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.getElementById('action-digitizing')?.remove();
+
         // Get the host component
         let host = event.target.closest("lizmap-action-selector");
 
@@ -93,6 +96,18 @@ export default class ActionSelector extends HTMLElement {
             if ('description' in action && action.description) {
                 description = action.description;
             }
+            if (action?.geometry) {
+                const actionDigitizing = `<div id="action-digitizing"><lizmap-digitizing context="action" selected-tool="${action.geometry}" available-tools="${action.geometry}"></lizmap-digitizing><div id="action-message-html"></div></div>`;
+                document.querySelector('.action-selector-container').insertAdjacentHTML('afterend', actionDigitizing);
+                mainLizmap.digitizing.context = "action";
+                mainLizmap.digitizing.toggleVisibility(true);
+            } else {
+                mainLizmap.digitizing.toolSelected = 'deactivate'
+                mainLizmap.digitizing.toggleVisibility(false);
+            }
+        } else {
+            mainLizmap.digitizing.toolSelected = 'deactivate'
+            mainLizmap.digitizing.toggleVisibility(false);
         }
 
         descriptionSpan.textContent = description;
@@ -117,6 +132,7 @@ export default class ActionSelector extends HTMLElement {
 
     onActionDeactivateClick(event) {
         // Deactivate the current active action
+        mainLizmap.digitizing.eraseAll();
         mainLizmap.action.resetLizmapAction();
     }
 

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';
+                }
+            }
+        });
     }
 
     /**
@@ -376,11 +382,22 @@ export default class Action {
             return false;
         }
 
+        const WKTformat = new WKT();
+        const projOptions = {
+            featureProjection: mainLizmap.projection,
+            dataProjection: 'EPSG:4326'
+        };
+
         // Reset the other actions
         // We allow only one active action at a time
         // We do not remove the active status of the button (btn-primary)
         this.resetLizmapAction(true, true, true, false);
 
+        // Take drawn geometry if any and if none exists as a parameter
+        if (!wkt && mainLizmap.digitizing.context === "action" && mainLizmap.digitizing.featureDrawn) {
+            wkt = WKTformat.writeFeatures(mainLizmap.digitizing.featureDrawn, projOptions);
+        }
+
         // Set the request parameters
         let options = {
             "layerId": layerId,
@@ -391,11 +408,6 @@ export default class Action {
 
         // We add the map extent and center
         // as WKT geometries
-        const WKTformat = new WKT();
-        const projOptions = {
-            featureProjection: mainLizmap.projection,
-            dataProjection: 'EPSG:4326'
-        };
         options['mapExtent'] = WKTformat.writeGeometry(fromExtent(mainLizmap.extent), projOptions);
         options['mapCenter'] = WKTformat.writeGeometry(new Point(mainLizmap.center), projOptions);
 
@@ -444,6 +456,12 @@ export default class Action {
                     if (message) {
                         mainLizmap.lizmap3.addMessage(message, 'info', true).attr('id', 'lizmap-action-message');
                     }
+
+                    // Display the HTML message if given
+                    const message_html = featureProperties?.message_html?.trim();
+                    if (message_html) {
+                        document.getElementById('action-message-html').innerHTML = message_html;
+                    }
                 }
             }
 

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

@@ -97,7 +97,7 @@ 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(
                 $$
@@ -114,6 +114,24 @@ BEGIN
                 map_center,
                 parameters->>'buffer_size'
             );
+        -- Return the buffer 2000m of point drawn by user
+        ELSEIF action_name = 'project_map_drawn_point_buffer' AND trim(wkt) != '' THEN
+            datasource:= format(
+                $$
+                    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,
+                    '<p>The displayed geometry represents the buffer <strong>%3$s m</strong> of the point drawn by the user</p>' AS message_html
+                $$,
+                lizmap_project,
+                wkt,
+                parameters->>'buffer_size'
+            );
         END IF;
 
     -- actions for the layer scope