wip: allow to sync version restore

Co-authored-by: David Larlet <david@larlet.fr>

umap/static/umap/css/bar.css

@@ -14,11 +14,12 @@
     background-color: inherit;
 }
 .leaflet-container .edit-save,
-.leaflet-container .edit-cancel,
+.leaflet-container .edit-undo,
+.leaflet-container .edit-redo,
 .leaflet-container .edit-disable,
 .leaflet-container .connected-peers
 {
-    display: block;
+    display: inline-block;
     height: 32px;
     line-height: 30px;
     padding: 0 20px;
@@ -39,7 +40,8 @@
     color: var(--color-darkGray);
 }
 
-.leaflet-container .edit-cancel:hover,
+.leaflet-container .edit-undo:hover,
+.leaflet-container .edit-redo:hover,
 .leaflet-container .edit-disable:hover {
     border: 0.5px solid rgba(153, 153, 153, 0.80);
     text-decoration: none;
@@ -76,19 +78,13 @@
     background: rgba(66, 236, 230, 0.10);
 }
 .leaflet-container .edit-save,
-.leaflet-container .edit-cancel,
-.leaflet-container .edit-disable,
 .umap-edit-enabled .edit-enable {
     display: none;
 }
 .umap-edit-enabled .edit-save,
-.umap-edit-enabled .edit-disable,
+.umap-edit-enabled .edit-disable {
-.umap-edit-enabled.umap-is-dirty .edit-cancel {
     display: inline-block;
 }
-.umap-is-dirty .edit-disable {
-    display: none;
-}
 .umap-caption-bar {
     display: none;
 }

umap/static/umap/css/icon.css

@@ -167,11 +167,15 @@ html[dir="rtl"] .icon {
 .icon-profile {
     background-position: 0 calc(var(--tile) * 4);
 }
+.icon-redo {
+    background-position: calc(var(--tile) * 3) calc(var(--tile) * 7);
+}
 .icon-resize {
     background-position: calc(var(--tile) * 3) calc(var(--tile) * 6);
 }
+.icon-undo,
 .icon-restore {
-    background-position: calc(var(--tile) * 5) calc(var(--tile) * 3);
+    background-position: calc(var(--tile) * 2) calc(var(--tile) * 7);
 }
 .expanded .icon-resize {
     background-position: calc(var(--tile) * 2) calc(var(--tile) * 6);

umap/static/umap/img/16-white.svg

@@ -18,6 +18,9 @@
   <clipPath id="clip0_3071_861">
    <rect id="rect3" width="18" height="20" fill="#fff"/>
   </clipPath>
+  <clipPath id="clip0_241_10857-3">
+   <rect id="rect586-6" width="18.05" height="19.01" fill="#fff"/>
+  </clipPath>
  </defs>
  <metadata id="metadata7">
   <rdf:RDF>
@@ -67,9 +70,12 @@
    </g>
   </g>
   <path id="path4873" d="m108.15 816.36v3.8267h3.8544v-3.8267zm0.51755 4.3517-1.2459 2.3132 1.1669 0.61848 1.244-2.3151zm-1.8689 3.4717-0.27666 0.51571h-2.426v2.2441l-4.0916 4.064 1.3626 1.3528 3.862-3.8342h2.7214v-3.6959l0.015-0.028-0.015-8e-3v-0.0953h-0.17879l-0.97303-0.51571z" color="#000000" color-rendering="auto" fill="#f2f2f2" fill-rule="evenodd" image-rendering="auto" shape-rendering="auto" solid-color="#000000" stroke="#999" stroke-width=".25" style="isolation:auto;mix-blend-mode:normal;text-decoration-color:#000000;text-decoration-line:none;text-decoration-style:solid;text-indent:0;text-transform:none;white-space:normal"/>
-  <g id="g4244" transform="matrix(.51357 -.54309 .54309 .51357 -518.02 506.23)">
+  <g id="g4244" transform="matrix(.51357 -.54309 .54309 .51357 -590.02 601.73)">
    <path id="path4240" transform="matrix(.91922 .97205 -.97205 .91922 152.14 647.93)" d="m220.49 133.52c-0.33017 0.01-0.66239 0.0456-0.99414 0.10742-2.2249 0.41425-4.0267 1.9575-4.832 4.0098l-0.87696-1.8164a0.50005 0.50005 0 0 0-0.83398-0.11328 0.50005 0.50005 0 0 0-0.0664 0.54883l1.459 3.0195a0.50005 0.50005 0 0 0 0.60742 0.25586l2.8438-0.94532a0.50028 0.50028 0 1 0-0.31641-0.94922l-2.002 0.66797c0.61312-1.8902 2.2073-3.3241 4.2012-3.6953 2.2474-0.41845 4.5146 0.59912 5.6953 2.5566 1.1807 1.9575 1.022 4.4377-0.39648 6.2305-1.4185 1.7928-3.7961 2.5154-5.9727 1.8164a0.50005 0.50005 0 1 0-0.30469 0.95117c2.5704 0.82539 5.3874-0.0294 7.0625-2.1465 0.4188-0.52924 0.74532-1.1114 0.97657-1.7207 0.69373-1.828 0.53599-3.9147-0.50977-5.6484-1.22-2.0227-3.4291-3.1977-5.7402-3.1289z" color="#000000" color-rendering="auto" fill="#f2f2f2" image-rendering="auto" shape-rendering="auto" solid-color="#000000" stroke="#999" stroke-linecap="round" stroke-linejoin="round" stroke-width=".25" style="isolation:auto;mix-blend-mode:normal;text-decoration-color:#000000;text-decoration-line:none;text-decoration-style:solid;text-indent:0;text-transform:none;white-space:normal"/>
   </g>
+  <g id="g4244-6" transform="matrix(-.51357 -.54309 -.54309 .51357 734.02 601.73)">
+   <path id="path4240-7" transform="matrix(.91922 .97205 -.97205 .91922 152.14 647.93)" d="m220.49 133.52c-0.33017 0.01-0.66239 0.0456-0.99414 0.10742-2.2249 0.41425-4.0267 1.9575-4.832 4.0098l-0.87696-1.8164a0.50005 0.50005 0 0 0-0.83398-0.11328 0.50005 0.50005 0 0 0-0.0664 0.54883l1.459 3.0195a0.50005 0.50005 0 0 0 0.60742 0.25586l2.8438-0.94532a0.50028 0.50028 0 1 0-0.31641-0.94922l-2.002 0.66797c0.61312-1.8902 2.2073-3.3241 4.2012-3.6953 2.2474-0.41845 4.5146 0.59912 5.6953 2.5566 1.1807 1.9575 1.022 4.4377-0.39648 6.2305-1.4185 1.7928-3.7961 2.5154-5.9727 1.8164a0.50005 0.50005 0 1 0-0.30469 0.95117c2.5704 0.82539 5.3874-0.0294 7.0625-2.1465 0.4188-0.52924 0.74532-1.1114 0.97657-1.7207 0.69373-1.828 0.53599-3.9147-0.50977-5.6484-1.22-2.0227-3.4291-3.1977-5.7402-3.1289z" color="#000000" color-rendering="auto" fill="#f2f2f2" image-rendering="auto" shape-rendering="auto" solid-color="#000000" stroke="#999" stroke-linecap="round" stroke-linejoin="round" stroke-width=".25" style="isolation:auto;mix-blend-mode:normal;text-decoration-color:#000000;text-decoration-line:none;text-decoration-style:solid;text-indent:0;text-transform:none;white-space:normal"/>
+  </g>
   <g id="delete-vertex" transform="translate(-90,-64)">
    <path id="path4349-2-2-9-3-8-3-5" transform="translate(0 852.36)" d="m227.55 53.105-6.0547 3.0273h-3.4414v3.5176l-2.9512 5.9023 1.7891 0.89453 3.1562-6.3145h2.0059v-2.043l6.3906-3.1953z" color="#000000" color-rendering="auto" fill="#f2f2f2" image-rendering="auto" shape-rendering="auto" solid-color="#000000" stroke="#999" stroke-width=".25" style="isolation:auto;mix-blend-mode:normal;text-decoration-color:#000000;text-decoration-line:none;text-decoration-style:solid;text-indent:0;text-transform:none;white-space:normal"/>
    <path id="path4353-1-6-1-3-5-1-9" d="m217 907.36 6 6" fill="none" stroke="#fff" stroke-width="2.482"/>
@@ -143,6 +149,10 @@
    <path id="path580" d="m1.07 4.41h9.42c0.9234-0.0066 1.8391 0.16957 2.6941 0.5184 0.8551 0.34883 1.6327 0.8634 2.288 1.5141s1.1754 1.4246 1.5303 2.2771c0.3549 0.85256 0.5376 1.767 0.5376 2.6904 0.0067 0.9277-0.1712 1.8474-0.5231 2.7058-0.3519 0.8583-0.871 1.6382-1.527 2.2941-0.656 0.656-1.4358 1.1751-2.2941 1.527-0.8584 0.352-1.7781 0.5298-2.7058 0.5231h-9.42"/>
    <path id="path582" d="m4.75 8.45-4.04-4.05 4.04-4.05"/>
   </g>
+  <g id="undo-5" transform="matrix(-.71301 0 0 .66261 90.012 938.13)" clip-path="url(#clip0_241_10857-3)" fill="none" stroke="#f2f2f2" stroke-miterlimit="10" stroke-width="1.4549">
+   <path id="path580-3" d="m1.07 4.41h9.42c0.9234-0.0066 1.8391 0.16957 2.6941 0.5184 0.8551 0.34883 1.6327 0.8634 2.288 1.5141s1.1754 1.4246 1.5303 2.2771c0.3549 0.85256 0.5376 1.767 0.5376 2.6904 0.0067 0.9277-0.1712 1.8474-0.5231 2.7058-0.3519 0.8583-0.871 1.6382-1.527 2.2941-0.656 0.656-1.4358 1.1751-2.2941 1.527-0.8584 0.352-1.7781 0.5298-2.7058 0.5231h-9.42"/>
+   <path id="path582-5" d="m4.75 8.45-4.04-4.05 4.04-4.05"/>
+  </g>
   <g id="g1" transform="translate(144 -24)" fill="none" stroke="#999">
    <path id="path438" d="m9 849.94v4.05c0 0.20708 0.1679 0.375 0.375 0.375h5.25c0.20708 0 0.375-0.16792 0.375-0.375v-4.05c0-0.20708-0.16792-0.375-0.375-0.375h-5.25c-0.2071 0-0.375 0.16792-0.375 0.375z"/>
    <path id="save" d="m15.213 842.36h-8.8376c-0.2071 0-0.375 0.1679-0.375 0.37499v11.25c0 0.20708 0.1679 0.375 0.375 0.375h11.25c0.20708 0 0.375-0.16792 0.375-0.375v-8.6766c0-0.0953-0.0363-0.18697-0.1014-0.25648l-2.4124-2.5733c-0.07095-0.0756-0.16995-0.11853-0.2736-0.11853z"/>

umap/static/umap/img/source/16-white.svg

@@ -21,8 +21,11 @@
     <clipPath id="clip0_3071_861">
       <rect width="18" height="20" fill="#ffffff" id="rect3" x="0" y="0" />
     </clipPath>
+    <clipPath id="clip0_241_10857-3">
+      <rect width="18.049999" height="19.01" fill="#ffffff" id="rect586-6" x="0" y="0" />
+    </clipPath>
   </defs>
-  <sodipodi:namedview id="base" pagecolor="#ffffff" bordercolor="#666666" borderopacity="1.0" inkscape:pageopacity="0.0" inkscape:pageshadow="2" inkscape:zoom="22.311152" inkscape:cx="196.69536" inkscape:cy="36.932203" inkscape:document-units="px" inkscape:current-layer="layer1" showgrid="true" inkscape:window-width="1920" inkscape:window-height="1011" inkscape:window-x="0" inkscape:window-y="0" inkscape:window-maximized="1" showguides="true" inkscape:guide-bbox="true" inkscape:snap-grids="true" inkscape:snap-to-guides="true" inkscape:showpageshadow="2" inkscape:pagecheckerboard="0" inkscape:deskcolor="#d1d1d1">
+  <sodipodi:namedview id="base" pagecolor="#ffffff" bordercolor="#666666" borderopacity="1.0" inkscape:pageopacity="0.0" inkscape:pageshadow="2" inkscape:zoom="4.4320814" inkscape:cx="116.08541" inkscape:cy="109.65503" inkscape:document-units="px" inkscape:current-layer="layer1" showgrid="true" inkscape:window-width="1920" inkscape:window-height="1011" inkscape:window-x="0" inkscape:window-y="0" inkscape:window-maximized="1" showguides="true" inkscape:guide-bbox="true" inkscape:snap-grids="true" inkscape:snap-to-guides="true" inkscape:showpageshadow="2" inkscape:pagecheckerboard="0" inkscape:deskcolor="#d1d1d1">
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   </sodipodi:namedview>
@@ -78,9 +81,12 @@
       </g>
     </g>
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-    <g id="g4244" transform="matrix(0.51357238,-0.54309229,0.54309229,0.51357238,-518.0199,506.22551)">
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@@ -154,6 +160,10 @@
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       <path d="m 4.75002,8.44998 -4.039998,-4.05 4.039998,-4.050004" stroke="#f2f2f2" stroke-miterlimit="10" id="path582" style="fill:none;stroke:#f2f2f2;stroke-width:1.45486;stroke-linecap:butt;stroke-linejoin:miter;stroke-dasharray:none;stroke-opacity:1" />
     </g>
+    <g clip-path="url(#clip0_241_10857-3)" id="undo-5" transform="matrix(-0.71300568,0,0,0.66260978,90.012499,938.13028)" style="fill:none;stroke:#f2f2f2;stroke-width:1.45488;stroke-linecap:butt;stroke-linejoin:miter;stroke-dasharray:none;stroke-opacity:1">
+      <path d="m 1.07001,4.41003 h 9.41999 c 0.9234,-0.0066 1.8391,0.16957 2.6941,0.5184 0.8551,0.34883 1.6327,0.8634 2.288,1.51407 0.6553,0.65067 1.1754,1.42458 1.5303,2.27713 0.3549,0.85256 0.5376,1.76697 0.5376,2.69037 0.0067,0.9277 -0.1712,1.8474 -0.5231,2.7058 -0.3519,0.8583 -0.871,1.6382 -1.527,2.2941 -0.656,0.656 -1.4358,1.1751 -2.2941,1.527 -0.8584,0.352 -1.7781,0.5298 -2.7058,0.5231 h -9.41999" stroke="#f2f2f2" stroke-miterlimit="10" id="path580-3" style="fill:none;stroke:#f2f2f2;stroke-width:1.45486;stroke-linecap:butt;stroke-linejoin:miter;stroke-dasharray:none;stroke-opacity:1" />
+      <path d="m 4.75002,8.44998 -4.039998,-4.05 4.039998,-4.050004" stroke="#f2f2f2" stroke-miterlimit="10" id="path582-5" style="fill:none;stroke:#f2f2f2;stroke-width:1.45486;stroke-linecap:butt;stroke-linejoin:miter;stroke-dasharray:none;stroke-opacity:1" />
+    </g>
     <g id="g1" transform="translate(144,-24.00004)">
       <path d="m 9,849.93721 v 4.04997 c 0,0.20708 0.167895,0.375 0.375,0.375 h 5.25 c 0.207075,0 0.375,-0.16792 0.375,-0.375 v -4.04997 c 0,-0.20708 -0.167925,-0.375 -0.375,-0.375 h -5.25 c -0.207105,0 -0.375,0.16792 -0.375,0.375 z" stroke="#f2f2f2" id="path438" style="fill:none;stroke:#999999;stroke-width:0.999997;stroke-opacity:1" />
       <path d="m 15.21255,842.36218 h -8.83755 c -0.207105,0 -0.375,0.1679 -0.375,0.37499 v 11.24993 c 0,0.20708 0.167895,0.375 0.375,0.375 h 11.25 c 0.207075,0 0.375,-0.16792 0.375,-0.375 v -8.67664 c 0,-0.0953 -0.0363,-0.18697 -0.1014,-0.25648 l -2.41245,-2.57327 c -0.07095,-0.0756 -0.16995,-0.11853 -0.2736,-0.11853 z" stroke="#f2f2f2" id="save" style="fill:none;stroke:#999999;stroke-width:0.999997;stroke-opacity:1" />

umap/static/umap/js/modules/data/features.js

@@ -91,6 +91,7 @@ class Feature {
   }
 
   set geometry(value) {
+    this._geometry_bk = Utils.CopyJSON(this._geometry)
     this._geometry = value
     this.pushGeometry()
   }
@@ -104,13 +105,15 @@ class Feature {
   }
 
   pullGeometry(sync = true) {
+    const oldGeometry = Utils.CopyJSON(this._geometry)
     this.fromLatLngs(this._getLatLngs())
     if (sync) {
-      this.sync.update('geometry', this.geometry)
+      this.sync.update('geometry', this.geometry, oldGeometry)
     }
   }
 
   fromLatLngs(latlngs) {
+    this._geometry_bk = Utils.CopyJSON(this._geometry)
     this._geometry = this.convertLatLngs(latlngs)
   }
 
@@ -145,8 +148,15 @@ class Feature {
   onCommit() {
     // When the layer is a remote layer, we don't want to sync the creation of the
     // points via the websocket, as the other peers will get them themselves.
+    const oldGeoJSON = this._just_married ? null : Utils.CopyJSON(this.toGeoJSON())
+    this.pullGeometry(false)
     if (this.datalayer?.isRemoteLayer()) return
-    this.sync.upsert(this.toGeoJSON())
+    if (this._just_married) {
+      this.sync.upsert(this.toGeoJSON(), null)
+      this._just_married = false
+    } else {
+      this.sync.update('geometry', this.geometry, this._geometry_bk)
+    }
   }
 
   isReadOnly() {

umap/static/umap/js/modules/data/layer.js

@@ -18,7 +18,6 @@ import { translate } from '../i18n.js'
 import { DataLayerPermissions } from '../permissions.js'
 import { Point, LineString, Polygon } from './features.js'
 import TableEditor from '../tableeditor.js'
-import { ServerStored } from '../saving.js'
 import * as Schema from '../schema.js'
 import { MutatingForm } from '../form/builder.js'
 
@@ -36,9 +35,8 @@ const LAYER_MAP = LAYER_TYPES.reduce((acc, klass) => {
   return acc
 }, {})
 
-export class DataLayer extends ServerStored {
+export class DataLayer {
   constructor(umap, leafletMap, data = {}) {
-    super()
     this._umap = umap
     this.sync = umap.syncEngine.proxy(this)
     this._index = Array()
@@ -49,7 +47,6 @@ export class DataLayer extends ServerStored {
     this._leafletMap = leafletMap
     this.parentPane = this._leafletMap.getPane('overlayPane')
     this.pane = this._leafletMap.createPane(`datalayer${stamp(this)}`, this.parentPane)
-    this.pane.dataset.id = stamp(this)
     // FIXME: should be on layer
     this.renderer = L.svg({ pane: this.pane })
     this.defaultOptions = {
@@ -66,6 +63,7 @@ export class DataLayer extends ServerStored {
     data.id = data.id || crypto.randomUUID()
 
     this.setOptions(data)
+    this.pane.dataset.id = this.id
 
     if (!Utils.isObject(this.options.remoteData)) {
       this.options.remoteData = {}
@@ -114,7 +112,6 @@ export class DataLayer extends ServerStored {
 
   set isDeleted(status) {
     this._isDeleted = status
-    if (status) this.isDirty = status
   }
 
   get isDeleted() {
@@ -269,13 +266,11 @@ export class DataLayer extends ServerStored {
   }
 
   clear() {
-    this.layer.clearLayers()
+    this.sync.startBatch()
-    this._features = {}
+    for (const feature of Object.values(this._features)) {
-    this._index = Array()
+      feature.del()
-    if (this._geojson) {
-      this.backupData()
-      this._geojson = null
     }
+    this.sync.commitBatch()
     this.dataChanged()
   }
 
@@ -366,9 +361,8 @@ export class DataLayer extends ServerStored {
   }
 
   connectToMap() {
-    const id = stamp(this)
+    if (!this._umap.datalayers[this.id]) {
-    if (!this._umap.datalayers[id]) {
+      this._umap.datalayers[this.id] = this
-      this._umap.datalayers[id] = this
     }
     if (!this._umap.datalayersIndex.includes(this)) {
       this._umap.datalayersIndex.push(this)
@@ -417,7 +411,10 @@ export class DataLayer extends ServerStored {
 
   removeFeature(feature, sync) {
     const id = stamp(feature)
-    if (sync !== false) feature.sync.delete()
+    if (sync !== false) {
+      const oldValue = feature.toGeoJSON()
+      feature.sync.delete(oldValue)
+    }
     this.hideFeature(feature)
     delete this._umap.featuresIndex[feature.getSlug()]
     feature.disconnectFromDataLayer(this)
@@ -460,7 +457,10 @@ export class DataLayer extends ServerStored {
     try {
       // Do not fail if remote data is somehow invalid,
       // otherwise the layer becomes uneditable.
-      return this.makeFeatures(geojson, sync)
+      this.sync.startBatch()
+      const features = this.makeFeatures(geojson, sync)
+      this.sync.commitBatch()
+      return features
     } catch (err) {
       console.debug('Error with DataLayer', this.id)
       console.error(err)
@@ -518,7 +518,7 @@ export class DataLayer extends ServerStored {
     }
     if (feature && !feature.isEmpty()) {
       this.addFeature(feature)
-      if (sync) feature.onCommit()
+      if (sync) feature.sync.upsert(feature.toGeoJSON(), null)
       return feature
     }
   }
@@ -527,10 +527,6 @@ export class DataLayer extends ServerStored {
     return this._umap.formatter
       .parse(raw, format)
       .then((geojson) => this.addData(geojson))
-      .then((data) => {
-        if (data?.length) this.isDirty = true
-        return data
-      })
       .catch((error) => {
         console.debug(error)
         Alert.error(translate('Import failed: invalid data'))
@@ -596,17 +592,17 @@ export class DataLayer extends ServerStored {
   }
 
   del(sync = true) {
+    const oldValue = Utils.CopyJSON(this.umapGeoJSON())
     this.erase()
     if (sync) {
       this.isDeleted = true
-      this.sync.delete()
+      this.sync.delete(oldValue)
     }
   }
 
   empty() {
     if (this.isRemoteLayer()) return
     this.clear()
-    this.isDirty = true
   }
 
   clone() {
@@ -630,25 +626,6 @@ export class DataLayer extends ServerStored {
     this.clear()
   }
 
-  reset() {
-    if (!this.createdOnServer) {
-      this.erase()
-      return
-    }
-
-    this.resetOptions()
-    this.parentPane.appendChild(this.pane)
-    if (this._leaflet_events_bk && !this._leaflet_events) {
-      this._leaflet_events = this._leaflet_events_bk
-    }
-    this.clear()
-    this.hide()
-    if (this.isRemoteLayer()) this.fetchRemoteData()
-    else if (this._geojson_bk) this.fromGeoJSON(this._geojson_bk)
-    this.show()
-    this.isDirty = false
-  }
-
   redraw() {
     if (!this.isVisible()) return
     this.eachFeature((feature) => feature.redraw())
@@ -940,11 +917,14 @@ export class DataLayer extends ServerStored {
         )
         if (!error) {
           if (geojson._storage) geojson._umap_options = geojson._storage // Retrocompat.
-          if (geojson._umap_options) this.setOptions(geojson._umap_options)
+          if (geojson._umap_options) {
+            const oldOptions = Utils.CopyJSON(this.options)
+            this.setOptions(geojson._umap_options)
+            this.sync.update('options', this.options, oldOptions)
+          }
           this.empty()
           if (this.isRemoteLayer()) this.fetchRemoteData()
           else this.addData(geojson)
-          this.isDirty = true
         }
       })
   }
@@ -1092,7 +1072,11 @@ export class DataLayer extends ServerStored {
 
   setReferenceVersion({ response, sync }) {
     this._referenceVersion = response.headers.get('X-Datalayer-Version')
-    if (sync) this.sync.update('_referenceVersion', this._referenceVersion)
+    if (sync) {
+      this.sync.update('_referenceVersion', this._referenceVersion, null, {
+        undo: false,
+      })
+    }
   }
 
   async save() {
@@ -1121,6 +1105,10 @@ export class DataLayer extends ServerStored {
   }
 
   async _trySave(url, headers, formData) {
+    if (this._forceSave) {
+      headers = {}
+      this._forceSave = false
+    }
     const [data, response, error] = await this._umap.server.post(url, headers, formData)
     if (error) {
       if (response && response.status === 412) {
@@ -1130,15 +1118,8 @@ export class DataLayer extends ServerStored {
               'This situation is tricky, you have to choose carefully which version is pertinent.'
           ),
           async () => {
-            // Save again this layer
+            this._forceSave = true
-            const status = await this._trySave(url, {}, formData)
+            await this._umap.saveAll()
-            if (status) {
-              this.isDirty = false
-
-              // Call the main save, in case something else needs to be saved
-              // as the conflict stopped the saving flow
-              await this._umap.saveAll()
-            }
           }
         )
       }
@@ -1173,7 +1154,7 @@ export class DataLayer extends ServerStored {
   }
 
   commitDelete() {
-    delete this._umap.datalayers[stamp(this)]
+    delete this._umap.datalayers[this.id]
   }
 
   getName() {

umap/static/umap/js/modules/facets.js

@@ -135,7 +135,13 @@ export default class Facets {
     for (const [property, { label, type }] of parsed) {
       dumped.push([property, label, type].filter(Boolean).join('|'))
     }
-    return dumped.join(',')
+    const oldValue = this._umap.properties.facetKey
+    this._umap.properties.facetKey = dumped.join(',')
+    this._umap.sync.update(
+      'properties.facetKey',
+      this._umap.properties.facetKey,
+      oldValue
+    )
   }
 
   has(property) {
@@ -146,15 +152,13 @@ export default class Facets {
     const defined = this.getDefined()
     if (!defined.has(property)) {
       defined.set(property, { label, type })
-      this._umap.properties.facetKey = this.dumps(defined)
+      this.dumps(defined)
-      this._umap.isDirty = true
     }
   }
 
   remove(property) {
     const defined = this.getDefined()
     defined.delete(property)
-    this._umap.properties.facetKey = this.dumps(defined)
+    this.dumps(defined)
-    this._umap.isDirty = true
   }
 }

umap/static/umap/js/modules/form/builder.js

@@ -70,21 +70,7 @@ export class Form extends Utils.WithEvents {
   }
 
   setter(field, value) {
-    const path = field.split('.')
+    Utils.setObjectValue(this.obj, field, value)
-    let obj = this.obj
-    let what
-    for (let i = 0, l = path.length; i < l; i++) {
-      what = path[i]
-      if (what === path[l - 1]) {
-        if (typeof value === 'undefined') {
-          delete obj[what]
-        } else {
-          obj[what] = value
-        }
-      } else {
-        obj = obj[what]
-      }
-    }
   }
 
   restoreField(field) {
@@ -190,13 +176,17 @@ export class MutatingForm extends Form {
   }
 
   setter(field, value) {
-    super.setter(field, value)
+    const oldValue = this.getter(field)
-    this.obj.isDirty = true
+    if ('setter' in this.obj) {
+      this.obj.setter(field, value)
+    } else {
+      super.setter(field, value)
+    }
     if ('render' in this.obj) {
       this.obj.render([field], this)
     }
     if ('sync' in this.obj) {
-      this.obj.sync.update(field, value)
+      this.obj.sync.update(field, value, oldValue)
     }
   }
 

umap/static/umap/js/modules/form/fields.js

@@ -541,14 +541,14 @@ Fields.DataLayerSwitcher = class extends Fields.Select {
         !datalayer.isDataReadOnly() &&
         datalayer.isBrowsable()
       ) {
-        options.push([L.stamp(datalayer), datalayer.getName()])
+        options.push([datalayer.id, datalayer.getName()])
       }
     })
     return options
   }
 
   toHTML() {
-    return L.stamp(this.obj.datalayer)
+    return this.obj.datalayer.id
   }
 
   toJS() {

umap/static/umap/js/modules/importer.js

@@ -249,7 +249,7 @@ export default class Importer extends Utils.WithTemplate {
           tagName: 'option',
           parent: layerSelect,
           textContent: datalayer.options.name,
-          value: L.stamp(datalayer),
+          value: datalayer.id,
         })
       }
     })

umap/static/umap/js/modules/permissions.js

@@ -1,18 +1,16 @@
 import { DomUtil } from '../../vendors/leaflet/leaflet-src.esm.js'
 import { translate } from './i18n.js'
 import { uMapAlert as Alert } from '../components/alerts/alert.js'
-import { ServerStored } from './saving.js'
 import * as Utils from './utils.js'
 import { MutatingForm } from './form/builder.js'
 
 // Dedicated object so we can deal with a separate dirty status, and thus
 // call the endpoint only when needed, saving one call at each save.
-export class MapPermissions extends ServerStored {
+export class MapPermissions {
   constructor(umap) {
-    super()
     this.setProperties(umap.properties.permissions)
     this._umap = umap
-    this._isDirty = false
+    this.sync = umap.syncEngine.proxy(this)
   }
 
   setProperties(properties) {
@@ -28,6 +26,13 @@ export class MapPermissions extends ServerStored {
     )
   }
 
+  getSyncMetadata() {
+    return {
+      subject: 'mappermissions',
+      metadata: {},
+    }
+  }
+
   render() {
     this._umap.render(['properties.permissions'])
   }
@@ -188,7 +193,6 @@ export class MapPermissions extends ServerStored {
   }
 
   async save() {
-    if (!this.isDirty) return
     const formData = new FormData()
     if (!this.isAnonymousMap() && this.properties.editors) {
       const editors = this.properties.editors.map((u) => u.id)
@@ -247,9 +251,8 @@ export class MapPermissions extends ServerStored {
   }
 }
 
-export class DataLayerPermissions extends ServerStored {
+export class DataLayerPermissions {
   constructor(umap, datalayer) {
-    super()
     this._umap = umap
     this.properties = Object.assign(
       {
@@ -259,6 +262,14 @@ export class DataLayerPermissions extends ServerStored {
     )
 
     this.datalayer = datalayer
+    this.sync = umap.syncEngine.proxy(this)
+  }
+
+  getSyncMetadata() {
+    return {
+      subject: 'datalayerpermissions',
+      metadata: { id: this.datalayer.id },
+    }
   }
 
   edit(container) {
@@ -289,7 +300,6 @@ export class DataLayerPermissions extends ServerStored {
   }
 
   async save() {
-    if (!this.isDirty) return
     const formData = new FormData()
     formData.append('edit_status', this.properties.edit_status)
     const [data, response, error] = await this._umap.server.post(

umap/static/umap/js/modules/rendering/layers/classified.js

@@ -117,7 +117,7 @@ export const Choropleth = FeatureGroup.extend({
   },
 
   _getValue: function (feature) {
-    const key = this.datalayer.options.choropleth.property || 'value'
+    const key = this.datalayer.options.choropleth?.property || 'value'
     const value = +feature.properties[key]
     if (!Number.isNaN(value)) return value
   },
@@ -130,12 +130,12 @@ export const Choropleth = FeatureGroup.extend({
       this.options.colors = []
       return
     }
-    const mode = this.datalayer.options.choropleth.mode
+    const mode = this.datalayer.options.choropleth?.mode
-    let classes = +this.datalayer.options.choropleth.classes || 5
+    let classes = +this.datalayer.options.choropleth?.classes || 5
     let breaks
     classes = Math.min(classes, values.length)
     if (mode === 'manual') {
-      const manualBreaks = this.datalayer.options.choropleth.breaks
+      const manualBreaks = this.datalayer.options.choropleth?.breaks
       if (manualBreaks) {
         breaks = manualBreaks
           .split(',')

umap/static/umap/js/modules/rendering/ui.js

@@ -97,7 +97,6 @@ const FeatureMixin = {
   },
 
   onCommit: function () {
-    this.feature.pullGeometry(false)
     this.feature.onCommit()
   },
 }
@@ -112,7 +111,7 @@ const PointMixin = {
     this.on('dragend', (event) => {
       this.isDirty = true
       this.feature.edit(event)
-      this.feature.pullGeometry(false)
+      // this.feature.pullGeometry(false)
     })
     if (!this.feature.isReadOnly()) this.on('mouseover', this._enableDragging)
     this.on('mouseout', this._onMouseOut)
@@ -303,13 +302,13 @@ const PathMixin = {
     this._container = null
     FeatureMixin.onAdd.call(this, map)
     this.setStyle()
-    if (this.editing?.enabled()) this.editing.addHooks()
+    if (this.editor?.enabled()) this.editor.addHooks()
     this.resetTooltip()
     this._path.dataset.feature = this.feature.id
   },
 
   onRemove: function (map) {
-    if (this.editing?.enabled()) this.editing.removeHooks()
+    if (this.editor?.enabled()) this.editor.removeHooks()
     FeatureMixin.onRemove.call(this, map)
   },
 
@@ -362,6 +361,13 @@ const PathMixin = {
   isOnScreen: function (bounds) {
     return bounds.overlaps(this.getBounds())
   },
+
+  _setLatLngs: function (latlngs) {
+    this.parentClass.prototype._setLatLngs.call(this, latlngs)
+    if (this.editor?.enabled()) {
+      this.editor.reset()
+    }
+  },
 }
 
 export const LeafletPolyline = Polyline.extend({

umap/static/umap/js/modules/rules.js

@@ -17,20 +17,10 @@ class Rule {
     this.parse()
   }
 
-  get isDirty() {
-    return this._isDirty
-  }
-
-  set isDirty(status) {
-    this._isDirty = status
-    if (status) this._umap.isDirty = status
-  }
-
   constructor(umap, condition = '', options = {}) {
     // TODO make this public properties when browser coverage is ok
     // cf https://caniuse.com/?search=public%20class%20field
     this._condition = null
-    this._isDirty = false
     this.OPERATORS = [
       ['>', this.gt],
       ['<', this.lt],
@@ -190,17 +180,25 @@ class Rule {
 
   _delete() {
     this._umap.rules.rules = this._umap.rules.rules.filter((rule) => rule !== this)
+    this._umap.rules.commit()
+  }
+
+  setter(key, value) {
+    const oldRules = Utils.CopyJSON(this._umap.properties.rules || {})
+    Utils.setObjectValue(this, key, value)
+    this._umap.rules.commit()
+    this._umap.sync.update('properties.rules', this._umap.properties.rules, oldRules)
   }
 }
 
 export default class Rules {
   constructor(umap) {
     this._umap = umap
-    this.rules = []
     this.load()
   }
 
   load() {
+    this.rules = []
     if (!this._umap.properties.rules?.length) return
     for (const { condition, options } of this._umap.properties.rules) {
       if (!condition) continue
@@ -222,8 +220,8 @@ export default class Rules {
     else if (finalIndex > initialIndex) newIdx = referenceIdx
     else newIdx = referenceIdx + 1
     this.rules.splice(newIdx, 0, moved)
-    moved.isDirty = true
     this._umap.render(['rules'])
+    this.commit()
   }
 
   edit(container) {
@@ -242,7 +240,6 @@ export default class Rules {
 
   addRule() {
     const rule = new Rule(this._umap)
-    rule.isDirty = true
     this.rules.push(rule)
     rule.edit(map)
   }

umap/static/umap/js/modules/saving.js

@@ -1,52 +0,0 @@
-const _queue = new Set()
-
-export let isDirty = false
-
-export async function save() {
-  for (const obj of _queue) {
-    const ok = await obj.save()
-    if (!ok) break
-    remove(obj)
-  }
-}
-
-export function clear() {
-  _queue.clear()
-  onUpdate()
-}
-
-function add(obj) {
-  _queue.add(obj)
-  onUpdate()
-}
-
-function remove(obj) {
-  _queue.delete(obj)
-  onUpdate()
-}
-
-function has(obj) {
-  return _queue.has(obj)
-}
-
-function onUpdate() {
-  isDirty = Boolean(_queue.size)
-  document.body.classList.toggle('umap-is-dirty', isDirty)
-}
-
-export class ServerStored {
-  set isDirty(status) {
-    if (status) {
-      add(this)
-    } else {
-      remove(this)
-    }
-    this.onDirty(status)
-  }
-
-  get isDirty() {
-    return has(this)
-  }
-
-  onDirty(status) {}
-}

umap/static/umap/js/modules/schema.js

@@ -44,6 +44,10 @@ export const SCHEMA = {
     type: Object,
     impacts: ['data'],
   },
+  center: {
+    type: Object,
+    impacts: [], // default center, doesn't need any update of the map
+  },
   color: {
     type: String,
     impacts: ['data'],
@@ -118,6 +122,9 @@ export const SCHEMA = {
     default: false,
     label: translate('Animated transitions'),
   },
+  edit_status: {
+    type: Number,
+  },
   editinosmControl: {
     type: Boolean,
     impacts: ['ui'],
@@ -125,6 +132,9 @@ export const SCHEMA = {
     label: translate('Display the control to open OpenStreetMap editor'),
     default: null,
   },
+  editors: {
+    type: Array,
+  },
   embedControl: {
     type: Boolean,
     impacts: ['ui'],
@@ -362,6 +372,9 @@ export const SCHEMA = {
     type: Object,
     impacts: ['background'],
   },
+  owner: {
+    type: Object,
+  },
   permanentCredit: {
     type: 'Text',
     impacts: ['ui'],
@@ -436,6 +449,9 @@ export const SCHEMA = {
     label: translate('Display the search control'),
     default: true,
   },
+  share_status: {
+    type: Number,
+  },
   shortCredit: {
     type: String,
     impacts: ['ui'],
@@ -500,6 +516,9 @@ export const SCHEMA = {
     helpEntries: ['sync'],
     default: false,
   },
+  team: {
+    type: Object,
+  },
   tilelayer: {
     type: Object,
     impacts: ['background'],
@@ -566,7 +585,6 @@ export const SCHEMA = {
     type: Object,
     impacts: ['data'],
   },
-
   _referenceVersion: {
     type: Number,
     impacts: ['data'],

umap/static/umap/js/modules/sync/engine.js

@@ -1,8 +1,14 @@
 import * as Utils from '../utils.js'
 import { HybridLogicalClock } from './hlc.js'
-import { DataLayerUpdater, FeatureUpdater, MapUpdater } from './updaters.js'
+import {
+  DataLayerUpdater,
+  FeatureUpdater,
+  MapUpdater,
+  MapPermissionsUpdater,
+  DataLayerPermissionsUpdater,
+} from './updaters.js'
 import { WebSocketTransport } from './websocket.js'
-import * as SaveManager from '../saving.js'
+import { UndoManager } from './undo.js'
 
 // Start reconnecting after 2 seconds, then double the delay each time
 // maxing out at 32 seconds.
@@ -55,6 +61,8 @@ export class SyncEngine {
       map: new MapUpdater(umap),
       feature: new FeatureUpdater(umap),
       datalayer: new DataLayerUpdater(umap),
+      mappermissions: new MapPermissionsUpdater(umap),
+      datalayerpermissions: new DataLayerPermissionsUpdater(umap),
     }
     this.transport = undefined
     this._operations = new Operations()
@@ -64,6 +72,7 @@ export class SyncEngine {
     this.websocketConnected = false
     this.closeRequested = false
     this.peerId = Utils.generateId()
+    this._undoManager = new UndoManager(umap, this.updaters, this)
   }
 
   get isOpen() {
@@ -122,16 +131,107 @@ export class SyncEngine {
       await this.authenticate()
     }, this._reconnectDelay)
   }
-  upsert(subject, metadata, value) {
+
-    this._send({ verb: 'upsert', subject, metadata, value })
+  startBatch() {
+    this._batch = []
   }
 
-  update(subject, metadata, key, value) {
+  commitBatch(subject, metadata) {
-    this._send({ verb: 'update', subject, metadata, key, value })
+    if (!this._batch.length) {
+      this._batch = null
+      return
+    }
+    const operations = this._batch.map((stage) => stage.operation)
+    const operation = { verb: 'batch', operations, subject, metadata }
+    this._undoManager.add({ operation, stages: this._batch })
+    this._send(operation)
+    this._batch = null
   }
 
-  delete(subject, metadata, key) {
+  upsert(subject, metadata, value, oldValue) {
-    this._send({ verb: 'delete', subject, metadata, key })
+    const operation = {
+      verb: 'upsert',
+      subject,
+      metadata,
+      value,
+    }
+    const stage = {
+      operation,
+      newValue: value,
+      oldValue: oldValue,
+    }
+    if (this._batch) {
+      this._batch.push(stage)
+      return
+    }
+    this._undoManager.add(stage)
+    this._send(operation)
+  }
+
+  update(subject, metadata, key, value, oldValue, { undo } = { undo: true }) {
+    const operation = {
+      verb: 'update',
+      subject,
+      metadata,
+      key,
+      value,
+    }
+    const stage = {
+      operation,
+      oldValue: oldValue,
+      newValue: value,
+    }
+    if (this._batch) {
+      this._batch.push(stage)
+      return
+    }
+    if (undo) this._undoManager.add(stage)
+    this._send(operation)
+  }
+
+  delete(subject, metadata, oldValue) {
+    const operation = {
+      verb: 'delete',
+      subject,
+      metadata,
+    }
+    const stage = {
+      operation,
+      oldValue: oldValue,
+    }
+    if (this._batch) {
+      this._batch.push(stage)
+      return
+    }
+    this._undoManager.add(stage)
+    this._send(operation)
+  }
+
+  async save() {
+    const needSave = new Map()
+    if (!this._umap.id) {
+      // There is no operation for first map save
+      needSave.set(this._umap, [])
+    }
+    for (const operation of this._operations.sorted()) {
+      if (operation.dirty) {
+        const updater = this._getUpdater(operation.subject)
+        const obj = updater.getStoredObject(operation.metadata)
+        if (!needSave.has(obj)) {
+          needSave.set(obj, [])
+        }
+        needSave.get(obj).push(operation)
+      }
+    }
+    for (const [obj, operations] of needSave.entries()) {
+      const ok = await obj.save()
+      if (!ok) break
+      for (const operation of operations) {
+        operation.dirty = false
+      }
+    }
+    this.saved()
+    this._undoManager.toggleState()
   }
 
   saved() {
@@ -144,8 +244,8 @@ export class SyncEngine {
     }
   }
 
-  _send(inputMessage) {
+  _send(operation) {
-    const message = this._operations.addLocal(inputMessage)
+    const message = this._operations.addLocal(operation)
 
     if (this.offline) return
     if (this.transport) {
@@ -153,7 +253,11 @@ export class SyncEngine {
     }
   }
 
-  _getUpdater(subject, metadata) {
+  _getUpdater(subject, metadata, sync) {
+    // For now, prevent permissions to be synced, for security reasons
+    if (sync && (subject === 'mappermissions' || subject === 'datalayerpermissions')) {
+      return
+    }
     if (Object.keys(this.updaters).includes(subject)) {
       return this.updaters[subject]
     }
@@ -161,7 +265,15 @@ export class SyncEngine {
   }
 
   _applyOperation(operation) {
+    if (operation.verb === 'batch') {
+      operation.operations.map((op) => this._applyOperation(op))
+      return
+    }
     const updater = this._getUpdater(operation.subject, operation.metadata)
+    if (!updater) {
+      debug('No updater for', operation)
+      return
+    }
     updater.applyMessage(operation)
   }
 
@@ -304,9 +416,8 @@ export class SyncEngine {
 
   onSavedMessage({ sender, lastKnownHLC }) {
     debug(`received saved message from peer ${sender}`, lastKnownHLC)
-    if (lastKnownHLC === this._operations.getLastKnownHLC() && SaveManager.isDirty) {
+    this._operations.saved(lastKnownHLC)
-      SaveManager.clear()
+    this._undoManager.toggleState()
-    }
   }
 
   /**
@@ -356,7 +467,7 @@ export class SyncEngine {
     const handler = {
       get(target, prop) {
         // Only proxy these methods
-        if (['upsert', 'update', 'delete'].includes(prop)) {
+        if (['upsert', 'update', 'delete', 'commitBatch'].includes(prop)) {
           const { subject, metadata } = object.getSyncMetadata()
           // Reflect.get is calling the original method.
           // .bind is adding the parameters automatically
@@ -378,16 +489,22 @@ export class Operations {
     this._operations = new Array()
   }
 
+  saved(hlc) {
+    for (const operation of this.getOperationsBefore(hlc)) {
+      operation.dirty = false
+    }
+  }
+
   /**
    * Tick the clock and store the passed message in the operations list.
    *
    * @param {*} inputMessage
    * @returns {*} clock-aware message
    */
-  addLocal(inputMessage) {
+  addLocal(operation) {
-    const message = { ...inputMessage, hlc: this._hlc.tick() }
+    operation.hlc = this._hlc.tick()
-    this._operations.push(message)
+    this._operations.push(operation)
-    return message
+    return operation
   }
 
   /**
@@ -445,6 +562,11 @@ export class Operations {
     return this._operations.filter((op) => op.hlc > hlc)
   }
 
+  getOperationsBefore(hlc) {
+    if (!hlc) return this._operations
+    return this._operations.filter((op) => op.hlc <= hlc)
+  }
+
   /**
    * Returns the last known HLC value.
    */

umap/static/umap/js/modules/sync/undo.js

@@ -0,0 +1,101 @@
+import * as Utils from '../utils.js'
+import { DataLayerUpdater, FeatureUpdater, MapUpdater } from './updaters.js'
+
+export class UndoManager {
+  constructor(umap, updaters, syncEngine) {
+    this._umap = umap
+    this._syncEngine = syncEngine
+    this.updaters = updaters
+    this._undoStack = []
+    this._redoStack = []
+  }
+
+  toggleState() {
+    // document is undefined during unittests
+    if (typeof document === 'undefined') return
+    const undoButton = document.querySelector('.edit-undo')
+    const redoButton = document.querySelector('.edit-redo')
+    if (undoButton) undoButton.disabled = !this._undoStack.length
+    if (redoButton) redoButton.disabled = !this._redoStack.length
+    const dirty = this.isDirty()
+    document.body.classList.toggle('umap-is-dirty', dirty)
+    for (const button of document.querySelectorAll('.disabled-on-dirty')) {
+      button.disabled = dirty
+    }
+    for (const button of document.querySelectorAll('.enabled-on-dirty')) {
+      button.disabled = !dirty
+    }
+  }
+
+  isDirty() {
+    if (!this._umap.id) return true
+    for (const stage of this._undoStack) {
+      if (stage.operation.dirty) return true
+    }
+    for (const stage of this._redoStack) {
+      if (stage.operation.dirty) return true
+    }
+    return false
+  }
+
+  add(stage) {
+    stage.operation.dirty = true
+    this._redoStack = []
+    this._undoStack.push(stage)
+    this.toggleState()
+  }
+
+  copyOperation(stage, redo) {
+    const operation = Utils.CopyJSON(stage.operation)
+    const value = redo ? stage.newValue : stage.oldValue
+    operation.value = value
+    if (['delete', 'upsert'].includes(operation.verb)) {
+      operation.verb = value === null || value === undefined ? 'delete' : 'upsert'
+    }
+    return operation
+  }
+
+  undo(redo = false) {
+    const fromStack = redo ? this._redoStack : this._undoStack
+    const toStack = redo ? this._undoStack : this._redoStack
+    const stage = fromStack.pop()
+    if (!stage) return
+    stage.operation.dirty = !stage.operation.dirty
+    if (stage.operation.verb === 'batch') {
+      for (const st of stage.stages) {
+        this.applyOperation(this.copyOperation(st, redo))
+      }
+    } else {
+      this.applyOperation(this.copyOperation(stage, redo))
+    }
+    toStack.push(stage)
+    this.toggleState()
+  }
+
+  redo() {
+    this.undo(true)
+  }
+
+  applyOperation(operation) {
+    const updater = this._getUpdater(operation.subject, operation.metadata)
+    switch (operation.verb) {
+      case 'update':
+        updater.update(operation)
+        break
+      case 'delete':
+        updater.delete(operation)
+        break
+      case 'upsert':
+        updater.upsert(operation)
+        break
+    }
+    this._syncEngine._send(operation)
+  }
+
+  _getUpdater(subject, metadata) {
+    if (Object.keys(this.updaters).includes(subject)) {
+      return this.updaters[subject]
+    }
+    throw new Error(`Unknown updater ${subject}, ${metadata}`)
+  }
+}

umap/static/umap/js/modules/sync/updaters.js

@@ -1,4 +1,4 @@
-import { fieldInSchema } from '../utils.js'
+import * as Utils from '../utils.js'
 
