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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/command_line.h"
#include "base/strings/utf_string_conversions.h"
#include "build/build_config.h"
#include "content/browser/renderer_host/cross_process_frame_connector.h"
#include "content/browser/renderer_host/frame_tree.h"
#include "content/browser/renderer_host/render_frame_proxy_host.h"
#include "content/browser/renderer_host/render_view_host_impl.h"
#include "content/browser/renderer_host/render_widget_host_view_child_frame.h"
#include "content/browser/site_per_process_browsertest.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/public/browser/web_contents_observer.h"
#include "content/public/common/content_switches.h"
#include "content/public/test/accessibility_notification_waiter.h"
#include "content/public/test/browser_test.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/scoped_accessibility_mode_override.h"
#include "content/public/test/test_utils.h"
#include "content/shell/browser/shell.h"
#include "content/test/content_browser_test_utils_internal.h"
#include "content/test/render_document_feature.h"
#include "net/dns/mock_host_resolver.h"
#include "net/test/embedded_test_server/embedded_test_server.h"
#include "ui/accessibility/ax_mode.h"
#include "ui/accessibility/platform/browser_accessibility.h"
#include "ui/accessibility/platform/browser_accessibility_manager.h"
#include "url/gurl.h"
#include "url/url_constants.h"
// These tests time out on Android.
#if BUILDFLAG(IS_ANDROID)
#define MAYBE_SitePerProcessAccessibilityBrowserTest \
DISABLED_SitePerProcessAccessibilityBrowserTest
#else
#define MAYBE_SitePerProcessAccessibilityBrowserTest \
SitePerProcessAccessibilityBrowserTest
#endif
// "All/DISABLED_SitePerProcessAccessibilityBrowserTest" does not work. We need
// "DISABLED_All/...". TODO(crbug.com/40136187) delete when fixed.
#if BUILDFLAG(IS_ANDROID)
#define MAYBE_All DISABLED_All
#else
#define MAYBE_All All
#endif
namespace content {
class MAYBE_SitePerProcessAccessibilityBrowserTest
: public SitePerProcessBrowserTest {
public:
MAYBE_SitePerProcessAccessibilityBrowserTest() {}
void LoadCrossSitePageIntoFrame(FrameTreeNode* frame_tree_node,
const std::string& relative_url,
const std::string& host) {
// Load cross-site page into iframe.
RenderFrameHostImpl* child_rfh =
frame_tree_node->render_manager()->current_frame_host();
RenderFrameDeletedObserver deleted_observer(child_rfh);
GURL cross_site_url(embedded_test_server()->GetURL(host, relative_url));
EXPECT_TRUE(NavigateToURLFromRenderer(frame_tree_node, cross_site_url));
// Ensure that we have created a new process for the subframe.
SiteInstance* site_instance =
frame_tree_node->current_frame_host()->GetSiteInstance();
EXPECT_NE(shell()->web_contents()->GetSiteInstance(), site_instance);
// Wait until the iframe completes the swap.
deleted_observer.WaitUntilDeleted();
}
};
IN_PROC_BROWSER_TEST_P(MAYBE_SitePerProcessAccessibilityBrowserTest,
CrossSiteIframeAccessibility) {
// Enable full accessibility for all current and future WebContents.
ScopedAccessibilityModeOverride mode_override(ui::kAXModeComplete);
GURL main_url(embedded_test_server()->GetURL("/site_per_process_main.html"));
EXPECT_TRUE(NavigateToURL(shell(), main_url));
// It is safe to obtain the root frame tree node here, as it doesn't change.
FrameTreeNode* root = static_cast<WebContentsImpl*>(shell()->web_contents())
->GetPrimaryFrameTree()
.root();
// Load same-site page into iframe.
FrameTreeNode* child = root->child_at(0);
GURL http_url(embedded_test_server()->GetURL("/title1.html"));
EXPECT_TRUE(NavigateToURLFromRenderer(child, http_url));
// Load cross-site page into iframe and wait for text from that
// page to appear in the accessibility tree.
LoadCrossSitePageIntoFrame(child, "/title2.html", "foo.com");
WaitForAccessibilityTreeToContainNodeWithName(shell()->web_contents(),
"Title Of Awesomeness");
RenderFrameHostImpl* main_frame = static_cast<RenderFrameHostImpl*>(
shell()->web_contents()->GetPrimaryMainFrame());
ui::BrowserAccessibilityManager* main_frame_manager =
main_frame->browser_accessibility_manager();
VLOG(1) << "Main frame accessibility tree:\n"
<< main_frame_manager->SnapshotAXTreeForTesting().ToString();
// Assert that we can walk from the main frame down into the child frame
// directly, getting correct roles and data along the way.
