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How to use scrollToIndex method in root

Best JavaScript code snippet using root

updateScrollIndexHelper.jest.js

Source:updateScrollIndexHelper.jest.js

1import updateScrollIndexHelper from './updateScrollIndexHelper';2import CellSizeAndPositionManager from './CellSizeAndPositionManager';3// Default cell sizes and offsets for use in shared tests4export function getCellSizeAndPositionManager({5  cellCount = CELL_SIZES.length,6  estimatedCellSize = 10,7}) {8  return new CellSizeAndPositionManager({9    cellCount,10    cellSizeGetter: ({index}) => CELL_SIZES[index % CELL_SIZES.length],11    estimatedCellSize,12  });13}14const CELL_SIZES = [15  10, // 0: 0..0 (min)16  20, // 1: 0..1017  15, // 2: 0..3018  10, // 3: 5..4519  15, // 4: 20..5520  30, // 5: 50..7021  20, // 6: 70..10022  10, // 7: 80..11023  30, //  8: 110..110 (max)24];25describe('updateScrollIndexHelper', () => {26  function helper({27    cellCount = undefined,28    cellSizeAndPositionManager,29    cellSize = 10,30    previousCellsCount = undefined,31    previousCellSize = 10,32    previousScrollToAlignment = 'auto',33    previousScrollToIndex,34    previousSize = 50,35    scrollOffset = 0,36    scrollToAlignment = 'auto',37    scrollToIndex,38    size = 50,39  } = {}) {40    cellSizeAndPositionManager =41      cellSizeAndPositionManager || getCellSizeAndPositionManager({cellCount});42    cellCount =43      cellCount === undefined44        ? cellSizeAndPositionManager.getCellCount()45        : cellCount;46    previousCellsCount =47      previousCellsCount === undefined ? cellCount : previousCellsCount;48    let updateScrollIndexCallbackCalled = false;49    function updateScrollIndexCallback() {50      updateScrollIndexCallbackCalled = true;51    }52    updateScrollIndexHelper({53      cellCount,54      cellSizeAndPositionManager,55      cellSize,56      previousCellsCount,57      previousCellSize,58      previousScrollToAlignment,59      previousScrollToIndex,60      previousSize,61      scrollOffset,62      scrollToAlignment,63      scrollToIndex,64      size,65      updateScrollIndexCallback,66    });67    return updateScrollIndexCallbackCalled;68  }69  it('should not call :updateScrollIndexCallback if there is no :scrollToIndex and size has not changed', () => {70    expect(helper()).toEqual(false);71  });72  it('should not call :updateScrollIndexCallback if an invalid :scrollToIndex has been specified', () => {73    expect(74      helper({75        size: 100,76        previousSize: 50,77        scrollToIndex: -1,78      }),79    ).toEqual(false);80  });81  it('should call :updateScrollIndexCallback if there is a :scrollToIndex and :size has changed', () => {82    expect(83      helper({84        cellCount: 100,85        size: 100,86        previousSize: 50,87        scrollToIndex: 10,88      }),89    ).toEqual(true);90  });91  it('should call :updateScrollIndexCallback if there is a :scrollToIndex and :cellSize has changed', () => {92    expect(93      helper({94        cellCount: 100,95        cellSize: 15,96        previousCellSize: 20,97        scrollToIndex: 10,98      }),99    ).toEqual(true);100  });101  it('should call :updateScrollIndexCallback if previous :scrollToIndex has changed', () => {102    expect(103      helper({104        cellCount: 15,105        previousScrollToIndex: 20,106        scrollToIndex: 10,107      }),108    ).toEqual(true);109  });110  it('should call :updateScrollIndexCallback if :cellCount has been reduced past the current scroll offset', () => {111    expect(112      helper({113        previousCellsCount: 100,114        scrollOffset: 510,115      }),116    ).toEqual(true);117  });118  it('should call :updateScrollIndexCallback if there is no :scrollToIndex but :size has been reduced', () => {119    expect(120      helper({121        previousSize: 100,122        scrollOffset: 510,123        size: 50,124      }),125    ).toEqual(true);126  });127  it('should not measure rows if :size or :cellCount have been reduced but only use already measured (or estimated) total size', () => {128    const cellSizeAndPositionManager = {129      getCellCount: () => CELL_SIZES.length,130      getTotalSize: () => 560,131    };132    expect(133      helper({134        cellSizeAndPositionManager,135        previousSize: 100,136        scrollOffset: 510,137        size: 50,138      }),139    ).toEqual(false);140  });141  it('should not call :updateScrollIndexCallback if there is no :scrollToIndex but :cellCount has been increased', () => {142    expect(143      helper({144        cellCount: 100,145        previousCellsCount: 50,146      }),147    ).toEqual(false);148  });149  it('should not call :updateScrollIndexCallback if there is no :scrollToIndex but :size has been increased', () => {150    expect(151      helper({152        previousSize: 50,153        size: 100,154      }),155    ).toEqual(false);156  });157  it('should call :updateScrollIndexCallback if :scrollToAlignment has changed', () => {158    expect(159      helper({160        previousScrollToAlignment: 'start',161        scrollToAlignment: 'end',162        scrollToIndex: 5,163      }),164    ).toEqual(true);165  });166  it('should not call :updateScrollIndexCallback if :scrollToAlignment has changed but there is no :scrollToIndex', () => {167    expect(168      helper({169        previousScrollToAlignment: 'start',170        scrollToAlignment: 'end',171      }),172    ).toEqual(false);173  });...

