From c3eea60fa586e8ff9cf59497c041044fd0143bb1 Mon Sep 17 00:00:00 2001
From: Bob Zeleznik <zzzman@gmail.com>
Date: Thu, 28 Mar 2019 21:03:17 -0400
Subject: organized collectionfreeformview.  fixed issues with showing links

---
 .../collectionFreeForm/PreviewCursor.tsx           | 76 ++++++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 src/client/views/collections/collectionFreeForm/PreviewCursor.tsx

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

diff --git a/src/client/views/collections/collectionFreeForm/PreviewCursor.tsx b/src/client/views/collections/collectionFreeForm/PreviewCursor.tsx
new file mode 100644
index 000000000..95364f04b
--- /dev/null
+++ b/src/client/views/collections/collectionFreeForm/PreviewCursor.tsx
@@ -0,0 +1,76 @@
+import { action, IReactionDisposer, observable, reaction } from "mobx";
+import { observer } from "mobx-react";
+import { Document } from "../../../../fields/Document";
+import { Opt } from "../../../../fields/Field";
+import { Documents } from "../../../documents/Documents";
+import { Transform } from "../../../util/Transform";
+import { CollectionFreeFormView } from "./CollectionFreeFormView";
+import "./PreviewCursor.scss";
+import React = require("react");
+
+
+export interface PreviewCursorProps {
+    getTransform: () => Transform;
+    container: CollectionFreeFormView;
+    addLiveTextDocument: (doc: Document) => void;
+}
+
+@observer
+export class PreviewCursor extends React.Component<PreviewCursorProps>  {
+    private _reactionDisposer: Opt<IReactionDisposer>;
+
+    @observable _lastX: number = 0;
+    @observable _lastY: number = 0;
+
+    componentDidMount() {
+        this._reactionDisposer = reaction(
+            () => this.props.container.PreviewCursorVisible,
+            (visible: boolean) => this.onCursorPlaced(visible, this.props.container.DownX, this.props.container.DownY))
+    }
+    componentWillUnmount() {
+        if (this._reactionDisposer) {
+            this._reactionDisposer();
+        }
+        this.cleanupInteractions();
+    }
+
+
+    @action
+    cleanupInteractions = () => {
+        document.removeEventListener("keypress", this.onKeyPress, false);
+    }
+
+    @action
+    onCursorPlaced = (visible: boolean, downX: number, downY: number): void => {
+        if (visible) {
+            document.addEventListener("keypress", this.onKeyPress, false);
+            this._lastX = downX;
+            this._lastY = downY;
+        } else
+            this.cleanupInteractions();
+    }
+
+    @action
+    onKeyPress = (e: KeyboardEvent) => {
+        // Mixing events between React and Native is finicky.  In FormattedTextBox, we set the
+        // DASHFormattedTextBoxHandled flag when a text box consumes a key press so that we can ignore
+        // the keyPress here.
+        //if not these keys, make a textbox if preview cursor is active!
+        if (!e.ctrlKey && !e.altKey && !e.defaultPrevented && !(e as any).DASHFormattedTextBoxHandled) {
+            //make textbox and add it to this collection
+            let [x, y] = this.props.getTransform().transformPoint(this._lastX, this._lastY);
+            let newBox = Documents.TextDocument({ width: 200, height: 100, x: x, y: y, title: "typed text" });
+            this.props.addLiveTextDocument(newBox);
+            e.stopPropagation();
+        }
+    }
+
+    render() {
+        //get local position and place cursor there!
+        let [x, y] = this.props.getTransform().transformPoint(this._lastX, this._lastY);
+        return (
+            !this.props.container.PreviewCursorVisible ? (null) :
+                <div className="previewCursor" id="previewCursor" style={{ transform: `translate(${x}px, ${y}px)` }}>I</div>)
+
+    }
+}
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