src/windows/BrowserWindow.cpp

   1 /*
   2  * Copyright © 2022 Soren Stoutner <soren@stoutner.com>.
   3  *
   4  * This file is part of Privacy Browser PC <https://www.stoutner.com/privacy-browser-pc>.
   5  *
   6  * Privacy Browser PC is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * Privacy Browser PC is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with Privacy Browser PC.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 // Application headers.
  21 #include "BrowserWindow.h"
  22 #include "Settings.h"
  23 #include "ui_SettingsPrivacy.h"
  24 #include "ui_SettingsGeneral.h"
  25 #include "dialogs/DomainSettingsDialog.h"
  26 #include "helpers/SearchEngineHelper.h"
  27 #include "helpers/UserAgentHelper.h"
  28
  29 // KDE Frameworks headers.
  30 #include <KActionCollection>
  31 #include <KToolBar>
  32
  33 // Qt toolkit headers.
  34 #include <QInputDialog>
  35 #include <QStatusBar>
  36
  37 BrowserWindow::BrowserWindow() : KXmlGuiWindow()
  38 {
  39     // Instantiate the main view pointer.
  40     browserViewPointer = new BrowserView(this);
  41
  42     // Set the main view as the central widget.
  43     setCentralWidget(browserViewPointer);
  44
  45     // Get a handle for the action collection.
  46     KActionCollection *actionCollectionPointer = this->actionCollection();
  47
  48     // Add the standard actions.
  49     QAction *backActionPointer = KStandardAction::back(this, SLOT(back()), actionCollectionPointer);
  50     QAction *forwardActionPointer = KStandardAction::forward(this, SLOT(forward()), actionCollectionPointer);
  51     KStandardAction::home(this, SLOT(home()), actionCollectionPointer);
  52     KStandardAction::openNew(this, SLOT(fileNew()), actionCollectionPointer);
  53     KStandardAction::quit(qApp, SLOT(closeAllWindows()), actionCollectionPointer);
  54     KStandardAction::preferences(this, SLOT(settingsConfigure()), actionCollectionPointer);
  55     KStandardAction::redisplay(this, SLOT(refresh()), actionCollectionPointer);
  56
  57     // Add the custom actions.
  58     userAgentPrivacyBrowserActionPointer = actionCollectionPointer->addAction(QStringLiteral("user_agent_privacy_browser"));
  59     userAgentFirefoxLinuxActionPointer = actionCollectionPointer->addAction(QStringLiteral("user_agent_firefox_linux"));
  60     userAgentChromiumLinuxActionPointer = actionCollectionPointer->addAction(QStringLiteral("user_agent_chromium_linux"));
  61     userAgentFirefoxWindowsActionPointer = actionCollectionPointer->addAction(QStringLiteral("user_agent_firefox_windows"));
  62     userAgentChromeWindowsActionPointer = actionCollectionPointer->addAction(QStringLiteral("user_agent_chrome_windows"));
  63     userAgentEdgeWindowsActionPointer = actionCollectionPointer->addAction(QStringLiteral("user_agent_edge_windows"));
  64     userAgentSafariMacosActionPointer = actionCollectionPointer->addAction(QStringLiteral("user_agent_safari_macos"));
  65     userAgentCustomActionPointer = actionCollectionPointer->addAction(QStringLiteral("user_agent_custom"));
  66     zoomFactorActionPointer = actionCollectionPointer->addAction(QStringLiteral("zoom_factor"));
  67     searchEngineMojeekActionPointer = actionCollectionPointer->addAction(QStringLiteral("search_engine_mojeek"));
  68     searchEngineMonoclesActionPointer = actionCollectionPointer->addAction(QStringLiteral("search_engine_monocles"));
  69     searchEngineMetagerActionPointer = actionCollectionPointer->addAction(QStringLiteral("search_engine_metager"));
  70     searchEngineGoogleActionPointer = actionCollectionPointer->addAction(QStringLiteral("search_engine_google"));
  71     searchEngineBingActionPointer = actionCollectionPointer->addAction(QStringLiteral("search_engine_bing"));
  72     searchEngineYahooActionPointer = actionCollectionPointer->addAction(QStringLiteral("search_engine_yahoo"));
  73     searchEngineCustomActionPointer = actionCollectionPointer->addAction(QStringLiteral("search_engine_custom"));
  74     javaScriptActionPointer = actionCollectionPointer->addAction(QStringLiteral("javascript"));
  75     domainSettingsActionPointer = actionCollectionPointer->addAction(QStringLiteral("domain_settings"));
  76
  77     // Create the action groups
  78     QActionGroup *userAgentActionGroupPointer = new QActionGroup(this);
  79     QActionGroup *searchEngineActionGroupPointer = new QActionGroup(this);
  80
  81     // Add the actions to the groups.
