Added some basic UTF-16 to UTF-8 code. Works nicely with mozilla/seamonkey

clipboard, but messes everything else. More work, more work...
Also added terminating char when strncpy is used. I miss that strlcpy...

eiconman/Jamfile

@@ -10,7 +10,7 @@
 
 SubDir TOP eiconman ;
 
-SOURCE = eiconman.cpp Utils.cpp Wallpaper.cpp DesktopIcon.cpp NotifyBox.cpp ;
+SOURCE = eiconman.cpp Utils.cpp Wallpaper.cpp DesktopIcon.cpp NotifyBox.cpp Utf8.cpp ;
 
 EdeProgram eiconman : $(SOURCE) ;
 TranslationStrings locale : $(SOURCE) ;

eiconman/Utf8.cpp

@@ -0,0 +1,48 @@
+#include "Utf8.h"
+
+int utf16_to_utf8(unsigned int from, char* to) {
+	if(from < 0x000080) {
+		to[0] = from;
+		return 1;
+	} else if(from < 0x000800) {
+		to[0] = 0xC0 | (from >> 6);
+		to[1] = 0x80 | (from & 0x3F);
+		return 2;
+	} else if(from < 0x010000) {
+		to[0] = 0xE0 | (from >> 12);
+		to[1] = 0x80 | ((from >> 6) & 0x3F);
+		to[2] = 0x80 | (from & 0x3F);
+		return 3;
+	} else if(from < 0x00200000) {
+		to[0] = 0xF0 | (from >> 18);
+		to[1] = 0x80 | ((from >> 12) & 0x3F);
+		to[2] = 0x80 | ((from >> 6) & 0x3F);
+		to[3] = 0x80 | (from & 0x3F);
+		return 4;
+	} else if(from < 0x01000000) {
+		to[0] = 0xF8 | (from >> 24);
+		to[1] = 0x80 | ((from >> 18) & 0x3F);
+		to[2] = 0x80 | ((from >> 12) & 0x3F);
+		to[3] = 0x80 | ((from >> 6) & 0x3F);
+		to[4] = 0x80 | (from & 0x3F);
+		return 5;
+	}
+	to[0] = '?';
+	return -1;
+}
+
+int utf16_to_utf8_str(unsigned short* from, int len, char* to) {
+	int j = 0;
+	for(int i = 0; i < len; i++) {
+		int s = utf16_to_utf8((unsigned int)from[i], to + j);
+		if(s < 1) 
+			j += 1;
+		else
+			j += s;
+	}
+	return j;
+}
+
+bool is_utf16(unsigned short* from, int len) {
+	return !(from[0] < 0x000080);
+}

eiconman/Utf8.h

@@ -0,0 +1,13 @@
+#ifndef __UTF8_H__
+#define __UTF8_H__
+
+// 'to' must be at least 5 bytes long
+int utf16_to_utf8(unsigned int from, char* to);
+
+// 'to' must be at least len * 5 long
+int utf16_to_utf8_str(unsigned short* from, int len, char* to);
+
+// check if characters are in UTF-16 encoding
+bool is_utf16(unsigned short* from, int len);
+
+#endif

eiconman/Utils.cpp

@@ -173,6 +173,7 @@ bool ede_get_desktop_notify(char* txt, int txt_len) {
 	}
 
 	strncpy(txt, vnames[0], txt_len);
+	txt[txt_len] = '\0';
 	XFreeStringList(vnames);
 	return true;
 }

eiconman/eiconman.cpp

@@ -15,6 +15,7 @@
 #include "Utils.h"
 #include "Wallpaper.h"
 #include "NotifyBox.h"
+#include "Utf8.h"
 
 #include <edelib/Debug.h>
 #include <edelib/File.h>
@@ -678,10 +679,25 @@ void Desktop::drop_source(const char* src, int src_len, int x, int y) {
 	if(src_len < 1)
 		return;
 
+#if 0
+	/*
+	 * Commented for now since is_utf16() does not works as expected;
+	 * on other hand, UTF-16 conversion is fine
+	 */
+	if(is_utf16((unsigned short*)src, src_len)) {
+		char* utf_src = new char[src_len * 5];
+		if(utf16_to_utf8_str((unsigned short*)src, src_len, utf_src)) {
+			utf_src[src_len] = '\0';
+			EDEBUG(ESTRLOC ":==========> %s|\n", utf_src);
+		}
+
+		delete [] utf_src;
+	}
+#endif
 	char* src_copy = new char[src_len + 1];
 	int real_len = 0;
 
-	// mozilla sends junk in form: ascii<0>ascii<0>..., don't know why
+	// mozilla sends UTF-16 form; for now use this hack untill Utf8.cpp code is ready
 	for(int i = 0, j = 0; i < src_len; i++) {
 		if(src[i] != 0) {
 			src_copy[j++] = src[i];