From 879d15903608b26f6b10f499d150bb72a65fa966 Mon Sep 17 00:00:00 2001
From: Monroe Linden <monroe@lindenlab.com>
Date: Mon, 9 Aug 2010 17:40:17 -0700
Subject: Limit the number of media browser windows the viewer will open at
 once.

The limit is controlled by the debug setting MediaBrowserWindowLimit.

When opening a new window would take us over the limit, the least recently opened window will be closed first.
---
 indra/newview/app_settings/settings.xml | 11 +++++++++++
 indra/newview/llfloatermediabrowser.cpp | 26 +++++++++++++++++++++++++-
 indra/newview/llfloatermediabrowser.h   |  1 +
 3 files changed, 37 insertions(+), 1 deletion(-)

diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index 4c52fb015f..3326319e2d 100644
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -6425,6 +6425,17 @@
         <key>Value</key>
             <real>1.0</real>
         </map>
+    <key>MediaBrowserWindowLimit</key>
+    <map>
+      <key>Comment</key>
+      <string>Maximum number of media brower windows that can be open at once (0 for no limit)</string>
+      <key>Persist</key>
+      <integer>1</integer>
+      <key>Type</key>
+      <string>S32</string>
+      <key>Value</key>
+      <integer>5</integer>
+    </map>
   <key>MediaRollOffRate</key>
   <map>
     <key>Comment</key>
diff --git a/indra/newview/llfloatermediabrowser.cpp b/indra/newview/llfloatermediabrowser.cpp
index 268a0e0b93..2fc5bd72de 100644
--- a/indra/newview/llfloatermediabrowser.cpp
+++ b/indra/newview/llfloatermediabrowser.cpp
@@ -76,8 +76,32 @@ void LLFloaterMediaBrowser::create(const std::string &url, const std::string& ta
 		tag = id.asString();
 	}
 	
-	// TODO: Figure out whether we need to close an existing instance and/or warn the user about the number of instances they have open
+	S32 browser_window_limit = gSavedSettings.getS32("MediaBrowserWindowLimit");
 	
+	if(LLFloaterReg::findInstance("media_browser", tag) != NULL)
+	{
+		// There's already a media browser for this tag, so we won't be opening a new window.
+	}
+	else if(browser_window_limit != 0)
+	{
+		// showInstance will open a new window.  Figure out how many media browsers are already open, 
+		// and close the least recently opened one if this will put us over the limit.
+		
+		LLFloaterReg::const_instance_list_t &instances = LLFloaterReg::getFloaterList("media_browser");
+		lldebugs << "total instance count is " << instances.size() << llendl;
+		
+		for(LLFloaterReg::const_instance_list_t::const_iterator iter = instances.begin(); iter != instances.end(); iter++)
+		{
+			lldebugs << "    " << (*iter)->getKey() << llendl;
+		}
+		
+		if(instances.size() >= browser_window_limit)
+		{
+			// Destroy the least recently opened instance
+			(*instances.begin())->closeFloater();
+		}
+	}
+
 	LLFloaterMediaBrowser *browser = dynamic_cast<LLFloaterMediaBrowser*> (LLFloaterReg::showInstance("media_browser", tag));
 	llassert(browser);
 	if(browser)
diff --git a/indra/newview/llfloatermediabrowser.h b/indra/newview/llfloatermediabrowser.h
index 1645ed4613..4255d814c0 100644
--- a/indra/newview/llfloatermediabrowser.h
+++ b/indra/newview/llfloatermediabrowser.h
@@ -45,6 +45,7 @@ class LLFloaterMediaBrowser :
 	public LLViewerMediaObserver
 {
 public:
+    LOG_CLASS(LLFloaterMediaBrowser);
 	LLFloaterMediaBrowser(const LLSD& key);
 
 	static void create(const std::string &url, const std::string& target);
-- 
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