utils.js

Source:utils.js

1import { findIndex } from 'lodash';2export const3  isDef = thing => thing !== undefined,4  noop = _ => {},5  addToSelection = ({ selection, id, toHead = false }) => selection.indexOf(id) === -1 ?6    toHead ?7      [id, ...selection] :8      [...selection, id] :9    selection,10  removeFromSelection = ({ selection, id }) => selection.filter(sid => sid !== id),11  // TODO: when needed, refactor utils to accept idPropName argument12  // which defined unique key (currently only 'id' is supported)13  selectRange = ({ items, fromId, toId }) => {14    const fromIdIndex = findIndex(items, ({ id }) => id === fromId);15    const toIdIndex = findIndex(items, ({ id }) => id === toId);16    const selectionDirection = toIdIndex > fromIdIndex ? 1 : -1;17    const itemsSlice = selectionDirection === 1 ?18      items.slice(fromIdIndex, toIdIndex + 1) :19      items.slice(toIdIndex, fromIdIndex + 1);20    const selection = itemsSlice.map(({ id }) => id)21    return selection22  },23  selectNext = ({ items, lastSelected: currentId }) => {24    const currentIndex = findIndex(items, ({ id }) => id === currentId);25    const nextIndex = currentIndex < items.length - 1 ? currentIndex + 1 : currentIndex;26    const nextId = items[nextIndex].id;27    return {28      selection: [nextId],29      scrollToIndex: nextIndex30    };31  },32  selectPrev = ({ items, lastSelected: currentId }) => {33    const currentIndex = findIndex(items, ({ id }) => id === currentId);34    if (currentIndex <= -1) {35      // Fix for fast selection updates36      return {37        scrollToIndex: 038      }39    }40    const prevIndex = currentIndex === 0 ? currentIndex : currentIndex - 1;41    const prevId = items[prevIndex].id;42    return {43      selection: [prevId],44      scrollToIndex: prevIndex45    }46  },47  addNextToSelection = ({ selection, items, lastSelected }) => {48    const nextSelectionData = selectNext({ items, lastSelected });49    return {50      selection: addToSelection({ selection, id: nextSelectionData.selection[0] }),51      scrollToIndex: nextSelectionData.scrollToIndex52    }53  },54  addPrevToSelection = ({ selection, items, lastSelected }) => {55    const prevSelectionData = selectPrev({ items, lastSelected });56    return {57      selection: addToSelection({ selection, id: prevSelectionData.selection[0], toHead: true }),58      scrollToIndex: prevSelectionData.scrollToIndex59    }60  },61  removeLastFromSelection = ({ selection, items }) => {62    if (selection.length > 1) {63      const nextSelection = selection.slice(0, selection.length - 1);64      return {65        selection: nextSelection,66        scrollToIndex: findIndex(items, ({ id }) => id === nextSelection[nextSelection.length - 1])67      }68    } else {69      return {70        selection,71        scrollToIndex: findIndex(items, ({ id }) => id === selection[0])72      }73    }74  },75  removeFirstFromSelection = ({ selection, items }) => {76    if (selection.length > 1) {77      const nextSelection = selection.slice(1);78      return {79        selection: nextSelection,80        scrollToIndex: findIndex(items, ({ id }) => id === nextSelection[0])81      }82    } else {83      return {84        selection,85        scrollToIndex: findIndex(items, ({ id }) => id === selection[0])86      }87    }88  },89  selectFirstItem = ({ items }) => ({90    selection: items.length ? [items[0].id] : [],91    scrollToIndex: items.length ? 0 : null92  }),93  selectLastItem = ({ items }) => ({94    selection: items.length ? [items[items.length - 1].id] : [],95    scrollToIndex: items.length ? items.length - 1 : null...

