[evince] ev-recent-view: Added bookshelf view for recent documents



commit 39ad5dbbbc0efb969ea4ad69b74dbf2801cd9985
Author: Aakash Goenka <aakash goenka gmail com>
Date:   Sun Feb 23 14:53:19 2014 -0800

    ev-recent-view: Added bookshelf view for recent documents
    
    * Files are added to the bookshelf only if they exists
    * Use gtk_recent_info_get_modified instead of
      gtk_recent_info_get_visited for ordering the recent items.

 shell/Makefile.am          |    2 +
 shell/ev-recent-view.c     |  470 ++++++++++++++++++++++++++++++++++++++++++++
 shell/ev-recent-view.h     |   56 ++++++
 shell/evince.gresource.xml |    1 +
 shell/thumbnail-frame.png  |  Bin 0 -> 832 bytes
 5 files changed, 529 insertions(+), 0 deletions(-)
---
diff --git a/shell/Makefile.am b/shell/Makefile.am
index 3d3d3e7..2a3e3b3 100644
--- a/shell/Makefile.am
+++ b/shell/Makefile.am
@@ -47,6 +47,8 @@ evince_SOURCES=                               \
        ev-properties-license.h         \
        ev-open-recent-action.c         \
        ev-open-recent-action.h         \
+       ev-recent-view.c                \
+       ev-recent-view.h                \
        ev-toolbar.c                    \
        ev-toolbar.h                    \
        ev-utils.c                      \
diff --git a/shell/ev-recent-view.c b/shell/ev-recent-view.c
new file mode 100644
index 0000000..7219380
--- /dev/null
+++ b/shell/ev-recent-view.c
@@ -0,0 +1,470 @@
+/* this file is part of evince, a gnome document viewer
+ *
+ *  Copyright (C) 2013 Aakash Goenka
+ *  Copyright (C) 2014 Carlos Garcia Campos
+ *
+ * Evince 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.
+ *
+ * Evince 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include <glib/gi18n.h>
+#include <gtk/gtk.h>
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <cairo-gobject.h>
+
+#include "ev-recent-view.h"
+#include "ev-file-helpers.h"
+#include "gd-icon-utils.h"
+#include "gd-main-view-generic.h"
+#include "gd-main-icon-view.h"
+#include "ev-document-misc.h"
+#include "ev-document-model.h"
+#include "ev-jobs.h"
+#include "ev-job-scheduler.h"
+
+typedef enum {
+        EV_RECENT_VIEW_JOB_COLUMN = GD_MAIN_COLUMN_LAST,
+        NUM_COLUMNS
+} EvRecentViewColumns;
+
+struct _EvRecentViewPrivate {
+        GtkWidget        *view;
+        GtkListStore     *model;
+        GtkRecentManager *recent_manager;
+        GtkTreePath      *pressed_item_tree_path;
+        guint             recent_manager_changed_handler_id;
+};
+
+enum {
+        ITEM_ACTIVATED,
+        NUM_SIGNALS
+};
+
+static guint signals[NUM_SIGNALS] = { 0, };
+
+G_DEFINE_TYPE (EvRecentView, ev_recent_view, GTK_TYPE_SCROLLED_WINDOW)
+
+#define ICON_VIEW_SIZE 128
+#define MAX_RECENT_VIEW_ITEMS 20
+
+static gboolean
+ev_recent_view_clear_job (GtkTreeModel *model,
+                          GtkTreePath  *path,
+                          GtkTreeIter  *iter,
+                          EvRecentView *ev_recent_view)
+{
+        EvJob *job;
+
+        gtk_tree_model_get (model, iter, EV_RECENT_VIEW_JOB_COLUMN, &job, -1);
+
+        if (job != NULL) {
+                ev_job_cancel (job);
+                g_signal_handlers_disconnect_by_data (job, ev_recent_view);
+                g_object_unref (job);
+        }
+
+        return FALSE;
+}
+
+static void
+ev_recent_view_clear_model (EvRecentView *ev_recent_view)
+{
+        EvRecentViewPrivate *priv = ev_recent_view->priv;
+
+        gtk_tree_model_foreach (GTK_TREE_MODEL (priv->model),
+                                (GtkTreeModelForeachFunc)ev_recent_view_clear_job,
+                                ev_recent_view);
+        gtk_list_store_clear (priv->model);
+}
+
+static void
+ev_recent_view_dispose (GObject *obj)
+{
+        EvRecentView        *ev_recent_view = EV_RECENT_VIEW (obj);
+        EvRecentViewPrivate *priv = ev_recent_view->priv;
+
+        if (priv->model) {
+                ev_recent_view_clear_model (ev_recent_view);