  82     userAgentActionGroupPointer->addAction(userAgentPrivacyBrowserActionPointer);
  83     userAgentActionGroupPointer->addAction(userAgentFirefoxLinuxActionPointer);
  84     userAgentActionGroupPointer->addAction(userAgentChromiumLinuxActionPointer);
  85     userAgentActionGroupPointer->addAction(userAgentFirefoxWindowsActionPointer);
  86     userAgentActionGroupPointer->addAction(userAgentChromeWindowsActionPointer);
  87     userAgentActionGroupPointer->addAction(userAgentEdgeWindowsActionPointer);
  88     userAgentActionGroupPointer->addAction(userAgentSafariMacosActionPointer);
  89     userAgentActionGroupPointer->addAction(userAgentCustomActionPointer);
  90     searchEngineActionGroupPointer->addAction(searchEngineMojeekActionPointer);
  91     searchEngineActionGroupPointer->addAction(searchEngineMonoclesActionPointer);
  92     searchEngineActionGroupPointer->addAction(searchEngineMetagerActionPointer);
  93     searchEngineActionGroupPointer->addAction(searchEngineGoogleActionPointer);
  94     searchEngineActionGroupPointer->addAction(searchEngineBingActionPointer);
  95     searchEngineActionGroupPointer->addAction(searchEngineYahooActionPointer);
  96     searchEngineActionGroupPointer->addAction(searchEngineCustomActionPointer);
  97
  98     // Set some actions to be checkable.
  99     userAgentPrivacyBrowserActionPointer->setCheckable(true);
 100     userAgentFirefoxLinuxActionPointer->setCheckable(true);
 101     userAgentChromiumLinuxActionPointer->setCheckable(true);
 102     userAgentFirefoxWindowsActionPointer->setCheckable(true);
 103     userAgentChromeWindowsActionPointer->setCheckable(true);
 104     userAgentEdgeWindowsActionPointer->setCheckable(true);
 105     userAgentSafariMacosActionPointer->setCheckable(true);
 106     userAgentCustomActionPointer->setCheckable(true);
 107     searchEngineMojeekActionPointer->setCheckable(true);
 108     searchEngineMonoclesActionPointer->setCheckable(true);
 109     searchEngineMetagerActionPointer->setCheckable(true);
 110     searchEngineGoogleActionPointer->setCheckable(true);
 111     searchEngineBingActionPointer->setCheckable(true);
 112     searchEngineYahooActionPointer->setCheckable(true);
 113     searchEngineCustomActionPointer->setCheckable(true);
 114
 115     // Set the non-mutable action text.
 116     userAgentPrivacyBrowserActionPointer->setText(UserAgentHelper::PRIVACY_BROWSER_TRANSLATED);
 117     userAgentFirefoxLinuxActionPointer->setText(UserAgentHelper::FIREFOX_LINUX_TRANSLATED);
 118     userAgentChromiumLinuxActionPointer->setText(UserAgentHelper::CHROMIUM_LINUX_TRANSLATED);
 119     userAgentFirefoxWindowsActionPointer->setText(UserAgentHelper::FIREFOX_WINDOWS_TRANSLATED);
 120     userAgentChromeWindowsActionPointer->setText(UserAgentHelper::CHROME_WINDOWS_TRANSLATED);
 121     userAgentEdgeWindowsActionPointer->setText(UserAgentHelper::EDGE_WINDOWS_TRANSLATED);
 122     userAgentSafariMacosActionPointer->setText(UserAgentHelper::SAFARI_MACOS_TRANSLATED);
 123     searchEngineMojeekActionPointer->setText(i18nc("Search engine", "Mojeek"));
 124     searchEngineMonoclesActionPointer->setText(i18nc("Search engine", "Monocles"));
 125     searchEngineMetagerActionPointer->setText(i18nc("Search engine", "MetaGer"));
 126     searchEngineGoogleActionPointer->setText(i18nc("Search engine", "Google"));
 127     searchEngineBingActionPointer->setText(i18nc("Search engine", "Bing"));
 128     searchEngineYahooActionPointer->setText(i18nc("Search engine", "Yahoo"));
 129     javaScriptActionPointer->setText(i18nc("JavaScript button", "JavaScript"));
 130     domainSettingsActionPointer->setText(i18nc("Domain Settings button", "Domain Settings"));
 131
 132     // Set the action icons.
