| // Copyright 2014 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. |
| |
| #include "base/logging.h" |
| #include "content/browser/accessibility/browser_accessibility.h" |
| #include "content/browser/accessibility/browser_accessibility_manager.h" |
| #include "content/browser/web_contents/web_contents_impl.h" |
| #include "content/public/test/browser_test_utils.h" |
| #include "content/public/test/content_browser_test.h" |
| #include "content/public/test/content_browser_test_utils.h" |
| #include "content/public/test/test_utils.h" |
| #include "content/shell/browser/shell.h" |
| #include "content/test/accessibility_browser_test_utils.h" |
| #include "net/dns/mock_host_resolver.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace content { |
| |
| class AccessibilityHitTestingBrowserTest : public ContentBrowserTest { |
| public: |
| AccessibilityHitTestingBrowserTest() {} |
| ~AccessibilityHitTestingBrowserTest() override {} |
| |
| protected: |
| BrowserAccessibility* HitTestAndWaitForResultWithEvent( |
| const gfx::Point& point, |
| ui::AXEvent event_to_fire) { |
| WebContentsImpl* web_contents = |
| static_cast<WebContentsImpl*>(shell()->web_contents()); |
| FrameTree* frame_tree = web_contents->GetFrameTree(); |
| BrowserAccessibilityManager* manager = |
| web_contents->GetRootBrowserAccessibilityManager(); |
| |
| AccessibilityNotificationWaiter event_waiter( |
| shell()->web_contents(), ui::kAXModeComplete, event_to_fire); |
| for (FrameTreeNode* node : frame_tree->Nodes()) |
| event_waiter.ListenToAdditionalFrame(node->current_frame_host()); |
| ui::AXActionData action_data; |
| action_data.action = ui::AX_ACTION_HIT_TEST; |
| action_data.target_point = point; |
| action_data.hit_test_event_to_fire = event_to_fire; |
| manager->delegate()->AccessibilityPerformAction(action_data); |
| event_waiter.WaitForNotification(); |
| |
| RenderFrameHostImpl* target_frame = event_waiter.event_render_frame_host(); |
| BrowserAccessibilityManager* target_manager = |
| target_frame->browser_accessibility_manager(); |
| int event_target_id = event_waiter.event_target_id(); |
| BrowserAccessibility* hit_node = target_manager->GetFromID(event_target_id); |
| return hit_node; |
| } |
| |
| BrowserAccessibility* HitTestAndWaitForResult(const gfx::Point& point) { |
| return HitTestAndWaitForResultWithEvent(point, ui::AX_EVENT_HOVER); |
| } |
| |
| BrowserAccessibility* CallCachingAsyncHitTest(const gfx::Point& point) { |
| WebContentsImpl* web_contents = |
| static_cast<WebContentsImpl*>(shell()->web_contents()); |
| FrameTree* frame_tree = web_contents->GetFrameTree(); |
| BrowserAccessibilityManager* manager = |
| web_contents->GetRootBrowserAccessibilityManager(); |
| gfx::Point screen_point = |
| point + manager->GetViewBounds().OffsetFromOrigin(); |
| |
| // Each call to CachingAsyncHitTest results in at least one HOVER |
| // event received. Block until we receive it. |
| AccessibilityNotificationWaiter hover_waiter( |
| shell()->web_contents(), ui::kAXModeComplete, ui::AX_EVENT_HOVER); |
| for (FrameTreeNode* node : frame_tree->Nodes()) |
| hover_waiter.ListenToAdditionalFrame(node->current_frame_host()); |
