merge with master

6 files changed, 979 insertions, 102 deletions

diff --git a/src/client/views/presentationview/PresentationElement.tsx b/src/client/views/presentationview/PresentationElement.tsx
index a16d7bc76..e2d8daea9 100644
--- a/src/client/views/presentationview/PresentationElement.tsx
+++ b/src/client/views/presentationview/PresentationElement.tsx
@@ -1,23 +1,30 @@
-import { observer } from "mobx-react";
-import React = require("react");
-import { Doc, DocListCast, DocListCastAsync } from "../../../new_fields/Doc";
-import { NumCast, BoolCast, StrCast, Cast } from "../../../new_fields/Types";
-import { Id } from "../../../new_fields/FieldSymbols";
-import { observable, action, computed, runInAction } from "mobx";
-import "./PresentationView.scss";
-import { Utils } from "../../../Utils";
 import { library } from '@fortawesome/fontawesome-svg-core';
-import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
-import { faFile as fileSolid, faFileDownload, faLocationArrow, faArrowUp, faSearch } from '@fortawesome/free-solid-svg-icons';
 import { faFile as fileRegular } from '@fortawesome/free-regular-svg-icons';
+import { faArrowUp, faFile as fileSolid, faFileDownload, faLocationArrow, faSearch, faArrowRight } from '@fortawesome/free-solid-svg-icons';
+import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
+import { action, computed, observable, runInAction } from "mobx";
+import { observer } from "mobx-react";
+import { Doc } from "../../../new_fields/Doc";
+import { Id } from "../../../new_fields/FieldSymbols";
 import { List } from "../../../new_fields/List";
 import { listSpec } from "../../../new_fields/Schema";
+import { BoolCast, Cast, NumCast, StrCast } from "../../../new_fields/Types";
+import { Utils, returnFalse, emptyFunction, returnOne, returnEmptyString } from "../../../Utils";
+import { DragManager, dropActionType, SetupDrag } from "../../util/DragManager";
+import { SelectionManager } from "../../util/SelectionManager";
+import { ContextMenu } from "../ContextMenu";
+import { Transform } from "../../util/Transform";
+import { DocumentView } from "../nodes/DocumentView";
+import { DocumentType } from "../../documents/Documents";
+import React = require("react");
+
 
 library.add(faArrowUp);
 library.add(fileSolid);
 library.add(faLocationArrow);
 library.add(fileRegular as any);
 library.add(faSearch);
+library.add(faArrowRight);
 
 interface PresentationElementProps {
     mainDocument: Doc;
@@ -30,6 +37,8 @@ interface PresentationElementProps {
     presStatus: boolean;
     presButtonBackUp: Doc;
     presGroupBackUp: Doc;
+    removeDocByRef(doc: Doc): boolean;
+    PresElementsMappings: Map<Doc, PresentationElement>;
 
 
 }
@@ -42,6 +51,7 @@ export enum buttonIndex {
     FadeAfter = 3,
     HideAfter = 4,
     Group = 5,
+    OpenRight = 6
 
 }
 
@@ -53,13 +63,25 @@ export enum buttonIndex {
 export default class PresentationElement extends React.Component<PresentationElementProps> {
 
     @observable private selectedButtons: boolean[];
+    private header?: HTMLDivElement | undefined;
+    private listdropDisposer?: DragManager.DragDropDisposer;
+    private presElRef: React.RefObject<HTMLDivElement>;
+    private backUpDoc: Doc | undefined;
 
 
     constructor(props: PresentationElementProps) {
         super(props);
-        this.selectedButtons = new Array(6);
+        this.selectedButtons = new Array(7);
+
+        this.presElRef = React.createRef();
+    }
+
+
+    componentWillUnmount() {
+        this.listdropDisposer && this.listdropDisposer();
     }
 
+
     /**
      * Getter to get the status of the buttons.
      */
@@ -71,14 +93,23 @@ export default class PresentationElement extends React.Component<PresentationEle
     //Lifecycle function that makes sure that button BackUp is received when mounted.
     async componentDidMount() {
         this.receiveButtonBackUp();
-
+        if (this.presElRef.current) {
+            this.header = this.presElRef.current;
+            this.createListDropTarget(this.presElRef.current);
+        }
     }
 
     //Lifecycle function that makes sure button BackUp is received when not re-mounted bu re-rendered.
     async componentDidUpdate() {
-        this.receiveButtonBackUp();
+        if (this.presElRef.current) {
+            this.header = this.presElRef.current;
+            this.createListDropTarget(this.presElRef.current);
+        }
     }
 
+    /**
+     * Function that will be called to receive stored backUp for buttons
+     */
     receiveButtonBackUp = async () => {
 
         //get the list that stores docs that keep track of buttons
@@ -86,19 +117,32 @@ export default class PresentationElement extends React.Component<PresentationEle
         if (!castedList) {
             this.props.presButtonBackUp.selectedButtonDocs = castedList = new List<Doc>();
         }
+
+        let foundDoc: boolean = false;
+
         //if this is the first time this doc mounts, push a doc for it to store
-        if (castedList.length <= this.props.index) {
+
+        for (let doc of castedList) {
+            let curDoc = await doc;
+            let curDocId = StrCast(curDoc.docId);
+            if (curDocId === this.props.document[Id]) {
+                let selectedButtonOfDoc = Cast(curDoc.selectedButtons, listSpec("boolean"), null);
+                if (selectedButtonOfDoc !== undefined) {
+                    runInAction(() => this.selectedButtons = selectedButtonOfDoc);
+                    foundDoc = true;
+                    this.backUpDoc = curDoc;
+                    break;
+                }
+            }
+        }
+
+        if (!foundDoc) {
             let newDoc = new Doc();
-            let defaultBooleanArray: boolean[] = new Array(6);
+            let defaultBooleanArray: boolean[] = new Array(7);
             newDoc.selectedButtons = new List(defaultBooleanArray);
+            newDoc.docId = this.props.document[Id];
             castedList.push(newDoc);
-            //otherwise update the selected buttons depending on storage.
-        } else {
-            let curDoc: Doc = await castedList[this.props.index];
-            let selectedButtonOfDoc = Cast(curDoc.selectedButtons, listSpec("boolean"), null);
-            if (selectedButtonOfDoc !== undefined) {
-                runInAction(() => this.selectedButtons = selectedButtonOfDoc);
-            }
+            this.backUpDoc = newDoc;
         }
 
