[gnome-documents/wip/rishi/split-view: 3/15] Merge CollectionManager into DocumentManager



commit 3ddfac17de3c5301b78bbbdf7a879c38f5e25889
Author: Debarshi Ray <debarshir gnome org>
Date:   Wed Sep 24 17:10:48 2014 +0200

    Merge CollectionManager into DocumentManager
    
    https://bugzilla.gnome.org/show_bug.cgi?id=686461

 src/application.js         |    4 +-
 src/documents.js           |  111 ++++++++++++++++++++++++++++++++++++--------
 src/embed.js               |    7 +--
 src/mainToolbar.js         |    8 ++--
 src/mainWindow.js          |    2 +-
 src/query.js               |    2 +-
 src/search.js              |    3 +-
 src/searchbar.js           |    4 +-
 src/selections.js          |   14 +++---
 src/shellSearchProvider.js |    2 +-
 src/trackerController.js   |    2 +-
 11 files changed, 113 insertions(+), 46 deletions(-)
---
diff --git a/src/application.js b/src/application.js
index 0c86d93..d400a8d 100644
--- a/src/application.js
+++ b/src/application.js
@@ -73,7 +73,6 @@ let settings = null;
 
 // used by the application, but not by the search provider
 let changeMonitor = null;
-let collectionManager = null;
 let cssProvider = null;
 let documentManager = null;
 let modeController = null;
@@ -476,13 +475,12 @@ const Application = new Lang.Class({
         }
 
         connectionQueue = new TrackerController.TrackerConnectionQueue();
+        changeMonitor = new ChangeMonitor.TrackerChangeMonitor();
 
         // now init application components
         Search.initSearch(imports.application);
         Search.initSearch(imports.shellSearchProvider);
 
-        changeMonitor = new ChangeMonitor.TrackerChangeMonitor();
-        documentManager = new Documents.DocumentManager();
         modeController = new WindowMode.ModeController();
         trackerController = new TrackerController.TrackerController();
         selectionController = new Selections.SelectionController();
diff --git a/src/documents.js b/src/documents.js
index c562d14..4d39b79 100644
--- a/src/documents.js
+++ b/src/documents.js
@@ -1097,6 +1097,9 @@ const DocumentManager = new Lang.Class({
         this._activeDocModelIds = [];
         this._loaderCancellable = null;
 
+        this._activeCollection = null;
+        this._collections = {};
+
         // a stack containing the collections which were used to
         // navigate to the active document or collection
         this._collectionPath = [];
@@ -1122,9 +1125,6 @@ const DocumentManager = new Lang.Class({
                 if (doc) {
                     doc.destroy();
                     this.removeItemById(changeEvent.urn);
-
-                    if (doc.collection)
-                        Application.collectionManager.removeItemById(changeEvent.urn);
                 }
             }
         }
@@ -1181,14 +1181,27 @@ const DocumentManager = new Lang.Class({
         } else {
             doc = this.createDocumentFromCursor(cursor);
             this.addItem(doc);
-            if (doc.collection)
-                Application.collectionManager.addItem(doc);
         }
 
         return doc;
     },
 
+    addItem: function(doc) {
+        if (doc.collection) {
+            let oldCollection = this._collections[doc.id];
+            if (oldCollection)
+                this.removeItem(oldCollection);
+
+            this._collections[doc.id] = doc;
+        }
+
+        this.parent(doc);
+    },
+
     clear: function() {
+        this._collections = {};
+        this._activeCollection = null;
+
         let items = this.getItems();
         for (let idx in items) {
             items[idx].destroy();
@@ -1197,6 +1210,23 @@ const DocumentManager = new Lang.Class({
         this.parent();
     },
 
+    getActiveCollection: function() {
+        return this._activeCollection;
+    },
+
+    getCollections: function() {
+        return this._collections;
+    },
+
+    getWhere: function() {
+        let retval = '';
+
+        if (this._activeCollection)
+            retval = this._activeCollection.getWhere();
+
+        return retval;
+    },
+
     _humanizeError: function(error) {
         let message = error.message;
         if (error.domain == GData.ServiceError) {
@@ -1272,33 +1302,74 @@ const DocumentManager = new Lang.Class({
         this.emit('load-started', doc);
     },
 
