diff --git a/libs/WindowManager/Shell/Android.bp b/libs/WindowManager/Shell/Android.bp
index 89781fd..ef756c5 100644
--- a/libs/WindowManager/Shell/Android.bp
+++ b/libs/WindowManager/Shell/Android.bp
@@ -51,6 +51,7 @@
         "src/com/android/wm/shell/common/split/SplitScreenConstants.java",
         "src/com/android/wm/shell/common/TransactionPool.java",
         "src/com/android/wm/shell/common/TriangleShape.java",
+        "src/com/android/wm/shell/common/desktopmode/*.kt",
         "src/com/android/wm/shell/draganddrop/DragAndDropConstants.java",
         "src/com/android/wm/shell/pip/PipContentOverlay.java",
         "src/com/android/wm/shell/startingsurface/SplashScreenExitAnimationUtils.java",
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/common/desktopmode/DesktopModeTransitionSource.aidl b/libs/WindowManager/Shell/src/com/android/wm/shell/common/desktopmode/DesktopModeTransitionSource.aidl
new file mode 100644
index 0000000..c968e80
--- /dev/null
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/common/desktopmode/DesktopModeTransitionSource.aidl
@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.wm.shell.common.desktopmode;
+
+parcelable DesktopModeTransitionSource;
\ No newline at end of file
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/common/desktopmode/DesktopModeTransitionSource.kt b/libs/WindowManager/Shell/src/com/android/wm/shell/common/desktopmode/DesktopModeTransitionSource.kt
new file mode 100644
index 0000000..dbbf1786
--- /dev/null
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/common/desktopmode/DesktopModeTransitionSource.kt
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.wm.shell.common.desktopmode
+
+import android.os.Parcel
+import android.os.Parcelable
+
+/** Transition source types for Desktop Mode. */
+enum class DesktopModeTransitionSource : Parcelable {
+    /** Transitions that originated as a consequence of task dragging. */
+    TASK_DRAG,
+    /** Transitions that originated from an app from Overview. */
+    APP_FROM_OVERVIEW,
+    /** Transitions that originated from app handle menu button */
+    APP_HANDLE_MENU_BUTTON,
+    /** Transitions that originated as a result of keyboard shortcuts. */
+    KEYBOARD_SHORTCUT,
+    /** Transitions with source unknown. */
+    UNKNOWN;
+
+    override fun describeContents(): Int {
+        return 0
+    }
+
+    override fun writeToParcel(dest: Parcel, flags: Int) {
+        dest.writeString(name)
+    }
+
+    companion object {
+        @JvmField
+        val CREATOR =
+            object : Parcelable.Creator<DesktopModeTransitionSource> {
+                override fun createFromParcel(parcel: Parcel): DesktopModeTransitionSource {
+                    return parcel.readString()?.let { valueOf(it) } ?: UNKNOWN
+                }
+
+                override fun newArray(size: Int) = arrayOfNulls<DesktopModeTransitionSource>(size)
+            }
+    }
+}
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopMode.java b/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopMode.java
index df1b062..31c8f1e 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopMode.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopMode.java
@@ -18,6 +18,7 @@
 
 import android.graphics.Region;
 
+import com.android.wm.shell.common.desktopmode.DesktopModeTransitionSource;
 import com.android.wm.shell.shared.annotations.ExternalThread;
 
 import java.util.concurrent.Executor;
@@ -49,10 +50,10 @@
 
 
     /** Called when requested to go to desktop mode from the current focused app. */
-    void moveFocusedTaskToDesktop(int displayId);
+    void moveFocusedTaskToDesktop(int displayId, DesktopModeTransitionSource transitionSource);
 
     /** Called when requested to go to fullscreen from the current focused desktop app. */
-    void moveFocusedTaskToFullscreen(int displayId);
+    void moveFocusedTaskToFullscreen(int displayId, DesktopModeTransitionSource transitionSource);
 
     /** Called when requested to go to split screen from the current focused desktop app. */
     void moveFocusedTaskToStageSplit(int displayId, boolean leftOrTop);
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopModeLoggerTransitionObserver.kt b/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopModeLoggerTransitionObserver.kt
index 5d8e340..075e3ae 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopModeLoggerTransitionObserver.kt
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopModeLoggerTransitionObserver.kt
@@ -38,6 +38,12 @@
 import com.android.wm.shell.desktopmode.DesktopModeEventLogger.Companion.EnterReason
 import com.android.wm.shell.desktopmode.DesktopModeEventLogger.Companion.ExitReason
 import com.android.wm.shell.desktopmode.DesktopModeEventLogger.Companion.TaskUpdate
+import com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.TRANSIT_EXIT_DESKTOP_MODE_HANDLE_MENU_BUTTON
+import com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.TRANSIT_EXIT_DESKTOP_MODE_KEYBOARD_SHORTCUT
+import com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.TRANSIT_EXIT_DESKTOP_MODE_TASK_DRAG
+import com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.TRANSIT_ENTER_DESKTOP_FROM_APP_FROM_OVERVIEW
+import com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.TRANSIT_ENTER_DESKTOP_FROM_APP_HANDLE_MENU_BUTTON
+import com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.TRANSIT_ENTER_DESKTOP_FROM_KEYBOARD_SHORTCUT
 import com.android.wm.shell.protolog.ShellProtoLogGroup.WM_SHELL_DESKTOP_MODE
 import com.android.wm.shell.shared.DesktopModeStatus
 import com.android.wm.shell.shared.TransitionUtil
@@ -304,11 +310,13 @@
 
     /** Get [EnterReason] for this session enter */
     private fun getEnterReason(transitionInfo: TransitionInfo): EnterReason {
-        // TODO(b/326231756) - Add support for missing enter reasons
         return when (transitionInfo.type) {
             WindowManager.TRANSIT_WAKE -> EnterReason.SCREEN_ON
             Transitions.TRANSIT_DESKTOP_MODE_END_DRAG_TO_DESKTOP -> EnterReason.APP_HANDLE_DRAG
-            Transitions.TRANSIT_MOVE_TO_DESKTOP -> EnterReason.APP_HANDLE_MENU_BUTTON
+            TRANSIT_ENTER_DESKTOP_FROM_APP_HANDLE_MENU_BUTTON -> EnterReason.APP_HANDLE_MENU_BUTTON
+            // TODO(b/344822506): Create and update EnterReason to APP_FROM_OVERVIEW
+            TRANSIT_ENTER_DESKTOP_FROM_APP_FROM_OVERVIEW -> EnterReason.UNKNOWN_ENTER
+            TRANSIT_ENTER_DESKTOP_FROM_KEYBOARD_SHORTCUT -> EnterReason.KEYBOARD_SHORTCUT_ENTER
             WindowManager.TRANSIT_OPEN -> EnterReason.APP_FREEFORM_INTENT
             else -> EnterReason.UNKNOWN_ENTER
         }
@@ -316,11 +324,14 @@
 
     /** Get [ExitReason] for this session exit */
     private fun getExitReason(transitionInfo: TransitionInfo): ExitReason {
-        // TODO(b/326231756) - Add support for missing exit reasons
         return when {
             transitionInfo.type == WindowManager.TRANSIT_SLEEP -> ExitReason.SCREEN_OFF
             transitionInfo.type == WindowManager.TRANSIT_CLOSE -> ExitReason.TASK_FINISHED
-            transitionInfo.type == Transitions.TRANSIT_EXIT_DESKTOP_MODE -> ExitReason.DRAG_TO_EXIT
+            transitionInfo.type == TRANSIT_EXIT_DESKTOP_MODE_TASK_DRAG -> ExitReason.DRAG_TO_EXIT
+            transitionInfo.type == TRANSIT_EXIT_DESKTOP_MODE_HANDLE_MENU_BUTTON ->
+                ExitReason.APP_HANDLE_MENU_BUTTON_EXIT
+            transitionInfo.type == TRANSIT_EXIT_DESKTOP_MODE_KEYBOARD_SHORTCUT ->
+                ExitReason.KEYBOARD_SHORTCUT_EXIT
             transitionInfo.isRecentsTransition() -> ExitReason.RETURN_HOME_OR_OVERVIEW
             else -> ExitReason.UNKNOWN_EXIT
         }
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopModeShellCommandHandler.kt b/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopModeShellCommandHandler.kt
index bc27f34..1a6ca0e 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopModeShellCommandHandler.kt
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopModeShellCommandHandler.kt
@@ -16,7 +16,7 @@
 
 package com.android.wm.shell.desktopmode
 
-import android.window.WindowContainerTransaction
+import com.android.wm.shell.common.desktopmode.DesktopModeTransitionSource.UNKNOWN
 import com.android.wm.shell.sysui.ShellCommandHandler
 import java.io.PrintWriter
 
@@ -64,7 +64,7 @@
                 return false
             }
 
-        return controller.moveToDesktop(taskId, WindowContainerTransaction())
+        return controller.moveToDesktop(taskId, transitionSource = UNKNOWN)
     }
 