     }
@@ -244,9 +288,9 @@ export default class PresentationElement extends React.Component<PresentationEle
      */
     @action
     autoSaveButtonChange = async (index: buttonIndex) => {
-        let castedList = (await DocListCastAsync(this.props.presButtonBackUp.selectedButtonDocs))!;
-        castedList[this.props.index].selectedButtons = new List(this.selectedButtons);
-
+        if (this.backUpDoc) {
+            this.backUpDoc.selectedButtons = new List(this.selectedButtons);
+        }
     }
 
     /**
@@ -356,6 +400,472 @@ export default class PresentationElement extends React.Component<PresentationEle
 
     }
 
+    /**
+     * Function that opens up the option to open a element on right when navigated,
+     * instead of openening it as tab as default.
+     */
+    @action
+    onRightTabClick = (e: React.MouseEvent) => {
+        e.stopPropagation();
+        if (this.selectedButtons[buttonIndex.OpenRight]) {
+            this.selectedButtons[buttonIndex.OpenRight] = false;
+            // action maybe
+        } else {
+            this.selectedButtons[buttonIndex.OpenRight] = true;
+        }
+        this.autoSaveButtonChange(buttonIndex.OpenRight);
+    }
+
+    /**
+     * Creating a drop target for drag and drop when called.
+     */
+    protected createListDropTarget = (ele: HTMLDivElement) => {
+        this.listdropDisposer && this.listdropDisposer();
+        if (ele) {
+            this.listdropDisposer = DragManager.MakeDropTarget(ele, { handlers: { drop: this.listDrop.bind(this) } });
+        }
+    }
+
+    /**
+     * Returns a local transformed coordinate array for given coordinates.
+     */
+    ScreenToLocalListTransform = (xCord: number, yCord: number) => {
+        return [xCord, yCord];
+    }
+
+    /**
+     * This method is called when a element is dropped on a already esstablished target.
+     * It makes sure to do appropirate action depending on if the item is dropped before
+     * or after the target.
+     */
+    listDrop = async (e: Event, de: DragManager.DropEvent) => {
+        let x = this.ScreenToLocalListTransform(de.x, de.y);
+        let rect = this.header!.getBoundingClientRect();
+        let bounds = this.ScreenToLocalListTransform(rect.left, rect.top + rect.height / 2);
+        let before = x[1] < bounds[1];
+        if (de.data instanceof DragManager.DocumentDragData) {
+            let addDoc = (doc: Doc) => Doc.AddDocToList(this.props.mainDocument, "data", doc, this.props.document, before);
+            e.stopPropagation();
+            //where does treeViewId come from
+            let movedDocs = (de.data.options === this.props.mainDocument[Id] ? de.data.draggedDocuments : de.data.droppedDocuments);
+            //console.log("How is this causing an issue");
+            let droppedDoc: Doc = de.data.droppedDocuments[0];
+            await this.updateGroupsOnDrop(droppedDoc, de);
+            document.removeEventListener("pointermove", this.onDragMove, true);
+            return (de.data.dropAction || de.data.userDropAction) ?
+                de.data.droppedDocuments.reduce((added: boolean, d: Doc) => Doc.AddDocToList(this.props.mainDocument, "data", d, this.props.document, before) || added, false)
+                : (de.data.moveDocument) ?
+                    movedDocs.reduce((added: boolean, d: Doc) => de.data.moveDocument(d, this.props.document, addDoc) || added, false)
+                    : de.data.droppedDocuments.reduce((added: boolean, d: Doc) => Doc.AddDocToList(this.props.mainDocument, "data", d, this.props.document, before), false);
+        }
+        document.removeEventListener("pointermove", this.onDragMove, true);
+
+        return false;
+    }
+
+    /**
+     * This method is called to update groups when the user drags and drops an
+     * element to a different place. It follows the default behaviour and reconstructs
+     * the groups in the way they would appear if clicked by user.
+     */
+    updateGroupsOnDrop = async (droppedDoc: Doc, de: DragManager.DropEvent) => {
+
+        let x = this.ScreenToLocalListTransform(de.x, de.y);
+        let rect = this.header!.getBoundingClientRect();
+        let bounds = this.ScreenToLocalListTransform(rect.left, rect.top + rect.height / 2);
+        let before = x[1] < bounds[1];
+
+        let droppedDocIndex = this.props.allListElements.indexOf(droppedDoc);
+
+        let dropIndexDiff = droppedDocIndex - this.props.index;
+
+        //checking if the position it's dropped corresponds to current location with 3 cases.
+        if (droppedDocIndex === this.props.index) {
+            return;
+        }
+
+        if (dropIndexDiff === 1 && !before) {
+            return;
+        }
+        if (dropIndexDiff === -1 && before) {
+            return;
+        }
+
+        let p = this.props;
+        let droppedDocSelectedButtons: boolean[] = await this.getSelectedButtonsOfDoc(droppedDoc);
+        let curDocGuid = StrCast(droppedDoc.presentId, null);
+
+        //Splicing the doc from its current group, since it's moved
+        if (p.groupMappings.has(curDocGuid)) {
+            let groupArray = this.props.groupMappings.get(curDocGuid)!;
+
+            if (droppedDocSelectedButtons[buttonIndex.Group]) {
+                let groupIndexOfDrop = groupArray.indexOf(droppedDoc);
+                let firstPart = groupArray.splice(0, groupIndexOfDrop);
+
+                if (firstPart.length > 1) {
+                    let newGroupGuid = Utils.GenerateGuid();
+                    firstPart.forEach((doc: Doc) => doc.presentId = newGroupGuid);
+                    this.props.groupMappings.set(newGroupGuid, firstPart);
+                }
+            }
+
+            groupArray.splice(groupArray.indexOf(droppedDoc), 1);
+            if (groupArray.length === 0) {
+                this.props.groupMappings.delete(curDocGuid);
+            }
+            droppedDoc.presentId = Utils.GenerateGuid();
+
+            //making sure to correct to groups after splicing, in case the dragged element
+            //had the grouping on.
+            let indexOfBelow = droppedDocIndex + 1;
+            if (indexOfBelow < this.props.allListElements.length && indexOfBelow > 1) {
+                let selectedButtonsOrigBelow: boolean[] = await this.getSelectedButtonsOfDoc(this.props.allListElements[indexOfBelow]);
+                let aboveBelowDoc: Doc = this.props.allListElements[droppedDocIndex - 1];
+                let aboveBelowDocSelectedButtons: boolean[] = await this.getSelectedButtonsOfDoc(aboveBelowDoc);
+                let belowDoc: Doc = this.props.allListElements[indexOfBelow];
+                let belowDocPresId = StrCast(belowDoc.presentId);
+
+                if (selectedButtonsOrigBelow[buttonIndex.Group]) {
+                    let belowDocGroup: Doc[] = this.props.groupMappings.get(belowDocPresId)!;
+                    if (aboveBelowDocSelectedButtons[buttonIndex.Group]) {
+                        let aboveBelowDocPresId = StrCast(aboveBelowDoc.presentId);
+                        if (this.props.groupMappings.has(aboveBelowDocPresId)) {
+                            let aboveBelowDocGroup: Doc[] = this.props.groupMappings.get(aboveBelowDocPresId)!;
+                            aboveBelowDocGroup.push(...belowDocGroup);
+                            this.props.groupMappings.delete(belowDocPresId);
+                            belowDocGroup.forEach((doc: Doc) => doc.presentId = aboveBelowDocPresId);
+
+                        }
+                    } else {
+                        belowDocGroup.unshift(aboveBelowDoc);
+                        aboveBelowDoc.presentId = belowDocPresId;
+                    }
+
+
+                }
+            }
+
+        }
+
+        //Case, when the dropped doc had the group button clicked.
+        if (droppedDocSelectedButtons[buttonIndex.Group]) {
+            if (before) {
+                if (this.props.index > 0) {
+                    let aboveDoc = this.props.allListElements[this.props.index - 1];
+                    let aboveDocGuid = StrCast(aboveDoc.presentId);
+                    if (this.props.groupMappings.has(aboveDocGuid)) {
+                        this.protectOrderAndPush(aboveDocGuid, aboveDoc, droppedDoc);
+                    } else {
+                        this.createNewGroup(aboveDoc, droppedDoc, aboveDocGuid);
+                    }
+                } else {
+                    let propsPresId = StrCast(this.props.document.presentId);
+                    if (this.selectedButtons[buttonIndex.Group]) {
+                        let propsArray = this.props.groupMappings.get(propsPresId)!;
+                        propsArray.unshift(droppedDoc);
+                        droppedDoc.presentId = propsPresId;
+                    }
+                }
+            } else {
+                let propsDocGuid = StrCast(this.props.document.presentId);
+                if (this.props.groupMappings.has(propsDocGuid)) {
+                    this.protectOrderAndPush(propsDocGuid, this.props.document, droppedDoc);
+
+                } else {
+                    this.createNewGroup(this.props.document, droppedDoc, propsDocGuid);
+                }
+            }
+
+
+            //if the group button of the element was not clicked.
+        } else {
+            if (before) {
+                if (this.props.index > 0) {
+
+                    let aboveDoc = this.props.allListElements[this.props.index - 1];
+                    let aboveDocGuid = StrCast(aboveDoc.presentId);
+                    let aboveDocSelectedButtons: boolean[] = await this.getSelectedButtonsOfDoc(aboveDoc);
+
+
+                    if (this.selectedButtons[buttonIndex.Group]) {
+                        if (aboveDocSelectedButtons[buttonIndex.Group]) {
+                            let aboveGroupArray = this.props.groupMappings.get(aboveDocGuid)!;
+                            let propsDocPresId = StrCast(this.props.document.presentId);
+
+                            this.halveGroupArray(aboveDoc, aboveGroupArray, droppedDoc, propsDocPresId);
+
+                        } else {
+                            let belowPresentId = StrCast(this.props.document.presentId);
+                            let belowGroup = this.props.groupMappings.get(belowPresentId)!;
+                            belowGroup.splice(belowGroup.indexOf(aboveDoc), 1);
+                            belowGroup.unshift(droppedDoc);
+                            droppedDoc.presentId = belowPresentId;
+                            aboveDoc.presentId = Utils.GenerateGuid();
+                        }
+
+
+                    }
+                } else {
+                    let propsPresId = StrCast(this.props.document.presentId);
+                    if (this.selectedButtons[buttonIndex.Group]) {
+                        let propsArray = this.props.groupMappings.get(propsPresId)!;
+                        propsArray.unshift(droppedDoc);
+                        droppedDoc.presentId = propsPresId;
+                    }
+                }
+            } else {
+                if (this.props.index < this.props.allListElements.length - 1) {
+                    let belowDoc = this.props.allListElements[this.props.index + 1];
+                    let belowDocGuid = StrCast(belowDoc.presentId);
+                    let belowDocSelectedButtons: boolean[] = await this.getSelectedButtonsOfDoc(belowDoc);
+
+                    let propsDocGuid = StrCast(this.props.document.presentId);
+
+                    if (belowDocSelectedButtons[buttonIndex.Group]) {
+                        let belowGroupArray = this.props.groupMappings.get(belowDocGuid)!;
+                        if (this.selectedButtons[buttonIndex.Group]) {
+
+                            let propsGroupArray = this.props.groupMappings.get(propsDocGuid)!;
+
+                            this.halveGroupArray(this.props.document, propsGroupArray, droppedDoc, belowDocGuid);
+
+                        } else {
+                            belowGroupArray.splice(belowGroupArray.indexOf(this.props.document), 1);
+                            this.props.document.presentId = Utils.GenerateGuid();
+                            belowGroupArray.unshift(droppedDoc);
+                            droppedDoc.presentId = belowDocGuid;
+                        }
+                    }
+
+                }
+            }
+        }
+        this.autoSaveGroupChanges();
+
+    }
+
+    /**
+     * This method returns the selectedButtons boolean array of the passed in doc,
+     * retrieving it from the back-up.
+     */
+    getSelectedButtonsOfDoc = async (paramDoc: Doc) => {
+        let castedList = Cast(this.props.presButtonBackUp.selectedButtonDocs, listSpec(Doc));
+        let foundSelectedButtons: boolean[] = new Array(7);
+
+        //if this is the first time this doc mounts, push a doc for it to store
+        for (let doc of castedList!) {
+            let curDoc = await doc;
+            let curDocId = StrCast(curDoc.docId);
+            if (curDocId === paramDoc[Id]) {
+                let selectedButtonOfDoc = Cast(curDoc.selectedButtons, listSpec("boolean"), null);
+                if (selectedButtonOfDoc !== undefined) {
+                    return selectedButtonOfDoc;
+                }
+            }
+        }
+
+        return foundSelectedButtons;
+
+    }
+
+    //This is used to add dragging as an event.
+    onPointerEnter = (e: React.PointerEvent): void => {
+        if (e.buttons === 1 && SelectionManager.GetIsDragging()) {
+            let selected = NumCast(this.props.mainDocument.selectedDoc, 0);
+
+            this.header!.className = "presentationView-item";
+
+
+            if (selected === this.props.index) {
+                //this doc is selected
+                this.header!.className = "presentationView-item presentationView-selected";
+            }
+            document.addEventListener("pointermove", this.onDragMove, true);
+        }
+    }
+
+    //This is used to remove the dragging when dropped.
+    onPointerLeave = (e: React.PointerEvent): void => {
+        //to get currently selected presentation doc
+        let selected = NumCast(this.props.mainDocument.selectedDoc, 0);
+
+        this.header!.className = "presentationView-item";
