| // 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. |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include <string> |
| #include <unordered_set> |
| #include <vector> |
| |
| #include "base/macros.h" |
| #include "base/strings/utf_string_conversions.h" |
| #include "build/build_config.h" |
| #include "content/browser/renderer_host/render_view_host_impl.h" |
| #include "content/public/browser/notification_service.h" |
| #include "content/public/browser/notification_types.h" |
| #include "content/public/browser/render_widget_host_view.h" |
| #include "content/public/test/content_browser_test.h" |
| #include "content/public/test/content_browser_test_utils.h" |
| #include "content/shell/browser/shell.h" |
| #include "content/test/accessibility_browser_test_utils.h" |
| #include "ui/accessibility/ax_node.h" |
| #include "ui/accessibility/ax_tree.h" |
| |
| #if defined(OS_WIN) |
| #include "base/win/atl.h" |
| #include "base/win/scoped_com_initializer.h" |
| #include "ui/base/win/atl_module.h" |
| #endif |
| |
| // TODO(dmazzoni): Disabled accessibility tests on Win64. crbug.com/179717 |
| #if defined(OS_WIN) && defined(ARCH_CPU_X86_64) |
| #define MAYBE_TableSpan DISABLED_TableSpan |
| #else |
| #define MAYBE_TableSpan TableSpan |
| #endif |
| |
| namespace content { |
| |
| class CrossPlatformAccessibilityBrowserTest : public ContentBrowserTest { |
| public: |
| CrossPlatformAccessibilityBrowserTest() {} |
| |
| // Tell the renderer to send an accessibility tree, then wait for the |
| // notification that it's been received. |
| const ui::AXTree& GetAXTree( |
| ui::AXMode accessibility_mode = ui::kAXModeComplete) { |
| AccessibilityNotificationWaiter waiter(shell()->web_contents(), |
| accessibility_mode, |
| ax::mojom::Event::kLayoutComplete); |
| waiter.WaitForNotification(); |
| return waiter.GetAXTree(); |
| } |
| |
| // Make sure each node in the tree has a unique id. |
| void RecursiveAssertUniqueIds(const ui::AXNode* node, |
| std::unordered_set<int>* ids) { |
| ASSERT_TRUE(ids->find(node->id()) == ids->end()); |
| ids->insert(node->id()); |
| for (int i = 0; i < node->child_count(); i++) |
| RecursiveAssertUniqueIds(node->ChildAtIndex(i), ids); |
| } |
| |
| // ContentBrowserTest |
| void SetUpOnMainThread() override; |
| void TearDownOnMainThread() override; |
| |
| protected: |
| std::string GetAttr(const ui::AXNode* node, |
| const ax::mojom::StringAttribute attr); |
| int GetIntAttr(const ui::AXNode* node, const ax::mojom::IntAttribute attr); |
| bool GetBoolAttr(const ui::AXNode* node, const ax::mojom::BoolAttribute attr); |
| |
| private: |
| #if defined(OS_WIN) |
| std::unique_ptr<base::win::ScopedCOMInitializer> com_initializer_; |
| #endif |
| |
| DISALLOW_COPY_AND_ASSIGN(CrossPlatformAccessibilityBrowserTest); |
| }; |
| |
| void CrossPlatformAccessibilityBrowserTest::SetUpOnMainThread() { |
| #if defined(OS_WIN) |
| ui::win::CreateATLModuleIfNeeded(); |
| com_initializer_.reset(new base::win::ScopedCOMInitializer()); |
| #endif |
| } |
| |
| void CrossPlatformAccessibilityBrowserTest::TearDownOnMainThread() { |
| #if defined(OS_WIN) |
| com_initializer_.reset(); |
| #endif |
| } |
| |
