481990 - Extra line added while coping code from view source

Status: NEW

(Core :: DOM: Core & HTML, defect, P5)

Description

[Biju]

Attachment: index.xhtml

Extra line added while coping code from view source

created per bug 481552  Comment 7
Extra line added while coping code from view source.

Steps:-
1. Goto http://www.chanezon.com/pat/code/html5/video/index.xhtml
   (or attachment index.xhtml)
2. do view-source
3. do select all
4. copy code 
5. paste it to a text editor or a HTML TEXTAREA

Result:-
User see extra lines, example at code below you should not see an extra line between the two <div>, these extra line are not visible view-source

    <div>
      <video id="video" src="video.ogv" controls="true"/>
    </div>

    <div>
      <canvas id="c1" width="160" height="96"/>
      <canvas id="c2" width="160" height="96"/>
      <canvas id="c3" width="160" height="96"/>
    </div>


Expected:-
User see same number of line in view-source and text editor. Like

    <div>
      <video id="video" src="video.ogv" controls="true"/>
    </div>
    <div>
      <canvas id="c1" width="160" height="96"/>
      <canvas id="c2" width="160" height="96"/>
      <canvas id="c3" width="160" height="96"/>
    </div>

Comment 1

[Boris Zbarsky [:bzbarsky]]

Attachment: Simple testcase

Not that this is completely unrelated to view-source.

Comment 2

[Boris Zbarsky [:bzbarsky]]

The relevant code in nsPlainTextSerializer::DoCloseContainer is:

922   else if (type == eHTMLTag_pre) {
923     mFloatingLines = GetLastBool(mIsInCiteBlockquote) ? 0 : 1;
924     mLineBreakDue = PR_TRUE;
925   }

this might be the right behavior for unstyled <pre>; I don't know.  Seems pretty weird to me.

I suppose view-source could stop using <pre> to avoid this crap; that might not be a bad idea.  Blake, what do you think?

Comment 3

[Firefox Bug Husbandry Bot]

https://bugzilla.mozilla.org/show_bug.cgi?id=1472046

Move all DOM bugs that haven’t been updated in more than 3 years and has no one currently assigned to P5.

If you have questions, please contact :mdaly.