fix webview show when window drag

Signed-off-by: jiangdayuan <jiangdayuan@huawei.com>

frameworks/core/components/web/rosen_render_web.cpp

@@ -59,6 +59,9 @@ void RosenRenderWeb::Paint(RenderContext& context, const Offset& offset)
         LOGE("OnAttachContext context null");
         return;
     }
+    if (pipelineContext->GetIsDragStart()) {
+        drawSize_ = Size(1.0, 1.0);
+    }
     if (drawSize_.Width() > pipelineContext->GetRootWidth() || drawSize_.Height() > pipelineContext->GetRootHeight()) {
         LOGE("Web drawSize height or width is invalid");
     }

frameworks/core/pipeline/pipeline_context.cpp

@@ -1845,10 +1845,19 @@ void PipelineContext::WindowSizeChangeAnimate(int32_t width, int32_t height, Win
             [[fallthrough]];
         }
         case WindowSizeChangeReason::DRAG_START: {
+            isDragStart_ = true;
             BlurWindowWithDrag(true);
             break;
         }
+        case WindowSizeChangeReason::DRAG: {
+            isFirstDrag_ = false;
+            // Refresh once when first dragging.
+            SetRootSizeWithWidthHeight(width, height);
+            break;
+        }
         case WindowSizeChangeReason::DRAG_END: {
+            isDragStart_ = false;
+            isFirstDrag_ = true;
             BlurWindowWithDrag(false);
             SetRootSizeWithWidthHeight(width, height);
             break;
@@ -1875,7 +1884,7 @@ void PipelineContext::OnSurfaceChanged(int32_t width, int32_t height, WindowSize
         return;
     }
 #endif
-    if (type == WindowSizeChangeReason::DRAG) {
+    if (type == WindowSizeChangeReason::DRAG && isDragStart_ && !isFirstDrag_) {
         LOGI("WindowSizeChangeReason is drag, no need change size.");
         return;
     }

frameworks/core/pipeline/pipeline_context.h

@@ -1224,6 +1224,12 @@ public:
     {
         return isSubPipeline_;
     }
+
+    bool GetIsDragStart() const
+    {
+        return isDragStart_;
+    }
+
 private:
     void FlushVsync(uint64_t nanoTimestamp, uint32_t frameCount);
     void FlushPipelineWithoutAnimation();
@@ -1391,6 +1397,8 @@ private:
     bool isJsPlugin_ = false;
     bool useLiteStyle_ = false;
     bool isFirstLoaded_ = true;
+    bool isDragStart_ = false;
+    bool isFirstDrag_ = true;
     uint64_t flushAnimationTimestamp_ = 0;
     TimeProvider timeProvider_;
     OnPageShowCallBack onPageShowCallBack_;