File size: 13,834 Bytes
fc93158
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
import { FileDiff, preloadHighlighter } from "@pierre/diffs";
import type {
  FileContents,
  FileDiffMetadata,
  FileDiffOptions,
  SupportedLanguages,
} from "@pierre/diffs";
import type { DiffViewerPayload, DiffLayout, DiffTheme } from "./types.js";
import { parseViewerPayloadJson } from "./viewer-payload.js";

type ViewerState = {
  theme: DiffTheme;
  layout: DiffLayout;
  backgroundEnabled: boolean;
  wrapEnabled: boolean;
};

type DiffController = {
  payload: DiffViewerPayload;
  diff: FileDiff;
};

const controllers: DiffController[] = [];

const viewerState: ViewerState = {
  theme: "dark",
  layout: "unified",
  backgroundEnabled: true,
  wrapEnabled: true,
};

function parsePayload(element: HTMLScriptElement): DiffViewerPayload {
  const raw = element.textContent?.trim();
  if (!raw) {
    throw new Error("Diff payload was empty.");
  }
  return parseViewerPayloadJson(raw);
}

function getCards(): Array<{ host: HTMLElement; payload: DiffViewerPayload }> {
  const cards: Array<{ host: HTMLElement; payload: DiffViewerPayload }> = [];
  for (const card of document.querySelectorAll<HTMLElement>(".oc-diff-card")) {
    const host = card.querySelector<HTMLElement>("[data-openclaw-diff-host]");
    const payloadNode = card.querySelector<HTMLScriptElement>("[data-openclaw-diff-payload]");
    if (!host || !payloadNode) {
      continue;
    }

    try {
      cards.push({ host, payload: parsePayload(payloadNode) });
    } catch (error) {
      console.warn("Skipping invalid diff payload", error);
    }
  }
  return cards;
}

function ensureShadowRoot(host: HTMLElement): void {
  if (host.shadowRoot) {
    return;
  }
  const template = host.querySelector<HTMLTemplateElement>(
    ":scope > template[shadowrootmode='open']",
  );
  if (!template) {
    return;
  }
  const shadowRoot = host.attachShadow({ mode: "open" });
  shadowRoot.append(template.content.cloneNode(true));
  template.remove();
}

function getHydrateProps(payload: DiffViewerPayload): {
  fileDiff?: FileDiffMetadata;
  oldFile?: FileContents;
  newFile?: FileContents;
} {
  if (payload.fileDiff) {
    return { fileDiff: payload.fileDiff };
  }
  return {
    oldFile: payload.oldFile,
    newFile: payload.newFile,
  };
}

function createToolbarButton(params: {
  title: string;
  active: boolean;
  iconMarkup: string;
  onClick: () => void;
}): HTMLButtonElement {
  const button = document.createElement("button");
  button.type = "button";
  button.className = "oc-diff-toolbar-button";
  button.dataset.active = String(params.active);
  button.title = params.title;
  button.setAttribute("aria-label", params.title);
  button.innerHTML = params.iconMarkup;
  applyToolbarButtonStyles(button, params.active);
  button.addEventListener("click", (event) => {
    event.preventDefault();
    params.onClick();
  });
  return button;
}

function applyToolbarButtonStyles(button: HTMLButtonElement, active: boolean): void {
  button.style.color =
    viewerState.theme === "dark" ? "rgba(226, 232, 240, 0.74)" : "rgba(15, 23, 42, 0.52)";
  button.dataset.active = String(active);
}

function splitIcon(): string {
  return `<svg viewBox="0 0 16 16" aria-hidden="true">
    <path fill="currentColor" d="M14 0H8.5v16H14a2 2 0 0 0 2-2V2a2 2 0 0 0-2-2m-1.5 6.5v1h1a.5.5 0 0 1 0 1h-1v1a.5.5 0 0 1-1 0v-1h-1a.5.5 0 0 1 0-1h1v-1a.5.5 0 0 1 1 0"></path>
    <path fill="currentColor" opacity="0.5" d="M2 0a2 2 0 0 0-2 2v12a2 2 0 0 0 2 2h5.5V0zm.5 7.5h3a.5.5 0 0 1 0 1h-3a.5.5 0 0 1 0-1"></path>
  </svg>`;
}

