merge fixes for presentation view.

2 files changed, 0 insertions, 996 deletions

diff --git a/src/client/views/presentationview/PresentationList.tsx b/src/client/views/presentationview/PresentationList.tsx
index f730b4cf2..da48a856a 100644
--- a/src/client/views/presentationview/PresentationList.tsx
+++ b/src/client/views/presentationview/PresentationList.tsx
@@ -17,9 +17,6 @@ interface PresListProps {
     presStatus: boolean;
     removeDocByRef(doc: Doc): boolean;
     clearElemMap(): void;
-    groupMappings: Map<String, Doc[]>;
-    presGroupBackUp: Doc;
-    presButtonBackUp: Doc;
 }
 
 
diff --git a/src/client/views/presentationview/PresentationView.tsx b/src/client/views/presentationview/PresentationView.tsx
deleted file mode 100644
index 54e789a0a..000000000
--- a/src/client/views/presentationview/PresentationView.tsx
+++ /dev/null
@@ -1,993 +0,0 @@
-import { observer } from "mobx-react";
-import React = require("react");
-import { observable, action, runInAction, reaction, autorun } from "mobx";
-import "./PresentationView.scss";
-import { DocumentManager } from "../../util/DocumentManager";
-import { Utils } from "../../../Utils";
-import { Doc, DocListCast, DocListCastAsync, WidthSym } from "../../../new_fields/Doc";
-import { listSpec } from "../../../new_fields/Schema";
-import { Cast, NumCast, FieldValue, PromiseValue, StrCast, BoolCast } from "../../../new_fields/Types";
-import { Id } from "../../../new_fields/FieldSymbols";
-import { List } from "../../../new_fields/List";
-import PresentationElement, { buttonIndex } from "./PresentationElement";
-import { library } from '@fortawesome/fontawesome-svg-core';
-import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
-import { faArrowRight, faArrowLeft, faPlay, faStop, faPlus, faTimes, faMinus, faEdit, faEye } from '@fortawesome/free-solid-svg-icons';
-import { Docs } from "../../documents/Documents";
-import { undoBatch, UndoManager } from "../../util/UndoManager";
-import PresentationViewList from "./PresentationList";
-import PresModeMenu from "./PresentationModeMenu";
-import { CollectionDockingView } from "../collections/CollectionDockingView";
-
-library.add(faArrowLeft);
-library.add(faArrowRight);
-library.add(faPlay);
-library.add(faStop);
-library.add(faPlus);
-library.add(faTimes);
-library.add(faMinus);
-library.add(faEdit);
-library.add(faEye);
-
-
-export interface PresViewProps {
-    Documents: List<Doc>;
-}
-
-const expandedWidth = 400;
-const presMinWidth = 300;
-
-@observer
-export class PresentationView extends React.Component<PresViewProps>  {
-    public static Instance: PresentationView;
-
-    //Mapping from presentation ids to a list of doc that represent a group
-    @observable groupMappings: Map<String, Doc[]> = new Map();
-    //mapping from docs to their rendered component
-    @observable presElementsMappings: Map<Doc, PresentationElement> = new Map();
-    //variable that holds all the docs in the presentation
-    @observable childrenDocs: Doc[] = [];
-    //variable to hold if presentation is started
-    @observable presStatus: boolean = false;
-    //back-up so that presentation stays the way it's when refreshed
-    @observable presGroupBackUp: Doc = new Doc();
-    @observable presButtonBackUp: Doc = new Doc();
-
-    //Keeping track of the doc for the current presentation
-    @observable curPresentation: Doc = new Doc();
-    //Mapping of guids to presentations.
-    @observable presentationsMapping: Map<String, Doc> = new Map();
-    //Mapping of presentations to guid, so that select option values can be given.
-    @observable presentationsKeyMapping: Map<Doc, String> = new Map();
-    //Variable to keep track of guid of the current presentation
-    @observable currentSelectedPresValue: string | undefined;
-    //A flag to keep track if title input is open, which is used in rendering.
-    @observable PresTitleInputOpen: boolean = false;
-    //Variable that holds reference to title input, so that new presentations get titles assigned.
-    @observable titleInputElement: HTMLInputElement | undefined;
-    @observable PresTitleChangeOpen: boolean = false;
-    @observable presMode: boolean = false;
-
-
-    @observable opacity = 1;
-    @observable persistOpacity = true;
-    @observable labelOpacity = 0;
-
-    //initilize class variables
-    constructor(props: PresViewProps) {
-        super(props);
-        PresentationView.Instance = this;
-    }
-
-    @action
-    toggle = (forcedValue: boolean | undefined) => {
-        if (forcedValue !== undefined) {
-            this.curPresentation.width = forcedValue ? expandedWidth : 0;
-        } else {
-            this.curPresentation.width = this.curPresentation.width === expandedWidth ? 0 : expandedWidth;
-        }
-    }
-
-    //The first lifecycle function that gets called to set up the current presentation.
-    async componentWillMount() {
-
-        this.props.Documents.forEach(async (doc, index: number) => {
-
-            //For each presentation received from mainContainer, a mapping is created.
