- Prompt for PDF tools installation if necessary when attempting to reindex PDF

- Display "Reindex Item" icon even if PDF tools aren't installed (including for non-PDF attachments)
- Display file modification time rather than item modification time in attachment pane

chrome/content/zotero/bindings/attachmentbox.xml

@@ -155,7 +155,7 @@
 					var urlField = this._id('url');
 					var accessed = this._id('accessedRow');
 					var pagesRow = this._id('pagesRow');
-					var dateModifiedRow = this._id('dateModified');
+					var dateModifiedRow = this._id('dateModifiedRow');
 					var indexStatusRow = this._id('indexStatusRow');
 					var selectButton = this._id('select-button');
 					
@@ -259,6 +259,7 @@
 						var fileName = this.item.getFilename();
 						
 						if (fileName) {
+							// TODO: localize
 							this._id("fileName-label").value = "Filename: ";
 							this._id("fileName").value = fileName;
 							fileNameRow.hidden = false;
@@ -294,9 +295,17 @@
 					
 					if (this.displayDateModified) {
 						this._id("dateModified-label").value = Zotero.getString('itemFields.dateModified')+': ';
-						this._id("dateModified").value = Zotero.Date.sqlToDate(
+						var mtime = this.item.attachmentModificationTime;
+						if (mtime) {
+							this._id("dateModified").value = new Date(mtime).toLocaleString();
+						}
+						// Use the item's mod time as a backup (e.g., when sync
+						// passes in the mod time for the nonexistent remote file)
+						else {
+							this._id("dateModified").value = Zotero.Date.sqlToDate(
 								this.item.getField('dateModified'), true
 							).toLocaleString();
+						}
 						dateModifiedRow.hidden = false;
 					}
 					else {
@@ -497,9 +506,7 @@
 					var str = Zotero.getString('pane.items.menu.reindexItem');
 					reindexButton.setAttribute('tooltiptext', str);
 					
-					if (this.editable &&
-							Zotero.Fulltext.pdfConverterIsRegistered() &&
-							Zotero.Fulltext.canReindex(this.item.id)) {
+					if (this.editable && Zotero.Fulltext.canReindex(this.item.id)) {
 						reindexButton.setAttribute('hidden', false);
 					}
 					else {

chrome/content/zotero/overlay.js

@@ -1229,11 +1229,57 @@ var ZoteroPane = new function()
 	}
 	
 	
+	this.checkPDFConverter = function () {
+		if (Zotero.Fulltext.pdfConverterIsRegistered()) {
+			return true;
+		}
+		
+		var ps = Components.classes["@mozilla.org/embedcomp/prompt-service;1"]
+			.getService(Components.interfaces.nsIPromptService);
+		var buttonFlags = (ps.BUTTON_POS_0) * (ps.BUTTON_TITLE_IS_STRING)
+			+ (ps.BUTTON_POS_1) * (ps.BUTTON_TITLE_CANCEL);
+		var index = ps.confirmEx(
+			null,
+			// TODO: localize
+			"PDF Tools Not Installed",
+			"To use this feature, you must first install the PDF tools in "
+				+ "the Zotero preferences.",
+			buttonFlags,
+			"Open Preferences",
+			null, null, null, {}
+		);
+		if (index == 0) {
+			ZoteroPane.openPreferences('zotero-prefpane-search', 'pdftools-install');
+		}
+		return false;
+	}
+	
+	
 	function reindexItem() {
-		var itemIDs = this.getSelectedItems(true);
-		if (!itemIDs) {
+		var items = this.getSelectedItems();
+		if (!items) {
 			return;
 		}
+		
+		var itemIDs = [];
+		var checkPDF = false;
+		for (var i=0; i<items.length; i++) {
+			// If any PDFs, we need to make sure the converter is installed and
+			// prompt for installation if not
+			if (!checkPDF && items[i].attachmentMIMEType && items[i].attachmentMIMEType == "application/pdf") {
+				checkPDF = true;
+			}
+			itemIDs.push(items[i].id);
+		}
+		
+		if (checkPDF) {
+			var installed = this.checkPDFConverter();
+			if (!installed) {
+				document.getElementById('zotero-attachment-box').updateItemIndexedState();
+				return;
+			}
+		}
+		
 		Zotero.Fulltext.indexItems(itemIDs, true);
 		document.getElementById('zotero-attachment-box').updateItemIndexedState();
 	}

chrome/content/zotero/recognizePDF.js

@@ -51,24 +51,8 @@ var Zotero_RecognizePDF = new function() {
 	 * of the new items
 	 */
 	this.recognizeSelected = function() {
-		if (!Zotero.Fulltext.pdfConverterIsRegistered()) {
-			var ps = Components.classes["@mozilla.org/embedcomp/prompt-service;1"]
-				.getService(Components.interfaces.nsIPromptService);
-			var buttonFlags = (ps.BUTTON_POS_0) * (ps.BUTTON_TITLE_IS_STRING)
-				+ (ps.BUTTON_POS_1) * (ps.BUTTON_TITLE_CANCEL);
-			var index = ps.confirmEx(
-				null,
-				// TODO: localize
-				"PDF Tools Not Installed",
-				"To use this feature, you must first install the PDF tools in "
-					+ "the Zotero preferences.",
-				buttonFlags,
-				"Open Preferences",
-				null, null, null, {}
-			);
-			if (index == 0) {
-				ZoteroPane.openPreferences('zotero-prefpane-search', 'pdftools-install');
-			}
+		var installed = ZoteroPane.checkPDFConverter();
+		if (!installed) {
 			return;
 		}