function unifiedIcon(): string {
  return `<svg viewBox="0 0 16 16" aria-hidden="true">
    <path fill="currentColor" fill-rule="evenodd" d="M16 14a2 2 0 0 1-2 2H2a2 2 0 0 1-2-2V8.5h16zm-8-4a.5.5 0 0 0-.5.5v1h-1a.5.5 0 0 0 0 1h1v1a.5.5 0 0 0 1 0v-1h1a.5.5 0 0 0 0-1h-1v-1A.5.5 0 0 0 8 10" clip-rule="evenodd"></path>
    <path fill="currentColor" fill-rule="evenodd" opacity="0.5" d="M14 0a2 2 0 0 1 2 2v5.5H0V2a2 2 0 0 1 2-2zM6.5 3.5a.5.5 0 0 0 0 1h3a.5.5 0 0 0 0-1z" clip-rule="evenodd"></path>
  </svg>`;
}

function wrapIcon(active: boolean): string {
  return `<svg viewBox="0 0 16 16" aria-hidden="true">
    <path fill="currentColor" fill-rule="evenodd" clip-rule="evenodd" opacity="${active ? "1" : "0.85"}" d="M3.868 3.449a1.21 1.21 0 0 0-.473-.329c-.274-.111-.623-.15-1.055-.076a3.5 3.5 0 0 0-.71.208c-.082.035-.16.077-.235.125l-.043.03v1.056l.168-.139c.15-.124.326-.225.527-.303.196-.074.4-.113.604-.113.188 0 .33.051.431.157.087.095.137.248.147.456l-.962.144c-.219.03-.41.086-.57.166a1.245 1.245 0 0 0-.398.311c-.103.125-.181.27-.229.426-.097.33-.093.68.011 1.008a1.096 1.096 0 0 0 .638.67c.155.063.328.093.528.093a1.25 1.25 0 0 0 .978-.441v.345h1.007V4.65c0-.255-.03-.484-.089-.681a1.423 1.423 0 0 0-.275-.52zm-.636 1.896v.236c0 .119-.018.231-.055.341a.745.745 0 0 1-.377.447.694.694 0 0 1-.512.027.454.454 0 0 1-.156-.094.389.389 0 0 1-.094-.139.474.474 0 0 1-.035-.186c0-.077.01-.147.024-.212a.33.33 0 0 1 .078-.141.436.436 0 0 1 .161-.109 1.3 1.3 0 0 1 .305-.073l.661-.097zm5.051-1.067a2.253 2.253 0 0 0-.244-.656 1.354 1.354 0 0 0-.436-.459 1.165 1.165 0 0 0-.642-.173 1.136 1.136 0 0 0-.69.223 1.33 1.33 0 0 0-.264.266V1H5.09v6.224h.918v-.281c.123.152.287.266.472.328.098.032.208.047.33.047.255 0 .483-.06.677-.177.192-.115.355-.278.486-.486a2.29 2.29 0 0 0 .293-.718 3.87 3.87 0 0 0 .096-.886 3.714 3.714 0 0 0-.078-.773zm-.86.758c0 .232-.02.439-.06.613-.036.172-.09.315-.159.424a.639.639 0 0 1-.233.237.582.582 0 0 1-.565.014.683.683 0 0 1-.21-.183.925.925 0 0 1-.142-.283A1.187 1.187 0 0 1 6 5.5v-.517c0-.164.02-.314.06-.447.036-.132.087-.242.156-.336a.668.668 0 0 1 .228-.208.584.584 0 0 1 .29-.071.554.554 0 0 1 .496.279c.063.099.108.214.143.354.031.143.05.306.05.482zM2.407 9.9a.913.913 0 0 1 .316-.239c.218-.1.547-.105.766-.018.104.042.204.1.32.184l.33.26V8.945l-.097-.062a1.932 1.932 0 0 0-.905-.215c-.308 0-.593.057-.846.168-.25.11-.467.27-.647.475-.18.21-.318.453-.403.717-.09.272-.137.57-.137.895 0 .289.043.561.13.808.086.249.211.471.373.652.161.185.361.333.597.441.232.104.493.155.778.155.233 0 .434-.028.613-.084.165-.05.322-.123.466-.217l.078-.061v-.889l-.2.095a.4.4 0 0 1-.076.026c-.05.017-.099.035-.128.049-.036.023-.227.09-.227.09-.06.024-.14.043-.218.059a.977.977 0 0 1-.599-.057.827.827 0 0 1-.306-.225 1.088 1.088 0 0 1-.205-.376 1.728 1.728 0 0 1-.076-.529c0-.21.028-.399.083-.56.054-.158.13-.294.22-.4zM14 6h-4V5h4.5l.5.5v6l-.5.5H7.879l2.07 2.071-.706.707-2.89-2.889v-.707l2.89-2.89L9.95 9l-2 2H14V6z"></path>
  </svg>`;
}

function backgroundIcon(active: boolean): string {
  if (active) {
    return `<svg viewBox="0 0 16 16" aria-hidden="true">
      <path fill="currentColor" opacity="0.5" d="M0 2.25a.75.75 0 0 1 .75-.75h10.5a.75.75 0 0 1 0 1.5H.75A.75.75 0 0 1 0 2.25"></path>
      <path fill="currentColor" fill-rule="evenodd" d="M15 5a1 1 0 0 1 1 1v5a1 1 0 0 1-1 1H1a1 1 0 0 1-1-1V6a1 1 0 0 1 1-1zM2.5 9a.5.5 0 0 0 0 1h8a.5.5 0 0 0 0-1zm0-2a.5.5 0 0 0 0 1h11a.5.5 0 0 0 0-1z" clip-rule="evenodd"></path>
      <path fill="currentColor" opacity="0.5" d="M0 14.75A.75.75 0 0 1 .75 14h5.5a.75.75 0 0 1 0 1.5H.75a.75.75 0 0 1-.75-.75"></path>
    </svg>`;
  }
  return `<svg viewBox="0 0 16 16" aria-hidden="true">
    <path fill="currentColor" opacity="0.34" d="M0 2.25a.75.75 0 0 1 .75-.75h10.5a.75.75 0 0 1 0 1.5H.75A.75.75 0 0 1 0 2.25"></path>
    <path fill="currentColor" opacity="0.34" fill-rule="evenodd" d="M15 5a1 1 0 0 1 1 1v5a1 1 0 0 1-1 1H1a1 1 0 0 1-1-1V6a1 1 0 0 1 1-1zM2.5 9a.5.5 0 0 0 0 1h8a.5.5 0 0 0 0-1zm0-2a.5.5 0 0 0 0 1h11a.5.5 0 0 0 0-1z" clip-rule="evenodd"></path>
    <path fill="currentColor" opacity="0.34" d="M0 14.75A.75.75 0 0 1 .75 14h5.5a.75.75 0 0 1 0 1.5H.75a.75.75 0 0 1-.75-.75"></path>
    <path d="M2.5 13.5 13.5 2.5" stroke="currentColor" stroke-width="1.35" stroke-linecap="round"></path>
  </svg>`;
}

function themeIcon(theme: DiffTheme): string {
  if (theme === "dark") {
    return `<svg viewBox="0 0 16 16" aria-hidden="true">
      <path fill="currentColor" d="M10.794 3.647a.217.217 0 0 1 .412 0l.387 1.162c.173.518.58.923 1.097 1.096l1.162.388a.217.217 0 0 1 0 .412l-1.162.386a1.73 1.73 0 0 0-1.097 1.097l-.387 1.162a.217.217 0 0 1-.412 0l-.387-1.162A1.74 1.74 0 0 0 9.31 7.092l-1.162-.386a.217.217 0 0 1 0-.412l1.162-.388a1.73 1.73 0 0 0 1.097-1.096zM13.863.598a.144.144 0 0 1 .221-.071.14.14 0 0 1 .053.07l.258.775c.115.345.386.616.732.731l.774.258a.145.145 0 0 1 0 .274l-.774.259a1.16 1.16 0 0 0-.732.732l-.258.773a.145.145 0 0 1-.274 0l-.258-.773a1.16 1.16 0 0 0-.732-.732l-.774-.259a.145.145 0 0 1 0-.273l.774-.259c.346-.115.617-.386.732-.732z"></path>
      <path fill="currentColor" d="M6.25 1.742a.67.67 0 0 1 .07.75 6.3 6.3 0 0 0-.768 3.028c0 2.746 1.746 5.084 4.193 5.979H1.774A7.2 7.2 0 0 1 1 8.245c0-3.013 1.85-5.598 4.484-6.694a.66.66 0 0 1 .766.19M.75 12.499a.75.75 0 0 0 0 1.5h14.5a.75.75 0 0 0 0-1.5z"></path>
    </svg>`;
  }
  return `<svg viewBox="0 0 16 16" aria-hidden="true">
    <path fill="currentColor" d="M8.21 2.109a.256.256 0 0 0-.42 0L6.534 3.893a.256.256 0 0 1-.316.085l-1.982-.917a.256.256 0 0 0-.362.21l-.196 2.174a.256.256 0 0 1-.232.232l-2.175.196a.256.256 0 0 0-.209.362l.917 1.982a.256.256 0 0 1-.085.316L.11 9.791a.256.256 0 0 0 0 .418L1.23 11H3.1a5 5 0 1 1 9.8 0h1.869l1.123-.79a.256.256 0 0 0 0-.42l-1.785-1.257a.256.256 0 0 1-.085-.316l.917-1.982a.256.256 0 0 0-.21-.362l-2.174-.196a.256.256 0 0 1-.232-.232l-.196-2.175a.256.256 0 0 0-.362-.209l-1.982.917a.256.256 0 0 1-.316-.085z"></path>
    <path fill="currentColor" d="M4 10q.001.519.126 1h7.748A4 4 0 1 0 4 10M.75 12a.75.75 0 0 0 0 1.5h14.5a.75.75 0 0 0 0-1.5z"></path>
  </svg>`;
}

