File indexing completed on 2024-05-12 04:58:31

 /* ============================================================
 * Falkon - Qt web browser
 * Copyright (C) 2010-2018 David Rosca <nowrep@gmail.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * ============================================================ */
 #include "searchtoolbar.h"
 #include "webview.h"
 #include "webpage.h"
 #include "lineedit.h"
 #include "ui_searchtoolbar.h"
 #include "iconprovider.h"
 
 #include <QKeyEvent>
 #include <QShortcut>
 
 SearchToolBar::SearchToolBar(WebView* view, QWidget* parent)
     : QWidget(parent)
     , ui(new Ui::SearchToolbar)
     , m_view(view)
     , m_findFlags{}
 {
     setAttribute(Qt::WA_DeleteOnClose);
     ui->setupUi(this);
 
     ui->closeButton->setIcon(IconProvider::instance()->standardIcon(QStyle::SP_DialogCloseButton));
     ui->next->setShortcut(QKeySequence(QSL("Ctrl+G")));
     ui->previous->setShortcut(QKeySequence(QSL("Ctrl+Shift+G")));
 
     ui->resultsInfo->hide();
     connect(view->page(), &QWebEnginePage::findTextFinished, this, &SearchToolBar::showSearchResults);
 
     connect(ui->closeButton, SIGNAL(clicked()), this, SLOT(close()));
     connect(ui->lineEdit, &QLineEdit::textEdited, this, &SearchToolBar::findNext);
     connect(ui->next, &QAbstractButton::clicked, this, &SearchToolBar::findNext);
     connect(ui->previous, &QAbstractButton::clicked, this, &SearchToolBar::findPrevious);
     connect(ui->caseSensitive, &QAbstractButton::clicked, this, &SearchToolBar::caseSensitivityChanged);
 
     auto* findNextAction = new QShortcut(QKeySequence(QSL("F3")), this);
     connect(findNextAction, &QShortcut::activated, this, &SearchToolBar::findNext);
 
     auto* findPreviousAction = new QShortcut(QKeySequence(QSL("Shift+F3")), this);
     connect(findPreviousAction, &QShortcut::activated, this, &SearchToolBar::findPrevious);
 
     parent->installEventFilter(this);
 }
 
 void SearchToolBar::showMinimalInPopupWindow()
 {
     // Show only essentials widget + set minimum width
     ui->caseSensitive->hide();
     ui->horizontalLayout->setSpacing(2);
     ui->horizontalLayout->setContentsMargins(2, 6, 2, 6);
     setMinimumWidth(260);
 }
 
 void SearchToolBar::focusSearchLine()
 {
     ui->lineEdit->setFocus();
 }
 
 void SearchToolBar::close()
 {
     hide();
     searchText(QString());
     m_view->setFocus();
     deleteLater();
 }
 
 void SearchToolBar::findNext()
 {
     m_findFlags = {};
     updateFindFlags();
 
     searchText(ui->lineEdit->text());
 }
 
 void SearchToolBar::findPrevious()
 {
     m_findFlags = QWebEnginePage::FindBackward;
     updateFindFlags();
 
     searchText(ui->lineEdit->text());
 }
 
 void SearchToolBar::updateFindFlags()
 {
     if (ui->caseSensitive->isChecked()) {
         m_findFlags = m_findFlags | QWebEnginePage::FindCaseSensitively;
     }
     else {
         m_findFlags = m_findFlags & ~QWebEnginePage::FindCaseSensitively;
     }
 }
 
 void SearchToolBar::caseSensitivityChanged()
 {
     updateFindFlags();
 
     searchText(QString());
     searchText(ui->lineEdit->text());
 }
 
 void SearchToolBar::setText(const QString &text)
 {
     ui->lineEdit->setText(text);
 }
 
 void SearchToolBar::searchText(const QString &text)
 {
     m_searchRequests++;
     QPointer<SearchToolBar> guard = this;
     m_view->findText(text, m_findFlags, [=](QWebEngineFindTextResult result) {
         bool found = result.numberOfMatches() > 0;
         if (!guard) {
             return;
         }
         if (--m_searchRequests != 0) {
             return;
         }
         if (ui->lineEdit->text().isEmpty())
             found = true;
 
         ui->lineEdit->setProperty("notfound", QVariant(!found));
         ui->lineEdit->style()->unpolish(ui->lineEdit);
         ui->lineEdit->style()->polish(ui->lineEdit);
 
         // Clear selection
         m_view->page()->runJavaScript(QSL("window.getSelection().empty();"), WebPage::SafeJsWorld);
     });
 }
 
 void SearchToolBar::showSearchResults(const QWebEngineFindTextResult &result)
 {
     if (result.numberOfMatches() == 0) {
         ui->resultsInfo->hide();
         return;
     }
 
     ui->resultsInfo->setText(tr("%1 of %2").arg(
         QString::number(result.activeMatch()), QString::number(result.numberOfMatches())));
     ui->resultsInfo->show();
 }
 
 bool SearchToolBar::eventFilter(QObject* obj, QEvent* event)
 {
     Q_UNUSED(obj);
 
     if (event->type() == QEvent::KeyPress) {
         auto *ke = static_cast<QKeyEvent*>(event);
         switch (ke->key()) {
         case Qt::Key_Escape:
             close();
             break;
         case Qt::Key_Enter:
         case Qt::Key_Return:
             if (ke->modifiers() & Qt::ShiftModifier) {
                 findPrevious();
             } else {
                 findNext();
             }
             break;
         default:
             break;
         }
     }
 
     return false;
 }
 
 SearchToolBar::~SearchToolBar()
 {
     delete ui;
 }