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Author SHA1 Message Date
Davide P. Cervone
a6f9e65af3 Simplify mfrac layout. (Don't try to force the division line to be on the baseline so that it is always raised to the correct place by a vertical align of .25em; instead, just shift the whole stack appropriately. This may cause misalignment if we can't measure the parts exactly, however, but should speed things up a bit.) 2015-03-10 19:08:32 -04:00
Davide P. Cervone
d878d3add2 Don't need bbox.H and bbox.D now that ascent and descent are equal (so center is baseline). 2015-03-10 16:00:42 -04:00
Davide P. Cervone
9ed49e85e4 Alter fonts to make ascent=descent so that line-height:0 makes its axis along the baseline. That should simplify things (though it may make unknown characters harder to handle -- we'll see). 2015-03-10 13:38:23 -04:00
Emily Eisenberg
e1fb6e667c Merge pull request #176 from janmarthedal/bin-symbols 
Make \bigtriangledown, \oplus and others Bin operators (and not Ord)
 2015-03-10 08:37:46 -07:00
Davide P. Cervone
434606ae1f Use proper spacing before msubsup. 2015-03-09 16:23:00 -04:00
Davide P. Cervone
e5a09146dd Use proper thickness for separation of root from base. 2015-03-09 15:59:16 -04:00
Davide P. Cervone
36da633619 Implement TeX rules for radicals. 2015-03-09 15:40:26 -04:00
Emily Eisenberg
91376a4d26 Fix MathML CSS 
Summary: Make the CSS rules that hide the MathML rendering not
`!important`, so that they can be overridden. Also, remove the useless
`math.katex` rule.

Fixes #197

Test plan:
 - `make test`
 - See that huxley screenshots haven't changed

Auditors: alpert
 2015-03-09 12:22:43 -07:00
Davide P. Cervone
f629bfe783 Better bounding boxes for horizontal stretchy characters, and handle case where no extenders are needed. 2015-03-09 10:14:39 -04:00
Davide P. Cervone
af043917bd Handle horizontal stretchy characters. (still need to add some font data and check overbraces when extenders aren't needed.) 2015-03-09 09:31:09 -04:00
Davide P. Cervone
1e826519af Add vertical stretchy delimiters 2015-03-08 15:04:57 -04:00
Davide P. Cervone
7764748a63 Get position of overscript correct, and don't combine bboxes unnecessarily. 2015-03-08 09:48:49 -04:00
Peter Dave Hello
ba3bbe7558 bump version number to v0.2.0 in cdn url 2015-03-08 13:53:43 +08:00
Davide P. Cervone
8b9c18e1b4 Only update bbox widths when the boxes exist 2015-03-07 11:18:55 -05:00
Davide P. Cervone
d6bb1f55d5 Fix \mathchoice to use renamed CHTMLcreateNode function 2015-03-07 11:12:01 -05:00
Davide P. Cervone
dc923adf8f Fix comments at top of file. 2015-03-07 11:11:36 -05:00
Davide P. Cervone
3619421fab Add some comments to separate the methods from one another 2015-03-07 11:00:49 -05:00
Davide P. Cervone
f9849b87d3 Convert tabls to spaces 2015-03-07 10:55:47 -05:00
Davide P. Cervone
c502910eb7 Better handling of bboxes in mfrac, msubsup, munderover, mspace. 2015-03-07 10:54:46 -05:00
Davide P. Cervone
61db5330a7 Add combineBBoxes() method, and use it in mpadded and mrow. Also use bbox.t and bbox.b to indicate the actual extent of ink (which can be altered by mpadded). This will be used in zooming to determine the size of the box needed for the actual ink. These are similar to bbox.l and bbox.r, which can be outside the width of the objects. 2015-03-06 11:57:21 -05:00
Davide P. Cervone
553a71bb44 Make sure that mphantom acts like a box with text, so that the sizing and baseline positioning are correct. 2015-03-05 15:43:36 -05:00
Davide P. Cervone
e630f1f1f2 Use original bounding box for CHTMLdimen computations in mpadded. 2015-03-05 08:04:18 -05:00
Davide P. Cervone
09bdc86660 Make msubsup one routine so that munderover can call it for moveable limits. 2015-03-05 07:59:23 -05:00
Davide P. Cervone
8f0747965c Implement TeX spacing for super and subscripts 2015-03-05 07:39:05 -05:00
Davide P. Cervone
b8ae3b9817 Actually set the height of the under- or over-script when baseline spacing is not wanted, and make sure the proper node type is created for mover. 2015-03-04 17:35:12 -05:00
Davide P. Cervone
0ba42d10b0 Fix depth of stack when underscript depth is negative. 2015-03-04 17:10:04 -05:00
Davide P. Cervone
f3fdb12f8c Fix accents to work in Safari (also simplifies the structure in this case). 2015-03-04 17:03:24 -05:00
Davide P. Cervone
e72eef13c5 Mark need to rework for Safari. 2015-03-04 13:09:43 -05:00
Davide P. Cervone
23b66a9ae9 Implement TeX spacing for munderover, including delta offsets, skew values, proper accents, and so on. Still need stretchy characters. Still need to fix a spacing problem with accents in Safari. 2015-03-04 13:08:06 -05:00
Davide P. Cervone
18e5a0ef6d Rename CHTMLstretchChild to CHTMLstretchChildV, and add CHTMLstretchChildH (still to be implemented in mo). 2015-03-04 12:54:46 -05:00
Davide P. Cervone
09aebdbf27 Refactor bounding box utility routines. 2015-03-04 12:51:09 -05:00
Davide P. Cervone
96e8ce8410 Maintain skew data in bbox. 2015-03-04 12:40:28 -05:00
Emily Eisenberg
278e4ae3c2 Upgrade katex to v0.2.0 2015-03-03 11:38:30 -08:00
Ben Alpert
c901083e59 Release 0.2.0 2015-03-01 18:44:07 -08:00
Emily Eisenberg
aaeab1200c Add MathML rendering to improve accessibility 
Summary:
This adds support for rendering KaTeX to both HTML and MathML
with the intent of improving accessibility. To accomplish this, both
MathML and HTML are rendered, but with the MathML visually hidden and
the HTML spans aria-hidden. Hopefully, this should produce much better
accessibility for KaTeX.

