// 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/tto/fde_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), m_dwTTOStyles(FDE_TTOSTYLE_SingleLine), m_iTTOAlign(FDE_TTOALIGNMENT_Center) {} 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(); UpdateTextOutStyles(); m_rtClient = GetClientRect(); m_rtCaption = m_rtClient; } void CFWL_PushButton::DrawWidget(CFX_Graphics* pGraphics, const CFX_Matrix* pMatrix) { if (!pGraphics) return; if (!m_pProperties->m_pThemeProvider) return; if (HasBorder()) { DrawBorder(pGraphics, CFWL_Part::Border, m_pProperties->m_pThemeProvider, pMatrix); } DrawBkground(pGraphics, m_pProperties->m_pThemeProvider, pMatrix); } void CFWL_PushButton::DrawBkground(CFX_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(¶m); } 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::UpdateTextOutStyles() { m_iTTOAlign = FDE_TTOALIGNMENT_TopLeft; m_dwTTOStyles = FDE_TTOSTYLE_SingleLine; } 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(CFX_Graphics* pGraphics, const CFX_Matrix* pMatrix) { DrawWidget(pGraphics, pMatrix); } 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) { if ((m_pProperties->m_dwStates & FWL_WGTSTATE_Focused) == 0) SetFocus(true); 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_fx, pMsg->m_fy)) { 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_fx, pMsg->m_fy)) { 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_fx, pMsg->m_fy)) { 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_fx, pMsg->m_fy)) 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); }