In the nsImageFrame.cpp source code, there is this logic in the
Paint() method:
I would like to know under what situation the painting is suppressed
in PresShell?
// If painting is suppressed, we need to stop image painting. We
// have to cover <img> here because of input image controls.
PRBool paintingSuppressed = PR_FALSE;
aPresContext->PresShell()-
>IsPaintingSuppressed(&paintingSuppressed);
if (paintingSuppressed) {
return NS_OK;
}
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