+                g_object_unref (priv->model);
+                priv->model = NULL;
+        }
+
+        if (priv->recent_manager_changed_handler_id) {
+                g_signal_handler_disconnect (priv->recent_manager,
+                                             priv->recent_manager_changed_handler_id);
+                priv->recent_manager_changed_handler_id = 0;
+        }
+        priv->recent_manager = NULL;
+
+        G_OBJECT_CLASS (ev_recent_view_parent_class)->dispose (obj);
+}
+
+static gint
+compare_recent_items (GtkRecentInfo *a,
+                      GtkRecentInfo *b)
+{
+        gboolean     has_ev_a, has_ev_b;
+        const gchar *evince = g_get_application_name ();
+
+        has_ev_a = gtk_recent_info_has_application (a, evince);
+        has_ev_b = gtk_recent_info_has_application (b, evince);
+
+        if (has_ev_a && has_ev_b) {
+                time_t time_a, time_b;
+
+                time_a = gtk_recent_info_get_modified (a);
+                time_b = gtk_recent_info_get_modified (b);
+
+                return (time_b - time_a);
+        } else if (has_ev_a) {
+                return -1;
+        } else if (has_ev_b) {
+                return 1;
+        }
+
+        return 0;
+}
+
+static gboolean
+on_button_release_event (GtkWidget      *view,
+                         GdkEventButton *event,
+                         EvRecentView   *ev_recent_view)
+{
+        EvRecentViewPrivate *priv = ev_recent_view->priv;
+        GdMainViewGeneric   *generic = GD_MAIN_VIEW_GENERIC (priv->view);
+        GtkTreePath         *path;
+
+        /* eat double/triple click events */
+        if (event->type != GDK_BUTTON_RELEASE)
+                return TRUE;
+
+        if (priv->pressed_item_tree_path == NULL)
+                return FALSE;
+
+        path = gd_main_view_generic_get_path_at_pos (generic, event->x, event->y);
+        if (path == NULL)
+                return FALSE;
+
+        if (gtk_tree_path_compare (path, priv->pressed_item_tree_path) == 0) {
+                GtkTreeIter iter;
+                gchar      *uri;
+
+                g_clear_pointer (&priv->pressed_item_tree_path, gtk_tree_path_free);
+
+                if (!gtk_tree_model_get_iter (GTK_TREE_MODEL (priv->model), &iter, path)) {
+                        gtk_tree_path_free (path);
+
+                        return TRUE;
+                }
+                gtk_tree_path_free (path);
+
+                gtk_tree_model_get (GTK_TREE_MODEL (priv->model), &iter,
+                                    GD_MAIN_COLUMN_URI, &uri,
+                                    -1);
+                gtk_list_store_set (priv->model,
+                                    &iter,
+                                    GD_MAIN_COLUMN_SELECTED, TRUE,
+                                    -1);
+                g_signal_emit (ev_recent_view, signals[ITEM_ACTIVATED], 0, uri);
+                g_free (uri);
+
+                return TRUE;
+        }
+
+        g_clear_pointer (&priv->pressed_item_tree_path, gtk_tree_path_free);
+        gtk_tree_path_free (path);
+
+        return FALSE;
+}
+
+static gboolean
+on_button_press_event (GtkWidget      *view,
+                       GdkEventButton *event,
+                       EvRecentView   *ev_recent_view)
+{
+        EvRecentViewPrivate *priv = ev_recent_view->priv;
+        GdMainViewGeneric   *generic = GD_MAIN_VIEW_GENERIC (priv->view);
+
+        g_clear_pointer (&priv->pressed_item_tree_path, gtk_tree_path_free);
+        priv->pressed_item_tree_path = gd_main_view_generic_get_path_at_pos (generic, event->x, event->y);
+
+        return FALSE;
+}
+
+static void
+thumbnail_job_completed_callback (EvJobThumbnail *job,
+                                  EvRecentView   *ev_recent_view)
+{
+        EvRecentViewPrivate *priv = ev_recent_view->priv;
+        GtkTreeRowReference *row;
+        GtkTreePath         *path;
+        GtkTreeIter          iter;
+        cairo_surface_t     *surface;