 /**
  * Updaters are classes able to convert messages
@@ -10,27 +10,6 @@ class BaseUpdater {
     this._umap = umap
   }
 
-  updateObjectValue(obj, key, value) {
-    const parts = key.split('.')
-    const lastKey = parts.pop()
-
-    // Reduce the current list of attributes,
-    // to find the object to set the property onto
-    const objectToSet = parts.reduce((currentObj, part) => {
-      if (currentObj !== undefined && part in currentObj) return currentObj[part]
-    }, obj)
-
-    // In case the given path doesn't exist, stop here
-    if (objectToSet === undefined) return
-
-    // Set the value (or delete it)
-    if (typeof value === 'undefined') {
-      delete objectToSet[lastKey]
-    } else {
-      objectToSet[lastKey] = value
-    }
-  }
-
   getDataLayerFromID(layerId) {
     return this._umap.getDataLayerByUmapId(layerId)
   }
@@ -43,13 +22,17 @@ class BaseUpdater {
 
 export class MapUpdater extends BaseUpdater {
   update({ key, value }) {
-    if (fieldInSchema(key)) {
+    if (Utils.fieldInSchema(key)) {
-      this.updateObjectValue(this._umap, key, value)
+      Utils.setObjectValue(this._umap, key, value)
     }
 
     this._umap.onPropertiesUpdated([key])
     this._umap.render([key])
   }
+
+  getStoredObject() {
+    return this._umap
+  }
 }
 
 export class DataLayerUpdater extends BaseUpdater {
@@ -58,14 +41,21 @@ export class DataLayerUpdater extends BaseUpdater {
     try {
       this.getDataLayerFromID(value.id)
     } catch {
-      this._umap.createDataLayer(value, false)
+      const datalayer = this._umap.createDataLayer(value._umap_options || value, false)
+      if (value.features) {
+        // FIXME: this will create new stages in the undoStack, thus this will empty
+        // the redoStack
+        datalayer.addData(value)
+      }
     }
   }
 
   update({ key, metadata, value }) {
     const datalayer = this.getDataLayerFromID(metadata.id)
-    if (fieldInSchema(key)) {
+    if (key === 'options') {
-      this.updateObjectValue(datalayer, key, value)
+      datalayer.setOptions(value)
+    } else if (Utils.fieldInSchema(key)) {
+      Utils.setObjectValue(datalayer, key, value)
     } else {
       console.debug(
         'Not applying update for datalayer because key is not in the schema',
@@ -82,6 +72,10 @@ export class DataLayerUpdater extends BaseUpdater {
       datalayer.commitDelete()
     }
   }
+
+  getStoredObject(metadata) {
+    return this.getDataLayerFromID(metadata.id)
+  }
 }
 
 export class FeatureUpdater extends BaseUpdater {
@@ -114,7 +108,7 @@ export class FeatureUpdater extends BaseUpdater {
       const feature = this.getFeatureFromMetadata(metadata)
       feature.geometry = value
     } else {
-      this.updateObjectValue(feature, key, value)
+      Utils.setObjectValue(feature, key, value)
       feature.datalayer.indexProperties(feature)
     }
 
@@ -127,4 +121,32 @@ export class FeatureUpdater extends BaseUpdater {
     const feature = this.getFeatureFromMetadata(metadata)
     if (feature) feature.del(false)
   }
+
+  getStoredObject(metadata) {
+    return this.getDataLayerFromID(metadata.layerId)
+  }
+}
+
+export class MapPermissionsUpdater extends BaseUpdater {
+  update({ key, value }) {
+    if (Utils.fieldInSchema(key)) {
+      Utils.setObjectValue(this._umap.permissions, key, value)
+    }
+  }
+
+  getStoredObject(metadata) {
+    return this._umap.permissions
+  }
+}
+
+export class DataLayerPermissionsUpdater extends BaseUpdater {
+  update({ key, value, metadata }) {
+    if (Utils.fieldInSchema(key)) {
+      Utils.setObjectValue(this.getDataLayerFromID(metadata.id), key, value)
+    }
+  }
+
+  getStoredObject(metadata) {
+    return this.getDataLayerFromID(metadata.id).permissions
+  }
 }

umap/static/umap/js/modules/ui/bar.js

@@ -22,15 +22,19 @@ const TOP_BAR_TEMPLATE = `
           <span class="username" data-ref="username"></span>
         </button>
         <button class="umap-help-link flat" type="button" title="${translate('Help')}" data-ref="help">${translate('Help')}</button>
-        <button class="edit-cancel round" type="button" data-ref="cancel">
+        <button class="edit-undo round" type="button" data-ref="undo" disabled>
-            <i class="icon icon-16 icon-restore"></i>
+            <i class="icon icon-16 icon-undo"></i>
-            <span class="">${translate('Cancel edits')}</span>
+            <span class="">${translate('Undo')}</span>
         </button>
-        <button class="edit-disable round" type="button" data-ref="view">
+        <button class="edit-redo round" type="button" data-ref="redo" disabled>
+            <i class="icon icon-16 icon-redo"></i>
+            <span class="">${translate('Redo')}</span>
+        </button>
+        <button class="edit-disable round disabled-on-dirty" type="button" data-ref="view">
             <i class="icon icon-16 icon-eye"></i>
             <span class="">${translate('View')}</span>
         </button>
-        <button class="edit-save button round" type="button" data-ref="save">
+        <button class="edit-save button round enabled-on-dirty" type="button" data-ref="save">
             <i class="icon icon-16 icon-save"></i>
             <i class="icon icon-16 icon-save-disabled"></i>
             <span hidden data-ref="saveLabel">${translate('Save')}</span>
@@ -118,11 +122,12 @@ export class TopBar extends WithTemplate {
     })
 
     this.elements.help.addEventListener('click', () => this._umap.help.showGetStarted())
-    this.elements.cancel.addEventListener('click', () => this._umap.askForReset())
+    this.elements.redo.addEventListener('click', () => this._umap.redo())
-    this.elements.cancel.addEventListener('mouseover', () => {
+    this.elements.undo.addEventListener('click', () => this._umap.undo())
+    this.elements.undo.addEventListener('mouseover', () => {
       this._umap.tooltip.open({
         content: this._umap.help.displayLabel('CANCEL'),
-        anchor: this.elements.cancel,
+        anchor: this.elements.undo,
         position: 'bottom',
         delay: 500,
         duration: 5000,
@@ -154,9 +159,10 @@ export class TopBar extends WithTemplate {
   redraw() {
     const syncEnabled = this._umap.getProperty('syncEnabled')
     this.elements.peers.hidden = !syncEnabled
-    this.elements.cancel.hidden = syncEnabled
+    this.elements.view.disabled = this._umap.sync._undoManager.isDirty()
     this.elements.saveLabel.hidden = this._umap.permissions.isDraft()
     this.elements.saveDraftLabel.hidden = !this._umap.permissions.isDraft()
+    this._umap.sync._undoManager.toggleState()
   }
 }
 
@@ -240,10 +246,7 @@ export class EditBar extends WithTemplate {
     DomEvent.disableClickPropagation(this.element)
     this._onClick('marker', () => this._leafletMap.editTools.startMarker())
     this._onClick('polyline', () => this._leafletMap.editTools.startPolyline())
-    this._onClick('multiline', () => {
+    this._onClick('multiline', () => this._umap.editedFeature.ui.editor.newShape())
-      console.log('click click')
-      this._umap.editedFeature.ui.editor.newShape()
-    })
     this._onClick('polygon', () => this._leafletMap.editTools.startPolygon())
     this._onClick('multipolygon', () => this._umap.editedFeature.ui.editor.newShape())
     this._onClick('caption', () => this._umap.editCaption())

umap/static/umap/js/modules/umap.js

@@ -1,13 +1,10 @@
 import {
   DomUtil,
   Util as LeafletUtil,
-  stamp,
   latLngBounds,
 } from '../../vendors/leaflet/leaflet-src.esm.js'
 import { translate, setLocale, getLocale } from './i18n.js'
 import * as Utils from './utils.js'
-import { ServerStored } from './saving.js'
-import * as SAVEMANAGER from './saving.js'
 import { SyncEngine } from './sync/engine.js'
 import { LeafletMap } from './rendering/map.js'
 import URLs from './urls.js'
@@ -36,9 +33,8 @@ import {
 import Orderable from './orderable.js'
 import { MutatingForm } from './form/builder.js'
 
-export default class Umap extends ServerStored {
+export default class Umap {
   constructor(element, geojson) {
-    super()
     // We need to call async function in the init process,
     // the init itself does not need to be awaited, but some calls
     // in the process must be blocker
@@ -96,6 +92,10 @@ export default class Umap extends ServerStored {
         this._leafletMap.latLng(center)
     }
 
+    // Needed for permissions
+    this.syncEngine = new SyncEngine(this)
+    this.sync = this.syncEngine.proxy(this)
+
     // Needed to render controls
     this.permissions = new MapPermissions(this)
     this.urls = new URLs(this.properties.urls)
@@ -130,9 +130,6 @@ export default class Umap extends ServerStored {
     this.share = new Share(this)
     this.rules = new Rules(this)
 
-    this.syncEngine = new SyncEngine(this)
-    this.sync = this.syncEngine.proxy(this)
-
     if (this.hasEditMode()) {
       this.editPanel = new EditPanel(this, this._leafletMap)
       this.fullPanel = new FullPanel(this, this._leafletMap)
@@ -196,7 +193,6 @@ export default class Umap extends ServerStored {
     // Creation mode
     if (!this.id) {
       if (!this.properties.preview) {
-        this.isDirty = true
         this.enableEdit()
       }
       this._defaultExtent = true
@@ -212,10 +208,14 @@ export default class Umap extends ServerStored {
       this.propagate()
     }
 
-    window.onbeforeunload = () => (this.editEnabled && SAVEMANAGER.isDirty) || null
+    window.onbeforeunload = () => (this.editEnabled && this.isDirty) || null
     this.backup()
   }
 
+  get isDirty() {
+    return this.sync._undoManager.isDirty()
+  }
+
   get editedFeature() {
     return this._editedFeature
   }
@@ -349,7 +349,7 @@ export default class Umap extends ServerStored {
     const items = []
     if (this.hasEditMode()) {
       if (this.editEnabled) {
-        if (!SAVEMANAGER.isDirty) {
+        if (!this.isDirty) {
           items.push({
             label: this.help.displayLabel('STOP_EDIT'),
             action: () => this.disableEdit(),
@@ -543,19 +543,17 @@ export default class Umap extends ServerStored {
       let used = true
       switch (event.key) {
         case 'e':
-          if (!SAVEMANAGER.isDirty) this.disableEdit()
+          if (!this.isDirty) this.disableEdit()
           break
         case 's':
-          if (SAVEMANAGER.isDirty) this.saveAll()
+          if (this.isDirty) this.saveAll()
           break
         case 'z':
           if (Utils.isWritable(event.target)) {
             used = false
             break
           }
-          if (SAVEMANAGER.isDirty) {
+          this.sync._undoManager.undo()
-            this.askForReset()
-          }
           break
         case 'm':
           this._leafletMap.editTools.startMarker()
@@ -671,10 +669,10 @@ export default class Umap extends ServerStored {
   }
 
   async saveAll() {
-    if (!SAVEMANAGER.isDirty) return
+    if (!this.isDirty) return
     if (this._defaultExtent) this._setCenterAndZoom()
     this.backup()
-    await SAVEMANAGER.save()
+    await this.sync.save()
     // Do a blind render for now, as we are not sure what could
     // have changed, we'll be more subtil when we'll remove the
     // save action
@@ -685,7 +683,6 @@ export default class Umap extends ServerStored {
         Alert.success(translate('Map has been saved!'))
       })
     }
-    this.sync.saved()
     this.fire('saved')
   }
 
