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@ -1,47 +1,47 @@
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<template> |
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<view class="u-textarea" :class="textareaClass" :style="[textareaStyle]"> |
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<textarea |
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class="u-textarea__field" |
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:value="innerValue" |
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:style="{ height: $u.addUnit(height) }" |
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:placeholder="placeholder" |
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:placeholder-style="$u.addStyle(placeholderStyle, 'string')" |
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:placeholder-class="placeholderClass" |
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:disabled="disabled" |
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:focus="focus" |
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:autoHeight="autoHeight" |
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:fixed="fixed" |
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:cursorSpacing="cursorSpacing" |
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:cursor="cursor" |
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:showConfirmBar="showConfirmBar" |
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:selectionStart="selectionStart" |
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:selectionEnd="selectionEnd" |
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:adjustPosition="adjustPosition" |
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:disableDefaultPadding="disableDefaultPadding" |
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:holdKeyboard="holdKeyboard" |
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:maxlength="maxlength" |
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:confirmType="confirmType" |
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:ignoreCompositionEvent="ignoreCompositionEvent" |
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@focus="onFocus" |
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@blur="onBlur" |
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@linechange="onLinechange" |
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@input="onInput" |
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@confirm="onConfirm" |
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@keyboardheightchange="onKeyboardheightchange" |
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></textarea> |
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<text |
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class="u-textarea__count" |
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:style="{ |
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'background-color': disabled ? 'transparent' : '#fff', |
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}" |
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v-if="count" |
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>{{ innerValue.length }}/{{ maxlength }}</text |
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> |
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</view> |
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<view class="u-textarea" :class="textareaClass" :style="[textareaStyle]"> |
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<textarea |
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class="u-textarea__field" |
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:value="innerValue" |
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:placeholder="placeholder" |
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:placeholder-style="$u.addStyle(placeholderStyle, 'string')" |
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:placeholder-class="placeholderClass" |
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:disabled="disabled" |
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:focus="focus" |
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:autoHeight="autoHeight" |
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:fixed="fixed" |
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:cursorSpacing="cursorSpacing" |
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:cursor="cursor" |
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:showConfirmBar="showConfirmBar" |
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:selectionStart="selectionStart" |
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:selectionEnd="selectionEnd" |
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:adjustPosition="adjustPosition" |
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:disableDefaultPadding="disableDefaultPadding" |
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:holdKeyboard="holdKeyboard" |
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:maxlength="maxlength" |
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:confirmType="confirmType" |
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:ignoreCompositionEvent="ignoreCompositionEvent" |
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@focus="onFocus" |
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@blur="onBlur" |
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@linechange="onLinechange" |
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@input="onInput" |
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@confirm="onConfirm" |
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@keyboardheightchange="onKeyboardheightchange" |
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></textarea> |
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<text |
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class="u-textarea__count" |
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:style="{ |
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'background-color': disabled ? 'transparent' : '#fff' |
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}" |
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v-if="count" |
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> |
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{{ innerValue.length }}/{{ maxlength }} |
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</text> |
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</view> |
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</template> |
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<script> |
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import props from "./props.js"; |
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import props from './props.js' |
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/** |
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* Textarea 文本域 |
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* @description 文本域此组件满足了可能出现的表单信息补充，编辑等实际逻辑的功能，内置了字数校验等 |
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@ -80,160 +80,157 @@ import props from "./props.js";
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* @example <u--textarea v-model="value1" placeholder="请输入内容" ></u--textarea> |
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*/ |
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export default { |
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name: "u-textarea", |
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mixins: [uni.$u.mpMixin, uni.$u.mixin, props], |
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data() { |
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return { |
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// 输入框的值 |
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innerValue: "", |
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// 是否处于获得焦点状态 |
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focused: false, |
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// value是否第一次变化，在watch中，由于加入immediate属性，会在第一次触发，此时不应该认为value发生了变化 |
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firstChange: true, |
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// value绑定值的变化是由内部还是外部引起的 |
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changeFromInner: false, |
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// 过滤处理方法 |
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innerFormatter: value => value |
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} |
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}, |
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watch: { |
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value: { |
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immediate: true, |
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handler(newVal, oldVal) { |
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this.innerValue = newVal; |
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/* #ifdef H5 */ |
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// 在H5中，外部value变化后，修改input中的值，不会触发@input事件，此时手动调用值变化方法 |
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if ( |
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this.firstChange === false && |
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this.changeFromInner === false |
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) { |
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this.valueChange(); |
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} |
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/* #endif */ |
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this.firstChange = false; |
