无论如何,我设法做到了,使用 editor.ui.add 和 editor.ui.addHandler。这是一个屏幕截图:
插件.js:
CKEDITOR.plugins.add('add_zoomable_to_image',
{
init: function( editor )
{
var disabled_span_color = "#cccccc";
var enabled_span_color = "#000000";
var cb;
var span;
var html =
"<div style='height: 25px; display: inline-block'>" +
"<div style='margin: 5px'><input class='add_zoomable_cb' type='checkbox' disabled='disabled'>" +
"<span class='add_zoomable_span' style='color: " + disabled_span_color + "'> Add zoomable to image</span>" +
"</div>" +
"</div>";
editor.ui.add('add_zoomable_to_image', "zoomable_button", {});
editor.ui.addHandler("zoomable_button",
{
create: function ()
{
return {
render: function (editor, output)
{
output.push(html);
return {};
}
};
}
});
editor.on("selectionChange", function()
{
var sel = editor.getSelection();
var ranges = sel.getRanges();
if (ranges.length == 1)
{
var el = sel.getStartElement();
if (el.is('img'))
{
enable_input();
if (el.hasClass('zoomable'))
check_cb();
else
uncheck_cb();
}
else
disable_input();
}
else
disable_input();
});
editor.on("instanceReady", function ()
{
cb = $('.add_zoomable_cb');
span = $('.add_zoomable_span');
cb.change(function()
{
var element = editor.getSelection().getStartElement();
if (cb.is(':checked'))
element.addClass('zoomable');
else
element.removeClass('zoomable');
});
});
function enable_input()
{
cb.removeAttr('disabled');
span.css('color', enabled_span_color);
}
function disable_input()
{
uncheck_cb();
cb.attr('disabled', 'disabled');
span.css('color', disabled_span_color);
}
function check_cb()
{
cb.attr('checked', 'checked');
}
function uncheck_cb()
{
cb.removeAttr('checked');
}
}
});