KOKINIO - MANAGER

Edit File: edit-images.js

/**
 * @copyright  (C) 2018 Open Source Matters, Inc. <https://www.joomla.org>
 * @license    GNU General Public License version 2 or later; see LICENSE.txt
 */
if (!Joomla) {
  throw new Error('Joomla API is not properly initialized');
}

Joomla.MediaManager = Joomla.MediaManager || {};

class Edit {
  constructor() {
    // Get the options from Joomla.optionStorage
    this.options = Joomla.getOptions('com_media', {});

if (!this.options) {
      throw new Error('Initialization error "edit-images.js"');
    }

this.extension = this.options.uploadPath.split('.').pop();
    this.fileType = ['jpeg', 'jpg'].includes(this.extension) ? 'jpeg' : this.extension;
    this.options.currentUrl = new URL(window.location.href); // Initiate the registry

this.original = {
      filename: this.options.uploadPath.split('/').pop(),
      extension: this.extension,
      contents: `data:image/${this.fileType};base64,${this.options.contents}`
    };
    this.previousPluginDeactivated = new Promise(resolve => resolve);
    this.history = {};
    this.current = this.original;
    this.plugins = {};
    this.baseContainer = document.getElementById('media-manager-edit-container');

if (!this.baseContainer) {
      throw new Error('The image preview container is missing');
    }

this.createImageContainer(this.original);
    Joomla.MediaManager.Edit = this;
    window.dispatchEvent(new CustomEvent('media-manager-edit-init')); // Once the DOM is ready, initialize everything

customElements.whenDefined('joomla-tab').then(async () => {
      const tabContainer = document.getElementById('myTab');
      const tabsUlElement = tabContainer.firstElementChild;
      const links = [].slice.call(tabsUlElement.querySelectorAll('button[aria-controls]')); // Couple the tabs with the plugin objects

links.forEach((link, index) => {
        const tab = document.getElementById(link.getAttribute('aria-controls'));

if (index === 0) {
          tab.insertAdjacentElement('beforeend', this.baseContainer);
        }

link.addEventListener('joomla.tab.hidden', ({
          target
        }) => {
          if (!target) {
            this.previousPluginDeactivated = new Promise(resolve => resolve);
            return;
          }

this.previousPluginDeactivated = new Promise((resolve, reject) => {
            this.plugins[target.getAttribute('aria-controls').replace('attrib-', '')].Deactivate(this.imagePreview).then(resolve).catch(e => {
              // eslint-disable-next-line no-console
              console.log(e);
              reject();
            });
          });
        });
        link.addEventListener('joomla.tab.shown', ({
          target
        }) => {
          // Move the image container to the correct tab
          tab.insertAdjacentElement('beforeend', this.baseContainer);
          this.previousPluginDeactivated.then(() => this.plugins[target.getAttribute('aria-controls').replace('attrib-', '')].Activate(this.imagePreview)).catch(e => {
            // eslint-disable-next-line no-console
            console.log(e);
          });
        });
      });
      tabContainer.activateTab(0, false);
    });
    this.addHistoryPoint = this.addHistoryPoint.bind(this);
    this.createImageContainer = this.createImageContainer.bind(this);
    this.Reset = this.Reset.bind(this);
    this.Undo = this.Undo.bind(this);
    this.Redo = this.Redo.bind(this);
    this.createProgressBar = this.createProgressBar.bind(this);
    this.updateProgressBar = this.updateProgressBar.bind(this);
    this.removeProgressBar = this.removeProgressBar.bind(this);
    this.upload = this.upload.bind(this); // Create history entry

window.addEventListener('mediaManager.history.point', this.addHistoryPoint.bind(this));
  }
  /**
   * Creates a history snapshot
   * PRIVATE
   */

addHistoryPoint() {
    if (this.original !== this.current) {
      const key = Object.keys(this.history).length;

if (this.history[key] && this.history[key - 1] && this.history[key] === this.history[key - 1]) {
        return;
      }

this.history[key + 1] = this.current;
    }
  }
  /**
   * Creates the images for edit and preview
   * PRIVATE
   */

createImageContainer(data) {
    if (!data.contents) {
      throw new Error('Initialization error "edit-images.js"');
    }

this.imagePreview = document.createElement('img');
    this.imagePreview.src = data.contents;
    this.imagePreview.id = 'image-preview';
    this.imagePreview.style.height = 'auto';
    this.imagePreview.style.maxWidth = '100%';
    this.baseContainer.appendChild(this.imagePreview);
  } // Reset the image to the initial state

Reset()
  /* current */
  {
    this.current.contents = `data:image/${this.fileType};base64,${this.options.contents}`;
    this.imagePreview.setAttribute('src', this.current.contents);
    requestAnimationFrame(() => {
      requestAnimationFrame(() => {
        this.imagePreview.setAttribute('width', this.imagePreview.naturalWidth);
        this.imagePreview.setAttribute('height', this.imagePreview.naturalHeight);
      });
    });
  } // @TODO History
  // eslint-disable-next-line class-methods-use-this

