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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include "xfa/fwl/cfwl_pushbutton.h"
#include <memory>
#include <utility>
#include "third_party/base/ptr_util.h"
#include "xfa/fde/cfde_textout.h"
#include "xfa/fwl/cfwl_event.h"
#include "xfa/fwl/cfwl_eventmouse.h"
#include "xfa/fwl/cfwl_messagekey.h"
#include "xfa/fwl/cfwl_messagemouse.h"
#include "xfa/fwl/cfwl_notedriver.h"
#include "xfa/fwl/cfwl_themebackground.h"
#include "xfa/fwl/cfwl_themetext.h"
#include "xfa/fwl/ifwl_themeprovider.h"
CFWL_PushButton::CFWL_PushButton(const CFWL_App* app)
: CFWL_Widget(app, pdfium::MakeUnique<CFWL_WidgetProperties>(), nullptr),
m_bBtnDown(false) {}
CFWL_PushButton::~CFWL_PushButton() {}
FWL_Type CFWL_PushButton::GetClassID() const {
return FWL_Type::PushButton;
}
void CFWL_PushButton::SetStates(uint32_t dwStates) {
if (dwStates & FWL_WGTSTATE_Disabled) {
m_pProperties->m_dwStates = FWL_WGTSTATE_Disabled;
return;
}
CFWL_Widget::SetStates(dwStates);
}
void CFWL_PushButton::Update() {
if (IsLocked())
return;
if (!m_pProperties->m_pThemeProvider)
m_pProperties->m_pThemeProvider = GetAvailableTheme();
m_rtClient = GetClientRect();
m_rtCaption = m_rtClient;
}
void CFWL_PushButton::DrawWidget(CXFA_Graphics* pGraphics,
const CFX_Matrix& matrix) {
if (!pGraphics)
return;
IFWL_ThemeProvider* pTheme = m_pProperties->m_pThemeProvider.Get();
if (!pTheme)
return;
if (HasBorder())
DrawBorder(pGraphics, CFWL_Part::Border, pTheme, matrix);
DrawBkground(pGraphics, pTheme, &matrix);
}
void CFWL_PushButton::DrawBkground(CXFA_Graphics* pGraphics,
IFWL_ThemeProvider* pTheme,
const CFX_Matrix* pMatrix) {
CFWL_ThemeBackground param;
param.m_pWidget = this;
param.m_iPart = CFWL_Part::Background;
param.m_dwStates = GetPartStates();
param.m_pGraphics = pGraphics;
if (pMatrix)
param.m_matrix.Concat(*pMatrix);
param.m_rtPart = m_rtClient;
if (m_pProperties->m_dwStates & FWL_WGTSTATE_Focused)
param.m_pData = &m_rtCaption;
pTheme->DrawBackground(&param);
}
uint32_t CFWL_PushButton::GetPartStates() {
uint32_t dwStates = CFWL_PartState_Normal;
if (m_pProperties->m_dwStates & FWL_WGTSTATE_Focused)
dwStates |= CFWL_PartState_Focused;
if (m_pProperties->m_dwStates & FWL_WGTSTATE_Disabled)
dwStates = CFWL_PartState_Disabled;
else if (m_pProperties->m_dwStates & FWL_STATE_PSB_Pressed)
dwStates |= CFWL_PartState_Pressed;
else if (m_pProperties->m_dwStates & FWL_STATE_PSB_Hovered)
dwStates |= CFWL_PartState_Hovered;
return dwStates;
}
void CFWL_PushButton::OnProcessMessage(CFWL_Message* pMessage) {
if (!pMessage)
return;
if (!IsEnabled())
return;
switch (pMessage->GetType()) {
case CFWL_Message::Type::SetFocus:
OnFocusChanged(pMessage, true);
break;
case CFWL_Message::Type::KillFocus:
OnFocusChanged(pMessage, false);
break;
case CFWL_Message::Type::Mouse: {
CFWL_MessageMouse* pMsg = static_cast<CFWL_MessageMouse*>(pMessage);
switch (pMsg->m_dwCmd) {
case FWL_MouseCommand::LeftButtonDown:
