]> git.lyx.org Git - features.git/blob - src/frontends/qt/TocWidget.cpp
Fix ToC action when cursor is in adv. F&R pane
[features.git] / src / frontends / qt / TocWidget.cpp
1 /**
2  * \file TocWidget.cpp
3  * This file is part of LyX, the document processor.
4  * Licence details can be found in the file COPYING.
5  *
6  * \author John Levon
7  * \author Abdelrazak Younes
8  *
9  * Full author contact details are available in file CREDITS.
10  */
11
12 #include <config.h>
13
14 #include "TocWidget.h"
15
16 #include "GuiApplication.h"
17 #include "GuiView.h"
18 #include "qt_helpers.h"
19 #include "TocModel.h"
20 #include "FancyLineEdit.h"
21
22 #include "Buffer.h"
23 #include "BufferView.h"
24 #include "Cursor.h"
25 #include "CutAndPaste.h"
26 #include "FuncRequest.h"
27 #include "FuncStatus.h"
28 #include "LyX.h"
29 #include "Menus.h"
30 #include "TocBackend.h"
31
32 #include "insets/InsetCommand.h"
33 #include "insets/InsetRef.h"
34
35 #include "support/debug.h"
36 #include "support/lassert.h"
37
38 #include <QHeaderView>
39 #include <QMenu>
40 #include <QTimer>
41
42 #include <vector>
43
44 using namespace std;
45
46 namespace lyx {
47 namespace frontend {
48
49 TocWidget::TocWidget(GuiView & gui_view, QWidget * parent)
50         : QWidget(parent), depth_(0), persistent_(false), gui_view_(gui_view),
51           timer_(new QTimer(this))
52 {
53         setupUi(this);
54
55         moveOutTB->setIcon(QIcon(getPixmap("images/", "outline-out", "svgz,png")));
56         moveInTB->setIcon(QIcon(getPixmap("images/", "outline-in", "svgz,png")));
57         moveUpTB->setIcon(QIcon(getPixmap("images/", "outline-up", "svgz,png")));
58         moveDownTB->setIcon(QIcon(getPixmap("images/", "outline-down", "svgz,png")));
59         updateTB->setIcon(QIcon(getPixmap("images/", "reload", "svgz,png")));
60
61         QSize icon_size = gui_view.iconSize();
62         moveOutTB->setIconSize(icon_size);
63         moveInTB->setIconSize(icon_size);
64         moveUpTB->setIconSize(icon_size);
65         moveDownTB->setIconSize(icon_size);
66         updateTB->setIconSize(icon_size);
67
68         // avoid flickering
69         tocTV->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
70
71         tocTV->showColumn(0);
72
73         // hide the pointless QHeader for now
74         // in the future, new columns may appear
75         // like labels, bookmarks, etc...
76         // tocTV->header()->hide();
77         tocTV->header()->setVisible(false);
78
79         // Only one item selected at a time.
80         tocTV->setSelectionMode(QAbstractItemView::SingleSelection);
81
82         // The toc types combo won't change its model.
83         typeCO->setModel(gui_view_.tocModels().nameModel());
84
85         // The filter bar
86         filter_ = new FancyLineEdit(this);
87         filter_->setClearButton(true);
88         filter_->setPlaceholderText(qt_("All items"));
89         filterBarL->addWidget(filter_, 0);
90         filterLA->setBuddy(filter_);
91         setFocusProxy(filter_);
92
93         // Make sure the buttons are disabled when first shown without a loaded
94         // Buffer.
