无法创建适用于移动设备的自定义工具栏按钮
Cannot create custom toolbar button that works on mobile
我有简单的代码:
<button class="pswp__button" id="CustomButton" style="background:none;" title="Custom" onclick="CustomClicked()">
<img src="~/CustomImage.jpg"">
</button>
这在桌面浏览器上按预期工作。但是,当我切换到移动设备时,点击按钮时无法触发事件。我已经尝试附加我能想到的每个事件处理程序:点击、单击、触摸、触摸启动等,但我仍然无法在移动设备上触发任何事件。
如果我通过控制台调用点击事件,它也适用于移动设备,但我似乎无法让点击事件传播到该控件。我试过将其 zindex 设置为荒谬的值,但仍然没有成功。有人知道吗?
在网上搜索了一些解决方案后,他们似乎都有同样的问题。例如,这个也不会在移动设备上触发:
var openPhotoSwipe = function() {
var pswpElement = document.querySelectorAll('.pswp')[0];
// build items array
var items = [
{
src: 'https://farm2.staticflickr.com/1043/5186867718_06b2e9e551_b.jpg',
w: 964,
h: 1024
},
{
src: 'https://farm7.staticflickr.com/6175/6176698785_7dee72237e_b.jpg',
w: 1024,
h: 683
}
];
// define options (if needed)
var options = {
// history & focus options are disabled on CodePen
history: false,
focus: false,
showAnimationDuration: 0,
hideAnimationDuration: 0
};
var gallery = new PhotoSwipe( pswpElement, PhotoSwipeUI_Default, items, options);
gallery.init();
};
openPhotoSwipe();
$(document).on('click', '.pswp__button.pswp__button--close' , function(){
alert('d'); // did not fire?
});
document.getElementById('btn').onclick = openPhotoSwipe;
<button id="btn">Open PhotoSwipe</button>
<!-- Root element of PhotoSwipe. Must have class pswp. -->
<div class="pswp" tabindex="-1" role="dialog" aria-hidden="true">
<!-- Background of PhotoSwipe.
It's a separate element, as animating opacity is faster than rgba(). -->
<div class="pswp__bg"></div>
<!-- Slides wrapper with overflow:hidden. -->
<div class="pswp__scroll-wrap">
<!-- Container that holds slides. PhotoSwipe keeps only 3 slides in DOM to save memory. -->
<div class="pswp__container">
<!-- don't modify these 3 pswp__item elements, data is added later on -->
<div class="pswp__item"></div>
<div class="pswp__item"></div>
<div class="pswp__item"></div>
</div>
<!-- Default (PhotoSwipeUI_Default) interface on top of sliding area. Can be changed. -->
<div class="pswp__ui pswp__ui--hidden">
<div class="pswp__top-bar">
<!-- Controls are self-explanatory. Order can be changed. -->
<div class="pswp__counter"></div>
<button class="pswp__button pswp__button--close" title="Close (Esc)"></button>
<button class="pswp__button pswp__button--share" title="Share"></button>
<button class="pswp__button pswp__button--fs" title="Toggle fullscreen"></button>
<button class="pswp__button pswp__button--zoom" title="Zoom in/out"></button>
<!-- Preloader demo http://codepen.io/dimsemenov/pen/yyBWoR -->
<!-- element will get class pswp__preloader--active when preloader is running -->
<div class="pswp__preloader">
<div class="pswp__preloader__icn">
<div class="pswp__preloader__cut">
<div class="pswp__preloader__donut"></div>
</div>
</div>
</div>
</div>
<div class="pswp__share-modal pswp__share-modal--hidden pswp__single-tap">
<div class="pswp__share-tooltip"></div>
</div>
<button class="pswp__button pswp__button--arrow--left" title="Previous (arrow left)">
</button>
<button class="pswp__button pswp__button--arrow--right" title="Next (arrow right)">
</button>
<div class="pswp__caption">
<div class="pswp__caption__center"></div>
</div>
</div>
</div>
</div>
为了实现此功能,您必须编辑 hte photoswipe-ui-default.js 文件。
您的自定义按钮必须具有 class pswp__button--myCustomButtonName 以及 pswp__button.
<button class="pswp__button pswp__button--myCustomButtonName" id="CustomButton" style="background:none;" title="Custom" onclick="CustomClicked()">
<img src="~/CustomImage.jpg"">
在 photoswipe-ui-default.js 文件中,您会看到一个控件列表:
var _uiElements = [
{
name: 'caption',
option: 'captionEl',
onInit: function(el) {
_captionContainer = el;
}
},
{
name: 'myCustomButton',
option: 'customOptionName',
onTap:MyCustomButtonFunction
},
然后您必须将该按钮名称添加到选项中:
var options = {
history: false,
escKey: false,
closeOnScroll: false,
pinchToClose: false,
closeOnVerticalDrag: false,
customOptionName: true
};
使用 :before
为按钮应用额外的样式,或修改默认的 UI JS 文件,因此它也会注册点击图像。
默认情况下,它仅在目标元素(在您的例子中是图像)上注册点击,并且不会在 DOM 树中向上传播。
找到了一种不涉及更改库的方法。只是点击处理的编写方式有点不幸,因为您不能使用 preventDefault 或 stopPropagation 来取消处理程序。
// Disable hiding controls when tapping action buttons
pswp.framework.bind(pswp.scrollWrap, 'pswpTap', (e) => {
let el = e.target || e.srcElement;
while ((el = el.parentElement) && !el.classList.contains('action'));
if (el) {
pswp.options.tapToToggleControls = false;
setTimeout(() => {
pswp.options.tapToToggleControls = true;
}, 50);
}
});
我有简单的代码:
<button class="pswp__button" id="CustomButton" style="background:none;" title="Custom" onclick="CustomClicked()">
<img src="~/CustomImage.jpg"">
</button>
这在桌面浏览器上按预期工作。但是,当我切换到移动设备时,点击按钮时无法触发事件。我已经尝试附加我能想到的每个事件处理程序:点击、单击、触摸、触摸启动等,但我仍然无法在移动设备上触发任何事件。
如果我通过控制台调用点击事件,它也适用于移动设备,但我似乎无法让点击事件传播到该控件。我试过将其 zindex 设置为荒谬的值,但仍然没有成功。有人知道吗?
