EXT-7104 WIP Implemented a functionality to control the width of the chat entry field.

* LLResizeBar calls notifyParent on resizing before changing rect of view, bottomtray processed this notification to update other buttons.
* Had to move setup of buttons visibility on startup into LLBottomTray to ensure all buttons have necessary visibility BEFORE restore the width of the chat entry field;
* Updated layout between chatbar and speak button to show resize mouse pointer in the middle between them.

Implemented behavior: visible buttons shrink to their minimal width when the chat entry field gets wider.

Also were refactored:
* moved declaration of settings related to buttons visibility from the settings.xml to LLBottomTray.
* moved setting of control listeners to LLBottomTray.

Reviewed by Vadim Savchuk at https://codereview.productengine.com/secondlife/r/403/

--HG--
branch : product-engine

1 files changed, 11 insertions, 0 deletions

diff --git a/indra/newview/llbottomtray.h b/indra/newview/llbottomtray.h
index 5588aefb42..74b8ed0d87 100644
--- a/indra/newview/llbottomtray.h
+++ b/indra/newview/llbottomtray.h
@@ -341,6 +341,17 @@ private:
 	 */
 	void showWellButton(EResizeState object_type, bool visible);
 
+	/**
+	 * Handles a customization of chatbar width.
+	 *
+	 * When chatbar gets wider layout stack will reduce chiclet panel (it is auto-resizable)
+	 *	But once chiclet panel reaches its minimal width Stack will force to reduce buttons width.
+	 *	including Speak button. The similar behavior is when chatbar gets narrowly.
+	 * This methods force resize behavior to resize buttons properly in these cases.
+	 */
+	void processChatbarCustomization(S32 new_width);
+
+
 	MASK mResizeState;
 
 	typedef std::map<EResizeState, LLPanel*> state_object_map_t;