xsheetjs/demos/chrome/content.js

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/* xlsx.js (C) 2013-present SheetJS -- http://sheetjs.com */
/* eslint-env browser */
/* global XLSX, chrome */
var coords = [0,0];
document.addEventListener('mousedown', function(mouse) {
if(mouse && mouse.button == 2) coords = [mouse.clientX, mouse.clientY];
});
chrome.runtime.onMessage.addListener(function(msg, sender, cb) {
if(!msg || !msg['Sheet']) return;
if(msg.Sheet == "JS") {
var elt = document.elementFromPoint(coords[0], coords[1]);
while(elt != null) {
if(elt.tagName.toLowerCase() == "table") return cb(XLSX.utils.table_to_book(elt));
elt = elt.parentElement;
}
} else if(msg.Sheet == "J5") {
var tables = document.getElementsByTagName("table");
var wb = XLSX.utils.book_new();
for(var i = 0; i < tables.length; ++i) {
var ws = XLSX.utils.table_to_sheet(tables[i]);
XLSX.utils.book_append_sheet(wb, ws, "Table" + i);
}
return cb(wb);
}
cb(coords);
});