Using AI Code Generation

1var rootview = app.getRootView();2rootview.scrollToIndex(1);3rootview.scrollToIndex(2);4rootview.scrollToIndex(3);5rootview.scrollToIndex(4);6rootview.scrollToIndex(5);7rootview.scrollToIndex(6);8rootview.scrollToIndex(7);9rootview.scrollToIndex(8);10rootview.scrollToIndex(9);11rootview.scrollToIndex(10);12rootview.scrollToIndex(11);13rootview.scrollToIndex(12);14rootview.scrollToIndex(13);15rootview.scrollToIndex(14);16rootview.scrollToIndex(15);17rootview.scrollToIndex(16);18rootview.scrollToIndex(17);19rootview.scrollToIndex(18);20rootview.scrollToIndex(19);21rootview.scrollToIndex(20);22rootview.scrollToIndex(21);23rootview.scrollToIndex(22);24rootview.scrollToIndex(23);25rootview.scrollToIndex(24);26rootview.scrollToIndex(25);27rootview.scrollToIndex(26);28rootview.scrollToIndex(27);29rootview.scrollToIndex(28);30rootview.scrollToIndex(29);31rootview.scrollToIndex(30);32rootview.scrollToIndex(31);33rootview.scrollToIndex(32);34rootview.scrollToIndex(33);35rootview.scrollToIndex(34);36rootview.scrollToIndex(35);37rootview.scrollToIndex(36);38rootview.scrollToIndex(37);39rootview.scrollToIndex(38);40rootview.scrollToIndex(39);41rootview.scrollToIndex(40);42rootview.scrollToIndex(41);43rootview.scrollToIndex(42);44rootview.scrollToIndex(43);45rootview.scrollToIndex(44);46rootview.scrollToIndex(45);47rootview.scrollToIndex(46);48rootview.scrollToIndex(47);49rootview.scrollToIndex(48);50rootview.scrollToIndex(49);51rootview.scrollToIndex(50);52rootview.scrollToIndex(51);53rootview.scrollToIndex(52);54rootview.scrollToIndex(53);55rootview.scrollToIndex(54);56rootview.scrollToIndex(55);57rootview.scrollToIndex(56);58rootview.scrollToIndex(57);59rootview.scrollToIndex(58);60rootview.scrollToIndex(59);61rootview.scrollToIndex(60);62rootview.scrollToIndex(61);63rootview.scrollToIndex(62);64rootview.scrollToIndex(63);65rootview.scrollToIndex(64);66rootview.scrollToIndex(65);67rootview.scrollToIndex(66);68rootview.scrollToIndex(67);69rootview.scrollToIndex(68);70rootview.scrollToIndex(69);71rootview.scrollToIndex(70

Using AI Code Generation

1var win = Ti.UI.createWindow({2});3var table = Ti.UI.createTableView({4    data: [{title: 'row1'}, {title: 'row2'}, {title: 'row3'}, {title: 'row4'}, {title: 'row5'}, {title: 'row6'}, {title: 'row7'}, {title: 'row8'}, {title: 'row9'}, {title: 'row10'}]5});6win.add(table);7win.open();8table.scrollToIndex(4);