ui::BrowserAccessibility* ax_root =
main_frame_manager->GetBrowserAccessibilityRoot();
EXPECT_EQ(ax::mojom::Role::kRootWebArea, ax_root->GetRole());
ASSERT_EQ(1U, ax_root->PlatformChildCount());
ui::BrowserAccessibility* ax_group = ax_root->PlatformGetChild(0);
EXPECT_EQ(ax::mojom::Role::kGenericContainer, ax_group->GetRole());
ASSERT_EQ(2U, ax_group->PlatformChildCount());
ui::BrowserAccessibility* ax_iframe = ax_group->PlatformGetChild(0);
EXPECT_EQ(ax::mojom::Role::kIframe, ax_iframe->GetRole());
ASSERT_EQ(1U, ax_iframe->PlatformChildCount());
ui::BrowserAccessibility* ax_child_frame_root =
ax_iframe->PlatformGetChild(0);
EXPECT_EQ(ax::mojom::Role::kRootWebArea, ax_child_frame_root->GetRole());
ASSERT_EQ(1U, ax_child_frame_root->PlatformChildCount());
EXPECT_EQ("Title Of Awesomeness", ax_child_frame_root->GetStringAttribute(
ax::mojom::StringAttribute::kName));
ui::BrowserAccessibility* ax_child_frame_group =
ax_child_frame_root->PlatformGetChild(0);
EXPECT_EQ(ax::mojom::Role::kGenericContainer,
ax_child_frame_group->GetRole());
ASSERT_EQ(1U, ax_child_frame_group->PlatformChildCount());
ui::BrowserAccessibility* ax_child_frame_static_text =
ax_child_frame_group->PlatformGetChild(0);
EXPECT_EQ(ax::mojom::Role::kStaticText,
ax_child_frame_static_text->GetRole());
ASSERT_EQ(0U, ax_child_frame_static_text->PlatformChildCount());
// Last, check that the parent of the child frame root is correct.
EXPECT_EQ(ax_child_frame_root->PlatformGetParent(), ax_iframe);
}
// TODO(aboxhall): Flaky test, discuss with dmazzoni
IN_PROC_BROWSER_TEST_P(MAYBE_SitePerProcessAccessibilityBrowserTest,
DISABLED_TwoCrossSiteNavigations) {
// Enable full accessibility for all current and future WebContents.
ScopedAccessibilityModeOverride mode_override(ui::kAXModeComplete);
GURL main_url(embedded_test_server()->GetURL("/site_per_process_main.html"));
EXPECT_TRUE(NavigateToURL(shell(), main_url));
// It is safe to obtain the root frame tree node here, as it doesn't change.
FrameTreeNode* root = static_cast<WebContentsImpl*>(shell()->web_contents())
->GetPrimaryFrameTree()
.root();
// Load first cross-site page into iframe and wait for text from that
// page to appear in the accessibility tree.
FrameTreeNode* child = root->child_at(0);
LoadCrossSitePageIntoFrame(child, "/title1.html", "foo.com");
WaitForAccessibilityTreeToContainNodeWithName(shell()->web_contents(),
"This page has no title.");
// Load second cross-site page into iframe and wait for text from that
// page to appear in the accessibility tree. If this succeeds and doesn't
// time out, the test passes.
LoadCrossSitePageIntoFrame(child, "/title2.html", "bar.com");
WaitForAccessibilityTreeToContainNodeWithName(shell()->web_contents(),
"Title Of Awesomeness");
}
// Ensure that enabling accessibility and doing a remote-to-local main frame
// navigation doesn't crash. See https://crbug.com/762824.
IN_PROC_BROWSER_TEST_P(MAYBE_SitePerProcessAccessibilityBrowserTest,
RemoteToLocalMainFrameNavigation) {
// Enable full accessibility for all current and future WebContents.
ScopedAccessibilityModeOverride mode_override(ui::kAXModeComplete);
GURL main_url(embedded_test_server()->GetURL("a.com", "/title1.html"));
EXPECT_TRUE(NavigateToURL(shell(), main_url));
WaitForAccessibilityTreeToContainNodeWithName(shell()->web_contents(),
"This page has no title.");
// Open a new tab for b.com and wait for it to load. This will create a
// proxy in b.com for the original (opener) tab.
GURL b_url(embedded_test_server()->GetURL("b.com", "/title2.html"));
Shell* new_shell = OpenPopup(shell()->web_contents(), b_url, "popup");
WaitForAccessibilityTreeToContainNodeWithName(new_shell->web_contents(),
"Title Of Awesomeness");
// Navigate the original tab to b.com as well. This performs a
// remote-to-local main frame navigation in b.com and shouldn't crash.
