1 // Copyright 2014 The PDFium Authors
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6
7 #include "xfa/fwl/cfwl_pushbutton.h"
8
9 #include "xfa/fde/cfde_textout.h"
10 #include "xfa/fwl/cfwl_event.h"
11 #include "xfa/fwl/cfwl_eventmouse.h"
12 #include "xfa/fwl/cfwl_messagekey.h"
13 #include "xfa/fwl/cfwl_messagemouse.h"
14 #include "xfa/fwl/cfwl_notedriver.h"
15 #include "xfa/fwl/cfwl_themebackground.h"
16 #include "xfa/fwl/cfwl_themetext.h"
17 #include "xfa/fwl/fwl_widgetdef.h"
18 #include "xfa/fwl/ifwl_themeprovider.h"
19
CFWL_PushButton(CFWL_App * app)20 CFWL_PushButton::CFWL_PushButton(CFWL_App* app)
21 : CFWL_Widget(app, Properties(), nullptr) {}
22
23 CFWL_PushButton::~CFWL_PushButton() = default;
24
GetClassID() const25 FWL_Type CFWL_PushButton::GetClassID() const {
26 return FWL_Type::PushButton;
27 }
28
SetStates(uint32_t dwStates)29 void CFWL_PushButton::SetStates(uint32_t dwStates) {
30 if (dwStates & FWL_STATE_WGT_Disabled) {
31 m_Properties.m_dwStates = FWL_STATE_WGT_Disabled;
32 return;
33 }
34 CFWL_Widget::SetStates(dwStates);
35 }
36
Update()37 void CFWL_PushButton::Update() {
38 if (IsLocked())
39 return;
40
41 m_ClientRect = GetClientRect();
42 m_CaptionRect = m_ClientRect;
43 }
44
DrawWidget(CFGAS_GEGraphics * pGraphics,const CFX_Matrix & matrix)45 void CFWL_PushButton::DrawWidget(CFGAS_GEGraphics* pGraphics,
46 const CFX_Matrix& matrix) {
47 if (!pGraphics)
48 return;
49
50 if (HasBorder())
51 DrawBorder(pGraphics, CFWL_ThemePart::Part::kBorder, matrix);
52
53 DrawBkground(pGraphics, matrix);
54 }
55
DrawBkground(CFGAS_GEGraphics * pGraphics,const CFX_Matrix & matrix)56 void CFWL_PushButton::DrawBkground(CFGAS_GEGraphics* pGraphics,
57 const CFX_Matrix& matrix) {
58 CFWL_ThemeBackground param(CFWL_ThemePart::Part::kBackground, this,
59 pGraphics);
60 param.m_dwStates = GetPartStates();
61 param.m_matrix = matrix;
62 param.m_PartRect = m_ClientRect;
63 if (m_Properties.m_dwStates & FWL_STATE_WGT_Focused)
64 param.m_pRtData = &m_CaptionRect;
65 GetThemeProvider()->DrawBackground(param);
66 }
67
GetPartStates()68 Mask<CFWL_PartState> CFWL_PushButton::GetPartStates() {
69 Mask<CFWL_PartState> dwStates = CFWL_PartState::kNormal;
70 if (m_Properties.m_dwStates & FWL_STATE_WGT_Focused)
71 dwStates |= CFWL_PartState::kFocused;
72 if (m_Properties.m_dwStates & FWL_STATE_WGT_Disabled)
73 dwStates = CFWL_PartState::kDisabled;
74 else if (m_Properties.m_dwStates & FWL_STATE_PSB_Pressed)
75 dwStates |= CFWL_PartState::kPressed;
76 else if (m_Properties.m_dwStates & FWL_STATE_PSB_Hovered)
77 dwStates |= CFWL_PartState::kHovered;
78 return dwStates;
79 }
80
OnProcessMessage(CFWL_Message * pMessage)81 void CFWL_PushButton::OnProcessMessage(CFWL_Message* pMessage) {
82 if (!IsEnabled())
83 return;
84
85 switch (pMessage->GetType()) {
86 case CFWL_Message::Type::kSetFocus:
87 OnFocusGained();
88 break;
89 case CFWL_Message::Type::kKillFocus:
90 OnFocusLost();
91 break;
92 case CFWL_Message::Type::kMouse: {
93 CFWL_MessageMouse* pMsg = static_cast<CFWL_MessageMouse*>(pMessage);
94 switch (pMsg->m_dwCmd) {
95 case CFWL_MessageMouse::MouseCommand::kLeftButtonDown:
96 OnLButtonDown(pMsg);
97 break;
98 case CFWL_MessageMouse::MouseCommand::kLeftButtonUp:
99 OnLButtonUp(pMsg);
100 break;
101 case CFWL_MessageMouse::MouseCommand::kMove:
102 OnMouseMove(pMsg);
103 break;
104 case CFWL_MessageMouse::MouseCommand::kLeave:
105 OnMouseLeave(pMsg);
106 break;
107 default:
108 break;
109 }
110 break;
111 }
112 case CFWL_Message::Type::kKey: {
113 CFWL_MessageKey* pKey = static_cast<CFWL_MessageKey*>(pMessage);
114 if (pKey->m_dwCmd == CFWL_MessageKey::KeyCommand::kKeyDown)
115 OnKeyDown(pKey);
116 break;
117 }
118 default:
119 break;
120 }
121 // Dst target could be |this|, continue only if not destroyed by above.
