[desktop-webview-window] Show and Hide Webview window (#268)

* Show Webview Window Commit

* include new runner generated by dart automatically

* change function name to setWebviewWindowVisibility

* change also messageCallName

Author: Iri-Hor

packages/desktop_webview_window/example/windows/runner/Runner.rc

@@ -60,14 +60,14 @@ IDI_APP_ICON            ICON                    "resources\\app_icon.ico"
 // Version
 //
 
-#ifdef FLUTTER_BUILD_NUMBER
-#define VERSION_AS_NUMBER FLUTTER_BUILD_NUMBER
+#if defined(FLUTTER_VERSION_MAJOR) && defined(FLUTTER_VERSION_MINOR) && defined(FLUTTER_VERSION_PATCH) && defined(FLUTTER_VERSION_BUILD)
+#define VERSION_AS_NUMBER FLUTTER_VERSION_MAJOR,FLUTTER_VERSION_MINOR,FLUTTER_VERSION_PATCH,FLUTTER_VERSION_BUILD
 #else
-#define VERSION_AS_NUMBER 1,0,0
+#define VERSION_AS_NUMBER 1,0,0,0
 #endif
 
-#ifdef FLUTTER_BUILD_NAME
-#define VERSION_AS_STRING #FLUTTER_BUILD_NAME
+#if defined(FLUTTER_VERSION)
+#define VERSION_AS_STRING FLUTTER_VERSION
 #else
 #define VERSION_AS_STRING "1.0.0"
 #endif

packages/desktop_webview_window/lib/src/webview.dart

@@ -53,6 +53,9 @@ abstract class Webview {
   /// Navigate to the next page in the history.
   Future<void> forward();
 
+  /// Show or hide webview window
+  Future<void> setWebviewWindowVisibility(bool visible);
+
   /// Reload the current page.
   Future<void> reload();
 

packages/desktop_webview_window/lib/src/webview_impl.dart

@@ -170,6 +170,14 @@ class WebviewImpl extends Webview {
     return channel.invokeMethod("forward", {"viewId": viewId});
   }
 
+  @override
+  Future<void> setWebviewWindowVisibility(bool visible) {
+    return channel.invokeMethod("setWebviewWindowVisibility", {
+      "viewId": viewId,
+      "visible": visible,
+    });
+  }
+
   @override
   Future<void> back() {
     return channel.invokeMethod("back", {"viewId": viewId});

packages/desktop_webview_window/windows/web_view_window_plugin.cc

@@ -162,6 +162,20 @@ void WebviewWindowPlugin::HandleMethodCall(
     }
     windows_[window_id]->GetWebView()->GoForward();
     result->Success();
+  } else if (method_call.method_name() == "setWebviewWindowVisibility") {
+    auto* arguments = std::get_if<flutter::EncodableMap>(method_call.arguments());
+    auto window_id = arguments->at(flutter::EncodableValue("viewId")).LongValue();
+    auto visible = std::get<bool>(arguments->at(flutter::EncodableValue("visible")));
+    if (!windows_.count(window_id)) {
+      result->Error("0", "can not find webview window for id");
+      return;
+    }
+    if (!windows_[window_id]->GetWebView()) {
+      result->Error("0", "webview window not ready");
+      return;
+    }
+    windows_[window_id]->setVisibility(visible);
+    result->Success();
   } else if (method_call.method_name() == "reload") {
     auto *arguments = std::get_if<flutter::EncodableMap>(method_call.arguments());
     auto window_id = arguments->at(flutter::EncodableValue("viewId")).LongValue();

packages/desktop_webview_window/windows/webview_window.cc

@@ -136,6 +136,14 @@ void WebviewWindow::CreateAndShow(const std::wstring &title, int height, int wid
 void WebviewWindow::SetBrightness(int brightness) {
 }
 
+void WebviewWindow::setVisibility(bool visible)
+{
+  if(visible)
+    ::ShowWindow(hwnd_.get(), SW_SHOW);
+  else
+    ::ShowWindow(hwnd_.get(), SW_HIDE);
+}
+
 // static
 LRESULT CALLBACK
 WebviewWindow::WndProc(

packages/desktop_webview_window/windows/webview_window.h

@@ -43,6 +43,7 @@ class WebviewWindow {
                      int windowPosX, int windowPosY, bool useWindowPositionAndSize,
                      bool openMaximized, CreateCallback callback);
 
+
   // OS callback called by message pump. Handles the WM_NCCREATE message which
   // is passed when the non-client area is being created and enables automatic
   // non-client DPI scaling so that the non-client area automatically
@@ -55,6 +56,8 @@ class WebviewWindow {
 
   void SetBrightness(int brightness);
 
+  void setVisibility(bool visible);
+
   [[nodiscard]] const std::unique_ptr<webview_window::WebView> &GetWebView() const {
     return web_view_;
   }