Allow restoring of deleted files

services/web/app/views/project/editor/file-tree.jade

@@ -39,12 +39,30 @@ aside#file-tree(ng-controller="FileTreeController")
 			)
 				i.fa.fa-trash-o
 
-	ul.list-unstyled.file-tree-list
-		file-entity(
-			entity="entity",
-			ng-repeat="entity in rootFolder.children | orderBy:[orderByFoldersFirst, 'name']"
-		)
+	.file-tree-inner
+		ul.list-unstyled.file-tree-list
+			file-entity(
+				entity="entity",
+				ng-repeat="entity in rootFolder.children | orderBy:[orderByFoldersFirst, 'name']"
+			)
 
+		div(ng-show="deletedDocs.length > 0 && ui.view == 'track-changes'")
+			h3 Deleted Files
+			ul.list-unstyled.file-tree-list.deleted-docs
+				li(
+					ng-class="{ 'selected': entity.selected }",
+					ng-repeat="entity in deletedDocs | orderBy:'name'",
+					ng-controller="FileTreeEntityController"
+				)
+					.entity
+						.entity-name(
+							ng-click="select()"
+						)
+							//- Just a spacer to align with folders
+							i.fa.fa-fw.toggle
+							i.fa.fa-fw.fa-file
+
+							span  {{ entity.name }}
 
 script(type='text/ng-template', id='entityListItemTemplate')
 	li(

services/web/app/views/project/editor/track-changes.jade

@@ -64,16 +64,25 @@ div#trackChanges(ng-show="ui.view == 'track-changes'")
 				i.fa.fa-spin.fa-refresh
 				|   Loading...
 
-	.diff.full-size
+	.diff.full-size(ng-controller="TrackChangesDiffController")
 		.diff-editor.hide-ace-cursor(
 			ace-editor,
-			ng-show="!!trackChanges.diff && !trackChanges.diff.loading",
+			ng-show="!!trackChanges.diff && !trackChanges.diff.loading && !trackChanges.diff.deleted",
 			theme="settings.theme",
 			font-size="settings.fontSize",
 			text="trackChanges.diff.text",
 			annotations="trackChanges.diff.annotations",
 			read-only="true"
 		)
+		.diff-deleted.text-centered(
+			ng-show="trackChanges.diff.deleted"
+		)
+			p.text-serif {{ trackChanges.diff.doc.name }} has been deleted.
+			p 
+				a.btn.btn-primary.btn-lg(
+					href,
+					ng-click="restoreDeletedDoc()"
+				) Restore
 		.loading-panel(ng-show="trackChanges.diff.loading")
 			i.fa.fa-spin.fa-refresh
 			|   Loading...

services/web/public/coffee/app/ide/editor/EditorManager.coffee

@@ -32,6 +32,8 @@ define [
 			@openDoc(doc)
 
 		openDoc: (doc, options = {}) ->
+			@$scope.ui.view = "editor"
+			
 			console.log "Trying to open doc", doc.id
 			return if doc.id == @$scope.editor.open_doc_id and !options.forceReopen
 			@$scope.editor.open_doc_id = doc.id

services/web/public/coffee/app/ide/file-tree/FileTreeManager.coffee

@@ -10,6 +10,7 @@ define [
 		constructor: (@ide, @$scope) ->
 			@$scope.$on "project:joined", =>
 				@loadRootFolder()
+				@loadDeletedDocs()
 				@$scope.$emit "file-tree:initialized"
 
 			@_bindToSocketEvents()
@@ -67,8 +68,15 @@ define [
 				entity.selected = false
 			entity.selected = true
 
-		findEntityById: (id) ->
-			@_findEntityByIdInFolder @$scope.rootFolder, id
+		findEntityById: (id, options = {}) ->
+			entity = @_findEntityByIdInFolder @$scope.rootFolder, id
+			return entity if entity?
+
+			if options.includeDeleted
+				for entity in @$scope.deletedDocs
+					return entity if entity.id == id
+
+			return null
 
 		_findEntityByIdInFolder: (folder, id) ->
 			for entity in folder.children or []
@@ -83,6 +91,9 @@ define [
 		forEachEntity: (callback = (entity, parent_folder) ->) ->
 			@_forEachEntityInFolder(@$scope.rootFolder, callback)
 
+			for entity in @$scope.deletedDocs or []
+				callback(entity)
+
 		_forEachEntityInFolder: (folder, callback) ->
 			for entity in folder.children or []
 				callback(entity, folder)
@@ -127,6 +138,16 @@ define [
 
 			return folder
 
+		loadDeletedDocs: () ->
+			@$scope.deletedDocs = []
+			for doc in @$scope.project.deletedDocs
+				@$scope.deletedDocs.push {
+					name: doc.name
+					id:   doc._id
+					type: "doc"
+					deleted: true
+				}
+
 		getCurrentFolder: () ->
 			# Return the root folder if nothing is selected
 			@_getCurrentFolder(@$scope.rootFolder) or @$scope.rootFolder
@@ -201,6 +222,10 @@ define [
 				if index > -1
 					parent_folder.children.splice(index, 1)
 
