/*
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PDFObject v1.2.20111123
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https://github.com/pipwerks/PDFObject
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Copyright (c) Philip Hutchison
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MIT-style license: http://pipwerks.mit-license.org/*/
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/*jslint browser: true, sloppy: true, white: true, plusplus: true */
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/*global ActiveXObject, window */
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var PDFObject = function(obj) {
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if (!obj || !obj.url) {
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return false;
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}
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var pdfobjectversion = "1.2",
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//Set reasonable defaults
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id = obj.id || "vcipdfview", width = obj.width || "100%", height = obj.height
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|| "100%", pdfOpenParams = obj.pdfOpenParams, url, pluginTypeFound,
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//declare functions
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createAXO, hasReaderActiveX, hasReader, hasGeneric, pluginFound, setCssForFullWindowPdf, buildQueryString, get, embed;
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/* ---------------------------------------------------- Supporting functions ---------------------------------------------------- */
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createAXO = function(type) {
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var ax;
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try {
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ax = new ActiveXObject(type);
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} catch (e) {
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//ensure ax remains null
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ax = null;
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}
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return ax;
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};
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//Tests specifically for Adobe Reader (aka Acrobat) in Internet Explorer
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hasReaderActiveX = function() {
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var axObj = null;
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if (window.ActiveXObject) {
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axObj = createAXO("AcroPDF.PDF");
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//If "AcroPDF.PDF" didn't work, try "PDF.PdfCtrl"
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if (!axObj) {
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axObj = createAXO("PDF.PdfCtrl");
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}
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//If either "AcroPDF.PDF" or "PDF.PdfCtrl" are found, return true
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if (axObj !== null) {
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return true;
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}
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}
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//If you got to this point, there's no ActiveXObject for PDFs
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return false;
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};
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//Tests specifically for Adobe Reader (aka Adobe Acrobat) in non-IE browsers
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hasReader = function() {
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var i, n = navigator.plugins, count = n.length, regx = /Adobe Reader|Adobe PDF|Acrobat/gi;
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for (i = 0; i < count; i++) {
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if (regx.test(n[i].name)) {
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return true;
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}
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}
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return false;
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};
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//Detects unbranded PDF support
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hasGeneric = function() {
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var plugin = navigator.mimeTypes["application/pdf"];
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return (plugin && plugin.enabledPlugin);
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};
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//Determines what kind of PDF support is available: Adobe or generic
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pluginFound = function() {
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var type = null;
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if (hasReader() || hasReaderActiveX()) {
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type = "Adobe";
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} else if (hasGeneric()) {
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type = "generic";
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}
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return type;
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};
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//If setting PDF to fill page, need to handle some CSS first
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setCssForFullWindowPdf = function() {
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var html = document.getElementsByTagName("html"), html_style, body_style;
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if (!html) {
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return false;
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}
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html_style = html[0].style;
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body_style = document.body.style;
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html_style.height = "100%";
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html_style.overflow = "hidden";
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body_style.margin = "0";
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body_style.padding = "0";
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body_style.height = "100%";
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body_style.overflow = "hidden";
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};
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//Creating a querystring for using PDF Open parameters when embedding PDF
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buildQueryString = function(pdfParams) {
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var string = "", prop;
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if (!pdfParams) {
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return string;
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}
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for (prop in pdfParams) {
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if (pdfParams.hasOwnProperty(prop)) {
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string += prop + "=";
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if (prop === "search") {
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string += encodeURI(pdfParams[prop]);
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} else {
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string += pdfParams[prop];
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}
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string += "&";
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}
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}
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//Remove last ampersand
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return string.slice(0, string.length - 1);
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};
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//Simple function for returning values from PDFObject
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get = function(prop) {
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var value = null;
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switch (prop) {
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case "url":
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value = url;
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break;
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case "id":
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value = id;
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break;
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case "width":
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value = width;
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break;
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case "height":
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value = height;
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break;
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case "pdfOpenParams":
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value = pdfOpenParams;
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break;
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case "pluginTypeFound":
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value = pluginTypeFound;
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break;
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case "pdfobjectversion":
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value = pdfobjectversion;
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break;
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}
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return value;
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};
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/* ---------------------------------------------------- PDF Embedding functions ---------------------------------------------------- */
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embed = function(targetID) {
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if (!pluginTypeFound) {
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return false;
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}
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var targetNode = null;
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if (targetID) {
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//Allow users to pass an element OR an element's ID
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targetNode = (targetID.nodeType && targetID.nodeType === 1) ? targetID
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: document.getElementById(targetID);
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//Ensure target element is found in document before continuing
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if (!targetNode) {
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return false;
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}
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} else {
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targetNode = document.body;
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setCssForFullWindowPdf();
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width = "100%";
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height = "100%";
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}
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targetNode.innerHTML = '<object data="' + url
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+ '" type="application/pdf" width="' + width + '" height="'
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+ height + '" id="' + id + '">';
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//targetNode.innerHTML +='<param name="_version" value="327680">';
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//targetNode.innerHTML +='<param name="_Extentx" value="2646">';
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//targetNode.innerHTML +='<param name="_Extenty" value="1323">';
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// targetNode.innerHTML +='<param name="_StockProps" value="0">';
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targetNode.innerHTML += '</object>';
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//style="margin-top:-70px;"
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return targetNode.getElementsByTagName("object")[0];
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};
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//The hash (#) prevents odd behavior in Windows
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//Append optional Adobe params for opening document
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url = encodeURI(obj.url) + "#" + buildQueryString(pdfOpenParams);
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pluginTypeFound = pluginFound();
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this.get = function(prop) {
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return get(prop);
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};
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this.embed = function(id) {
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return embed(id);
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};
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this.pdfobjectversion = pdfobjectversion;
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return this;
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};
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