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v29.4-roots.2 · Commit 5: [PATCH 05/21] 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 ADDED
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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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+
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+ #include <qt/wintaskbarprogress.h>
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+
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+ #include <QWidget>
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+ #include <QWindow>
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+
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+ #include <windows.h>
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+ #include <shobjidl.h>
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+
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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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+
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+ WinTaskbarProgress::~WinTaskbarProgress()
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+ {
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+ releaseTaskbarButton();
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+ }
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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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+ }