-            let curDoc: Doc = await doc;
-            let newGuid = Utils.GenerateGuid();
-            this.presentationsKeyMapping.set(curDoc, newGuid);
-            this.presentationsMapping.set(newGuid, curDoc);
-
-            //The Presentation at first index gets set as default start presentation
-            if (index === 0) {
-                runInAction(() => this.currentSelectedPresValue = newGuid);
-                runInAction(() => this.curPresentation = curDoc);
-            }
-        });
-    }
-
-    //Second lifecycle function that gets called when component mounts. It makes sure to
-    //get the back-up information from previous session for the current presentation.
-    async componentDidMount() {
-        let docAtZero = await this.props.Documents[0];
-        runInAction(() => this.curPresentation = docAtZero);
-        this.curPresentation.width = 0;
-        this.setPresentationBackUps();
-    }
-
-
-    /**
-     * The function that retrieves the backUps for the current Presentation if present,
-     * otherwise initializes.
-     */
-    setPresentationBackUps = async () => {
-        //getting both backUp documents
-
-        let castedGroupBackUp = Cast(this.curPresentation.presGroupBackUp, Doc);
-        let castedButtonBackUp = Cast(this.curPresentation.presButtonBackUp, Doc);
-        //if instantiated before 
-        if (castedGroupBackUp instanceof Promise) {
-            castedGroupBackUp.then(doc => {
-                let toAssign = doc ? doc : new Doc();
-                this.curPresentation.presGroupBackUp = toAssign;
-                runInAction(() => this.presGroupBackUp = toAssign);
-                if (doc) {
-                    if (toAssign[Id] === doc[Id]) {
-                        this.retrieveGroupMappings();
-                    }
-                }
-            });
-
-            //if never instantiated a store doc yet
-        } else if (castedGroupBackUp instanceof Doc) {
-            let castedDoc: Doc = await castedGroupBackUp;
-            runInAction(() => this.presGroupBackUp = castedDoc);
-            this.retrieveGroupMappings();
-        } else {
-            runInAction(() => {
-                let toAssign = new Doc();
-                this.presGroupBackUp = toAssign;
-                this.curPresentation.presGroupBackUp = toAssign;
-
-            });
-
-        }
-        //if instantiated before 
-        if (castedButtonBackUp instanceof Promise) {
-            castedButtonBackUp.then(doc => {
-                let toAssign = doc ? doc : new Doc();
-                this.curPresentation.presButtonBackUp = toAssign;
-                runInAction(() => this.presButtonBackUp = toAssign);
-            });
-
-            //if never instantiated a store doc yet
-        } else if (castedButtonBackUp instanceof Doc) {
-            let castedDoc: Doc = await castedButtonBackUp;
-            runInAction(() => this.presButtonBackUp = castedDoc);
-
-        } else {
-            runInAction(() => {
-                let toAssign = new Doc();
-                this.presButtonBackUp = toAssign;
-                this.curPresentation.presButtonBackUp = toAssign;
-            });
-
-        }
-
-
-        //storing the presentation status,ie. whether it was stopped or playing
-        let presStatusBackUp = BoolCast(this.curPresentation.presStatus);
-        runInAction(() => this.presStatus = presStatusBackUp);
-    }
-
-    /**
-     * This is the function that is called to retrieve the groups that have been stored and
-     * push them to the groupMappings.
-     */
-    retrieveGroupMappings = async () => {
-        let castedGroupDocs = await DocListCastAsync(this.presGroupBackUp.groupDocs);
-        if (castedGroupDocs !== undefined) {
-            castedGroupDocs.forEach(async (groupDoc: Doc, index: number) => {
-                let castedGrouping = await DocListCastAsync(groupDoc.grouping);
-                let castedKey = StrCast(groupDoc.presentIdStore, null);
-                if (castedGrouping) {
-                    castedGrouping.forEach((doc: Doc) => {
-                        doc.presentId = castedKey;
-                    });
-                }
-                if (castedGrouping !== undefined && castedKey !== undefined) {
-                    this.groupMappings.set(castedKey, castedGrouping);
-                }
-            });
-        }
-    }
-
-    //observable means render is re-called every time variable is changed
-    @observable
-    collapsed: boolean = false;
-    closePresentation = action(() => this.curPresentation.width = 0);
-    next = async () => {
-        const current = NumCast(this.curPresentation.selectedDoc);
-        //asking to get document at current index
-        let docAtCurrentNext = await this.getDocAtIndex(current + 1);
-        if (docAtCurrentNext === undefined) {
-            return;
-        }
-        //asking for it's presentation id
-        let curNextPresId = StrCast(docAtCurrentNext.presentId);
-        let nextSelected = current + 1;
-
-        //if curDoc is in a group, selection slides until last one, if not it's next one
-        if (this.groupMappings.has(curNextPresId)) {
-            let currentsArray = this.groupMappings.get(StrCast(docAtCurrentNext.presentId))!;
-            nextSelected = current + currentsArray.length - currentsArray.indexOf(docAtCurrentNext);
-
-            //end of grup so go beyond
-            if (nextSelected === current) nextSelected = current + 1;
-        }
-
-        this.gotoDocument(nextSelected, current);
-
-    }
-    back = async () => {
-        const current = NumCast(this.curPresentation.selectedDoc);
-        //requesting for the doc at current index
-        let docAtCurrent = await this.getDocAtIndex(current);
-        if (docAtCurrent === undefined) {
-            return;
-        }
-
-        //asking for its presentation id.
