mirror of
https://github.com/RobbieHan/sandboxMP.git
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64 lines
2.7 KiB
Python
64 lines
2.7 KiB
Python
jQuery.fn.extend({
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uploadPreview: function (opts) {
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$(this).each(function(){
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var _self = this,
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_this = $(this);
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opts = jQuery.extend({
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Img: "ImgPr",
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Width: 100,
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Height: 100,
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ImgType: ["gif", "jpeg", "jpg", "bmp", "png"],
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Callback: function () {}
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}, opts || {});
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_self.getObjectURL = function (file) {
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var url = null;
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if (window.createObjectURL != undefined) {
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url = window.createObjectURL(file)
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} else if (window.URL != undefined) {
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url = window.URL.createObjectURL(file)
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} else if (window.webkitURL != undefined) {
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url = window.webkitURL.createObjectURL(file)
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}
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return url
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};
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_this.change(function () {
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if (this.value) {
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if (!RegExp("\.(" + opts.ImgType.join("|") + ")$", "i").test(this.value.toLowerCase())) {
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alert("选择文件错误,图片类型必须是" + opts.ImgType.join("，") + "中的一种");
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this.value = "";
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return false
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}
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var obj = _this.parent().siblings().children(opts.Img),
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imgBox = obj.parent("span"),
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imgBoxDom = imgBox[0];
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if ($.browser.msie) {
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try {
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obj.attr('src', _self.getObjectURL(this.files[0]))
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} catch (e) {
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var src = "";
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_self.select();
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if (top != self) {
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window.parent.document.body.focus()
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} else {
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_self.blur()
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}
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src = document.selection.createRange().text;
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document.selection.empty();
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obj.hide();
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imgBox.css({
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'filter': 'progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=scale)',
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'width': opts.Width + 'px',
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'height': opts.Height + 'px'
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});
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imgBoxDom.filters.item("DXImageTransform.Microsoft.AlphaImageLoader").src = src
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}
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} else {
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obj.attr('src', _self.getObjectURL(this.files[0]))
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}
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opts.Callback()
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}
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});
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});
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}
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});
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