}, (rgbForm) => {
              Representing.setValue(rgbForm, {
                hex: Option.from(m[1]).getOr('')
              });

              // So not the way to do this.
              Form.getField(rgbForm, 'hex').each((hexField) => {
                AlloyTriggers.emit(hexField, NativeEvents.input());
              });
            });

  const allTabs = Arr.map(spec.tabs, function (tab) {
    return {
      value: tab.title,
      dom: {
        tag: 'div',
        classes: [ 'tox-dialog__body-nav-item' ],
        innerHtml: backstage.shared.providers.translate(tab.title)
      },
      view () {
        return [
          // Dupe with SilverDialog
          AlloyForm.sketch((parts) => {
            return {
              dom: {
                tag: 'div',
                classes: [ 'tox-form' ]
              },
              components: Arr.map(tab.items, (item) => interpretInForm(parts, item, backstage)),
              formBehaviours: Behaviour.derive([
                Keying.config({
                  mode: 'acyclic',
                  useTabstopAt: Fun.not(NavigableObject.isPseudoStop)
                }),

                AddEventsBehaviour.config('TabView.form.events', [
                  AlloyEvents.runOnAttached(setDataOnForm),
                  AlloyEvents.runOnDetached(updateDataWithForm)
                ]),
                Receiving.config({
                  channels: Objects.wrapAll([
                    {
                      key: SendDataToSectionChannel,
                      value:  {
                        onReceive: updateDataWithForm
                      }
                    },
                    {
                      key: SendDataToViewChannel,
                      value: {
                        onReceive: setDataOnForm
                      }
                    }
                  ])
                })
              ])
            };
          })
        ];
      }
    };
  });

const renderBodyPanel = <I>(spec: BodyPanelFoo<I>, backstage: UiFactoryBackstage): SimpleSpec => {
  const memForm = Memento.record(
    AlloyForm.sketch((parts) => {
      return {
        dom: {
          tag: 'div',
          classes: [ 'tox-form' ]
        },
        // All of the items passed through the form need to be put through the interpreter
        // with their form part preserved.
        components: Arr.map(spec.items, (item) => {
          return interpretInForm(parts, item, backstage);
        })
      };
    })
  );

  return {
    dom: {
      tag: 'div',
      classes: [ 'tox-dialog__body' ]
    },
    components: [
      {
        dom: {
          tag: 'div',
          classes: ['tox-dialog__body-content']
        },
        components: [
          memForm.asSpec()
        ]
      }
    ],
    behaviours: Behaviour.derive([
      Keying.config({
        mode: 'acyclic',
        useTabstopAt: Fun.not(NavigableObject.isPseudoStop)
      }),
      ComposingConfigs.memento(memForm),
      RepresentingConfigs.memento(memForm, {
        postprocess: (formValue) => FormValues.toValidValues(formValue).fold(
          (err) => {
            console.error(err);
            return { };
          },
          (vals) => vals
        )
      })
    ])
  };
};

const getCompByName = (access: DialogAccess<any>, name: string): Option<AlloyComponent> => {
  // TODO: Add API to alloy to find the inner most component of a Composing chain.
  const root = access.getRoot();
  // This is just to avoid throwing errors if the dialog closes before this. We should take it out
  // while developing (probably), and put it back in for the real thing.
  if (root.getSystem().isConnected()) {
    const form = Composing.getCurrent(access.getFormWrapper()).getOr(access.getFormWrapper());
    return Form.getField(form, name).fold(() => {
      const footer = access.getFooter();
      const footerState = Reflecting.getState(footer);
      return footerState.get().bind((f) => f.lookupByName(form, name));
    }, (comp) => {
      return Option.some(comp);
    });
  } else {
    return Option.none();
  }
};

const sketch = function (rawSpec) {
  const navigateEvent = 'navigateEvent';

  const wrapperAdhocEvents = 'serializer-wrapper-events';
  const formAdhocEvents = 'form-events';

