ncHoverBind 

self.button.id = SpellBook_GetSpellBookSlot(self.button)
self.button.name = GetSpellBookItemName(self.button.id, SpellBookFrame.bookType)

bind:SetScript("OnKeyUp", function(self, key) self:Listener(key) end)
bind:SetScript("OnMouseUp", function(self, key) self:Listener(key) end)

-- chaged the following two Script from OnKeyUp to OnKeyDown to fix can't bind a combine key such as SHFT+T, ALT+SHIFT+Q
bind:SetScript("OnKeyDown", function(self, key) self:Listener(key) end)
bind:SetScript("OnMouseDown", function(self, key) self:Listener(key) end)

-- fix can't bind anykey when a macro isn't available
-- must comment the line in OnHide function
-- such as you are Fury Warrior and you have a macro
-- #showtooltip /cast BladeStorm
-- you can't bind any key to this button because OnHide is not called forever
bind.button.bindings = {GetBindingKey(bind.button.bindstring)}
GameTooltip:SetScript("OnHide", function(self)
self:SetOwner(bind, "ANCHOR_NONE")

		function bind:Listener(key)
			-- fix bind the SCREENSHOT key, now press SCREENSHOT key will take a screen shot
			-- GetBindingFromClick
			if GetBindingByKey(key) == "SCREENSHOT" then
				RunBinding("SCREENSHOT");
				return
			end

			-- change behavior to bind only one key for one button
			if #self.button.bindings > 0 then
				for i = 1, #self.button.bindings do
					SetBinding(self.button.bindings[i])
				end
				self:Update(self.button, self.spellmacro)
				if self.spellmacro~="MACRO" then GameTooltip:Hide() end
			end

	if not bind.enabled then
		bind:Activate()
		StaticPopup_Show("KEYBIND_MODE")
		-- fix issue that enter /hb it doesn't display bind tooltip when mouse is over action button
		local stance = ShapeshiftButton1:GetScript("OnClick")
		local pet = PetActionButton1:GetScript("OnClick")
		local button = SecureActionButton_OnClick
		local focus = GetMouseFocus()
		if focus.IsProtected and focus.GetObjectType and focus.GetScript and focus:GetObjectType()=="CheckButton" and focus:IsProtected() then
			local script = focus:GetScript("OnClick")
			if script==button then
				bind:Update(focus)
			elseif script==stance then
				bind:Update(focus, "STANCE")
			elseif script==pet then
				bind:Update(focus, "PET")
			end
		end
	end

-- or key == "MiddleButton"

if key == "MiddleButton" then key = "BUTTON3" end