H5-ThreeDoorder/components/film-swiper/film-swiper.vue

793 lines
23 KiB
Vue
Raw Permalink Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<!-- 电影画廊组件 -->
<template>
<view class="ynGalleryPanel">
<view class="gallerypanel" style="filter:brightness(1);border-radius:1upx"
:style="{'background':bkstyle,'height':galleryheight+'px','width':'100%'}">
<scroll-view class="scroll-view" scroll-x="true" scroll-with-animation="true" :scroll-into-view="toview"
:scroll-left="scrollLeft" @scroll="scroll">
<!-- scroll-view-panle 容纳左右空块+中间img块 -->
<view class="scroll-view-panle" @touchend='touchEndHandle' @touchstart='touchStartHandle'
@touchmove='touchMoveHandle'>
<!-- 左侧留空 必须用min-width属性 用width属性无效-->
<view class="leftview" :style="{'min-width':sviewlst.leftview.w+'px','height':galleryheight+'px'}">
</view>
<!-- 中间图像横向列表 ==-->
<!-- 外层 高度与画廊高度一样 -->
<view :id="'imgviewpanel'+index" :ref="'imgviewpanel'+index"
:class="[activeviewindex == index? 'trans-fadeout': '']" @animationstart="animationstartHandle"
@animationend="animationendHandle" v-for="(item,index) in sviewlst.imgsview" :key="index"
:style="{'width':item.w+'px','height':galleryheight+'px'}"
style="border: #BB6622 0px solid;display:flex;flex-direction: column;align-content:center;justify-content: flex-end;">
<!-- 内层 高度是图片容器的高度 -->
<!-- 顶部圆角角标 -->
<view v-if="showbadge && badegtype=='round'" class="roundbadge"
:style="{background:[(index % 2) ==0? 'red':'green']}">
<text> {{item.badeg}}</text>
</view>
<!-- 三角标记组件 -->
<!-- <ynTriangleBadge v-if="showbadge && badegtype=='trian'" :width="badegwidth"
:height="badegheight" :text="item.badeg" :bgcolor="item.badegcolor"
style="z-index:2;align-self: flex-end;margin-right: 5px;border: #EC6D2C 0upx solid;"
:style="{'margin-bottom':(parseInt(badegheight)+5)*-1+'px'}">
</ynTriangleBadge> -->
<!-- 图片框 居中属性-->
<view style="display:flex; align-content:flex-end;justify-content: center; border:red 0px solid;"
:style="{'width':item.w+'px','height': item.h+'px'}">
<image :ref="'image'+index"
style="align-self: center;border-radius: 1px; "
:style="{'width' :item.w-10 +'px',
'height':item.h-10 +'px',
'border':[activeviewindex == index? '#EC6D2C 1px solid':'#EC6D2C 0px solid']}"
:src="item.posterUrl"
@click="clickimg(index,item)" mode="scaleToFill">
</image>
</view>
<!-- 描述视图 -->
<view
style="display: flex;justify-content: center;margin-bottom: 4px;border: #008000 0px solid;min-height: 10px;">
<!-- <text v-if="showdec" style="align-self: center;font-size: 12px;color:white">{{item.dec}}</text> -->
</view>
</view>
<!-- 右侧留空 必须用min-width属性 用width属性无效-->
<view class="rightview"
:style="{'min-width':sviewlst.rightview.w+'px','height':galleryheight+'px'}"></view>
</view>
</scroll-view>
</view>
</view>
</template>
<script>
import ynTriangleBadge from './film-badge.vue';
export default {
components: {
ynTriangleBadge,
},
name: 'FilmSwiper',
