[gnome-documents/wip/pranavk/lokdocview: 1/7] Add new class, LOKView, for LOKDocView widget

[Pranav Kant <pranavk src gnome org>]

commit 5475ab596feda85c140121f5984824737151db28
Author: Pranav Kant <pranavk gnome org>
Date:   Tue Aug 11 21:11:11 2015 +0530

    Add new class, LOKView, for LOKDocView widget
    
    Use this widget, now, to open 'open document' format documents.

 src/documents.js                          |   27 +++++++-
 src/embed.js                              |   29 +++++---
 src/lokview.js                            |  110 +++++++++++++++++++++++++++++
 src/org.gnome.Documents.src.gresource.xml |    1 +
 4 files changed, 157 insertions(+), 10 deletions(-)
---
diff --git a/src/documents.js b/src/documents.js
index e5e34b7..52dba53 100644
--- a/src/documents.js
+++ b/src/documents.js
@@ -44,6 +44,23 @@ const Search = imports.search;
 const TrackerUtils = imports.trackerUtils;
 const Utils = imports.utils;
 
+const openDocumentFormats = ['application/vnd.oasis.opendocument.text',
+                             'application/vnd.oasis.opendocument.text-template',
+                             'application/vnd.oasis.opendocument.text-web',
+                             'application/vnd.oasis.opendocument.text-master',
+                             'application/vnd.oasis.opendocument.graphics',
+                             'application/vnd.oasis.opendocument.graphics-template',
+                             'application/vnd.oasis.opendocument.presentation',
+                             'application/vnd.oasis.opendocument.presentation-template',
+                             'application/vnd.oasis.opendocument.spreadsheet',
+                             'application/vnd.oasis.opendocument.spreadsheet-template',
+                             'application/vnd.oasis.opendocument.chart',
+                             'application/vnd.oasis.opendocument.formula',
+                             'application/vnd.oasis.opendocument.database',
+                             'application/vnd.oasis.opendocument.image',
+                             'application/vnd.openofficeorg.extension'];
+
+
 const DeleteItemJob = new Lang.Class({
     Name: 'DeleteItemJob',
 // deletes the given resource
@@ -727,6 +744,11 @@ const LocalDocument = new Lang.Class({
             return;
         }
 
+        if (openDocumentFormats.indexOf(this.mimeType) != -1) {
+            callback (this, null, null);
+            return;
+        }
+
         GdPrivate.pdf_loader_load_uri_async(this.uri, passwd, cancellable, Lang.bind(this,
             function(source, res) {
                 try {
@@ -1305,7 +1327,8 @@ const DocumentManager = new Lang.Class({
 
         // save loaded model and signal
         this._activeDocModel = docModel;
-        this._activeDocModel.set_continuous(false);
+        if (this._activeModel)
+            this._activeDocModel.set_continuous(false);
 
         // load metadata
         this._connectMetadata(docModel);
@@ -1421,6 +1444,8 @@ const DocumentManager = new Lang.Class({
     },
 
     _connectMetadata: function(docModel) {
+        if (!docModel)
+            return;
         let evDoc = docModel.get_document();
         let file = Gio.File.new_for_uri(evDoc.get_uri());
         if (!GdPrivate.is_metadata_supported_for_file(file))
diff --git a/src/embed.js b/src/embed.js
index b9d5e8e..8ca5521 100644
--- a/src/embed.js
+++ b/src/embed.js
@@ -33,6 +33,7 @@ const Selections = imports.selections;
 const View = imports.view;
 const WindowMode = imports.windowMode;
 const Documents = imports.documents;
+const LOKView = imports.lokview;
 
 const EvView = imports.gi.EvinceView;
 const Gd = imports.gi.Gd;
@@ -118,6 +119,9 @@ const Embed = new Lang.Class({
         this._preview = new Preview.PreviewView(this._stackOverlay);
         this._stack.add_named(this._preview, 'preview');
 
+        this._lokview = new LOKView.LOKView(this._stackOverlay);
+        this._stack.add_named(this._lokview, 'lokview');
+
         this._edit = new Edit.EditView();
         this._stack.add_named(this._edit, 'edit');
 
