TweetDeck Image Assistant

Download/Share Images Faster

当前为 2017-05-19 提交的版本,查看 最新版本

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey 篡改猴Greasemonkey 油猴子Violentmonkey 暴力猴,才能安装此脚本。

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey 篡改猴,才能安装此脚本。

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey 篡改猴Violentmonkey 暴力猴,才能安装此脚本。

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey 篡改猴Userscripts ,才能安装此脚本。

您需要先安装一款用户脚本管理器扩展,例如 Tampermonkey 篡改猴,才能安装此脚本。

您需要先安装一款用户脚本管理器扩展后才能安装此脚本。

(我已经安装了用户脚本管理器,让我安装!)

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展,比如 Stylus,才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

您需要先安装一款用户样式管理器扩展后才能安装此样式。

(我已经安装了用户样式管理器,让我安装!)

// ==UserScript==
// @name         TweetDeck Image Assistant
// @namespace    http://ejew.in/
// @version      0.8
// @description  Download/Share Images Faster
// @author       EntranceJew
// @match        https://tweetdeck.twitter.com/*
// @require      https://cdn.rawgit.com/eligrey/FileSaver.js/5ed507ef8aa53d8ecfea96d96bc7214cd2476fd2/FileSaver.min.js
// @noframes
// @grant        none
// ==/UserScript==
/*
0.8 - added t.co link unmasking
0.7 - apparently getting gif sources works most reliably inside callbacks
0.6 - hotfix to prevent redundant page reloading with stream-media seek methods
0.5 - video links no longer destroy links, ctrl+click the timestamp to copy the tweet link, ctrl+click the link icon to prepare multi-image tweets for discord
0.4 - changed download icon, added copy links button, videos now don't flash their preview, videos no longer close your draft tweets panel
0.3 - gif support wasn't that hard
0.2 - removed debug prints, updated mimes, added video download link, instant-spice now grabs videos
0.1 - initial version
*/

(function() {
    'use strict';

    var tool_icon = '<li class="tweet-action-item pull-left margin-r--13 margin-l--1">';
    tool_icon += '<a class="js-show-tip tweet-action position-rel" href="#" rel="download" title="" data-original-title="Download">';
    tool_icon += '<i class="icon icon-attachment icon-attachment-toggle txt-center"></i> <span class="is-vishidden"> Download </span>';
    tool_icon += '</a> </li>';

    var link_icon = '<li class="tweet-action-item clipboard pull-left margin-r--13 margin-l--1">';
    link_icon += '<a class="js-show-tip tweet-action position-rel" href="#" rel="hotlink" title="" data-original-title="Hotlink">';
    link_icon += '<i class="icon icon-link icon-link-toggle txt-center"></i> <span class="is-vishidden"> Hotlink </span>';
    link_icon += '</a> </li>';

    var mime_db = {
        jpeg: "image/jpeg",
        jpg: "image/jpeg",
        gif: "image/gif",
        webp: "image/webp",
        mp4: "video/mp4",
        m3u8: "application/x-mpegURL",
        undefined: "text/plain"
    };

    function clipboard_data(html, el) {
        var tmpEl;
        if (typeof el !== "undefined") {
            // you may want some specific styling for your content - then provide a custom DOM node with classes, inline styles or whatever you want
            // just omit that argument for a default div container
            tmpEl = el;
        } else {
            tmpEl = document.createElement("div");

            // since we remove the element immediately we'd actually not have to style it - but IE 11 prompts us to confirm the clipboard interaction and until you click the confirm button, the element would show. so: still extra stuff for IE, as usual.
            tmpEl.style.opacity = 0;
            tmpEl.style.position = "absolute";
            tmpEl.style.pointerEvents = "none";
            tmpEl.style.zIndex = -1;
        }

        // fill it with your HTML
        tmpEl.innerHTML = html;

        // append the temporary node to the DOM
        document.body.appendChild(tmpEl);

        // select the newly added node
        var range = document.createRange();
        range.selectNode(tmpEl);
        window.getSelection().addRange(range);

        // copy
        document.execCommand("copy");

        // and remove the element immediately
        document.body.removeChild(tmpEl);
    }

    // http://stackoverflow.com/a/2091331
    function getQueryVariable(str, variable) {
        var query = str.substring(1);
        var vars = query.split('&');
        for (var i = 0; i < vars.length; i++) {
            var pair = vars[i].split('=');
            if (decodeURIComponent(pair[0]) == variable) {
                return decodeURIComponent(pair[1]);
            }
        }
        console.log('Query variable %s not found', variable);
    }

    function detect_mime(url){
        return mime_db[ /(?:\.([^.]+))?$/.exec(url)[1] ];
    }

    function get_img_data( url, on_load ) {
        var xhr = new XMLHttpRequest();
        xhr.open("GET", url);
        xhr.responseType = "blob";
        xhr.onload = on_load;
        xhr.send();
    }

