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vplus-html.webapp.assets.js.plugins.vueJs.vue-html-editor.js Maven / Gradle / Ivy

/**
 * A HTML editor control based on the summernote plugin.
 *
 * @param model
 *    the model bind to the control, which must be a two way binding variable.
 * @param language
 *    the optional language code. Default value is "en-US".
 * @param height
 *    the optional height of the HTML editor. Default value is 160.
 * @param minHeight
 *    the optional minimum height of the HTML editor. Default value is 160.
 * @param maxHeight
 *    the optional maximum height of the HTML editor. Default value is 800.
 *    A null value indicates no limitation.
 * @param name
 *    the optional name of the textarea control.
 * @param toolbar
 *    the optional configuration of toolbar buttons. Default value is
 *     [["font", ["bold", "italic", "underline", "clear"]],
 *      ["fontsize", ["fontsize"]],
 *      ["para", ["ul", "ol", "paragraph"]],
 *      ["color", ["color"]],
 *      ["insert", ["link", "picture", "hr"]]]
 * @author Haixing Hu
 */
module.exports = {
  replace: true,
  inherit: false,
  template: "",
  props: {
    model: {
      required: true,
      twoWay: true
    },
    language: {
      type: String,
      required: false,
      default: "en-US"
    },
    height: {
      type: Number,
      required: false,
      default: 160
    },
    minHeight: {
      type: Number,
      required: false,
      default: 160
    },
    maxHeight: {
      type: Number,
      required: false,
      default: 800
    },
    name: {
      type: String,
      required: false,
      default: ""
    },
    toolbar: {
      type: Array,
      required: false,
      default: function() {
        return [
          ["font", ["bold", "italic", "underline", "clear"]],
          ["fontsize", ["fontsize"]],
          ["para", ["ul", "ol", "paragraph"]],
          ["color", ["color"]],
          ["insert", ["link", "picture", "hr"]]
        ];
      }
    }
  },
  beforeCompile: function() {
    this.isChanging = false;
    this.control = null;
  },
  ready: function() {
    //  initialize the summernote
    if (this.minHeight > this.height) {
      this.minHeight = this.height;
    }
    if (this.maxHeight < this.height) {
      this.maxHeight = this.height;
    }
    var me = this;
    this.control = $(this.$el);
    this.control.summernote({
      lang: this.language,
      height: this.height,
      minHeight: this.minHeight,
      maxHeight: this.maxHeight,
      toolbar: this.toolbar,
      callbacks: {
        onInit: function() {
          me.control.summernote("code", me.model);
        }
      }
    }).on("summernote.change", function() {
      // Note that we do not use the "onChange" options of the summernote
      // constructor. Instead, we use a event handler of "summernote.change"
      // event because that I don't know how to trigger the "onChange" event
      // handler after changing the code of summernote via ".summernote('code')" function.
      if (! me.isChanging) {
        me.isChanging = true;
        var code = me.control.summernote("code");
        me.model = (code === null || code.length === 0 ? null : code);
        me.$nextTick(function () {
          me.isChanging = false;
        });
      }
    });
  },
  watch: {
    "model": function (val, oldVal) {
      if (! this.isChanging) {
        this.isChanging = true;
        var code = (val === null ? "" : val);
        this.control.summernote("code", code);
        this.isChanging = false;
      }
    }
  }
};




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