web-apps/apps/presentationeditor/main/app/controller/Viewport.js

/*
 *
 * (c) Copyright Ascensio System SIA 2010-2019
 *
 * This program is a free software product. You can redistribute it and/or
 * modify it under the terms of the GNU Affero General Public License (AGPL)
 * version 3 as published by the Free Software Foundation. In accordance with
 * Section 7(a) of the GNU AGPL its Section 15 shall be amended to the effect
 * that Ascensio System SIA expressly excludes the warranty of non-infringement
 * of any third-party rights.
 *
 * This program is distributed WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR  PURPOSE. For
 * details, see the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
 *
 * You can contact Ascensio System SIA at 20A-12 Ernesta Birznieka-Upisha
 * street, Riga, Latvia, EU, LV-1050.
 *
 * The  interactive user interfaces in modified source and object code versions
 * of the Program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU AGPL version 3.
 *
 * Pursuant to Section 7(b) of the License you must retain the original Product
 * logo when distributing the program. Pursuant to Section 7(e) we decline to
 * grant you any rights under trademark law for use of our trademarks.
 *
 * All the Product's GUI elements, including illustrations and icon sets, as
 * well as technical writing content are licensed under the terms of the
 * Creative Commons Attribution-ShareAlike 4.0 International. See the License
 * terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
 *
*/
/**
 *    Viewport.js
 *
 *    Controller for the viewport
 *
 *    Created by Julia Radzhabova on 26 March 2014
 *    Copyright (c) 2018 Ascensio System SIA. All rights reserved.
 *
 */

define([
    'core',
    'common/main/lib/view/Header',
    'common/main/lib/view/SearchBar',
    'presentationeditor/main/app/view/DocumentPreview',
    'presentationeditor/main/app/view/Viewport'
//    'documenteditor/main/app/view/LeftMenu'
], function (Viewport) {
    'use strict';

    PE.Controllers.Viewport = Backbone.Controller.extend(_.assign({
        // Specifying a Viewport model
        models: [],

        // Specifying a collection of out Viewport
        collections: [],

        // Specifying application views
        views: [
            'Viewport',   // is main application layout
            'Common.Views.Header',
            'DocumentPreview'
        ],

        // When controller is created let's setup view event listeners
        initialize: function() {
            var me = this;

            // This most important part when we will tell our controller what events should be handled
            this.addListeners({
                'FileMenu': {
                    'menu:hide': me.onFileMenu.bind(me, 'hide'),
                    'menu:show': me.onFileMenu.bind(me, 'show')
                },
                'Toolbar': {
                    'render:before' : function (toolbar) {
                        var config = PE.getController('Main').appOptions;
                        toolbar.setExtra('right', me.header.getPanel('right', config));
                        if (!config.isEdit || config.customization && !!config.customization.compactHeader)
                            toolbar.setExtra('left', me.header.getPanel('left', config));
                    },
                    'view:compact'  : function (toolbar, state) {
                        me.viewport.vlayout.getItem('toolbar').height = state ?
                            Common.Utils.InternalSettings.get('toolbar-height-compact') : Common.Utils.InternalSettings.get('toolbar-height-normal');
                    },
                    'undo:disabled' : function (state) {
                        if ( me.header.btnUndo ) {
                            if ( me.header.btnUndo.keepState )
                                me.header.btnUndo.keepState.disabled = state;
                            else me.header.btnUndo.setDisabled(state);
                        }
                    },
                    'redo:disabled' : function (state) {
                        if ( me.header.btnRedo ) {
                            if ( me.header.btnRedo.keepState )
                                me.header.btnRedo.keepState.disabled = state;
                            else me.header.btnRedo.setDisabled(state);
                        }
                    },
                    'print:disabled' : function (state) {
                        if ( me.header.btnPrint )
                            me.header.btnPrint.setDisabled(state);
                    },
                    'save:disabled' : function (state) {
                        if ( me.header.btnSave )
                            me.header.btnSave.setDisabled(state);
                    }
                }
            });
            Common.NotificationCenter.on('preview:start', this.onPreviewStart.bind(this));
        },

        setApi: function(api) {
            this.api = api;
            this.api.asc_registerCallback('asc_onCoAuthoringDisconnect',this.onApiCoAuthoringDisconnect.bind(this));
            Common.NotificationCenter.on('api:disconnect',              this.onApiCoAuthoringDisconnect.bind(this));
        },

        getApi: function() {
            return this.api;
        },

        // When our application is ready, lets get started
        onLaunch: function() {
            // Create and render main view
            this.viewport = this.createView('Viewport').render();

            this.api = new Asc.asc_docs_api({
                'id-view'  : 'editor_sdk',
                'translate': this.getApplication().getController('Main').translationTable
            });

            this.header   = this.createView('Common.Views.Header', {
                headerCaption: 'Presentation Editor',
                storeUsers: PE.getCollection('Common.Collections.Users')
            });
            this.docPreview   = this.createView('DocumentPreview', {}).render();