+
+
+        if (selected === this.props.index) {
+            //this doc is selected
+            this.header!.className = "presentationView-item presentationView-selected";
+
+        }
+        document.removeEventListener("pointermove", this.onDragMove, true);
+    }
+
+    /**
+     * This method is passed in to be used when dragging a document.
+     * It makes it possible to show dropping lines on drop targets.
+     */
+    onDragMove = (e: PointerEvent): void => {
+        this.props.document.libraryBrush = false;
+        let x = this.ScreenToLocalListTransform(e.clientX, e.clientY);
+        let rect = this.header!.getBoundingClientRect();
+        let bounds = this.ScreenToLocalListTransform(rect.left, rect.top + rect.height / 2);
+        let before = x[1] < bounds[1];
+        this.header!.className = "presentationView-item";
+        if (before) {
+            this.header!.className += " presentationView-item-above";
+        }
+        else if (!before) {
+            this.header!.className += " presentationView-item-below";
+        }
+        e.stopPropagation();
+    }
+
+    /**
+     * This method is passed in to on down event of presElement, so that drag and
+     * drop can be completed with DragManager functionality.
+     */
+    @action
+    move: DragManager.MoveFunction = (doc: Doc, target: Doc, addDoc) => {
+        return this.props.document !== target && this.props.removeDocByRef(doc) && addDoc(doc);
+    }
+
+    /**
+     * Helper method that gets called to divide a group array into two different groups
+     * including the targetDoc in first part.
+     * @param targetDoc document that is targeted as slicing point
+     * @param propsGroupArray the array that gets divided into 2
+     * @param droppedDoc the dropped document
+     * @param belowDocGuid presentId of the belowGroup
+     */
+    private halveGroupArray(targetDoc: Doc, propsGroupArray: Doc[], droppedDoc: Doc, belowDocGuid: string) {
+        let targetIndex = propsGroupArray.indexOf(targetDoc);
+        let firstPart = propsGroupArray.slice(0, targetIndex + 1);
+        let firstPartNewGuid = Utils.GenerateGuid();
+        firstPart.forEach((doc: Doc) => doc.presentId = firstPartNewGuid);
+        let secondPart = propsGroupArray.slice(targetIndex + 1);
+        secondPart.unshift(droppedDoc);
+        droppedDoc.presentId = belowDocGuid;
+        this.props.groupMappings.set(firstPartNewGuid, firstPart);
+        this.props.groupMappings.set(belowDocGuid, secondPart);
+    }
+
+    /**
+     * Helper method that creates a new group, pushing above document first,
+     * and dropped document second.
+     * @param aboveDoc the document above dropped document
+     * @param droppedDoc the dropped document itself
+     * @param aboveDocGuid above document's presentId
+     */
+    private createNewGroup(aboveDoc: Doc, droppedDoc: Doc, aboveDocGuid: string) {
+        let newGroup: Doc[] = [];
+        newGroup.push(aboveDoc);
+        newGroup.push(droppedDoc);
+        droppedDoc.presentId = aboveDocGuid;
+        this.props.groupMappings.set(aboveDocGuid, newGroup);
+    }
+
+    /**
+      * Helper method that finds the above document's group, and pushes the
+      * dropped document into that group, protecting the visual order of the
+      * presentation elements.
+      * @param aboveDoc the document above dropped document
+      * @param droppedDoc the dropped document itself
+      * @param aboveDocGuid above document's presentId
+      */
+    private protectOrderAndPush(aboveDocGuid: string, aboveDoc: Doc, droppedDoc: Doc) {
+        let groupArray = this.props.groupMappings.get(aboveDocGuid)!;
+        let tempStack: Doc[] = [];
+        while (groupArray[groupArray.length - 1] !== aboveDoc) {
+            tempStack.push(groupArray.pop()!);
+        }
+        groupArray.push(droppedDoc);
+        droppedDoc.presentId = aboveDocGuid;
+        while (tempStack.length !== 0) {
+            groupArray.push(tempStack.pop()!);
+        }
+    }
+    /**
+     * This function is a getter to get if a document is in previewMode.
+     */
+    private get embedInline() {
+        return BoolCast(this.props.document.embedOpen);
+    }
+
+    /**
+     * This function sets document in presentation preview mode as the given value.
+     */
+    private set embedInline(value: boolean) {
+        this.props.document.embedOpen = value;
+    }
+
+    /**
+     * The function that recreates that context menu of presentation elements.
+     */
+    onContextMenu = (e: React.MouseEvent<HTMLDivElement>) => {
+        e.preventDefault();
+        e.stopPropagation();
+        ContextMenu.Instance.addItem({ description: this.embedInline ? "Collapse Inline" : "Expand Inline", event: () => this.embedInline = !this.embedInline, icon: "expand" });
+        ContextMenu.Instance.displayMenu(e.clientX, e.clientY);
+    }
+
+    /**
+     * The function that is responsible for rendering the a preview or not for this
+     * presentation element.
+     */
+    renderEmbeddedInline = () => {
+        if (!this.embedInline) {
+            return (null);
+        }
+
+        let propDocWidth = NumCast(this.props.document.nativeWidth);
+        let propDocHeight = NumCast(this.props.document.nativeHeight);
+        let scale = () => {
+            let newScale = 175 / NumCast(this.props.document.nativeWidth, 175);
+            return newScale;
+        };
+        return (
+            <div style={{
+                position: "relative",
+                height: propDocHeight === 0 ? 100 : propDocHeight * scale(),
+                width: propDocWidth === 0 ? "auto" : propDocWidth * scale(),
+                marginTop: 15
+
+            }}>
+                <DocumentView
+                    fitToBox={StrCast(this.props.document.type).indexOf(DocumentType.COL) !== -1}
+                    Document={this.props.document}
+                    addDocument={returnFalse}
+                    removeDocument={returnFalse}
+                    ScreenToLocalTransform={Transform.Identity}
+                    addDocTab={returnFalse}
+                    renderDepth={1}
+                    PanelWidth={() => 350}
+                    PanelHeight={() => 90}
+                    focus={emptyFunction}
+                    backgroundColor={returnEmptyString}
+                    selectOnLoad={false}
+                    parentActive={returnFalse}
+                    whenActiveChanged={returnFalse}
+                    bringToFront={emptyFunction}
+                    zoomToScale={emptyFunction}
+                    getScale={returnOne}
+                    ContainingCollectionView={undefined}
+                    ContentScaling={scale}
+                />
+                <div style={{
+                    width: " 100%",
+                    height: " 100%",
+                    position: "absolute",
+                    left: 0,
+                    top: 0,
+                    background: "transparent",
+                    zIndex: 2,
+
+                }}></div>
+            </div>
+        );
+    }
 
