summaryrefslogtreecommitdiff
path: root/indra/llui/llfloater.h
blob: 13d9bf5adc36622ead6e2802b5e7b16d1c372755 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
/** 
 * @file llfloater.h
 * @brief LLFloater base class
 *
 * $LicenseInfo:firstyear=2002&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, Linden Research, Inc.
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

// Floating "windows" within the GL display, like the inventory floater,
// mini-map floater, etc.


#ifndef LL_FLOATER_H
#define LL_FLOATER_H

#include "llpanel.h"
#include "lltoolbar.h"
#include "lluuid.h"
//#include "llnotificationsutil.h"
#include <set>
#include <boost/signals2.hpp>

class LLDragHandle;
class LLResizeHandle;
class LLResizeBar;
class LLButton;
class LLMultiFloater;
class LLFloater;


const bool RESIZE_YES = true;
const bool RESIZE_NO = false;

const bool DRAG_ON_TOP = false;
const bool DRAG_ON_LEFT = true;

const bool MINIMIZE_YES = true;
const bool MINIMIZE_NO = false;

const bool CLOSE_YES = true;
const bool CLOSE_NO = false;

const bool ADJUST_VERTICAL_YES = true;
const bool ADJUST_VERTICAL_NO = false;

namespace LLFloaterEnums
{
	enum EOpenPositioning
	{
		POSITIONING_RELATIVE,
		POSITIONING_CASCADING,
		POSITIONING_CASCADE_GROUP,
		POSITIONING_CENTERED,
		POSITIONING_SPECIFIED,
		POSITIONING_COUNT
	};
}

namespace LLInitParam
{
	template<>
	struct TypeValues<LLFloaterEnums::EOpenPositioning> : public TypeValuesHelper<LLFloaterEnums::EOpenPositioning>
	{
		static void declareValues();
	};
}

struct LL_COORD_FLOATER
{
	typedef F32 value_t;

	LLCoordCommon convertToCommon() const;
	void convertFromCommon(const LLCoordCommon& from);
protected:
	LLHandle<LLFloater> mFloater;
};

struct LLCoordFloater : LLCoord<LL_COORD_FLOATER>
{
	typedef LLCoord<LL_COORD_FLOATER> coord_t;

	LLCoordFloater() {}
	LLCoordFloater(F32 x, F32 y, LLFloater& floater);
	LLCoordFloater(const LLCoordCommon& other, LLFloater& floater);

	LLCoordFloater& operator=(const LLCoordCommon& other)
	{
		convertFromCommon(other);
		return *this;
	}

	LLCoordFloater& operator=(const LLCoordFloater& other);

	bool operator==(const LLCoordFloater& other) const;
	bool operator!=(const LLCoordFloater& other) const { return !(*this == other); }

	void setFloater(LLFloater& floater);
};

class LLFloater : public LLPanel, public LLInstanceTracker<LLFloater>
{
	friend class LLFloaterView;
	friend class LLFloaterReg;
	friend class LLMultiFloater;

public:

	struct KeyCompare
	{
//		static bool compare(const LLSD& a, const LLSD& b);
		static bool equate(const LLSD& a, const LLSD& b);
/*==========================================================================*|
		bool operator()(const LLSD& a, const LLSD& b) const
		{
			return compare(a, b);
		}
|*==========================================================================*/
	};
	
	enum EFloaterButton
	{
		BUTTON_CLOSE = 0,
		BUTTON_RESTORE,
		BUTTON_MINIMIZE,
		BUTTON_TEAR_OFF,
		BUTTON_DOCK,
		BUTTON_HELP,
		BUTTON_COUNT
	};
	
	struct Params 
	:	public LLInitParam::Block<Params, LLPanel::Params>
	{
		Optional<std::string>	title,
								short_title;
		