     private fun runMoveToNextDisplay(args: Array<String>, pw: PrintWriter): Boolean {
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopModeTransitionTypes.kt b/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopModeTransitionTypes.kt
new file mode 100644
index 0000000..b24bd10
--- /dev/null
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopModeTransitionTypes.kt
@@ -0,0 +1,95 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.wm.shell.desktopmode
+
+import android.view.WindowManager.TransitionType
+import com.android.wm.shell.common.desktopmode.DesktopModeTransitionSource
+import com.android.wm.shell.transition.Transitions.TRANSIT_DESKTOP_MODE_TYPES
+
+/**
+ * Contains desktop mode [TransitionType]s (extended from [TRANSIT_DESKTOP_MODE_TYPES]) and helper
+ * methods.
+ */
+object DesktopModeTransitionTypes {
+
+    const val TRANSIT_ENTER_DESKTOP_FROM_APP_HANDLE_MENU_BUTTON = TRANSIT_DESKTOP_MODE_TYPES + 1
+    const val TRANSIT_ENTER_DESKTOP_FROM_APP_FROM_OVERVIEW = TRANSIT_DESKTOP_MODE_TYPES + 2
+    const val TRANSIT_ENTER_DESKTOP_FROM_KEYBOARD_SHORTCUT = TRANSIT_DESKTOP_MODE_TYPES + 3
+    const val TRANSIT_ENTER_DESKTOP_FROM_UNKNOWN = TRANSIT_DESKTOP_MODE_TYPES + 4
+    const val TRANSIT_EXIT_DESKTOP_MODE_TASK_DRAG = TRANSIT_DESKTOP_MODE_TYPES + 5
+    const val TRANSIT_EXIT_DESKTOP_MODE_HANDLE_MENU_BUTTON = TRANSIT_DESKTOP_MODE_TYPES + 6
+    const val TRANSIT_EXIT_DESKTOP_MODE_KEYBOARD_SHORTCUT = TRANSIT_DESKTOP_MODE_TYPES + 7
+    const val TRANSIT_EXIT_DESKTOP_MODE_UNKNOWN = TRANSIT_DESKTOP_MODE_TYPES + 8
+
+    /** Return whether the [TransitionType] corresponds to a transition to enter desktop mode. */
+    @JvmStatic
+    fun @receiver:TransitionType Int.isEnterDesktopModeTransition(): Boolean {
+        return this in
+            listOf(
+                TRANSIT_ENTER_DESKTOP_FROM_APP_HANDLE_MENU_BUTTON,
+                TRANSIT_ENTER_DESKTOP_FROM_APP_FROM_OVERVIEW,
+                TRANSIT_ENTER_DESKTOP_FROM_KEYBOARD_SHORTCUT,
+                TRANSIT_ENTER_DESKTOP_FROM_UNKNOWN
+            )
+    }
+
+    /**
+     * Returns corresponding desktop mode enter [TransitionType] for a
+     * [DesktopModeTransitionSource].
+     */
+    @JvmStatic
+    @TransitionType
+    fun DesktopModeTransitionSource.getEnterTransitionType(): Int {
+        return when (this) {
+            DesktopModeTransitionSource.APP_HANDLE_MENU_BUTTON ->
+                TRANSIT_ENTER_DESKTOP_FROM_APP_HANDLE_MENU_BUTTON
+            DesktopModeTransitionSource.APP_FROM_OVERVIEW ->
+                TRANSIT_ENTER_DESKTOP_FROM_APP_FROM_OVERVIEW
+            DesktopModeTransitionSource.KEYBOARD_SHORTCUT ->
+                TRANSIT_ENTER_DESKTOP_FROM_KEYBOARD_SHORTCUT
+            else -> TRANSIT_ENTER_DESKTOP_FROM_UNKNOWN
+        }
+    }
+
+    /** Return whether the [TransitionType] corresponds to a transition to exit desktop mode. */
+    @JvmStatic
+    fun @receiver:TransitionType Int.isExitDesktopModeTransition(): Boolean {
+        return this in
+            listOf(
+                TRANSIT_EXIT_DESKTOP_MODE_TASK_DRAG,
+                TRANSIT_EXIT_DESKTOP_MODE_HANDLE_MENU_BUTTON,
+                TRANSIT_EXIT_DESKTOP_MODE_KEYBOARD_SHORTCUT,
+                TRANSIT_EXIT_DESKTOP_MODE_UNKNOWN
+            )
+    }
+
+    /**
+     * Returns corresponding desktop mode exit [TransitionType] for a [DesktopModeTransitionSource].
+     */
+    @JvmStatic
+    @TransitionType
+    fun DesktopModeTransitionSource.getExitTransitionType(): Int {
+        return when (this) {
+            DesktopModeTransitionSource.TASK_DRAG -> TRANSIT_EXIT_DESKTOP_MODE_TASK_DRAG
+            DesktopModeTransitionSource.APP_HANDLE_MENU_BUTTON ->
+                TRANSIT_EXIT_DESKTOP_MODE_HANDLE_MENU_BUTTON
+            DesktopModeTransitionSource.KEYBOARD_SHORTCUT ->
+                TRANSIT_EXIT_DESKTOP_MODE_KEYBOARD_SHORTCUT
+            else -> TRANSIT_EXIT_DESKTOP_MODE_UNKNOWN
+        }
+    }
+}
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopTasksController.kt b/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopTasksController.kt
index c9c6bcb..94931fe 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopTasksController.kt
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/DesktopTasksController.kt
@@ -63,6 +63,7 @@
 import com.android.wm.shell.common.ShellExecutor
 import com.android.wm.shell.common.SingleInstanceRemoteListener
 import com.android.wm.shell.common.SyncTransactionQueue
+import com.android.wm.shell.common.desktopmode.DesktopModeTransitionSource
 import com.android.wm.shell.common.split.SplitScreenConstants.SPLIT_POSITION_BOTTOM_OR_RIGHT
 import com.android.wm.shell.common.split.SplitScreenConstants.SPLIT_POSITION_TOP_OR_LEFT
 import com.android.wm.shell.compatui.isSingleTopActivityTranslucent
@@ -253,7 +254,7 @@
     }
 
     /** Enter desktop by using the focused task in given `displayId` */
-    fun moveFocusedTaskToDesktop(displayId: Int) {
+    fun moveFocusedTaskToDesktop(displayId: Int, transitionSource: DesktopModeTransitionSource) {
         val allFocusedTasks =
             shellTaskOrganizer.getRunningTasks(displayId).filter { taskInfo ->
                 taskInfo.isFocused &&
@@ -272,11 +273,11 @@
                         } else {
                             allFocusedTasks[0]
                         }
-                    moveToDesktop(splitFocusedTask)
+                    moveToDesktop(splitFocusedTask, transitionSource = transitionSource)
                 }
                 1 -> {
                     // Fullscreen case where we move the current focused task.
-                    moveToDesktop(allFocusedTasks[0].taskId)
+                    moveToDesktop(allFocusedTasks[0].taskId, transitionSource = transitionSource)
                 }
                 else -> {
                     KtProtoLog.w(
@@ -293,17 +294,20 @@
     /** Move a task with given `taskId` to desktop */
     fun moveToDesktop(
         taskId: Int,
-        wct: WindowContainerTransaction = WindowContainerTransaction()
+        wct: WindowContainerTransaction = WindowContainerTransaction(),
+        transitionSource: DesktopModeTransitionSource,
     ): Boolean {
         shellTaskOrganizer.getRunningTaskInfo(taskId)?.let {
-            moveToDesktop(it, wct)
-        } ?: moveToDesktopFromNonRunningTask(taskId, wct)
+            moveToDesktop(it, wct, transitionSource)
+        }
+            ?: moveToDesktopFromNonRunningTask(taskId, wct, transitionSource)
         return true
     }
 
     private fun moveToDesktopFromNonRunningTask(
         taskId: Int,
-        wct: WindowContainerTransaction
+        wct: WindowContainerTransaction,
+        transitionSource: DesktopModeTransitionSource,
     ): Boolean {
         recentTasksController?.findTaskInBackground(taskId)?.let {
             KtProtoLog.v(
@@ -316,10 +320,11 @@
                 bringDesktopAppsToFrontBeforeShowingNewTask(DEFAULT_DISPLAY, wct, taskId)
             addMoveToDesktopChangesNonRunningTask(wct, taskId)
             // TODO(343149901): Add DPI changes for task launch
-            val transition = enterDesktopTaskTransitionHandler.moveToDesktop(wct)
+            val transition = enterDesktopTaskTransitionHandler.moveToDesktop(wct, transitionSource)
             addPendingMinimizeTransition(transition, taskToMinimize)
             return true
-        } ?: return false
+        }
+            ?: return false
     }
 
     private fun addMoveToDesktopChangesNonRunningTask(
@@ -331,12 +336,11 @@
         wct.startTask(taskId, options.toBundle())
     }
 
-    /**
-     * Move a task to desktop
-     */
+    /** Move a task to desktop */
     fun moveToDesktop(
         task: RunningTaskInfo,
-        wct: WindowContainerTransaction = WindowContainerTransaction()
+        wct: WindowContainerTransaction = WindowContainerTransaction(),
+        transitionSource: DesktopModeTransitionSource,
     ) {
         if (Flags.enableDesktopWindowingModalsPolicy() && isSingleTopActivityTranslucent(task)) {
             KtProtoLog.w(
@@ -358,7 +362,7 @@
         addMoveToDesktopChanges(wct, task)
 
         if (Transitions.ENABLE_SHELL_TRANSITIONS) {
-            val transition = enterDesktopTaskTransitionHandler.moveToDesktop(wct)
+            val transition = enterDesktopTaskTransitionHandler.moveToDesktop(wct, transitionSource)
             addPendingMinimizeTransition(transition, taskToMinimize)
         } else {
             shellTaskOrganizer.applyTransaction(wct)
@@ -433,16 +437,16 @@
     }
 
     /** Move a task with given `taskId` to fullscreen */
-    fun moveToFullscreen(taskId: Int) {
+    fun moveToFullscreen(taskId: Int, transitionSource: DesktopModeTransitionSource) {
         shellTaskOrganizer.getRunningTaskInfo(taskId)?.let { task ->
-            moveToFullscreenWithAnimation(task, task.positionInParent)
+            moveToFullscreenWithAnimation(task, task.positionInParent, transitionSource)
         }
     }
 
     /** Enter fullscreen by moving the focused freeform task in given `displayId` to fullscreen. */
-    fun enterFullscreen(displayId: Int) {
+    fun enterFullscreen(displayId: Int, transitionSource: DesktopModeTransitionSource) {
         getFocusedFreeformTask(displayId)?.let {
-            moveToFullscreenWithAnimation(it, it.positionInParent)
+            moveToFullscreenWithAnimation(it, it.positionInParent, transitionSource)
         }
     }
 
@@ -491,7 +495,11 @@
         )
     }
 
-    private fun moveToFullscreenWithAnimation(task: RunningTaskInfo, position: Point) {
+    private fun moveToFullscreenWithAnimation(
+        task: RunningTaskInfo,
+        position: Point,
+        transitionSource: DesktopModeTransitionSource
+    ) {
         KtProtoLog.v(
             WM_SHELL_DESKTOP_MODE,
             "DesktopTasksController: moveToFullscreen with animation taskId=%d",
@@ -502,7 +510,7 @@
 
         if (Transitions.ENABLE_SHELL_TRANSITIONS) {
             exitDesktopTaskTransitionHandler.startTransition(
-                Transitions.TRANSIT_EXIT_DESKTOP_MODE,
+                transitionSource,
                 wct,
                 position,
                 mOnAnimationFinishedCallback
@@ -932,7 +940,8 @@
             request.type == TRANSIT_TO_BACK &&
             request.triggerTask?.let { task ->
                 desktopModeTaskRepository.isOnlyActiveTask(task.taskId)
-            } ?: false
+            }
+                ?: false
     }
 
     private fun handleFreeformTaskLaunch(
@@ -1220,7 +1229,11 @@
             )
         when (indicatorType) {
             DesktopModeVisualIndicator.IndicatorType.TO_FULLSCREEN_INDICATOR -> {
-                moveToFullscreenWithAnimation(taskInfo, position)
+                moveToFullscreenWithAnimation(
+                    taskInfo,
+                    position,
+                    DesktopModeTransitionSource.TASK_DRAG
+                )
             }
             DesktopModeVisualIndicator.IndicatorType.TO_SPLIT_LEFT_INDICATOR -> {
                 releaseVisualIndicator()
@@ -1392,12 +1405,22 @@
             }
         }
 