+        GtkBorder            border;
+
+        border.left = 4;
+        border.right = 3;
+        border.top = 3;
+        border.bottom = 6;
+
+        surface = gd_embed_image_in_frame (job->thumbnail_surface,
+                                           "resource:///org/gnome/evince/shell/ui/thumbnail-frame.png",
+                                           &border, &border);
+
+        row = (GtkTreeRowReference *) g_object_get_data (G_OBJECT (job), "row-reference");
+        path = gtk_tree_row_reference_get_path (row);
+        gtk_tree_model_get_iter (GTK_TREE_MODEL (priv->model), &iter, path);
+        gtk_tree_path_free (path);
+
+        gtk_list_store_set (priv->model, &iter,
+                            GD_MAIN_COLUMN_ICON, surface,
+                            EV_RECENT_VIEW_JOB_COLUMN, NULL,
+                            -1);
+        cairo_surface_destroy (surface);
+}
+
+static void
+document_load_job_completed_callback (EvJobLoad    *job_load,
+                                      EvRecentView *ev_recent_view)
+{
+        EvRecentViewPrivate *priv = ev_recent_view->priv;
+        GtkTreeRowReference *row;
+        GtkTreePath         *path;
+        GtkTreeIter          iter;
+        EvDocument          *document;
+
+        document = EV_JOB (job_load)->document;
+        row = (GtkTreeRowReference *) g_object_get_data (G_OBJECT (job_load), "row-reference");
+        path = gtk_tree_row_reference_get_path (row);
+        gtk_tree_model_get_iter (GTK_TREE_MODEL (priv->model), &iter, path);
+        gtk_tree_path_free (path);
+
+        if (document) {
+                EvJob                *job_thumbnail;
+                gdouble               height;
+                gdouble               width;
+                gint                  target_width;
+                gint                  target_height;
+                const EvDocumentInfo *info;
+
+                ev_document_get_page_size (document, 0, &width, &height);
+                if (height < width) {
+                        target_width = ICON_VIEW_SIZE;
+                        target_height = (int)(ICON_VIEW_SIZE * height / width + 0.5);
+                } else {
+                        target_width = (int)(ICON_VIEW_SIZE * width / height + 0.5);
+                        target_height = ICON_VIEW_SIZE;
+                }
+
+                job_thumbnail = ev_job_thumbnail_new_with_target_size (document, 0, 0, target_width, 
target_height);
+
+                ev_job_thumbnail_set_has_frame (EV_JOB_THUMBNAIL (job_thumbnail), FALSE);
+                ev_job_thumbnail_set_output_format (EV_JOB_THUMBNAIL (job_thumbnail), 
EV_JOB_THUMBNAIL_SURFACE);
+
+                g_object_set_data_full (G_OBJECT (job_thumbnail), "row-reference",
+                                        gtk_tree_row_reference_copy (row),
+                                        (GDestroyNotify)gtk_tree_row_reference_free);
+
+                g_signal_connect (job_thumbnail, "finished",
+                                  G_CALLBACK (thumbnail_job_completed_callback),
+                                  ev_recent_view);
+
+                info = ev_document_get_info (document);
+                if (info->fields_mask & EV_DOCUMENT_INFO_TITLE && info->title && info->title[0] != '\0')
+                        gtk_list_store_set (priv->model, &iter,
+                                            GD_MAIN_COLUMN_PRIMARY_TEXT, info->title,
+                                            -1);
+                if (info->fields_mask & EV_DOCUMENT_INFO_AUTHOR && info->author && info->author[0] != '\0')
+                        gtk_list_store_set (priv->model, &iter,
+                                            GD_MAIN_COLUMN_SECONDARY_TEXT, info->author,
+                                            -1);
+
+                gtk_list_store_set (priv->model, &iter,
+                                    EV_RECENT_VIEW_JOB_COLUMN, job_thumbnail,
+                                    -1);
