<!DOCTYPE html>
<!--
@license
Copyright (C) 2017 The Android Open Source Project

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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limitations under the License.
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<meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
<meta charset="utf-8">
<title>gr-textarea</title>

<script src="/node_modules/@webcomponents/webcomponentsjs/custom-elements-es5-adapter.js"></script>

<script src="/node_modules/@webcomponents/webcomponentsjs/webcomponents-lite.js"></script>
<script src="/components/wct-browser-legacy/browser.js"></script>

<test-fixture id="basic">
  <template>
    <gr-textarea></gr-textarea>
  </template>
</test-fixture>

<test-fixture id="monospace">
  <template>
    <gr-textarea monospace="true"></gr-textarea>
  </template>
</test-fixture>

<test-fixture id="hideBorder">
  <template>
    <gr-textarea hide-border="true"></gr-textarea>
  </template>
</test-fixture>

<script type="module">
import '../../../test/common-test-setup.js';
import './gr-textarea.js';
suite('gr-textarea tests', () => {
  let element;
  let sandbox;

  setup(() => {
    sandbox = sinon.sandbox.create();
    element = fixture('basic');
    sandbox.stub(element.reporting, 'reportInteraction');
  });

  teardown(() => {
    sandbox.restore();
  });

  test('monospace is set properly', () => {
    assert.isFalse(element.classList.contains('monospace'));
  });

  test('hideBorder is set properly', () => {
    assert.isFalse(element.$.textarea.classList.contains('noBorder'));
  });

  test('emoji selector is not open with the textarea lacks focus', () => {
    element.$.textarea.selectionStart = 1;
    element.$.textarea.selectionEnd = 1;
    element.text = ':';
    assert.isFalse(!element.$.emojiSuggestions.isHidden);
  });

  test('emoji selector is not open when a general text is entered', () => {
    MockInteractions.focus(element.$.textarea);
    element.$.textarea.selectionStart = 9;
    element.$.textarea.selectionEnd = 9;
    element.text = 'some text';
    assert.isFalse(!element.$.emojiSuggestions.isHidden);
  });

  test('emoji selector opens when a colon is typed & the textarea has focus',
      () => {
        MockInteractions.focus(element.$.textarea);
        // Needed for Safari tests. selectionStart is not updated when text is
        // updated.
        element.$.textarea.selectionStart = 1;
        element.$.textarea.selectionEnd = 1;
        element.text = ':';
        flushAsynchronousOperations();
        assert.isFalse(element.$.emojiSuggestions.isHidden);
        assert.equal(element._colonIndex, 0);
        assert.isFalse(element._hideAutocomplete);
        assert.equal(element._currentSearchString, '');
      });

  test('emoji selector opens when a colon is typed after space',
      () => {
        MockInteractions.focus(element.$.textarea);
        // Needed for Safari tests. selectionStart is not updated when text is
        // updated.
        element.$.textarea.selectionStart = 2;
        element.$.textarea.selectionEnd = 2;
        element.text = ' :';
        flushAsynchronousOperations();
        assert.isFalse(element.$.emojiSuggestions.isHidden);
        assert.equal(element._colonIndex, 1);
        assert.isFalse(element._hideAutocomplete);
        assert.equal(element._currentSearchString, '');
      });

  test('emoji selector doesn\`t open when a colon is typed after character',
      () => {
        MockInteractions.focus(element.$.textarea);
        // Needed for Safari tests. selectionStart is not updated when text is
        // updated.
        element.$.textarea.selectionStart = 5;
        element.$.textarea.selectionEnd = 5;
        element.text = 'test:';
        flushAsynchronousOperations();
        assert.isTrue(element.$.emojiSuggestions.isHidden);
        assert.isTrue(element._hideAutocomplete);
      });

  test('emoji selector opens when a colon is typed and some substring',
      () => {
        MockInteractions.focus(element.$.textarea);
        // Needed for Safari tests. selectionStart is not updated when text is
        // updated.
        element.$.textarea.selectionStart = 1;
        element.$.textarea.selectionEnd = 1;
        element.text = ':';
        element.$.textarea.selectionStart = 2;
        element.$.textarea.selectionEnd = 2;
        element.text = ':t';
        flushAsynchronousOperations();
        assert.isFalse(element.$.emojiSuggestions.isHidden);
        assert.equal(element._colonIndex, 0);
        assert.isFalse(element._hideAutocomplete);
        assert.equal(element._currentSearchString, 't');
      });

