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     //refreshActionPointer->setIcon(QIcon::fromTheme(QStringLiteral("view-refresh")));
 134     domainSettingsActionPointer->setIcon(QIcon::fromTheme(QStringLiteral("network-server-symbolic")));
 135
 136     // Update the on-the-fly menus.
 137     connect(browserViewPointer, SIGNAL(userAgentUpdated(QString)), this, SLOT(updateOnTheFlyUserAgent(QString)));
 138     connect(browserViewPointer, SIGNAL(zoomFactorUpdated(double)), this, SLOT(updateOnTheFlyZoomFactor(double)));
 139     connect(browserViewPointer, SIGNAL(searchEngineUpdated(QString)), this, SLOT(updateOnTheFlySearchEngine(QString)));
 140
 141     // Apply the on-the-fly settings when selected.
 142     connect(userAgentActionGroupPointer, SIGNAL(triggered(QAction*)), browserViewPointer, SLOT(applyOnTheFlyUserAgent(QAction*)));
 143     connect(searchEngineActionGroupPointer, SIGNAL(triggered(QAction*)), browserViewPointer, SLOT(applyOnTheFlySearchEngine(QAction*)));
 144
 145     // Display dialogs.
 146     connect(zoomFactorActionPointer, SIGNAL(triggered()), this, SLOT(getZoomFactorFromUser()));
 147
 148     // Connect the URL toolbar actions.
 149     connect(javaScriptActionPointer, SIGNAL(triggered()), this, SLOT(toggleJavaScript()));
 150     connect(domainSettingsActionPointer, SIGNAL(triggered()), this, SLOT(openDomainSettings()));
 151
 152     // Update the URL toolbar actions.
 153     connect(browserViewPointer, SIGNAL(updateBackAction(bool)), backActionPointer, SLOT(setEnabled(bool)));
 154     connect(browserViewPointer, SIGNAL(updateForwardAction(bool)), forwardActionPointer, SLOT(setEnabled(bool)));
 155     connect(browserViewPointer, SIGNAL(updateJavaScriptAction(bool)), this, SLOT(updateJavaScriptAction(bool)));
 156
 157     // Setup the GUI based on the browser_ui.rc file.
 158     setupGUI(StandardWindowOption::Default, ("browser_ui.rc"));
 159
 160     // Get a handle for the URL toolbar.
 161     KToolBar *urlToolBarPointer = toolBar(QStringLiteral("url_toolbar"));
 162
 163     // Create a URL line edit.
 164     urlLineEditPointer = new KLineEdit();
 165
 166     // Populate the URL toolbar.
 167     urlToolBarPointer->addWidget(urlLineEditPointer);
 168     urlToolBarPointer->addAction(javaScriptActionPointer);
 169     urlToolBarPointer->addAction(domainSettingsActionPointer);
 170
 171     // Load a new URL from the URL line edit.
 172     connect(urlLineEditPointer, SIGNAL(returnKeyPressed(const QString)), this, SLOT(loadUrlFromLineEdit(const QString)));
 173
 174     // Update the URL line edit on page loads.
 175     connect(browserViewPointer, SIGNAL(updateUrlLineEdit(QString)), this, SLOT(updateUrlLineEdit(QString)));
 176
 177     // Get a handle for the status bar.
 178     QStatusBar *statusBarPointer = statusBar();
 179
 180     // Update the status bar with the URL when a link is hovered.
 181     connect(browserViewPointer, SIGNAL(linkHovered(QString)), statusBarPointer, SLOT(showMessage(QString)));
 182
 183     // Get the URL line edit palettes.
 184     noDomainSettingsPalette = urlLineEditPointer->palette();
 185     domainSettingsPalette = urlLineEditPointer->palette();
 186
 187     // Modify the domain settings palette.
 188     domainSettingsPalette.setColor(QPalette::Base, QColor("#C8E6C9"));
 189
 190     // Update the applied palette.
 191     connect(browserViewPointer, SIGNAL(updateDomainSettingsIndicator(bool)), this, SLOT(updateDomainSettingsIndicator(bool)));
 192
 193     // Load the initial website.
 194     browserViewPointer->loadInitialWebsite();
 195 }
 196
 197 void BrowserWindow::back() const
 198 {
 199     // Remove the focus from the URL line edit.
 200     urlLineEditPointer->clearFocus();
 201
 202     // Go back.
 203     browserViewPointer->back();
 204 }
 205
 206 void BrowserWindow::fileNew() const
 207 {
 208     // Display a new instance of Privacy Browser.
 209     (new BrowserWindow)->show();
 210 }
 211
 212 void BrowserWindow::forward() const
 213 {
 214     // Remove the focus from the URL line edit.
