Clementine-audio-player-Mac.../src/ui/windows7thumbbar.cpp

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/* This file is part of Clementine.
Copyright 2010, David Sansome <me@davidsansome.com>
Clementine is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Clementine is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Clementine. If not, see <http://www.gnu.org/licenses/>.
*/
#include "windows7thumbbar.h"
#include <QAction>
#include <QtDebug>
#ifdef Q_OS_WIN32
# define _WIN32_WINNT 0x0600
# include <windows.h>
# include <commctrl.h>
# include <shobjidl.h>
#endif // Q_OS_WIN32
const int Windows7ThumbBar::kIconSize = 16;
const int Windows7ThumbBar::kMaxButtonCount = 7;
Windows7ThumbBar::Windows7ThumbBar(QWidget* widget)
: QObject(widget),
widget_(widget),
button_created_message_id_(0),
taskbar_list_(NULL)
{
}
void Windows7ThumbBar::SetActions(const QList<QAction*>& actions) {
#ifdef Q_OS_WIN32
Q_ASSERT(actions.count() <= kMaxButtonCount);
actions_ = actions;
foreach (QAction* action, actions) {
if (action) {
connect(action, SIGNAL(changed()), SLOT(ActionChanged()));
}
}
#endif // Q_OS_WIN32
}
#ifdef Q_OS_WIN32
static void SetupButton(const QAction* action, THUMBBUTTON* button) {
if (action) {
button->hIcon = action->icon().pixmap(Windows7ThumbBar::kIconSize).toWinHICON();
button->dwFlags = action->isEnabled() ? THBF_ENABLED : THBF_DISABLED;
action->text().toWCharArray(button->szTip);
button->szTip[action->text().count()] = '\0';
if (!action->isVisible()) {
button->dwFlags = THUMBBUTTONFLAGS(button->dwFlags | THBF_HIDDEN);
}
} else {
button->hIcon = 0;
button->szTip[0] = '\0';
button->dwFlags = THBF_NOBACKGROUND;
}
}
#endif // Q_OS_WIN32
void Windows7ThumbBar::HandleWinEvent(MSG* msg) {
#ifdef Q_OS_WIN32
if (button_created_message_id_ == 0) {
// Compute the value for the TaskbarButtonCreated message
button_created_message_id_ = RegisterWindowMessage("TaskbarButtonCreated");
}
if (msg->message == button_created_message_id_) {
if (!taskbar_list_) {
// Create the taskbar list for the first time
if (CoCreateInstance(CLSID_ITaskbarList, NULL, CLSCTX_ALL,
IID_ITaskbarList3, (void**) &taskbar_list_)) {
qWarning() << "Error creating the ITaskbarList3 interface";
return;
}
ITaskbarList3* taskbar_list = reinterpret_cast<ITaskbarList3*>(taskbar_list_);
if (taskbar_list->HrInit()) {
taskbar_list->Release();
taskbar_list_ = NULL;
return;
}
// Add the buttons
THUMBBUTTON buttons[kMaxButtonCount];
for (int i=0 ; i<actions_.count() ; ++i) {
const QAction* action = actions_[i];
THUMBBUTTON* button = &buttons[i];
button->dwMask = THUMBBUTTONMASK(THB_ICON | THB_TOOLTIP | THB_FLAGS);
button->iId = i;
SetupButton(action, button);
}
taskbar_list->ThumbBarAddButtons(widget_->winId(), actions_.count(), buttons);
}
} else if (msg->message == WM_COMMAND) {
const int button_id = LOWORD(msg->wParam);
if (button_id >= 0 && button_id < actions_.count()) {
actions_[button_id]->activate(QAction::Trigger);
}
}
#endif // Q_OS_WIN32
}
void Windows7ThumbBar::ActionChanged() {
#ifdef Q_OS_WIN32
if (!taskbar_list_)
return;
ITaskbarList3* taskbar_list = reinterpret_cast<ITaskbarList3*>(taskbar_list_);
THUMBBUTTON buttons[kMaxButtonCount];
for (int i=0 ; i<actions_.count() ; ++i) {
const QAction* action = actions_[i];
THUMBBUTTON* button = &buttons[i];
button->dwMask = THUMBBUTTONMASK(THB_ICON | THB_TOOLTIP | THB_FLAGS);
button->iId = i;
SetupButton(action, button);
}
taskbar_list->ThumbBarUpdateButtons(widget_->winId(), actions_.count(), buttons);
#endif // Q_OS_WIN32
}