            Common.NotificationCenter.on('layout:changed', _.bind(this.onLayoutChanged, this));
            $(window).on('resize', _.bind(this.onWindowResize, this));

            var leftPanel = $('#left-menu'),
                histPanel = $('#left-panel-history');
            this.viewport.hlayout.on('layout:resizedrag', function() {
                this.api.Resize();
                Common.localStorage.setItem('pe-mainmenu-width', histPanel.is(':visible') ? (histPanel.width()+SCALE_MIN) : leftPanel.width() );
            }, this);

            this.boxSdk = $('#editor_sdk');
            this.boxSdk.css('border-left', 'none');

            Common.NotificationCenter.on('app:face', this.onAppShowed.bind(this));
            Common.NotificationCenter.on('app:ready', this.onAppReady.bind(this));
            Common.NotificationCenter.on('search:show', _.bind(this.onSearchShow, this));
        },

        onAppShowed: function (config) {
            var me = this;
            me.appConfig = config;

            var _intvars = Common.Utils.InternalSettings;
            var $filemenu = $('.toolbar-fullview-panel');
            $filemenu.css('top', Common.UI.LayoutManager.isElementVisible('toolbar') ? _intvars.get('toolbar-height-tabs') : 0);

            me.viewport.$el.attr('applang', me.appConfig.lang.split(/[\-_]/)[0]);

            if ( !config.isEdit ||
                ( !Common.localStorage.itemExists("pe-compact-toolbar") &&
                    config.customization && config.customization.compactToolbar ))
            {
                me.viewport.vlayout.getItem('toolbar').height = _intvars.get('toolbar-height-compact');
            }

            if ( config.isEdit && (!(config.customization && config.customization.compactHeader))) {
                var $title = me.viewport.vlayout.getItem('title').el;
                $title.html(me.header.getPanel('title', config)).show();
                $title.find('.extra').html(me.header.getPanel('left', config));

                var toolbar = me.viewport.vlayout.getItem('toolbar');
                toolbar.el.addClass('top-title');
                toolbar.height -= _intvars.get('toolbar-height-tabs') - _intvars.get('toolbar-height-tabs-top-title');

                var _tabs_new_height = _intvars.get('toolbar-height-tabs-top-title');
                _intvars.set('toolbar-height-tabs', _tabs_new_height);
                _intvars.set('toolbar-height-compact', _tabs_new_height);
                _intvars.set('toolbar-height-normal', _tabs_new_height + _intvars.get('toolbar-height-controls'));

                $filemenu.css('top', (Common.UI.LayoutManager.isElementVisible('toolbar') ? _tabs_new_height : 0) + _intvars.get('document-title-height'));

                toolbar = me.getApplication().getController('Toolbar').getView('Toolbar');
                toolbar.btnCollabChanges = me.header.btnSave;
            }

            if ( config.customization ) {
                if ( config.customization.toolbarNoTabs )
                    me.viewport.vlayout.getItem('toolbar').el.addClass('style-off-tabs');

                if ( config.customization.toolbarHideFileName )
                    me.viewport.vlayout.getItem('toolbar').el.addClass('style-skip-docname');
            }

            me.header.btnSearch.on('toggle', me.onSearchToggle.bind(this));
        },

        onAppReady: function (config) {
        },

        onLayoutChanged: function(area) {
            switch (area) {
            default:
                this.viewport.vlayout.doLayout();
            case 'rightmenu':
                this.viewport.hlayout.doLayout();
                break;
            case 'history':
                var panel = this.viewport.hlayout.items[1];
                if (panel.resize.el) {
                    this.boxSdk.css('border-left', '');
                    panel.resize.el.show();
                }
                this.viewport.hlayout.doLayout();
                break;
            case 'leftmenu':
                var panel = this.viewport.hlayout.items[0];
                if (panel.resize.el) {
                    if (panel.el.width() > 40) {
                        this.boxSdk.css('border-left', '');
                        panel.resize.el.show();
                    } else {
                        panel.resize.el.hide();
                        this.boxSdk.css('border-left', '0 none');
                    }
                }
                this.viewport.hlayout.doLayout();
                break;
            case 'header':
            case 'toolbar':
            case 'status':
                this.viewport.vlayout.doLayout();
                break;
            }
            this.api.Resize();
        },