+    removeItemById: function(id) {
+        if (this._collections[id]) {
+            delete this._collections[id];
+        }
+
+        this.parent(id);
+    },
+
     setActiveItem: function(doc) {
-        if (!this.parent(doc))
-            return;
+        let activeCollectionChanged = false;
+        let activeDoc = this.getActiveItem();
+        let retval = false;
+        let startLoading = false;
+
+        // Passing null is a way to go back to the current collection or
+        // overview from the preview. However, you can't do that when you
+        // are looking at a collection. Use activatePreviousCollection for
+        // unwinding the collection stack.
+        if (!doc) {
+            if (activeDoc != this._activeCollection)
+                doc = this._activeCollection;
+            else
+                return false;
+        }
 
         // cleanup any state we have for previously loaded model
         this._clearActiveDocModel();
 
-        if (!doc)
-            return;
-
-        if (doc.collection) {
-            this._collectionPath.push(Application.collectionManager.getActiveItem());
-            Application.collectionManager.setActiveItem(doc);
-            return;
+        // If doc is null then we are going back to the overview from
+        // the preview.
+        if (doc) {
+            if (doc.collection) {
+                // If doc is the active collection then we are going back to the
+                // collection from the preview.
+                if (doc != this._activeCollection) {
+                    this._collectionPath.push(this._activeCollection);
+                    this._activeCollection = doc;
+                    activeCollectionChanged = true;
+                }
+            } else {
+                startLoading = true;
+            }
         }
 
-        let recentManager = Gtk.RecentManager.get_default();
-        recentManager.add_item(doc.uri);
+        retval = this.parent(doc);
 
-        this._loaderCancellable = new Gio.Cancellable();
-        doc.load(null, this._loaderCancellable, Lang.bind(this, this._onDocumentLoaded));
-        this.emit('load-started', doc);
+        if (retval && activeCollectionChanged)
+            this.emit('active-collection-changed', this._activeCollection);
+
+        if (retval && startLoading) {
+            let recentManager = Gtk.RecentManager.get_default();
+            recentManager.add_item(doc.uri);
+
+            this._loaderCancellable = new Gio.Cancellable();
+            doc.load(null, this._loaderCancellable, Lang.bind(this, this._onDocumentLoaded));
+            this.emit('load-started', doc);
+        }
+
+        return retval;
     },
 
     activatePreviousCollection: function() {
         this._clearActiveDocModel();
-        Application.collectionManager.setActiveItem(this._collectionPath.pop());
+
+        let collection = this._collectionPath.pop();
+        this._activeCollection = collection;
+        Manager.BaseManager.prototype.setActiveItem.call(this, collection);
+        this.emit('active-collection-changed', this._activeCollection);
     },
 
     _clearActiveDocModel: function() {
diff --git a/src/embed.js b/src/embed.js
index b14b64c..0b6546e 100644
--- a/src/embed.js
+++ b/src/embed.js
@@ -374,11 +374,8 @@ const Embed = new Lang.Class({
     },
 
     _onActiveItemChanged: function(manager, doc) {
-        if (doc) {
-            let collection = Application.collectionManager.getItemById(doc.id);
-            if (!collection)
-                return;
-        }
+        if (doc && !doc.collection)
+            return;
 
         Application.modeController.setWindowMode(WindowMode.WindowMode.OVERVIEW);
     },
diff --git a/src/mainToolbar.js b/src/mainToolbar.js
index 90ea778..836913b 100644
--- a/src/mainToolbar.js
+++ b/src/mainToolbar.js
@@ -154,7 +154,7 @@ const OverviewToolbar = new Lang.Class({
 
