From be2888c12d0928ebfc886f9a532d7c89c10b2e6a Mon Sep 17 00:00:00 2001
From: vCaesar <vzvway@gmail.com>
Date: Fri, 21 Apr 2017 22:53:18 +0800
Subject: [PATCH] Test utf-8

---
 key/keypress_c.h | 86 ++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 79 insertions(+), 7 deletions(-)

diff --git a/key/keypress_c.h b/key/keypress_c.h
index 9be098f..c95fd78 100644
--- a/key/keypress_c.h
+++ b/key/keypress_c.h
@@ -193,14 +193,15 @@ void tapKey(char c, MMKeyFlags flags)
 }
 
 #if defined(IS_MACOSX)
-void toggleUniKey(char c, const bool down)
-{
+
+void toggleUnicodeKey(unsigned long ch, const bool down){
 	/* This function relies on the convenient
 	 * CGEventKeyboardSetUnicodeString(), which allows us to not have to
 	 * convert characters to a keycode, but does not support adding modifier
 	 * flags. It is therefore only used in typeString() and typeStringDelayed()
 	 * -- if you need modifier keys, use the above functions instead. */
-	UniChar ch = (UniChar)c; /* Convert to unsigned char */
+
+	// UniChar ch = (UniChar)c; /* Convert to unsigned char */
 
 	CGEventRef keyEvent = CGEventCreateKeyboardEvent(NULL, 0, down);
 	if (keyEvent == NULL) {
@@ -208,11 +209,33 @@ void toggleUniKey(char c, const bool down)
 		return;
 	}
 
-	CGEventKeyboardSetUnicodeString(keyEvent, 1, &ch);
+	// CGEventKeyboardSetUnicodeString(keyEvent, 1, &ch);
 
+	///////
+	if (ch > 0xFFFF) {
+		// encode to utf-16 if necessary
+		unsigned short surrogates[] = {
+			0xD800 + ((ch - 0x10000) >> 10),
+			0xDC00 + (ch & 0x3FF)
+		};
+
+		// CGEventKeyboardSetUnicodeString(keyEvent, 2, &surrogates);
+		UniChar ach = (UniChar)surrogates;
+		CGEventKeyboardSetUnicodeString(keyEvent, 2, &ach);
+	} else {
+		// CGEventKeyboardSetUnicodeString(keyEvent, 1, &ch);
+		UniChar ach = (UniChar)ch;
+		CGEventKeyboardSetUnicodeString(keyEvent, 1, &ach);
+	}
+
+	///////
 	CGEventPost(kCGSessionEventTap, keyEvent);
 	CFRelease(keyEvent);
 }
+
+void toggleUniKey(char c, const bool down){
+	toggleUnicodeKey(c, down);
+}
 #else
 	#define toggleUniKey(c, down) toggleKey(c, down, MOD_NONE)
 #endif
@@ -223,13 +246,62 @@ static void tapUniKey(char c)
 	toggleUniKey(c, false);
 }
 
-void typeString(const char *str)
-{
+void typeString(const char *str){
+	// while (*str != '\0') {
+	// 	tapUniKey(*str++);
+	// }
+
+	unsigned short c;
+	unsigned short c1;
+	unsigned short c2;
+	unsigned short c3;
+	unsigned long n;
+
 	while (*str != '\0') {
-		tapUniKey(*str++);
+		c = *str++;
+
+		// warning, the following utf8 decoder
+		// doesn't perform validation
+		if (c <= 0x7F) {
+			// 0xxxxxxx one byte
+			n = c;
+		} else if ((c & 0xE0) == 0xC0)  {
+			// 110xxxxx two bytes
+			c1 = (*str++) & 0x3F;
+			n = ((c & 0x1F) << 6) | c1;
+		} else if ((c & 0xF0) == 0xE0) {
+			// 1110xxxx three bytes
+			c1 = (*str++) & 0x3F;
+			c2 = (*str++) & 0x3F;
+			n = ((c & 0x0F) << 12) | (c1 << 6) | c2;
+		} else if ((c & 0xF8) == 0xF0) {
+			// 11110xxx four bytes
+			c1 = (*str++) & 0x3F;
+			c2 = (*str++) & 0x3F;
+			c3 = (*str++) & 0x3F;
+			n = ((c & 0x07) << 18) | (c1 << 12) | (c2 << 6) | c3;
+		}
+
+		// printf("n-------------%zd\n", n);
+
+		#if defined(IS_MACOSX)
+			toggleUnicodeKey(n, true);
+			toggleUnicodeKey(n, false);
+		#else
+			toggleUniKey(n, true);
+			toggleUniKey(n, false);
+		#endif
+
 	}
 }
 
+// void typeString(const char *str)
+// {
+// 	while (*str != '\0') {
+// 		tapUniKey(*str++);
+// 	}
+// }
+
 void typeStringDelayed(const char *str, const unsigned cpm)
 {
 	/* Characters per second */