1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "content/browser/renderer_host/gtk_window_utils.h" 6 7 #include <X11/Xlib.h> 8 #include <gdk/gdkx.h> 9 #include <gtk/gtk.h> 10 11 #include <vector> 12 13 #include "third_party/WebKit/public/platform/WebScreenInfo.h" 14 #include "ui/base/x/x11_util.h" 15 #include "ui/gfx/gtk_compat.h" 16 #include "ui/gfx/rect.h" 17 #include "ui/gfx/x/x11_types.h" 18 19 namespace content { 20 21 namespace { 22 23 // Returns the region of |window|'s desktop that isn't occupied by docks or 24 // panels. Returns an empty rect on failure. 25 gfx::Rect GetWorkArea(Window window) { 26 Window root = ui::GetX11RootWindow(); 27 int desktop = -1; 28 if (!ui::GetIntProperty(window, "_NET_WM_DESKTOP", &desktop)) { 29 // Hack for ion3: _NET_WM_DESKTOP doesn't get set on individual windows, but 30 // _NET_CURRENT_DESKTOP and _NET_WORKAREA do get set. 31 ui::GetIntProperty(root, "_NET_CURRENT_DESKTOP", &desktop); 32 } 33 if (desktop < 0) 34 return gfx::Rect(); 35 36 std::vector<int> property; 37 if (!ui::GetIntArrayProperty(root, "_NET_WORKAREA", &property)) 38 return gfx::Rect(); 39 40 size_t start_index = 4 * desktop; 41 if (property.size() < start_index + 4) 42 return gfx::Rect(); 43 44 return gfx::Rect(property[start_index], property[start_index + 1], 45 property[start_index + 2], property[start_index + 3]); 46 } 47 48 blink::WebScreenInfo GetScreenInfo(XDisplay* display, int screenNumber) { 49 // XDisplayWidth() and XDisplayHeight() return cached values. To ensure that 50 // we return the correct dimensions after the screen is resized, query the 51 // root window's geometry each time. 52 Window root = RootWindow(display, screenNumber); 53 Window root_ret; 54 int x, y; 55 unsigned int width, height, border, depth; 56 XGetGeometry( 57 display, root, &root_ret, &x, &y, &width, &height, &border, &depth); 58 59 blink::WebScreenInfo results; 60 results.depthPerComponent = 8; // Assume 8bpp, which is usually right. 61 results.depth = depth; 62 results.isMonochrome = depth == 1; 63 results.rect = blink::WebRect(x, y, width, height); 64 results.availableRect = results.rect; 65 return results; 66 } 67 68 } // namespace 69 70 void GetScreenInfoFromNativeWindow( 71 GdkWindow* gdk_window, blink::WebScreenInfo* results) { 72 GdkScreen* screen = gdk_window_get_screen(gdk_window); 73 *results = GetScreenInfo(gdk_x11_drawable_get_xdisplay(gdk_window), 74 gdk_x11_screen_get_screen_number(screen)); 75 76 int monitor_number = gdk_screen_get_monitor_at_window(screen, gdk_window); 77 GdkRectangle monitor_rect; 78 gdk_screen_get_monitor_geometry(screen, monitor_number, &monitor_rect); 79 results->rect = blink::WebRect(monitor_rect.x, monitor_rect.y, 80 monitor_rect.width, monitor_rect.height); 81 82 gfx::Rect available_rect = results->rect; 83 gfx::Rect work_area = GetWorkArea(GDK_WINDOW_XID(gdk_window)); 84 if (!work_area.IsEmpty()) 85 available_rect.Intersect(work_area); 86 results->availableRect = available_rect; 87 } 88 89 } // namespace content 90
