Add "Export PDF" options to File menu

Quick implementation, but works on parent items or PDF attachments

Currently always includes annotations, but we'll want that to be an
option

chrome/content/zotero/standalone/standalone.js

@@ -143,6 +143,46 @@ const ZoteroStandalone = new function() {
 		}
 		catch (e) {}
 		this.updateMenuItemEnabled('manage-attachments-menu', active);
+		
+		// TEMP: Quick implementation
+		try {
+			let menuitem = document.getElementById('menu_export_files');
+			let sep = menuitem.nextSibling;
+			
+			let zp = Zotero.getActiveZoteroPane();
+			if (zp) {
+				let numFiles = zp.getSelectedItems().reduce((num, item) => {
+					if (item.isPDFAttachment()) {
+						return num + 1;
+					}
+					if (item.isRegularItem()) {
+						return num + item.numPDFAttachments();
+					}
+					return num;
+				}, 0);
+				if (numFiles) {
+					menuitem.hidden = false;
+					sep.hidden = false;
+					if (numFiles == 1) {
+						menuitem.label = 'Export PDF…';
+					}
+					else {
+						menuitem.label = 'Export PDFs…';
+					}
+				}
+				else {
+					menuitem.hidden = true;
+					sep.hidden = true;
+				}
+			}
+			else {
+				menuitem.hidden = true;
+				sep.hidden = true;
+			}
+		}
+		catch (e) {
+			Zotero.logError(e);
+		}
 	};
 	
 	

chrome/content/zotero/standalone/standalone.xul

@@ -147,7 +147,10 @@
 									command="cmd_zotero_newStandaloneNote"/>
 							<menuitem id="menu_newCollection" class="menu-type-library" label="&zotero.toolbar.newCollection.label;"
 									command="cmd_zotero_newCollection"/>
-							<menuitem label="Save As" class="menu-type-reader" oncommand="ZoteroStandalone.onReaderCmd('export')"/>
+							<!-- TODO: Localize -->
+							<menuitem id="menu_export_file" class="menu-type-reader"
+									label="Save As…"
+									oncommand="ZoteroStandalone.onReaderCmd('export')"/>
 							<menuitem label="Print" class="menu-type-reader" oncommand="ZoteroStandalone.onReaderCmd('print')"/>
 							<menuseparator/>
 							<menuitem id="menu_close" class="menu-type-library" label="&closeCmd.label;" key="key_close"
@@ -155,6 +158,10 @@
 							<menuitem id="menu_close_tab" class="menu-type-reader" label="&closeCmd.label;" key="key_close"
 									accesskey="&closeCmd.accesskey;" oncommand="Zotero_Tabs.close()"/>
 							<menuseparator class="menu-type-library"/>
+							<menuitem id="menu_export_files" class="menu-type-library"
+									oncommand="ZoteroPane.exportSelectedFiles()"
+									hidden="true"/>
+							<menuseparator class="menu-type-library" hidden="true"/>
 							<menuitem id="menu_import" class="menu-type-library" label="&importCmd.label;"
 									command="cmd_zotero_import" key="key_import"/>
 							<menuitem id="menu_importFromClipboard" class="menu-type-library" label="&importFromClipboardCmd.label;"

chrome/content/zotero/zoteroPane.js

@@ -4758,13 +4758,14 @@ var ZoteroPane = new function()
 	
 	this.exportPDF = async function (itemID) {
 		let item = await Zotero.Items.getAsync(itemID);
-		if (!item || !item.isAttachment()) {
-			throw new Error('Item ' + itemID + ' is not attachment');
+		if (!item || !item.isPDFAttachment()) {
+			throw new Error('Item ' + itemID + ' is not a PDF attachment');
 		}
 		let filename = item.attachmentFilename;
 		
 		var fp = new FilePicker();
-		fp.init(window, Zotero.getString('styles.editor.save'), fp.modeSave);
+		// TODO: Localize
+		fp.init(window, "Export File", fp.modeSave);
 		fp.appendFilter("PDF", "*.pdf");
 		fp.defaultString = filename;
 		
@@ -4776,6 +4777,50 @@ var ZoteroPane = new function()
 	};
 	
 	
+	// TEMP: Quick implementation
+	this.exportSelectedFiles = async function () {
+		var items = ZoteroPane.getSelectedItems()
+			.reduce((arr, item) => {
+				if (item.isPDFAttachment()) {
+					return arr.concat([item]);
+				}
+				if (item.isRegularItem()) {
+					return arr.concat(item.getAttachments()
+						.map(x => Zotero.Items.get(x))
+						.filter(x => x.isPDFAttachment()));
+				}
+				return arr;
+			}, []);
+		// Deduplicate, in case parent and child items are both selected
+		items = [...new Set(items)];
+		
+		if (!items.length) return;
+		if (items.length == 1) {
+			await this.exportPDF(items[0].id);
+			return;
+		}
+		
+		var fp = new FilePicker();
+		// TODO: Localize
+		fp.init(window, "Export Files", fp.modeGetFolder);
+		
+		var rv = await fp.show();
+		if (rv === fp.returnOK || rv === fp.returnReplace) {
+			let folder = fp.file;
+			for (let item of items) {
+				let outputFile = OS.Path.join(folder, item.attachmentFilename);
+				if (await OS.File.exists(outputFile)) {
+					let newNSIFile = Zotero.File.pathToFile(outputFile);
+					newNSIFile.createUnique(Components.interfaces.nsIFile.NORMAL_FILE_TYPE, 0o644);
+					outputFile = newNSIFile.path;
+					newNSIFile.remove(null);
+				}
+				await Zotero.PDFWorker.export(item.id, outputFile, true);
+			}
+		}
+	};
+	
+	
 	this.renameSelectedAttachmentsFromParents = Zotero.Promise.coroutine(function* () {
 		// TEMP: fix