master
yutent 2023-12-15 17:30:25 +08:00
parent 84c852e983
commit 620ff68a45
1 changed files with 318 additions and 257 deletions

View File

@ -11,14 +11,25 @@ import '../base/icon.js'
const EV_OPTION = { once: true }
const DOC = document
const ROOT = document.documentElement
const WORKSPACE_WIDTH = 640
const WORKSPACE_HEIGHT = 480
const WORKSPACE_RATIO = 640 / 480
function uuid() {
return Math.random().toString(16).slice(2)
}
function round(n) {
n = Math.round(n)
if (n % 2) {
n--
}
return n
}
class Uploader extends Component {
static props = {
value: [],
value: 'str!https://static.reduzixun.com/r-time/common/2cc153c8018.webp',
accept: '*/*',
maxSize: 0,
disabled: false
@ -30,6 +41,8 @@ class Uploader extends Component {
display: flex;
width: 100%;
font-size: 14px;
-webkit-user-select: none;
user-select: none;
}
img,
a {
@ -42,30 +55,15 @@ class Uploader extends Component {
width: 100%;
padding: 6px 0;
gap: 12px;
-webkit-user-select: none;
user-select: none;
--size: var(--wc-uploader-size, 96px);
--border-color: var(--wc-uploader-border-color, var(--color-grey-2));
--wc-icon-size: 14px;
}
.error {
display: block;
line-height: 1.5;
font-size: 12px;
font-style: normal;
color: var(--color-red-1);
background: none;
}
.limited {
display: none;
}
.upload-button {
position: relative;
display: inline-flex;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
@ -108,49 +106,44 @@ class Uploader extends Component {
}
`,
css`
.file-list {
.image-thumb {
display: flex;
gap: 12px;
align-items: center;
justify-content: center;
width: var(--size);
height: var(--size);
padding: 0 8px;
line-height: 24px;
gap: 6px;
border: 1px solid var(--border-color);
border-radius: 6px;
background: none no-repeat center;
background-size: contain;
transition: background 0.15s linear;
.item {
display: flex;
align-items: center;
justify-content: center;
width: var(--size);
height: var(--size);
padding: 0 8px;
line-height: 24px;
gap: 6px;
border: 1px solid var(--border-color);
border-radius: 6px;
background: none no-repeat center;
background-size: contain;
transition: background 0.15s linear;
--wc-icon-size: 20px;
--wc-icon-size: 20px;
&:hover {
background-color: var(--color-plain-1);
wc-icon {
opacity: 1;
}
}
&:hover {
background-color: var(--color-plain-1);
wc-icon {
flex-shrink: 0;
padding: 3px;
border: 1px solid rgba(255, 255, 255, 0.25);
border-radius: 50%;
background: rgba(64, 64, 64, 0.75);
color: #fff;
opacity: 0;
cursor: pointer;
transition: opacity 0.15s linear;
opacity: 1;
}
}
&:hover {
border-color: rgba(255, 255, 255, 0.5);
}
wc-icon {
flex-shrink: 0;
padding: 3px;
border: 1px solid rgba(255, 255, 255, 0.25);
border-radius: 50%;
background: rgba(64, 64, 64, 0.75);
color: #fff;
opacity: 0;
cursor: pointer;
transition: opacity 0.15s linear;
&:hover {
border-color: rgba(255, 255, 255, 0.5);
}
}
}
@ -194,27 +187,28 @@ class Uploader extends Component {
//panel
css`
.edit-panel {
position: fixed;
left: 50%;
top: 50%;
z-index: 99;
align-items: center;
justify-content: center;
position: absolute;
left: 0;
top: 0;
z-index: 2;
display: none;
width: 800px;
height: 556px;
padding: 16px;
border-radius: 6px;
background: #fff;
box-shadow: 0 0 16px rgba(0, 0, 0, 0.3);
transform: translate(-50%, -50%);
-webkit-user-select: none;
user-select: none;
&.show {
display: flex;
flex-direction: column;
}
}
.workspace {
position: relative;
display: flex;
align-items: center;
justify-content: center;
width: 640px;
height: 480px;
@ -238,9 +232,10 @@ class Uploader extends Component {
background-position: 0 0, 8px 8px;
