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Merge pull request #20845 from calixteman/new_debugger

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Update the internal viewer to use a new debugger.
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calixteman 2026-03-12 22:41:47 +01:00 committed by GitHub
commit ea949b9a0a
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4 changed files with 3347 additions and 299 deletions
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16
src/core/internal_viewer_utils.js
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@ -56,6 +56,7 @@ const InternalViewerUtils = {
const refs = Array.isArray(contentsVal) ? contentsVal : [contentsVal];
const rawContents = [];
const tokens = [];
const rawBytesArr = [];
for (const rawRef of refs) {
if (rawRef instanceof Ref) {
rawContents.push({ num: rawRef.num, gen: rawRef.gen });
@ -64,10 +65,21 @@ const InternalViewerUtils = {
if (!(stream instanceof BaseStream)) {
continue;
}
tokens.push(...this.tokenizeStream(stream, xref));
rawBytesArr.push(stream.getString());
stream.reset();
for (const token of this.tokenizeStream(stream, xref)) {
tokens.push(token);
}
}
const rawBytes = rawBytesArr.join("\n");
const { instructions, cmdNames } = this.groupIntoInstructions(tokens);
return { contentStream: true, instructions, cmdNames, rawContents };
return {
contentStream: true,
instructions,
cmdNames,
rawContents,
rawBytes,
};
},
// Lazily-built reverse map: OPS numeric id → property name string.

842
web/pdf_internal_viewer.css
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43
web/pdf_internal_viewer.html
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@ -18,12 +18,12 @@ limitations under the License.
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>PDF Internal Structure Viewer</title>
<title>PDF.js — Debugging tools</title>
<link rel="stylesheet" href="pdf_internal_viewer.css" />
</head>
<body>
<div id="header">
<h1>PDF Internal Structure Viewer</h1>
<h1>PDF.js — Debugging tools</h1>
<span id="pdf-info" aria-live="polite"></span>
</div>
<div id="controls" role="toolbar" aria-label="PDF viewer controls">
@ -31,8 +31,11 @@ limitations under the License.
<input type="file" id="file-input" accept=".pdf" />
<label for="goto-input">Go to:</label>
<input type="text" id="goto-input" placeholder="num, numR, numRgen" size="18" disabled aria-describedby="goto-input-hint" aria-invalid="false" />
<span id="goto-input-hint" hidden> Enter a page number (e.g. 5), a reference as numR (e.g. 10R) or numRgen (e.g. 10R2). Press Enter to navigate. </span>
<label><input type="checkbox" id="parse-content-stream" checked /> Parse content stream</label>
<span id="goto-input-hint" class="sr-only">
Enter a page number (e.g. 5), a reference as numR (e.g. 10R) or numRgen (e.g. 10R2). Press Enter to navigate.
</span>
<button id="debug-btn" hidden>Debug page</button>
<button id="debug-back-btn" hidden>← Back to tree</button>
<span id="status" role="status" aria-live="polite"> Select a PDF file to explore its internal structure. </span>
<a id="github-link" href="https://github.com/mozilla/pdf.js" target="_blank" rel="noopener noreferrer" aria-label="PDF.js on GitHub">
<svg viewBox="0 0 16 16" aria-hidden="true" focusable="false">
@ -43,6 +46,38 @@ limitations under the License.
</a>
</div>
<div id="tree" role="tree" aria-label="PDF internal structure"></div>
<div id="debug-view" hidden>
<div id="render-panels">
<div id="op-left-col">
<div id="op-top-row">
<div id="op-list-panel">
<div id="op-list" role="listbox" aria-label="Operator list"></div>
</div>
<div id="op-gfx-state-resizer" role="separator" aria-orientation="vertical" tabindex="0" hidden></div>
<div id="gfx-state-panel" aria-label="Graphics state" hidden></div>
</div>
<div id="op-resizer" role="separator" aria-orientation="horizontal" tabindex="0"></div>
<div id="op-detail-panel"></div>
</div>
<div id="render-resizer" role="separator" aria-orientation="vertical" tabindex="0"></div>
<div id="canvas-panel">
<div id="canvas-toolbar" role="toolbar" aria-label="Zoom controls">
<button id="zoom-out-btn" aria-label="Zoom out">−</button>
<span id="zoom-level" aria-live="polite"></span>
<button id="zoom-in-btn" aria-label="Zoom in">+</button>
<button id="redraw-btn" aria-label="Redraw page">Redraw</button>
<button id="step-btn" aria-label="Step one instruction" disabled><u>S</u>tep</button>
<button id="continue-btn" aria-label="Continue to next breakpoint" disabled><u>C</u>ontinue</button>
</div>
<div id="canvas-scroll">
<div id="canvas-wrapper">
<canvas id="render-canvas"></canvas>
<canvas id="highlight-canvas" aria-hidden="true"></canvas>
</div>
</div>
</div>
</div>
</div>
<dialog id="password-dialog" aria-labelledby="password-dialog-title">
<form method="dialog">

2745
web/pdf_internal_viewer.js
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