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// Cached plugin reference (or null. if it could not be instantiated)
var sharePointPlugin = undefined;
function onLoad() {
// console.log("loaded.");
}
/**
* Find (and cache) an available ActiveXObject Sharepoint plugin.
*
* @returns {ActiveXObject} or null
*/
function getSharePointPlugin() {
if( sharePointPlugin !== undefined ) {
return sharePointPlugin;
}
sharePointPlugin = null;
var plugin = document.getElementById("winFirefoxPlugin");
if ( plugin && typeof plugin.EditDocument === "function" ) {
window.console && console.log("Using embedded custom SharePoint plugin.");
sharePointPlugin = plugin;
} else if( "ActiveXObject" in window ){
plugin = null;
try {
plugin = new ActiveXObject("SharePoint.OpenDocuments.3"); // Office 2007+
} catch(e) {
try {
plugin = new ActiveXObject("SharePoint.OpenDocuments.2"); // Office 2003
} catch(e2) {
try {
plugin = new ActiveXObject("SharePoint.OpenDocuments.1"); // Office 2000/XP
} catch(e3) {
window.console && console.warn("Could not create ActiveXObject('SharePoint.OpenDocuments'): (requires IE <= 11 and matching security settings.");
}
}
}
if( plugin ){
window.console && console.log("Using native SharePoint plugin.");
sharePointPlugin = plugin;
}
}
return sharePointPlugin;
}
/**
* Open an MS Office document either with SharePoint plugin or using the 'ms-' URL prefix.
*
* @param {object} opts
* @returns {boolean} true if the URL could be opened
*/
function openWebDavDocument(opts) {
var ofe_link = opts.ofe + opts.href, // (e.g. 'ms-word:ofe|u|http://server/path/file.docx')
url = opts.href;
var plugin = getSharePointPlugin();
var res = false;
if( plugin ) {
try {
res = plugin.EditDocument(url);
if( res === false ) {
window.console && console.warn("SharePoint plugin.EditDocument(" + url + ") returned false");
}
} catch(e) {
window.console && console.warn("SharePoint plugin.EditDocument(" + url + ") raised an exception", e);
}
}
if ( res === false ) {
if( ofe_link ) {
window.console && console.log("Could not use SharePoint plugin: trying " + ofe_link);
window.open(ofe_link, "_self");
res = true;
}
}
return res;
}
/**
* Event delegation handler for clicks on a-tags with class 'msoffice'.
*/
function onClickTable(event) {
var target = event.target || event.srcElement,
opts = {
href: target.href,
ofe: target.getAttribute("data-ofe")
};
if( target.className === "msoffice" ){
if( openWebDavDocument(opts) ){
// prevent default processing if the document could be opened
return false;
}
}
} |