在网上搜索了一些解决方案后,他们似乎都有同样的问题。例如,这个也不会在移动设备上触发:
var openPhotoSwipe = function() {
var pswpElement = document.querySelectorAll('.pswp')[0];
// build items array
var items = [
{
src: 'https://farm2.staticflickr.com/1043/5186867718_06b2e9e551_b.jpg',
w: 964,
h: 1024
},
{
src: 'https://farm7.staticflickr.com/6175/6176698785_7dee72237e_b.jpg',
w: 1024,
h: 683
}
];
// define options (if needed)
var options = {
// history & focus options are disabled on CodePen
history: false,
focus: false,
showAnimationDuration: 0,
hideAnimationDuration: 0
};
var gallery = new PhotoSwipe( pswpElement, PhotoSwipeUI_Default, items, options);
gallery.init();
};
openPhotoSwipe();
$(document).on('click', '.pswp__button.pswp__button--close' , function(){
alert('d'); // did not fire?
});
document.getElementById('btn').onclick = openPhotoSwipe;
<button id="btn">Open PhotoSwipe</button>
<!-- Root element of PhotoSwipe. Must have class pswp. -->
<div class="pswp" tabindex="-1" role="dialog" aria-hidden="true">
<!-- Background of PhotoSwipe.
It's a separate element, as animating opacity is faster than rgba(). -->
<div class="pswp__bg"></div>
<!-- Slides wrapper with overflow:hidden. -->
<div class="pswp__scroll-wrap">
<!-- Container that holds slides. PhotoSwipe keeps only 3 slides in DOM to save memory. -->
<div class="pswp__container">
<!-- don't modify these 3 pswp__item elements, data is added later on -->
<div class="pswp__item"></div>
<div class="pswp__item"></div>
<div class="pswp__item"></div>
</div>
<!-- Default (PhotoSwipeUI_Default) interface on top of sliding area. Can be changed. -->
<div class="pswp__ui pswp__ui--hidden">
<div class="pswp__top-bar">
<!-- Controls are self-explanatory. Order can be changed. -->
<div class="pswp__counter"></div>
<button class="pswp__button pswp__button--close" title="Close (Esc)"></button>
<button class="pswp__button pswp__button--share" title="Share"></button>
<button class="pswp__button pswp__button--fs" title="Toggle fullscreen"></button>
<button class="pswp__button pswp__button--zoom" title="Zoom in/out"></button>
<!-- Preloader demo http://codepen.io/dimsemenov/pen/yyBWoR -->
<!-- element will get class pswp__preloader--active when preloader is running -->
<div class="pswp__preloader">
<div class="pswp__preloader__icn">
<div class="pswp__preloader__cut">
<div class="pswp__preloader__donut"></div>
</div>
</div>
</div>
</div>
<div class="pswp__share-modal pswp__share-modal--hidden pswp__single-tap">
<div class="pswp__share-tooltip"></div>
</div>
<button class="pswp__button pswp__button--arrow--left" title="Previous (arrow left)">
</button>
<button class="pswp__button pswp__button--arrow--right" title="Next (arrow right)">
</button>
<div class="pswp__caption">
<div class="pswp__caption__center"></div>
</div>
</div>
</div>
</div>
为了实现此功能,您必须编辑 hte photoswipe-ui-default.js 文件。
您的自定义按钮必须具有 class pswp__button--myCustomButtonName 以及 pswp__button.
<button class="pswp__button pswp__button--myCustomButtonName" id="CustomButton" style="background:none;" title="Custom" onclick="CustomClicked()">
<img src="~/CustomImage.jpg"">
在 photoswipe-ui-default.js 文件中,您会看到一个控件列表:
var _uiElements = [
{
name: 'caption',
option: 'captionEl',
onInit: function(el) {
_captionContainer = el;
}
},
{
name: 'myCustomButton',
option: 'customOptionName',
onTap:MyCustomButtonFunction
},
然后您必须将该按钮名称添加到选项中:
var options = {
history: false,
escKey: false,
closeOnScroll: false,
pinchToClose: false,
closeOnVerticalDrag: false,
customOptionName: true
};
使用 :before
为按钮应用额外的样式,或修改默认的 UI JS 文件,因此它也会注册点击图像。
默认情况下,它仅在目标元素(在您的例子中是图像)上注册点击,并且不会在 DOM 树中向上传播。
找到了一种不涉及更改库的方法。只是点击处理的编写方式有点不幸,因为您不能使用 preventDefault 或 stopPropagation 来取消处理程序。
// Disable hiding controls when tapping action buttons
pswp.framework.bind(pswp.scrollWrap, 'pswpTap', (e) => {
let el = e.target || e.srcElement;
while ((el = el.parentElement) && !el.classList.contains('action'));
if (el) {
pswp.options.tapToToggleControls = false;
setTimeout(() => {
pswp.options.tapToToggleControls = true;
}, 50);
}
});