1 /***************************************************************************
2 * Copyright (C) 2005-2020 by the Quassel Project *
3 * devel@quassel-irc.org *
4 * *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) version 3. *
9 * *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
14 * *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
19 ***************************************************************************/
20
21 #include "bufferview.h"
22
23 #include <QAction>
24 #include <QApplication>
25 #include <QFlags>
26 #include <QHeaderView>
27 #include <QLineEdit>
28 #include <QMenu>
29 #include <QMessageBox>
30 #include <QSet>
31 #include <QVBoxLayout>
32
33 #include "action.h"
34 #include "buffermodel.h"
35 #include "buffersettings.h"
36 #include "buffersyncer.h"
37 #include "bufferviewfilter.h"
38 #include "client.h"
39 #include "contextmenuactionprovider.h"
40 #include "graphicalui.h"
41 #include "network.h"
42 #include "networkmodel.h"
43
44 /*****************************************
45 * The TreeView showing the Buffers
46 *****************************************/
47 // Please be carefull when reimplementing methods which are used to inform the view about changes to the data
48 // to be on the safe side: call QTreeView's method aswell (or TreeViewTouch's)
BufferView(QWidget * parent)49 BufferView::BufferView(QWidget* parent)
50 : TreeViewTouch(parent)
51 {
52 connect(this, &QTreeView::collapsed, this, &BufferView::storeExpandedState);
53 connect(this, &QTreeView::expanded, this, &BufferView::storeExpandedState);
54
55 setSelectionMode(QAbstractItemView::ExtendedSelection);
56
57 QAbstractItemDelegate* oldDelegate = itemDelegate();
58 auto* tristateDelegate = new BufferViewDelegate(this);
59 setItemDelegate(tristateDelegate);
60 delete oldDelegate;
61 }
62
init()63 void BufferView::init()
64 {
65 header()->setContextMenuPolicy(Qt::ActionsContextMenu);
66 hideColumn(1);
67 hideColumn(2);
68 setIndentation(10);
69
70 // New entries will be expanded automatically when added; no need to call expandAll()
71
72 header()->hide(); // nobody seems to use this anyway
73
74 setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
75
76 setAnimated(true);
77
78 // FIXME This is to workaround bug #663
79 setUniformRowHeights(true);
80
81 #ifndef QT_NO_DRAGANDDROP
82 setDragEnabled(true);
83 setAcceptDrops(true);
84 setDropIndicatorShown(true);
85 #endif
86
87 setSortingEnabled(true);
88 sortByColumn(0, Qt::AscendingOrder);
89
90 #if defined Q_OS_MACOS || defined Q_OS_WIN
91 // afaik this is better on Mac and Windows
92 connect(this, &QAbstractItemView::activated, this, &BufferView::joinChannel, Qt::UniqueConnection);
93 #else
94 connect(this, &QAbstractItemView::doubleClicked, this, &BufferView::joinChannel, Qt::UniqueConnection);
95 #endif
96 }
97
setModel(QAbstractItemModel * model)98 void BufferView::setModel(QAbstractItemModel* model)
99 {
100 delete selectionModel();
101
102 TreeViewTouch::setModel(model);
103 init();
104 // remove old Actions
105 QList<QAction*> oldactions = header()->actions();
106 foreach (QAction* action, oldactions) {
107 header()->removeAction(action);
108 action->deleteLater();
109 }
110
111 if (!model)
112 return;
113
114 QString sectionName;
115 QAction* showSection;
116 for (int i = 1; i < model->columnCount(); i++) {
117 sectionName = (model->headerData(i, Qt::Horizontal, Qt::DisplayRole)).toString();
118 showSection = new QAction(sectionName, header());
119 showSection->setCheckable(true);
120 showSection->setChecked(!isColumnHidden(i));
121 showSection->setProperty("column", i);
122 connect(showSection, &QAction::toggled, this, &BufferView::toggleHeader);
123 header()->addAction(showSection);
124 }
125
126 connect(model, &QAbstractItemModel::layoutChanged, this, &BufferView::on_layoutChanged);
127
128 // Make sure collapsation is correct after setting a model
129 // This might not be needed here, only in BufferView::setFilteredModel(). If issues arise, just
130 // move down to setFilteredModel (which calls this function).
