set env var NSXIV_USING_NULL for key-handler and update docs
Co-authored-by: Berke Kocaoğlu <berke.kocaoglu@metu.edu.tr>
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@ -3,10 +3,14 @@
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# Example for $XDG_CONFIG_HOME/nsxiv/exec/key-handler
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# Called by nsxiv(1) after the external prefix key (C-x by default) is pressed.
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# The next key combo is passed as its first argument. Passed via stdin are the
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# images to act upon, one path per line: all marked images, if in thumbnail
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# mode and at least one image has been marked, otherwise the current image.
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# nsxiv(1) blocks until this script terminates. It then checks which images
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# have been modified and reloads them.
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# images to act upon: all marked images, if in thumbnail mode and at least one
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# image has been marked, otherwise the current image. nsxiv(1) will block until
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# the handler terminates. It then checks which images have been modified and
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# reloads them.
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# By default nsxiv(1) will send one image per-line to stdin, however when using
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# -0 the image list will be NULL separated and the enviornment variable
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# "$NSXIV_USING_NULL" will be set to 1.
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# The key combo argument has the following form: "[C-][M-][S-]KEY",
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# where C/M/S indicate Ctrl/Meta(Alt)/Shift modifier states and KEY is the X
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1
main.c
1
main.c
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@ -549,6 +549,7 @@ void run_key_handler(const char *key, unsigned int mask)
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mask & ControlMask ? "C-" : "",
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mask & Mod1Mask ? "M-" : "",
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mask & ShiftMask ? "S-" : "", key);
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setenv("NSXIV_USING_NULL", options->using_null ? "1" : "0", 1);
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if ((pid = fork()) == 0) {
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close(pfd[1]);
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14
nsxiv.1
14
nsxiv.1
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@ -439,14 +439,20 @@ located in
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The handler is invoked by pressing
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.BR Ctrl-x .
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The next key combo is passed as its first argument. Passed via stdin are the
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images to act upon, one path per line: all marked images, if in thumbnail mode
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and at least one image has been marked, otherwise the current image.
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nsxiv(1) will block until the handler terminates. It then checks which images
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have been modified and reloads them.
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images to act upon: all marked images, if in thumbnail mode and at least one
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image has been marked, otherwise the current image. nsxiv(1) will block until
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the handler terminates. It then checks which images have been modified and
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reloads them.
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By default nsxiv(1) will send one image per-line to stdin, however when using
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\-0 the image list will be NULL separated and the enviornment variable
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"$NSXIV_USING_NULL" will be set to 1.
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The key combo argument has the following form: "[C-][M-][S-]KEY",
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where C/M/S indicate Ctrl/Meta(Alt)/Shift modifier states and KEY is the X
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keysym as listed in /usr/include/X11/keysymdef.h without the "XK_" prefix.
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If KEY has an uppercase equivalent, S-KEY is resolved into it. For instance,
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K replaces S-k and Scedilla replaces S-scedilla, but S-Delete is sent as-is.
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There is also an example script installed together with nsxiv as
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.IR EGPREFIX/key-handler .
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