| // Convenience method to get the value of a particular AXNode |
| // attribute as a UTF-8 string. |
| std::string CrossPlatformAccessibilityBrowserTest::GetAttr( |
| const ui::AXNode* node, |
| const ax::mojom::StringAttribute attr) { |
| const ui::AXNodeData& data = node->data(); |
| for (size_t i = 0; i < data.string_attributes.size(); ++i) { |
| if (data.string_attributes[i].first == attr) |
| return data.string_attributes[i].second; |
| } |
| return std::string(); |
| } |
| |
| // Convenience method to get the value of a particular AXNode |
| // integer attribute. |
| int CrossPlatformAccessibilityBrowserTest::GetIntAttr( |
| const ui::AXNode* node, |
| const ax::mojom::IntAttribute attr) { |
| const ui::AXNodeData& data = node->data(); |
| for (size_t i = 0; i < data.int_attributes.size(); ++i) { |
| if (data.int_attributes[i].first == attr) |
| return data.int_attributes[i].second; |
| } |
| return -1; |
| } |
| |
| // Convenience method to get the value of a particular AXNode |
| // boolean attribute. |
| bool CrossPlatformAccessibilityBrowserTest::GetBoolAttr( |
| const ui::AXNode* node, |
| const ax::mojom::BoolAttribute attr) { |
| const ui::AXNodeData& data = node->data(); |
| for (size_t i = 0; i < data.bool_attributes.size(); ++i) { |
| if (data.bool_attributes[i].first == attr) |
| return data.bool_attributes[i].second; |
| } |
| return false; |
| } |
| |
| // Marked flaky per http://crbug.com/101984 |
| IN_PROC_BROWSER_TEST_F(CrossPlatformAccessibilityBrowserTest, |
| DISABLED_WebpageAccessibility) { |
| // Create a data url and load it. |
| const char url_str[] = |
| "data:text/html," |
| "<!doctype html>" |
| "<html><head><title>Accessibility Test</title></head>" |
| "<body><input type='button' value='push' /><input type='checkbox' />" |
| "</body></html>"; |
| GURL url(url_str); |
| NavigateToURL(shell(), url); |
| const ui::AXTree& tree = GetAXTree(); |
| const ui::AXNode* root = tree.root(); |
| |
| // Check properties of thet tree. |
| EXPECT_STREQ(url_str, tree.data().url.c_str()); |
| EXPECT_STREQ("Accessibility Test", tree.data().title.c_str()); |
| EXPECT_STREQ("html", tree.data().doctype.c_str()); |
| EXPECT_STREQ("text/html", tree.data().mimetype.c_str()); |
| |
| // Check properties of the root element of the tree. |
| EXPECT_STREQ("Accessibility Test", |
| GetAttr(root, ax::mojom::StringAttribute::kName).c_str()); |
| EXPECT_EQ(ax::mojom::Role::kRootWebArea, root->data().role); |
| |
| // Check properties of the BODY element. |
| ASSERT_EQ(1, root->child_count()); |
| const ui::AXNode* body = root->ChildAtIndex(0); |
| EXPECT_EQ(ax::mojom::Role::kGroup, body->data().role); |
| EXPECT_STREQ("body", |
| GetAttr(body, ax::mojom::StringAttribute::kHtmlTag).c_str()); |
| EXPECT_STREQ("block", |
| GetAttr(body, ax::mojom::StringAttribute::kDisplay).c_str()); |
| |
| // Check properties of the two children of the BODY element. |
| ASSERT_EQ(2, body->child_count()); |
| |
| const ui::AXNode* button = body->ChildAtIndex(0); |
| EXPECT_EQ(ax::mojom::Role::kButton, button->data().role); |
| EXPECT_STREQ("input", |
| GetAttr(button, ax::mojom::StringAttribute::kHtmlTag).c_str()); |
| EXPECT_STREQ("push", |