 215     urlLineEditPointer->clearFocus();
 216
 217     // Go forward.
 218     browserViewPointer->forward();
 219 }
 220
 221 void BrowserWindow::getZoomFactorFromUser()
 222 {
 223     // Create an OK flag.
 224     bool okClicked;
 225
 226     // 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.
 227     double newZoomFactor = QInputDialog::getDouble(this, i18nc("The on-the-fly zoom factor dialog title", "On-The-Fly Zoom Factor"),
 228                                                    i18nc("The instruction text of the on-the-fly zoom factor dialog", "Enter a zoom factor between 0.25 and 5.00"),
 229                                                    currentZoomFactor, .025, 5.00, 2, &okClicked, Qt::WindowFlags(), 0.25);
 230
 231     // Update the zoom factor if the user clicked OK.
 232     if (okClicked)
 233     {
 234         // Update the current zoom factor.
 235         currentZoomFactor = newZoomFactor;
 236
 237         // Set the new zoom factor.
 238         browserViewPointer->applyOnTheFlyZoomFactor(newZoomFactor);
 239
 240         // Update the on-the-fly action text.
 241         updateOnTheFlyZoomFactor(newZoomFactor);
 242     }
 243 }
 244
 245 void BrowserWindow::home() const
 246 {
 247     // Remove the focus from the URL line edit.
 248     urlLineEditPointer->clearFocus();
 249
 250     // Go home.
 251     browserViewPointer->home();
 252 }
 253
 254 void BrowserWindow::loadUrlFromLineEdit(const QString &url) const
 255 {
 256     // Remove the focus from the URL line edit.
 257     urlLineEditPointer->clearFocus();
 258
 259     // Load the URL.
 260     browserViewPointer->loadUrlFromLineEdit(url);
 261 }
 262
 263 void BrowserWindow::openDomainSettings() const
 264 {
 265     // Remove the focus from the URL line edit.
 266     urlLineEditPointer->clearFocus();
 267
 268     // Instantiate the domain settings window.
 269     DomainSettingsDialog *domainSettingsDialogPointer = new DomainSettingsDialog();
 270
 271     // Set the dialog window title.
 272     domainSettingsDialogPointer->setWindowTitle(i18nc("The domain settings dialog title", "Domain Settings"));
 273
 274     // Set the modality.
 275     domainSettingsDialogPointer->setWindowModality(Qt::WindowModality::WindowModal);;
 276
 277     // Show the dialog.
 278     domainSettingsDialogPointer->show();
 279
 280     // Reload the tabs when domain settings are updated.
 281     connect(domainSettingsDialogPointer, SIGNAL(domainSettingsUpdated()), browserViewPointer, SLOT(applyDomainSettingsAndReload()));
 282 }
 283
 284 void BrowserWindow::refresh() const
 285 {
 286     // Remove the focus from the URL line edit.
 287     urlLineEditPointer->clearFocus();
 288
 289     // Refresh the web page.
 290     browserViewPointer->refresh();
 291 }
 292
 293 void BrowserWindow::toggleJavaScript() const
 294 {
 295     // Remove the focus from the URL line edit.
 296     urlLineEditPointer->clearFocus();
 297
 298     // Toggle JavaScript.
 299     browserViewPointer->toggleJavaScript();
 300 }
 301
 302 QSize BrowserWindow::sizeHint() const
 303 {
 304     // Return the default window size.
 305     return QSize(1500, 1200);
 306 }
 307
 308 void BrowserWindow::settingsConfigure()
 309 {
 310     // Check to make sure the dialog box isn't already displayed.
 311     if (KConfigDialog::exists(QStringLiteral("settings")))
 312     {
 313         // Show the existing config dialog if it is hidden.
 314         configDialogPointer->show();
 315
 316         // Raise the existing config dialog if it is below other windows.
 317         configDialogPointer->raise();
 318
 319         // Restore the existing config dialog if it has been minimized.
 320         if (configDialogPointer->isMinimized()) {
 321             configDialogPointer->showNormal();
 322         }
 323
 324         // Activate the existing config dialog, which brings its virtual desktop into focus.
 325         configDialogPointer->activateWindow();
 326     }
 327     else
 328     {
 329         // Create the settings widgets.
 330         QWidget *privacySettingsWidgetPointer = new QWidget;
 331         QWidget *generalSettingsWidgetPointer = new QWidget;
 332
 333         // Instantiate the settings UI.
 334         Ui::PrivacySettings privacySettingsUi;
 335         Ui::GeneralSettings generalSettingsUi;
 336
 337         // Setup the UI to display the settings widgets.