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// 重置changeFromInner的值为false，标识下一次引起默认为外部引起的 |
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this.changeFromInner = false; |
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}, |
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}, |
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}, |
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computed: { |
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// 组件的类名 |
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textareaClass() { |
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let classes = [], |
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{ border, disabled, shape } = this; |
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border === "surround" && |
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(classes = classes.concat(["u-border", "u-textarea--radius"])); |
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border === "bottom" && |
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(classes = classes.concat([ |
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"u-border-bottom", |
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"u-textarea--no-radius", |
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])); |
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disabled && classes.push("u-textarea--disabled"); |
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return classes.join(" "); |
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}, |
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// 组件的样式 |
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textareaStyle() { |
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const style = {}; |
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// #ifdef APP-NVUE |
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// 由于textarea在安卓nvue上的差异性，需要额外再调整其内边距 |
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if (uni.$u.os() === "android") { |
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style.paddingTop = "6px"; |
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style.paddingLeft = "9px"; |
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style.paddingBottom = "3px"; |
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style.paddingRight = "6px"; |
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} |
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// #endif |
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return uni.$u.deepMerge(style, uni.$u.addStyle(this.customStyle)); |
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}, |
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name: 'u-textarea', |
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mixins: [uni.$u.mpMixin, uni.$u.mixin, props], |
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data() { |
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return { |
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// 输入框的值 |
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innerValue: '', |
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// 是否处于获得焦点状态 |
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focused: false, |
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// value是否第一次变化，在watch中，由于加入immediate属性，会在第一次触发，此时不应该认为value发生了变化 |
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firstChange: true, |
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// value绑定值的变化是由内部还是外部引起的 |
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changeFromInner: false, |
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// 过滤处理方法 |
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innerFormatter: value => value |
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} |
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}, |
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watch: { |
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value: { |
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immediate: true, |
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handler(newVal, oldVal) { |
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this.innerValue = newVal |
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/* #ifdef H5 */ |
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// 在H5中，外部value变化后，修改input中的值，不会触发@input事件，此时手动调用值变化方法 |
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if (this.firstChange === false && this.changeFromInner === false) { |
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this.valueChange() |
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} |
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/* #endif */ |
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this.firstChange = false |
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// 重置changeFromInner的值为false，标识下一次引起默认为外部引起的 |
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this.changeFromInner = false |
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} |
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} |
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}, |
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computed: { |
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// 组件的类名 |
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textareaClass() { |
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let classes = [], |
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{ border, disabled, shape } = this |
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border === 'surround' && |
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(classes = classes.concat(['u-border', 'u-textarea--radius'])) |
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border === 'bottom' && |
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(classes = classes.concat([ |
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'u-border-bottom', |
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'u-textarea--no-radius' |
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])) |
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disabled && classes.push('u-textarea--disabled') |
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return classes.join(' ') |
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}, |
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// 组件的样式 |
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textareaStyle() { |
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const style = {} |
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// #ifdef APP-NVUE |
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// 由于textarea在安卓nvue上的差异性，需要额外再调整其内边距 |
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if (uni.$u.os() === 'android') { |
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style.paddingTop = '6px' |
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style.paddingLeft = '9px' |
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style.paddingBottom = '3px' |
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style.paddingRight = '6px' |
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} |
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// #endif |
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return uni.$u.deepMerge(style, uni.$u.addStyle(this.customStyle)) |
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} |
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}, |
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methods: { |
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// 在微信小程序中，不支持将函数当做props参数，故只能通过ref形式调用 |
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setFormatter(e) { |
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this.innerFormatter = e |
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}, |
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onFocus(e) { |
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this.$emit('focus', e) |
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}, |
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methods: { |
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// 在微信小程序中，不支持将函数当做props参数，故只能通过ref形式调用 |
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setFormatter(e) { |
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this.innerFormatter = e |
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}, |
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onFocus(e) { |
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this.$emit("focus", e); |
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}, |
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onBlur(e) { |
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this.$emit("blur", e); |
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// 尝试调用u-form的验证方法 |
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uni.$u.formValidate(this, "blur"); |
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}, |
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onLinechange(e) { |
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this.$emit("linechange", e); |
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}, |
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onInput(e) { |
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let { value = "" } = e.detail || {}; |
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// 格式化过滤方法 |
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const formatter = this.formatter || this.innerFormatter |
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const formatValue = formatter(value) |