+
+                ev_job_scheduler_push_job (EV_JOB (job_thumbnail), EV_JOB_PRIORITY_HIGH);
+                g_object_unref (job_thumbnail);
+        } else {
+                gtk_list_store_set (priv->model, &iter,
+                                    EV_RECENT_VIEW_JOB_COLUMN, NULL,
+                                    -1);
+        }
+}
+
+static void
+ev_recent_view_refresh (EvRecentView *ev_recent_view)
+{
+        GList               *items, *l;
+        guint                n_items = 0;
+        const gchar         *evince = g_get_application_name ();
+        EvRecentViewPrivate *priv = ev_recent_view->priv;
+        GdMainViewGeneric   *generic = GD_MAIN_VIEW_GENERIC (priv->view);
+
+        items = gtk_recent_manager_get_items (priv->recent_manager);
+        items = g_list_sort (items, (GCompareFunc) compare_recent_items);
+
+        gtk_list_store_clear (priv->model);
+
+        for (l = items; l && l->data; l = g_list_next (l)) {
+                EvJob           *job_load;
+                GtkRecentInfo   *info;
+                const gchar     *uri;
+                GdkPixbuf       *pixbuf;
+                cairo_surface_t *thumbnail = NULL;
+                GtkTreeIter      iter;
+
+                info = (GtkRecentInfo *) l->data;
+
+                if (!gtk_recent_info_has_application (info, evince))
+                        continue;
+
+                if (gtk_recent_info_is_local (info) && !gtk_recent_info_exists (info))
+                        continue;
+
+                uri = gtk_recent_info_get_uri (info);
+                pixbuf = gtk_recent_info_get_icon (info, ICON_VIEW_SIZE);
+                if (pixbuf) {
+                        thumbnail = ev_document_misc_surface_from_pixbuf (pixbuf);
+                        g_object_unref (pixbuf);
+                }
+                job_load = ev_job_load_new (uri);
+                g_signal_connect (job_load, "finished",
+                                  G_CALLBACK (document_load_job_completed_callback),
+                                  ev_recent_view);
+
+                gtk_list_store_append (priv->model, &iter);
+
+                gtk_list_store_set (priv->model, &iter,
+                                    GD_MAIN_COLUMN_URI, uri,
+                                    GD_MAIN_COLUMN_PRIMARY_TEXT, gtk_recent_info_get_display_name (info),
+                                    GD_MAIN_COLUMN_SECONDARY_TEXT, NULL,
+                                    GD_MAIN_COLUMN_ICON, thumbnail,
+                                    GD_MAIN_COLUMN_MTIME, gtk_recent_info_get_modified (info),
+                                    GD_MAIN_COLUMN_SELECTED, FALSE,
+                                    EV_RECENT_VIEW_JOB_COLUMN, job_load,
+                                    -1);
+
+                if (job_load) {
+                        GtkTreePath         *path;
+                        GtkTreeRowReference *row;
+
+                        path = gtk_tree_model_get_path (GTK_TREE_MODEL (priv->model), &iter);
+                        row = gtk_tree_row_reference_new (GTK_TREE_MODEL (priv->model), path);
+                        gtk_tree_path_free (path);
+
+                        g_object_set_data_full (G_OBJECT (job_load), "row-reference", row,
+                                                (GDestroyNotify)gtk_tree_row_reference_free);
+
+                        ev_job_scheduler_push_job (EV_JOB (job_load), EV_JOB_PRIORITY_HIGH);
+                        g_object_unref (job_load);
+                }
+
+                if (thumbnail != NULL)
+                        cairo_surface_destroy (thumbnail);
+
+                if (++n_items == MAX_RECENT_VIEW_ITEMS)
+                        break;
+        }
+
+        g_list_free_full (items, (GDestroyNotify)gtk_recent_info_unref);
+
+        gd_main_view_generic_set_model (generic, GTK_TREE_MODEL (priv->model));
+}
+
+static void
+ev_recent_view_constructed (GObject *object)
+{