-        let curPresId = StrCast(docAtCurrent.presentId);
-        let prevSelected = current - 1;
-        let zoomOut: boolean = false;
-
-        //checking if this presentation id is mapped to a group, if so chosing the first element in group
-        if (this.groupMappings.has(curPresId)) {
-            let currentsArray = this.groupMappings.get(StrCast(docAtCurrent.presentId))!;
-            prevSelected = current - currentsArray.length + (currentsArray.length - currentsArray.indexOf(docAtCurrent)) - 1;
-            //end of grup so go beyond
-            if (prevSelected === current) prevSelected = current - 1;
-
-            //checking if any of the group members had used zooming in
-            currentsArray.forEach((doc: Doc) => {
-                //let presElem: PresentationElement | undefined = this.presElementsMappings.get(doc);
-                if (this.presElementsMappings.get(doc)!.selected[buttonIndex.Show]) {
-                    zoomOut = true;
-                    return;
-                }
-            });
-
-        }
-
-        // if a group set that flag to zero or a single element
-        //If so making sure to zoom out, which goes back to state before zooming action
-        if (current > 0) {
-            if (zoomOut || this.presElementsMappings.get(docAtCurrent)!.selected[buttonIndex.Show]) {
-                let prevScale = NumCast(this.childrenDocs[prevSelected].viewScale, null);
-                let curScale = DocumentManager.Instance.getScaleOfDocView(this.childrenDocs[current]);
-                if (prevScale !== undefined) {
-                    if (prevScale !== curScale) {
-                        DocumentManager.Instance.zoomIntoScale(docAtCurrent, prevScale);
-                    }
-                }
-            }
-        }
-        this.gotoDocument(prevSelected, current);
-
-    }
-
-    /**
-     * This is the method that checks for the actions that need to be performed
-     * after the document has been presented, which involves 3 button options:
-     * Hide Until Presented, Hide After Presented, Fade After Presented
-     */
-    showAfterPresented = (index: number) => {
-        this.presElementsMappings.forEach((presElem: PresentationElement, key: Doc) => {
-            let selectedButtons: boolean[] = presElem.selected;
-            //the order of cases is aligned based on priority
-            if (selectedButtons[buttonIndex.HideTillPressed]) {
-                if (this.childrenDocs.indexOf(key) <= index) {
-                    key.opacity = 1;
-                }
-            }
-            if (selectedButtons[buttonIndex.HideAfter]) {
-                if (this.childrenDocs.indexOf(key) < index) {
-                    key.opacity = 0;
-                }
-            }
-            if (selectedButtons[buttonIndex.FadeAfter]) {
-                if (this.childrenDocs.indexOf(key) < index) {
-                    key.opacity = 0.5;
-                }
-            }
-        });
-    }
-
-    /**
-     * This is the method that checks for the actions that need to be performed
-     * before the document has been presented, which involves 3 button options:
-     * Hide Until Presented, Hide After Presented, Fade After Presented
-     */
-    hideIfNotPresented = (index: number) => {
-        this.presElementsMappings.forEach((presElem: PresentationElement, key: Doc) => {
-            let selectedButtons: boolean[] = presElem.selected;
-
-            //the order of cases is aligned based on priority
-
-            if (selectedButtons[buttonIndex.HideAfter]) {
-                if (this.childrenDocs.indexOf(key) >= index) {
-                    key.opacity = 1;
-                }
-            }
-            if (selectedButtons[buttonIndex.FadeAfter]) {
-                if (this.childrenDocs.indexOf(key) >= index) {
-                    key.opacity = 1;
-                }
-            }
-            if (selectedButtons[buttonIndex.HideTillPressed]) {
-                if (this.childrenDocs.indexOf(key) > index) {
-                    key.opacity = 0;
-                }
-            }
-        });
-    }
-
-    /**
-     * This method makes sure that cursor navigates to the element that
-     * has the option open and last in the group. If not in the group, and it has
-     * te option open, navigates to that element.