OnLButtonDown(pMsg);
break;
case FWL_MouseCommand::LeftButtonUp:
OnLButtonUp(pMsg);
break;
case FWL_MouseCommand::Move:
OnMouseMove(pMsg);
break;
case FWL_MouseCommand::Leave:
OnMouseLeave(pMsg);
break;
default:
break;
}
break;
}
case CFWL_Message::Type::Key: {
CFWL_MessageKey* pKey = static_cast<CFWL_MessageKey*>(pMessage);
if (pKey->m_dwCmd == FWL_KeyCommand::KeyDown)
OnKeyDown(pKey);
break;
}
default:
break;
}
CFWL_Widget::OnProcessMessage(pMessage);
}
void CFWL_PushButton::OnDrawWidget(CXFA_Graphics* pGraphics,
const CFX_Matrix& matrix) {
DrawWidget(pGraphics, matrix);
}
void CFWL_PushButton::OnFocusChanged(CFWL_Message* pMsg, bool bSet) {
if (bSet)
m_pProperties->m_dwStates |= FWL_WGTSTATE_Focused;
else
m_pProperties->m_dwStates &= ~FWL_WGTSTATE_Focused;
RepaintRect(m_rtClient);
}
void CFWL_PushButton::OnLButtonDown(CFWL_MessageMouse* pMsg) {
m_bBtnDown = true;
m_pProperties->m_dwStates |= FWL_STATE_PSB_Hovered;
m_pProperties->m_dwStates |= FWL_STATE_PSB_Pressed;
RepaintRect(m_rtClient);
}
void CFWL_PushButton::OnLButtonUp(CFWL_MessageMouse* pMsg) {
m_bBtnDown = false;
if (m_rtClient.Contains(pMsg->m_pos)) {
m_pProperties->m_dwStates &= ~FWL_STATE_PSB_Pressed;
m_pProperties->m_dwStates |= FWL_STATE_PSB_Hovered;
} else {
m_pProperties->m_dwStates &= ~FWL_STATE_PSB_Hovered;
m_pProperties->m_dwStates &= ~FWL_STATE_PSB_Pressed;
}
if (m_rtClient.Contains(pMsg->m_pos)) {
CFWL_Event wmClick(CFWL_Event::Type::Click, this);
DispatchEvent(&wmClick);
}
RepaintRect(m_rtClient);
}
void CFWL_PushButton::OnMouseMove(CFWL_MessageMouse* pMsg) {
bool bRepaint = false;
if (m_bBtnDown) {
if (m_rtClient.Contains(pMsg->m_pos)) {
if ((m_pProperties->m_dwStates & FWL_STATE_PSB_Pressed) == 0) {
m_pProperties->m_dwStates |= FWL_STATE_PSB_Pressed;
bRepaint = true;
}
if (m_pProperties->m_dwStates & FWL_STATE_PSB_Hovered) {
m_pProperties->m_dwStates &= ~FWL_STATE_PSB_Hovered;
bRepaint = true;
}
} else {
if (m_pProperties->m_dwStates & FWL_STATE_PSB_Pressed) {
m_pProperties->m_dwStates &= ~FWL_STATE_PSB_Pressed;
bRepaint = true;
}
if ((m_pProperties->m_dwStates & FWL_STATE_PSB_Hovered) == 0) {
m_pProperties->m_dwStates |= FWL_STATE_PSB_Hovered;
bRepaint = true;
}
}
} else {
if (!m_rtClient.Contains(pMsg->m_pos))
return;
if ((m_pProperties->m_dwStates & FWL_STATE_PSB_Hovered) == 0) {
m_pProperties->m_dwStates |= FWL_STATE_PSB_Hovered;
bRepaint = true;
}
}
if (bRepaint)
RepaintRect(m_rtClient);
}
void CFWL_PushButton::OnMouseLeave(CFWL_MessageMouse* pMsg) {
m_bBtnDown = false;
m_pProperties->m_dwStates &= ~FWL_STATE_PSB_Hovered;
m_pProperties->m_dwStates &= ~FWL_STATE_PSB_Pressed;
RepaintRect(m_rtClient);
}
void CFWL_PushButton::OnKeyDown(CFWL_MessageKey* pMsg) {
if (pMsg->m_dwKeyCode != FWL_VKEY_Return)
return;
CFWL_EventMouse wmMouse(this);
wmMouse.m_dwCmd = FWL_MouseCommand::LeftButtonUp;
DispatchEvent(&wmMouse);
CFWL_Event wmClick(CFWL_Event::Type::Click, this);
DispatchEvent(&wmClick);
}