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Merge pull request #527 from fred-wang/issue482

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This resolves issue #482.
This commit is contained in:
Davide P. Cervone 2013-08-02 04:05:13 -07:00
commit 4263db98d3
1 changed files with 146 additions and 1 deletions
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147
unpacked/jax/output/NativeMML/jax.js
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@ -444,7 +444,14 @@
negativemediummathspace: "-.2222em",
negativethickmathspace: "-.2778em",
negativeverythickmathspace: "-.3333em",
negativeveryverythickmathspace: "-.3889em"
negativeveryverythickmathspace: "-.3889em",
veryverythinmathspace: ".0556em",
verythinmathspace: ".1111em",
thinmathspace: ".1667em",
mediummathspace: ".2222em",
thickmathspace: ".2778em",
verythickmathspace: ".3333em",
veryverythickmathspace: ".3889em"
}
});
@ -1088,6 +1095,138 @@
}
});
MML.mi.Augment({
toNativeMML: function (parent) {
this.SUPER(arguments).toNativeMML.call(this,parent);
if (nMML.miItalicBug) {
if (this.Get("mathvariant") === MML.VARIANT.NORMAL) {
//
// When not explicitly specified, mathvariant is set to "italic"
// with single char mi and to "normal" with multiple char mi.
// Some browsers always set the default to "italic", so let's
// attach an explicit mathvariant="normal" attribute.
//
var mi = parent.lastChild;
mi.setAttribute("mathvariant",MML.VARIANT.NORMAL);
}
}
}
});
MML.mo.Augment({
toNativeMML: function (parent) {
this.SUPER(arguments).toNativeMML.call(this,parent);
if (nMML.webkitMoSpacingBug) {
//
// WebKit does not support lspace/rspace values around operators
// (neither explicit nor given by the operator dictionary) and uses
// constant values instead. So let's modify the CSS properties here.
//
var lspace = 0, rspace = 0, p = this.parent;
if (p && p.type === "mrow" && (p.inferred || !p.isEmbellished())) {
//
// Retrieve the values of lspace/rspace and convert named spaces.
// Other values (except unitless) will be parsed by the CSS engine.
//
var values = this.getValues("lspace", "rspace");
lspace = values.lspace, rspace = values.rspace;
if (nMML.NAMEDSPACE[lspace]) {lspace = nMML.NAMEDSPACE[lspace]}
if (nMML.NAMEDSPACE[rspace]) {rspace = nMML.NAMEDSPACE[rspace]}
}
//
// Now update -webkit-margin-start and -webkit-margin-end.
//
var mo = parent.lastChild;
var span = HTML.Element("span");
span.style.cssText = (mo.getAttribute("style")||"");
span.style.setProperty("-webkit-margin-start", lspace);
span.style.setProperty("-webkit-margin-end", rspace);
mo.setAttribute("style",span.style.cssText);
}
}
});
MML.mmultiscripts.Augment({
toNativeMML: function (parent) {
//
// Some browsers do not implement the mmultiscripts element.
// Try to emulate the support using basic script elements.
//
if (!nMML.mmultiscriptsBug || this.data.length === 0 ) {
this.SUPER(arguments).toNativeMML.call(this,parent);
return;
}
//
// The children of the mmultiscripts will be wrapped in an mrow so that
// attributes and properties set on the original mmultiscripts will
// be reflected on this mrow element.
//
var tag = this.NativeMMLelement("mrow");
this.NativeMMLattributes(tag);
//
// Create the base
//
if (this.data[0]) {this.data[0].toNativeMML(tag)}
else {tag.appendChild(this.NativeMMLelement("mrow"))}
base = tag.removeChild(tag.lastChild);
//
// Process the postscript pairs
//
var m = this.data.length, i;
for (i = 1; i < m; i+=2) {
if (this.data[i].type === "mprescripts") break;
var msubsup = this.NativeMMLelement("msubsup");
msubsup.appendChild(base);
//
// append the subscript
//
if (this.data[i]) {this.data[i].toNativeMML(msubsup)}
else {msubsup.appendChild(this.NativeMMLelement("mrow"))}
//
// append the supscript
//
if (i+1 < m && this.data[i+1]) {this.data[i+1].toNativeMML(msubsup)}
else {msubsup.appendChild(this.NativeMMLelement("mrow"))}
base = msubsup;
}
tag.appendChild(base);
//
// Process the prescript pairs
//
for (i++; i < m; i+=2) {
var msubsup = this.NativeMMLelement("msubsup");
msubsup.appendChild(this.NativeMMLelement("mrow"));
//
// append the presubscript
//
if (this.data[i]) {this.data[i].toNativeMML(msubsup)}
else {msubsup.appendChild(this.NativeMMLelement("mrow"))}
//
// append the presupscript
//
if (i+1 < m && this.data[i+1]) {this.data[i+1].toNativeMML(msubsup)}
else {msubsup.appendChild(this.NativeMMLelement("mrow"))}
tag.insertBefore(msubsup, base);
}
parent.appendChild(tag);
}
});
HUB.Register.StartupHook("TeX mathchoice Ready",function () {
MML.TeXmathchoice.Augment({
//
@ -1120,6 +1259,8 @@
nMML.stretchyMoBug = true;
nMML.tableLabelBug = true;
nMML.mfencedBug = true;
nMML.miBug = true;
nMML.mmultiscriptsBug = true;
},
Firefox: function (browser) {
nMML.ffTableWidthBug = !browser.versionAtLeast("13.0"); // <mtable width="xx"> not implemented
@ -1144,6 +1285,10 @@
nMML.tableSpacingBug = true;
nMML.tableLabelBug = true;
nMML.mfencedBug = true;
nMML.miItalicBug = true;
nMML.webkitMoSpacingBug = true;
nMML.spaceWidthBug = true;
nMML.mmultiscriptsBug = true;
}
});