@@ -1019,35 +1016,36 @@ export default class Umap extends ServerStored {
       'button',
       boundsButtons,
       translate('Use current bounds'),
-      function () {
+      () => {
         const bounds = this._leafletMap.getBounds()
+        const oldLimitBounds = { ...this.properties.limitBounds }
         this.properties.limitBounds.south = LeafletUtil.formatNum(bounds.getSouth())
         this.properties.limitBounds.west = LeafletUtil.formatNum(bounds.getWest())
         this.properties.limitBounds.north = LeafletUtil.formatNum(bounds.getNorth())
         this.properties.limitBounds.east = LeafletUtil.formatNum(bounds.getEast())
         boundsBuilder.fetchAll()
-
+        this.sync.update(
-        this.sync.update(this, 'properties.limitBounds', this.properties.limitBounds)
+          'properties.limitBounds',
-        this.isDirty = true
+          this.properties.limitBounds,
+          oldLimitBounds
+        )
         this._leafletMap.handleLimitBounds()
-      },
+      }
-      this
-    )
-    DomUtil.createButton(
-      'button',
-      boundsButtons,
-      translate('Empty'),
-      function () {
-        this.properties.limitBounds.south = null
-        this.properties.limitBounds.west = null
-        this.properties.limitBounds.north = null
-        this.properties.limitBounds.east = null
-        boundsBuilder.fetchAll()
-        this.isDirty = true
-        this._leafletMap.handleLimitBounds()
-      },
-      this
     )
+    DomUtil.createButton('button', boundsButtons, translate('Empty'), () => {
+      const oldLimitBounds = { ...this.properties.limitBounds }
+      this.properties.limitBounds.south = null
+      this.properties.limitBounds.west = null
+      this.properties.limitBounds.north = null
+      this.properties.limitBounds.east = null
+      boundsBuilder.fetchAll()
+      this._leafletMap.handleLimitBounds()
+      this.sync.update(
+        'properties.limitBounds',
+        this.properties.limitBounds,
+        oldLimitBounds
+      )
+    })
   }
 
   _editSlideshow(container) {
@@ -1160,23 +1158,7 @@ export default class Umap extends ServerStored {
     })
   }
 
-  reset() {
-    if (this._leafletMap.editTools) this._leafletMap.editTools.stopDrawing()
-    this.resetProperties()
-    this.datalayersIndex = [].concat(this._datalayersIndex_bk)
-    // Iter over all datalayers, including deleted if any.
-    for (const datalayer of Object.values(this.datalayers)) {
-      if (datalayer.isDeleted) datalayer.connectToMap()
-      if (datalayer.isDirty) datalayer.reset()
-    }
-    this.ensurePanesOrder()
-    this._leafletMap.initTileLayers()
-    this.onDataLayersChanged()
-    this.isDirty = !this.id
-  }
-
   async save() {
-    this.rules.commit()
     const geojson = {
       type: 'Feature',
       geometry: this.geometry(),
@@ -1301,16 +1283,6 @@ export default class Umap extends ServerStored {
     this._leafletMap.fire(name)
   }
 
-  askForReset(e) {
-    if (this.getProperty('syncEnabled')) return
-    this.dialog
-      .confirm(translate('Are you sure you want to cancel your changes?'))
-      .then(() => {
-        this.reset()
-        this.disableEdit()
-      })
-  }
-
   async initSyncEngine() {
     // this.properties.websocketEnabled is set by the server admin
     if (this.properties.websocketEnabled === false) return
@@ -1324,7 +1296,6 @@ export default class Umap extends ServerStored {
 
   getSyncMetadata() {
     return {
-      engine: this.sync,
       subject: 'map',
     }
   }
@@ -1348,6 +1319,9 @@ export default class Umap extends ServerStored {
           this.bottomBar.redraw()
           break
         case 'data':
+          if (fields.includes('properties.rules')) {
+            this.rules.load()
+          }
           this.eachVisibleDataLayer((datalayer) => {
             datalayer.redraw()
           })
@@ -1522,7 +1496,7 @@ export default class Umap extends ServerStored {
       const form = builder.build()
       row.appendChild(form)
       row.classList.toggle('off', !datalayer.isVisible())
-      row.dataset.id = stamp(datalayer)
+      row.dataset.id = datalayer.id
     })
     const onReorder = (src, dst, initialIndex, finalIndex) => {
       const movedLayer = this.datalayers[src.dataset.id]
@@ -1553,7 +1527,7 @@ export default class Umap extends ServerStored {
   }
 
   getDataLayerByUmapId(id) {
-    const datalayer = this.findDataLayer((d) => d.id === id)
+    const datalayer = this.datalayers[id]
     if (!datalayer) throw new Error(`Can't find datalayer with id ${id}`)
     return datalayer
   }
@@ -1669,7 +1643,6 @@ export default class Umap extends ServerStored {
     )
     this.render(fields)
     this._leafletMap._setDefaultCenter()
-    this.isDirty = true
   }
 
   importUmapFile(file) {
@@ -1768,13 +1741,26 @@ export default class Umap extends ServerStored {
   }
 
   _setCenterAndZoom() {
+    const oldCenter = { ...this.properties.center }
+    const oldZoom = this.properties.zoom
     this.properties.center = this._leafletMap.getCenter()
     this.properties.zoom = this._leafletMap.getZoom()
-    this.isDirty = true
     this._defaultExtent = false
+    this.sync.startBatch()
+    this.sync.update('properties.center', this.properties.center, oldCenter)
+    this.sync.update('properties.zoom', this.properties.zoom, oldZoom)
+    this.sync.commitBatch()
   }
 
   getStaticPathFor(name) {
     return SCHEMA.iconUrl.default.replace('marker.svg', name)
   }
+
+  undo() {
+    this.sync._undoManager.undo()
+  }
+
+  redo() {
+    this.sync._undoManager.redo()
+  }
 }

umap/static/umap/js/modules/utils.js

@@ -481,6 +481,27 @@ export const debounce = (callback, wait) => {
   }
 }
 
+export function setObjectValue(obj, key, value) {
+  const parts = key.split('.')
+  const lastKey = parts.pop()
+
+  // Reduce the current list of attributes,
+  // to find the object to set the property onto
+  const objectToSet = parts.reduce((currentObj, part) => {
+    if (currentObj !== undefined && part in currentObj) return currentObj[part]
+  }, obj)
+
+  // In case the given path doesn't exist, stop here
+  if (objectToSet === undefined) return
+
+  // Set the value (or delete it)
+  if (typeof value === 'undefined') {
+    delete objectToSet[lastKey]
+  } else {
+    objectToSet[lastKey] = value
+  }
+}
+
 export const COLORS = [
   'Black',
   'Navy',

umap/static/umap/js/umap.controls.js

@@ -297,6 +297,7 @@ U.TileLayerChooser = L.Control.extend({
       el,
       'click',
       () => {
+        const oldTileLayer = this.map._umap.properties.tilelayer
         this.map.selectTileLayer(tilelayer)
         this.map._controls.tilelayers.setLayers()
         if (options?.edit) {
@@ -304,7 +305,8 @@ U.TileLayerChooser = L.Control.extend({
           this.map._umap.isDirty = true
           this.map._umap.sync.update(
             'properties.tilelayer',
-            this.map._umap.properties.tilelayer
+            this.map._umap.properties.tilelayer,
+            oldTileLayer
           )
         }
       },
@@ -606,7 +608,7 @@ U.Editable = L.Editable.extend({
     this.on('editable:editing', (event) => {
       const feature = event.layer.feature
       feature.isDirty = true
-      feature.pullGeometry(false)
+      // feature.pullGeometry(false)
     })
     this.on('editable:vertex:ctrlclick', (event) => {
       const index = event.vertex.getIndex()
@@ -624,18 +626,20 @@ U.Editable = L.Editable.extend({
 
   createPolyline: function (latlngs) {
     const datalayer = this._umap.defaultEditDataLayer()
-    const point = new U.LineString(this._umap, datalayer, {
+    const line = new U.LineString(this._umap, datalayer, {
       geometry: { type: 'LineString', coordinates: [] },
     })
-    return point.ui
+    line._just_married = true
+    return line.ui
   },
 
   createPolygon: function (latlngs) {
     const datalayer = this._umap.defaultEditDataLayer()
-    const point = new U.Polygon(this._umap, datalayer, {
+    const poly = new U.Polygon(this._umap, datalayer, {
       geometry: { type: 'Polygon', coordinates: [] },
     })
-    return point.ui
+    poly._just_married = true
+    return poly.ui
   },
 
   createMarker: function (latlng) {
@@ -643,6 +647,7 @@ U.Editable = L.Editable.extend({
     const point = new U.Point(this._umap, datalayer, {
       geometry: { type: 'Point', coordinates: [latlng.lng, latlng.lat] },
     })
+    point._just_married = true
     return point.ui
   },
 
@@ -734,6 +739,7 @@ U.Editable = L.Editable.extend({
       // Leaflet.Editable will delete the drawn shape if invalid
       // (eg. line has only one drawn point)
       // So let's check if the layer has no more shape
+      event.layer.feature.pullGeometry(false)
       if (!event.layer.feature.hasGeom()) {
         event.layer.feature.del()
       } else {

umap/static/umap/map.css

@@ -990,7 +990,7 @@ a.umap-control-caption,
     .umap-main-edit-toolbox .umap-user span,
     .leaflet-container .leaflet-control-edit-save span,
     .leaflet-container .leaflet-control-edit-disable span,
-    .leaflet-container .leaflet-control-edit-cancel span {
+    .leaflet-container .edit-cancel span {
         display: none;
     }
     .umap-main-edit-toolbox .umap-help-button {

umap/static/umap/unittests/sync.js

@@ -49,63 +49,6 @@ describe('#dispatch', () => {
   })
 })
 
