From 3a14aae31062a84aa342136dc9264cc978d761b9 Mon Sep 17 00:00:00 2001
From: faiface <faiface@ksp.sk>
Date: Wed, 10 May 2017 21:10:10 +0200
Subject: [PATCH] add Window.Typed

---
 pixelgl/input.go  | 14 ++++++++++++++
 pixelgl/window.go |  1 +
 2 files changed, 15 insertions(+)

diff --git a/pixelgl/input.go b/pixelgl/input.go
index 1af9977..0a4ed9c 100644
--- a/pixelgl/input.go
+++ b/pixelgl/input.go
@@ -31,6 +31,11 @@ func (w *Window) MouseScroll() pixel.Vec {
 	return w.currInp.scroll
 }
 
+// Typed returns the text typed on the keyboard since the last call to Window.Update.
+func (w *Window) Typed() string {
+	return w.currInp.typed
+}
+
 // Button is a keyboard or mouse button. Why distinguish?
 type Button int
 
@@ -350,16 +355,25 @@ func (w *Window) initInput() {
 		w.window.SetScrollCallback(func(_ *glfw.Window, xoff, yoff float64) {
 			w.currInp.scroll += pixel.V(xoff, yoff)
 		})
+
+		w.window.SetCharCallback(func(_ *glfw.Window, r rune) {
+			w.currInp.typed += string(r)
+		})
 	})
 }
 
 func (w *Window) updateInput() {
+	//FIXME: rething this, currInp can be changed outside this function, which may lead to inconsistencies
+
 	// copy temp to prev
 	w.prevInp = w.tempInp
 
 	// zero current scroll (but keep what was added in callbacks outside of this function)
 	w.currInp.scroll -= w.tempInp.scroll
 
+	// erase typed string
+	w.currInp.typed = ""
+
 	// get events (usually calls callbacks, but callbacks can be called outside too)
 	mainthread.Call(func() {
 		glfw.PollEvents()
diff --git a/pixelgl/window.go b/pixelgl/window.go
index 36a8da3..7ad4f1b 100644
--- a/pixelgl/window.go
+++ b/pixelgl/window.go
@@ -69,6 +69,7 @@ type Window struct {
 		mouse   pixel.Vec
 		buttons [KeyLast + 1]bool
 		scroll  pixel.Vec
+		typed   string
 	}
 }