3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
6 * \author Lars Gullik Bjønnes
8 * Full author contact details are available in file CREDITS.
13 #include "InsetLabel.h"
17 #include "buffer_funcs.h"
19 #include "BufferParams.h"
20 #include "BufferView.h"
21 #include "CutAndPaste.h"
22 #include "DispatchResult.h"
23 #include "FuncRequest.h"
24 #include "FuncStatus.h"
25 #include "InsetIterator.h"
28 #include "output_xhtml.h"
29 #include "ParIterator.h"
32 #include "TextClass.h"
33 #include "TocBackend.h"
35 #include "mathed/InsetMathHull.h"
36 #include "mathed/InsetMathRef.h"
38 #include "frontends/alert.h"
40 #include "support/convert.h"
41 #include "support/gettext.h"
42 #include "support/lstrings.h"
43 #include "support/lyxalgo.h"
46 using namespace lyx::support;
51 InsetLabel::InsetLabel(Buffer * buf, InsetCommandParams const & p)
52 : InsetCommand(buf, p)
56 void InsetLabel::initView()
58 // This seems to be used only for inset creation.
59 // Therefore we do not update refs here, since this would
60 // erroneously change refs from existing duplicate labels
62 updateLabel(getParam("name"));
66 void InsetLabel::uniqueLabel(docstring & label) const
68 docstring const new_label = label;
70 bool ambiguous = false;
71 while (buffer().activeLabel(label)) {
72 label = new_label + '-' + convert<docstring>(i);
77 // Warn the user that the label has been changed to something else.
78 frontend::Alert::warning(_("Label names must be unique!"),
79 bformat(_("The label %1$s already exists,\n"
80 "it will be changed to %2$s."), new_label, label));
85 void InsetLabel::updateLabel(docstring const & new_label)
87 docstring label = new_label;
89 setParam("name", label);
93 void InsetLabel::updateLabelAndRefs(docstring const & new_label,
96 docstring const old_label = getParam("name");
97 docstring label = new_label;
99 if (label == old_label)
102 // This handles undo groups automagically
103 UndoGroupHelper ugh(&buffer());
105 cursor->recordUndo();
106 setParam("name", label);
107 updateReferences(old_label, label);
111 void InsetLabel::updateReferences(docstring const & old_label,
112 docstring const & new_label)
115 for (auto const & p: buffer().references(old_label)) {
116 ugh.resetBuffer(p.second.buffer());
117 CursorData(p.second).recordUndo();
118 if (p.first->lyxCode() == MATH_REF_CODE) {
119 InsetMathRef * mi = p.first->asInsetMath()->asRefInset();
120 mi->changeTarget(new_label);
122 InsetCommand * ref = p.first->asInsetCommand();
123 ref->setParam("reference", new_label);
129 ParamInfo const & InsetLabel::findInfo(string const & /* cmdName */)
131 static ParamInfo param_info_;
132 if (param_info_.empty())
133 param_info_.add("name", ParamInfo::LATEX_REQUIRED,
134 ParamInfo::HANDLING_ESCAPE);
139 docstring InsetLabel::screenLabel() const
141 return screen_label_;
145 void InsetLabel::updateBuffer(ParIterator const & par, UpdateType utype)
147 docstring const & label = getParam("name");
149 // Check if this one is active (i.e., neither deleted with change-tracking
150 // nor in an inset that does not produce output, such as notes or inactive branches)
151 Paragraph const & para = par.paragraph();
152 bool active = !para.isDeleted(par.pos()) && para.inInset().producesOutput();
153 // If not, check whether we are in a deleted/non-outputting inset
155 for (size_type sl = 0 ; sl < par.depth() ; ++sl) {
156 Paragraph const & outer_par = par[sl].paragraph();
157 if (outer_par.isDeleted(par[sl].pos())
158 || !outer_par.inInset().producesOutput()) {
165 if (buffer().activeLabel(label) && active) {
166 // Problem: We already have an active InsetLabel with the same name!