-        override fun moveFocusedTaskToDesktop(displayId: Int) {
-            mainExecutor.execute { this@DesktopTasksController.moveFocusedTaskToDesktop(displayId) }
+        override fun moveFocusedTaskToDesktop(
+            displayId: Int,
+            transitionSource: DesktopModeTransitionSource
+        ) {
+            mainExecutor.execute {
+                this@DesktopTasksController.moveFocusedTaskToDesktop(displayId, transitionSource)
+            }
         }
 
-        override fun moveFocusedTaskToFullscreen(displayId: Int) {
-            mainExecutor.execute { this@DesktopTasksController.enterFullscreen(displayId) }
+        override fun moveFocusedTaskToFullscreen(
+            displayId: Int,
+            transitionSource: DesktopModeTransitionSource
+        ) {
+            mainExecutor.execute {
+                this@DesktopTasksController.enterFullscreen(displayId, transitionSource)
+            }
         }
 
         override fun moveFocusedTaskToStageSplit(displayId: Int, leftOrTop: Boolean) {
@@ -1502,9 +1525,9 @@
             }
         }
 
-        override fun moveToDesktop(taskId: Int) {
+        override fun moveToDesktop(taskId: Int, transitionSource: DesktopModeTransitionSource) {
             ExecutorUtils.executeRemoteCallWithTaskPermission(controller, "moveToDesktop") { c ->
-                c.moveToDesktop(taskId)
+                c.moveToDesktop(taskId, transitionSource = transitionSource)
             }
         }
     }
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/EnterDesktopTaskTransitionHandler.java b/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/EnterDesktopTaskTransitionHandler.java
index 526cf4d..e5b624f 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/EnterDesktopTaskTransitionHandler.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/EnterDesktopTaskTransitionHandler.java
@@ -18,7 +18,8 @@
 
 import static android.app.WindowConfiguration.WINDOWING_MODE_FREEFORM;
 
-import static com.android.wm.shell.transition.Transitions.TRANSIT_MOVE_TO_DESKTOP;
+import static com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.getEnterTransitionType;
+import static com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.isEnterDesktopModeTransition;
 
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
@@ -30,6 +31,7 @@
 import android.util.Slog;
 import android.view.SurfaceControl;
 import android.view.WindowManager;
+import android.view.WindowManager.TransitionType;
 import android.window.TransitionInfo;
 import android.window.TransitionRequestInfo;
 import android.window.WindowContainerTransaction;
@@ -37,6 +39,7 @@
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 
+import com.android.wm.shell.common.desktopmode.DesktopModeTransitionSource;
 import com.android.wm.shell.transition.Transitions;
 import com.android.wm.shell.windowdecor.OnTaskResizeAnimationListener;
 
@@ -82,8 +85,12 @@
      * @param wct WindowContainerTransaction for transition
      * @return the token representing the started transition
      */
-    public IBinder moveToDesktop(@NonNull WindowContainerTransaction wct) {
-        final IBinder token = mTransitions.startTransition(TRANSIT_MOVE_TO_DESKTOP, wct, this);
+    public IBinder moveToDesktop(
+            @NonNull WindowContainerTransaction wct,
+            DesktopModeTransitionSource transitionSource
+    ) {
+        final IBinder token = mTransitions.startTransition(getEnterTransitionType(transitionSource),
+                wct, this);
         mPendingTransitionTokens.add(token);
         return token;
     }
@@ -117,7 +124,7 @@
 
     private boolean startChangeTransition(
             @NonNull IBinder transition,
-            @WindowManager.TransitionType int type,
+            @TransitionType int type,
             @NonNull TransitionInfo.Change change,
             @NonNull SurfaceControl.Transaction startT,
             @NonNull SurfaceControl.Transaction finishT,
@@ -127,7 +134,7 @@
         }
 
         final ActivityManager.RunningTaskInfo taskInfo = change.getTaskInfo();
-        if (type == TRANSIT_MOVE_TO_DESKTOP
+        if (isEnterDesktopModeTransition(type)
                 && taskInfo.getWindowingMode() == WINDOWING_MODE_FREEFORM) {
             return animateMoveToDesktop(change, startT, finishCallback);
         }
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/ExitDesktopTaskTransitionHandler.java b/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/ExitDesktopTaskTransitionHandler.java
index 9f9e256..891f75c 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/ExitDesktopTaskTransitionHandler.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/ExitDesktopTaskTransitionHandler.java
@@ -18,6 +18,9 @@
 
 import static android.app.WindowConfiguration.WINDOWING_MODE_FULLSCREEN;
 
+import static com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.getExitTransitionType;
+import static com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.isExitDesktopModeTransition;
+
 import android.animation.Animator;
 import android.animation.AnimatorListenerAdapter;
 import android.animation.ValueAnimator;
@@ -30,6 +33,7 @@
 import android.util.DisplayMetrics;
 import android.view.SurfaceControl;
 import android.view.WindowManager;
+import android.view.WindowManager.TransitionType;
 import android.window.TransitionInfo;
 import android.window.TransitionRequestInfo;
 import android.window.WindowContainerTransaction;
@@ -38,6 +42,7 @@
 import androidx.annotation.Nullable;
 
 import com.android.internal.annotations.VisibleForTesting;
+import com.android.wm.shell.common.desktopmode.DesktopModeTransitionSource;
 import com.android.wm.shell.transition.Transitions;
 
 import java.util.ArrayList;
@@ -52,6 +57,7 @@
  */
 public class ExitDesktopTaskTransitionHandler implements Transitions.TransitionHandler {
     private static final int FULLSCREEN_ANIMATION_DURATION = 336;
+
     private final Context mContext;
     private final Transitions mTransitions;
     private final List<IBinder> mPendingTransitionTokens = new ArrayList<>();
@@ -77,17 +83,18 @@
     /**
      * Starts Transition of a given type
      *
-     * @param type                   Transition type
+     * @param transitionSource       DesktopModeTransitionSource for transition
      * @param wct                    WindowContainerTransaction for transition
      * @param position               Position of the task when transition is started
      * @param onAnimationEndCallback to be called after animation
      */
-    public void startTransition(@WindowManager.TransitionType int type,
+    public void startTransition(@NonNull DesktopModeTransitionSource transitionSource,
             @NonNull WindowContainerTransaction wct, Point position,
             Consumer<SurfaceControl.Transaction> onAnimationEndCallback) {
         mPosition = position;
         mOnAnimationFinishedCallback = onAnimationEndCallback;
-        final IBinder token = mTransitions.startTransition(type, wct, this);
+        final IBinder token = mTransitions.startTransition(getExitTransitionType(transitionSource),
+                wct, this);
         mPendingTransitionTokens.add(token);
     }
 
@@ -121,7 +128,7 @@
     @VisibleForTesting
     boolean startChangeTransition(
             @NonNull IBinder transition,
-            @WindowManager.TransitionType int type,
+            @TransitionType int type,
             @NonNull TransitionInfo.Change change,
             @NonNull SurfaceControl.Transaction startT,
             @NonNull SurfaceControl.Transaction finishT,
@@ -130,7 +137,7 @@
             return false;
         }
         final ActivityManager.RunningTaskInfo taskInfo = change.getTaskInfo();
-        if (type == Transitions.TRANSIT_EXIT_DESKTOP_MODE
+        if (isExitDesktopModeTransition(type)
                 && taskInfo.getWindowingMode() == WINDOWING_MODE_FULLSCREEN) {
             // This Transition animates a task to fullscreen after being dragged to status bar
             final Resources resources = mContext.getResources();
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/IDesktopMode.aidl b/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/IDesktopMode.aidl
index c36f8de..a7ec203 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/IDesktopMode.aidl
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/desktopmode/IDesktopMode.aidl
@@ -18,6 +18,7 @@
 
 import android.app.ActivityManager.RunningTaskInfo;
 import android.window.RemoteTransition;
+import com.android.wm.shell.common.desktopmode.DesktopModeTransitionSource;
 import com.android.wm.shell.desktopmode.IDesktopTaskListener;
 
 /**
@@ -47,5 +48,5 @@
     oneway void setTaskListener(IDesktopTaskListener listener);
 
     /** Move a task with given `taskId` to desktop */
-    void moveToDesktop(int taskId);
+    void moveToDesktop(int taskId, in DesktopModeTransitionSource transitionSource);
 }
\ No newline at end of file
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/transition/Transitions.java b/libs/WindowManager/Shell/src/com/android/wm/shell/transition/Transitions.java
index 6ade81c..65fda97 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/transition/Transitions.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/transition/Transitions.java
@@ -166,9 +166,6 @@
     public static final int TRANSIT_DESKTOP_MODE_END_DRAG_TO_DESKTOP =
             WindowManager.TRANSIT_FIRST_CUSTOM + 11;
 
-    /** Transition type to fullscreen from desktop mode. */
-    public static final int TRANSIT_EXIT_DESKTOP_MODE = WindowManager.TRANSIT_FIRST_CUSTOM + 12;
-
     /** Transition type to cancel the drag to desktop mode. */
     public static final int TRANSIT_DESKTOP_MODE_CANCEL_DRAG_TO_DESKTOP =
             WindowManager.TRANSIT_FIRST_CUSTOM + 13;
@@ -177,9 +174,6 @@
     public static final int TRANSIT_DESKTOP_MODE_TOGGLE_RESIZE =
             WindowManager.TRANSIT_FIRST_CUSTOM + 14;
 
-    /** Transition to animate task to desktop. */
-    public static final int TRANSIT_MOVE_TO_DESKTOP = WindowManager.TRANSIT_FIRST_CUSTOM + 15;
-
     /** Transition to resize PiP task. */
     public static final int TRANSIT_RESIZE_PIP = TRANSIT_FIRST_CUSTOM + 16;
 
@@ -190,6 +184,10 @@
             // TRANSIT_FIRST_CUSTOM + 17
             TaskFragmentOrganizer.TASK_FRAGMENT_TRANSIT_DRAG_RESIZE;
 
