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Diffstat (limited to 'src/libsystemd-terminal/term-screen.c')
-rw-r--r--src/libsystemd-terminal/term-screen.c185
1 files changed, 86 insertions, 99 deletions
diff --git a/src/libsystemd-terminal/term-screen.c b/src/libsystemd-terminal/term-screen.c
index 5a053a31bd..f2ac5c92c4 100644
--- a/src/libsystemd-terminal/term-screen.c
+++ b/src/libsystemd-terminal/term-screen.c
@@ -392,124 +392,111 @@ static inline void set_reset(term_screen *screen, unsigned int flag, bool set) {
screen->flags &= ~flag;
}
-static void screen_mode_change(term_screen *screen, unsigned int mode, bool dec, bool set) {
+static void screen_mode_change_ansi(term_screen *screen, unsigned mode, bool set) {
+ switch (mode) {
+ case 20:
+ /*
+ * LNM: line-feed/new-line mode
+ * TODO
+ */
+ set_reset(screen, TERM_FLAG_NEWLINE_MODE, set);
+
+ break;
+ }
+}
+
+static void screen_mode_change_dec(term_screen *screen, unsigned int mode, bool set) {
switch (mode) {
case 1:
- if (dec) {
- /*
- * DECCKM: cursor-keys
- * TODO
- */
- set_reset(screen, TERM_FLAG_CURSOR_KEYS, set);
- }
+ /*
+ * DECCKM: cursor-keys
+ * TODO
+ */
+ set_reset(screen, TERM_FLAG_CURSOR_KEYS, set);
break;
case 6:
- if (dec) {
- /*
- * DECOM: origin-mode
- * TODO
- */
- screen->state.origin_mode = set;
- }
+ /*
+ * DECOM: origin-mode
+ * TODO
+ */
+ screen->state.origin_mode = set;
break;
case 7:
- if (dec) {
- /*
- * DECAWN: auto-wrap mode
- * TODO
- */
- screen->state.auto_wrap = set;
- }
-
- break;
- case 20:
- if (!dec) {
- /*
- * LNM: line-feed/new-line mode
- * TODO
- */
- set_reset(screen, TERM_FLAG_NEWLINE_MODE, set);
- }
+ /*
+ * DECAWN: auto-wrap mode
+ * TODO
+ */
+ screen->state.auto_wrap = set;
break;
case 25:
- if (dec) {
- /*
- * DECTCEM: text-cursor-enable
- * TODO
- */
- set_reset(screen, TERM_FLAG_HIDE_CURSOR, !set);
- screen_age_cursor(screen);
- }
+ /*
+ * DECTCEM: text-cursor-enable
+ * TODO
+ */
+ set_reset(screen, TERM_FLAG_HIDE_CURSOR, !set);
+ screen_age_cursor(screen);
break;
case 47:
- if (dec) {
- /*
- * XTERM-ASB: alternate-screen-buffer
- * This enables/disables the alternate screen-buffer.
- * It effectively saves the current page content and
- * allows you to restore it when changing to the
- * original screen-buffer again.
- */
- screen_change_alt(screen, set);
- }
+ /*
+ * XTERM-ASB: alternate-screen-buffer
+ * This enables/disables the alternate screen-buffer.
+ * It effectively saves the current page content and
+ * allows you to restore it when changing to the
+ * original screen-buffer again.
+ */
+ screen_change_alt(screen, set);
break;
case 1047:
- if (dec) {
- /*
- * XTERM-ASBPE: alternate-screen-buffer-post-erase
- * This is the same as XTERM-ASB but erases the
- * alternate screen-buffer before switching back to the
- * original buffer. Use it to discard any data on the
- * alternate screen buffer when done.
- */
- if (!set)
- screen_reset_page(screen, screen->page_alt);
-
- screen_change_alt(screen, set);
- }
+ /*
+ * XTERM-ASBPE: alternate-screen-buffer-post-erase
+ * This is the same as XTERM-ASB but erases the
+ * alternate screen-buffer before switching back to the
+ * original buffer. Use it to discard any data on the
+ * alternate screen buffer when done.