| BrowserAccessibility* result = manager->CachingAsyncHitTest(screen_point); |
| hover_waiter.WaitForNotification(); |
| return result; |
| } |
| }; |
| |
| IN_PROC_BROWSER_TEST_F(AccessibilityHitTestingBrowserTest, |
| HitTestOutsideDocumentBoundsReturnsRoot) { |
| NavigateToURL(shell(), GURL(url::kAboutBlankURL)); |
| |
| // Load the page. |
| AccessibilityNotificationWaiter waiter( |
| shell()->web_contents(), ui::kAXModeComplete, ui::AX_EVENT_LOAD_COMPLETE); |
| const char url_str[] = |
| "data:text/html," |
| "<!doctype html>" |
| "<html><head><title>Accessibility Test</title></head>" |
| "<body>" |
| "<a href='#'>" |
| "This is some text in a link" |
| "</a>" |
| "</body></html>"; |
| GURL url(url_str); |
| NavigateToURL(shell(), url); |
| waiter.WaitForNotification(); |
| |
| BrowserAccessibility* hit_node = HitTestAndWaitForResult(gfx::Point(-1, -1)); |
| ASSERT_TRUE(hit_node != NULL); |
| ASSERT_EQ(ui::AX_ROLE_ROOT_WEB_AREA, hit_node->GetRole()); |
| } |
| |
| IN_PROC_BROWSER_TEST_F(AccessibilityHitTestingBrowserTest, |
| HitTestingInIframes) { |
| ASSERT_TRUE(embedded_test_server()->Start()); |
| |
| NavigateToURL(shell(), GURL(url::kAboutBlankURL)); |
| |
| AccessibilityNotificationWaiter waiter( |
| shell()->web_contents(), ui::kAXModeComplete, ui::AX_EVENT_LOAD_COMPLETE); |
| GURL url(embedded_test_server()->GetURL( |
| "/accessibility/html/iframe-coordinates.html")); |
| NavigateToURL(shell(), url); |
| waiter.WaitForNotification(); |
| |
| WaitForAccessibilityTreeToContainNodeWithName( |
| shell()->web_contents(), "Ordinary Button"); |
| WaitForAccessibilityTreeToContainNodeWithName( |
| shell()->web_contents(), "Scrolled Button"); |
| |
| // Send a series of hit test requests, and for each one |
| // wait for the hover event in response, verifying we hit the |
| // correct object. |
| |
| // (50, 50) -> "Button" |
| BrowserAccessibility* hit_node; |
| hit_node = HitTestAndWaitForResult(gfx::Point(50, 50)); |
| ASSERT_TRUE(hit_node != NULL); |
| ASSERT_EQ(ui::AX_ROLE_BUTTON, hit_node->GetRole()); |
| ASSERT_EQ("Button", hit_node->GetStringAttribute(ui::AX_ATTR_NAME)); |
| |
| // (50, 305) -> div in first iframe |
| hit_node = HitTestAndWaitForResult(gfx::Point(50, 305)); |
| ASSERT_TRUE(hit_node != NULL); |
| ASSERT_EQ(ui::AX_ROLE_GENERIC_CONTAINER, hit_node->GetRole()); |
| |
| // (50, 350) -> "Ordinary Button" |
| hit_node = HitTestAndWaitForResult(gfx::Point(50, 350)); |
| ASSERT_TRUE(hit_node != NULL); |
| ASSERT_EQ(ui::AX_ROLE_BUTTON, hit_node->GetRole()); |
| ASSERT_EQ("Ordinary Button", hit_node->GetStringAttribute(ui::AX_ATTR_NAME)); |
| |
| // (50, 455) -> "Scrolled Button" |
| hit_node = HitTestAndWaitForResult(gfx::Point(50, 455)); |
| ASSERT_TRUE(hit_node != NULL); |
| ASSERT_EQ(ui::AX_ROLE_BUTTON, hit_node->GetRole()); |
| ASSERT_EQ("Scrolled Button", hit_node->GetStringAttribute(ui::AX_ATTR_NAME)); |
| |
| // (50, 505) -> div in second iframe |
| hit_node = HitTestAndWaitForResult(gfx::Point(50, 505)); |
| ASSERT_TRUE(hit_node != NULL); |
| ASSERT_EQ(ui::AX_ROLE_GENERIC_CONTAINER, hit_node->GetRole()); |
| |
| // (50, 505) -> div in second iframe |
| // but with a different event |
