mirror of
https://github.com/jarun/nnn.git
synced 2024-09-12 17:17:18 +00:00
258 lines
7.1 KiB
Diff
258 lines
7.1 KiB
Diff
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# Description: Adds preview pipe to enable closing and re-opening
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# the preview pane when running an undetached editor.
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#
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# Authors: Luuk van Baal
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diff --git a/src/nnn.c b/src/nnn.c
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index 44f297f4..f15b3bc1 100644
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--- a/src/nnn.c
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+++ b/src/nnn.c
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@@ -367,7 +367,8 @@ typedef struct {
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uint_t stayonsel : 1; /* Disable auto-proceed on select */
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uint_t trash : 2; /* Use trash to delete files 1: trash-cli, 2: gio trash */
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uint_t uidgid : 1; /* Show owner and group info */
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- uint_t reserved : 7; /* Adjust when adding/removing a field */
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+ uint_t previewer : 1; /* Run state of previewer */
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+ uint_t reserved : 6; /* Adjust when adding/removing a field */
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} runstate;
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/* Contexts or workspaces */
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@@ -513,6 +514,9 @@ static char g_tmpfpath[TMP_LEN_MAX] __attribute__ ((aligned));
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/* Buffer to store plugins control pipe location */
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static char g_pipepath[TMP_LEN_MAX] __attribute__ ((aligned));
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+/* Buffer to store preview plugins control pipe location */
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+static char g_ppipepath[TMP_LEN_MAX] __attribute__ ((aligned));
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+
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/* Non-persistent runtime states */
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static runstate g_state;
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@@ -687,12 +691,13 @@ static const char * const messages[] = {
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#define NNN_FCOLORS 5
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#define NNNLVL 6
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#define NNN_PIPE 7
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-#define NNN_MCLICK 8
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-#define NNN_SEL 9
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-#define NNN_ARCHIVE 10
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-#define NNN_ORDER 11
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-#define NNN_HELP 12 /* strings end here */
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-#define NNN_TRASH 13 /* flags begin here */
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+#define NNN_PPIPE 8
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+#define NNN_MCLICK 9
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+#define NNN_SEL 10
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+#define NNN_ARCHIVE 11
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+#define NNN_ORDER 12
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+#define NNN_HELP 13 /* strings end here */
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+#define NNN_TRASH 14 /* flags begin here */
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static const char * const env_cfg[] = {
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"NNN_OPTS",
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@@ -703,6 +708,7 @@ static const char * const env_cfg[] = {
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"NNN_FCOLORS",
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"NNNLVL",
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"NNN_PIPE",
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+ "NNN_PPIPE",
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"NNN_MCLICK",
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"NNN_SEL",
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"NNN_ARCHIVE",
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@@ -846,7 +852,7 @@ static char *load_input(int fd, const char *path);
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static int set_sort_flags(int r);
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static void statusbar(char *path);
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#ifndef NOFIFO
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-static void notify_fifo(bool force);
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+static void notify_fifo(bool force, bool closepreview);
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#endif
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/* Functions */
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@@ -3045,7 +3051,7 @@ try_quit:
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} else {
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#ifndef NOFIFO
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if (!g_state.fifomode)
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- notify_fifo(TRUE); /* Send hovered path to NNN_FIFO */
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+ notify_fifo(TRUE, FALSE); /* Send hovered path to NNN_FIFO */
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#endif
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escaped = TRUE;
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settimeout();
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@@ -5131,15 +5137,20 @@ static bool run_cmd_as_plugin(const char *file, uchar_t flags)
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static bool plctrl_init(void)
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{
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- size_t len;
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+ size_t len, lenbuf;
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+ pid_t pid = getpid();
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/* g_tmpfpath is used to generate tmp file names */
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g_tmpfpath[tmpfplen - 1] = '\0';
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- len = xstrsncpy(g_pipepath, g_tmpfpath, TMP_LEN_MAX);
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+ len = lenbuf = xstrsncpy(g_pipepath, g_tmpfpath, TMP_LEN_MAX);
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g_pipepath[len - 1] = '/';
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- len = xstrsncpy(g_pipepath + len, "nnn-pipe.", TMP_LEN_MAX - len) + len;
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- xstrsncpy(g_pipepath + len - 1, xitoa(getpid()), TMP_LEN_MAX - len);
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+ xstrsncpy(g_ppipepath, g_pipepath, TMP_LEN_MAX);
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+ len += xstrsncpy(g_pipepath + len, "nnn-pipe.", TMP_LEN_MAX - len);
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+ xstrsncpy(g_pipepath + len - 1, xitoa(pid), TMP_LEN_MAX - len);
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+ len = xstrsncpy(g_ppipepath + lenbuf, "nnn-ppipe.", TMP_LEN_MAX - lenbuf) + lenbuf;
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+ xstrsncpy(g_ppipepath + len - 1, xitoa(pid), TMP_LEN_MAX - len);
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setenv(env_cfg[NNN_PIPE], g_pipepath, TRUE);
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+ setenv(env_cfg[NNN_PPIPE], g_ppipepath, TRUE);
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return EXIT_SUCCESS;
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}
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@@ -5168,6 +5179,21 @@ static ssize_t read_nointr(int fd, void *buf, size_t count)
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return len;
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}
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+void *previewpipe(void *arg __attribute__ ((unused)))
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+{
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+ int fd, buf;
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+
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+ mkfifo(g_ppipepath, 0600);
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+ fd = open(g_ppipepath, O_RDONLY);
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+
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+ if (read(fd, &buf, 1) == 1)
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+ g_state.previewer = buf;
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+
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+ close(fd);
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+ unlink(g_ppipepath);
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+ return NULL;
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+}
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+
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static char *readpipe(int fd, char *ctxnum, char **path)
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{
