From 67b7ef44f5e72644c7bdfafbb92d6b9574fab2c1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=9F=B3=E5=8D=9A=E6=96=87?= <sbw@sbw.so>
Date: Thu, 22 Feb 2018 17:19:55 +0800
Subject: [PATCH] Fix app window snapshot size error

Change-Id: I2a576454562536808fcf1b788a5cebf151a986d0
---
 frame/item/appitem.cpp                | 4 ++--
 frame/item/components/appsnapshot.cpp | 9 +++++++++
 frame/item/components/appsnapshot.h   | 1 +
 3 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/frame/item/appitem.cpp b/frame/item/appitem.cpp
index 5cbeaa863..a8c92f406 100644
--- a/frame/item/appitem.cpp
+++ b/frame/item/appitem.cpp
@@ -616,11 +616,11 @@ void AppItem::showPreview()
 //    default:        return;
 //    }
 
+    showPopupWindow(m_appPreviewTips, true);
+
     m_appPreviewTips->setWindowInfos(m_windowInfos);
     m_appPreviewTips->updateSnapshots();
     m_appPreviewTips->updateLayoutDirection(DockPosition);
-
-    showPopupWindow(m_appPreviewTips, true);
 }
 
 void AppItem::cancelAndHidePreview()
diff --git a/frame/item/components/appsnapshot.cpp b/frame/item/components/appsnapshot.cpp
index f1f6e6a16..d9bff6767 100644
--- a/frame/item/components/appsnapshot.cpp
+++ b/frame/item/components/appsnapshot.cpp
@@ -87,6 +87,8 @@ void AppSnapshot::compositeChanged() const
     const bool composite = m_wmHelper->hasComposite();
 
     m_title->setVisible(!composite);
+
+    QTimer::singleShot(1, this, &AppSnapshot::fetchSnapshot);
 }
 
 void AppSnapshot::setWindowInfo(const WindowInfo &info)
@@ -214,6 +216,13 @@ void AppSnapshot::paintEvent(QPaintEvent *e)
     painter.drawImage(offset_x, offset_y, im);
 }
 
+void AppSnapshot::resizeEvent(QResizeEvent *e)
+{
+    QWidget::resizeEvent(e);
+
+    QTimer::singleShot(1, this, &AppSnapshot::fetchSnapshot);
+}
+
 void AppSnapshot::mousePressEvent(QMouseEvent *e)
 {
     QWidget::mousePressEvent(e);
diff --git a/frame/item/components/appsnapshot.h b/frame/item/components/appsnapshot.h
index d82a21204..5415c1330 100644
--- a/frame/item/components/appsnapshot.h
+++ b/frame/item/components/appsnapshot.h
@@ -65,6 +65,7 @@ private:
     void enterEvent(QEvent *e);
     void leaveEvent(QEvent *e);
     void paintEvent(QPaintEvent *e);
+    void resizeEvent(QResizeEvent *e);
     void mousePressEvent(QMouseEvent *e);
 
 private: