// Instead of loading ChromeUtils.js into the test scope in browser-test.js for all tests,
// we only need ChromeUtils.js for a few files which is why we are using loadSubScript.
var ChromeUtils = {};
this._scriptLoader = Cc["@mozilla.org/moz/jssubscript-loader;1"].
                     getService(Ci.mozIJSSubScriptLoader);
this._scriptLoader.loadSubScript("chrome://mochikit/content/tests/SimpleTest/ChromeUtils.js", ChromeUtils);

XPCOMUtils.defineLazyModuleGetter(this, "FormHistory",
  "resource://gre/modules/FormHistory.jsm");

function test() {
  waitForExplicitFinish();

  const ENGINE_HTML_BASE = "http://mochi.test:8888/browser/browser/components/search/test/test.html";

  var searchEntries = ["test", "More Text", "Some Text"];
  var searchBar = BrowserSearch.searchBar;
  var searchButton = document.getAnonymousElementByAttribute(searchBar,
                     "anonid", "search-go-button");
  ok(searchButton, "got search-go-button");

  searchBar.value = "test";

  var ss = Services.search;

  let testIterator;

  function observer(aSub, aTopic, aData) {
    switch (aData) {
      case "engine-added":
        var engine = ss.getEngineByName("Bug 426329");
        ok(engine, "Engine was added.");
        //XXX Bug 493051
        //ss.currentEngine = engine;
        break;
      case "engine-current":
        ok(ss.currentEngine.name == "Bug 426329", "currentEngine set");
        testReturn();
        break;
      case "engine-removed":
        Services.obs.removeObserver(observer, "browser-search-engine-modified");
        finish();
        break;
    }
  }

  Services.obs.addObserver(observer, "browser-search-engine-modified", false);
  ss.addEngine("http://mochi.test:8888/browser/browser/components/search/test/426329.xml",
               Ci.nsISearchEngine.DATA_XML, "data:image/x-icon,%00",
               false);

  var preSelectedBrowser, preTabNo;
  function init() {
    preSelectedBrowser = gBrowser.selectedBrowser;
    preTabNo = gBrowser.tabs.length;
    searchBar.focus();
  }

  function testReturn() {
    init();
    EventUtils.synthesizeKey("VK_RETURN", {});
    doOnloadOnce(function(event) {

      is(gBrowser.tabs.length, preTabNo, "Return key did not open new tab");
      is(event.originalTarget, preSelectedBrowser.contentDocument,
         "Return key loaded results in current tab");
      is(event.originalTarget.URL, expectedURL(searchBar.value), "Check URL of search page opened");

      testAltReturn();
    });
  }

  function testAltReturn() {
    init();
    EventUtils.synthesizeKey("VK_RETURN", { altKey: true });
    doOnloadOnce(function(event) {

      is(gBrowser.tabs.length, preTabNo + 1, "Alt+Return key added new tab");
      isnot(event.originalTarget, preSelectedBrowser.contentDocument,
            "Alt+Return key loaded results in new tab");
      is(event.originalTarget, gBrowser.contentDocument,
         "Alt+Return key loaded results in foreground tab");
      is(event.originalTarget.URL, expectedURL(searchBar.value), "Check URL of search page opened");

      //Shift key has no effect for now, so skip it
      //testShiftAltReturn();
      testLeftClick();
    });
  }

  function testShiftAltReturn() {
    init();
    EventUtils.synthesizeKey("VK_RETURN", { shiftKey: true, altKey: true });
    doOnloadOnce(function(event) {

      is(gBrowser.tabs.length, preTabNo + 1, "Shift+Alt+Return key added new tab");
      isnot(event.originalTarget, preSelectedBrowser.contentDocument,
            "Shift+Alt+Return key loaded results in new tab");
      isnot(event.originalTarget, gBrowser.contentDocument,
            "Shift+Alt+Return key loaded results in background tab");
      is(event.originalTarget.URL, expectedURL(searchBar.value), "Check URL of search page opened");

      testLeftClick();
    });
  }

  function testLeftClick() {
    init();
    simulateClick({ button: 0 }, searchButton);
    doOnloadOnce(function(event) {

      is(gBrowser.tabs.length, preTabNo, "LeftClick did not open new tab");
      is(event.originalTarget, preSelectedBrowser.contentDocument,
         "LeftClick loaded results in current tab");
      is(event.originalTarget.URL, expectedURL(searchBar.value), "Check URL of search page opened");

      testMiddleClick();
    });
  }

  function testMiddleClick() {
    init();
    simulateClick({ button: 1 }, searchButton);
    doOnloadOnce(function(event) {

      is(gBrowser.tabs.length, preTabNo + 1, "MiddleClick added new tab");
      isnot(event.originalTarget, preSelectedBrowser.contentDocument,
            "MiddleClick loaded results in new tab");
      is(event.originalTarget, gBrowser.contentDocument,
         "MiddleClick loaded results in foreground tab");
      is(event.originalTarget.URL, expectedURL(searchBar.value), "Check URL of search page opened");

      testShiftMiddleClick();
    });
  }

  function testShiftMiddleClick() {
    init();
    simulateClick({ button: 1, shiftKey: true }, searchButton);
    doOnloadOnce(function(event) {

      is(gBrowser.tabs.length, preTabNo + 1, "Shift+MiddleClick added new tab");
      isnot(event.originalTarget, preSelectedBrowser.contentDocument,
            "Shift+MiddleClick loaded results in new tab");
      isnot(event.originalTarget, gBrowser.contentDocument,
            "Shift+MiddleClick loaded results in background tab");
      is(event.originalTarget.URL, expectedURL(searchBar.value), "Check URL of search page opened");

