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     KStandardAction::openNew(this, SLOT(fileNew()), actionCollectionPointer);
  50     KStandardAction::quit(qApp, SLOT(closeAllWindows()), actionCollectionPointer);
  51     KStandardAction::preferences(this, SLOT(settingsConfigure()), actionCollectionPointer);
  52
  53     // Add the custom actions.
  54     userAgentPrivacyBrowserActionPointer = actionCollectionPointer->addAction(QStringLiteral("user_agent_privacy_browser"));
  55     userAgentFirefoxLinuxActionPointer = actionCollectionPointer->addAction(QStringLiteral("user_agent_firefox_linux"));
  56     userAgentChromiumLinuxActionPointer = actionCollectionPointer->addAction(QStringLiteral("user_agent_chromium_linux"));
  57     userAgentFirefoxWindowsActionPointer = actionCollectionPointer->addAction(QStringLiteral("user_agent_firefox_windows"));
  58     userAgentChromeWindowsActionPointer = actionCollectionPointer->addAction(QStringLiteral("user_agent_chrome_windows"));
  59     userAgentEdgeWindowsActionPointer = actionCollectionPointer->addAction(QStringLiteral("user_agent_edge_windows"));
  60     userAgentSafariMacosActionPointer = actionCollectionPointer->addAction(QStringLiteral("user_agent_safari_macos"));
  61     userAgentCustomActionPointer = actionCollectionPointer->addAction(QStringLiteral("user_agent_custom"));
  62     zoomFactorActionPointer = actionCollectionPointer->addAction(QStringLiteral("zoom_factor"));
  63     searchEngineMojeekActionPointer = actionCollectionPointer->addAction(QStringLiteral("search_engine_mojeek"));
  64     searchEngineMonoclesActionPointer = actionCollectionPointer->addAction(QStringLiteral("search_engine_monocles"));
  65     searchEngineMetagerActionPointer = actionCollectionPointer->addAction(QStringLiteral("search_engine_metager"));
  66     searchEngineGoogleActionPointer = actionCollectionPointer->addAction(QStringLiteral("search_engine_google"));
  67     searchEngineBingActionPointer = actionCollectionPointer->addAction(QStringLiteral("search_engine_bing"));
  68     searchEngineYahooActionPointer = actionCollectionPointer->addAction(QStringLiteral("search_engine_yahoo"));
  69     searchEngineCustomActionPointer = actionCollectionPointer->addAction(QStringLiteral("search_engine_custom"));
  70     backActionPointer = actionCollectionPointer->addAction(QStringLiteral("back"));
  71     forwardActionPointer = actionCollectionPointer->addAction(QStringLiteral("forward"));
  72     refreshActionPointer = actionCollectionPointer->addAction(QStringLiteral("refresh"));
  73     homeActionPointer = actionCollectionPointer->addAction(QStringLiteral("home"));
  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     backActionPointer->setText(i18nc("Back button", "Back"));
 130     forwardActionPointer->setText(i18nc("Forward button", "Forward"));
 131     refreshActionPointer->setText(i18nc("Refresh button", "Refresh"));
 132     homeActionPointer->setText(i18nc("Home button", "Home"));
 133     javaScriptActionPointer->setText(i18nc("JavaScript button", "JavaScript"));
 134     domainSettingsActionPointer->setText(i18nc("Domain Settings button", "Domain Settings"));
 135
 136     // Set the action icons.
 137     backActionPointer->setIcon(QIcon::fromTheme(QStringLiteral("arrow-left")));
 138     forwardActionPointer->setIcon(QIcon::fromTheme(QStringLiteral("arrow-right")));
 139     refreshActionPointer->setIcon(QIcon::fromTheme(QStringLiteral("view-refresh")));
 140     homeActionPointer->setIcon(QIcon::fromTheme(QStringLiteral("home")));
 141     domainSettingsActionPointer->setIcon(QIcon::fromTheme(QStringLiteral("network-server-symbolic")));
 142
 143     // Update the on-the-fly menus.
 144     connect(browserViewPointer, SIGNAL(userAgentUpdated(QString)), this, SLOT(updateOnTheFlyUserAgent(QString)));
 145     connect(browserViewPointer, SIGNAL(zoomFactorUpdated(double)), this, SLOT(updateOnTheFlyZoomFactor(double)));
 146     connect(browserViewPointer, SIGNAL(searchEngineUpdated(QString)), this, SLOT(updateOnTheFlySearchEngine(QString)));
 147
 148     // Apply the on-the-fly settings when selected.
