[Webkit-unassigned] [Bug 59583] New: Web Inspector: Inspecting a node hidden behind "Show All Nodes" button is unacceptable slow

Tue Apr 26 23:14:20 PDT 2011

https://bugs.webkit.org/show_bug.cgi?id=59583

           Summary: Web Inspector: Inspecting a node hidden behind "Show
                    All Nodes" button is unacceptable slow
           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: mnaganov 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


Created an attachment (id=91239)
 --> (https://bugs.webkit.org/attachment.cgi?id=91239&action=review)
Repro page

Consider the following scenario:
 - open the repro page;
 - open Inspector;
 - in the "Elements" panel, expand <body>, <table> and <tbody> nodes;
 - observe that only 500 <tr> nodes are shown, and the rest are hidden behind the "Show All Nodes" button;
 - on the repro page, invoke context menu on the bottom node (having "9999" value), and click "Inspect Element";
 - it will require a lot of time for Inspector to reveal the node.

In contrast, the following scenario works fast:
 - open the repro page;
 - don't open Inspector;
 - on the repro page, invoke context menu on the bottom node (having "9999" value), and click "Inspect Element";
 - Inspector will open, but will not reveal the node (this is another bug, I believe);
 - invoke "Inspect Element" on the same node again -- it will be revealed in Inspector in a timely manner.

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