1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
| {{/* Mermaid 图表支持 */}}
{{ if .Site.Params.mermaid.enable }}
<!-- Mermaid 配置信息 -->
<script id="mermaid-config" type="application/json">
{
"theme": "{{ .Site.Params.mermaid.theme | default "default" }}",
"showToggle": {{ if .Site.Params.mermaid.showToggle }}true{{ else }}true{{ end }}
}
</script>
<!-- Mermaid.js CDN -->
<script src="https://cdn.jsdelivr.net/npm/mermaid@10.6.1/dist/mermaid.min.js"></script>
<script>
document.addEventListener('DOMContentLoaded', function() {
// 读取配置
var configElement = document.getElementById('mermaid-config');
var config = JSON.parse(configElement.textContent);
// 初始化 Mermaid，改进文字显示
mermaid.initialize({
startOnLoad: false,
theme: config.theme,
themeVariables: {
fontFamily: 'inherit',
fontSize: '16px'
},
flowchart: {
htmlLabels: true,
curve: 'basis',
padding: 20
},
sequence: {
actorMargin: 50,
boxMargin: 10,
boxTextMargin: 5,
noteMargin: 10,
messageMargin: 35
}
});
// 查找所有可能的 Mermaid 代码块
var codeBlocks = document.querySelectorAll('code.language-mermaid, code.language-fallback, code[data-lang="mermaid"]');
var mermaidIndex = 0;
codeBlocks.forEach(function(codeBlock) {
var codeContent = codeBlock.textContent.trim();
// 检查是否是 Mermaid 代码（通过关键词判断）
var isMermaid = /^(graph|sequenceDiagram|gantt|stateDiagram|classDiagram|pie|erDiagram|gitgraph|journey|flowchart|mindmap)/.test(codeContent);
if (!isMermaid) return; // 如果不是 Mermaid 代码，跳过
var preElement = codeBlock.parentElement;
// 创建新的容器
var container = document.createElement('div');
container.className = 'mermaid-container';
// 创建左上角 ToggleSwitch 控制（如果启用）
if (config.showToggle) {
var toggleControl = document.createElement('div');
toggleControl.className = 'mermaid-toggle-control';
var toggleLabel = document.createElement('span');
toggleLabel.className = 'mermaid-toggle-label';
toggleLabel.textContent = '图表';
var toggleSwitch = document.createElement('div');
toggleSwitch.className = 'mermaid-toggle-switch';
toggleSwitch.title = '切换显示模式';
toggleControl.appendChild(toggleLabel);
toggleControl.appendChild(toggleSwitch);
container.appendChild(toggleControl);
}
// 创建右上角 Copy 按钮
var copyBtn = document.createElement('button');
copyBtn.className = 'mermaid-copy-btn';
copyBtn.textContent = 'Copy';
copyBtn.title = '复制';
container.appendChild(copyBtn);
// 创建右下角缩放控制
var zoomControls = document.createElement('div');
zoomControls.className = 'mermaid-zoom-controls';
var zoomOutBtn = document.createElement('button');
zoomOutBtn.className = 'mermaid-zoom-btn';
zoomOutBtn.textContent = '−';
zoomOutBtn.title = '缩小';
var zoomResetBtn = document.createElement('button');
zoomResetBtn.className = 'mermaid-zoom-btn';
zoomResetBtn.textContent = '⌂';
zoomResetBtn.title = '重置缩放和位置';
var zoomInBtn = document.createElement('button');
zoomInBtn.className = 'mermaid-zoom-btn';
zoomInBtn.textContent = '+';
zoomInBtn.title = '放大';
zoomControls.appendChild(zoomOutBtn);
zoomControls.appendChild(zoomResetBtn);
zoomControls.appendChild(zoomInBtn);
container.appendChild(zoomControls);
// 创建图表容器
var diagramDiv = document.createElement('div');
diagramDiv.className = 'mermaid-diagram zoomed';
diagramDiv.id = 'mermaid-diagram-' + mermaidIndex;
diagramDiv.style.setProperty('--mermaid-zoom', '1');
diagramDiv.style.setProperty('--mermaid-pan-x', '0px');
diagramDiv.style.setProperty('--mermaid-pan-y', '0px');
container.appendChild(diagramDiv);
// 创建代码容器（如果启用切换）
var codeDiv;
if (config.showToggle) {
codeDiv = document.createElement('div');
codeDiv.className = 'mermaid-code';
var newPre = document.createElement('pre');
var newCode = document.createElement('code');
newCode.className = 'language-mermaid';
newCode.textContent = codeContent;