     render() {
         let p = this.props;
@@ -364,16 +874,18 @@ export default class PresentationElement extends React.Component<PresentationEle
         //to get currently selected presentation doc
         let selected = NumCast(p.mainDocument.selectedDoc, 0);
 
-        let className = "presentationView-item";
+        let className = " presentationView-item";
         if (selected === p.index) {
             //this doc is selected
             className += " presentationView-selected";
         }
-        let onEnter = (e: React.PointerEvent) => { p.document.libraryBrush = true; };
-        let onLeave = (e: React.PointerEvent) => { p.document.libraryBrush = undefined; };
+        let dropAction = StrCast(this.props.document.dropAction) as dropActionType;
+        let onItemDown = SetupDrag(this.presElRef, () => p.document, this.move, dropAction, this.props.mainDocument[Id], true);
         return (
-            <div className={className} key={p.document[Id] + p.index}
-                onPointerEnter={onEnter} onPointerLeave={onLeave}
+            <div className={className} onContextMenu={this.onContextMenu} key={p.document[Id] + p.index}
+                ref={this.presElRef}
+                onPointerEnter={this.onPointerEnter} onPointerLeave={this.onPointerLeave}
+                onPointerDown={onItemDown}
                 style={{
                     outlineColor: "maroon",
                     outlineStyle: "dashed",
@@ -383,19 +895,22 @@ export default class PresentationElement extends React.Component<PresentationEle
                 <strong className="presentationView-name">
                     {`${p.index + 1}. ${title}`}
                 </strong>
-                <button className="presentation-icon" onClick={e => { this.props.deleteDocument(p.index); e.stopPropagation(); }}>X</button>
+                <button className="presentation-icon" onPointerDown={(e) => e.stopPropagation()} onClick={e => { this.props.deleteDocument(p.index); e.stopPropagation(); }}>X</button>
                 <br></br>
-                <button title="Zoom" className={this.selectedButtons[buttonIndex.Show] ? "presentation-interaction-selected" : "presentation-interaction"} onClick={this.onZoomDocumentClick}><FontAwesomeIcon icon={"search"} /></button>
-                <button title="Navigate" className={this.selectedButtons[buttonIndex.Navigate] ? "presentation-interaction-selected" : "presentation-interaction"} onClick={this.onNavigateDocumentClick}><FontAwesomeIcon icon={"location-arrow"} /></button>
-                <button title="Hide Document Till Presented" className={this.selectedButtons[buttonIndex.HideTillPressed] ? "presentation-interaction-selected" : "presentation-interaction"} onClick={this.onHideDocumentUntilPressClick}><FontAwesomeIcon icon={fileSolid} /></button>
-                <button title="Fade Document After Presented" className={this.selectedButtons[buttonIndex.FadeAfter] ? "presentation-interaction-selected" : "presentation-interaction"} onClick={this.onFadeDocumentAfterPresentedClick}><FontAwesomeIcon icon={faFileDownload} color={"gray"} /></button>
-                <button title="Hide Document After Presented" className={this.selectedButtons[buttonIndex.HideAfter] ? "presentation-interaction-selected" : "presentation-interaction"} onClick={this.onHideDocumentAfterPresentedClick}><FontAwesomeIcon icon={faFileDownload} /></button>
-                <button title="Group With Up" className={this.selectedButtons[buttonIndex.Group] ? "presentation-interaction-selected" : "presentation-interaction"} onClick={(e) => {
+                <button title="Zoom" className={this.selectedButtons[buttonIndex.Show] ? "presentation-interaction-selected" : "presentation-interaction"} onPointerDown={(e) => e.stopPropagation()} onClick={this.onZoomDocumentClick}><FontAwesomeIcon icon={"search"} /></button>
+                <button title="Navigate" className={this.selectedButtons[buttonIndex.Navigate] ? "presentation-interaction-selected" : "presentation-interaction"} onPointerDown={(e) => e.stopPropagation()} onClick={this.onNavigateDocumentClick}><FontAwesomeIcon icon={"location-arrow"} /></button>
+                <button title="Hide Document Till Presented" className={this.selectedButtons[buttonIndex.HideTillPressed] ? "presentation-interaction-selected" : "presentation-interaction"} onPointerDown={(e) => e.stopPropagation()} onClick={this.onHideDocumentUntilPressClick}><FontAwesomeIcon icon={fileSolid} /></button>
+                <button title="Fade Document After Presented" className={this.selectedButtons[buttonIndex.FadeAfter] ? "presentation-interaction-selected" : "presentation-interaction"} onPointerDown={(e) => e.stopPropagation()} onClick={this.onFadeDocumentAfterPresentedClick}><FontAwesomeIcon icon={faFileDownload} color={"gray"} /></button>
+                <button title="Hide Document After Presented" className={this.selectedButtons[buttonIndex.HideAfter] ? "presentation-interaction-selected" : "presentation-interaction"} onPointerDown={(e) => e.stopPropagation()} onClick={this.onHideDocumentAfterPresentedClick}><FontAwesomeIcon icon={faFileDownload} /></button>
+                <button title="Group With Up" className={this.selectedButtons[buttonIndex.Group] ? "presentation-interaction-selected" : "presentation-interaction"} onPointerDown={(e) => e.stopPropagation()} onClick={(e) => {
                     e.stopPropagation();
                     this.changeGroupStatus();
                     this.onGroupClick(p.document, p.index, this.selectedButtons[buttonIndex.Group]);
                 }}> <FontAwesomeIcon icon={"arrow-up"} /> </button>
+                <button title="Open Right" className={this.selectedButtons[buttonIndex.OpenRight] ? "presentation-interaction-selected" : "presentation-interaction"} onPointerDown={(e) => e.stopPropagation()} onClick={this.onRightTabClick}><FontAwesomeIcon icon={"arrow-right"} /></button>
 
