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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/test/base/ash/mojo_web_ui_browser_test.h"
#include <utility>
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/memory/raw_ptr.h"
#include "base/strings/utf_string_conversions.h"
#include "base/test/bind.h"
#include "chrome/browser/chrome_content_browser_client.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/common/chrome_paths.h"
#include "chrome/test/base/ash/web_ui_test_handler.h"
#include "chrome/test/data/grit/webui_test_resources.h"
#include "chrome/test/data/webui/chromeos/web_ui_test.mojom.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_ui_browser_interface_broker_registry.h"
#include "content/public/common/content_client.h"
#include "content/public/common/isolated_world_ids.h"
#include "mojo/public/cpp/bindings/binder_map.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "ui/base/resource/resource_bundle.h"
namespace {
// Handles Mojo-style test communication.
class WebUITestPageHandler : public web_ui_test::mojom::TestRunner,
public WebUITestHandler {
public:
explicit WebUITestPageHandler(content::WebUI* web_ui) : web_ui_(web_ui) {}
WebUITestPageHandler(const WebUITestPageHandler&) = delete;
WebUITestPageHandler& operator=(const WebUITestPageHandler&) = delete;
~WebUITestPageHandler() override = default;
// Binds the Mojo test interface to this handler.
void BindToTestRunnerReceiver(
mojo::PendingReceiver<web_ui_test::mojom::TestRunner> receiver) {
receiver_.Bind(std::move(receiver));
}
// web_ui_test::mojom::TestRunner:
void TestComplete(const std::optional<std::string>& message) override {
WebUITestHandler::TestComplete(message);
}
content::WebUI* GetWebUI() override { return web_ui_; }
private:
raw_ptr<content::WebUI, AcrossTasksDanglingUntriaged> web_ui_;
mojo::Receiver<web_ui_test::mojom::TestRunner> receiver_{this};
};
} // namespace
class MojoWebUIBrowserTest::WebUITestContentBrowserClient
: public ChromeContentBrowserClient {
public:
WebUITestContentBrowserClient() = default;
WebUITestContentBrowserClient(const WebUITestContentBrowserClient&) = delete;
WebUITestContentBrowserClient& operator=(
const WebUITestContentBrowserClient&) = delete;
~WebUITestContentBrowserClient() override = default;
void RegisterBrowserInterfaceBindersForFrame(
content::RenderFrameHost* render_frame_host,
mojo::BinderMapWithContext<content::RenderFrameHost*>* map) override {
ChromeContentBrowserClient::RegisterBrowserInterfaceBindersForFrame(
render_frame_host, map);
map->Add<web_ui_test::mojom::TestRunner>(
base::BindRepeating(&WebUITestContentBrowserClient::BindWebUITestRunner,
base::Unretained(this)));
}
void RegisterWebUIInterfaceBrokers(
content::WebUIBrowserInterfaceBrokerRegistry& registry) override {
ChromeContentBrowserClient::RegisterWebUIInterfaceBrokers(registry);
registry.AddBinderForTesting(base::BindLambdaForTesting(
[&](content::WebUIController* controller,
mojo::PendingReceiver<web_ui_test::mojom::TestRunner> receiver) {
content::RenderFrameHost* rfh =
controller->web_ui()->GetWebContents()->GetPrimaryMainFrame();
this->BindWebUITestRunner(rfh, std::move(receiver));
}));
}
void set_test_page_handler(WebUITestPageHandler* test_page_handler) {
test_page_handler_ = test_page_handler;
}
void BindWebUITestRunner(
content::RenderFrameHost* const render_frame_host,
mojo::PendingReceiver<web_ui_test::mojom::TestRunner> receiver) {
// Right now, this is expected to be called only for main frames.
ASSERT_FALSE(render_frame_host->GetParent());
test_page_handler_->BindToTestRunnerReceiver(std::move(receiver));
}
private:
raw_ptr<WebUITestPageHandler> test_page_handler_;
};
MojoWebUIBrowserTest::MojoWebUIBrowserTest()
: test_content_browser_client_(
std::make_unique<WebUITestContentBrowserClient>()) {}
MojoWebUIBrowserTest::~MojoWebUIBrowserTest() = default;
void MojoWebUIBrowserTest::SetUpOnMainThread() {
BaseWebUIBrowserTest::SetUpOnMainThread();
content::SetBrowserClientForTesting(test_content_browser_client_.get());
}
void MojoWebUIBrowserTest::SetupHandlers() {
content::WebUI* web_ui_instance =
override_selected_web_ui()
? override_selected_web_ui()
: browser()->tab_strip_model()->GetActiveWebContents()->GetWebUI();
ASSERT_TRUE(web_ui_instance != nullptr);
auto test_handler = std::make_unique<WebUITestPageHandler>(web_ui_instance);
test_content_browser_client_->set_test_page_handler(test_handler.get());
set_test_handler(std::move(test_handler));
}
void MojoWebUIBrowserTest::BrowsePreload(const GURL& browse_to) {
BaseWebUIBrowserTest::BrowsePreload(browse_to);
if (use_mojo_modules_)
return;
content::WebContents* web_contents =
browser()->tab_strip_model()->GetActiveWebContents();
std::string test_mojo_lite_js =
ui::ResourceBundle::GetSharedInstance().LoadDataResourceString(
IDR_WEBUI_CHROMEOS_TEST_WEB_UI_TEST_MOJOM_LITE_JS);
web_contents->GetPrimaryMainFrame()->ExecuteJavaScriptForTests(
base::UTF8ToUTF16(test_mojo_lite_js), base::NullCallback(),
content::ISOLATED_WORLD_ID_GLOBAL);
}
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