Simple image viewing with custom code.

src/context/modal_gallery_context.js

@@ -0,0 +1,3 @@
+import { createContext } from 'react';
+
+export const g_modal_gallery_context = createContext([{}, () => { }]);

src/gallery/gallery.js

@@ -0,0 +1,82 @@
+import React, { useState, useEffect } from 'react';
+import Box from '@material-ui/core/Box';
+
+import { makeStyles } from '@material-ui/core/styles';
+
+const useStyles = makeStyles(theme => ({
+    background: {
+        width: "100%",
+        height: "100%",
+        overflow: "auto",
+        position: "absolute",
+        "background-color": "rgba(0,0,0,1)",
+        'overflow': 'hidden',
+    },
+    image_container: {
+        'width': '100%',
+        'height': '100%',
+        'overflow': 'hidden',
+    },
+    image: {
+        'object-fit': 'contain',
+        'width': '100%',
+        'height': '100%',
+        'overflow': 'hidden',
+    },
+}));
+
+export function GalleryImageRender(props) {
+    const { src } = props;
+    const classes = useStyles();
+
+    return (
+        <img src={src}
+            className={classes.image} />
+    );
+}
+
+export function GalleryImage(props) {
+    const { photo } = props;
+
+    // First show the fast (thumbnail) image.
+    const [src, setSrc] = useState(photo.state.thumbnailpath);
+
+    // Start a fetch of the full image, then show that.
+    useEffect(() => {
+        console.log("Fetching...");
+        fetch(photo.state.path)
+            .then(() => {
+                console.log("Fetch done. setting image.");
+                setSrc(photo.state.path);
+            })
+    }, []);
+
+    return (
+        <GalleryImageRender src={src}/>
+    );
+}
+
+export function Gallery(props) {
+    const { onClose, items, current_item } = props;
+    const classes = useStyles();
+
+    var maybe_photo = false;
+    if (items && items.length > 0 && current_item < items.length) {
+        maybe_photo = items[current_item];
+    }
+
+    return (
+        <>
+            <Box
+                className={classes.background}
+                onClick={onClose}>
+                <Box className={classes.image_container}>
+                    {
+                        maybe_photo &&
+                        <GalleryImage photo={maybe_photo} />
+                    }
+                </Box>
+            </Box>
+        </>
+    );
+}

src/gridgallery.js

@@ -1,8 +1,10 @@
-import React from 'react';
+import React, { useContext } from 'react';
 
 import Box from '@material-ui/core/Box';
 import { makeStyles } from '@material-ui/core/styles';
 
+import { g_modal_gallery_context } from './context/modal_gallery_context.js';
+
 const useStyles = makeStyles(theme => ({
     gallery: {
         width: "100%",
@@ -12,6 +14,7 @@ const useStyles = makeStyles(theme => ({
     },
     imgitem: {
         width: "100%",
+        cursor: 'pointer',
     }
 }));
 
@@ -35,9 +38,8 @@ export function GridGalleryItem(props) {
 }
 
 export function PhotoItem(props) {
-    const { photo, row_height } = props;
+    const { photo, row_height, onClick } = props;
     const classes = useStyles();
-
     const photo_width = (photo.state.fullsize[0] / photo.state.fullsize[1]) * row_height;
 
     return (
@@ -45,7 +47,7 @@ export function PhotoItem(props) {
             width={photo_width}
             height={row_height}
         >
-            <img src={photo.state.thumbnailpath} className={classes.imgitem} />
+            <img src={photo.state.thumbnailpath} className={classes.imgitem} onClick={onClick} />
         </GridGalleryItem>
     );
 }
@@ -66,43 +68,27 @@ export function ItemGridGallery(props) {
 export function GridGallery(props) {
     const { photos } = props;
 
-    return (
+    const [modalGalleryState, setModalGalleryState] = useContext(g_modal_gallery_context);
-        <ItemGridGallery>
-            {photos.map(photo => {
-                return <PhotoItem photo={photo} row_height={300} />
-            })}
-        </ItemGridGallery>
-    );
-}
-
-
 
-/*
+    var _ = require('lodash');
 
