -1054,10 +1153,17 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
                        if (cur.pos() == cur.paragraph().size())
                                // Par boundary, force full-screen update
                                singleParUpdate = false;
+                       else if (cmd.getArg(0) != "force" && cur.confirmDeletion()) {
+                               cur.resetAnchor();
+                               cur.selection(true);
+                               cur.posForward();
+                               cur.setSelection();
+                               break;
+                       }
                        needsUpdate |= erase(cur);
                        cur.resetAnchor();
                } else {
-                       cutSelection(cur, true, false);
+                       cutSelection(cur, false);
                        singleParUpdate = false;
                }
                moveCursor(cur, false);
@@ -1071,6 +1177,13 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
                                // Par boundary, full-screen update
                                if (par_boundary)
                                        singleParUpdate = false;
+                               else if (cmd.getArg(0) != "force" && cur.confirmDeletion(true)) {
+                                       cur.resetAnchor();
+                                       cur.selection(true);
+                                       cur.posBackward();
+                                       cur.setSelection();
+                                       break;
+                               }
                                needsUpdate |= backspace(cur);
                                cur.resetAnchor();
                                if (par_boundary && !first_par && cur.pos() > 0
@@ -1080,7 +1193,13 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
                                }
                        }
                } else {
-                       cutSelection(cur, true, false);
+                       DocIterator const dit = cur.selectionBegin();
+                       cutSelection(cur, false);
+                       if (cur.buffer()->params().track_changes)
+                               // since we're doing backwards deletion,
+                               // and the selection is not really cut,
+                               // move cursor before selection (#11630)
+                               cur.setCursor(dit);
                        singleParUpdate = false;
                }
                break;
@@ -1094,6 +1213,7 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
                pit_type prev = pit > 0 ? depthHook(pit, par.getDepth()) : pit;
                if (prev < pit && cur.pos() == par.beginOfBody()
                    && !par.size() && !par.isEnvSeparator(cur.pos())
+                   && !par.layout().keepempty
                    && !par.layout().isCommand()
                    && pars_[prev].layout() != par.layout()
                    && pars_[prev].layout().isEnvironment()
@@ -1113,9 +1233,9 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
                        Font const f(inherit_font, cur.current_font.language());
                        pars_[cur.pit() - 1].resetFonts(f);
                } else {
-                       if (par.isEnvSeparator(cur.pos()))
+                       if (par.isEnvSeparator(cur.pos()) && cmd.getArg(1) != "ignoresep")
                                cur.posForward();
-                       breakParagraph(cur, cmd.argument() == "inverse");
+                       breakParagraph(cur, cmd.getArg(0) == "inverse");
                }
                cur.resetAnchor();
                // If we have a list and autoinsert item insets,
@@ -1167,8 +1287,9 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
                        }
                        */
                        if (cur.selection())
-                               cutSelection(cur, true, false);
+                               cutSelection(cur, false);
                        cur.insert(inset);
+                       cur.forceBufferUpdate();
                        if (inset->editable() && inset->asInsetText())
                                inset->edit(cur, true);
                        else
@@ -1213,6 +1334,7 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
                }
 
                ins->setParams(inspar);
+               break;
        }
 
        case LFUN_SPACE_INSERT:
@@ -1229,6 +1351,8 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
                string const name = to_utf8(cmd.argument());
                if (name == "hyphenation")
                        specialChar(cur, InsetSpecialChar::HYPHENATION);
+               else if (name == "allowbreak")
+                       specialChar(cur, InsetSpecialChar::ALLOWBREAK);
                else if (name == "ligature-break")
                        specialChar(cur, InsetSpecialChar::LIGATURE_BREAK);
                else if (name == "slash")
@@ -1355,15 +1479,10 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
        }
 
        case LFUN_CUT:
-               cutSelection(cur, true, true);
+               cutSelection(cur, true);
                cur.message(_("Cut"));
                break;
 
