From 3556aae6d063d8b654509330e70bc67606f16613 Mon Sep 17 00:00:00 2001
From: Tyler Schicke <tyler_schicke@brown.edu>
Date: Sun, 21 Apr 2019 00:39:09 -0400
Subject: More changes

---
 .../views/collections/CollectionDockingView.tsx    | 38 +++++++++----------
 .../views/nodes/CollectionFreeFormDocumentView.tsx | 43 +++++++++++++---------
 src/new_fields/Doc.ts                              |  9 ++---
 src/new_fields/Proxy.ts                            |  2 +-
 src/new_fields/Types.ts                            | 22 ++++++++---
 5 files changed, 65 insertions(+), 49 deletions(-)

(limited to 'src')

diff --git a/src/client/views/collections/CollectionDockingView.tsx b/src/client/views/collections/CollectionDockingView.tsx
index b6c87231f..7b204cbdc 100644
--- a/src/client/views/collections/CollectionDockingView.tsx
+++ b/src/client/views/collections/CollectionDockingView.tsx
@@ -250,28 +250,26 @@ export class CollectionDockingView extends React.Component<SubCollectionViewProp
 
     tabCreated = (tab: any) => {
         if (tab.hasOwnProperty("contentItem") && tab.contentItem.config.type !== "stack") {
-            Server.GetField(tab.contentItem.config.props.documentId, action((f: Opt<Field>) => {
-                if (f !== undefined && f instanceof Document) {
-                    f.GetTAsync(KeyStore.Title, TextField, (tfield) => {
-                        if (tfield !== undefined) {
-                            tab.titleElement[0].textContent = f.Title;
-                        }
-                    });
-                    f.GetTAsync(KeyStore.LinkedFromDocs, ListField).then(lf =>
-                        f.GetTAsync(KeyStore.LinkedToDocs, ListField).then(lt => {
-                            let count = (lf ? lf.Data.length : 0) + (lt ? lt.Data.length : 0);
-                            let counter: any = this.htmlToElement(`<div class="messageCounter">${count}</div>`);
-                            tab.element.append(counter);
-                            counter.DashDocId = tab.contentItem.config.props.documentId;
-                            tab.reactionDisposer = reaction((): [List<Field> | null | undefined, List<Field> | null | undefined] => [Cast(f.linkedFromDocs, List), Cast(f.linkedToDocs, List)],
-                                ([linkedFrom, linkedTo]) => {
-                                    let count = (linkedFrom ? linkedFrom.length : 0) + (linkedTo ? linkedTo.length : 0);
-                                    counter.innerHTML = count;
-                                });
-                        }));
+            DocServer.GetRefField(tab.contentItem.config.props.documentId).then(async f => {
+                if (f instanceof Doc) {
+                    const tfield = await Cast(f.title, "string");
+                    if (tfield !== undefined) {
+                        tab.titleElement[0].textContent = f.Title;
+                    }
+                    const lf = await Cast(f.linkedFromDocs, List);
+                    const lt = await Cast(f.linkedToDocs, List);
+                    let count = (lf ? lf.length : 0) + (lt ? lt.length : 0);
+                    let counter: any = this.htmlToElement(`<div class="messageCounter">${count}</div>`);
+                    tab.element.append(counter);
+                    counter.DashDocId = tab.contentItem.config.props.documentId;
+                    tab.reactionDisposer = reaction((): [List<Field> | null | undefined, List<Field> | null | undefined] => [lf, lt],
+                        ([linkedFrom, linkedTo]) => {
+                            let count = (linkedFrom ? linkedFrom.length : 0) + (linkedTo ? linkedTo.length : 0);
+                            counter.innerHTML = count;
+                        });
                     tab.titleElement[0].DashDocId = tab.contentItem.config.props.documentId;
                 }
-            }));
+            });
         }
         tab.closeElement.off('click') //unbind the current click handler
             .click(function () {
diff --git a/src/client/views/nodes/CollectionFreeFormDocumentView.tsx b/src/client/views/nodes/CollectionFreeFormDocumentView.tsx
index 1d42b3899..27fd25b5c 100644
--- a/src/client/views/nodes/CollectionFreeFormDocumentView.tsx
+++ b/src/client/views/nodes/CollectionFreeFormDocumentView.tsx
@@ -1,18 +1,27 @@
 import { computed, trace } from "mobx";
 import { observer } from "mobx-react";
-import { KeyStore } from "../../../fields/KeyStore";
-import { NumberField } from "../../../fields/NumberField";
 import { Transform } from "../../util/Transform";
-import { DocumentView, DocumentViewProps } from "./DocumentView";
+import { DocumentView, DocumentViewProps, positionSchema } from "./DocumentView";
 import "./DocumentView.scss";
 import React = require("react");
 import { OmitKeys } from "../../../Utils";
+import { DocComponent } from "../DocComponent";
+import { createSchema, makeInterface } from "../../../new_fields/Schema";
+import { FieldValue } from "../../../new_fields/Types";
 
 export interface CollectionFreeFormDocumentViewProps extends DocumentViewProps {
 }
 
