CKEditor image2 改变初始大小

Question

使用 image2 插件上传图片时，高度和宽度最初设置为图片的尺寸。我们的一些用户正在上传大量图像，然后单击“确定”将其插入页面，而无需先选择合理的尺寸。图片填满了整个编辑器，他们看不到自己在做什么。

如何将初始大小设置为 300 像素宽？

我们正在使用带有 image2 插件的 CKEditor 4.11.1。

我可以通过破解 plugins/image2/dialog/image2.js 并将其添加到第 148 行附近的 onChangeSrc() 来实现：

 // Limit initial size
 if (width > editor.config.image_initial_width) {
   height = Math.round( editor.config.image_initial_width * ( height / width ) )
   width = editor.config.image_initial_width;
 }
 if (height > editor.config.image_initial_height) {
   width = Math.round( editor.config.image_initial_height * ( width / height) );
   height = editor.config.image_initial_height;
 }

然后定义 config.image_initial_height=300 和 config.image_initial_width=300。

但是我怎样才能在不进行黑客攻击的情况下实现这一目标呢？

Answer 1

这对我有用。

用我们自己的替换 image2 onChange 事件，但保留一个引用并调用它。

需要在config中定义两个变量：

    config.ckeditor_image2_initial_width = 300;
    config.ckeditor_image2_initial_height = 300;

jQuery(document).ready(function() {
  if (typeof CKEDITOR !== 'undefined') {
    CKEDITOR.on('dialogDefinition', function(e) {
      if (e.data.name == 'image2') {
        var infoTab = e.data.definition.getContents('info');
        var src_field = infoTab.elements[0].children[0].children[0];
        var widthfield = infoTab.elements[2].children[0];
        var height_field = infoTab.elements[2].children[1];
        var src_was_changed = 0;

        // Add a change function to the height field.
        height_field.onChange = heightChanged;

        // We need to add a change event to the src field but it already has
        // one from image2 plugin. Replace it with our own but keep a reference
        // and call it with CKEditor tools.
        // https://ckeditor.com/docs/ckeditor4/latest/api/CKEDITOR_tools.html#method-override
        src_field.onChange = CKEDITOR.tools.override(src_field.onChange, function(original) {
          return function() {
            // Call the original image2 onChangeSrc() function.
            original.call(this);
            var dialog = this.getDialog();
            var widget_image_src = 0;
            if (e.editor.widgets.selected.length) {
              widget_image_src = e.editor.widgets.selected[0].data.src;
            }
            // Fire only when image src is set and has actually changed.
            if (this.getValue() && (this.getValue() !== widget_image_src)) {
              var initial_width = e.editor.config.ckeditor_image2_initial_width;
              var initial_height = e.editor.config.ckeditor_image2_initial_height;
              if (typeof initial_width !== 'undefined' || typeof initial_height !== 'undefined') {
                // Set a flag to be used in heightChanged().
                src_was_changed = 1;
              }
            }
          }
        });

        // Change event for the image height field.
        function heightChanged() {
          if (src_was_changed) {
            src_was_changed = 0;
            var dialog = this.getDialog();
            var initial_width = e.editor.config.ckeditor_image2_initial_width;
            var initial_height = e.editor.config.ckeditor_image2_initial_height;
            var width_field = dialog.getContentElement('info', 'width');
            var height_field = dialog.getContentElement('info', 'height');
            var new_width = orig_width = width_field.getValue();
            var new_height = orig_height = height_field.getValue();
            if (new_height > initial_height) {
              new_height = initial_height;
              new_width = Math.round(orig_width * (initial_height / orig_height));
            }
            if (new_width > initial_width) {
              new_width = initial_width;
              new_height = Math.round(orig_height * (initial_width / orig_width));
            }
            width_field.setValue(new_width);
            height_field.setValue(new_height);
          }
        }
      }
    });
  }
});