131 setExpandedState();
132 }
133
setFilteredModel(QAbstractItemModel * model_,BufferViewConfig * config)134 void BufferView::setFilteredModel(QAbstractItemModel* model_, BufferViewConfig* config)
135 {
136 auto* filter = qobject_cast<BufferViewFilter*>(model());
137 if (filter) {
138 filter->setConfig(config);
139 setConfig(config);
140 return;
141 }
142
143 if (model()) {
144 disconnect(this, nullptr, model(), nullptr);
145 disconnect(model(), nullptr, this, nullptr);
146 }
147
148 if (!model_) {
149 setModel(model_);
150 }
151 else {
152 auto* filter = new BufferViewFilter(model_, config);
153 setModel(filter);
154 connect(filter, &BufferViewFilter::configChanged, this, &BufferView::on_configChanged);
155 }
156 setConfig(config);
157 }
158
setConfig(BufferViewConfig * config)159 void BufferView::setConfig(BufferViewConfig* config)
160 {
161 if (_config == config)
162 return;
163
164 if (_config) {
165 disconnect(_config, nullptr, this, nullptr);
166 }
167
168 _config = config;
169 if (config) {
170 connect(config, &BufferViewConfig::networkIdSet, this, &BufferView::setRootIndexForNetworkId);
171 setRootIndexForNetworkId(config->networkId());
172 }
173 else {
174 setIndentation(10);
175 setRootIndex(QModelIndex());
176 }
177 }
178
setRootIndexForNetworkId(const NetworkId & networkId)179 void BufferView::setRootIndexForNetworkId(const NetworkId& networkId)
180 {
181 if (!networkId.isValid() || !model()) {
182 setIndentation(10);
183 setRootIndex(QModelIndex());
184 }
185 else {
186 setIndentation(5);
187 int networkCount = model()->rowCount();
188 QModelIndex child;
189 for (int i = 0; i < networkCount; i++) {
190 child = model()->index(i, 0);
191 if (networkId == model()->data(child, NetworkModel::NetworkIdRole).value<NetworkId>())
192 setRootIndex(child);
193 }
194 }
195 }
196
joinChannel(const QModelIndex & index)197 void BufferView::joinChannel(const QModelIndex& index)
198 {
199 BufferInfo::Type bufferType = (BufferInfo::Type)index.data(NetworkModel::BufferTypeRole).value<int>();
200
201 if (bufferType != BufferInfo::ChannelBuffer)
202 return;
203
204 BufferInfo bufferInfo = index.data(NetworkModel::BufferInfoRole).value<BufferInfo>();
205
206 Client::userInput(bufferInfo, QString("/JOIN %1").arg(bufferInfo.bufferName()));
207 }
208
dropEvent(QDropEvent * event)209 void BufferView::dropEvent(QDropEvent* event)
210 {
211 QModelIndex index = indexAt(event->pos());
212
213 QRect indexRect = visualRect(index);
214 QPoint cursorPos = event->pos();
215
216 // check if we're really _on_ the item and not indicating a move to just above or below the item
217 // Magic margin number for this is from QAbstractItemViewPrivate::position()
218 const int margin = 2;
219 if (cursorPos.y() - indexRect.top() < margin || indexRect.bottom() - cursorPos.y() < margin)
220 return TreeViewTouch::dropEvent(event);
221
222 // If more than one buffer was being dragged, treat this as a rearrangement instead of a merge request
223 QList<QPair<NetworkId, BufferId>> bufferList = Client::networkModel()->mimeDataToBufferList(event->mimeData());
224 if (bufferList.count() != 1)
225 return TreeViewTouch::dropEvent(event);
226
227 // Get the Buffer ID of the buffer that was being dragged
228 BufferId bufferId2 = bufferList[0].second;
229
230 // Get the Buffer ID of the target buffer
231 BufferId bufferId1 = index.data(NetworkModel::BufferIdRole).value<BufferId>();
232
233 // If the source and target are the same buffer, this was an aborted rearrangement
234 if (bufferId1 == bufferId2)
235 return TreeViewTouch::dropEvent(event);
236
