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qBittorrent/src/gui/search/searchwidget.cpp
Vladimir Golovnev 890630944d
Extract desktop integration stuff into separate class 
PR #17313.
2022-07-09 08:06:22 +03:00

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/*
* Bittorrent Client using Qt and libtorrent.
* Copyright (C) 2020, Will Da Silva <will@willdasilva.xyz>
* Copyright (C) 2015, 2018 Vladimir Golovnev <glassez@yandex.ru>
* Copyright (C) 2006 Christophe Dumez <chris@qbittorrent.org>
*
* 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* In addition, as a special exception, the copyright holders give permission to
* link this program with the OpenSSL project's "OpenSSL" library (or with
* modified versions of it that use the same license as the "OpenSSL" library),
* and distribute the linked executables. You must obey the GNU General Public
* License in all respects for all of the code used other than "OpenSSL". If you
* modify file(s), you may extend this exception to your version of the file(s),
* but you are not obligated to do so. If you do not wish to do so, delete this
* exception statement from your version.
*/
#include "searchwidget.h"
#include <QtGlobal>
#include <utility>
#ifdef Q_OS_WIN
#include <cstdlib>
#endif
#include <QDebug>
#include <QEvent>
#include <QMessageBox>
#include <QMenu>
#include <QMouseEvent>
#include <QObject>
#include <QRegularExpression>
#include <QShortcut>
#include <QVector>
#include "base/global.h"
#include "base/search/searchhandler.h"
#include "base/search/searchpluginmanager.h"
#include "base/utils/foreignapps.h"
#include "gui/desktopintegration.h"
#include "gui/mainwindow.h"
#include "gui/uithememanager.h"
#include "pluginselectdialog.h"
#include "searchjobwidget.h"
#include "ui_searchwidget.h"
#define SEARCHHISTORY_MAXSIZE 50
#define URL_COLUMN 5
namespace
{
QString statusIconName(const SearchJobWidget::Status st)
{
switch (st)
{
case SearchJobWidget::Status::Ongoing:
return u"queued"_qs;
case SearchJobWidget::Status::Finished:
return u"task-complete"_qs;
case SearchJobWidget::Status::Aborted:
return u"task-reject"_qs;
case SearchJobWidget::Status::Error:
return u"dialog-warning"_qs;
case SearchJobWidget::Status::NoResults:
return u"dialog-warning"_qs;
default:
return {};
}
}
}
SearchWidget::SearchWidget(IGUIApplication *app, MainWindow *mainWindow)
: QWidget(mainWindow)
, GUIApplicationComponent(app)
, m_ui {new Ui::SearchWidget()}
, m_mainWindow {mainWindow}
{
m_ui->setupUi(this);
m_ui->tabWidget->tabBar()->installEventFilter(this);
const QString searchPatternHint = u"<html><head/><body><p>"
+ tr("A phrase to search for.") + u"<br>"
+ tr("Spaces in a search term may be protected by double quotes.")
+ u"</p><p>"
+ tr("Example:", "Search phrase example")
+ u"<br>"
+ tr("<b>foo bar</b>: search for <b>foo</b> and <b>bar</b>",
"Search phrase example, illustrates quotes usage, a pair of "
"space delimited words, individual words are highlighted")
+ u"<br>"
+ tr("<b>&quot;foo bar&quot;</b>: search for <b>foo bar</b>",
"Search phrase example, illustrates quotes usage, double quoted"
"pair of space delimited words, the whole pair is highlighted")
+ u"</p></body></html>";
m_ui->lineEditSearchPattern->setToolTip(searchPatternHint);
#ifndef Q_OS_MACOS
// Icons
m_ui->searchButton->setIcon(UIThemeManager::instance()->getIcon(u"edit-find"_qs));
m_ui->pluginsButton->setIcon(UIThemeManager::instance()->getIcon(u"plugins"_qs));
#else
// On macOS the icons overlap the text otherwise
QSize iconSize = m_ui->tabWidget->iconSize();
iconSize.setWidth(iconSize.width() + 16);
m_ui->tabWidget->setIconSize(iconSize);
#endif
connect(m_ui->tabWidget, &QTabWidget::tabCloseRequested, this, &SearchWidget::closeTab);
connect(m_ui->tabWidget, &QTabWidget::currentChanged, this, &SearchWidget::tabChanged);
const auto *searchManager = SearchPluginManager::instance();
const auto onPluginChanged = [this]()
{
fillPluginComboBox();
fillCatCombobox();
selectActivePage();
};
connect(searchManager, &SearchPluginManager::pluginInstalled, this, onPluginChanged);
connect(searchManager, &SearchPluginManager::pluginUninstalled, this, onPluginChanged);
