openproject/frontend/app/components/wp-attachments/wp-attachments.directive.ts

//-- copyright
// OpenProject is a project management system.
// Copyright (C) 2012-2015 the OpenProject Foundation (OPF)
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License version 3.
//
// OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
// Copyright (C) 2006-2013 Jean-Philippe Lang
// Copyright (C) 2010-2013 the ChiliProject Team
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
//
// See doc/COPYRIGHT.rdoc for more details.
//++

import {wpDirectivesModule} from '../../angular-modules';
import {WpAttachmentsService} from './wp-attachments.service';
import {WorkPackageNotificationService} from '../wp-edit/wp-notification.service';
import {scopedObservable} from '../../helpers/angular-rx-utils';
import {WorkPackageCacheService} from '../work-packages/work-package-cache.service';
import {WorkPackageResourceInterface} from '../api/api-v3/hal-resources/work-package-resource.service';
import {CollectionResourceInterface} from '../api/api-v3/hal-resources/collection-resource.service';

export class WorkPackageAttachmentsController {
  public text:any;

  public workPackage:WorkPackageResourceInterface;
  public wpSingleViewCtrl;

  public attachments:any[] = [];
  public fetchingConfiguration:boolean = false;
  public files:File[] = [];
  public hasRightToUpload:boolean = false;
  public loading:boolean = false;
  public rejectedFiles:any[] = [];

  public settings = {
    maximumFileSize: null
  };

  public size:any;

  private currentlyFocusing;

  constructor(protected $scope:any,
              protected $element:ng.IAugmentedJQuery,
              protected wpCacheService:WorkPackageCacheService,
              protected wpAttachments:WpAttachmentsService,
              protected NotificationsService:any,
              protected wpNotificationsService:WorkPackageNotificationService,
              protected I18n:op.I18n,
              protected ConfigurationService:any,
              protected ConversionService:any) {

    this.attachments = this.workPackage.isNew ? wpAttachments.pendingAttachments : this.attachments;

    this.text = {
      dropFiles: I18n.t('js.label_drop_files'),
      dropFilesHint: I18n.t('js.label_drop_files_hint'),
      destroyConfirmation: I18n.t('js.text_attachment_destroy_confirmation'),
      removeFile: arg => I18n.t('js.label_remove_file', arg)
    };

    if (angular.isDefined(this.wpSingleViewCtrl)) {
      this.wpSingleViewCtrl.attachments = this.attachments;
    }

    this.hasRightToUpload = angular.isDefined(this.workPackage.addAttachment) || this.workPackage.isNew;

    this.fetchingConfiguration = true;
    ConfigurationService.api().then(settings => {
      this.settings.maximumFileSize = settings.maximumAttachmentFileSize;
      this.fetchingConfiguration = false;
    });

    if (this.workPackage && this.workPackage.attachments) {
      this.loadAttachments(false);
    }

    $scope.$on('work_packages.attachment.add', (evt, file) => {
      this.attachments.push(file);
    });

    if (this.workPackage.isNew) {
      this.attachments = this.wpAttachments.pendingAttachments;
      this.registerCreateObserver();
    }
    else {

      this.registerEditObserver();
    }
  }

  private registerEditObserver() {
    scopedObservable(this.$scope, this.wpCacheService.loadWorkPackage(<number> this.workPackage.id))
      .subscribe((wp:WorkPackageResourceInterface) => {
        this.workPackage = wp;
        this.loadAttachments(true);
      });
  }

  private registerCreateObserver() {
    scopedObservable(this.$scope, this.wpCacheService.onNewWorkPackage())
      .subscribe((wp:WorkPackageResourceInterface) => {
        this.wpAttachments.uploadPendingAttachments(wp).then(() => {
          // Reload the work package after attachments are uploaded to
          // provide the correct links, in e.g., the description
          this.wpCacheService.loadWorkPackage(<number> wp.id, true);
        });
      });
  }

  public upload():void {
    if (this.workPackage.isNew) {
      this.files.forEach((file) => {
        this.attachments.push(file);
      });

      return;
    }

    if (this.files.length > 0) {
      this.wpAttachments.upload(this.workPackage, this.files).then(() => {
        this.files = [];
        this.workPackage.updateAttachments();
      });
    }
  };

  public loadAttachments(refresh:boolean = true):ng.IPromise<any> {
    this.loading = true;

    return this.workPackage.attachments.$load(refresh)
      .then((collection:CollectionResourceInterface) => {
        this.attachments.length = 0;
        angular.extend(this.attachments, collection.elements);
      })
      .finally(() => {
        this.loading = false;
      });
  }

  public remove(file):void {
    if (!this.workPackage.isNew && file._type === 'Attachment') {
      file.delete()
        .then(() => this.workPackage.updateAttachments())
        .catch(error => {
          this.wpNotificationsService.handleErrorResponse(error, this.workPackage);
        });
    }

    _.pull(this.attachments, file);
  }

  public focus(attachment:any):void {
    this.currentlyFocusing = attachment;
  };

  public focusing(attachment:any):boolean {
    return this.currentlyFocusing === attachment;
  };

  public filterFiles(files):void {
    // Directories cannot be uploaded and as such, should not become files in
    // the sense of this directive.  The files within the directories will
    // be taken though.
    _.remove(files, (file:any) => {
      return file.type === 'directory';
    });
  };

  public uploadFilteredFiles(files):void {
    this.filterFiles(files);
    this.upload();
  }
}

function wpAttachmentsDirective():ng.IDirective {
  return {
    restrict: 'E',
    templateUrl: '/components/wp-attachments/wp-attachments.directive.html',
    scope: {
      workPackage: '=',
      wpSingleViewCtrl: '='
    },

    bindToController: true,
    controller: WorkPackageAttachmentsController,
    controllerAs: '$ctrl'
  };
}

wpDirectivesModule.directive('wpAttachments', wpAttachmentsDirective);