 133     userAgentPrivacyBrowserActionPointer->setIcon(QIcon(":/icons/privacy-mode"));
 134     userAgentFirefoxLinuxActionPointer->setIcon(QIcon::fromTheme(QStringLiteral("firefox-esr")));
 135     userAgentChromiumLinuxActionPointer->setIcon(QIcon::fromTheme(QStringLiteral("chromium")));
 136     userAgentFirefoxWindowsActionPointer->setIcon(QIcon::fromTheme(QStringLiteral("firefox-esr")));
 137     userAgentChromeWindowsActionPointer->setIcon(QIcon::fromTheme(QStringLiteral("chromium")));
 138     userAgentEdgeWindowsActionPointer->setIcon(QIcon::fromTheme(QStringLiteral("user-group-properties")));
 139     userAgentSafariMacosActionPointer->setIcon(QIcon::fromTheme(QStringLiteral("user-group-properties")));
 140     userAgentCustomActionPointer->setIcon(QIcon::fromTheme(QStringLiteral("user-group-properties")));
 141     searchEngineMojeekActionPointer->setIcon(QIcon::fromTheme(QStringLiteral("search")));
 142     searchEngineMonoclesActionPointer->setIcon(QIcon::fromTheme(QStringLiteral("search")));
 143     searchEngineMetagerActionPointer->setIcon(QIcon::fromTheme(QStringLiteral("search")));
 144     searchEngineGoogleActionPointer->setIcon(QIcon::fromTheme(QStringLiteral("im-google")));
 145     searchEngineBingActionPointer->setIcon(QIcon::fromTheme(QStringLiteral("search")));
 146     searchEngineYahooActionPointer->setIcon(QIcon::fromTheme(QStringLiteral("im-yahoo")));
 147     searchEngineCustomActionPointer->setIcon(QIcon::fromTheme(QStringLiteral("search")));
 148     zoomFactorActionPointer->setIcon(QIcon::fromTheme(QStringLiteral("zoom")));
 149     domainSettingsActionPointer->setIcon(QIcon::fromTheme(QStringLiteral("network-server-symbolic")));
 150
 151     // Update the on-the-fly menus.
 152     connect(browserViewPointer, SIGNAL(updateUserAgentActions(QString)), this, SLOT(updateUserAgentActions(QString)));
 153     connect(browserViewPointer, SIGNAL(updateZoomFactorAction(double)), this, SLOT(updateZoomFactorAction(double)));
 154     connect(browserViewPointer, SIGNAL(updateSearchEngineActions(QString)), this, SLOT(updateSearchEngineActions(QString)));
 155
 156     // Apply the on-the-fly settings when selected.
 157     connect(userAgentActionGroupPointer, SIGNAL(triggered(QAction*)), browserViewPointer, SLOT(applyOnTheFlyUserAgent(QAction*)));
 158     connect(searchEngineActionGroupPointer, SIGNAL(triggered(QAction*)), browserViewPointer, SLOT(applyOnTheFlySearchEngine(QAction*)));
 159
 160     // Display dialogs.
 161     connect(zoomFactorActionPointer, SIGNAL(triggered()), this, SLOT(getZoomFactorFromUser()));
 162
 163     // Connect the URL toolbar actions.
 164     connect(javaScriptActionPointer, SIGNAL(triggered()), this, SLOT(toggleJavaScript()));
 165     connect(domainSettingsActionPointer, SIGNAL(triggered()), this, SLOT(openDomainSettings()));
 166
 167     // Update the URL toolbar actions.
 168     connect(browserViewPointer, SIGNAL(updateBackAction(bool)), backActionPointer, SLOT(setEnabled(bool)));
 169     connect(browserViewPointer, SIGNAL(updateForwardAction(bool)), forwardActionPointer, SLOT(setEnabled(bool)));
 170     connect(browserViewPointer, SIGNAL(updateJavaScriptAction(bool)), this, SLOT(updateJavaScriptAction(bool)));
 171
 172     // Setup the GUI based on the browser_ui.rc file.
