Files
dive-into-python3/dip3.js
T

76 lines
2.7 KiB
JavaScript

window.onload = function() {
// synchronized highlighting for code blocks with callouts
var arPre = document.getElementsByTagName('pre');
for (var i = arPre.length - 1; i >= 0; i--) {
var elmPre = arPre[i];
var arCallout = elmPre.getElementsByTagName('span');
if (arCallout.length == 0) { continue; }
var elmCalloutList = elmPre.nextSibling;
while (elmCalloutList && (elmCalloutList.nodeType != 1)) {
elmCalloutList = elmCalloutList.nextSibling;
}
if (elmCalloutList.nodeName.toLowerCase() != 'ol') { continue; }
var arCalloutListItem = elmCalloutList.getElementsByTagName('li');
if (arCalloutListItem.length != arCallout.length) {
alert('Number of callouts != number of callout list items:\n' + elmPre.innerHTML);
continue;
}
for (var j = arCallout.length - 1; j >= 0; j--) {
var elmCallout = arCallout[j].parentNode;
var elmCalloutListItem = arCalloutListItem[j];
elmCallout._li = elmCalloutListItem;
elmCalloutListItem._div = elmCallout;
elmCallout.onmouseover = function() {
this.className = 'hover';
this._li.className = 'hover';
};
elmCalloutListItem.onmouseover = function() {
this.className = 'hover';
this._div.className = 'hover';
};
elmCallout.onmouseout = function() {
this.className = '';
this._li.className = '';
};
elmCalloutListItem.onmouseout = function() {
this.className = '';
this._div.className = '';
};
}
}
// synchronized highlighting for tables with callouts
var arTables = document.getElementsByTagName('table');
for (var i = arTables.length - 1; i >= 0; i--) {
var elmTable = arTables[i];
var olNotes = document.getElementById("skip" + elmTable.id);
if (!olNotes) { continue; }
var arNotes = olNotes.getElementsByTagName('li');
var arTableRows = elmTable.getElementsByTagName('tr');
if (arNotes.length == 0) { continue; }
for (var j = arTableRows.length - 1; j >= 1; j--) {
var elmTableRow = arTableRows[j];
var elmNote = arNotes[j - 1];
elmTableRow._li = elmNote;
elmNote._tr = elmTableRow;
elmTableRow.onmouseover = function() {
this.className = 'hover';
this._li.className = 'hover';
};
elmNote.onmouseover = function() {
this.className = 'hover';
this._tr.className = 'hover';
};
elmTableRow.onmouseout = function() {
this.className = '';
this._li.className = '';
};
elmNote.onmouseout = function() {
this.className = '';
this._tr.className = '';
};
}
}
}