+                <br />
+                {this.renderEmbeddedInline()}
             </div>
         );
     }
diff --git a/src/client/views/presentationview/PresentationList.tsx b/src/client/views/presentationview/PresentationList.tsx
index 7abd3e366..e853c4070 100644
--- a/src/client/views/presentationview/PresentationList.tsx
+++ b/src/client/views/presentationview/PresentationList.tsx
@@ -7,6 +7,7 @@ import { Doc, DocListCast, DocListCastAsync } from "../../../new_fields/Doc";
 import { NumCast, StrCast } from "../../../new_fields/Types";
 import { Id } from "../../../new_fields/FieldSymbols";
 import PresentationElement, { buttonIndex } from "./PresentationElement";
+import "../../../new_fields/Doc";
 
 
 
@@ -16,11 +17,14 @@ interface PresListProps {
     deleteDocument(index: number): void;
     gotoDocument(index: number, fromDoc: number): Promise<void>;
     groupMappings: Map<String, Doc[]>;
-    presElementsMappings: Map<Doc, PresentationElement>;
+    PresElementsMappings: Map<Doc, PresentationElement>;
     setChildrenDocs: (docList: Doc[]) => void;
     presStatus: boolean;
     presButtonBackUp: Doc;
     presGroupBackUp: Doc;
+    removeDocByRef(doc: Doc): boolean;
+    clearElemMap(): void;
+
 }
 
