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

2 files changed, 11 insertions, 8 deletions

diff --git a/indra/newview/skins/default/xui/en/panel_bottomtray.xml b/indra/newview/skins/default/xui/en/panel_bottomtray.xml
index 2cb91fe1f0..0840812826 100644
--- a/indra/newview/skins/default/xui/en/panel_bottomtray.xml
+++ b/indra/newview/skins/default/xui/en/panel_bottomtray.xml
@@ -48,29 +48,32 @@
          left="0"
          max_width="320"
          min_height="23"
-         min_width="216"
+         min_width="214"
          mouse_opaque="false"
          name="chat_bar"
          top="4"
-         user_resize="false"
-         width="310" />
+         user_resize="true"
+         width="308" />
+        <!--
+        There is resize bar between chatbar and Speak button. It has 2px width (is is set as 2*UIResizeBarOverlap)
+        -->
         <layout_panel
          auto_resize="false"
          follows="right"
          height="28"
          layout="topleft"
          min_height="28"
-         min_width="57"
+         min_width="59"
          mouse_opaque="false"
          name="speak_panel"
          top_delta="0"
          user_resize="false"
-         width="108">
+         width="110">
             <talk_button
              follows="left|right"
              height="23"
              layout="topleft"
-             left="0"
+             left="2"
              name="talk"
              top="5"
              width="105">
@@ -190,7 +193,7 @@
          min_width="40"
          mouse_opaque="false"
          name="snapshot_panel"
-         width="40">
+         width="39">
             <button
              follows="left|right"
              height="23"
diff --git a/indra/newview/skins/default/xui/en/panel_nearby_chat_bar.xml b/indra/newview/skins/default/xui/en/panel_nearby_chat_bar.xml
index 5dbd8bfe6a..55df70eb71 100644
--- a/indra/newview/skins/default/xui/en/panel_nearby_chat_bar.xml
+++ b/indra/newview/skins/default/xui/en/panel_nearby_chat_bar.xml
@@ -7,7 +7,7 @@
  left="0"
  name="chat_bar"
  top="21"
- width="310">
+ width="308">
     <line_editor
      border_style="line"
      border_thickness="1"