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99 lines
2.7 KiB
99 lines
2.7 KiB
// Copyright 2014 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#include "xfa/fwl/cfwl_caret.h"
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#include <utility>
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#include "third_party/base/ptr_util.h"
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#include "xfa/fwl/cfwl_app.h"
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#include "xfa/fwl/cfwl_notedriver.h"
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#include "xfa/fwl/cfwl_themebackground.h"
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#include "xfa/fwl/cfwl_widgetproperties.h"
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#include "xfa/fwl/ifwl_themeprovider.h"
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namespace {
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const uint32_t kBlinkPeriodMs = 600;
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constexpr int kStateHighlight = (1 << 0);
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} // namespace
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CFWL_Caret::CFWL_Caret(const CFWL_App* app,
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std::unique_ptr<CFWL_WidgetProperties> properties,
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CFWL_Widget* pOuter)
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: CFWL_Widget(app, std::move(properties), pOuter) {
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SetStates(kStateHighlight);
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}
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CFWL_Caret::~CFWL_Caret() = default;
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FWL_Type CFWL_Caret::GetClassID() const {
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return FWL_Type::Caret;
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}
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void CFWL_Caret::Update() {}
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void CFWL_Caret::DrawWidget(CXFA_Graphics* pGraphics,
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const CFX_Matrix& matrix) {
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if (!pGraphics)
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return;
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if (!m_pProperties->m_pThemeProvider)
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m_pProperties->m_pThemeProvider = GetAvailableTheme();
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if (!m_pProperties->m_pThemeProvider)
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return;
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DrawCaretBK(pGraphics, m_pProperties->m_pThemeProvider.Get(), &matrix);
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}
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void CFWL_Caret::ShowCaret() {
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m_pTimer = pdfium::MakeUnique<CFX_Timer>(
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GetOwnerApp()->GetAdapterNative()->GetTimerHandler(), this,
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kBlinkPeriodMs);
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RemoveStates(FWL_WGTSTATE_Invisible);
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SetStates(kStateHighlight);
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}
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void CFWL_Caret::HideCaret() {
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m_pTimer.reset();
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SetStates(FWL_WGTSTATE_Invisible);
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}
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void CFWL_Caret::DrawCaretBK(CXFA_Graphics* pGraphics,
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IFWL_ThemeProvider* pTheme,
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const CFX_Matrix* pMatrix) {
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if (!(m_pProperties->m_dwStates & kStateHighlight))
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return;
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CFWL_ThemeBackground param;
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param.m_pWidget = this;
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param.m_pGraphics = pGraphics;
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param.m_rtPart = CFX_RectF(0, 0, GetWidgetRect().Size());
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param.m_iPart = CFWL_Part::Background;
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param.m_dwStates = CFWL_PartState_HightLight;
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if (pMatrix)
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param.m_matrix.Concat(*pMatrix);
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pTheme->DrawBackground(param);
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}
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void CFWL_Caret::OnProcessMessage(CFWL_Message* pMessage) {}
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void CFWL_Caret::OnDrawWidget(CXFA_Graphics* pGraphics,
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const CFX_Matrix& matrix) {
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DrawWidget(pGraphics, matrix);
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}
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void CFWL_Caret::OnTimerFired() {
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if (!(GetStates() & kStateHighlight))
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SetStates(kStateHighlight);
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else
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RemoveStates(kStateHighlight);
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CFX_RectF rt = GetWidgetRect();
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RepaintRect(CFX_RectF(0, 0, rt.width + 1, rt.height));
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}
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