Get YouTube Thumbnail

Adds button to view largest thumbnail image for any video

目前為 2016-10-08 提交的版本，檢視最新版本。

安裝腳本 ?

Wrap lines

// ==UserScript==
// @name            Get YouTube Thumbnail
// @version         0.2
// @description     Adds button to view largest thumbnail image for any video
// @author          Drazen Bjelovuk
// @match           *://www.youtube.com/*
// @grant           none
// @run-at          document-end
// @namespace       https://gf.qytechs.cn/users/11679
// @contributionURL https://goo.gl/dYIygm
// ==/UserScript==

document.addEventListener('spfdone', function(e) {
    addThumbnailButton();
});

addThumbnailButton();

function addThumbnailButton() {
    var button = document.getElementById('viewThumbnailBtn');
    if (button)
        return;

    var container = document.getElementById('watch7-subscription-container');

    if (container) {
        button = document.createElement('button');
        button.id = 'viewThumbnailBtn';
        button.className = 'yt-uix-button yt-uix-button-default';
        button.style.cssText = 'height:24px; color:#666; font-weight:initial; margin-left:10px';
        button.textContent = 'View Thumbnail';
        button.onclick = function() {
            window.open(document.querySelector('link[itemprop="thumbnailUrl"]').href);
        };

        container.appendChild(button);
    }
    else if (window.location.href.indexOf('v=') > -1)
        setTimeout(addThumbnailButton, 500);
}

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