content/browser/webui/web_ui_mojo_browsertest.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/command_line.h"
   6 #include "base/file_util.h"
   7 #include "base/files/file_path.h"
   8 #include "base/path_service.h"
   9 #include "base/run_loop.h"
  10 #include "base/strings/string_util.h"
  11 #include "content/browser/webui/web_ui_controller_factory_registry.h"
  12 #include "content/common/mojo/mojo_channel_init.h"
  13 #include "content/public/browser/browser_context.h"
  14 #include "content/public/browser/render_view_host.h"
  15 #include "content/public/browser/web_contents.h"
  16 #include "content/public/browser/web_ui_controller.h"
  17 #include "content/public/browser/web_ui_data_source.h"
  18 #include "content/public/common/content_paths.h"
  19 #include "content/public/common/content_switches.h"
  20 #include "content/public/common/url_utils.h"
  21 #include "content/public/test/content_browser_test.h"
  22 #include "content/public/test/content_browser_test_utils.h"
  23 #include "content/test/data/web_ui_test_mojo_bindings.mojom.h"
  24 #include "grit/content_resources.h"
  25 #include "mojo/public/bindings/js/constants.h"
  26 #include "mojo/public/bindings/remote_ptr.h"
  27
  28 namespace content {
  29 namespace {
  30
  31 bool got_message = false;
  32
  33 // Returns the path to the mojom js bindings file.
  34 base::FilePath GetFilePathForJSResource(const std::string& path) {
  35   std::string binding_path = "gen/" + path + ".js";
  36 #if defined(OS_WIN)
  37   std::string tmp;
  38   base::ReplaceChars(binding_path, "//", "\\", &tmp);
  39   binding_path.swap(tmp);
  40 #endif
  41   base::FilePath file_path;
  42   PathService::Get(CHILD_PROCESS_EXE, &file_path);
  43   return file_path.DirName().AppendASCII(binding_path);
  44 }
  45
  46 // The bindings for the page are generated from a .mojom file. This code looks
  47 // up the generated file from disk and returns it.
  48 bool GetResource(const std::string& id,
  49                  const WebUIDataSource::GotDataCallback& callback) {
  50   // These are handled by the WebUIDataSource that AddMojoDataSource() creates.
  51   if (id == mojo::kCodecModuleName ||
  52       id == mojo::kConnectionModuleName ||
  53       id == mojo::kConnectorModuleName ||
  54       id == mojo::kRouterModuleName)
  55     return false;
  56
  57   std::string contents;
  58   CHECK(base::ReadFileToString(GetFilePathForJSResource(id), &contents,
  59                                std::string::npos));
  60   base::RefCountedString* ref_contents = new base::RefCountedString;
  61   ref_contents->data() = contents;
  62   callback.Run(ref_contents);
  63   return true;
  64 }
  65
  66 // BrowserTarget implementation that quits a RunLoop when BrowserTarget::Test()
  67 // is called.
  68 class BrowserTargetImpl : public mojo::BrowserTarget {
  69  public:
  70   BrowserTargetImpl(mojo::ScopedRendererTargetHandle handle,
  71                     base::RunLoop* run_loop)
  72       : client_(handle.Pass(), this),
  73         run_loop_(run_loop) {
  74     client_->Test();
  75   }
  76   virtual ~BrowserTargetImpl() {}
  77
  78   // mojo::BrowserTarget overrides:
  79   virtual void Test() OVERRIDE {
  80     got_message = true;
  81     run_loop_->Quit();
  82   }
  83
  84  private:
  85   mojo::RemotePtr<mojo::RendererTarget> client_;
  86
  87   base::RunLoop* run_loop_;
  88
  89   DISALLOW_COPY_AND_ASSIGN(BrowserTargetImpl);
  90 };
  91
  92 // WebUIController that sets up mojo bindings. Additionally it creates the
  93 // BrowserTarget implementation at the right time.