props: {
//背景起始色
bkstart: {
type: [String],
default: '#000000'
},
// 背景结束色
bkend: {
type: [String],
default: '#000000'
},
// 画廊高度 单位px
galleryheight: {
type: [Number, String],
default: 180 * 1.0
},
//图像源对象列表
images: {
type: Array,
},
//图像容器宽度
imgviewwidth: {
type: [Number],
default: parseInt(170 * 0.5)
},
//图像容器高度
imgviewheight: {
type: [Number],
default: parseInt(235 * 0.45)
},
showbadge: {
type: [Boolean],
default: false
},
showdec: {
type: [Boolean],
default: false
},
badegtype: {
type: [String],
default: 'trian' //round trian
},
badegwidth: {
type: [String],
default: "25"
},
badegheight: {
type: [String],
default: "25"
}
},
data() {
return {
//bkstart bkend不能在组件内赋值 该元素做中转
bkstartcolor: this.bkstart,
bkendcolor: this.bkend,
badegcolor: "red",
// 定时器 用来判断滑动是否结束
TTT: null,
// 这个变量用来判断是否进行了滑动操作
istouchmove: false,
// 手指是否离开了屏幕
isEndTouch: true,
// 屏幕中心点
screencenterpos: 0,
//当前焦点view块index序
activeviewindex: 0,
//焦点图中间点与屏幕中间点的偏移,通常不滑动的时候,焦点图总是显示在中间,且图的中间点总是与屏幕中间重合
offset: 0,
//这个用来定位具体的位置
scrollLeft: 0,
//当前距离左边的距离
newleft: 0,
//上一次距离左边的距离
oldleft: {
scrollleft: 0
},
//滚动组件内视图块数据定义
sviewlst: {
leftview: {}, //左则空块
rightview: {}, //右侧空块
imgsview: [] //中间image图像数组块
},
toview: "viewitem0",
};
},
created: function() {
if (this.images.length > 0) {
this.screencenterpos = parseInt(uni.upx2px(750) / 2);
this.upDataScrollviewLayout(this.activeviewindex);
}
},
mounted: function() {},
watch: {
async images() {
var that = this;
console.log('watch监控到images属性变化');
this.screencenterpos = parseInt(uni.upx2px(750) / 2);
console.log("屏幕中点pos位置:" + this.screencenterpos + 'px');
this.upDataScrollviewLayout(this.activeviewindex);
},
activeviewindex() {
this.$emit('scrollerItem', this.images[this.activeviewindex])
}
},
computed: {
// 返回径向渐变样式值 用来设置背景 如果定义了每个image的主色domiant则会设置该主色作为径向渐变的起始色
bkstyle() {
// return `radial-gradient(circle,${this.bkstartcolor}, ${this.bkendcolor})`
},
},
methods: {
SetBkRightAnimate: function(startcolor) {
var that = this;
var nums = 10;
//取2个颜色之间的过渡色
var colorarr = this.gradientColor(startcolor, this.bkendcolor, nums);
// console.log(colorarr)
let num = 10;
//渐显
var i = setInterval(function() {
that.bkstartcolor = colorarr[num - 1]
num--;
//0=最亮 所以这里也可以控制明暗
if (num < (10 / 2))
clearInterval(i);
}, 50);
},
endscroll: function(e) {
// console.log('endscorll')
},
//实时监控scrol位置 计算焦点图中点偏移
scroll: function(e) {
// console.log('检测到scroll 被触发......')
var that = this;
// console.log(e)
this.newleft = e.mp.detail.scrollLeft;
this.oldleft.scrollleft = this.newleft;
//scroll左边点+屏幕中点 总是随着拖动而变化
let cenpos = e.mp.detail.scrollLeft + this.screencenterpos;
// console.log('中锚点位置:'+cenpos);
for (let i in this.sviewlst.imgsview) {
let item = this.sviewlst.imgsview[i];
if ((item.l <= cenpos) && (item.r >= cenpos)) {
let imgcpos = item.l + parseInt(item.w / 2);
let aoffset = cenpos - imgcpos;
this.offset = aoffset;
