fix: take element screenshot (#24)

* fix: takeElementScreenshot

lib/controllers.js

@@ -194,30 +194,9 @@ controllers.click = async function(elementId) {
  * @module takeElementScreenshot
  * @return {Promise}
  */
-controllers.takeElementScreenshot = async function(_, params = {}) {
+controllers.takeElementScreenshot = async function(elementId, params = {}) {
   const { file } = params;
-  let { selector, strategy } = params;
-
-  if (selector && selector.startsWith('//')) {
-    strategy = 'xpath';
-  }
-
-  if (strategy === 'name') {
-    selector = `text=${selector}`;
-  } else if (strategy === 'id') {
-    selector = `//*[@id="${selector}"]`;
-  }
-
-  if (strategy) {
-    this.locator = await this.page.locator(selector);
-  } else {
-    this.locator = await this.page.$(selector);
-  }
-
-  if (!this.locator) {
-    throw new errors.NoSuchElement();
-  }
-  const image = await this.locator.screenshot();
+  const image = await this.elements[elementId].screenshot();
   const base64 = image.toString('base64');
   if (file) {
     const img = new Buffer(base64, 'base64');

package.json

@@ -1,6 +1,6 @@
 {
   "name": "macaca-playwright",
-  "version": "1.7.0",
+  "version": "1.8.0",
   "description": "Macaca Playwright driver",
   "keywords": [
     "playwright",
@@ -41,7 +41,8 @@
   },
   "scripts": {
     "test": "nyc --reporter=lcov --reporter=text mocha --require ts-node/register",
-    "lint": "eslint --ext js,ts --fix lib test",
+    "lint": "eslint --ext js,ts lib test",
+    "lint:fix": "eslint --ext js,ts --fix lib test",
     "prepublishOnly": "npm run build",
     "build": "sh ./build.sh",
     "contributor": "git-contributor"