box-shadow: 0 0 0 1px var(--color-grey-2);
img {
max-width: 100%;
max-height: 100%;
canvas {
display: block;
width: 100%;
height: 100%;
}
}
@ -319,39 +314,47 @@ class Uploader extends Component {
legend {
font-size: 12px;
}
.button {
width: 100%;
margin-top: 8px;
}
}
.toolbar {
display: flex;
gap: 6px;
margin-top: 16px;
}
span {
display: inline-flex;
align-items: center;
justify-content: center;
height: 28px;
padding: 0 8px;
font-size: 12px;
border: 1px solid var(--color-grey-1);
border-radius: 4px;
background: var(--color-plain-1);
cursor: pointer;
}
.button {
display: inline-flex;
align-items: center;
justify-content: center;
height: 28px;
padding: 0 8px;
gap: 4px;
font-size: 12px;
border: 1px solid var(--color-grey-1);
border-radius: 4px;
background: var(--color-plain-1);
cursor: pointer;
}
`
]
#files = []
#timer
#ctx
#img
#panelShow = false
#workspace = {
w: 640,
h: 480
}
// 原图信息
#origin = {
w: 670,
h: 429
x: 0,
y: 0,
w: 0, // 原图宽度
h: 0, // 原图高度
rw: 0, // 渲染宽度
rh: 0, // 渲染高度
scale: 1 //缩放比例
}
#cropData = {
x: 0,
@ -359,74 +362,39 @@ class Uploader extends Component {
w: 300,
h: 300
}
#ratio = 0
#ratio = 1
#toast(msg) {
this.$refs.err.textContent = msg
clearTimeout(this.#timer)
this.#timer = setTimeout(() => {
this.$refs.err.textContent = ''
}, 5000)
#stat = {
blur: false,
scalex: false,
scaley: false,
rotate: 0,
grey: false
}
#fileChange(ev) {
let files = [...ev.target.files]
let file = ev.target.files[0]
ev.target.value = ''
this.#fetchUpload(files)
this.#initPanel(URL.createObjectURL(file))
}
#fetchUpload(files) {
let { limit, maxSize } = this
let len = files.length
if (maxSize > 0) {
files = files.filter(it => it.size <= maxSize)
if (files.length < len) {
len = files.length
this.#toast(`部分文件被忽略, 单文件最大允许 ${parseSize(maxSize)}`)
#fetchUpload(file) {
this.$emit('upload', {
file,
send: url => {
this.value = url
this.#preview()
}
}
if (limit > 0) {
files = files.slice(0, limit - this.#files.length)
if (files.length < len) {
this.#toast(`部分文件被忽略, 最多选择 ${limit} 个文件`)
}
}
if (files.length) {
files = files.map(file => ({ file, id: uuid(), url: '', stat: 0 }))
this.#files = this.#files.concat(files)
this.$emit('upload', {
files,
send: args => {
for (let it of args) {
it.stat = 1
}
this.value = this.#files.map(it => it.url)
}
})
this.$requestUpdate()
}
})
}
#remove(ev, it, id) {
for (let i in this.#files) {
if (it === this.#files[i]) {
this.#files.splice(i, 1)
break
}
}
this.$requestUpdate()
#remove() {
this.value = ''
}
#preview(ev, item) {
this.$refs.view.firstElementChild.src =
item.url || URL.createObjectURL(item.file)
#preview() {
this.$refs.view.firstElementChild.src = this.value
this.$refs.view.style.display = 'flex'
}
@ -434,25 +402,63 @@ class Uploader extends Component {
this.$refs.view.style.display = ''
}
#cancel() {
this.#panelShow = false
this.$requestUpdate()
}
#confirm() {
this.#export().then(bin => {
this.#fetchUpload(bin)
// this.#cancel()
})
}
#download() {
this.#export().then(bin => {
let a = document.createElement('a')
a.href = URL.createObjectURL(bin)
a.download = 'image-cropped.png'
a.click()
this.#cancel()
})
}
#export() {
let { x, y, w, h } = this.#cropData
let data = this.#ctx.getImageData(x, y, w, h)
let can = new OffscreenCanvas(w, h)
let ctx = can.getContext('2d')
ctx.putImageData(data, 0, 0)
return can.convertToBlob({ type: 'image/png', quality: 0.95 })
}
#handleDrag(ev) {
let elem = ev.currentTarget
let outer = elem.parentNode
let { top: _top, left: _left } = offset(outer)
let { top, left } = offset(elem)