+    /** Transition type for desktop mode transitions. */
+    public static final int TRANSIT_DESKTOP_MODE_TYPES =
+            WindowManager.TRANSIT_FIRST_CUSTOM + 100;
+
     private final ShellTaskOrganizer mOrganizer;
     private final Context mContext;
     private final ShellExecutor mMainExecutor;
diff --git a/libs/WindowManager/Shell/src/com/android/wm/shell/windowdecor/DesktopModeWindowDecorViewModel.java b/libs/WindowManager/Shell/src/com/android/wm/shell/windowdecor/DesktopModeWindowDecorViewModel.java
index 37cdbb4..d452428 100644
--- a/libs/WindowManager/Shell/src/com/android/wm/shell/windowdecor/DesktopModeWindowDecorViewModel.java
+++ b/libs/WindowManager/Shell/src/com/android/wm/shell/windowdecor/DesktopModeWindowDecorViewModel.java
@@ -83,6 +83,7 @@
 import com.android.wm.shell.common.DisplayLayout;
 import com.android.wm.shell.common.ShellExecutor;
 import com.android.wm.shell.common.SyncTransactionQueue;
+import com.android.wm.shell.common.desktopmode.DesktopModeTransitionSource;
 import com.android.wm.shell.common.split.SplitScreenConstants.SplitPosition;
 import com.android.wm.shell.desktopmode.DesktopModeVisualIndicator;
 import com.android.wm.shell.desktopmode.DesktopTasksController;
@@ -447,7 +448,8 @@
                 // App sometimes draws before the insets from WindowDecoration#relayout have
                 // been added, so they must be added here
                 mWindowDecorByTaskId.get(mTaskId).addCaptionInset(wct);
-                mDesktopTasksController.moveToDesktop(mTaskId, wct);
+                mDesktopTasksController.moveToDesktop(mTaskId, wct,
+                        DesktopModeTransitionSource.APP_HANDLE_MENU_BUTTON);
                 decoration.closeHandleMenu();
             } else if (id == R.id.fullscreen_button) {
                 decoration.closeHandleMenu();
@@ -455,7 +457,8 @@
                     mSplitScreenController.moveTaskToFullscreen(mTaskId,
                             SplitScreenController.EXIT_REASON_DESKTOP_MODE);
                 } else {
-                    mDesktopTasksController.moveToFullscreen(mTaskId);
+                    mDesktopTasksController.moveToFullscreen(mTaskId,
+                            DesktopModeTransitionSource.APP_HANDLE_MENU_BUTTON);
                 }
             } else if (id == R.id.split_screen_button) {
                 decoration.closeHandleMenu();
diff --git a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/desktopmode/DesktopModeLoggerTransitionObserverTest.kt b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/desktopmode/DesktopModeLoggerTransitionObserverTest.kt
index 2a2483d..7122181 100644
--- a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/desktopmode/DesktopModeLoggerTransitionObserverTest.kt
+++ b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/desktopmode/DesktopModeLoggerTransitionObserverTest.kt
@@ -22,7 +22,6 @@
 import android.os.IBinder
 import android.testing.AndroidTestingRunner
 import android.view.SurfaceControl
-import android.view.WindowManager.TRANSIT_CHANGE
 import android.view.WindowManager.TRANSIT_CLOSE
 import android.view.WindowManager.TRANSIT_FLAG_IS_RECENTS
 import android.view.WindowManager.TRANSIT_NONE
@@ -41,6 +40,14 @@
 import com.android.wm.shell.common.ShellExecutor
 import com.android.wm.shell.desktopmode.DesktopModeEventLogger.Companion.EnterReason
 import com.android.wm.shell.desktopmode.DesktopModeEventLogger.Companion.ExitReason
+import com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.TRANSIT_EXIT_DESKTOP_MODE_HANDLE_MENU_BUTTON
+import com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.TRANSIT_EXIT_DESKTOP_MODE_KEYBOARD_SHORTCUT
+import com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.TRANSIT_EXIT_DESKTOP_MODE_TASK_DRAG
+import com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.TRANSIT_EXIT_DESKTOP_MODE_UNKNOWN
+import com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.TRANSIT_ENTER_DESKTOP_FROM_APP_FROM_OVERVIEW
+import com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.TRANSIT_ENTER_DESKTOP_FROM_APP_HANDLE_MENU_BUTTON
+import com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.TRANSIT_ENTER_DESKTOP_FROM_KEYBOARD_SHORTCUT
+import com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.TRANSIT_ENTER_DESKTOP_FROM_UNKNOWN
 import com.android.wm.shell.shared.DesktopModeStatus
 import com.android.wm.shell.sysui.ShellInit
 import com.android.wm.shell.transition.TransitionInfoBuilder
@@ -60,6 +67,7 @@
 import org.mockito.kotlin.never
 import org.mockito.kotlin.same
 import org.mockito.kotlin.times
+import org.mockito.kotlin.verifyZeroInteractions
 
 /**
  * Test class for {@link DesktopModeLoggerTransitionObserver}
@@ -72,18 +80,16 @@
 
     @JvmField
     @Rule
-    val extendedMockitoRule = ExtendedMockitoRule.Builder(this)
+    val extendedMockitoRule =
+        ExtendedMockitoRule.Builder(this)
             .mockStatic(DesktopModeEventLogger::class.java)
-            .mockStatic(DesktopModeStatus::class.java).build()!!
+            .mockStatic(DesktopModeStatus::class.java)
+            .build()!!
 
-    @Mock
-    lateinit var testExecutor: ShellExecutor
-    @Mock
-    private lateinit var mockShellInit: ShellInit
-    @Mock
-    private lateinit var transitions: Transitions
-    @Mock
-    private lateinit var context: Context
+    @Mock lateinit var testExecutor: ShellExecutor
+    @Mock private lateinit var mockShellInit: ShellInit
+    @Mock private lateinit var transitions: Transitions
+    @Mock private lateinit var context: Context
 
     private lateinit var transitionObserver: DesktopModeLoggerTransitionObserver
     private lateinit var shellInit: ShellInit
@@ -91,17 +97,21 @@
 
     @Before
     fun setup() {
-        doReturn(true).`when`{ DesktopModeStatus.canEnterDesktopMode(any()) }
+        doReturn(true).`when` { DesktopModeStatus.canEnterDesktopMode(any()) }
         shellInit = Mockito.spy(ShellInit(testExecutor))
         desktopModeEventLogger = mock(DesktopModeEventLogger::class.java)
 
-        transitionObserver = DesktopModeLoggerTransitionObserver(
-            context, mockShellInit, transitions, desktopModeEventLogger)
+        transitionObserver =
+            DesktopModeLoggerTransitionObserver(
+                context,
+                mockShellInit,
+                transitions,
+                desktopModeEventLogger
+            )
         if (Transitions.ENABLE_SHELL_TRANSITIONS) {
-            val initRunnableCaptor = ArgumentCaptor.forClass(
-                Runnable::class.java)
-            verify(mockShellInit).addInitCallback(initRunnableCaptor.capture(),
-                same(transitionObserver))
+            val initRunnableCaptor = ArgumentCaptor.forClass(Runnable::class.java)
+            verify(mockShellInit)
+                .addInitCallback(initRunnableCaptor.capture(), same(transitionObserver))
             initRunnableCaptor.value.run()
         } else {
             transitionObserver.onInit()
@@ -110,13 +120,11 @@
 
     @Test
     fun testRegistersObserverAtInit() {
-        verify(transitions)
-                .registerObserver(same(
-                    transitionObserver))
+        verify(transitions).registerObserver(same(transitionObserver))
     }
 
     @Test
-    fun taskCreated_notFreeformWindow_doesNotLogSessionEnterOrTaskAdded() {
+    fun transitOpen_notFreeformWindow_doesNotLogTaskAddedOrSessionEnter() {
         val change = createChange(TRANSIT_OPEN, createTaskInfo(1, WINDOWING_MODE_FULLSCREEN))
         val transitionInfo = TransitionInfoBuilder(TRANSIT_OPEN, 0).addChange(change).build()
 
@@ -127,7 +135,7 @@
     }
 
     @Test
-    fun taskCreated_FreeformWindowOpen_logSessionEnterAndTaskAdded() {
+    fun transitOpen_logTaskAddedAndEnterReasonAppFreeformIntent() {
         val change = createChange(TRANSIT_OPEN, createTaskInfo(1, WINDOWING_MODE_FREEFORM))
         val transitionInfo = TransitionInfoBuilder(TRANSIT_OPEN, 0).addChange(change).build()
 
@@ -135,76 +143,119 @@
         val sessionId = transitionObserver.getLoggerSessionId()
 
         assertThat(sessionId).isNotNull()
-        verify(desktopModeEventLogger, times(1)).logSessionEnter(eq(sessionId!!),
-            eq(EnterReason.APP_FREEFORM_INTENT))
+        verify(desktopModeEventLogger, times(1))
+            .logSessionEnter(eq(sessionId!!), eq(EnterReason.APP_FREEFORM_INTENT))
         verify(desktopModeEventLogger, times(1)).logTaskAdded(eq(sessionId), any())
+        verifyZeroInteractions(desktopModeEventLogger)
     }
 
     @Test
-    fun taskChanged_taskMovedToDesktopByDrag_logSessionEnterAndTaskAdded() {
+    fun transitEndDragToDesktop_logTaskAddedAndEnterReasonAppHandleDrag() {
         val change = createChange(TRANSIT_TO_FRONT, createTaskInfo(1, WINDOWING_MODE_FREEFORM))
         // task change is finalised when drag ends
-        val transitionInfo = TransitionInfoBuilder(
-            Transitions.TRANSIT_DESKTOP_MODE_END_DRAG_TO_DESKTOP, 0).addChange(change).build()
+        val transitionInfo =
+            TransitionInfoBuilder(Transitions.TRANSIT_DESKTOP_MODE_END_DRAG_TO_DESKTOP, 0)
+                .addChange(change)
+                .build()
 
         callOnTransitionReady(transitionInfo)
         val sessionId = transitionObserver.getLoggerSessionId()
 
         assertThat(sessionId).isNotNull()
-        verify(desktopModeEventLogger, times(1)).logSessionEnter(eq(sessionId!!),
-            eq(EnterReason.APP_HANDLE_DRAG))
+        verify(desktopModeEventLogger, times(1))
+            .logSessionEnter(eq(sessionId!!), eq(EnterReason.APP_HANDLE_DRAG))
         verify(desktopModeEventLogger, times(1)).logTaskAdded(eq(sessionId), any())
+        verifyZeroInteractions(desktopModeEventLogger)
     }
 
