[recipes] Add a 'Whats New' dialog

[Matthias Clasen <matthiasc src gnome org>]

commit f20b2add7fb919a7c4f6ed3f91c8ebf1894b3af5
Author: Matthias Clasen <mclasen redhat com>
Date:   Sat Feb 25 20:25:11 2017 -0500

    Add a 'Whats New' dialog
    
    This shows the changes in each release.

 po/POTFILES.in                 |    2 +
 src/gr-app.c                   |   12 +++++++
 src/gr-window.c                |   67 ++++++++++++++++++++++++++++++++++++++++
 src/gr-window.h                |    1 +
 src/menus.ui                   |    4 ++
 src/recipe-whats-new-dialog.ui |   34 ++++++++++++++++++++
 src/recipes-ui.gresource.xml   |    1 +
 src/recipes.css                |    5 +++
 8 files changed, 126 insertions(+), 0 deletions(-)
---
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 75f0560..ef48845 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -27,6 +27,8 @@ src/gr-window.ui
 src/menus.ui
 src/recipe-conflict-dialog.ui
 src/recipe-export-dialog.ui
+src/recipe-welcome-dialog.ui
+src/recipe-whats-new-dialog.ui
 src/gr-about-dialog.c
 src/gr-account.c
 src/gr-app.c
diff --git a/src/gr-app.c b/src/gr-app.c
index 9711d5a..db4e46b 100644
--- a/src/gr-app.c
+++ b/src/gr-app.c
@@ -107,6 +107,17 @@ about_activated (GSimpleAction *action,
 }
 
 static void
+news_activated (GSimpleAction *action,
+                GVariant      *parameter,
+                gpointer       app)
+{
+        GtkWindow *win;
+
+        win = gtk_application_get_active_window (GTK_APPLICATION (app));
+        gr_window_show_news (GR_WINDOW (win));
+}
+
+static void
 quit_activated (GSimpleAction *action,
                 GVariant      *parameter,
                 gpointer       app)
@@ -165,6 +176,7 @@ static GActionEntry app_entries[] =
         { "timer-expired", timer_expired, "(si)", NULL, NULL },
         { "chef-information", chef_information_activated, NULL, NULL, NULL },
         { "about", about_activated, NULL, NULL, NULL },
+        { "news", news_activated, NULL, NULL, NULL },
         { "import", import_activated, NULL, NULL, NULL },
         { "details", details_activated, "(ss)", NULL, NULL },
         { "search", search_activated, "s", NULL, NULL },
diff --git a/src/gr-window.c b/src/gr-window.c
index 86d2272..84b7771 100644
--- a/src/gr-window.c
+++ b/src/gr-window.c
@@ -40,6 +40,8 @@
 #include "gr-recipe-importer.h"
 #include "gr-about-dialog.h"
 #include "gr-account.h"
+#include "gr-utils.h"
+#include "gr-appdata.h"
 
 
 struct _GrWindow
@@ -1145,3 +1147,68 @@ gr_window_show_about_dialog (GrWindow *window)
         g_signal_connect (window->about_dialog, "response", G_CALLBACK (about_response), window);
         gr_window_present_dialog (window, GTK_WINDOW (window->about_dialog));
 }
+
+void
+gr_window_show_news (GrWindow *window)
+{
+        g_autoptr(GPtrArray) news = NULL;
+        g_autoptr(GtkBuilder) builder = NULL;
+        GtkWindow *dialog;
+        GtkWidget *box;
+        int i;
+
+        news = get_release_info (PACKAGE_VERSION, "0.0.0");
+        if (news->len == 0)
+                return;
+
+        builder = gtk_builder_new_from_resource ("/org/gnome/Recipes/recipe-whats-new-dialog.ui");
+        dialog = GTK_WINDOW (gtk_builder_get_object (builder, "dialog"));
+        gtk_window_set_transient_for (dialog, GTK_WINDOW (window));
+        box = GTK_WIDGET (gtk_builder_get_object (builder, "box"));
+
+        for (i = 0; i < news->len; i++) {
+                ReleaseInfo *ri = g_ptr_array_index (news, i);
+                GtkWidget *heading;
+                GtkWidget *image;
+                GtkWidget *label;
+                GtkStyleContext *context;
+                g_autofree char *title = NULL;
+
+                heading = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 10);
+                gtk_widget_set_halign (heading, GTK_ALIGN_CENTER);
+                image = gtk_image_new_from_icon_name ("org.gnome.Recipes-symbolic", 1);
+                gtk_image_set_pixel_size (GTK_IMAGE (image), 32);
+                gtk_container_add (GTK_CONTAINER (heading), image);
+                title = g_strdup_printf (_("Recipes %s"), ri->version);
+                label = gtk_label_new (title);
+                gtk_label_set_xalign (GTK_LABEL (label), 0.0);
+                context = gtk_widget_get_style_context (label);
+                gtk_style_context_add_class (context, "heading");
+                gtk_style_context_add_class (context, "welcome");
+                gtk_container_add (GTK_CONTAINER (heading), label);
+                gtk_container_add (GTK_CONTAINER (box), heading);
+
+                if (ri->date) {
+                        g_autofree char *date = NULL;
+                        g_autofree char *release = NULL;
+
+                        date = g_date_time_format (ri->date, "%F");
+                        release = g_strdup_printf (_("Released: %s"), date);
+                        label = gtk_label_new (release);
+                        gtk_label_set_xalign (GTK_LABEL (label), 0.0);
+                        gtk_container_add (GTK_CONTAINER (box), label);
+                }
+
+                if (ri->news) {
+                        label = gtk_label_new (ri->news);
+                        gtk_label_set_xalign (GTK_LABEL (label), 0.0);
+                        gtk_label_set_line_wrap (GTK_LABEL (label), TRUE);
+                        gtk_label_set_max_width_chars (GTK_LABEL (label), 55);
+                        gtk_label_set_width_chars (GTK_LABEL (label), 55);
+                        gtk_container_add (GTK_CONTAINER (box), label);
+                }
+        }
+
+        gtk_widget_show_all (box);
+        gr_window_present_dialog (GR_WINDOW (window), dialog);
+}
diff --git a/src/gr-window.h b/src/gr-window.h
index feaec31..b9a4c6e 100644
--- a/src/gr-window.h
+++ b/src/gr-window.h
@@ -83,5 +83,6 @@ void            gr_window_offer_shopping             (GrWindow   *window);
 
