vant/packages/image-preview/image-preview.vue
neverland d7cee6e8f4 [new feature] ImagePreview reconstruct (#201)
* [Document] add english document of Checkbox

* [Document] add english document of Field

* [Document] add english document of NumberKeyboard

* [bugfix] NumberKeyboard should not dispaly title when title is empty

* [Document] add english document of PasswordInput

* [Document] add english document of Radio

* [document] add english document of Switch

* [bugfix] remove redundent styles in english document

* [Document] fix details

* fix Switch test cases

* [bugfix] Swipe shouid reinitialize when item changes

* [new feature] ImagePreview reconstruct
2017-10-12 20:26:28 -05:00

76 lines
1.5 KiB
Vue

<template>
<div
v-show="value"
class="van-image-preview"
@touchstart="onTouchStart"
@touchmove="onTouchMove"
@touchend="onTouchEnd"
@touchcancel="onTouchEnd"
>
<van-swipe>
<van-swipe-item v-for="(item, index) in images" :key="index">
<img class="van-image-preview__image" :src="item" >
</van-swipe-item>
</van-swipe>
</div>
</template>
<script>
import Popup from '../mixins/popup';
import Swipe from '../swipe';
import SwipeItem from '../swipe-item';
export default {
name: 'van-image-preview',
mixins: [Popup],
components: {
[Swipe.name]: Swipe,
[SwipeItem.name]: SwipeItem
},
props: {
overlay: {
default: true
},
lockOnScroll: {
default: true
},
closeOnClickOverlay: {
default: true
}
},
data() {
return {
images: []
};
},
methods: {
onTouchStart(event) {
this.touchStartTime = new Date();
this.touchStartX = event.touches[0].clientX;
this.touchStartY = event.touches[0].clientY;
this.deltaX = 0;
this.deltaY = 0;
},
onTouchMove(event) {
event.preventDefault();
this.deltaX = event.touches[0].clientX - this.touchStartX;
this.deltaY = event.touches[0].clientY - this.touchStartY;
},
onTouchEnd() {
// prevent long tap to close component
const deltaTime = new Date() - this.touchStartTime;
if (deltaTime < 100 && Math.abs(this.deltaX) < 20 && Math.abs(this.deltaY) < 20) {
this.value = false;
}
}
}
};
</script>