Speak a message when accessibility is on and the network state changes

R=dmazzoni@chromium.org
BUG=chromium-os:21760
TEST=Change the network state with a11y turned on


Review URL: http://codereview.chromium.org/8402023

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@107689 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/chromeos/accessibility_util.cc

@@ -168,6 +168,14 @@ void Speak(const char* speak_str, bool queue, bool interruptible) {
       Speak(speak_str);
 }
 
+void MaybeSpeak(const char* speak_str, bool queue, bool interruptible) {
+  bool accessibility_enabled = g_browser_process &&
+      g_browser_process->local_state()->GetBoolean(
+          prefs::kAccessibilityEnabled);
+  if (accessibility_enabled) {
+    Speak(speak_str, queue, interruptible);
+  }
+}
 
 }  // namespace accessibility
 }  // namespace chromeos

chrome/browser/chromeos/accessibility_util.h

@@ -24,6 +24,9 @@ void ToggleAccessibility(WebUI* login_web_ui);
 // Speaks the specified string.
 void Speak(const char* speak_str, bool queue, bool interruptible);
 
+// Speaks the specified string if Accessibility is enabled.
+void MaybeSpeak(const char* speak_str, bool queue, bool interruptible);
+
 }  // namespace accessibility
 }  // namespace chromeos
 

chrome/browser/chromeos/status/network_menu_icon.cc

@@ -8,6 +8,7 @@
 #include <cmath>
 
 #include "base/utf_string_conversions.h"
+#include "chrome/browser/chromeos/accessibility_util.h"
 #include "chrome/browser/chromeos/cros/cros_library.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources.h"
@@ -207,6 +208,12 @@ class NetworkIcon {
       }
     }
     bool dirty = bitmap_.empty();
+    bool speak = false;
+    if ((Network::IsConnectedState(state_) && !network->connected()) ||
+        (Network::IsConnectingState(state_) && !network->connecting()) ||
+        (Network::IsDisconnectedState(state_) && !network->disconnected())) {
+      speak = true;
+    }
     if (state_ != network->state()) {
       state_ = network->state();
       dirty = true;
@@ -247,6 +254,37 @@ class NetworkIcon {
       UpdateIcon(network);
       GenerateBitmap();
     }
+    if (speak) {
+      std::string connection_string;
+      if (Network::IsConnectedState(state_)) {
+        switch (network->type()) {
+          case TYPE_ETHERNET:
+            connection_string = l10n_util::GetStringFUTF8(
+                IDS_STATUSBAR_NETWORK_CONNECTED_TOOLTIP,
+                l10n_util::GetStringUTF16(
+                    IDS_STATUSBAR_NETWORK_DEVICE_ETHERNET));
+            break;
+          default:
+            connection_string = l10n_util::GetStringFUTF8(
+                IDS_STATUSBAR_NETWORK_CONNECTED_TOOLTIP,
+                UTF8ToUTF16(network->name()));
+            break;
+        }
+      } else if (Network::IsConnectingState(state_)) {
+        const Network* connecting_network = cros->connecting_network();
+        if (connecting_network && connecting_network->type() != TYPE_ETHERNET) {
+          connection_string = l10n_util::GetStringFUTF8(
+              IDS_STATUSBAR_NETWORK_CONNECTING_TOOLTIP,
+              UTF8ToUTF16(connecting_network->name()));
+        }
+      } else if (Network::IsDisconnectedState(state_)) {
+        connection_string =  l10n_util::GetStringUTF8(
+            IDS_STATUSBAR_NETWORK_NO_NETWORK_TOOLTIP);
+      }
+      if (!connection_string.empty()) {
+        accessibility::MaybeSpeak(connection_string.c_str(), true, false);
+      }
+    }
   }
 
   // Sets up the base icon image.