  94 class TestWebUIController : public WebUIController {
  95  public:
  96   explicit TestWebUIController(WebUI* web_ui, base::RunLoop* run_loop)
  97       : WebUIController(web_ui),
  98         run_loop_(run_loop) {
  99     content::WebUIDataSource* data_source =
 100         WebUIDataSource::AddMojoDataSource(
 101             web_ui->GetWebContents()->GetBrowserContext());
 102     data_source->SetRequestFilter(base::Bind(&GetResource));
 103   }
 104
 105   // WebUIController overrides:
 106   virtual void RenderViewCreated(RenderViewHost* render_view_host) OVERRIDE {
 107     mojo::InterfacePipe<mojo::BrowserTarget, mojo::RendererTarget> pipe;
 108     browser_target_.reset(
 109         new BrowserTargetImpl(pipe.handle_to_peer.Pass(), run_loop_));
 110     render_view_host->SetWebUIHandle(
 111         mojo::ScopedMessagePipeHandle(pipe.handle_to_self.release()));
 112   }
 113
 114  private:
 115   base::RunLoop* run_loop_;
 116
 117   scoped_ptr<BrowserTargetImpl> browser_target_;
 118
 119   DISALLOW_COPY_AND_ASSIGN(TestWebUIController);
 120 };
 121
 122 // WebUIControllerFactory that creates TestWebUIController.
 123 class TestWebUIControllerFactory : public WebUIControllerFactory {
 124  public:
 125   TestWebUIControllerFactory() : run_loop_(NULL) {}
 126
 127   void set_run_loop(base::RunLoop* run_loop) { run_loop_ = run_loop; }
 128
 129   virtual WebUIController* CreateWebUIControllerForURL(
 130       WebUI* web_ui, const GURL& url) const OVERRIDE {
 131     return new TestWebUIController(web_ui, run_loop_);
 132   }
 133   virtual WebUI::TypeID GetWebUIType(BrowserContext* browser_context,
 134       const GURL& url) const OVERRIDE {
 135     return reinterpret_cast<WebUI::TypeID>(1);
 136   }
 137   virtual bool UseWebUIForURL(BrowserContext* browser_context,
 138                               const GURL& url) const OVERRIDE {
 139     return true;
 140   }
 141   virtual bool UseWebUIBindingsForURL(BrowserContext* browser_context,
 142                                       const GURL& url) const OVERRIDE {
 143     return true;
 144   }
 145
 146  private:
 147   base::RunLoop* run_loop_;
 148
 149   DISALLOW_COPY_AND_ASSIGN(TestWebUIControllerFactory);
 150 };
 151
 152 class WebUIMojoTest : public ContentBrowserTest {
 153  public:
 154   WebUIMojoTest() {
 155     WebUIControllerFactory::RegisterFactory(&factory_);
 156   }
 157
 158   virtual ~WebUIMojoTest() {
 159     WebUIControllerFactory::UnregisterFactoryForTesting(&factory_);
 160   }
 161
 162   TestWebUIControllerFactory* factory() { return &factory_; }
 163
 164  private:
 165   TestWebUIControllerFactory factory_;
 166
 167   DISALLOW_COPY_AND_ASSIGN(WebUIMojoTest);
 168 };
 169
 170 // Loads a webui page that contains mojo bindings and verifies a message makes
 171 // it from the browser to the page and back.
 172 IN_PROC_BROWSER_TEST_F(WebUIMojoTest, EndToEnd) {
 173   // Currently there is no way to have a generated file included in the isolate
 174   // files. If the bindings file doesn't exist assume we're on such a bot and
 175   // pass.
 176   // TODO(sky): remove this conditional when isolates support copying from gen.
 177   const base::FilePath test_file_path(
 178       GetFilePathForJSResource(
 179           "content/test/data/web_ui_test_mojo_bindings.mojom"));
 180   if (!base::PathExists(test_file_path)) {
 181     LOG(WARNING) << " mojom binding file doesn't exist, assuming on isolate";
 182     return;
 183   }
 184
 185   got_message = false;
 186   ASSERT_TRUE(test_server()->Start());
 187   base::RunLoop run_loop;
 188   factory()->set_run_loop(&run_loop);
 189   GURL test_url(test_server()->GetURL("files/web_ui_mojo.html"));
 190   NavigateToURL(shell(), test_url);
 191   // RunLoop is quit when message received from page.
 192   run_loop.Run();
 193   EXPECT_TRUE(got_message);
 194 }
 195
 196 }  // namespace
 197 }  // namespace content