  test('emoji selector opens when a colon is typed in middle of text',
      () => {
        MockInteractions.focus(element.$.textarea);
        // Needed for Safari tests. selectionStart is not updated when text is
        // updated.
        element.$.textarea.selectionStart = 1;
        element.$.textarea.selectionEnd = 1;
        // Since selectionStart is on Chrome set always on end of text, we
        // stub it to 1
        const text = ': hello';
        sandbox.stub(element.$, 'textarea', {
          selectionStart: 1,
          value: text,
          textarea: {
            focus: () => {},
          },
        });
        element.text = text;
        flushAsynchronousOperations();
        assert.isFalse(element.$.emojiSuggestions.isHidden);
        assert.equal(element._colonIndex, 0);
        assert.isFalse(element._hideAutocomplete);
        assert.equal(element._currentSearchString, '');
      });
  test('emoji selector closes when text changes before the colon', () => {
    const resetStub = sandbox.stub(element, '_resetEmojiDropdown');
    MockInteractions.focus(element.$.textarea);
    flushAsynchronousOperations();
    element.$.textarea.selectionStart = 10;
    element.$.textarea.selectionEnd = 10;
    element.text = 'test test ';
    element.$.textarea.selectionStart = 12;
    element.$.textarea.selectionEnd = 12;
    element.text = 'test test :';
    element.$.textarea.selectionStart = 15;
    element.$.textarea.selectionEnd = 15;
    element.text = 'test test :smi';

    assert.equal(element._currentSearchString, 'smi');
    assert.isFalse(resetStub.called);
    element.text = 'test test test :smi';
    assert.isTrue(resetStub.called);
  });

  test('_resetEmojiDropdown', () => {
    const closeSpy = sandbox.spy(element, 'closeDropdown');
    element._resetEmojiDropdown();
    assert.equal(element._currentSearchString, '');
    assert.isTrue(element._hideAutocomplete);
    assert.equal(element._colonIndex, null);

    element.$.emojiSuggestions.open();
    flushAsynchronousOperations();
    element._resetEmojiDropdown();
    assert.isTrue(closeSpy.called);
  });

  test('_determineSuggestions', () => {
    const emojiText = 'tear';
    const formatSpy = sandbox.spy(element, '_formatSuggestions');
    element._determineSuggestions(emojiText);
    assert.isTrue(formatSpy.called);
    assert.isTrue(formatSpy.lastCall.calledWithExactly(
        [{dataValue: '😂', value: '😂', match: 'tears :\')',
          text: '😂 tears :\')'},
        {dataValue: '😢', value: '😢', match: 'tear', text: '😢 tear'},
        ]));
  });

  test('_formatSuggestions', () => {
    const matchedSuggestions = [{value: '😢', match: 'tear'},
      {value: '😂', match: 'tears'}];
    element._formatSuggestions(matchedSuggestions);
    assert.deepEqual(
        [{value: '😢', dataValue: '😢', match: 'tear', text: '😢 tear'},
          {value: '😂', dataValue: '😂', match: 'tears', text: '😂 tears'}],
        element._suggestions);
  });

  test('_handleEmojiSelect', () => {
    element.$.textarea.selectionStart = 16;
    element.$.textarea.selectionEnd = 16;
    element.text = 'test test :tears';
    element._colonIndex = 10;
    const selectedItem = {dataset: {value: '😂'}};
    const event = {detail: {selected: selectedItem}};
    element._handleEmojiSelect(event);
    assert.equal(element.text, 'test test 😂');
  });

  test('_updateCaratPosition', () => {
    element.$.textarea.selectionStart = 4;
    element.$.textarea.selectionEnd = 4;
    element.text = 'test';
    element._updateCaratPosition();
    assert.deepEqual(element.$.hiddenText.innerHTML, element.text +
        element.$.caratSpan.outerHTML);
  });

  test('emoji dropdown is closed when iron-overlay-closed is fired', () => {
    const resetSpy = sandbox.spy(element, '_resetEmojiDropdown');
    element.$.emojiSuggestions.dispatchEvent(
        new CustomEvent('dropdown-closed', {
          composed: true, bubbles: true,
        }));
    assert.isTrue(resetSpy.called);
  });