		Optional<bool>			single_instance,
								reuse_instance,
								can_resize,
								can_minimize,
								can_close,
								can_drag_on_left,
								can_tear_off,
								save_rect,
								save_visibility,
								save_dock_state,
								can_dock,
								show_title,
								auto_close;
		
		Optional<LLFloaterEnums::EOpenPositioning>	positioning;
		
		Optional<S32>			header_height,
								legacy_header_height; // HACK see initFromXML()

		Optional<F32>			rel_x,
								rel_y;

		// Images for top-right controls
		Optional<LLUIImage*>	close_image,
								restore_image,
								minimize_image,
								tear_off_image,
								dock_image,
								help_image;
		Optional<LLUIImage*>	close_pressed_image,
								restore_pressed_image,
								minimize_pressed_image,
								tear_off_pressed_image,
								dock_pressed_image,
								help_pressed_image;
		
		Optional<CommitCallbackParam> open_callback,
									  close_callback;

		Ignored					follows;
		
		Params();
	};
	
	// use this to avoid creating your own default LLFloater::Param instance
	static const Params& getDefaultParams();

	// Load translations for tooltips for standard buttons
	static void initClass();

	LLFloater(const LLSD& key, const Params& params = getDefaultParams());

	virtual ~LLFloater();

	// Don't export top/left for rect, only height/width
	static void setupParamsForExport(Params& p, LLView* parent);
	bool buildFromFile(const std::string &filename, bool cacheable = false);

	boost::signals2::connection setMinimizeCallback( const commit_signal_t::slot_type& cb );
	boost::signals2::connection setOpenCallback( const commit_signal_t::slot_type& cb );
	boost::signals2::connection setCloseCallback( const commit_signal_t::slot_type& cb );

	void initFromParams(const LLFloater::Params& p);
	bool initFloaterXML(LLXMLNodePtr node, LLView *parent, const std::string& filename, LLXMLNodePtr output_node = NULL);

	/*virtual*/ void handleReshape(const LLRect& new_rect, bool by_user = false);
	/*virtual*/ bool canSnapTo(const LLView* other_view); 
	/*virtual*/ void setSnappedTo(const LLView* snap_view);
	/*virtual*/ void setFocus( bool b );
	/*virtual*/ void setIsChrome(bool is_chrome);
	/*virtual*/ void setRect(const LLRect &rect);
                void setIsSingleInstance(bool is_single_instance);
                bool getIsSingleInstance() { return mSingleInstance; }

	void 			initFloater(const Params& p);

	void			openFloater(const LLSD& key = LLSD());

	// If allowed, close the floater cleanly, releasing focus.
	virtual void	closeFloater(bool app_quitting = false);

	// Close the floater or its host. Use when hidding or toggling a floater instance.
	virtual void	closeHostedFloater();

	/*virtual*/ void reshape(S32 width, S32 height, bool called_from_parent = true);
	/*virtual*/ void translate(S32 x, S32 y);
	
	// Release keyboard and mouse focus
	void			releaseFocus();

	// moves to center of gFloaterView
	void			center();

	LLMultiFloater* getHost();
	bool isDetachedAndNotMinimized();