+        EvRecentView        *ev_recent_view = EV_RECENT_VIEW (object);
+        EvRecentViewPrivate *priv = ev_recent_view->priv;
+
+        G_OBJECT_CLASS (ev_recent_view_parent_class)->constructed (object);
+
+        priv->view = gd_main_icon_view_new ();
+        g_signal_connect (priv->view, "button-press-event",
+                          G_CALLBACK (on_button_press_event),
+                          ev_recent_view);
+        g_signal_connect (priv->view, "button-release-event",
+                          G_CALLBACK (on_button_release_event),
+                          ev_recent_view);
+
+        gtk_style_context_add_class (gtk_widget_get_style_context (priv->view), "content-view");
+        gtk_container_add (GTK_CONTAINER (ev_recent_view), priv->view);
+        gtk_widget_show (priv->view);
+
+        ev_recent_view_refresh (ev_recent_view);
+}
+
+static void
+ev_recent_view_init (EvRecentView *ev_recent_view)
+{
+        EvRecentViewPrivate *priv;
+
+        ev_recent_view->priv = G_TYPE_INSTANCE_GET_PRIVATE (ev_recent_view, EV_TYPE_RECENT_VIEW, 
EvRecentViewPrivate);
+
+        priv = ev_recent_view->priv;
+        priv->recent_manager = gtk_recent_manager_get_default ();
+        priv->model = gtk_list_store_new (NUM_COLUMNS,
+                                          G_TYPE_STRING,
+                                          G_TYPE_STRING,
+                                          G_TYPE_STRING,
+                                          G_TYPE_STRING,
+                                          CAIRO_GOBJECT_TYPE_SURFACE,
+                                          G_TYPE_LONG,
+                                          G_TYPE_BOOLEAN,
+                                          EV_TYPE_JOB,
+                                          G_TYPE_BOOLEAN);
+
+        gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE (priv->model),
+                                              GD_MAIN_COLUMN_MTIME,
+                                              GTK_SORT_DESCENDING);
+
+        gtk_widget_set_hexpand (GTK_WIDGET (ev_recent_view), TRUE);
+        gtk_widget_set_vexpand (GTK_WIDGET (ev_recent_view), TRUE);
+        gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (ev_recent_view), GTK_SHADOW_IN);
+        gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (ev_recent_view),
+                                        GTK_POLICY_NEVER,
+                                        GTK_POLICY_AUTOMATIC);
+        priv->recent_manager_changed_handler_id =
+                g_signal_connect_swapped (priv->recent_manager,
+                                          "changed",
+                                          G_CALLBACK (ev_recent_view_refresh),
+                                          ev_recent_view);
+}
+
+static void
+ev_recent_view_class_init (EvRecentViewClass *klass)
+{
+        GObjectClass *g_object_class = G_OBJECT_CLASS (klass);
+
+        g_object_class->constructed = ev_recent_view_constructed;
+        g_object_class->dispose = ev_recent_view_dispose;
+
+        signals[ITEM_ACTIVATED] =
+                  g_signal_new ("item-activated",
+                                EV_TYPE_RECENT_VIEW,
+                                G_SIGNAL_RUN_LAST,
+                                0, NULL, NULL,
+                                g_cclosure_marshal_generic,
+                                G_TYPE_NONE, 1,
+                                G_TYPE_STRING);
+
+        g_type_class_add_private (klass, sizeof (EvRecentViewPrivate));
+}
+
+EvRecentView *
+ev_recent_view_new (void)
+{
+        return EV_RECENT_VIEW (g_object_new (EV_TYPE_RECENT_VIEW, NULL));
+}
diff --git a/shell/ev-recent-view.h b/shell/ev-recent-view.h
new file mode 100644
index 0000000..6c4a11c
--- /dev/null
+++ b/shell/ev-recent-view.h
@@ -0,0 +1,56 @@
+/* this file is part of evince, a gnome document viewer
+ *
+ *  Copyright (C) 2013 Aakash Goenka
+ *
+ * Evince 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.