+const schema = createSchema({
+    zoom: "number",
+    zIndex: "number"
+});
+
+type FreeformDocument = makeInterface<[typeof schema, typeof positionSchema]>;
+const FreeformDocument = makeInterface([schema, positionSchema]);
+
 @observer
-export class CollectionFreeFormDocumentView extends React.Component<CollectionFreeFormDocumentViewProps> {
+export class CollectionFreeFormDocumentView extends DocComponent<CollectionFreeFormDocumentViewProps, FreeformDocument>(FreeformDocument) {
     private _mainCont = React.createRef<HTMLDivElement>();
 
     @computed
@@ -20,36 +29,36 @@ export class CollectionFreeFormDocumentView extends React.Component<CollectionFr
         return `scale(${this.props.ContentScaling()}, ${this.props.ContentScaling()}) translate(${this.X}px, ${this.Y}px) scale(${this.zoom}, ${this.zoom}) `;
     }
 
-    @computed get zoom(): number { return 1 / this.props.Document.GetNumber(KeyStore.Zoom, 1); }
-    @computed get zIndex(): number { return this.props.Document.GetNumber(KeyStore.ZIndex, 0); }
-    @computed get width(): number { return this.props.Document.Width(); }
-    @computed get height(): number { return this.props.Document.Height(); }
-    @computed get nativeWidth(): number { return this.props.Document.GetNumber(KeyStore.NativeWidth, 0); }
-    @computed get nativeHeight(): number { return this.props.Document.GetNumber(KeyStore.NativeHeight, 0); }
+    @computed get zoom(): number { return 1 / FieldValue(this.Document.zoom, 1); }
+    @computed get zIndex(): number { return FieldValue(this.Document.zIndex, 0); }
+    @computed get width(): number { return FieldValue(this.Document.width, 0); }
+    @computed get height(): number { return FieldValue(this.Document.height, 0); }
+    @computed get nativeWidth(): number { return FieldValue(this.Document.nativeWidth, 0); }
+    @computed get nativeHeight(): number { return FieldValue(this.Document.nativeHeight, 0); }
 
     set width(w: number) {
-        this.props.Document.SetData(KeyStore.Width, w, NumberField);
+        this.Document.width = w;
         if (this.nativeWidth && this.nativeHeight) {
-            this.props.Document.SetNumber(KeyStore.Height, this.nativeHeight / this.nativeWidth * w);
+            this.Document.height = this.nativeHeight / this.nativeWidth * w;
         }
     }
 
     set height(h: number) {
-        this.props.Document.SetData(KeyStore.Height, h, NumberField);
+        this.Document.height = h;
         if (this.nativeWidth && this.nativeHeight) {
-            this.props.Document.SetNumber(KeyStore.Width, this.nativeWidth / this.nativeHeight * h);
+            this.Document.width = this.nativeWidth / this.nativeHeight * h;
         }
     }
 
     set zIndex(h: number) {
-        this.props.Document.SetData(KeyStore.ZIndex, h, NumberField);
+        this.Document.zIndex = h;
     }
 
     get X() {
-        return this.props.Document.GetNumber(KeyStore.X, 0);
+        return FieldValue(this.Document.x, 0);
     }
     get Y() {
-        return this.props.Document.GetNumber(KeyStore.Y, 0);
+        return FieldValue(this.Document.y, 0);
     }
     getTransform = (): Transform =>
         this.props.ScreenToLocalTransform()
diff --git a/src/new_fields/Doc.ts b/src/new_fields/Doc.ts
index 8cbd8cf38..10e8fe7ec 100644
--- a/src/new_fields/Doc.ts
+++ b/src/new_fields/Doc.ts
@@ -32,9 +32,8 @@ export class ObjectField {
 
 export type Field = number | string | boolean | ObjectField | RefField;
 export type Opt<T> = T | undefined;
-export type FieldWaiting = null;
-export const FieldWaiting: FieldWaiting = null;
-export type FieldValue<T extends Field = Field> = Opt<T> | FieldWaiting;
+export type FieldWaiting<T extends Field = Field> = Promise<T | undefined>;
+export type FieldValue<T extends Field = Field> = Opt<T> | FieldWaiting<T>;
 
 export const Self = Symbol("Self");
 
