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Create Bibliography: Use HiddenBrowser to fix printing

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Abe Jellinek 2024-05-03 12:02:47 -04:00 • committed by Dan Stillman
parent 120d4cfacd
commit 8e7d9927ef
1 changed files with 20 additions and 39 deletions
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59
chrome/content/zotero/fileInterface.js
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@ -27,6 +27,10 @@ Components.utils.import("resource://gre/modules/Services.jsm");
var { FilePicker } = ChromeUtils.importESModule('chrome://zotero/content/modules/filePicker.mjs');
import { ImportCitaviAnnotatons } from 'zotero/import/citavi';
XPCOMUtils.defineLazyModuleGetters(globalThis, {
HiddenBrowser: 'chrome://zotero/content/HiddenBrowser.jsm',
});
/****Zotero_File_Exporter****
**
* A class to handle exporting of items, collections, or the entire library
@ -881,46 +885,23 @@ var Zotero_File_Interface = new function() {
}
if(io.method == "print") {
// printable bibliography, using a hidden browser
var browser = Zotero.Browser.createHiddenBrowser(window);
var listener = function() {
if(browser.contentDocument.location.href == "about:blank") return;
browser.removeEventListener("pageshow", listener, false);
// this is kinda nasty, but we have to temporarily modify the user's
// settings to eliminate the header and footer. the other way to do
// this would be to attempt to print with an embedded browser, but
// it's not even clear how to attempt to create one
var prefService = Components.classes["@mozilla.org/preferences-service;1"].
getService(Components.interfaces.nsIPrefBranch);
var prefsToClear = ["print.print_headerleft", "print.print_headercenter",
"print.print_headerright", "print.print_footerleft",
"print.print_footercenter", "print.print_footerright"];
var oldPrefs = [];
for(var i in prefsToClear) {
oldPrefs[i] = prefService.getCharPref(prefsToClear[i]);
prefService.setCharPref(prefsToClear[i], "");
}
// print
browser.contentWindow.print();
// set the prefs back
for(var i in prefsToClear) {
prefService.setCharPref(prefsToClear[i], oldPrefs[i]);
}
// TODO can't delete hidden browser object here or else print will fail...
}
browser.addEventListener("pageshow", listener, false);
browser.loadURI(
Services.io.newURI("data:text/html;charset=utf-8," + encodeURI(bibliography)),
{
flags: Components.interfaces.nsIWebNavigation.LOAD_FLAGS_BYPASS_HISTORY
}
let browser = new HiddenBrowser({
useHiddenFrame: false
});
await browser.load(
"data:text/html;charset=utf-8," + encodeURIComponent(bibliography)
);
await browser.print({
overrideSettings: {
headerStrLeft: "",
headerStrCenter: "",
headerStrRight: "",
footerStrLeft: "",
footerStrCenter: "",
footerStrRight: "",
}
});
browser.destroy();
} else if(io.method == "save-as-html") {
let fStream = await _saveBibliography(name, "HTML");