@@ -365,18 +369,23 @@ const Embed = new Lang.Class({
     },
 
     _onLoadFinished: function(manager, doc, docModel) {
-        if (!Application.application.isBooks)
-            docModel.set_sizing_mode(EvView.SizingMode.AUTOMATIC);
-        else
-            docModel.set_sizing_mode(EvView.SizingMode.FIT_PAGE);
-        docModel.set_page_layout(EvView.PageLayout.AUTOMATIC);
-        this._toolbar.setModel(docModel);
-        this._preview.setModel(docModel);
-        this._preview.grab_focus();
+        if (doc && docModel) {
+            if (!Application.application.isBooks)
+                docModel.set_sizing_mode(EvView.SizingMode.AUTOMATIC);
+            else
+                docModel.set_sizing_mode(EvView.SizingMode.FIT_PAGE);
+            docModel.set_page_layout(EvView.PageLayout.AUTOMATIC);
+            this._toolbar.setModel(docModel);
+            this._preview.setModel(docModel);
+            this._preview.grab_focus();
+        }
 
         this._clearLoadTimer();
         this._spinnerBox.stop();
-        this._stack.set_visible_child_name('preview');
+        if (doc != null && docModel == null)
+            this._stack.set_visible_child_name('lokview');
+        else
+            this._stack.set_visible_child_name('preview');
     },
 
     _onLoadError: function(manager, doc, message, exception) {
@@ -421,6 +430,8 @@ const Embed = new Lang.Class({
 
         if (this._preview)
             this._preview.reset();
+        if (this._lokview)
+            this._lokview.reset();
         if (this._edit)
             this._edit.setUri(null);
 
diff --git a/src/lokview.js b/src/lokview.js
new file mode 100644
index 0000000..ec798d0
--- /dev/null
+++ b/src/lokview.js
@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) 2015 Pranav Kant
+ *
+ * Gnome Documents is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * Gnome Documents is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with Gnome Documents; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Author: Pranav Kant <pranavk gnome org>
+ *
+ */
+
+const LOKDocView = imports.gi.LOKDocView;
+const WebKit = imports.gi.WebKit2;
+const Soup = imports.gi.Soup;
+const Gd = imports.gi.Gd;
+const GdPrivate = imports.gi.GdPrivate;
+const Gdk = imports.gi.Gdk;
+const Gio = imports.gi.Gio;
+const GLib = imports.gi.GLib;
+const Gtk = imports.gi.Gtk;
+const _ = imports.gettext.gettext;
+
+const Lang = imports.lang;
+const Mainloop = imports.mainloop;
+const Signals = imports.signals;
+
+const Application = imports.application;
+const MainToolbar = imports.mainToolbar;
+const Searchbar = imports.searchbar;
+const Utils = imports.utils;
+const View = imports.view;
+const WindowMode = imports.windowMode;
+const Documents = imports.documents;
+
+// FIXME: Find this path dynamically
+const LO_PATH = '/opt/libreoffice/instdir/program'
+
+const LOKView = new Lang.Class({
+    Name: 'LOKView',
+    Extends: Gtk.Overlay,
+
+    _init: function() {
+        this._uri = null;
+
+        this.parent();
+        this.get_style_context().add_class('documents-scrolledwin');
+
+        this._sw = new Gtk.ScrolledWindow({hexpand: true,
+                                           vexpand: true});
+
+        this._progressBar = new Gtk.ProgressBar({ halign: Gtk.Align.FILL,
+                                                  valign: Gtk.Align.START });
+        this._progressBar.get_style_context().add_class('osd');
+        this.add_overlay(this._progressBar);
+
+        this.add(this._sw);
+        this._createView();
+
+        this.show_all();
+
+        Application.documentManager.connect('load-started',
+                                            Lang.bind(this, this._onLoadStarted));
+        Application.documentManager.connect('load-finished',
+                                            Lang.bind(this, this._onLoadFinished));
+
+    },
+
+    _onLoadStarted: function() {
+
+    },
+
+    open_document_cb: function() {
+        // TODO: Call _finish and check failure
+        this._progressBar.hide();
+        this.view.show();
+    },
+
+    _onLoadFinished: function(manager, doc, docModel) {
+        if (docModel == null && doc != null) {
+            let location = doc.uri.replace ('file://', '');
+            this.view.open_document(location, null, Lang.bind(this, this.open_document_cb), null);
+            this._progressBar.show();
+        }
+    },
+
+    reset: function () {
+        this.view.hide()
+    },
+
+    _createView: function() {
+        this.view = LOKDocView.View.new(LO_PATH, null, null);
+        this._sw.add(this.view);
+        this.view.connect('load-changed', Lang.bind(this, this._onProgressChanged));
+    },
+
+    _onProgressChanged: function() {
+        this._progressBar.fraction = this.view.load_progress;
+    },
+});
+Signals.addSignalMethods(LOKView.prototype);
diff --git a/src/org.gnome.Documents.src.gresource.xml b/src/org.gnome.Documents.src.gresource.xml
index a2baba3..a3b26db 100644
--- a/src/org.gnome.Documents.src.gresource.xml
+++ b/src/org.gnome.Documents.src.gresource.xml
@@ -5,6 +5,7 @@
     <file>changeMonitor.js</file>
     <file>documents.js</file>
     <file>edit.js</file>
+    <file>lokview.js</file>
     <file>embed.js</file>
     <file>errorBox.js</file>
     <file>main.js</file>