将html转换成PDF 转载

/*
Convert HTML to PDF with mozilla rendering engine.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
USA
Michele Baldessari <mich...
@pupazzo.org> 2006
Huang Ying <huang.ying.cari...
@gmail.com> 2008
*/
function WebProgressListener() {
var self = this;
}

WebProgressListener.prototype.
QueryInterface = function(iid) {
var self = this;
if (iid.equals(Components.interfaces.nsIWebProgressListener) ||
iid.equals(Components.interfaces.nsISupportsWeakReference) ||
iid.equals(Components.interfaces.nsISupports))
return self;
throw Components.results.NS_ERROR_NO_INTERFACE;
};

WebProgressListener.prototype.
onStateChange = function(webProgress, request, stateFlags, status) {
var self = this;
const WPL = Components.interfaces.nsIWebProgressListener;
if (stateFlags & WPL.STATE_STOP) {
if ("onDone" in self)
self.onDone();
if (stateFlags & WPL.STATE_IS_NETWORK)
if ("onNetworkDone" in self)
self.onNetworkDone();
}
};

WebProgressListener.prototype.
onProgressChange = function(webProgress, request, curSelf, maxSelf,
curTotal, maxTotal) { };
WebProgressListener.prototype.
onLocationChange = function(webProgress, request, location) { };
WebProgressListener.prototype.
onStatusChange = function(webProgress, request, status, message) { };
WebProgressListener.protot