From 19758fae439cffad8adaf64f2e8f74ae452816ee Mon Sep 17 00:00:00 2001
From: Steven Barth <steven@midlink.org>
Date: Sun, 22 Nov 2009 20:32:56 +0000
Subject: [PATCH] CBI: Implement reverse dependencies Allow wiazrd steps
 without buttons

---
 libs/cbi/htdocs/luci-static/resources/cbi.js | 17 ++++++++++++++---
 libs/cbi/luasrc/cbi.lua                      |  1 +
 libs/cbi/luasrc/view/cbi/delegator.htm       |  4 +++-
 libs/cbi/luasrc/view/cbi/header.htm          |  2 +-
 4 files changed, 19 insertions(+), 5 deletions(-)

diff --git a/libs/cbi/htdocs/luci-static/resources/cbi.js b/libs/cbi/htdocs/luci-static/resources/cbi.js
index 004e12eaa..7ba81189e 100644
--- a/libs/cbi/htdocs/luci-static/resources/cbi.js
+++ b/libs/cbi/htdocs/luci-static/resources/cbi.js
@@ -59,15 +59,26 @@ function cbi_d_checkvalue(target, ref) {
 }
 
 function cbi_d_check(deps) {
+	var reverse;
+	var def = false;
 	for (var i=0; i<deps.length; i++) {
-		var istat = true
+		var istat = true;
+		reverse = false;
 		for (var j in deps[i]) {
-			istat = (istat && cbi_d_checkvalue(j, deps[i][j]))
+			if (j.slice(-8) == "!reverse") {
+				reverse = true;
+			} else if (j.slice(-8) == "!default") {
+				def = true;
+				istat = false;
+			} else {
+				istat = (istat && cbi_d_checkvalue(j, deps[i][j]))
+			}
 		}
 		if (istat) {
-			return true
+			return !reverse;
 		}
 	}
+	return def;
 }
 
 function cbi_d_update() {
diff --git a/libs/cbi/luasrc/cbi.lua b/libs/cbi/luasrc/cbi.lua
index 9b947cb2f..e26558974 100644
--- a/libs/cbi/luasrc/cbi.lua
+++ b/libs/cbi/luasrc/cbi.lua
@@ -616,6 +616,7 @@ function Delegator.parse(self, ...)
 		self.current = newcurrent or self.current
 		self.active = self:get(self.current)
 		if type(self.active) ~= "function" then
+			self.active:populate_delegator(self)
 			self.active:parse(false)
 			return FROM_PROCEED
 		else
diff --git a/libs/cbi/luasrc/view/cbi/delegator.htm b/libs/cbi/luasrc/view/cbi/delegator.htm
index 08c1fe7c3..a4a62af64 100644
--- a/libs/cbi/luasrc/view/cbi/delegator.htm
+++ b/libs/cbi/luasrc/view/cbi/delegator.htm
@@ -17,6 +17,7 @@ $Id$
 <% for _, x in ipairs(self.chain) do %>
 		<input type="hidden" name="cbi.delg.path" value="<%=x%>" />
 <% end %>
+<% if not self.disallow_pageactions then %>
 <% if self.allow_back and self:get_prev(self.current) then %>
 		<input class="cbi-button cbi-button-back" type="submit" name="cbi.delg.back" value="<%:« Back%>" />
 <% end %>
@@ -30,6 +31,7 @@ $Id$
 	<input class="cbi-button cbi-button-finish" type="submit" value="<%:Finish%>" />
 <% elseif self:get_next(self.current) then %>
 		<input class="cbi-button cbi-button-next" type="submit" value="<%:Next »%>" />
+<% end %>
 <% end %>
 		<script type="text/javascript">cbi_d_update();</script>
-	</div>
+	</div>
\ No newline at end of file
diff --git a/libs/cbi/luasrc/view/cbi/header.htm b/libs/cbi/luasrc/view/cbi/header.htm
index c831b0df1..bece16bb2 100644
--- a/libs/cbi/luasrc/view/cbi/header.htm
+++ b/libs/cbi/luasrc/view/cbi/header.htm
@@ -14,7 +14,7 @@ $Id$
 -%>
 
 <%+header%>
-<form method="post" action="<%=REQUEST_URI%>" enctype="multipart/form-data">
+<form method="post" name="cbi" action="<%=REQUEST_URI%>" enctype="multipart/form-data">
 	<div>
 		<script type="text/javascript" src="<%=resource%>/cbi.js"></script>
 		<input type="hidden" name="cbi.submit" value="1" />
-- 
2.25.1