nvim: implements Notify, OpenTerm and HideWindow following neovim/neovim@b274b98 (#113)

* nvim: ignore nvim_chan_send because FUNC_API_LUA_ONLY

* nvim: add LogLevel

* nvim: add nvim_notify to specialAPIs for implements handy

* nvim: implements Notify

* nvim: go generate

* nvim: remove unnecessary Anchor empty value

* nvim: add OpenTerm testcase

* nvim: add HideWindow testcase

* nvim: add Notify testcase

Author: zchee

nvim/api.go

@@ -422,6 +422,27 @@ func CreateBuffer(listed, scratch bool) (buffer Buffer) {
 	name(nvim_create_buf)
 }
 
+// OpenTerm opens a terminal instance in a buffer.
+//
+// By default (and currently the only option) the terminal will not be
+// connected to an external process. Instead, input send on the channel
+// will be echoed directly by the terminal. This is useful to disply
+// ANSI terminal sequences returned as part of a rpc message, or similar.
+//
+// Note that to directly initiate the terminal using the right size, display the
+// buffer in a configured window before calling this. For instance, for a
+// floating display, first create an empty buffer using CreateBuffer,
+// then display it using OpenWindow, and then call this function.
+// Then "nvim_chan_send" cal be called immediately to process sequences
+// in a virtual terminal having the intended size.
+//
+// The buffer arg is the buffer to use (expected to be empty).
+//
+// The opts arg is optional parameters. Reserved for future use.
+func OpenTerm(buffer Buffer, opts map[string]interface{}) (channel int) {
+	name(nvim_open_term)
+}
+
 // OpenWindow open a new window.
 //
 // Currently this is used to open floating and external windows.
@@ -1252,6 +1273,16 @@ func WindowConfig(window Window) (config WindowConfig) {
 	returnPtr()
 }
 
+// HideWindow closes the window and hide the buffer it contains (like ":hide" with a
+// windowID).
+//
+// Like ":hide" the buffer becomes hidden unless another window is editing it,
+// or "bufhidden" is "unload", "delete" or "wipe" as opposed to ":close" or
+// CloseWindow, which will close the buffer.
+func HideWindow(window Window) {
+	name(nvim_win_hide)
+}
+
 // CloseWindow close a window.
 //
 // This is equivalent to |:close| with count except that it takes a window id.

nvim/api_def.go

@@ -420,6 +420,8 @@ var specialAPIs = map[string]bool{
 	"nvim_exec_lua":                true,
 	"nvim_buf_call":                true,
 	"nvim_set_decoration_provider": true,
+	"nvim_chan_send":               true, // FUNC_API_LUA_ONLY
+	"nvim_notify":                  true, // implements underling nlua(vim.notify)
 }
 
 func compareFunctions(functions []*Function) error {

nvim/api_tool.go

@@ -673,6 +673,53 @@ func (b *Batch) ExecuteLua(code string, result interface{}, args ...interface{})
 	b.call("nvim_execute_lua", result, code, args)
 }
 
+// Notify the user with a message.
+//
+// Relays the call to vim.notify. By default forwards your message in the
+// echo area but can be overriden to trigger desktop notifications.
+//
+// The msg arg is message to display to the user.
+//
+// The logLevel arg is the LogLevel.
+//
+// The opts arg is reserved for future use.
+func (v *Nvim) Notify(msg string, logLevel LogLevel, opts map[string]interface{}) error {
+	if logLevel == LogErrorLevel {
+		return v.WritelnErr(msg)
+	}
+
+	chunks := []TextChunk{
+		{
+			Text: msg,
+		},
+	}
+	return v.Echo(chunks, true, opts)
+}
+
+// Notify the user with a message.
+//
+// Relays the call to vim.notify. By default forwards your message in the
+// echo area but can be overriden to trigger desktop notifications.
+//
+// The msg arg is message to display to the user.
+//
+// The logLevel arg is the LogLevel.
+//
+// The opts arg is reserved for future use.
+func (b *Batch) Notify(msg string, logLevel LogLevel, opts map[string]interface{}) {
+	if logLevel == LogErrorLevel {
+		b.WritelnErr(msg)
+		return
+	}
+
+	chunks := []TextChunk{
+		{
+			Text: msg,
+		},
+	}
+	b.Echo(chunks, true, opts)
+}
+
 // decodeExt decodes a MsgPack encoded number to go int value.
 func decodeExt(p []byte) (int, error) {
 	switch {