wm: Make WM_MOVE_PANEL use top-right coordinates.

src/platform/window_manager/mock_chrome.cc

 // Copyright (c) 2009 The Chromium OS Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "window_manager/mock_chrome.h"
 
 #include <cairomm/context.h>
 
 #include "base/command_line.h"
 #include "base/string_util.h"
@@ skipping 726 matching lines @@
 bool PanelTitlebar::on_button_press_event(GdkEventButton* event) {
   if (event->button == 2) {
     panel_->chrome()->ClosePanel(panel_);
     return true;
   } else if (event->button != 1) {
     return false;
   }
   mouse_down_ = true;
   mouse_down_abs_x_ = event->x_root;
   mouse_down_abs_y_ = event->y_root;
-  mouse_down_offset_x_ = event->x;
+
+  int width = 1, height = 1;
+  get_size(width, height);
+  mouse_down_offset_x_ = event->x - width;
   mouse_down_offset_y_ = event->y;
   dragging_ = false;
   return true;
 }
 
 bool PanelTitlebar::on_button_release_event(GdkEventButton* event) {
   if (event->button != 1) {
     return false;
   }
   // Only handle clicks that started in our window.
@@ skipping 31 matching lines @@
     return false;
   }
 
   if (!dragging_) {
     if (abs(event->x_root - mouse_down_abs_x_) >= kDragThreshold ||
         abs(event->y_root - mouse_down_abs_y_) >= kDragThreshold) {
       dragging_ = true;
     }
   }
   if (dragging_) {
-    WmIpc::Message msg(WmIpc::Message::WM_MOVE_PANEL);
+    WmIpc::Message msg(WmIpc::Message::WM_NOTIFY_PANEL_DRAGGED);
     msg.set_param(0, panel_->xid());
     msg.set_param(1, event->x_root - mouse_down_offset_x_);
     msg.set_param(2, event->y_root - mouse_down_offset_y_);
     CHECK(panel_->chrome()->wm_ipc()->SendMessage(
               panel_->chrome()->wm_ipc()->wm_window(), msg));
   }
   return true;
 }
 
 Panel::Panel(MockChrome* chrome,
@@ skipping 66 matching lines @@
   titlebar_->set_focused(false);
   titlebar_->Draw();
   return true;
 }
 
 MockChrome::MockChrome()
     : xconn_(new RealXConnection(GDK_DISPLAY())),
       atom_cache_(new AtomCache(xconn_.get())),
       wm_ipc_(new WmIpc(xconn_.get(), atom_cache_.get())),
       window_under_floating_tab_(NULL) {
+  WmIpc::Message msg(WmIpc::Message::WM_NOTIFY_IPC_VERSION);
+  msg.set_param(0, 1);
+  wm_ipc_->SendMessage(wm_ipc_->wm_window(), msg);
 }
 
 ChromeWindow* MockChrome::CreateWindow(int width, int height) {
   std::tr1::shared_ptr<ChromeWindow> win(new ChromeWindow(this, width, height));
   CHECK(windows_.insert(std::make_pair(win->xid(), win)).second);
   return win.get();
 }
 
 void MockChrome::CloseWindow(ChromeWindow* win) {
   CHECK(win);
@@ skipping 89 matching lines @@
 
   for (int i = 0; i < FLAGS_num_panels; ++i) {
     mock_chrome.CreatePanel(filenames[i % filenames.size()],
                             titles[i % titles.size()],
                             false);  // expanded=false
   }
 
   Gtk::Main::run();
   return 0;
 }