Enable IMF on Webview (flutter-tizen#17)

seungsoo47 · bwikbs · commit b02b245b2f35 · 2021-01-27T09:01:31.000+09:00
diff --git a/packages/webview_flutter/example/tizen/shared/res/input.html b/packages/webview_flutter/example/tizen/shared/res/input.html
@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<html>
+ <head>
+ </head>
+
+ <body>
+	<input id="ip1" type="text" ></input>
+	<button onclick="a()">Click</button>
+	<input id="ip2" type="text" ></input>
+ </body>
+	<script>
+		function a() {
+			console.log("Hello: " + document.getElementById("ip1").value);
+		}
+	</script>
+</html>
diff --git a/packages/webview_flutter/lib/webview_flutter_tizen.dart b/packages/webview_flutter/lib/webview_flutter_tizen.dart
@@ -78,12 +78,10 @@ class TizenViewController extends PlatformViewController {
 
   int _textureId;
 
-  @override
   int get textureId => _textureId;
 
   Size _size;
 
-  @override
   Future<void> setSize(Size size) async {
     assert(_state != _TizenViewState.disposed,
         'trying to size a disposed Tizen View. View id: $viewId');
@@ -103,7 +101,6 @@ class TizenViewController extends PlatformViewController {
     });
   }
 
-  @override
   Future<void> _sendCreateMessage() async {
     assert(!_size.isEmpty,
         'trying to create $TizenViewController without setting a valid size.');
@@ -128,7 +125,6 @@ class TizenViewController extends PlatformViewController {
         await SystemChannels.platform_views.invokeMethod<int>('create', args);
   }
 
-  @override
   Future<void> _sendDisposeMessage() {
     return SystemChannels.platform_views
         .invokeMethod<void>('dispose', <String, dynamic>{
@@ -205,8 +201,8 @@ class TizenViewController extends PlatformViewController {
     }
     await SystemChannels.platform_views
         .invokeMethod<dynamic>('touch', <String, dynamic>{
-      "id": viewId,
-      "event": [
+      'id': viewId,
+      'event': <dynamic>[
         eventType, // int, pointer event type
         event.buttons, // int, mouse button type (left, right, middle)
         event.localPosition.dx, // double, global position x
@@ -222,6 +218,7 @@ class TizenViewController extends PlatformViewController {
     if (_state != _TizenViewState.created) {
       return Future<void>.value();
     }
+    // print('clearFocus : $viewId');
     return SystemChannels.platform_views
         .invokeMethod<void>('clearFocus', viewId);
   }
@@ -628,6 +625,7 @@ class _TizenWebViewState extends State<TizenWebView_> {
 
   @override
   void didUpdateWidget(TizenWebView_ oldWidget) {
+    // print('webview: didUpdateWidget()');
     super.didUpdateWidget(oldWidget);
 
     final TextDirection newLayoutDirection = _findLayoutDirection();
@@ -688,6 +686,7 @@ class _TizenWebViewState extends State<TizenWebView_> {
       });
       return;
     }
+    // print('_onFocusChange - viewId : $_id');
     SystemChannels.textInput
         .invokeMethod<void>(
       'TextInput.setPlatformViewClient',
diff --git a/packages/webview_flutter/tizen/lib/liblightweight-web-engine.so b/packages/webview_flutter/tizen/lib/liblightweight-web-engine.so
diff --git a/packages/webview_flutter/tizen/src/webview.cc b/packages/webview_flutter/tizen/src/webview.cc
@@ -435,6 +435,31 @@ void WebView::DispatchKeyUpEvent(Ecore_Event_Key* keyEvent) {
       p);
 }
 
+void WebView::SetSoftwareKeyboardContext(Ecore_IMF_Context* context) {
+  webViewInstance_->RegisterOnShowSoftwareKeyboardIfPossibleHandler(
+      [context](LWE::WebContainer* v) {
+        LOG_DEBUG("WebView - Show Keyboard()\n");
+        if (!context) {
+          LOG_ERROR("Ecore_IMF_Context NULL\n");
+          return;
+        }
+        ecore_imf_context_input_panel_show(context);
+        ecore_imf_context_focus_in(context);
+      });
+
+  webViewInstance_->RegisterOnHideSoftwareKeyboardIfPossibleHandler(
+      [context](LWE::WebContainer*) {
+        LOG_INFO("WebView - Hide Keyboard()\n");
+        if (!context) {
+          LOG_INFO("Ecore_IMF_Context NULL\n");
+          return;
+        }
+        ecore_imf_context_reset(context);
+        ecore_imf_context_focus_out(context);
+        ecore_imf_context_input_panel_hide(context);
+      });
+}
+
 void WebView::ClearFocus() { LOG_DEBUG("WebView::clearFocus \n"); }
 
 void WebView::SetDirection(int direction) {
diff --git a/packages/webview_flutter/tizen/src/webview.h b/packages/webview_flutter/tizen/src/webview.h
@@ -11,6 +11,8 @@ namespace LWE {
 class WebContainer;
 }
 
+class TextInputChannel;
+
 class WebView : public PlatformView {
  public:
   WebView(flutter::PluginRegistrar* registrar, int viewId,
@@ -28,6 +30,8 @@ class WebView : public PlatformView {
   virtual void DispatchKeyDownEvent(Ecore_Event_Key* key) override;
   virtual void DispatchKeyUpEvent(Ecore_Event_Key* key) override;
 
+  virtual void SetSoftwareKeyboardContext(Ecore_IMF_Context* context) override;
+
  private:
   void HandleMethodCall(
       const flutter::MethodCall<flutter::EncodableValue>& method_call,