     _setToolbarTitle: function() {
         let selectionMode = Application.selectionController.getSelectionMode();
-        let activeCollection = Application.collectionManager.getActiveItem();
+        let activeCollection = Application.documentManager.getActiveCollection();
         let primary = null;
 
         if (!selectionMode) {
@@ -213,7 +213,7 @@ const OverviewToolbar = new Lang.Class({
     },
 
     _checkCollectionBackButton: function() {
-        let item = Application.collectionManager.getActiveItem();
+        let item = Application.documentManager.getActiveCollection();
 
         if (item && !this._collBackButton) {
             this._collBackButton = this.addBackButton();
@@ -251,7 +251,7 @@ const OverviewToolbar = new Lang.Class({
 
         // connect to active collection changes while in this mode
         this._collectionId =
-            Application.collectionManager.connect('active-changed',
+            Application.documentManager.connect('active-collection-changed',
                                              Lang.bind(this, this._onActiveCollectionChanged));
     },
 
@@ -263,7 +263,7 @@ const OverviewToolbar = new Lang.Class({
         this.toolbar.set_custom_title(null);
 
         if (this._collectionId != 0) {
-            Application.collectionManager.disconnect(this._collectionId);
+            Application.documentManager.disconnect(this._collectionId);
             this._collectionId = 0;
         }
 
diff --git a/src/mainWindow.js b/src/mainWindow.js
index 244d3e2..2a3798c 100644
--- a/src/mainWindow.js
+++ b/src/mainWindow.js
@@ -149,7 +149,7 @@ const MainWindow = new Lang.Class({
 
     _goBack: function() {
         let windowMode = Application.modeController.getWindowMode();
-        let activeCollection = Application.collectionManager.getActiveItem();
+        let activeCollection = Application.documentManager.getActiveCollection();
         let handled = true;
 
         if (windowMode == WindowMode.WindowMode.PREVIEW ||
diff --git a/src/query.js b/src/query.js
index 0566fce..467a556 100644
--- a/src/query.js
+++ b/src/query.js
@@ -100,7 +100,7 @@ const QueryBuilder = new Lang.Class({
                 if ((flags & QueryFlags.UNFILTERED) == 0) {
                     if (global)
                         part += this._context.searchCategoryManager.getWhere() +
-                                this._context.collectionManager.getWhere();
+                                this._context.documentManager.getWhere();
 
                     part += this._buildFilterString(currentType);
                 }
diff --git a/src/search.js b/src/search.js
index 8e8751c..256d061 100644
--- a/src/search.js
+++ b/src/search.js
@@ -20,6 +20,7 @@
  */
 
 const Application = imports.application;
+const Documents = imports.documents;
 const Manager = imports.manager;
 const Query = imports.query;
 
@@ -34,7 +35,7 @@ const _ = imports.gettext.gettext;
 const C_ = imports.gettext.pgettext;
 
 function initSearch(context) {
-    context.collectionManager = new Manager.BaseManager(context);
+    context.documentManager = new Documents.DocumentManager();
     context.sourceManager = new SourceManager(context);
     context.searchCategoryManager = new SearchCategoryManager(context);
     context.searchMatchManager = new SearchMatchManager(context);
diff --git a/src/searchbar.js b/src/searchbar.js
index 24e3f59..9644071 100644
--- a/src/searchbar.js
+++ b/src/searchbar.js
@@ -166,7 +166,7 @@ const OverviewSearchbar = new Lang.Class({
             Lang.bind(this, this._onActiveTypeChanged));
         this._searchMatchId = Application.searchMatchManager.connect('active-changed',
             Lang.bind(this, this._onActiveMatchChanged));
-        this._collectionId = Application.collectionManager.connect('active-changed',
+        this._collectionId = Application.documentManager.connect('active-collection-changed',
             Lang.bind(this, this._onActiveCollectionChanged));
 
         this._onActiveSourceChanged();
@@ -312,7 +312,7 @@ const OverviewSearchbar = new Lang.Class({
         }
 
         if (this._collectionId != 0) {
-            Application.collectionManager.disconnect(this._collectionId);
+            Application.documentManager.disconnect(this._collectionId);
             this._collectionId = 0;
         }
 
diff --git a/src/selections.js b/src/selections.js
index cd2485c..3b06802 100644
--- a/src/selections.js
+++ b/src/selections.js
@@ -138,7 +138,7 @@ const FetchCollectionStateForSelectionJob = new Lang.Class({
 
