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feat: ペースト後にLGTMとLGTNを切り替えられるようにした #22

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merged 2 commits into from
Nov 23, 2023
Merged

feat: ペースト後にLGTMとLGTNを切り替えられるようにした #22

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27baa4f
feat: ペースト後にLGTMとLGTNを切り替えられるようにした
haruyan-hopemucci Nov 23, 2023
afdc39b
style: Prettierでフォーマット
haruyan-hopemucci Nov 23, 2023
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39 changes: 26 additions & 13 deletions docs/js/app.js
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Original file line number Diff line number Diff line change
@@ -1,31 +1,41 @@
'use strict'

$(function (){
$(function () {
var gCanvas = document.querySelector('canvas#output-image')
var gPastedImage = document.querySelector('img#pasted-image')
var gPastedImage = document.querySelector('img#img__lgtn')
const selectedOverlayImageValue = () => document.querySelector('input[name="chooseOverlay"]:checked').value

const setMessage = message => {
const elem = document.querySelector("#paste-area-message")
elem.textContent = message
}

document.addEventListener('paste', (event) => {
$('input[name="chooseOverlay"]').on('change', event => {
if (gPastedImage.src) {
setMessage(`${selectedOverlayImageValue()}画像を再生成しています...`)
redrawLgtnImage()
}
})

document.addEventListener('paste', (event) => {
event.preventDefault()

if (!event.clipboardData
|| !event.clipboardData.types
|| (event.clipboardData.types.length != 1)
|| (event.clipboardData.types[0] != "Files")) {
setMessage('ペーストされたデータが画像ではありません')
setMessage('ペーストされたデータが画像ではありません')
return true;
}

setMessage('LGTN画像を生成しています...')

generateLGTN(event.clipboardData.items[0])

})

const generateLGTN = async function(clipboardItem) {
const generateLGTN = async function (clipboardItem) {
const imageFile = clipboardItem.getAsFile();
const imgEl = document.querySelector("#pasted-image")
const fr = new FileReader();
Expand All @@ -38,9 +48,9 @@ $(function (){

}

const drawCanvas = function() {
const drawCanvas = function () {
const imgEl = document.querySelector("#pasted-image")
const selectedImageId = document.querySelector('input[name="chooseOverlay"]:checked').value
const selectedImageId = selectedOverlayImageValue()
const lgtnEl = document.querySelector(`#img__${selectedImageId}`)
const canvas = document.querySelector('#output-image')
const context = canvas.getContext('2d')
Expand All @@ -52,7 +62,7 @@ $(function (){
let drawY = 0
let drawWidth = canvas.width
let drawHeight = canvas.height
if(imgWidth > imgHeight) {
if (imgWidth > imgHeight) {
// 横の方が長い場合、y座標側を調整する
drawHeight = imgHeight * drawWidth / imgWidth
drawY = (canvas.height - drawHeight) / 2
Expand All @@ -70,18 +80,21 @@ $(function (){

const copyImageToClipboard = (canvas) => {
const pasteArea = document.querySelector('#paste-area')
canvas.toBlob( blob => {
const item = new ClipboardItem({ 'image/png': blob})
canvas.toBlob(blob => {
const item = new ClipboardItem({ 'image/png': blob })
navigator.clipboard.write([item])
.then( () => {
setMessage('クリップボードにLGTN画像がコピーされました！')
.then(() => {
setMessage(`クリップボードに${selectedOverlayImageValue()}画像がコピーされました！`)
})
.catch( ex => {
.catch(ex => {
console.error(ex)
setMessage('クリップボードの書き込み時にエラーが発生しました')
})
});
}

const redrawLgtnImage = () => {
drawCanvas()
}
})