function createToolbar(): HTMLElement {
  const toolbar = document.createElement("div");
  toolbar.className = "oc-diff-toolbar";

  toolbar.append(
    createToolbarButton({
      title: viewerState.layout === "unified" ? "Switch to split diff" : "Switch to unified diff",
      active: viewerState.layout === "split",
      iconMarkup: viewerState.layout === "split" ? splitIcon() : unifiedIcon(),
      onClick: () => {
        viewerState.layout = viewerState.layout === "unified" ? "split" : "unified";
        syncAllControllers();
      },
    }),
  );

  toolbar.append(
    createToolbarButton({
      title: viewerState.wrapEnabled ? "Disable word wrap" : "Enable word wrap",
      active: viewerState.wrapEnabled,
      iconMarkup: wrapIcon(viewerState.wrapEnabled),
      onClick: () => {
        viewerState.wrapEnabled = !viewerState.wrapEnabled;
        syncAllControllers();
      },
    }),
  );

  toolbar.append(
    createToolbarButton({
      title: viewerState.backgroundEnabled
        ? "Hide background highlights"
        : "Show background highlights",
      active: viewerState.backgroundEnabled,
      iconMarkup: backgroundIcon(viewerState.backgroundEnabled),
      onClick: () => {
        viewerState.backgroundEnabled = !viewerState.backgroundEnabled;
        syncAllControllers();
      },
    }),
  );

  toolbar.append(
    createToolbarButton({
      title: viewerState.theme === "dark" ? "Switch to light theme" : "Switch to dark theme",
      active: viewerState.theme === "dark",
      iconMarkup: themeIcon(viewerState.theme),
      onClick: () => {
        viewerState.theme = viewerState.theme === "dark" ? "light" : "dark";
        syncAllControllers();
      },
    }),
  );

  return toolbar;
}

function createRenderOptions(payload: DiffViewerPayload): FileDiffOptions<undefined> {
  return {
    theme: payload.options.theme,
    themeType: viewerState.theme,
    diffStyle: viewerState.layout,
    diffIndicators: payload.options.diffIndicators,
    expandUnchanged: payload.options.expandUnchanged,
    overflow: viewerState.wrapEnabled ? "wrap" : "scroll",
    disableLineNumbers: payload.options.disableLineNumbers,
    disableBackground: !viewerState.backgroundEnabled,
    unsafeCSS: payload.options.unsafeCSS,
    renderHeaderMetadata: () => createToolbar(),
  };
}

function syncDocumentTheme(): void {
  document.body.dataset.theme = viewerState.theme;
}

function applyState(controller: DiffController): void {
  controller.diff.setOptions(createRenderOptions(controller.payload));
  controller.diff.rerender();
}

function syncAllControllers(): void {
  syncDocumentTheme();
  for (const controller of controllers) {
    applyState(controller);
  }
}

async function hydrateViewer(): Promise<void> {
  const cards = getCards();
  const langs = new Set<SupportedLanguages>();
  const firstPayload = cards[0]?.payload;

  if (firstPayload) {
    viewerState.theme = firstPayload.options.themeType;
    viewerState.layout = firstPayload.options.diffStyle;
    viewerState.backgroundEnabled = firstPayload.options.backgroundEnabled;
    viewerState.wrapEnabled = firstPayload.options.overflow === "wrap";
  }

  for (const { payload } of cards) {
    for (const lang of payload.langs) {
      langs.add(lang);
    }
  }

  await preloadHighlighter({
    themes: ["pierre-light", "pierre-dark"],
    langs: langs.size > 0 ? [...langs] : ["text"],
  });

  syncDocumentTheme();

  for (const { host, payload } of cards) {
    ensureShadowRoot(host);
    const diff = new FileDiff(createRenderOptions(payload));
    diff.hydrate({
      fileContainer: host,
      prerenderedHTML: payload.prerenderedHTML,
      ...getHydrateProps(payload),
    });
    const controller = { payload, diff };
    controllers.push(controller);
    applyState(controller);
  }
}

async function main(): Promise<void> {
  try {
    await hydrateViewer();
    document.documentElement.dataset.openclawDiffsReady = "true";
  } catch (error) {
    document.documentElement.dataset.openclawDiffsError = "true";
    console.error("Failed to hydrate diff viewer", error);
  }
}

if (document.readyState === "loading") {
  document.addEventListener("DOMContentLoaded", () => {
    void main();
  });
} else {
  void main();
}