From 4d161d5a0fb192c9b28074d39d6b5f93398483ee Mon Sep 17 00:00:00 2001
From: Christian Fiedler <fiedlchr@tu-cottbus.de>
Date: Wed, 21 Aug 2013 17:57:24 +0200
Subject: [PATCH] #168

---
 .../Pages/Events/EventPage.xaml.cs            | 51 ++++++++++++++++++-
 .../CampusAppWP8/Pages/News/NewsPage.xaml.cs  | 47 +++++++++++++++++
 .../CampusAppWP8/Properties/WMAppManifest.xml |  1 +
 .../Resources/AppResources.Designer.cs        |  9 ++++
 .../CampusAppWP8/Resources/AppResources.resx  |  3 ++
 CampusAppWP8/CampusAppWP8/Resources/Icons.cs  | 11 ++++
 .../CampusAppWP8/Resources/Icons.resx         |  3 ++
 7 files changed, 123 insertions(+), 2 deletions(-)

diff --git a/CampusAppWP8/CampusAppWP8/Pages/Events/EventPage.xaml.cs b/CampusAppWP8/CampusAppWP8/Pages/Events/EventPage.xaml.cs
index 893982e6..9283b491 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/Events/EventPage.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/Pages/Events/EventPage.xaml.cs
@@ -18,7 +18,8 @@ namespace CampusAppWP8.Pages.Events
     using CampusAppWP8.Utility;
     using Microsoft.Phone.Controls;
     using Microsoft.Phone.Shell;
-    
+    using Windows.Phone.Speech.Synthesis;
+
     /// <summary>
     /// EventPage, where every event fees has his own PivotItem.
     /// </summary>
@@ -39,6 +40,12 @@ namespace CampusAppWP8.Pages.Events
         /// </summary>
         private bool isNewInstance = false;
 
+        /// <summary>The speech synthesizer object.</summary>
+        private SpeechSynthesizer synth = null;
+
+        /// <summary>The is in speech. </summary>
+        private volatile bool isInSpeech = false;
+
         /// <summary>
         /// Initializes a new instance of the <see cref="EventPage" /> class.
         /// </summary>
@@ -52,7 +59,16 @@ namespace CampusAppWP8.Pages.Events
             linkBtn.Click += new EventHandler(this.EventLink_Click);
             ApplicationBar.Buttons.Add(linkBtn);
 
+            ApplicationBarIconButton ttsBtn = new ApplicationBarIconButton();
+            ttsBtn.IconUri = new Uri(Icons.TextToSpeech, UriKind.Relative);
+            ttsBtn.Text = AppResources.TextToSpeech_Btn;
+            ttsBtn.Click += new EventHandler(this.EventTextToSpeech_Click);
+            ApplicationBar.Buttons.Add(ttsBtn);
+
             this.isNewInstance = true;
+
+            this.synth = new SpeechSynthesizer();
+            this.isInSpeech = false;
         }
 
         /// <summary>
@@ -134,6 +150,11 @@ namespace CampusAppWP8.Pages.Events
             {
                 App.SaveToIsolatedStorage<RSSViewModel>(Constants.IsolatedStorage_EventRSSModel, EventIndexPage.GetEventFeed().GetModel());
             }
+
+            if (this.synth != null)
+            {
+                this.synth.CancelAll();
+            }
         }
 
         /// <summary>
@@ -151,7 +172,7 @@ namespace CampusAppWP8.Pages.Events
                 Utilities.SetElementVisibility(this.EventPivot, "EventParentGrid", "EventWebBrowser", Visibility.Collapsed, this.lastSelectedIndex);
                 Utilities.SetElementVisibility(this.EventPivot, "EventParentGrid", "EventTextGrid", Visibility.Visible, this.lastSelectedIndex);
             }
-            
+
             this.lastSelectedIndex = selIndex;
         }
 
