Files
iD/modules/svg/panoramax_images.js
Martin Raifer 19957d0e39 keep photo viewer state on reset, properly clean up active marker
when switching between photos from different providers

fixes #10987
2025-04-29 09:38:18 +02:00

424 lines
12 KiB
JavaScript

import _throttle from 'lodash-es/throttle';
import { select as d3_select } from 'd3-selection';
import { services } from '../services';
import {svgPath, svgPointTransform} from './helpers';
export function svgPanoramaxImages(projection, context, dispatch) {
const throttledRedraw = _throttle(function () { dispatch.call('change'); }, 1000);
const imageMinZoom = 15;
const lineMinZoom = 10;
const viewFieldZoomLevel = 18;
let layer = d3_select(null);
let _panoramax;
let _viewerYaw = 0;
let _activeUsernameFilter;
let _activeIds;
function init() {
if (svgPanoramaxImages.initialized) return;
svgPanoramaxImages.enabled = false;
svgPanoramaxImages.initialized = true;
}
function getService() {
if (services.panoramax && !_panoramax) {
_panoramax = services.panoramax;
_panoramax.event
.on('viewerChanged', viewerChanged)
.on('loadedLines', throttledRedraw)
.on('loadedImages', throttledRedraw);
} else if (!services.panoramax && _panoramax) {
_panoramax = null;
}
return _panoramax;
}
/**
* Filters the images given the filters on the right panel
* @param {*} images
* @returns array of filtered images
*/
async function filterImages(images) {
const showsPano = context.photos().showsPanoramic();
const showsFlat = context.photos().showsFlat();
const fromDate = context.photos().fromDate();
const toDate = context.photos().toDate();
const username = context.photos().usernames();
const service = getService();
if (!showsPano || !showsFlat) {
images = images.filter(function(image) {
if (image.isPano) return showsPano;
return showsFlat;
});
}
if (fromDate) {
images = images.filter(function(image) {
return new Date(image.capture_time).getTime() >= new Date(fromDate).getTime();
});
}
if (toDate) {
images = images.filter(function(image) {
return new Date(image.capture_time).getTime() <= new Date(toDate).getTime();
});
}
if (username && service) {
if (_activeUsernameFilter !== username) {
_activeUsernameFilter = username;
const tempIds = await service.getUserIds(username);
_activeIds = {};
tempIds.forEach(id => {
_activeIds[id] = true;
});
}
images = images.filter(function(image) {
return _activeIds[image.account_id];
});
}
return images;
}
/**
* Filters the sequences given the filters on the right panel
* @param {*} sequences
* @returns array of filtered sequences
*/
async function filterSequences(sequences) {
const showsPano = context.photos().showsPanoramic();
const showsFlat = context.photos().showsFlat();
const fromDate = context.photos().fromDate();
const toDate = context.photos().toDate();
const username = context.photos().usernames();
const service = getService();
if (!showsPano || !showsFlat) {
sequences = sequences.filter(function(sequence) {
if (sequence.properties.type === 'equirectangular') return showsPano;
return showsFlat;
});
}
if (fromDate) {
sequences = sequences.filter(function(sequence) {
return new Date(sequence.properties.date).getTime() >= new Date(fromDate).getTime().toString();
});
}
if (toDate) {
sequences = sequences.filter(function(sequence) {
return new Date(sequence.properties.date).getTime() <= new Date(toDate).getTime().toString();
});
}
if (username && service) {
if (_activeUsernameFilter !== username) {
_activeUsernameFilter = username;
const tempIds = await service.getUserIds(username);
_activeIds = {};
tempIds.forEach(id => {
_activeIds[id] = true;
});
}
sequences = sequences.filter(function(sequence) {
return _activeIds[sequence.properties.account_id];
});
}
return sequences;
}
/**
* Shows the selected layer
*/
function showLayer() {
const service = getService();
if (!service) return;
editOn();
layer
.style('opacity', 0)
.transition()
.duration(250)
.style('opacity', 1)
.on('end', function () { dispatch.call('change'); });
}
/**
* Hides the selected layer
*/
function hideLayer() {
throttledRedraw.cancel();
layer
.transition()
.duration(250)
.style('opacity', 0)
.on('end', editOff);
}
/**
* Updates the viewfinder for the selected image bubble based on the frame's yaw
* @param {*} d Current Active image Data
* @param {*} selectedImageId The selected bubble image ID
*/
function transform(d, selectedImageId) {
let t = svgPointTransform(projection)(d);
let rot = d.heading;
if (d.id === selectedImageId) {
rot += _viewerYaw;
}
if (rot) {
t += ' rotate(' + Math.floor(rot) + ',0,0)';
}
return t;
}
function editOn() {
layer.style('display', 'block');
}
function editOff() {
layer.selectAll('.viewfield-group').remove();
layer.style('display', 'none');
}
/**
* Updates the current selected image
* @param {*} image The selected image bubble data
