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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/extensions/extension_input_api.h"
#include <string>
#include "app/keyboard_code_conversion.h"
#include "base/values.h"
#include "chrome/browser/browser_window.h"
#include "chrome/browser/extensions/extension_tabs_module.h"
#include "chrome/browser/renderer_host/render_view_host.h"
#include "chrome/browser/tab_contents/tab_contents.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/views/frame/browser_view.h"
#include "chrome/common/native_web_keyboard_event.h"
#include "third_party/WebKit/WebKit/chromium/public/WebInputEvent.h"
#include "views/event.h"
#include "views/widget/root_view.h"
namespace {
// Keys.
const char kType[] = "type";
const char kKeyIdentifier[] = "keyIdentifier";
const char kAlt[] = "altKey";
const char kCtrl[] = "ctrlKey";
const char kMeta[] = "metaKey";
const char kShift[] = "shiftKey";
const char kKeyDown[] = "keydown";
const char kKeyUp[] = "keyup";
// Errors.
const char kUnknownEventTypeError[] = "Unknown event type.";
const char kUnknownOrUnsupportedKeyIdentiferError[] = "Unknown or unsupported "
"key identifier.";
const char kNoValidRecipientError[] = "No valid recipient for event.";
const char kKeyEventUnprocessedError[] = "Event was not handled.";
views::Event::EventType GetTypeFromString(const std::string& type) {
if (type == kKeyDown) {
return views::Event::ET_KEY_PRESSED;
} else if (type == kKeyUp) {
return views::Event::ET_KEY_RELEASED;
}
return views::Event::ET_UNKNOWN;
}
} // namespace
void InputFunction::Run() {
SendResponse(RunImpl());
}
views::RootView* SendKeyboardEventInputFunction::GetRootView() {
Browser* browser = GetCurrentBrowser();
if (!browser)
return NULL;
BrowserWindow* window = browser->window();
if (!window)
return NULL;
BrowserView* browser_view = BrowserView::GetBrowserViewForNativeWindow(
window->GetNativeHandle());
if (!browser_view)
return NULL;
return browser_view->GetRootView();
}
bool SendKeyboardEventInputFunction::RunImpl() {
DictionaryValue* args;
EXTENSION_FUNCTION_VALIDATE(args_->GetDictionary(0, &args));
std::string type_name;
EXTENSION_FUNCTION_VALIDATE(args->GetString(kType, &type_name));
views::Event::EventType type = GetTypeFromString(type_name);
if (type == views::Event::ET_UNKNOWN) {
error_ = kUnknownEventTypeError;
return false;
}
std::string identifier;
EXTENSION_FUNCTION_VALIDATE(args->GetString(kKeyIdentifier, &identifier));
app::KeyboardCode code = app::KeyCodeFromKeyIdentifier(identifier);
if (code == app::VKEY_UNKNOWN) {
error_ = kUnknownOrUnsupportedKeyIdentiferError;
return false;
}
int flags = 0;
bool alt = false;
if (args->GetBoolean(kAlt, &alt))
flags |= alt ? WebKit::WebInputEvent::AltKey : 0;
bool ctrl = false;
if (args->GetBoolean(kCtrl, &ctrl))
flags |= ctrl ? WebKit::WebInputEvent::ControlKey : 0;
bool meta = false;
if (args->GetBoolean(kMeta, &meta))
flags |= meta ? WebKit::WebInputEvent::MetaKey : 0;
bool shift = false;
if (args->GetBoolean(kShift, &shift))
flags |= shift ? WebKit::WebInputEvent::ShiftKey : 0;
views::RootView* root_view = GetRootView();
if (!root_view) {
error_ = kNoValidRecipientError;
return false;
}
views::KeyEvent event(type, code, flags, 0, 0);
if (!root_view->ProcessKeyEvent(event)) {
error_ = kKeyEventUnprocessedError;
return false;
}
return true;
}
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