this.upDataScrollviewLayout(i);
break;
}
}
},
//$emit 向上传递 所有父或者父父组件会依次接收到emit事件
clickimg(idx, imgviewobj) {
this.activeviewindex = idx
this.scrollLeft = this.sviewlst.imgsview[idx].l - parseInt(this.screencenterpos) + parseInt(this.sviewlst
.imgsview[idx].w / 2);
this.$emit('clickimg', imgviewobj)
},
touchStartHandle(e) {
// 手指按到屏幕
this.istouchmove = false;
this.isEndTouch = false;
},
touchMoveHandle(e) {
// 手指滑动中
this.istouchmove = true;
},
touchEndHandle(e) {
// 手指离开屏幕
this.isEndTouch = true;
},
animationstartHandle() {
// 元素css动画开始事件
// console.log('animate is start')
},
animationendHandle() {
//渲染背景颜色(right动画)
let color = this.sviewlst.imgsview[this.activeviewindex].dominant;
//触发背景动画
this.SetBkRightAnimate(color);
},
//更新Scrollview内view块布局
//offset: 为实现滑动动画效果,需要临近的2张图片做呼吸效果(焦点图逐渐放大缩小,相领的图逐渐缩小放大),需要这个参数,
// offset参数在 滑动scrollview的实时回调函数中计算 offset暂时设置为全局变量
// offset相对于中点偏移,中点左边为负 右边为正 类似于线段图() 本函数会根据offset和最大放大系数来计算放大系数
// 焦点图中间点与屏幕中间点的偏移,通常不滑动的时候,焦点图总是显示在中间,且图的中间点总是与屏幕中间重合
// 当为负的时候,与左边的index 进行互斥放大和缩小,
// 当为0的时候,当前焦点图放到了最大
// 当为正的时候,与右边的index 进行互斥放大和缩小
upDataScrollviewLayout(activeindex) {
console.log('检测到 initScrollviewLayout');
var that = this;
this.upbkcolor = false;
var that = this;
if (this.images.length <= 0) {
return
};
var offset = this.offset;
//一、构造滚动组件内view块分布
//1、左view块 留空用 为了让第一张图片可以居中
var lview = {}
lview.dec = "left view"
lview.w = this.screencenterpos;
lview.h = this.imgviewheight;
lview.l = 0;
lview.r = lview.l + lview.w;
//2、处理中间imagelist块
//2.1、设计默认大小的imageview块布局
var arrimgview = [];
var i = 0;
while (i <= this.images.length - 1) {
let obj = {
index: i,
url: '', //源
dec: '', //图像描述信息
badeg: '', //角标文字
badegcolor: this.badegcolor, //角标默认颜色
dominant: this.bkstartcolor, //默认主色
w: 0, //该view宽度
h: 0, //该view高度
l: 0, //该view块左边距scroll容器左边距离
r: 0, //该view右边距scroll容器左边距离
}
//合并外界传来image对象属性 若有重合的属性 后面的覆盖前面
let imgview = Object.assign(obj, this.images[i]);
//添加长宽等数据
imgview.w = this.imgviewwidth;
imgview.h = this.imgviewheight;
if (i == 0) {
imgview.l = lview.r + 0;
} else {
imgview.l = arrimgview[i - 1].r + 0;
}
imgview.r = imgview.l + imgview.w;
arrimgview.push(imgview);
i++;
};
//3、右边view块 留空用 为了让最后一张图片可以居中
let rview = {}
rview.dec = "right view"
//使得最后一张图片中间部分对齐屏幕正中间
rview.w = this.screencenterpos;
rview.h = this.imgviewheight;
if (arrimgview.length <= 0) {
rview.l = lview.r + 0;
} else {
rview.l = arrimgview[arrimgview.length - 1].r + 0;
}
rview.r = rview.l + rview.w;
//二、计算焦点图 焦点图左右临图的放大系数关系 修改相应块的高宽
var leftaf = 1;
var rightaf = 1;
var activeaf = 1;
var af = 0.18;
//左右临图与焦点图的系数计算(焦点图总是与左临图 或者 右临图发生进退大小关系2张图的关系 构成视觉动画))
if (arrimgview.length > 0) {
let aindex = activeindex;
let lindex = parseInt(aindex) - 1;
let rindex = parseInt(aindex) + 1;
//取焦点imgview块(默认放大1.18倍))宽度的一半
let lw = (this.imgviewwidth * 1.18) / 2
//根据偏移取计算百分比
let bl = Math.abs(offset) / lw
// 计算焦点放大系数 默认最大1.18
if (offset == 0) {
