User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a7pre) Gecko/2007072812 Minefield/3.0a7pre Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a7pre) Gecko/2007072812 Minefield/3.0a7pre The newly implemented full page zoom in the "about:" page does not affect the size of the text on the page. Reproducible: Always Steps to Reproduce: 1. Install the "Full Page Zoom" extension in a recent nightly. 2. Go to the URL of this bug (about:). 3. Select the Zoom In or Zoom Out toolbar buttons. Actual Results: The graphics are scaled up/down, but the text is not. Expected Results: All of the page elements must be scaled. about:buildconfig Build platform target i686-pc-cygwin Build tools Compiler Version Compiler flags $(CYGWIN_WRAPPER) cl 14.00.50727 -TC -nologo -W3 -Gy -Fd$(PDBFILE) $(CYGWIN_WRAPPER) cl 14.00.50727 -GR- -TP -nologo -Zc:wchar_t- -W3 -Gy -Fd$(PDBFILE) -I/usr/X11R6/include Configure arguments --enable-application=browser --enable-application=browser --disable-debug --enable-optimize --enable-canvas --enable-svg --enable-xpctools --enable-places --enable-places-bookmarks --enable-storage --enable-safe-browsing --enable-url-classifier --enable-strip --disable-javaxpcom
I found out that this bug is related to the use of CSS "font: message-box" on text. I'll be attaching a testcase soon.
Moving to the Core : GFX component... Correcting the URL for this bug... Setting the dep on bug 4821...
Hmm, I guess we want to use unscaled device pixels for measuring system fonts because users will expect them to scale. (I might comment, though, that if the user has trouble reading text at this size, they should change their OS settings.)
We don't want high DPI to affect system fonts, though.
Created attachment 274373 [details] [diff] [review] Patch
Comment on attachment 274373 [details] [diff] [review] Patch Low-risk patch; should only affect page zoom.
Verified in Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a7pre) Gecko/2007080500 Minefield/3.0a8pre...
Clearing the blocking1.9 request...