237 // Get index of buffer that was being dragged
238 QModelIndex index2 = Client::networkModel()->bufferIndex(bufferId2);
239
240 // If the buffer being dragged is a channel and we're still joined to it, treat this as a rearrangement
241 // This prevents us from being joined to a channel with no associated UI elements
242 if (index2.data(NetworkModel::BufferTypeRole) == BufferInfo::ChannelBuffer && index2.data(NetworkModel::ItemActiveRole) == true)
243 return TreeViewTouch::dropEvent(event);
244
245 // If the source buffer is not mergeable(AKA not a Channel and not a Query), try rearranging instead
246 if (index2.data(NetworkModel::BufferTypeRole) != BufferInfo::ChannelBuffer
247 && index2.data(NetworkModel::BufferTypeRole) != BufferInfo::QueryBuffer)
248 return TreeViewTouch::dropEvent(event);
249
250 // If the target buffer is not mergeable(AKA not a Channel and not a Query), try rearranging instead
251 if (index.data(NetworkModel::BufferTypeRole) != BufferInfo::ChannelBuffer
252 && index.data(NetworkModel::BufferTypeRole) != BufferInfo::QueryBuffer)
253 return TreeViewTouch::dropEvent(event);
254
255 // Confirm that the user really wants to merge the buffers before doing so
256 int res = QMessageBox::question(nullptr,
257 tr("Merge buffers permanently?"),
258 tr("Do you want to merge the buffer \"%1\" permanently into buffer \"%2\"?\n This cannot be reversed!")
259 .arg(Client::networkModel()->bufferName(bufferId2))
260 .arg(Client::networkModel()->bufferName(bufferId1)),
261 QMessageBox::Yes | QMessageBox::No,
262 QMessageBox::No);
263 if (res == QMessageBox::Yes) {
264 Client::mergeBuffersPermanently(bufferId1, bufferId2);
265 }
266 }
267
removeSelectedBuffers(bool permanently)268 void BufferView::removeSelectedBuffers(bool permanently)
269 {
270 if (!config())
271 return;
272
273 BufferId bufferId;
274 QSet<BufferId> removedRows;
275 foreach (QModelIndex index, selectionModel()->selectedIndexes()) {
276 if (index.data(NetworkModel::ItemTypeRole) != NetworkModel::BufferItemType)
277 continue;
278
279 bufferId = index.data(NetworkModel::BufferIdRole).value<BufferId>();
280 if (removedRows.contains(bufferId))
281 continue;
282
283 removedRows << bufferId;
284 }
285
286 foreach (BufferId bufferId, removedRows) {
287 if (permanently)
288 config()->requestRemoveBufferPermanently(bufferId);
289 else
290 config()->requestRemoveBuffer(bufferId);
291 }
292 }
293
rowsInserted(const QModelIndex & parent,int start,int end)294 void BufferView::rowsInserted(const QModelIndex& parent, int start, int end)
295 {
296 TreeViewTouch::rowsInserted(parent, start, end);
297
298 // ensure that newly inserted network nodes are expanded per default
299 if (parent.data(NetworkModel::ItemTypeRole) != NetworkModel::NetworkItemType)
300 return;
301
302 setExpandedState(parent);
303 }
304
on_layoutChanged()305 void BufferView::on_layoutChanged()
306 {
307 int numNets = model()->rowCount(QModelIndex());
308 for (int row = 0; row < numNets; row++) {
309 QModelIndex networkIdx = model()->index(row, 0, QModelIndex());
310 setExpandedState(networkIdx);
311 }
312 }
313
on_configChanged()314 void BufferView::on_configChanged()
315 {
316 Q_ASSERT(model());
317
318 // Expand/collapse as needed
319 setExpandedState();
320
321 if (config()) {
322 // update selection to current one
323 Client::bufferModel()->synchronizeView(this);
324 }
325 }
326
setExpandedState()327 void BufferView::setExpandedState()
328 {
329 // Expand all active networks, collapse inactive ones... unless manually changed
330 QModelIndex networkIdx;
331 NetworkId networkId;