-     */
-    navigateToElement = async (curDoc: Doc, fromDoc: number) => {
-        let docToJump: Doc = curDoc;
-        let curDocPresId = StrCast(curDoc.presentId, null);
-        let willZoom: boolean = false;
-
-        //checking if in group
-        if (curDocPresId !== undefined) {
-            if (this.groupMappings.has(curDocPresId)) {
-                let currentDocGroup = this.groupMappings.get(curDocPresId)!;
-                currentDocGroup.forEach((doc: Doc, index: number) => {
-                    let selectedButtons: boolean[] = this.presElementsMappings.get(doc)!.selected;
-                    if (selectedButtons[buttonIndex.Navigate]) {
-                        docToJump = doc;
-                        willZoom = false;
-                    }
-                    if (selectedButtons[buttonIndex.Show]) {
-                        docToJump = doc;
-                        willZoom = true;
-                    }
-                });
-            }
-
-        }
-        //docToJump stayed same meaning, it was not in the group or was the last element in the group
-        if (docToJump === curDoc) {
-            //checking if curDoc has navigation open
-            let curDocButtons = this.presElementsMappings.get(curDoc)!.selected;
-            if (curDocButtons[buttonIndex.Navigate]) {
-                this.jumpToTabOrRight(curDocButtons, curDoc);
-            } else if (curDocButtons[buttonIndex.Show]) {
-                let curScale = DocumentManager.Instance.getScaleOfDocView(this.childrenDocs[fromDoc]);
-                if (curDocButtons[buttonIndex.OpenRight]) {
-                    //awaiting jump so that new scale can be found, since jumping is async
-                    await DocumentManager.Instance.jumpToDocument(curDoc, true);
-                } else {
-                    await DocumentManager.Instance.jumpToDocument(curDoc, true, undefined, doc => CollectionDockingView.Instance.AddTab(undefined, doc, undefined));
-                }
-
-                let newScale = DocumentManager.Instance.getScaleOfDocView(curDoc);
-                curDoc.viewScale = newScale;
-
-                //saving the scale user was on before zooming in
-                if (curScale !== 1) {
-                    this.childrenDocs[fromDoc].viewScale = curScale;
-                }
-
-            }
-            return;
-        }
-        let curScale = DocumentManager.Instance.getScaleOfDocView(this.childrenDocs[fromDoc]);
-        let curDocButtons = this.presElementsMappings.get(docToJump)!.selected;
-
-
-        if (curDocButtons[buttonIndex.OpenRight]) {
-            //awaiting jump so that new scale can be found, since jumping is async
-            await DocumentManager.Instance.jumpToDocument(docToJump, willZoom);
-        } else {
-            await DocumentManager.Instance.jumpToDocument(docToJump, willZoom, undefined, doc => CollectionDockingView.Instance.AddTab(undefined, doc, undefined));
-        }
-        let newScale = DocumentManager.Instance.getScaleOfDocView(curDoc);
-        curDoc.viewScale = newScale;
-        //saving the scale that user was on
-        if (curScale !== 1) {
-            this.childrenDocs[fromDoc].viewScale = curScale;
-        }
-
-    }
-
-    /**
-     * This function  checks if right option is clicked on a presentation element, if not it does open it as a tab
-     * with help of CollectionDockingView.
-     */
-    jumpToTabOrRight = (curDocButtons: boolean[], curDoc: Doc) => {
-        if (curDocButtons[buttonIndex.OpenRight]) {
-            DocumentManager.Instance.jumpToDocument(curDoc, false);
-        } else {
-            DocumentManager.Instance.jumpToDocument(curDoc, false, undefined, doc => CollectionDockingView.Instance.AddTab(undefined, doc, undefined));
-        }
-    }
-
-    /**
-     * Async function that supposedly return the doc that is located at given index.
-     */
-    getDocAtIndex = async (index: number) => {
-        const list = FieldValue(Cast(this.curPresentation.data, listSpec(Doc)));
-        if (!list) {
-            return undefined;
-        }
-        if (index < 0 || index >= list.length) {
-            return undefined;
-        }
-
-        this.curPresentation.selectedDoc = index;
-        //awaiting async call to finish to get Doc instance
-        const doc = await list[index];
-        return doc;
-    }
-
-    /**
-     * The function that removes a doc from a presentation. It also makes sure to
-     * do necessary updates to backUps and mappings stored locally.
-     */
-    @action
-    public RemoveDoc = async (index: number) => {
-        const value = FieldValue(Cast(this.curPresentation.data, listSpec(Doc)));
-        if (value) {
-            let removedDoc = await value.splice(index, 1)[0];
-
-            //removing the Presentation Element stored for it
-            this.presElementsMappings.delete(removedDoc);
-
-            let removedDocPresentId = StrCast(removedDoc.presentId);
-
-            //Removing it from local mapping of the groups
-            if (this.groupMappings.has(removedDocPresentId)) {
-                let removedDocsGroup = this.groupMappings.get(removedDocPresentId);
-                if (removedDocsGroup) {
-                    removedDocsGroup.splice(removedDocsGroup.indexOf(removedDoc), 1);
-                    if (removedDocsGroup.length === 0) {
-                        this.groupMappings.delete(removedDocPresentId);
-                    }
-                }
-            }
-
-
-            let castedList = Cast(this.presButtonBackUp.selectedButtonDocs, listSpec(Doc));
-            if (castedList) {
-                for (let doc of castedList) {
-                    let curDoc = await doc;
-                    let curDocId = StrCast(curDoc.docId);
-                    if (curDocId === removedDoc[Id]) {
-                        castedList.splice(castedList.indexOf(curDoc), 1);
-                        break;
-
-                    }
-                }
-            }
-
-            //removing it from the backup of groups
-            let castedGroupDocs = await DocListCastAsync(this.presGroupBackUp.groupDocs);
-            if (castedGroupDocs) {
-                castedGroupDocs.forEach(async (groupDoc: Doc, index: number) => {
-                    let castedKey = StrCast(groupDoc.presentIdStore, null);
-                    if (castedKey === removedDocPresentId) {
-                        let castedGrouping = await DocListCastAsync(groupDoc.grouping);
-                        if (castedGrouping) {
-                            castedGrouping.splice(castedGrouping.indexOf(removedDoc), 1);
-                            if (castedGrouping.length === 0) {
-                                castedGroupDocs!.splice(castedGroupDocs!.indexOf(groupDoc), 1);
-                            }
-                        }
-                    }
-
-                });
-
-            }
-
-
-        }
-    }
-
-    /**
-     * An alternative remove method that removes a doc from presentation by its actual
-     * reference.
