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/**
* @file llfocusmgr.h
* @brief LLFocusMgr base class
*
* Copyright (c) 2002-$CurrentYear$, Linden Research, Inc.
* $License$
*/
// Singleton that manages keyboard and mouse focus
#ifndef LL_LLFOCUSMGR_H
#define LL_LLFOCUSMGR_H
#include "llstring.h"
#include "llframetimer.h"
#include "llview.h"
class LLUICtrl;
class LLMouseHandler;
class LLFocusMgr
{
public:
typedef void (*FocusLostCallback)(LLUICtrl*);
LLFocusMgr();
~LLFocusMgr();
// Mouse Captor
void setMouseCapture(LLMouseHandler* new_captor); // new_captor = NULL to release the mouse.
LLMouseHandler* getMouseCapture() { return mMouseCaptor; }
void removeMouseCaptureWithoutCallback( LLMouseHandler* captor );
BOOL childHasMouseCapture( LLView* parent );
// Keyboard Focus
void setKeyboardFocus(LLUICtrl* new_focus, FocusLostCallback on_focus_lost, BOOL lock = FALSE); // new_focus = NULL to release the focus.
LLUICtrl* getKeyboardFocus() const { return mKeyboardFocus; }
BOOL childHasKeyboardFocus( const LLView* parent ) const;
void removeKeyboardFocusWithoutCallback( LLView* focus );
FocusLostCallback getFocusCallback() { return mKeyboardFocusLostCallback; }
F32 getFocusTime() const { return mFocusTimer.getElapsedTimeF32(); }
F32 getFocusFlashAmt();
LLColor4 getFocusColor();
void triggerFocusFlash();
BOOL getAppHasFocus() { return mAppHasFocus; }
void setAppHasFocus(BOOL focus);
LLUICtrl* getLastFocusForGroup(LLView* subtree_root);
void clearLastFocusForGroup(LLView* subtree_root);
// If setKeyboardFocus(NULL) is called, and there is a non-NULL default
// keyboard focus view, focus goes there. JC
void setDefaultKeyboardFocus(LLUICtrl* default_focus);
LLUICtrl* getDefaultKeyboardFocus() const { return mDefaultKeyboardFocus; }
// Top View
void setTopCtrl(LLUICtrl* new_top);
LLUICtrl* getTopCtrl() const { return mTopCtrl; }
void removeTopCtrlWithoutCallback( LLUICtrl* top_view );
BOOL childIsTopCtrl( LLView* parent );
// All Three
void releaseFocusIfNeeded( LLView* top_view );
void unlockFocus();
BOOL focusLocked() { return mLockedView != NULL; }
protected:
LLUICtrl* mLockedView;
FocusLostCallback mKeyboardLockedFocusLostCallback;
// Mouse Captor
LLMouseHandler* mMouseCaptor; // Mouse events are premptively routed to this object
// Keyboard Focus
LLUICtrl* mKeyboardFocus; // Keyboard events are preemptively routed to this object
LLUICtrl* mDefaultKeyboardFocus;
FocusLostCallback mKeyboardFocusLostCallback; // The object to which keyboard events are routed is called before another object takes its place
// Top View
LLUICtrl* mTopCtrl;
LLFrameTimer mFocusTimer;
F32 mFocusWeight;
BOOL mAppHasFocus;
typedef std::map<LLViewHandle, LLViewHandle> focus_history_map_t;
focus_history_map_t mFocusHistory;
#ifdef _DEBUG
LLString mMouseCaptorName;
LLString mKeyboardFocusName;
LLString mTopCtrlName;
#endif
};
extern LLFocusMgr gFocusMgr;
#endif // LL_LLFOCUSMGR_H
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