src/search/dolphinsearchbox.cpp

   1 /*
   2  * SPDX-FileCopyrightText: 2010 Peter Penz <peter.penz19@gmail.com>
   3  *
   4  * SPDX-License-Identifier: GPL-2.0-or-later
   5  */
   6
   7 #include "global.h"
   8 #include "dolphinsearchbox.h"
   9
  10 #include "dolphin_searchsettings.h"
  11 #include "dolphinfacetswidget.h"
  12 #include "dolphinquery.h"
  13 #include "panels/places/placesitemmodel.h"
  14
  15 #include <KLocalizedString>
  16 #include <KNS3/KMoreToolsMenuFactory>
  17 #include <KSeparator>
  18 #include <config-baloo.h>
  19 #ifdef HAVE_BALOO
  20 #include <Baloo/Query>
  21 #include <Baloo/IndexerConfig>
  22 #endif
  23
  24 #include <QButtonGroup>
  25 #include <QDir>
  26 #include <QFontDatabase>
  27 #include <QHBoxLayout>
  28 #include <QIcon>
  29 #include <QKeyEvent>
  30 #include <QLabel>
  31 #include <QLineEdit>
  32 #include <QScrollArea>
  33 #include <QShowEvent>
  34 #include <QTimer>
  35 #include <QToolButton>
  36 #include <QUrlQuery>
  37
  38 DolphinSearchBox::DolphinSearchBox(QWidget* parent) :
  39     QWidget(parent),
  40     m_startedSearching(false),
  41     m_active(true),
  42     m_topLayout(nullptr),
  43     m_searchInput(nullptr),
  44     m_saveSearchAction(nullptr),
  45     m_optionsScrollArea(nullptr),
  46     m_fileNameButton(nullptr),
  47     m_contentButton(nullptr),
  48     m_separator(nullptr),
  49     m_fromHereButton(nullptr),
  50     m_everywhereButton(nullptr),
  51     m_facetsWidget(nullptr),
  52     m_searchPath(),
  53     m_startSearchTimer(nullptr)
  54 {
  55 }
  56
  57 DolphinSearchBox::~DolphinSearchBox()
  58 {
  59     saveSettings();
  60 }
  61
  62 void DolphinSearchBox::setText(const QString& text)
  63 {
  64     m_searchInput->setText(text);
  65 }
  66
  67 QString DolphinSearchBox::text() const
  68 {
  69     return m_searchInput->text();
  70 }
  71
  72 void DolphinSearchBox::setSearchPath(const QUrl& url)
  73 {
  74     if (url == m_searchPath) {
  75         return;
  76     }
  77
  78     const QUrl cleanedUrl = url.adjusted(QUrl::RemoveUserInfo | QUrl::StripTrailingSlash);
  79
  80     if (cleanedUrl.path() == QDir::homePath()) {
  81         m_fromHereButton->setChecked(false);
  82         m_everywhereButton->setChecked(true);
  83         if (!m_searchPath.isEmpty()) {
  84             return;
  85         }
  86     } else {
  87         m_everywhereButton->setChecked(false);
  88         m_fromHereButton->setChecked(true);
  89     }
  90
  91     m_searchPath = url;
  92
  93     QFontMetrics metrics(m_fromHereButton->font());
  94     const int maxWidth = metrics.height() * 8;
  95
  96     QString location = cleanedUrl.fileName();
  97     if (location.isEmpty()) {
  98         location = cleanedUrl.toString(QUrl::PreferLocalFile);
  99     }
 100     const QString elidedLocation = metrics.elidedText(location, Qt::ElideMiddle, maxWidth);
 101     m_fromHereButton->setText(i18nc("action:button", "From Here (%1)", elidedLocation));
 102     m_fromHereButton->setToolTip(i18nc("action:button", "Limit search to '%1' and its subfolders", cleanedUrl.toString(QUrl::PreferLocalFile)));
 103 }
 104
 105 QUrl DolphinSearchBox::searchPath() const
 106 {
 107     return m_everywhereButton->isChecked() ? QUrl::fromLocalFile(QDir::homePath()) : m_searchPath;
 108 }
 109
 110 QUrl DolphinSearchBox::urlForSearching() const
 111 {
 112     QUrl url;
 113
 114     if (isIndexingEnabled()) {
 115         url = balooUrlForSearching();
 116     } else {
 117         url.setScheme(QStringLiteral("filenamesearch"));
