1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
content / browser / accessibility / site_per_process_accessibility_browsertest.cc [blame]
// 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