95         enableControls(false);
96
97         // make us responsible for the context menu of the tabbar
98         setContextMenuPolicy(Qt::CustomContextMenu);
99         connect(this, SIGNAL(customContextMenuRequested(const QPoint &)),
100                 this, SLOT(showContextMenu(const QPoint &)));
101         connect(tocTV, SIGNAL(customContextMenuRequested(const QPoint &)),
102                 this, SLOT(showContextMenu(const QPoint &)));
103         connect(filter_, SIGNAL(textEdited(QString)),
104                 this, SLOT(filterContents()));
105 #if (QT_VERSION < 0x050000)
106         connect(filter_, SIGNAL(downPressed()),
107                 tocTV, SLOT(setFocus()));
108 #else
109         connect(filter_, &FancyLineEdit::downPressed,
110                 tocTV, [this](){ focusAndHighlight(tocTV); });
111 #endif
112         connect(activeFilterCO, SIGNAL(activated(int)),
113                 this, SLOT(filterContents()));
114
115         // setting the update timer
116         timer_->setSingleShot(true);
117         connect(timer_, SIGNAL(timeout()), this, SLOT(finishUpdateView()));
118
119         init(QString());
120 }
121
122
123 void TocWidget::showContextMenu(const QPoint & pos)
124 {
125         std::string name = "context-toc-" + fromqstr(current_type_);
126         QMenu * menu = guiApp->menus().menu(toqstr(name), gui_view_);
127         if (!menu)
128                 return;
129         menu->exec(mapToGlobal(pos));
130 }
131
132
133 Inset * TocWidget::itemInset() const
134 {
135         QModelIndex const & index = tocTV->currentIndex();
136         TocItem const & item =
137                 gui_view_.tocModels().currentItem(current_type_, index);
138         DocIterator const & dit = item.dit();
139
140         Inset * inset = nullptr;
141         if (current_type_ == "label"
142                   || current_type_ == "graphics"
143                   || current_type_ == "citation"
144                   || current_type_ == "child")
145                 inset = dit.nextInset();
146
147         else if (current_type_ == "branch"
148                          || current_type_ == "index"
149                          || current_type_ == "change"
150                          || current_type_ == "table"
151                      || current_type_ == "listing"
152                      || current_type_ == "figure")
153                 inset = &dit.inset();
154
155         return inset;
156 }
157
158
159 bool TocWidget::getStatus(Cursor & cur, FuncRequest const & cmd,
160         FuncStatus & status) const
161 {
162         Inset * inset = itemInset();
163         FuncRequest tmpcmd(cmd);
164
165         QModelIndex const & index = tocTV->currentIndex();
166         TocItem const & item =
167                 gui_view_.tocModels().currentItem(current_type_, index);
168
169         switch (cmd.action())
170         {
171         case LFUN_CHANGE_ACCEPT:
172         case LFUN_CHANGE_REJECT:
173         case LFUN_OUTLINE_UP:
174         case LFUN_OUTLINE_DOWN:
175         case LFUN_OUTLINE_IN:
176         case LFUN_OUTLINE_OUT:
177         case LFUN_SECTION_SELECT:
178                 status.setEnabled((bool)item.dit());
179                 return true;
180
181         case LFUN_LABEL_COPY_AS_REFERENCE: {
182                 // For labels in math, we need to supply the label as a string
183                 FuncRequest label_copy(LFUN_LABEL_COPY_AS_REFERENCE, item.str());
184                 if (inset)
185                         return inset->getStatus(cur, label_copy, status);
186                 break;
187         }
188
189         default:
190                 if (inset)
191                         return inset->getStatus(cur, tmpcmd, status);
192         }
193
194         return false;
195 }
196
197
198 void TocWidget::doDispatch(Cursor & cur, FuncRequest const & cmd,
199                 DispatchResult & dr)
200 {
201
202         Inset * inset = itemInset();
203
204         QModelIndex const & index = tocTV->currentIndex();
205         TocItem const & item =
206                 gui_view_.tocModels().currentItem(current_type_, index);
207
208         // Start an undo group.
209         cur.beginUndoGroup();
210
211         switch (cmd.action())
212         {
213         case LFUN_CHANGE_ACCEPT:
214         case LFUN_CHANGE_REJECT: {
215                 // The action is almost always LYX_UNKNOWN_ACTION, which will
216                 // have the effect of moving the cursor to the location of
217                 // the change. (See TocItem::action.)
218                 dispatch(item.action());
219                 // If we do not reset the origin, then the request will be sent back
220                 // here, and we are in an infinite loop. But we need the dispatch
221                 // machinery to clean up for us, if the cursor is in an inset that
222                 // will be deleted. See bug #10316.
223                 FuncRequest tmpcmd(cmd);
224                 tmpcmd.setOrigin(FuncRequest::INTERNAL);
225                 dispatch(tmpcmd);
226                 dr.forceBufferUpdate();
227                 break;
228         }
229
230         case LFUN_SECTION_SELECT:
231                 dispatch(item.action());
232                 cur.dispatch(cmd);
233                 // necessary to get the selection drawn.