newPre.appendChild(newCode);
codeDiv.appendChild(newPre);
container.appendChild(codeDiv);
}
// 替换原始的整个 highlight 容器
var highlightContainer = preElement.closest('.highlight') || preElement.closest('.chroma') || preElement;
highlightContainer.parentNode.replaceChild(container, highlightContainer);
// 渲染 Mermaid 图表
try {
mermaid.render('mermaid-diagram-' + mermaidIndex + '-svg', codeContent).then(function(result) {
diagramDiv.innerHTML = result.svg;
// 修复文字显示问题
var svg = diagramDiv.querySelector('svg');
if (svg) {
svg.style.maxWidth = 'none';
svg.style.width = 'auto';
svg.style.height = 'auto';
}
}).catch(function(error) {
console.error('Mermaid render error:', error);
diagramDiv.innerHTML = '<div class="mermaid-error">图表渲染失败: ' + error.message + '</div>';
});
} catch (error) {
console.error('Mermaid init error:', error);
diagramDiv.innerHTML = '<div class="mermaid-error">图表初始化失败</div>';
}
// 缩放和拖动功能
var currentZoom = 1;
var maxZoom = 3;
var minZoom = 0.5;
var zoomStep = 0.25;
var panX = 0;
var panY = 0;
var isDragging = false;
var lastMouseX = 0;
var lastMouseY = 0;
function updateTransform() {
diagramDiv.style.setProperty('--mermaid-zoom', currentZoom);
diagramDiv.style.setProperty('--mermaid-pan-x', panX + 'px');
diagramDiv.style.setProperty('--mermaid-pan-y', panY + 'px');
// 更新按钮状态
zoomOutBtn.disabled = currentZoom <= minZoom;
zoomInBtn.disabled = currentZoom >= maxZoom;
}
// 缩放功能
zoomInBtn.addEventListener('click', function() {
if (currentZoom < maxZoom) {
currentZoom = Math.min(maxZoom, currentZoom + zoomStep);
updateTransform();
}
});
zoomOutBtn.addEventListener('click', function() {
if (currentZoom > minZoom) {
currentZoom = Math.max(minZoom, currentZoom - zoomStep);
updateTransform();
}
});
zoomResetBtn.addEventListener('click', function() {
currentZoom = 1;
panX = 0;
panY = 0;
updateTransform();
});
// 拖动功能
diagramDiv.addEventListener('mousedown', function(e) {
if (currentZoom > 1) {
isDragging = true;
lastMouseX = e.clientX;
lastMouseY = e.clientY;
diagramDiv.classList.add('panning');
e.preventDefault();
}
});
document.addEventListener('mousemove', function(e) {
if (isDragging) {
var deltaX = e.clientX - lastMouseX;
var deltaY = e.clientY - lastMouseY;
panX += deltaX;
panY += deltaY;
lastMouseX = e.clientX;
lastMouseY = e.clientY;
updateTransform();
}
});
document.addEventListener('mouseup', function() {
if (isDragging) {
isDragging = false;
diagramDiv.classList.remove('panning');
}
});
// 初始化缩放状态
updateTransform();
// Copy 按钮功能
copyBtn.addEventListener('click', function() {
var isDiagramMode = diagramDiv.style.display !== 'none';
var textToCopy = codeContent;
navigator.clipboard.writeText(textToCopy).then(function() {
copyBtn.textContent = 'Copied!';
setTimeout(function() {
copyBtn.textContent = 'Copy';
}, 1000);
}).catch(function(err) {
console.error('Copy failed:', err);
alert('复制失败');
});
});
// 切换开关事件（如果启用）
if (config.showToggle) {
var isDiagramMode = true;
toggleSwitch.addEventListener('click', function() {
isDiagramMode = !isDiagramMode;
if (isDiagramMode) {
// 切换到图表模式
toggleSwitch.classList.remove('code-mode');
toggleLabel.textContent = '图表';
diagramDiv.style.display = 'flex';
codeDiv.style.display = 'none';
zoomControls.style.display = 'flex';
} else {
// 切换到源码模式
toggleSwitch.classList.add('code-mode');
toggleLabel.textContent = '源码';
diagramDiv.style.display = 'none';
codeDiv.style.display = 'block';
zoomControls.style.display = 'none';
}
// 保存用户偏好
localStorage.setItem('mermaid-view-preference', isDiagramMode ? 'diagram' : 'code');
});
// 恢复用户偏好
var savedPreference = localStorage.getItem('mermaid-view-preference');
if (savedPreference === 'code') {
toggleSwitch.click();
}
}
mermaidIndex++;
});
});
</script>
{{ end }}
|
