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
20 namespace pdfium {
21
CFWL_PushButton(CFWL_App * app)22 CFWL_PushButton::CFWL_PushButton(CFWL_App* app)
23 : CFWL_Widget(app, Properties(), nullptr) {}
24
25 CFWL_PushButton::~CFWL_PushButton() = default;
26
GetClassID() const27 FWL_Type CFWL_PushButton::GetClassID() const {
28 return FWL_Type::PushButton;
29 }
30
SetStates(uint32_t dwStates)31 void CFWL_PushButton::SetStates(uint32_t dwStates) {
32 if (dwStates & FWL_STATE_WGT_Disabled) {
33 m_Properties.m_dwStates = FWL_STATE_WGT_Disabled;
34 return;
35 }
36 CFWL_Widget::SetStates(dwStates);
37 }
38
Update()39 void CFWL_PushButton::Update() {
40 if (IsLocked())
41 return;
42
43 m_ClientRect = GetClientRect();
44 m_CaptionRect = m_ClientRect;
45 }
46
DrawWidget(CFGAS_GEGraphics * pGraphics,const CFX_Matrix & matrix)47 void CFWL_PushButton::DrawWidget(CFGAS_GEGraphics* pGraphics,
48 const CFX_Matrix& matrix) {
49 if (!pGraphics)
50 return;
51
52 if (HasBorder())
53 DrawBorder(pGraphics, CFWL_ThemePart::Part::kBorder, matrix);
54
55 DrawBkground(pGraphics, matrix);
56 }
57
DrawBkground(CFGAS_GEGraphics * pGraphics,const CFX_Matrix & matrix)58 void CFWL_PushButton::DrawBkground(CFGAS_GEGraphics* pGraphics,
59 const CFX_Matrix& matrix) {
60 CFWL_ThemeBackground param(CFWL_ThemePart::Part::kBackground, this,
61 pGraphics);
62 param.m_dwStates = GetPartStates();
63 param.m_matrix = matrix;
64 param.m_PartRect = m_ClientRect;
65 if (m_Properties.m_dwStates & FWL_STATE_WGT_Focused)
66 param.m_pRtData = &m_CaptionRect;
67 GetThemeProvider()->DrawBackground(param);
68 }
69
GetPartStates()70 Mask<CFWL_PartState> CFWL_PushButton::GetPartStates() {
71 Mask<CFWL_PartState> dwStates = CFWL_PartState::kNormal;
72 if (m_Properties.m_dwStates & FWL_STATE_WGT_Focused)
73 dwStates |= CFWL_PartState::kFocused;
74 if (m_Properties.m_dwStates & FWL_STATE_WGT_Disabled)
75 dwStates = CFWL_PartState::kDisabled;
76 else if (m_Properties.m_dwStates & FWL_STATE_PSB_Pressed)
77 dwStates |= CFWL_PartState::kPressed;
78 else if (m_Properties.m_dwStates & FWL_STATE_PSB_Hovered)
79 dwStates |= CFWL_PartState::kHovered;
80 return dwStates;
81 }
82
OnProcessMessage(CFWL_Message * pMessage)83 void CFWL_PushButton::OnProcessMessage(CFWL_Message* pMessage) {
84 if (!IsEnabled())
85 return;
86
87 switch (pMessage->GetType()) {
88 case CFWL_Message::Type::kSetFocus:
89 OnFocusGained();
90 break;
91 case CFWL_Message::Type::kKillFocus:
92 OnFocusLost();
93 break;
94 case CFWL_Message::Type::kMouse: {
95 CFWL_MessageMouse* pMsg = static_cast<CFWL_MessageMouse*>(pMessage);
96 switch (pMsg->m_dwCmd) {
97 case CFWL_MessageMouse::MouseCommand::kLeftButtonDown:
98 OnLButtonDown(pMsg);
99 break;
100 case CFWL_MessageMouse::MouseCommand::kLeftButtonUp:
101 OnLButtonUp(pMsg);
102 break;
103 case CFWL_MessageMouse::MouseCommand::kMove:
104 OnMouseMove(pMsg);
105 break;
106 case CFWL_MessageMouse::MouseCommand::kLeave:
107 OnMouseLeave(pMsg);
108 break;
109 default:
110 break;
111 }
112 break;
113 }
114 case CFWL_Message::Type::kKey: {
115 CFWL_MessageKey* pKey = static_cast<CFWL_MessageKey*>(pMessage);
116 if (pKey->m_dwCmd == CFWL_MessageKey::KeyCommand::kKeyDown)
117 OnKeyDown(pKey);
118 break;
119 }
120 default:
121 break;
122 }
123 // Dst target could be |this|, continue only if not destroyed by above.
