Merge pull request #9 from dstolpmann/master

Hide minimized windows in screenshot UI

extension.js

@@ -1,7 +1,16 @@
+const Config = imports.misc.config;
+const [major] = Config.PACKAGE_VERSION.split('.');
+const shellVersion = Number.parseInt(major);
+
 const isOverviewWindow = imports.ui.workspace.Workspace.prototype._isOverviewWindow;
 const { Workspace } = imports.ui.workspace;
 const { altTab } = imports.ui;
 const { getWindows } = altTab;
+if(shellVersion >= 42) {
+  var capture = imports.ui.screenshot.UIWindowSelector.prototype.capture;
+  var { UIWindowSelector, UIWindowSelectorWindow } = imports.ui.screenshot;
+  var Main = imports.ui.main;
+}
 
 function init() {
 }
@@ -18,9 +27,50 @@ function enable() {
     const windows = getWindows(workspace);
     return windows.filter((w, i, a) => !w.minimized);
   };
+  if(shellVersion >= 42) {
+    // Patched version of original function from:
+    // https://gitlab.gnome.org/GNOME/gnome-shell/-/blob/main/js/ui/screenshot.js
+    UIWindowSelector.prototype.capture = function() {
+      for (const actor of global.get_window_actors()) {
+        let window = actor.metaWindow;
+        let workspaceManager = global.workspace_manager;
+        let activeWorkspace = workspaceManager.get_active_workspace();
+        if (window.is_override_redirect() ||
+            !window.located_on_workspace(activeWorkspace) ||
+            window.get_monitor() !== this._monitorIndex ||
+            window.minimized)
+            continue;
+
+        const widget = new UIWindowSelectorWindow(
+            actor,
+            {
+                style_class: 'screenshot-ui-window-selector-window',
+                reactive: true,
+                can_focus: true,
+                toggle_mode: true,
+            }
+        );
+
+        widget.connect('key-focus-in', win => {
+            Main.screenshotUI.grab_key_focus();
+            win.checked = true;
+        });
+
+        if (window.has_focus()) {
+            widget.checked = true;
+            widget.toggle_mode = false;
+        }
+
+        this._layoutManager.addWindow(widget);
+      }
+    };
+  }
 }
 
 function disable() {
   Workspace.prototype._isOverviewWindow = isOverviewWindow;
   altTab.getWindows = getWindows;
+  if(shellVersion >= 42) {
+    UIWindowSelector.prototype.capture = capture;
+  }
 }