Merge IFWL and CFWL classes.

xfa/fwl/core/cfwl_pushbutton.cpp

 // 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/core/cfwl_pushbutton.h"
 
 #include <memory>
+#include <utility>
 
 #include "third_party/base/ptr_util.h"
-
-CFWL_PushButton::CFWL_PushButton(const CFWL_App* app) : CFWL_Widget(app) {}
+#include "xfa/fde/tto/fde_textout.h"
+#include "xfa/fwl/core/cfwl_evtclick.h"
+#include "xfa/fwl/core/cfwl_evtmouse.h"
+#include "xfa/fwl/core/cfwl_msgkey.h"
+#include "xfa/fwl/core/cfwl_msgmouse.h"
+#include "xfa/fwl/core/cfwl_notedriver.h"
+#include "xfa/fwl/core/cfwl_themebackground.h"
+#include "xfa/fwl/core/cfwl_themetext.h"
+#include "xfa/fwl/core/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) {
+  m_rtClient.Set(0, 0, 0, 0);
+  m_rtCaption.Set(0, 0, 0, 0);
+}
 
 CFWL_PushButton::~CFWL_PushButton() {}
 
-void CFWL_PushButton::Initialize() {
-  ASSERT(!m_pIface);
-
-  m_pIface = pdfium::MakeUnique<IFWL_PushButton>(
-      m_pApp, pdfium::MakeUnique<CFWL_WidgetProperties>());
-
-  CFWL_Widget::Initialize();
-}
-
+FWL_Type CFWL_PushButton::GetClassID() const {
+  return FWL_Type::PushButton;
+}
+
+void CFWL_PushButton::GetWidgetRect(CFX_RectF& rect, bool bAutoSize) {
+  if (!bAutoSize) {
+    rect = m_pProperties->m_rtWidget;
+    return;
+  }
+
+  rect.Set(0, 0, 0, 0);
+  if (!m_pProperties->m_pThemeProvider)
+    m_pProperties->m_pThemeProvider = GetAvailableTheme();
+
+  FX_FLOAT* fcaption =
+      static_cast<FX_FLOAT*>(GetThemeCapacity(CFWL_WidgetCapacity::Margin));
+  rect.Inflate(*fcaption, *fcaption);
+  CFWL_Widget::GetWidgetRect(rect, true);
+}
+
+void CFWL_PushButton::SetStates(uint32_t dwStates, bool bSet) {
+  if ((dwStates & FWL_WGTSTATE_Disabled) && bSet) {
+    m_pProperties->m_dwStates = FWL_WGTSTATE_Disabled;
+    return;
+  }
+  CFWL_Widget::SetStates(dwStates, bSet);
+}
+
+void CFWL_PushButton::Update() {
+  if (IsLocked())
+    return;
+  if (!m_pProperties->m_pThemeProvider)
+    m_pProperties->m_pThemeProvider = GetAvailableTheme();
+
+  UpdateTextOutStyles();
+  GetClientRect(m_rtClient);
+  m_rtCaption = m_rtClient;
+  FX_FLOAT* fcaption =
+      static_cast<FX_FLOAT*>(GetThemeCapacity(CFWL_WidgetCapacity::Margin));
+  m_rtCaption.Inflate(-*fcaption, -*fcaption);
+}
+
+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);
+  }
+  if (HasEdge()) {
+    DrawEdge(pGraphics, CFWL_Part::Edge, 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(&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;
+  else if (m_pProperties->m_dwStates & FWL_STATE_PSB_Default)
+    dwStates |= CFWL_PartState_Default;
+  return dwStates;
+}
+
+void CFWL_PushButton::UpdateTextOutStyles() {
+  switch (m_pProperties->m_dwStyleExes &
+          (FWL_STYLEEXT_PSB_HLayoutMask | FWL_STYLEEXT_PSB_VLayoutMask)) {
+    case FWL_STYLEEXT_PSB_Left | FWL_STYLEEXT_PSB_Top: {
+      m_iTTOAlign = FDE_TTOALIGNMENT_TopLeft;
+      break;
+    }
+    case FWL_STYLEEXT_PSB_Center | FWL_STYLEEXT_PSB_Top: {
+      m_iTTOAlign = FDE_TTOALIGNMENT_TopCenter;
