export const renderSelectBox = (spec: Types.SelectBox.SelectBox, providersBackstage: UiFactoryBackstageProviders): SketchSpec => {
  const translatedOptions = Arr.map(spec.items, (item) => {
    return {
      text: providersBackstage.translate(item.text),
      value: item.value
    };
  });

  // DUPE with TextField.
  const pLabel = spec.label.map((label) => renderLabel(label, providersBackstage));

  const pField = AlloyFormField.parts().field({
    // TODO: Alloy should not allow dom changing of an HTML select!
    dom: {  },
    selectAttributes: {
      size: spec.size
    },
    options: translatedOptions,
    factory: AlloyHtmlSelect,
    selectBehaviours: Behaviour.derive([
      Tabstopping.config({ }),
      AddEventsBehaviour.config('selectbox-change', [
        AlloyEvents.run(NativeEvents.change(), (component, _) => {
          AlloyTriggers.emitWith(component, formChangeEvent, { name: spec.name } );
        })
      ])
    ])
  });

  const chevron = spec.size > 1 ? Option.none() :
    Option.some({
        dom: {
          tag: 'div',
          classes: ['tox-selectfield__icon-js'],
          innerHtml: Icons.get('chevron-down', providersBackstage.icons)
        }
      });

  const selectWrap: SimpleSpec = {
    dom: {
      tag: 'div',
      classes: ['tox-selectfield']
    },
    components: Arr.flatten([[pField], chevron.toArray()])
  };

  return AlloyFormField.sketch({
    dom: {
      tag: 'div',
      classes: ['tox-form__group']
    },
    components: Arr.flatten<AlloySpec>([pLabel.toArray(), [selectWrap]])
  });
};

export const renderAutocomplete = (spec: AutocompleteGoo, backstage: UiFactoryBackstage): SketchSpec => {
  const pLabel = renderLabel(spec.label.getOr('?'), backstage.shared.providers);

  const pField = AlloyFormField.parts().field({
    factory: Typeahead,
    dismissOnBlur: false,
    inputClasses: [ 'tox-textfield' ],
    minChars: 1,
    fetch: (input) => {
      const value = Representing.getValue(input);
      const items = spec.getItems(value);
      const tdata = NestedMenus.build(items, ItemResponse.BUBBLE_TO_SANDBOX, backstage);
      return Future.pure(tdata);
    },

    markers: {
      // FIX:
      openClass: 'dog'
    },

    lazySink: backstage.shared.getSink,
    parts : {
      menu: MenuParts.part(false, 1, 'normal')
    }
  });

  return renderFormField(Option.some(pLabel), pField);
};

 AlloyEvents.run<ColorSwatchChangeEvent>(colorSwatchChangeEvent, (comp, se) => {
   FormField.getField(comp).each((field) => {
     Representing.setValue(field, se.event().value());
     // Focus the field now that we've set its value
     Composing.getCurrent(comp).each(Focusing.focus);
   });
 }),

const renderLabel = (label: string, providersBackstage: UiFactoryBackstageProviders): AlloySpec => {
  return AlloyFormField.parts().label({
    dom: {
      tag: 'label',
      classes: ['tox-label'],
      innerHtml: providersBackstage.translate(label)
    }
  });
};

 const getFieldPart = (isField1) => AlloyFormField.parts().field({
   factory: AlloyInput,
   inputClasses: ['tox-textfield'],
   inputBehaviours: Behaviour.derive([
     Tabstopping.config({}),
     AddEventsBehaviour.config('size-input-events', [
       AlloyEvents.run(NativeEvents.focusin(), function (component, simulatedEvent) {
         AlloyTriggers.emitWith(component, ratioEvent, { isField1 });
       }),
       AlloyEvents.run(NativeEvents.change(), function (component, simulatedEvent) {
         AlloyTriggers.emitWith(component, formChangeEvent, { name: spec.name });
       })
     ])
   ]),
   selectOnFocus: false
 });

export const renderListbox = (spec: ListboxFoo, providersBackstage: UiFactoryBackstageProviders): SketchSpec => {
  const pLabel = renderLabel(spec.label, providersBackstage);

  const pField = AlloyFormField.parts().field({
    factory: HtmlSelect,
    dom: {
      classes: [ 'mce-select-field' ]
    },
    selectBehaviours: Behaviour.derive([
      Tabstopping.config({ })
    ]),
    options: spec.values,
    // FIX: Don't use undefined here.
    data: spec.initialValue.getOr(undefined)
  });