234                 cur.buffer()->changed(true);
235                 gui_view_.setFocus();
236                 break;
237
238         case LFUN_LABEL_COPY_AS_REFERENCE: {
239                 // For labels in math, we need to supply the label as a string
240                 FuncRequest label_copy(LFUN_LABEL_COPY_AS_REFERENCE, item.str());
241                 if (inset)
242                         inset->dispatch(cur, label_copy);
243                 break;
244         }
245
246         case LFUN_OUTLINE_UP:
247         case LFUN_OUTLINE_DOWN:
248         case LFUN_OUTLINE_IN:
249         case LFUN_OUTLINE_OUT:
250                 outline(cmd.action());
251                 break;
252
253         default: {
254                 FuncRequest tmpcmd(cmd);
255                 if (inset)
256                         inset->dispatch(cur, tmpcmd);
257         }
258         }
259         cur.endUndoGroup();
260 }
261
262
263 void TocWidget::on_tocTV_activated(QModelIndex const & index)
264 {
265         goTo(index);
266 }
267
268
269 void TocWidget::on_tocTV_pressed(QModelIndex const & index)
270 {
271
272         Qt::MouseButtons const button = QApplication::mouseButtons();
273         if (button & Qt::LeftButton) {
274                 goTo(index);
275                 gui_view_.setFocus();
276                 gui_view_.activateWindow();
277         }
278 }
279
280
281 void TocWidget::goTo(QModelIndex const & index)
282 {
283         LYXERR(Debug::GUI, "goto " << index.row()
284                 << ", " << index.column());
285
286         sendDispatch(gui_view_.tocModels().goTo(current_type_, index));
287 }
288
289
290 void TocWidget::on_updateTB_clicked()
291 {
292         // The backend update can take some time so we disable
293         // the controls while waiting.
294         enableControls(false);
295         gui_view_.currentBufferView()->buffer().updateBuffer();
296 }
297
298
299 void TocWidget::on_sortCB_stateChanged(int state)
300 {
301         gui_view_.tocModels().sort(current_type_, state == Qt::Checked);
302         updateViewNow();
303 }
304
305
306 void TocWidget::on_persistentCB_stateChanged(int state)
307 {
308         persistent_ = state == Qt::Checked;
309 }
310
311
312 #if 0
313 /* FIXME (Ugras 17/11/06):
314 I have implemented a indexDepth function to get the model indices. In my
315 opinion, somebody should derive a new qvariant class for tocModelItem
316 which saves the string data and depth information. That will save the
317 depth calculation.  */
318
319 static int indexDepth(QModelIndex const & index, int depth = -1)
320 {
321         ++depth;
322         return index.parent() == QModelIndex()
323                 ? depth : indexDepth(index.parent(), depth);
324 }
325 #endif
326
327 void TocWidget::on_depthSL_valueChanged(int depth)
328 {
329         if (depth == depth_)
330                 return;
331         setTreeDepth(depth);
332         gui_view_.setFocus();
333 }
334
335
336 void TocWidget::setTreeDepth(int depth)
337 {
338         depth_ = depth;
339         if (!tocTV->model())
340                 return;
341
342         if (depth == 0)
343                 tocTV->collapseAll();
344         else
345                 tocTV->expandToDepth(depth - 1);
346 }
347
348
349 void TocWidget::on_typeCO_currentIndexChanged(int index)
350 {
351
352         if (index == -1)
353                 return;
354         current_type_ = typeCO->itemData(index).toString();
355         updateViewNow();
356         if (typeCO->hasFocus())
357                 gui_view_.setFocus();
358 }
359
360
361 void TocWidget::outline(FuncCode func_code)
362 {
363         QModelIndexList const & list = tocTV->selectionModel()->selectedIndexes();
364         if (list.isEmpty())
365                 return;
366
367         //if another window is active, this attempt will fail,
368         //but it will work at least for the second attempt
369         gui_view_.activateWindow();
370
371         enableControls(false);
372         goTo(list[0]);
373         sendDispatch(FuncRequest(func_code));
374         enableControls(true);
375         gui_view_.setFocus();
376 }
377
378
379 void TocWidget::sendDispatch(FuncRequest fr)
380 {
381
382         fr.setViewOrigin(&gui_view_);
383         GuiWorkArea * old_wa = gui_view_.currentWorkArea();
384         GuiWorkArea * doc_wa = gui_view_.currentMainWorkArea();
385         /* The ToC command should be dispatched to the document work area,
386          * not the Adv. Find&Replace (which is the only other know
387          * possibility.