| GetAttr(button, ax::mojom::StringAttribute::kName).c_str()); |
| EXPECT_STREQ("inline-block", |
| GetAttr(button, ax::mojom::StringAttribute::kDisplay).c_str()); |
| ASSERT_EQ(2U, button->data().html_attributes.size()); |
| EXPECT_STREQ("type", button->data().html_attributes[0].first.c_str()); |
| EXPECT_STREQ("button", button->data().html_attributes[0].second.c_str()); |
| EXPECT_STREQ("value", button->data().html_attributes[1].first.c_str()); |
| EXPECT_STREQ("push", button->data().html_attributes[1].second.c_str()); |
| |
| const ui::AXNode* checkbox = body->ChildAtIndex(1); |
| EXPECT_EQ(ax::mojom::Role::kCheckBox, checkbox->data().role); |
| EXPECT_STREQ("input", |
| GetAttr(checkbox, ax::mojom::StringAttribute::kHtmlTag).c_str()); |
| EXPECT_STREQ("inline-block", |
| GetAttr(checkbox, ax::mojom::StringAttribute::kDisplay).c_str()); |
| ASSERT_EQ(1U, checkbox->data().html_attributes.size()); |
| EXPECT_STREQ("type", checkbox->data().html_attributes[0].first.c_str()); |
| EXPECT_STREQ("checkbox", checkbox->data().html_attributes[0].second.c_str()); |
| } |
| |
| IN_PROC_BROWSER_TEST_F(CrossPlatformAccessibilityBrowserTest, |
| UnselectedEditableTextAccessibility) { |
| // Create a data url and load it. |
| const char url_str[] = |
| "data:text/html," |
| "<!doctype html>" |
| "<body>" |
| "<input value=\"Hello, world.\"/>" |
| "</body></html>"; |
| GURL url(url_str); |
| NavigateToURL(shell(), url); |
| |
| const ui::AXTree& tree = GetAXTree(); |
| const ui::AXNode* root = tree.root(); |
| ASSERT_EQ(1, root->child_count()); |
| const ui::AXNode* body = root->ChildAtIndex(0); |
| ASSERT_EQ(1, body->child_count()); |
| const ui::AXNode* text = body->ChildAtIndex(0); |
| EXPECT_EQ(ax::mojom::Role::kTextField, text->data().role); |
| EXPECT_STREQ("input", |
| GetAttr(text, ax::mojom::StringAttribute::kHtmlTag).c_str()); |
| EXPECT_EQ(0, GetIntAttr(text, ax::mojom::IntAttribute::kTextSelStart)); |
| EXPECT_EQ(0, GetIntAttr(text, ax::mojom::IntAttribute::kTextSelEnd)); |
| EXPECT_STREQ("Hello, world.", |
| GetAttr(text, ax::mojom::StringAttribute::kValue).c_str()); |
| |
| // TODO(dmazzoni): as soon as more accessibility code is cross-platform, |
| // this code should test that the accessible info is dynamically updated |
| // if the selection or value changes. |
| } |
| |
| IN_PROC_BROWSER_TEST_F(CrossPlatformAccessibilityBrowserTest, |
| SelectedEditableTextAccessibility) { |
| // Create a data url and load it. |
| const char url_str[] = |
| "data:text/html," |
| "<!doctype html>" |
| "<body onload=\"document.body.children[0].select();\">" |
| "<input value=\"Hello, world.\"/>" |
| "</body></html>"; |
| GURL url(url_str); |
| NavigateToURL(shell(), url); |
| |
| const ui::AXTree& tree = GetAXTree(); |
| const ui::AXNode* root = tree.root(); |
| ASSERT_EQ(1, root->child_count()); |
| const ui::AXNode* body = root->ChildAtIndex(0); |
| ASSERT_EQ(1, body->child_count()); |
| const ui::AXNode* text = body->ChildAtIndex(0); |
| EXPECT_EQ(ax::mojom::Role::kTextField, text->data().role); |
| EXPECT_STREQ("input", |
| GetAttr(text, ax::mojom::StringAttribute::kHtmlTag).c_str()); |
| EXPECT_EQ(0, GetIntAttr(text, ax::mojom::IntAttribute::kTextSelStart)); |
