sacc

commit 7917802325a6f61b516986192096781c27e3bba9
parent 01e24f0999841a8cdfa99027e2be90963742cef0
Author: Quentin Rameau <quinq@fifth.space>
Date:   Fri, 30 Jun 2017 17:39:41 +0200

Add screen-oriented (via terminfo) UI

Diffstat:
M
common.h
 | 
1
+
M
config.mk
 | 
10
+++++++---
M
sacc.c
 | 
2
++
A
ui_ti.c
 | 
173
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

4 files changed, 183 insertions(+), 3 deletions(-)
diff --git a/common.h b/common.h
@@ -9,6 +9,7 @@ struct item {
 	char *port;
 	char *raw;
 	size_t printoff;
+	size_t curline;
 	Item *entry;
 	Dir  *dir;
 };
diff --git a/config.mk b/config.mk
@@ -1,12 +1,16 @@
 # Install paths
 PREFIX = /usr/local
 
-# UI type, txt
+# UI type
+# txt (textual)
 UI=txt
+# ti (screen-oriented)
+#UI=ti
+#UIFLAGS=-lcurses
 
 # Stock FLAGS
-SACCCFLAGS = -D_POSIX_C_SOURCE=200809L $(CFLAGS)
-SACCLDFLAGS = $(LDFLAGS)
+SACCCFLAGS = -D_POSIX_C_SOURCE=200809L -D_DEFAULT_SOURCE $(CFLAGS)
+SACCLDFLAGS = $(UIFLAGS) $(LDFLAGS)
 
 .c.o:
 	$(CC) $(SACCCFLAGS) -c $<
diff --git a/sacc.c b/sacc.c
@@ -170,6 +170,7 @@ molditem(char **raw)
 	item->dir = NULL;
 	item->entry = NULL;
 	item->printoff = 0;
+	item->curline = 0;
 
 	return item;
 }
@@ -406,6 +407,7 @@ moldentry(char *url)
 	entry->port = port;
 	entry->entry = entry;
 	entry->printoff = 0;
+	entry->curline = 0;
 	entry->raw = NULL;
 	entry->dir = NULL;
 
diff --git a/ui_ti.c b/ui_ti.c
@@ -0,0 +1,172 @@
+#include <stdio.h>
+#include <term.h>
+#include <termios.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+#include "common.h"
+
+static struct termios tsave;
+
+void
+uisetup(void)
+{
+	struct termios traw;
+
+	tcgetattr(0, &tsave);
+	traw = tsave;
+	cfmakeraw(&traw);
+	tcsetattr(0, TCSAFLUSH, &traw);
+
+	setupterm(NULL, 1, NULL);
+}
+
+void
+uicleanup(void)
+{
+	tcsetattr(0, TCSAFLUSH, &tsave);
+	putp(tparm(clear_screen));
+}
+
+static void
+printitem(Item *item)
+{
+	printf("%-4s%c %s\r",
+	       item->type != 'i' ? typedisplay(item->type) : "",
+	       item->type > '1' ? '|' : '+', item->username);
+}
+
+static void
+help(void)
+{
+	return;
+}
+
+void
+display(Item *item)
+{
+	Item **items;
+	size_t i, curln, lastln, nitems, printoff;
+
+	if (item->type > '1')
+		return;
+
+	putp(tparm(clear_screen));
+	putp(tparm(save_cursor));
+
+	switch (item->type) {
+	case '0':
+		puts(item->raw);
+		break;
+	case '1':
+		items = item->dir->items;
+		nitems = item->dir->nitems;
+		printoff = item->printoff;
+		curln = item->curline;
+		lastln = printoff + lines;
+
+		for (i = printoff; i < nitems && i < lastln; ++i) {
+			if (item = items[i]) {
+				if (i != printoff)
+					putp(tparm(cursor_down));
+				if (i == curln) {
+					putp(tparm(save_cursor));
+					putp(tparm(enter_standout_mode));
+				}
+				printitem(item);
+				putp(tparm(column_address, 0));
+				if (i == curln)
+					putp(tparm(exit_standout_mode));
+			}
+		}
+		break;
+	}
+
+	putp(tparm(restore_cursor));
+}
+
+static void
+movecurline(Item *item, int l)
+{
+	size_t nitems;
+	ssize_t curline, offline;
+
+	if (item->dir == NULL)
+		return;
+
+	curline = item->curline + l;
+	nitems = item->dir->nitems;
+	if (curline < 0 || curline >= nitems)
+		return;
+
+	printitem(item->dir->items[item->curline]);
+	item->curline = curline;
+
+	if (l > 0) {
+		offline = item->printoff + lines;
+		if (curline - item->printoff >= lines / 2 && offline < nitems) {
+			putp(tparm(save_cursor));
+
+			putp(tparm(cursor_address, lines, 0));
+			putp(tparm(scroll_forward));
+			printitem(item->dir->items[offline]);
+
+			putp(tparm(restore_cursor));
+			item->printoff += l;
+		}
+	} else {
+		offline = item->printoff + l;
+		if (curline - offline <= lines / 2 && offline >= 0) {
+			putp(tparm(save_cursor));
+
+			putp(tparm(cursor_address, 0, 0));
+			putp(tparm(scroll_reverse));
+			printitem(item->dir->items[offline]);
+			putchar('\n');
+
+			putp(tparm(restore_cursor));
+			item->printoff += l;
+		}
+	}
+	
+	putp(tparm(cursor_address, curline - item->printoff, 0));
+	putp(tparm(enter_standout_mode));
+	printitem(item->dir->items[curline]);
+	putp(tparm(exit_standout_mode));
+}
+
+Item *
+selectitem(Item *entry)
+{
+	char c;
+	Item *hole;
+	int item, nitems;
+
+	for (;;) {
+		switch (c = getchar()) {
+		case 'b':
+			return entry->entry;
+		case 'g':
+			if (entry->dir->items[entry->curline]->type < '2')
+				return entry->dir->items[entry->curline];
+			continue;
+		case 'n':
+			movecurline(entry, 1);
+			continue;
+		case 'p':
+			movecurline(entry, -1);
+			continue;
+		case 'q':
+			return NULL;
+		case '!':
+			if (entry->raw)
+				continue;
+			return entry;
+		case 'h': /* FALLTHROUGH */
+			help();
+		default:
+			continue;
+
+		}
+	}
+}+
\ No newline at end of file