388          */
389         if (doc_wa != nullptr && doc_wa != old_wa)
390                 gui_view_.setCurrentWorkArea(doc_wa);
391         DispatchResult const & dr = dispatch(fr);
392         /* If the current workarea has not explicitely changed, and the
393          * original one is still visible, let's reset it.
394          */
395         if (gui_view_.currentWorkArea() == doc_wa
396              && gui_view_.hasVisibleWorkArea(old_wa)
397              && doc_wa != old_wa)
398                 gui_view_.setCurrentWorkArea(old_wa);
399         if (dr.error())
400                 gui_view_.message(dr.message());
401 }
402
403
404 void TocWidget::on_moveUpTB_clicked()
405 {
406         outline(LFUN_OUTLINE_UP);
407 }
408
409
410 void TocWidget::on_moveDownTB_clicked()
411 {
412         outline(LFUN_OUTLINE_DOWN);
413 }
414
415
416 void TocWidget::on_moveInTB_clicked()
417 {
418         outline(LFUN_OUTLINE_IN);
419 }
420
421
422 void TocWidget::on_moveOutTB_clicked()
423 {
424         outline(LFUN_OUTLINE_OUT);
425 }
426
427
428 void TocWidget::select(QModelIndex const & index)
429 {
430         if (!index.isValid()) {
431                 LYXERR(Debug::GUI, "TocWidget::select(): QModelIndex is invalid!");
432                 return;
433         }
434
435         tocTV->scrollTo(index);
436         tocTV->clearSelection();
437         tocTV->setCurrentIndex(index);
438 }
439
440
441 void TocWidget::enableControls(bool enable)
442 {
443         updateTB->setEnabled(enable);
444
445         if (!canOutline())
446                 enable = false;
447
448         moveUpTB->setEnabled(enable);
449         moveDownTB->setEnabled(enable);
450         moveInTB->setEnabled(enable);
451         moveOutTB->setEnabled(enable);
452 }
453
454
455 void TocWidget::updateView()
456 {
457         if (!gui_view_.documentBufferView()) {
458                 tocTV->setModel(nullptr);
459                 depthSL->setMaximum(0);
460                 depthSL->setValue(0);
461                 setEnabled(false);
462                 return;
463         }
464         setEnabled(true);
465         bool const is_sortable = isSortable();
466         sortCB->setEnabled(is_sortable);
467         bool focus = tocTV->hasFocus();
468         tocTV->setEnabled(false);
469         tocTV->setUpdatesEnabled(false);
470
471         QAbstractItemModel * toc_model =
472                         gui_view_.tocModels().model(current_type_);
473         if (tocTV->model() != toc_model) {
474                 tocTV->setModel(toc_model);
475                 tocTV->setEditTriggers(QAbstractItemView::NoEditTriggers);
476                 if (persistent_)
477                         setTreeDepth(depth_);
478         }
479
480         sortCB->blockSignals(true);
481         sortCB->setChecked(is_sortable
482                 && gui_view_.tocModels().isSorted(current_type_));
483         sortCB->blockSignals(false);
484
485         persistentCB->setEnabled(canNavigate());
486
487         bool controls_enabled = toc_model && toc_model->rowCount() > 0
488                 && !gui_view_.documentBufferView()->buffer().isReadonly();
489         enableControls(controls_enabled);
490
491         depthSL->setMaximum(gui_view_.tocModels().depth(current_type_));
492         depthSL->setValue(depth_);
493         tocTV->setEnabled(true);
494         tocTV->setUpdatesEnabled(true);
495         if (focus)
496                 tocTV->setFocus();
497
498         // Expensive operations are on a timer.  We finish the update immediately
499         // for sparse edition actions, i.e. there was no edition/cursor movement
500         // recently, then every 300ms.
