Enable find-in-page across GuestViews.

chrome/test/data/extensions/platform_apps/web_view/shim/main.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 var util = {};
 var embedder = {};
 embedder.baseGuestURL = '';
 embedder.emptyGuestURL = '';
 embedder.windowOpenGuestURL = '';
 embedder.noReferrerGuestURL = '';
@@ skipping 2538 matching lines @@
               );
             }
           );
         }
       );
     });
   });
   document.body.appendChild(webview);
 };
 
+var testFindPage =
+    'data:text/html,Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
+    'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
+    'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
+    'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
+    'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
+    'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
+    'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
+    'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
+    'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
+    'Dog dog dog Dog dog dogcatDog dogDogdog.<br><br>' +
+    '<a href="about:blank">Click here!</a>';
+
 function testFindAPI() {
   var webview = new WebView();
-  webview.src = 'data:text/html,Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
-      'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
-      'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
-      'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
-      'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
-      'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
-      'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
-      'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
-      'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
-      'Dog dog dog Dog dog dogcatDog dogDogdog.<br><br>' +
-      '<a href="about:blank">Click here!</a>';
+  webview.src = testFindPage;
 
   var loadstopListener2 = function(e) {
     embedder.test.assertEq(webview.src, "about:blank");
     // Test find results when looking for nothing.
     webview.find("", {}, function(results) {
       embedder.test.assertEq(results.numberOfMatches, 0);
       embedder.test.assertEq(results.activeMatchOrdinal, 0);
       embedder.test.assertEq(results.selectionRect.left, 0);
       embedder.test.assertEq(results.selectionRect.top, 0);
       embedder.test.assertEq(results.selectionRect.width, 0);
@@ skipping 53 matching lines @@
       });
     });
   };
 
   webview.addEventListener('loadstop', loadstopListener1);
   document.body.appendChild(webview);
 };
 
 function testFindAPI_findupdate() {
   var webview = new WebView();
-  webview.src = 'data:text/html,Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
-      'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
-      'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
-      'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
-      'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
-      'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
-      'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
-      'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
-      'Dog dog dog Dog dog dogcatDog dogDogdog.<br>' +
-      'Dog dog dog Dog dog dogcatDog dogDogdog.<br><br>' +
-      '<a href="about:blank">Click here!</a>';
+  webview.src = testFindPage;
+
   var canceledTest = false;
   webview.addEventListener('loadstop', function(e) {
     // Test the |findupdate| event.
     webview.addEventListener('findupdate', function(e) {
       if (e.activeMatchOrdinal > 0) {
         // embedder.test.assertTrue(e.numberOfMatches >= e.activeMatchOrdinal)
         // This currently fails because of http://crbug.com/342445 .
         embedder.test.assertTrue(e.selectionRect.width > 0);
         embedder.test.assertTrue(e.selectionRect.height > 0);
       }
@@ skipping 11 matching lines @@
       }
     });
     wv.find("dog");
     wv.find("cat");
     wv.find("dog");
   });
 
   document.body.appendChild(webview);
 };
 
+function testFindInMultipleWebViews() {
+  var webviews = [new WebView(), new WebView(), new WebView()];
+  var success = [];
+  for (var i in webviews) {
+    webviews[i].src = testFindPage;
+    success[i] = false;
+  }
+
+  var loadstopListener = function(id, e) {
+    LOG("Searching WebView " + id + ".");
+
+    // Test find results.
+    webviews[id].find("dog", {}, function(results) {
+      embedder.test.assertEq(results.numberOfMatches, 100);
+      embedder.test.assertTrue(results.selectionRect.width > 0);
+      embedder.test.assertTrue(results.selectionRect.height > 0);
+
+      // Test finding next active matches.
+      webviews[id].find("dog");
+      webviews[id].find("dog");
+      webviews[id].find("dog");
+      webviews[id].find("dog");
+      webviews[id].find("dog", {}, function(results) {
+        embedder.test.assertEq(results.activeMatchOrdinal, 6);
+
+        LOG("Searched WebView " + id + " successfully.");
+        success[id] = true;
+        for (var i in success) {

[ncarter (slow), 2017/03/27 23:21:36]

You can use Promise.all here to avoid the |success| array, and stop the test
early if there's a failure.