+ */
+ if (!set)
+ screen_reset_page(screen, screen->page_alt);
+
+ screen_change_alt(screen, set);
break;
case 1048:
- if (dec) {
- /*
- * XTERM-ASBCS: alternate-screen-buffer-cursor-state
- * This has the same effect as DECSC/DECRC, but uses a
- * separate state buffer. It is usually used in
- * combination with alternate screen buffers to provide
- * stacked state storage.
- */
- if (set)
- screen_save_state(screen, &screen->saved_alt);
- else
- screen_restore_state(screen, &screen->saved_alt);
- }
+ /*
+ * XTERM-ASBCS: alternate-screen-buffer-cursor-state
+ * This has the same effect as DECSC/DECRC, but uses a
+ * separate state buffer. It is usually used in
+ * combination with alternate screen buffers to provide
+ * stacked state storage.
+ */
+ if (set)
+ screen_save_state(screen, &screen->saved_alt);
+ else
+ screen_restore_state(screen, &screen->saved_alt);
break;
case 1049:
- if (dec) {
- /*
- * XTERM-ASBX: alternate-screen-buffer-extended
- * This combines XTERM-ASBPE and XTERM-ASBCS somewhat.
- * When enabling, state is saved, alternate screen
- * buffer is activated and cleared.
- * When disabled, alternate screen buffer is cleared,
- * then normal screen buffer is enabled and state is
- * restored.
- */
- if (set)
- screen_save_state(screen, &screen->saved_alt);
-
- screen_reset_page(screen, screen->page_alt);
- screen_change_alt(screen, set);
-
- if (!set)
- screen_restore_state(screen, &screen->saved_alt);
- }
+ /*
+ * XTERM-ASBX: alternate-screen-buffer-extended
+ * This combines XTERM-ASBPE and XTERM-ASBCS somewhat.
+ * When enabling, state is saved, alternate screen
+ * buffer is activated and cleared.
+ * When disabled, alternate screen buffer is cleared,
+ * then normal screen buffer is enabled and state is
+ * restored.
+ */
+ if (set)
+ screen_save_state(screen, &screen->saved_alt);
+
+ screen_reset_page(screen, screen->page_alt);
+ screen_change_alt(screen, set);
+
+ if (!set)
+ screen_restore_state(screen, &screen->saved_alt);
break;
}
@@ -2763,7 +2750,7 @@ static int screen_RM_ANSI(term_screen *screen, const term_seq *seq) {
unsigned int i;
for (i = 0; i < seq->n_args; ++i)
- screen_mode_change(screen, seq->args[i], false, false);
+ screen_mode_change_ansi(screen, seq->args[i], false);
return 0;
}
@@ -2777,7 +2764,7 @@ static int screen_RM_DEC(term_screen *screen, const term_seq *seq) {
unsigned int i;
for (i = 0; i < seq->n_args; ++i)
- screen_mode_change(screen, seq->args[i], true, false);
+ screen_mode_change_dec(screen, seq->args[i], false);
return 0;
}
@@ -3057,7 +3044,7 @@ static int screen_SM_ANSI(term_screen *screen, const term_seq *seq) {
unsigned int i;
for (i = 0; i < seq->n_args; ++i)
- screen_mode_change(screen, seq->args[i], false, true);
+ screen_mode_change_ansi(screen, seq->args[i], true);
return 0;
}
@@ -3071,7 +3058,7 @@ static int screen_SM_DEC(term_screen *screen, const term_seq *seq) {
unsigned int i;
for (i = 0; i < seq->n_args; ++i)
- screen_mode_change(screen, seq->args[i], true, true);
+ screen_mode_change_dec(screen, seq->args[i], true);
return 0;
}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-09 02:32:36 +0000