501         if (!timer_->isActive()) {
502                 finishUpdateView();
503                 timer_->start(300);
504         }
505 }
506
507
508 void TocWidget::updateViewNow()
509 {
510         timer_->stop();
511         updateView();
512 }
513
514
515 void TocWidget::finishUpdateView()
516 {
517         // Profiling shows that this is the expensive stuff in the context of typing
518         // text and moving with arrows. For bigger operations, this is negligible,
519         // and outweighted by TocModels::reset() anyway.
520         if (canNavigate()) {
521                 if (!persistent_)
522                         setTreeDepth(depth_);
523                 persistentCB->setChecked(persistent_);
524                 // select the item at current cursor location
525                 if (gui_view_.documentBufferView()) {
526                         DocIterator const & dit = gui_view_.documentBufferView()->cursor();
527                         select(gui_view_.tocModels().currentIndex(current_type_, dit));
528                 }
529         }
530         filterContents();
531 }
532
533
534 void TocWidget::filterContents()
535 {
536         if (!tocTV->model())
537                 return;
538
539         QModelIndexList indices = tocTV->model()->match(
540                 tocTV->model()->index(0, 0),
541                 Qt::DisplayRole, ".*", -1,
542 #if QT_VERSION >= QT_VERSION_CHECK(5, 15, 0)
543                 Qt::MatchFlags(Qt::MatchRegularExpression|Qt::MatchRecursive));
544 #else
545                 // deprecated in Qt 5.15.
546                 Qt::MatchFlags(Qt::MatchRegExp|Qt::MatchRecursive));
547 #endif
548
549         bool const show_active =
550                 activeFilterCO->currentIndex() != 2;
551         bool const show_inactive =
552                 activeFilterCO->currentIndex() != 1;
553
554         int size = indices.size();
555         QString const matchstring = filter_ ? filter_->text() : QString();
556         for (int i = 0; i < size; i++) {
557                 QModelIndex index = indices[i];
558                 bool matches = index.data().toString().contains(
559                                         matchstring, Qt::CaseInsensitive);
560                 TocItem const & item =
561                         gui_view_.tocModels().currentItem(current_type_, index);
562                 matches &= (show_active && item.isOutput()) || (show_inactive && !item.isOutput());
563                 tocTV->setRowHidden(index.row(), index.parent(), !matches);
564         }
565         // recursively unhide parents of unhidden children
566         for (int i = size - 1; i >= 0; i--) {
567                 QModelIndex index = indices[i];
568                 if (!tocTV->isRowHidden(index.row(), index.parent())
569                     && index.parent() != QModelIndex())
570                         tocTV->setRowHidden(index.parent().row(),
571                                             index.parent().parent(), false);
572         }
573 }
574
575
576 static QString decodeType(QString const & str)
577 {
578         QString type = str;
579         if (type.contains("tableofcontents"))
580                 type = "tableofcontents";
581         else if (type.contains("lstlistoflistings"))
582                 type = "listing";
583         else if (type.contains("floatlist")) {
584                 if (type.contains("\"figure"))
585                         type = "figure";
586                 else if (type.contains("\"table"))
587                         type = "table";
588                 else if (type.contains("\"algorithm"))
589                         type = "algorithm";
590         }
591         return type;
592 }
593
594
595 void TocWidget::init(QString const & str)
596 {
597         int new_index;
598         if (str.isEmpty())
599                 new_index = typeCO->findData(current_type_);
600         else
601                 new_index = typeCO->findData(decodeType(str));
602
603         // If everything else fails, settle on the table of contents which is
604         // guaranteed to exist.
605         if (new_index == -1) {
606                 current_type_ = "tableofcontents";
607                 new_index = typeCO->findData(current_type_);
608         } else {
609                 current_type_ = typeCO->itemData(new_index).toString();
610         }
611
612         typeCO->blockSignals(true);
613         typeCO->setCurrentIndex(new_index);
614         typeCO->blockSignals(false);
615         updateViewNow();
616 }
617
618 } // namespace frontend
619 } // namespace lyx
620
621 #include "moc_TocWidget.cpp"