 149     connect(userAgentActionGroupPointer, SIGNAL(triggered(QAction*)), browserViewPointer, SLOT(applyOnTheFlyUserAgent(QAction*)));
 150     connect(searchEngineActionGroupPointer, SIGNAL(triggered(QAction*)), browserViewPointer, SLOT(applyOnTheFlySearchEngine(QAction*)));
 151
 152     // Display dialogs.
 153     connect(zoomFactorActionPointer, SIGNAL(triggered()), this, SLOT(getZoomFactorFromUser()));
 154
 155     // Connect the URL toolbar actions.
 156     connect(backActionPointer, SIGNAL(triggered()), this, SLOT(back()));
 157     connect(forwardActionPointer, SIGNAL(triggered()), this, SLOT(forward()));
 158     connect(refreshActionPointer, SIGNAL(triggered()), this, SLOT(refresh()));
 159     connect(homeActionPointer, SIGNAL(triggered()), this, SLOT(home()));
 160     connect(javaScriptActionPointer, SIGNAL(triggered()), this, SLOT(toggleJavaScript()));
 161     connect(domainSettingsActionPointer, SIGNAL(triggered()), this, SLOT(openDomainSettings()));
 162
 163     // Update the URL toolbar actions.
 164     connect(browserViewPointer, SIGNAL(updateBackAction(bool)), backActionPointer, SLOT(setEnabled(bool)));
 165     connect(browserViewPointer, SIGNAL(updateForwardAction(bool)), forwardActionPointer, SLOT(setEnabled(bool)));
 166     connect(browserViewPointer, SIGNAL(updateJavaScriptAction(bool)), this, SLOT(updateJavaScriptAction(bool)));
 167
 168     // Setup the GUI based on the browser_ui.rc file.
 169     setupGUI(StandardWindowOption::Default, ("browser_ui.rc"));
 170
 171     // Get a handle for the URL toolbar.
 172     KToolBar *urlToolBarPointer = toolBar(QStringLiteral("url_toolbar"));
 173
 174     // Create a URL line edit.
 175     urlLineEditPointer = new KLineEdit();
 176
 177     // Populate the URL toolbar.
 178     urlToolBarPointer->addWidget(urlLineEditPointer);
 179     urlToolBarPointer->addAction(javaScriptActionPointer);
 180     urlToolBarPointer->addAction(domainSettingsActionPointer);
 181
 182     // Load a new URL from the URL line edit.
 183     connect(urlLineEditPointer, SIGNAL(returnKeyPressed(const QString)), this, SLOT(loadUrlFromLineEdit(const QString)));
 184
 185     // Update the URL line edit on page loads.
 186     connect(browserViewPointer, SIGNAL(updateUrlLineEdit(QString)), this, SLOT(updateUrlLineEdit(QString)));
 187
 188     // Get a handle for the status bar.
 189     QStatusBar *statusBarPointer = statusBar();
 190
 191     // Update the status bar with the URL when a link is hovered.
 192     connect(browserViewPointer, SIGNAL(linkHovered(QString)), statusBarPointer, SLOT(showMessage(QString)));
 193
 194     // Get the URL line edit palettes.
 195     noDomainSettingsPalette = urlLineEditPointer->palette();
 196     domainSettingsPalette = urlLineEditPointer->palette();
 197
 198     // Modify the domain settings palette.
 199     domainSettingsPalette.setColor(QPalette::Base, QColor("#C8E6C9"));
 200
 201     // Update the applied palette.
 202     connect(browserViewPointer, SIGNAL(updateDomainSettingsIndicator(bool)), this, SLOT(updateDomainSettingsIndicator(bool)));
 203
 204     // Load the initial website.
 205     browserViewPointer->loadInitialWebsite();
 206 }
 207
 208 void BrowserWindow::back() const
 209 {
 210     // Remove the focus from the URL line edit.
 211     urlLineEditPointer->clearFocus();
 212
 213     // Go back.
 214     browserViewPointer->back();
 215 }
 216
 217 void BrowserWindow::fileNew() const
 218 {
 219     // Display a new instance of Privacy Browser.
 220     (new BrowserWindow)->show();
 221 }
 222
 223 void BrowserWindow::forward() const
 224 {
 225     // Remove the focus from the URL line edit.
 226     urlLineEditPointer->clearFocus();
 227
 228     // Go forward.
 229     browserViewPointer->forward();
 230 }
 231
 232 void BrowserWindow::getZoomFactorFromUser()
 233 {
 234     // Create an OK flag.
