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Add less plugin based on code from leash
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,236 @@ | ||
| /**@license | ||
| * __ _____ ________ __ | ||
| * / // _ /__ __ _____ ___ __ _/__ ___/__ ___ ______ __ __ __ ___ / / | ||
| * __ / // // // // // _ // _// // / / // _ // _// // // \/ // _ \/ / | ||
| * / / // // // // // ___// / / // / / // ___// / / / / // // /\ // // / /__ | ||
| * \___//____ \\___//____//_/ _\_ / /_//____//_/ /_/ /_//_//_/ /_/ \__\_\___/ | ||
| * \/ /____/ | ||
| * http://terminal.jcubic.pl | ||
| * | ||
| * This is example of how to create less like command for jQuery Terminal | ||
| * the code is based on the one from leash shell | ||
| * | ||
| * Copyright (c) 2014-2018 Jakub Jankiewicz <http://jcubic.pl/me> | ||
| * Released under the MIT license | ||
| * | ||
| */ | ||
| /* global jQuery */ | ||
| (function($) { | ||
| function less(term, text, exit) { | ||
| var export_data = term.export_view(); | ||
| var cols, rows; | ||
| var pos = 0; | ||
| var original_lines; | ||
| var lines; | ||
| var prompt; | ||
| var left = 0; | ||
| function print() { | ||
| term.clear(); | ||
| if (lines.length-pos > rows-1) { | ||
| prompt = ':'; | ||
| } else { | ||
| prompt = '[[;;;inverted](END)]'; | ||
| } | ||
| term.set_prompt(prompt); | ||
| var to_print = lines.slice(pos, pos+rows-1); | ||
| var format_start_re = /^(\[\[[!gbiuso]*;[^;]*;[^\]]*\])/i; | ||
| to_print = to_print.map(function(line, line_index) { | ||
| return $.terminal.substring(line, left, left+cols-1); | ||
| }); | ||
| if (to_print.length < rows-1) { | ||
| while (rows-1 > to_print.length) { | ||
| to_print.push('~'); | ||
| } | ||
| } | ||
| term.echo(to_print.join('\n')); | ||
| } | ||
| function quit() { | ||
| term.pop().import_view(export_data); | ||
| //term.off('mousewheel', wheel); | ||
| if ($.isFunction(exit)) { | ||
| exit(); | ||
| } | ||
| } | ||
| function refresh_view() { | ||
| cols = term.cols(); | ||
| rows = term.rows(); | ||
| if ($.isFunction(text)) { | ||
| text(cols, function(new_lines) { | ||
| original_lines = new_lines; | ||
| lines = original_lines.slice(); | ||
| print(); | ||
| }); | ||
| } else { | ||
| original_lines = text.split('\n'); | ||
| lines = original_lines.slice(); | ||
| print(); | ||
| } | ||
| } | ||
| refresh_view(); | ||
| var scroll_by = 3; | ||
| //term.on('mousewheel', wheel); | ||
| var in_search = false, last_found, search_string; | ||
| function search(start, reset) { | ||
| var escape = $.terminal.escape_brackets(search_string), | ||
| flag = search_string.toLowerCase() == search_string ? 'i' : '', | ||
| start_re = new RegExp('^(' + escape + ')', flag), | ||
| regex = new RegExp(escape, flag), | ||
| index = -1, | ||
| prev_format = '', | ||
| formatting = false, | ||
| in_text = false; | ||
| lines = original_lines.slice(); | ||
| if (reset) { | ||
| index = pos = 0; | ||
| } | ||
| for (var i=0; i<lines.length; ++i) { | ||
| var line = lines[i]; | ||
| for (var j=0, jlen=line.length; j<jlen; ++j) { | ||
| if (line[j] === '[' && line[j+1] === '[') { | ||
| formatting = true; | ||
| in_text = false; | ||
| start = j; | ||
| } else if (formatting && line[j] === ']') { | ||
| if (in_text) { | ||
| formatting = false; | ||
| in_text = false; | ||
| } else { | ||
| in_text = true; | ||
| prev_format = line.substring(start, j+1); | ||
| } | ||
