Merge pull request #56 from goderbauer/addOffset

add offset and getBoundingClientRect

dart/lib/async/html.dart

@@ -17,6 +17,7 @@ library pageloader.async.html;
 
 import 'dart:async';
 import 'dart:html';
+import 'dart:math';
 import 'dart:mirrors' hide Comment;
 import 'dart:svg' show SvgElement;
 
@@ -197,6 +198,14 @@ abstract class HtmlPageLoaderElement implements PageLoaderElement {
   @override
   Stream<String> get classes async* {}
 
+  @override
+  Future<Rectangle> getBoundingClientRect() => throw new PageLoaderException(
+      '$runtimeType.getBoundingClientRect() is unsupported');
+
+  @override
+  Future<Rectangle> get offset =>
+      throw new PageLoaderException('$runtimeType.offset is unsupported');
+
   @override
   Future clear({bool sync: true, bool blurAfter: true}) async =>
       throw new PageLoaderException('$runtimeType.clear() is unsupported');
@@ -257,6 +266,13 @@ class _ElementPageLoaderElement extends HtmlPageLoaderElement {
   @override
   Stream<String> get classes => new Stream.fromIterable(node.classes);
 
+  @override
+  Future<Rectangle> getBoundingClientRect() async =>
+      node.getBoundingClientRect();
+
+  @override
+  Future<Rectangle> get offset async => node.offset;
+
   @override
   Future click({bool sync: true}) => loader.executeSynced(() {
         if (node is OptionElement) {

dart/lib/async/src/interfaces.dart

@@ -14,6 +14,7 @@
 library pageloader.async.interfaces;
 
 import 'dart:async';
+import 'dart:math';
 
 typedef Future<T> SyncedExecutionFn<T>(Future<T> fn());
 
@@ -61,6 +62,9 @@ abstract class PageLoaderElement {
   Future<bool> get displayed;
   Stream<String> get classes;
 
+  Future<Rectangle> get offset;
+  Future<Rectangle> getBoundingClientRect();
+
   Stream<PageLoaderElement> getElementsByCss(String selector);
 
   Future clear({bool sync: true, bool blurAfter: true});

dart/lib/async/webdriver.dart

@@ -16,6 +16,7 @@
 library pageloader.async.webdriver;
 
 import 'dart:async';
+import 'dart:math';
 
 import 'package:webdriver/core.dart' as wd;
 
@@ -144,6 +145,14 @@ abstract class WebDriverPageLoaderElement implements PageLoaderElement {
   @override
   Stream<String> get classes async* {}
 
+  @override
+  Future<Rectangle> getBoundingClientRect() => throw new PageLoaderException(
+      '$runtimeType.getBoundingClientRect() is unsupported');
+
+  @override
+  Future<Rectangle> get offset =>
+      throw new PageLoaderException('$runtimeType.offset is unsupported');
+
   @override
   Future clear({bool sync: true, bool blurAfter: true}) async =>
       throw new PageLoaderException('$runtimeType.clear() is unsupported');
@@ -222,6 +231,28 @@ class _WebElementPageLoaderElement extends WebDriverPageLoaderElement {
     }
   }
 
+  @override
+  Future<Rectangle> getBoundingClientRect() async {
+    var rect = await context.driver
+        .execute('return arguments[0].getBoundingClientRect();', [context]);
+    return new Rectangle(
+        rect['left'], rect['top'], rect['width'], rect['height']);
+  }
+
+  @override
+  Future<Rectangle> get offset async {
+    var rect = await context.driver.execute(
+        '''return {
+          left: arguments[0].offsetLeft,
+          top: arguments[0].offsetTop,
+          width: arguments[0].offsetWidth,
+          height: arguments[0].offsetHeight
+        }''',
+        [context]);
+    return new Rectangle(
+        rect['left'], rect['top'], rect['width'], rect['height']);
+  }
+
   @override
   Future clear({bool sync: true, bool blurAfter: true}) =>
       loader.executeSynced(() async {

dart/pubspec.yaml

@@ -1,5 +1,5 @@
 name: pageloader
-version: 2.0.0-pre.10
+version: 2.0.0-pre.11
 author: Marc Fisher II <[email protected]>
 description: >
   Supports the creation of page objects that can be shared between in-browser tests