let { clientHeight: hh, clientWidth: ww } = outer
let { rw, rh } = this.#origin
let { w, h } = this.#cropData
let ax = ev.x - left
let ay = ev.y - top
let ww = WORKSPACE_WIDTH
let hh = WORKSPACE_HEIGHT
ww -= w
hh -= h
let _x = (ww - rw) / 2
let _y = (hh - rh) / 2
ww -= w + _x
hh -= h + _y
let callback = bind(DOC, 'mousemove', ({ x, y }) => {
x -= _left + ax
y -= _top + ay
x = x < 0 ? 0 : x > ww ? ww : x
y = y < 0 ? 0 : y > hh ? hh : y
x = x < _x ? _x : x > ww ? ww : x
y = y < _y ? _y : y > hh ? hh : y
this.#cropData.x = x
this.#cropData.y = y
elem.style.cssText = `left:${x}px;top:${y}px;width:${w}px;height:${h}px;`
@ -465,141 +471,196 @@ class Uploader extends Component {
return
}
let ratio = +ev.target.dataset.ratio
let { w: ww, h: hh } = this.#workspace
let { w, h } = this.#origin
let { rw, rh } = this.#origin
let { x, y } = this.#cropData
this.#ratio = ratio
if (ratio > 0) {
let min = Math.min(w, h)
if (ratio < 1) {
} else if (ratio === 1) {
w = min
h = min
this.#cropData.w = w
this.#cropData.h = h
let min = Math.min(rw, rh)
if (ratio <= 1) {
rh = min
rw = round(rh * ratio)
} else {
rw = min
rh = round(rw / ratio)
}
this.$refs.crop.style.cssText = `left:${x}px;top:${y}px;width:${w}px;height:${h}px;`
x = (WORKSPACE_WIDTH - rw) / 2
y = (WORKSPACE_HEIGHT - rh) / 2
this.#cropData = { w: rw, h: rh, x, y }
this.$refs.crop.style.cssText = `left:${x}px;top:${y}px;width:${rw}px;height:${rh}px;`
}
}
mounted() {}
#rotate() {
let ctx = this.#ctx
let { x, y, w, h, rw, rh } = this.#origin
// ctx.save()
ctx.clearRect(0, 0, WORKSPACE_WIDTH, WORKSPACE_HEIGHT)
ctx.translate(WORKSPACE_WIDTH / 2, WORKSPACE_HEIGHT / 2)
ctx.rotate((90 * Math.PI) / 180)
ctx.drawImage(this.#img, x - w / 2, y - h / 2, rw, rh)
// ctx.restore()
console.log('<><><><>')
}
#scale() {}
#filter(type) {
if (type === 'blur') {
this.#stat.blur = !this.#stat.blur
let { x, y, rw, rh } = this.#origin
this.#ctx.filter = this.#stat.blur ? 'blur(6px)' : 'none'
// this.#ctx.clearRect(0, 0, WORKSPACE_WIDTH, WORKSPACE_HEIGHT)
this.#ctx.drawImage(this.#img, x, y, rw, rh)
}
}
#initPanel(url) {
let img = new Image()
this.#img = img
this.#ctx.clearRect(0, 0, WORKSPACE_WIDTH, WORKSPACE_HEIGHT)
img.onload = _ => {
let { naturalWidth: w, naturalHeight: h } = img
let scale = 1
let ratio = w / h
let rw, rh
if (ratio > WORKSPACE_RATIO) {
rw = WORKSPACE_WIDTH
scale = rw / w
rh = round(scale * h)
} else if (ratio === WORKSPACE_RATIO) {
rw = WORKSPACE_HEIGHT
rh = rw
scale = rw / w
} else {
rh = WORKSPACE_HEIGHT
scale = rh / h
rw = round(scale * w)
}
let x = (WORKSPACE_WIDTH - rw) / 2
let y = (WORKSPACE_HEIGHT - rh) / 2
this.#origin = { x, y, w, h, rw, rh, scale }
this.#ctx.drawImage(img, x, y, rw, rh)
this.#changeCropRatio({ target: { dataset: { ratio: 1 } } })
this.#panelShow = true
this.$requestUpdate()
}
img.src = url
}
mounted() {
this.#ctx = this.$refs.can.getContext('2d', { willReadFrequently: true })
fetch(this.value)
.then(r => r.blob())
.then(b => {
this.#initPanel(URL.createObjectURL(b))
})
}
render() {
let { disabled } = this
let limited = this.#files.length > 0
let { w, h, x, y } = this.#cropData
let cropStyle = styleMap({
width: w + 'px',
height: h + 'px',
left: x + 'px',
top: y + 'px'
})
console.log(cropStyle)
return html`
<main class="container">
<header class="action-area ${limited ? 'limited' : ''}">
<div ref="button" class="upload-button" @drop.prevent>
<wc-icon name="upload"></wc-icon>
<span>选择图片</span>
<input
class="hidden-input"
title
type="file"
accept="image/*"
disabled=${disabled || limited}
@change=${this.#fileChange}
