回答編集履歴
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追記
answer
CHANGED
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@@ -49,4 +49,72 @@
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49
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}));
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});
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</script>
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```
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## 追記
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> この処理は２回までとかもできるのでしょうか？
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> １を押し１個表示され５を押し５個表示され ３回目以降は押しても表示できなくなる感じです。
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ボタンを押した回数をどこかに保存しておいて、画像追加処理の部分で判定してください。
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- [デモ - JSFiddle](https://jsfiddle.net/v6qtpkLb/)
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``` html
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<div id="basket" data-image-add-request-count="0"></div>
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<template id="image-template">
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<img src="https://via.placeholder.com/512/999999/333333/?text=Ringo" style="width: 40px; height: 40px;">
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</template>
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<button id="button1">
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- 1 -
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</button>
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<button id="button5">
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- 5 -
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</button>
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<script>
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const basket = document.querySelector("#basket");
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const imageTemplate = document.querySelector("#image-template");
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const button1 = document.querySelector("#button1");
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const button5 = document.querySelector("#button5");
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const maxImageAddRequestCount = 2;
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basket.addEventListener("App.ImageAddRequest", (event) => {
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const imageAddRequestCount = Number.parseInt(basket.dataset.imageAddRequestCount);
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if (imageAddRequestCount >= maxImageAddRequestCount) {
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return;
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}
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const imageCount = event.detail.imageCount ?? 0;
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for (let count = 0; count < imageCount; count++) {
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const image = imageTemplate.content.cloneNode(true);
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basket.appendChild(image);
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}
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basket.dataset.imageAddRequestCount = imageAddRequestCount + 1;
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});
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button1.addEventListener("click", (event) => {
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basket.dispatchEvent(new CustomEvent("App.ImageAddRequest", {
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detail: {
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imageCount: 1,
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},
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}));
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});
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button5.addEventListener("click", (event) => {
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basket.dispatchEvent(new CustomEvent("App.ImageAddRequest", {
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detail: {
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imageCount: 5,
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},
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}));
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});
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</script>
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```
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