167 screen_label_ = _("DUPLICATE: ") + label;
170 buffer().setInsetLabel(label, this, active);
171 screen_label_ = label;
173 if (utype == OutputUpdate) {
174 // save info on the active counter
175 Counters const & cnts =
176 buffer().masterBuffer()->params().documentClass().counters();
177 active_counter_ = cnts.currentCounter();
178 Language const * lang = par->getParLanguage(buffer().params());
179 if (lang && !active_counter_.empty()) {
180 counter_value_ = cnts.theCounter(active_counter_, lang->code());
181 pretty_counter_ = cnts.prettyCounter(active_counter_, lang->code());
183 counter_value_ = from_ascii("#");
184 pretty_counter_ = from_ascii("#");
190 void InsetLabel::addToToc(DocIterator const & cpit, bool output_active,
191 UpdateType, TocBackend & backend) const
193 docstring const & label = getParam("name");
195 // inactive labels get a cross mark
196 if (buffer().insetLabel(label, true) != this)
197 output_active = false;
199 // We put both active and inactive labels to the outliner
200 shared_ptr<Toc> toc = backend.toc("label");
201 toc->push_back(TocItem(cpit, 0, screen_label_, output_active));
202 // The refs get assigned only to the active label. If no active one exists,
203 // assign the (BROKEN) refs to the first inactive one.
204 if (buffer().insetLabel(label, true) == this || !buffer().activeLabel(label)) {
205 for (auto const & p : buffer().references(label)) {
206 DocIterator const ref_pit(p.second);
207 if (p.first->lyxCode() == MATH_REF_CODE)
208 toc->push_back(TocItem(ref_pit, 1,
209 p.first->asInsetMath()->asRefInset()->screenLabel(),
212 toc->push_back(TocItem(ref_pit, 1,
213 static_cast<InsetRef *>(p.first)->getTOCString(),
220 bool InsetLabel::getStatus(Cursor & cur, FuncRequest const & cmd,
221 FuncStatus & status) const
224 switch (cmd.action()) {
225 case LFUN_LABEL_INSERT_AS_REFERENCE:
226 case LFUN_LABEL_COPY_AS_REFERENCE:
229 case LFUN_INSET_MODIFY:
230 if (cmd.getArg(0) == "changetype") {
231 // this is handled by InsetCommand,
232 // but not by InsetLabel.
239 return InsetCommand::getStatus(cur, cmd, status);
242 status.setEnabled(enabled);
247 void InsetLabel::doDispatch(Cursor & cur, FuncRequest & cmd)
249 switch (cmd.action()) {
251 case LFUN_INSET_MODIFY: {
252 // the only other option here is "changetype", and we
253 // do not have different types.
254 if (cmd.getArg(0) != "label") {
258 InsetCommandParams p(LABEL_CODE);
260 InsetCommand::string2params(to_utf8(cmd.argument()), p);
261 if (p.getCmdName().empty()) {
262 cur.noScreenUpdate();
265 if (p["name"] != params()["name"]) {
266 // undo is handled in updateLabelAndRefs
267 updateLabelAndRefs(p["name"], &cur);
269 cur.forceBufferUpdate();
273 case LFUN_LABEL_COPY_AS_REFERENCE: {
274 InsetCommandParams p(REF_CODE, "ref");
275 p["reference"] = getParam("name");
276 cap::clearSelection();
277 cap::copyInset(cur, new InsetRef(buffer_, p), getParam("name"));
281 case LFUN_LABEL_INSERT_AS_REFERENCE: {
282 InsetCommandParams p(REF_CODE, "ref");
283 p["reference"] = getParam("name");
284 string const data = InsetCommand::params2string(p);
285 lyx::dispatch(FuncRequest(LFUN_INSET_INSERT, data));
290 InsetCommand::doDispatch(cur, cmd);
296 int InsetLabel::plaintext(odocstringstream & os,
297 OutputParams const &, size_t) const
299 docstring const str = getParam("name");
300 os << '<' << str << '>';
301 return 2 + str.size();
305 int InsetLabel::docbook(odocstream & os, OutputParams const & runparams) const
307 os << "<!-- anchor id=\""
308 << sgml::cleanID(buffer(), runparams, getParam("name"))
314 docstring InsetLabel::xhtml(XHTMLStream & xs, OutputParams const &) const
317 // Unfortunately, the name attribute has been deprecated, so we have to use
318 // id here to get the document to validate as XHTML 1.1. This will cause a
319 // problem with some browsers, though, I'm sure. (Guess which!) So we will
320 // have to figure out what to do about this later.
321 docstring const attr = "id=\"" + html::cleanAttr(getParam("name")) + '"';
322 xs << html::CompTag("a", to_utf8(attr));