 118
 119         QUrlQuery query;
 120         query.addQueryItem(QStringLiteral("search"), m_searchInput->text());
 121         if (m_contentButton->isChecked()) {
 122             query.addQueryItem(QStringLiteral("checkContent"), QStringLiteral("yes"));
 123         }
 124
 125         query.addQueryItem(QStringLiteral("url"), searchPath().url());
 126         query.addQueryItem(QStringLiteral("title"), queryTitle(m_searchInput->text()));
 127
 128         url.setQuery(query);
 129     }
 130
 131     return url;
 132 }
 133
 134 void DolphinSearchBox::fromSearchUrl(const QUrl& url)
 135 {
 136     if (DolphinQuery::supportsScheme(url.scheme())) {
 137         const DolphinQuery query = DolphinQuery::fromSearchUrl(url);
 138         updateFromQuery(query);
 139     } else if (url.scheme() == QLatin1String("filenamesearch")) {
 140         const QUrlQuery query(url);
 141         setText(query.queryItemValue(QStringLiteral("search")));
 142         if (m_searchPath.scheme() != url.scheme()) {
 143             m_searchPath = QUrl();
 144         }
 145         setSearchPath(QUrl::fromUserInput(query.queryItemValue(QStringLiteral("url")), QString(), QUrl::AssumeLocalFile));
 146         m_contentButton->setChecked(query.queryItemValue(QStringLiteral("checkContent")) == QLatin1String("yes"));
 147     } else {
 148         setText(QString());
 149         m_searchPath = QUrl();
 150         setSearchPath(url);
 151     }
 152
 153     updateFacetsVisible();
 154 }
 155
 156 void DolphinSearchBox::selectAll()
 157 {
 158     m_searchInput->selectAll();
 159 }
 160
 161 void DolphinSearchBox::setActive(bool active)
 162 {
 163     if (active != m_active) {
 164         m_active = active;
 165
 166         if (active) {
 167             Q_EMIT activated();
 168         }
 169     }
 170 }
 171
 172 bool DolphinSearchBox::isActive() const
 173 {
 174     return m_active;
 175 }
 176
 177 bool DolphinSearchBox::event(QEvent* event)
 178 {
 179     if (event->type() == QEvent::Polish) {
 180         init();
 181     }
 182     return QWidget::event(event);
 183 }
 184
 185 void DolphinSearchBox::showEvent(QShowEvent* event)
 186 {
 187     if (!event->spontaneous()) {
 188         m_searchInput->setFocus();
 189         m_startedSearching = false;
 190     }
 191 }
 192
 193 void DolphinSearchBox::hideEvent(QHideEvent* event)
 194 {
 195     Q_UNUSED(event)
 196     m_startedSearching = false;
 197     m_startSearchTimer->stop();
 198 }
 199
 200 void DolphinSearchBox::keyReleaseEvent(QKeyEvent* event)
 201 {
 202     QWidget::keyReleaseEvent(event);
 203     if (event->key() == Qt::Key_Escape) {
 204         if (m_searchInput->text().isEmpty()) {
 205             Q_EMIT closeRequest();
 206         } else {
 207             m_searchInput->clear();
 208         }
 209     }
 210     else if (event->key() == Qt::Key_Down) {
 211         Q_EMIT focusViewRequest();
 212     }
 213 }
 214
 215 bool DolphinSearchBox::eventFilter(QObject* obj, QEvent* event)
 216 {
 217     switch (event->type()) {
 218     case QEvent::FocusIn:
 219         // #379135: we get the FocusIn event when we close a tab but we don't want to emit
 220         // the activated() signal before the removeTab() call in DolphinTabWidget::closeTab() returns.
 221         // To avoid this issue, we delay the activation of the search box.
 222         // We also don't want to schedule the activation process if we are already active,
 223         // otherwise we can enter in a loop of FocusIn/FocusOut events with the searchbox of another tab.