     @Test
-    fun taskChanged_taskMovedToDesktopByButtonTap_logSessionEnterAndTaskAdded() {
+    fun transitEnterDesktopByButtonTap_logTaskAddedAndEnterReasonButtonTap() {
         val change = createChange(TRANSIT_TO_FRONT, createTaskInfo(1, WINDOWING_MODE_FREEFORM))
-        val transitionInfo = TransitionInfoBuilder(Transitions.TRANSIT_MOVE_TO_DESKTOP, 0)
-                .addChange(change).build()
+        val transitionInfo =
+            TransitionInfoBuilder(TRANSIT_ENTER_DESKTOP_FROM_APP_HANDLE_MENU_BUTTON, 0)
+                .addChange(change)
+                .build()
 
         callOnTransitionReady(transitionInfo)
         val sessionId = transitionObserver.getLoggerSessionId()
 
         assertThat(sessionId).isNotNull()
-        verify(desktopModeEventLogger, times(1)).logSessionEnter(eq(sessionId!!),
-            eq(EnterReason.APP_HANDLE_MENU_BUTTON))
+        verify(desktopModeEventLogger, times(1))
+            .logSessionEnter(eq(sessionId!!), eq(EnterReason.APP_HANDLE_MENU_BUTTON))
         verify(desktopModeEventLogger, times(1)).logTaskAdded(eq(sessionId), any())
+        verifyZeroInteractions(desktopModeEventLogger)
     }
 
     @Test
-    fun taskChanged_existingFreeformTaskMadeVisible_logSessionEnterAndTaskAdded() {
-        val taskInfo = createTaskInfo(1, WINDOWING_MODE_FREEFORM)
-        taskInfo.isVisibleRequested = true
-        val change = createChange(TRANSIT_CHANGE, taskInfo)
-        val transitionInfo = TransitionInfoBuilder(Transitions.TRANSIT_MOVE_TO_DESKTOP, 0)
-                .addChange(change).build()
-
-        callOnTransitionReady(transitionInfo)
-        val sessionId = transitionObserver.getLoggerSessionId()
-
-        assertThat(sessionId).isNotNull()
-        verify(desktopModeEventLogger, times(1)).logSessionEnter(eq(sessionId!!),
-            eq(EnterReason.APP_HANDLE_MENU_BUTTON))
-        verify(desktopModeEventLogger, times(1)).logTaskAdded(eq(sessionId), any())
-    }
-
-    @Test
-    fun taskToFront_screenWake_logSessionStartedAndTaskAdded() {
+    // TODO(b/344822506): Update test when we add enter reason for app from overview
+    fun transitEnterDesktopFromAppFromOverview_logTaskAddedAndEnterReasonUnknown() {
         val change = createChange(TRANSIT_TO_FRONT, createTaskInfo(1, WINDOWING_MODE_FREEFORM))
-        val transitionInfo = TransitionInfoBuilder(TRANSIT_WAKE, 0)
-                .addChange(change).build()
+        val transitionInfo =
+            TransitionInfoBuilder(TRANSIT_ENTER_DESKTOP_FROM_APP_FROM_OVERVIEW, 0)
+                .addChange(change)
+                .build()
 
         callOnTransitionReady(transitionInfo)
         val sessionId = transitionObserver.getLoggerSessionId()
 
         assertThat(sessionId).isNotNull()
-        verify(desktopModeEventLogger, times(1)).logSessionEnter(eq(sessionId!!),
-            eq(EnterReason.SCREEN_ON))
+        verify(desktopModeEventLogger, times(1))
+            .logSessionEnter(eq(sessionId!!), eq(EnterReason.UNKNOWN_ENTER))
         verify(desktopModeEventLogger, times(1)).logTaskAdded(eq(sessionId), any())
+        verifyZeroInteractions(desktopModeEventLogger)
     }
 
     @Test
-    fun freeformTaskVisible_screenTurnOff_logSessionExitAndTaskRemoved_sessionIdNull() {
+    fun transitEnterDesktopFromKeyboardShortcut_logTaskAddedAndEnterReasonKeyboardShortcut() {
+        val change = createChange(TRANSIT_TO_FRONT, createTaskInfo(1, WINDOWING_MODE_FREEFORM))
+        val transitionInfo =
+            TransitionInfoBuilder(TRANSIT_ENTER_DESKTOP_FROM_KEYBOARD_SHORTCUT, 0)
+                .addChange(change)
+                .build()
+
+        callOnTransitionReady(transitionInfo)
+        val sessionId = transitionObserver.getLoggerSessionId()
+
+        assertThat(sessionId).isNotNull()
+        verify(desktopModeEventLogger, times(1))
+            .logSessionEnter(eq(sessionId!!), eq(EnterReason.KEYBOARD_SHORTCUT_ENTER))
+        verify(desktopModeEventLogger, times(1)).logTaskAdded(eq(sessionId), any())
+        verifyZeroInteractions(desktopModeEventLogger)
+    }
+
+    @Test
+    fun transitEnterDesktopFromUnknown_logTaskAddedAndEnterReasonUnknown() {
+        val change = createChange(TRANSIT_TO_FRONT, createTaskInfo(1, WINDOWING_MODE_FREEFORM))
+        val transitionInfo =
+            TransitionInfoBuilder(TRANSIT_ENTER_DESKTOP_FROM_UNKNOWN, 0).addChange(change).build()
+
+        callOnTransitionReady(transitionInfo)
+        val sessionId = transitionObserver.getLoggerSessionId()
+
+        assertThat(sessionId).isNotNull()
+        verify(desktopModeEventLogger, times(1))
+            .logSessionEnter(eq(sessionId!!), eq(EnterReason.UNKNOWN_ENTER))
+        verify(desktopModeEventLogger, times(1)).logTaskAdded(eq(sessionId), any())
+        verifyZeroInteractions(desktopModeEventLogger)
+    }
+
+    @Test
+    fun transitWake_logTaskAddedAndEnterReasonScreenOn() {
+        val change = createChange(TRANSIT_TO_FRONT, createTaskInfo(1, WINDOWING_MODE_FREEFORM))
+        val transitionInfo = TransitionInfoBuilder(TRANSIT_WAKE, 0).addChange(change).build()
+
+        callOnTransitionReady(transitionInfo)
+        val sessionId = transitionObserver.getLoggerSessionId()
+
+        assertThat(sessionId).isNotNull()
+        verify(desktopModeEventLogger, times(1))
+            .logSessionEnter(eq(sessionId!!), eq(EnterReason.SCREEN_ON))
+        verify(desktopModeEventLogger, times(1)).logTaskAdded(eq(sessionId), any())
+        verifyZeroInteractions(desktopModeEventLogger)
+    }
+
+    @Test
+    fun transitSleep_logTaskAddedAndExitReasonScreenOff_sessionIdNull() {
         val sessionId = 1
         // add a freeform task
         transitionObserver.addTaskInfosToCachedMap(createTaskInfo(1, WINDOWING_MODE_FREEFORM))
@@ -214,13 +265,14 @@
         callOnTransitionReady(transitionInfo)
 
         verify(desktopModeEventLogger, times(1)).logTaskRemoved(eq(sessionId), any())
-        verify(desktopModeEventLogger, times(1)).logSessionExit(eq(sessionId),
-            eq(ExitReason.SCREEN_OFF))
+        verify(desktopModeEventLogger, times(1))
+            .logSessionExit(eq(sessionId), eq(ExitReason.SCREEN_OFF))
+        verifyZeroInteractions(desktopModeEventLogger)
         assertThat(transitionObserver.getLoggerSessionId()).isNull()
     }
 
     @Test
-    fun freeformTaskVisible_exitDesktopUsingDrag_logSessionExitAndTaskRemoved_sessionIdNull() {
+    fun transitExitDesktopTaskDrag_logTaskRemovedAndExitReasonDragToExit_sessionIdNull() {
         val sessionId = 1
         // add a freeform task
         transitionObserver.addTaskInfosToCachedMap(createTaskInfo(1, WINDOWING_MODE_FREEFORM))
@@ -228,18 +280,83 @@
 
         // window mode changing from FREEFORM to FULLSCREEN
         val change = createChange(TRANSIT_TO_FRONT, createTaskInfo(1, WINDOWING_MODE_FULLSCREEN))
-        val transitionInfo = TransitionInfoBuilder(Transitions.TRANSIT_EXIT_DESKTOP_MODE)
-                .addChange(change).build()
+        val transitionInfo =
+            TransitionInfoBuilder(TRANSIT_EXIT_DESKTOP_MODE_TASK_DRAG).addChange(change).build()
         callOnTransitionReady(transitionInfo)
 
         verify(desktopModeEventLogger, times(1)).logTaskRemoved(eq(sessionId), any())
-        verify(desktopModeEventLogger, times(1)).logSessionExit(eq(sessionId),
-            eq(ExitReason.DRAG_TO_EXIT))
+        verify(desktopModeEventLogger, times(1))
+            .logSessionExit(eq(sessionId), eq(ExitReason.DRAG_TO_EXIT))
+        verifyZeroInteractions(desktopModeEventLogger)
         assertThat(transitionObserver.getLoggerSessionId()).isNull()
     }
 