 235     bool okClicked;
 236
 237     // 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.
 238     double newZoomFactor = QInputDialog::getDouble(this, i18nc("The on-the-fly zoom factor dialog title", "On-The-Fly Zoom Factor"),
 239                                                    i18nc("The instruction text of the on-the-fly zoom factor dialog", "Enter a zoom factor between 0.25 and 5.00"),
 240                                                    currentZoomFactor, .025, 5.00, 2, &okClicked, Qt::WindowFlags(), 0.25);
 241
 242     // Update the zoom factor if the user clicked OK.
 243     if (okClicked)
 244     {
 245         // Update the current zoom factor.
 246         currentZoomFactor = newZoomFactor;
 247
 248         // Set the new zoom factor.
 249         browserViewPointer->applyOnTheFlyZoomFactor(newZoomFactor);
 250
 251         // Update the on-the-fly action text.
 252         updateOnTheFlyZoomFactor(newZoomFactor);
 253     }
 254 }
 255
 256 void BrowserWindow::home() const
 257 {
 258     // Remove the focus from the URL line edit.
 259     urlLineEditPointer->clearFocus();
 260
 261     // Go home.
 262     browserViewPointer->home();
 263 }
 264
 265 void BrowserWindow::loadUrlFromLineEdit(const QString &url) const
 266 {
 267     // Remove the focus from the URL line edit.
 268     urlLineEditPointer->clearFocus();
 269
 270     // Load the URL.
 271     browserViewPointer->loadUrlFromLineEdit(url);
 272 }
 273
 274 void BrowserWindow::openDomainSettings() const
 275 {
 276     // Remove the focus from the URL line edit.
 277     urlLineEditPointer->clearFocus();
 278
 279     // Instantiate the domain settings window.
 280     DomainSettingsDialog *domainSettingsDialogPointer = new DomainSettingsDialog();
 281
 282     // Set the dialog window title.
 283     domainSettingsDialogPointer->setWindowTitle(i18nc("The domain settings dialog title", "Domain Settings"));
 284
 285     // Set the modality.
 286     domainSettingsDialogPointer->setWindowModality(Qt::WindowModality::WindowModal);;
 287
 288     // Show the dialog.
 289     domainSettingsDialogPointer->show();
 290
 291     // Reload the tabs when domain settings are updated.
 292     connect(domainSettingsDialogPointer, SIGNAL(domainSettingsUpdated()), browserViewPointer, SLOT(applyDomainSettingsAndReload()));
 293 }
 294
 295 void BrowserWindow::refresh() const
 296 {
 297     // Remove the focus from the URL line edit.
 298     urlLineEditPointer->clearFocus();
 299
 300     // Refresh the web page.
 301     browserViewPointer->refresh();
 302 }
 303
 304 void BrowserWindow::toggleJavaScript() const
 305 {
 306     // Remove the focus from the URL line edit.
 307     urlLineEditPointer->clearFocus();
 308
 309     // Toggle JavaScript.
 310     browserViewPointer->toggleJavaScript();
 311 }
 312
 313 void BrowserWindow::settingsConfigure()
 314 {
 315     // Check to make sure the dialog box isn't already displayed.
 316     if (KConfigDialog::exists(QStringLiteral("settings")))
 317     {
 318         // Show the existing config dialog if it is hidden.
 319         configDialogPointer->show();
 320
 321         // Raise the existing config dialog if it is below other windows.
 322         configDialogPointer->raise();
 323
 324         // Restore the existing config dialog if it has been minimized.
 325         if (configDialogPointer->isMinimized()) {
 326             configDialogPointer->showNormal();
 327         }
 328
 329         // Activate the existing config dialog, which brings its virtual desktop into focus.
 330         configDialogPointer->activateWindow();
 331     }
 332     else
 333     {
 334         // Create the settings widgets.
 335         QWidget *privacySettingsWidgetPointer = new QWidget;
 336         QWidget *generalSettingsWidgetPointer = new QWidget;
 337
 338         // Instantiate the settings UI.
 339         Ui::PrivacySettings privacySettingsUi;
 340         Ui::GeneralSettings generalSettingsUi;
 341
 342         // Setup the UI to display the settings widgets.
 343         privacySettingsUi.setupUi(privacySettingsWidgetPointer);
 344         generalSettingsUi.setupUi(generalSettingsWidgetPointer);
 345
 346         // Get handles for the widgets.
