136 lines
4.4 KiB
JavaScript
136 lines
4.4 KiB
JavaScript
/* eslint-disable import/prefer-default-export, func-names, space-before-function-paren, wrap-iife, no-var, no-param-reassign, no-cond-assign, quotes, one-var, one-var-declaration-per-line, operator-assignment, no-else-return, prefer-template, prefer-arrow-callback, no-empty, max-len, consistent-return, no-unused-vars, no-return-assign, max-len, vars-on-top */
|
|
import $ from 'jquery';
|
|
import { insertText } from '~/lib/utils/common_utils';
|
|
|
|
function selectedText(text, textarea) {
|
|
return text.substring(textarea.selectionStart, textarea.selectionEnd);
|
|
}
|
|
|
|
function lineBefore(text, textarea) {
|
|
var split;
|
|
split = text.substring(0, textarea.selectionStart).trim().split('\n');
|
|
return split[split.length - 1];
|
|
}
|
|
|
|
function lineAfter(text, textarea) {
|
|
return text.substring(textarea.selectionEnd).trim().split('\n')[0];
|
|
}
|
|
|
|
function blockTagText(text, textArea, blockTag, selected) {
|
|
const before = lineBefore(text, textArea);
|
|
const after = lineAfter(text, textArea);
|
|
if (before === blockTag && after === blockTag) {
|
|
// To remove the block tag we have to select the line before & after
|
|
if (blockTag != null) {
|
|
textArea.selectionStart = textArea.selectionStart - (blockTag.length + 1);
|
|
textArea.selectionEnd = textArea.selectionEnd + (blockTag.length + 1);
|
|
}
|
|
return selected;
|
|
} else {
|
|
return blockTag + "\n" + selected + "\n" + blockTag;
|
|
}
|
|
}
|
|
|
|
function moveCursor(textArea, tag, wrapped, removedLastNewLine) {
|
|
var pos;
|
|
if (!textArea.setSelectionRange) {
|
|
return;
|
|
}
|
|
if (textArea.selectionStart === textArea.selectionEnd) {
|
|
if (wrapped) {
|
|
pos = textArea.selectionStart - tag.length;
|
|
} else {
|
|
pos = textArea.selectionStart;
|
|
}
|
|
|
|
if (removedLastNewLine) {
|
|
pos -= 1;
|
|
}
|
|
|
|
return textArea.setSelectionRange(pos, pos);
|
|
}
|
|
}
|
|
|
|
export function insertMarkdownText(textArea, text, tag, blockTag, selected, wrap) {
|
|
var textToInsert, inserted, selectedSplit, startChar, removedLastNewLine, removedFirstNewLine, currentLineEmpty, lastNewLine;
|
|
removedLastNewLine = false;
|
|
removedFirstNewLine = false;
|
|
currentLineEmpty = false;
|
|
|
|
// Remove the first newline
|
|
if (selected.indexOf('\n') === 0) {
|
|
removedFirstNewLine = true;
|
|
selected = selected.replace(/\n+/, '');
|
|
}
|
|
|
|
// Remove the last newline
|
|
if (textArea.selectionEnd - textArea.selectionStart > selected.replace(/\n$/, '').length) {
|
|
removedLastNewLine = true;
|
|
selected = selected.replace(/\n$/, '');
|
|
}
|
|
|
|
selectedSplit = selected.split('\n');
|
|
|
|
if (!wrap) {
|
|
lastNewLine = textArea.value.substr(0, textArea.selectionStart).lastIndexOf('\n');
|
|
|
|
// Check whether the current line is empty or consists only of spaces(=handle as empty)
|
|
if (/^\s*$/.test(textArea.value.substring(lastNewLine, textArea.selectionStart))) {
|
|
currentLineEmpty = true;
|
|
}
|
|
}
|
|
|
|
startChar = !wrap && !currentLineEmpty && textArea.selectionStart > 0 ? '\n' : '';
|
|
|
|
if (selectedSplit.length > 1 && (!wrap || (blockTag != null && blockTag !== ''))) {
|
|
if (blockTag != null && blockTag !== '') {
|
|
textToInsert = blockTagText(text, textArea, blockTag, selected);
|
|
} else {
|
|
textToInsert = selectedSplit.map(function(val) {
|
|
if (val.indexOf(tag) === 0) {
|
|
return "" + (val.replace(tag, ''));
|
|
} else {
|
|
return "" + tag + val;
|
|
}
|
|
}).join('\n');
|
|
}
|
|
} else {
|
|
textToInsert = "" + startChar + tag + selected + (wrap ? tag : ' ');
|
|
}
|
|
|
|
if (removedFirstNewLine) {
|
|
textToInsert = '\n' + textToInsert;
|
|
}
|
|
|
|
if (removedLastNewLine) {
|
|
textToInsert += '\n';
|
|
}
|
|
|
|
insertText(textArea, textToInsert);
|
|
return moveCursor(textArea, tag, wrap, removedLastNewLine);
|
|
}
|
|
|
|
function updateText(textArea, tag, blockTag, wrap) {
|
|
var $textArea, selected, text;
|
|
$textArea = $(textArea);
|
|
textArea = $textArea.get(0);
|
|
text = $textArea.val();
|
|
selected = selectedText(text, textArea);
|
|
$textArea.focus();
|
|
return insertMarkdownText(textArea, text, tag, blockTag, selected, wrap);
|
|
}
|
|
|
|
function replaceRange(s, start, end, substitute) {
|
|
return s.substring(0, start) + substitute + s.substring(end);
|
|
}
|
|
|
|
export function addMarkdownListeners(form) {
|
|
return $('.js-md', form).off('click').on('click', function() {
|
|
const $this = $(this);
|
|
return updateText($this.closest('.md-area').find('textarea'), $this.data('mdTag'), $this.data('mdBlock'), !$this.data('mdPrepend'));
|
|
});
|
|
}
|
|
|
|
export function removeMarkdownListeners(form) {
|
|
return $('.js-md', form).off('click');
|
|
}
|