File: mojo_web_ui_browser_test.cc

package info (click to toggle)
chromium 139.0.7258.127-1
  • links: PTS, VCS
  • area: main
  • in suites:
  • size: 6,122,068 kB
  • sloc: cpp: 35,100,771; ansic: 7,163,530; javascript: 4,103,002; python: 1,436,920; asm: 946,517; xml: 746,709; pascal: 187,653; perl: 88,691; sh: 88,436; objc: 79,953; sql: 51,488; cs: 44,583; fortran: 24,137; makefile: 22,147; tcl: 15,277; php: 13,980; yacc: 8,984; ruby: 7,485; awk: 3,720; lisp: 3,096; lex: 1,327; ada: 727; jsp: 228; sed: 36
file content (147 lines) | stat: -rw-r--r-- 5,659 bytes parent folder | download | duplicates (6)
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
// 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);
}