/>
</div>
<mark ref="err" class="error"></mark>
</header>
<footer
class="file-list"
style=${styleMap({ display: this.#files.length ? '' : 'none' })}
>
${this.#files.map(
it => html`
${this.value
? html`
<section
class="item"
style=${styleMap({
backgroundImage: `url(${it.url})`
})}
class="image-thumb"
style=${styleMap({ backgroundImage: `url(${this.value})` })}
>
<wc-icon
name=${it.stat === 0 ? 'loading' : 'search'}
@click=${ev => this.#preview(ev, it)}
></wc-icon>
<wc-icon
class="del"
name="trash"
data-id=${it.id}
@click=${ev => this.#remove(ev, it, it.id)}
></wc-icon>
<wc-icon name="search" @click=${this.#preview}></wc-icon>
<wc-icon name="trash" @click=${this.#remove}></wc-icon>
</section>
`
)}
</footer>
: html`
<section ref="button" class="upload-button" @drop.prevent>
<wc-icon name="upload"></wc-icon>
<span>选择图片</span>
<input
class="hidden-input"
title
type="file"
accept="image/*"
disabled=${disabled}
@change=${this.#fileChange}
/>
</section>
`}
<div class="edit-panel ${this.#panelShow ? 'show' : ''}">
<div class="workspace">
<canvas ref="can" width="640" height="480"></canvas>
<div
ref="crop"
class="crop-area"
@mousedown.prevent=${this.#handleDrag}
>
<i data-id="1"></i>
<i data-id="2"></i>
<i data-id="3"></i>
<i data-id="4"></i>
</div>
</div>
<aside class="statusbar">
<div class="crop" @click=${this.#changeCropRatio}>
<span data-ratio="1">1:1</span>
<span data-ratio="1.3333">4:3</span>
<span data-ratio="0.75">3:4</span>
<span data-ratio="1.7778">16:9</span>
<span data-ratio="0.5625">9:16</span>
<span data-ratio="0">任意比例</span>
</div>
<fieldset>
<legend>原尺寸</legend>
<span>666x666</span>
</fieldset>
<fieldset>
<legend>原体积</legend>
<span>2.33MB</span>
</fieldset>
<fieldset>
<legend>现尺寸</legend>
<span>666x666</span>
</fieldset>
<fieldset>
<legend>现体积</legend>
<span>800KB</span>
</fieldset>
<span class="button" @click=${this.#cancel}
><wc-icon name="deny"></wc-icon></span
>
<span class="button" @click=${this.#confirm}
><wc-icon name="upload"></wc-icon></span
>
<span class="button" @click=${this.#download}
><wc-icon name="download"></wc-icon></span
>
</aside>
<footer class="toolbar">
<span class="button" @click=${this.#rotate}>旋转90度</span>
<span class="button" @click=${this.#scale}>左右翻转</span>
<span class="button" @click=${this.#scale}>上下翻转</span>
<span class="button" @click=${_ => this.#filter('greyscale')}
>去色</span
>
<span class="button">增加水印</span>
</footer>
</div>
</main>
<div class="preview" ref="view" @click.self=${this.#closePreview}>
<img />
</div>
<div class="edit-panel">
<div class="workspace">
<img src="//static.reduzixun.com/r-time/common/2cc153c8018.webp" />
<div
ref="crop"
class="crop-area"
style=${cropStyle}
@mousedown.prevent=${this.#handleDrag}
>
<i data-id="1"></i>
<i data-id="2"></i>
<i data-id="3"></i>
<i data-id="4"></i>
</div>
</div>
<aside class="statusbar">
<div class="crop" @click=${this.#changeCropRatio}>
<span data-ratio="1">1:1</span>
<span data-ratio="1.3333">4:3</span>
<span data-ratio="0.75">3:4</span>
<span data-ratio="1.7778">16:9</span>
<span data-ratio="0.5625">9:16</span>
<span data-ratio="0">任意比例</span>
</div>
<fieldset>
<legend>原尺寸</legend>
<span>666x666</span>
</fieldset>
<fieldset>
<legend>原体积</legend>
<span>2.33MB</span>
</fieldset>
<fieldset>
<legend>现尺寸</legend>
<span>666x666</span>
</fieldset>
<fieldset>
<legend>现体积</legend>
<span>800KB</span>
</fieldset>
</aside>
<footer class="toolbar">
<span>旋转90度</span>
<span>左右翻转</span>
<span>上下翻转</span>
<span>去色</span>
<span>高斯模糊</span>
<span>增加水印</span>
</footer>
</div>
`
}
}