Using AI Code Generation

1var win = Ti.UI.createWindow({2});3var view = Ti.UI.createView({4});5var view2 = Ti.UI.createView({6});7view2.addEventListener('click', function () {8    view.scrollToIndex(0);9});10view.add(view2);11win.add(view);12win.open();

Using AI Code Generation

1root.scrollToIndex(0, false);2root.scrollToIndex(1, false);3root.scrollToIndex(2, false);4root.scrollToIndex(3, false);5child.scrollToIndex(0, false);6child.scrollToIndex(1, false);7child.scrollToIndex(2, false);8child.scrollToIndex(3, false);9grandchild.scrollToIndex(0, false);10grandchild.scrollToIndex(1, false);11grandchild.scrollToIndex(2, false);12grandchild.scrollToIndex(3, false);13greatgrandchild.scrollToIndex(0, false);14greatgrandchild.scrollToIndex(1, false);15greatgrandchild.scrollToIndex(2, false);16greatgrandchild.scrollToIndex(3, false);17greatgreatgrandchild.scrollToIndex(0, false);18greatgreatgrandchild.scrollToIndex(1, false);19greatgreatgrandchild.scrollToIndex(2, false);20greatgreatgrandchild.scrollToIndex(3, false);21greatgreatgreatgrandchild.scrollToIndex(0, false);22greatgreatgreatgrandchild.scrollToIndex(1, false);23greatgreatgreatgrandchild.scrollToIndex(2, false);24greatgreatgreatgrandchild.scrollToIndex(3, false);25greatgreatgreatgreatgrandchild.scrollToIndex(0, false);26greatgreatgreatgreatgrandchild.scrollToIndex(1, false);27greatgreatgreatgreatgrandchild.scrollToIndex(2, false);28greatgreatgreatgreatgrandchild.scrollToIndex(3, false);29greatgreatgreatgreatgreatgrandchild.scrollToIndex(0, false);30greatgreatgreatgreatgreatgrandchild.scrollToIndex(1, false);31greatgreatgreatgreatgreatgrandchild.scrollToIndex(2, false);32greatgreatgreatgreatgreatgrandchild.scrollToIndex(3, false);

Using AI Code Generation

1var root = this.getView();2root.scrollToIndex(0);3var child = this.getView().byId("myChildView");4child.scrollToIndex(0);5var root = this.getView();6root.scrollToIndex(0);7var child = this.getView().byId("myChildView");8child.scrollToIndex(0);9var root = this.getView();10root.scrollToIndex(0);11var child = this.getView().byId("myChildView");12child.scrollToIndex(0);13var root = this.getView();14root.scrollToIndex(0);15var child = this.getView().byId("myChildView");16child.scrollToIndex(0);

Using AI Code Generation

1this._root.scrollToIndex({animated: true, index: 3});2this._root.scrollToIndex({animated: true, index: 3, viewPosition: 0.5});3this._root.scrollToIndex({animated: true, index: 3, viewPosition: 0.5, viewOffset: 20});4this._root.scrollToItem({animated: true, item: {name: 'item3'}});5this._root.scrollToItem({animated: true, item: {name: 'item3'}, viewPosition: 0.5});6this._root.scrollToItem({animated: true, item: {name: 'item3'}, viewPosition: 0.5, viewOffset: 20});7this._root.scrollToOffset({animated: true, offset: 200});8this._root.scrollToOffset({animated: true, offset: 200, viewOffset: 20});9this._root.scrollToEnd({animated: true});10this._root.scrollToEnd({animated: true, viewOffset: 20});11this._root.scrollBy({animated: true, offset: 200});12this._root.scrollBy({animated: true, offset: 200, viewOffset: 20});13this._root.scrollToStart({animated: true});14this._root.scrollToStart({animated: true, viewOffset: 20});15this._root.scrollToIndex({animated: true, index: 3});16this._root.scrollToIndex({

Using AI Code Generation

1var root = this.$refs.root;2root.scrollToIndex(2);3export default {4  methods: {5    scrollToIndex(index) {6      this.$refs.list.scrollToIndex(index);7    }8  }9};10export default {11  methods: {12    scrollToIndex(index) {13      this.$refs.items[index].scrollIntoView();14    }15  }16};17export default {18};

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