  const schema = ValueSchema.objOf([
    FieldSchema.strict('fields'),
    // Used for when datafields are present.
    FieldSchema.defaulted('maxFieldIndex', rawSpec.fields.length - 1),
    FieldSchema.strict('onExecute'),
    FieldSchema.strict('getInitialValue'),
    FieldSchema.state('state', function () {
      return {
        dialogSwipeState: Singleton.value(),
        currentScreen: Cell(0)
      };
    })
  ]);

  const spec = ValueSchema.asRawOrDie('SerialisedDialog', schema, rawSpec);

  const navigationButton = function (direction, directionName, enabled) {
    return Button.sketch({
      dom: UiDomFactory.dom('<span class="${prefix}-icon-' + directionName + ' ${prefix}-icon"></span>'),
      action (button) {
        AlloyTriggers.emitWith(button, navigateEvent, { direction });
      },
      buttonBehaviours: Behaviour.derive([
        Disabling.config({
          disableClass: Styles.resolve('toolbar-navigation-disabled'),
          disabled: !enabled
        })
      ])
    });
  };

  const reposition = function (dialog, message) {
    SelectorFind.descendant(dialog.element(), '.' + Styles.resolve('serialised-dialog-chain')).each(function (parent) {
      Css.set(parent, 'left', (-spec.state.currentScreen.get() * message.width) + 'px');
    });
  };

  const navigate = function (dialog, direction) {
    const screens = SelectorFilter.descendants(dialog.element(), '.' + Styles.resolve('serialised-dialog-screen'));
    SelectorFind.descendant(dialog.element(), '.' + Styles.resolve('serialised-dialog-chain')).each(function (parent) {
      if ((spec.state.currentScreen.get() + direction) >= 0 && (spec.state.currentScreen.get() + direction) < screens.length) {
        Css.getRaw(parent, 'left').each(function (left) {
          const currentLeft = parseInt(left, 10);
          const w = Width.get(screens[0]);
          Css.set(parent, 'left', (currentLeft - (direction * w)) + 'px');
        });
        spec.state.currentScreen.set(spec.state.currentScreen.get() + direction);
      }
    });
  };

  // Unfortunately we need to inspect the DOM to find the input that is currently on screen
  const focusInput = function (dialog) {
    const inputs = SelectorFilter.descendants(dialog.element(), 'input');
    const optInput = Option.from(inputs[spec.state.currentScreen.get()]);
    optInput.each(function (input) {
      dialog.getSystem().getByDom(input).each(function (inputComp) {
        AlloyTriggers.dispatchFocus(dialog, inputComp.element());
      });
    });
    const dotitems = memDots.get(dialog);
    Highlighting.highlightAt(dotitems, spec.state.currentScreen.get());
  };

  const resetState = function () {
    spec.state.currentScreen.set(0);
    spec.state.dialogSwipeState.clear();
  };

  const memForm = Memento.record(
    Form.sketch(function (parts) {
      return {
        dom: UiDomFactory.dom('<div class="${prefix}-serialised-dialog"></div>'),
        components: [
          Container.sketch({
            dom: UiDomFactory.dom('<div class="${prefix}-serialised-dialog-chain" style="left: 0px; position: absolute;"></div>'),
            components: Arr.map(spec.fields, function (field, i) {
              return i <= spec.maxFieldIndex ? Container.sketch({
                dom: UiDomFactory.dom('<div class="${prefix}-serialised-dialog-screen"></div>'),
                components: [
                  navigationButton(-1, 'previous', (i > 0)),
                  parts.field(field.name, field.spec),
                  navigationButton(+1, 'next', (i < spec.maxFieldIndex))
                ]
              }) : parts.field(field.name, field.spec);
            })
          })
        ],

        formBehaviours: Behaviour.derive([
          Receivers.orientation(function (dialog, message) {
            reposition(dialog, message);
          }),
          Keying.config({
//.........这里部分代码省略.........