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!3549 feat(#I623FS): not work mouse wheel in the new version of ImageViewer
* fix: 修复 ImageViewer 鼠标滚轮不起作用问题
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@ -81,10 +81,9 @@ export class ImageViewer extends BlazorComponent {
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// 右旋转功能
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EventHandler.on(this._rotateRight, 'click', () => this._processImage(null, rotate => rotate + 90))
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// 鼠标放大缩小
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EventHandler.on(this._prevImg, 'mousewheel DOMMouseScroll', e => {
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const handlerWheel = e => {
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e.preventDefault()
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const wheel = e.originalEvent.wheelDelta || -e.originalEvent.detail
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const wheel = e.wheelDelta || -e.detail
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const delta = Math.max(-1, Math.min(1, wheel))
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if (delta > 0) {
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// 放大
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@ -93,7 +92,10 @@ export class ImageViewer extends BlazorComponent {
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// 缩小
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this._processImage(scale => Math.max(0.195, scale - 0.015))
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}
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})
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}
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// 鼠标放大缩小
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EventHandler.on(this._prevImg, 'mousewheel', handlerWheel)
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EventHandler.on(this._prevImg, 'DOMMouseScroll', handlerWheel)
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// 点击遮罩关闭功能
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EventHandler.on(this._mask, 'click', () => {
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@ -338,7 +340,8 @@ export class ImageViewer extends BlazorComponent {
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EventHandler.off(this._rotateRight, 'click')
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// 鼠标放大缩小
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EventHandler.off(this._prevImg, 'mousewheel DOMMouseScroll')
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EventHandler.off(this._prevImg, 'mousewheel')
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EventHandler.off(this._prevImg, 'DOMMouseScroll')
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// 触摸放大缩小
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EventHandler.off(this._prevImg, 'touchstart')
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