@syncfusion/ej2-richtexteditor
Version:
Essential JS 2 RichTextEditor component
219 lines (204 loc) • 7.39 kB
JavaScript
/**
* MarkdownSelection internal module
*
* @hidden
*/
var MarkdownSelection = /** @class */ (function () {
function MarkdownSelection() {
}
/**
* markdown getLineNumber method
*
* @param {HTMLTextAreaElement} textarea - specifies the text area element
* @param {number} point - specifies the number value
* @returns {number} - returns the value
* @hidden
*/
MarkdownSelection.prototype.getLineNumber = function (textarea, point) {
return textarea.value.substr(0, point).split('\n').length;
};
/**
* markdown getSelectedText method
*
* @param {HTMLTextAreaElement} textarea - specifies the text area element
* @returns {string} - specifies the string value
* @hidden
*/
MarkdownSelection.prototype.getSelectedText = function (textarea) {
var start = textarea.selectionStart;
var end = textarea.selectionEnd;
return textarea.value.substring(start, end);
};
/**
* markdown getAllParents method
*
* @param {string} value - specifies the string value
* @returns {string[]} - returns the string value
* @hidden
*/
MarkdownSelection.prototype.getAllParents = function (value) {
return value.split('\n');
};
/**
* markdown getSelectedLine method
*
* @param {HTMLTextAreaElement} textarea - specifies the text area element
* @returns {string} - returns the string value
* @hidden
*/
MarkdownSelection.prototype.getSelectedLine = function (textarea) {
var lines = this.getAllParents(textarea.value);
var index = this.getLineNumber(textarea, textarea.selectionStart);
return lines[index - 1];
};
/**
* markdown getLine method
*
* @param {HTMLTextAreaElement} textarea - specifies the text area element
* @param {number} index - specifies the number value
* @returns {string} - returns the string value
* @hidden
*/
MarkdownSelection.prototype.getLine = function (textarea, index) {
var lines = this.getAllParents(textarea.value);
return lines[index];
};
/**
* markdown getSelectedParentPoints method
*
* @param {HTMLTextAreaElement} textarea - specifies the text area element
* @returns {string} - returns the string value
* @hidden
*/
MarkdownSelection.prototype.getSelectedParentPoints = function (textarea) {
var lines = this.getAllParents(textarea.value);
var start = this.getLineNumber(textarea, textarea.selectionStart);
var end = this.getLineNumber(textarea, textarea.selectionEnd);
var parents = this.getSelectedText(textarea).split('\n');
var selectedPoints = [];
var selectedLine = lines[start - 1];
var startLength = lines.slice(0, start - 1).join('').length;
var firstPoint = {};
firstPoint.line = start - 1;
firstPoint.start = startLength + firstPoint.line;
firstPoint.end = selectedLine !== '' ? firstPoint.start +
selectedLine.length + 1 : firstPoint.start + selectedLine.length;
firstPoint.text = selectedLine;
selectedPoints.push(firstPoint);
if (parents.length > 1) {
for (var i = 1; i < parents.length - 1; i++) {
var points = {};
points.line = selectedPoints[i - 1].line + 1;
points.start = parents[i] !== '' ? selectedPoints[i - 1].end : selectedPoints[i - 1].end;
points.end = points.start + parents[i].length + 1;
points.text = parents[i];
selectedPoints.push(points);
}
var lastPoint = {};
lastPoint.line = selectedPoints[selectedPoints.length - 1].line + 1;
lastPoint.start = selectedPoints[selectedPoints.length - 1].end;
lastPoint.end = lastPoint.start + lines[end - 1].length + 1;
lastPoint.text = lines[end - 1];
selectedPoints.push(lastPoint);
}
return selectedPoints;
};
/**
* markdown setSelection method
*
* @param {HTMLTextAreaElement} textarea - specifies the text area element
* @param {number} start - specifies the start vaulue
* @param {number} end - specifies the end value
* @returns {void}
* @hidden
*/
MarkdownSelection.prototype.setSelection = function (textarea, start, end) {
textarea.setSelectionRange(start, end);
textarea.focus();
};
/**
* markdown save method
*
* @param {number} start - specifies the start vaulue
* @param {number} end - specifies the end value
* @returns {void}
* @hidden
*/
MarkdownSelection.prototype.save = function (start, end) {
this.selectionStart = start;
this.selectionEnd = end;
};
/**
* markdown restore method
*
* @param {HTMLTextAreaElement} textArea - specifies the text area element
* @returns {void}
* @hidden
*/
MarkdownSelection.prototype.restore = function (textArea) {
this.setSelection(textArea, this.selectionStart, this.selectionEnd);
};
/**
* markdown isStartWith method
*
* @param {string} line - specifies the string value
* @param {string} command - specifies the string value
* @returns {boolean} - returns the boolean value
* @hidden
*/
MarkdownSelection.prototype.isStartWith = function (line, command) {
var isStart = false;
var regExp = RegExp;
if (line) {
var reg = line.trim() === command.trim() ?
new regExp('^(' + this.replaceSpecialChar(command.trim()) + ')', 'gim') :
new regExp('^(' + this.replaceSpecialChar(command) + ')', 'gim');
isStart = reg.test(line.trim());
}
return isStart;
};
/**
* markdown replaceSpecialChar method
*
* @param {string} value - specifies the string value
* @returns {string} - returns the value
* @hidden
*/
MarkdownSelection.prototype.replaceSpecialChar = function (value) {
// eslint-disable-next-line
return value.replace(/[`~!@#$%^&*()_|+\-=?;:'",.<>\{\}\[\]\\\/]/g, '\\$&');
};
/**
* markdown isClear method
*
* @param {string} parents - specifies the parent element
* @param {string} regex - specifies the regex value
* @returns {boolean} - returns the boolean value
* @hidden
*/
MarkdownSelection.prototype.isClear = function (parents, regex) {
var isClear = false;
var regExp = RegExp;
for (var i = 0; i < parents.length; i++) {
if (new regExp(regex, 'gim').test(parents[i].text)) {
return true;
}
}
return isClear;
};
/**
* markdown getSelectedInlinePoints method
*
* @param {HTMLTextAreaElement} textarea - specifies the text area
* @returns {void}
* @hidden
*/
MarkdownSelection.prototype.getSelectedInlinePoints = function (textarea) {
var start = textarea.selectionStart;
var end = textarea.selectionEnd;
var selection = this.getSelectedText(textarea);
return { start: start, end: end, text: selection };
};
return MarkdownSelection;
}());
export { MarkdownSelection };