// Copyright (c) 2011 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 "base/basictypes.h"
#include "chrome/test/base/chrome_render_view_test.h"
#include "components/autofill/content/renderer/page_click_listener.h"
#include "components/autofill/content/renderer/page_click_tracker.h"
#include "content/public/renderer/render_view.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/WebKit/public/platform/WebFloatPoint.h"
#include "third_party/WebKit/public/platform/WebSize.h"
#include "third_party/WebKit/public/web/WebDocument.h"
#include "third_party/WebKit/public/web/WebInputElement.h"
#include "third_party/WebKit/public/web/WebSettings.h"
#include "third_party/WebKit/public/web/WebTextAreaElement.h"
#include "third_party/WebKit/public/web/WebView.h"
#include "ui/events/keycodes/keyboard_codes.h"

namespace autofill {

class TestPageClickListener : public PageClickListener {
 public:
  TestPageClickListener()
      : form_control_element_clicked_called_(false),
        was_focused_(false) {}

  void FormControlElementClicked(const blink::WebFormControlElement& element,
                                 bool was_focused) override {
    form_control_element_clicked_called_ = true;
    form_control_element_clicked_ = element;
    was_focused_ = was_focused;
  }

  void ClearResults() {
    form_control_element_clicked_called_ = false;
    form_control_element_clicked_.reset();
    was_focused_ = false;
  }

  bool form_control_element_clicked_called_;
  blink::WebFormControlElement form_control_element_clicked_;
  bool was_focused_;
};

class PageClickTrackerTest : public ChromeRenderViewTest {
 protected:
  void SetUp() override {
    ChromeRenderViewTest::SetUp();

    // RenderView creates PageClickTracker but it doesn't keep it around.
    // Rather than make it do so for the test, we create a new object.
    page_click_tracker_.reset(new PageClickTracker(view_->GetMainRenderFrame(),
                                                   &test_listener_));

    // Must be set before loading HTML.
    view_->GetWebView()->setDefaultPageScaleLimits(1, 4);
    view_->GetWebView()->settings()->setPinchVirtualViewportEnabled(true);

    LoadHTML("<form>"
             "  <input type='text' id='text_1'></input><br>"
             "  <input type='text' id='text_2'></input><br>"
             "  <textarea  id='textarea_1'></textarea><br>"
             "  <textarea  id='textarea_2'></textarea><br>"
             "  <input type='button' id='button'></input><br>"
             "  <input type='button' id='button_2' disabled></input><br>"
             "</form>");
    GetWebWidget()->resize(blink::WebSize(500, 500));
    GetWebWidget()->setFocus(true);
    blink::WebDocument document = view_->GetWebView()->mainFrame()->document();
    text_ = document.getElementById("text_1");
    textarea_ = document.getElementById("textarea_1");
    ASSERT_FALSE(text_.isNull());
    ASSERT_FALSE(textarea_.isNull());

    // Enable show-ime event when element is focused by indicating that a user
    // gesture has been processed since load.
    EXPECT_TRUE(SimulateElementClick("button"));
  }

  void TearDown() override {
    text_.reset();
    textarea_.reset();
    test_listener_.ClearResults();
    page_click_tracker_.reset();
    ChromeRenderViewTest::TearDown();
  }

  scoped_ptr<PageClickTracker> page_click_tracker_;
  TestPageClickListener test_listener_;
  blink::WebElement text_;
  blink::WebElement textarea_;
};

// Tests that PageClickTracker does notify correctly when an input
// node is clicked.
TEST_F(PageClickTrackerTest, PageClickTrackerInputClicked) {
  EXPECT_NE(text_, text_.document().focusedElement());
  // Click the text field once.
  EXPECT_TRUE(SimulateElementClick("text_1"));
  EXPECT_TRUE(test_listener_.form_control_element_clicked_called_);
  EXPECT_FALSE(test_listener_.was_focused_);
  EXPECT_TRUE(text_ == test_listener_.form_control_element_clicked_);
  test_listener_.ClearResults();

  // Click the text field again to test that was_focused_ is set correctly.
  EXPECT_TRUE(SimulateElementClick("text_1"));
  EXPECT_TRUE(test_listener_.form_control_element_clicked_called_);
  EXPECT_TRUE(test_listener_.was_focused_);
  EXPECT_TRUE(text_ == test_listener_.form_control_element_clicked_);
  test_listener_.ClearResults();

  // Click the button, no notification should happen (this is not a text-input).
  EXPECT_TRUE(SimulateElementClick("button"));
  EXPECT_FALSE(test_listener_.form_control_element_clicked_called_);
}

TEST_F(PageClickTrackerTest, PageClickTrackerInputFocusedAndClicked) {
  // Focus the text field without a click.
  ExecuteJavaScript("document.getElementById('text_1').focus();");
  EXPECT_FALSE(test_listener_.form_control_element_clicked_called_);
  test_listener_.ClearResults();

  // Click the focused text field to test that was_focused_ is set correctly.
  EXPECT_TRUE(SimulateElementClick("text_1"));
  EXPECT_TRUE(test_listener_.form_control_element_clicked_called_);
  EXPECT_TRUE(test_listener_.was_focused_);
  EXPECT_TRUE(text_ == test_listener_.form_control_element_clicked_);
}