-     */
-    public removeDocByRef = (doc: Doc) => {
-        let indexOfDoc = this.childrenDocs.indexOf(doc);
-        const value = FieldValue(Cast(this.curPresentation.data, listSpec(Doc)));
-        if (value) {
-            value.splice(indexOfDoc, 1)[0];
-        }
-        if (indexOfDoc !== - 1) {
-            return true;
-        }
-        return false;
-    }
-
-    //The function that is called when a document is clicked or reached through next or back.
-    //it'll also execute the necessary actions if presentation is playing.
-    @action
-    public gotoDocument = async (index: number, fromDoc: number) => {
-        const list = FieldValue(Cast(this.curPresentation.data, listSpec(Doc)));
-        if (!list) {
-            return;
-        }
-        if (index < 0 || index >= list.length) {
-            return;
-        }
-        this.curPresentation.selectedDoc = index;
-
-        if (!this.presStatus) {
-            this.presStatus = true;
-            this.startPresentation(index);
-        }
-
-        const doc = await list[index];
-        if (this.presStatus) {
-            this.navigateToElement(doc, fromDoc);
-            this.hideIfNotPresented(index);
-            this.showAfterPresented(index);
-        }
-
-    }
-
-    //Function that is called to resetGroupIds, so that documents get new groupIds at
-    //first load, when presentation is changed.
-    resetGroupIds = async () => {
-        let castedGroupDocs = await DocListCastAsync(this.presGroupBackUp.groupDocs);
-        if (castedGroupDocs !== undefined) {
-            castedGroupDocs.forEach(async (groupDoc: Doc, index: number) => {
-                let castedGrouping = await DocListCastAsync(groupDoc.grouping);
-                if (castedGrouping) {
-                    castedGrouping.forEach((doc: Doc) => {
-                        doc.presentId = Utils.GenerateGuid();
-                    });
-                }
-            });
-        }
-        runInAction(() => this.groupMappings = new Map());
-    }
-
-    /**
-     * Adds a document to the presentation view
-     **/
-    @undoBatch
-    @action
-    public PinDoc(doc: Doc) {
-        //add this new doc to props.Document
-        const data = Cast(this.curPresentation.data, listSpec(Doc));
-        if (data) {
-            data.push(doc);
-        } else {
-            this.curPresentation.data = new List([doc]);
-        }
-
-        this.toggle(true);
-    }
-
-    //Function that sets the store of the children docs.
-    @action
-    setChildrenDocs = (docList: Doc[]) => {
-        this.childrenDocs = docList;
-    }
-
-    //The function that is called to render the play or pause button depending on
-    //if presentation is running or not.
-    renderPlayPauseButton = () => {
-        if (this.presStatus) {
-            return <button title="Reset Presentation" className="presentation-button" onClick={this.startOrResetPres}><FontAwesomeIcon icon="stop" /></button>;
-        } else {
-            return <button title="Start Presentation From Start" className="presentation-button" onClick={this.startOrResetPres}><FontAwesomeIcon icon="play" /></button>;
-        }
-    }
-
-    //The function that starts or resets presentaton functionally, depending on status flag.
-    @action
-    startOrResetPres = async () => {
-        if (this.presStatus) {
-            this.resetPresentation();
-        } else {
-            this.presStatus = true;
-            let startIndex = await this.findStartDocument();
-            this.startPresentation(startIndex);
-            const current = NumCast(this.curPresentation.selectedDoc);
-            this.gotoDocument(startIndex, current);
-        }
-        this.curPresentation.presStatus = this.presStatus;
-    }
-
-    /**
-     * This method is called to find the start document of presentation. So
-     * that when user presses on play, the correct presentation element will be
-     * selected.
-     */
-    findStartDocument = async () => {
-        let docAtZero = await this.getDocAtIndex(0);
-        if (docAtZero === undefined) {
-            return 0;
-        }
-        let docAtZeroPresId = StrCast(docAtZero.presentId);
-
-        if (this.groupMappings.has(docAtZeroPresId)) {
-            let group = this.groupMappings.get(docAtZeroPresId)!;
-            let lastDoc = group[group.length - 1];
-            return this.childrenDocs.indexOf(lastDoc);
-        } else {
-            return 0;
-        }
-    }
-
-    //The function that resets the presentation by removing every action done by it. It also
-    //stops the presentaton.
