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_caret.h"
8
9 #include <utility>
10
11 #include "xfa/fwl/cfwl_app.h"
12 #include "xfa/fwl/cfwl_notedriver.h"
13 #include "xfa/fwl/cfwl_themebackground.h"
14 #include "xfa/fwl/ifwl_themeprovider.h"
15
16 namespace {
17
18 const uint32_t kBlinkPeriodMs = 600;
19
20 constexpr int kStateHighlight = (1 << 0);
21
22 } // namespace
23
CFWL_Caret(CFWL_App * app,const Properties & properties,CFWL_Widget * pOuter)24 CFWL_Caret::CFWL_Caret(CFWL_App* app,
25 const Properties& properties,
26 CFWL_Widget* pOuter)
27 : CFWL_Widget(app, properties, pOuter) {
28 SetStates(kStateHighlight);
29 }
30
31 CFWL_Caret::~CFWL_Caret() = default;
32
GetClassID() const33 FWL_Type CFWL_Caret::GetClassID() const {
34 return FWL_Type::Caret;
35 }
36
Update()37 void CFWL_Caret::Update() {}
38
DrawWidget(CFGAS_GEGraphics * pGraphics,const CFX_Matrix & matrix)39 void CFWL_Caret::DrawWidget(CFGAS_GEGraphics* pGraphics,
40 const CFX_Matrix& matrix) {
41 if (!pGraphics)
42 return;
43
44 DrawCaretBK(pGraphics, matrix);
45 }
46
ShowCaret()47 void CFWL_Caret::ShowCaret() {
48 m_pTimer = std::make_unique<CFX_Timer>(GetFWLApp()->GetTimerHandler(), this,
49 kBlinkPeriodMs);
50 RemoveStates(FWL_STATE_WGT_Invisible);
51 SetStates(kStateHighlight);
52 }
53
HideCaret()54 void CFWL_Caret::HideCaret() {
55 m_pTimer.reset();
56 SetStates(FWL_STATE_WGT_Invisible);
57 }
58
DrawCaretBK(CFGAS_GEGraphics * pGraphics,const CFX_Matrix & mtMatrix)59 void CFWL_Caret::DrawCaretBK(CFGAS_GEGraphics* pGraphics,
60 const CFX_Matrix& mtMatrix) {
61 if (!(m_Properties.m_dwStates & kStateHighlight))
62 return;
63
64 CFWL_ThemeBackground param(CFWL_ThemePart::Part::kBackground, this,
65 pGraphics);
66 param.m_PartRect = CFX_RectF(0, 0, GetWidgetRect().Size());
67 param.m_dwStates = CFWL_PartState::kHightLight;
68 param.m_matrix = mtMatrix;
69 GetThemeProvider()->DrawBackground(param);
70 }
71
OnProcessMessage(CFWL_Message * pMessage)72 void CFWL_Caret::OnProcessMessage(CFWL_Message* pMessage) {}
73
OnDrawWidget(CFGAS_GEGraphics * pGraphics,const CFX_Matrix & matrix)74 void CFWL_Caret::OnDrawWidget(CFGAS_GEGraphics* pGraphics,
75 const CFX_Matrix& matrix) {
76 DrawWidget(pGraphics, matrix);
77 }
78
OnTimerFired()79 void CFWL_Caret::OnTimerFired() {
80 if (!(GetStates() & kStateHighlight))
81 SetStates(kStateHighlight);
82 else
83 RemoveStates(kStateHighlight);
84
85 CFX_RectF rt = GetWidgetRect();
86 RepaintRect(CFX_RectF(0, 0, rt.width + 1, rt.height));
87 }
88