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// Copyright (c) 2010 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 "chrome/browser/speech/speech_input_bubble_controller.h"
#include "chrome/browser/browser_thread.h"
#include "chrome/browser/tab_contents/tab_contents.h"
#include "chrome/browser/tab_contents/tab_util.h"
#include "chrome/common/notification_registrar.h"
#include "chrome/common/notification_source.h"
#include "chrome/common/notification_type.h"
#include "gfx/rect.h"
namespace speech_input {
SpeechInputBubbleController::SpeechInputBubbleController(Delegate* delegate)
: delegate_(delegate),
current_bubble_caller_id_(0),
registrar_(new NotificationRegistrar) {
}
SpeechInputBubbleController::~SpeechInputBubbleController() {
DCHECK(bubbles_.size() == 0);
}
void SpeechInputBubbleController::CreateBubble(int caller_id,
int render_process_id,
int render_view_id,
const gfx::Rect& element_rect) {
if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) {
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
NewRunnableMethod(this, &SpeechInputBubbleController::CreateBubble,
caller_id, render_process_id, render_view_id,
element_rect));
return;
}
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
TabContents* tab_contents = tab_util::GetTabContentsByID(render_process_id,
render_view_id);
DCHECK_EQ(0u, bubbles_.count(caller_id));
SpeechInputBubble* bubble = SpeechInputBubble::Create(tab_contents, this,
element_rect);
if (!bubble) // could be null if tab or display rect were invalid.
return;
bubbles_[caller_id] = bubble;
UpdateTabContentsSubscription(caller_id, BUBBLE_ADDED);
}
void SpeechInputBubbleController::CloseBubble(int caller_id) {
ProcessRequestInUiThread(caller_id, REQUEST_CLOSE, string16(), 0);
}
void SpeechInputBubbleController::SetBubbleRecordingMode(int caller_id) {
ProcessRequestInUiThread(caller_id, REQUEST_SET_RECORDING_MODE,
string16(), 0);
}
void SpeechInputBubbleController::SetBubbleRecognizingMode(int caller_id) {
ProcessRequestInUiThread(caller_id, REQUEST_SET_RECOGNIZING_MODE,
string16(), 0);
}
void SpeechInputBubbleController::SetBubbleInputVolume(int caller_id,
float volume) {
ProcessRequestInUiThread(caller_id, REQUEST_SET_INPUT_VOLUME, string16(),
volume);
}
void SpeechInputBubbleController::SetBubbleMessage(int caller_id,
const string16& text) {
ProcessRequestInUiThread(caller_id, REQUEST_SET_MESSAGE, text, 0);
}
void SpeechInputBubbleController::UpdateTabContentsSubscription(
int caller_id, ManageSubscriptionAction action) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
// If there are any other bubbles existing for the same TabContents, we would
// have subscribed to tab close notifications on their behalf and we need to
// stay registered. So we don't change the subscription in such cases.
TabContents* tab_contents = bubbles_[caller_id]->tab_contents();
for (BubbleCallerIdMap::iterator iter = bubbles_.begin();
iter != bubbles_.end(); ++iter) {
if (iter->second->tab_contents() == tab_contents &&
iter->first != caller_id) {
// At least one other bubble exists for the same TabContents. So don't
// make any change to the subscription.
return;
}
}
if (action == BUBBLE_ADDED) {
registrar_->Add(this, NotificationType::TAB_CONTENTS_DESTROYED,
Source<TabContents>(tab_contents));
} else {
registrar_->Remove(this, NotificationType::TAB_CONTENTS_DESTROYED,
Source<TabContents>(tab_contents));
}
}
void SpeechInputBubbleController::Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details) {
if (type == NotificationType::TAB_CONTENTS_DESTROYED) {
// Cancel all bubbles and active recognition sessions for this tab.
TabContents* tab_contents = Source<TabContents>(source).ptr();
BubbleCallerIdMap::iterator iter = bubbles_.begin();
while (iter != bubbles_.end()) {
if (iter->second->tab_contents() == tab_contents) {
BrowserThread::PostTask(BrowserThread::IO, FROM_HERE,
NewRunnableMethod(
this,
&SpeechInputBubbleController::InvokeDelegateButtonClicked,
iter->first, SpeechInputBubble::BUTTON_CANCEL));
CloseBubble(iter->first);
// We expect to have a very small number of items in this map so
// redo-ing from start is ok.
iter = bubbles_.begin();
} else {
++iter;
}
}
} else {
NOTREACHED() << "Unknown notification";
}
}
void SpeechInputBubbleController::ProcessRequestInUiThread(
int caller_id, RequestType type, const string16& text, float volume) {
if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) {
BrowserThread::PostTask(BrowserThread::UI, FROM_HERE, NewRunnableMethod(
this, &SpeechInputBubbleController::ProcessRequestInUiThread,
caller_id, type, text, volume));
return;
}
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
// The bubble may have been closed before we got a chance to process this
// request. So check before proceeding.
if (!bubbles_.count(caller_id))
return;
bool change_active_bubble = (type == REQUEST_SET_RECORDING_MODE ||
type == REQUEST_SET_MESSAGE);
if (change_active_bubble) {
if (current_bubble_caller_id_ && current_bubble_caller_id_ != caller_id)
bubbles_[current_bubble_caller_id_]->Hide();
current_bubble_caller_id_ = caller_id;
}
SpeechInputBubble* bubble = bubbles_[caller_id];
switch (type) {
case REQUEST_SET_RECORDING_MODE:
bubble->SetRecordingMode();
break;
case REQUEST_SET_RECOGNIZING_MODE:
bubble->SetRecognizingMode();
break;
case REQUEST_SET_MESSAGE:
bubble->SetMessage(text);
break;
case REQUEST_SET_INPUT_VOLUME:
bubble->SetInputVolume(volume);
break;
case REQUEST_CLOSE:
if (current_bubble_caller_id_ == caller_id)
current_bubble_caller_id_ = 0;
UpdateTabContentsSubscription(caller_id, BUBBLE_REMOVED);
delete bubble;
bubbles_.erase(caller_id);
break;
default:
NOTREACHED();
break;
}
if (change_active_bubble)
bubble->Show();
}
void SpeechInputBubbleController::InfoBubbleButtonClicked(
SpeechInputBubble::Button button) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(current_bubble_caller_id_);
BrowserThread::PostTask(
BrowserThread::IO, FROM_HERE,
NewRunnableMethod(
this,
&SpeechInputBubbleController::InvokeDelegateButtonClicked,
current_bubble_caller_id_, button));
}
void SpeechInputBubbleController::InfoBubbleFocusChanged() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(current_bubble_caller_id_);
int old_bubble_caller_id = current_bubble_caller_id_;
current_bubble_caller_id_ = 0;
bubbles_[old_bubble_caller_id]->Hide();
BrowserThread::PostTask(
BrowserThread::IO, FROM_HERE,
NewRunnableMethod(
this,
&SpeechInputBubbleController::InvokeDelegateFocusChanged,
old_bubble_caller_id));
}
void SpeechInputBubbleController::InvokeDelegateButtonClicked(
int caller_id, SpeechInputBubble::Button button) {
delegate_->InfoBubbleButtonClicked(caller_id, button);
}
void SpeechInputBubbleController::InvokeDelegateFocusChanged(int caller_id) {
delegate_->InfoBubbleFocusChanged(caller_id);
}
} // namespace speech_input
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