plupload - 限制所选文件的数量

发布于 2024-12-04 17:39:06 字数 2803 浏览 2 评论 0原文

这是代码的一部分:

inprogress = false;

function getid(id) {
    return document.getElementById(id); 
}

var uploader = new plupload.Uploader({
    runtimes : 'gears,html5,flash,silverlight,browserplus',
    browse_button : 'link-browse',
    max_file_size : '100mb',
    url : 'site/upload/process.php?dir=<?php echo $uplid; ?>',
    flash_swf_url : 'site/upload/plupload.flash.swf',
    silverlight_xap_url : 'site/upload/plupload.silverlight.xap',
});
uploader.bind('Init', function(up, params) {
    //$('filelist').innerHTML = "<div>Current runtime: " + params.runtime + "</div>";
});
uploader.bind('FilesAdded', function(up, files) {
    if(uploader.files.length <= 0){
        var element = document.getElementById('standby');
        element.parentNode.removeChild(element);
    }
    if(up.files.length > 4 || uploader.files.length > 4)
    {
        alert('Only 5 files per upload !');

        return false;
    }
    for (var i in files) {
        getid('filelist').innerHTML += '<div class="item" id="' + files[i].id + '"><div class="name">' + files[i].name + '</div><div onclick="removeme(\''+files[i].id+'\')" id="remove-'+files[i].id+'" class="remove"></div><div class="size">[ ' + plupload.formatSize(files[i].size) + ' ]</div><div class="percent"></div></div>';
    }
});
uploader.bind('UploadFile', function(up, file) {
    getid('submit-form').innerHTML += '<input type="hidden" name="file-' + file.id + '" value="' + file.name + '" />';
});
uploader.bind('UploadProgress', function(up, file) {
    getid(file.id).getElementsByTagName('div')[3].innerHTML = '<span>' + file.percent + "%</span>";
});
uploader.bind('StateChanged', function(uploader) {
        if (uploader.files.length === (uploader.total.uploaded + uploader.total.failed)) {
         window.location = "./dl/<?php echo $uplid; ?>"
        }
    });
getid('link-upload').onclick = function() {
    if(uploader.files.length < 1){
        alert('Please select files first.');
        return false;
    }
    inprogress = true;
    uploader.start();
    return false;
};
uploader.init();
function removeme(id){
    if(inprogress) return false;
    if(uploader.files.length == 1)
    getid('filelist').innerHTML += '<div id="standby"></div>';

    var element = document.getElementById(id);
    element.parentNode.removeChild(element);

    var toremove = '';

    for(var i in uploader.files){
        if(uploader.files[i].id === id){
            toremove = i;
        }
    }
    uploader.files.splice(toremove, 1);
}

我可以限制上传的文件, 如果我选择了 4 个文件,并且我再选择 5 个 ->它将显示错误,

但如果我首先选择 14 个文件,它们将显示在“文件列表”中。

如何限制这一点,或者在哪里放置“return false”;

感谢您的帮助:)

This is the part of code:

inprogress = false;

function getid(id) {
    return document.getElementById(id); 
}

var uploader = new plupload.Uploader({
    runtimes : 'gears,html5,flash,silverlight,browserplus',
    browse_button : 'link-browse',
    max_file_size : '100mb',
    url : 'site/upload/process.php?dir=<?php echo $uplid; ?>',
    flash_swf_url : 'site/upload/plupload.flash.swf',
    silverlight_xap_url : 'site/upload/plupload.silverlight.xap',
});
uploader.bind('Init', function(up, params) {
    //$('filelist').innerHTML = "<div>Current runtime: " + params.runtime + "</div>";
});
uploader.bind('FilesAdded', function(up, files) {
    if(uploader.files.length <= 0){
        var element = document.getElementById('standby');
        element.parentNode.removeChild(element);
    }
    if(up.files.length > 4 || uploader.files.length > 4)
    {
        alert('Only 5 files per upload !');

        return false;
    }
    for (var i in files) {
        getid('filelist').innerHTML += '<div class="item" id="' + files[i].id + '"><div class="name">' + files[i].name + '</div><div onclick="removeme(\''+files[i].id+'\')" id="remove-'+files[i].id+'" class="remove"></div><div class="size">[ ' + plupload.formatSize(files[i].size) + ' ]</div><div class="percent"></div></div>';
    }
});
uploader.bind('UploadFile', function(up, file) {
    getid('submit-form').innerHTML += '<input type="hidden" name="file-' + file.id + '" value="' + file.name + '" />';
});
uploader.bind('UploadProgress', function(up, file) {
    getid(file.id).getElementsByTagName('div')[3].innerHTML = '<span>' + file.percent + "%</span>";
});
uploader.bind('StateChanged', function(uploader) {
        if (uploader.files.length === (uploader.total.uploaded + uploader.total.failed)) {
         window.location = "./dl/<?php echo $uplid; ?>"
        }
    });
getid('link-upload').onclick = function() {
    if(uploader.files.length < 1){
        alert('Please select files first.');
        return false;
    }
    inprogress = true;
    uploader.start();
    return false;
};
uploader.init();
function removeme(id){
    if(inprogress) return false;
    if(uploader.files.length == 1)
    getid('filelist').innerHTML += '<div id="standby"></div>';

    var element = document.getElementById(id);
    element.parentNode.removeChild(element);

    var toremove = '';

    for(var i in uploader.files){
        if(uploader.files[i].id === id){
            toremove = i;
        }
    }
    uploader.files.splice(toremove, 1);
}

