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| //- 1. 数据预处理
-
var yearWeekData = {};
var yearsSet = new Set();
site.posts.forEach(function(post) {
var y = post.date.isoWeekYear();
var w = post.date.isoWeek();
yearsSet.add(y);
var key = y + '-' + w;
if (!yearWeekData[key]) {
yearWeekData[key] = { count: 0, posts: [] };
}
yearWeekData[key].count += 1;
yearWeekData[key].posts.push({
title: post.title,
link: url_for(post.path)
});
});
var allYears = Array.from(yearsSet).sort(function(a, b){ return b - a });
if(allYears.length === 0) allYears = [new Date().getFullYear()];
var maxYear = allYears[0];
var minYear = allYears[allYears.length - 1];
var displayYears = [];
for(var i = maxYear; i >= minYear; i--) {
displayYears.push(i);
}
//- 2. DOM 结构
#heatmap-container
#tooltip
//- 3. 样式表
style.
#heatmap-container {
width: 100%;
overflow: visible;
margin-top: 40px;
margin-bottom: 30px;
}
.heatmap-cell {
rx: 1.5px;
ry: 1.5px;
transition: opacity 0.2s ease;
stroke: none !important;
}
.heatmap-cell.has-post {
cursor: default; /* 改为默认箭头，因为现在不直接点击色块了 */
}
.heatmap-cell:hover {
opacity: 0.5;
}
.year-text, .legend-text, .legend-number, #tooltip {
font-family: 'Source Han Serif SC', 'Source Han Serif', 'Noto Serif CJK SC', serif;
}
.year-text {
font-size: 14px;
font-weight: bold;
fill: #888888;
}
.legend-text {
font-size: 14px;
fill: #333333;
font-weight: bold;
}
.legend-number {
font-size: 13px;
fill: #888888;
}
html[data-dark="true"] .legend-text { fill: #dddddd; }
html[data-dark="true"] .year-text,
html[data-dark="true"] .legend-number { fill: #777777; }
/* Tooltip 样式：删除了 pointer-events: none，加入隐藏机制 */
#tooltip {
position: absolute;
background-color: rgba(255, 255, 255, 0.98);
color: #222222;
border: 1px solid #e0e0e0;
border-radius: 2px;
padding: 10px 14px;
opacity: 0;
visibility: hidden; /* 默认隐藏，防止阻挡正常页面点击 */
font-size: 13px;
transform: translate(-50%, -100%);
line-height: 1.6;
z-index: 1000;
white-space: nowrap;
box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}
/* 优雅的链接样式 */
#tooltip a {
color: inherit;
text-decoration: none;
display: block;
border-bottom: 1px dashed rgba(136, 136, 136, 0.3);
padding: 2px 0;
transition: all 0.2s ease;
}
#tooltip a:last-child {
border-bottom: none;
}
#tooltip a:hover {
color: #000;
border-bottom: 1px solid #000;
}
html[data-dark="true"] #tooltip {
background-color: rgba(30, 30, 30, 0.98);
color: #dddddd;
border: 1px solid #444444;
box-shadow: 0 4px 12px rgba(0,0,0,0.6);
}
html[data-dark="true"] #tooltip a:hover {
color: #fff;
border-bottom: 1px solid #fff;
}
//- 4. 脚本逻辑
script(src="https://d3js.org/d3.v5.min.js")
script.
