/* -*- Mode: Javascript; indent-tabs-mode:nil; js-indent-level: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/*************************************************************
*
* MathJax/jax/output/HTML-CSS/autoload/mtable.js
*
* Implements the HTML-CSS output for <mtable> elements.
*
* ---------------------------------------------------------------------
*
* Copyright (c) 2010-2015 The MathJax Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
MathJax.Hub.Register.StartupHook("HTML-CSS Jax Ready",function () {
var VERSION = "2.6.0";
var MML = MathJax.ElementJax.mml,
HTMLCSS = MathJax.OutputJax["HTML-CSS"];
MML.mtable.Augment({
toHTML: function (span) {
span = this.HTMLcreateSpan(span);
if (this.data.length === 0) {return span}
var values = this.getValues("columnalign","rowalign","columnspacing","rowspacing",
"columnwidth","equalcolumns","equalrows",
"columnlines","rowlines","frame","framespacing",
"align","useHeight","width","side","minlabelspacing");
var hasRelativeWidth = values.width.match(/%$/);
var stack = HTMLCSS.createStack(span);
var scale = this.HTMLgetScale(), mu = this.HTMLgetMu(span), LABEL = -1;
var H = [], D = [], W = [], A = [], C = [], i, j, J = -1,
m, M, s, row, cell, mo, entries = [], HD;
var LH = HTMLCSS.FONTDATA.lineH * scale * values.useHeight,
LD = HTMLCSS.FONTDATA.lineD * scale * values.useHeight;
//
// Create cells and measure columns and rows
//
for (i = 0, m = this.data.length; i < m; i++) {
row = this.data[i]; s = (row.type === "mlabeledtr" ? LABEL : 0);
A[i] = []; H[i] = LH; D[i] = LD;
for (j = s, M = row.data.length + s; j < M; j++) {
if (W[j] == null) {
if (j > J) {J = j}
C[j] = HTMLCSS.createStack(HTMLCSS.createBox(stack));
W[j] = -HTMLCSS.BIGDIMEN;
}
A[i][j] = HTMLCSS.createBox(C[j]);
entries.push(row.data[j-s].toHTML(A[i][j]));
}
}
HTMLCSS.MeasureSpans(entries);
for (i = 0, m = this.data.length; i < m; i++) {
row = this.data[i]; s = (row.type === "mlabeledtr" ? LABEL : 0);
for (j = s, M = row.data.length + s; j < M; j++) {
cell = row.data[j-s];
if (cell.isMultiline) {A[i][j].style.width = "100%"}
if (cell.isEmbellished()) {
mo = cell.CoreMO();
var min = mo.Get("minsize",true);
if (min) {
var bbox = mo.HTMLspanElement().bbox;
if (mo.HTMLcanStretch("Vertical")) {
HD = bbox.h + bbox.d;
if (HD) {
min = HTMLCSS.length2em(min,mu,HD);
if (min*bbox.h/HD > H[i]) {H[i] = min*bbox.h/HD}
if (min*bbox.d/HD > D[i]) {D[i] = min*bbox.d/HD}
}
} else if (mo.HTMLcanStretch("Horizontal")) {
min = HTMLCSS.length2em(min,mu,bbox.w);
if (min > W[j]) {W[j] = min}
}
}
}
if (A[i][j].bbox.h > H[i]) {H[i] = A[i][j].bbox.h}
if (A[i][j].bbox.d > D[i]) {D[i] = A[i][j].bbox.d}
if (A[i][j].bbox.w > W[j]) {W[j] = A[i][j].bbox.w}
}
}
//
// Determine spacing and alignment
//
var SPLIT = MathJax.Hub.SplitList;
var CSPACE = SPLIT(values.columnspacing),
