[Webkit-unassigned] [Bug 107380] Specifying the width/height of an input element modifies its margin

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=107380





--- Comment #2 from Takashi Sakamoto <tasak at google.com>  2013-01-20 21:02:33 PST ---
I think, this is caused by StyleResolver:

static void addIntrinsicMargins(RenderStyle* style)
{
....
    if (style->height().isAuto()) {
        if (style->marginTop().quirk())
            style->setMarginTop(Length(intrinsicMargin, Fixed));
        if (style->marginBottom().quirk())
            style->setMarginBottom(Length(intrinsicMargin, Fixed));
    }
}

and StyleResolver::adjustRenderStyle():

    if (e && e->isFormControlElement() && style->fontSize() >= 11) {
        if (!e->hasTagName(inputTag) || !static_cast<HTMLInputElement*>(e)->isI\
mageButton())
            addIntrinsicMargins(style);
    }

Since input's default height is auto and margin is 0__qem, its margin top will be "2px" (intrinsicMargin = 2). After setting input's height, e.g. 16px, the height is not auto and no addIntrinsicMargins is invoked. The marginTop is "0px".

Best regards,
Takashi Sakamoto

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