3 files changed, 250 insertions, 0 deletions
diff --git a/src/widgets/BrowserManager.cpp b/src/widgets/BrowserManager.cpp
new file mode 100644
index 0000000..a2390fc
--- /dev/null
+++ b/src/widgets/BrowserManager.cpp
@@ -0,0 +1,124 @@
+#include <QStackedLayout>
+#include <QWebEngineNewWindowRequest>
+#include <QWebEngineView>
+
+#include "widgets/BrowserManager.hpp"
+
+BrowserManager::BrowserManager(QWebEngineProfile *profile) : QWidget() {
+  setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
+
+  layout = new QStackedLayout(this);
+  layout->setStackingMode(QStackedLayout::StackAll);
+  layout->setContentsMargins(0, 0, 0, 0);
+
+  this->profile = profile;
+
+  createNewWebView(BrowserManager::NewtabURL, true);
+}
+
+QWebEngineView *BrowserManager::createNewWebView(QUrl url, bool focus) {
+  auto webview = new QWebEngineView(profile);
+  webview->setUrl(url);
+  layout->addWidget(webview);
+  webViewList.append(webview);
+
+  connect(webview->page(), &QWebEnginePage::newWindowRequested, this,
+          &BrowserManager::onNewWebViewRequest);
+
+  if (focus)
+    focusWebView(webViewList.length() - 1);
+
+  return webview;
+}
+
+void BrowserManager::onNewWebViewRequest(QWebEngineNewWindowRequest &request) {
+  switch (request.destination()) {
+  case QWebEngineNewWindowRequest::InNewTab:
+    createNewWebView(request.requestedUrl(), true);
+    break;
+  case QWebEngineNewWindowRequest::InNewBackgroundTab:
+    createNewWebView(request.requestedUrl(), false);
+    break;
+  case QWebEngineNewWindowRequest::InNewWindow:
+    // TODO: Impl
+    createNewWebView(request.requestedUrl(), true);
+    break;
+  case QWebEngineNewWindowRequest::InNewDialog:
+    // TODO: Impl
+    createNewWebView(request.requestedUrl(), true);
+    break;
+  }
+}
+
+void BrowserManager::nextWebView() {
+  if (webViewList.isEmpty())
+    return;
+  auto index = currentWebViewIndex() + 1;
+  auto total = webViewList.length();
+  index = index >= total ? index % total : index;
+  focusWebView(index);
+}
+
+void BrowserManager::previousWebView() {
+  if (webViewList.isEmpty())
+    return;
+  auto index = currentWebViewIndex() - 1;
+  auto total = webViewList.length();
+  index = index < 0 ? total + index : index;
+  focusWebView(index);
+}
+
+void BrowserManager::closeCurrentWebView() {
+  closeWebView(currentWebViewIndex());
+}
+
+void BrowserManager::closeWebView(long index) {
+  if (index < 0 || index >= webViewList.length())
+    return;
+
+  auto webview = webViewList.at(index);
+  layout->removeWidget(webview);
+  webViewList.removeAt(index);
+  disconnect(webview->page());
+  webview->deleteLater();
+
+  focusWebView(currentWebViewIndex());
+
+  if (webViewList.isEmpty()) {
+    createNewWebView(BrowserManager::NewtabURL, true);
+  }
+}
+
+std::vector<QUrl> BrowserManager::webViewUrls() {
+  std::vector<QUrl> urls;
+  for (auto &view : webViewList)
+    urls.push_back(view->url());
+  return urls;
+}
+
+u_int32_t BrowserManager::currentWebViewIndex() {
+  return layout->currentIndex();
+}
+u_int32_t BrowserManager::webViewCount() { return webViewList.length(); }
+
+void BrowserManager::focusWebView(long index) {
+  if (webViewList.isEmpty())
+    return;
+
+  index = std::max((long)0, std::min(index, (long)webViewList.length() - 1));
+  layout->setCurrentIndex(index);
+}
+
+QUrl BrowserManager::currentUrl() {
+  if (currentWebViewIndex() >= webViewList.length())
+    return QUrl("about:newtab");
+
+  return webViewList.at(currentWebViewIndex())->url();
+}
+
+void BrowserManager::setCurrentUrl(QUrl url) {
+  if (currentWebViewIndex() >= webViewList.length())
+    return;
+
+  webViewList.at(currentWebViewIndex())->setUrl(url);
+}
diff --git a/src/widgets/CommandInput.cpp b/src/widgets/CommandInput.cpp
new file mode 100644
index 0000000..464065a
--- /dev/null
+++ b/src/widgets/CommandInput.cpp
@@ -0,0 +1,50 @@
+#include <QHBoxLayout>
+#include <QKeyEvent>
+#include <QLineEdit>
+#include <QVBoxLayout>
+#include <QWidget>
+#include <QWindow>
+
+#include "widgets/CommandInput.hpp"
+
