Action: allow geometry drawn by user

assets/src/components/ActionSelector.js

@@ -70,6 +70,9 @@ export default class ActionSelector extends HTMLElement {
     }
 
     onActionSelectChange(event) {
+        // Remove previous digitizing tool if any
+        document.querySelector('#project-action-selector-container lizmap-digitizing')?.remove();
+
         // Get the host component
         let host = event.target.closest("lizmap-action-selector");
 
@@ -93,6 +96,11 @@ export default class ActionSelector extends HTMLElement {
             if ('description' in action && action.description) {
                 description = action.description;
             }
+            if (action?.geometry) {
+                this._digitizingElement = `<lizmap-digitizing context="action" selected-tool="${action.geometry}" available-tools="${action.geometry}"></lizmap-digitizing>`;
+                document.querySelector('.action-selector-container').insertAdjacentHTML('afterend', this._digitizingElement);
+                mainLizmap.digitizing.context = "action";
+            }
         }
 
         descriptionSpan.textContent = description;

assets/src/modules/Action.js

@@ -142,7 +142,13 @@ export default class Action {
                 }
             });
         }
-
+        mainLizmap.lizmap3.events.on({
+            minidockclosed: (event) => {
+                if (event.id === 'action'){
+                    mainLizmap.digitizing.toolSelected = 'deactivate';
+                }
+            }
+        });
     }
 
     /**
@@ -399,6 +405,11 @@ export default class Action {
         options['mapExtent'] = WKTformat.writeGeometry(fromExtent(mainLizmap.extent), projOptions);
         options['mapCenter'] = WKTformat.writeGeometry(new Point(mainLizmap.center), projOptions);
 
+        // Optional geometry
+        if (mainLizmap.digitizing.context === "action" && mainLizmap.digitizing.featureDrawn) {
+            options['actionGeometry'] = WKTformat.writeFeatures(mainLizmap.digitizing.featureDrawn, projOptions);
+        }
+
         // Request action and get data
         let url = actionConfigData.url;
         try {

lizmap/modules/action/controllers/service.classic.php

@@ -138,8 +138,8 @@ public function index()
 
         // Check the given WKT (optional parameter, but must be valid)
         // Check also the map center and extent (must be valid WKT)
-        $wktParameters = array('wkt', 'mapCenter', 'mapExtent');
-        $wkt = $mapCenter = $mapExtent = '';
+        $wktParameters = array('wkt', 'mapCenter', 'mapExtent', 'actionGeometry');
+        $wkt = $mapCenter = $mapExtent = $actionGeometry = '';
         foreach($wktParameters as $paramName) {
             $value = trim($this->param($paramName, ''));
             ${$paramName} = $value;
@@ -173,6 +173,7 @@ public function index()
             'feature_id' => null,
             'map_center' => $mapCenter,
             'map_extent' => $mapExtent,
+            'action_geometry' => $actionGeometry,
             'wkt' => $wkt,
         );
 

lizmap/www/assets/css/action.css

@@ -54,3 +54,8 @@ div.action-buttons button:hover:not([disabled]) {
     color: white;
     text-shadow: none;
 }
+
+#project-action-selector-container lizmap-digitizing {
+    margin-bottom: 10px;
+    display: block;
+}

tests/qgis-projects/tests/feature_toolbar.qgs.action

@@ -52,6 +52,23 @@
         },
         "callbacks": []
     },
+    {
+        "name": "project_map_drawn_point_buffer",
+        "title": "Get the buffer of the point drawn by the user",
+        "description": "This is an example action which returns a buffer around a point drawn by the user",
+        "scope": "project",
+        "icon": "icon-star",
+        "geometry": "point",
+        "options": {
+            "buffer_size": 2000
+        },
+        "style": {
+            "fill-color": "rgba(255,165,0,0.3)",
+            "stroke-width": 4,
+            "stroke-color": "rgba(255,0,0,0.8)"
+        },
+        "callbacks": []
+    },
     {
         "name": "layer_spatial_extent",
         "title": "Get the contour of all the layer features",

tests/qgis-projects/tests/set_tests_module_action.sql

@@ -53,6 +53,7 @@ DECLARE
     wkt text;
     map_center text;
     map_extent text;
+    action_geometry text;
     sqltext text;
     datasource text;
     ajson json;
@@ -67,6 +68,7 @@ BEGIN
     layer_table:= parameters->>'layer_table';
     map_center:= parameters->>'map_center';
     map_extent:= parameters->>'map_extent';
+    action_geometry:= parameters->>'action_geometry';
     layer_srid:= 0;
     feature_id:= (parameters->>'feature_id')::integer;
     wkt:= parameters->>'wkt';
@@ -97,7 +99,7 @@ BEGIN
     -- selects an action in the list, then click on the button
     IF action_scope = 'project' THEN
 
-        -- Return the buffer 500m of map center point
+        -- Return the buffer 2000m of map center point
         IF action_name = 'project_map_center_buffer' AND trim(map_center) != '' THEN
             datasource:= format(
                 $$
@@ -114,6 +116,23 @@ BEGIN
                 map_center,
                 parameters->>'buffer_size'
             );
+        -- Return the buffer 2000m of point drawn by user
+        ELSEIF action_name = 'project_map_drawn_point_buffer' AND trim(action_geometry) != '' THEN
+            datasource:= format(
+                $$
+                    SELECT
+                    1 AS id,
+                    '%1$s' AS project,
+                    ST_Buffer(
+                        ST_GeomFromText('%2$s', 4326)::geography,
+                        %3$s
+                    )::geometry(POLYGON, 4326) AS geom,
+                    'The displayed geometry represents the buffer %3$s m of the point drawn by the user' AS message
+                $$,
+                lizmap_project,
+                action_geometry,
+                parameters->>'buffer_size'
+            );
         END IF;
 
     -- actions for the layer scope