gecko/browser/devtools/styleinspector/test/browser_computedview_copy.js

/* vim: set ts=2 et sw=2 tw=80: */
/* Any copyright is dedicated to the Public Domain.
 http://creativecommons.org/publicdomain/zero/1.0/ */

// Tests that the style inspector works properly

let doc;
let win;
let computedView;

XPCOMUtils.defineLazyGetter(this, "osString", function() {
  return Cc["@mozilla.org/xre/app-info;1"].getService(Ci.nsIXULRuntime).OS;
});

function createDocument()
{
  doc.body.innerHTML = '<style type="text/css"> ' +
    'span { font-variant: small-caps; color: #000000; } ' +
    '.nomatches {color: #ff0000;}</style> <div id="first" style="margin: 10em; ' +
    'font-size: 14pt; font-family: helvetica, sans-serif; color: #AAA">\n' +
    '<h1>Some header text</h1>\n' +
    '<p id="salutation" style="font-size: 12pt">hi.</p>\n' +
    '<p id="body" style="font-size: 12pt">I am a test-case. This text exists ' +
    'solely to provide some things to <span style="color: yellow">' +
    'highlight</span> and <span style="font-weight: bold">count</span> ' +
    'style list-items in the box at right. If you are reading this, ' +
    'you should go do something else instead. Maybe read a book. Or better ' +
    'yet, write some test-cases for another bit of code. ' +
    '<span style="font-style: italic">some text</span></p>\n' +
    '<p id="closing">more text</p>\n' +
    '<p>even more text</p>' +
    '</div>';
  doc.title = "Computed view context menu test";

  openComputedView(selectNode);
}

function selectNode(aInspector, aComputedView)
{
  computedView = aComputedView;
  win = aInspector.sidebar.getWindowForTab("computedview");

  let span = doc.querySelector("span");
  ok(span, "captain, we have the span");

  aInspector.selection.setNode(span);
  aInspector.once("inspector-updated", runStyleInspectorTests);
}


function runStyleInspectorTests()
{
  let contentDocument = computedView.styleDocument;
  let prop = contentDocument.querySelector(".property-view");
  ok(prop, "captain, we have the property-view node");

  checkCopySelection();
}

function checkCopySelection()
{
  let contentDocument = computedView.styleDocument;
  let props = contentDocument.querySelectorAll(".property-view");
  ok(props, "captain, we have the property-view nodes");

  let range = document.createRange();
  range.setStart(props[1], 0);
  range.setEnd(props[3], 3);
  win.getSelection().addRange(range);

  info("Checking that cssHtmlTree.siBoundCopy() " +
       " returns the correct clipboard value");

  let expectedPattern = "font-family: helvetica,sans-serif;[\\r\\n]+" +
                        "font-size: 16px;[\\r\\n]+" +
                        "font-variant: small-caps;[\\r\\n]*";

  SimpleTest.waitForClipboard(function CS_boundCopyCheck() {
    return checkClipboardData(expectedPattern);
  },
  function() {
    fireCopyEvent(props[0]);
  },
  checkSelectAll,
  function() {
    failedClipboard(expectedPattern, checkSelectAll);
  });
}

function checkSelectAll()
{
  let contentDoc = computedView.styleDocument;
  let prop = contentDoc.querySelector(".property-view");

  info("Checking that _SelectAll() then copy returns the correct clipboard value");
  computedView._onSelectAll();
  let expectedPattern = "color: #FF0;[\\r\\n]+" +
                        "font-family: helvetica,sans-serif;[\\r\\n]+" +
                        "font-size: 16px;[\\r\\n]+" +
                        "font-variant: small-caps;[\\r\\n]*";

  SimpleTest.waitForClipboard(function() {
    return checkClipboardData(expectedPattern);
  },
  function() {
    fireCopyEvent(prop);
  },
  finishUp,
  function() {
    failedClipboard(expectedPattern, finishUp);
  });
}

function checkClipboardData(aExpectedPattern)
{
  let actual = SpecialPowers.getClipboardData("text/unicode");
  let expectedRegExp = new RegExp(aExpectedPattern, "g");
  return expectedRegExp.test(actual);
}

function failedClipboard(aExpectedPattern, aCallback)
{
  // Format expected text for comparison
  let terminator = osString == "WINNT" ? "\r\n" : "\n";
  aExpectedPattern = aExpectedPattern.replace(/\[\\r\\n\][+*]/g, terminator);
  aExpectedPattern = aExpectedPattern.replace(/\\\(/g, "(");
  aExpectedPattern = aExpectedPattern.replace(/\\\)/g, ")");

  let actual = SpecialPowers.getClipboardData("text/unicode");

  // Trim the right hand side of our strings. This is because expectedPattern
  // accounts for windows sometimes adding a newline to our copied data.
  aExpectedPattern = aExpectedPattern.trimRight();
  actual = actual.trimRight();

  dump("TEST-UNEXPECTED-FAIL | Clipboard text does not match expected ... " +
    "results (escaped for accurate comparison):\n");
  info("Actual: " + escape(actual));
  info("Expected: " + escape(aExpectedPattern));
  aCallback();
}

function finishUp()
{
  computedView = doc = win = null;
  gBrowser.removeCurrentTab();
  finish();
}

function test()
{
  waitForExplicitFinish();
  gBrowser.selectedTab = gBrowser.addTab();
  gBrowser.selectedBrowser.addEventListener("load", function(evt) {
    gBrowser.selectedBrowser.removeEventListener(evt.type, arguments.callee, true);
    doc = content.document;
    waitForFocus(createDocument, content);
  }, true);

  content.location = "data:text/html,computed view context menu test";
}