 173     setupGUI(StandardWindowOption::Default, ("browser_ui.rc"));
 174
 175     // Get a handle for the URL toolbar.
 176     KToolBar *urlToolBarPointer = toolBar(QStringLiteral("url_toolbar"));
 177
 178     // Create a URL line edit.
 179     urlLineEditPointer = new KLineEdit();
 180
 181     // Populate the URL toolbar.
 182     urlToolBarPointer->addWidget(urlLineEditPointer);
 183     urlToolBarPointer->addAction(javaScriptActionPointer);
 184     urlToolBarPointer->addAction(domainSettingsActionPointer);
 185
 186     // Load a new URL from the URL line edit.
 187     connect(urlLineEditPointer, SIGNAL(returnKeyPressed(const QString)), this, SLOT(loadUrlFromLineEdit(const QString)));
 188
 189     // Update the URL line edit on page loads.
 190     connect(browserViewPointer, SIGNAL(updateUrlLineEdit(QString)), this, SLOT(updateUrlLineEdit(QString)));
 191
 192     // Get a handle for the status bar.
 193     QStatusBar *statusBarPointer = statusBar();
 194
 195     // Create a progress bar.
 196     progressBarPointer = new QProgressBar();
 197
 198     // Add the progress bar to to the status bar.
 199     statusBarPointer->addPermanentWidget(progressBarPointer);
 200
 201     // Update the status bar with the URL when a link is hovered.
 202     connect(browserViewPointer, SIGNAL(linkHovered(QString)), statusBarPointer, SLOT(showMessage(QString)));
 203
 204     // Update the progress bar.
 205     connect(browserViewPointer, SIGNAL(showProgressBar(const int)), this, SLOT(showProgressBar(const int)));
 206     connect(browserViewPointer, SIGNAL(hideProgressBar()), progressBarPointer, SLOT(hide()));
 207
 208     // Get the URL line edit palettes.
 209     noDomainSettingsPalette = urlLineEditPointer->palette();
 210     domainSettingsPalette = urlLineEditPointer->palette();
 211
 212     // Modify the domain settings palette.
 213     domainSettingsPalette.setColor(QPalette::Base, QColor("#C8E6C9"));
 214
 215     // Update the applied palette.
 216     connect(browserViewPointer, SIGNAL(updateDomainSettingsIndicator(bool)), this, SLOT(updateDomainSettingsIndicator(bool)));
 217
 218     // Load the initial website.
 219     browserViewPointer->loadInitialWebsite();
 220 }
 221
 222 void BrowserWindow::back() const
 223 {
 224     // Remove the focus from the URL line edit.
 225     urlLineEditPointer->clearFocus();
 226
 227     // Go back.
 228     browserViewPointer->back();
 229 }
 230
 231 void BrowserWindow::fileNew() const
 232 {
 233     // Display a new instance of Privacy Browser.
 234     (new BrowserWindow)->show();
 235 }
 236
 237 void BrowserWindow::forward() const
 238 {
 239     // Remove the focus from the URL line edit.
 240     urlLineEditPointer->clearFocus();
 241
 242     // Go forward.
 243     browserViewPointer->forward();
 244 }
 245
 246 void BrowserWindow::getZoomFactorFromUser()
 247 {
 248     // Create an OK flag.
 249     bool okClicked;
 250
 251     // Display a dialog to get the new zoom factor from the user.  Format the double to display two decimals and have a 0.25 step.
 252     double newZoomFactor = QInputDialog::getDouble(this, i18nc("The on-the-fly zoom factor dialog title", "On-The-Fly Zoom Factor"),
 253                                                    i18nc("The instruction text of the on-the-fly zoom factor dialog", "Enter a zoom factor between 0.25 and 5.00"),
 254                                                    currentZoomFactor, .025, 5.00, 2, &okClicked, Qt::WindowFlags(), 0.25);
 255
 256     // Update the zoom factor if the user clicked OK.
 257     if (okClicked)
 258     {
 259         // Update the current zoom factor.
 260         currentZoomFactor = newZoomFactor;
 261
 262         // Set the new zoom factor.