I can limit of files being uploaded,
And if I have 4 files selected, and I select 5 more -> it will show error

but if I at first select for example 14 files, they will be shown in "filelist".

How to limit that, or where to put "return false";

Thanks for any help :)

如果你对这篇内容有疑问,欢迎到本站社区发帖提问 参与讨论,获取更多帮助,或者扫码二维码加入 Web 技术交流群。

扫码二维码加入Web技术交流群

发布评论

需要 登录 才能够评论, 你可以免费 注册 一个本站的账号。

评论(4

〆一缕阳光ご 2024-12-11 17:39:06

- 为Pupload v2.0工作

$("#uploader").pluploadQueue({
    runtimes: 'html5,html4',
    url: 'upload.php',
    max_file_size: '2mb',
    unique_names: false,
    rename: true,
    prevent_duplicates: true,
    init : {
        FilesAdded: function(up, files) {
          var max_files = 12;
          plupload.each(files, function(file) {
            if (up.files.length > max_files) {
              alert('You are allowed to add only ' + max_files + ' files.');
              up.removeFile(file);
            }
          });
          if (up.files.length >= max_files) {
            $('#pickfiles').hide('slow');
          }
        },
        FilesRemoved: function(up, files) {
          if (up.files.length < max_files) {
            $('#pickfiles').fadeIn('slow');
          }
        }
      },
    resize : {width : 700, height : 700, quality : 90},
    filters: [
        {
            title: "Image files",
            extensions: "jpg,jpeg,gif,png"
        }
    ]
});

- Working for Pupload v2.0

$("#uploader").pluploadQueue({
    runtimes: 'html5,html4',
    url: 'upload.php',
    max_file_size: '2mb',
    unique_names: false,
    rename: true,
    prevent_duplicates: true,
    init : {
        FilesAdded: function(up, files) {
          var max_files = 12;
          plupload.each(files, function(file) {
            if (up.files.length > max_files) {
              alert('You are allowed to add only ' + max_files + ' files.');
              up.removeFile(file);
            }
          });
          if (up.files.length >= max_files) {
            $('#pickfiles').hide('slow');
          }
        },
        FilesRemoved: function(up, files) {
          if (up.files.length < max_files) {
            $('#pickfiles').fadeIn('slow');
          }
        }
      },
    resize : {width : 700, height : 700, quality : 90},
    filters: [
        {
            title: "Image files",
            extensions: "jpg,jpeg,gif,png"
        }
    ]
});
守望孤独 2024-12-11 17:39:06

if(up.files.length > 4 || uploader.files.length > 4) 展开为 if(up.files.length > 4 || uploader.files.length > 4 || 文件长度 > 4)。

Expand if(up.files.length > 4 || uploader.files.length > 4) to if(up.files.length > 4 || uploader.files.length > 4 || files.length > 4).

小草泠泠 2024-12-11 17:39:06

只需使用 max_file_count: 4 选项来限制上传的文件数量

Just use max_file_count: 4 option to limit amount files to upload

东京女 2024-12-11 17:39:06

回复 Rob W 的回答, upuploader 是相同的,因为它是 uploader 实例,因此是多余的;检查 (uploader.files.length + files.length) > 也会很有用。 4,以便在考虑到已经“注册”的文件时检查几个传入文件是否会超过 4(例如,有人添加 2 个文件,然后添加 3 个文件)。

所以总而言之,我会推荐

if(uploader.files.length > 4 || files.length > 4 || (uploader.files.length + files.length) > 4) {

in reply to Rob W's answer, up and uploader is the same since it's the uploader instance, hence redundant; and it would be useful to also check (uploader.files.length + files.length) > 4 in order to check if a couple of incoming files would exceed the 4 when taking the already "registered" files into account (e.g. somebody adds 2 files and then 3 files subsequently).

So in conclusion, I would recommend

if(uploader.files.length > 4 || files.length > 4 || (uploader.files.length + files.length) > 4) {
~没有更多了~
我们使用 Cookies 和其他技术来定制您的体验包括您的登录状态等。通过阅读我们的 隐私政策 了解更多相关信息。 单击 接受 或继续使用网站,即表示您同意使用 Cookies 和您的相关数据。
原文