v29.4-roots.3 · Commit 5: [PATCH 05/30] product: establish Roots identity and Qt experience
src/qt/wintaskbarprogress.cpp
Before: /dev/null · After: src/qt/wintaskbarprogress.cpp
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src/qt/wintaskbarprogress.cpp
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// Copyright (c) 2025 The Bitcoin Roots developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#include <qt/wintaskbarprogress.h>
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#include <QWidget>
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#include <QWindow>
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#include <windows.h>
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#include <shobjidl.h>
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WinTaskbarProgress::WinTaskbarProgress(QObject* parent)
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: QObject(parent),
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m_taskbar_button_created_msg(RegisterWindowMessageW(L"TaskbarButtonCreated"))
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{
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}
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WinTaskbarProgress::~WinTaskbarProgress()
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{
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releaseTaskbarButton();
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}
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void WinTaskbarProgress::setWindow(QWidget* widget)
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{
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QWindow* window = widget ? widget->windowHandle() : nullptr;
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if (!window || m_window == window) return;
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m_window = window;
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initTaskbarButton();
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updateProgress();
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}
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void WinTaskbarProgress::setValue(int value)
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{
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if (m_value == value) return;
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m_value = value;
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updateProgress();
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}
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void WinTaskbarProgress::setVisible(bool visible)
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{
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if (m_visible == visible) return;
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m_visible = visible;
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updateProgress();
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}
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void WinTaskbarProgress::updateProgress()
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{
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if (!m_taskbar_button || !m_window) return;
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const HWND hwnd{reinterpret_cast<HWND>(m_window->winId())};
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if (m_visible) {
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m_taskbar_button->SetProgressValue(hwnd, m_value, 100);
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m_taskbar_button->SetProgressState(hwnd, TBPF_NORMAL);
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} else {
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m_taskbar_button->SetProgressState(hwnd, TBPF_NOPROGRESS);
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}
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}
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void WinTaskbarProgress::initTaskbarButton()
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{
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if (m_taskbar_button || !m_window || !m_taskbar_ready) return;
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HRESULT hr = CoCreateInstance(CLSID_TaskbarList, nullptr, CLSCTX_INPROC_SERVER,
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IID_PPV_ARGS(&m_taskbar_button));
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if (SUCCEEDED(hr)) {
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hr = m_taskbar_button->HrInit();
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if (FAILED(hr)) {
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m_taskbar_button->Release();
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m_taskbar_button = nullptr;
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}
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}
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}
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void WinTaskbarProgress::releaseTaskbarButton()
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{
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if (m_taskbar_button) {
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m_taskbar_button->Release();
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m_taskbar_button = nullptr;
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}
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}
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#if (QT_VERSION >= QT_VERSION_CHECK(6, 0, 0))
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bool WinTaskbarProgress::nativeEventFilter(const QByteArray& event_type, void* message, qintptr* result)
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#else
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bool WinTaskbarProgress::nativeEventFilter(const QByteArray& event_type, void* message, long* result)
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#endif
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{
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Q_UNUSED(result);
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if (event_type != "windows_generic_MSG" && event_type != "windows_dispatcher_MSG") return false;
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const MSG* msg{static_cast<MSG*>(message)};
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if (m_taskbar_button_created_msg != 0 && msg->message == m_taskbar_button_created_msg) {
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m_taskbar_ready = true;
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if (m_window) {
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initTaskbarButton();
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updateProgress();
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}
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}
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return false;
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}
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