 263         browserViewPointer->applyOnTheFlyZoomFactor(newZoomFactor);
 264
 265         // Update the on-the-fly action text.
 266         updateZoomFactorAction(newZoomFactor);
 267     }
 268 }
 269
 270 void BrowserWindow::home() const
 271 {
 272     // Remove the focus from the URL line edit.
 273     urlLineEditPointer->clearFocus();
 274
 275     // Go home.
 276     browserViewPointer->home();
 277 }
 278
 279 void BrowserWindow::loadUrlFromLineEdit(const QString &url) const
 280 {
 281     // Remove the focus from the URL line edit.
 282     urlLineEditPointer->clearFocus();
 283
 284     // Load the URL.
 285     browserViewPointer->loadUrlFromLineEdit(url);
 286 }
 287
 288 void BrowserWindow::openDomainSettings() const
 289 {
 290     // Remove the focus from the URL line edit.
 291     urlLineEditPointer->clearFocus();
 292
 293     // Instantiate the domain settings window.
 294     DomainSettingsDialog *domainSettingsDialogPointer = new DomainSettingsDialog();
 295
 296     // Set the dialog window title.
 297     domainSettingsDialogPointer->setWindowTitle(i18nc("The domain settings dialog title", "Domain Settings"));
 298
 299     // Set the modality.
 300     domainSettingsDialogPointer->setWindowModality(Qt::WindowModality::WindowModal);;
 301
 302     // Show the dialog.
 303     domainSettingsDialogPointer->show();
 304
 305     // Reload the tabs when domain settings are updated.
 306     connect(domainSettingsDialogPointer, SIGNAL(domainSettingsUpdated()), browserViewPointer, SLOT(applyDomainSettingsAndReload()));
 307 }
 308
 309 void BrowserWindow::refresh() const
 310 {
 311     // Remove the focus from the URL line edit.
 312     urlLineEditPointer->clearFocus();
 313
 314     // Refresh the web page.
 315     browserViewPointer->refresh();
 316 }
 317
 318 void BrowserWindow::showProgressBar(const int &progress) const
 319 {
 320     // Set the progress bar value.
 321     progressBarPointer->setValue(progress);
 322
 323     // Show the progress bar.
 324     progressBarPointer->show();
 325 }
 326
 327 void BrowserWindow::toggleJavaScript() const
 328 {
 329     // Remove the focus from the URL line edit.
 330     urlLineEditPointer->clearFocus();
 331
 332     // Toggle JavaScript.
 333     browserViewPointer->toggleJavaScript();
 334 }
 335
 336 QSize BrowserWindow::sizeHint() const
 337 {
 338     // Return the default window size.
 339     return QSize(1500, 1200);
 340 }
 341
 342 void BrowserWindow::settingsConfigure()
 343 {
 344     // Check to make sure the dialog box isn't already displayed.
 345     if (KConfigDialog::exists(QStringLiteral("settings")))
 346     {
 347         // Show the existing config dialog if it is hidden.
 348         configDialogPointer->show();
 349
 350         // Raise the existing config dialog if it is below other windows.
 351         configDialogPointer->raise();
 352
 353         // Restore the existing config dialog if it has been minimized.
 354         if (configDialogPointer->isMinimized()) {
 355             configDialogPointer->showNormal();
 356         }
 357
 358         // Activate the existing config dialog, which brings its virtual desktop into focus.
 359         configDialogPointer->activateWindow();
 360     }
 361     else
 362     {
 363         // Create the settings widgets.
 364         QWidget *privacySettingsWidgetPointer = new QWidget;
 365         QWidget *generalSettingsWidgetPointer = new QWidget;
 366
 367         // Instantiate the settings UI.
 368         Ui::PrivacySettings privacySettingsUi;
 369         Ui::GeneralSettings generalSettingsUi;
 370
 371         // Setup the UI to display the settings widgets.
 372         privacySettingsUi.setupUi(privacySettingsWidgetPointer);
 373         generalSettingsUi.setupUi(generalSettingsWidgetPointer);
 374
 375         // Get handles for the widgets.
 376         QComboBox *userAgentComboBoxPointer = privacySettingsUi.kcfg_userAgent;
 377         userAgentLabelPointer = privacySettingsUi.userAgentLabel;
 378         QComboBox *searchEngineComboBoxPointer = generalSettingsUi.kcfg_searchEngine;
 379         searchEngineLabelPointer = generalSettingsUi.searchEngineLabel;
 380
 381         // Populate the combo box labels.