 
@@ -79,25 +83,31 @@ export default class PresentationViewList extends React.Component<PresListProps>
         this.initializeGroupIds(children);
         this.initializeScaleViews(children);
         this.props.setChildrenDocs(children);
+        this.props.clearElemMap();
         return (
-
-            <div className="presentationView-listCont">
-                {children.map((doc: Doc, index: number) => 
-                              <PresentationElement
-                                  ref={(e) => { if (e) { this.props.presElementsMappings.set(doc, e); } }}
-                                  key={doc[Id]}
-                                  mainDocument={this.props.mainDocument}
-                                  document={doc}
-                                  index={index}
-                                  deleteDocument={this.props.deleteDocument}
-                                  gotoDocument={this.props.gotoDocument}
-                                  groupMappings={this.props.groupMappings}
-                                  allListElements={children}
-                                  presStatus={this.props.presStatus}
-                                  presButtonBackUp={this.props.presButtonBackUp}
-                                  presGroupBackUp={this.props.presGroupBackUp}
-                              />
-                 )}
+            <div className="presentationView-listCont" >
+                {children.map((doc: Doc, index: number) =>
+                    <PresentationElement
+                        ref={(e) => {
+                            if (e && e !== null) {
+                                this.props.PresElementsMappings.set(doc, e);
+                            }
+                        }}
+                        key={doc[Id]}
+                        mainDocument={this.props.mainDocument}
+                        document={doc}
+                        index={index}
+                        deleteDocument={this.props.deleteDocument}
+                        gotoDocument={this.props.gotoDocument}
+                        groupMappings={this.props.groupMappings}
+                        allListElements={children}
+                        presStatus={this.props.presStatus}
+                        presButtonBackUp={this.props.presButtonBackUp}
+                        presGroupBackUp={this.props.presGroupBackUp}
+                        removeDocByRef={this.props.removeDocByRef}
+                        PresElementsMappings={this.props.PresElementsMappings}
+                    />
+                )}
             </div>
         );
     }
diff --git a/src/client/views/presentationview/PresentationModeMenu.scss b/src/client/views/presentationview/PresentationModeMenu.scss
new file mode 100644
index 000000000..336f43d20
--- /dev/null
+++ b/src/client/views/presentationview/PresentationModeMenu.scss
@@ -0,0 +1,30 @@
+.presMenu-cont {
+    position: fixed;
+    z-index: 10000;
+    height: 35px;
+    background: #323232;
+    box-shadow: 3px 3px 3px rgba(0, 0, 0, 0.25);
+    border-radius: 0px 6px 6px 6px;
+    overflow: hidden;
+    display: flex;
+
+    .presMenu-button {
+        background-color: transparent;
+        width: 35px;
+        height: 35px;
+    }
+
+    .presMenu-button:hover {
+        background-color: #121212;
+    }
+
+    .presMenu-dragger {
+        height: 100%;
+        transition: width .2s;
+        background-image: url("https://logodix.com/logo/1020374.png");
+        background-size: 90% 100%;
+        background-repeat: no-repeat;
+        background-position: left center;
+    }
+
+}
\ No newline at end of file
diff --git a/src/client/views/presentationview/PresentationModeMenu.tsx b/src/client/views/presentationview/PresentationModeMenu.tsx
new file mode 100644
index 000000000..4de8da587
--- /dev/null
+++ b/src/client/views/presentationview/PresentationModeMenu.tsx
@@ -0,0 +1,100 @@
+import React = require("react");
+import { observable, action, runInAction } from "mobx";
+import "./PresentationModeMenu.scss";
+import { observer } from "mobx-react";
+import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
+
+
+export interface PresModeMenuProps {
+    next: () => void;
+    back: () => void;
+    presStatus: boolean;
+    startOrResetPres: () => void;
+    closePresMode: () => void;
+}
+
+/**
+ * This class is responsible for modeling of the Presentation Mode Menu. The menu allows
+ * user to navigate through presentation elements, and start/stop the presentation.
+ */
+@observer
+export default class PresModeMenu extends React.Component<PresModeMenuProps> {
+
+    @observable private _top: number = 20;
+    @observable private _right: number = 0;
+    @observable private _opacity: number = 1;
+    @observable private _transition: string = "opacity 0.5s";
+    @observable private _transitionDelay: string = "";
+
+
+    private _mainCont: React.RefObject<HTMLDivElement> = React.createRef();
+
+    /**
+     * The function that changes the coordinates of the menu, depending on the
+     * movement of the mouse when it's being dragged.
+     */
+    @action
+    dragging = (e: PointerEvent) => {
+        this._right -= e.movementX;
+        this._top += e.movementY;
+
+        e.stopPropagation();
+        e.preventDefault();
+    }
+
+    /**
+     * The function that removes the event listeners that are responsible for
+     * dragging of the menu.
+     */
+    dragEnd = (e: PointerEvent) => {
+        document.removeEventListener("pointermove", this.dragging);
+        document.removeEventListener("pointerup", this.dragEnd);
+        e.stopPropagation();
+        e.preventDefault();
+    }
+
+    /**
+     * The function that starts the dragging of the presentation mode menu. When
+     * the lines on further right are clicked on.
+     */
+    dragStart = (e: React.PointerEvent) => {
+        document.removeEventListener("pointermove", this.dragging);
+        document.addEventListener("pointermove", this.dragging);
+        document.removeEventListener("pointerup", this.dragEnd);
+        document.addEventListener("pointerup", this.dragEnd);
+
+        e.stopPropagation();
+        e.preventDefault();
+    }
+
+    /**
+     * The function that is responsible for rendering the play or pause button, depending on the
+     * status of the presentation.
+     */
+    renderPlayPauseButton = () => {
+        if (this.props.presStatus) {
+            return <button title="Reset Presentation" className="presMenu-button" onClick={this.props.startOrResetPres}><FontAwesomeIcon icon="stop" /></button>;
+        } else {
+            return <button title="Start Presentation From Start" className="presMenu-button" onClick={this.props.startOrResetPres}><FontAwesomeIcon icon="play" /></button>;
+        }
+    }
+
+    render() {
+        return (
+            <div className="presMenu-cont" ref={this._mainCont}
+                style={{ right: this._right, top: this._top, opacity: this._opacity, transition: this._transition, transitionDelay: this._transitionDelay }}>
+                <button title="Back" className="presMenu-button" onClick={this.props.back}><FontAwesomeIcon icon={"arrow-left"} /></button>
+                {this.renderPlayPauseButton()}
+                <button title="Next" className="presMenu-button" onClick={this.props.next}><FontAwesomeIcon icon={"arrow-right"} /></button>
+                <button className="presMenu-button" title="Close Presentation Menu" onClick={this.props.closePresMode}>
+                    <FontAwesomeIcon icon="times" size="lg" />
+                </button>
+                <div className="presMenu-dragger" onPointerDown={this.dragStart} style={{ width: "20px" }} />
+            </div >
+        );
+    }
+
+
+
+
+}
\ No newline at end of file
diff --git a/src/client/views/presentationview/PresentationView.scss b/src/client/views/presentationview/PresentationView.scss
index a35a5849b..65b09c833 100644
--- a/src/client/views/presentationview/PresentationView.scss
+++ b/src/client/views/presentationview/PresentationView.scss
@@ -1,11 +1,13 @@
 .presentationView-cont {
     position: absolute;
     background: white;
-    z-index: 1;
+    z-index: 2;
     box-shadow: #AAAAAA .2vw .2vw .4vw;
     right: 0;
     top: 0;
     bottom: 0;
+    letter-spacing: 2px;
+    
 }
 