+      break;
+    }
+    case FWL_STYLEEXT_PSB_Right | FWL_STYLEEXT_PSB_Top: {
+      m_iTTOAlign = FDE_TTOALIGNMENT_TopRight;
+      break;
+    }
+    case FWL_STYLEEXT_PSB_Left | FWL_STYLEEXT_PSB_VCenter: {
+      m_iTTOAlign = FDE_TTOALIGNMENT_CenterLeft;
+      break;
+    }
+    case FWL_STYLEEXT_PSB_Right | FWL_STYLEEXT_PSB_VCenter: {
+      m_iTTOAlign = FDE_TTOALIGNMENT_CenterRight;
+      break;
+    }
+    case FWL_STYLEEXT_PSB_Left | FWL_STYLEEXT_PSB_Bottom: {
+      m_iTTOAlign = FDE_TTOALIGNMENT_BottomLeft;
+      break;
+    }
+    case FWL_STYLEEXT_PSB_Center | FWL_STYLEEXT_PSB_Bottom: {
+      m_iTTOAlign = FDE_TTOALIGNMENT_BottomCenter;
+      break;
+    }
+    case FWL_STYLEEXT_PSB_Right | FWL_STYLEEXT_PSB_Bottom: {
+      m_iTTOAlign = FDE_TTOALIGNMENT_BottomRight;
+      break;
+    }
+    case FWL_STYLEEXT_PSB_Center | FWL_STYLEEXT_PSB_VCenter:
+    default: {
+      m_iTTOAlign = FDE_TTOALIGNMENT_Center;
+      break;
+    }
+  }
+  m_dwTTOStyles = FDE_TTOSTYLE_SingleLine;
+  if (m_pProperties->m_dwStyleExes & FWL_WGTSTYLE_RTLReading)
+    m_dwTTOStyles |= FDE_TTOSTYLE_RTL;
+}
+
+void CFWL_PushButton::OnProcessMessage(CFWL_Message* pMessage) {
+  if (!pMessage)
+    return;
+  if (!IsEnabled())
+    return;
+
+  CFWL_MessageType dwMsgCode = pMessage->GetClassID();
+  switch (dwMsgCode) {
+    case CFWL_MessageType::SetFocus:
+      OnFocusChanged(pMessage, true);
+      break;
+    case CFWL_MessageType::KillFocus:
+      OnFocusChanged(pMessage, false);
+      break;
+    case CFWL_MessageType::Mouse: {
+      CFWL_MsgMouse* pMsg = static_cast<CFWL_MsgMouse*>(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_MessageType::Key: {
+      CFWL_MsgKey* pKey = static_cast<CFWL_MsgKey*>(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;
+
+  Repaint(&m_rtClient);
+}
+
+void CFWL_PushButton::OnLButtonDown(CFWL_MsgMouse* 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;
+  Repaint(&m_rtClient);
+}
+
+void CFWL_PushButton::OnLButtonUp(CFWL_MsgMouse* 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_EvtClick wmClick;
+    wmClick.m_pSrcTarget = this;
+    DispatchEvent(&wmClick);
+  }
+  Repaint(&m_rtClient);
+}
+
+void CFWL_PushButton::OnMouseMove(CFWL_MsgMouse* 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)
+    Repaint(&m_rtClient);
+}
+
+void CFWL_PushButton::OnMouseLeave(CFWL_MsgMouse* pMsg) {
+  m_bBtnDown = false;
+  m_pProperties->m_dwStates &= ~FWL_STATE_PSB_Hovered;
+  m_pProperties->m_dwStates &= ~FWL_STATE_PSB_Pressed;
+  Repaint(&m_rtClient);
+}
+
+void CFWL_PushButton::OnKeyDown(CFWL_MsgKey* pMsg) {
+  if (pMsg->m_dwKeyCode == FWL_VKEY_Return) {
+    CFWL_EvtMouse wmMouse;
+    wmMouse.m_pSrcTarget = this;
+    wmMouse.m_dwCmd = FWL_MouseCommand::LeftButtonUp;
+    DispatchEvent(&wmMouse);
+    CFWL_EvtClick wmClick;
+    wmClick.m_pSrcTarget = this;
+    DispatchEvent(&wmClick);
+    return;
+  }
+  if (pMsg->m_dwKeyCode != FWL_VKEY_Tab)
+    return;
+
+  DispatchKeyEvent(pMsg);
+}