activeaf = 1.18;
leftaf = 1;
rightaf = 1;
}
if (offset > 0) {
activeaf = 1 + 0.18 * (1 - bl / 2)
rightaf = 1 + (1.18 - activeaf)
leftaf = 1;
}
if (offset < 0) {
activeaf = 1 + 0.18 * (1 - bl / 2)
leftaf = 1 + (1.18 - activeaf)
rightaf = 1;
}
//设置焦点图放大系数
if (aindex >= 0 && aindex <= arrimgview.length - 1) {
arrimgview[aindex].w = this.imgviewwidth * activeaf;
arrimgview[aindex].h = this.imgviewheight * activeaf;
} else {
console.log("焦点图越界");
return;
};
//设置左临图 当offset小于0时,当前焦点图与左则相领图做拉扯动画
if (offset < 0) {
if (lindex >= 0) {
arrimgview[lindex].w = this.imgviewwidth * leftaf;
arrimgview[lindex].h = this.imgviewheight * leftaf;
}
}
//设置右临图 当offset大于0时,当前焦点图与右则相领图做拉扯动画
if (offset > 0) {
if (rindex <= arrimgview.length - 1) {
arrimgview[rindex].w = this.imgviewwidth * rightaf;
arrimgview[rindex].h = this.imgviewheight * rightaf;
}
}
}
//三、 修正左右边距lveiw rview视图大小等
if (arrimgview.length > 0) {
lview.w = lview.w - (arrimgview[0].w / 2);
lview.r = lview.l + lview.w;
for (let i = 0; i <= arrimgview.length - 1; i++) {
if (i == 0) {
arrimgview[i].l = lview.r + 0;
} else {
arrimgview[i].l = arrimgview[i - 1].r + 0;
}
arrimgview[i].r = arrimgview[i].l + arrimgview[i].w;
};
rview.w = rview.w - (arrimgview[arrimgview.length - 1].w / 2) + 0;
rview.l = arrimgview[arrimgview.length - 1].r + 0;
rview.r = rview.l + rview.w;
}
//四、更新data数据 因为在template中进行了绑定 根据vue双向数据特性 会更新界面
var obj = {
'leftview': lview,
'rightview': rview,
'imgsview': arrimgview
};
this.activeviewindex = activeindex;
this.sviewlst = obj;
this.$nextTick(function() {
var that = this
if (this.istouchmove == true) {
clearTimeout(that.TTT);
var ai = that.activeviewindex;
var TTT = setTimeout(function() {
if (that.activeviewindex == ai) {
that.$emit('clickimg', that.sviewlst.imgsview[that.activeviewindex]);
}
}, 300)
}
})
},
/* 取2个颜色之间的过渡色 参考自网络
// startColor开始颜色hex
// endColor 结束颜色hex
// count : 产生几个 也就是步长
// sample: colorarr = gradientColor(startcolor,endcolor,5); 生成5个过渡颜色
*/
gradientColor(startColor, endColor, count) {
let startRGB = this.colorToRgb(startColor); //转换为rgb数组模式
let startR = startRGB[0];
let startG = startRGB[1];
let startB = startRGB[2];
let endRGB = this.colorToRgb(endColor);
let endR = endRGB[0];
let endG = endRGB[1];
let endB = endRGB[2];
let sR = (endR - startR) / count; //总差值
let sG = (endG - startG) / count;
let sB = (endB - startB) / count;
var colorArr = [];
for (var i = 0; i < count; i++) {
//计算每一步的hex值
var hex = this.colorToHex('rgb(' + parseInt((sR * i + startR)) + ',' + parseInt((sG * i + startG)) +
',' +
parseInt((sB * i + startB)) + ')');
colorArr.push(hex);
}
return colorArr;
},
// 将hex表示方式转换为rgb表示方式(这里返回rgb数组模式)
colorToRgb(sColor) {
// <http://www.w3.org/TR/css3-color/#svg-color>
var names = {
aliceblue: "f0f8ff",
antiquewhite: "faebd7",
aqua: "0ff",
aquamarine: "7fffd4",
azure: "f0ffff",
beige: "f5f5dc",
bisque: "ffe4c4",