-    @action
-    resetPresentation = () => {
-        this.childrenDocs.forEach((doc: Doc) => {
-            doc.opacity = 1;
-            doc.viewScale = 1;
-        });
-        this.curPresentation.selectedDoc = 0;
-        this.presStatus = false;
-        this.curPresentation.presStatus = this.presStatus;
-        if (this.childrenDocs.length === 0) {
-            return;
-        }
-        DocumentManager.Instance.zoomIntoScale(this.childrenDocs[0], 1);
-    }
-
-
-    //The function that starts the presentation, also checking if actions should be applied
-    //directly at start.
-    startPresentation = (startIndex: number) => {
-        let selectedButtons: boolean[];
-        this.presElementsMappings.forEach((component: PresentationElement, doc: Doc) => {
-            selectedButtons = component.selected;
-            if (selectedButtons[buttonIndex.HideTillPressed]) {
-                if (this.childrenDocs.indexOf(doc) > startIndex) {
-                    doc.opacity = 0;
-                }
-
-            }
-            if (selectedButtons[buttonIndex.HideAfter]) {
-                if (this.childrenDocs.indexOf(doc) < startIndex) {
-                    doc.opacity = 0;
-                }
-            }
-            if (selectedButtons[buttonIndex.FadeAfter]) {
-                if (this.childrenDocs.indexOf(doc) < startIndex) {
-                    doc.opacity = 0.5;
-                }
-            }
-
-        });
-
-    }
-
-    /**
-     * The function that is called to add a new presentation to the presentationView.
-     * It sets up te mappings and local copies of it. Resets the groupings and presentation.
-     * Makes the new presentation current selected, and retrieve the back-Ups if present.
-     */
-    @action
-    addNewPresentation = (presTitle: string) => {
-        //creating a new presentation doc
-        let newPresentationDoc = Docs.Create.TreeDocument([], { title: presTitle });
-        this.props.Documents.push(newPresentationDoc);
-
-        //setting that new doc as current
-        this.curPresentation = newPresentationDoc;
-
-        //storing the doc in local copies for easier access
-        let newGuid = Utils.GenerateGuid();
-        this.presentationsMapping.set(newGuid, newPresentationDoc);
-        this.presentationsKeyMapping.set(newPresentationDoc, newGuid);
-
-        //resetting the previous presentation's actions so that new presentation can be loaded.
-        this.resetGroupIds();
-        this.resetPresentation();
-        this.presElementsMappings = new Map();
-        this.currentSelectedPresValue = newGuid;
-        this.setPresentationBackUps();
-
-    }
-
-    /**
-     * The function that is called to change the current selected presentation.
-     * Changes the presentation, also resetting groupings and presentation in process.
-     * Plus retrieving the backUps for the newly selected presentation.
-     */
-    @action
-    getSelectedPresentation = (e: React.ChangeEvent<HTMLSelectElement>) => {
-        //get the guid of the selected presentation
-        let selectedGuid = e.target.value;
-        //set that as current presentation
-        this.curPresentation = this.presentationsMapping.get(selectedGuid)!;
-
-        //reset current Presentations local things so that new one can be loaded
-        this.resetGroupIds();
-        this.resetPresentation();
-        this.presElementsMappings = new Map();
-        this.currentSelectedPresValue = selectedGuid;
-        this.setPresentationBackUps();
-
-
-    }
-
-    /**
-     * The function that is called to render either select for presentations, or title inputting.
-     */
-    renderSelectOrPresSelection = () => {
-        let presentationList = DocListCast(this.props.Documents);
-        if (this.PresTitleInputOpen || this.PresTitleChangeOpen) {
-            return <input ref={(e) => this.titleInputElement = e!} type="text" className="presentationView-title" placeholder="Enter Name!" onKeyDown={this.submitPresentationTitle} />;
-        } else {
-            return <select value={this.currentSelectedPresValue} id="pres_selector" className="presentationView-title" onChange={this.getSelectedPresentation}>
-                {presentationList.map((doc: Doc, index: number) => {
-                    let mappedGuid = this.presentationsKeyMapping.get(doc);
-                    let docGuid: string = mappedGuid ? mappedGuid.toString() : "";
-                    return <option key={docGuid} value={docGuid}>{StrCast(doc.title)}</option>;
-                })}
-            </select>;
-        }
-    }
-
-    /**
-     * The function that is called on enter press of title input. It gives the
-     * new presentation the title user entered. If nothing is entered, gives a default title.
-     */
-    @action
-    submitPresentationTitle = (e: React.KeyboardEvent) => {
-        if (e.keyCode === 13) {
-            let presTitle = this.titleInputElement!.value;
-            this.titleInputElement!.value = "";
-            if (this.PresTitleInputOpen) {
-                if (presTitle === "") {
-                    presTitle = "Presentation";
-                }
-                this.PresTitleInputOpen = false;
-                this.addNewPresentation(presTitle);
-            } else if (this.PresTitleChangeOpen) {
-                this.PresTitleChangeOpen = false;
-                this.changePresentationTitle(presTitle);
-            }
-        }
-    }
-
-    /**
-     * The function that is called to remove a presentation from all its copies, and the main Container's
-     * list. Sets up the next presentation as current.
