fix: Add workaround for setting the window position (#271)

lib/commands/general.js

@@ -47,12 +47,33 @@ commands.getWindowSize = async function getWindowSize () {
 // a workaround for https://github.com/appium/appium/issues/15923
 commands.getWindowRect = async function getWindowRect () {
   const {width, height} = await this.getWindowSize();
-  return {x: 0, y: 0, width, height};
+  let [x, y] = [0, 0];
+  try {
+    const handle = await this.winAppDriver.sendCommand('/window_handle', 'GET');
+    ({x, y} = await this.winAppDriver.sendCommand(`/window/${handle}/position`, 'GET'));
+  } catch (e) {
+    this.log.warn(
+      `Cannot fetch the window position. Defaulting to zeroes. Original error: ${e.message}`
+    );
+  }
+  return {x, y, width, height};
 };
 
 // a workaround for https://github.com/appium/appium/issues/15923
 commands.setWindowRect = async function setWindowRect (x, y, width, height) {
-  await this.winAppDriver.sendCommand('/window/size', 'POST', {width, height});
+  let didProcess = false;
+  if (!_.isNil(width) && !_.isNil(height)) {
+    await this.winAppDriver.sendCommand('/window/size', 'POST', {width, height});
+    didProcess = true;
+  }
+  if (!_.isNil(x) && !_.isNil(y)) {
+    const handle = await this.winAppDriver.sendCommand('/window_handle', 'GET');
+    await this.winAppDriver.sendCommand(`/window/${handle}/position`, 'POST', {x, y});
+    didProcess = true;
+  }
+  if (!didProcess) {
+    this.log.info('Either x and y or width and height must be defined. Doing nothing');
+  }
 };
 
 commands.getScreenshot = async function getScreenshot () {