	void			applyTitle();
	std::string		getCurrentTitle() const;
	void			setTitle( const std::string& title);
	std::string		getTitle() const;
	void			setShortTitle( const std::string& short_title );
	std::string		getShortTitle() const;
	virtual void	setMinimized(bool b);
	void			moveResizeHandlesToFront();
	void			addDependentFloater(LLFloater* dependent, bool reposition = true, bool resize = false);
	void			addDependentFloater(LLHandle<LLFloater> dependent_handle, bool reposition = true, bool resize = false);
	LLFloater*		getDependee() { return (LLFloater*)mDependeeHandle.get(); }
	void			removeDependentFloater(LLFloater* dependent);
	void			fitWithDependentsOnScreen(const LLRect& left, const LLRect& bottom, const LLRect& right, const LLRect& constraint, S32 min_overlap_pixels);
	bool			isMinimized() const				{ return mMinimized; }
	/// isShown() differs from getVisible() in that isShown() also considers
	/// isMinimized(). isShown() is true only if visible and not minimized.
	bool			isShown() const;
	/// The static isShown() can accept a NULL pointer (which of course
	/// returns false). When non-NULL, it calls the non-static isShown().
	static bool		isShown(const LLFloater* floater);
	static bool     isVisible(const LLFloater* floater);
	static bool     isMinimized(const LLFloater* floater);
	bool			isFirstLook() { return mFirstLook; } // EXT-2653: This function is necessary to prevent overlapping for secondary showed toasts
	virtual bool	isFrontmost();
	bool			isDependent()					{ return !mDependeeHandle.isDead(); }
	void			setCanMinimize(bool can_minimize);
	void			setCanClose(bool can_close);
	void			setCanTearOff(bool can_tear_off);
	virtual void	setCanResize(bool can_resize);
	void			setCanDrag(bool can_drag);
	bool			getCanDrag();
	void			setHost(LLMultiFloater* host);
	bool			isResizable() const				{ return mResizable; }
	void			setResizeLimits( S32 min_width, S32 min_height );
	void			getResizeLimits( S32* min_width, S32* min_height ) { *min_width = mMinWidth; *min_height = mMinHeight; }

	static std::string		getControlName(const std::string& name, const LLSD& key);
	static LLControlGroup*	getControlGroup();

	bool			isMinimizeable() const{ return mCanMinimize; }
	bool			isCloseable() const{ return mCanClose; }
	bool			isDragOnLeft() const{ return mDragOnLeft; }
	S32				getMinWidth() const{ return mMinWidth; }
	S32				getMinHeight() const{ return mMinHeight; }
	S32				getHeaderHeight() const { return mHeaderHeight; }

	virtual bool	handleMouseDown(S32 x, S32 y, MASK mask);
	virtual bool	handleMouseUp(S32 x, S32 y, MASK mask);
	virtual bool	handleRightMouseDown(S32 x, S32 y, MASK mask);
	virtual bool	handleDoubleClick(S32 x, S32 y, MASK mask);
	virtual bool	handleMiddleMouseDown(S32 x, S32 y, MASK mask);
	
	virtual bool	handleScrollWheel(S32 x, S32 y, S32 mask);
	
	virtual void	draw();
	virtual void	drawShadow(LLPanel* panel);
	
	virtual void	onOpen(const LLSD& key) {}
	virtual void	onClose(bool app_quitting) {}

	// This cannot be "const" until all derived floater canClose()
	// methods are const as well.  JC
	virtual bool	canClose() { return true; }

	/*virtual*/ void setVisible(bool visible); // do not override
	/*virtual*/ void onVisibilityChange ( bool new_visibility ); // do not override
	
	bool            canFocusStealFrontmost() const { return mFocusStealsFrontmost; }
	void            setFocusStealsFrontmost(bool wants_frontmost) { mFocusStealsFrontmost = wants_frontmost; }

	void			setFrontmost(bool take_focus = true, bool restore = true);
     virtual void	setVisibleAndFrontmost(bool take_focus = true, const LLSD& key = LLSD());
	
	// Defaults to false.
	virtual bool	canSaveAs() const { return false; }

	virtual void	saveAs() {}

	void			setSnapTarget(LLHandle<LLFloater> handle) { mSnappedTo = handle; }
	void			clearSnapTarget() { mSnappedTo.markDead(); }
	LLHandle<LLFloater>	getSnapTarget() const { return mSnappedTo; }