+CommandInput::CommandInput(QString defaultInput, QWidget *parentNode)
+    : QWidget(parentNode) {
+  setContentsMargins(0, 0, 0, 0);
+  setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
+  setStyleSheet("background-color: #000; color: #fff; border-radius: 0;");
+
+  auto layout = new QVBoxLayout(this);
+  layout->setContentsMargins(0, 0, 0, 0);
+  input = new QLineEdit(defaultInput, this);
+  input->setFocusPolicy(Qt::StrongFocus);
+  layout->addWidget(input);
+  setFixedHeight(input->sizeHint().height());
+}
+
+void CommandInput::emitSubmit() { emit submitted(getInputCommand()); }
+
+void CommandInput::keyPressEvent(QKeyEvent *event) {
+  auto combo = event->keyCombination();
+  auto ctrlL = combo.key() == Qt::Key_L &&
+               combo.keyboardModifiers().testFlag(Qt::ControlModifier);
+  auto esc = combo.key() == Qt::Key_Escape;
+  auto enter = combo.key() == Qt::Key_Return || combo.key() == Qt::Key_Enter;
+
+  if (esc || ctrlL)
+    emit cancelled();
+  else if (enter)
+    emitSubmit();
+}
+
+void CommandInput::setInputText(QString text) { input->setText(text); }
+
+bool CommandInput::isInputFocussed() { return input->hasFocus(); }
+
+void CommandInput::setInputFocus(bool focussed) {
+  if (focussed)
+    input->setFocus(Qt::PopupFocusReason);
+  else
+    input->clearFocus();
+}
+
+QString CommandInput::getInputCommand() { return input->text(); }
diff --git a/src/widgets/MainWindow.cpp b/src/widgets/MainWindow.cpp
new file mode 100644
index 0000000..e660e52
--- /dev/null
+++ b/src/widgets/MainWindow.cpp
@@ -0,0 +1,76 @@
+#include <QKeyEvent>
+#include <QStackedLayout>
+#include <QVBoxLayout>
+#include <QWebEngineView>
+
+#include "widgets/BrowserManager.hpp"
+#include "widgets/CommandInput.hpp"
+#include "widgets/MainWindow.hpp"
+
+MainWindow::MainWindow() {
+  setStyleSheet("background-color: #000; color: #fff;");
+  setCentralWidget(new QWidget());
+
+  // Root stacked layout
+  auto layout = new QStackedLayout();
+  layout->setContentsMargins(0, 0, 0, 0);
+  layout->setSpacing(0);
+  layout->setStackingMode(QStackedLayout::StackAll);
+  centralWidget()->setLayout(layout);
+
+  // Web engine
+  browserManager = new BrowserManager(new QWebEngineProfile("web-browser"));
+  layout->addWidget(browserManager);
+
+  // Command input
+  commandInput = new CommandInput(browserManager->currentUrl().toString());
+  hideURLInput();
+  commandInput->move(0, 0);
+  connect(commandInput, &CommandInput::submitted, this,
+          &MainWindow::evaluateCommand);
+  connect(commandInput, &CommandInput::cancelled, this,
+          &MainWindow::hideURLInput);
+  layout->addWidget(commandInput);
+}
+
+void MainWindow::hideURLInput() {
+  commandInput->setInputFocus(false);
+  commandInput->setHidden(true);
+}
+
+void MainWindow::showURLInput() {
+  commandInput->setInputText(browserManager->currentUrl().toString());
+  commandInput->raise();
+  commandInput->setHidden(false);
+  commandInput->setInputFocus(true);
+}
+
+void MainWindow::evaluateCommand(QString command) {
+  if (!command.isEmpty())
+    browserManager->setCurrentUrl(command);
+  hideURLInput();
+}
+
+void MainWindow::keyPressEvent(QKeyEvent *event) {
+  auto combo = event->keyCombination();
+  if (combo.key() == Qt::Key_L &&
+      combo.keyboardModifiers().testFlag(Qt::ControlModifier)) {
+    toggleURLInput();
+  } else if (combo.key() == Qt::Key_T &&
+             combo.keyboardModifiers().testFlag(Qt::ControlModifier)) {
+    browserManager->createNewWebView(QUrl("https://duckduckgo.com"), true);
+  } else if (combo.key() == Qt::Key_J &&
+             combo.keyboardModifiers().testFlag(Qt::ControlModifier)) {
+    browserManager->nextWebView();
+  } else if (combo.key() == Qt::Key_K &&
+             combo.keyboardModifiers().testFlag(Qt::ControlModifier)) {
+    browserManager->previousWebView();
+  } else if (combo.key() == Qt::Key_W &&
+             combo.keyboardModifiers().testFlag(Qt::ControlModifier)) {
+    browserManager->closeCurrentWebView();
+  }
+}
+
+void MainWindow::toggleURLInput() {
+  commandInput->isHidden() ? showURLInput() : hideURLInput();
+}