Add hooks for every action that's bindable

cmd/micro/bindings.go

@@ -9,7 +9,6 @@ import (
 	"time"
 
 	"github.com/mitchellh/go-homedir"
-	"github.com/yuin/gopher-lua"
 	"github.com/zyedidia/clipboard"
 	"github.com/zyedidia/tcell"
 )
@@ -614,16 +613,6 @@ func (v *View) Save() bool {
 	} else {
 		messenger.Message("Saved " + v.Buf.Path)
 	}
-	for _, pl := range loadedPlugins {
-		if err := L.CallByParam(lua.P{
-			Fn:      L.GetGlobal(pl + "_onSave"),
-			NRet:    0,
-			Protect: true,
-		}); err != nil {
-			// The function isn't defined by this plugin
-			messenger.Error(err)
-		}
-	}
 	return true
 }
 

cmd/micro/plugin.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"github.com/yuin/gopher-lua"
 	"io/ioutil"
 )
 
@@ -10,6 +11,22 @@ var preInstalledPlugins = []string{
 	"go",
 }
 
+// Call calls the lua function 'function'
+// If it does not exist nothing happens, if there is an error,
+// the error is returned
+func Call(function string) error {
+	luaFunc := L.GetGlobal(function)
+	if luaFunc.String() == "nil" {
+		return nil
+	}
+	err := L.CallByParam(lua.P{
+		Fn:      luaFunc,
+		NRet:    0,
+		Protect: true,
+	})
+	return err
+}
+
 // LoadPlugins loads the pre-installed plugins and the plugins located in ~/.config/micro/plugins
 func LoadPlugins() {
 	files, _ := ioutil.ReadDir(configDir + "/plugins")

cmd/micro/view.go

@@ -2,6 +2,8 @@ package main
 
 import (
 	"io/ioutil"
+	"reflect"
+	"runtime"
 	"strconv"
 	"strings"
 	"time"
@@ -266,6 +268,13 @@ func (v *View) HandleEvent(event tcell.Event) {
 			for key, action := range bindings {
 				if e.Key() == key {
 					relocate = action(v)
+					for _, pl := range loadedPlugins {
+						funcName := strings.Split(runtime.FuncForPC(reflect.ValueOf(action).Pointer()).Name(), ".")
+						err := Call(pl + "_on" + funcName[len(funcName)-1])
+						if err != nil {
+							TermMessage(err)
+						}
+					}
 				}
 			}
 		}