1 files changed, 80 insertions, 2 deletions

diff --git a/src/client/views/DocComponent.tsx b/src/client/views/DocComponent.tsx
index d6562492f..ff149a9ac 100644
--- a/src/client/views/DocComponent.tsx
+++ b/src/client/views/DocComponent.tsx
@@ -1,14 +1,92 @@
 import * as React from 'react';
 import { Doc } from '../../new_fields/Doc';
-import { computed } from 'mobx';
+import { computed, action } from 'mobx';
+import { Cast, BoolCast } from '../../new_fields/Types';
+import { listSpec } from '../../new_fields/Schema';
+import { InkingControl } from './InkingControl';
+import { InkTool } from '../../new_fields/InkField';
 
-export function DocComponent<P extends { Document: Doc }, T>(schemaCtor: (doc: Doc) => T) {
+
+///  DocComponents returns a generic base class for React views of document fields that are not interactive
+interface DocComponentProps {
+    Document: Doc;
+}
+export function DocComponent<P extends DocComponentProps, T>(schemaCtor: (doc: Doc) => T) {
+    class Component extends React.Component<P> {
+        //TODO This might be pretty inefficient if doc isn't observed, because computed doesn't cache then
+        @computed
+        get Document(): T {
+            return schemaCtor(this.props.Document);
+        }
+    }
+    return Component;
+}
+
+
+///  DocStaticProps return a base class for React views of document fields that are interactive only when selected (e.g. ColorBox)
+interface DocStaticProps {
+    Document: Doc;
+    isSelected: () => boolean;
+    renderDepth: number;
+}
+export function DocStaticComponent<P extends DocStaticProps, T>(schemaCtor: (doc: Doc) => T) {
+    class Component extends React.Component<P> {
+        //TODO This might be pretty inefficient if doc isn't observed, because computed doesn't cache then
+        @computed
+        get Document(): T {
+            return schemaCtor(this.props.Document);
+        }
+        active = () => !this.props.Document.isBackground && (this.props.Document.forceActive || this.props.isSelected() || this.props.renderDepth === 0);//  && !InkingControl.Instance.selectedTool;  // bcz: inking state shouldn't affect static tools 
+    }
+    return Component;
+}
+
+
+///  DocAnnotatbleComponent return a base class for React views of document fields that are annotatable *and* interactive when selected (e.g., pdf, image)
+interface DocAnnotatableProps {
+    Document: Doc;
+    DataDoc?: Doc;
+    fieldKey: string;
+    fieldExt: string;
+    whenActiveChanged: (isActive: boolean) => void;
+    isSelected: () => boolean;
+    renderDepth: number;
+}
+export function DocAnnotatableComponent<P extends DocAnnotatableProps, T>(schemaCtor: (doc: Doc) => T) {
     class Component extends React.Component<P> {
         //TODO This might be pretty inefficient if doc isn't observed, because computed doesn't cache then
         @computed
         get Document(): T {
             return schemaCtor(this.props.Document);
         }
+        _isChildActive = false;
+        @action.bound
+        removeDocument(doc: Doc): boolean {
+            Doc.GetProto(doc).annotationOn = undefined;
+            let value = Cast(this.extensionDoc[this.props.fieldExt], listSpec(Doc), []);
+            let index = value ? Doc.IndexOf(doc, value.map(d => d as Doc), true) : -1;
+            return index !== -1 && value.splice(index, 1) ? true : false;
+        }
+
+        @computed get dataDoc() { return (this.props.DataDoc && this.props.Document.isTemplateField ? this.props.DataDoc : Doc.GetProto(this.props.Document)) as Doc; }
+
+        @computed get extensionDoc() { return Doc.fieldExtensionDoc(this.dataDoc, this.props.fieldKey); }
+
+        // if the moved document is already in this overlay collection nothing needs to be done.
+        // otherwise, if the document can be removed from where it was, it will then be added to this document's overlay collection. 
+        @action.bound
+        moveDocument(doc: Doc, targetCollection: Doc, addDocument: (doc: Doc) => boolean): boolean {
+            return Doc.AreProtosEqual(this.props.Document, targetCollection) ? true : this.removeDocument(doc) ? addDocument(doc) : false;
+        }
+
+        @action.bound
+        addDocument(doc: Doc): boolean {
+            Doc.GetProto(doc).annotationOn = this.props.Document;
+            return Doc.AddDocToList(this.extensionDoc, this.props.fieldExt, doc);
+        }
+        whenActiveChanged = (isActive: boolean) => this.props.whenActiveChanged(this._isChildActive = isActive);
+        active = () => ((InkingControl.Instance.selectedTool === InkTool.None && !this.props.Document.isBackground) &&
+            (this.props.Document.forceActive || this.props.isSelected() || this._isChildActive || this.props.renderDepth === 0) ? true : false)
     }
     return Component;
 }
\ No newline at end of file