zhangmeng
2024-04-19 e3ba120cb766a17e098e58d11c39ffc600a3070c
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<template>
    <u-transition
        mode="fade"
        :show="show"
    >
        <view
            class="u-alert"
            :class="[`u-alert--${type}--${effect}`]"
            @tap.stop="clickHandler"
            :style="[$u.addStyle(customStyle)]"
        >
            <view
                class="u-alert__icon"
                v-if="showIcon"
            >
                <u-icon
                    :name="iconName"
                    size="18"
                    :color="iconColor"
                ></u-icon>
            </view>
            <view
                class="u-alert__content"
                :style="[{
                    paddingRight: closable ? '20px' : 0
                }]"
            >
                <text
                    class="u-alert__content__title"
                    v-if="title"
                    :style="[{
                        fontSize: $u.addUnit(fontSize),
                        textAlign: center ? 'center' : 'left'
                    }]"
                    :class="[effect === 'dark' ? 'u-alert__text--dark' : `u-alert__text--${type}--light`]"
                >{{ title }}</text>
                <text
                    class="u-alert__content__desc"
                    v-if="description"
                    :style="[{
                        fontSize: $u.addUnit(fontSize),
                        textAlign: center ? 'center' : 'left'
                    }]"
                    :class="[effect === 'dark' ? 'u-alert__text--dark' : `u-alert__text--${type}--light`]"
                >{{ description }}</text>
            </view>
            <view
                class="u-alert__close"
                v-if="closable"
                @tap.stop="closeHandler"
            >
                <u-icon
                    name="close"
                    :color="iconColor"
                    size="15"
                ></u-icon>
            </view>
        </view>
    </u-transition>
</template>
 
<script>
    import props from './props.js';
    /**
     * Alert  警告提示
     * @description 警告提示,展现需要关注的信息。
     * @tutorial https://www.uviewui.com/components/alertTips.html
     * 
     * @property {String}            title       显示的文字 
     * @property {String}            type        使用预设的颜色  (默认 'warning' )
     * @property {String}            description 辅助性文字,颜色比title浅一点,字号也小一点,可选  
     * @property {Boolean}            closable    关闭按钮(默认为叉号icon图标)  (默认 false )
     * @property {Boolean}            showIcon    是否显示左边的辅助图标   ( 默认 false )
     * @property {String}            effect      多图时,图片缩放裁剪的模式  (默认 'light' )
     * @property {Boolean}            center        文字是否居中  (默认 false )
     * @property {String | Number}    fontSize    字体大小  (默认 14 )
     * @property {Object}            customStyle    定义需要用到的外部样式
     * @event    {Function}        click       点击组件时触发
     * @example  <u-alert :title="title"  type = "warning" :closable="closable" :description = "description"></u-alert>
     */
    export default {
        name: 'u-alert',
        mixins: [uni.$u.mpMixin, uni.$u.mixin, props],
        data() {
            return {
                show: true
            }
        },
        computed: {
            iconColor() {
                return this.effect === 'light' ? this.type : '#fff'
            },
            // 不同主题对应不同的图标
            iconName() {
                switch (this.type) {
                    case 'success':
                        return 'checkmark-circle-fill';
                        break;
                    case 'error':
                        return 'close-circle-fill';
                        break;
                    case 'warning':
                        return 'error-circle-fill';
                        break;
                    case 'info':
                        return 'info-circle-fill';
                        break;
                    case 'primary':
                        return 'more-circle-fill';
                        break;
                    default: 
                        return 'error-circle-fill';
                }
            }
        },
        methods: {
            // 点击内容
            clickHandler() {
                this.$emit('click')
            },
            // 点击关闭按钮
            closeHandler() {
                this.show = false
            }
        }
    }
</script>
 
<style lang="scss" scoped>
    @import "../../libs/css/components.scss";
 
    .u-alert {
        position: relative;
        background-color: $u-primary;
        padding: 8px 10px;
        @include flex(row);
        align-items: center;
        border-top-left-radius: 4px;
        border-top-right-radius: 4px;
        border-bottom-left-radius: 4px;
        border-bottom-right-radius: 4px;
 
        &--primary--dark {
            background-color: $u-primary;
        }
 
        &--primary--light {
            background-color: #ecf5ff;
        }
 
        &--error--dark {
            background-color: $u-error;
        }
 
        &--error--light {
            background-color: #FEF0F0;
        }
 
        &--success--dark {
            background-color: $u-success;
        }
 
        &--success--light {
            background-color: #f5fff0;
        }
 
        &--warning--dark {
            background-color: $u-warning;
        }
 
        &--warning--light {
            background-color: #FDF6EC;
        }
 
        &--info--dark {
            background-color: $u-info;
        }
 
        &--info--light {
            background-color: #f4f4f5;
        }
 
        &__icon {
            margin-right: 5px;
        }
 
        &__content {
            @include flex(column);
            flex: 1;
 
            &__title {
                color: $u-main-color;
                font-size: 14px;
                font-weight: bold;
                color: #fff;
                margin-bottom: 2px;
            }
 
            &__desc {
                color: $u-main-color;
                font-size: 14px;
                flex-wrap: wrap;
                color: #fff;
            }
        }
 
        &__title--dark,
        &__desc--dark {
            color: #FFFFFF;
        }
 
        &__text--primary--light,
        &__text--primary--light {
            color: $u-primary;
        }
 
        &__text--success--light,
        &__text--success--light {
            color: $u-success;
        }
 
        &__text--warning--light,
        &__text--warning--light {
            color: $u-warning;
        }
 
        &__text--error--light,
        &__text--error--light {
            color: $u-error;
        }
 
        &__text--info--light,
        &__text--info--light {
            color: $u-info;
        }
 
        &__close {
            position: absolute;
            top: 11px;
            right: 10px;
        }
    }
</style>