Nitter - Image Hover

Hover over images to show the fullsize image beside the mouse cursor.
换行
// ==UserScript==
// @name         Nitter - Image Hover
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  Hover over images to show the fullsize image beside the mouse cursor.
// @author       Gondola#7671
// @match        https://nitter.net/*
// @require      http://code.jquery.com/jquery-3.4.1.min.js
// @icon         https://www.google.com/s2/favicons?domain=nitter.net
// @compatible   firefox
// @compatible   chrome
// @run-at       document-idle
// ==/UserScript==

$(document).ready(function(){

    /*---START Image Hover---*/
    var mouse_offset_x = 16;
    var mouse_offset_y = 16;
    var mouse_side = false;
    var currentMousePos = { x: -1, y: -1 };


    $("body").append("<img id='img_hover_container' style='float:left; position:absolute; max-width:200px; overflow:hidden; z-index:9999;' src=''>")


    $(".still-image").mouseenter(function()
    {
        $("#img_hover_container").attr("src","https://nitter.net" + $(this).attr('href'))
        $("#img_hover_container").css("max-height",$(window).height())
    })


    $(".still-image").mouseleave(function()
    {
        $("#img_hover_container").attr("src","")
    })


    //Update Mouse Position
    $(document).mousemove(function(event)
    {
        currentMousePos.x = event.pageX;
        currentMousePos.y = event.pageY;
        update_pos();
    });


    function update_pos()
    {
        //Mouse Horizontal
        if(currentMousePos.x > ($(window).width()/2))
        {
            mouse_side = true;
            mouse_offset_x = -$("#img_hover_container").width() - 16;
            $("#img_hover_container").css("max-width", currentMousePos.x - 16)
        }
        else
        {
            mouse_side = false;
            mouse_offset_x = 16;
            $("#img_hover_container").css("max-width", $(window).width()-currentMousePos.x)
        }

        //Mouse Vertical
        if(currentMousePos.y > ($(window).height() - $("#img_hover_container").height()))
        {
            mouse_offset_y = ($(window).height() - $("#img_hover_container").height()) + $(document).scrollTop();
        }
        else
        {
            mouse_offset_y = currentMousePos.y + 16;
        }

        $("#img_hover_container").offset({
            top: mouse_offset_y,
            left: currentMousePos.x + mouse_offset_x
        });
    }


    //Update image position periodically
    var intervalID = setInterval(function(){update_pos();}, 100);

    $("#img_hover_container").css("max-height", $(window).height())
    /*---END Image Hover---*/

});
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