彻底改版2.0

third/3rd_qxtglobalshortcut/qxtwindowsystem_mac.cpp

@@ -0,0 +1,158 @@
+#ifndef QXTWINDOWSYSTEM_MAC_CPP
+#define QXTWINDOWSYSTEM_MAC_CPP
+
+#include "qxtwindowsystem.h"
+#include "qxtwindowsystem_mac.h"
+
+// WId to return when error
+#define WINDOW_NOT_FOUND (WId)(0)
+
+WindowList qxt_getWindowsForPSN(ProcessSerialNumber *psn)
+{
+    static CGSConnection connection = _CGSDefaultConnection();
+
+    WindowList wlist;
+    if (!psn) return wlist;
+
+    CGError err((CGError)noErr);
+
+    // get onnection for given process psn
+    CGSConnection procConnection;
+    err = CGSGetConnectionIDForPSN(connection, psn, &procConnection);
+    if (err != noErr) return wlist;
+
+    /* get number of windows open by given process
+       in Mac OS X an application may have multiple windows, which generally
+       represent documents. It is also possible that there is no window even
+       though there is an application, it can simply not have any documents open. */
+
+    int windowCount(0);
+    err = CGSGetOnScreenWindowCount(connection, procConnection, &windowCount);
+    // if there are no windows open by this application, skip
+    if (err != noErr || windowCount == 0) return wlist;
+
+    // get list of windows
+    int windowList[windowCount];
+    int outCount(0);
+    err = CGSGetOnScreenWindowList(connection, procConnection, windowCount, windowList, &outCount);
+
+    if (err != noErr || outCount == 0) return wlist;
+
+    for (int i=0; i<outCount; ++i)
+    {
+        wlist += windowList[i];
+    }
+
+    return wlist;
+}
+
+
+WindowList QxtWindowSystem::windows()
+{
+    WindowList wlist;
+    ProcessSerialNumber psn = {0, kNoProcess};
+
+    // iterate over list of processes
+    OSErr err;
+    while ((err = ::GetNextProcess(&psn)) == noErr)
+    {
+        wlist += qxt_getWindowsForPSN(&psn);
+    }
+
+    return wlist;
+}
+
+WId QxtWindowSystem::activeWindow()
+{
+    ProcessSerialNumber psn;
+    OSErr err(noErr);
+    err = ::GetFrontProcess(&psn);
+    if (err != noErr) return WINDOW_NOT_FOUND;
+
+    // in Mac OS X, first window for given PSN is always the active one
+    WindowList wlist = qxt_getWindowsForPSN(&psn);
+
+    if (wlist.count() > 0)
+        return wlist.at(0);
+
+    return WINDOW_NOT_FOUND;
+}
+
+QString QxtWindowSystem::windowTitle(WId window)
+{
+    CGSValue windowTitle;
+    CGError err((CGError)noErr);
+    static CGSConnection connection = _CGSDefaultConnection();
+
+    // This code is so dirty I had to wash my hands after writing it.
+
+    // most of CoreGraphics private definitions ask for CGSValue as key but since
+    // converting strings to/from CGSValue was dropped in 10.5, I use CFString, which
+    // apparently also works.
+
+    // FIXME: Not public API function. Can't compile with OS X 10.8
+    // err = CGSGetWindowProperty(connection, window, (CGSValue)CFSTR("kCGSWindowTitle"), &windowTitle);
+    if (err != noErr) return QString();
+
+    // this is UTF8 encoded
+    return QCFString::toQString((CFStringRef)windowTitle);
+}
+
+QRect QxtWindowSystem::windowGeometry(WId window)
+{
+    CGRect rect;
+    static CGSConnection connection = _CGSDefaultConnection();
+
+    CGError err = CGSGetWindowBounds(connection, window, &rect);
+    if (err != noErr) return QRect();
+
+    return QRect(rect.origin.x, rect.origin.y, rect.size.width, rect.size.height);
+}
+
+/* This method is the only one that is not a complete hack
+   from Quartz Event Services
+   http://developer.apple.com/library/mac/#documentation/Carbon/Reference/QuartzEventServicesRef/Reference/reference.html
+*/
+uint QxtWindowSystem::idleTime()
+{
+    // CGEventSourceSecondsSinceLastEventType returns time in seconds as a double
+    // also has extremely long name
+    double idle = 1000 * ::CGEventSourceSecondsSinceLastEventType(kCGEventSourceStateCombinedSessionState, kCGAnyInputEventType);
+    return (uint)idle;
+}
+
+
+// these are copied from X11 implementation
+WId QxtWindowSystem::findWindow(const QString& title)
+{
+    WId result = 0;
+    WindowList list = windows();
+    foreach(const WId &wid, list)
+    {
+        if (windowTitle(wid) == title)
+        {
+            result = wid;
+            break;
+        }
+    }
+    return result;
+}
+
+WId QxtWindowSystem::windowAt(const QPoint& pos)
+{
+    WId result = 0;
+    WindowList list = windows();
+    for (int i = list.size() - 1; i >= 0; --i)
+    {
+        WId wid = list.at(i);
+        if (windowGeometry(wid).contains(pos))
+        {
+            result = wid;
+            break;
+        }
+    }
+    return result;
+}
+
+#endif // QXTWINDOWSYSTEM_MAC_CPP
+