-       case LFUN_COPY:
-               copySelection(cur);
-               cur.message(_("Copy"));
-               break;
-
        case LFUN_SERVER_GET_XY:
                cur.message(from_utf8(
                        convert<string>(tm->cursorX(cur.top(), cur.boundary()))
@@ -1388,7 +1507,8 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
                break;
 
        case LFUN_LAYOUT: {
-               docstring layout = cmd.argument();
+               bool const ignoreautonests = cmd.getArg(1) == "ignoreautonests";
+               docstring layout = ignoreautonests ? from_utf8(cmd.getArg(0)) : cmd.argument();
                LYXERR(Debug::INFO, "LFUN_LAYOUT: (arg) " << to_utf8(layout));
 
                Paragraph const & para = cur.paragraph();
@@ -1442,8 +1562,18 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
                        }
                }
 
-               if (change_layout)
+               if (change_layout) {
                        setLayout(cur, layout);
+                       if (cur.pit() > 0 && !ignoreautonests) {
+                               set<docstring> const & autonests =
+                                               pars_[cur.pit() - 1].layout().autonests();
+                               set<docstring> const & autonested =
+                                               pars_[cur.pit()].layout().isAutonestedBy();
+                               if (autonests.find(layout) != autonests.end()
+                                               || autonested.find(old_layout) != autonested.end())
+                                       lyx::dispatch(FuncRequest(LFUN_DEPTH_INCREMENT));
+                       }
+               }
 
                Layout::LaTeXArgMap args = tclass[layout].args();
                Layout::LaTeXArgMap::const_iterator lait = args.begin();
@@ -1461,36 +1591,80 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
 
        case LFUN_ENVIRONMENT_SPLIT: {
                bool const outer = cmd.argument() == "outer";
+               bool const previous = cmd.argument() == "previous";
+               bool const before = cmd.argument() == "before";
+               bool const normal = cmd.argument().empty();
                Paragraph const & para = cur.paragraph();
-               docstring layout = para.layout().name();
+               docstring layout;
+               if (para.layout().isEnvironment())
+                       layout = para.layout().name();
                depth_type split_depth = cur.paragraph().params().depth();
-               if (outer) {
-                       // check if we have an environment in our nesting hierarchy
+               depth_type nextpar_depth = 0;
+               if (outer || previous) {
+                       // check if we have an environment in our scope
                        pit_type pit = cur.pit();
                        Paragraph cpar = pars_[pit];
                        while (true) {
-                               if (pit == 0 || cpar.params().depth() == 0)
+                               if (pit == 0)
                                        break;
                                --pit;
                                cpar = pars_[pit];
+                               if (layout.empty() && previous
+                                   && cpar.layout().isEnvironment()
+                                   && cpar.params().depth() <= split_depth)
+                                       layout = cpar.layout().name();
                                if (cpar.params().depth() < split_depth
                                    && cpar.layout().isEnvironment()) {
-                                               layout = cpar.layout().name();
+                                               if (!previous)
+                                                       layout = cpar.layout().name();
                                                split_depth = cpar.params().depth();
                                }
+                               if (cpar.params().depth() == 0)
+                                       break;
                        }
                }
-               if (cur.pos() > 0)
+               if ((outer || normal) && cur.pit() < cur.lastpit()) {
+                       // save nesting of following paragraph
+                       Paragraph cpar = pars_[cur.pit() + 1];
+                       nextpar_depth = cpar.params().depth();
+               }
+               if (before)
+                       cur.top().setPitPos(cur.pit(), 0);
+               if (before || cur.pos() > 0)
                        lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK));
+               else if (previous && cur.nextInset() && cur.nextInset()->lyxCode() == SEPARATOR_CODE)
+                       lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse ignoresep"));
                if (outer) {
                        while (cur.paragraph().params().depth() > split_depth)
                                lyx::dispatch(FuncRequest(LFUN_DEPTH_DECREMENT));
                }
                DocumentClass const & tc = bv->buffer().params().documentClass();
-               lyx::dispatch(FuncRequest(LFUN_LAYOUT, tc.plainLayout().name()));
+               lyx::dispatch(FuncRequest(LFUN_LAYOUT, from_ascii("\"") + tc.plainLayout().name()
+                                         + from_ascii("\" ignoreautonests")));
                lyx::dispatch(FuncRequest(LFUN_SEPARATOR_INSERT, "plain"));
-               lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse"));
+               if (before) {
+                       cur.backwardPos();
+                       lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse ignoresep"));
+                       while (cur.paragraph().params().depth() < split_depth)
+                               lyx::dispatch(FuncRequest(LFUN_DEPTH_INCREMENT));
+               }
+               else
+                       lyx::dispatch(FuncRequest(LFUN_PARAGRAPH_BREAK, "inverse"));
                lyx::dispatch(FuncRequest(LFUN_LAYOUT, layout));
+               if ((outer || normal) && nextpar_depth > 0) {
+                       // restore nesting of following paragraph
+                       DocIterator scur = cur;
+                       depth_type const max_depth = cur.paragraph().params().depth() + 1;
+                       cur.forwardPar();
+                       while (cur.paragraph().params().depth() < min(nextpar_depth, max_depth)) {
+                               depth_type const olddepth = cur.paragraph().params().depth();
+                               lyx::dispatch(FuncRequest(LFUN_DEPTH_INCREMENT));
+                               if (olddepth == cur.paragraph().params().depth())
+                                       // leave loop if no incrementation happens
+                                       break;
+                       }
+                       cur.setCursor(scur);
+               }
 