	LLHandle<LLFloater> getHandle() const { return getDerivedHandle<LLFloater>(); }
	const LLSD& 	getKey() { return mKey; }
	virtual bool	matchesKey(const LLSD& key) { return mSingleInstance || KeyCompare::equate(key, mKey); }
	
	const std::string& getInstanceName() { return mInstanceName; }
	
	bool            isDockable() const { return mCanDock; }
	void            setCanDock(bool b);

	bool            isDocked() const { return mDocked; }
	virtual void    setDocked(bool docked, bool pop_on_undock = true);

	virtual void    setTornOff(bool torn_off) { mTornOff = torn_off; }
	bool isTornOff() {return mTornOff;}
	void setOpenPositioning(LLFloaterEnums::EOpenPositioning pos) {mPositioning = pos;}


	// Close the floater returned by getFrontmostClosableFloater() and 
	// handle refocusing.
	static void		closeFrontmostFloater();

    static bool     isQuitRequested() { return sQuitting; }

//	LLNotification::Params contextualNotification(const std::string& name) 
//	{ 
//	    return LLNotification::Params(name).context(mNotificationContext); 
//	}

	static void		onClickClose(LLFloater* floater);
	static void		onClickMinimize(LLFloater* floater);
	static void		onClickTearOff(LLFloater* floater);
	static void     onClickDock(LLFloater* floater);
	static void		onClickHelp(LLFloater* floater);

	static void		setFloaterHost(LLMultiFloater* hostp) {sHostp = hostp; }
	static LLMultiFloater* getFloaterHost() {return sHostp; }

	void			updateTransparency(ETypeTransparency transparency_type);
		
	void			enableResizeCtrls(bool enable, bool width = true, bool height = true);

	bool			isPositioning(LLFloaterEnums::EOpenPositioning p) const { return (p == mPositioning); }
protected:
	void			applyControlsAndPosition(LLFloater* other);

	void			stackWith(LLFloater& other);

	virtual void    initRectControl();
	virtual bool	applyRectControl();
	bool			applyDockState();
	void			applyPositioning(LLFloater* other, bool on_open);
	void			applyRelativePosition();

	void			storeRectControl();
	void			storeVisibilityControl();
	void			storeDockStateControl();

	void		 	setKey(const LLSD& key);
	void		 	setInstanceName(const std::string& name);
	
	virtual void	bringToFront(S32 x, S32 y);
	virtual void	goneFromFront();
	
	void			setExpandedRect(const LLRect& rect) { mExpandedRect = rect; } // size when not minimized
	const LLRect&	getExpandedRect() const { return mExpandedRect; }

	void			setAutoFocus(bool focus) { mAutoFocus = focus; } // whether to automatically take focus when opened
	bool			getAutoFocus() const { return mAutoFocus; }
	LLDragHandle*	getDragHandle() const { return mDragHandle; }

	void			destroy(); // Don't call this directly.  You probably want to call closeFloater()

	virtual	void	onClickCloseBtn(bool app_quitting = false);

	virtual void	updateTitleButtons();

	// Draws a cone from this floater to parent floater or view (owner)
	// Modifies context_cone_opacity (interpolates according to fade time and returns new value)
	void			drawConeToOwner(F32 &context_cone_opacity,
									F32 max_cone_opacity,
									LLView *owner_view,
									F32 context_fade_time = CONTEXT_CONE_FADE_TIME,
									F32 contex_cone_in_alpha = CONTEXT_CONE_IN_ALPHA,
									F32 contex_cone_out_alpha = CONTEXT_CONE_OUT_ALPHA);

private:
	void			setForeground(bool b);	// called only by floaterview
	void			cleanupHandles(); // remove handles to dead floaters
	void			createMinimizeButton();
	void			buildButtons(const Params& p);
	
	// Images and tooltips are named in the XML, but we want to look them
	// up by index.
	static LLUIImage*	getButtonImage(const Params& p, EFloaterButton e);
	static LLUIImage*	getButtonPressedImage(const Params& p, EFloaterButton e);
	
