1 // Copyright 2014 PDFium Authors. All rights reserved.
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_caret.h"
8
9 #include <utility>
10
11 #include "third_party/base/ptr_util.h"
12 #include "xfa/fwl/cfwl_notedriver.h"
13 #include "xfa/fwl/cfwl_themebackground.h"
14 #include "xfa/fwl/cfwl_timerinfo.h"
15 #include "xfa/fwl/cfwl_widgetproperties.h"
16 #include "xfa/fwl/ifwl_themeprovider.h"
17
18 namespace {
19
20 const uint32_t kFrequency = 400;
21
22 } // namespace
23
CFWL_Caret(const CFWL_App * app,std::unique_ptr<CFWL_WidgetProperties> properties,CFWL_Widget * pOuter)24 CFWL_Caret::CFWL_Caret(const CFWL_App* app,
25 std::unique_ptr<CFWL_WidgetProperties> properties,
26 CFWL_Widget* pOuter)
27 : CFWL_Widget(app, std::move(properties), pOuter),
28 m_pTimer(new CFWL_Caret::Timer(this)),
29 m_pTimerInfo(nullptr) {
30 SetStates(FWL_STATE_CAT_HightLight);
31 }
32
~CFWL_Caret()33 CFWL_Caret::~CFWL_Caret() {
34 if (m_pTimerInfo) {
35 m_pTimerInfo->StopTimer();
36 m_pTimerInfo = nullptr;
37 }
38 }
39
GetClassID() const40 FWL_Type CFWL_Caret::GetClassID() const {
41 return FWL_Type::Caret;
42 }
43
Update()44 void CFWL_Caret::Update() {}
45
DrawWidget(CFX_Graphics * pGraphics,const CFX_Matrix * pMatrix)46 void CFWL_Caret::DrawWidget(CFX_Graphics* pGraphics,
47 const CFX_Matrix* pMatrix) {
48 if (!pGraphics)
49 return;
50 if (!m_pProperties->m_pThemeProvider)
51 m_pProperties->m_pThemeProvider = GetAvailableTheme();
52 if (!m_pProperties->m_pThemeProvider)
53 return;
54
55 DrawCaretBK(pGraphics, m_pProperties->m_pThemeProvider, pMatrix);
56 }
57
ShowCaret()58 void CFWL_Caret::ShowCaret() {
59 if (m_pTimerInfo)
60 m_pTimerInfo->StopTimer();
61 m_pTimerInfo = m_pTimer->StartTimer(kFrequency, true);
62 RemoveStates(FWL_WGTSTATE_Invisible);
63 }
64
HideCaret()65 void CFWL_Caret::HideCaret() {
66 if (m_pTimerInfo) {
67 m_pTimerInfo->StopTimer();
68 m_pTimerInfo = nullptr;
69 }
70 SetStates(FWL_WGTSTATE_Invisible);
71 }
72
DrawCaretBK(CFX_Graphics * pGraphics,IFWL_ThemeProvider * pTheme,const CFX_Matrix * pMatrix)73 void CFWL_Caret::DrawCaretBK(CFX_Graphics* pGraphics,
74 IFWL_ThemeProvider* pTheme,
75 const CFX_Matrix* pMatrix) {
76 if (!(m_pProperties->m_dwStates & FWL_STATE_CAT_HightLight))
77 return;
78
79 CFWL_ThemeBackground param;
80 param.m_pWidget = this;
81 param.m_pGraphics = pGraphics;
82 param.m_rtPart = CFX_RectF(0, 0, GetWidgetRect().Size());
83 param.m_iPart = CFWL_Part::Background;
84 param.m_dwStates = CFWL_PartState_HightLight;
85 if (pMatrix)
86 param.m_matrix.Concat(*pMatrix);
87 pTheme->DrawBackground(¶m);
88 }
89
OnProcessMessage(CFWL_Message * pMessage)90 void CFWL_Caret::OnProcessMessage(CFWL_Message* pMessage) {}
91
OnDrawWidget(CFX_Graphics * pGraphics,const CFX_Matrix * pMatrix)92 void CFWL_Caret::OnDrawWidget(CFX_Graphics* pGraphics,
93 const CFX_Matrix* pMatrix) {
94 DrawWidget(pGraphics, pMatrix);
95 }
96
Timer(CFWL_Caret * pCaret)97 CFWL_Caret::Timer::Timer(CFWL_Caret* pCaret) : CFWL_Timer(pCaret) {}
98
Run(CFWL_TimerInfo * pTimerInfo)99 void CFWL_Caret::Timer::Run(CFWL_TimerInfo* pTimerInfo) {
100 CFWL_Caret* pCaret = static_cast<CFWL_Caret*>(m_pWidget);
101 if (!(pCaret->GetStates() & FWL_STATE_CAT_HightLight))
102 pCaret->SetStates(FWL_STATE_CAT_HightLight);
103 else
104 pCaret->RemoveStates(FWL_STATE_CAT_HightLight);
105
106 CFX_RectF rt = pCaret->GetWidgetRect();
107 pCaret->RepaintRect(CFX_RectF(0, 0, rt.width + 1, rt.height));
108 }
109