@@ -175,5 +196,31 @@ namespace CampusAppWP8.Pages.Events
                 Utilities.SetElementVisibility(this.EventPivot, "EventParentGrid", "EventTextGrid", Visibility.Visible, this.EventPivot.SelectedIndex);
             }
         }
+
+        /// <summary>Event handler. Called by EventTextToSpeech for click events.</summary>
+        /// <param name="sender">parent pivot object.</param>
+        /// <param name="e">Event information.</param>
+        private async void EventTextToSpeech_Click(object sender, EventArgs e)
+        {
+            if (this.synth != null && this.isInSpeech == false)
+            {
+                string ssmlPrompt = "<speak version=\"1.0\" ";
+                ssmlPrompt += "xmlns=\"http://www.w3.org/2001/10/synthesis\" xml:lang=\"de-DE\">";
+                ssmlPrompt += EventIndexPage.GetEventFeed().GetModel().Channel[0].Item[this.EventPivot.SelectedIndex].Text;
+                ssmlPrompt += "</speak>";
+
+                this.isInSpeech = true;
+
+                try
+                {
+                    await this.synth.SpeakSsmlAsync(ssmlPrompt);
+                }
+                catch (Exception)
+                {
+                }
+
+                this.isInSpeech = false;
+            }
+        }
     }
 }
diff --git a/CampusAppWP8/CampusAppWP8/Pages/News/NewsPage.xaml.cs b/CampusAppWP8/CampusAppWP8/Pages/News/NewsPage.xaml.cs
index 3c26f7cb..3565b225 100644
--- a/CampusAppWP8/CampusAppWP8/Pages/News/NewsPage.xaml.cs
+++ b/CampusAppWP8/CampusAppWP8/Pages/News/NewsPage.xaml.cs
@@ -18,6 +18,7 @@ namespace CampusAppWP8.Pages.News
     using CampusAppWP8.Utility;
     using Microsoft.Phone.Controls;
     using Microsoft.Phone.Shell;
+    using Windows.Phone.Speech.Synthesis;
 
     /// <summary>
     /// EventPage, where every news fees has his own PivotItem.
@@ -39,6 +40,12 @@ namespace CampusAppWP8.Pages.News
         /// </summary>
         private bool isNewInstance = false;
 
+        /// <summary>The speech synthesizer object.</summary>
+        private SpeechSynthesizer synth = null;
+
+        /// <summary>The is in speech. </summary>
+        private volatile bool isInSpeech = false;
+
         /// <summary>
         /// Initializes a new instance of the <see cref="NewsPage" /> class.
         /// </summary>
@@ -52,7 +59,16 @@ namespace CampusAppWP8.Pages.News
             linkBtn.Click += new EventHandler(this.NewsLink_Click);
             ApplicationBar.Buttons.Add(linkBtn);
 
+            ApplicationBarIconButton ttsBtn = new ApplicationBarIconButton();
+            ttsBtn.IconUri = new Uri(Icons.TextToSpeech, UriKind.Relative);
+            ttsBtn.Text = AppResources.TextToSpeech_Btn;
+            ttsBtn.Click += new EventHandler(this.NewsTextToSpeech_Click);
+            ApplicationBar.Buttons.Add(ttsBtn);
+
             this.isNewInstance = true;
+
+            this.synth = new SpeechSynthesizer();
+            this.isInSpeech = false;
         }
 
         /// <summary>
@@ -127,6 +143,11 @@ namespace CampusAppWP8.Pages.News
             {
                 App.SaveToIsolatedStorage<RSSViewModel>(Constants.IsolatedStorage_NewsRSSModel, NewsIndexPage.GetNewsFeed().GetModel());
             }
+
+            if (this.synth != null)
+            {
+                this.synth.CancelAll();
+            }
         }
 