    function download_now( url ){
        if( url.length ){
            get_img_data( url, function( e ){
                var img_name = url.substring( url.lastIndexOf('/')+1 );
                var the_blob = new Blob([this.response], {type: detect_mime(url)});
                saveAs( the_blob, img_name.replace(/:orig$/, "") );
            });
        }
    }

    function nice_url( url, replacement ){
        replacement = replacement || ":orig";
        var bg = url;
        bg = bg.replace('url(','').replace(')','').replace(/\"/gi, "");
        bg = bg.replace(/:thumb$/, "");
        bg = bg.replace(/:small$/, "");
        bg = bg.replace(/:medium$/, "");
        bg = bg.replace(/:large$/, "");
        return bg;
    }

    setInterval(function(){
        $('.stream-item:not([data-ejew])').each(function(){
            var grand_dad = $( this );

            /*
            // for appending to the dropdown menu if we wanted that
            var tool_bar = grand_dad.find('.js-dropdown-content > ul');
            tool_bar.prepend('<li class="is-selectable"><a href="#" data-action="ejew">Spice it up</a></li>');
            */

            // find all the images and store their links in data
            var sources = [];
            var media_type = 'idk';
            if( grand_dad.find('.is-video').length ){
                media_type = 'video';
                sources.push( function( e ){
                    var anchor = grand_dad.find('.js-media-image-link');
                    var o_target = anchor.attr('target');
                    var o_src = anchor.attr('src');
                    anchor.attr('target', '');
                    anchor.attr('src', '#');
                    anchor.click();

                    var embeds = $('.js-embeditem');
                    while( !embeds.length ){
                        embeds = $('.js-embeditem');
                    }

                    var vid_url = '';
                    embeds.each(function(){
                        var iframe_src = $( this ).find( 'iframe' ).attr('src');
                        vid_url = getQueryVariable( iframe_src, 'video_url' );
                        $('.mdl-dismiss .icon-close').click();
                    });

                    anchor.attr('target', o_target);
                    anchor.attr('src', o_src);

                    if( vid_url.length ){
                        return vid_url;
                    }
                });
            } else if( grand_dad.find('.is-gif').length ){
                media_type = 'gif';
                sources.push( function(){
                    return grand_dad.find('video.js-media-gif').attr('src');
                });
            } else {
                grand_dad.find('.js-media-image-link, .js-media .media-image').each( function(i, el){
                    sources.push( nice_url( $( el ).css('background-image'), ":orig" ) );
                });
                if( sources.length ){
                    media_type = 'image';
                }
            }
            var orig_link = grand_dad.find("a.txt-small.no-wrap[rel=\"url\"]");
            orig_link.on('click', function(e){
                if( e.ctrlKey ){
                    e.preventDefault();
                    clipboard_data( $( this ).attr("href") );
                }
            });
            grand_dad.data('ejew-sources', sources);
            grand_dad.data('direct-url', orig_link.attr("href"));

            var new_link = $( link_icon );
            new_link.on('click', function(e){
                var sources = grand_dad.data('ejew-sources');
                for( var i = 0; i < sources.length; i++ ){
                    if( typeof( sources[i] ) != "string" ){
                        sources[i] = sources[i]( this );
                    }
                }

                var the_url = grand_dad.data('direct-url');
                if( e.ctrlKey && sources.length > 1){
                    sources[0] = the_url;
                }

                if( sources.length ){
                    clipboard_data( sources.join("\n") );
                } else {
                    clipboard_data( the_url );
                }
            });

            // make an instance of the toolbar button
            var new_tool = $( tool_icon );
            new_tool.on('click', function(e){
                var sources = grand_dad.data('ejew-sources');
                for( var i = 0; i < sources.length; i++ ){
                    var source = sources[i];
                    if( typeof( source ) != "string" ){
                        source = source( this );
                    }

                    download_now( source );
                }
            });

            // attach
            var attachment_point = grand_dad.find('ul.tweet-actions > li:nth-last-child(2)');
            attachment_point.before( new_tool );
            attachment_point.before( new_link );

            // prevent loading up this element again
            grand_dad.attr('data-ejew', 'in');
        });

        // unmask t.co links
        $('a[href^="https://t.co/"]').each(function(){
            $( this ).attr('href', $( this ).data('full-url') );
        });

        // make it so that you can copy image source from previews
        $('img.media-img:not([data-ejew])').each(function(){
            $( this ).attr('src', nice_url( $( this ).attr('src') ) );
            $( this ).attr('data-ejew', 'in');
        });

        // provide a download source link in zoomable previews for videos
        $('.js-embeditem:not([data-ejew])').each(function(){
            var iframe_src = $( this ).find( 'iframe' ).attr('src');
            var vid_url = getQueryVariable( iframe_src, 'video_url' );
            var dl_link = $( '<a href="#">Download Source</a>' );
            dl_link.on('click', function(){
                download_now( vid_url );
            });
            $(".med-origlink").after( dl_link );
            $( this ).attr('data-ejew', 'in');
        });
    }, 300);
})();