Browser+LibWebView+WebContent: Add IPC to minimize and maximize window

Requests to maximize and minimize Browser windows will be coming from
the WebContent process rather than the WebDriver process. Add hooks to
propagate these requests back up to the Browser.

Userland/Applications/Browser/Tab.cpp

@@ -264,6 +264,17 @@ Tab::Tab(BrowserWindow& window)
         return this->window().size();
     };
 
+    view().on_maximize_window = [this]() {
+        this->window().set_maximized(true);
+        return this->window().rect();
+    };
+
+    view().on_minimize_window = [this]() {
+        this->window().set_minimized(true);
+        m_web_content_view->set_system_visibility_state(false);
+        return this->window().rect();
+    };
+
     m_link_context_menu = GUI::Menu::construct();
     auto link_default_action = GUI::Action::create("&Open", g_icon_bag.go_to, [this](auto&) {
         view().on_link_click(m_link_context_menu_url, "", 0);

Userland/Libraries/LibWebView/OutOfProcessWebView.cpp

@@ -421,6 +421,20 @@ Gfx::IntSize OutOfProcessWebView::notify_server_did_request_resize_window(Gfx::I
     return {};
 }
 
+Gfx::IntRect OutOfProcessWebView::notify_server_did_request_maximize_window()
+{
+    if (on_maximize_window)
+        return on_maximize_window();
+    return {};
+}
+
+Gfx::IntRect OutOfProcessWebView::notify_server_did_request_minimize_window()
+{
+    if (on_minimize_window)
+        return on_minimize_window();
+    return {};
+}
+
 void OutOfProcessWebView::notify_server_did_request_file(Badge<WebContentClient>, String const& path, i32 request_id)
 {
     auto file = FileSystemAccessClient::Client::the().try_request_file_read_only_approved(window(), path);

Userland/Libraries/LibWebView/OutOfProcessWebView.h

@@ -115,6 +115,8 @@ public:
     Function<void()> on_restore_window;
     Function<Gfx::IntPoint(Gfx::IntPoint const&)> on_reposition_window;
     Function<Gfx::IntSize(Gfx::IntSize const&)> on_resize_window;
+    Function<Gfx::IntRect()> on_maximize_window;
+    Function<Gfx::IntRect()> on_minimize_window;
 
 private:
     OutOfProcessWebView();
@@ -175,6 +177,8 @@ private:
     virtual void notify_server_did_request_restore_window() override;
     virtual Gfx::IntPoint notify_server_did_request_reposition_window(Gfx::IntPoint const&) override;
     virtual Gfx::IntSize notify_server_did_request_resize_window(Gfx::IntSize const&) override;
+    virtual Gfx::IntRect notify_server_did_request_maximize_window() override;
+    virtual Gfx::IntRect notify_server_did_request_minimize_window() override;
     virtual void notify_server_did_request_file(Badge<WebContentClient>, String const& path, i32) override;
 
     void request_repaint();

Userland/Libraries/LibWebView/ViewImplementation.h

@@ -53,6 +53,8 @@ public:
     virtual void notify_server_did_request_restore_window() = 0;
     virtual Gfx::IntPoint notify_server_did_request_reposition_window(Gfx::IntPoint const&) = 0;
     virtual Gfx::IntSize notify_server_did_request_resize_window(Gfx::IntSize const&) = 0;
+    virtual Gfx::IntRect notify_server_did_request_maximize_window() = 0;
+    virtual Gfx::IntRect notify_server_did_request_minimize_window() = 0;
     virtual void notify_server_did_request_file(Badge<WebContentClient>, String const& path, i32) = 0;
 };
 

Userland/Libraries/LibWebView/WebContentClient.cpp

@@ -215,6 +215,16 @@ Messages::WebContentClient::DidRequestResizeWindowResponse WebContentClient::did
     return m_view.notify_server_did_request_resize_window(size);
 }
 
+Messages::WebContentClient::DidRequestMaximizeWindowResponse WebContentClient::did_request_maximize_window()
+{
+    return m_view.notify_server_did_request_maximize_window();
+}
+
+Messages::WebContentClient::DidRequestMinimizeWindowResponse WebContentClient::did_request_minimize_window()
+{
+    return m_view.notify_server_did_request_minimize_window();
+}
+
 void WebContentClient::did_request_file(String const& path, i32 request_id)
 {
     m_view.notify_server_did_request_file({}, path, request_id);

Userland/Libraries/LibWebView/WebContentClient.h

@@ -64,6 +64,8 @@ private:
     virtual void did_request_restore_window() override;
     virtual Messages::WebContentClient::DidRequestRepositionWindowResponse did_request_reposition_window(Gfx::IntPoint const&) override;
     virtual Messages::WebContentClient::DidRequestResizeWindowResponse did_request_resize_window(Gfx::IntSize const&) override;
+    virtual Messages::WebContentClient::DidRequestMaximizeWindowResponse did_request_maximize_window() override;
+    virtual Messages::WebContentClient::DidRequestMinimizeWindowResponse did_request_minimize_window() override;
     virtual void did_request_file(String const& path, i32) override;
 
     ViewImplementation& m_view;

Userland/Services/WebContent/WebContentClient.ipc

@@ -41,6 +41,8 @@ endpoint WebContentClient
     did_request_restore_window() =|
     did_request_reposition_window(Gfx::IntPoint position) => (Gfx::IntPoint window_position)
     did_request_resize_window(Gfx::IntSize size) => (Gfx::IntSize window_size)
+    did_request_maximize_window() => (Gfx::IntRect window_rect)
+    did_request_minimize_window() => (Gfx::IntRect window_rect)
     did_request_file(String path, i32 request_id) =|
 
     did_output_js_console_message(i32 message_index) =|