EXPECT_TRUE(NavigateToURL(shell(), b_url));
WaitForAccessibilityTreeToContainNodeWithName(shell()->web_contents(),
"Title Of Awesomeness");
}
INSTANTIATE_TEST_SUITE_P(
MAYBE_All,
MAYBE_SitePerProcessAccessibilityBrowserTest,
::testing::ValuesIn(RenderDocumentFeatureLevelValues()));
class MAYBE_SitePerProcessAccessibilityDeviceScaleFactorBrowserTest
: public MAYBE_SitePerProcessAccessibilityBrowserTest {
public:
MAYBE_SitePerProcessAccessibilityDeviceScaleFactorBrowserTest() = default;
void SetUp() override {
EnablePixelOutput(device_scale_factor_);
MAYBE_SitePerProcessAccessibilityBrowserTest::SetUp();
}
protected:
static constexpr float device_scale_factor_ = 2.f;
};
IN_PROC_BROWSER_TEST_P(
MAYBE_SitePerProcessAccessibilityDeviceScaleFactorBrowserTest,
CrossSiteIframeCoordinates) {
// Enable full accessibility for all current and future WebContents.
ScopedAccessibilityModeOverride mode_override(ui::kAXModeComplete);
GURL main_url(embedded_test_server()->GetURL("/site_per_process_main.html"));
EXPECT_TRUE(NavigateToURL(shell(), main_url));
// It is safe to obtain the root frame tree node here, as it doesn't change.
FrameTreeNode* root = static_cast<WebContentsImpl*>(shell()->web_contents())
->GetPrimaryFrameTree()
.root();
// Load cross-site page into iframe and wait for text from that
// page to appear in the accessibility tree.
FrameTreeNode* child = root->child_at(0);
LoadCrossSitePageIntoFrame(child, "/title2.html", "foo.com");
WaitForAccessibilityTreeToContainNodeWithName(shell()->web_contents(),
"Title Of Awesomeness");
child = root->child_at(0);
RenderFrameHostImpl* main_frame = static_cast<RenderFrameHostImpl*>(
shell()->web_contents()->GetPrimaryMainFrame());
ui::BrowserAccessibilityManager* main_frame_manager =
main_frame->browser_accessibility_manager();
VLOG(1) << "Main frame accessibility tree:\n"
<< main_frame_manager->SnapshotAXTreeForTesting().ToString();
// Assert that we can walk from the main frame down into the child frame
// directly, getting correct roles and data along the way.
ui::BrowserAccessibility* ax_root =
main_frame_manager->GetBrowserAccessibilityRoot();
EXPECT_EQ(ax::mojom::Role::kRootWebArea, ax_root->GetRole());
ASSERT_EQ(1U, ax_root->PlatformChildCount());
ui::BrowserAccessibility* ax_group = ax_root->PlatformGetChild(0);
EXPECT_EQ(ax::mojom::Role::kGenericContainer, ax_group->GetRole());
ASSERT_EQ(2U, ax_group->PlatformChildCount());
ui::BrowserAccessibility* ax_iframe = ax_group->PlatformGetChild(0);
EXPECT_EQ(ax::mojom::Role::kIframe, ax_iframe->GetRole());
ASSERT_EQ(1U, ax_iframe->PlatformChildCount());
ui::BrowserAccessibility* ax_child_frame_root =
ax_iframe->PlatformGetChild(0);
EXPECT_EQ(ax::mojom::Role::kRootWebArea, ax_child_frame_root->GetRole());
ASSERT_EQ(1U, ax_child_frame_root->PlatformChildCount());
// Get the relative iframe rect in blink pixels.
gfx::Rect iframe_rect_root_relative_blink_pixels = ax_iframe->GetBoundsRect(
ui::AXCoordinateSystem::kRootFrame, ui::AXClippingBehavior::kUnclipped);
gfx::Rect iframe_rect_root_relative_physical_pixels;
iframe_rect_root_relative_physical_pixels =
iframe_rect_root_relative_blink_pixels;
// Get the view bounds in screen coordinate DIPs, then ensure the offsetting
// done by ui::AXCoordinateSystem::kScreenPhysicalPixels produces the correct
// rect.
gfx::Rect view_bounds = main_frame->GetView()->GetViewBounds();
gfx::Rect iframe_rect_physical_screen_pixels =
iframe_rect_root_relative_physical_pixels +
gfx::ScaleToFlooredPoint(view_bounds.origin(), device_scale_factor_)
.OffsetFromOrigin();
EXPECT_EQ(iframe_rect_physical_screen_pixels.origin(),
ax_child_frame_root
->GetBoundsRect(ui::AXCoordinateSystem::kScreenPhysicalPixels,
ui::AXClippingBehavior::kUnclipped)
.origin());
}
INSTANTIATE_TEST_SUITE_P(
MAYBE_All,
MAYBE_SitePerProcessAccessibilityDeviceScaleFactorBrowserTest,
::testing::ValuesIn(RenderDocumentFeatureLevelValues()));
} // namespace content
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