RSPACE = SPLIT(values.rowspacing),
CALIGN = SPLIT(values.columnalign),
RALIGN = SPLIT(values.rowalign),
CLINES = SPLIT(values.columnlines),
RLINES = SPLIT(values.rowlines),
CWIDTH = SPLIT(values.columnwidth),
RCALIGN = [];
for (i = 0, m = CSPACE.length; i < m; i++) {CSPACE[i] = HTMLCSS.length2em(CSPACE[i],mu)}
for (i = 0, m = RSPACE.length; i < m; i++) {RSPACE[i] = HTMLCSS.length2em(RSPACE[i],mu)}
while (CSPACE.length < J) {CSPACE.push(CSPACE[CSPACE.length-1])}
while (CALIGN.length <= J) {CALIGN.push(CALIGN[CALIGN.length-1])}
while (CLINES.length < J) {CLINES.push(CLINES[CLINES.length-1])}
while (CWIDTH.length <= J) {CWIDTH.push(CWIDTH[CWIDTH.length-1])}
while (RSPACE.length < A.length) {RSPACE.push(RSPACE[RSPACE.length-1])}
while (RALIGN.length <= A.length) {RALIGN.push(RALIGN[RALIGN.length-1])}
while (RLINES.length < A.length) {RLINES.push(RLINES[RLINES.length-1])}
if (C[LABEL]) {
CALIGN[LABEL] = (values.side.substr(0,1) === "l" ? "left" : "right");
CSPACE[LABEL] = -W[LABEL];
}
//
// Override row data
//
for (i = 0, m = A.length; i < m; i++) {
row = this.data[i]; RCALIGN[i] = [];
if (row.rowalign) {RALIGN[i] = row.rowalign}
if (row.columnalign) {
RCALIGN[i] = SPLIT(row.columnalign);
while (RCALIGN[i].length <= J) {RCALIGN[i].push(RCALIGN[i][RCALIGN[i].length-1])}
}
}
//
// Handle equal heights
//
if (values.equalrows) {
// FIXME: should really be based on row align (below is for baseline)
var Hm = Math.max.apply(Math,H), Dm = Math.max.apply(Math,D);
for (i = 0, m = A.length; i < m; i++)
{s = ((Hm + Dm) - (H[i] + D[i])) / 2; H[i] += s; D[i] += s}
}
// FIXME: do background colors for entire cell (include half the intercolumn space?)
//
// Determine array total height
//
HD = H[0] + D[A.length-1];
for (i = 0, m = A.length-1; i < m; i++) {HD += Math.max(0,D[i]+H[i+1]+RSPACE[i])}
//
// Determine frame and line sizes
//
var fx = 0, fy = 0, fW, fH = HD;
if (values.frame !== "none" ||
(values.columnlines+values.rowlines).match(/solid|dashed/)) {
var frameSpacing = SPLIT(values.framespacing);
if (frameSpacing.length != 2) {
// invalid attribute value: use the default.
frameSpacing = SPLIT(this.defaults.framespacing);
}
fx = HTMLCSS.length2em(frameSpacing[0],mu);
fy = HTMLCSS.length2em(frameSpacing[1],mu);
fH = HD + 2*fy; // fW waits until stack.bbox.w is determined
}
//
// Compute alignment
//
var Y, fY, n = "";
if (typeof(values.align) !== "string") {values.align = String(values.align)}
if (values.align.match(/(top|bottom|center|baseline|axis)( +(-?\d+))?/))
{n = RegExp.$3||""; values.align = RegExp.$1} else {values.align = this.defaults.align}
if (n !== "") {
//
// Find the height of the given row
//
n = parseInt(n);
if (n < 0) {n = A.length + 1 + n}
if (n < 1) {n = 1} else if (n > A.length) {n = A.length}
Y = 0; fY = -(HD + fy) + H[0];
for (i = 0, m = n-1; i < m; i++) {