| EXPECT_EQ(13, GetIntAttr(text, ax::mojom::IntAttribute::kTextSelEnd)); |
| EXPECT_STREQ("Hello, world.", |
| GetAttr(text, ax::mojom::StringAttribute::kValue).c_str()); |
| } |
| |
| IN_PROC_BROWSER_TEST_F(CrossPlatformAccessibilityBrowserTest, |
| MultipleInheritanceAccessibility2) { |
| // Here's a html snippet where Blink puts the same node as a child |
| // of two different parents. Instead of checking the exact output, just |
| // make sure that no id is reused in the resulting tree. |
| const char url_str[] = |
| "data:text/html," |
| "<!doctype html>" |
| "<script>\n" |
| " document.writeln('<q><section></section></q><q><li>');\n" |
| " setTimeout(function() {\n" |
| " document.close();\n" |
| " }, 1);\n" |
| "</script>"; |
| GURL url(url_str); |
| NavigateToURL(shell(), url); |
| |
| const ui::AXTree& tree = GetAXTree(); |
| const ui::AXNode* root = tree.root(); |
| std::unordered_set<int> ids; |
| RecursiveAssertUniqueIds(root, &ids); |
| } |
| |
| // TODO(dmazzoni): Needs to be rebaselined. http://crbug.com/347464 |
| IN_PROC_BROWSER_TEST_F(CrossPlatformAccessibilityBrowserTest, |
| DISABLED_IframeAccessibility) { |
| // Create a data url and load it. |
| const char url_str[] = |
| "data:text/html," |
| "<!doctype html><html><body>" |
| "<button>Button 1</button>" |
| "<iframe src='data:text/html," |
| "<!doctype html><html><body><button>Button 2</button></body></html>" |
| "'></iframe>" |
| "<button>Button 3</button>" |
| "</body></html>"; |
| GURL url(url_str); |
| NavigateToURL(shell(), url); |
| |
| const ui::AXTree& tree = GetAXTree(); |
| const ui::AXNode* root = tree.root(); |
| ASSERT_EQ(1, root->child_count()); |
| const ui::AXNode* body = root->ChildAtIndex(0); |
| ASSERT_EQ(3, body->child_count()); |
| |
| const ui::AXNode* button1 = body->ChildAtIndex(0); |
| EXPECT_EQ(ax::mojom::Role::kButton, button1->data().role); |
| EXPECT_STREQ("Button 1", |
| GetAttr(button1, ax::mojom::StringAttribute::kName).c_str()); |
| |
| const ui::AXNode* iframe = body->ChildAtIndex(1); |
| EXPECT_STREQ("iframe", |
| GetAttr(iframe, ax::mojom::StringAttribute::kHtmlTag).c_str()); |
| ASSERT_EQ(1, iframe->child_count()); |
| |
| const ui::AXNode* sub_document = iframe->ChildAtIndex(0); |
| EXPECT_EQ(ax::mojom::Role::kWebArea, sub_document->data().role); |
| ASSERT_EQ(1, sub_document->child_count()); |
| |
| const ui::AXNode* sub_body = sub_document->ChildAtIndex(0); |
| ASSERT_EQ(1, sub_body->child_count()); |
| |
| const ui::AXNode* button2 = sub_body->ChildAtIndex(0); |
| EXPECT_EQ(ax::mojom::Role::kButton, button2->data().role); |
| EXPECT_STREQ("Button 2", |
| GetAttr(button2, ax::mojom::StringAttribute::kName).c_str()); |
| |
| const ui::AXNode* button3 = body->ChildAtIndex(2); |
| EXPECT_EQ(ax::mojom::Role::kButton, button3->data().role); |
| EXPECT_STREQ("Button 3", |
| GetAttr(button3, ax::mojom::StringAttribute::kName).c_str()); |
| } |
| |
| IN_PROC_BROWSER_TEST_F(CrossPlatformAccessibilityBrowserTest, |
| DuplicateChildrenAccessibility) { |
| // Here's another html snippet where WebKit has a parent node containing |
| // two duplicate child nodes. Instead of checking the exact output, just |
