[recipes/temperature: 3/3] Add an 'add temperature' button

[Matthias Clasen <matthiasc src gnome org>]

commit 86c538359525162836d35b4fbf77344f76a7c9db
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Feb 15 10:14:53 2017 -0500

    Add an 'add temperature' button
    
    This is similar to the other add buttons we have on the edit
    page, to support the new markup for temperatures.

 src/gr-edit-page.c  |   47 +++++++++++++++++++++++++++++
 src/gr-edit-page.ui |   82 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 129 insertions(+), 0 deletions(-)
---
diff --git a/src/gr-edit-page.c b/src/gr-edit-page.c
index 76bae6b..6cf4853 100644
--- a/src/gr-edit-page.c
+++ b/src/gr-edit-page.c
@@ -111,6 +111,9 @@ struct _GrEditPage
         GtkWidget *image_popover;
         GtkWidget *image_flowbox;
         GtkWidget *timer_popover;
+        GtkWidget *temperature_popover;
+        GtkWidget *temperature_spin;
+        GtkWidget *celsius_button;
         GtkWidget *timer_spin;
         GtkWidget *preview_stack;
 
@@ -947,6 +950,18 @@ add_tag_to_step (GrEditPage *self,
 }
 
 static void
+add_tag_at_insert (GrEditPage *self,
+                   const char *tag)
+{
+        GtkTextBuffer *buffer;
+        GtkTextIter start;
+
+        buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (self->instructions_field));
+        gtk_text_buffer_get_iter_at_mark (buffer, &start, gtk_text_buffer_get_insert (buffer));
+        gtk_text_buffer_insert (buffer, &start, tag, -1);
+}
+
+static void
 image_activated (GtkFlowBox *flowbox,
                  GtkFlowBoxChild *child,
                  GrEditPage *self)
@@ -1103,6 +1118,33 @@ add_timer (GtkButton *button, GrEditPage *page)
 }
 
 static void
+temperature_spin_activate (GtkEntry *entry, GrEditPage *self)
+{
+        int value;
+        g_autofree char *text = NULL;
+        const char *unit;
+
+        gtk_spin_button_update (GTK_SPIN_BUTTON (entry));
+
+        value = gtk_spin_button_get_value_as_int (GTK_SPIN_BUTTON (entry));
+        if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (self->celsius_button)))
+                unit = "C";
+        else
+                unit = "F";
+
+        text = g_strdup_printf ("[temperature:%d%s]", value, unit);
+        add_tag_at_insert (self, text);
+
+        gtk_popover_popdown (GTK_POPOVER (self->temperature_popover));
+        gtk_widget_grab_focus (self->instructions_field);
+}
+static void
+add_temperature (GtkButton *button, GrEditPage *page)
+{
+        gtk_popover_popup (GTK_POPOVER (page->temperature_popover));
+}
+
+static void
 add_step (GtkButton *button, GrEditPage *self)
 {
         GtkTextBuffer *buffer;
@@ -1349,6 +1391,9 @@ gr_edit_page_class_init (GrEditPageClass *klass)
         gtk_widget_class_bind_template_child (widget_class, GrEditPage, image_popover);
         gtk_widget_class_bind_template_child (widget_class, GrEditPage, image_flowbox);
         gtk_widget_class_bind_template_child (widget_class, GrEditPage, timer_popover);
+        gtk_widget_class_bind_template_child (widget_class, GrEditPage, temperature_popover);
+        gtk_widget_class_bind_template_child (widget_class, GrEditPage, temperature_spin);
+        gtk_widget_class_bind_template_child (widget_class, GrEditPage, celsius_button);
         gtk_widget_class_bind_template_child (widget_class, GrEditPage, timer_spin);
         gtk_widget_class_bind_template_child (widget_class, GrEditPage, preview_stack);
         gtk_widget_class_bind_template_child (widget_class, GrEditPage, cooking_view);
@@ -1377,6 +1422,7 @@ gr_edit_page_class_init (GrEditPageClass *klass)
         gtk_widget_class_bind_template_callback (widget_class, add_image_link);
         gtk_widget_class_bind_template_callback (widget_class, add_timer);
         gtk_widget_class_bind_template_callback (widget_class, add_step);
+        gtk_widget_class_bind_template_callback (widget_class, add_temperature);
         gtk_widget_class_bind_template_callback (widget_class, image_activated);
 