	/**
	 * @params is_chrome - if floater is Chrome it means that floater will never get focus.
	 * Therefore it can't be closed with 'Ctrl+W'. So the tooltip text of close button( X )
	 * should be 'Close' not 'Close(Ctrl+W)' as for usual floaters.
	 */
	static std::string	getButtonTooltip(const Params& p, EFloaterButton e, bool is_chrome);

	bool			offerClickToButton(S32 x, S32 y, MASK mask, EFloaterButton index);
	void			addResizeCtrls();
	void			layoutResizeCtrls();
	void 			addDragHandle();
	void			layoutDragHandle();		// repair layout

	static void		updateActiveFloaterTransparency();
	static void		updateInactiveFloaterTransparency();
	void			updateTransparency(LLView* view, ETypeTransparency transparency_type);

public:
	static const F32 CONTEXT_CONE_IN_ALPHA;
	static const F32 CONTEXT_CONE_OUT_ALPHA;
	static const F32 CONTEXT_CONE_FADE_TIME;

	// Called when floater is opened, passes mKey
	// Public so external views or floaters can watch for this floater opening
	commit_signal_t mOpenSignal;

	// Called when floater is closed, passes app_qitting as LLSD()
	// Public so external views or floaters can watch for this floater closing
	commit_signal_t mCloseSignal;		

	commit_signal_t* mMinimizeSignal;

protected:
	bool			mSaveRect;
	bool			mDefaultRectForGroup;
	std::string		mRectControl;
	std::string		mPosXControl;
	std::string		mPosYControl;
	std::string		mVisibilityControl;
	std::string		mDocStateControl;
	LLSD			mKey;				// Key used for retrieving instances; set (for now) by LLFLoaterReg

	LLDragHandle*	mDragHandle;
	LLResizeBar*	mResizeBar[4];
	LLResizeHandle*	mResizeHandle[4];

	LLButton*		mButtons[BUTTON_COUNT];
private:
	LLRect			mExpandedRect;
	
	LLUIString		mTitle;
	LLUIString		mShortTitle;
	
	bool			mSingleInstance;	  // true if there is only ever one instance of the floater
	bool			mReuseInstance;		  // true if we want to hide the floater when we close it instead of destroying it
    bool            mIsReuseInitialized;  // true if mReuseInstance already set from parameters
	std::string		mInstanceName;		  // Store the instance name so we can remove ourselves from the list
	
	bool			mCanTearOff;
	bool			mCanMinimize;
	bool			mCanClose;
    bool            mFocusStealsFrontmost = true;	// false if we don't want the currently focused floater to cover this floater without user interaction
	bool			mDragOnLeft;
	bool			mResizable;
	bool			mAutoClose;

	LLFloaterEnums::EOpenPositioning	mPositioning;
	LLCoordFloater	mPosition;
	
	S32				mMinWidth;
	S32				mMinHeight;
	S32				mHeaderHeight;		// height in pixels of header for title, drag bar
	S32				mLegacyHeaderHeight;// HACK see initFloaterXML()
	
	bool			mMinimized;
	bool			mForeground;
	LLHandle<LLFloater>	mDependeeHandle;
	

	bool			mFirstLook;			// true if the _next_ time this floater is visible will be the first time in the session that it is visible.
	
	typedef std::set<LLHandle<LLFloater> > handle_set_t;
	typedef std::set<LLHandle<LLFloater> >::iterator handle_set_iter_t;
	handle_set_t	mDependents;
	bool			mTranslateWithDependents { false };

	bool			mButtonsEnabled[BUTTON_COUNT];
	F32				mButtonScale;
	bool			mAutoFocus;
	LLHandle<LLFloater> mSnappedTo;
	
	LLHandle<LLFloater> mHostHandle;
	LLHandle<LLFloater> mLastHostHandle;

	bool            mCanDock;
	bool            mDocked;
	bool            mTornOff;

	static LLMultiFloater* sHostp;
	static bool		sQuitting;
	static std::string	sButtonNames[BUTTON_COUNT];
	static std::string	sButtonToolTips[BUTTON_COUNT];
	static std::string  sButtonToolTipsIndex[BUTTON_COUNT];
	
	typedef void(*click_callback)(LLFloater*);
	static click_callback sButtonCallbacks[BUTTON_COUNT];

	bool			mHasBeenDraggedWhileMinimized;
	S32				mPreviousMinimizedBottom;
	S32				mPreviousMinimizedLeft;