  return renderFormField(Option.some(pLabel), pField);
};

const renderIFrame = (spec: Types.Iframe.Iframe, providersBackstage: UiFactoryBackstageProviders) => {
  const isSandbox = platformNeedsSandboxing && spec.sandboxed;

  const attributes = {
    ...spec.label.map<{ title?: string }>((title) => ({title})).getOr({}),
    ...isSandbox ? { sandbox : 'allow-scripts allow-same-origin' } : { }
  };

  const sourcing = getDynamicSource(isSandbox);

  const pLabel = spec.label.map((label) => renderLabel(label, providersBackstage));

  const factory = (newSpec: { uid: string }) => {
    return NavigableObject.craft(
      {
        // We need to use the part uid or the label and field won't be linked with ARIA
        uid: newSpec.uid,
        dom: {
          tag: 'iframe',
          attributes
        },
        behaviours: Behaviour.derive([
          Tabstopping.config({ }),
          Focusing.config({ }),
          RepresentingConfigs.withComp(Option.none(), sourcing.getValue, sourcing.setValue)
        ])
      }
    );
  };

  // Note, it's not going to handle escape at this point.
  const pField = FormField.parts().field({
    factory: { sketch: factory }
  });

  return renderFormFieldWith(pLabel, pField, ['tox-form__group--stretched']);
};

//.........这里部分代码省略.........
  const onSelect = (component, simulatedEvent) => {
    const files = simulatedEvent.event().raw().target.files;
    handleFiles(component, files);
  };

  const handleFiles = (component, files: FileList) => {
    Representing.setValue(component, filterByExtension(files));
    AlloyTriggers.emitWith(component, formChangeEvent, { name: spec.name });
  };

  const memInput = Memento.record(
    {
      dom: {
        tag: 'input',
        attributes: {
          type: 'file',
          accept: 'image/*'
        },
        styles: {
          display: 'none'
        }
      },
      behaviours: Behaviour.derive([
        AddEventsBehaviour.config('input-file-events', [
          AlloyEvents.cutter(SystemEvents.tapOrClick())
        ])
      ])
    }
  );

  const renderField = (s) => {
    return {
      uid: s.uid,
      dom: {
        tag: 'div',
        classes: [ 'tox-dropzone-container' ]
      },
      behaviours: Behaviour.derive([
        RepresentingConfigs.memory([ ]),
        ComposingConfigs.self(),
        Disabling.config({}),
        Toggling.config({
          toggleClass: 'dragenter',
          toggleOnExecute: false
        }),
        AddEventsBehaviour.config('dropzone-events', [
          AlloyEvents.run('dragenter', sequence([ stopper, Toggling.toggle ])),
          AlloyEvents.run('dragleave', sequence([ stopper, Toggling.toggle ])),
          AlloyEvents.run('dragover', stopper),
          AlloyEvents.run('drop', sequence([ stopper, onDrop ])),
          AlloyEvents.run(NativeEvents.change(), onSelect)
        ]),
      ]),
      components: [
        {
          dom: {
            tag: 'div',
            classes: [ 'tox-dropzone' ],
            styles: {}
          },
          components: [
            {
              dom: {
                tag: 'p',
                innerHtml: providersBackstage.translate('Drop an image here')
              }
            },
            Button.sketch({
              dom: {
                tag: 'button',
                innerHtml: providersBackstage.translate('Browse for an image'),
                styles: {
                  position: 'relative'
                },
                classes: [ 'tox-button', 'tox-button--secondary']
              },
              components: [
                memInput.asSpec()
              ],
              action: (comp) => {
                const inputComp = memInput.get(comp);
                inputComp.element().dom().click();
              },
              buttonBehaviours: Behaviour.derive([
                Tabstopping.config({ })
              ])
            })
          ]
        }
      ]
    };
  };

  const pLabel = spec.label.map((label) => renderLabel(label, providersBackstage));
  const pField = AlloyFormField.parts().field({
    factory: { sketch: renderField }
  });

  return renderFormFieldWith(pLabel, pField, ['tox-form__group--stretched']);
};

export const renderCollection = (spec: Types.Collection.Collection, providersBackstage: UiFactoryBackstageProviders): SketchSpec => {
  // DUPE with TextField.
  const pLabel = spec.label.map((label) => renderLabel(label, providersBackstage));