      testDropText();
     });
   }
 
  // prevent the search buttonmenu from opening during the drag tests
  function stopPopup(event) { event.preventDefault(); }

  function testDropText() {
    init();
    searchBar.addEventListener("popupshowing", stopPopup, true);
    // drop on the search button so that we don't need to worry about the
    // default handlers for textboxes.
    ChromeUtils.synthesizeDrop(searchBar.searchButton, searchBar.searchButton, [[ {type: "text/plain", data: "Some Text" } ]], "copy", window);
    doOnloadOnce(function(event) {
      is(searchBar.value, "Some Text", "drop text/plain on searchbar");
      testDropInternalText();
    });
  }

  function testDropInternalText() {
    init();
    ChromeUtils.synthesizeDrop(searchBar.searchButton, searchBar.searchButton, [[ {type: "text/x-moz-text-internal", data: "More Text" } ]], "copy", window);
    doOnloadOnce(function(event) {
      is(searchBar.value, "More Text", "drop text/x-moz-text-internal on searchbar");
      testDropLink();
    });
  }

  function testDropLink() {
    init();
    ChromeUtils.synthesizeDrop(searchBar.searchButton, searchBar.searchButton, [[ {type: "text/uri-list", data: "http://www.mozilla.org" } ]], "copy", window);
    is(searchBar.value, "More Text", "drop text/uri-list on searchbar");
    SimpleTest.executeSoon(testRightClick);
  }

  function testRightClick() {
    init();
    searchBar.removeEventListener("popupshowing", stopPopup, true);
    content.location.href = "about:blank";
    simulateClick({ button: 2 }, searchButton);
    setTimeout(function() {
      is(gBrowser.tabs.length, preTabNo, "RightClick did not open new tab");
      is(gBrowser.currentURI.spec, "about:blank", "RightClick did nothing");

      testIterator = testSearchHistory();
      testIterator.next();
    }, 5000);
  }

  function countEntries(name, value, message) {
    let count = 0;
    FormHistory.count({ fieldname: name, value: value },
                      { handleResult: function(result) { count = result; },
                        handleError: function(error) { throw error; },
                        handleCompletion: function(reason) {
                          if (!reason) {
                            ok(count > 0, message);
                            testIterator.next();
                          }
                        }
                      });
  }

  function testSearchHistory() {
    var textbox = searchBar._textbox;
    for (var i = 0; i < searchEntries.length; i++) {
      yield countEntries(textbox.getAttribute("autocompletesearchparam"), searchEntries[i],
                         "form history entry '" + searchEntries[i] + "' should exist");
    }
    testAutocomplete();
  }

  function testAutocomplete() {
    var popup = searchBar.textbox.popup;
    popup.addEventListener("popupshown", function testACPopupShowing() {
      popup.removeEventListener("popupshown", testACPopupShowing);
      checkMenuEntries(searchEntries);
      testClearHistory();
    });
    searchBar.textbox.showHistoryPopup();
  }

  function testClearHistory() {
    let controller = searchBar.textbox.controllers.getControllerForCommand("cmd_clearhistory")
    ok(controller.isCommandEnabled("cmd_clearhistory"), "Clear history command enabled");
    controller.doCommand("cmd_clearhistory");
    let count = 0;
    FormHistory.count({ },
                      { handleResult: function(result) { count = result; },
                        handleError: function(error) { throw error; },
                        handleCompletion: function(reason) {
                          if (!reason) {
                            ok(count == 0, "History cleared");
                            finalize();
                          }
                        }
                      });
  }

  function finalize() {
    searchBar.value = "";
    while (gBrowser.tabs.length != 1) {
      gBrowser.removeTab(gBrowser.tabs[0]);
    }
    content.location.href = "about:blank";
    var engine = ss.getEngineByName("Bug 426329");
    ss.removeEngine(engine);
  }

  function simulateClick(aEvent, aTarget) {
    var event = document.createEvent("MouseEvent");
    var ctrlKeyArg  = aEvent.ctrlKey  || false;
    var altKeyArg   = aEvent.altKey   || false;
    var shiftKeyArg = aEvent.shiftKey || false;
    var metaKeyArg  = aEvent.metaKey  || false;
    var buttonArg   = aEvent.button   || 0;
    event.initMouseEvent("click", true, true, window,
                          0, 0, 0, 0, 0,
                          ctrlKeyArg, altKeyArg, shiftKeyArg, metaKeyArg,
                          buttonArg, null);
    aTarget.dispatchEvent(event);
  }

  function expectedURL(aSearchTerms) {
    var textToSubURI = Cc["@mozilla.org/intl/texttosuburi;1"].
                       getService(Ci.nsITextToSubURI);
    var searchArg = textToSubURI.ConvertAndEscape("utf-8", aSearchTerms);
    return ENGINE_HTML_BASE + "?test=" + searchArg;
  }

  // modified from toolkit/components/satchel/test/test_form_autocomplete.html
  function checkMenuEntries(expectedValues) {
    var actualValues = getMenuEntries();
    is(actualValues.length, expectedValues.length, "Checking length of expected menu");
    for (var i = 0; i < expectedValues.length; i++)
      is(actualValues[i], expectedValues[i], "Checking menu entry #" + i);
  }

  function getMenuEntries() {
    var entries = [];
    var autocompleteMenu = searchBar.textbox.popup;
    // Could perhaps pull values directly from the controller, but it seems
    // more reliable to test the values that are actually in the tree?
    var column = autocompleteMenu.tree.columns[0];
    var numRows = autocompleteMenu.tree.view.rowCount;
    for (var i = 0; i < numRows; i++) {
      entries.push(autocompleteMenu.tree.view.getValueAt(i, column));
    }
    return entries;
  }
}