	F32				mDefaultRelativeX;
	F32				mDefaultRelativeY;
};


/////////////////////////////////////////////////////////////
// LLFloaterView
// Parent of all floating panels

const S32 FLOATER_MIN_VISIBLE_PIXELS = 16;

class LLFloaterView : public LLUICtrl
{
public:
	struct Params : public LLInitParam::Block<Params, LLUICtrl::Params>{};

protected:
	LLFloaterView (const Params& p);
	friend class LLUICtrlFactory;

public:

	/*virtual*/ void reshape(S32 width, S32 height, bool called_from_parent = true);
	/*virtual*/ void draw();
	/*virtual*/ LLRect getSnapRect() const;
	/*virtual*/ void refresh();

	LLRect			findNeighboringPosition( LLFloater* reference_floater, LLFloater* neighbor );

	// Given a child of gFloaterView, make sure this view can fit entirely onscreen.
	void			adjustToFitScreen(LLFloater* floater, bool allow_partial_outside, bool snap_in_toolbars = false);

	void			setMinimizePositionVerticalOffset(S32 offset) { mMinimizePositionVOffset = offset; }
	void			getMinimizePosition( S32 *left, S32 *bottom);
	void			restoreAll();		// un-minimize all floaters
	typedef std::set<LLView*> skip_list_t;
	void pushVisibleAll(bool visible, const skip_list_t& skip_list = skip_list_t());
	void popVisibleAll(const skip_list_t& skip_list = skip_list_t());

	void			setCycleMode(bool mode) { mFocusCycleMode = mode; }
	bool			getCycleMode() const { return mFocusCycleMode; }
	void			bringToFront( LLFloater* child, bool give_focus = true, bool restore = true );
	void			highlightFocusedFloater();
	void			unhighlightFocusedFloater();
	void			focusFrontFloater();
	void			destroyAllChildren();
	// attempt to close all floaters
	void			closeAllChildren(bool app_quitting);
	bool			allChildrenClosed();
	void			shiftFloaters(S32 x_offset, S32 y_offset);

	void			hideAllFloaters();
	void			showHiddenFloaters();


	LLFloater* getFrontmost() const;
	LLFloater* getBackmost() const;
	LLFloater* getParentFloater(LLView* viewp) const;
	LLFloater* getFocusedFloater() const;
	void		syncFloaterTabOrder();

	// Returns z order of child provided. 0 is closest, larger numbers
	// are deeper in the screen. If there is no such child, the return
	// value is not defined.
	S32 getZOrder(LLFloater* child);

	void setFloaterSnapView(LLHandle<LLView> snap_view) {mSnapView = snap_view; }
	LLFloater* getFrontmostClosableFloater(); 

	void setToolbarRect(LLToolBarEnums::EToolBarLocation tb, const LLRect& toolbar_rect);

private:
	void hiddenFloaterClosed(LLFloater* floater);

	LLRect				mLastSnapRect;
	LLRect				mToolbarLeftRect;
	LLRect				mToolbarBottomRect;
	LLRect				mToolbarRightRect;
	LLHandle<LLView>	mSnapView;
	bool			mFocusCycleMode;
	S32				mSnapOffsetBottom;
	S32				mSnapOffsetRight;
	S32				mMinimizePositionVOffset;
	typedef std::vector<std::pair<LLHandle<LLFloater>, boost::signals2::connection> > hidden_floaters_t;
	hidden_floaters_t mHiddenFloaters;
    LLHandle<LLFloater>	mFrontChildHandle;
};

//
// Globals
//

extern LLFloaterView* gFloaterView;

#endif  // LL_FLOATER_H