-     */
-    @action
-    removePresentation = async () => {
-        if (this.presentationsMapping.size !== 1) {
-            let presentationList = Cast(this.props.Documents, listSpec(Doc));
-            let batch = UndoManager.StartBatch("presRemoval");
-
-            //getting the presentation that will be removed
-            let removedDoc = this.presentationsMapping.get(this.currentSelectedPresValue!);
-            //that presentation is removed
-            presentationList!.splice(presentationList!.indexOf(removedDoc!), 1);
-
-            //its mappings are removed from local copies
-            this.presentationsKeyMapping.delete(removedDoc!);
-            this.presentationsMapping.delete(this.currentSelectedPresValue!);
-
-            //the next presentation is set as current
-            let remainingPresentations = this.presentationsMapping.values();
-            let nextDoc = remainingPresentations.next().value;
-            this.curPresentation = nextDoc;
-
-
-            //Storing these for being able to undo changes
-            let curGuid = this.currentSelectedPresValue!;
-            let curPresStatus = this.presStatus;
-
-            //resetting the groups and presentation actions so that next presentation gets loaded
-            this.resetGroupIds();
-            this.resetPresentation();
-            this.currentSelectedPresValue = this.presentationsKeyMapping.get(nextDoc)!.toString();
-            this.setPresentationBackUps();
-
-            //Storing for undo
-            let currentGroups = this.groupMappings;
-            let curPresElemMapping = this.presElementsMappings;
-
-            //Event to undo actions that are not related to doc directly, aka. local things
-            UndoManager.AddEvent({
-                undo: action(() => {
-                    this.curPresentation = removedDoc!;
-                    this.presentationsMapping.set(curGuid, removedDoc!);
-                    this.presentationsKeyMapping.set(removedDoc!, curGuid);
-                    this.currentSelectedPresValue = curGuid;
-
-                    this.presStatus = curPresStatus;
-                    this.groupMappings = currentGroups;
-                    this.presElementsMappings = curPresElemMapping;
-                    this.setPresentationBackUps();
-
-                }),
-                redo: action(() => {
-                    this.curPresentation = nextDoc;
-                    this.presStatus = false;
-                    this.presentationsKeyMapping.delete(removedDoc!);
-                    this.presentationsMapping.delete(curGuid);
-                    this.currentSelectedPresValue = this.presentationsKeyMapping.get(nextDoc)!.toString();
-                    this.setPresentationBackUps();
-
-                }),
-            });
-
-            batch.end();
-        }
-    }
-
-    /**
-     * The function that is called to change title of presentation to what user entered.
-     */
-    @undoBatch
-    changePresentationTitle = (newTitle: string) => {
-        if (newTitle === "") {
-            return;
-        }
-        this.curPresentation.title = newTitle;
-    }
-
-    /**
-     * On pointer down element that is catched on resizer of te
-     * presentation view. Sets up the event listeners to change the size with
-     * mouse move.
-     */
-    _downsize = 0;
-    onPointerDown = (e: React.PointerEvent) => {
-        this._downsize = e.clientX;
-        document.removeEventListener("pointermove", this.onPointerMove);
-        document.removeEventListener("pointerup", this.onPointerUp);
-        document.addEventListener("pointermove", this.onPointerMove);
-        document.addEventListener("pointerup", this.onPointerUp);
-        e.stopPropagation();
-        e.preventDefault();
-    }
-    /**
-     * Changes the size of the presentation view, with mouse move.
-     * Minimum size is set to 300, so that every button is visible.
-     */
-    @action
-    onPointerMove = (e: PointerEvent) => {
-
-        this.curPresentation.width = Math.max(window.innerWidth - e.clientX, presMinWidth);
-    }
-
-    /**
-     * The method that is called on pointer up event. It checks if the button is just
-     * clicked so that presentation view will be closed. The way it's done is to check 
-     * for minimal pixel change like 4, and accept it as it's just a click on top of the dragger.
-     */
-    @action
-    onPointerUp = (e: PointerEvent) => {
-        if (Math.abs(e.clientX - this._downsize) < 4) {
-            let presWidth = NumCast(this.curPresentation.width);
-            if (presWidth - presMinWidth !== 0) {
-                this.curPresentation.width = 0;
-            }
-            if (presWidth === 0) {
-                this.curPresentation.width = presMinWidth;
-            }
-        }
-        document.removeEventListener("pointermove", this.onPointerMove);
-        document.removeEventListener("pointerup", this.onPointerUp);
-    }
-
-    /**
-     * This function is a setter that opens up the 
-     * presentation mode, by setting it's render flag
-     * to true. It also closes the presentation view.
