[Webkit-unassigned] [Bug 56559] New: Web Inspector: Scrolling and navigation is not smooth on a script with many long lines

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=56559

           Summary: Web Inspector: Scrolling and navigation is not smooth
                    on a script with many long lines
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Web Inspector
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: aandrey at chromium.org
                CC: timothy at apple.com, rik at webkit.org, keishi at webkit.org,
                    pmuellr at yahoo.com, joepeck at webkit.org,
                    pfeldman at chromium.org, yurys at chromium.org,
                    bweinstein at apple.com, apavlov at chromium.org,
                    loislo at chromium.org


Now we highlight all lines in the visible area synchronously. It takes noticeable time on source files that have many long lines (for example, obfuscated JavaScript code of GMail). Thus, scrolling and navigation via keys is not smooth on such cases. We should paint lines asynchronously.

Tested on a file with 2K lines, 1M of bytes.

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