brave/brave-browser

Double click and drag doesn't work for text highlighting in PDFs

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#51,144 建立於 2025年11月30日

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OS/DesktopOS/Linuxfeature/pdfhelp wanted

描述

Description

Double click and drag in PDF files doesn't work.

Steps to reproduce

  1. Open a PDF file in the browser
  2. Double click on a word and drag the mouse to select a few words

Actual result

Only the first double clicked word is highlighted

Expected result

It should highlight text to the place of mouseup

Reproduces how often

Easily reproduced

Brave version (brave://version info)

Brave 1.84.141 Chromium: 142.0.7444.176 (Official Build) (64-bit) Revision dbdb1336cf66d49f25b189868cad563426d4346d OS Linux

Channel information

  • release (stable)
  • beta
  • nightly

Reproducibility

  • with Brave Shields disabled
  • with Brave Rewards disabled
  • in the latest version of Chrome

Miscellaneous information

No response

貢獻者指南

技術棧
javascripthtmlcss
領域
frontend
議題類型
bug
難度面向新貢獻者的預計實作難度，1 表示很小改動，5 表示專家級工作。
3
預計時間有經驗貢獻者完成調查、實作、測試並準備 pull request 的粗略時間範圍。
1-3 hours
活動狀態議題目前的可參與程度：新鮮、活躍、陳舊、阻塞或等待維護者輸入。
fresh
清晰度議題是否清楚說明預期改動、驗收標準和下一步。
clear
前置要求
PDF rendering basicsText selection APIsBrave codebase structure
新手友善度1-100 的估計分數，表示該議題對首次貢獻者的友善程度。
45
研究方向
Investigate the text selection behavior in Brave's PDF viewer. The issue likely resides in the PDF plugin or extension that handles mouse events. Examine the logic for double click and drag to select words. Look at the PDF.js library or Chromium's PDF viewer code for known issues. Check the 'brave browser' repository for PDF related components. No linked PRs or comments yet, so the fix may involve modifying the selection handler to allow dragging after double click.