332 for (int row = 0; row < model()->rowCount(); row++) {
333 networkIdx = model()->index(row, 0);
334 if (model()->rowCount(networkIdx) == 0)
335 continue;
336
337 networkId = model()->data(networkIdx, NetworkModel::NetworkIdRole).value<NetworkId>();
338 if (!networkId.isValid())
339 continue;
340
341 setExpandedState(networkIdx);
342 }
343 }
344
storeExpandedState(const QModelIndex & networkIdx)345 void BufferView::storeExpandedState(const QModelIndex& networkIdx)
346 {
347 NetworkId networkId = model()->data(networkIdx, NetworkModel::NetworkIdRole).value<NetworkId>();
348
349 int oldState = 0;
350 if (isExpanded(networkIdx))
351 oldState |= WasExpanded;
352 if (model()->data(networkIdx, NetworkModel::ItemActiveRole).toBool())
353 oldState |= WasActive;
354
355 _expandedState[networkId] = oldState;
356 }
357
setExpandedState(const QModelIndex & networkIdx)358 void BufferView::setExpandedState(const QModelIndex& networkIdx)
359 {
360 if (model()->data(networkIdx, NetworkModel::ItemTypeRole) != NetworkModel::NetworkItemType)
361 return;
362
363 if (model()->rowCount(networkIdx) == 0)
364 return;
365
366 NetworkId networkId = model()->data(networkIdx, NetworkModel::NetworkIdRole).value<NetworkId>();
367
368 bool networkActive = model()->data(networkIdx, NetworkModel::ItemActiveRole).toBool();
369 bool expandNetwork = networkActive;
370 if (_expandedState.contains(networkId)) {
371 int oldState = _expandedState[networkId];
372 if ((bool)(oldState & WasActive) == networkActive)
373 expandNetwork = (bool)(oldState & WasExpanded);
374 }
375
376 if (expandNetwork != isExpanded(networkIdx)) {
377 update(networkIdx);
378 setExpanded(networkIdx, expandNetwork);
379 }
380 storeExpandedState(networkIdx); // this call is needed to keep track of the isActive state
381 }
382
dataChanged(const QModelIndex & topLeft,const QModelIndex & bottomRight,const QVector<int> & roles)383 void BufferView::dataChanged(const QModelIndex& topLeft, const QModelIndex& bottomRight, const QVector<int>& roles)
384 {
385 TreeViewTouch::dataChanged(topLeft, bottomRight, roles);
386
387 // determine how many items have been changed and if any of them is a networkitem
388 // which just swichted from active to inactive or vice versa
389 if (topLeft.data(NetworkModel::ItemTypeRole) != NetworkModel::NetworkItemType)
390 return;
391
392 for (int i = topLeft.row(); i <= bottomRight.row(); i++) {
393 QModelIndex networkIdx = topLeft.sibling(i, 0);
394 setExpandedState(networkIdx);
395 }
396 }
397
toggleHeader(bool checked)398 void BufferView::toggleHeader(bool checked)
399 {
400 auto* action = qobject_cast<QAction*>(sender());
401 header()->setSectionHidden((action->property("column")).toInt(), !checked);
402 }
403
contextMenuEvent(QContextMenuEvent * event)404 void BufferView::contextMenuEvent(QContextMenuEvent* event)
405 {
406 QModelIndex index = indexAt(event->pos());
407 if (!index.isValid())
408 index = rootIndex();
409
410 QMenu contextMenu(this);
411
412 if (index.isValid()) {
413 addActionsToMenu(&contextMenu, index);
414 }
415
416 addFilterActions(&contextMenu, index);
417
418 if (!contextMenu.actions().isEmpty())
419 contextMenu.exec(QCursor::pos());
420 }
421
addActionsToMenu(QMenu * contextMenu,const QModelIndex & index)422 void BufferView::addActionsToMenu(QMenu* contextMenu, const QModelIndex& index)
423 {
424 QModelIndexList indexList = selectedIndexes();
425 // make sure the item we clicked on is first
426 indexList.removeAll(index);
427 indexList.prepend(index);
428
429 GraphicalUi::contextMenuActionProvider()->addActions(contextMenu, indexList, this, &BufferView::menuActionTriggered, (bool)config());
