desklets: Allow desklets to be locked in place.

All at once, not individually.

Fixes #3767
Fixes #9622

Author: mtwebster

data/org.cinnamon.gschema.xml

@@ -94,7 +94,10 @@
       <summary>The interval between each possible grid position when desklets "snap"</summary>
       <description>If desklet-snap is enabled, the possible positions of desklets will be all integer multiples of the value of "desklet-snap-size"</description>
     </key>
-
+    <key name="lock-desklets" type="b">
+      <default>false</default>
+      <summary> Locks the current position of all desklets and prevents dragging</summary>
+    </key>
     <key name="panels-enabled" type="as">
       <default>['1:0:bottom']</default>
       <summary>List of panels used</summary>

files/usr/share/cinnamon/cinnamon-settings/modules/cs_desklets.py

@@ -69,6 +69,9 @@ def load(self, window):
         settings.add_row(GSettingsSwitch(_("Snap desklets to grid"), "org.cinnamon", "desklet-snap"))
         settings.add_reveal_row(GSettingsSpinButton(_("Width of desklet snap grid"), "org.cinnamon", "desklet-snap-interval", "", 0, 100, 1, 5), "org.cinnamon", "desklet-snap")
 
+        settings = page.add_section("")
+        settings.add_row(GSettingsSwitch(_("Lock desklets in their current position"), "org.cinnamon", "lock-desklets"))
+
 class ManageDeskletsPage(ManageSpicesPage):
     directories = [("%s/.local/share/cinnamon/desklets") % GLib.get_home_dir(), "/usr/share/cinnamon/desklets"]
     collection_type = "desklet"

js/ui/deskletManager.js

@@ -38,6 +38,7 @@ const DESKLET_SNAP_KEY = 'desklet-snap';
 const DESKLET_SNAP_INTERVAL_KEY = 'desklet-snap-interval';
 const KEYBINDING_SCHEMA = 'org.cinnamon.desktop.keybindings';
 const SHOW_DESKLETS_KEY = 'show-desklets';
+const LOCK_DESKLETS_KEY = "lock-desklets";
 
 function initEnabledDesklets() {
     for (let i = 0; i < definitions.length; i++) {
@@ -445,6 +446,8 @@ DeskletContainer.prototype = {
                 this.lower();
             }
         });
+
+        global.settings.connect('changed::' + LOCK_DESKLETS_KEY, () => this.onDeskletsLockedChanged());
     },
 
     applyKeyBindings: function() {
@@ -463,6 +466,7 @@ DeskletContainer.prototype = {
      */
     addDesklet: function(actor){
         this.actor.add_actor(actor);
+        actor._delegate._draggable.inhibit = global.settings.get_boolean(LOCK_DESKLETS_KEY);
     },
 
     /**
@@ -477,6 +481,12 @@ DeskletContainer.prototype = {
         return this.actor.contains(actor);
     },
 
+    onDeskletsLockedChanged: function(settings, key) {
+        this.actor.get_children().forEach((deskletActor) => {
+            deskletActor._delegate._draggable.inhibit = global.settings.get_boolean(LOCK_DESKLETS_KEY);
+        });
+    },
+
     handleDragOver: function(source, actor, x, y, time) {
         deskletsDragging = true;