From 1b07c1d7fb5b6d3ce15083bc3dbb65a3f0ac8006 Mon Sep 17 00:00:00 2001
From: Monroe Linden <monroe@lindenlab.com>
Date: Fri, 20 Nov 2009 17:49:52 -0800
Subject: Fix for DEV-43040 (Change media focus rules to be the same as
 alt-zoom).

Added an optional reset_camera parameter to LLPanelPrimMediaControls ::resetZoomLevel(). Default is true, but if false it prevents the reset from moving the camera, and just resets the internal state for zoom tracking.

Fixed zoom-related bugs in LLPanelPrimMediaControls::close() and LLPanelPrimMediaControls::onClickZoom().

Changed the zooming behavior in LLViewerMediaFocus to match the desired behavior.
---
 indra/newview/llpanelprimmediacontrols.cpp | 16 +++++++++++-----
 indra/newview/llpanelprimmediacontrols.h   |  2 +-
 indra/newview/llviewermediafocus.cpp       | 28 ++++++++++++++++++++++++----
 3 files changed, 36 insertions(+), 10 deletions(-)

diff --git a/indra/newview/llpanelprimmediacontrols.cpp b/indra/newview/llpanelprimmediacontrols.cpp
index aca0e1d5c7..529912929d 100644
--- a/indra/newview/llpanelprimmediacontrols.cpp
+++ b/indra/newview/llpanelprimmediacontrols.cpp
@@ -782,8 +782,8 @@ void LLPanelPrimMediaControls::onClickClose()
 
 void LLPanelPrimMediaControls::close()
 {
+	resetZoomLevel(true);
 	LLViewerMediaFocus::getInstance()->clearFocus();
-	resetZoomLevel();
 	setVisible(FALSE);
 }
 
@@ -921,8 +921,11 @@ void LLPanelPrimMediaControls::onClickSkipForward()
 void LLPanelPrimMediaControls::onClickZoom()
 {
 	focusOnTarget();
-
-	nextZoomLevel();
+	
+	if(mCurrentZoom == ZOOM_NONE)
+	{
+		nextZoomLevel();
+	}
 }
 
 void LLPanelPrimMediaControls::nextZoomLevel()
@@ -941,12 +944,15 @@ void LLPanelPrimMediaControls::nextZoomLevel()
 	updateZoom();
 }
 
-void LLPanelPrimMediaControls::resetZoomLevel()
+void LLPanelPrimMediaControls::resetZoomLevel(bool reset_camera)
 {
 	if(mCurrentZoom != ZOOM_NONE)
 	{
 		mCurrentZoom = ZOOM_NONE;
-		updateZoom();
+		if(reset_camera)
+		{
+			updateZoom();
+		}
 	}
 }
 
diff --git a/indra/newview/llpanelprimmediacontrols.h b/indra/newview/llpanelprimmediacontrols.h
index 54fc4e343f..accfb72a04 100644
--- a/indra/newview/llpanelprimmediacontrols.h
+++ b/indra/newview/llpanelprimmediacontrols.h
@@ -58,7 +58,7 @@ public:
 	void updateShape();
 	bool isMouseOver();
 	void nextZoomLevel();
-	void resetZoomLevel();
+	void resetZoomLevel(bool reset_camera = true);
 	void close();
 
 	LLHandle<LLPanelPrimMediaControls>	getHandle() const { return mPanelHandle; }
diff --git a/indra/newview/llviewermediafocus.cpp b/indra/newview/llviewermediafocus.cpp
index 70a7d835a3..fd74c9c2fc 100644
--- a/indra/newview/llviewermediafocus.cpp
+++ b/indra/newview/llviewermediafocus.cpp
@@ -120,10 +120,20 @@ void LLViewerMediaFocus::setFocusFace(LLPointer<LLViewerObject> objectp, S32 fac
 		// We must do this before  processing the media HUD zoom, or it may zoom to the wrong face. 
 		update();
 
-		if(mMediaControls.get() && face_auto_zoom && ! parcel->getMediaPreventCameraZoom())
+		if(mMediaControls.get())
 		{
-			mMediaControls.get()->resetZoomLevel();
-			mMediaControls.get()->nextZoomLevel();
+			if(face_auto_zoom && ! parcel->getMediaPreventCameraZoom())
+			{
+				// Zoom in on this face
+				mMediaControls.get()->resetZoomLevel();
+				mMediaControls.get()->nextZoomLevel();
+			}
+			else
+			{
+				// Reset the controls' zoom level without moving the camera.
+				// This fixes the case where clicking focus between two non-autozoom faces doesn't change the zoom-out button back to a zoom-in button.
+				mMediaControls.get()->resetZoomLevel(false);
+			}
 		}
 	}
 	else
@@ -132,7 +142,8 @@ void LLViewerMediaFocus::setFocusFace(LLPointer<LLViewerObject> objectp, S32 fac
 		{
 			if(mMediaControls.get())
 			{
-				mMediaControls.get()->resetZoomLevel();
+				// Don't reset camera zoom by default, just tell the controls they're no longer controlling zoom.
+				mMediaControls.get()->resetZoomLevel(false);
 			}
 		}
 
@@ -292,6 +303,15 @@ BOOL LLViewerMediaFocus::handleKey(KEY key, MASK mask, BOOL called_from_parent)
 
 		if (key == KEY_ESCAPE)
 		{
+			// Reset camera zoom in this case.
+			if(mFocusedImplID.notNull())
+			{
+				if(mMediaControls.get())
+				{
+					mMediaControls.get()->resetZoomLevel(true);
+				}
+			}
+			
 			clearFocus();
 		}
 	}
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