fix: 新增在wayland环境下dock获取应用snap shot的逻辑

目前dock获取应用snap shot是通过函数getImageDSHM(),
该函数内部调用了XGetWindowProperty来获取窗口属性，
这将导致在wayland环境下无法正常运行。

Log: 修复wayland环境下获取应用snap shot导致任务栏崩溃的问题
Influence: 任务栏预览功能
Task: https://pms.uniontech.com/zentao/task-view-88921.html
Change-Id: Ic565c62512768fc3ba28c72a05cdd0f5162a8711

frame/item/components/appsnapshot.cpp

@@ -180,8 +180,12 @@ void AppSnapshot::setWindowInfo(const WindowInfo &info)
     QFontMetrics fm(m_title->font());
     QString strTtile = m_title->fontMetrics().elidedText(m_windowInfo.title, Qt::ElideRight, width() - m_closeBtn2D->width());
     m_title->setText(strTtile);
-    getWindowState();
     updateTitle();
+
+    // 只有在X11下，才能通过XGetWindowProperty获取窗口属性
+    if (qEnvironmentVariable("XDG_SESSION_TYPE").contains("x11")) {
+        getWindowState();
+    }
 }
 
 void AppSnapshot::dragEnterEvent(QDragEnterEvent *e)
@@ -202,41 +206,60 @@ void AppSnapshot::fetchSnapshot()
     uchar *image_data = nullptr;
     XImage *ximage = nullptr;
 
-    do {
+    // wayland环境下，使用KWin提供的接口
-        // get window image from shm(only for deepin app)
+    if (isKWinAvailable() && Utils::IS_WAYLAND_DISPLAY) {
-        info = getImageDSHM();
+        QDBusInterface interface(QStringLiteral("org.kde.KWin"), QStringLiteral("/Screenshot"), QStringLiteral("org.kde.kwin.Screenshot"));
-        if (info) {
+        qDebug() << "windowsID:"<< m_wid;
-            qDebug() << "get Image from dxcbplugin SHM...";
+
-            //qDebug() << info->shmid << info->width << info->height << info->bytesPerLine << info->format << info->rect.x << info->rect.y << info->rect.width << info->rect.height;
+        QList<QVariant> args;
-            image_data = (uchar *)shmat(info->shmid, 0, 0);
+        args << QVariant::fromValue(m_wid);
-            if ((qint64)image_data != -1) {
+        args << QVariant::fromValue(quint32(SNAP_WIDTH));
-                m_snapshot = QImage(image_data, info->width, info->height, info->bytesPerLine, (QImage::Format)info->format);
+        args << QVariant::fromValue(quint32(SNAP_HEIGHT));
-                m_snapshotSrcRect = QRect(info->rect.x, info->rect.y, info->rect.width, info->rect.height);
+
-                break;
+        QDBusReply<QString> reply = interface.callWithArgumentList(QDBus::Block,QStringLiteral("screenshotForWindowExtend"), args);
-            }
+        if(reply.isValid()){
-            qDebug() << "invalid pointer of shm!";
+            m_snapshot.load(reply.value());
-            image_data = nullptr;
+            qDebug() << "reply: "<<reply.value();
+        } else {
+            qDebug() << "get current workspace bckground error: "<< reply.error().message();
         }
-
+        m_snapshotSrcRect = m_snapshot.rect();
-        if (!image_data || qimage.isNull()) {
+    } else {
-            // get window image from XGetImage(a little slow)
+        do {
-            qDebug() << "get Image from dxcbplugin SHM failed!";
+            // get window image from shm(only for deepin app)
-            qDebug() << "get Image from Xlib...";
+            info = getImageDSHM();
-            ximage = getImageXlib();
+            if (info) {
-            if (!ximage) {
+                qDebug() << "get Image from dxcbplugin SHM...";
-                qDebug() << "get Image from Xlib failed! giving up...";
+                image_data = (uchar *)shmat(info->shmid, 0, 0);
-                emit requestCheckWindow();
+                if ((qint64)image_data != -1) {
-                return;
+                    m_snapshot = QImage(image_data, info->width, info->height, info->bytesPerLine, (QImage::Format)info->format);
+                    m_snapshotSrcRect = QRect(info->rect.x, info->rect.y, info->rect.width, info->rect.height);
+                    break;
+                }
+                qDebug() << "invalid pointer of shm!";
+                image_data = nullptr;
             }
-            qimage = QImage((const uchar *)(ximage->data), ximage->width, ximage->height, ximage->bytes_per_line, QImage::Format_RGB32);
-        }
 
-        Q_ASSERT(!qimage.isNull());
+            if (!image_data || qimage.isNull()) {
+                // get window image from XGetImage(a little slow)
+                qDebug() << "get Image from dxcbplugin SHM failed!";
+                qDebug() << "get Image from Xlib...";
+                ximage = getImageXlib();
+                if (!ximage) {
+                    qDebug() << "get Image from Xlib failed! giving up...";
+                    emit requestCheckWindow();
+                    return;
+                }
+                qimage = QImage((const uchar *)(ximage->data), ximage->width, ximage->height, ximage->bytes_per_line, QImage::Format_RGB32);
+            }
 
-        // remove shadow frame
+            Q_ASSERT(!qimage.isNull());
-        m_snapshotSrcRect = rectRemovedShadow(qimage, nullptr);
+
-        m_snapshot = qimage;
+            // remove shadow frame
-    } while (false);
+            m_snapshotSrcRect = rectRemovedShadow(qimage, nullptr);
+            m_snapshot = qimage;
+        } while (false);
+    }
 
     QSizeF size(rect().marginsRemoved(QMargins(8, 8, 8, 8)).size());
     const auto ratio = devicePixelRatioF();
@@ -463,3 +486,14 @@ void AppSnapshot::getWindowState()
         XFree(properties);
     }
 }
+
+bool AppSnapshot::isKWinAvailable()
+{
+    if (QDBusConnection::sessionBus().interface()->isServiceRegistered(QStringLiteral("org.kde.KWin"))) {
+        QDBusInterface interface(QStringLiteral("org.kde.KWin"), QStringLiteral("/Effects"), QStringLiteral("org.kde.kwin.Effects"));
+        QDBusReply<bool> reply = interface.call(QStringLiteral("isEffectLoaded"), "screenshot");
+
+        return reply.value();
+    }
+    return false;
+}

frame/item/components/appsnapshot.h

@@ -77,6 +77,7 @@ public:
     void setWindowState();
     void setTitleVisible(bool bVisible);
     QString appTitle() { return m_3DtitleBtn ? m_3DtitleBtn->text() : QString(); }
+    bool isKWinAvailable();
 
 signals:
     void entered(const WId wid) const;