mirror of
https://github.com/classilla/tenfourfox.git
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72 lines
2.9 KiB
JavaScript
72 lines
2.9 KiB
JavaScript
// -*- Mode: js; tab-width: 2; indent-tabs-mode: nil; js2-basic-offset: 2; js2-skip-preprocessor-directives: t; -*-
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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var PrintHelper = {
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init: function() {
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Services.obs.addObserver(this, "Print:PDF", false);
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},
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observe: function (aSubject, aTopic, aData) {
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let browser = BrowserApp.selectedBrowser;
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switch (aTopic) {
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case "Print:PDF":
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Messaging.handleRequest(aTopic, aData, (data) => {
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return this.generatePDF(browser);
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});
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break;
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}
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},
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generatePDF: function(aBrowser) {
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// Create the final destination file location
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let fileName = ContentAreaUtils.getDefaultFileName(aBrowser.contentTitle, aBrowser.currentURI, null, null);
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fileName = fileName.trim() + ".pdf";
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let file = Services.dirsvc.get("TmpD", Ci.nsIFile);
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file.append(fileName);
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file.createUnique(file.NORMAL_FILE_TYPE, parseInt("666", 8));
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let printSettings = Cc["@mozilla.org/gfx/printsettings-service;1"].getService(Ci.nsIPrintSettingsService).newPrintSettings;
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printSettings.printSilent = true;
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printSettings.showPrintProgress = false;
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printSettings.printBGImages = false;
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printSettings.printBGColors = false;
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printSettings.printToFile = true;
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printSettings.toFileName = file.path;
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printSettings.printFrameType = Ci.nsIPrintSettings.kFramesAsIs;
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printSettings.outputFormat = Ci.nsIPrintSettings.kOutputFormatPDF;
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let webBrowserPrint = aBrowser.contentWindow.QueryInterface(Ci.nsIInterfaceRequestor).getInterface(Ci.nsIWebBrowserPrint);
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return new Promise((resolve, reject) => {
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webBrowserPrint.print(printSettings, {
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onStateChange: function(webProgress, request, stateFlags, status) {
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// We get two STATE_START calls, one for STATE_IS_DOCUMENT and one for STATE_IS_NETWORK
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if (stateFlags & Ci.nsIWebProgressListener.STATE_START && stateFlags & Ci.nsIWebProgressListener.STATE_IS_NETWORK) {
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// Let the user know something is happening. Generating the PDF can take some time.
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NativeWindow.toast.show(Strings.browser.GetStringFromName("alertPrintjobToast"), "long");
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}
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// We get two STATE_STOP calls, one for STATE_IS_DOCUMENT and one for STATE_IS_NETWORK
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if (stateFlags & Ci.nsIWebProgressListener.STATE_STOP && stateFlags & Ci.nsIWebProgressListener.STATE_IS_NETWORK) {
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if (Components.isSuccessCode(status)) {
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// Send the details to Java
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resolve({ file: file.path, title: fileName });
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} else {
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reject();
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}
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}
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},
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onProgressChange: function () {},
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onLocationChange: function () {},
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onStatusChange: function () {},
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onSecurityChange: function () {},
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});
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});
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}
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};
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