122 if (pMessage->GetDstTarget())
123 CFWL_Widget::OnProcessMessage(pMessage);
124 }
125
OnDrawWidget(CFGAS_GEGraphics * pGraphics,const CFX_Matrix & matrix)126 void CFWL_PushButton::OnDrawWidget(CFGAS_GEGraphics* pGraphics,
127 const CFX_Matrix& matrix) {
128 DrawWidget(pGraphics, matrix);
129 }
130
OnFocusGained()131 void CFWL_PushButton::OnFocusGained() {
132 m_Properties.m_dwStates |= FWL_STATE_WGT_Focused;
133 RepaintRect(m_ClientRect);
134 }
135
OnFocusLost()136 void CFWL_PushButton::OnFocusLost() {
137 m_Properties.m_dwStates &= ~FWL_STATE_WGT_Focused;
138 RepaintRect(m_ClientRect);
139 }
140
OnLButtonDown(CFWL_MessageMouse * pMsg)141 void CFWL_PushButton::OnLButtonDown(CFWL_MessageMouse* pMsg) {
142 m_bBtnDown = true;
143 m_Properties.m_dwStates |= FWL_STATE_PSB_Hovered;
144 m_Properties.m_dwStates |= FWL_STATE_PSB_Pressed;
145 RepaintRect(m_ClientRect);
146 }
147
OnLButtonUp(CFWL_MessageMouse * pMsg)148 void CFWL_PushButton::OnLButtonUp(CFWL_MessageMouse* pMsg) {
149 m_bBtnDown = false;
150 if (m_ClientRect.Contains(pMsg->m_pos)) {
151 m_Properties.m_dwStates &= ~FWL_STATE_PSB_Pressed;
152 m_Properties.m_dwStates |= FWL_STATE_PSB_Hovered;
153 } else {
154 m_Properties.m_dwStates &= ~FWL_STATE_PSB_Hovered;
155 m_Properties.m_dwStates &= ~FWL_STATE_PSB_Pressed;
156 }
157 if (m_ClientRect.Contains(pMsg->m_pos)) {
158 CFWL_Event wmClick(CFWL_Event::Type::Click, this);
159 DispatchEvent(&wmClick);
160 }
161 RepaintRect(m_ClientRect);
162 }
163
OnMouseMove(CFWL_MessageMouse * pMsg)164 void CFWL_PushButton::OnMouseMove(CFWL_MessageMouse* pMsg) {
165 bool bRepaint = false;
166 if (m_bBtnDown) {
167 if (m_ClientRect.Contains(pMsg->m_pos)) {
168 if ((m_Properties.m_dwStates & FWL_STATE_PSB_Pressed) == 0) {
169 m_Properties.m_dwStates |= FWL_STATE_PSB_Pressed;
170 bRepaint = true;
171 }
172 if (m_Properties.m_dwStates & FWL_STATE_PSB_Hovered) {
173 m_Properties.m_dwStates &= ~FWL_STATE_PSB_Hovered;
174 bRepaint = true;
175 }
176 } else {
177 if (m_Properties.m_dwStates & FWL_STATE_PSB_Pressed) {
178 m_Properties.m_dwStates &= ~FWL_STATE_PSB_Pressed;
179 bRepaint = true;
180 }
181 if ((m_Properties.m_dwStates & FWL_STATE_PSB_Hovered) == 0) {
182 m_Properties.m_dwStates |= FWL_STATE_PSB_Hovered;
183 bRepaint = true;
184 }
185 }
186 } else {
187 if (!m_ClientRect.Contains(pMsg->m_pos))
188 return;
189 if ((m_Properties.m_dwStates & FWL_STATE_PSB_Hovered) == 0) {
190 m_Properties.m_dwStates |= FWL_STATE_PSB_Hovered;
191 bRepaint = true;
192 }
193 }
194 if (bRepaint)
195 RepaintRect(m_ClientRect);
196 }
197
OnMouseLeave(CFWL_MessageMouse * pMsg)198 void CFWL_PushButton::OnMouseLeave(CFWL_MessageMouse* pMsg) {
199 m_bBtnDown = false;
200 m_Properties.m_dwStates &= ~FWL_STATE_PSB_Hovered;
201 m_Properties.m_dwStates &= ~FWL_STATE_PSB_Pressed;
202 RepaintRect(m_ClientRect);
203 }
204
OnKeyDown(CFWL_MessageKey * pMsg)205 void CFWL_PushButton::OnKeyDown(CFWL_MessageKey* pMsg) {
206 if (pMsg->m_dwKeyCodeOrChar != XFA_FWL_VKEY_Return)
207 return;
208
209 CFWL_EventMouse wmMouse(this, nullptr,
210 CFWL_MessageMouse::MouseCommand::kLeftButtonUp);
211 DispatchEvent(&wmMouse);
212 if (!wmMouse.GetSrcTarget())
213 return;
214
215 CFWL_Event wmClick(CFWL_Event::Type::Click, this);
216 DispatchEvent(&wmClick);
217 }
218