OCIAL-231 FIX Enable tooltips (for links and images)

Added the necessary plumbing to get link_hovered events from the webkit plugin through to the viewer UI.

This requires a llqtwebkit library built from revision 1799a899e06d or later in http://hg.secondlife.com/llqtwebkit to function.  The viewer source changes are backwards-compatible with earlier versions of llqtwebkit, it just won't see any link_hovered events with previous revisions.

Reviewed by Callum.

1 files changed, 46 insertions, 2 deletions

diff --git a/indra/newview/llmediactrl.cpp b/indra/newview/llmediactrl.cpp
index 54c7d361b7..08d07f9540 100644
--- a/indra/newview/llmediactrl.cpp
+++ b/indra/newview/llmediactrl.cpp
@@ -25,7 +25,7 @@
  */
 
 #include "llviewerprecompiledheaders.h"
-
+#include "lltooltip.h"
 
 #include "llmediactrl.h"
 
@@ -351,7 +351,8 @@ LLMediaCtrl::LLMediaCtrl( const Params& p) :
 	mClearCache(false),
 	mHomePageMimeType(p.initial_mime_type),
 	mTrusted(p.trusted_content),
-	mWindowShade(NULL)
+	mWindowShade(NULL),
+	mHoverTextChanged(false)
 {
 	{
 		LLColor4 color = p.caret_color().get();
@@ -433,6 +434,13 @@ BOOL LLMediaCtrl::handleHover( S32 x, S32 y, MASK mask )
 		mMediaSource->mouseMove(x, y, mask);
 		gViewerWindow->setCursor(mMediaSource->getLastSetCursor());
 	}
+	
+	// TODO: Is this the right way to handle hover text changes driven by the plugin?
+	if(mHoverTextChanged)
+	{
+		mHoverTextChanged = false;
+		handleToolTip(x, y, mask);
+	}
 
 	return TRUE;
 }
@@ -449,6 +457,35 @@ BOOL LLMediaCtrl::handleScrollWheel( S32 x, S32 y, S32 clicks )
 }
 
 ////////////////////////////////////////////////////////////////////////////////
+//	virtual 
+BOOL LLMediaCtrl::handleToolTip(S32 x, S32 y, MASK mask)
+{
+	std::string hover_text;
+	
+	if (mMediaSource && mMediaSource->hasMedia())
+		hover_text = mMediaSource->getMediaPlugin()->getHoverText();
+	
+	if(hover_text.empty())
+	{
+		return FALSE;
+	}
+	else
+	{
+		S32 screen_x, screen_y;
+
+		localPointToScreen(x, y, &screen_x, &screen_y);
+		LLRect sticky_rect_screen;
+		sticky_rect_screen.setCenterAndSize(screen_x, screen_y, 20, 20);
+
+		LLToolTipMgr::instance().show(LLToolTip::Params()
+			.message(hover_text)
+			.sticky_rect(sticky_rect_screen));		
+	}
+
+	return TRUE;
+}
+
+////////////////////////////////////////////////////////////////////////////////
 //
 BOOL LLMediaCtrl::handleMouseUp( S32 x, S32 y, MASK mask )
 {
@@ -1270,6 +1307,13 @@ void LLMediaCtrl::handleMediaEvent(LLPluginClassMedia* self, EMediaEvent event)
 			LLNotifications::instance().add(auth_request_params);
 		};
 		break;
+
+		case MEDIA_EVENT_LINK_HOVERED:
+		{
+			LL_DEBUGS("Media") <<  "Media event:  MEDIA_EVENT_LINK_HOVERED, hover text is: " << self->getHoverText() << LL_ENDL;
+			mHoverTextChanged = true;
+		};
+		break;
 	};
 
 	// chain all events to any potential observers of this object.