  test('_onValueChanged fires bind-value-changed', () => {
    const listenerStub = sinon.stub();
    const eventObject = {currentTarget: {focused: false}};
    element.addEventListener('bind-value-changed', listenerStub);
    element._onValueChanged(eventObject);
    assert.isTrue(listenerStub.called);
  });

  suite('keyboard shortcuts', () => {
    function setupDropdown(callback) {
      MockInteractions.focus(element.$.textarea);
      element.$.textarea.selectionStart = 1;
      element.$.textarea.selectionEnd = 1;
      element.text = ':';
      element.$.textarea.selectionStart = 1;
      element.$.textarea.selectionEnd = 2;
      element.text = ':1';
      flushAsynchronousOperations();
    }

    test('escape key', () => {
      const resetSpy = sandbox.spy(element, '_resetEmojiDropdown');
      MockInteractions.pressAndReleaseKeyOn(element.$.textarea, 27);
      assert.isFalse(resetSpy.called);
      setupDropdown();
      MockInteractions.pressAndReleaseKeyOn(element.$.textarea, 27);
      assert.isTrue(resetSpy.called);
      assert.isFalse(!element.$.emojiSuggestions.isHidden);
    });

    test('up key', () => {
      const upSpy = sandbox.spy(element.$.emojiSuggestions, 'cursorUp');
      MockInteractions.pressAndReleaseKeyOn(element.$.textarea, 38);
      assert.isFalse(upSpy.called);
      setupDropdown();
      MockInteractions.pressAndReleaseKeyOn(element.$.textarea, 38);
      assert.isTrue(upSpy.called);
    });

    test('down key', () => {
      const downSpy = sandbox.spy(element.$.emojiSuggestions, 'cursorDown');
      MockInteractions.pressAndReleaseKeyOn(element.$.textarea, 40);
      assert.isFalse(downSpy.called);
      setupDropdown();
      MockInteractions.pressAndReleaseKeyOn(element.$.textarea, 40);
      assert.isTrue(downSpy.called);
    });

    test('enter key', () => {
      const enterSpy = sandbox.spy(element.$.emojiSuggestions,
          'getCursorTarget');
      MockInteractions.pressAndReleaseKeyOn(element.$.textarea, 13);
      assert.isFalse(enterSpy.called);
      setupDropdown();
      MockInteractions.pressAndReleaseKeyOn(element.$.textarea, 13);
      assert.isTrue(enterSpy.called);
      flushAsynchronousOperations();
      assert.equal(element.text, '💯');
    });

    test('enter key - ignored on just colon without more information', () => {
      const enterSpy = sandbox.spy(element.$.emojiSuggestions,
          'getCursorTarget');
      MockInteractions.pressAndReleaseKeyOn(element.$.textarea, 13);
      assert.isFalse(enterSpy.called);
      MockInteractions.focus(element.$.textarea);
      element.$.textarea.selectionStart = 1;
      element.$.textarea.selectionEnd = 1;
      element.text = ':';
      flushAsynchronousOperations();
      MockInteractions.pressAndReleaseKeyOn(element.$.textarea, 13);
      assert.isFalse(enterSpy.called);
    });
  });

  suite('gr-textarea monospace', () => {
  // gr-textarea set monospace class in the ready() method.
  // In Polymer2, ready() is called from the fixture(...) method,
  // If ready() is called again later, some nested elements doesn't
  // handle it correctly. A separate test-fixture is used to set
  // properties before ready() is called.

    let element;
    let sandbox;

    setup(() => {
      sandbox = sinon.sandbox.create();
      element = fixture('monospace');
    });

    teardown(() => {
      sandbox.restore();
    });

    test('monospace is set properly', () => {
      assert.isTrue(element.classList.contains('monospace'));
    });
  });

  suite('gr-textarea hideBorder', () => {
  // gr-textarea set noBorder class in the ready() method.
  // In Polymer2, ready() is called from the fixture(...) method,
  // If ready() is called again later, some nested elements doesn't
  // handle it correctly. A separate test-fixture is used to set
  // properties before ready() is called.

    let element;
    let sandbox;

    setup(() => {
      sandbox = sinon.sandbox.create();
      element = fixture('hideBorder');
    });

    teardown(() => {
      sandbox.restore();
    });

    test('hideBorder is set properly', () => {
      assert.isTrue(element.$.textarea.classList.contains('noBorder'));
    });
  });
});
</script>