-describe('Updaters', () => {
-  describe('BaseUpdater', () => {
-    let updater
-    let map
-    let obj
-
-    beforeEach(() => {
-      map = {}
-      updater = new MapUpdater(map)
-      obj = {}
-    })
-    it('should be able to set object properties', () => {
-      let obj = {}
-      updater.updateObjectValue(obj, 'foo', 'foo')
-      expect(obj).deep.equal({ foo: 'foo' })
-    })
-
-    it('should be able to set object properties recursively on existing objects', () => {
-      let obj = { foo: {} }
-      updater.updateObjectValue(obj, 'foo.bar', 'foo')
-      expect(obj).deep.equal({ foo: { bar: 'foo' } })
-    })
-
-    it('should be able to set object properties recursively on deep objects', () => {
-      let obj = { foo: { bar: { baz: {} } } }
-      updater.updateObjectValue(obj, 'foo.bar.baz.test', 'value')
-      expect(obj).deep.equal({ foo: { bar: { baz: { test: 'value' } } } })
-    })
-
-    it('should be able to replace object properties recursively on deep objects', () => {
-      let obj = { foo: { bar: { baz: { test: 'test' } } } }
-      updater.updateObjectValue(obj, 'foo.bar.baz.test', 'value')
-      expect(obj).deep.equal({ foo: { bar: { baz: { test: 'value' } } } })
-    })
-
-    it('should not set object properties recursively on non-existing objects', () => {
-      let obj = { foo: {} }
-      updater.updateObjectValue(obj, 'bar.bar', 'value')
-
-      expect(obj).deep.equal({ foo: {} })
-    })
-
-    it('should delete keys for undefined values', () => {
-      let obj = { foo: 'foo' }
-      updater.updateObjectValue(obj, 'foo', undefined)
-
-      expect(obj).deep.equal({})
-    })
-
-    it('should delete keys for undefined values, recursively', () => {
-      let obj = { foo: { bar: 'bar' } }
-      updater.updateObjectValue(obj, 'foo.bar', undefined)
-
-      expect(obj).deep.equal({ foo: {} })
-    })
-  })
-})
 
 describe('Operations', () => {
   describe('haveSameContext', () => {

umap/static/umap/unittests/utils.js

@@ -862,4 +862,51 @@ describe('Utils', () => {
       assert.equal(Utils.isObject(''), false)
     })
   })
+
+  describe('setObjectValue', () => {
+    it('should be able to set object properties', () => {
+      let obj = {}
+      Utils.setObjectValue(obj, 'foo', 'foo')
+      expect(obj).deep.equal({ foo: 'foo' })
+    })
+
+    it('should be able to set object properties recursively on existing objects', () => {
+      let obj = { foo: {} }
+      Utils.setObjectValue(obj, 'foo.bar', 'foo')
+      expect(obj).deep.equal({ foo: { bar: 'foo' } })
+    })
+
+    it('should be able to set object properties recursively on deep objects', () => {
+      let obj = { foo: { bar: { baz: {} } } }
+      Utils.setObjectValue(obj, 'foo.bar.baz.test', 'value')
+      expect(obj).deep.equal({ foo: { bar: { baz: { test: 'value' } } } })
+    })
+
+    it('should be able to replace object properties recursively on deep objects', () => {
+      let obj = { foo: { bar: { baz: { test: 'test' } } } }
+      Utils.setObjectValue(obj, 'foo.bar.baz.test', 'value')
+      expect(obj).deep.equal({ foo: { bar: { baz: { test: 'value' } } } })
+    })
+
+    it('should not set object properties recursively on non-existing objects', () => {
+      let obj = { foo: {} }
+      Utils.setObjectValue(obj, 'bar.bar', 'value')
+
+      expect(obj).deep.equal({ foo: {} })
+    })
+
+    it('should delete keys for undefined values', () => {
+      let obj = { foo: 'foo' }
+      Utils.setObjectValue(obj, 'foo', undefined)
+
+      expect(obj).deep.equal({})
+    })
+
+    it('should delete keys for undefined values, recursively', () => {
+      let obj = { foo: { bar: 'bar' } }
+      Utils.setObjectValue(obj, 'foo.bar', undefined)
+
+      expect(obj).deep.equal({ foo: {} })
+    })
+  })
 })

umap/sync/payloads.py

@@ -1,4 +1,4 @@
-from typing import Literal, Optional, Union
+from typing import List, Literal, Optional, Union
 
 from pydantic import BaseModel, Field, RootModel
 
@@ -14,10 +14,11 @@ class OperationMessage(BaseModel):
     """Message sent from one peer to all the others"""
 
     kind: Literal["OperationMessage"] = "OperationMessage"
-    verb: Literal["upsert", "update", "delete"]
+    verb: Literal["upsert", "update", "delete", "batch"]
     subject: Literal["map", "datalayer", "feature"]
     metadata: Optional[dict] = None
     key: Optional[str] = None
+    operations: Optional[List] = None
 
 
 class PeerMessage(BaseModel):

umap/tests/base.py

@@ -18,6 +18,7 @@ DATALAYER_DATA = {
     "features": [
         {
             "type": "Feature",
+            "id": "ExNTQ",
             "geometry": {
                 "type": "Point",
                 "coordinates": [14.68896484375, 48.55297816440071],
@@ -41,7 +42,7 @@ class LicenceFactory(factory.django.DjangoModelFactory):
 
 
 class TileLayerFactory(factory.django.DjangoModelFactory):
-    name = "Test zoom layer"
+    name = "Test tilelayer"
     url_template = "https://tile.openstreetmap.org/{z}/{x}/{y}.png"
     attribution = "Test layer attribution"
 

umap/tests/integration/test_browser.py

@@ -350,8 +350,7 @@ def test_should_redraw_list_on_feature_delete(live_server, openmap, page, bootst
     buttons.first.click()
     page.locator("dialog").get_by_role("button", name="OK").click()
     expect(buttons).to_have_count(2)
-    page.get_by_role("button", name="Cancel edits").click()
+    page.get_by_role("button", name="Undo").click()
-    page.locator("dialog").get_by_role("button", name="OK").click()
     expect(buttons).to_have_count(3)
 
 

umap/tests/integration/test_conditional_rules.py

@@ -261,6 +261,9 @@ def test_can_create_new_rule(live_server, page, openmap):
     page.get_by_title("AliceBlue").first.click()
     colors = getColors(markers)
     assert colors.count("rgb(240, 248, 255)") == 3
+    page.get_by_role("button", name="Undo").click()
+    colors = getColors(markers)
+    assert colors.count("rgb(240, 248, 255)") == 0
 
 
 def test_can_deactive_rule_from_list(live_server, page, openmap):

umap/tests/integration/test_edit_datalayer.py

@@ -64,8 +64,7 @@ def test_cancel_deleting_datalayer_should_restore(
     page.get_by_role("button", name="OK").click()
     expect(markers).to_have_count(0)
     expect(page.get_by_text("test datalayer")).to_be_hidden()
-    page.get_by_role("button", name="Cancel edits").click()
+    page.get_by_role("button", name="Undo").click()
-    page.locator("dialog").get_by_role("button", name="OK").click()
     expect(markers).to_have_count(1)
     expect(page.locator(".umap-browser").get_by_text("test datalayer")).to_be_visible()
 
@@ -160,7 +159,6 @@ def test_can_create_new_datalayer(live_server, openmap, page, datalayer):
     page.locator('input[name="name"]').click()
     page.locator('input[name="name"]').fill("Layer A with a new name")
     expect(page.get_by_text("Layer A with a new name")).to_be_visible()
-    page.get_by_role("button", name="Save").click()
     with page.expect_response(re.compile(".*/datalayer/update/.*")):
         page.get_by_role("button", name="Save").click()
     assert DataLayer.objects.count() == 2

umap/tests/integration/test_edit_polygon.py

@@ -117,8 +117,7 @@ def test_should_reset_style_on_cancel(live_server, openmap, page, bootstrap):
     expect(page.locator(".leaflet-overlay-pane path[fill='GoldenRod']")).to_have_count(
         1
     )
-    page.get_by_role("button", name="Cancel edits").click()
+    page.get_by_role("button", name="Undo").click()
-    page.locator("dialog").get_by_role("button", name="OK").click()
     expect(page.locator(".leaflet-overlay-pane path[fill='DarkBlue']")).to_have_count(1)
 
 

umap/tests/integration/test_optimistic_merge.py

@@ -292,9 +292,10 @@ def test_should_display_alert_on_conflict(context, live_server, datalayer, openm
     # Change name on page two and save
     page_two.locator(".leaflet-marker-icon").click(modifiers=["Shift"])
     page_two.locator('input[name="name"]').fill("name from page two")
+    page_two.wait_for_timeout(300)  # Time for the input debounce.
 
     # Map should be in dirty status
-    expect(page_two.get_by_text("Cancel edits")).to_be_visible()
+    expect(page_two.get_by_text("Save", exact=True)).to_be_enabled()
     with page_two.expect_response(re.compile(r".*/datalayer/update/.*")):
         page_two.get_by_role("button", name="Save").click()
 
@@ -306,7 +307,7 @@ def test_should_display_alert_on_conflict(context, live_server, datalayer, openm
     # We should have an alert with some actions
     expect(page_two.get_by_text("Whoops! Other contributor(s) changed")).to_be_visible()
     # Map should still be in dirty status
-    expect(page_two.get_by_text("Cancel edits")).to_be_visible()
+    expect(page_two.get_by_text("Save", exact=True)).to_be_enabled()
 
     # Override data from page two
     with page_two.expect_response(re.compile(r".*/datalayer/update/.*")):
@@ -317,4 +318,4 @@ def test_should_display_alert_on_conflict(context, live_server, datalayer, openm
     data = json.loads(Path(saved.geojson.path).read_text())
     assert data["features"][0]["properties"]["name"] == "name from page two"
     # Map should not be in dirty status anymore
-    expect(page_two.get_by_text("Cancel edits")).to_be_hidden()
+    expect(page_two.get_by_text("Save", exact=True)).to_be_disabled()

umap/tests/integration/test_save.py

@@ -16,17 +16,15 @@ def test_reseting_map_would_remove_from_save_queue(
     page.on("request", register_request)
     page.locator('input[name="name"]').click()
     page.locator('input[name="name"]').fill("new name")
-    page.get_by_role("button", name="Cancel edits").click()
+    page.get_by_role("button", name="Undo").click()
-    page.get_by_role("button", name="OK").click()
     page.wait_for_timeout(500)
-    page.get_by_role("button", name="Edit").click()
     page.get_by_role("button", name="Manage layers").click()
     page.get_by_role("button", name="Edit", exact=True).click()
     page.locator('input[name="name"]').click()
     page.locator('input[name="name"]').fill("new datalayer name")
     page.wait_for_timeout(300)  # Time of the Input debounce
     with page.expect_response(re.compile(".*/datalayer/update/.*")):
-        page.get_by_role("button", name="Save").click()
+        page.get_by_role("button", name="Save", exact=True).click()
     assert len(requests) == 1
     assert requests == [
         (

