cef/libcef/browser/views/button_view.h

77 lines
2.8 KiB
C++

// Copyright 2016 The Chromium Embedded Framework Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be found
// in the LICENSE file.
#ifndef CEF_LIBCEF_BROWSER_VIEWS_BUTTON_VIEW_H_
#define CEF_LIBCEF_BROWSER_VIEWS_BUTTON_VIEW_H_
#pragma once
#include "include/views/cef_button_delegate.h"
#include "libcef/browser/thread_util.h"
#include "libcef/browser/views/view_view.h"
#include "base/logging.h"
#include "ui/views/animation/ink_drop.h"
#include "ui/views/controls/button/button.h"
// Helpers for template boiler-plate.
#define CEF_BUTTON_VIEW_T CEF_VIEW_VIEW_T
#define CEF_BUTTON_VIEW_A CEF_VIEW_VIEW_A
#define CEF_BUTTON_VIEW_D CefButtonView<CEF_BUTTON_VIEW_A>
// Template for implementing views::Button-derived classes. The
// views::Button-derived type passed to this template must extend
// views::ButtonListener (for example, see LabelButtonEx from
// basic_label_button_view.h). See comments in view_impl.h for a usage overview.
CEF_BUTTON_VIEW_T class CefButtonView : public CEF_VIEW_VIEW_D {
public:
using ParentClass = CEF_VIEW_VIEW_D;
// |cef_delegate| may be nullptr.
template <typename... Args>
explicit CefButtonView(CefViewDelegateClass* cef_delegate, Args... args)
: ParentClass(cef_delegate, args...) {}
// Returns the CefButton associated with this view. See comments on
// CefViewView::GetCefView.
CefRefPtr<CefButton> GetCefButton() const {
CefRefPtr<CefButton> button = ParentClass::GetCefView()->AsButton();
DCHECK(button);
return button;
}
// views::Button methods:
void StateChanged(views::Button::ButtonState old_state) override;
// LabelButtonEx methods:
void ButtonPressed(const ui::Event& event) override;
};
CEF_BUTTON_VIEW_T void CEF_BUTTON_VIEW_D::StateChanged(
views::Button::ButtonState old_state) {
ParentClass::StateChanged(old_state);
if (ParentClass::cef_delegate())
ParentClass::cef_delegate()->OnButtonStateChanged(GetCefButton());
}
CEF_BUTTON_VIEW_T void CEF_BUTTON_VIEW_D::ButtonPressed(
const ui::Event& event) {
// Callback may trigger new animation state.
if (ParentClass::cef_delegate())
ParentClass::cef_delegate()->OnButtonPressed(GetCefButton());
if (views::InkDrop::Get(this)->ink_drop_mode() !=
views::InkDropHost::InkDropMode::OFF &&
!ParentClass::IsFocusable() &&
ParentClass::GetState() != views::Button::STATE_PRESSED) {
// Ink drop state does not get reset properly on click when the button is
// non-focusable. Reset the ink drop state here if the state has not been
// explicitly set to pressed by the OnButtonPressed callback calling
// SetState (which also sets the ink drop state).
views::InkDrop::Get(this)->AnimateToState(
views::InkDropState::HIDDEN, ui::LocatedEvent::FromIfValid(&event));
}
}
#endif // CEF_LIBCEF_BROWSER_VIEWS_BUTTON_VIEW_H_