 338         privacySettingsUi.setupUi(privacySettingsWidgetPointer);
 339         generalSettingsUi.setupUi(generalSettingsWidgetPointer);
 340
 341         // Get handles for the widgets.
 342         QComboBox *userAgentComboBoxPointer = privacySettingsUi.kcfg_userAgent;
 343         userAgentLabelPointer = privacySettingsUi.userAgentLabel;
 344         QComboBox *searchEngineComboBoxPointer = generalSettingsUi.kcfg_searchEngine;
 345         searchEngineLabelPointer = generalSettingsUi.searchEngineLabel;
 346
 347         // Populate the combo box labels.
 348         updateUserAgentLabel(userAgentComboBoxPointer->currentText());
 349         updateSearchEngineLabel(searchEngineComboBoxPointer->currentText());
 350
 351         // Update the labels when the combo boxes change.
 352         connect(userAgentComboBoxPointer, SIGNAL(currentTextChanged(const QString)), this, SLOT(updateUserAgentLabel(const QString)));
 353         connect(searchEngineComboBoxPointer, SIGNAL(currentTextChanged(const QString)), this, SLOT(updateSearchEngineLabel(const QString)));
 354
 355         // Instantiate a settings config dialog from the settings.kcfg file.
 356         configDialogPointer = new KConfigDialog(this, QStringLiteral("settings"), Settings::self());
 357
 358         // Add the settings widgets as config dialog pages.
 359         configDialogPointer->addPage(privacySettingsWidgetPointer, i18nc("@title:tab", "Privacy"), QStringLiteral("privacy-browser"));
 360         configDialogPointer->addPage(generalSettingsWidgetPointer, i18nc("@title:tab", "General"), QStringLiteral("breeze-settings"));
 361
 362         // Delete the config dialog when it is closed.
 363         configDialogPointer->setAttribute(Qt::WA_DeleteOnClose);
 364
 365         // Make it so.
 366         configDialogPointer->show();
 367
 368         // TODO.  KConfigDialog does not respect expanding size policies.  <https://redmine.stoutner.com/issues/823>
 369         //configDialogPointer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
 370         //privacySettingsWidgetPointer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
 371         //generalSettingsWidgetPointer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
 372         //configDialogPointer->adjustSize();
 373
 374         // Expand the config dialog.
 375         configDialogPointer->resize(1000, 500);
 376
 377         // Apply the settings when they are updated.
 378         connect(configDialogPointer, SIGNAL(settingsChanged(QString)), browserViewPointer, SLOT(applyApplicationSettings()));
 379         connect(configDialogPointer, SIGNAL(settingsChanged(QString)), browserViewPointer, SLOT(applyDomainSettingsAndReload()));
 380     }
 381 }
 382
 383 void BrowserWindow::updateDomainSettingsIndicator(const bool &status) const
 384 {
 385     // Set the domain palette according to the status.
 386     if (status) urlLineEditPointer->setPalette(domainSettingsPalette);
 387     else urlLineEditPointer->setPalette(noDomainSettingsPalette);
 388 }
 389
 390 void BrowserWindow::updateJavaScriptAction(const bool &isEnabled) const
 391 {
 392     // Set the icon according to the status.
 393     if (isEnabled) javaScriptActionPointer->setIcon(QIcon(":/icons/javascript-warning"));
 394     else javaScriptActionPointer->setIcon(QIcon(":/icons/privacy-mode"));
 395 }
 396
 397 void BrowserWindow::updateOnTheFlySearchEngine(const QString &searchEngine) const
 398 {
 399     // Initialize the custom search engine flag.
 400     bool customSearchEngine = false;
 401
 402     if (searchEngine == "Mojeek")  // Mojeek.
 403     {
 404         searchEngineMojeekActionPointer->setChecked(true);
 405     }
 406     else if (searchEngine == "Monocles")  // Monocles.
 407     {
 408         searchEngineMonoclesActionPointer->setChecked(true);
 409     }
 410     else if (searchEngine == "MetaGer")  // MetaGer.
 411     {
 412         searchEngineMetagerActionPointer->setChecked(true);
 413     }
 414     else if (searchEngine == "Google")  // Google.
 415     {
 416         searchEngineGoogleActionPointer->setChecked(true);
 417     }
 418     else if (searchEngine == "Bing")  // Bing.
 419     {
 420         searchEngineBingActionPointer->setChecked(true);
 421     }
 422     else if (searchEngine == "Yahoo")  // Yahoo.
 423     {
 424         searchEngineYahooActionPointer->setChecked(true);
 425     }
 426     else  // Custom search engine.