 347         QComboBox *userAgentComboBoxPointer = privacySettingsUi.kcfg_userAgent;
 348         userAgentLabelPointer = privacySettingsUi.userAgentLabel;
 349         QComboBox *searchEngineComboBoxPointer = generalSettingsUi.kcfg_searchEngine;
 350         searchEngineLabelPointer = generalSettingsUi.searchEngineLabel;
 351
 352         // Populate the combo box labels.
 353         updateUserAgentLabel(userAgentComboBoxPointer->currentText());
 354         updateSearchEngineLabel(searchEngineComboBoxPointer->currentText());
 355
 356         // Update the labels when the combo boxes change.
 357         connect(userAgentComboBoxPointer, SIGNAL(currentTextChanged(const QString)), this, SLOT(updateUserAgentLabel(const QString)));
 358         connect(searchEngineComboBoxPointer, SIGNAL(currentTextChanged(const QString)), this, SLOT(updateSearchEngineLabel(const QString)));
 359
 360         // Instantiate a settings config dialog from the settings.kcfg file.
 361         configDialogPointer = new KConfigDialog(this, QStringLiteral("settings"), Settings::self());
 362
 363         // Add the settings widgets as config dialog pages.
 364         configDialogPointer->addPage(privacySettingsWidgetPointer, i18nc("@title:tab", "Privacy"), QStringLiteral("privacy-browser"));
 365         configDialogPointer->addPage(generalSettingsWidgetPointer, i18nc("@title:tab", "General"), QStringLiteral("breeze-settings"));
 366
 367         // Delete the config dialog when it is closed.
 368         configDialogPointer->setAttribute(Qt::WA_DeleteOnClose);
 369
 370         // Make it so.
 371         configDialogPointer->show();
 372
 373         // TODO.  KConfigDialog does not respect expanding size policies.  <https://redmine.stoutner.com/issues/823>
 374         //configDialogPointer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
 375         //privacySettingsWidgetPointer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
 376         //generalSettingsWidgetPointer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
 377         //configDialogPointer->adjustSize();
 378
 379         // Expand the config dialog.
 380         configDialogPointer->resize(1000, 500);
 381
 382         // Apply the settings when they are updated.
 383         connect(configDialogPointer, SIGNAL(settingsChanged(QString)), browserViewPointer, SLOT(applyApplicationSettings()));
 384         connect(configDialogPointer, SIGNAL(settingsChanged(QString)), browserViewPointer, SLOT(applyDomainSettingsAndReload()));
 385     }
 386 }
 387
 388 void BrowserWindow::updateDomainSettingsIndicator(const bool &status) const
 389 {
 390     // Set the domain palette according to the status.
 391     if (status) urlLineEditPointer->setPalette(domainSettingsPalette);
 392     else urlLineEditPointer->setPalette(noDomainSettingsPalette);
 393 }
 394
 395 void BrowserWindow::updateJavaScriptAction(const bool &isEnabled) const
 396 {
 397     // Set the icon according to the status.
 398     if (isEnabled) javaScriptActionPointer->setIcon(QIcon(":/icons/javascript-warning"));
 399     else javaScriptActionPointer->setIcon(QIcon(":/icons/privacy-mode"));
 400 }
 401
 402 void BrowserWindow::updateOnTheFlySearchEngine(const QString &searchEngine) const
 403 {
 404     // Initialize the custom search engine flag.
 405     bool customSearchEngine = false;
 406
 407     if (searchEngine == "Mojeek")  // Mojeek.
 408     {
 409         searchEngineMojeekActionPointer->setChecked(true);
 410     }
 411     else if (searchEngine == "Monocles")  // Monocles.
 412     {
 413         searchEngineMonoclesActionPointer->setChecked(true);
 414     }
 415     else if (searchEngine == "MetaGer")  // MetaGer.
 416     {
 417         searchEngineMetagerActionPointer->setChecked(true);
 418     }
 419     else if (searchEngine == "Google")  // Google.
 420     {
 421         searchEngineGoogleActionPointer->setChecked(true);
 422     }
 423     else if (searchEngine == "Bing")  // Bing.
 424     {
 425         searchEngineBingActionPointer->setChecked(true);
 426     }
 427     else if (searchEngine == "Yahoo")  // Yahoo.
 428     {
 429         searchEngineYahooActionPointer->setChecked(true);
 430     }
 431     else  // Custom search engine.
 432     {
 433         // Check the user agent.
 434         searchEngineCustomActionPointer->setChecked(true);
 435
 436         // Set the custom search engine flag.