430 }
431
addFilterActions(QMenu * contextMenu,const QModelIndex & index)432 void BufferView::addFilterActions(QMenu* contextMenu, const QModelIndex& index)
433 {
434 auto* filter = qobject_cast<BufferViewFilter*>(model());
435 if (filter) {
436 QList<QAction*> filterActions = filter->actions(index);
437 if (!filterActions.isEmpty()) {
438 contextMenu->addSeparator();
439 foreach (QAction* action, filterActions) {
440 contextMenu->addAction(action);
441 }
442 }
443 }
444 }
445
menuActionTriggered(QAction * result)446 void BufferView::menuActionTriggered(QAction* result)
447 {
448 ContextMenuActionProvider::ActionType type = (ContextMenuActionProvider::ActionType)result->data().toInt();
449 switch (type) {
450 case ContextMenuActionProvider::HideBufferTemporarily:
451 removeSelectedBuffers();
452 break;
453 case ContextMenuActionProvider::HideBufferPermanently:
454 removeSelectedBuffers(true);
455 break;
456 default:
457 return;
458 }
459 }
460
nextBuffer()461 void BufferView::nextBuffer()
462 {
463 changeBuffer(Forward);
464 }
465
previousBuffer()466 void BufferView::previousBuffer()
467 {
468 changeBuffer(Backward);
469 }
470
changeBuffer(Direction direction)471 void BufferView::changeBuffer(Direction direction)
472 {
473 QModelIndex currentIndex = selectionModel()->currentIndex();
474 QModelIndex resultingIndex;
475
476 QModelIndex lastNetIndex = model()->index(model()->rowCount() - 1, 0, QModelIndex());
477
478 if (currentIndex.parent().isValid()) {
479 // If we are a child node just switch among siblings unless it's the first/last child
480 resultingIndex = currentIndex.sibling(currentIndex.row() + direction, 0);
481
482 if (!resultingIndex.isValid()) {
483 QModelIndex parent = currentIndex.parent();
484 if (direction == Backward)
485 resultingIndex = parent;
486 else
487 resultingIndex = parent.sibling(parent.row() + direction, 0);
488 }
489 }
490 else {
491 // If we have a toplevel node, try and get an adjacent child
492 if (direction == Backward) {
493 QModelIndex newParent = currentIndex.sibling(currentIndex.row() - 1, 0);
494 if (currentIndex.row() == 0)
495 newParent = lastNetIndex;
496 if (model()->hasChildren(newParent)) {
497 // Treat an invalid QAbstractItemModel as an invalid QModelIndex
498 resultingIndex = (newParent.model() ? newParent.model()->index(model()->rowCount(newParent) - 1, 0, newParent) : QModelIndex());
499 }
500 else
501 resultingIndex = newParent;
502 }
503 else {
504 if (model()->hasChildren(currentIndex)) {
505 // Treat an invalid QAbstractItemModel as an invalid QModelIndex
506 resultingIndex = (currentIndex.model() ? currentIndex.model()->index(0, 0, currentIndex) : QModelIndex());
507 }
508 else
509 resultingIndex = currentIndex.sibling(currentIndex.row() + 1, 0);
510 }
511 }
512
513 if (!resultingIndex.isValid()) {
514 if (direction == Forward)
515 resultingIndex = model()->index(0, 0, QModelIndex());
516 else {
517 // Assume model is valid
518 resultingIndex = lastNetIndex.model()->index(model()->rowCount(lastNetIndex) - 1, 0, lastNetIndex);
519 }
520 }
521
522 selectionModel()->setCurrentIndex(resultingIndex, QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);
523 selectionModel()->select(resultingIndex, QItemSelectionModel::ClearAndSelect);
524 }
525
selectFirstBuffer()526 void BufferView::selectFirstBuffer()
527 {
528 int networksCount = model()->rowCount(QModelIndex());
529 if (networksCount == 0) {
530 return;
531 }
532
533 QModelIndex bufferIndex;
534 for (int row = 0; row < networksCount; row++) {