-const useStyles = makeStyles(theme => ({
+    const handleClick = (idx) => {
-    root: {
+        const state = _.cloneDeep(modalGalleryState);
-        width: "100%",
+        state.active = true;
-    },
+        state.items = photos;
-}));
+        state.current_item = idx;
-
+        setModalGalleryState(state);
-const photo_to_gallery_photo = (photo) => {
-    if (!photo.state.fullsize) {
-        throw new Error("Photo for gallery does not have a size.");
-    }
-    return {
-        src: photo.state.path,
-        thumbnail: photo.state.thumbnailpath,
-        thumbnailWidth: photo.state.fullsize[0],
-        thumbnailHeight: photo.state.fullsize[1],
-        caption: photo.state.name,
     }
-}
-
-export function GridGallery(props) {
-    const classes = useStyles();
 
     return (
-        <Gallery className={classes.root} enableImageSelection={false} images={props.photos.map(x => photo_to_gallery_photo(x))} />
+        <ItemGridGallery>
-    )
+            {photos.map((photo, idx) => {
+                return <PhotoItem
+                photo={photo}
+                row_height={300}
+                onClick={() => {handleClick(idx);}}
+                />
+            })}
+        </ItemGridGallery>
+    );
 }
-*/

src/lib/modal.js

@@ -0,0 +1,37 @@
+import React, { useState, useEffect } from 'react'
+import ReactDOM from 'react-dom'
+
+import { makeStyles } from '@material-ui/core/styles'
+
+const useStyles = makeStyles(theme => ({
+    modal: {
+        position: "fixed",
+        top: '0px',
+        left: '0px',
+        width: '100%',
+        height: '100vh',
+        'z-index': '1300', //Material UI "modal" value
+    },
+}));
+
+export function Modal(props) {
+    const { children, active } = props;
+    const [el, setEl] = useState(null);
+    const classes = useStyles();
+
+    useEffect(() => {
+        const new_el = document.createElement('div');
+        new_el.className = classes.modal;
+        setEl(new_el);
+        document.getElementById('root').appendChild(new_el);
+    }, []);
+
+    if(!el) {
+        return <></>;
+    }
+    if(el) {
+        el.style.visibility = active ? 'visible' : 'hidden';
+    }
+    return ReactDOM.createPortal(children, el);
+}
+

src/main.js

@@ -12,6 +12,9 @@ import { UserQuery, user_query_from_search_string, maybe_image_query, do_image_q
 import { Browser } from './browser.js';
 import { UserQueryWidget } from './userquerywidget.js';
 import { ResultsView } from './resultsview.js';
+import { Modal } from './lib/modal.js';
+import { Gallery } from './gallery/gallery.js';
+import { g_modal_gallery_context } from './context/modal_gallery_context.js';
 
 const useStyles = makeStyles(theme => ({
     root: {
@@ -46,6 +49,11 @@ export function LoadedMainPage(props) {
     const [allTags, setAllTags] = React.useState([]);
     const [albums, setAlbums] = React.useState([]);
     const [tags, setTags] = React.useState([]);
+    const [modalGalleryState, setModalGalleryState] = React.useState({
+        active: false,
+        items: [],
+        current_item: 0,
+    });
     const { database, photos_dir, thumbs_dir } = props;
 
     var _ = require('lodash');
@@ -122,8 +130,17 @@ export function LoadedMainPage(props) {
         onNewQuery(query);
     }
 
+    function handleGalleryClose() {
+        var state = _.cloneDeep(modalGalleryState);
+        state.active = false;
+        state.items = [];
+        state.current_item = 0;
+        setModalGalleryState(state);
+    }
+
     return (
         <>
+            <g_modal_gallery_context.Provider value={[modalGalleryState, setModalGalleryState]}>
                 <Box className={classes.root}>
                     <Box className={classes.navigator}>
                         <Box className={classes.margined}>{albums && <Browser albums={allAlbums} tags={allTags} onNewQuery={onNewQuery} />}</Box>
@@ -134,6 +151,14 @@ export function LoadedMainPage(props) {
                         <Box className={classes.margined}>{photos && <ResultsView photos={photos ? photos : []} albums={albums ? albums : []} tags={tags ? tags : []} />}</Box>
                     </Box>
                 </Box>
+            </g_modal_gallery_context.Provider>
+            <Modal active={modalGalleryState.active}>
+                <Gallery
+                    onClose={handleGalleryClose}
+                    items={modalGalleryState.items}
+                    current_item={modalGalleryState.current_item}
+                />
+            </Modal>
         </>
     );
 }
@@ -147,8 +172,8 @@ const theme = createMuiTheme({
     },
 });
 
-
 export function MainPage() {
+    // TODO: ProvideDB should be put in a context like the modal gallery is.
     return (
         <ThemeProvider theme={theme}>
             <ProvideDB

src/queries.js

@@ -89,14 +89,6 @@ export const MatchTypeEnum = {
     MATCH_TAG_NAME_EQUALS: 10, // Match on the local tag name (excluding parents)
 }
 
-/*
-export const ResultTypeEnum = {
-    IMAGE: 1,
-    ALBUM: 2,
-    TAG: 3,
-}
-*/
-
 export class ResultFilter {
 
     to_sql_where() { return "(1=1)"; }