EXT-7951 FIXED (Mini-Location panel appearance design issues)

- Added callback on show\hide Mini Location Panel event. This callback sets proper initial minimized position depending on state (shown or hidded) Mini Location Panel. Also callback shifts vertically already minimized floaters so that they don't overlap Mini Location Panel

Reviewed by Vadim Savchuk at https://codereview.productengine.com/secondlife/r/851/

--HG--
branch : product-engine

indra/llui/llfloater.cpp

@@ -2285,6 +2285,7 @@ void LLFloaterView::getMinimizePosition(S32 *left, S32 *bottom)
 	S32 floater_header_size = default_params.header_height;
 	static LLUICachedControl<S32> minimized_width ("UIMinimizedWidth", 0);
 	LLRect snap_rect_local = getLocalSnapRect();
+	snap_rect_local.mTop += mMinimizePositionVOffset;
 	for(S32 col = snap_rect_local.mLeft;
 		col < snap_rect_local.getWidth() - minimized_width;
 		col += minimized_width)
@@ -2382,6 +2383,19 @@ BOOL LLFloaterView::allChildrenClosed()
 	return true;
 }
 
+void LLFloaterView::shiftFloaters(S32 x_offset, S32 y_offset)
+{
+	for (child_list_const_iter_t it = getChildList()->begin(); it != getChildList()->end(); ++it)
+	{
+		LLFloater* floaterp = dynamic_cast<LLFloater*>(*it);
+
+		if (floaterp && floaterp->isMinimized())
+		{
+			floaterp->translate(x_offset, y_offset);
+		}
+	}
+}
+
 void LLFloaterView::refresh()
 {
 	// Constrain children to be entirely on the screen

indra/llui/llfloater.h

@@ -455,6 +455,7 @@ public:
 	// Given a child of gFloaterView, make sure this view can fit entirely onscreen.
 	void			adjustToFitScreen(LLFloater* floater, BOOL allow_partial_outside);
 
+	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;
@@ -471,6 +472,7 @@ public:
 	// attempt to close all floaters
 	void			closeAllChildren(bool app_quitting);
 	BOOL			allChildrenClosed();
+	void			shiftFloaters(S32 x_offset, S32 y_offset);
 
 	LLFloater* getFrontmost() const;
 	LLFloater* getBackmost() const;
@@ -490,6 +492,7 @@ private:
 	BOOL			mFocusCycleMode;
 	S32				mSnapOffsetBottom;
 	S32				mSnapOffsetRight;
+	S32				mMinimizePositionVOffset;
 };
 
 //

indra/newview/llpaneltopinfobar.cpp

@@ -161,6 +161,8 @@ BOOL LLPanelTopInfoBar::postBuild()
 	mParcelMgrConnection = LLViewerParcelMgr::getInstance()->addAgentParcelChangedCallback(
 			boost::bind(&LLPanelTopInfoBar::onAgentParcelChange, this));
 
+	setVisibleCallback(boost::bind(&LLPanelTopInfoBar::onVisibilityChange, this, _2));
+
 	return TRUE;
 }
 
@@ -174,6 +176,27 @@ void LLPanelTopInfoBar::onNavBarShowParcelPropertiesCtrlChanged()
 	setParcelInfoText(new_text);
 }
 
+// when panel is shown, all minimized floaters should be shifted downwards to prevent overlapping of
+// PanelTopInfoBar. See EXT-7951.
+void LLPanelTopInfoBar::onVisibilityChange(const LLSD& show)
+{
+	// this height is used as a vertical offset for ALREADY MINIMIZED floaters
+	// when PanelTopInfoBar visibility changes
+	S32 height = getRect().getHeight();
+
+	// this vertical offset is used for a start minimize position of floaters that
+	// are NOT MIMIMIZED YET
+	S32 minimize_pos_offset = 0;
+
+	if (show.asBoolean())
+	{
+		height = minimize_pos_offset = -height;
+	}
+
+	gFloaterView->shiftFloaters(0, height);
+	gFloaterView->setMinimizePositionVerticalOffset(minimize_pos_offset);
+}
+
 void LLPanelTopInfoBar::draw()
 {
 	updateParcelInfoText();

indra/newview/llpaneltopinfobar.h

@@ -58,6 +58,11 @@ public:
 	 */
 	void handleLoginComplete();
 
+	/**
+	 * Called when the top info bar gets shown or hidden
+	 */
+	void onVisibilityChange(const LLSD& show);
+
 private:
 	class LLParcelChangeObserver;