 224         if (!isActive()) {
 225             QTimer::singleShot(0, this, [this] {
 226                 setActive(true);
 227                 setFocus();
 228             });
 229         }
 230         break;
 231
 232     default:
 233         break;
 234     }
 235
 236     return QObject::eventFilter(obj, event);
 237 }
 238
 239 void DolphinSearchBox::emitSearchRequest()
 240 {
 241     m_startSearchTimer->stop();
 242     m_startedSearching = true;
 243     m_saveSearchAction->setEnabled(true);
 244     Q_EMIT searchRequest();
 245 }
 246
 247 void DolphinSearchBox::emitCloseRequest()
 248 {
 249     m_startSearchTimer->stop();
 250     m_startedSearching = false;
 251     m_saveSearchAction->setEnabled(false);
 252     Q_EMIT closeRequest();
 253 }
 254
 255 void DolphinSearchBox::slotConfigurationChanged()
 256 {
 257     saveSettings();
 258     if (m_startedSearching) {
 259         emitSearchRequest();
 260     }
 261 }
 262
 263 void DolphinSearchBox::slotSearchTextChanged(const QString& text)
 264 {
 265
 266     if (text.isEmpty()) {
 267         m_startSearchTimer->stop();
 268     } else {
 269         m_startSearchTimer->start();
 270     }
 271     Q_EMIT searchTextChanged(text);
 272 }
 273
 274 void DolphinSearchBox::slotReturnPressed()
 275 {
 276     emitSearchRequest();
 277     Q_EMIT focusViewRequest();
 278 }
 279
 280 void DolphinSearchBox::slotFacetChanged()
 281 {
 282     m_startedSearching = true;
 283     m_startSearchTimer->stop();
 284     Q_EMIT searchRequest();
 285 }
 286
 287 void DolphinSearchBox::slotSearchSaved()
 288 {
 289     const QUrl searchURL = urlForSearching();
 290     if (searchURL.isValid()) {
 291         PlacesItemModel model;
 292         const QString label = i18n("Search for %1 in %2", text(), searchPath().fileName());
 293         model.createPlacesItem(label,
 294                                searchURL,
 295                                QStringLiteral("folder-saved-search-symbolic"));
 296     }
 297 }
 298
 299 void DolphinSearchBox::initButton(QToolButton* button)
 300 {
 301     button->installEventFilter(this);
 302     button->setAutoExclusive(true);
 303     button->setAutoRaise(true);
 304     button->setCheckable(true);
 305     connect(button, &QToolButton::clicked, this, &DolphinSearchBox::slotConfigurationChanged);
 306 }
 307
 308 void DolphinSearchBox::loadSettings()
 309 {
 310     if (SearchSettings::location() == QLatin1String("Everywhere")) {
 311         m_everywhereButton->setChecked(true);
 312     } else {
 313         m_fromHereButton->setChecked(true);
 314     }
 315
 316     if (SearchSettings::what() == QLatin1String("Content")) {
 317         m_contentButton->setChecked(true);
 318     } else {
 319         m_fileNameButton->setChecked(true);
 320     }
 321
 322     updateFacetsVisible();
 323 }
 324
 325 void DolphinSearchBox::saveSettings()
 326 {
 327     SearchSettings::setLocation(m_fromHereButton->isChecked() ? QStringLiteral("FromHere") : QStringLiteral("Everywhere"));
 328     SearchSettings::setWhat(m_fileNameButton->isChecked() ? QStringLiteral("FileName") : QStringLiteral("Content"));
 329     SearchSettings::self()->save();
 330 }
 331
 332 void DolphinSearchBox::init()
 333 {
 334     // Create search box
 335     m_searchInput = new QLineEdit(this);
 336     m_searchInput->setPlaceholderText(i18n("Search..."));
 337     m_searchInput->installEventFilter(this);
 338     m_searchInput->setClearButtonEnabled(true);
 339     m_searchInput->setFont(QFontDatabase::systemFont(QFontDatabase::GeneralFont));
 340     connect(m_searchInput, &QLineEdit::returnPressed,
 341             this, &DolphinSearchBox::slotReturnPressed);
 342     connect(m_searchInput, &QLineEdit::textChanged,
 343             this, &DolphinSearchBox::slotSearchTextChanged);
 344     setFocusProxy(m_searchInput);
 345
 346     // Add "Save search" button inside search box
 347     m_saveSearchAction = new QAction(this);
 348     m_saveSearchAction->setIcon (QIcon::fromTheme(QStringLiteral("document-save-symbolic")));