// Tests that PageClickTracker does notify correctly when a textarea
// node is clicked.
TEST_F(PageClickTrackerTest, PageClickTrackerTextAreaClicked) {
  // Click the textarea field once.
  EXPECT_TRUE(SimulateElementClick("textarea_1"));
  EXPECT_TRUE(test_listener_.form_control_element_clicked_called_);
  EXPECT_FALSE(test_listener_.was_focused_);
  EXPECT_TRUE(textarea_ == test_listener_.form_control_element_clicked_);
  test_listener_.ClearResults();

  // Click the textarea field again to test that was_focused_ is set correctly.
  EXPECT_TRUE(SimulateElementClick("textarea_1"));
  EXPECT_TRUE(test_listener_.form_control_element_clicked_called_);
  EXPECT_TRUE(test_listener_.was_focused_);
  EXPECT_TRUE(textarea_ == test_listener_.form_control_element_clicked_);
  test_listener_.ClearResults();

  // Click the button, no notification should happen (this is not a text-input).
  EXPECT_TRUE(SimulateElementClick("button"));
  EXPECT_FALSE(test_listener_.form_control_element_clicked_called_);
}

TEST_F(PageClickTrackerTest, PageClickTrackerTextAreaFocusedAndClicked) {
  // Focus the textarea without a click.
  ExecuteJavaScript("document.getElementById('textarea_1').focus();");
  EXPECT_FALSE(test_listener_.form_control_element_clicked_called_);
  test_listener_.ClearResults();

  // Click the focused text field to test that was_focused_ is set correctly.
  EXPECT_TRUE(SimulateElementClick("textarea_1"));
  EXPECT_TRUE(test_listener_.form_control_element_clicked_called_);
  EXPECT_TRUE(test_listener_.was_focused_);
  EXPECT_TRUE(textarea_ == test_listener_.form_control_element_clicked_);
  test_listener_.ClearResults();
}

TEST_F(PageClickTrackerTest, PageClickTrackerScaledTextareaClicked) {
  EXPECT_NE(textarea_, textarea_.document().focusedElement());
  view_->GetWebView()->setPageScaleFactor(3);
  view_->GetWebView()->setPinchViewportOffset(blink::WebFloatPoint(50, 50));

  // Click textarea_1.
  SimulatePointClick(gfx::Point(30, 30));
  EXPECT_TRUE(test_listener_.form_control_element_clicked_called_);
  EXPECT_FALSE(test_listener_.was_focused_);
  EXPECT_TRUE(textarea_ == test_listener_.form_control_element_clicked_);
}

TEST_F(PageClickTrackerTest, PageClickTrackerScaledTextareaTapped) {
  EXPECT_NE(textarea_, textarea_.document().focusedElement());
  view_->GetWebView()->setPageScaleFactor(3);
  view_->GetWebView()->setPinchViewportOffset(blink::WebFloatPoint(50, 50));

  // Tap textarea_1.
  SimulateRectTap(gfx::Rect(30, 30, 30, 30));
  EXPECT_TRUE(test_listener_.form_control_element_clicked_called_);
  EXPECT_FALSE(test_listener_.was_focused_);
  EXPECT_TRUE(textarea_ == test_listener_.form_control_element_clicked_);
}

TEST_F(PageClickTrackerTest, PageClickTrackerDisabledInputClickedNoEvent) {
  EXPECT_NE(text_, text_.document().focusedElement());
  // Click the text field once.
  EXPECT_TRUE(SimulateElementClick("text_1"));
  EXPECT_TRUE(test_listener_.form_control_element_clicked_called_);
  EXPECT_FALSE(test_listener_.was_focused_);
  EXPECT_TRUE(text_ == test_listener_.form_control_element_clicked_);
  test_listener_.ClearResults();

  // Click the disabled element.
  EXPECT_TRUE(SimulateElementClick("button_2"));
  EXPECT_FALSE(test_listener_.form_control_element_clicked_called_);
}

TEST_F(PageClickTrackerTest,
       PageClickTrackerClickDisabledInputDoesNotResetClickCounter) {
  EXPECT_NE(text_, text_.document().focusedElement());
  // Click the text field once.
  EXPECT_TRUE(SimulateElementClick("text_1"));
  EXPECT_TRUE(test_listener_.form_control_element_clicked_called_);
  EXPECT_FALSE(test_listener_.was_focused_);
  EXPECT_TRUE(text_ == test_listener_.form_control_element_clicked_);
  test_listener_.ClearResults();

  // Click the disabled element.
  EXPECT_TRUE(SimulateElementClick("button_2"));
  EXPECT_FALSE(test_listener_.form_control_element_clicked_called_);
  test_listener_.ClearResults();

  // Click the text field second time. Page click tracker should know that this
  // is the second click.
  EXPECT_TRUE(SimulateElementClick("text_1"));
  EXPECT_TRUE(test_listener_.form_control_element_clicked_called_);
  EXPECT_TRUE(test_listener_.was_focused_);
  EXPECT_TRUE(text_ == test_listener_.form_control_element_clicked_);
}

TEST_F(PageClickTrackerTest, PageClickTrackerTapNearEdgeIsPageClick) {
  EXPECT_NE(text_, text_.document().focusedElement());
  // Tap outside of element bounds, but tap width is overlapping the field.
  gfx::Rect element_bounds = GetElementBounds("text_1");
  SimulateRectTap(element_bounds -
                  gfx::Vector2d(element_bounds.width() / 2 + 1, 0));
  EXPECT_TRUE(test_listener_.form_control_element_clicked_called_);
  EXPECT_FALSE(test_listener_.was_focused_);
  EXPECT_TRUE(text_ == test_listener_.form_control_element_clicked_);
}

}  // namespace autofill