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// Copyright 2013 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 "content/test/accessibility_browser_test_utils.h"
#include "base/bind.h"
#include "base/logging.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "content/browser/renderer_host/render_view_host_impl.h"
#include "content/port/browser/render_widget_host_view_port.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/url_constants.h"
#include "content/public/test/test_utils.h"
#include "content/shell/browser/shell.h"
#include "ui/accessibility/ax_node.h"
namespace content {
AccessibilityNotificationWaiter::AccessibilityNotificationWaiter(
Shell* shell,
AccessibilityMode accessibility_mode,
ui::AXEvent event_type)
: shell_(shell),
event_to_wait_for_(event_type),
loop_runner_(new MessageLoopRunner()),
weak_factory_(this) {
WebContents* web_contents = shell_->web_contents();
view_host_ = static_cast<RenderViewHostImpl*>(
web_contents->GetRenderViewHost());
view_host_->SetAccessibilityCallbackForTesting(
base::Bind(&AccessibilityNotificationWaiter::OnAccessibilityEvent,
weak_factory_.GetWeakPtr()));
view_host_->SetAccessibilityMode(accessibility_mode);
}
AccessibilityNotificationWaiter::~AccessibilityNotificationWaiter() {
}
void AccessibilityNotificationWaiter::WaitForNotification() {
loop_runner_->Run();
}
const ui::AXTree& AccessibilityNotificationWaiter::GetAXTree() const {
return view_host_->ax_tree_for_testing();
}
void AccessibilityNotificationWaiter::OnAccessibilityEvent(
ui::AXEvent event_type) {
if (!IsAboutBlank() && event_to_wait_for_ == event_type)
loop_runner_->Quit();
}
bool AccessibilityNotificationWaiter::IsAboutBlank() {
// Skip any accessibility notifications related to "about:blank",
// to avoid a possible race condition between the test beginning
// listening for accessibility events and "about:blank" loading.
const ui::AXNodeData& root = GetAXTree().GetRoot()->data();
for (size_t i = 0; i < root.string_attributes.size(); ++i) {
if (root.string_attributes[i].first != ui::AX_ATTR_DOC_URL)
continue;
const std::string& doc_url = root.string_attributes[i].second;
return doc_url == kAboutBlankURL;
}
return false;
}
} // namespace content
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