+ *
+ * Evince 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __EV_RECENT_VIEW_H__
+#define __EV_RECENT_VIEW_H__
+
+#include <glib-object.h>
+#include <gtk/gtk.h>
+
+G_BEGIN_DECLS
+
+typedef struct _EvRecentView        EvRecentView;
+typedef struct _EvRecentViewClass   EvRecentViewClass;
+typedef struct _EvRecentViewPrivate EvRecentViewPrivate;
+
+#define EV_TYPE_RECENT_VIEW              (ev_recent_view_get_type ())
+#define EV_RECENT_VIEW(obj)              (G_TYPE_CHECK_INSTANCE_CAST ((obj), EV_TYPE_RECENT_VIEW, 
EvRecentView))
+#define EV_IS_RECENT_VIEW(obj)           (G_TYPE_CHECK_INSTANCE_TYPE ((obj), EV_TYPE_RECENT_VIEW))
+#define EV_RECENT_VIEW_CLASS(klass)      (G_TYPE_CHECK_CLASS_CAST((klass), EV_TYPE_RECENT_VIEW, 
EvRecentViewClass))
+#define EV_IS_RECENT_VIEW_CLASS(klass)   (G_TYPE_CHECK_CLASS_TYPE((klass), EV_TYPE_RECENT_VIEW))
+#define EV_RECENT_VIEW_GET_CLASS(obj)    (G_TYPE_INSTANCE_GET_CLASS((obj), EV_TYPE_RECENT_VIEW, 
EvRecentViewClass))
+
+struct _EvRecentView
+{
+        GtkScrolledWindow parent;
+
+        EvRecentViewPrivate *priv;
+};
+
+struct _EvRecentViewClass
+{
+        GtkScrolledWindowClass parent_class;
+};
+
+GType         ev_recent_view_get_type          (void) G_GNUC_CONST;
+EvRecentView *ev_recent_view_new               (void);
+
+G_END_DECLS
+
+#endif /* __EV_RECENT_VIEW_H__ */
diff --git a/shell/evince.gresource.xml b/shell/evince.gresource.xml
index 83c1dd7..6ab80bf 100644
--- a/shell/evince.gresource.xml
+++ b/shell/evince.gresource.xml
@@ -20,5 +20,6 @@
     <file alias="ui/evince.xml" compressed="true" preprocess="xml-stripblanks">evince-ui.xml</file>
     <file alias="ui/evince.css" compressed="true">evince.css</file>
     <file alias="ui/appmenu.ui" compressed="true" preprocess="xml-stripblanks">evince-appmenu.ui</file>
+    <file alias="ui/thumbnail-frame.png" compressed="true">thumbnail-frame.png</file>
   </gresource>
 </gresources>
diff --git a/shell/thumbnail-frame.png b/shell/thumbnail-frame.png
new file mode 100644
index 0000000..ba5d721
Binary files /dev/null and b/shell/thumbnail-frame.png differ


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