/* Any copyright is dedicated to the Public Domain.
   http://creativecommons.org/publicdomain/zero/1.0/ */

function test() {
  let cw;
  let win;
  let groupItem;

  let next = function () {
    let test = tests.shift();

    if (test) {
      test();
      return;
    }

    win.close();
    finish();
  }

  let closeTabItemManually = function (tabItem) {
    EventUtils.synthesizeMouseAtCenter(tabItem.container, {button: 1}, cw);
  }

  let prepareTest = function (testName) {
    let originalBounds = groupItem.getChild(0).getBounds();

    let tabItem = groupItem.getChild(1);
    let bounds = tabItem.getBounds();
    closeTabItemManually(tabItem);

    ok(originalBounds.equals(groupItem.getChild(0).getBounds()), testName + ': tabs did not change their size');
    ok(bounds.equals(groupItem.getChild(1).getBounds()), testName + ': third tab is now on second tab\'s previous position');
    
    return originalBounds;
  }

  let cleanUpTest = function (testName, originalBounds, callback) {
    // Use setTimeout here because the groupItem.arrange() call uses
    // animation to re-arrange the tabItems.
    win.setTimeout(function () {
      ok(!originalBounds.equals(groupItem.getChild(0).getBounds()), testName + ': tabs changed their size');

      // cleanup
      cw.UI.setActive(groupItem);
      win.gBrowser.loadOneTab('about:blank', {inBackground: true});
      afterAllTabsLoaded(callback, win);
    }, 500);
  }

  let tests = [];

  // focus group title's input field to cause item arrange
  let testFocusTitle = function () {
    let originalBounds = prepareTest('testFocusTitle');

    let target = groupItem.$titleShield[0];
    EventUtils.synthesizeMouseAtCenter(target, {}, cw);

    cleanUpTest('testFocusTitle', originalBounds, next);
  }

  // hide tabview to cause item arrange
  let testHideTabView = function () {
    let originalBounds = prepareTest('testHideTabView');

    hideTabView(function () {
      cleanUpTest('testHideTabView', originalBounds, function () {
        showTabView(next, win);
      });
    }, win);
  }

  // (undo) close a group to cause item arrange
  let testCloseGroupUndo = function () {
    let originalBounds = prepareTest('testCloseGroupUndo');

    hideGroupItem(groupItem, function () {
      unhideGroupItem(groupItem, function () {
        cleanUpTest('testCloseGroupUndo', originalBounds, next);
      });
    });
  }

  // leave the group's container with the mouse to cause item arrange
  let testMouseOut = function () {
    let originalBounds = prepareTest('testMouseOut');
    let doc = cw.document.documentElement;
    let bounds = groupItem.getBounds();

    EventUtils.synthesizeMouse(doc, bounds.right - 5, bounds.bottom - 5, {type: 'mousemove'}, cw);
    ok(originalBounds.equals(groupItem.getChild(0).getBounds()), 'testMouseOut: tabs did not change their size');

    EventUtils.synthesizeMouse(doc, bounds.right + 1, bounds.bottom + 1, {type: 'mousemove'}, cw);
    cleanUpTest('testMouseOut', originalBounds, next);
  }

  // sort item (drag it around) in its group to cause item arrange
  let testSortInGroup = function () {
    let originalBounds = prepareTest('testSortInGroup');
    let target = groupItem.getChild(0).container;

    // simulate drag/drop sorting
    EventUtils.synthesizeMouse(target, 20, 20, {type: 'mousedown'}, cw);
    EventUtils.synthesizeMouse(target, 40, 20, {type: 'mousemove'}, cw);
    EventUtils.synthesizeMouse(target, 20, 20, {type: 'mouseup'}, cw);

    cleanUpTest('testSortInGroup', originalBounds, next);
  }

  // arrange items when the containing group is resized
  let testResizeGroup = function () {
    let originalBounds = prepareTest('testResizeGroup');
    let oldBounds = groupItem.getBounds();
    let resizer = groupItem.$resizer[0];

