3 files changed, 18 insertions, 105 deletions
diff --git a/ui/filter.go b/ui/filter.go
index 0d1746915..5b1faa293 100644
--- a/ui/filter.go
+++ b/ui/filter.go
@@ -1,77 +1 @@
 package ui
-
-import (
-	"github.com/ethereum/go-ethereum/core"
-	"github.com/ethereum/go-ethereum/ethutil"
-)
-
-func fromHex(s string) []byte {
-	if len(s) > 1 {
-		if s[0:2] == "0x" {
-			s = s[2:]
-		}
-		return ethutil.Hex2Bytes(s)
-	}
-	return nil
-}
-
-func NewFilterFromMap(object map[string]interface{}, eth core.Backend) *core.Filter {
-	filter := core.NewFilter(eth)
-
-	if object["earliest"] != nil {
-		val := ethutil.NewValue(object["earliest"])
-		filter.SetEarliestBlock(val.Int())
-	}
-
-	if object["latest"] != nil {
-		val := ethutil.NewValue(object["latest"])
-		filter.SetLatestBlock(val.Int())
-	}
-
-	if object["address"] != nil {
-		//val := ethutil.NewValue(object["address"])
-		//filter.SetAddress(fromHex(val.Str()))
-	}
-
-	if object["max"] != nil {
-		val := ethutil.NewValue(object["max"])
-		filter.SetMax(int(val.Uint()))
-	}
-
-	if object["skip"] != nil {
-		val := ethutil.NewValue(object["skip"])
-		filter.SetSkip(int(val.Uint()))
-	}
-
-	if object["topics"] != nil {
-		filter.SetTopics(MakeTopics(object["topics"]))
-	}
-
-	return filter
-}
-
-// Conversion methodn
-func mapToAccountChange(m map[string]interface{}) (d core.AccountChange) {
-	if str, ok := m["id"].(string); ok {
-		d.Address = fromHex(str)
-	}
-
-	if str, ok := m["at"].(string); ok {
-		d.StateAddress = fromHex(str)
-	}
-
-	return
-}
-
-// data can come in in the following formats:
-// ["aabbccdd", {id: "ccddee", at: "11223344"}], "aabbcc", {id: "ccddee", at: "1122"}
-func MakeTopics(v interface{}) (d [][]byte) {
-	if str, ok := v.(string); ok {
-		d = append(d, fromHex(str))
-	} else if slice, ok := v.([]string); ok {
-		for _, item := range slice {
-			d = append(d, fromHex(item))
-		}
-	}
-	return
-}
diff --git a/ui/frontend.go b/ui/frontend.go
new file mode 100644
index 000000000..22dc64fdf
--- /dev/null
+++ b/ui/frontend.go
@@ -0,0 +1,18 @@
+package ui
+
+// ReturnInterface is returned by the Intercom interface when a method is called
+type ReturnInterface interface {
+	Get(i int) (interface{}, error)
+	Size() int
+}
+
+// Frontend is the basic interface for calling arbitrary methods on something that
+// implements a front end (GUI, CLI, etc)
+type Frontend interface {
+	// Checks whether a specific method is implemented
+	Supports(method string) bool
+	// Call calls the given method on interface it implements. This will return
+	// an error with errNotImplemented if the method hasn't been implemented
+	// and will return a ReturnInterface if it does.
+	Call(method string) (ReturnInterface, error)
+}
diff --git a/ui/qt/filter.go b/ui/qt/filter.go
index 48e8a7fae..090260e4e 100644
--- a/ui/qt/filter.go
+++ b/ui/qt/filter.go
@@ -1,30 +1 @@
 package qt
-
-import (
-	"github.com/ethereum/go-ethereum/core"
-	"github.com/ethereum/go-ethereum/ui"
-	"github.com/obscuren/qml"
-)
-
-func NewFilterFromMap(object map[string]interface{}, eth core.Backend) *core.Filter {
-	filter := ui.NewFilterFromMap(object, eth)
-
-	if object["topics"] != nil {
-		filter.SetTopics(makeTopics(object["topics"]))
-	}
-
-	return filter
-}
-
-func makeTopics(v interface{}) (d [][]byte) {
-	if qList, ok := v.(*qml.List); ok {
-		var s []string
-		qList.Convert(&s)
-
-		d = ui.MakeTopics(s)
-	} else if str, ok := v.(string); ok {
-		d = ui.MakeTopics(str)
-	}
-
-	return
-}