     @Test
-    fun freeformTaskVisible_exitDesktopBySwipeUp_logSessionExitAndTaskRemoved_sessionIdNull() {
+    fun transitExitDesktopAppHandleButton_logTaskRemovedAndExitReasonButton_sessionIdNull() {
+        val sessionId = 1
+        // add a freeform task
+        transitionObserver.addTaskInfosToCachedMap(createTaskInfo(1, WINDOWING_MODE_FREEFORM))
+        transitionObserver.setLoggerSessionId(sessionId)
+
+        // window mode changing from FREEFORM to FULLSCREEN
+        val change = createChange(TRANSIT_TO_FRONT, createTaskInfo(1, WINDOWING_MODE_FULLSCREEN))
+        val transitionInfo =
+            TransitionInfoBuilder(TRANSIT_EXIT_DESKTOP_MODE_HANDLE_MENU_BUTTON)
+                .addChange(change)
+                .build()
+        callOnTransitionReady(transitionInfo)
+
+        verify(desktopModeEventLogger, times(1)).logTaskRemoved(eq(sessionId), any())
+        verify(desktopModeEventLogger, times(1))
+            .logSessionExit(eq(sessionId), eq(ExitReason.APP_HANDLE_MENU_BUTTON_EXIT))
+        verifyZeroInteractions(desktopModeEventLogger)
+        assertThat(transitionObserver.getLoggerSessionId()).isNull()
+    }
+
+    @Test
+    fun transitExitDesktopUsingKeyboard_logTaskRemovedAndExitReasonKeyboard_sessionIdNull() {
+        val sessionId = 1
+        // add a freeform task
+        transitionObserver.addTaskInfosToCachedMap(createTaskInfo(1, WINDOWING_MODE_FREEFORM))
+        transitionObserver.setLoggerSessionId(sessionId)
+
+        // window mode changing from FREEFORM to FULLSCREEN
+        val change = createChange(TRANSIT_TO_FRONT, createTaskInfo(1, WINDOWING_MODE_FULLSCREEN))
+        val transitionInfo =
+            TransitionInfoBuilder(TRANSIT_EXIT_DESKTOP_MODE_KEYBOARD_SHORTCUT)
+                .addChange(change)
+                .build()
+        callOnTransitionReady(transitionInfo)
+
+        verify(desktopModeEventLogger, times(1)).logTaskRemoved(eq(sessionId), any())
+        verify(desktopModeEventLogger, times(1))
+            .logSessionExit(eq(sessionId), eq(ExitReason.KEYBOARD_SHORTCUT_EXIT))
+        verifyZeroInteractions(desktopModeEventLogger)
+        assertThat(transitionObserver.getLoggerSessionId()).isNull()
+    }
+
+    @Test
+    fun transitExitDesktopUnknown_logTaskRemovedAndExitReasonUnknown_sessionIdNull() {
+        val sessionId = 1
+        // add a freeform task
+        transitionObserver.addTaskInfosToCachedMap(createTaskInfo(1, WINDOWING_MODE_FREEFORM))
+        transitionObserver.setLoggerSessionId(sessionId)
+
+        // window mode changing from FREEFORM to FULLSCREEN
+        val change = createChange(TRANSIT_TO_FRONT, createTaskInfo(1, WINDOWING_MODE_FULLSCREEN))
+        val transitionInfo =
+            TransitionInfoBuilder(TRANSIT_EXIT_DESKTOP_MODE_UNKNOWN).addChange(change).build()
+        callOnTransitionReady(transitionInfo)
+
+        verify(desktopModeEventLogger, times(1)).logTaskRemoved(eq(sessionId), any())
+        verify(desktopModeEventLogger, times(1))
+            .logSessionExit(eq(sessionId), eq(ExitReason.UNKNOWN_EXIT))
+        verifyZeroInteractions(desktopModeEventLogger)
+        assertThat(transitionObserver.getLoggerSessionId()).isNull()
+    }
+
+    @Test
+    fun transitToFrontWithFlagRecents_logTaskRemovedAndExitReasonOverview_sessionIdNull() {
         val sessionId = 1
         // add a freeform task
         transitionObserver.addTaskInfosToCachedMap(createTaskInfo(1, WINDOWING_MODE_FREEFORM))
@@ -247,18 +364,21 @@
 
         // recents transition
         val change = createChange(TRANSIT_TO_BACK, createTaskInfo(1, WINDOWING_MODE_FREEFORM))
-        val transitionInfo = TransitionInfoBuilder(TRANSIT_TO_FRONT, TRANSIT_FLAG_IS_RECENTS)
-                .addChange(change).build()
+        val transitionInfo =
+            TransitionInfoBuilder(TRANSIT_TO_FRONT, TRANSIT_FLAG_IS_RECENTS)
+                .addChange(change)
+                .build()
         callOnTransitionReady(transitionInfo)
 
         verify(desktopModeEventLogger, times(1)).logTaskRemoved(eq(sessionId), any())
-        verify(desktopModeEventLogger, times(1)).logSessionExit(eq(sessionId),
-            eq(ExitReason.RETURN_HOME_OR_OVERVIEW))
+        verify(desktopModeEventLogger, times(1))
+            .logSessionExit(eq(sessionId), eq(ExitReason.RETURN_HOME_OR_OVERVIEW))
+        verifyZeroInteractions(desktopModeEventLogger)
         assertThat(transitionObserver.getLoggerSessionId()).isNull()
     }
 
     @Test
-    fun freeformTaskVisible_taskFinished_logSessionExitAndTaskRemoved_sessionIdNull() {
+    fun transitClose_logTaskRemovedAndExitReasonTaskFinished_sessionIdNull() {
         val sessionId = 1
         // add a freeform task
         transitionObserver.addTaskInfosToCachedMap(createTaskInfo(1, WINDOWING_MODE_FREEFORM))
@@ -270,8 +390,9 @@
         callOnTransitionReady(transitionInfo)
 
         verify(desktopModeEventLogger, times(1)).logTaskRemoved(eq(sessionId), any())
-        verify(desktopModeEventLogger, times(1)).logSessionExit(eq(sessionId),
-            eq(ExitReason.TASK_FINISHED))
+        verify(desktopModeEventLogger, times(1))
+            .logSessionExit(eq(sessionId), eq(ExitReason.TASK_FINISHED))
+        verifyZeroInteractions(desktopModeEventLogger)
         assertThat(transitionObserver.getLoggerSessionId()).isNull()
     }
 
@@ -285,12 +406,13 @@
         // recents transition sent freeform window to back
         val change = createChange(TRANSIT_TO_BACK, createTaskInfo(1, WINDOWING_MODE_FREEFORM))
         val transitionInfo1 =
-            TransitionInfoBuilder(TRANSIT_TO_FRONT, TRANSIT_FLAG_IS_RECENTS).addChange(change)
-                    .build()
+            TransitionInfoBuilder(TRANSIT_TO_FRONT, TRANSIT_FLAG_IS_RECENTS)
+                .addChange(change)
+                .build()
         callOnTransitionReady(transitionInfo1)
         verify(desktopModeEventLogger, times(1)).logTaskRemoved(eq(sessionId), any())
-        verify(desktopModeEventLogger, times(1)).logSessionExit(eq(sessionId),
-            eq(ExitReason.RETURN_HOME_OR_OVERVIEW))
+        verify(desktopModeEventLogger, times(1))
+            .logSessionExit(eq(sessionId), eq(ExitReason.RETURN_HOME_OR_OVERVIEW))
         assertThat(transitionObserver.getLoggerSessionId()).isNull()
 
         val transitionInfo2 = TransitionInfoBuilder(TRANSIT_NONE).build()
@@ -333,15 +455,11 @@
         verify(desktopModeEventLogger, never()).logSessionExit(any(), any())
     }
 
-    /**
-     * Simulate calling the onTransitionReady() method
-     */
+    /** Simulate calling the onTransitionReady() method */
     private fun callOnTransitionReady(transitionInfo: TransitionInfo) {
         val transition = mock(IBinder::class.java)
-        val startT = mock(
-            SurfaceControl.Transaction::class.java)
-        val finishT = mock(
-            SurfaceControl.Transaction::class.java)
+        val startT = mock(SurfaceControl.Transaction::class.java)
+        val finishT = mock(SurfaceControl.Transaction::class.java)
 
         transitionObserver.onTransitionReady(transition, transitionInfo, startT, finishT)
     }
@@ -356,13 +474,14 @@
         }
 
         fun createChange(mode: Int, taskInfo: ActivityManager.RunningTaskInfo): Change {
-            val change = Change(
-                WindowContainerToken(mock(
-                    IWindowContainerToken::class.java)),
-                mock(SurfaceControl::class.java))
+            val change =
+                Change(
+                    WindowContainerToken(mock(IWindowContainerToken::class.java)),
+                    mock(SurfaceControl::class.java)
+                )
             change.mode = mode
             change.taskInfo = taskInfo
             return change
         }
     }
-}
\ No newline at end of file
+}
diff --git a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/desktopmode/DesktopModeTransitionTypesTest.kt b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/desktopmode/DesktopModeTransitionTypesTest.kt
new file mode 100644
index 0000000..518c00d
--- /dev/null
+++ b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/desktopmode/DesktopModeTransitionTypesTest.kt
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.wm.shell.desktopmode
+
+import android.testing.AndroidTestingRunner
+import androidx.test.filters.SmallTest
+import com.android.wm.shell.common.desktopmode.DesktopModeTransitionSource.APP_HANDLE_MENU_BUTTON
+import com.android.wm.shell.common.desktopmode.DesktopModeTransitionSource.APP_FROM_OVERVIEW
+import com.android.wm.shell.common.desktopmode.DesktopModeTransitionSource.KEYBOARD_SHORTCUT
+import com.android.wm.shell.common.desktopmode.DesktopModeTransitionSource.TASK_DRAG
+import com.android.wm.shell.common.desktopmode.DesktopModeTransitionSource.UNKNOWN
+import com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.TRANSIT_EXIT_DESKTOP_MODE_HANDLE_MENU_BUTTON
+import com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.TRANSIT_EXIT_DESKTOP_MODE_KEYBOARD_SHORTCUT
+import com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.TRANSIT_EXIT_DESKTOP_MODE_TASK_DRAG
+import com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.TRANSIT_EXIT_DESKTOP_MODE_UNKNOWN
+import com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.TRANSIT_ENTER_DESKTOP_FROM_APP_FROM_OVERVIEW
+import com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.TRANSIT_ENTER_DESKTOP_FROM_APP_HANDLE_MENU_BUTTON
+import com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.TRANSIT_ENTER_DESKTOP_FROM_KEYBOARD_SHORTCUT
+import com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.TRANSIT_ENTER_DESKTOP_FROM_UNKNOWN
+import com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.getEnterTransitionType
+import com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.getExitTransitionType
+import com.google.common.truth.Truth.assertThat
+import org.junit.Test
+import org.junit.runner.RunWith
+
+/**
+ * Test class for [DesktopModeTransitionTypes]
+ *
+ * Usage: atest WMShellUnitTests:DesktopModeTransitionTypesTest
+ */
+@SmallTest
+@RunWith(AndroidTestingRunner::class)
+class DesktopModeTransitionTypesTest {
+
+    @Test
+    fun testGetEnterTransitionType() {
+        assertThat(UNKNOWN.getEnterTransitionType()).isEqualTo(TRANSIT_ENTER_DESKTOP_FROM_UNKNOWN)
+        assertThat(APP_HANDLE_MENU_BUTTON.getEnterTransitionType())
+            .isEqualTo(TRANSIT_ENTER_DESKTOP_FROM_APP_HANDLE_MENU_BUTTON)
+        assertThat(APP_FROM_OVERVIEW.getEnterTransitionType())
+            .isEqualTo(TRANSIT_ENTER_DESKTOP_FROM_APP_FROM_OVERVIEW)
+        assertThat(TASK_DRAG.getEnterTransitionType())
+            .isEqualTo(TRANSIT_ENTER_DESKTOP_FROM_UNKNOWN)
+        assertThat(KEYBOARD_SHORTCUT.getEnterTransitionType())
+            .isEqualTo(TRANSIT_ENTER_DESKTOP_FROM_KEYBOARD_SHORTCUT)
+    }
+
+    @Test
+    fun testGetExitTransitionType() {
+        assertThat(UNKNOWN.getExitTransitionType()).isEqualTo(TRANSIT_EXIT_DESKTOP_MODE_UNKNOWN)
+        assertThat(APP_HANDLE_MENU_BUTTON.getExitTransitionType())
+            .isEqualTo(TRANSIT_EXIT_DESKTOP_MODE_HANDLE_MENU_BUTTON)
+        assertThat(APP_FROM_OVERVIEW.getExitTransitionType())
+            .isEqualTo(TRANSIT_EXIT_DESKTOP_MODE_UNKNOWN)
+        assertThat(TASK_DRAG.getExitTransitionType()).isEqualTo(TRANSIT_EXIT_DESKTOP_MODE_TASK_DRAG)
+        assertThat(KEYBOARD_SHORTCUT.getExitTransitionType())
+            .isEqualTo(TRANSIT_EXIT_DESKTOP_MODE_KEYBOARD_SHORTCUT)
+    }
+}
diff --git a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/desktopmode/DesktopTasksControllerTest.kt b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/desktopmode/DesktopTasksControllerTest.kt
index d7a3be8..ae05bf5 100644
--- a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/desktopmode/DesktopTasksControllerTest.kt
+++ b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/desktopmode/DesktopTasksControllerTest.kt
@@ -76,6 +76,7 @@
 import com.android.wm.shell.common.MultiInstanceHelper
 import com.android.wm.shell.common.ShellExecutor
 import com.android.wm.shell.common.SyncTransactionQueue
+import com.android.wm.shell.common.desktopmode.DesktopModeTransitionSource.UNKNOWN
 import com.android.wm.shell.common.split.SplitScreenConstants
 import com.android.wm.shell.desktopmode.DesktopTestHelpers.Companion.createFreeformTask
 import com.android.wm.shell.desktopmode.DesktopTestHelpers.Companion.createFullscreenTask
@@ -94,7 +95,6 @@
 import com.android.wm.shell.transition.TestRemoteTransition
 import com.android.wm.shell.transition.Transitions
 import com.android.wm.shell.transition.Transitions.ENABLE_SHELL_TRANSITIONS
-import com.android.wm.shell.transition.Transitions.TRANSIT_EXIT_DESKTOP_MODE
 import com.android.wm.shell.transition.Transitions.TransitionHandler
 import com.google.common.truth.Truth.assertThat
 import com.google.common.truth.Truth.assertWithMessage
@@ -197,7 +197,7 @@
 
