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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/views/controls/webview/unhandled_keyboard_event_handler.h"
#include "components/input/native_web_keyboard_event.h"
#include "ui/content_accelerators/accelerator_util.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/views/focus/focus_manager.h"
namespace views {
UnhandledKeyboardEventHandler::UnhandledKeyboardEventHandler() = default;
UnhandledKeyboardEventHandler::~UnhandledKeyboardEventHandler() = default;
bool UnhandledKeyboardEventHandler::HandleKeyboardEvent(
const input::NativeWebKeyboardEvent& event,
FocusManager* focus_manager) {
CHECK(focus_manager);
// Previous calls to TranslateMessage can generate Char events as well as
// RawKeyDown events, even if the latter triggered an accelerator. In these
// cases, we discard the Char events.
if (event.GetType() == blink::WebInputEvent::Type::kChar &&
ignore_next_char_event_) {
ignore_next_char_event_ = false;
return false;
}
// It's necessary to reset this flag, because a RawKeyDown event may not
// always generate a Char event.
ignore_next_char_event_ = false;
if (event.GetType() == blink::WebInputEvent::Type::kRawKeyDown) {
ui::Accelerator accelerator =
ui::GetAcceleratorFromNativeWebKeyboardEvent(event);
// This is tricky: we want to set ignore_next_char_event_ if
// ProcessAccelerator returns true. But ProcessAccelerator might delete
// |this| if the accelerator is a "close tab" one. So we speculatively
// set the flag and fix it if no event was handled.
ignore_next_char_event_ = true;
if (focus_manager->ProcessAccelerator(accelerator)) {
return true;
}
// ProcessAccelerator didn't handle the accelerator, so we know both
// that |this| is still valid, and that we didn't want to set the flag.
ignore_next_char_event_ = false;
}
if (event.GetType() == blink::WebInputEvent::Type::kKeyUp) {
const ui::Accelerator accelerator =
ui::GetAcceleratorFromNativeWebKeyboardEvent(event);
if (focus_manager->ProcessAccelerator(accelerator)) {
return true;
}
}
if (event.os_event) {
return HandleNativeKeyboardEvent(event, focus_manager);
}
return false;
}
} // namespace views
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