Tweaks to trash functionality for collections and searches

- Use SVG icons
- Show "[x] collection selected" or "[x] searches selected" in the item pane
- Show "[x] objects selected" if multiple types are selected, which I
  don't love, but I don't have a better idea
- Use existing strings for ARIA labels

chrome/content/zotero/elements/itemPane.js

@@ -222,19 +222,30 @@
 			// Display label in the middle of the item pane
 			else {
 				if (count) {
-					if (count == 1) {
+					let key;
-						let item = this.data[0];
+					// In the trash, we have to check the object type
-						// If a collection or search is selected, it must be in the trash.
+					if (this.collectionTreeRow.isTrash()) {
-						if (item.isCollection()) {
+						let obj = this.data[0];
-							let subcollectionsCount = item.getDescendents(false, 'collection', true).length;
+						if (this.data.every(x => x.isCollection())) {
-							msg = Zotero.getString('pane.collections.deletedCollection', subcollectionsCount);
+							key = 'item-pane-message-collections-selected';
 						}
-						else if (item.isSearch()) {
+						else if (this.data.every(x => x.isSearch())) {
-							msg = Zotero.getString('pane.collections.deletedSearch');
+							key = 'item-pane-message-searches-selected';
+						}
+						else if (this.data.every(x => x.isItem())) {
+							key = 'item-pane-message-items-selected';
+						}
+						else {
+							key = 'item-pane-message-objects-selected';
 						}
 					}
-					
+					else {
-					msg = Zotero.getString('pane.item.selected.multiple', count);
+						key = 'item-pane-message-items-selected';
+					}
+					// TODO: Add mechanism for this to setItemPaneMessage()
+					let elem = document.createXULElement('description');
+					document.l10n.setAttributes(elem, key, { count });
+					msg = elem;
 				}
 				else {
 					let rowCount = this.itemsView.rowCount;

chrome/content/zotero/itemTree.jsx

@@ -2813,10 +2813,13 @@ var ItemTree = class ItemTree extends LibraryTree {
 
 		let itemTypeAriaLabel;
 		try {
-			if (item.isSearch() || item.isCollection()) {
 			// Special treatment for trashed collections or searches since they are not an actual
 			// item and do not have an item type
-				itemTypeAriaLabel = Zotero.getString(`pane.collections.deleted${item._ObjectType}Aria`) + '.';
+			if (item.isSearch()) {
+				itemTypeAriaLabel = Zotero.getString('searchConditions.collection') + '.';
+			}
+			else if (item.isCollection()) {
+				itemTypeAriaLabel = Zotero.getString('searchConditions.savedSearch') + '.';
 			}
 			else {
 				var itemType = Zotero.ItemTypes.getName(item.itemTypeID);
@@ -3823,20 +3826,16 @@ var ItemTree = class ItemTree extends LibraryTree {
 	_getIcon(index) {
 		var item = this.getRow(index).ref;
 		
-		// TEMP
+		// Non-item objects that can be appear in the trash
 		if (item.isCollection() || item.isSearch()) {
-			let iconClsName;
+			let icon;
 			if (item.isCollection()) {
-				iconClsName = "IconTreeitemCollection";
+				icon = getCSSIcon('collection');
 			}
-			if (item.isSearch()) {
+			else if (item.isSearch()) {
-				iconClsName = "IconTreeitemSearch";
+				icon = getCSSIcon('search');
-			}
-			var icon = getDOMElement(iconClsName);
-			if (!icon) {
-				Zotero.debug('Could not find tree icon for "' + itemType + '"');
-				return document.createElement('span');
 			}
+			icon.classList.add('icon-item-type');
 			return icon;
 		}
 		

chrome/content/zotero/xpcom/data/collection.js

@@ -691,7 +691,7 @@ Zotero.Collection.prototype.trash = Zotero.Promise.coroutine(function* (env) {
 });
 
 /**
-* Completely erases the collection and it's descendants.
+* Completely erase the collection and its descendants.
 **/
 Zotero.Collection.prototype._eraseData = Zotero.Promise.coroutine(function* (env) {
 	Zotero.DB.requireTransaction();

chrome/locale/en-US/zotero/zotero.ftl

@@ -509,3 +509,20 @@ item-pane-header-bibEntry =
     .label = Bibliography Entry
 item-pane-header-more-options =
     .label = More Options
+
+item-pane-message-items-selected = { $count ->
+                                             [one] { $count } item selected
+                                            *[other] { $count } items selected
+                                    }
+item-pane-message-collections-selected = { $count ->
+                                             [one] { $count } collection selected
+                                            *[other] { $count } collections selected
+                                         }
+item-pane-message-searches-selected = { $count ->
+                                          [one] { $count } search selected
+                                         *[other] { $count } searches selected
+                                      }
+item-pane-message-objects-selected = { $count ->
+                                          [one] { $count } object selected
+                                         *[other] { $count } objects selected
+                                      }

chrome/locale/en-US/zotero/zotero.properties

@@ -276,10 +276,6 @@ pane.collections.retracted     = Retracted Items
 pane.collections.duplicate		= Duplicate Items
 pane.collections.removeLibrary = Remove Library
 pane.collections.removeLibrary.text = Are you sure you want to permanently remove “%S” from this computer?
-pane.collections.deletedCollection	= Deleted collection with %1$S subcollections
-pane.collections.deletedCollectionAria	= Deleted collection
-pane.collections.deletedSearch = Deleted search
-pane.collections.deletedSearchAria = Deleted search
 
 pane.collections.menu.duplicate.savedSearch       = Duplicate Saved Search
 pane.collections.menu.remove.library = Remove Library…

scss/components/_item-tree.scss

@@ -270,6 +270,12 @@ $-attachmentIcons: (
 	attachment-video
 );
 
+// Non-item objects that can appear in the trash
+$-trashableObjectIcons: (
+	"collection",
+	"search"
+);
+
 .icon-item-type {
 	width: 16px;
 	height: 16px;
@@ -320,5 +326,11 @@ $-attachmentIcons: (
 				background-origin: content-box;
 			}
 		}
+		
+		@each $icon in $-trashableObjectIcons {
+			.icon-css.icon-#{$icon} {
+				@include svgicon($icon, $color, "16", "collection-tree");
+			}
+		}
 	}
 }