     whenever(shellTaskOrganizer.getRunningTasks(anyInt())).thenAnswer { runningTasks }
     whenever(transitions.startTransition(anyInt(), any(), isNull())).thenAnswer { Binder() }
-    whenever(enterDesktopTransitionHandler.moveToDesktop(any())).thenAnswer { Binder() }
+    whenever(enterDesktopTransitionHandler.moveToDesktop(any(), any())).thenAnswer { Binder() }
     whenever(displayController.getDisplayLayout(anyInt())).thenReturn(displayLayout)
     whenever(displayLayout.getStableBounds(any())).thenAnswer { i ->
       (i.arguments.first() as Rect).set(STABLE_BOUNDS)
@@ -488,7 +488,7 @@
     val task = setUpFullscreenTask()
     setUpLandscapeDisplay()
 
-    controller.moveToDesktop(task)
+    controller.moveToDesktop(task, transitionSource = UNKNOWN)
     val wct = getLatestMoveToDesktopWct()
     assertThat(findBoundsChange(wct, task)).isEqualTo(DEFAULT_LANDSCAPE_BOUNDS)
   }
@@ -500,7 +500,7 @@
     val task = setUpFullscreenTask(screenOrientation = SCREEN_ORIENTATION_LANDSCAPE)
     setUpLandscapeDisplay()
 
-    controller.moveToDesktop(task)
+    controller.moveToDesktop(task, transitionSource = UNKNOWN)
     val wct = getLatestMoveToDesktopWct()
     assertThat(findBoundsChange(wct, task)).isEqualTo(DEFAULT_LANDSCAPE_BOUNDS)
   }
@@ -513,7 +513,7 @@
         setUpFullscreenTask(screenOrientation = SCREEN_ORIENTATION_PORTRAIT, shouldLetterbox = true)
     setUpLandscapeDisplay()
 
-    controller.moveToDesktop(task)
+    controller.moveToDesktop(task, transitionSource = UNKNOWN)
     val wct = getLatestMoveToDesktopWct()
     assertThat(findBoundsChange(wct, task)).isEqualTo(RESIZABLE_PORTRAIT_BOUNDS)
   }
@@ -526,7 +526,7 @@
         setUpFullscreenTask(isResizable = false, screenOrientation = SCREEN_ORIENTATION_LANDSCAPE)
     setUpLandscapeDisplay()
 
-    controller.moveToDesktop(task)
+    controller.moveToDesktop(task, transitionSource = UNKNOWN)
     val wct = getLatestMoveToDesktopWct()
     assertThat(findBoundsChange(wct, task)).isEqualTo(DEFAULT_LANDSCAPE_BOUNDS)
   }
@@ -542,7 +542,7 @@
             shouldLetterbox = true)
     setUpLandscapeDisplay()
 
-    controller.moveToDesktop(task)
+    controller.moveToDesktop(task, transitionSource = UNKNOWN)
     val wct = getLatestMoveToDesktopWct()
     assertThat(findBoundsChange(wct, task)).isEqualTo(UNRESIZABLE_PORTRAIT_BOUNDS)
   }
@@ -554,7 +554,7 @@
     val task = setUpFullscreenTask(deviceOrientation = ORIENTATION_PORTRAIT)
     setUpPortraitDisplay()
 
-    controller.moveToDesktop(task)
+    controller.moveToDesktop(task, transitionSource = UNKNOWN)
     val wct = getLatestMoveToDesktopWct()
     assertThat(findBoundsChange(wct, task)).isEqualTo(DEFAULT_PORTRAIT_BOUNDS)
   }
@@ -569,7 +569,7 @@
             screenOrientation = SCREEN_ORIENTATION_PORTRAIT)
     setUpPortraitDisplay()
 
-    controller.moveToDesktop(task)
+    controller.moveToDesktop(task, transitionSource = UNKNOWN)
     val wct = getLatestMoveToDesktopWct()
     assertThat(findBoundsChange(wct, task)).isEqualTo(DEFAULT_PORTRAIT_BOUNDS)
   }
@@ -585,7 +585,7 @@
             shouldLetterbox = true)
     setUpPortraitDisplay()
 
-    controller.moveToDesktop(task)
+    controller.moveToDesktop(task, transitionSource = UNKNOWN)
     val wct = getLatestMoveToDesktopWct()
     assertThat(findBoundsChange(wct, task)).isEqualTo(RESIZABLE_LANDSCAPE_BOUNDS)
   }
@@ -601,7 +601,7 @@
             screenOrientation = SCREEN_ORIENTATION_PORTRAIT)
     setUpPortraitDisplay()
 
-    controller.moveToDesktop(task)
+    controller.moveToDesktop(task, transitionSource = UNKNOWN)
     val wct = getLatestMoveToDesktopWct()
     assertThat(findBoundsChange(wct, task)).isEqualTo(DEFAULT_PORTRAIT_BOUNDS)
   }
@@ -618,7 +618,7 @@
             shouldLetterbox = true)
     setUpPortraitDisplay()
 
-    controller.moveToDesktop(task)
+    controller.moveToDesktop(task, transitionSource = UNKNOWN)
     val wct = getLatestMoveToDesktopWct()
     assertThat(findBoundsChange(wct, task)).isEqualTo(UNRESIZABLE_LANDSCAPE_BOUNDS)
   }
@@ -628,7 +628,7 @@
     val task = setUpFullscreenTask()
     val tda = rootTaskDisplayAreaOrganizer.getDisplayAreaInfo(DEFAULT_DISPLAY)!!
     tda.configuration.windowConfiguration.windowingMode = WINDOWING_MODE_FULLSCREEN
-    controller.moveToDesktop(task)
+    controller.moveToDesktop(task, transitionSource = UNKNOWN)
     val wct = getLatestMoveToDesktopWct()
     assertThat(wct.changes[task.token.asBinder()]?.windowingMode).isEqualTo(WINDOWING_MODE_FREEFORM)
   }
@@ -638,7 +638,7 @@
     val task = setUpFullscreenTask()
     val tda = rootTaskDisplayAreaOrganizer.getDisplayAreaInfo(DEFAULT_DISPLAY)!!
     tda.configuration.windowConfiguration.windowingMode = WINDOWING_MODE_FREEFORM
-    controller.moveToDesktop(task)
+    controller.moveToDesktop(task, transitionSource = UNKNOWN)
     val wct = getLatestMoveToDesktopWct()
     assertThat(wct.changes[task.token.asBinder()]?.windowingMode)
         .isEqualTo(WINDOWING_MODE_UNDEFINED)
@@ -646,7 +646,7 @@
 
   @Test
   fun moveToDesktop_nonExistentTask_doesNothing() {
-    controller.moveToDesktop(999)
+    controller.moveToDesktop(999, transitionSource = UNKNOWN)
     verifyWCTNotExecuted()
   }
 
@@ -658,7 +658,7 @@
 
     whenever(recentTasksController.findTaskInBackground(anyInt())).thenReturn(task)
 
-    controller.moveToDesktop(task.taskId)
+    controller.moveToDesktop(task.taskId, transitionSource = UNKNOWN)
     with(getLatestMoveToDesktopWct()) {
       assertLaunchTaskAt(0, task.taskId, WINDOWING_MODE_FREEFORM)
     }
@@ -673,7 +673,7 @@
           numActivities = 1
         }
 
-    controller.moveToDesktop(task)
+    controller.moveToDesktop(task, transitionSource = UNKNOWN)
     verifyWCTNotExecuted()
   }
 
@@ -684,7 +684,7 @@
     // Simulate non compatible device
     doReturn(false).`when` { DesktopModeStatus.isDesktopModeSupported(any()) }
 
-    controller.moveToDesktop(task)
+    controller.moveToDesktop(task, transitionSource = UNKNOWN)
     verifyWCTNotExecuted()
   }
 
@@ -698,7 +698,7 @@
     // Simulate enforce device restrictions system property overridden to false
     whenever(DesktopModeStatus.enforceDeviceRestrictions()).thenReturn(false)
 