umap/tests/integration/test_undo_redo.py

@@ -0,0 +1,267 @@
+import re
+from pathlib import Path
+
+import pytest
+from playwright.sync_api import expect
+
+from umap.models import Map, TileLayer
+
+from ..base import DataLayerFactory
+
+pytestmark = pytest.mark.django_db
+
+DATALAYER_DATA = {
+    "type": "FeatureCollection",
+    "features": [
+        {
+            "type": "Feature",
+            "properties": {
+                "name": "name poly",
+            },
+            "id": "gyNzM",
+            "geometry": {
+                "type": "Polygon",
+                "coordinates": [
+                    [
+                        [11.25, 53.585984],
+                        [10.151367, 52.975108],
+                        [12.689209, 52.167194],
+                        [14.084473, 53.199452],
+                        [12.634277, 53.618579],
+                        [11.25, 53.585984],
+                        [11.25, 53.585984],
+                    ],
+                ],
+            },
+        },
+    ],
+}
+
+
+@pytest.fixture
+def map_with_polygon(map, live_server):
+    map.settings["properties"]["zoom"] = 6
+    map.settings["geometry"] = {
+        "type": "Point",
+        "coordinates": [8.429, 53.239],
+    }
+    map.edit_status = Map.ANONYMOUS
+    map.save()
+    DataLayerFactory(map=map, data=DATALAYER_DATA)
+    return map
+
+
+def test_can_undo_redo_map_name_change(page, live_server, tilelayer):
+    page.goto(f"{live_server.url}/en/map/new/")
+
+    expect(page.locator(".edit-undo")).to_be_disabled()
+    expect(page.locator(".edit-redo")).to_be_disabled()
+    page.get_by_title("Edit map name and caption").click()
+    name_input = page.locator('.map-metadata input[name="name"]')
+    expect(name_input).to_be_visible()
+    name_input.click()
+    name_input.press("Control+a")
+    name_input.fill("New map name")
+    expect(page.locator(".edit-undo")).to_be_enabled()
+    expect(page.locator(".edit-redo")).to_be_disabled()
+    map_name = page.locator(".umap-main-edit-toolbox .map-name")
+    expect(map_name).to_have_text("New map name")
+    name_input.fill("New name again")
+    expect(map_name).to_have_text("New name again")
+
+    page.locator(".edit-undo").click()
+    expect(map_name).to_have_text("New map name")
+    expect(page.locator(".edit-undo")).to_be_enabled()
+    expect(page.locator(".edit-redo")).to_be_enabled()
+
+    page.locator(".edit-redo").click()
+    expect(map_name).to_have_text("New name again")
+    expect(page.locator(".edit-undo")).to_be_enabled()
+    expect(page.locator(".edit-redo")).to_be_disabled()
+
+    page.locator(".edit-undo").click()
+    expect(map_name).to_have_text("New map name")
+    expect(page.locator(".edit-undo")).to_be_enabled()
+    expect(page.locator(".edit-redo")).to_be_enabled()
+
+
+def test_can_undo_redo_layer_color_change(
+    page, map_with_polygon, live_server, tilelayer
+):
+    page.goto(f"{live_server.url}{map_with_polygon.get_absolute_url()}?edit")
+
+    expect(page.locator(".edit-undo")).to_be_disabled()
+    expect(page.locator(".edit-redo")).to_be_disabled()
+    page.get_by_role("button", name="Manage layers").click()
+    page.locator(".panel").get_by_title("Edit", exact=True).click()
+    page.get_by_text("Shape properties").click()
+    page.locator(".umap-field-color .define").click()
+    expect(page.locator(".leaflet-overlay-pane path[fill='DarkBlue']")).to_have_count(1)
+    page.get_by_title("DarkRed").first.click()
+    expect(page.locator(".leaflet-overlay-pane path[fill='DarkRed']")).to_have_count(1)
+    expect(page.locator(".edit-undo")).to_be_enabled()
+    expect(page.locator(".edit-redo")).to_be_disabled()
+
+    page.locator(".edit-undo").click()
+    expect(page.locator(".leaflet-overlay-pane path[fill='DarkBlue']")).to_have_count(1)
+    expect(page.locator(".leaflet-overlay-pane path[fill='DarkRed']")).to_have_count(0)
+    expect(page.locator(".edit-undo")).to_be_disabled()
+    expect(page.locator(".edit-redo")).to_be_enabled()
+
+    page.locator(".edit-redo").click()
+    expect(page.locator(".leaflet-overlay-pane path[fill='DarkRed']")).to_have_count(1)
+    expect(page.locator(".leaflet-overlay-pane path[fill='DarkBlue']")).to_have_count(0)
+    expect(page.locator(".edit-undo")).to_be_enabled()
+    expect(page.locator(".edit-redo")).to_be_disabled()
+
+
+def test_can_undo_redo_tilelayer_change(live_server, page, openmap, tilelayer):
+    TileLayer.objects.create(
+        url_template="https://{s}.basemaps.cartocdn.com/dark_all/{z}/{x}/{y}.png",
+        attribution="OSM/Carto",
+        name="Black Tiles",
+    )
+    page.goto(f"{live_server.url}{openmap.get_absolute_url()}?edit")
+    old_pattern = re.compile(
+        r"https://[abc]{1}.tile.openstreetmap.fr/osmfr/\d+/\d+/\d+.png"
+    )
+    tiles = page.locator(".leaflet-tile-pane img")
+    expect(tiles.first).to_have_attribute("src", old_pattern)
+
+    new_pattern = re.compile(
+        r"https://[abcd]{1}.basemaps.cartocdn.com/dark_all/\d+/\d+/\d+.png"
+    )
+    page.get_by_role("button", name="Change tilelayers").click()
+    page.locator("li").filter(has_text="Black Tiles").get_by_role("img").click()
+
+    tiles = page.locator(".leaflet-tile-pane img")
+    expect(tiles.first).to_have_attribute("src", new_pattern)
+
+    page.locator(".edit-undo").click()
+    tiles = page.locator(".leaflet-tile-pane img")
+    expect(tiles.first).to_have_attribute("src", old_pattern)
+
+    page.locator(".edit-redo").click()
+    tiles = page.locator(".leaflet-tile-pane img")
+    expect(tiles.first).to_have_attribute("src", new_pattern)
+
+
+def test_can_undo_redo_marker_drag(live_server, page, tilelayer):
+    page.goto(f"{live_server.url}/en/map/new")
+
+    marker = page.locator(".leaflet-marker-icon")
+    map = page.locator("#map")
+
+    # Create a marker
+    page.get_by_title("Draw a marker").click()
+    map.click(position={"x": 225, "y": 225})
+    expect(marker).to_have_count(1)
+
+    # Drag marker
+    old_bbox = marker.bounding_box()
+    marker.first.drag_to(map, target_position={"x": 250, "y": 250})
+    assert marker.bounding_box() != old_bbox
+
+    # Undo
+    page.locator(".edit-undo").click()
+    assert marker.bounding_box() == old_bbox
+
+    # Redo
+    page.locator(".edit-redo").click()
+    assert marker.bounding_box() != old_bbox
+
+
+def test_can_undo_redo_polygon_geometry_change(live_server, page, tilelayer):
+    page.goto(f"{live_server.url}/en/map/new")
+
+    # Click on the Draw a polygon button on a new map.
+    page.get_by_title("Draw a polygon").click()
+
+    polygon = page.locator("path[fill='DarkBlue']")
+    expect(polygon).to_have_count(0)
+
+    # Click on the map, it will create a polygon.
+    map = page.locator("#map")
+    map.click(position={"x": 200, "y": 200})
+    map.click(position={"x": 100, "y": 200})
+    map.click(position={"x": 100, "y": 100})
+    map.click(position={"x": 100, "y": 100})
+
+    # It is created on peerA, and should be on peerB
+    expect(polygon).to_have_count(1)
+    old_bbox = polygon.bounding_box()
+
+    edited_vertex = page.locator(".leaflet-middle-icon:nth-child(3)").first
+    edited_vertex.drag_to(map, target_position={"x": 250, "y": 250})
+    page.keyboard.press("Escape")
+
+    assert polygon.bounding_box() != old_bbox
+
+    page.locator(".edit-undo").click()
+    assert polygon.bounding_box() == old_bbox
+
+    page.locator(".edit-redo").click()
+    assert polygon.bounding_box() != old_bbox
+
+
+def test_can_undo_redo_marker_create(live_server, page, tilelayer):
+    page.goto(f"{live_server.url}/en/map/new")
+
+    page.get_by_title("Open Browser").click()
+    marker = page.locator(".leaflet-marker-icon")
+    map = page.locator("#map")
+
+    # Create a marker
+    page.get_by_title("Draw a marker").click()
+    map.click(position={"x": 600, "y": 100})
+    expect(marker).to_have_count(1)
+    expect(page.locator(".panel .datalayer")).to_have_count(1)
+
+    page.locator(".edit-undo").click()
+    expect(marker).to_have_count(0)
+    # Layer still exists
+    expect(page.locator(".panel .datalayer")).to_have_count(1)
+
+    page.locator(".edit-undo").click()
+    expect(page.locator(".panel .datalayer")).to_have_count(0)
+
+    page.locator(".edit-redo").click()
+    expect(page.locator(".panel .datalayer")).to_have_count(1)
+
+    page.locator(".edit-redo").click()
+    expect(marker).to_have_count(1)
+
+
+def test_undo_redo_import(live_server, page, tilelayer):
+    page.goto(f"{live_server.url}/map/new/")
+    page.get_by_title("Open Browser").click()
+
+    page.get_by_title("Import data").click()
+    file_input = page.locator("input[type='file']")
+    with page.expect_file_chooser() as fc_info:
+        file_input.click()
+    file_chooser = fc_info.value
+    path = Path(__file__).parent.parent / "fixtures/test_upload_data.json"
+    file_chooser.set_files(path)
+    page.get_by_role("button", name="Import data", exact=True).click()
+    # Close the import panel
+    page.keyboard.press("Escape")
+
+    layers = page.locator(".umap-browser .datalayer")
+    expect(layers).to_have_count(1)
+
+    features_count = page.locator(".umap-browser .datalayer-counter")
+    expect(features_count).to_have_text("(5)")
+
+    page.locator(".edit-undo").click()
+    expect(features_count).to_be_hidden()
+    expect(layers).to_have_count(1)
+
+    page.locator(".edit-undo").click()
+    expect(layers).to_have_count(0)
+
+    page.locator(".edit-redo").click()
+    expect(layers).to_have_count(1)
+
+    page.locator(".edit-redo").click()
+    expect(features_count).to_have_text("(5)")

umap/tests/integration/test_websocket_sync.py

@@ -659,3 +659,73 @@ def test_should_sync_line_on_escape(new_page, asgi_live_server, tilelayer):
 
     expect(peerA.locator("path")).to_have_count(1)
     expect(peerB.locator("path")).to_have_count(1)
+
+
+@pytest.mark.xdist_group(name="websockets")
+def test_should_sync_datalayer_clear(
+    new_page, asgi_live_server, tilelayer, map, datalayer
+):
+    map.settings["properties"]["syncEnabled"] = True
+    map.edit_status = Map.ANONYMOUS
+    map.save()
+
+    # Create two tabs
+    peerA = new_page("Page A")
+    peerA.goto(f"{asgi_live_server.url}{map.get_absolute_url()}?edit")
+    peerB = new_page("Page B")
+    peerB.goto(f"{asgi_live_server.url}{map.get_absolute_url()}?edit")
+    expect(peerA.locator(".leaflet-marker-icon")).to_have_count(1)
+    expect(peerB.locator(".leaflet-marker-icon")).to_have_count(1)
+
+    # Clear layer in peer A
+    peerA.get_by_role("button", name="Manage layers").click()
+    peerA.get_by_role("button", name="Edit", exact=True).click()
+    peerA.locator("summary").filter(has_text="Advanced actions").click()
+    peerA.get_by_role("button", name="Empty").click()
+    expect(peerA.locator(".leaflet-marker-icon")).to_have_count(0)
+    expect(peerB.locator(".leaflet-marker-icon")).to_have_count(0)
+
+    # Undo in peer A
+    peerA.get_by_role("button", name="Undo").click()
+    expect(peerA.locator(".leaflet-marker-icon")).to_have_count(1)
+    expect(peerB.locator(".leaflet-marker-icon")).to_have_count(1)
+
+
+@pytest.mark.xdist_group(name="websockets")
+def test_should_save_remote_dirty_datalayers(new_page, asgi_live_server, tilelayer):
+    map = MapFactory(name="sync", edit_status=Map.ANONYMOUS)
+    map.settings["properties"]["syncEnabled"] = True
+    map.save()
+
+    assert not DataLayer.objects.count()
+
+    # Create two tabs
+    peerA = new_page("Page A")
+    peerA.goto(f"{asgi_live_server.url}{map.get_absolute_url()}?edit")
+    peerB = new_page("Page B")
+    peerB.goto(f"{asgi_live_server.url}{map.get_absolute_url()}?edit")
+
+    # Create a new layer from peerA
+    peerA.get_by_role("button", name="Manage layers").click()
+    peerA.get_by_role("button", name="Add a layer").click()
+
+    # Create a new layer from peerB
+    peerB.get_by_role("button", name="Manage layers").click()
+    peerB.get_by_role("button", name="Add a layer").click()
+
+    # Save from peerA to the server
+    counter = 0
+
+    def on_response(response):
+        nonlocal counter
+        if "/datalayer/create/" in response.url:
+            counter += 1
+        # Wait for the two datalayer saves
+        if counter == 2:
+            return True
+        return False
+
+    with peerA.expect_response(on_response):
+        peerA.get_by_role("button", name="Save").click()
+
+    assert DataLayer.objects.count() == 2

umap/tests/test_datalayer_s3.py

@@ -103,6 +103,7 @@ def test_get_version(map, datalayer):
                     ],
                     "type": "Point",
                 },
+                "id": "ExNTQ",
                 "properties": {
                     "_umap_options": {
                         "color": "DarkCyan",

umap/tests/test_map_views.py

@@ -694,6 +694,7 @@ def test_download(client, map, datalayer):
                         "coordinates": [14.68896484375, 48.55297816440071],
                         "type": "Point",
                     },
+                    "id": "ExNTQ",
                     "properties": {
                         "_umap_options": {"color": "DarkCyan", "iconClass": "Ball"},
                         "description": "Da place anonymous again 755",