Add undo/redo keyboard accelerator support to poser

indra/newview/fsfloaterposer.cpp

@@ -239,6 +239,19 @@ void FSFloaterPoser::onOpen(const LLSD& key)
     LLFloater::onOpen(key);
 }
 
+
+void FSFloaterPoser::onFocusReceived()
+{
+    LLEditMenuHandler::gEditMenuHandler = this;
+}
+
+void FSFloaterPoser::onFocusLost()
+{
+    if( LLEditMenuHandler::gEditMenuHandler == this )
+    {
+        LLEditMenuHandler::gEditMenuHandler = nullptr;
+    }
+}
 void FSFloaterPoser::enableVisualManipulators()
 {
     if (LLToolMgr::getInstance()->getCurrentToolset() != gCameraToolset)

indra/newview/fsfloaterposer.h

@@ -74,18 +74,23 @@ typedef enum E_Columns
 /// A class containing the UI fiddling for the Poser Floater.
 /// Please don't do LLJoint stuff here, fsposingmotion (the LLMotion derivative) is the class for that.
 /// </summary>
-class FSFloaterPoser : public LLFloater
+class FSFloaterPoser : public LLFloater, public LLEditMenuHandler
 {
     friend class LLFloaterReg;
     FSFloaterPoser(const LLSD &key);
 public:    
     void updatePosedBones();
     void selectJointByName(const std::string& jointName);
+    void  undo() override { onUndoLastChange(); };
+    bool  canUndo() const  override { return true; }
+    void  redo() override { onRedoLastChange(); };
+    bool  canRedo() const override { return true; }    
  private:
     bool postBuild() override;
     void onOpen(const LLSD& key) override;
     void onClose(bool app_quitting) override;
-
+    void onFocusReceived() override;
+    void onFocusLost() override;
     /// <summary>
     /// Refreshes the supplied pose list from the supplued subdirectory.
     /// </summary>

indra/newview/fsmaniprotatejoint.cpp

@@ -932,14 +932,15 @@ bool FSManipRotateJoint::handleMouseDown(S32 x, S32 y, MASK mask)
  */
 bool FSManipRotateJoint::handleMouseDownOnPart(S32 x, S32 y, MASK mask)
 {
+    auto * poser = dynamic_cast<FSFloaterPoser*>(LLFloaterReg::findInstance("fs_poser"));
     // Determine which ring (axis) is under the mouse, also highlights selectable joints.
     highlightManipulators(x, y);
     // For joint manipulation, require both a valid joint and avatar.
-    if (!mJoint || !mAvatar)
+    if (!mJoint || !mAvatar || !poser)
     {
         return false;
     }
-
+    poser->setFocus(true);
     S32 hit_part = mHighlightedPart;
 
     // Save the joint’s current world rotation as the basis for the drag.

indra/newview/skins/default/xui/en/floater_fs_poser.xml

@@ -937,7 +937,7 @@ width="430">
 				 tool_tip="Toggle the visual manipulators on and off"
 				 height="50"
 				 width="50"
-				 left="2"
+				 left="5"
 				 bottom_delta="5"
 				 >
 					<button.commit_callback