  const runOnItem = (f: (c: AlloyComponent, tgt: Element, itemValue: string) => void) => <T extends EventFormat>(comp: AlloyComponent, se: SimulatedEvent<T>) => {
    SelectorFind.closest(se.event().target(), '[data-collection-item-value]').each((target) => {
      f(comp, target, Attr.get(target, 'data-collection-item-value'));
    });
  };

  const escapeAttribute = (ch) => {
    if (ch === '"') { return '&quot;'; }
    return ch;
  };

  const setContents = (comp, items) => {
    const htmlLines = Arr.map(items, (item) => {
      const textContent = spec.columns === 1 ? `<div class="tox-collection__item-label">${item.text}</div>` : '';

      const iconContent = `<div class="tox-collection__item-icon">${item.icon}</div>`;

      // Replacing the hyphens and underscores in collection items with spaces
      // to ensure the screen readers pronounce the words correctly.
      // This is only for aria purposes. Emoticon and Special Character names will still use _ and - for autocompletion.
      const mapItemName = {
        '_': ' ',
        ' - ': ' ',
        '-': ' '
      };

      // Title attribute is added here to provide tooltips which might be helpful to sighted users.
      // Using aria-label here overrides the Apple description of emojis and special characters in Mac/ MS description in Windows.
      // But if only the title attribute is used instead, the names are read out twice. i.e., the description followed by the item.text.
      const ariaLabel = item.text.replace(/\_| \- |\-/g, (match) => {
        return mapItemName[match];
      });
      return `<div class="tox-collection__item" tabindex="-1" data-collection-item-value="${escapeAttribute(item.value)}" title="${ariaLabel}" aria-label="${ariaLabel}">${iconContent}${textContent}</div>`;
    });

    const chunks = spec.columns > 1 && spec.columns !== 'auto' ? Arr.chunk(htmlLines, spec.columns) : [ htmlLines ];
    const html = Arr.map(chunks, (ch) => {
      return `<div class="tox-collection__group">${ch.join('')}</div>`;
    });

    Html.set(comp.element(), html.join(''));
  };

  const collectionEvents = [
    AlloyEvents.run<SugarEvent>(NativeEvents.mouseover(), runOnItem((comp, tgt) => {
      Focus.focus(tgt);
    })),
    AlloyEvents.run<SugarEvent>(SystemEvents.tapOrClick(), runOnItem((comp, tgt, itemValue) => {
      AlloyTriggers.emitWith(comp, formActionEvent, {
        name: spec.name,
        value: itemValue
      });
    })),
    AlloyEvents.run(NativeEvents.focusin(), runOnItem((comp, tgt, itemValue) => {
      SelectorFind.descendant(comp.element(), '.' + ItemClasses.activeClass).each((currentActive) => {
        Class.remove(currentActive, ItemClasses.activeClass);
      });
      Class.add(tgt, ItemClasses.activeClass);
    })),
    AlloyEvents.run(NativeEvents.focusout(), runOnItem((comp, tgt, itemValue) => {
      SelectorFind.descendant(comp.element(), '.' + ItemClasses.activeClass).each((currentActive) => {
        Class.remove(currentActive, ItemClasses.activeClass);
      });
    })),
    AlloyEvents.runOnExecute(runOnItem((comp, tgt, itemValue) => {
      AlloyTriggers.emitWith(comp, formActionEvent, {
        name: spec.name,
        value: itemValue
      });
    }))
  ];

  const pField = AlloyFormField.parts().field({
    dom: {
      tag: 'div',
      // FIX: Read from columns
      classes: [ 'tox-collection' ].concat(spec.columns !== 1 ? [ 'tox-collection--grid' ] : [ 'tox-collection--list' ])
    },
    components: [ ],
    factory: { sketch: Fun.identity },
    behaviours: Behaviour.derive([
      Replacing.config({ }),
      Representing.config({
        store: {
          mode: 'memory',
          initialValue: [ ]
        },
        onSetValue: (comp, items) => {
          setContents(comp, items);
          if (spec.columns === 'auto') {
            detectSize(comp, 5, 'tox-collection__item').each(({ numRows, numColumns }) => {
              Keying.setGridSize(comp, numRows, numColumns);
            });
          }

          AlloyTriggers.emit(comp, formResizeEvent);
//.........这里部分代码省略.........