tab.js 16 KB

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  1. "use strict";
  2. Object.defineProperty(exports, "__esModule", { value: true });
  3. var props_1 = require("./props");
  4. var unit_1 = require("../../utils/tool/unit");
  5. Component({
  6. properties: props_1.default,
  7. options: {
  8. pureDataPattern: /^_/,
  9. multipleSlots: true,
  10. },
  11. data: {
  12. number: 0,
  13. sValue: 0,
  14. width: 0,
  15. offsetLefts: undefined,
  16. allWidth: 750,
  17. lineWidth: 54,
  18. avgWidth: 0,
  19. opacity: 0,
  20. sTabs: [],
  21. headerComponents: {
  22. default: "default",
  23. line: "line",
  24. scrollLine: "scrollLine"
  25. }
  26. },
  27. observers: {
  28. value: function (value) {
  29. if (this.data.sValue !== value) {
  30. return this.switchTab(value, true);
  31. }
  32. }
  33. },
  34. methods: {
  35. handleTabs: function (tab) {
  36. var _this = this;
  37. var select;
  38. if (tab[this.data.value]) {
  39. select = this.data.value;
  40. }
  41. else if (tab[this.data.defaultIndex]) {
  42. select = this.data.defaultIndex;
  43. }
  44. else {
  45. select = 0;
  46. }
  47. tab = tab.map(function (item, index) {
  48. return {
  49. loading: select === index,
  50. label: item.label || item,
  51. slot: item.slot || 'tab-' + index
  52. };
  53. });
  54. if (this.data.first) {
  55. setTimeout(function () {
  56. _this.triggerEvent('change', {
  57. item: _this.data.tabs[select],
  58. index: select,
  59. loading: true
  60. });
  61. }, 0);
  62. }
  63. this.handleTabWidth(tab.length);
  64. return this.setData({
  65. sTabs: tab,
  66. sValue: select,
  67. opacity: 1
  68. });
  69. },
  70. handleTabWidth: function (count) {
  71. var _this = this;
  72. if (this.data.compact) {
  73. return wx.nextTick(function () {
  74. _this.createSelectorQuery().selectAll('.tab-header-item').boundingClientRect().exec(function (res) {
  75. var data = res[0];
  76. if (data) {
  77. var offsetLefts_1 = [];
  78. var agreement_1 = true;
  79. var width_1 = 0;
  80. var offsetLeft_1 = 0;
  81. data.map(function (item, index) {
  82. item.width = unit_1.unitPxToRPX(item.width);
  83. if (index === 0) {
  84. width_1 = item.width;
  85. }
  86. else if (agreement_1 && width_1 !== item.width) {
  87. agreement_1 = false;
  88. }
  89. offsetLeft_1 = index * (item.width + _this.data.margin);
  90. offsetLefts_1.push(offsetLeft_1 + (item.width - _this.data.lineWidth) / 2);
  91. });
  92. return _this.setData({
  93. offsetLefts: offsetLefts_1
  94. });
  95. }
  96. });
  97. });
  98. }
  99. else {
  100. var width = this.data.allWidth / count;
  101. return this.setData({
  102. width: width,
  103. avgWidth: width,
  104. });
  105. }
  106. },
  107. switchTab: function (e, change) {
  108. if (change === void 0) { change = true; }
  109. var index = typeof e === 'object' ? e.currentTarget.dataset.index : e;
  110. if (this.data.sValue !== index) {
  111. if (change) {
  112. this.triggerEvent('change', {
  113. index: index,
  114. item: this.data.sTabs[index],
  115. loading: this.data.sTabs[index] ? !this.data.sTabs[index].loading : true
  116. });
  117. }
  118. var draw = {
  119. sValue: index
  120. };
  121. if (this.data.sTabs[index]) {
  122. if (!this.data.sTabs[index].loading) {
  123. draw['sTabs[' + index + '].loading'] = true;
  124. }
  125. }
  126. return this.setData(draw);
  127. }
  128. },
  129. change: function (e) {
  130. return this.switchTab(e.detail.current, true);
  131. },
  132. changeSwitchTab: function (e) {
  133. return this.switchTab(e.detail.index, true);
  134. }
  135. },
  136. lifetimes: {
  137. ready: function () {
  138. return this.handleTabs(this.data.tabs);
  139. }
  140. }
  141. });