| // make sure that no id is reused in the resulting tree. |
| const char url_str[] = |
| "data:text/html," |
| "<!doctype html>" |
| "<em><code ><h4 ></em>"; |
| GURL url(url_str); |
| NavigateToURL(shell(), url); |
| |
| const ui::AXTree& tree = GetAXTree(); |
| const ui::AXNode* root = tree.root(); |
| std::unordered_set<int> ids; |
| RecursiveAssertUniqueIds(root, &ids); |
| } |
| |
| IN_PROC_BROWSER_TEST_F(CrossPlatformAccessibilityBrowserTest, |
| MAYBE_TableSpan) { |
| // +---+---+---+ |
| // | 1 | 2 | |
| // +---+---+---+ |
| // | 3 | 4 | |
| // +---+---+---+ |
| |
| const char url_str[] = |
| "data:text/html," |
| "<!doctype html>" |
| "<table border=1>" |
| " <tr>" |
| " <td colspan=2>1</td><td>2</td>" |
| " </tr>" |
| " <tr>" |
| " <td>3</td><td colspan=2>4</td>" |
| " </tr>" |
| "</table>"; |
| GURL url(url_str); |
| NavigateToURL(shell(), url); |
| |
| const ui::AXTree& tree = GetAXTree(); |
| const ui::AXNode* root = tree.root(); |
| const ui::AXNode* table = root->ChildAtIndex(0); |
| EXPECT_EQ(ax::mojom::Role::kTable, table->data().role); |
| ASSERT_GE(table->child_count(), 2); |
| EXPECT_EQ(ax::mojom::Role::kRow, table->ChildAtIndex(0)->data().role); |
| EXPECT_EQ(ax::mojom::Role::kRow, table->ChildAtIndex(1)->data().role); |
| EXPECT_EQ(3, GetIntAttr(table, ax::mojom::IntAttribute::kTableColumnCount)); |
| EXPECT_EQ(2, GetIntAttr(table, ax::mojom::IntAttribute::kTableRowCount)); |
| |
| const ui::AXNode* cell1 = table->ChildAtIndex(0)->ChildAtIndex(0); |
| const ui::AXNode* cell2 = table->ChildAtIndex(0)->ChildAtIndex(1); |
| const ui::AXNode* cell3 = table->ChildAtIndex(1)->ChildAtIndex(0); |
| const ui::AXNode* cell4 = table->ChildAtIndex(1)->ChildAtIndex(1); |
| |
| EXPECT_EQ(0, |
| GetIntAttr(cell1, ax::mojom::IntAttribute::kTableCellColumnIndex)); |
| EXPECT_EQ(0, GetIntAttr(cell1, ax::mojom::IntAttribute::kTableCellRowIndex)); |
| EXPECT_EQ(2, |
| GetIntAttr(cell1, ax::mojom::IntAttribute::kTableCellColumnSpan)); |
| EXPECT_EQ(1, GetIntAttr(cell1, ax::mojom::IntAttribute::kTableCellRowSpan)); |
| EXPECT_EQ(2, |
| GetIntAttr(cell2, ax::mojom::IntAttribute::kTableCellColumnIndex)); |
| EXPECT_EQ(1, |
| GetIntAttr(cell2, ax::mojom::IntAttribute::kTableCellColumnSpan)); |
| EXPECT_EQ(0, |
| GetIntAttr(cell3, ax::mojom::IntAttribute::kTableCellColumnIndex)); |
| EXPECT_EQ(1, |
| GetIntAttr(cell3, ax::mojom::IntAttribute::kTableCellColumnSpan)); |
| EXPECT_EQ(1, |
| GetIntAttr(cell4, ax::mojom::IntAttribute::kTableCellColumnIndex)); |
| EXPECT_EQ(2, |
| GetIntAttr(cell4, ax::mojom::IntAttribute::kTableCellColumnSpan)); |
| } |
| |
| IN_PROC_BROWSER_TEST_F(CrossPlatformAccessibilityBrowserTest, |
| WritableElement) { |
| const char url_str[] = |
| "data:text/html," |
| "<!doctype html>" |
| "<div role='textbox' tabindex=0>" |
| " Some text" |
| "</div>"; |
| GURL url(url_str); |
| NavigateToURL(shell(), url); |
| const ui::AXTree& tree = GetAXTree(); |
| const ui::AXNode* root = tree.root(); |
| ASSERT_EQ(1, root->child_count()); |
| const ui::AXNode* textbox = root->ChildAtIndex(0); |
| EXPECT_TRUE(textbox->data().HasAction(ax::mojom::Action::kSetValue)); |
| } |
| |
| } // namespace content |