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// 为了避免props的单向数据流特性，需要先将innerValue值设置为当前值，再在$nextTick中重新赋予设置后的值才有效 |
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this.innerValue = value |
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this.$nextTick(() => { |
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this.innerValue = formatValue; |
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this.valueChange(); |
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}) |
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}, |
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// 内容发生变化，进行处理 |
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valueChange() { |
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const value = this.innerValue; |
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this.$nextTick(() => { |
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this.$emit("input", value); |
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// 标识value值的变化是由内部引起的 |
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this.changeFromInner = true; |
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this.$emit("change", value); |
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// 尝试调用u-form的验证方法 |
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uni.$u.formValidate(this, "change"); |
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}); |
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}, |
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onConfirm(e) { |
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this.$emit("confirm", e); |
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}, |
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onKeyboardheightchange(e) { |
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this.$emit("keyboardheightchange", e); |
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}, |
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onBlur(e) { |
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this.$emit('blur', e) |
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// 尝试调用u-form的验证方法 |
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uni.$u.formValidate(this, 'blur') |
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}, |
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}; |
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onLinechange(e) { |
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this.$emit('linechange', e) |
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}, |
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onInput(e) { |
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let { value = '' } = e.detail || {} |
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// 格式化过滤方法 |
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const formatter = this.formatter || this.innerFormatter |
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const formatValue = formatter(value) |
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// 为了避免props的单向数据流特性，需要先将innerValue值设置为当前值，再在$nextTick中重新赋予设置后的值才有效 |
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this.innerValue = value |
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this.$nextTick(() => { |
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this.innerValue = formatValue |
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this.valueChange() |
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}) |
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}, |
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// 内容发生变化，进行处理 |
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valueChange() { |
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const value = this.innerValue |
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this.$nextTick(() => { |
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this.$emit('input', value) |
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// 标识value值的变化是由内部引起的 |
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this.changeFromInner = true |
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this.$emit('change', value) |
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// 尝试调用u-form的验证方法 |
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uni.$u.formValidate(this, 'change') |
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}) |
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}, |
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onConfirm(e) { |
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this.$emit('confirm', e) |
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}, |
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onKeyboardheightchange(e) { |
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this.$emit('keyboardheightchange', e) |
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} |
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} |
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} |
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</script> |
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<style lang="scss" scoped> |
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@import "../../libs/css/components.scss"; |
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@import '../../libs/css/components.scss'; |
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.u-textarea { |
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border-radius: 4px; |
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background-color: #fff; |
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position: relative; |
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@include flex; |
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flex: 1; |
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padding: 9px; |
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border-radius: 4px; |
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background-color: #fff; |
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position: relative; |
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@include flex; |
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flex: 1; |
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padding: 9px; |
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&--radius { |
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border-radius: 4px; |
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} |
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&--radius { |
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border-radius: 4px; |
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} |
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&--no-radius { |
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border-radius: 0; |
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} |
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&--no-radius { |
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border-radius: 0; |
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} |
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&--disabled { |
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background-color: #f5f7fa; |
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} |
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&--disabled { |
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background-color: #f5f7fa; |
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} |
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&__field { |
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flex: 1; |
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font-size: 15px; |
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color: $u-content-color; |
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width: 100%; |
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} |
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&__field { |
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flex: 1; |
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font-size: 15px; |
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color: $u-content-color; |
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width: 100%; |
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} |
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&__count { |
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position: absolute; |
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right: 5px; |
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bottom: 2px; |
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font-size: 12px; |
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color: $u-tips-color; |
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background-color: #ffffff; |
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padding: 1px 4px; |
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} |
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&__count { |
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position: absolute; |
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right: 5px; |
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bottom: 2px; |
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font-size: 12px; |
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color: $u-tips-color; |
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background-color: #ffffff; |
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padding: 1px 4px; |
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} |
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} |
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</style> |
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