  142. //# 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props from './props';\n\nimport {unitPxToRPX} from '../../utils/tool/unit';\n\nComponent({\n\n\tproperties:props,\n\n\toptions: {\n\t\tpureDataPattern: /^_/, // 指定所有 _ 开头的数据字段为纯数据字段\n\t\tmultipleSlots:true,  // 允许组件内 支持多插槽\n\t},\n\n\n\tdata:{\n\t\tnumber:0,\n\n\t\tsValue:0,   // 选中的值\n\n\t\twidth: 0,  // 每一个item 的宽度 left\n\n\t\toffsetLefts:undefined, // 每一个 item 的 宽度\n\n\t\tallWidth: 750,\n\n\t\tlineWidth: 54,\n\n\t\tavgWidth: 0,\n\n\t\topacity:0,\n\n\t\tsTabs:[],\n\n\t\theaderComponents:{\n\t\t\tdefault: LibTabHeaderComponent.default,\n\t\t\tline: LibTabHeaderComponent.line,\n\t\t\tscrollLine: LibTabHeaderComponent.scrollLine\n\t\t}\n\t},\n\n\tobservers:{\n\t\tvalue:function (value) {\n\t\t\tif (this.data.sValue !== value) {\n\t\t\t\treturn this.switchTab(value,true);\n\t\t\t}\n\t\t}\n\t},\n\n\tmethods:{\n\n\t\t// 处理 初始化选中 tabs\n\t\thandleTabs:function (this:any,tab) {\n\t\t\tlet select;\n\t\t\tif (tab[this.data.value]) {\n\t\t\t\tselect = this.data.value;\n\t\t\t} else if (tab[this.data.defaultIndex]) {\n\t\t\t\tselect = this.data.defaultIndex;\n\t\t\t} else {\n\t\t\t\tselect = 0;\n\t\t\t}\n\n\t\t\ttab = tab.map((item,index)=>{\n\n\t\t\t\treturn {\n\t\t\t\t\tloading: select === index,\n\t\t\t\t\tlabel: item.label || item,\n\t\t\t\t\tslot: item.slot || 'tab-'+index\n\t\t\t\t}\n\n\t\t\t});\n\n\t\t\tif (this.data.first){\n\t\t\t\tsetTimeout(()=>{\n\t\t\t\t\tthis.triggerEvent('change',{\n\t\t\t\t\t\titem: this.data.tabs[select],\n\t\t\t\t\t\tindex: select,\n\t\t\t\t\t\tloading:true\n\t\t\t\t\t});\n\t\t\t\t},0);\n\t\t\t}\n\n\t\t\t// 处理tab的宽度问题\n\t\t\tthis.handleTabWidth(tab.length);\n\n\t\t\treturn this.setData({\n\t\t\t\tsTabs:tab,\n\t\t\t\tsValue: select,\n\t\t\t\topacity:1\n\t\t\t});\n\n\n\t\t},\n\n\t\t// 处理 宽度\n\t\thandleTabWidth(count){\n\n\t\t\tif (this.data.compact) {\n\n\t\t\t\treturn  wx.nextTick(()=>{\n\t\t\t\t\tthis.createSelectorQuery().selectAll('.tab-header-item').boundingClientRect().exec( (res)=> {\n\t\t\t\t\t\tlet data = res[0];\n\t\t\t\t\t\tif (data) {\n\n\t\t\t\t\t\t\t// 当前的宽度\n\t\t\t\t\t\t\tlet offsetLefts = [];\n\t\t\t\t\t\t\t// 是否一致\n\t\t\t\t\t\t\tlet agreement = true;\n\t\t\t\t\t\t\t// 当前鉴定宽度\n\t\t\t\t\t\t\tlet width = 0;\n\t\t\t\t\t\t\t// 左侧间距\n\t\t\t\t\t\t\tlet offsetLeft = 0;\n\n\t\t\t\t\t\t\tdata.map((item,index)=>{\n\n\t\t\t\t\t\t\t\titem.width = unitPxToRPX(item.width);\n\n\n\n\t\t\t\t\t\t\t\tif (index === 0) {\n\t\t\t\t\t\t\t\t\twidth = item.width;\n\t\t\t\t\t\t\t\t} else if (agreement && width !== item.width) {\n\t\t\t\t\t\t\t\t\tagreement = false;\n\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\toffsetLeft =index *  (item.width + this.data.margin);\n\t\t\t\t\t\t\t\toffsetLefts.push(offsetLeft + (item.width - this.data.lineWidth)/2);\n\t\t\t\t\t\t\t});\n\n\t\t\t\t\t\t\treturn this.setData({\n\t\t\t\t\t\t\t\toffsetLefts\n\t\t\t\t\t\t\t});\n\n\t\t\t\t\t\t}\n\t\t\t\t\t});\n\t\t\t\t});\n\n\t\t\t} else {\n\n\t\t\t\tlet width = this.data.allWidth / count;\n\n\t\t\t\treturn this.setData({\n\t\t\t\t\twidth: width,\n\t\t\t\t\tavgWidth: width,\n\t\t\t\t});\n\t\t\t}\n\n\t\t},\n\n\t\t// 切换\n\t\tswitchTab:function (e,change =true) {\n\n\t\t\tlet index = typeof e==='object'?e.currentTarget.dataset.index:e;\n\n\t\t\tif (this.data.sValue !== index) {\n\n\t\t\t\tif (change) {\n\t\t\t\t\tthis.triggerEvent('change',{\n\t\t\t\t\t\tindex:index,\n\t\t\t\t\t\titem: this.data.sTabs[index],\n\t\t\t\t\t\tloading: this.data.sTabs[index]?!this.data.sTabs[index].loading:true\n\t\t\t\t\t});\n\t\t\t\t}\n\n\t\t\t\tlet draw = {\n\t\t\t\t\tsValue:index\n\t\t\t\t};\n\n\t\t\t\tif (this.data.sTabs[index]){\n\t\t\t\t\tif (!this.data.sTabs[index].loading) {\n\t\t\t\t\t\tdraw['sTabs['+index+'].loading'] = true;\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\treturn this.setData(draw);\n\n\t\t\t}\n\n\t\t},\n\n\t\t// swiper 更换\n\t\tchange:function (e) {\n\n\t\t\treturn this.switchTab(e.detail.current,true);\n\t\t},\n\n\t\tchangeSwitchTab(e){\n\t\t\treturn this.switchTab(e.detail.index,true);\n\t\t}\n\n\t},\n\n\tlifetimes:{\n\t\tready() {\n\t\t\treturn this.handleTabs(this.data.tabs);\n\t\t}\n\t}\n\n\n});\n"]}