Print iframe content in Opera and Chrome
I'm trying to print iframe content.
contentWindow.focus();
contentWindow.print();
This code works in IE, Firefox and Safari. But don't work in Chro开发者_JS百科me and Opera. These browsers print entire page.
I tried to use this topic How do I print an IFrame from javascript in Safari/Chrome. But it didn't help me.
Could someone help me?
This is a known bug in Opera. In addition to the above ideas for workarounds, you may want to play with something like this:
var clone=document.documentElement.cloneNode(true)
var win=window.open('about:blank');
win.document.replaceChild(clone, win.document.documentElement);
win.print();
I have not tested this but it should create a copy of the page in a popup window and print it, without having to load the content a second time from the server or loosing any DOM modifications you may want printed.
As I understand, it's impossible to implement iframe printing without opening new window.
My print function:
if ($.browser.opera || (/chrome/.test(navigator.userAgent.toLowerCase()))) {
var href = contentWindow.location.href;
href = href.indexOf("?") > -1 ? href + "&print=1" : href + "?print=1";
var printWindow = window.open(href, "printWindow", "scrollbars=yes");
printWindow.focus();
}
else {
contentWindow.focus();
contentWindow.print();
}
Also I added the following code to the end of the body (when print==1):
<script type='text/javascript'>
function invokePrint() {
if (document.readyState && document.readyState!='complete')
setTimeout(function() { invokePrint(); }, 50);
else if (document.body && document.body.innerHTML=='false')
setTimeout(function() { invokePrint(); }, 50);
else {
focus();
print();
}
}
invokePrint();
</script>
I cannot reproduce your problem with Chrome. Opera, however, does indeed still print the entire outer page when trying to only print the iframe.
I have devised a workaround and although it does work mostly, it is not 100% failsafe (amongst others because Opera wraps lines for printing; I don't know how to calculate the correct height in such cases). That said, the following code works at least reasonable (using jQuery for convenience):
if ($.browser.opera) {
var ifr = $('#youriframe');
var ifrbody = ifr.get(0).contentDocument.body;
var sheet = $([
'<style type="text/css" media="print">',
'body * {',
' display: none;',
'}',
'#youriframe {',
' border: none;',
' display: block;',
' height: ', ifrbody.scrollHeight, 'px;',
' margin: 0px;',
' padding: 0px;',
' width: ', ifrbody.scrollWidth, 'px;',
'}',
'<\/style>'
].join(''));
$('head').append(sheet);
window.print();
sheet.remove();
}
Hope this helps.
I tried above code and after making changes to the above codes I came with conclusive code as follows
var win=window.open('about:blank');
win.document.write('<html><head></head><body>');
win.document.write('<iframe frameBorder="0" align="center" src="'+window.location.href+'" onload="test()" style="width: 619px; height: 482px;"></iframe>');
win.document.write('<scr'+'ipt>function test(){window.focus();window.print()}</sc'+'ript></body></html>');
win.document.close();
if (window.focus) {win.focus()}
try this one
加载中,请稍侯......
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