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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/renderer/speech_input_dispatcher.h"
#include "base/utf_string_conversions.h"
#include "content/common/speech_input_messages.h"
#include "content/renderer/render_view_impl.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/platform/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/platform/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(
RenderViewImpl* render_view,
WebKit::WebSpeechInputListener* listener)
: content::RenderViewObserver(render_view),
listener_(listener) {
}
bool SpeechInputDispatcher::OnMessageReceived(const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(SpeechInputDispatcher, message)
IPC_MESSAGE_HANDLER(SpeechInputMsg_SetRecognitionResult,
OnSpeechRecognitionResult)
IPC_MESSAGE_HANDLER(SpeechInputMsg_RecordingComplete,
OnSpeechRecordingComplete)
IPC_MESSAGE_HANDLER(SpeechInputMsg_RecognitionComplete,
OnSpeechRecognitionComplete)
IPC_MESSAGE_HANDLER(SpeechInputMsg_ToggleSpeechInput,
OnSpeechRecognitionToggleSpeechInput)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
bool SpeechInputDispatcher::startRecognition(
int request_id,
const WebKit::WebRect& element_rect,
const WebKit::WebString& language,
const WebKit::WebString& grammar,
const WebKit::WebSecurityOrigin& origin) {
VLOG(1) << "SpeechInputDispatcher::startRecognition enter";
SpeechInputHostMsg_StartRecognition_Params params;
params.grammar = UTF16ToUTF8(grammar);
params.language = UTF16ToUTF8(language);
params.origin_url = UTF16ToUTF8(origin.toString());
params.render_view_id = routing_id();
params.request_id = request_id;
gfx::Size scroll = render_view()->GetWebView()->mainFrame()->scrollOffset();
params.element_rect = element_rect;
params.element_rect.Offset(-scroll.width(), -scroll.height());
Send(new SpeechInputHostMsg_StartRecognition(params));
VLOG(1) << "SpeechInputDispatcher::startRecognition exit";
return true;
}
void SpeechInputDispatcher::cancelRecognition(int request_id) {
VLOG(1) << "SpeechInputDispatcher::cancelRecognition enter";
Send(new SpeechInputHostMsg_CancelRecognition(routing_id(), request_id));
VLOG(1) << "SpeechInputDispatcher::cancelRecognition exit";
}
void SpeechInputDispatcher::stopRecording(int request_id) {
VLOG(1) << "SpeechInputDispatcher::stopRecording enter";
Send(new SpeechInputHostMsg_StopRecording(routing_id(), request_id));
VLOG(1) << "SpeechInputDispatcher::stopRecording exit";
}
void SpeechInputDispatcher::OnSpeechRecognitionResult(
int request_id,
const content::SpeechInputResult& result) {
VLOG(1) << "SpeechInputDispatcher::OnSpeechRecognitionResult enter";
WebKit::WebSpeechInputResultArray webkit_result(result.hypotheses.size());
for (size_t i = 0; i < result.hypotheses.size(); ++i) {
webkit_result[i].set(result.hypotheses[i].utterance,
result.hypotheses[i].confidence);
}
listener_->setRecognitionResult(request_id, webkit_result);
VLOG(1) << "SpeechInputDispatcher::OnSpeechRecognitionResult exit";
}
void SpeechInputDispatcher::OnSpeechRecordingComplete(int request_id) {
VLOG(1) << "SpeechInputDispatcher::OnSpeechRecordingComplete enter";
listener_->didCompleteRecording(request_id);
VLOG(1) << "SpeechInputDispatcher::OnSpeechRecordingComplete exit";
}
void SpeechInputDispatcher::OnSpeechRecognitionComplete(int request_id) {
VLOG(1) << "SpeechInputDispatcher::OnSpeechRecognitionComplete enter";
listener_->didCompleteRecognition(request_id);
VLOG(1) << "SpeechInputDispatcher::OnSpeechRecognitionComplete exit";
}
void SpeechInputDispatcher::OnSpeechRecognitionToggleSpeechInput() {
VLOG(1) << "SpeechInputDispatcher::OnSpeechRecognitionToggleSpeechInput";
WebView* web_view = render_view()->GetWebView();
WebFrame* frame = web_view->mainFrame();
if (!frame)
return;
WebDocument document = frame->document();
if (document.isNull())
return;
WebNode focused_node = document.focusedNode();
if (focused_node.isNull() || !focused_node.isElementNode())
return;
WebKit::WebElement element = focused_node.to<WebKit::WebElement>();
WebKit::WebInputElement* input_element = WebKit::toWebInputElement(&element);
if (!input_element)
return;
if (!input_element->isSpeechInputEnabled())
return;
if (input_element->getSpeechInputState() == WebInputElement::Idle) {
input_element->startSpeechInput();
} else {
input_element->stopSpeechInput();
}
}
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