pwb_xdg

#!/usr/bin/env bash

enable ate
enable pwb
source <( pwb_sources \
              ate_exit_on_error      \
              pwb_exit_on_error      \
              ate_get_index_with_key \
              ate_confirm_functions  \
              ate_display_ate_table  \
        )

declare MARGIN_COLOR=$'\e[48;2;64;64;64m'

############################################################
# This script presents a table of desktop files that
# are used to access files that are identified as the
# appropriate mime type.
# 
# This script is an example of how to parse data use Bash
# regular expression methods, among other things.  It uses
# the convenient function 'pwb_display_ate_table' to show
# formatted output.
############################################################



##########################
### TABLE PREPERATIONS ###
##########################


get_data_dirs()
{
    local -n gdd_array="$1"
    gdd_array=()

    local IFS=':'
    local -a tdirs=( $XDG_DATA_DIRS )
    IFS='/'
    for dir in "${tdirs[@]}"; do
        local -a parts=( $dir )
        parts+=( applications )
        local candidate="${parts[*]}"
        if [ -d "$candidate" ]; then
            gdd_array+=( "$candidate" )
        fi
    done
}

read_desktop_info()
{
    local -n rdi_hash="$1"
    local path="$2"
    rdi_hash=()

    local line firstchar
    local -a pair
    local IFS='='
    while read -r line; do
        # Skip empty lines
        if [ "${#line}" -eq 0 ]; then
            continue
        fi
        # skip section heads '[' and comments '#'
        firstchar="${line:0:1}"
        if [[ \[\# =~ "$firstchar" ]]; then
            continue
        fi

        pair=( $line )
        local key="${pair[0]}"
        local value="${pair[1]}"
        rdi_hash["$key"]="$value"
    done < "$path"
}

load_table()
{
    local table_name="$1"
    ate get_array_name "$table_name"
    local -n lt_array="$ATE_VALUE"

    local -a data_dirs
    get_data_dirs data_dirs

    local -A dt_contents

    for dir in "${data_dirs[@]}"; do
        # Get number of path prefix chars to remove
        # for the current directory
        local -i dir_len="${#dir}"
        (( ++dir_len ))

        local exec_str term_flag

        local -a files=( "${dir}/"*.desktop )
        for file in "${files[@]}"; do
            read_desktop_info dt_contents "$file"
            exec_str="${dt_contents[Exec]}"
            if [[ "${dt_contents[Terminal]}" == "true" ]]; then
                term_flag="yes"
            else
                term_flag="no"
            fi
            lt_array+=( "${file:$dir_len}" "$dir" "$exec_str" "$term_flag" )
        done
    done

    ate index_rows "$table_name"
    ate_exit_on_error
}


declare DT_TABLE
ate declare DT_TABLE 4
ate_exit_on_error

load_table DT_TABLE

pwb init
pwb_display_ate_table DT_TABLE
pwb restore