535 QModelIndex networkIndex = model()->index(row, 0, QModelIndex());
536 int childCount = model()->rowCount(networkIndex);
537 if (childCount > 0) {
538 bufferIndex = model()->index(0, 0, networkIndex);
539 break;
540 }
541 }
542
543 if (!bufferIndex.isValid()) {
544 return;
545 }
546
547 selectionModel()->setCurrentIndex(bufferIndex, QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);
548 selectionModel()->select(bufferIndex, QItemSelectionModel::ClearAndSelect);
549 }
550
wheelEvent(QWheelEvent * event)551 void BufferView::wheelEvent(QWheelEvent* event)
552 {
553 if (ItemViewSettings().mouseWheelChangesBuffer() == (bool)(event->modifiers() & Qt::AltModifier))
554 return TreeViewTouch::wheelEvent(event);
555
556 int rowDelta = (event->delta() > 0) ? -1 : 1;
557 changeBuffer((Direction)rowDelta);
558 }
559
hideCurrentBuffer()560 void BufferView::hideCurrentBuffer()
561 {
562 QModelIndex index = selectionModel()->currentIndex();
563 if (index.data(NetworkModel::ItemTypeRole) != NetworkModel::BufferItemType)
564 return;
565
566 BufferId bufferId = index.data(NetworkModel::BufferIdRole).value<BufferId>();
567
568 // The check above means we won't be looking at a network, which should always be the first row, so we can just go backwards.
569 changeBuffer(Backward);
570
571 config()->requestRemoveBuffer(bufferId);
572 }
573
filterTextChanged(const QString & filterString)574 void BufferView::filterTextChanged(const QString& filterString)
575 {
576 auto* filter = qobject_cast<BufferViewFilter*>(model());
577 if (!filter) {
578 return;
579 }
580 filter->setFilterString(filterString);
581 on_configChanged(); // make sure collapsation is correct
582 }
583
changeHighlight(BufferView::Direction direction)584 void BufferView::changeHighlight(BufferView::Direction direction)
585 {
586 // If for some weird reason we get a new delegate
587 auto delegate = qobject_cast<BufferViewDelegate*>(itemDelegate(_currentHighlight));
588 if (delegate) {
589 delegate->currentHighlight = QModelIndex();
590 }
591
592 QModelIndex newIndex = _currentHighlight;
593 if (!newIndex.isValid()) {
594 newIndex = model()->index(0, 0);
595 }
596
597 if (direction == Backward) {
598 newIndex = indexBelow(newIndex);
599 }
600 else {
601 newIndex = indexAbove(newIndex);
602 }
603
604 if (!newIndex.isValid()) {
605 return;
606 }
607
608 _currentHighlight = newIndex;
609
610 delegate = qobject_cast<BufferViewDelegate*>(itemDelegate(_currentHighlight));
611 if (delegate) {
612 delegate->currentHighlight = _currentHighlight;
613 }
614 viewport()->update();
615 }
616
selectHighlighted()617 void BufferView::selectHighlighted()
618 {
619 if (_currentHighlight.isValid()) {
620 selectionModel()->setCurrentIndex(_currentHighlight, QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);
621 selectionModel()->select(_currentHighlight, QItemSelectionModel::ClearAndSelect);
622 }
623 else {
624 selectFirstBuffer();
625 }
626
627 clearHighlight();
628 }
629
clearHighlight()630 void BufferView::clearHighlight()
631 {
632 // If for some weird reason we get a new delegate
633 auto delegate = qobject_cast<BufferViewDelegate*>(itemDelegate(_currentHighlight));
634 if (delegate) {
635 delegate->currentHighlight = QModelIndex();
636 }
637 _currentHighlight = QModelIndex();
638 viewport()->update();
639 }
640
641 // ****************************************
642 // BufferViewDelegate
643 // ****************************************
644 class ColorsChangedEvent : public QEvent
645 {
646 public:
ColorsChangedEvent()647 ColorsChangedEvent()
648 : QEvent(QEvent::User){};
649 };