 349     m_saveSearchAction->setText(i18nc("action:button", "Save this search to quickly access it again in the future"));
 350     m_saveSearchAction->setEnabled(false);
 351     m_searchInput->addAction(m_saveSearchAction, QLineEdit::TrailingPosition);
 352     connect(m_saveSearchAction, &QAction::triggered, this, &DolphinSearchBox::slotSearchSaved);
 353
 354     // Create close button
 355     QToolButton* closeButton = new QToolButton(this);
 356     closeButton->setAutoRaise(true);
 357     closeButton->setIcon(QIcon::fromTheme(QStringLiteral("dialog-close")));
 358     closeButton->setToolTip(i18nc("@info:tooltip", "Quit searching"));
 359     connect(closeButton, &QToolButton::clicked, this, &DolphinSearchBox::emitCloseRequest);
 360
 361     // Apply layout for the search input
 362     QHBoxLayout* searchInputLayout = new QHBoxLayout();
 363     searchInputLayout->setContentsMargins(0, 0, 0, 0);
 364     searchInputLayout->addWidget(m_searchInput);
 365     searchInputLayout->addWidget(closeButton);
 366
 367     // Create "Filename" and "Content" button
 368     m_fileNameButton = new QToolButton(this);
 369     m_fileNameButton->setText(i18nc("action:button", "Filename"));
 370     initButton(m_fileNameButton);
 371
 372     m_contentButton = new QToolButton();
 373     m_contentButton->setText(i18nc("action:button", "Content"));
 374     initButton(m_contentButton);
 375
 376     QButtonGroup* searchWhatGroup = new QButtonGroup(this);
 377     searchWhatGroup->addButton(m_fileNameButton);
 378     searchWhatGroup->addButton(m_contentButton);
 379
 380     m_separator = new KSeparator(Qt::Vertical, this);
 381
 382     // Create "From Here" and "Your files" buttons
 383     m_fromHereButton = new QToolButton(this);
 384     m_fromHereButton->setText(i18nc("action:button", "From Here"));
 385     initButton(m_fromHereButton);
 386
 387     m_everywhereButton = new QToolButton(this);
 388     m_everywhereButton->setText(i18nc("action:button", "Your files"));
 389     m_everywhereButton->setToolTip(i18nc("action:button", "Search in your home directory"));
 390     m_everywhereButton->setIcon(QIcon::fromTheme(QStringLiteral("user-home")));
 391     m_everywhereButton->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 392     initButton(m_everywhereButton);
 393
 394     QButtonGroup* searchLocationGroup = new QButtonGroup(this);
 395     searchLocationGroup->addButton(m_fromHereButton);
 396     searchLocationGroup->addButton(m_everywhereButton);
 397
 398     auto moreSearchToolsButton = new QToolButton(this);
 399     moreSearchToolsButton->setAutoRaise(true);
 400     moreSearchToolsButton->setPopupMode(QToolButton::InstantPopup);
 401     moreSearchToolsButton->setIcon(QIcon::fromTheme("arrow-down-double"));
 402     moreSearchToolsButton->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 403     moreSearchToolsButton->setText(i18n("More Search Tools"));
 404     moreSearchToolsButton->setMenu(new QMenu(this));
 405     connect(moreSearchToolsButton->menu(), &QMenu::aboutToShow, moreSearchToolsButton->menu(), [this, moreSearchToolsButton]()
 406     {
 407         m_menuFactory.reset(new KMoreToolsMenuFactory("dolphin/search-tools"));
 408         moreSearchToolsButton->menu()->clear();
 409         m_menuFactory->fillMenuFromGroupingNames(moreSearchToolsButton->menu(), { "files-find" }, this->m_searchPath);
 410     } );
 411
 412     // Create "Facets" widget
 413     m_facetsWidget = new DolphinFacetsWidget(this);
 414     m_facetsWidget->installEventFilter(this);
 415     m_facetsWidget->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Maximum);
 416     m_facetsWidget->layout()->setSpacing(Dolphin::LAYOUT_SPACING_SMALL);
 417     connect(m_facetsWidget, &DolphinFacetsWidget::facetChanged, this, &DolphinSearchBox::slotFacetChanged);
 418
 419     // Put the options into a QScrollArea. This prevents increasing the view width
 420     // in case that not enough width for the options is available.
