Merge branch 'master' of https://github.com/browngraphicslab/Dash-Web into pdf_snippet

1 files changed, 119 insertions, 40 deletions

diff --git a/src/client/views/ContextMenu.tsx b/src/client/views/ContextMenu.tsx
index 1133f70a1..69692dbb8 100644
--- a/src/client/views/ContextMenu.tsx
+++ b/src/client/views/ContextMenu.tsx
@@ -1,11 +1,12 @@
 import React = require("react");
-import { ContextMenuItem, ContextMenuProps } from "./ContextMenuItem";
+import { ContextMenuItem, ContextMenuProps, OriginalMenuProps } from "./ContextMenuItem";
 import { observable, action, computed } from "mobx";
 import { observer } from "mobx-react";
 import "./ContextMenu.scss";
 import { library } from '@fortawesome/fontawesome-svg-core';
 import { FontAwesomeIcon } from '@fortawesome/react-fontawesome';
 import { faSearch, faCircle } from '@fortawesome/free-solid-svg-icons';
+import Measure from "react-measure";
 
 library.add(faSearch);
 library.add(faCircle);
@@ -14,23 +15,21 @@ library.add(faCircle);
 export class ContextMenu extends React.Component {
     static Instance: ContextMenu;
 
-    @observable private _items: Array<ContextMenuProps> = [{ description: "test", event: (e: React.MouseEvent) => e.preventDefault(), icon: "smile" }];
+    @observable private _items: Array<ContextMenuProps> = [];
     @observable private _pageX: number = 0;
     @observable private _pageY: number = 0;
     @observable private _display: boolean = false;
     @observable private _searchString: string = "";
     // afaik displaymenu can be called before all the items are added to the menu, so can't determine in displayMenu what the height of the menu will be
     @observable private _yRelativeToTop: boolean = true;
+    @observable selectedIndex = -1;
 
-    private _searchRef = React.createRef<HTMLInputElement>();
-
-    private ref: React.RefObject<HTMLDivElement>;
+    @observable private _width: number = 0;
+    @observable private _height: number = 0;
 
     constructor(props: Readonly<{}>) {
         super(props);
 
-        this.ref = React.createRef();
-
         ContextMenu.Instance = this;
     }
 
@@ -50,23 +49,42 @@ export class ContextMenu extends React.Component {
         return this._items;
     }
 
+    static readonly buffer = 20;
+    get pageX() {
+        const x = this._pageX;
+        if (x < 0) {
+            return 0;
+        }
+        const width = this._width;
+        if (x + width > window.innerWidth - ContextMenu.buffer) {
+            return window.innerWidth - ContextMenu.buffer - width;
+        }
+        return x;
+    }
+
+    get pageY() {
+        const y = this._pageY;
+        if (y < 0) {
+            return 0;
+        }
+        const height = this._height;
+        if (y + height > window.innerHeight - ContextMenu.buffer) {
+            return window.innerHeight - ContextMenu.buffer - height;
+        }
+        return y;
+    }
+
     @action
     displayMenu(x: number, y: number) {
         //maxX and maxY will change if the UI/font size changes, but will work for any amount
         //of items added to the menu
-        let maxX = window.innerWidth - 150;
-        let maxY = window.innerHeight - ((this._items.length + 1/*for search box*/) * 34 + 30);
 
-        this._pageX = x > maxX ? maxX : x;
-        this._pageY = y > maxY ? maxY : y;
+        this._pageX = x;
+        this._pageY = y;
 
         this._searchString = "";
 
         this._display = true;
-
-        if (this._searchRef.current) {
-            this._searchRef.current.focus();
-        }
     }
 
     @action
@@ -75,73 +93,134 @@ export class ContextMenu extends React.Component {
         this._display = false;
     }
 
-    @computed get filteredItems() {
+    @computed get filteredItems(): (OriginalMenuProps | string[])[] {
         const searchString = this._searchString.toLowerCase().split(" ");
         const matches = (descriptions: string[]): boolean => {
-            return searchString.every(s => descriptions.some(desc => desc.includes(s)));
+            return searchString.every(s => descriptions.some(desc => desc.toLowerCase().includes(s)));
         };
-        const createGroupHeader = (contents: any) => {
-            return (
-                <div className="contextMenu-group">
-                    <div className="contextMenu-description">{contents}</div>
-                </div>
-            );
-        };
-        const createItem = (item: ContextMenuProps) => <ContextMenuItem {...item} key={item.description} closeMenu={this.closeMenu} />;
-        const flattenItems = (items: ContextMenuProps[], groupFunc: (contents: any) => JSX.Element, getPath: () => string[]) => {
-            let eles: JSX.Element[] = [];
+        const flattenItems = (items: ContextMenuProps[], groupFunc: (groupName: any) => string[]) => {
+            let eles: (OriginalMenuProps | string[])[] = [];
 
