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99 lines
2.9 KiB
JavaScript
99 lines
2.9 KiB
JavaScript
/**
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* @see http://docs.angularjs.org/guide/concepts
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* @see http://docs.angularjs.org/api/ng.directive:ngModel.NgModelController
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* @see https://github.com/angular/angular.js/issues/528#issuecomment-7573166
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*/
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angular.module('contenteditable', [])
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.directive('contenteditable', ['$timeout', function($timeout) { return {
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restrict: 'A',
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require: '?ngModel',
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link: function(scope, element, attrs, ngModel) {
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// don't do anything unless this is actually bound to a model
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if (!ngModel) {
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return
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}
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// options
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var opts = {}
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angular.forEach([
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'stripBr',
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'noLineBreaks',
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'selectNonEditable',
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'moveCaretToEndOnChange',
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], function(opt) {
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var o = attrs[opt]
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opts[opt] = o && o !== 'false'
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})
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// view -> model
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element.bind('input', function(e) {
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scope.$apply(function() {
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var html, html2, rerender
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html = element.text()
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rerender = false
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if (opts.stripBr) {
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html = html.replace(/<br>$/, '')
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}
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if (opts.noLineBreaks) {
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html2 = html.replace(/<div>/g, '').replace(/<br>/g, '').replace(/<\/div>/g, '')
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if (html2 !== html) {
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rerender = true
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html = html2
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}
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}
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ngModel.$setViewValue(html)
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if (rerender) {
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ngModel.$render()
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}
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if (html === '') {
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// the cursor disappears if the contents is empty
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// so we need to refocus
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$timeout(function(){
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element[0].blur()
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element[0].focus()
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})
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}
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})
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})
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// model -> view
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var oldRender = ngModel.$render
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ngModel.$render = function() {
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var el, el2, range, sel
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if (!!oldRender) {
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oldRender()
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}
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element.html(ngModel.$viewValue || '')
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if (opts.moveCaretToEndOnChange) {
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el = element[0]
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range = document.createRange()
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sel = window.getSelection()
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if (el.childNodes.length > 0) {
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el2 = el.childNodes[el.childNodes.length - 1]
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range.setStartAfter(el2)
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} else {
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range.setStartAfter(el)
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}
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range.collapse(true)
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sel.removeAllRanges()
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sel.addRange(range)
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}
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}
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if (opts.selectNonEditable) {
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element.bind('click', function(e) {
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var range, sel, target
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target = e.toElement
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if (target !== this && angular.element(target).attr('contenteditable') === 'false') {
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range = document.createRange()
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sel = window.getSelection()
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range.setStartBefore(target)
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range.setEndAfter(target)
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sel.removeAllRanges()
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sel.addRange(range)
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}
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})
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}
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}
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}}]);
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