        onWindowResize: function(e) {
            this.onLayoutChanged('window');
            Common.NotificationCenter.trigger('window:resize');
        },

        onPreviewStart: function(slidenum, presenter, fromApiEvent) {
            this.previewPanel = this.previewPanel || this.getView('DocumentPreview');
            var me = this,
                isResized = false;
            
            var reporterObject = (presenter) ? PE.getController('Main').document : null;
            if (reporterObject) {
                reporterObject.translations = {
                    reset: me.previewPanel.txtReset,
                    endSlideshow: me.previewPanel.txtEndSlideshow,
                    slideOf: me.previewPanel.slideIndexText,
                    finalMessage: me.previewPanel.txtFinalMessage
                };
                reporterObject.token = me.api.asc_getSessionToken();
                reporterObject.customization = me.viewport.mode.customization;
            }

            if (this.previewPanel && !this.previewPanel.isVisible() && this.api) {
                setTimeout(function(){
                    Common.UI.Menu.Manager.hideAll();
                }, 100);
                this.previewPanel.show();
                var _onWindowResize = function() {
                    if (isResized) return;
                    isResized = true;
                    Common.NotificationCenter.off('window:resize', _onWindowResize);
                    me.api.StartDemonstration('presentation-preview', _.isNumber(slidenum) ? slidenum : 0, reporterObject);
                    Common.component.Analytics.trackEvent('Viewport', 'Preview');
                };
                if (!me.viewport.mode.isDesktopApp && !Common.Utils.isIE11 && !presenter) {
                    Common.NotificationCenter.on('window:resize', _onWindowResize);
                    !fromApiEvent && me.fullScreen(document.documentElement);
                    setTimeout(function(){
                        _onWindowResize();
                    }, 100);
                } else
                    _onWindowResize();
            }
        },

        fullScreen: function(element) {
            if (element) {
                if(element.requestFullscreen) {
                    element.requestFullscreen();
                } else if(element.webkitRequestFullscreen) {
                    element.webkitRequestFullscreen();
                } else if(element.mozRequestFullScreen) {
                    element.mozRequestFullScreen();
                } else if(element.msRequestFullscreen) {
                    element.msRequestFullscreen();
                }
            }
        },

        onFileMenu: function (opts) {
            var me = this;
            var _need_disable =  opts == 'show';

            me.header.lockHeaderBtns( 'undo', _need_disable );
            me.header.lockHeaderBtns( 'redo', _need_disable );
            me.header.lockHeaderBtns( 'users', _need_disable );
        },

        onApiCoAuthoringDisconnect: function(enableDownload) {
            if (this.header) {
                if (this.header.btnDownload && !enableDownload)
                    this.header.btnDownload.hide();
                if (this.header.btnPrint && !enableDownload)
                    this.header.btnPrint.hide();
                if (this.header.btnEdit)
                    this.header.btnEdit.hide();
                this.header.lockHeaderBtns( 'rename-user', true);
            }
        },

        SetDisabled: function(disable) {
            this.header && this.header.lockHeaderBtns( 'rename-user', disable);
        },

        onNotesShow: function(bIsShow) {
            this.header && this.header.mnuitemHideNotes.setChecked(!bIsShow, true);
            Common.localStorage.setBool('pe-hidden-notes', !bIsShow);
        },

        onSearchShow: function () {
            this.header.btnSearch && this.header.btnSearch.toggle(true);
        },

        onSearchToggle: function () {
            var leftMenu = this.getApplication().getController('LeftMenu');
            if (leftMenu.isSearchPanelVisible()) {
                this.header.btnSearch.toggle(false, true);
                leftMenu.getView('LeftMenu').panelSearch.focus();
                return;
            }
            if (!this.searchBar) {
                var isVisible = leftMenu && leftMenu.leftMenu && leftMenu.leftMenu.isVisible();
                this.searchBar = new Common.UI.SearchBar( !isVisible ? {
                    showOpenPanel: false,
                    width: 303
                } : {});
                this.searchBar.on('hide', _.bind(function () {
                    this.header.btnSearch.toggle(false, true);
                }, this));
            }
            if (this.header.btnSearch.pressed) {
                this.searchBar.show(this.api.asc_GetSelectedText());
            } else {
                this.searchBar.hide();
            }
        },

        isSearchBarVisible: function () {
            return this.searchBar && this.searchBar.isVisible();
        },

        textFitPage: 'Fit to Page',
        textFitWidth: 'Fit to Width'
    }, PE.Controllers.Viewport));
});