     _emitCallback: function() {
         let collectionState = {};
-        let collections = Application.collectionManager.getItems();
+        let collections = Application.documentManager.getCollections();
 
         // for all the registered collections...
         for (let collIdx in collections) {
@@ -325,9 +325,9 @@ const OrganizeCollectionModel = new Lang.Class({
               GObject.TYPE_STRING,
               GObject.TYPE_INT ]);
 
-        this._collAddedId = Application.collectionManager.connect('item-added',
+        this._collAddedId = Application.documentManager.connect('item-added',
             Lang.bind(this, this._onCollectionAdded));
-        this._collRemovedId = Application.collectionManager.connect('item-removed',
+        this._collRemovedId = Application.documentManager.connect('item-removed',
             Lang.bind(this, this._onCollectionRemoved));
 
         let iter;
@@ -372,7 +372,7 @@ const OrganizeCollectionModel = new Lang.Class({
 
     _onFetchCollectionStateForSelection: function(collectionState) {
         for (let idx in collectionState) {
-            let item = Application.collectionManager.getItemById(idx);
+            let item = Application.documentManager.getItemById(idx);
 
             if ((collectionState[item.id] & OrganizeCollectionState.HIDDEN) != 0)
                 continue;
@@ -410,12 +410,12 @@ const OrganizeCollectionModel = new Lang.Class({
 
     destroy: function() {
         if (this._collAddedId != 0) {
-            Application.collectionManager.disconnect(this._collAddedId);
+            Application.documentManager.disconnect(this._collAddedId);
             this._collAddedId = 0;
         }
 
         if (this._collRemovedId != 0) {
-            Application.collectionManager.disconnect(this._collRemovedId);
+            Application.documentManager.disconnect(this._collRemovedId);
             this._collRemovedId = 0;
         }
     }
@@ -610,7 +610,7 @@ const OrganizeCollectionView = new Lang.Class({
 
     _detailCellFunc: function(col, cell, model, iter) {
         let id = model.get_value(iter, OrganizeModelColumns.ID);
-        let item = Application.collectionManager.getItemById(id);
+        let item = Application.documentManager.getItemById(id);
 
         if (item && item.identifier.indexOf(Query.LOCAL_COLLECTIONS_IDENTIFIER) == -1) {
             cell.text = Application.sourceManager.getItemById(item.resourceUrn).name;
diff --git a/src/shellSearchProvider.js b/src/shellSearchProvider.js
index 8bdf211..2711714 100644
--- a/src/shellSearchProvider.js
+++ b/src/shellSearchProvider.js
@@ -38,7 +38,7 @@ const Search = imports.search;
 const TrackerUtils = imports.trackerUtils;
 const Utils = imports.utils;
 
-let collectionManager = null;
+let documentManager = null;
 let offsetController = null;
 let queryBuilder = null;
 let searchCategoryManager = null;
diff --git a/src/trackerController.js b/src/trackerController.js
index e2107b9..d21553e 100644
--- a/src/trackerController.js
+++ b/src/trackerController.js
@@ -135,7 +135,7 @@ const TrackerController = new Lang.Class({
 
         Application.offsetController.connect('offset-changed', Lang.bind(this, this._performCurrentQuery));
 
-        Application.collectionManager.connect('active-changed', Lang.bind(this, this._refreshForObject));
+        Application.documentManager.connect('active-collection-changed', Lang.bind(this, 
this._refreshForObject));
         Application.searchController.connect('search-string-changed', Lang.bind(this, 
this._refreshForObject));
         Application.searchCategoryManager.connect('active-changed', Lang.bind(this, this._refreshForObject));
         Application.searchTypeManager.connect('active-changed', Lang.bind(this, this._refreshForObject));


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