// Copyright 2014 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 "public/web/WebHelperPlugin.h"

#include "platform/testing/UnitTestHelpers.h"
#include "public/web/WebFrameClient.h"
#include "public/web/WebLocalFrame.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "web/tests/FakeWebPlugin.h"
#include "web/tests/FrameTestHelpers.h"

namespace blink {

namespace {

class FakePlaceholderWebPlugin : public FakeWebPlugin {
 public:
  FakePlaceholderWebPlugin(WebFrame* frame, const WebPluginParams& params)
      : FakeWebPlugin(frame, params) {}
  ~FakePlaceholderWebPlugin() override {}

  bool isPlaceholder() override { return true; }
};

class WebHelperPluginFrameClient : public FrameTestHelpers::TestWebFrameClient {
 public:
  WebHelperPluginFrameClient() : m_createPlaceholder(false) {}
  ~WebHelperPluginFrameClient() override {}

  WebPlugin* createPlugin(WebLocalFrame* frame,
                          const WebPluginParams& params) override {
    return m_createPlaceholder ? new FakePlaceholderWebPlugin(frame, params)
                               : new FakeWebPlugin(frame, params);
  }

  void setCreatePlaceholder(bool createPlaceholder) {
    m_createPlaceholder = createPlaceholder;
  }

 private:
  bool m_createPlaceholder;
};

class WebHelperPluginTest : public ::testing::Test {
 protected:
  void SetUp() override {
    m_helper.initializeAndLoad("about:blank", false, &m_frameClient);
  }

  void destroyHelperPlugin() {
    m_plugin.reset();
    // WebHelperPlugin is destroyed by a task posted to the message loop.
    testing::runPendingTasks();
  }

  FrameTestHelpers::WebViewHelper m_helper;
  WebHelperPluginFrameClient m_frameClient;
  WebHelperPluginUniquePtr m_plugin;
};

TEST_F(WebHelperPluginTest, CreateAndDestroyAfterWebViewDestruction) {
  m_plugin.reset(WebHelperPlugin::create(
      "hello", m_helper.webView()->mainFrame()->toWebLocalFrame()));
  EXPECT_TRUE(m_plugin);
  EXPECT_TRUE(m_plugin->getPlugin());

  m_helper.reset();
  destroyHelperPlugin();
}

TEST_F(WebHelperPluginTest, CreateAndDestroyBeforeWebViewDestruction) {
  m_plugin.reset(WebHelperPlugin::create(
      "hello", m_helper.webView()->mainFrame()->toWebLocalFrame()));
  EXPECT_TRUE(m_plugin);
  EXPECT_TRUE(m_plugin->getPlugin());

  destroyHelperPlugin();
  m_helper.reset();
}

TEST_F(WebHelperPluginTest, CreateFailsWithPlaceholder) {
  m_frameClient.setCreatePlaceholder(true);

  m_plugin.reset(WebHelperPlugin::create(
      "hello", m_helper.webView()->mainFrame()->toWebLocalFrame()));
  EXPECT_EQ(0, m_plugin.get());
}

}  // namespace

}  // namespace blink