         gtk_widget_class_bind_template_callback (widget_class, set_default_image);
@@ -1385,6 +1431,7 @@ gr_edit_page_class_init (GrEditPageClass *klass)
         gtk_widget_class_bind_template_callback (widget_class, time_spin_input);
         gtk_widget_class_bind_template_callback (widget_class, time_spin_output);
         gtk_widget_class_bind_template_callback (widget_class, time_spin_activate);
+        gtk_widget_class_bind_template_callback (widget_class, temperature_spin_activate);
         gtk_widget_class_bind_template_callback (widget_class, preview_visible_changed);
         gtk_widget_class_bind_template_callback (widget_class, prev_step);
         gtk_widget_class_bind_template_callback (widget_class, next_step);
diff --git a/src/gr-edit-page.ui b/src/gr-edit-page.ui
index 95090a1..7384008 100644
--- a/src/gr-edit-page.ui
+++ b/src/gr-edit-page.ui
@@ -750,6 +750,14 @@
                       </object>
                     </child>
                     <child>
+                      <object class="GtkButton" id="temperature_button">
+                        <property name="visible">1</property>
+                        <property name="halign">start</property>
+                        <property name="label" translatable="yes">Add Temperature</property>
+                        <signal name="clicked" handler="add_temperature"/>
+                      </object>
+                    </child>
+                    <child>
                       <object class="GtkButton" id="prev_step_button">
                         <property name="halign">start</property>
                         <signal name="clicked" handler="prev_step" swapped="yes"/>
@@ -1023,6 +1031,58 @@
       </object>
     </child>
   </object>
+  <object class="GtkAdjustment" id="temperature_adjustment">
+    <property name="upper">500</property>
+    <property name="step-increment">1</property>
+    <property name="page-increment">10</property>
+  </object>
+  <object class="GtkPopover" id="temperature_popover">
+    <property name="relative-to">temperature_button</property>
+    <property name="constrain-to">none</property>
+    <child>
+      <object class="GtkBox">
+        <property name="visible">1</property>
+        <style>
+          <class name="linked"/>
+        </style>
+        <child>
+          <object class="GtkSpinButton" id="temperature_spin">
+            <property name="visible">1</property>
+            <property name="width-chars">4</property>
+            <property name="adjustment">temperature_adjustment</property>
+            <signal name="activate" handler="temperature_spin_activate"/>
+          </object>
+        </child>
+        <child>
+          <object class="GtkRadioButton" id="celsius_button">
+            <property name="visible">1</property>
+            <property name="draw-indicator">0</property>
+            <property name="valign">center</property>
+            <child>
+              <object class="GtkLabel">
+                <property name="visible">1</property>
+                <property name="label">C</property>
+              </object>
+            </child>
+          </object>
+        </child>
+        <child>
+          <object class="GtkRadioButton" id="fahrenheit_button">
+            <property name="visible">1</property>
+            <property name="draw-indicator">0</property>
+            <property name="group">celsius_button</property>
+            <property name="valign">center</property>
+            <child>
+              <object class="GtkLabel">
+                <property name="visible">1</property>
+                <property name="label">F</property>
+              </object>
+            </child>
+          </object>
+        </child>
+      </object>
+    </child>
+  </object>
   <object class="GtkPopover" id="directions_help_popover">
     <property name="relative-to">directions_help_button</property>
     <property name="constrain-to">none</property>
@@ -1116,6 +1176,28 @@
             <property name="top-attach">4</property>
           </packing>
         </child>
+        <child>
+          <object class="GtkLabel">
+            <property name="visible">1</property>
+            <property name="xalign">0</property>
+            <property name="label" translatable="yes">Temperature</property>
+          </object>
+          <packing>
+            <property name="left-attach">0</property>
+            <property name="top-attach">5</property>
+          </packing>
+        </child>
+        <child>
+          <object class="GtkLabel">
+            <property name="visible">1</property>
+            <property name="xalign">0</property>
+            <property name="label">[temperature:200C]</property>
+          </object>
+          <packing>
+            <property name="left-attach">1</property>
+            <property name="top-attach">5</property>
+          </packing>
+        </child>
       </object>
     </child>
   </object>