Add option to map tablet to full desktop area.

Some users might want to map the tablet to full desktop area.

BUG: 450874

src/backends/libinput/connection.cpp

@@ -511,16 +511,19 @@ void Connection::processEvents()
 
             if (workspace()) {
 #ifndef KWIN_BUILD_TESTING
-                Output *output = tte->device()->output();
-                if (!output && workspace()->activeWindow()) {
-                    output = workspace()->activeWindow()->output();
-                }
-                if (!output) {
-                    output = workspace()->activeOutput();
+                QPointF globalPos;
+                if (tte->device()->isMapToWorkspace()) {
+                    globalPos = workspace()->geometry().topLeft() + tte->transformedPosition(workspace()->geometry().size());
+                } else {
+                    Output *output = tte->device()->output();
+                    if (!output && workspace()->activeWindow()) {
+                        output = workspace()->activeWindow()->output();
+                    }
+                    if (!output) {
+                        output = workspace()->activeOutput();
+                    }
+                    globalPos = devicePointToGlobalPosition(tte->transformedPosition(output->modeSize()), output);
                 }
-                const QPointF globalPos =
-                    devicePointToGlobalPosition(tte->transformedPosition(output->modeSize()),
-                                                output);
 #else
                 const QPointF globalPos;
 #endif

src/backends/libinput/device.cpp

@@ -99,6 +99,7 @@ enum class ConfigKey {
     Calibration,
     OutputName,
     OutputArea,
+    MapToWorkspace
 };
 
 struct ConfigDataBase
@@ -206,6 +207,7 @@ static const QMap<ConfigKey, std::shared_ptr<ConfigDataBase>> s_configData{
     {ConfigKey::Calibration, std::make_shared<ConfigData<CalibrationMatrix>>()},
     {ConfigKey::OutputName, std::make_shared<ConfigData<QString>>(QByteArrayLiteral("OutputName"), &Device::setOutputName, &Device::defaultOutputName)},
     {ConfigKey::OutputArea, std::make_shared<ConfigData<QRectF>>(QByteArrayLiteral("OutputArea"), &Device::setOutputArea, &Device::defaultOutputArea)},
+    {ConfigKey::MapToWorkspace, std::make_shared<ConfigData<bool>>(QByteArrayLiteral("MapToWorkspace"), &Device::setMapToWorkspace, &Device::defaultMapToWorkspace)},
 };
 
 namespace
@@ -711,6 +713,15 @@ void Device::setOutputArea(const QRectF &outputArea)
         Q_EMIT outputAreaChanged();
     }
 }
+
+void Device::setMapToWorkspace(bool mapToWorkspace)
+{
+    if (m_mapToWorkspace != mapToWorkspace) {
+        m_mapToWorkspace = mapToWorkspace;
+        writeEntry(ConfigKey::MapToWorkspace, m_mapToWorkspace);
+        Q_EMIT mapToWorkspaceChanged();
+    }
+}
 }
 }
 

src/backends/libinput/device.h

@@ -141,6 +141,8 @@ class KWIN_EXPORT Device : public InputDevice
     Q_PROPERTY(bool supportsOutputArea READ supportsOutputArea CONSTANT)
     Q_PROPERTY(QRectF defaultOutputArea READ defaultOutputArea CONSTANT)
     Q_PROPERTY(QRectF outputArea READ outputArea WRITE setOutputArea NOTIFY outputAreaChanged)
+    Q_PROPERTY(bool defaultMapToWorkspace READ defaultMapToWorkspace CONSTANT)
+    Q_PROPERTY(bool mapToWorkspace READ isMapToWorkspace WRITE setMapToWorkspace NOTIFY mapToWorkspaceChanged)
 
 public:
     explicit Device(libinput_device *device, QObject *parent = nullptr);
@@ -628,6 +630,18 @@ public:
     QRectF outputArea() const;
     void setOutputArea(const QRectF &outputArea);
 
+    bool defaultMapToWorkspace() const
+    {
+        return defaultValue("MapToWorkspace", false);
+    }
+
+    bool isMapToWorkspace() const
+    {
+        return m_mapToWorkspace;
+    }
+
+    void setMapToWorkspace(bool mapToWorkspace);
+
     /**
      * Gets the Device for @p native. @c null if there is no Device for @p native.
      */
@@ -653,6 +667,7 @@ Q_SIGNALS:
     void scrollFactorChanged();
     void clickMethodChanged();
     void outputAreaChanged();
+    void mapToWorkspaceChanged();
 
 private:
     template<typename T>
@@ -740,6 +755,7 @@ private:
 
     LEDs m_leds;
     QRectF m_outputArea = QRectF(0, 0, 1, 1);
+    bool m_mapToWorkspace = false;
 };
 
 }