Enable the forward and back mouse buttons.

[PrivacyBrowserPC.git] / src / mainview.cpp

diff --git a/src/mainview.cpp b/src/mainview.cpp
index c437c2c4ac130b31739961ddb65898c99c23e7f5..8749760773e6acdd9540a236855ad761d805a6e2 100644 (file)
--- a/src/mainview.cpp
+++ b/src/mainview.cpp
@@ -1,45 +1,112 @@
 /*
-    SPDX-FileCopyrightText: %{CURRENT_YEAR} %{AUTHOR} <%{EMAIL}>
+ * Copyright © 2022 Soren Stoutner <soren@stoutner.com>.
+ *
+ * This file is part of Privacy Browser PC <https://www.stoutner.com/privacy-browser-pc>.
+ *
+ * Privacy Browser PC is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Privacy Browser PC 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 Privacy Browser PC.  If not, see <http://www.gnu.org/licenses/>.
+ */
 
-    SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
-*/
-
-// application headers
+// Application headers
+#include "browserwindow.h"
 #include "mainview.h"
-
+#include "mouseeventfilter.h"
 #include "settings.h"
-#include "privacybrowserdebug.h"
 
+// KDE Framework headers.
+#include <KLineEdit>
+
+// Qt headers.
+#include <QWebEngineHistory>
+#include <QWebEngineView>
 
-MainView::MainView(QWidget *parent)
-    : QWidget(parent)
+MainView::MainView(QWidget *parent) : QWidget(parent)
 {
-    m_ui.setupUi(this);
-    handleSettingsChanged();
+    // Instantiate the mainview UI.
+    Ui::MainView mainViewUi;
+
+    // Setup the UI.
+    mainViewUi.setupUi(this);
+
+    // Get handles for the views.
+    backButtonPointer = mainViewUi.backButton;
+    forwardButtonPointer = mainViewUi.forwardButton;
+    urlLineEditPointer = mainViewUi.urlLineEdit;
+    webEngineViewPointer = mainViewUi.webEngineView;
+
+    // Get handles for the webpage and history.
+    QWebEnginePage *webEnginePagePointer = webEngineViewPointer->page();
+    webEngineHistoryPointer = webEnginePagePointer->history();
+
+    // Update the webengine view from the URL line edit.
+    connect(urlLineEditPointer, SIGNAL(returnKeyPressed(const QString)), this, SLOT(loadUrl(const QString)));
+
+    // Update the URL line edit form the webengine view.
+    connect(webEngineViewPointer, SIGNAL(loadStarted()), this, SLOT(updateInterface()));
+    connect(webEngineViewPointer, SIGNAL(loadProgress(int)), this, SLOT(updateInterface()));
+    connect(webEngineViewPointer, SIGNAL(loadFinished(bool)), this, SLOT(updateInterface()));
+
+    // Setup the forward and back buttons.
+    connect(backButtonPointer, SIGNAL(clicked()), webEngineViewPointer, SLOT(back()));
+    connect(forwardButtonPointer, SIGNAL(clicked()), webEngineViewPointer, SLOT(forward()));
+
+    // Instantiate the mouse event pointer.
+    MouseEventFilter *mouseEventFilterPointer = new MouseEventFilter(webEngineViewPointer);
+
+    // Install the mouse event filter.
+    qApp->installEventFilter(mouseEventFilterPointer);
+
+    // Listen for hovered link URLs.
+    connect(webEnginePagePointer, SIGNAL(linkHovered(QString)), this, SLOT(pageLinkHovered(QString)));
+
+    // Set the zoom factor.
+    webEngineViewPointer->setZoomFactor(Settings::zoomFactor());
+
+    // Set the focus on the WebEngine view.
+    webEngineViewPointer->setFocus();
+
+    // Load the homepage.  TODO.  Consider sanitizing the homepage input and adding things like protocols if they are missing.
+    webEngineViewPointer->setUrl(Settings::homepage());
 }
 
-MainView::~MainView()
+void MainView::loadUrl(const QString &urlFromUser)
 {
+    // Remove the focus from the URL line edit.
+    urlLineEditPointer->clearFocus();
+
+    // Load the URL, adding standard protocol sections if needed.  TODO.  Replace this with logic that prefers HTTPS.
+    webEngineViewPointer->setUrl(QUrl::fromUserInput(urlFromUser));
 }
 
-void MainView::switchColors()
+void MainView::pageLinkHovered(const QString &linkUrl)
 {
-    // switch the foreground/background colors of the label
-    QColor color = Settings::colorBackground();
-    Settings::setColorBackground(Settings::colorForeground());
-    Settings::setColorForeground(color);
-
-    handleSettingsChanged();
+    // Emit a signal so that the browser window can update the status bar.
+    emit linkHovered(linkUrl);
 }
 
-void MainView::handleSettingsChanged()
+void MainView::updateInterface()
 {
-    qCDebug(PRIVACYBROWSER) << "MainView::handleSettingsChanged()";
-    QPalette palette = m_ui.templateLabel->palette();
-    palette.setColor(QPalette::Window, Settings::colorBackground());
-    palette.setColor(QPalette::WindowText, Settings::colorForeground());
-    m_ui.templateLabel->setPalette(palette);
-
-    // i18n : internationalization
-    m_ui.templateLabel->setText(i18n("This project is %1 days old", Settings::ageInDays()));
+    // Update the URL line edit if it does not have focus.
+    if (!urlLineEditPointer->hasFocus())
+    {
+        // Update the URL line edit.
+        urlLineEditPointer->setUrl(webEngineViewPointer->url().toString());
+    }
+
+    // Update the status of the forward and back buttons.
+    backButtonPointer->setEnabled(webEngineHistoryPointer->canGoBack());
+    forwardButtonPointer->setEnabled(webEngineHistoryPointer->canGoForward());
+
+    // Reapply the zoom factor.  This is a bug in QWebEngineView that resets the zoom with every load.  Hopefully it will be fixed in Qt6.  <https://bugreports.qt.io/browse/QTBUG-51992>
+    webEngineViewPointer->setZoomFactor(Settings::zoomFactor());
 }