[gnome-documents/wip/gepub] preview: use a common method to create the preview context menu

[Cosimo Cecchi <cosimoc src gnome org>]

commit c2996dce2995893da08bb28809a046fdece7eba3
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Tue Jun 21 21:31:04 2016 -0700

    preview: use a common method to create the preview context menu
    
    It's always the same anyway.

 src/epubview.js   |    4 ++++
 src/evinceview.js |   13 +------------
 src/lokview.js    |   13 +------------
 src/preview.js    |   11 +++++++++++
 4 files changed, 17 insertions(+), 24 deletions(-)
---
diff --git a/src/epubview.js b/src/epubview.js
index 94315bd..1ee2577 100644
--- a/src/epubview.js
+++ b/src/epubview.js
@@ -63,6 +63,10 @@ const EPUBView = new Lang.Class({
         return new Gepub.Widget();
     },
 
+    createContextMenu: function() {
+        return null;
+    },
+
     onLoadFinished: function(manager, doc) {
         this.parent(manager, doc);
 
diff --git a/src/evinceview.js b/src/evinceview.js
index 8e9d4d5..d382f9a 100644
--- a/src/evinceview.js
+++ b/src/evinceview.js
@@ -63,11 +63,6 @@ const EvinceView = new Lang.Class({
         Application.modeController.connect('window-mode-changed', Lang.bind(this,
             this._onWindowModeChanged));
 
-        // create context menu
-        let model = this._getEvinceViewContextMenu();
-        this._previewContextMenu = Gtk.Menu.new_from_model(model);
-        this._previewContextMenu.attach_to_widget(this.view, null);
-
         this.getAction('bookmark-page').enabled = false;
 
         let nightModeId = Application.application.connect('action-state-changed::night-mode',
@@ -399,12 +394,6 @@ const EvinceView = new Lang.Class({
         this.getAction('zoom-out').enabled = this._evView.can_zoom_out;
     },
 
-    _getEvinceViewContextMenu: function() {
-        let builder = new Gtk.Builder();
-        builder.add_from_resource('/org/gnome/Documents/ui/preview-context-menu.ui');
-        return builder.get_object('preview-context-menu');
-    },
-
     _syncControlsVisible: function() {
         if (this._controlsVisible) {
             if (this._fsToolbar)
@@ -474,7 +463,7 @@ const EvinceView = new Lang.Class({
 
         if (button == 3) {
             let time = event.get_time();
-            this._previewContextMenu.popup(null, null, null, button, time);
+            this.contextMenu.popup(null, null, null, button, time);
             return true;
         }
 
diff --git a/src/lokview.js b/src/lokview.js
index 7dbb3a3..8b4c690 100644
--- a/src/lokview.js
+++ b/src/lokview.js
@@ -107,11 +107,6 @@ const LOKView = new Lang.Class({
                                                   valign: Gtk.Align.START });
         this._progressBar.get_style_context().add_class('osd');
         this.overlay.add_overlay(this._progressBar);
-
-        // create context menu
-        let model = this._getPreviewContextMenu();
-        this._previewContextMenu = Gtk.Menu.new_from_model(model);
-        this._previewContextMenu.attach_to_widget(this.view, null);
     },
 
     createActions: function() {
@@ -199,18 +194,12 @@ const LOKView = new Lang.Class({
         this.getAction('zoom-out').enabled = this._lokview.can_zoom_out;
     },
 
-    _getPreviewContextMenu: function() {
-        let builder = new Gtk.Builder();
-        builder.add_from_resource('/org/gnome/Documents/ui/preview-context-menu.ui');
-        return builder.get_object('preview-context-menu');
-    },
-
     _onButtonPressEvent: function(widget, event) {
         let button = event.get_button()[1];
 
         if (button == 3) {
             let time = event.get_time();
-            this._previewContextMenu.popup(null, null, null, button, time);
+            this.contextMenu.popup(null, null, null, button, time);
             return true;
         }
 
diff --git a/src/preview.js b/src/preview.js
index 365e719..1284c3c 100644
--- a/src/preview.js
+++ b/src/preview.js
@@ -39,6 +39,10 @@ const Preview = new Lang.Class({
         this.view.show();
         this.set_visible_child_full('view', Gtk.StackTransitionType.NONE);
 
+        this.contextMenu = this.createContextMenu();
+        if (this.contextMenu)
+            this.contextMenu.attach_to_widget(this.view, null);
+
         this.navControls = this.createNavControls();
         this.navControls.show();
         this.show_all();
@@ -118,6 +122,13 @@ const Preview = new Lang.Class({
         throw(new Error('Not implemented'));
     },
 
+    createContextMenu: function() {
+        let builder = new Gtk.Builder();
+        builder.add_from_resource('/org/gnome/Documents/ui/preview-context-menu.ui');
+        let model = builder.get_object('preview-context-menu');
+        return Gtk.Menu.new_from_model(model);
+    },
+
     onLoadStarted: function(manager, doc) {
     },