/**
* Version 2.1
* -Contributors: "mindinquiring" : filter to exclude any stylesheet other than print.
* Tested ONLY in IE 8 and FF 3.6. No official support for other browsers, but will
* TRY to accomodate challenges in other browsers.
* Example:
* Print Button:
Print
* Print Area :
... html ...
* Javascript :
* options are passed as json (json example: {mode: "popup", popClose: false})
*
* {OPTIONS} | [type] | (default), values | Explanation
* --------- | --------- | ---------------------- | -----------
* @mode | [string] | ("iframe"),"popup" | printable window is either iframe or browser popup
* @popHt | [number] | (500) | popup window height
* @popWd | [number] | (400) | popup window width
* @popX | [number] | (500) | popup window screen X position
* @popY | [number] | (500) | popup window screen Y position
* @popTitle | [string] | ('') | popup window title element
* @popClose | [boolean] | (false),true | popup window close after printing
* @strict | [boolean] | (undefined),true,false | strict or loose(Transitional) html 4.01 document standard or undefined to not include at all (only for popup option)
*/
(function ($) {
var counter = 0;
var modes = { iframe: "iframe", popup: "popup" };
var defaults = { mode: modes.iframe,
popHt: 500,
popWd: 400,
popX: 200,
popY: 200,
popTitle: '',
popClose: false
};
var settings = {}; //global settings
$.fn.printArea = function (options) {
$.extend(settings, defaults, options);
counter++;
var idPrefix = "printArea_";
$("[id^=" + idPrefix + "]").remove();
var ele = getFormData($(this));
settings.id = idPrefix + counter;
var writeDoc;
var printWindow;
switch (settings.mode) {
case modes.iframe:
var f = new Iframe();
writeDoc = f.doc;
printWindow = f.contentWindow || f;
break;
case modes.popup:
printWindow = new Popup();
writeDoc = printWindow.doc;
}
writeDoc.open();
writeDoc.write(docType() + "" + getHead() + getBody(ele) + "");
writeDoc.close();
printWindow.focus();
printWindow.print();
if (settings.mode == modes.popup && settings.popClose)
printWindow.close();
}
function docType() {
if (settings.mode == modes.iframe || !settings.strict) return "";
var standard = settings.strict == false ? " Trasitional" : "";
var dtd = settings.strict == false ? "loose" : "strict";
return '';
}
function getHead() {
var head = "" + settings.popTitle + "";
$(document).find("link")
.filter(function () {
return $(this).attr("rel").toLowerCase() == "stylesheet";
})
.filter(function () { // this filter contributed by "mindinquiring"
var media = $(this).attr("media");
return (media.toLowerCase() == "" || media.toLowerCase() == "print")
})
.each(function () {
head += '';
});
head += "";
return head;
}
function getBody(printElement) {
return '
' + $(printElement).html() + '
';
}
function getFormData(ele) {
$("input,select,textarea", ele).each(function () {
// In cases where radio, checkboxes and select elements are selected and deselected, and the print
// button is pressed between select/deselect, the print screen shows incorrectly selected elements.
// To ensure that the correct inputs are selected, when eventually printed, we must inspect each dom element
var type = $(this).attr("type");
if (type == "radio" || type == "checkbox") {
if ($(this).is(":not(:checked)")) this.removeAttribute("checked");
else this.setAttribute("checked", true);
}
else if (type == "text")
this.setAttribute("value", $(this).val());
else if (type == "select-multiple" || type == "select-one")
$(this).find("option").each(function () {
if ($(this).is(":not(:selected)")) this.removeAttribute("selected");
else this.setAttribute("selected", true);
});
else if (type == "textarea") {
var v = $(this).attr("value");
if ($.browser.mozilla) {
if (this.firstChild) this.firstChild.textContent = v;
else this.textContent = v;
}
else this.innerHTML = v;
}
});
return ele;
}
function Iframe() {
var frameId = settings.id;
var iframeStyle = 'border:0;position:absolute;width:0px;height:0px;left:0px;top:0px;';
var iframe;
try {
iframe = document.createElement('iframe');
document.body.appendChild(iframe);
$(iframe).attr({ style: iframeStyle, id: frameId, src: "" });
iframe.doc = null;
iframe.doc = iframe.contentDocument ? iframe.contentDocument : (iframe.contentWindow ? iframe.contentWindow.document : iframe.document);
}
catch (e) { throw e + ". iframes may not be supported in this browser."; }
if (iframe.doc == null) throw "Cannot find document.";
return iframe;
}
function Popup() {
var windowAttr = "location=0,statusbar=0,directories=0,menubar=0,titlebar=0,toolbar=0,dependent=0";
windowAttr += ",width=" + settings.popWd + ",height=" + settings.popHt;
windowAttr += ",resizable=yes,screenX=" + settings.popX + ",screenY=" + settings.popY + ",personalbar=0,scrollbars=1";
var newWin = window.open("", "_blank", windowAttr);
newWin.doc = newWin.document;
return newWin;
}
})(jQuery);