-    controller.moveToDesktop(task)
+    controller.moveToDesktop(task, transitionSource = UNKNOWN)
 
     val wct = getLatestMoveToDesktopWct()
     assertThat(wct.changes[task.token.asBinder()]?.windowingMode).isEqualTo(WINDOWING_MODE_FREEFORM)
@@ -708,7 +708,7 @@
   fun moveToDesktop_deviceSupported_taskIsMovedToDesktop() {
     val task = setUpFullscreenTask()
 
-    controller.moveToDesktop(task)
+    controller.moveToDesktop(task, transitionSource = UNKNOWN)
 
     val wct = getLatestMoveToDesktopWct()
     assertThat(wct.changes[task.token.asBinder()]?.windowingMode).isEqualTo(WINDOWING_MODE_FREEFORM)
@@ -722,7 +722,7 @@
     val fullscreenTask = setUpFullscreenTask()
     markTaskHidden(freeformTask)
 
-    controller.moveToDesktop(fullscreenTask)
+    controller.moveToDesktop(fullscreenTask, transitionSource = UNKNOWN)
 
     with(getLatestMoveToDesktopWct()) {
       // Operations should include home task, freeform task
@@ -740,7 +740,7 @@
     val fullscreenTask = setUpFullscreenTask()
     markTaskHidden(freeformTask)
 
-    controller.moveToDesktop(fullscreenTask)
+    controller.moveToDesktop(fullscreenTask, transitionSource = UNKNOWN)
 
     with(getLatestMoveToDesktopWct()) {
       // Operations should include wallpaper intent, freeform task, fullscreen task
@@ -764,7 +764,7 @@
     val freeformTaskSecond = setUpFreeformTask(displayId = SECOND_DISPLAY)
     markTaskHidden(freeformTaskSecond)
 
-    controller.moveToDesktop(fullscreenTaskDefault)
+    controller.moveToDesktop(fullscreenTaskDefault, transitionSource = UNKNOWN)
 
     with(getLatestMoveToDesktopWct()) {
       // Check that hierarchy operations do not include tasks from second display
@@ -777,7 +777,7 @@
   @Test
   fun moveToDesktop_splitTaskExitsSplit() {
     val task = setUpSplitScreenTask()
-    controller.moveToDesktop(task)
+    controller.moveToDesktop(task, transitionSource = UNKNOWN)
     val wct = getLatestMoveToDesktopWct()
     assertThat(wct.changes[task.token.asBinder()]?.windowingMode).isEqualTo(WINDOWING_MODE_FREEFORM)
     verify(splitScreenController)
@@ -787,7 +787,7 @@
   @Test
   fun moveToDesktop_fullscreenTaskDoesNotExitSplit() {
     val task = setUpFullscreenTask()
-    controller.moveToDesktop(task)
+    controller.moveToDesktop(task, transitionSource = UNKNOWN)
     val wct = getLatestMoveToDesktopWct()
     assertThat(wct.changes[task.token.asBinder()]?.windowingMode).isEqualTo(WINDOWING_MODE_FREEFORM)
     verify(splitScreenController, never())
@@ -801,7 +801,7 @@
     val freeformTasks = (1..taskLimit).map { _ -> setUpFreeformTask() }
     val newTask = setUpFullscreenTask()
 
-    controller.moveToDesktop(newTask)
+    controller.moveToDesktop(newTask, transitionSource = UNKNOWN)
 
     val wct = getLatestMoveToDesktopWct()
     assertThat(wct.hierarchyOps.size).isEqualTo(taskLimit + 1) // visible tasks + home
@@ -817,7 +817,7 @@
     val task = setUpFreeformTask()
     val tda = rootTaskDisplayAreaOrganizer.getDisplayAreaInfo(DEFAULT_DISPLAY)!!
     tda.configuration.windowConfiguration.windowingMode = WINDOWING_MODE_FULLSCREEN
-    controller.moveToFullscreen(task.taskId)
+    controller.moveToFullscreen(task.taskId, transitionSource = UNKNOWN)
     val wct = getLatestExitDesktopWct()
     assertThat(wct.changes[task.token.asBinder()]?.windowingMode)
         .isEqualTo(WINDOWING_MODE_UNDEFINED)
@@ -828,7 +828,7 @@
     val task = setUpFreeformTask()
     val tda = rootTaskDisplayAreaOrganizer.getDisplayAreaInfo(DEFAULT_DISPLAY)!!
     tda.configuration.windowConfiguration.windowingMode = WINDOWING_MODE_FREEFORM
-    controller.moveToFullscreen(task.taskId)
+    controller.moveToFullscreen(task.taskId, transitionSource = UNKNOWN)
     val wct = getLatestExitDesktopWct()
     assertThat(wct.changes[task.token.asBinder()]?.windowingMode)
         .isEqualTo(WINDOWING_MODE_FULLSCREEN)
@@ -836,7 +836,7 @@
 
   @Test
   fun moveToFullscreen_nonExistentTask_doesNothing() {
-    controller.moveToFullscreen(999)
+    controller.moveToFullscreen(999, transitionSource = UNKNOWN)
     verifyWCTNotExecuted()
   }
 
@@ -845,7 +845,7 @@
     val taskDefaultDisplay = setUpFreeformTask(displayId = DEFAULT_DISPLAY)
     val taskSecondDisplay = setUpFreeformTask(displayId = SECOND_DISPLAY)
 
-    controller.moveToFullscreen(taskDefaultDisplay.taskId)
+    controller.moveToFullscreen(taskDefaultDisplay.taskId, transitionSource = UNKNOWN)
 
     with(getLatestExitDesktopWct()) {
       assertThat(changes.keys).contains(taskDefaultDisplay.token.asBinder())
@@ -1282,7 +1282,7 @@
     task2.isFocused = false
     task3.isFocused = false
 
-    controller.moveFocusedTaskToDesktop(DEFAULT_DISPLAY)
+    controller.moveFocusedTaskToDesktop(DEFAULT_DISPLAY, transitionSource = UNKNOWN)
 
     val wct = getLatestMoveToDesktopWct()
     assertThat(wct.changes[task1.token.asBinder()]?.windowingMode)
@@ -1303,7 +1303,7 @@
 
     task4.parentTaskId = task1.taskId
 
-    controller.moveFocusedTaskToDesktop(DEFAULT_DISPLAY)
+    controller.moveFocusedTaskToDesktop(DEFAULT_DISPLAY, transitionSource = UNKNOWN)
 
     val wct = getLatestMoveToDesktopWct()
     assertThat(wct.changes[task4.token.asBinder()]?.windowingMode)
@@ -1322,7 +1322,7 @@
     task2.isFocused = true
     task3.isFocused = false
 
-    controller.enterFullscreen(DEFAULT_DISPLAY)
+    controller.enterFullscreen(DEFAULT_DISPLAY, transitionSource = UNKNOWN)
 
     val wct = getLatestExitDesktopWct()
     assertThat(wct.changes[task2.token.asBinder()]?.windowingMode)
@@ -1751,7 +1751,7 @@
   private fun getLatestMoveToDesktopWct(): WindowContainerTransaction {
     val arg = ArgumentCaptor.forClass(WindowContainerTransaction::class.java)
     if (ENABLE_SHELL_TRANSITIONS) {
-      verify(enterDesktopTransitionHandler).moveToDesktop(arg.capture())
+      verify(enterDesktopTransitionHandler).moveToDesktop(arg.capture(), any())
     } else {
       verify(shellTaskOrganizer).applyTransaction(arg.capture())
     }
@@ -1772,8 +1772,7 @@
   private fun getLatestExitDesktopWct(): WindowContainerTransaction {
     val arg = ArgumentCaptor.forClass(WindowContainerTransaction::class.java)
     if (ENABLE_SHELL_TRANSITIONS) {
-      verify(exitDesktopTransitionHandler)
-          .startTransition(eq(TRANSIT_EXIT_DESKTOP_MODE), arg.capture(), any(), any())
+      verify(exitDesktopTransitionHandler).startTransition(any(), arg.capture(), any(), any())
     } else {
       verify(shellTaskOrganizer).applyTransaction(arg.capture())
     }
diff --git a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/desktopmode/ExitDesktopTaskTransitionHandlerTest.java b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/desktopmode/ExitDesktopTaskTransitionHandlerTest.java
index 0d0a08c..b2467e9 100644
--- a/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/desktopmode/ExitDesktopTaskTransitionHandlerTest.java
+++ b/libs/WindowManager/Shell/tests/unittest/src/com/android/wm/shell/desktopmode/ExitDesktopTaskTransitionHandlerTest.java
@@ -21,6 +21,8 @@
 
 import static androidx.test.internal.runner.junit4.statement.UiThreadStatement.runOnUiThread;
 
+import static com.android.wm.shell.desktopmode.DesktopModeTransitionTypes.TRANSIT_EXIT_DESKTOP_MODE_UNKNOWN;
+
 import static org.junit.Assert.assertTrue;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.mock;
@@ -45,6 +47,7 @@
 
 import com.android.wm.shell.ShellTestCase;
 import com.android.wm.shell.common.ShellExecutor;
+import com.android.wm.shell.common.desktopmode.DesktopModeTransitionSource;
 import com.android.wm.shell.transition.Transitions;
 
 import org.junit.Before;
@@ -97,18 +100,18 @@
 
     @Test
     public void testTransitExitDesktopModeAnimation() throws Throwable {
-        final int transitionType = Transitions.TRANSIT_EXIT_DESKTOP_MODE;
+        final int transitionType = TRANSIT_EXIT_DESKTOP_MODE_UNKNOWN;
         final int taskId = 1;
         WindowContainerTransaction wct = new WindowContainerTransaction();
         doReturn(mToken).when(mTransitions)
                 .startTransition(transitionType, wct, mExitDesktopTaskTransitionHandler);
 
-        mExitDesktopTaskTransitionHandler.startTransition(transitionType, wct, mPoint,
-                null);
+        mExitDesktopTaskTransitionHandler.startTransition(DesktopModeTransitionSource.UNKNOWN,
+                wct, mPoint, null);
 
         TransitionInfo.Change change =
                 createChange(WindowManager.TRANSIT_CHANGE, taskId, WINDOWING_MODE_FULLSCREEN);
-        TransitionInfo info = createTransitionInfo(Transitions.TRANSIT_EXIT_DESKTOP_MODE, change);
+        TransitionInfo info = createTransitionInfo(TRANSIT_EXIT_DESKTOP_MODE_UNKNOWN, change);
         ArrayList<Exception> exceptions = new ArrayList<>();
         runOnUiThread(() -> {
             try {