black: "000",
blanchedalmond: "ffebcd",
blue: "00f",
blueviolet: "8a2be2",
brown: "a52a2a",
burlywood: "deb887",
burntsienna: "ea7e5d",
cadetblue: "5f9ea0",
chartreuse: "7fff00",
chocolate: "d2691e",
coral: "ff7f50",
cornflowerblue: "6495ed",
cornsilk: "fff8dc",
crimson: "dc143c",
cyan: "0ff",
darkblue: "00008b",
darkcyan: "008b8b",
darkgoldenrod: "b8860b",
darkgray: "a9a9a9",
darkgreen: "006400",
darkgrey: "a9a9a9",
darkkhaki: "bdb76b",
darkmagenta: "8b008b",
darkolivegreen: "556b2f",
darkorange: "ff8c00",
darkorchid: "9932cc",
darkred: "8b0000",
darksalmon: "e9967a",
darkseagreen: "8fbc8f",
darkslateblue: "483d8b",
darkslategray: "2f4f4f",
darkslategrey: "2f4f4f",
darkturquoise: "00ced1",
darkviolet: "9400d3",
deeppink: "ff1493",
deepskyblue: "00bfff",
dimgray: "696969",
dimgrey: "696969",
dodgerblue: "1e90ff",
firebrick: "b22222",
floralwhite: "fffaf0",
forestgreen: "228b22",
fuchsia: "f0f",
gainsboro: "dcdcdc",
ghostwhite: "f8f8ff",
gold: "ffd700",
goldenrod: "daa520",
gray: "808080",
green: "008000",
greenyellow: "adff2f",
grey: "808080",
honeydew: "f0fff0",
hotpink: "ff69b4",
indianred: "cd5c5c",
indigo: "4b0082",
ivory: "fffff0",
khaki: "f0e68c",
lavender: "e6e6fa",
lavenderblush: "fff0f5",
lawngreen: "7cfc00",
lemonchiffon: "fffacd",
lightblue: "add8e6",
lightcoral: "f08080",
lightcyan: "e0ffff",
lightgoldenrodyellow: "fafad2",
lightgray: "d3d3d3",
lightgreen: "90ee90",
lightgrey: "d3d3d3",
lightpink: "ffb6c1",
lightsalmon: "ffa07a",
lightseagreen: "20b2aa",
lightskyblue: "87cefa",
lightslategray: "789",
lightslategrey: "789",
lightsteelblue: "b0c4de",
lightyellow: "ffffe0",
lime: "0f0",
limegreen: "32cd32",
linen: "faf0e6",
magenta: "f0f",
maroon: "800000",
mediumaquamarine: "66cdaa",
mediumblue: "0000cd",
mediumorchid: "ba55d3",
mediumpurple: "9370db",
mediumseagreen: "3cb371",
mediumslateblue: "7b68ee",
mediumspringgreen: "00fa9a",
mediumturquoise: "48d1cc",
mediumvioletred: "c71585",
midnightblue: "191970",
mintcream: "f5fffa",
mistyrose: "ffe4e1",
moccasin: "ffe4b5",
navajowhite: "ffdead",
navy: "000080",
oldlace: "fdf5e6",
olive: "808000",
olivedrab: "6b8e23",
orange: "ffa500",
orangered: "ff4500",
orchid: "da70d6",
palegoldenrod: "eee8aa",
palegreen: "98fb98",
paleturquoise: "afeeee",
palevioletred: "db7093",
papayawhip: "ffefd5",
peachpuff: "ffdab9",
peru: "cd853f",
pink: "ffc0cb",
plum: "dda0dd",
powderblue: "b0e0e6",
purple: "800080",
rebeccapurple: "663399",
red: "f00",
rosybrown: "bc8f8f",
royalblue: "4169e1",
saddlebrown: "8b4513",
salmon: "fa8072",
sandybrown: "f4a460",
seagreen: "2e8b57",
seashell: "fff5ee",
sienna: "a0522d",
silver: "c0c0c0",
skyblue: "87ceeb",
slateblue: "6a5acd",
slategray: "708090",
slategrey: "708090",
snow: "fffafa",
springgreen: "00ff7f",
steelblue: "4682b4",
tan: "d2b48c",
teal: "008080",
thistle: "d8bfd8",
tomato: "ff6347",
turquoise: "40e0d0",
violet: "ee82ee",