 427     {
 428         // Check the user agent.
 429         searchEngineCustomActionPointer->setChecked(true);
 430
 431         // Set the custom search engine flag.
 432         customSearchEngine = true;
 433     }
 434
 435     // Format the custom search engine.
 436     if (customSearchEngine)
 437     {
 438         // Enable the custom search engine.
 439         searchEngineCustomActionPointer->setEnabled(true);
 440
 441         // Set the custom search engine text.
 442         searchEngineCustomActionPointer->setText(searchEngine);
 443     }
 444     else
 445     {
 446         // Disable the custom search engine.
 447         searchEngineCustomActionPointer->setEnabled(false);
 448
 449         // Reset the custom search engine text.
 450         searchEngineCustomActionPointer->setText(i18nc("@action", "Custom"));
 451     }
 452 }
 453
 454 void BrowserWindow::updateOnTheFlyUserAgent(const QString &userAgent) const
 455 {
 456     // Initialize the custom user agent flag.
 457     bool customUserAgent = false;
 458
 459     // Check the indicated on-the-fly user agent.
 460     if (userAgent == UserAgentHelper::PRIVACY_BROWSER_USER_AGENT) userAgentPrivacyBrowserActionPointer->setChecked(true);  // Privacy Browser.
 461     else if (userAgent == UserAgentHelper::FIREFOX_LINUX_USER_AGENT) userAgentFirefoxLinuxActionPointer->setChecked(true);  // Firefox Linux.
 462     else if (userAgent == UserAgentHelper::CHROMIUM_LINUX_USER_AGENT) userAgentChromiumLinuxActionPointer->setChecked(true);  // Chromium Linux.
 463     else if (userAgent == UserAgentHelper::FIREFOX_WINDOWS_USER_AGENT) userAgentFirefoxWindowsActionPointer->setChecked(true);  // Firefox Windows.
 464     else if (userAgent == UserAgentHelper::CHROME_WINDOWS_USER_AGENT) userAgentChromeWindowsActionPointer->setChecked(true);  // Chrome Windows.
 465     else if (userAgent == UserAgentHelper::EDGE_WINDOWS_USER_AGENT) userAgentEdgeWindowsActionPointer->setChecked(true);  // Edge Windows.
 466     else if (userAgent == UserAgentHelper::SAFARI_MACOS_USER_AGENT) userAgentSafariMacosActionPointer->setChecked(true);  // Safara macOS.
 467     else  // Custom user agent.
 468     {
 469         // Check the user agent.
 470         userAgentCustomActionPointer->setChecked(true);
 471
 472         // Set the custom user agent flag.
 473         customUserAgent = true;
 474     }
 475
 476
 477     // Format the custom user agent.
 478     if (customUserAgent)
 479     {
 480         // Enable the custom user agent.
 481         userAgentCustomActionPointer->setEnabled(true);
 482
 483         // Set the custom user agent text.
 484         userAgentCustomActionPointer->setText(userAgent);
 485     }
 486     else
 487     {
 488         // Disable the custom user agent.
 489         userAgentCustomActionPointer->setEnabled(false);
 490
 491         // Reset the custom user agent text.
 492         userAgentCustomActionPointer->setText(i18nc("@action", "Custom"));
 493     }
 494 }
 495
 496 void BrowserWindow::updateOnTheFlyZoomFactor(const double &zoomFactor)
 497 {
 498     // Set the current zoom factor.
 499     currentZoomFactor = Settings::zoomFactor();
 500
 501     // Update the zoom factor action text, formatting the double with 2 decimal places.
 502     zoomFactorActionPointer->setText(ki18nc("@action", "Zoom Factor - %1").subs(zoomFactor, 0, '0', 2).toString());
 503 }
 504
 505 void BrowserWindow::updateSearchEngineLabel(const QString &searchEngineString) const
 506 {
 507     // Update the search engine label.
 508     searchEngineLabelPointer->setText(SearchEngineHelper::getSearchUrl(searchEngineString));
 509 }
 510
 511 void BrowserWindow::updateUrlLineEdit(const QString &newUrl) const
 512 {
 513     // Update the URL line edit if it does not have focus.
 514     if (!urlLineEditPointer->hasFocus())
 515     {
 516         // Update the URL line edit.
 517         urlLineEditPointer->setText(newUrl);
 518     }
 519 }
 520
 521 void BrowserWindow::updateUserAgentLabel(const QString &userAgentDatabaseName) const
 522 {
 523     // Update the user agent label.
 524     userAgentLabelPointer->setText(UserAgentHelper::getUserAgentFromDatabaseName(userAgentDatabaseName));
 525 }