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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/accessibility/accessibility_browsertest.h"
#include "base/check.h"
#include "base/functional/callback_helpers.h"
#include "base/strings/escape.h"
#include "content/browser/renderer_host/render_widget_host_view_aura.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/public/common/isolated_world_ids.h"
#include "content/public/test/accessibility_notification_waiter.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/shell/browser/shell.h"
#include "content/test/content_browser_test_utils_internal.h"
#include "ui/accessibility/ax_mode.h"
#include "ui/accessibility/platform/browser_accessibility.h"
namespace content {
constexpr char kInputContents[] =
"Moz/5.0 (ST 6.x; WWW33) "
"WebKit \"KHTML, like\".";
constexpr char kTextareaContents[] =
"Moz/5.0 (ST 6.x; WWW33)\n"
"WebKit \n\"KHTML, like\".";
gfx::NativeViewAccessible AccessibilityBrowserTest::GetRendererAccessible() {
content::WebContents* web_contents = shell()->web_contents();
return web_contents->GetRenderWidgetHostView()->GetNativeViewAccessible();
}
AccessibilityBrowserTest::AccessibilityBrowserTest() = default;
AccessibilityBrowserTest::~AccessibilityBrowserTest() = default;
void AccessibilityBrowserTest::SetInitialAccessibilityMode(
ui::AXMode accessibility_mode) {
CHECK(!accessibility_mode_.has_value())
<< "Initial mode may only be set once, and only before any loads.";
accessibility_mode_.emplace(accessibility_mode);
}
void AccessibilityBrowserTest::TearDownOnMainThread() {
accessibility_mode_.reset();
}
void AccessibilityBrowserTest::ExecuteScript(const std::u16string& script) {
shell()->web_contents()->GetPrimaryMainFrame()->ExecuteJavaScriptForTests(
script, base::NullCallback(), ISOLATED_WORLD_ID_GLOBAL);
}
void AccessibilityBrowserTest::LoadInitialAccessibilityTreeFromHtml(
const std::string& html) {
if (!accessibility_mode_) {
accessibility_mode_.emplace(ui::kAXModeDefaultForTests);
}
AccessibilityNotificationWaiter waiter(shell()->web_contents(),
ax::mojom::Event::kLoadComplete);
GURL html_data_url("data:text/html," +
base::EscapeQueryParamValue(html, false));
EXPECT_TRUE(NavigateToURL(shell(), html_data_url));
ASSERT_TRUE(waiter.WaitForNotification());
}
void AccessibilityBrowserTest::LoadInputField() {
LoadInitialAccessibilityTreeFromHtml(std::string(
R"HTML(<!DOCTYPE html>
<html>
<body>
<form>
<label for="textField">Browser name:</label>
<input type="text" id="textField" name="name" value=")HTML") +
base::EscapeForHTML(kInputContents) +
std::string(R"HTML(">
</form>
</body>
</html>)HTML"));
}
void AccessibilityBrowserTest::LoadScrollableInputField(std::string type) {
LoadInitialAccessibilityTreeFromHtml(
std::string(
R"HTML(<!DOCTYPE html>
<html>
<body>
<input type=")HTML") +
type + std::string(R"HTML(" style="width: 150px;" value=")HTML") +
base::EscapeForHTML(kInputContents) + std::string(R"HTML(">
</body>
</html>)HTML"));
}
void AccessibilityBrowserTest::LoadTextareaField() {
LoadInitialAccessibilityTreeFromHtml(std::string(R"HTML(<!DOCTYPE html>
<html>
<body>
<textarea rows="3" cols="60">)HTML") +
base::EscapeForHTML(kTextareaContents) +
std::string(R"HTML(</textarea>
</body>
</html>)HTML"));
}
void AccessibilityBrowserTest::LoadSampleParagraph() {
LoadInitialAccessibilityTreeFromHtml(
R"HTML(<!DOCTYPE html>
<html>
<body>
<p><b>Game theory</b> is "the study of
<a href="" title="Mathematical model">mathematical models</a>
of conflict and<br>cooperation between intelligent rational
decision-makers."
</p>
</body>
</html>)HTML");
}
// Loads a page with a content editable whose text overflows its height.
// Places the caret at the beginning of the editable's last line but doesn't
// scroll the editable.
void AccessibilityBrowserTest::LoadSampleParagraphInScrollableEditable() {
LoadInitialAccessibilityTreeFromHtml(
R"HTML(<p contenteditable="true"
style="height: 30px; overflow: scroll;">
hello<br><br><br>hello
</p>)HTML");
AccessibilityNotificationWaiter selection_waiter(
shell()->web_contents(),
ui::AXEventGenerator::Event::TEXT_SELECTION_CHANGED);
ExecuteScript(
u"let selection=document.getSelection();"
u"let range=document.createRange();"
u"let editable=document.querySelector('p[contenteditable=\"true\"]');"
u"editable.focus();"
u"range.setStart(editable.lastChild, 0);"
u"range.setEnd(editable.lastChild, 0);"
u"selection.removeAllRanges();"
u"selection.addRange(range);");
ASSERT_TRUE(selection_waiter.WaitForNotification());
}
// Loads a page with a paragraph of sample text which is below the
// bottom of the screen.
void AccessibilityBrowserTest::LoadSampleParagraphInScrollableDocument() {
LoadInitialAccessibilityTreeFromHtml(
R"HTML(<!DOCTYPE html>
<html>
<body>
<p style="margin-top:50vh; margin-bottom:200vh">
<b>Game theory</b> is "the study of
<a href="" title="Mathematical model">mathematical models</a>
of conflict and<br>cooperation between intelligent rational
decision-makers."
</p>
</body>
</html>)HTML");
}
// static
std::string AccessibilityBrowserTest::InputContentsString() {
return kInputContents;
}
// static
std::string AccessibilityBrowserTest::TextAreaContentsString() {
return kTextareaContents;
}
} // namespace content
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