Adds a global keyboard shortcut to trigger speech input in the currently

focused speech-enabled text input box, if any.

Depends on WebKit patch: https://bugs.webkit.org/show_bug.cgi?id=60170

BUG=94426
TEST=manual testing
Review URL: http://codereview.chromium.org/7046021

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@99471 0039d316-1c4b-4281-b951-d872f2087c98

5 files changed, 55 insertions, 1 deletions

diff --git a/content/browser/renderer_host/render_view_host.cc b/content/browser/renderer_host/render_view_host.cc
index f88940e..59cc504 100644
--- a/content/browser/renderer_host/render_view_host.cc
+++ b/content/browser/renderer_host/render_view_host.cc
@@ -38,6 +38,7 @@
 #include "content/common/notification_details.h"
 #include "content/common/notification_service.h"
 #include "content/common/result_codes.h"
+#include "content/common/speech_input_messages.h"
 #include "content/common/swapped_out_messages.h"
 #include "content/common/url_constants.h"
 #include "content/common/view_messages.h"
@@ -1237,6 +1238,10 @@ void RenderViewHost::DidCancelPopupMenu() {
 }
 #endif
 
+void RenderViewHost::ToggleSpeechInput() {
+  Send(new SpeechInputMsg_ToggleSpeechInput(routing_id()));
+}
+
 void RenderViewHost::FilterURL(ChildProcessSecurityPolicy* policy,
                                int renderer_id,
                                GURL* url) {
@@ -1366,4 +1371,3 @@ void RenderViewHost::OnRunFileChooser(
     const ViewHostMsg_RunFileChooser_Params& params) {
   delegate_->RunFileChooser(this, params);
 }
-
diff --git a/content/browser/renderer_host/render_view_host.h b/content/browser/renderer_host/render_view_host.h
index f403243..0e773ff 100644
--- a/content/browser/renderer_host/render_view_host.h
+++ b/content/browser/renderer_host/render_view_host.h
@@ -361,6 +361,8 @@ class RenderViewHost : public RenderWidgetHost {
   void DidCancelPopupMenu();
 #endif
 
+  void ToggleSpeechInput();
+
 #if defined(UNIT_TEST)
   // These functions shouldn't be necessary outside of testing.
 
diff --git a/content/common/speech_input_messages.h b/content/common/speech_input_messages.h
index df7f90f..2e2e27e 100644
--- a/content/common/speech_input_messages.h
+++ b/content/common/speech_input_messages.h
@@ -74,3 +74,7 @@ IPC_MESSAGE_ROUTED1(SpeechInputMsg_RecordingComplete,
 IPC_MESSAGE_ROUTED1(SpeechInputMsg_RecognitionComplete,
                     int /* request_id */)
 
+// Toggle speech input on or off on the speech input control for the
+// current focused element. Has no effect if the current element doesn't
+// support speech input.
+IPC_MESSAGE_ROUTED0(SpeechInputMsg_ToggleSpeechInput)
diff --git a/content/renderer/speech_input_dispatcher.cc b/content/renderer/speech_input_dispatcher.cc
index b7a95a8..af798e4 100644
--- a/content/renderer/speech_input_dispatcher.cc
+++ b/content/renderer/speech_input_dispatcher.cc
@@ -7,14 +7,23 @@
 #include "base/utf_string_conversions.h"
 #include "content/common/speech_input_messages.h"
 #include "content/renderer/render_view.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebDocument.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebElement.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebInputElement.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebNode.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebSize.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebSecurityOrigin.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebSpeechInputListener.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebString.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
 
+using WebKit::WebDocument;
+using WebKit::WebElement;
 using WebKit::WebFrame;
+using WebKit::WebInputElement;
+using WebKit::WebNode;
+using WebKit::WebView;
 
 SpeechInputDispatcher::SpeechInputDispatcher(
     RenderView* render_view,
@@ -32,6 +41,8 @@ bool SpeechInputDispatcher::OnMessageReceived(const IPC::Message& message) {
                         OnSpeechRecordingComplete)
     IPC_MESSAGE_HANDLER(SpeechInputMsg_RecognitionComplete,
                         OnSpeechRecognitionComplete)
+    IPC_MESSAGE_HANDLER(SpeechInputMsg_ToggleSpeechInput,
+                        OnSpeechRecognitionToggleSpeechInput)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
@@ -93,3 +104,35 @@ void SpeechInputDispatcher::OnSpeechRecognitionComplete(int request_id) {
   listener_->didCompleteRecognition(request_id);
   VLOG(1) << "SpeechInputDispatcher::OnSpeechRecognitionComplete exit";
 }
+
+void SpeechInputDispatcher::OnSpeechRecognitionToggleSpeechInput() {
+  VLOG(1) << "SpeechInputDispatcher::OnSpeechRecognitionToggleSpeechInput";
+
+  WebView* web_view = render_view()->webview();
+
+  WebFrame* frame = web_view->mainFrame();
+  if (!frame)
+    return;
+
+  WebDocument document = frame->document();
+  if (document.isNull())
+    return;
+
+  WebNode focusedNode = document.focusedNode();
+  if (focusedNode.isNull() || !focusedNode.isElementNode())
+    return;
+
+  WebKit::WebElement element = focusedNode.to<WebKit::WebElement>();
+  if (!element.isTextFormControlElement())
+    return;
+
+  WebKit::WebInputElement inputElement = element.to<WebKit::WebInputElement>();
+  if (!inputElement.isSpeechInputEnabled())
+    return;
+
+  if (inputElement.getSpeechInputState() == WebInputElement::Idle) {
+    inputElement.startSpeechInput();
+  } else {
+    inputElement.stopSpeechInput();
+  }
+}
diff --git a/content/renderer/speech_input_dispatcher.h b/content/renderer/speech_input_dispatcher.h
index b235886..6d44c3a 100644
--- a/content/renderer/speech_input_dispatcher.h
+++ b/content/renderer/speech_input_dispatcher.h
@@ -42,6 +42,7 @@ class SpeechInputDispatcher : public RenderViewObserver,
       int request_id, const speech_input::SpeechInputResultArray& result);
   void OnSpeechRecordingComplete(int request_id);
   void OnSpeechRecognitionComplete(int request_id);
+  void OnSpeechRecognitionToggleSpeechInput();
 
   WebKit::WebSpeechInputListener* listener_;