LibWeb: Support setting the cursor in OutOfProcessWebView

Author: https://github.com/ant1441
Commit: bedcd9cd88
Pull-request: https://github.com/SerenityOS/serenity/pull/5558

Userland/Libraries/LibWeb/OutOfProcessWebView.cpp

@@ -229,6 +229,11 @@ void OutOfProcessWebView::notify_server_did_change_selection(Badge<WebContentCli
     request_repaint();
 }
 
+void OutOfProcessWebView::notify_server_did_request_cursor_change(Badge<WebContentClient>, Gfx::StandardCursor cursor)
+{
+    set_override_cursor(cursor);
+}
+
 void OutOfProcessWebView::notify_server_did_layout(Badge<WebContentClient>, const Gfx::IntSize& content_size)
 {
     set_content_size(content_size);

Userland/Libraries/LibWeb/OutOfProcessWebView.h

@@ -58,6 +58,7 @@ public:
     void notify_server_did_paint(Badge<WebContentClient>, i32 bitmap_id);
     void notify_server_did_invalidate_content_rect(Badge<WebContentClient>, const Gfx::IntRect&);
     void notify_server_did_change_selection(Badge<WebContentClient>);
+    void notify_server_did_request_cursor_change(Badge<WebContentClient>, Gfx::StandardCursor cursor);
     void notify_server_did_change_title(Badge<WebContentClient>, const String&);
     void notify_server_did_request_scroll_into_view(Badge<WebContentClient>, const Gfx::IntRect&);
     void notify_server_did_hover_link(Badge<WebContentClient>, const URL&);

Userland/Libraries/LibWeb/WebContentClient.cpp

@@ -74,6 +74,15 @@ void WebContentClient::handle(const Messages::WebContentClient::DidChangeSelecti
     m_view.notify_server_did_change_selection({});
 }
 
+void WebContentClient::handle(const Messages::WebContentClient::DidRequestCursorChange& message)
+{
+    if (message.cursor_type() < 0 || message.cursor_type() >= (i32)Gfx::StandardCursor::__Count) {
+        dbgln("DidRequestCursorChange: Bad cursor type");
+        return;
+    }
+    m_view.notify_server_did_request_cursor_change({}, (Gfx::StandardCursor)message.cursor_type());
+}
+
 void WebContentClient::handle(const Messages::WebContentClient::DidLayout& message)
 {
     dbgln_if(SPAM_DEBUG, "handle: WebContentClient::DidLayout! content_size={}", message.content_size());

Userland/Libraries/LibWeb/WebContentClient.h

@@ -54,6 +54,7 @@ private:
     virtual void handle(const Messages::WebContentClient::DidFinishLoading&) override;
     virtual void handle(const Messages::WebContentClient::DidInvalidateContentRect&) override;
     virtual void handle(const Messages::WebContentClient::DidChangeSelection&) override;
+    virtual void handle(const Messages::WebContentClient::DidRequestCursorChange&) override;
     virtual void handle(const Messages::WebContentClient::DidLayout&) override;
     virtual void handle(const Messages::WebContentClient::DidChangeTitle&) override;
     virtual void handle(const Messages::WebContentClient::DidRequestScrollIntoView&) override;

Userland/Services/WebContent/PageHost.cpp

@@ -113,6 +113,11 @@ void PageHost::page_did_change_selection()
     m_client.post_message(Messages::WebContentClient::DidChangeSelection());
 }
 
+void PageHost::page_did_request_cursor_change(Gfx::StandardCursor cursor)
+{
+    m_client.post_message(Messages::WebContentClient::DidRequestCursorChange((u32)cursor));
+}
+
 void PageHost::page_did_layout()
 {
     auto* layout_root = this->layout_root();

Userland/Services/WebContent/PageHost.h

@@ -56,6 +56,7 @@ private:
     virtual Gfx::Palette palette() const override;
     virtual void page_did_invalidate(const Gfx::IntRect&) override;
     virtual void page_did_change_selection() override;
+    virtual void page_did_request_cursor_change(Gfx::StandardCursor) override;
     virtual void page_did_layout() override;
     virtual void page_did_change_title(const String&) override;
     virtual void page_did_request_scroll_into_view(const Gfx::IntRect&) override;

Userland/Services/WebContent/WebContentClient.ipc

@@ -5,6 +5,7 @@ endpoint WebContentClient = 90
     DidPaint(Gfx::IntRect content_rect, i32 bitmap_id) =|
     DidInvalidateContentRect(Gfx::IntRect content_rect) =|
     DidChangeSelection() =|
+    DidRequestCursorChange(i32 cursor_type) =|
     DidLayout(Gfx::IntSize content_size) =|
     DidChangeTitle(String title) =|
     DidRequestScrollIntoView(Gfx::IntRect rect) =|