From b69106994f5450e2ac2c515f28dacceb2e13b78b Mon Sep 17 00:00:00 2001
From: Bob Zeleznik <zzzman@gmail.com>
Date: Wed, 25 Sep 2019 00:16:55 -0400
Subject: refactored collection view to be cleaner and more modular for
 supporting things like PivotView. fixed pivot view selection bug.

---
 .../CollectionFreeFormLayoutEngines.tsx            | 119 +++++++++++++++++++++
 1 file changed, 119 insertions(+)
 create mode 100644 src/client/views/collections/collectionFreeForm/CollectionFreeFormLayoutEngines.tsx

(limited to 'src/client/views/collections/collectionFreeForm/CollectionFreeFormLayoutEngines.tsx')

diff --git a/src/client/views/collections/collectionFreeForm/CollectionFreeFormLayoutEngines.tsx b/src/client/views/collections/collectionFreeForm/CollectionFreeFormLayoutEngines.tsx
new file mode 100644
index 000000000..21855b168
--- /dev/null
+++ b/src/client/views/collections/collectionFreeForm/CollectionFreeFormLayoutEngines.tsx
@@ -0,0 +1,119 @@
+import { Doc, Field, FieldResult } from "../../../../new_fields/Doc";
+import { NumCast, StrCast, Cast } from "../../../../new_fields/Types";
+import { ScriptBox } from "../../ScriptBox";
+import { CompileScript } from "../../../util/Scripting";
+import { ScriptField } from "../../../../new_fields/ScriptField";
+import { OverlayView, OverlayElementOptions } from "../../OverlayView";
+import { emptyFunction } from "../../../../Utils";
+import React = require("react");
+
+interface PivotData {
+    type: string;
+    text: string;
+    x: number;
+    y: number;
+    width: number;
+    height: number;
+    fontSize: number;
+}
+
+export interface ViewDefBounds {
+    x: number;
+    y: number;
+    z?: number;
+    width: number;
+    height: number;
+    transition?: string;
+}
+
+export interface ViewDefResult {
+    ele: JSX.Element;
+    bounds?: ViewDefBounds;
+}
+
+export function computePivotLayout(pivotDoc: Doc, childDocs: Doc[], childPairs: { layout: Doc, data?: Doc }[], viewDefsToJSX: (views: any) => ViewDefResult[]) {
+    let layoutPoolData: Map<{ layout: Doc, data?: Doc }, any> = new Map();
+    const pivotAxisWidth = NumCast(pivotDoc.pivotWidth, 200);
+    const pivotColumnGroups = new Map<FieldResult<Field>, Doc[]>();
+
+    for (const doc of childDocs) {
+        const val = doc[StrCast(pivotDoc.pivotField, "title")];
+        if (val) {
+            !pivotColumnGroups.get(val) && pivotColumnGroups.set(val, []);
+            pivotColumnGroups.get(val)!.push(doc);
+        }
+    }
+
+    const minSize = Array.from(pivotColumnGroups.entries()).reduce((min, pair) => Math.min(min, pair[1].length), Infinity);
+    const numCols = NumCast(pivotDoc.pivotNumColumns, Math.ceil(Math.sqrt(minSize)));
+    const docMap = new Map<Doc, ViewDefBounds>();
+    const groupNames: PivotData[] = [];
+
+    let x = 0;
+    pivotColumnGroups.forEach((val, key) => {
+        let y = 0;
+        let xCount = 0;
+        groupNames.push({
+            type: "text",
+            text: String(key),
+            x,
+            y: pivotAxisWidth + 50,
+            width: pivotAxisWidth * 1.25 * numCols,
+            height: 100,
+            fontSize: NumCast(pivotDoc.pivotFontSize, 10)
+        });
+        for (const doc of val) {
+            docMap.set(doc, {
+                x: x + xCount * pivotAxisWidth * 1.25,
+                y: -y,
+                width: pivotAxisWidth,
+                height: doc.nativeWidth ? (NumCast(doc.nativeHeight) / NumCast(doc.nativeWidth)) * pivotAxisWidth : pivotAxisWidth
+            });
+            xCount++;
+            if (xCount >= numCols) {
+                xCount = 0;
+                y += pivotAxisWidth * 1.25;
+            }
+        }
+        x += pivotAxisWidth * 1.25 * (numCols + 1);
+    });
+
+    childPairs.map(pair => {
+        let defaultPosition = {
+            x: NumCast(pair.layout.x),
+            y: NumCast(pair.layout.y),
+            z: NumCast(pair.layout.z),
+            width: NumCast(pair.layout.width),
+            height: NumCast(pair.layout.height)
+        };
+        const pos = docMap.get(pair.layout) || defaultPosition;
+        layoutPoolData.set(pair, { transition: "transform 1s", ...pos });
+    });
+    return { map: layoutPoolData, elements: viewDefsToJSX(groupNames) };
+};
+
+
+
+export function AddCustomFreeFormLayout(doc: Doc, dataKey: string): () => void {
+    return () => {
+        let addOverlay = (key: "arrangeScript" | "arrangeInit", options: OverlayElementOptions, params?: Record<string, string>, requiredType?: string) => {
+            let overlayDisposer: () => void = emptyFunction; // filled in below after we have a reference to the scriptingBox
+            const scriptField = Cast(doc[key], ScriptField);
+            // tslint:disable-next-line: no-unnecessary-callback-wrapper
+            let scriptingBox = <ScriptBox initialText={scriptField && scriptField.script.originalScript}
+                onCancel={() => overlayDisposer()}  // don't get rid of the function wrapper-- we don't want to use the current value of overlayDiposer, but the one set below
+                onSave={(text, onError) => {
+                    const script = CompileScript(text, { params, requiredType, typecheck: false });
+                    if (!script.compiled) {
+                        onError(script.errors.map(error => error.messageText).join("\n"));
+                    } else {
+                        doc[key] = new ScriptField(script);
+                        overlayDisposer();
+                    }
+                }} />;
+            overlayDisposer = OverlayView.Instance.addWindow(scriptingBox, options);
+        };
+        addOverlay("arrangeInit", { x: 400, y: 100, width: 400, height: 300, title: "Layout Initialization" }, { collection: "Doc", docs: "Doc[]" }, undefined);
+        addOverlay("arrangeScript", { x: 400, y: 500, width: 400, height: 300, title: "Layout Script" }, { doc: "Doc", index: "number", collection: "Doc", state: "any", docs: "Doc[]" }, "{x: number, y: number, width?: number, height?: number}");
+    };
+}
-- 
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