document.addEventListener("DOMContentLoaded", function () {
var data = !{JSON.stringify(yearWeekData)};
var displayYears = !{JSON.stringify(displayYears)};
var fullGrid = [];
displayYears.forEach(function(y, rowIdx) {
for(var w = 1; w <= 53; w++) {
var key = y + '-' + w;
var cellData = data[key] || { count: 0, posts: [] };
fullGrid.push({
year: y,
week: w,
row: rowIdx,
col: w - 1,
count: cellData.count,
posts: cellData.posts
});
}
});
var cellWidth = 10;
var cellHeight = 16.18;
var cellPaddingX = 3;
var cellPaddingY = 8;
var labelWidth = 50;
var topMargin = 45;
var width = labelWidth + (53 * (cellWidth + cellPaddingX));
var height = topMargin + (displayYears.length * (cellHeight + cellPaddingY));
var svg = d3.select("#heatmap-container").append("svg")
.attr("viewBox", "0 0 " + width + " " + height)
.attr("preserveAspectRatio", "xMidYMid meet");
function getFillColor(count, isDark) {
if (isDark) {
if (count === 0) return "#1e1e1e";
if (count === 1) return "#3a3a3a";
if (count === 2) return "#5c5c5c";
if (count === 3) return "#858585";
return "#b3b3b3";
} else {
if (count === 0) return "#ebebeb";
if (count === 1) return "#c2c2c2";
if (count === 2) return "#949494";
if (count === 3) return "#666666";
return "#333333";
}
}
svg.append("text")
.attr("class", "legend-text")
.attr("x", 0)
.attr("y", 16)
.text("Posts by week");
var legendCounts = [0, 1, 2, 3, 4];
var legendGroup = svg.append("g").attr("transform", "translate(125, 4)");
var legendSpacing = 42;
legendGroup.selectAll("rect")
.data(legendCounts)
.enter().append("rect")
.attr("class", "heatmap-cell")
.attr("width", cellWidth)
.attr("height", cellHeight)
.attr("x", function(d, i) { return i * legendSpacing; })
.attr("y", 0);
legendGroup.selectAll("text")
.data(["0", "1", "2", "3", "4+"])
.enter().append("text")
.attr("class", "legend-number")
.attr("x", function(d, i) { return i * legendSpacing + cellWidth + 6; })
.attr("y", 13)
.text(function(d) { return d; });
svg.selectAll(".year-text.axis")
.data(displayYears)
.enter().append("text")
.attr("class", "year-text axis")
.attr("x", 0)
.attr("y", function(d, i) {
return topMargin + i * (cellHeight + cellPaddingY) + cellHeight - 3;
})
.text(function(d) { return d; });
var gridGroup = svg.append("g")
.attr("transform", "translate(" + labelWidth + "," + topMargin + ")");
var cells = gridGroup.selectAll(".heatmap-cell.grid-cell")
.data(fullGrid)
.enter().append("rect")
.attr("class", function(d) { return "heatmap-cell grid-cell" + (d.count > 0 ? " has-post" : ""); })
.attr("width", cellWidth)
.attr("height", cellHeight)
.attr("x", function(d) { return d.col * (cellWidth + cellPaddingX); })
.attr("y", function(d) { return d.row * (cellHeight + cellPaddingY); });
// 【核心改进】：增加缓冲计时器，解决鼠标移动时的断层消失问题
var hideTimeout;
var tooltip = d3.select("#tooltip");
cells.on("mouseover", function(d) {
if (d.count > 0) {
clearTimeout(hideTimeout);
tooltip.style("visibility", "visible").transition().duration(200).style("opacity", 1);
// 渲染顶部周次说明，以及下方的文章可点击链接
var text = "<div style='margin-bottom: 8px; font-weight: bold; color: #888; font-size: 11px; border-bottom: 1px solid #eee; padding-bottom: 4px;'>" + d.year + "年 第" + d.week + "周 (" + d.count + "篇)</div>";
d.posts.forEach(function(p) {
text += "<a href='" + p.link + "'>" + p.title + "</a>";
});
tooltip.html(text);
var cellBox = this.getBoundingClientRect();
tooltip.style("left", (cellBox.left + cellBox.width / 2) + "px")
.style("top", (cellBox.top - 8 + window.scrollY) + "px");
}
})
.on("mouseout", function() {
// 离开色块时，给用户留出 250 毫秒的移动缓冲时间
hideTimeout = setTimeout(function() {
tooltip.transition().duration(200).style("opacity", 0).on("end", function() {
d3.select(this).style("visibility", "hidden");
});
}, 250);
});
// 为 Tooltip 本身增加事件，确保鼠标悬停在框内时不消失
tooltip.on("mouseover", function() {
clearTimeout(hideTimeout);
d3.select(this).style("opacity", 1).style("visibility", "visible");
})
.on("mouseout", function() {
// 鼠标离开悬浮框，彻底隐藏
hideTimeout = setTimeout(function() {
tooltip.transition().duration(200).style("opacity", 0).on("end", function() {
d3.select(this).style("visibility", "hidden");
});
}, 250);
});
function updateCellStyles() {
var isDarkTheme = document.querySelector('html').dataset.dark === 'true';
legendGroup.selectAll("rect").style("fill", function(d, i) {
return getFillColor(i, isDarkTheme);
});
cells.style("fill", function(d) {
return getFillColor(d.count, isDarkTheme);
});
// 暗黑模式下，Tooltip 内的分割线也要适应变暗
if(isDarkTheme) {
document.querySelectorAll('#tooltip div').forEach(el => el.style.borderBottom = '1px solid #444');
} else {
document.querySelectorAll('#tooltip div').forEach(el => el.style.borderBottom = '1px solid #eee');
}
}
updateCellStyles();
document.body.addEventListener("themechange", function () {
updateCellStyles();
});
});
|