Should fix/improve #38

Closes #189

Test Plan:
 - Ensure all the tests, and the new tests, still pass.
 - Ensure that for each of the group types in `buildHTML.js`, there is a
   corresponding one in `buildMathML.js`.
 - Ensure that the huxley screenshots didn't change (except for
   BinomTest, which changed because I fixed a bug in `buildHTML` where
   `genfrac` didn't have a `groupToType` mapping).
 - Run ChromeVox on the test page, render some math. (for example,
   `\sqrt{x^2}`)
   - Ensure that a mathy-sounding expression is read. (I hear "group
     square root of x squared math").
   - Ensure that nothing else is read (like no "x" or "2").
 - Ensure that MathML markup is generated correctly and is interpreted
   by the browser correctly by running
   `document.getElementById("math").innerHTML =
   katex.renderToString("\\sqrt{x^2}");` and seeing that the same speech
   is read.

Reviewers: john, alpert

Reviewed By: john, alpert

Subscribers: alpert, john

Differential Revision: https://phabricator.khanacademy.org/D16373
 2015-03-01 18:33:20 -08:00
Ben Alpert
2349a1ed85 Merge pull request #127 from kevinb7/contrib_style_decls 
Added rule to the style guide section for where to declare variables
 2015-03-01 18:27:21 -08:00
Davide P. Cervone
625229566f Adjust merror CSS. 2015-03-01 18:12:45 -05:00
Davide P. Cervone
74e054397c Give mpadded elements the correct bbox. 2015-03-01 18:04:23 -05:00
Davide P. Cervone
8de643d619 Clear all useMMLspacing flags for mfenced. 2015-03-01 17:54:41 -05:00
Davide P. Cervone
f43f94a9e1 Update mpadded to work with new custom tags and line-height 2015-03-01 14:14:29 -05:00
Davide P. Cervone
c1402235ba Implement TeX fraction rules (still need to do bevelled fraction). 2015-03-01 12:56:17 -05:00
Davide P. Cervone
03ff8e5a25 Add TeX font parameters, and switch to TeX.axis_height rather than AXISHEIGHT. (Use in mtable will be fixed later.) 2015-03-01 10:48:53 -05:00
Davide P. Cervone
7b723003bf Fix up some CSS, and some other minor details. 2015-03-01 10:39:13 -05:00
Davide P. Cervone
6399338521 Preliminary change to custom tag names (for easier readability, and less chance of CSS bleed-through). 2015-02-27 10:55:43 -05:00
Davide P. Cervone
8f5677f2de Remove unwanted '+' from @font-face declaration. 2015-02-27 10:36:21 -05:00
Davide P. Cervone
a26b6426fe Make bounding boxes for character based on line-height:0 rather than line-height:normal (the other varried too much from browser to browser and failed to match the internal dimensions). The HFUZZ and DFUZZ may need to be adjusted, and may need to be made browser specific (argh), but that might be able to be done through CSS. 2015-02-27 10:35:06 -05:00
Davide P. Cervone
a05227995c Merge branch 'develop' into chtml. (Update to v2.5.1) 2015-02-25 18:44:54 -05:00
Davide P. Cervone
ad66602529 Merge remote-tracking branch 'dpvc/hotfix-2.5' into develop 2015-02-25 18:34:17 -05:00
Peter Krautzberger
574d4a3e96 Merge pull request #1065 from dpvc/hotfix-2.5 
Release of v2.5.1
 2015-02-25 17:39:43 +01:00
Davide P. Cervone
48b594afce Repack and recombine for v2.5.1 release. 2015-02-25 11:05:38 -05:00