*/
function click(d3_event, image) {
const service = getService();
if (!service) return;
service
.ensureViewerLoaded(context)
.then(function() {
service
.selectImage(context, image.id)
.showViewer(context);
});
context.map().centerEase(image.loc);
}
function mouseover(d3_event, image) {
const service = getService();
if (service) service.setStyles(context, image);
}
function mouseout() {
const service = getService();
if (service) service.setStyles(context, null);
}
/**
* Updates the current view, rearranging lines and bubbles.
*/
async function update() {
const zoom = ~~context.map().zoom();
const showViewfields = (zoom >= viewFieldZoomLevel);
const service = getService();
let sequences = (service ? service.sequences(projection, zoom) : []);
let images = (service && zoom >= imageMinZoom ? service.images(projection) : []);
dispatch.call('photoDatesChanged', this, 'panoramax', [...images.map(p => p.capture_time), ...sequences.map(s => s.properties.date)]);
images = await filterImages(images);
sequences = await filterSequences(sequences, service);
let traces = layer.selectAll('.sequences').selectAll('.sequence')
.data(sequences, function(d) { return d.properties.id; });
// exit
traces.exit()
.remove();
traces.enter()
.append('path')
.attr('class', 'sequence')
.merge(traces)
.attr('d', svgPath(projection).geojson);
const groups = layer.selectAll('.markers').selectAll('.viewfield-group')
.data(images, function(d) { return d.id; });
// exit
groups.exit()
.remove();
// enter
const groupsEnter = groups.enter()
.append('g')
.attr('class', 'viewfield-group')
.on('mouseenter', mouseover)
.on('mouseleave', mouseout)
.on('click', click);
groupsEnter
.append('g')
.attr('class', 'viewfield-scale');
const activeImageId = service.getActiveImage()?.id;
// update
const markers = groups
.merge(groupsEnter)
.sort(function(a, b) {
// active image on top
if (a.id === activeImageId) return 1;
if (b.id === activeImageId) return -1;
// else: sort by capture time (newest on top)
return a.capture_time_parsed - b.capture_time_parsed;
})
.attr('transform', d => transform(d, activeImageId))
.select('.viewfield-scale');
markers.selectAll('circle')
.data([0])
.enter()
.append('circle')
.attr('dx', '0')
.attr('dy', '0')
.attr('r', '6');
const viewfields = markers.selectAll('.viewfield')
.data(showViewfields ? [0] : []);
viewfields.exit()
.remove();
viewfields.enter()
.insert('path', 'circle')
.attr('class', 'viewfield')
.attr('transform', 'scale(1.5,1.5),translate(-8, -13)')
.attr('d', viewfieldPath);
service.setStyles(context, null);
function viewfieldPath() {
if (this.parentNode.__data__.isPano) {
return 'M 8,13 m -10,0 a 10,10 0 1,0 20,0 a 10,10 0 1,0 -20,0';
} else {
return 'M 6,9 C 8,8.4 8,8.4 10,9 L 16,-2 C 12,-5 4,-5 0,-2 z';
}
}
}
function viewerChanged() {
const service = getService();
if (!service) return;
const frame = service.photoFrame();
if (!frame) return;
// update viewfield rotation
_viewerYaw = frame.getYaw();
// avoid updating if the map is currently transformed
// e.g. during drags or easing.
if (context.map().isTransformed()) return;
layer.selectAll('.viewfield-group.currentView')
.attr('transform', d => transform(d, d.id));
}
/**
* Draws bubbles and lines on the current view
* @param {*} selection Current HTML Selection
*/
function drawImages(selection) {
const enabled = svgPanoramaxImages.enabled;
const service = getService();
layer = selection.selectAll('.layer-panoramax')
.data(service ? [0] : []);
layer.exit()
.remove();
const layerEnter = layer.enter()
.append('g')
.attr('class', 'layer-panoramax')
.style('display', enabled ? 'block' : 'none');
layerEnter
.append('g')
.attr('class', 'sequences');
layerEnter
.append('g')
.attr('class', 'markers');
layer = layerEnter
.merge(layer);
if (enabled) {
let zoom = ~~context.map().zoom();
if (service){
if (zoom >= imageMinZoom) {
editOn();
update();
service.loadImages(projection);
} else if (zoom >= lineMinZoom) {
editOn();
update();
service.loadLines(projection, zoom);
} else {
editOff();
dispatch.call('photoDatesChanged', this, 'panoramax', []);
}
} else {
editOff();
}
} else {
dispatch.call('photoDatesChanged', this, 'panoramax', []);
}
}
/**
* @returns if layer is active
*/
drawImages.enabled = function(_) {
if (!arguments.length) return svgPanoramaxImages.enabled;
svgPanoramaxImages.enabled = _;
if (svgPanoramaxImages.enabled) {
showLayer();
context.photos().on('change.panoramax_images', update);
} else {
hideLayer();
context.photos().on('change.panoramax_images', null);
}
dispatch.call('change');
return this;
};
drawImages.supported = function() {
return !!getService();
};
/**
* @returns if layer is drawn
*/
drawImages.rendered = function(zoom) {
return zoom >= lineMinZoom;
};
init();
return drawImages;
}