Fix #1081, switch to next/previous window

extension/intents/window/window.js

@@ -0,0 +1,42 @@
+import * as intentRunner from "../../background/intentRunner.js";
+
+function findTargetWindowId(windowArray, currentWindowId, direction) {
+    const len = windowArray.length;
+    // find currentWindowId postion in array
+    const currentWindowIndex = windowArray.findIndex((window) => (window.id === currentWindowId));
+    let targetIndex = 0;
+    if ( direction === "next" ) {
+      targetIndex = Math.floor((currentWindowIndex + 1) % len);
+    } else {
+      targetIndex = Math.floor((currentWindowIndex - 1 + len) % len);
+    }
+    return windowArray[targetIndex].id;
+  }
+// error handle for
+function onError(error) {
+  // console.log(`Error: ${error}`);
+}
+
+intentRunner.registerIntent({
+    name: "window.switch",
+    async run(context) {
+        // get current activeTab.windowId
+        const activeTab = await context.activeTab();
+        const currentWindowId = activeTab.windowId;
+        // get direction parameter
+        let direction = "next";
+        if ( context.parameters ) {
+           direction = context.parameters.direction;
+        }
+        try {
+          // getAll normal window
+          const gettingAll = await browser.windows.getAll({windowTypes: ["normal"]});
+          // find target windowId
+          const targetWindowId = findTargetWindowId(gettingAll, currentWindowId, direction);
+          // set target window focuse true
+          await browser.windows.update(targetWindowId, {focused: true});
+        } catch (err) {
+          onError(err);
+        }
+    }
+  });

extension/intents/window/window.toml

@@ -0,0 +1,6 @@
+[window.switch]
+description = "Switch the current window"
+match = """
+  switch to next window [direction=next]
+  switch to previous window [direction=back]
+"""