connect(searchManager, &SearchPluginManager::pluginUpdated, this, onPluginChanged);
connect(searchManager, &SearchPluginManager::pluginEnabled, this, onPluginChanged);
// Fill in category combobox
onPluginChanged();
connect(m_ui->lineEditSearchPattern, &LineEdit::returnPressed, m_ui->searchButton, &QPushButton::click);
connect(m_ui->lineEditSearchPattern, &LineEdit::textEdited, this, &SearchWidget::searchTextEdited);
connect(m_ui->selectPlugin, qOverload<int>(&QComboBox::currentIndexChanged)
, this, &SearchWidget::selectMultipleBox);
connect(m_ui->selectPlugin, qOverload<int>(&QComboBox::currentIndexChanged)
, this, &SearchWidget::fillCatCombobox);
const auto focusSearchHotkey = new QShortcut(QKeySequence::Find, this);
connect(focusSearchHotkey, &QShortcut::activated, this, &SearchWidget::toggleFocusBetweenLineEdits);
}
bool SearchWidget::eventFilter(QObject *object, QEvent *event)
{
if (object == m_ui->tabWidget->tabBar())
{
// Close tabs when middle-clicked
if (event->type() != QEvent::MouseButtonRelease)
return false;
const auto mouseEvent = static_cast<QMouseEvent *>(event);
const int tabIndex = m_ui->tabWidget->tabBar()->tabAt(mouseEvent->pos());
if ((mouseEvent->button() == Qt::MiddleButton) && (tabIndex >= 0))
{
closeTab(tabIndex);
return true;
}
if (mouseEvent->button() == Qt::RightButton)
{
QMenu *menu = new QMenu(this);
menu->setAttribute(Qt::WA_DeleteOnClose);
menu->addAction(tr("Close tab"), this, [this, tabIndex]() { closeTab(tabIndex); });
menu->addAction(tr("Close all tabs"), this, &SearchWidget::closeAllTabs);
menu->popup(QCursor::pos());
return true;
}
return false;
}
return QWidget::eventFilter(object, event);
}
void SearchWidget::fillCatCombobox()
{
m_ui->comboCategory->clear();
m_ui->comboCategory->addItem(SearchPluginManager::categoryFullName(u"all"_qs), u"all"_qs);
using QStrPair = std::pair<QString, QString>;
QVector<QStrPair> tmpList;
for (const QString &cat : asConst(SearchPluginManager::instance()->getPluginCategories(selectedPlugin())))
tmpList << std::make_pair(SearchPluginManager::categoryFullName(cat), cat);
std::sort(tmpList.begin(), tmpList.end(), [](const QStrPair &l, const QStrPair &r) { return (QString::localeAwareCompare(l.first, r.first) < 0); });
for (const QStrPair &p : asConst(tmpList))
{
qDebug("Supported category: %s", qUtf8Printable(p.second));
m_ui->comboCategory->addItem(p.first, p.second);
}
if (m_ui->comboCategory->count() > 1)
m_ui->comboCategory->insertSeparator(1);
}
void SearchWidget::fillPluginComboBox()
{
m_ui->selectPlugin->clear();
m_ui->selectPlugin->addItem(tr("Only enabled"), u"enabled"_qs);
m_ui->selectPlugin->addItem(tr("All plugins"), u"all"_qs);
m_ui->selectPlugin->addItem(tr("Select..."), u"multi"_qs);
using QStrPair = std::pair<QString, QString>;
QVector<QStrPair> tmpList;
for (const QString &name : asConst(SearchPluginManager::instance()->enabledPlugins()))
tmpList << std::make_pair(SearchPluginManager::instance()->pluginFullName(name), name);
std::sort(tmpList.begin(), tmpList.end(), [](const QStrPair &l, const QStrPair &r) { return (l.first < r.first); } );
for (const QStrPair &p : asConst(tmpList))
m_ui->selectPlugin->addItem(p.first, p.second);
if (m_ui->selectPlugin->count() > 3)
m_ui->selectPlugin->insertSeparator(3);
}
QString SearchWidget::selectedCategory() const
{
return m_ui->comboCategory->itemData(m_ui->comboCategory->currentIndex()).toString();
}
QString SearchWidget::selectedPlugin() const
{
return m_ui->selectPlugin->itemData(m_ui->selectPlugin->currentIndex()).toString();
}
void SearchWidget::selectActivePage()
{
if (SearchPluginManager::instance()->allPlugins().isEmpty())
{
m_ui->stackedPages->setCurrentWidget(m_ui->emptyPage);
m_ui->lineEditSearchPattern->setEnabled(false);
m_ui->comboCategory->setEnabled(false);
m_ui->selectPlugin->setEnabled(false);
m_ui->searchButton->setEnabled(false);
}
else
{
m_ui->stackedPages->setCurrentWidget(m_ui->searchPage);
m_ui->lineEditSearchPattern->setEnabled(true);
m_ui->comboCategory->setEnabled(true);
m_ui->selectPlugin->setEnabled(true);
m_ui->searchButton->setEnabled(true);
}
}
SearchWidget::~SearchWidget()
{
qDebug("Search destruction");