650
BufferViewDelegate(QObject * parent)651 BufferViewDelegate::BufferViewDelegate(QObject* parent)
652 : QStyledItemDelegate(parent)
653 {}
654
customEvent(QEvent * event)655 void BufferViewDelegate::customEvent(QEvent* event)
656 {
657 if (event->type() != QEvent::User)
658 return;
659
660 event->accept();
661 }
662
editorEvent(QEvent * event,QAbstractItemModel * model,const QStyleOptionViewItem & option,const QModelIndex & index)663 bool BufferViewDelegate::editorEvent(QEvent* event, QAbstractItemModel* model, const QStyleOptionViewItem& option, const QModelIndex& index)
664 {
665 if (event->type() != QEvent::MouseButtonRelease)
666 return QStyledItemDelegate::editorEvent(event, model, option, index);
667
668 if (!(model->flags(index) & Qt::ItemIsUserCheckable))
669 return QStyledItemDelegate::editorEvent(event, model, option, index);
670
671 QVariant value = index.data(Qt::CheckStateRole);
672 if (!value.isValid())
673 return QStyledItemDelegate::editorEvent(event, model, option, index);
674
675 QStyleOptionViewItem viewOpt(option);
676 initStyleOption(&viewOpt, index);
677
678 QRect checkRect = viewOpt.widget->style()->subElementRect(QStyle::SE_ItemViewItemCheckIndicator, &viewOpt, viewOpt.widget);
679 auto* me = static_cast<QMouseEvent*>(event);
680
681 if (me->button() != Qt::LeftButton || !checkRect.contains(me->pos()))
682 return QStyledItemDelegate::editorEvent(event, model, option, index);
683
684 auto state = static_cast<Qt::CheckState>(value.toInt());
685 if (state == Qt::Unchecked)
686 state = Qt::PartiallyChecked;
687 else if (state == Qt::PartiallyChecked)
688 state = Qt::Checked;
689 else
690 state = Qt::Unchecked;
691 model->setData(index, state, Qt::CheckStateRole);
692 return true;
693 }
694
695 // ==============================
696 // BufferView Dock
697 // ==============================
BufferViewDock(BufferViewConfig * config,QWidget * parent)698 BufferViewDock::BufferViewDock(BufferViewConfig* config, QWidget* parent)
699 : QDockWidget(parent)
700 , _childWidget(nullptr)
701 , _widget(new QWidget(parent))
702 , _filterEdit(new QLineEdit(parent))
703 , _active(false)
704 , _title(config->bufferViewName())
705 {
706 setObjectName("BufferViewDock-" + QString::number(config->bufferViewId()));
707 toggleViewAction()->setData(config->bufferViewId());
708 setAllowedAreas(Qt::RightDockWidgetArea | Qt::LeftDockWidgetArea);
709 connect(config, &BufferViewConfig::bufferViewNameSet, this, &BufferViewDock::bufferViewRenamed);
710 connect(config, &BufferViewConfig::configChanged, this, &BufferViewDock::configChanged);
711 updateTitle();
712
713 _widget->setLayout(new QVBoxLayout);
714 _widget->layout()->setSpacing(0);
715 _widget->layout()->setContentsMargins(0, 0, 0, 0);
716
717 // We need to potentially hide it early, so it doesn't flicker
718 _filterEdit->setVisible(config->showSearch());
719 _filterEdit->setFocusPolicy(Qt::ClickFocus);
720 _filterEdit->installEventFilter(this);
721 _filterEdit->setPlaceholderText(tr("Search..."));
722 connect(_filterEdit, &QLineEdit::returnPressed, this, &BufferViewDock::onFilterReturnPressed);
723
724 _widget->layout()->addWidget(_filterEdit);
725 QDockWidget::setWidget(_widget);
726 }
727
setLocked(bool locked)728 void BufferViewDock::setLocked(bool locked)
729 {
730 if (locked) {
731 setFeatures({});
732 }
733 else {
734 setFeatures(QDockWidget::DockWidgetClosable | QDockWidget::DockWidgetMovable | QDockWidget::DockWidgetFloatable);
735 }
736 }
737
updateTitle()738 void BufferViewDock::updateTitle()
739 {
740 QString title = _title;
741 if (isActive())