                break;
        }
@@ -1523,21 +1697,6 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
                bv->buffer().errors("Paste");
                break;
 
-       case LFUN_UNICODE_INSERT: {
-               if (cmd.argument().empty())
-                       break;
-               docstring hexstring = cmd.argument();
-               if (isHex(hexstring)) {
-                       char_type c = hexToInt(hexstring);
-                       if (c >= 32 && c < 0x10ffff) {
-                               lyxerr << "Inserting c: " << c << endl;
-                               docstring s = docstring(1, c);
-                               lyx::dispatch(FuncRequest(LFUN_SELF_INSERT, s));
-                       }
-               }
-               break;
-       }
-
        case LFUN_QUOTE_INSERT: {
                cap::replaceSelection(cur);
                cur.recordUndo();
@@ -1696,6 +1855,7 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
                // reset the anchor.
                bvcur.setCursor(cur);
                bvcur.selection(true);
+               bvcur.setCurrentFont();
                if (cur.top() == old) {
                        // We didn't move one iota, so no need to update the screen.
                        cur.screenUpdateFlags(Update::SinglePar | Update::FitCursor);
@@ -1758,14 +1918,11 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
                // true (on).
 
                if (lyxrc.auto_region_delete && cur.selection())
-                       cutSelection(cur, false, false);
-
+                       cutSelection(cur, false);
                cur.clearSelection();
 
-               docstring::const_iterator cit = cmd.argument().begin();
-               docstring::const_iterator const end = cmd.argument().end();
-               for (; cit != end; ++cit)
-                       bv->translateAndInsert(*cit, this, cur);
+               for (char_type c : cmd.argument())
+                       bv->translateAndInsert(c, this, cur);
 
                cur.resetAnchor();
                moveCursor(cur, false);
@@ -1842,7 +1999,7 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
                if (cmd.argument().empty() && cur.selection()) {
                        // if command argument is empty use current selection as parameter.
                        docstring ds = cur.selectionAsString(false);
-                       cutSelection(cur, true, false);
+                       cutSelection(cur, false);
                        FuncRequest cmd0(cmd, ds);
                        inset = createInset(cur.buffer(), cmd0);
                } else {
@@ -1852,6 +2009,7 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
                        break;
                cur.recordUndo();
                insertInset(cur, inset);
+               cur.forceBufferUpdate();
                cur.posForward();
                break;
        }
@@ -2028,7 +2186,7 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
                        // don't pass "on" as argument
                        // (it would appear literally in the first cell)
                        docstring sel = cur.selectionAsString(false);
-                       MathMacroTemplate * macro = new MathMacroTemplate(cur.buffer());
+                       InsetMathMacroTemplate * macro = new InsetMathMacroTemplate(cur.buffer());
                        // create a macro template if we see "\\newcommand" somewhere, and
                        // an ordinary formula otherwise
                        if (!sel.empty()
@@ -2064,7 +2222,7 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
                        MacroType type = MacroTypeNewcommand;
                        if (s2 == "def")
                                type = MacroTypeDef;
-                       MathMacroTemplate * inset = new MathMacroTemplate(cur.buffer(),
+                       InsetMathMacroTemplate * inset = new InsetMathMacroTemplate(cur.buffer(),
                                from_utf8(token(s, ' ', 0)), nargs, false, type);
                        inset->setBuffer(bv->buffer());
                        insertInset(cur, inset);
@@ -2152,6 +2310,13 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
                break;
        }
 
