gitlab-org--gitlab-foss/app/assets/javascripts/lib/utils/text_utility.js

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JavaScript
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(function() {
(function(w) {
var base;
if (w.gl == null) {
w.gl = {};
}
if ((base = w.gl).text == null) {
base.text = {};
}
gl.text.randomString = function() {
return Math.random().toString(36).substring(7);
};
gl.text.replaceRange = function(s, start, end, substitute) {
return s.substring(0, start) + substitute + s.substring(end);
};
gl.text.selectedText = function(text, textarea) {
return text.substring(textarea.selectionStart, textarea.selectionEnd);
};
gl.text.lineBefore = function(text, textarea) {
var split;
split = text.substring(0, textarea.selectionStart).trim().split('\n');
return split[split.length - 1];
};
gl.text.lineAfter = function(text, textarea) {
return text.substring(textarea.selectionEnd).trim().split('\n')[0];
};
gl.text.blockTagText = function(text, textArea, blockTag, selected) {
var lineAfter, lineBefore;
lineBefore = this.lineBefore(text, textArea);
lineAfter = this.lineAfter(text, textArea);
if (lineBefore === blockTag && lineAfter === blockTag) {
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;
}
};
gl.text.insertText = function(textArea, text, tag, blockTag, selected, wrap) {
var insertText, inserted, selectedSplit, startChar;
selectedSplit = selected.split('\n');
startChar = !wrap && textArea.selectionStart > 0 ? '\n' : '';
if (selectedSplit.length > 1 && (!wrap || (blockTag != null))) {
if (blockTag != null) {
insertText = this.blockTagText(text, textArea, blockTag, selected);
} else {
insertText = selectedSplit.map(function(val) {
if (val.indexOf(tag) === 0) {
return "" + (val.replace(tag, ''));
} else {
return "" + tag + val;
}
}).join('\n');
}
} else {
insertText = "" + startChar + tag + selected + (wrap ? tag : ' ');
}
if (document.queryCommandSupported('insertText')) {
inserted = document.execCommand('insertText', false, insertText);
}
if (!inserted) {
try {
document.execCommand("ms-beginUndoUnit");
} catch (undefined) {}
textArea.value = this.replaceRange(text, textArea.selectionStart, textArea.selectionEnd, insertText);
try {
document.execCommand("ms-endUndoUnit");
} catch (undefined) {}
}
return this.moveCursor(textArea, tag, wrap);
};
gl.text.moveCursor = function(textArea, tag, wrapped) {
var pos;
if (!textArea.setSelectionRange) {
return;
}
if (textArea.selectionStart === textArea.selectionEnd) {
if (wrapped) {
pos = textArea.selectionStart - tag.length;
} else {
pos = textArea.selectionStart;
}
return textArea.setSelectionRange(pos, pos);
}
};
gl.text.updateText = function(textArea, tag, blockTag, wrap) {
var $textArea, oldVal, selected, text;
$textArea = $(textArea);
oldVal = $textArea.val();
textArea = $textArea.get(0);
text = $textArea.val();
selected = this.selectedText(text, textArea);
$textArea.focus();
return this.insertText(textArea, text, tag, blockTag, selected, wrap);
};
gl.text.init = function(form) {
var self;
self = this;
return $('.js-md', form).off('click').on('click', function() {
var $this;
$this = $(this);
return self.updateText($this.closest('.md-area').find('textarea'), $this.data('md-tag'), $this.data('md-block'), !$this.data('md-prepend'));
});
};
gl.text.removeListeners = function(form) {
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return $('.js-md', form).off();
};
return gl.text.truncate = function(string, maxLength) {
return string.substr(0, (maxLength - 3)) + '...';
};
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})(window);
}).call(this);