 421     QWidget* optionsContainer = new QWidget(this);
 422
 423     // Apply layout for the options
 424     QHBoxLayout* optionsLayout = new QHBoxLayout(optionsContainer);
 425     optionsLayout->setContentsMargins(0, 0, 0, 0);
 426     optionsLayout->setSpacing(Dolphin::LAYOUT_SPACING_SMALL);
 427     optionsLayout->addWidget(m_fileNameButton);
 428     optionsLayout->addWidget(m_contentButton);
 429     optionsLayout->addWidget(m_separator);
 430     optionsLayout->addWidget(m_fromHereButton);
 431     optionsLayout->addWidget(m_everywhereButton);
 432     optionsLayout->addWidget(new KSeparator(Qt::Vertical, this));
 433     optionsLayout->addWidget(moreSearchToolsButton);
 434     optionsLayout->addStretch(1);
 435
 436     m_optionsScrollArea = new QScrollArea(this);
 437     m_optionsScrollArea->setFrameShape(QFrame::NoFrame);
 438     m_optionsScrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
 439     m_optionsScrollArea->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
 440     m_optionsScrollArea->setMaximumHeight(optionsContainer->sizeHint().height());
 441     m_optionsScrollArea->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Fixed);
 442     m_optionsScrollArea->setWidget(optionsContainer);
 443     m_optionsScrollArea->setWidgetResizable(true);
 444
 445     m_topLayout = new QVBoxLayout(this);
 446     m_topLayout->setContentsMargins(0, 0, 0, 0);
 447     m_topLayout->setSpacing(Dolphin::LAYOUT_SPACING_SMALL);
 448     m_topLayout->addLayout(searchInputLayout);
 449     m_topLayout->addWidget(m_optionsScrollArea);
 450     m_topLayout->addWidget(m_facetsWidget);
 451
 452     loadSettings();
 453
 454     // The searching should be started automatically after the user did not change
 455     // the text within one second
 456     m_startSearchTimer = new QTimer(this);
 457     m_startSearchTimer->setSingleShot(true);
 458     m_startSearchTimer->setInterval(1000);
 459     connect(m_startSearchTimer, &QTimer::timeout, this, &DolphinSearchBox::emitSearchRequest);
 460 }
 461
 462 QString DolphinSearchBox::queryTitle(const QString& text) const
 463 {
 464     return i18nc("@title UDS_DISPLAY_NAME for a KIO directory listing. %1 is the query the user entered.",
 465                              "Query Results from '%1'", text);
 466 }
 467
 468 QUrl DolphinSearchBox::balooUrlForSearching() const
 469 {
 470 #ifdef HAVE_BALOO
 471     const QString text = m_searchInput->text();
 472
 473     Baloo::Query query;
 474     query.addType(m_facetsWidget->facetType());
 475
 476     QStringList queryStrings = m_facetsWidget->searchTerms();
 477
 478     if (m_contentButton->isChecked()) {
 479         queryStrings << text;
 480     } else if (!text.isEmpty()) {
 481         queryStrings << QStringLiteral("filename:\"%1\"").arg(text);
 482     }
 483
 484     if (m_fromHereButton->isChecked()) {
 485         query.setIncludeFolder(m_searchPath.toLocalFile());
 486     }
 487
 488     query.setSearchString(queryStrings.join(QLatin1Char(' ')));
 489
 490     return query.toSearchUrl(queryTitle(text));
 491 #else
 492     return QUrl();
 493 #endif
 494 }
 495
 496 void DolphinSearchBox::updateFromQuery(const DolphinQuery& query)
 497 {
 498     // Block all signals to avoid unnecessary "searchRequest" signals
 499     // while we adjust the search text and the facet widget.
 500     blockSignals(true);
 501
 502     const QString customDir = query.includeFolder();
 503     if (!customDir.isEmpty()) {
 504         setSearchPath(QUrl::fromLocalFile(customDir));
 505     } else {
 506         setSearchPath(QUrl::fromLocalFile(QDir::homePath()));
 507     }
 508
 509     // If the input box has focus, do not update to avoid messing with user typing
 510     if (!m_searchInput->hasFocus()) {
 511         setText(query.text());
 512     }
 513
 514     if (query.hasContentSearch()) {
 515         m_contentButton->setChecked(true);
 516     } else if (query.hasFileName())  {
 517         m_fileNameButton->setChecked(true);
 518     }
 519
 520     m_facetsWidget->resetSearchTerms();
 521     m_facetsWidget->setFacetType(query.type());
 522     const QStringList searchTerms = query.searchTerms();
 523     for (const QString& searchTerm : searchTerms) {
 524         m_facetsWidget->setSearchTerm(searchTerm);
 525     }
 526
 527     m_startSearchTimer->stop();
 528     blockSignals(false);
 529 }
 530
 531 void DolphinSearchBox::updateFacetsVisible()
 532 {
 533     const bool indexingEnabled = isIndexingEnabled();
 534     m_facetsWidget->setEnabled(indexingEnabled);
 535     m_facetsWidget->setVisible(indexingEnabled);
 536 }
 537
 538 bool DolphinSearchBox::isIndexingEnabled() const
 539 {
 540 #ifdef HAVE_BALOO
 541     const Baloo::IndexerConfig searchInfo;
 542     return searchInfo.fileIndexingEnabled() && !searchPath().isEmpty() && searchInfo.shouldBeIndexed(searchPath().toLocalFile());
 543 #else
 544     return false;
 545 #endif
 546 }