112 lines
4 KiB
JavaScript
112 lines
4 KiB
JavaScript
(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'));
|
|
});
|
|
};
|
|
return gl.text.removeListeners = function(form) {
|
|
return $('.js-md', form).off();
|
|
};
|
|
})(window);
|
|
|
|
}).call(this);
|