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tui: avoid double-resize on SIGWINCH. #3145

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This commit is contained in:
Felipe Morales 2015-08-08 15:55:18 -03:00 committed by Justin M. Keyes
parent 389c3b8581
commit 7d9472ab1b
1 changed files with 10 additions and 4 deletions
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14
src/nvim/tui/tui.c
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@ -66,6 +66,8 @@ typedef struct {
} unibi_ext;
} TUIData;
static bool volatile got_winch = false;
#ifdef INCLUDE_GENERATED_DECLARATIONS
# include "tui/tui.c.generated.h"
#endif
@ -212,6 +214,7 @@ static void try_resize(Event ev)
static void sigwinch_cb(SignalWatcher *watcher, int signum, void *data)
{
got_winch = true;
// Queue the event because resizing can result in recursive event_poll calls
// FIXME(blueyed): TUI does not resize properly when not deferred. Why? #2322
loop_push_event(&loop, (Event) {
@ -354,10 +357,13 @@ static void tui_resize(UI *ui, int width, int height)
data->scroll_region.right = width - 1;
data->row = data->col = 0;
// try to resize the terminal window
char r[16]; // enough for 9999x9999
snprintf(r, sizeof(r), "\x1b[8;%d;%dt", height, width);
out(ui, r, strlen(r));
if (!got_winch) { // Try to resize the terminal window.
char r[16]; // enough for 9999x9999
snprintf(r, sizeof(r), "\x1b[8;%d;%dt", height, width);
out(ui, r, strlen(r));
} else { // Already handled the SIGWINCH signal; avoid double-resize.
got_winch = false;
}
}
static void tui_clear(UI *ui)