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samterm: don't treat chords as the start of a double click (thanks hiro)

same as for rio, clicking too fast after a paste chord was often
selecting text in error instead.  here we can't cancel so we just
age the previous click timer.

--- a/sys/src/cmd/samterm/main.c

+++ b/sys/src/cmd/samterm/main.c

@@ -31,7 +31,7 @@

 void

 threadmain(int argc, char *argv[])

 {

-	int i, got, nclick, scr, chord;

+	int i, got, nclick, scr, chord, noTt;

 	Text *t;

 	Rectangle r;

 	Flayer *nwhich;

@@ -55,6 +55,7 @@

 	outTs(Tversion, VERSION);

 	startnewfile(Tstartcmdfile, &cmd);

+	noTt = 0;

 	got = 0;

 	chord = 0;

 	for(;;got = waitforio()){

@@ -91,6 +92,9 @@

 				t = (Text *)which->user1;

 				if(!t->lock){

 					int w = which-t->l;

+					/* fire doubleclick timer */

+					if(chord&6)

+						noTt = 1;

 					if(chord&2){

 						cut(t, w, 1, 1);

 						chord &= ~2;

@@ -110,6 +114,10 @@

 						extendsel(which);

 					else{

 						t = which->user1;

+						if(noTt == 1){

+							which->click -= Clicktime;

+							noTt =0;

+						}

 						nclick = flselect(which);

 						if(nclick > 0){

 							if(nclick > 1)

-- 

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