// FIXME: Should handle values.align for final row
var dY = Math.max(0,D[i]+H[i+1]+RSPACE[i]);
Y += dY; fY += dY;
}
} else {
Y = ({
top: -(H[0] + fy),
bottom: HD + fy - H[0],
center: HD/2 - H[0],
baseline: HD/2 - H[0],
axis: HD/2 + HTMLCSS.TeX.axis_height*scale - H[0]
})[values.align];
fY = ({
top: -(HD + 2*fy),
bottom: 0,
center: -(HD/2 + fy),
baseline: -(HD/2 + fy),
axis: HTMLCSS.TeX.axis_height*scale - HD/2 - fy
})[values.align];
}
var WW, WP = 0, Wt = 0, Wp = 0, p = 0, f = 0, P = [], F = [], Wf = 1;
//
if (values.equalcolumns && values.width !== "auto") {
//
// Handle equalcolumns for percent-width and fixed-width tables
//
if (hasRelativeWidth) {
// Set widths to percentages
WW = (100/(J+1)).toFixed(2).replace(/\.?0+$/,"")+"%";
for (i = 0, m = Math.min(J+1,CWIDTH.length); i < m; i++) {CWIDTH[i] = WW}
// Get total column spacing
WW = 0; WP = 1; f = J+1;
for (i = 0, m = Math.min(J+1,CSPACE.length); i < m; i++) {WW += CSPACE[i]}
} else {
// Get total width minus column spacing
WW = HTMLCSS.length2em(values.width,mu);
for (i = 0, m = Math.min(J,CSPACE.length); i < m; i++) {WW -= CSPACE[i]}
// Determine individual column widths
WW /= J;
for (i = 0, m = Math.min(J+1,CWIDTH.length); i < m; i++) {W[i] = WW}
}
} else {
//
// Get column widths for fit and percentage columns
//
// Calculate the natural widths and percentage widths,
// while keeping track of the fit and percentage columns
for(i = 0, m = Math.min(J+1,CWIDTH.length); i < m; i++) {
if (CWIDTH[i] === "auto") {Wt += W[i]}
else if (CWIDTH[i] === "fit") {F[f] = i; f++; Wt += W[i]}
else if (CWIDTH[i].match(/%$/))
{P[p] = i; p++; Wp += W[i]; WP += HTMLCSS.length2em(CWIDTH[i],mu,1)}
else {W[i] = HTMLCSS.length2em(CWIDTH[i],mu); Wt += W[i]}
}
if (hasRelativeWidth) {
// Get separation width and check percentages
WW = 0; for (i = 0, m = Math.min(J,CSPACE.length); i < m; i++) {WW += CSPACE[i]}
if (WP > .98) {Wf = .98/WP; WP = .98}
} else {
// Get the full width (excluding inter-column spacing)
if (values.width === "auto") {
if (WP > .98) {Wf = Wp/(Wt+Wp); WW = Wt + Wp} else {WW = Wt / (1-WP)}
} else {
WW = HTMLCSS.length2em(values.width,mu);
for (i = 0, m = Math.min(J,CSPACE.length); i < m; i++) {WW -= CSPACE[i]}
}
// Determine the relative column widths
for (i = 0, m = P.length; i < m; i++) {
W[P[i]] = HTMLCSS.length2em(CWIDTH[P[i]],mu,WW*Wf); Wt += W[P[i]];
}
// Stretch fit columns, if any, otherwise stretch (or shrink) everything
if (Math.abs(WW - Wt) > .01) {
if (f && WW > Wt) {
WW = (WW - Wt) / f; for (i = 0, m = F.length; i < m; i++) {W[F[i]] += WW}
} else {WW = WW/Wt; for (j = 0; j <= J; j++) {W[j] *= WW}}
}
//
// Handle equal columns
//
if (values.equalcolumns) {
var Wm = Math.max.apply(Math,W);
for (j = 0; j <= J; j++) {W[j] = Wm}
}
}
}
//
// Lay out array columns
//
var y = Y, dy, line, align; s = (C[LABEL] ? LABEL : 0);