wheat: "f5deb3",
white: "fff",
whitesmoke: "f5f5f5",
yellow: "ff0",
yellowgreen: "9acd32"
};
var reg = /^#([0-9a-fA-f]{3}|[0-9a-fA-f]{6})$/;
var sColor = sColor.toLowerCase();
//颜色常量转换
if (sColor.slice(0, 1) != "#") {
for (var name in names) {
if (name == sColor) {
var sColor = "#" + names[name];
}
}
}; {
if (sColor && reg.test(sColor)) {
if (sColor.length === 4) {
var sColorNew = "#";
for (var i = 1; i < 4; i += 1) {
sColorNew += sColor.slice(i, i + 1).concat(sColor.slice(i, i + 1));
}
sColor = sColorNew;
}
//处理6位的颜色值
var sColorChange = [];
for (var i = 1; i < 7; i += 2) {
sColorChange.push(parseInt("0x" + sColor.slice(i, i + 2)));
}
return sColorChange;
} else {
return sColor;
}
}
},
// 将rgb表示方式转换为hex表示方式
colorToHex(rgb) {
var _this = rgb;
var reg = /^#([0-9a-fA-f]{3}|[0-9a-fA-f]{6})$/;
if (/^(rgb|RGB)/.test(_this)) {
var aColor = _this.replace(/(?:\(|\)|rgb|RGB)*/g, "").split(",");
var strHex = "#";
for (var i = 0; i < aColor.length; i++) {
var hex = Number(aColor[i]).toString(16);
hex = hex < 10 ? 0 + '' + hex : hex; // 保证每个rgb的值为2位
if (hex === "0") {
hex += hex;
}
strHex += hex;
}
if (strHex.length !== 7) {
strHex = _this;
}
return strHex;
} else if (reg.test(_this)) {
var aNum = _this.replace(/#/, "").split("");
if (aNum.length === 6) {
return _this;
} else if (aNum.length === 3) {
var numHex = "#";
for (var i = 0; i < aNum.length; i += 1) {
numHex += (aNum[i] + aNum[i]);
}
return numHex;
}
} else {
return _this;
}
},
},
}
</script>
<style lang="scss" scoped="">
// 创建一张隐藏的画布 用于取色
.canvas-box {
margin-left: 500upx;
width: 0;
height: 0;
overflow: hidden
}
//画廊总容器 静态样式放这里 动态样式放template
.gallerypanel {
.scroll-view {
.scroll-view-panle {
display: flex;
height: 100%;
width: 100%;
white-space: nowrap;
.leftview {
//动态
}
.imgviewpanel {
.角标 {}
.imgview {
.图片 {}
}
.描述 {
.文本 {}
}
}
.rightview {
//动态
}
}
}
}
// 隐藏滚动条 hbx1.8版本 这样写有错误伪类错误 需要把这代码放到小程序工具的main.wsxx中去
// .gallerypanel ::-webkit-scrollbar {display: none;}
// .scroll-view ::-webkit-scrollbar {
// display: none;
// }
.roundbadge {
z-index: 2;
display: flex;
align-self: flex-end;
align-items: center;
justify-content: center;
font-size: 12px;
color: white;
border-radius: 8px;
min-width: 12px;
min-height: 12px;
max-height: 12px;
padding: 3px 5px;
margin-bottom: -17px; //17=12+5 12是圆角角标高度 5是图片中间的边距
margin-right: 3px; //右边距是5px 这里取3
}
* {
-webkit-overflow-scrolling: touch;
}
// 呼吸帧
@keyframes living {
0% {
// transform-origin:'center bottom';
transform: scale(1);
opacity: 1;
}
50% {
// transform-origin:'center bottom';
transform: scale(1.05);
opacity: 1;
/*圆形放大的同时透明度逐渐减小为0*/
}
100% {
// transform-origin:'center bottom';
transform: scale(1);
opacity: 1;
}
}
.trans-fadeout {
// -webkit-transition:all 0.2s linear;
// -moz-transition:all 0.2s linear;
// -ms-transition:all 0.2s linear;
// -o-transition:all 0.2s linear;
animation: living 1s ease-in-out 1;
}
</style>