1 files changed, 78 insertions, 0 deletions
diff --git a/Source/WebKit/chromium/src/x11/WebScreenInfoFactory.cpp b/Source/WebKit/chromium/src/x11/WebScreenInfoFactory.cpp
new file mode 100644
index 000000000..b6afa458b
--- /dev/null
+++ b/Source/WebKit/chromium/src/x11/WebScreenInfoFactory.cpp
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2011 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "WebScreenInfoFactory.h"
+
+#include "WebScreenInfo.h"
+
+#include <X11/Xlib.h>
+#include <stdio.h>
+
+namespace WebKit {
+
+// FIXME: Take an X window and use XRandR to find the dimensions of the monitor
+// that it's on (probably using XRRGetScreenInfo() and XRRConfigSizes() from
+// X11/extensions/Xrandr.h). GDK provides a gdk_screen_get_monitor_geometry()
+// function, but it appears to return stale data after the screen is resized.
+WebScreenInfo WebScreenInfoFactory::screenInfo(Display* display, int screenNumber)
+{
+    const float inchesPerMillimeter = 25.4;
+    // XDisplayWidth() and XDisplayHeight() return cached values. To ensure that
+    // we return the correct dimensions after the screen is resized, query the
+    // root window's geometry each time.
+    Window root = RootWindow(display, screenNumber);
+    Window rootRet;
+    int x, y;
+    unsigned int width, height, border, depth;
+    XGetGeometry(
+        display, root, &rootRet, &x, &y, &width, &height, &border, &depth);
+
+    WebScreenInfo results;
+    int displayWidth = DisplayWidth(display, screenNumber);
+    int displayWidthInMillimeters = DisplayWidthMM(display, screenNumber);
+    results.horizontalDPI = static_cast<int>(inchesPerMillimeter * displayWidth / displayWidthInMillimeters);
+
+    int displayHeight = DisplayHeight(display, screenNumber);
+    int displayHeightInMillimeters = DisplayHeightMM(display, screenNumber);
+    results.verticalDPI = static_cast<int>(inchesPerMillimeter * displayHeight / displayHeightInMillimeters);
+
+    // FIXME: Not all screens use 8bpp.
+    results.depthPerComponent = 8;
+    results.depth = depth;
+    results.isMonochrome = depth == 1;
+    results.rect = WebRect(x, y, width, height);
+    // FIXME: Query the _NET_WORKAREA property from EWMH.
+    results.availableRect = results.rect;
+
+    return results;
+}
+
+} // namespace WebKit