| hit_node = |
| HitTestAndWaitForResultWithEvent(gfx::Point(50, 505), ui::AX_EVENT_ALERT); |
| ASSERT_NE(hit_node, nullptr); |
| ASSERT_EQ(ui::AX_ROLE_GENERIC_CONTAINER, hit_node->GetRole()); |
| } |
| |
| IN_PROC_BROWSER_TEST_F(AccessibilityHitTestingBrowserTest, |
| CachingAsyncHitTestingInIframes) { |
| ASSERT_TRUE(embedded_test_server()->Start()); |
| |
| NavigateToURL(shell(), GURL(url::kAboutBlankURL)); |
| |
| AccessibilityNotificationWaiter waiter( |
| shell()->web_contents(), ui::kAXModeComplete, ui::AX_EVENT_LOAD_COMPLETE); |
| GURL url(embedded_test_server()->GetURL( |
| "/accessibility/hit_testing/hit_testing.html")); |
| NavigateToURL(shell(), url); |
| waiter.WaitForNotification(); |
| |
| WaitForAccessibilityTreeToContainNodeWithName( |
| shell()->web_contents(), "Ordinary Button"); |
| WaitForAccessibilityTreeToContainNodeWithName( |
| shell()->web_contents(), "Scrolled Button"); |
| |
| // For each point we try, the first time we call CachingAsyncHitTest it |
| // should FAIL and return the wrong object, because this test page has |
| // been designed to confound local synchronous hit testing using |
| // z-indexes. However, calling CachingAsyncHitTest a second time should |
| // return the correct result (since CallCachingAsyncHitTest waits for the |
| // HOVER event to be received). |
| |
| // (50, 50) -> "Button" |
| BrowserAccessibility* hit_node; |
| hit_node = CallCachingAsyncHitTest(gfx::Point(50, 50)); |
| ASSERT_TRUE(hit_node != NULL); |
| ASSERT_NE(ui::AX_ROLE_BUTTON, hit_node->GetRole()); |
| hit_node = CallCachingAsyncHitTest(gfx::Point(50, 50)); |
| ASSERT_EQ("Button", hit_node->GetStringAttribute(ui::AX_ATTR_NAME)); |
| |
| // (50, 305) -> div in first iframe |
| hit_node = CallCachingAsyncHitTest(gfx::Point(50, 305)); |
| ASSERT_TRUE(hit_node != NULL); |
| ASSERT_NE(ui::AX_ROLE_GENERIC_CONTAINER, hit_node->GetRole()); |
| hit_node = CallCachingAsyncHitTest(gfx::Point(50, 305)); |
| ASSERT_EQ(ui::AX_ROLE_GENERIC_CONTAINER, hit_node->GetRole()); |
| |
| // (50, 350) -> "Ordinary Button" |
| hit_node = CallCachingAsyncHitTest(gfx::Point(50, 350)); |
| ASSERT_TRUE(hit_node != NULL); |
| ASSERT_NE(ui::AX_ROLE_BUTTON, hit_node->GetRole()); |
| hit_node = CallCachingAsyncHitTest(gfx::Point(50, 350)); |
| ASSERT_EQ(ui::AX_ROLE_BUTTON, hit_node->GetRole()); |
| ASSERT_EQ("Ordinary Button", hit_node->GetStringAttribute(ui::AX_ATTR_NAME)); |
| |
| // (50, 455) -> "Scrolled Button" |
| hit_node = CallCachingAsyncHitTest(gfx::Point(50, 455)); |
| ASSERT_TRUE(hit_node != NULL); |
| ASSERT_NE(ui::AX_ROLE_BUTTON, hit_node->GetRole()); |
| hit_node = CallCachingAsyncHitTest(gfx::Point(50, 455)); |
| ASSERT_EQ(ui::AX_ROLE_BUTTON, hit_node->GetRole()); |
| ASSERT_EQ("Scrolled Button", hit_node->GetStringAttribute(ui::AX_ATTR_NAME)); |
| |
| // (50, 505) -> div in second iframe |
| hit_node = CallCachingAsyncHitTest(gfx::Point(50, 505)); |
| ASSERT_TRUE(hit_node != NULL); |
| ASSERT_NE(ui::AX_ROLE_GENERIC_CONTAINER, hit_node->GetRole()); |
| hit_node = CallCachingAsyncHitTest(gfx::Point(50, 505)); |
| ASSERT_EQ(ui::AX_ROLE_GENERIC_CONTAINER, hit_node->GetRole()); |
| } |
| |
| } // namespace content |
