Add scrolling controls

4 files changed, 58 insertions, 0 deletions

diff --git a/src/widgets/WebView.cpp b/src/widgets/WebView.cpp
index aead605..0ec2a74 100644
--- a/src/widgets/WebView.cpp
+++ b/src/widgets/WebView.cpp
@@ -21,3 +21,25 @@ void WebView::open_devtools() {
 
   page()->setDevToolsPage(devtools_window->page());
 }
+
+void WebView::scroll_increment(int deltax, int deltay) {
+  auto code = QString(R"((() => {
+    const $el = document.scrollingElement;
+    $el.scrollTo($el.scrollLeft + %1, $el.scrollTop + %2);
+  })())")
+                  .arg(deltax)
+                  .arg(deltay);
+
+  page()->runJavaScript(code);
+}
+
+void WebView::scroll_to_top() {
+  auto code = QString(R"(document.scrollingElement.scrollTo(0, 0))");
+  page()->runJavaScript(code);
+}
+
+void WebView::scroll_to_bottom() {
+  auto code =
+      QString(R"(document.scrollingElement.scrollTo(0, document.scrollingElement.scrollHeight))");
+  page()->runJavaScript(code);
+}
diff --git a/src/widgets/WebView.hpp b/src/widgets/WebView.hpp
index c861b6e..0900ea6 100644
--- a/src/widgets/WebView.hpp
+++ b/src/widgets/WebView.hpp
@@ -37,6 +37,9 @@ class WebView : public QWebEngineView {
 public:
   WebView(uint32_t webview_id, QWebEngineProfile *profile, QWidget *parent_node = nullptr);
   void open_devtools();
+  void scroll_increment(int deltax, int deltay);
+  void scroll_to_top();
+  void scroll_to_bottom();
 
   DEFINE_GETTER(get_id, id)
 
diff --git a/src/widgets/WebViewStack.cpp b/src/widgets/WebViewStack.cpp
index 9eef92a..53224c5 100644
--- a/src/widgets/WebViewStack.cpp
+++ b/src/widgets/WebViewStack.cpp
@@ -276,3 +276,33 @@ void WebViewStack::set_webview_url(const QUrl &url, WebViewId webview_id) {
 
   webview->setUrl(url);
 }
+
+void WebViewStack::scroll(WebViewId webview_id, int deltax, int deltay) {
+  auto *webview = get_webview(webview_id);
+  if (webview == nullptr) {
+    qDebug() << "Webview does not exist";
+    return;
+  }
+
+  webview->scroll_increment(deltax, deltay);
+}
+
+void WebViewStack::scroll_to_top(WebViewId webview_id) {
+  auto *webview = get_webview(webview_id);
+  if (webview == nullptr) {
+    qDebug() << "Webview does not exist";
+    return;
+  }
+
+  webview->scroll_to_top();
+}
+
+void WebViewStack::scroll_to_bottom(WebViewId webview_id) {
+  auto *webview = get_webview(webview_id);
+  if (webview == nullptr) {
+    qDebug() << "Webview does not exist";
+    return;
+  }
+
+  webview->scroll_to_bottom();
+}
diff --git a/src/widgets/WebViewStack.hpp b/src/widgets/WebViewStack.hpp
index fb78255..6e17753 100644
--- a/src/widgets/WebViewStack.hpp
+++ b/src/widgets/WebViewStack.hpp
@@ -67,6 +67,9 @@ public slots:
   void focus_webview(WebViewId webview_id);
   void set_search_text(const QString &text, WebViewId webview_id, bool forward = true);
   void open_devtools(WebViewId webview_id);
+  void scroll(WebViewId webview_id, int deltax, int deltay);
+  void scroll_to_top(WebViewId webview_id);
+  void scroll_to_bottom(WebViewId webview_id);
 
 protected slots:
   void on_new_webview_request(const QWebEngineNewWindowRequest &request);