delete m_ui;
}
void SearchWidget::tabChanged(int index)
{
// when we switch from a tab that is not empty to another that is empty
// the download button doesn't have to be available
m_currentSearchTab = ((index < 0) ? nullptr : m_allTabs.at(m_ui->tabWidget->currentIndex()));
}
void SearchWidget::selectMultipleBox(int index)
{
Q_UNUSED(index);
if (selectedPlugin() == u"multi")
on_pluginsButton_clicked();
}
void SearchWidget::toggleFocusBetweenLineEdits()
{
if (m_ui->lineEditSearchPattern->hasFocus() && m_currentSearchTab)
{
m_currentSearchTab->lineEditSearchResultsFilter()->setFocus();
m_currentSearchTab->lineEditSearchResultsFilter()->selectAll();
}
else
{
m_ui->lineEditSearchPattern->setFocus();
m_ui->lineEditSearchPattern->selectAll();
}
}
void SearchWidget::on_pluginsButton_clicked()
{
auto *dlg = new PluginSelectDialog(SearchPluginManager::instance(), this);
dlg->setAttribute(Qt::WA_DeleteOnClose);
dlg->show();
}
void SearchWidget::searchTextEdited(const QString &)
{
// Enable search button
m_ui->searchButton->setText(tr("Search"));
m_isNewQueryString = true;
}
void SearchWidget::giveFocusToSearchInput()
{
m_ui->lineEditSearchPattern->setFocus();
}
// Function called when we click on search button
void SearchWidget::on_searchButton_clicked()
{
if (!Utils::ForeignApps::pythonInfo().isValid())
{
app()->desktopIntegration()->showNotification(tr("Search Engine"), tr("Please install Python to use the Search Engine."));
return;
}
if (m_activeSearchTab)
{
m_activeSearchTab->cancelSearch();
if (!m_isNewQueryString)
{
m_ui->searchButton->setText(tr("Search"));
return;
}
}
m_isNewQueryString = false;
const QString pattern = m_ui->lineEditSearchPattern->text().trimmed();
// No search pattern entered
if (pattern.isEmpty())
{
QMessageBox::critical(this, tr("Empty search pattern"), tr("Please type a search pattern first"));
return;
}
QStringList plugins;
if (selectedPlugin() == u"all")
plugins = SearchPluginManager::instance()->allPlugins();
else if (selectedPlugin() == u"enabled")
plugins = SearchPluginManager::instance()->enabledPlugins();
else if (selectedPlugin() == u"multi")
plugins = SearchPluginManager::instance()->enabledPlugins();
else
plugins << selectedPlugin();
qDebug("Search with category: %s", qUtf8Printable(selectedCategory()));
// Launch search
auto *searchHandler = SearchPluginManager::instance()->startSearch(pattern, selectedCategory(), plugins);
// Tab Addition
auto *newTab = new SearchJobWidget(searchHandler, this);
m_allTabs.append(newTab);
QString tabName = pattern;
tabName.replace(QRegularExpression(u"&{1}"_qs), u"&&"_qs);
m_ui->tabWidget->addTab(newTab, tabName);
m_ui->tabWidget->setCurrentWidget(newTab);
connect(newTab, &SearchJobWidget::statusChanged, this, [this, newTab]() { tabStatusChanged(newTab); });
m_ui->searchButton->setText(tr("Stop"));
m_activeSearchTab = newTab;
tabStatusChanged(newTab);
}
void SearchWidget::tabStatusChanged(QWidget *tab)
{
const int tabIndex = m_ui->tabWidget->indexOf(tab);
m_ui->tabWidget->setTabToolTip(tabIndex, tab->statusTip());
m_ui->tabWidget->setTabIcon(tabIndex, UIThemeManager::instance()->getIcon(
statusIconName(static_cast<SearchJobWidget *>(tab)->status())));
if ((tab == m_activeSearchTab) && (m_activeSearchTab->status() != SearchJobWidget::Status::Ongoing))
{
Q_ASSERT(m_activeSearchTab->status() != SearchJobWidget::Status::Ongoing);
if (app()->desktopIntegration()->isNotificationsEnabled() && (m_mainWindow->currentTabWidget() != this))
{
if (m_activeSearchTab->status() == SearchJobWidget::Status::Error)
app()->desktopIntegration()->showNotification(tr("Search Engine"), tr("Search has failed"));
else
app()->desktopIntegration()->showNotification(tr("Search Engine"), tr("Search has finished"));
}
m_activeSearchTab = nullptr;
m_ui->searchButton->setText(tr("Search"));
}
}
void SearchWidget::closeTab(int index)
{
SearchJobWidget *tab = m_allTabs.takeAt(index);
if (tab == m_activeSearchTab)
m_ui->searchButton->setText(tr("Search"));
delete tab;
}
void SearchWidget::closeAllTabs()
{
for (int i = (m_allTabs.size() - 1); i >= 0; --i)
closeTab(i);
}
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