+            const leaves: OriginalMenuProps[] = [];
             for (const item of items) {
-                const description = item.description.toLowerCase();
-                const path = [...getPath(), description];
+                const description = item.description;
+                const path = groupFunc(description);
                 if ("subitems" in item) {
-                    const children = flattenItems(item.subitems, contents => groupFunc(<>{item.description} -> {contents}</>), () => path);
+                    const children = flattenItems(item.subitems, name => [...groupFunc(description), name]);
                     if (children.length || matches(path)) {
-                        eles.push(groupFunc(item.description));
+                        eles.push(path);
                         eles = eles.concat(children);
                     }
                 } else {
                     if (!matches(path)) {
                         continue;
                     }
-                    eles.push(createItem(item));
+                    leaves.push(item);
                 }
             }
 
+            eles = [...leaves, ...eles];
+
             return eles;
         };
-        return flattenItems(this._items, createGroupHeader, () => []);
+        return flattenItems(this._items, name => [name]);
+    }
+
+    @computed get flatItems(): OriginalMenuProps[] {
+        return this.filteredItems.filter(item => !Array.isArray(item)) as OriginalMenuProps[];
+    }
+
+    @computed get filteredViews() {
+        const createGroupHeader = (contents: any) => {
+            return (
+                <div className="contextMenu-group">
+                    <div className="contextMenu-description">{contents}</div>
+                </div>
+            );
+        };
+        const createItem = (item: ContextMenuProps, selected: boolean) => <ContextMenuItem {...item} key={item.description} closeMenu={this.closeMenu} selected={selected} />;
+        let itemIndex = 0;
+        return this.filteredItems.map(value => {
+            if (Array.isArray(value)) {
+                return createGroupHeader(value.join(" -> "));
+            } else {
+                return createItem(value, itemIndex++ === this.selectedIndex);
+            }
+        });
     }
 
     @computed get menuItems() {
         if (!this._searchString) {
             return this._items.map(item => <ContextMenuItem {...item} key={item.description} closeMenu={this.closeMenu} />);
         }
-        return this.filteredItems;
+        return this.filteredViews;
     }
 
     render() {
         if (!this._display) {
             return null;
         }
-        let style = this._yRelativeToTop ? { left: this._pageX, top: this._pageY } :
-            { left: this._pageX, bottom: this._pageY };
+        let style = this._yRelativeToTop ? { left: this.pageX, top: this.pageY } :
+            { left: this.pageX, bottom: this.pageY };
 
-        return (
-            <div className="contextMenu-cont" style={style} ref={this.ref}>
+        console.log(this._pageX);
+        console.log(this.pageX);
+        console.log();
+
+        const contents = (
+            <>
                 <span>
                     <span className="icon-background">
                         <FontAwesomeIcon icon="search" size="lg" />
                     </span>
-                    <input className="contextMenu-item contextMenu-description" type="text" placeholder="Search . . ." value={this._searchString} onChange={this.onChange} ref={this._searchRef} autoFocus />
+                    <input className="contextMenu-item contextMenu-description" type="text" placeholder="Search . . ." value={this._searchString} onKeyDown={this.onKeyDown} onChange={this.onChange} autoFocus />
                 </span>
                 {this.menuItems}
-            </div>
+            </>
+        );
+        return (
+            <Measure offset onResize={action((r: any) => { this._width = r.offset.width; this._height = r.offset.height; })}>
+                {({ measureRef }) => (
+                    <div className="contextMenu-cont" style={style} ref={measureRef}>
+                        {contents}
+                    </div>
+                )
+                }
+            </Measure>
         );
     }
 
     @action
+    onKeyDown = (e: React.KeyboardEvent) => {
+        if (e.key === "ArrowDown") {
+            if (this.selectedIndex < this.flatItems.length - 1) {
+                this.selectedIndex++;
+            }
+            e.preventDefault();
+        } else if (e.key === "ArrowUp") {
+            if (this.selectedIndex > 0) {
+                this.selectedIndex--;
+            }
+            e.preventDefault();
+        } else if (e.key === "Enter") {
+            const item = this.flatItems[this.selectedIndex];
+            item.event();
+            this.closeMenu();
+        }
+    }
+
+    @action
     onChange = (e: React.ChangeEvent<HTMLInputElement>) => {
         this._searchString = e.target.value;
+        if (!this._searchString) {
+            this.selectedIndex = -1;
+        }
+        else {
+            if (this.selectedIndex === -1) {
+                this.selectedIndex = 0;
+            } else {
+                this.selectedIndex = Math.min(this.flatItems.length - 1, this.selectedIndex);
+            }
+        }
     }
 }
\ No newline at end of file