@@ -58,7 +57,7 @@ export class Doc extends RefField {
 
     @serializable(alias("fields", map(autoObject())))
     @observable
-    private __fields: { [key: string]: Field | null | undefined } = {};
+    private __fields: { [key: string]: Field | FieldWaiting | undefined } = {};
 
     private [Update] = (diff: any) => {
         DocServer.UpdateField(this[Id], diff);
@@ -78,7 +77,7 @@ export namespace Doc {
             return Cast(field, ctor);
         });
     }
-    export function Get(doc: Doc, key: string, ignoreProto: boolean = false): Field | null | undefined {
+    export function Get(doc: Doc, key: string, ignoreProto: boolean = false): FieldValue {
         const self = doc[Self];
         return getField(self, key, ignoreProto);
     }
diff --git a/src/new_fields/Proxy.ts b/src/new_fields/Proxy.ts
index 6a78388c1..2aa78731e 100644
--- a/src/new_fields/Proxy.ts
+++ b/src/new_fields/Proxy.ts
@@ -50,6 +50,6 @@ export class ProxyField<T extends RefField> extends ObjectField {
             }));
         }
         callback && this.promise.then(callback);
-        return null;
+        return this.promise;
     }
 }
diff --git a/src/new_fields/Types.ts b/src/new_fields/Types.ts
index 0fbd8984c..0392dc2fb 100644
--- a/src/new_fields/Types.ts
+++ b/src/new_fields/Types.ts
@@ -1,4 +1,4 @@
-import { Field, Opt } from "./Doc";
+import { Field, Opt, FieldWaiting, FieldValue } from "./Doc";
 import { List } from "./List";
 
 export type ToType<T> =
@@ -6,7 +6,7 @@ export type ToType<T> =
     T extends "number" ? number :
     T extends "boolean" ? boolean :
     T extends ListSpec<infer U> ? List<U> :
-    T extends { new(...args: any[]): infer R } ? R : never;
+    T extends { new(...args: any[]): infer R } ? (R | Promise<R>) : never;
 
 export type ToConstructor<T> =
     T extends string ? "string" :
@@ -35,10 +35,13 @@ export interface Interface {
 
 export type FieldCtor<T extends Field> = T extends List<infer R> ? ListSpec<R> : ToConstructor<T>;
 
-export function Cast<T extends FieldCtor<Field>>(field: Field | null | undefined, ctor: T): ToType<T> | null | undefined;
-export function Cast<T extends FieldCtor<Field>>(field: Field | null | undefined, ctor: T, defaultVal: ToType<T>): ToType<T>;
-export function Cast<T extends FieldCtor<Field>>(field: Field | null | undefined, ctor: T, defaultVal?: ToType<T>): ToType<T> | null | undefined {
-    if (field !== undefined && field !== null) {
+export function Cast<T extends FieldCtor<Field>>(field: Field | FieldWaiting | undefined, ctor: T): FieldValue<ToType<T>>;
+export function Cast<T extends FieldCtor<Field>>(field: Field | FieldWaiting | undefined, ctor: T, defaultVal: ToType<T>): ToType<T>;
+export function Cast<T extends FieldCtor<Field>>(field: Field | FieldWaiting | undefined, ctor: T, defaultVal?: ToType<T>): FieldValue<ToType<T>> | undefined {
+    if (field instanceof Promise) {
+        return defaultVal === undefined ? field.then(f => Cast(f, ctor) as any) : defaultVal;
+    }
+    if (field !== undefined && !(field instanceof Promise)) {
         if (typeof ctor === "string") {
             if (typeof field === ctor) {
                 return field as ToType<T>;
@@ -59,3 +62,10 @@ export function FieldValue<T extends Field>(field: Opt<T> | Promise<Opt<T>>): Op
 export function FieldValue<T extends Field>(field: Opt<T> | Promise<Opt<T>>, defaultValue?: T): Opt<T> {
     return field instanceof Promise ? defaultValue : field;
 }
+
+export interface PromiseLike<T> {
+    then(callback: (field: Opt<T> | PromiseLike<T>) => void): void;
+}
+export function PromiseValue<T extends Field>(field: FieldValue<T>): PromiseLike<Opt<T>> {
+    return field instanceof Promise ? field : { then(cb: ((field: Opt<T>) => void)) { return cb(field); } };
+}
\ No newline at end of file
-- 
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