ztmux 3.7.20

A Rust port of tmux — the full terminal multiplexer, server and client
Documentation 
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// Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
// IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
// OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

use super::*;

pub static CMD_COPY_MODE_ENTRY: cmd_entry = cmd_entry {
    name: "copy-mode",
    alias: None,

    args: args_parse::new("deHMs:t:uq", 0, 0, None),
    usage: "[-deHMuq] [-s src-pane] [-t target-pane]",

    source: cmd_entry_flag::new(b's', cmd_find_type::CMD_FIND_PANE, cmd_find_flags::empty()),
    target: cmd_entry_flag::new(b't', cmd_find_type::CMD_FIND_PANE, cmd_find_flags::empty()),

    flags: cmd_flag::CMD_AFTERHOOK,
    exec: cmd_copy_mode_exec,
};

pub static CMD_CLOCK_MODE_ENTRY: cmd_entry = cmd_entry {
    name: "clock-mode",
    alias: None,

    args: args_parse::new("t:", 0, 0, None),
    usage: "[-t target-pane]",

    target: cmd_entry_flag::new(b't', cmd_find_type::CMD_FIND_PANE, cmd_find_flags::empty()),
    source: cmd_entry_flag::zeroed(),

    flags: cmd_flag::CMD_AFTERHOOK,
    exec: cmd_copy_mode_exec,
};

/// C `vendor/tmux/cmd-copy-mode.c:57`: `static enum cmd_retval cmd_copy_mode_exec(struct cmd *self, struct cmdq_item *item)`
unsafe fn cmd_copy_mode_exec(self_: *mut cmd, item: *mut cmdq_item) -> cmd_retval {
    unsafe {
        let args = cmd_get_args(self_);
        let event = cmdq_get_event(item);
        let source = cmdq_get_source(item);
        let target = cmdq_get_target(item);
        let c = cmdq_get_client(item);
        let mut s = null_mut();
        let wp = (*target).wp;

        if args_has(args, 'q') {
            window_pane_reset_mode_all(wp);
            return cmd_retval::CMD_RETURN_NORMAL;
        }

        if args_has(args, 'M') {
            let wp = cmd_mouse_pane(&raw mut (*event).m, &raw mut s, null_mut());
            if wp.is_none() {
                return cmd_retval::CMD_RETURN_NORMAL;
            }
            if c.is_null() || (*c).session != s {
                return cmd_retval::CMD_RETURN_NORMAL;
            }
        }

        if std::ptr::eq(cmd_get_entry(self_), &CMD_CLOCK_MODE_ENTRY) {
            window_pane_set_mode(
                wp,
                null_mut(),
                &raw const WINDOW_CLOCK_MODE,
                null_mut(),
                null_mut(),
            );
            return cmd_retval::CMD_RETURN_NORMAL;
        }

        let swp = if args_has(args, 's') {
            (*source).wp
        } else {
            wp
        };
        if window_pane_set_mode(wp, swp, &raw const WINDOW_COPY_MODE, null_mut(), args) == 0
            && args_has(args, 'M')
        {
            window_copy_start_drag(c, &raw mut (*event).m);
        }
        if args_has(args, 'u') {
            window_copy_pageup(wp, 0);
        }
        if args_has(args, 'd') {
            window_copy_pagedown(wp, 0, args_has(args, 'e'));
        }

        cmd_retval::CMD_RETURN_NORMAL
    }
}