// Copyright 2007 The Closure Library Authors. All Rights Reserved.
//
// 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.
// See the License for the specific language governing permissions and
// limitations under the License.

goog.provide('goog.editor.icontentTest');
goog.setTestOnly('goog.editor.icontentTest');

goog.require('goog.dom');
goog.require('goog.dom.TagName');
goog.require('goog.editor.BrowserFeature');
goog.require('goog.editor.icontent');
goog.require('goog.editor.icontent.FieldFormatInfo');
goog.require('goog.editor.icontent.FieldStyleInfo');
goog.require('goog.testing.PropertyReplacer');
goog.require('goog.testing.jsunit');
goog.require('goog.userAgent');

var wrapperDiv;
var realIframe;
var realIframeDoc;
var propertyReplacer;

function setUp() {
  wrapperDiv = goog.dom.createDom(
      goog.dom.TagName.DIV, null,
      realIframe = goog.dom.createDom(goog.dom.TagName.IFRAME));
  goog.dom.appendChild(document.body, wrapperDiv);
  realIframeDoc = realIframe.contentWindow.document;
  propertyReplacer = new goog.testing.PropertyReplacer();
}

function tearDown() {
  goog.dom.removeNode(wrapperDiv);
  propertyReplacer.reset();
}

function testWriteHttpsInitialIframeContent() {
  // This is not a particularly useful test; it's just a sanity check to make
  // sure nothing explodes
  var info =
      new goog.editor.icontent.FieldFormatInfo('id', false, false, false);
  var doc = createMockDocument();
  goog.editor.icontent.writeHttpsInitialIframe(info, doc, 'some html');
  assertBodyCorrect(doc.body, 'id', 'some html');
}

function testWriteHttpsInitialIframeContentRtl() {
  var info = new goog.editor.icontent.FieldFormatInfo('id', false, false, true);
  var doc = createMockDocument();
  goog.editor.icontent.writeHttpsInitialIframe(info, doc, 'some html');
  assertBodyCorrect(doc.body, 'id', 'some html', true);
}

function testWriteInitialIframeContentBlendedStandardsGrowing() {
  if (goog.editor.BrowserFeature.HAS_CONTENT_EDITABLE) {
    return;  // only executes when using an iframe
  }

  var info = new goog.editor.icontent.FieldFormatInfo('id', true, true, false);
  var styleInfo = new goog.editor.icontent.FieldStyleInfo(
      wrapperDiv, '.MyClass { position: absolute; top: 500px; }');
  var doc = realIframeDoc;
  var html = '<div class="MyClass">Some Html</div>';
  goog.editor.icontent.writeNormalInitialBlendedIframe(
      info, html, styleInfo, realIframe);

  assertBodyCorrect(doc.body, 'id', html);
  assertEquals('CSS1Compat', doc.compatMode);              // standards
  assertEquals('auto', doc.documentElement.style.height);  // growing
  assertEquals('100%', doc.body.style.height);             // standards
  assertEquals('hidden', doc.body.style.overflowY);        // growing
  assertEquals('', realIframe.style.position);  // no padding on wrapper

  assertEquals(500, doc.body.firstChild.offsetTop);
  assert(
      goog.dom.getElementsByTagName(goog.dom.TagName.STYLE, doc)[0]
          .innerHTML.indexOf('-moz-force-broken-image-icon') !=
      -1);  // standards
}

function testWriteInitialIframeContentBlendedQuirksFixedRtl() {
  if (goog.editor.BrowserFeature.HAS_CONTENT_EDITABLE) {
    return;  // only executes when using an iframe
  }

  var info = new goog.editor.icontent.FieldFormatInfo('id', false, true, true);
  var styleInfo = new goog.editor.icontent.FieldStyleInfo(wrapperDiv, '');
  wrapperDiv.style.padding = '2px 5px';
  var doc = realIframeDoc;
  var html = 'Some Html';
  goog.editor.icontent.writeNormalInitialBlendedIframe(
      info, html, styleInfo, realIframe);

  assertBodyCorrect(doc.body, 'id', html, true);
  assertEquals('BackCompat', doc.compatMode);              // quirks
  assertEquals('100%', doc.documentElement.style.height);  // fixed height
  assertEquals('auto', doc.body.style.height);             // quirks
  assertEquals('auto', doc.body.style.overflow);           // fixed height

  assertEquals('-2px', realIframe.style.marginTop);
  assertEquals('-5px', realIframe.style.marginLeft);
  assert(
      goog.dom.getElementsByTagName(goog.dom.TagName.STYLE, doc)[0]
          .innerHTML.indexOf('-moz-force-broken-image-icon') == -1);  // quirks
}

function testWhiteboxStandardsFixedRtl() {
  var info = new goog.editor.icontent.FieldFormatInfo('id', true, false, true);
  var styleInfo = null;
  var doc = realIframeDoc;
  var html = 'Some Html';
  goog.editor.icontent.writeNormalInitialBlendedIframe(
      info, html, styleInfo, realIframe);
  assertBodyCorrect(doc.body, 'id', html, true);