 void            gr_window_show_my_chef_information   (GrWindow   *window);
 void            gr_window_show_about_dialog          (GrWindow   *window);
+void            gr_window_show_news                  (GrWindow   *window);
 
 G_END_DECLS
diff --git a/src/menus.ui b/src/menus.ui
index f2ce0af..49a0a3f 100644
--- a/src/menus.ui
+++ b/src/menus.ui
@@ -15,6 +15,10 @@
     </section>
     <section>
       <item>
+        <attribute name="label" translatable="yes">_What's New</attribute>
+        <attribute name="action">app.news</attribute>
+      </item>
+      <item>
         <attribute name="label" translatable="yes">_About</attribute>
         <attribute name="action">app.about</attribute>
       </item>
diff --git a/src/recipe-whats-new-dialog.ui b/src/recipe-whats-new-dialog.ui
new file mode 100644
index 0000000..df80b70
--- /dev/null
+++ b/src/recipe-whats-new-dialog.ui
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<interface domain="gnome-recipes">
+  <object class="GtkWindow" id="dialog">
+    <property name="modal">1</property>
+    <property name="default-width">400</property>
+    <property name="default-height">600</property>
+    <property name="resizable">0</property>
+    <property name="title" translatable="yes">What's New in Recipes</property>
+    <property name="destroy-with-parent">1</property>
+    <child type="titlebar">
+      <object class="GtkHeaderBar">
+        <property name="visible">1</property>
+        <property name="title" translatable="yes">What's New in Recipes</property>
+        <property name="show-close-button">1</property>
+      </object>
+    </child>
+    <child>
+      <object class="GtkScrolledWindow">
+        <property name="visible">1</property>
+        <property name="hscrollbar-policy">never</property>
+        <property name="vscrollbar-policy">automatic</property>
+        <property name="min-content-height">600</property>
+        <child>
+          <object class="GtkBox" id="box">
+            <property name="visible">1</property>
+            <property name="margin">20</property>
+            <property name="spacing">20</property>
+            <property name="orientation">vertical</property>
+          </object>
+        </child>
+      </object>
+    </child>
+  </object>
+</interface>
diff --git a/src/recipes-ui.gresource.xml b/src/recipes-ui.gresource.xml
index 0ca1173..d63687c 100644
--- a/src/recipes-ui.gresource.xml
+++ b/src/recipes-ui.gresource.xml
@@ -29,6 +29,7 @@
     <file preprocess="xml-stripblanks">chef-conflict-dialog.ui</file>
     <file preprocess="xml-stripblanks">recipe-conflict-dialog.ui</file>
     <file preprocess="xml-stripblanks">recipe-export-dialog.ui</file>
+    <file preprocess="xml-stripblanks">recipe-whats-new-dialog.ui</file>
   </gresource>
   <gresource prefix="/org/gnome/Recipes/gtk">
     <file preprocess="xml-stripblanks">menus.ui</file>
diff --git a/src/recipes.css b/src/recipes.css
index 7eb7a6d..35650c0 100644
--- a/src/recipes.css
+++ b/src/recipes.css
@@ -8,6 +8,11 @@ label.heading {
   font-weight: bold;
 }
 
+label.welcome.heading {
+  font: 32px Cantarell;
+  font-weight: bold;
+}
+
 label.sidebar {
   background: none;
   border: none;