-     */
-    @action
-    openPresMode = () => {
-        if (!this.presMode) {
-            this.curPresentation.width = 0;
-            this.presMode = true;
-        }
-    }
-
-    /**
-     * This function closes the presentation mode by setting its
-     * render flag to false. It also opens up the presentation view.
-     * By setting it to it's minimum size.
-     */
-    @action
-    closePresMode = () => {
-        if (this.presMode) {
-            this.presMode = false;
-            this.curPresentation.width = presMinWidth;
-        }
-
-    }
-
-    /**
-     * Function that is called to render the presentation mode, depending on its flag.
-     */
-    renderPresMode = () => {
-        if (this.presMode) {
-            return <PresModeMenu next={this.next} back={this.back} startOrResetPres={this.startOrResetPres} presStatus={this.presStatus} closePresMode={this.closePresMode} />;
-        } else {
-            return (null);
-        }
-
-    }
-
-    render() {
-
-        let width = NumCast(this.curPresentation.width);
-
-        return (
-            <div>
-                <div className="presentationView-cont" onPointerEnter={action(() => !this.persistOpacity && (this.opacity = 1))} onPointerLeave={action(() => !this.persistOpacity && (this.opacity = 0.4))} style={{ width: width, overflowY: "scroll", overflowX: "hidden", opacity: this.opacity, transition: "0.7s opacity ease" }}>
-                    <div className="presentationView-heading">
-                        {this.renderSelectOrPresSelection()}
-                        <button title="Close Presentation" className='presentation-icon' onClick={this.closePresentation}><FontAwesomeIcon icon={"times"} /></button>
-                        <button title="Open Presentation Mode" className="presentation-icon" style={{ marginRight: 10 }} onClick={this.openPresMode}><FontAwesomeIcon icon={"eye"} /></button>
-                        <button title="Add Presentation" className="presentation-icon" style={{ marginRight: 10 }} onClick={() => {
-                            runInAction(() => { if (this.PresTitleChangeOpen) { this.PresTitleChangeOpen = false; } });
-                            runInAction(() => this.PresTitleInputOpen ? this.PresTitleInputOpen = false : this.PresTitleInputOpen = true);
-                        }}><FontAwesomeIcon icon={"plus"} /></button>
-                        <button title="Remove Presentation" className='presentation-icon' style={{ marginRight: 10 }} onClick={this.removePresentation}><FontAwesomeIcon icon={"minus"} /></button>
-                        <button title="Change Presentation Title" className="presentation-icon" style={{ marginRight: 10 }} onClick={() => {
-                            runInAction(() => { if (this.PresTitleInputOpen) { this.PresTitleInputOpen = false; } });
-                            runInAction(() => this.PresTitleChangeOpen ? this.PresTitleChangeOpen = false : this.PresTitleChangeOpen = true);
-                        }}><FontAwesomeIcon icon={"edit"} /></button>
-                    </div>
-                    <div className="presentation-buttons">
-                        <button title="Back" className="presentation-button" onClick={this.back}><FontAwesomeIcon icon={"arrow-left"} /></button>
-                        {this.renderPlayPauseButton()}
-                        <button title="Next" className="presentation-button" onClick={this.next}><FontAwesomeIcon icon={"arrow-right"} /></button>
-                    </div>
-
-                    <PresentationViewList
-                        mainDocument={this.curPresentation}
-                        deleteDocument={this.RemoveDoc}
-                        gotoDocument={this.gotoDocument}
-                        groupMappings={this.groupMappings}
-                        PresElementsMappings={this.presElementsMappings}
-                        setChildrenDocs={this.setChildrenDocs}
-                        presStatus={this.presStatus}
-                        presButtonBackUp={this.presButtonBackUp}
-                        presGroupBackUp={this.presGroupBackUp}
-                        removeDocByRef={this.removeDocByRef}
-                        clearElemMap={() => this.presElementsMappings.clear()}
-                    />
-                    <input
-                        type="checkbox"
-                        onChange={action((e: React.ChangeEvent<HTMLInputElement>) => {
-                            this.persistOpacity = e.target.checked;
-                            this.opacity = this.persistOpacity ? 1 : 0.4;
-                        })}
-                        checked={this.persistOpacity}
-                        style={{ position: "absolute", bottom: 5, left: 5 }}
-                        onPointerEnter={action(() => this.labelOpacity = 1)}
-                        onPointerLeave={action(() => this.labelOpacity = 0)}
-                    />
-                    <p style={{ position: "absolute", bottom: 1, left: 22, opacity: this.labelOpacity, transition: "0.7s opacity ease" }}>opacity {this.persistOpacity ? "persistent" : "on focus"}</p>
-                </div>
-                <div className="mainView-libraryHandle"
-                    style={{ cursor: "ew-resize", right: `${width - 10}px`, backgroundColor: "white", opacity: this.opacity, transition: "0.7s opacity ease" }}
-                    onPointerDown={this.onPointerDown}>
-                    <span title="library View Dragger" style={{ width: "100%", height: "100%", position: "absolute" }} />
-                </div>
-                {this.renderPresMode()}
-
-            </div>
-        );
-    }
-}