+       case LFUN_FONT_CROSSOUT: {
+               Font font(ignore_font, ignore_language);
+               font.fontInfo().setXout(FONT_TOGGLE);
+               toggleAndShow(cur, this, font);
+               break;
+       }
+
        case LFUN_FONT_UNDERUNDERLINE: {
                Font font(ignore_font, ignore_language);
                font.fontInfo().setUuline(FONT_TOGGLE);
@@ -2205,7 +2370,7 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
        // Set the freefont using the contents of \param data dispatched from
        // the frontends and apply it at the current cursor location.
        case LFUN_TEXTSTYLE_UPDATE: {
-               Font font;
+               Font font(ignore_font, ignore_language);
                bool toggle;
                if (font.fromString(to_utf8(cmd.argument()), toggle)) {
                        freefont = font;
@@ -2301,7 +2466,7 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
                if (tclass.floats().typeExist(to_utf8(cmd.argument()))) {
                        cur.recordUndo();
                        if (cur.selection())
-                               cutSelection(cur, true, false);
+                               cutSelection(cur, false);
                        breakParagraph(cur);
 
                        if (cur.lastpos() != 0) {
@@ -2345,8 +2510,15 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
                docstring arg = cmd.argument();
                if (arg.empty()) {
                        arg = cur.selectionAsString(false);
-                       // FIXME
+                       // Too large. We unselect if needed and try to get
+                       // the first word in selection or under cursor
                        if (arg.size() > 100 || arg.empty()) {
+                               if (cur.selection()) {
+                                       DocIterator selbeg = cur.selectionBegin();
+                                       cur.clearSelection();
+                                       setCursorIntern(cur, selbeg.pit(), selbeg.pos());
+                                       cur.screenUpdateFlags(Update::Force);
+                               }
                                // Get word or selection
                                selectWordWhenUnderCursor(cur, WHOLE_WORD);
                                arg = cur.selectionAsString(false);
@@ -2459,27 +2631,27 @@ void Text::dispatch(Cursor & cur, FuncRequest & cmd)
                break;
 
        case LFUN_OUTLINE_UP:
-               outline(OutlineUp, cur);
+               outline(OutlineUp, cur, this);
                setCursor(cur, cur.pit(), 0);
                cur.forceBufferUpdate();
                needsUpdate = true;
                break;
 
        case LFUN_OUTLINE_DOWN:
-               outline(OutlineDown, cur);
+               outline(OutlineDown, cur, this);
                setCursor(cur, cur.pit(), 0);
                cur.forceBufferUpdate();
                needsUpdate = true;
                break;
 
        case LFUN_OUTLINE_IN:
-               outline(OutlineIn, cur);
+               outline(OutlineIn, cur, this);
                cur.forceBufferUpdate();
                needsUpdate = true;
                break;
 
        case LFUN_OUTLINE_OUT:
-               outline(OutlineOut, cur);
+               outline(OutlineOut, cur, this);
                cur.forceBufferUpdate();
                needsUpdate = true;
                break;
@@ -2818,19 +2990,13 @@ bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
                        for (; pit <= lastpit; ++pit) {
                                if (pars_[pit].layout() != lay)
                                        break;
-                               InsetList::const_iterator it = pars_[pit].insetList().begin();
-                               InsetList::const_iterator end = pars_[pit].insetList().end();
-                               for (; it != end; ++it) {
-                                       if (it->inset->lyxCode() == ARG_CODE) {
-                                               InsetArgument const * ins =
-                                                       static_cast<InsetArgument const *>(it->inset);
+                               for (auto const & table : pars_[pit].insetList())
+                                       if (InsetArgument const * ins = table.inset->asInsetArgument())
                                                if (ins->name() == arg) {
                                                        // we have this already
                                                        enable = false;
                                                        break;
                                                }
-                                       }
-                               }
                        }
                } else
                        enable = false;
@@ -2954,7 +3120,6 @@ bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
                break;
 
        case LFUN_CUT:
-       case LFUN_COPY:
                enable = cur.selection();
                break;
 
