Javascript 敲除定制装订不';t更新
我用TinyMCE Wysiwyg编辑器定制了这个数据绑定,由于某种原因,当我选择一个新的文本输入时,它不会更新。有些东西告诉我,也许更新应该销毁绑定,只是为了重新初始化它,但我无法让它工作Javascript 敲除定制装订不';t更新,javascript,jquery,data-binding,knockout.js,tinymce,Javascript,Jquery,Data Binding,Knockout.js,Tinymce,我用TinyMCE Wysiwyg编辑器定制了这个数据绑定,由于某种原因,当我选择一个新的文本输入时,它不会更新。有些东西告诉我,也许更新应该销毁绑定,只是为了重新初始化它,但我无法让它工作 ko.bindingHandlers.tinymce = { init: function (element, valueAccessor, allBindingsAccessor, context) { var options = allBindingsAccessor().tinymceOp
ko.bindingHandlers.tinymce = {
init: function (element, valueAccessor, allBindingsAccessor, context) {
var options = allBindingsAccessor().tinymceOptions || {};
var modelValue = valueAccessor();
var value = ko.utils.unwrapObservable(valueAccessor());
var el = $(element)
//handle edits made in the editor. Updates after an undo point is reached.
options.setup = function (ed) {
console.log(ed)
ed.onChange.add(function (ed, l) {
if (ko.isWriteableObservable(modelValue)) {
modelValue(l.content);
}
});
};
//handle destroying an editor
ko.utils.domNodeDisposal.addDisposeCallback(element, function () {
setTimeout(function () { $(element).tinymce().remove() }, 0)
});
//$(element).tinymce(options);
setTimeout(function () { $(element).tinymce(options); }, 0);
el.html(value);
},
update: function (element, valueAccessor, allBindingsAccessor, context) {
var el = $(element)
var value = ko.utils.unwrapObservable(valueAccessor());
var id = el.attr('id')
alert("Value=" + value);
//handle programmatic updates to the observable
// also makes sure it doesn't update it if it's the same.
// otherwise, it will reload the instance, causing the cursor to jump.
if (id !== undefined) { // Does not work
var content = tinyMCE.getInstanceById(id).getContent({ format: 'raw' });
if (content !== value) {
//el.html(value);
el.val(value);
}
}
}
};
对于第一个选择,只调用一次更新部分。选择新文本批次不会触发警报。为什么?
Fiddler here:它停止工作,因为更新函数的
tinyMCE.getInstanceById(id)
行中抛出了异常
以下是固定和简化版本:
ko.bindingHandlers.tinymce = {
init: function (element, valueAccessor, allBindingsAccessor, context) {
var options = allBindingsAccessor().tinymceOptions || {};
function writeModelValue(ed) {
var modelValue = valueAccessor();
if (ko.isWriteableObservable(modelValue)) {
modelValue(ed.getContent());
}
}
//handle edits made in the editor
options.setup = function (ed) {
ed.onChange.add(writeModelValue); //on add undo point
ed.onUndo.add(writeModelValue); //on undo
ed.onRedo.add(writeModelValue); //on redo
};
$(element).tinymce(options);
//handle destroying an editor
ko.utils.domNodeDisposal.addDisposeCallback(element, function () {
$(element).tinymce().remove();
});
},
update: function (element, valueAccessor, allBindingsAccessor, context) {
var value = ko.utils.unwrapObservable(valueAccessor());
if(value !== $(element).html()) {
$(element).html(value);
}
}
};
JSIDLE:Thanx@LostInComputer!这么简单。太棒了!:)然而,编辑的行为似乎有点奇怪。设置粗体/斜体/下划线(可能更多)格式并使用左/右箭头键时,光标会跳到文本的开头。初始化部分是否缺少某些内容?已修复。仅当值与修复箭头键的当前值不同时才更新该值,但CRLF后的格式和换行…修复了该问题。原来l.content不等于ed.getContent()!