 function testFindInMultipleWebViews() {
   var webviews = [new WebView(), new WebView(), new WebView()];
   var promises = [];
 
   // Search in all WebViews simultaneously.
   for (var i in webviews) {
     var webview = webviews[i];
     webview.src = testFindPage;
     promises[i] = new Promise((resolve, reject) => {
       webview.addEventListener('loadstop', (event) => {
         webview.find("dog", {}, (results_a) => {
           embedder.test.assertEq(results_a.numberOfMatches, 100);
           embedder.test.assertTrue(results_a.selectionRect.width > 0);
           embedder.test.assertTrue(results_a.selectionRect.height > 0);

           // Test finding next active matches.
           webview.find("dog");
           webview.find("dog");
           webview.find("dog");
           webview.find("dog");
           webview.find("dog", {}, (results_b) => {
             embedder.test.assertEq(results_b.activeMatchOrdinal, 6);
             LOG("Searched WebView " + i + " successfully.");
             resolve();
           });
         });
       });
     });
     document.body.appendChild(webviews[i]);
   }

   Promise.all(promises)
       .then(() => {
         LOG("All searches finished.");
         embedder.test.succeed();
       })
       .catch((error) => {
         LOG("Failing test.");
         embedder.test.fail(error);
       });
 }

[paulmeyer, 2017/03/31 18:31:16]

Okay, I've replaced the test with your code mostly, except that you can't use
the |webview| and |i| variables the way that you have them captured here (all
callbacks will get the same webview in this case), so I've fixed that.

+          if (!success[i]) {
+            return;
+          }
+        }
+
+        // The test only succeeds once all WebViews have been searched
+        // successfully.
+        embedder.test.succeed();
+      });
+    });
+  };
+
+  // Search in all WebViews simultaneously.
+  for (var i in webviews) {
+    webviews[i].addEventListener(
+        'loadstop', loadstopListener.bind(undefined, i));
+    document.body.appendChild(webviews[i]);
+  }
+}
+
 function testLoadDataAPI() {
   var webview = new WebView();
   webview.src = 'about:blank';
 
   var loadstopListener2 = function(e) {
     // Test the virtual URL.
     embedder.test.assertEq(webview.src, embedder.virtualURL);
 
     // Test that the image was loaded from the right source.
     webview.executeScript(
@@ skipping 438 matching lines @@
   'testRemoveWebviewOnExit': testRemoveWebviewOnExit,
   'testRemoveWebviewAfterNavigation': testRemoveWebviewAfterNavigation,
   'testResizeWebviewResizesContent': testResizeWebviewResizesContent,
   'testResizeWebviewWithDisplayNoneResizesContent':
       testResizeWebviewWithDisplayNoneResizesContent,
   'testPostMessageCommChannel': testPostMessageCommChannel,
   'testScreenshotCapture' : testScreenshotCapture,
   'testZoomAPI' : testZoomAPI,
   'testFindAPI': testFindAPI,
   'testFindAPI_findupdate': testFindAPI,
+  'testFindInMultipleWebViews': testFindInMultipleWebViews,
   'testLoadDataAPI': testLoadDataAPI,
   'testResizeEvents': testResizeEvents,
   'testPerOriginZoomMode': testPerOriginZoomMode,
   'testPerViewZoomMode': testPerViewZoomMode,
   'testDisabledZoomMode': testDisabledZoomMode,
   'testZoomBeforeNavigation': testZoomBeforeNavigation,
   'testPlugin': testPlugin,
   'testGarbageCollect': testGarbageCollect,
   'testCloseNewWindowCleanup': testCloseNewWindowCleanup,
   'testFocusWhileFocused': testFocusWhileFocused,
   'testPDFInWebview': testPDFInWebview,
   'testNavigateToPDFInWebview': testNavigateToPDFInWebview,
   'testMailtoLink': testMailtoLink,
   'testRendererNavigationRedirectWhileUnattached':
        testRendererNavigationRedirectWhileUnattached,
   'testBlobURL': testBlobURL
 };
 
 onload = function() {
   chrome.test.getConfig(function(config) {
     embedder.setUp_(config);
     chrome.test.sendMessage("Launched");
   });
 };