  // TODO(nicksantos): on Safari, there's a bug where all written iframes
  // are CSS1Compat. It's fixed in the nightlies as of 3/31/08, so remove
  // this guard when the latest version of Safari is on the farm.
  if (!goog.userAgent.WEBKIT) {
    assertEquals(
        'BackCompat', doc.compatMode);  // always use quirks in whitebox
  }
}

function testGetInitialIframeContent() {
  var info = new goog.editor.icontent.FieldFormatInfo('id', true, false, false);
  var styleInfo = null;
  var html = 'Some Html';
  propertyReplacer.set(
      goog.editor.BrowserFeature, 'HAS_CONTENT_EDITABLE', false);
  var htmlOut =
      goog.editor.icontent.getInitialIframeContent_(info, html, styleInfo);
  assertEquals(/contentEditable/i.test(htmlOut), false);
  propertyReplacer.set(
      goog.editor.BrowserFeature, 'HAS_CONTENT_EDITABLE', true);
  htmlOut =
      goog.editor.icontent.getInitialIframeContent_(info, html, styleInfo);
  assertEquals(/<body[^>]+?contentEditable/i.test(htmlOut), true);
  assertEquals(/<html[^>]+?style="[^>"]*min-width:\s*0/i.test(htmlOut), true);
  assertEquals(/<body[^>]+?style="[^>"]*min-width:\s*0/i.test(htmlOut), true);
}

function testIframeMinWidthOverride() {
  if (goog.editor.BrowserFeature.HAS_CONTENT_EDITABLE) {
    return;  // only executes when using an iframe
  }

  var info = new goog.editor.icontent.FieldFormatInfo('id', true, true, false);
  var styleInfo = new goog.editor.icontent.FieldStyleInfo(
      wrapperDiv, '.MyClass { position: absolute; top: 500px; }');
  var doc = realIframeDoc;
  var html = '<div class="MyClass">Some Html</div>';
  goog.editor.icontent.writeNormalInitialBlendedIframe(
      info, html, styleInfo, realIframe);

  // Make sure that the minimum width isn't being inherited from the parent
  // document's style.
  assertTrue(doc.body.offsetWidth < 700);
}

function testBlendedStandardsGrowingMatchesComparisonDiv() {
  // TODO(nicksantos): If we ever move
  // TR_EditableUtil.prototype.makeIframeField_
  // into goog.editor.icontent (and I think we should), we could actually run
  // functional tests to ensure that the iframed field matches the dimensions
  // of the equivalent uneditable div. Functional tests would help a lot here.
}


/**
 * Check a given body for the most basic properties that all iframes must have.
 *
 * @param {Element} body The actual body element
 * @param {string} id The expected id
 * @param {string} bodyHTML The expected innerHTML
 * @param {boolean=} opt_rtl If true, expect RTL directionality
 */
function assertBodyCorrect(body, id, bodyHTML, opt_rtl) {
  assertEquals(bodyHTML, body.innerHTML);
  // We can't just check
  // assert(HAS_CONTENTE_EDITABLE, !!body.contentEditable) since in
  // FF 3 we don't currently use contentEditable, but body.contentEditable
  // = 'inherit' and !!'inherit' = true.
  if (goog.editor.BrowserFeature.HAS_CONTENT_EDITABLE) {
    assertEquals('true', String(body.contentEditable));
  } else {
    assertNotEquals('true', String(body.contentEditable));
  }
  assertContains('editable', body.className.match(/\S+/g));
  assertEquals('true', String(body.getAttribute('g_editable')));
  assertEquals(
      'true',
      // IE has bugs with getAttribute('hideFocus'), and
      // Webkit has bugs with normal .hideFocus access.
      String(
          goog.userAgent.IE ? body.hideFocus : body.getAttribute('hideFocus')));
  assertEquals(id, body.id);
}


/**
 * @return {Object} A mock document
 */
function createMockDocument() {
  return {
    body: {
      setAttribute: function(key, val) { this[key] = val; },
      getAttribute: function(key) { return this[key]; },
      style: {direction: ''}
    }
  };
}