742 title.prepend(QString::fromUtf8("• "));
743 setWindowTitle(title);
744 }
745
configChanged()746 void BufferViewDock::configChanged()
747 {
748 if (_filterEdit->isVisible() != config()->showSearch()) {
749 _filterEdit->setVisible(config()->showSearch());
750 _filterEdit->clear();
751 }
752 }
753
onFilterReturnPressed()754 void BufferViewDock::onFilterReturnPressed()
755 {
756 if (_oldFocusItem) {
757 _oldFocusItem->setFocus();
758 _oldFocusItem = nullptr;
759 }
760
761 if (!config()->showSearch()) {
762 _filterEdit->setVisible(false);
763 }
764
765 BufferView* view = bufferView();
766 if (!view) {
767 return;
768 }
769
770 if (!_filterEdit->text().isEmpty()) {
771 view->selectHighlighted();
772 _filterEdit->clear();
773 }
774 else {
775 view->clearHighlight();
776 }
777 }
778
setActive(bool active)779 void BufferViewDock::setActive(bool active)
780 {
781 if (active != isActive()) {
782 _active = active;
783 updateTitle();
784 if (active) {
785 raise(); // for tabbed docks
786 }
787 }
788 }
789
eventFilter(QObject * object,QEvent * event)790 bool BufferViewDock::eventFilter(QObject* object, QEvent* event)
791 {
792 if (object != _filterEdit) {
793 return false;
794 }
795
796 if (event->type() == QEvent::FocusOut) {
797 if (!config()->showSearch() && _filterEdit->text().isEmpty()) {
798 _filterEdit->setVisible(false);
799 return true;
800 }
801 }
802 else if (event->type() == QEvent::KeyRelease) {
803 auto keyEvent = static_cast<QKeyEvent*>(event);
804
805 BufferView* view = bufferView();
806 if (!view) {
807 return false;
808 }
809
810 switch (keyEvent->key()) {
811 case Qt::Key_Escape: {
812 _filterEdit->clear();
813
814 if (!_oldFocusItem) {
815 return false;
816 }
817
818 _oldFocusItem->setFocus();
819 _oldFocusItem = nullptr;
820 return true;
821 }
822 case Qt::Key_Down:
823 view->changeHighlight(BufferView::Backward);
824 return true;
825 case Qt::Key_Up:
826 view->changeHighlight(BufferView::Forward);
827 return true;
828 default:
829 break;
830 }
831
832 return false;
833 }
834
835 return false;
836 }
837
bufferViewRenamed(const QString & newName)838 void BufferViewDock::bufferViewRenamed(const QString& newName)
839 {
840 _title = newName;
841 updateTitle();
842 toggleViewAction()->setText(newName);
843 }
844
bufferViewId() const845 int BufferViewDock::bufferViewId() const
846 {
847 BufferView* view = bufferView();
848 if (!view)
849 return 0;
850
851 if (view->config())
852 return view->config()->bufferViewId();
853 else
854 return 0;
855 }
856
config() const857 BufferViewConfig* BufferViewDock::config() const
858 {
859 BufferView* view = bufferView();
860 if (!view)
861 return nullptr;
862 else
863 return view->config();
864 }
865
setWidget(QWidget * newWidget)866 void BufferViewDock::setWidget(QWidget* newWidget)
867 {
868 _widget->layout()->addWidget(newWidget);
869 _childWidget = newWidget;
870
871 connect(_filterEdit, &QLineEdit::textChanged, bufferView(), &BufferView::filterTextChanged);
872 }
873
activateFilter()874 void BufferViewDock::activateFilter()
875 {
876 if (!_filterEdit->isVisible()) {
877 _filterEdit->setVisible(true);
878 }
879
880 _oldFocusItem = qApp->focusWidget();
881
882 _filterEdit->setFocus();
883 }
884
885
paint(QPainter * painter,const QStyleOptionViewItem & option,const QModelIndex & index) const886 void BufferViewDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const
887 {
888 QStyleOptionViewItem newOption = option;
889 if (index == currentHighlight) {
890 newOption.state |= QStyle::State_HasFocus;
891 }
892 QStyledItemDelegate::paint(painter, newOption, index);
893 }
894