 437         customSearchEngine = true;
 438     }
 439
 440     // Format the custom search engine.
 441     if (customSearchEngine)
 442     {
 443         // Enable the custom search engine.
 444         searchEngineCustomActionPointer->setEnabled(true);
 445
 446         // Set the custom search engine text.
 447         searchEngineCustomActionPointer->setText(searchEngine);
 448     }
 449     else
 450     {
 451         // Disable the custom search engine.
 452         searchEngineCustomActionPointer->setEnabled(false);
 453
 454         // Reset the custom search engine text.
 455         searchEngineCustomActionPointer->setText(i18nc("@action", "Custom"));
 456     }
 457 }
 458
 459 void BrowserWindow::updateOnTheFlyUserAgent(const QString &userAgent) const
 460 {
 461     // Initialize the custom user agent flag.
 462     bool customUserAgent = false;
 463
 464     // Check the indicated on-the-fly user agent.
 465     if (userAgent == UserAgentHelper::PRIVACY_BROWSER_USER_AGENT) userAgentPrivacyBrowserActionPointer->setChecked(true);  // Privacy Browser.
 466     else if (userAgent == UserAgentHelper::FIREFOX_LINUX_USER_AGENT) userAgentFirefoxLinuxActionPointer->setChecked(true);  // Firefox Linux.
 467     else if (userAgent == UserAgentHelper::CHROMIUM_LINUX_USER_AGENT) userAgentChromiumLinuxActionPointer->setChecked(true);  // Chromium Linux.
 468     else if (userAgent == UserAgentHelper::FIREFOX_WINDOWS_USER_AGENT) userAgentFirefoxWindowsActionPointer->setChecked(true);  // Firefox Windows.
 469     else if (userAgent == UserAgentHelper::CHROME_WINDOWS_USER_AGENT) userAgentChromeWindowsActionPointer->setChecked(true);  // Chrome Windows.
 470     else if (userAgent == UserAgentHelper::EDGE_WINDOWS_USER_AGENT) userAgentEdgeWindowsActionPointer->setChecked(true);  // Edge Windows.
 471     else if (userAgent == UserAgentHelper::SAFARI_MACOS_USER_AGENT) userAgentSafariMacosActionPointer->setChecked(true);  // Safara macOS.
 472     else  // Custom user agent.
 473     {
 474         // Check the user agent.
 475         userAgentCustomActionPointer->setChecked(true);
 476
 477         // Set the custom user agent flag.
 478         customUserAgent = true;
 479     }
 480
 481
 482     // Format the custom user agent.
 483     if (customUserAgent)
 484     {
 485         // Enable the custom user agent.
 486         userAgentCustomActionPointer->setEnabled(true);
 487
 488         // Set the custom user agent text.
 489         userAgentCustomActionPointer->setText(userAgent);
 490     }
 491     else
 492     {
 493         // Disable the custom user agent.
 494         userAgentCustomActionPointer->setEnabled(false);
 495
 496         // Reset the custom user agent text.
 497         userAgentCustomActionPointer->setText(i18nc("@action", "Custom"));
 498     }
 499 }
 500
 501 void BrowserWindow::updateOnTheFlyZoomFactor(const double &zoomFactor)
 502 {
 503     // Set the current zoom factor.
 504     currentZoomFactor = Settings::zoomFactor();
 505
 506     // Update the zoom factor action text, formatting the double with 2 decimal places.
 507     zoomFactorActionPointer->setText(ki18nc("@action", "Zoom Factor - %1").subs(zoomFactor, 0, '0', 2).toString());
 508 }
 509
 510 void BrowserWindow::updateSearchEngineLabel(const QString &searchEngineString) const
 511 {
 512     // Update the search engine label.
 513     searchEngineLabelPointer->setText(SearchEngineHelper::getSearchUrl(searchEngineString));
 514 }
 515
 516 void BrowserWindow::updateUrlLineEdit(const QString &newUrl) const
 517 {
 518     // Update the URL line edit if it does not have focus.
 519     if (!urlLineEditPointer->hasFocus())
 520     {
 521         // Update the URL line edit.
 522         urlLineEditPointer->setText(newUrl);
 523     }
 524 }
 525
 526 void BrowserWindow::updateUserAgentLabel(const QString &userAgentDatabaseName) const
 527 {
 528     // Update the user agent label.
 529     userAgentLabelPointer->setText(UserAgentHelper::getUserAgentFromDatabaseName(userAgentDatabaseName));
 530 }