    // simulate drag/drop resizing
    EventUtils.synthesizeMouse(resizer, 5, 5, {type: 'mousedown'}, cw);
    EventUtils.synthesizeMouse(resizer, 40, 20, {type: 'mousemove'}, cw);
    EventUtils.synthesizeMouse(resizer, 20, 20, {type: 'mouseup'}, cw);

    // reset group size
    groupItem.setBounds(oldBounds);
    groupItem.setUserSize();

    cleanUpTest('testResizeGroup', originalBounds, next);
  }

  // make sure we don't freeze item size when removing an item from a stack
  let testRemoveWhileStacked = function () {
    let oldBounds = groupItem.getBounds();
    groupItem.setSize(250, 250, true);
    groupItem.setUserSize();

    ok(!groupItem.isStacked(), 'testRemoveWhileStacked: group is not stacked');

    let originalBounds;
    let tabItem = groupItem.getChild(0);

    // add new tabs to let the group stack
    while (!groupItem.isStacked()) {
      originalBounds = tabItem.getBounds();
      win.gBrowser.addTab();
    }

    afterAllTabsLoaded(function () {
      tabItem.close();
      ok(!groupItem.isStacked(), 'testRemoveWhileStacked: group is not stacked');

      let bounds = groupItem.getChild(0).getBounds();
      ok(originalBounds.equals(bounds), 'testRemoveWhileStacked: tabs did not change their size');

      // reset group size
      groupItem.setBounds(oldBounds);
      groupItem.setUserSize();

      next();
    }, win);
  }

  // 1) make sure item size is frozen when removing an item in expanded mode
  // 2) make sure item size stays frozen while moving the mouse in the expanded
  // layer
  let testExpandedMode = function () {
    let oldBounds = groupItem.getBounds();
    groupItem.setSize(100, 100, true);
    groupItem.setUserSize();

    ok(groupItem.isStacked(), 'testExpandedMode: group is stacked');

    groupItem.addSubscriber('expanded', function onGroupExpanded() {
      groupItem.removeSubscriber('expanded', onGroupExpanded);
      onExpanded();
    });

    groupItem.addSubscriber('collapsed', function onGroupCollapsed() {
      groupItem.removeSubscriber('collapsed', onGroupCollapsed);
      onCollapsed();
    });

    let onExpanded = function () {
      let originalBounds = groupItem.getChild(0).getBounds();
      let tabItem = groupItem.getChild(1);
      let bounds = tabItem.getBounds();

      while (groupItem.getChildren().length > 2)
        closeTabItemManually(groupItem.getChild(1));

      ok(originalBounds.equals(groupItem.getChild(0).getBounds()), 'testExpandedMode: tabs did not change their size');

      // move the mouse over the expanded layer
      let trayBounds = groupItem.expanded.bounds;
      let target = groupItem.expanded.$tray[0];
      EventUtils.synthesizeMouse(target, trayBounds.right - 5, trayBounds.bottom -5, {type: 'mousemove'}, cw);

      ok(originalBounds.equals(groupItem.getChild(0).getBounds()), 'testExpandedMode: tabs did not change their size');
      groupItem.collapse();
    }

    let onCollapsed = function () {
      // reset group size
      groupItem.setBounds(oldBounds);
      groupItem.setUserSize();

      next();
    }

    groupItem.expand();
  }

  tests.push(testFocusTitle);
  tests.push(testHideTabView);
  tests.push(testCloseGroupUndo);
  tests.push(testMouseOut);
  tests.push(testSortInGroup);
  tests.push(testResizeGroup);
  tests.push(testRemoveWhileStacked);
  tests.push(testExpandedMode);

  waitForExplicitFinish();

  newWindowWithTabView(function (tvwin) {
    win = tvwin;

    registerCleanupFunction(function () {
      if (!win.closed)
        win.close();
    });

    cw = win.TabView.getContentWindow();

    groupItem = cw.GroupItems.groupItems[0];
    groupItem.setSize(400, 200, true);
    groupItem.setUserSize();

    for (let i=0; i<3; i++)
      win.gBrowser.loadOneTab('about:blank', {inBackground: true});

    afterAllTabsLoaded(next, win);
  });
}