+			if entity.type == "doc"
+				entity.deleted = true
+				@$scope.deletedDocs.push entity
+
 		_moveEntityInScope: (entity, parent_folder) ->
 			return if entity in parent_folder.children
 			@_deleteEntityFromScope(entity)

services/web/public/coffee/app/ide/track-changes/TrackChangesManager.coffee

@@ -1,5 +1,6 @@
 define [
-	"ide/track-changes/TrackChangesListController"
+	"ide/track-changes/controllers/TrackChangesListController"
+	"ide/track-changes/controllers/TrackChangesDiffController"
 	"ide/track-changes/directives/infiniteScroll"
 ], () ->
 	class TrackChangesManager
@@ -96,24 +97,34 @@ define [
 				fromV:   fromV
 				toV:     toV
 				doc:     doc
-				loading: true
 				error:   false
 			}
 
-			url = "/project/#{@$scope.project_id}/doc/#{diff.doc.id}/diff"
-			if diff.fromV? and diff.toV?
-				url += "?from=#{diff.fromV}&to=#{diff.toV}"
+			if !doc.deleted
+				diff.loading = true
+				url = "/project/#{@$scope.project_id}/doc/#{diff.doc.id}/diff"
+				if diff.fromV? and diff.toV?
+					url += "?from=#{diff.fromV}&to=#{diff.toV}"
 
-			@ide.$http
-				.get(url)
-				.success (data) =>
-					diff.loading = false
-					{text, annotations} = @_parseDiff(data)
-					diff.text = text
-					diff.annotations = annotations
-				.error () ->
-					diff.loading = false
-					diff.error = true
+				@ide.$http
+					.get(url)
+					.success (data) =>
+						diff.loading = false
+						{text, annotations} = @_parseDiff(data)
+						diff.text = text
+						diff.annotations = annotations
+					.error () ->
+						diff.loading = false
+						diff.error = true
+			else
+				diff.deleted = true
+				console.log "DOC IS DELETED - NO DIFF FOR YOU!"
+
+		restoreDeletedDoc: (doc) ->
+			@ide.$http.post "/project/#{@$scope.project_id}/doc/#{doc.id}/restore", {
+				name: doc.name
+				_csrf: window.csrfToken
+			}
 
 		_parseDiff: (diff) ->
 			row    = 0
@@ -170,7 +181,7 @@ define [
 
 			for update in updates
 				for doc_id, doc of update.docs or {}
-					doc.entity = @ide.fileTreeManager.findEntityById(doc_id)
+					doc.entity = @ide.fileTreeManager.findEntityById(doc_id, includeDeleted: true)
 
 				for user in update.meta.users or []
 					user.hue = @ide.onlineUsersManager.getHueForUserId(user.id)
@@ -220,20 +231,19 @@ define [
 			affected_docs = {}
 			for update in @$scope.trackChanges.selection.updates
 				for doc_id, doc of update.docs
-					affected_docs[doc_id] = true
+					affected_docs[doc_id] = doc.entity
 
 			selected_doc = @$scope.trackChanges.selection.doc
-			if selected_doc? and affected_docs[selected_doc.id]
+			if selected_doc? and affected_docs[selected_doc.id]?
 				console.log "An affected doc is already open, bravo!"
-				selected_doc_id = selected_doc.id
 			else
 				console.log "selected doc is not open, selecting first one"
 				for doc_id, doc of affected_docs
-					selected_doc_id = doc_id
+					selected_doc = doc
 					break
 
-			doc = @$scope.trackChanges.selection.doc = @ide.fileTreeManager.findEntityById(selected_doc_id)
-			@ide.fileTreeManager.selectEntity(doc)
+			@$scope.trackChanges.selection.doc = selected_doc
+			@ide.fileTreeManager.selectEntity(selected_doc)
 
 		_updateContainsUserId: (update, user_id) ->
 			for user in update.meta.users

services/web/public/coffee/app/ide/track-changes/controllers/TrackChangesDiffController.coffee

@@ -0,0 +1,9 @@
+define [
+	"base"
+], (App) ->
+	App.controller "TrackChangesDiffController", ["$scope", "ide", ($scope, ide) ->
+		$scope.restoreDeletedDoc = () ->
+			ide.trackChangesManager.restoreDeletedDoc(
+				$scope.trackChanges.diff.doc
+			)
+	]

services/web/public/stylesheets/app/editor/file-tree.less

@@ -1,17 +1,27 @@
 
-#file-tree {
+aside#file-tree {
 	background-color: #fafafa;
 
-	ul.file-tree-list {
-		font-size: 0.8rem;
-		margin: 0;
-		padding: (@line-height-computed / 4) 0;
+	.file-tree-inner {
 		position: absolute;
 		top: 32px;
 		bottom: 0;
 		left: 0;
 		right: 0;
 		overflow-y: auto;
+	}
+
+	h3 {
+		font-size: 1rem;
+		border-bottom: 1px solid @gray;
+		padding-bottom: (@line-height-computed / 4);
+		margin: (@line-height-computed / 2);
+	}
+
+	ul.file-tree-list {
+		font-size: 0.8rem;
+		margin: 0;
+		padding: (@line-height-computed / 4) 0;
 
 		ul {
 			margin-left: (@line-height-computed / 2);

services/web/public/stylesheets/app/editor/track-changes.less

@@ -128,6 +128,9 @@
 				display: none;
 			}
 		}
+		.diff-deleted {
+			padding: @line-height-computed;
+		}
 	}
 
 	aside.change-list {

services/web/public/stylesheets/core/type.less

@@ -110,6 +110,13 @@ cite    { font-style: normal; }
   .text-emphasis-variant(@state-danger-text);
 }
 
+.text-serif {
+  font-family: @font-family-serif;
+}
+.text-centered {
+  text-align: center;
+}
+
 // Contextual backgrounds
 // For now we'll leave these alongside the text classes until v4 when we can
 // safely shift things around (per SemVer rules).