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编辑当前文件:/home2/sdektunc/.trash/media.3/plg_media-action_resize/js/resize-es5.js

(function () {
  'use strict';

/**
   * @copyright  (C) 2018 Open Source Matters, Inc. <https://www.joomla.org>
   * @license    GNU General Public License version 2 or later; see LICENSE.txt
   */
  var formElements;
  var activated = false; // Update image

var resize = function resize(width, height, image) {
    // The canvas where we will resize the image
    var canvas = document.createElement('canvas');
    canvas.width = width;
    canvas.height = height;
    canvas.getContext('2d').drawImage(image, 0, 0, width, height); // The format

var format = Joomla.MediaManager.Edit.original.extension === 'jpg' ? 'jpeg' : Joomla.MediaManager.Edit.original.extension; // The quality

var quality = formElements.resizeQuality.value; // Creating the data from the canvas

Joomla.MediaManager.Edit.current.contents = canvas.toDataURL("image/" + format, quality); // Updating the preview element

image.width = width;
    image.height = height;
    image.src = Joomla.MediaManager.Edit.current.contents; // Update the width input box

formElements.resizeWidth.value = parseInt(width, 10); // Update the height input box

formElements.resizeHeight.value = parseInt(height, 10); // Notify the app that a change has been made

window.dispatchEvent(new Event('mediaManager.history.point'));
    canvas = null;
  };

var initResize = function initResize(image) {
    // Update the input boxes
    formElements.resizeWidth.value = image.naturalWidth;
    formElements.resizeHeight.value = image.naturalHeight;

if (!activated) {
      activated = true;
      addListeners(image);
    }
  };

window.addEventListener('media-manager-edit-init', function () {
    // Get the form elements
    formElements = {
      resizeWidth: document.getElementById('jform_resize_width'),
      resizeHeight: document.getElementById('jform_resize_height'),
      resizeQuality: document.getElementById('jform_resize_quality')
    }; // Register the Events

Joomla.MediaManager.Edit.plugins.resize = {
      Activate: function Activate(image) {
        return new Promise(function (resolve
        /* , reject */
        ) {
          // Initialize
          initResize(image);
          resolve();
        });
      },
      Deactivate: function Deactivate()
      /* image */
      {
        return new Promise(function (resolve
        /* , reject */
        ) {
          resolve();
        });
      }
    };
  }, {
    once: true
  });

}());