for (j = s; j <= J; j++) {
for (i = 0, m = A.length; i < m; i++) {
if (A[i][j]) {
s = (this.data[i].type === "mlabeledtr" ? LABEL : 0);
cell = this.data[i].data[j-s];
if (cell.HTMLcanStretch("Horizontal")) {
A[i][j].bbox = cell.HTMLstretchH(C[j],W[j]).bbox;
} else if (cell.HTMLcanStretch("Vertical")) {
mo = cell.CoreMO();
var symmetric = mo.symmetric; mo.symmetric = false;
A[i][j].bbox = cell.HTMLstretchV(C[j],H[i],D[i]).bbox; A[i][j].HH = null;
if (A[i][j].bbox.h > H[i]) {A[i][j].bbox.H = A[i][j].bbox.h; A[i][j].bbox.h = H[i]}
if (A[i][j].bbox.d > D[i]) {A[i][j].bbox.D = A[i][j].bbox.d; A[i][j].bbox.d = D[i]}
mo.symmetric = symmetric;
}
align = cell.rowalign||this.data[i].rowalign||RALIGN[i];
dy = ({top: H[i] - A[i][j].bbox.h,
bottom: A[i][j].bbox.d - D[i],
center: ((H[i]-D[i]) - (A[i][j].bbox.h-A[i][j].bbox.d))/2,
baseline: 0, axis: 0})[align] || 0; // FIXME: handle axis better?
align = (cell.columnalign||RCALIGN[i][j]||CALIGN[j]);
HTMLCSS.alignBox(A[i][j],align,y+dy);
}
if (i < A.length-1) {y -= Math.max(0,D[i]+H[i+1]+RSPACE[i])}
}
y = Y;
}
//
// Set column widths and placement
//
if (hasRelativeWidth) {
//
// Remove column spacing to get width available for columns
//
var box = HTMLCSS.createBox(stack); box.style.left = box.style.top = 0;
box.style.right = HTMLCSS.Em(WW+2*fx); box.style.display = "inline-block";
box.style.height = "0px";
if (HTMLCSS.msieRelativeWidthBug) {
box = HTMLCSS.createBox(box); box.style.position = "relative";
box.style.height = "1em"; box.style.width = "100%"; box.bbox = stack.bbox;
}
//
// wp = remaining width (%) divided by the number of columns it is split over
// wm = remaining width (fixed) divided by the number of columns it is split over
//
var xp = 0, xf = fx, wp, wm;
if (f) {wp = 100*(1-WP)/f, wm = Wt/f} else {wp = 100*(1-WP)/(J+1); wm = Wt/(J+1)}
for (j = 0; j <= J; j++) {
HTMLCSS.placeBox(C[j].parentNode,0,0); // sets the bbox
//
// Convert original column to the innermost span in the mobile column
//
C[j].style.position = "relative";
C[j].style.left = HTMLCSS.Em(xf);
C[j].style.width = "100%";
C[j].parentNode.parentNode.removeChild(C[j].parentNode);
var Cj = HTMLCSS.createBox(box); HTMLCSS.addBox(Cj,C[j]); C[j] = Cj;
var CjStyle = Cj.style; CjStyle.display = "inline-block"; CjStyle.left = xp + "%";
//
// Set width/position based on the type of column
//
if (CWIDTH[j].match(/%$/)) {
var pp = parseFloat(CWIDTH[j]) * Wf;
if (f === 0) {
CjStyle.width = (wp + pp) + "%"; xp += wp + pp;
Cj = HTMLCSS.createBox(Cj); HTMLCSS.addBox(Cj,C[j].firstChild);
Cj.style.left = 0; Cj.style.right = HTMLCSS.Em(wm); xf -= wm;
} else {
CjStyle.width = pp + "%"; xp += pp;
}
} else if (CWIDTH[j] === "fit" || f === 0) {
CjStyle.width = wp + "%";
Cj = HTMLCSS.createBox(Cj); HTMLCSS.addBox(Cj,C[j].firstChild);