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char ctx, *nextpath = NULL;
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@@ -5787,7 +5813,7 @@ static void populate(char *path, char *lastname)
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}
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#ifndef NOFIFO
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-static void notify_fifo(bool force)
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+static void notify_fifo(bool force, bool closepreview)
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{
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if (!fifopath)
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return;
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@@ -5803,6 +5829,12 @@ static void notify_fifo(bool force)
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}
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}
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+ if (closepreview) {
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+ if (write(fifofd, "close\n", 6) != 6)
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+ xerror();
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+ return;
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+ }
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+
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static struct entry lastentry;
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if (!force && !memcmp(&lastentry, &pdents[cur], sizeof(struct entry)))
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@@ -5852,7 +5884,7 @@ static void move_cursor(int target, int ignore_scrolloff)
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#ifndef NOFIFO
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if (!g_state.fifomode)
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- notify_fifo(FALSE); /* Send hovered path to NNN_FIFO */
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+ notify_fifo(FALSE, FALSE); /* Send hovered path to NNN_FIFO */
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#endif
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}
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@@ -6473,6 +6505,7 @@ static bool browse(char *ipath, const char *session, int pkey)
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const uchar_t opener_flags = (cfg.cliopener ? F_CLI : (F_NOTRACE | F_NOSTDIN | F_NOWAIT));
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bool watch = FALSE;
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ino_t inode = 0;
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+ static int previewkey;
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#ifndef NOMOUSE
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MEVENT event = {0};
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@@ -6735,7 +6768,7 @@ nochange:
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move_cursor(r, 1);
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#ifndef NOFIFO
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else if ((event.bstate == BUTTON1_PRESSED) && !g_state.fifomode)
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- notify_fifo(TRUE); /* Send clicked path to NNN_FIFO */
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+ notify_fifo(TRUE, FALSE); /* Send clicked path to NNN_FIFO */
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#endif
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/* Handle right click selection */
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if (event.bstate == BUTTON3_PRESSED) {
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@@ -6808,7 +6841,7 @@ nochange:
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}
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#ifndef NOFIFO
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if (g_state.fifomode && (sel == SEL_OPEN)) {
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- notify_fifo(TRUE); /* Send opened path to NNN_FIFO */
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+ notify_fifo(TRUE, FALSE); /* Send opened path to NNN_FIFO */
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goto nochange;
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}
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#endif
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@@ -6890,7 +6923,17 @@ nochange:
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&& strstr(g_buf, "text")
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#endif
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) {
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+
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+ if (g_state.previewer)
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+ notify_fifo(FALSE, TRUE);
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+
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spawn(editor, newpath, NULL, NULL, F_CLI);
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+
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+ if (g_state.previewer) {
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+ pkey = previewkey;
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+ goto run_plugin;
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+ }
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+
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if (cfg.filtermode) {
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presel = FILTER;
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clearfilter();
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@@ -7198,7 +7241,17 @@ nochange:
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copycurname();
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goto nochange;
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case SEL_EDIT:
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+
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+ if (g_state.previewer)
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+ notify_fifo(FALSE, TRUE);
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+
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spawn(editor, newpath, NULL, NULL, F_CLI);
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+
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+ if (g_state.previewer) {
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+ pkey = previewkey;
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+ goto run_plugin;
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+ }
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+
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continue;
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default: /* SEL_LOCK */
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lock_terminal();
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@@ -7558,6 +7611,7 @@ nochange:
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goto begin;
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}
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+run_plugin:
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case SEL_PLUGIN:
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/* Check if directory is accessible */
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if (!xdiraccess(plgpath)) {
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@@ -7583,6 +7637,12 @@ nochange:
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goto nochange;
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}
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+ if (xstrcmp(tmp, "preview-tui") == 0) {
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+ previewkey = r;
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+ pthread_t tid;
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+ pthread_create(&tid, NULL, previewpipe, NULL);
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+ }
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+
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if (tmp[0] == '-' && tmp[1]) {
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++tmp;
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r = FALSE; /* Do not refresh dir after completion */
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@@ -8181,8 +8241,10 @@ static void cleanup(void)
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if (g_state.autofifo)
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unlink(fifopath);
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#endif
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- if (g_state.pluginit)
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+ if (g_state.pluginit){
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unlink(g_pipepath);
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+ unlink(g_ppipepath);
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+ }
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#ifdef DEBUG
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disabledbg();
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#endif
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@@ -8681,7 +8743,7 @@ int main(int argc, char *argv[])
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#ifndef NOFIFO
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if (!g_state.fifomode)
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- notify_fifo(FALSE);
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+ notify_fifo(FALSE, FALSE);
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if (fifofd != -1)
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close(fifofd);
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#endif
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