         /// <summary>
@@ -168,5 +189,31 @@ namespace CampusAppWP8.Pages.News
                 Utilities.SetElementVisibility(this.NewsPivot, "NewsParentGrid", "NewsTextGrid", Visibility.Visible, this.NewsPivot.SelectedIndex);
             }
         }
+
+        /// <summary>Event handler. Called by EventTextToSpeech for click events.</summary>
+        /// <param name="sender">parent pivot object.</param>
+        /// <param name="e">Event information.</param>
+        private async void NewsTextToSpeech_Click(object sender, EventArgs e)
+        {
+            if (this.synth != null && this.isInSpeech == false)
+            {
+                string ssmlPrompt = "<speak version=\"1.0\" ";
+                ssmlPrompt += "xmlns=\"http://www.w3.org/2001/10/synthesis\" xml:lang=\"de-DE\">";
+                ssmlPrompt += NewsIndexPage.GetNewsFeed().GetModel().Channel[0].Item[this.NewsPivot.SelectedIndex].Text;
+                ssmlPrompt += "</speak>";
+
+                this.isInSpeech = true;
+
+                try
+                {
+                    await this.synth.SpeakSsmlAsync(ssmlPrompt);
+                }
+                catch (Exception)
+                {
+                }
+
+                this.isInSpeech = false;
+            }
+        }
     }
 }
diff --git a/CampusAppWP8/CampusAppWP8/Properties/WMAppManifest.xml b/CampusAppWP8/CampusAppWP8/Properties/WMAppManifest.xml
index 94181ca5..4d8b94b2 100644
--- a/CampusAppWP8/CampusAppWP8/Properties/WMAppManifest.xml
+++ b/CampusAppWP8/CampusAppWP8/Properties/WMAppManifest.xml
@@ -15,6 +15,7 @@
       <Capability Name="ID_CAP_MEDIALIB_PLAYBACK" />
       <Capability Name="ID_CAP_MEDIALIB_PHOTO" />
       <Capability Name="ID_CAP_MICROPHONE" />
+      <Capability Name="ID_CAP_SPEECH_RECOGNITION" />
     </Capabilities>
     <Tasks>
       <DefaultTask Name="_default" NavigationPage="Pages/StartPage.xaml" />
diff --git a/CampusAppWP8/CampusAppWP8/Resources/AppResources.Designer.cs b/CampusAppWP8/CampusAppWP8/Resources/AppResources.Designer.cs
index 23bebb98..7b79160f 100644
--- a/CampusAppWP8/CampusAppWP8/Resources/AppResources.Designer.cs
+++ b/CampusAppWP8/CampusAppWP8/Resources/AppResources.Designer.cs
@@ -852,6 +852,15 @@ namespace CampusAppWP8.Resources {
             }
         }
         
+        /// <summary>
+        ///   Sucht eine lokalisierte Zeichenfolge, die vorlesen ähnelt.
+        /// </summary>
+        public static string TextToSpeech_Btn {
+            get {
+                return ResourceManager.GetString("TextToSpeech_Btn", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Sucht eine lokalisierte Zeichenfolge, die Freitag ähnelt.
         /// </summary>
diff --git a/CampusAppWP8/CampusAppWP8/Resources/AppResources.resx b/CampusAppWP8/CampusAppWP8/Resources/AppResources.resx
index a0baa5ea..db84d97c 100644
--- a/CampusAppWP8/CampusAppWP8/Resources/AppResources.resx
+++ b/CampusAppWP8/CampusAppWP8/Resources/AppResources.resx
@@ -413,4 +413,7 @@
   <data name="QRReader_Search" xml:space="preserve">
     <value>... suche</value>
   </data>
+  <data name="TextToSpeech_Btn" xml:space="preserve">
+    <value>vorlesen</value>
+  </data>
 </root>
\ No newline at end of file
diff --git a/CampusAppWP8/CampusAppWP8/Resources/Icons.cs b/CampusAppWP8/CampusAppWP8/Resources/Icons.cs
index 8d43489b..7d6a9c8a 100644
--- a/CampusAppWP8/CampusAppWP8/Resources/Icons.cs
+++ b/CampusAppWP8/CampusAppWP8/Resources/Icons.cs
@@ -275,6 +275,17 @@ namespace CampusAppWP8.Resources
             }
         }
     
+        /// <summary>
+        /// Gets the uri string of the TextToSpeech icon.
+        /// </summary>
+        public static string TextToSpeech
+        {
+            get
+            {
+                return Themerize("info_159.png");
+            }
+        }
+    
         /// <summary>
         /// Gets the uri string of the Update icon.
         /// </summary>
diff --git a/CampusAppWP8/CampusAppWP8/Resources/Icons.resx b/CampusAppWP8/CampusAppWP8/Resources/Icons.resx
index 5f901171..f981d217 100644
--- a/CampusAppWP8/CampusAppWP8/Resources/Icons.resx
+++ b/CampusAppWP8/CampusAppWP8/Resources/Icons.resx
@@ -186,6 +186,9 @@
   <data name="StudentCouncil" xml:space="preserve">
     <value>student_council_159.png</value>
   </data>
+  <data name="TextToSpeech" xml:space="preserve">
+    <value>info_159.png</value>
+  </data>
   <data name="Update" xml:space="preserve">
     <value>update_159.png</value>
   </data>