Cj.style.left = 0; Cj.style.right = HTMLCSS.Em(wm-W[j]);
xf += W[j] - wm; xp += wp;
} else {
CjStyle.width = HTMLCSS.Em(W[j]); xf += W[j];
}
if (HTMLCSS.msieRelativeWidthBug) {
HTMLCSS.addText(Cj.firstChild,HTMLCSS.NBSP); // gets correct baseline
Cj.firstChild.style.position = "relative";
}
xf += CSPACE[j];
//
// Add column lines
//
if (CLINES[j] !== "none" && j < J && j !== LABEL) {
line = HTMLCSS.createBox(box); line.style.left = xp+"%";
line = HTMLCSS.createRule(line,fH,0,1.25/HTMLCSS.em); line.style.position = "absolute";
line.bbox = {h:fH, d:0, w:0, rw:1.25/HTMLCSS.em, lw:0};
line.parentNode.bbox = stack.bbox; // make sure stack size is updated
HTMLCSS.placeBox(line,xf-CSPACE[j]/2,fY,true); line.style.borderStyle = CLINES[j];
}
}
} else {
//
// Set the column box widths and place them
//
var x = fx;
for (j = 0; j <= J; j++) {
if (!C[j].bbox.width) {HTMLCSS.setStackWidth(C[j],W[j])}
if (CWIDTH[j] !== "auto" && CWIDTH[j] !== "fit")
{C[j].bbox.width = W[j]; C[j].bbox.isFixed = true}
HTMLCSS.placeBox(C[j].parentNode,x,0); x += W[j] + CSPACE[j];
//
// Add column lines
//
if (CLINES[j] !== "none" && j < J && j !== LABEL) {
line = HTMLCSS.createRule(stack,fH,0,1.25/HTMLCSS.em); HTMLCSS.addBox(stack,line);
line.bbox = {h:fH, d:0, w:0, rw:1.25/HTMLCSS.em, lw:0};
HTMLCSS.placeBox(line,x-CSPACE[j]/2,fY,true); line.style.borderStyle = CLINES[j];
}
}
}
stack.bbox.d = -fY; stack.bbox.h = fH+fY;
HTMLCSS.setStackWidth(stack,stack.bbox.w + fx);
//
// Add frame
//
fW = stack.bbox.w; var frame;
if (values.frame !== "none") {
frame = HTMLCSS.createFrame(stack,fH,0,fW,1.25/HTMLCSS.em,values.frame);
HTMLCSS.addBox(stack,frame); HTMLCSS.placeBox(frame,0,fY,true);
if (hasRelativeWidth) {frame.style.width = "100%"}
}
//
// Add row lines
//
y = Y;
for (i = 0, m = A.length-1; i < m; i++) {
dy = Math.max(0,D[i]+H[i+1]+RSPACE[i]);
if (RLINES[i] !== MML.LINES.NONE && RLINES[i] !== "") {
line = HTMLCSS.createRule(stack,1.25/HTMLCSS.em,0,fW); HTMLCSS.addBox(stack,line);
line.bbox = {h:1.25/HTMLCSS.em, d:0, w:fW, rw:fW, lw:0};
HTMLCSS.placeBox(line,0,y - D[i] - (dy-D[i]-H[i+1])/2,true);
if (RLINES[i] === MML.LINES.DASHED) line.style.borderTopStyle = "dashed";
if (hasRelativeWidth) line.style.width = "100%"
}
y -= dy;
}
//
// Set relative width
//
if (hasRelativeWidth) {span.bbox.width = values.width; stack.style.width = "100%"}
//
// Place the labels, if any
//
if (C[LABEL]) {
var mw = stack.bbox.w;
var indent = this.getValues("indentalignfirst","indentshiftfirst","indentalign","indentshift");
if (indent.indentalignfirst !== MML.INDENTALIGN.INDENTALIGN) {indent.indentalign = indent.indentalignfirst}
if (indent.indentalign === MML.INDENTALIGN.AUTO) {indent.indentalign = this.displayAlign}
if (indent.indentshiftfirst !== MML.INDENTSHIFT.INDENTSHIFT) {indent.indentshift = indent.indentshiftfirst}