 382         updateUserAgentLabel(userAgentComboBoxPointer->currentText());
 383         updateSearchEngineLabel(searchEngineComboBoxPointer->currentText());
 384
 385         // Update the labels when the combo boxes change.
 386         connect(userAgentComboBoxPointer, SIGNAL(currentTextChanged(const QString)), this, SLOT(updateUserAgentLabel(const QString)));
 387         connect(searchEngineComboBoxPointer, SIGNAL(currentTextChanged(const QString)), this, SLOT(updateSearchEngineLabel(const QString)));
 388
 389         // Instantiate a settings config dialog from the settings.kcfg file.
 390         configDialogPointer = new KConfigDialog(this, QStringLiteral("settings"), Settings::self());
 391
 392         // Add the settings widgets as config dialog pages.
 393         configDialogPointer->addPage(privacySettingsWidgetPointer, i18nc("@title:tab", "Privacy"), QStringLiteral("privacy-browser"));
 394         configDialogPointer->addPage(generalSettingsWidgetPointer, i18nc("@title:tab", "General"), QStringLiteral("breeze-settings"));
 395
 396         // Delete the config dialog when it is closed.
 397         configDialogPointer->setAttribute(Qt::WA_DeleteOnClose);
 398
 399         // Make it so.
 400         configDialogPointer->show();
 401
 402         // TODO.  KConfigDialog does not respect expanding size policies.  <https://redmine.stoutner.com/issues/823>
 403         //configDialogPointer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
 404         //privacySettingsWidgetPointer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
 405         //generalSettingsWidgetPointer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
 406         //configDialogPointer->adjustSize();
 407
 408         // Expand the config dialog.
 409         configDialogPointer->resize(1000, 500);
 410
 411         // Apply the settings when they are updated.
 412         connect(configDialogPointer, SIGNAL(settingsChanged(QString)), browserViewPointer, SLOT(applyApplicationSettings()));
 413         connect(configDialogPointer, SIGNAL(settingsChanged(QString)), browserViewPointer, SLOT(applyDomainSettingsAndReload()));
 414     }
 415 }
 416
 417 void BrowserWindow::updateDomainSettingsIndicator(const bool &status) const
 418 {
 419     // Set the domain palette according to the status.
 420     if (status) urlLineEditPointer->setPalette(domainSettingsPalette);
 421     else urlLineEditPointer->setPalette(noDomainSettingsPalette);
 422 }
 423
 424 void BrowserWindow::updateJavaScriptAction(const bool &isEnabled) const
 425 {
 426     // Set the icon according to the status.
 427     if (isEnabled) javaScriptActionPointer->setIcon(QIcon(":/icons/javascript-warning"));
 428     else javaScriptActionPointer->setIcon(QIcon(":/icons/privacy-mode"));
 429 }
 430
 431 void BrowserWindow::updateSearchEngineActions(const QString &searchEngine) const
 432 {
 433     // Initialize the custom search engine flag.
 434     bool customSearchEngine = false;
 435
 436     if (searchEngine == "Mojeek")  // Mojeek.
 437     {
 438         searchEngineMojeekActionPointer->setChecked(true);
 439     }
 440     else if (searchEngine == "Monocles")  // Monocles.
 441     {
 442         searchEngineMonoclesActionPointer->setChecked(true);
 443     }
 444     else if (searchEngine == "MetaGer")  // MetaGer.
 445     {
 446         searchEngineMetagerActionPointer->setChecked(true);
 447     }
 448     else if (searchEngine == "Google")  // Google.
 449     {
 450         searchEngineGoogleActionPointer->setChecked(true);
 451     }
 452     else if (searchEngine == "Bing")  // Bing.
 453     {
 454         searchEngineBingActionPointer->setChecked(true);
 455     }
 456     else if (searchEngine == "Yahoo")  // Yahoo.
 457     {
 458         searchEngineYahooActionPointer->setChecked(true);
 459     }
 460     else  // Custom search engine.
 461     {
 462         // Check the user agent.
 463         searchEngineCustomActionPointer->setChecked(true);
 464
 465         // Set the custom search engine flag.
 466         customSearchEngine = true;
 467     }
 468
 469     // Format the custom search engine.