124 if (pMessage->GetDstTarget())
125 CFWL_Widget::OnProcessMessage(pMessage);
126 }
127
OnDrawWidget(CFGAS_GEGraphics * pGraphics,const CFX_Matrix & matrix)128 void CFWL_PushButton::OnDrawWidget(CFGAS_GEGraphics* pGraphics,
129 const CFX_Matrix& matrix) {
130 DrawWidget(pGraphics, matrix);
131 }
132
OnFocusGained()133 void CFWL_PushButton::OnFocusGained() {
134 m_Properties.m_dwStates |= FWL_STATE_WGT_Focused;
135 RepaintRect(m_ClientRect);
136 }
137
OnFocusLost()138 void CFWL_PushButton::OnFocusLost() {
139 m_Properties.m_dwStates &= ~FWL_STATE_WGT_Focused;
140 RepaintRect(m_ClientRect);
141 }
142
OnLButtonDown(CFWL_MessageMouse * pMsg)143 void CFWL_PushButton::OnLButtonDown(CFWL_MessageMouse* pMsg) {
144 m_bBtnDown = true;
145 m_Properties.m_dwStates |= FWL_STATE_PSB_Hovered;
146 m_Properties.m_dwStates |= FWL_STATE_PSB_Pressed;
147 RepaintRect(m_ClientRect);
148 }
149
OnLButtonUp(CFWL_MessageMouse * pMsg)150 void CFWL_PushButton::OnLButtonUp(CFWL_MessageMouse* pMsg) {
151 m_bBtnDown = false;
152 if (m_ClientRect.Contains(pMsg->m_pos)) {
153 m_Properties.m_dwStates &= ~FWL_STATE_PSB_Pressed;
154 m_Properties.m_dwStates |= FWL_STATE_PSB_Hovered;
155 } else {
156 m_Properties.m_dwStates &= ~FWL_STATE_PSB_Hovered;
157 m_Properties.m_dwStates &= ~FWL_STATE_PSB_Pressed;
158 }
159 if (m_ClientRect.Contains(pMsg->m_pos)) {
160 CFWL_Event wmClick(CFWL_Event::Type::Click, this);
161 DispatchEvent(&wmClick);
162 }
163 RepaintRect(m_ClientRect);
164 }
165
OnMouseMove(CFWL_MessageMouse * pMsg)166 void CFWL_PushButton::OnMouseMove(CFWL_MessageMouse* pMsg) {
167 bool bRepaint = false;
168 if (m_bBtnDown) {
169 if (m_ClientRect.Contains(pMsg->m_pos)) {
170 if ((m_Properties.m_dwStates & FWL_STATE_PSB_Pressed) == 0) {
171 m_Properties.m_dwStates |= FWL_STATE_PSB_Pressed;
172 bRepaint = true;
173 }
174 if (m_Properties.m_dwStates & FWL_STATE_PSB_Hovered) {
175 m_Properties.m_dwStates &= ~FWL_STATE_PSB_Hovered;
176 bRepaint = true;
177 }
178 } else {
179 if (m_Properties.m_dwStates & FWL_STATE_PSB_Pressed) {
180 m_Properties.m_dwStates &= ~FWL_STATE_PSB_Pressed;
181 bRepaint = true;
182 }
183 if ((m_Properties.m_dwStates & FWL_STATE_PSB_Hovered) == 0) {
184 m_Properties.m_dwStates |= FWL_STATE_PSB_Hovered;
185 bRepaint = true;
186 }
187 }
188 } else {
189 if (!m_ClientRect.Contains(pMsg->m_pos))
190 return;
191 if ((m_Properties.m_dwStates & FWL_STATE_PSB_Hovered) == 0) {
192 m_Properties.m_dwStates |= FWL_STATE_PSB_Hovered;
193 bRepaint = true;
194 }
195 }
196 if (bRepaint)
197 RepaintRect(m_ClientRect);
198 }
199
OnMouseLeave(CFWL_MessageMouse * pMsg)200 void CFWL_PushButton::OnMouseLeave(CFWL_MessageMouse* pMsg) {
201 m_bBtnDown = false;
202 m_Properties.m_dwStates &= ~FWL_STATE_PSB_Hovered;
203 m_Properties.m_dwStates &= ~FWL_STATE_PSB_Pressed;
204 RepaintRect(m_ClientRect);
205 }
206
OnKeyDown(CFWL_MessageKey * pMsg)207 void CFWL_PushButton::OnKeyDown(CFWL_MessageKey* pMsg) {
208 if (pMsg->m_dwKeyCodeOrChar != XFA_FWL_VKEY_Return)
209 return;
210
211 CFWL_EventMouse wmMouse(this, nullptr,
212 CFWL_MessageMouse::MouseCommand::kLeftButtonUp);
213 DispatchEvent(&wmMouse);
214 if (!wmMouse.GetSrcTarget())
215 return;
216
217 CFWL_Event wmClick(CFWL_Event::Type::Click, this);
218 DispatchEvent(&wmClick);
219 }
220
221 } // namespace pdfium
222