Resending, as I sent the first time from the wrong address. > On Tue, Dec 2, 2008 at 8:06 AM, PaulTopping <[EMAIL PROTECTED]> wrote: >> This is all very old territory. As far as I know, NPAPI requires that >> the amount of space the equation takes up on a page be known in >> advance, rather than be calculated at run-time to be dependent on the >> MathML content. There is no support for baseline alignment of the >> equation with the surrounding text. The rendering can't adapt to the >> font and point size of the surrounding text, an absoluter requirement >> for math. There is no connection to accessibility. Authors are not >> interested in writing separate MathML files. With a typical technical >> paper containing hundreds of equations, it very quickly becomes a >> nightmare. > > That isn't how I meant to suggest using NPAPI. And just so you know, > I'd be happy to have people building these kind of extensions on top > of Chromium's extension system; I'm not trying to shoo you away. I'm > just curious to know where NPAPI falls short because it seems like a > good way to implement something like this. > > How I envisioned you might use NPAPI is to have a single script, > similar to gears_init.js [1] that you ask authors to embed on their > pages. In browsers that natively support MathML, the script does > nothing. Otherwise, if it detects your plugin is installed, it creates > and embeds it. The script then interacts with the plugin, eventually > modifying the DOM of the page. The NPAPI plugin could generate base-64 > encoded images which could be embedded by the script using IMG > elements with data: URLs. The script could even detect page resizes > and font size changes and regenerate the images. > > In IE, how do you actually render the math content? Is the visible > area an Active-X control? Or are you implementing an IE binary > behavior to do custom handling of tags? > > - a > > [1] http://code.google.com/apis/gears/tools.html >
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