if (indent.indentshift === "auto") {indent.indentshift = "0"}
var shift = HTMLCSS.length2em(indent.indentshift,mu,HTMLCSS.cwidth);
var labelspace = HTMLCSS.length2em(values.minlabelspacing,mu,HTMLCSS.cwidth);
var labelW = labelspace + C[LABEL].bbox.w, labelshift = 0, tw = mw;
var dIndent = HTMLCSS.length2em(this.displayIndent,mu,HTMLCSS.cwidth);
s = (CALIGN[LABEL] === MML.INDENTALIGN.RIGHT ? -1 : 1);
if (indent.indentalign === MML.INDENTALIGN.CENTER) {
tw += 2 * (labelW - s*(shift + dIndent));
shift += dIndent;
} else if (CALIGN[LABEL] === indent.indentalign) {
if (dIndent < 0) {labelshift = s*dIndent; dIndent = 0}
shift += s*dIndent; if (labelW > s*shift) shift = s*labelW; shift += labelshift;
tw += s*shift;
} else {
tw += labelW - s*shift + dIndent;
shift -= s*dIndent;
}
var eqn = HTMLCSS.createStack(span,false,"100%");
HTMLCSS.addBox(eqn,stack); HTMLCSS.alignBox(stack,indent.indentalign,0,shift);
C[LABEL].parentNode.parentNode.removeChild(C[LABEL].parentNode);
HTMLCSS.addBox(eqn,C[LABEL]); HTMLCSS.alignBox(C[LABEL],CALIGN[LABEL],0);
if (HTMLCSS.msieRelativeWidthBug) {stack.style.top = C[LABEL].style.top = ""}
if (hasRelativeWidth) {stack.style.width = values.width; span.bbox.width = "100%"}
C[LABEL].style[s === 1 ? "marginLeft" : "marginRight"] = HTMLCSS.Em(s*labelshift);
span.bbox.tw = tw;
span.style.minWidth = span.bbox.minWidth = HTMLCSS.Em(tw);
eqn.style.minWidth = eqn.bbox.minWidth = HTMLCSS.Em(tw/scale);
}
//
// Finish the table
//
if (!hasRelativeWidth) {this.HTMLhandleSpace(span)}
var color = this.HTMLhandleColor(span);
//
// Handle relative-sized background color
//
if (color && hasRelativeWidth) {
if (!frame) {
frame = HTMLCSS.createFrame(stack,fH,0,fW,0,"none");
HTMLCSS.addBox(stack,frame); HTMLCSS.placeBox(frame,0,fY,true);
frame.style.width = "100%";
}
frame.style.backgroundColor = color.style.backgroundColor;
frame.parentNode.insertBefore(frame,frame.parentNode.firstChild);
color.parentNode.removeChild(color);
}
return span;
},
HTMLhandleSpace: function (span) {
span.bbox.keepPadding = true; span.bbox.exact = true;
if (!this.hasFrame && span.bbox.width == null)
{span.style.paddingLeft = span.style.paddingRight = HTMLCSS.Em(1/6)}
this.SUPER(arguments).HTMLhandleSpace.call(this,span);
}
});
MML.mtd.Augment({
toHTML: function (span,HW,D) {
span = this.HTMLcreateSpan(span);
if (this.data[0]) {
var box = this.data[0].toHTML(span);
if (D != null) {box = this.data[0].HTMLstretchV(span,HW,D)}
else if (HW != null) {box = this.data[0].HTMLstretchH(span,HW)}
span.bbox = box.bbox;
}
this.HTMLhandleSpace(span);
this.HTMLhandleColor(span);
return span;
},
HTMLstretchH: MML.mbase.HTMLstretchH,
HTMLstretchV: MML.mbase.HTMLstretchV
});
MathJax.Hub.Startup.signal.Post("HTML-CSS mtable Ready");
MathJax.Ajax.loadComplete(HTMLCSS.autoloadDir+"/mtable.js");
});