| } else if (formatting && in_text || !formatting) { | ||
| if (line.substring(j).match(start_re)) { | ||
| var rep; | ||
| if (formatting && in_text) { | ||
| rep = '][[;;;inverted]$1]' + | ||
| prev_format; | ||
| } else { | ||
| rep = '[[;;;inverted]$1]'; | ||
| } | ||
| line = line.substring(0, j) + | ||
| line.substring(j).replace(start_re, rep); | ||
| j += rep.length-2; | ||
| if (i > pos && index === -1) { | ||
| index = pos = i; | ||
| } | ||
| } | ||
| } | ||
| } | ||
| lines[i] = line; | ||
| } | ||
| print(); | ||
| term.set_command(''); | ||
| term.set_prompt(prompt); | ||
| return index; | ||
| } | ||
| term.push($.noop, { | ||
| resize: refresh_view, | ||
| mousewheel: function(event, delta) { | ||
| if (delta > 0) { | ||
| pos -= scroll_by; | ||
| if (pos < 0) { | ||
| pos = 0; | ||
| } | ||
| } else { | ||
| pos += scroll_by; | ||
| if (pos-1 > lines.length-rows) { | ||
| pos = lines.length-rows+1; | ||
| } | ||
| } | ||
| print(); | ||
| return false; | ||
| }, | ||
| name: 'less', | ||
| keydown: function(e) { | ||
| var command = term.get_command(); | ||
| if (term.get_prompt() !== '/') { | ||
| if (e.which == 191) { | ||
| term.set_prompt('/'); | ||
| } else if (in_search && | ||
| $.inArray(e.which, [78, 80]) != -1) { | ||
| if (e.which == 78) { // search_string | ||
| if (last_found != -1) { | ||
| last_found = search(last_found+1); | ||
| } | ||
| } else if (e.which == 80) { // P | ||
| last_found = search(0, true); | ||
| } | ||
| } else if (e.which == 81) { //Q | ||
| quit(); | ||
| } else if (e.which == 39) { // right | ||
| left+=Math.round(cols/2); | ||
| print(); | ||
| } else if (e.which == 37) { // left | ||
| left-=Math.round(cols/2); | ||
| if (left < 0) { | ||
| left = 0; | ||
| } | ||
| print(); | ||
| } else { | ||
| // scroll | ||
| if (lines.length > rows) { | ||
| if (e.which === 38) { //up | ||
| if (pos > 0) { | ||
| --pos; | ||
| print(); | ||
| } | ||
| } else if (e.which === 40) { //down | ||
| if (pos <= lines.length-rows) { | ||
| ++pos; | ||
| print(); | ||
| } | ||
| } else if (e.which === 34) { | ||
| // Page up | ||
| pos += rows; | ||
| if (pos > lines.length-rows+1) { | ||
| pos = lines.length-rows+1; | ||
| } | ||
| print(); | ||
| } else if (e.which === 33) { | ||
| //Page Down | ||
| pos -= rows; | ||
| if (pos < 0) { | ||
| pos = 0; | ||
| } | ||
| print(); | ||
| } | ||
| } | ||
| } | ||
| if (!e.ctrlKey && !e.alKey) { | ||
| return false; | ||
| } | ||
| } else { | ||
| // search | ||
| if (e.which === 8 && command === '') { | ||
| // backspace | ||
| term.set_prompt(prompt); | ||
| } else if (e.which == 13) { // enter | ||
| // basic search find only first | ||
| if (command.length > 0) { | ||
| in_search = true; | ||
| pos = 0; | ||
| search_string = command; | ||
| last_found = search(0); | ||
| } | ||
| return false; | ||
| } | ||
| } | ||
| }, | ||
| prompt: prompt | ||
| }); | ||
| } | ||
| $.fn.less = function(text, options) { | ||
| var settings = $.extend({ | ||
| onExit: $.noop | ||
| }, options); | ||
| if (!this.terminal) { | ||
| throw new Error('This plugin require jQuery Terminal'); | ||
| } | ||
| var term = this.terminal(); | ||
| if (!term) { | ||
| throw new Error('You need to invoke this plugin on selector that have ' + | ||
| 'jQuery Terminal or on jQuery Terminal instance'); | ||
| } | ||
| less(term, text, settings.onExit); | ||
| }; | ||
| })(jQuery); |