 470     if (customSearchEngine)
 471     {
 472         // Enable the custom search engine.
 473         searchEngineCustomActionPointer->setEnabled(true);
 474
 475         // Set the custom search engine text.
 476         searchEngineCustomActionPointer->setText(searchEngine);
 477     }
 478     else
 479     {
 480         // Disable the custom search engine.
 481         searchEngineCustomActionPointer->setEnabled(false);
 482
 483         // Reset the custom search engine text.
 484         searchEngineCustomActionPointer->setText(i18nc("@action", "Custom"));
 485     }
 486 }
 487
 488 void BrowserWindow::updateUserAgentActions(const QString &userAgent) const
 489 {
 490     // Initialize the custom user agent flag.
 491     bool customUserAgent = false;
 492
 493     // Check the indicated on-the-fly user agent.
 494     if (userAgent == UserAgentHelper::PRIVACY_BROWSER_USER_AGENT) userAgentPrivacyBrowserActionPointer->setChecked(true);  // Privacy Browser.
 495     else if (userAgent == UserAgentHelper::FIREFOX_LINUX_USER_AGENT) userAgentFirefoxLinuxActionPointer->setChecked(true);  // Firefox Linux.
 496     else if (userAgent == UserAgentHelper::CHROMIUM_LINUX_USER_AGENT) userAgentChromiumLinuxActionPointer->setChecked(true);  // Chromium Linux.
 497     else if (userAgent == UserAgentHelper::FIREFOX_WINDOWS_USER_AGENT) userAgentFirefoxWindowsActionPointer->setChecked(true);  // Firefox Windows.
 498     else if (userAgent == UserAgentHelper::CHROME_WINDOWS_USER_AGENT) userAgentChromeWindowsActionPointer->setChecked(true);  // Chrome Windows.
 499     else if (userAgent == UserAgentHelper::EDGE_WINDOWS_USER_AGENT) userAgentEdgeWindowsActionPointer->setChecked(true);  // Edge Windows.
 500     else if (userAgent == UserAgentHelper::SAFARI_MACOS_USER_AGENT) userAgentSafariMacosActionPointer->setChecked(true);  // Safara macOS.
 501     else  // Custom user agent.
 502     {
 503         // Check the user agent.
 504         userAgentCustomActionPointer->setChecked(true);
 505
 506         // Set the custom user agent flag.
 507         customUserAgent = true;
 508     }
 509
 510
 511     // Format the custom user agent.
 512     if (customUserAgent)
 513     {
 514         // Enable the custom user agent.
 515         userAgentCustomActionPointer->setEnabled(true);
 516
 517         // Set the custom user agent text.
 518         userAgentCustomActionPointer->setText(userAgent);
 519     }
 520     else
 521     {
 522         // Disable the custom user agent.
 523         userAgentCustomActionPointer->setEnabled(false);
 524
 525         // Reset the custom user agent text.
 526         userAgentCustomActionPointer->setText(i18nc("@action", "Custom"));
 527     }
 528 }
 529
 530 void BrowserWindow::updateZoomFactorAction(const double &zoomFactor)
 531 {
 532     // Set the current zoom factor.
 533     currentZoomFactor = zoomFactor;
 534
 535     // Update the zoom factor action text, formatting the double with 2 decimal places.
 536     zoomFactorActionPointer->setText(ki18nc("@action", "Zoom Factor - %1").subs(zoomFactor, 0, '0', 2).toString());
 537 }
 538
 539 void BrowserWindow::updateSearchEngineLabel(const QString &searchEngineString) const
 540 {
 541     // Update the search engine label.
 542     searchEngineLabelPointer->setText(SearchEngineHelper::getSearchUrl(searchEngineString));
 543 }
 544
 545 void BrowserWindow::updateUrlLineEdit(const QString &newUrl) const
 546 {
 547     // Update the URL line edit if it does not have focus.
 548     if (!urlLineEditPointer->hasFocus())
 549     {
 550         // Update the URL line edit.
 551         urlLineEditPointer->setText(newUrl);
 552     }
 553 }
 554
 555 void BrowserWindow::updateUserAgentLabel(const QString &userAgentDatabaseName) const
 556 {
 557     // Update the user agent label.
 558     userAgentLabelPointer->setText(UserAgentHelper::getUserAgentFromDatabaseName(userAgentDatabaseName));
 559 }