Undo() {} // @TODO History
  // eslint-disable-next-line class-methods-use-this

Redo() {} // @TODO Create the progress bar
  // eslint-disable-next-line class-methods-use-this

createProgressBar() {} // @TODO Update the progress bar
  // eslint-disable-next-line class-methods-use-this

updateProgressBar()
  /* position */
  {} // @TODO Remove the progress bar
  // eslint-disable-next-line class-methods-use-this

removeProgressBar() {}
  /**
   * Uploads
   * Public
   */

upload(url, stateChangeCallback) {
    let format = Joomla.MediaManager.Edit.original.extension === 'jpg' ? 'jpeg' : Joomla.MediaManager.Edit.original.extension;

if (!format) {
      // eslint-disable-next-line prefer-destructuring
      format = /data:image\/(.+);/gm.exec(Joomla.MediaManager.Edit.original.contents)[1];
    }

if (!format) {
      throw new Error('Unable to determine image format');
    }

this.xhr = new XMLHttpRequest();

if (typeof stateChangeCallback === 'function') {
      this.xhr.onreadystatechange = stateChangeCallback;
    }

this.xhr.upload.onprogress = e => {
      this.updateProgressBar(e.loaded / e.total * 100);
    };

this.xhr.onload = () => {
      let resp;

try {
        resp = JSON.parse(this.xhr.responseText);
      } catch (er) {
        resp = null;
      }

if (resp) {
        if (this.xhr.status === 200) {
          if (resp.success === true) {
            this.removeProgressBar();
          }

if (resp.status === '1') {
            Joomla.renderMessages({
              success: [resp.message]
            }, 'true');
            this.removeProgressBar();
          }
        }
      } else {
        this.removeProgressBar();
      }

this.xhr = null;
    };

this.xhr.onerror = () => {
      this.removeProgressBar();
      this.xhr = null;
    };

this.xhr.open('PUT', url, true);
    this.xhr.setRequestHeader('Content-Type', 'application/json');
    this.createProgressBar();
    this.xhr.send(JSON.stringify({
      name: Joomla.MediaManager.Edit.options.uploadPath.split('/').pop(),
      content: Joomla.MediaManager.Edit.current.contents.replace(`data:image/${format};base64,`, ''),
      [Joomla.MediaManager.Edit.options.csrfToken]: 1
    }));
  }

} // Initiate the Editor API
// eslint-disable-next-line no-new

new Edit();
/**
 * Compute the corrent URL
 *
 * @param {boolean} isModal is the URL for a modal window
 *
 * @return {{}} the URL object
 */

const getUrl = isModal => {
  const newUrl = Joomla.MediaManager.Edit.options.currentUrl;
  const params = new URLSearchParams(newUrl.search);
  params.set('view', 'media');
  params.delete('path');
  params.delete('mediatypes');
  const {
    uploadPath
  } = Joomla.MediaManager.Edit.options;
  let fileDirectory = uploadPath.split('/');
  fileDirectory.pop();
  fileDirectory = fileDirectory.join('/'); // If we are in root add a backslash

if (fileDirectory.endsWith(':')) {
    fileDirectory = `${fileDirectory}/`;
  }

params.set('path', fileDirectory); // Respect the images_only URI param

const mediaTypes = document.querySelector('input[name="mediatypes"]');
  params.set('mediatypes', mediaTypes && mediaTypes.value ? mediaTypes.value : '0');

if (isModal) {
    params.set('tmpl', 'component');
  }

newUrl.search = params;
  return newUrl;
}; // Customize the Toolbar buttons behavior

Joomla.submitbutton = task => {
  const url = new URL(`${Joomla.MediaManager.Edit.options.apiBaseUrl}&task=api.files&path=${Joomla.MediaManager.Edit.options.uploadPath}`);

switch (task) {
    case 'apply':
      Joomla.MediaManager.Edit.upload(url, null);
      Joomla.MediaManager.Edit.imagePreview.src = Joomla.MediaManager.Edit.current.contents;
      Joomla.MediaManager.Edit.original = Joomla.MediaManager.Edit.current;
      Joomla.MediaManager.Edit.history = {};

(async () => {
        const activeTab = [].slice.call(document.querySelectorAll('joomla-tab-element')).filter(tab => tab.hasAttribute('active'));

try {
          await Joomla.MediaManager.Edit.plugins[activeTab[0].id.replace('attrib-', '')].Deactivate(Joomla.MediaManager.Edit.imagePreview);
          await Joomla.MediaManager.Edit.plugins[activeTab[0].id.replace('attrib-', '')].Activate(Joomla.MediaManager.Edit.imagePreview);
        } catch (e) {
          // eslint-disable-next-line no-console
          console.log(e);
        }
      })();

break;

case 'save':
      Joomla.MediaManager.Edit.upload(url, () => {
        if (Joomla.MediaManager.Edit.xhr.readyState === XMLHttpRequest.DONE) {
          if (window.self !== window.top) {
            window.location = getUrl(true);
          } else {
            window.location = getUrl();
          }
        }
      });
      break;

case 'cancel':
      if (window.self !== window.top) {
        window.location = getUrl(true);
      } else {
        window.location = getUrl();
      }

break;

case 'reset':
      Joomla.MediaManager.Edit.Reset('initial');
      break;
  }
};
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