@@ -3038,17 +3203,37 @@ bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
 
        case LFUN_CHANGE_ACCEPT:
        case LFUN_CHANGE_REJECT:
-               // In principle, these LFUNs should only be enabled if there
-               // is a change at the current position/in the current selection.
-               // However, without proper optimizations, this will inevitably
-               // result in unacceptable performance - just imagine a user who
-               // wants to select the complete content of a long document.
                if (!cur.selection())
                        enable = cur.paragraph().isChanged(cur.pos());
-               else
-                       // TODO: context-sensitive enabling of LFUN_CHANGE_ACCEPT/REJECT
-                       // for selections.
-                       enable = true;
+               else {
+                       // will enable if there is a change in the selection
+                       enable = false;
+
+                       // cheap improvement for efficiency: using cached
+                       // buffer variable, if there is no change in the
+                       // document, no need to check further.
+                       if (!cur.buffer()->areChangesPresent())
+                               break;
+
+                       for (DocIterator it = cur.selectionBegin(); ; it.forwardPar()) {
+                               pos_type const beg = it.pos();
+                               pos_type end;
+                               bool const in_last_par = (it.pit() == cur.selectionEnd().pit() &&
+                                                         it.idx() == cur.selectionEnd().idx());
+                               if (in_last_par)
+                                       end = cur.selectionEnd().pos();
+                               else
+                                       // the +1 is needed for cases, e.g., where there is a
+                                       // paragraph break. See #11629.
+                                       end = it.lastpos() + 1;
+                               if (beg != end && it.paragraph().isChanged(beg, end)) {
+                                       enable = true;
+                                       break;
+                               }
+                               if (in_last_par)
+                                       break;
+                       }
+               }
                break;
 
        case LFUN_OUTLINE_UP:
@@ -3120,7 +3305,8 @@ bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
 
        case LFUN_LAYOUT: {
                DocumentClass const & tclass = cur.buffer()->params().documentClass();
-               docstring layout = cmd.argument();
+               bool const ignoreautonests = cmd.getArg(1) == "ignoreautonests";
+               docstring layout = ignoreautonests ? from_utf8(cmd.getArg(0)) : cmd.argument();
                if (layout.empty())
                        layout = tclass.defaultLayoutName();
                enable = !owner_->forcePlainLayout() && tclass.hasLayout(layout);
@@ -3147,8 +3333,22 @@ bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
                        enable = res;
                        break;
                }
+               else if (cmd.argument() == "previous") {
+                       // look if we have an environment in the previous par
+                       pit_type pit = cur.pit();
+                       Paragraph cpar = pars_[pit];
+                       if (pit > 0) {
+                               --pit;
+                               cpar = pars_[pit];
+                               enable = cpar.layout().isEnvironment();
+                               break;
+                       }
+                       enable = false;
+                       break;
+               }
                else if (cur.paragraph().layout().isEnvironment()) {
-                       enable = true;
+                       enable = cmd.argument() == "before"
+                               || cur.pos() > 0 || !isFirstInSequence(cur.pit());
                        break;
                }
                enable = false;
@@ -3189,6 +3389,7 @@ bool Text::getStatus(Cursor & cur, FuncRequest const & cmd,
        case LFUN_FONT_STATE:
        case LFUN_FONT_UNDERLINE:
        case LFUN_FONT_STRIKEOUT:
+       case LFUN_FONT_CROSSOUT:
        case LFUN_FONT_UNDERUNDERLINE:
        case LFUN_FONT_UNDERWAVE:
        case LFUN_TEXTSTYLE_APPLY: