From 1e2302be2b47fbeb340db7482ed8476c829a7f66 Mon Sep 17 00:00:00 2001
From: Akshay Nair <phenax5@gmail.com>
Date: Sun, 9 Mar 2025 18:15:12 +0530
Subject: Add browser manager + add multitab management (next/prev/close/new)

---
 src/BrowserManager.cpp | 124 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 src/BrowserManager.cpp

(limited to 'src/BrowserManager.cpp')

diff --git a/src/BrowserManager.cpp b/src/BrowserManager.cpp
new file mode 100644
index 0000000..ddc6105
--- /dev/null
+++ b/src/BrowserManager.cpp
@@ -0,0 +1,124 @@
+#include <QStackedLayout>
+#include <QWebEngineNewWindowRequest>
+#include <QWebEngineView>
+
+#include "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);
+}
-- 
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