 .presentationView-item {
@@ -19,6 +21,23 @@
     -ms-user-select: none;
     user-select: none;
     transition: all .1s;
+
+    
+
+    .documentView-node {
+        
+        position: absolute;
+        z-index: 1;
+    }
+
+}
+
+.presentationView-item-above {
+    border-top: black 2px solid;
+}
+
+.presentationView-item-below {
+    border-bottom: black 2px solid;
 }
 
 .presentationView-listCont {
@@ -33,10 +52,11 @@
 
 .presentationView-selected {
     background: gray;
+    color: black;
 }
 
 .presentationView-heading {
-    background: lightseagreen;
+    background: gray;
     padding: 10px;
     display: inline-block;
     width: 100%;
@@ -47,7 +67,9 @@
     padding-bottom: 3px;
     font-size: 25px;
     display: inline-block;
-    width: calc(100% - 160px);
+    width: calc(100% - 200px);
+    letter-spacing: 2px;
+
 }
 
 .presentation-icon {
diff --git a/src/client/views/presentationview/PresentationView.tsx b/src/client/views/presentationview/PresentationView.tsx
index edbbeb8f9..bea70f00b 100644
--- a/src/client/views/presentationview/PresentationView.tsx
+++ b/src/client/views/presentationview/PresentationView.tsx
@@ -1,10 +1,10 @@
 import { observer } from "mobx-react";
 import React = require("react");
-import { observable, action, runInAction, reaction } from "mobx";
+import { observable, action, runInAction, reaction, autorun } from "mobx";
 import "./PresentationView.scss";
 import { DocumentManager } from "../../util/DocumentManager";
 import { Utils } from "../../../Utils";
-import { Doc, DocListCast, DocListCastAsync } from "../../../new_fields/Doc";
+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";
@@ -12,10 +12,12 @@ 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 } from '@fortawesome/free-solid-svg-icons';
+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);
@@ -25,12 +27,16 @@ 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;
@@ -60,6 +66,12 @@ export class PresentationView extends React.Component<PresViewProps>  {
     //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) {
@@ -67,8 +79,18 @@ export class PresentationView extends React.Component<PresViewProps>  {
         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.
@@ -156,7 +178,7 @@ export class PresentationView extends React.Component<PresViewProps>  {
 
 
         //storing the presentation status,ie. whether it was stopped or playing
-        let presStatusBackUp = BoolCast(this.curPresentation.presStatus, null);
+        let presStatusBackUp = BoolCast(this.curPresentation.presStatus);
         runInAction(() => this.presStatus = presStatusBackUp);
     }
 
@@ -231,6 +253,7 @@ export class PresentationView extends React.Component<PresViewProps>  {
 
             //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;
@@ -345,11 +368,16 @@ export class PresentationView extends React.Component<PresViewProps>  {
             //checking if curDoc has navigation open
             let curDocButtons = this.presElementsMappings.get(curDoc)!.selected;
             if (curDocButtons[buttonIndex.Navigate]) {
-                DocumentManager.Instance.jumpToDocument(curDoc, false);
+                this.jumpToTabOrRight(curDocButtons, curDoc);
             } else if (curDocButtons[buttonIndex.Show]) {
                 let curScale = DocumentManager.Instance.getScaleOfDocView(this.childrenDocs[fromDoc]);
-                //awaiting jump so that new scale can be found, since jumping is async
-                await DocumentManager.Instance.jumpToDocument(curDoc, true);
+                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;
 
@@ -362,9 +390,15 @@ export class PresentationView extends React.Component<PresViewProps>  {
             return;
         }
         let curScale = DocumentManager.Instance.getScaleOfDocView(this.childrenDocs[fromDoc]);
+        let curDocButtons = this.presElementsMappings.get(docToJump)!.selected;
+
 
-        //awaiting jump so that new scale can be found, since jumping is async
-        await DocumentManager.Instance.jumpToDocument(docToJump, willZoom);
+        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
@@ -375,6 +409,18 @@ export class PresentationView extends React.Component<PresViewProps>  {
     }
 
     /**
+     * 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) => {
@@ -418,10 +464,18 @@ export class PresentationView extends React.Component<PresViewProps>  {
                 }
             }
 
-            //removing it from the backUp of selected Buttons
+
             let castedList = Cast(this.presButtonBackUp.selectedButtonDocs, listSpec(Doc));
             if (castedList) {
-                castedList.splice(index, 1);
+                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
@@ -447,6 +501,22 @@ export class PresentationView extends React.Component<PresViewProps>  {
         }
     }
 
+    /**
+     * 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
@@ -505,7 +575,7 @@ export class PresentationView extends React.Component<PresViewProps>  {
             this.curPresentation.data = new List([doc]);
         }
 
-        this.curPresentation.width = 400;
+        this.toggle(true);
     }
 
     //Function that sets the store of the children docs.
@@ -526,18 +596,40 @@ export class PresentationView extends React.Component<PresViewProps>  {
 
     //The function that starts or resets presentaton functionally, depending on status flag.
     @action
-    startOrResetPres = () => {
+    startOrResetPres = async () => {
         if (this.presStatus) {
             this.resetPresentation();
         } else {
             this.presStatus = true;
-            this.startPresentation(0);
+            let startIndex = await this.findStartDocument();
+            this.startPresentation(startIndex);
             const current = NumCast(this.curPresentation.selectedDoc);
-            this.gotoDocument(0, current);
+            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
@@ -752,42 +844,150 @@ export class PresentationView extends React.Component<PresViewProps>  {
         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 className="presentationView-cont" style={{ width: width, overflow: "hidden" }}>
-                <div className="presentationView-heading">
-                    {this.renderSelectOrPresSelection()}
-                    <button title="Close Presentation" className='presentation-icon' onClick={this.closePresentation}><FontAwesomeIcon icon={"times"} /></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="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="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 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>
-                <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}
-                />
+                {this.renderPresMode()}
+
             </div>
         );
     }