mus: Server-side implementation of modal windows

components/mus/ws/connection_manager.cc

 // Copyright 2014 The Chromium 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 "components/mus/ws/connection_manager.h"
 
 #include "base/logging.h"
 #include "base/stl_util.h"
 #include "components/mus/ws/connection_manager_delegate.h"
 #include "components/mus/ws/display.h"
@@ skipping 443 matching lines @@
 
   ProcessWillChangeWindowHierarchy(window, new_parent, old_parent);
 }
 
 void ConnectionManager::OnWindowHierarchyChanged(ServerWindow* window,
                                                  ServerWindow* new_parent,
                                                  ServerWindow* old_parent) {
   if (in_destructor_)
     return;
 
+  WindowManagerState* wms =
+      display_manager_->GetWindowManagerAndDisplay(window).window_manager_state;
+  if (wms)
+    wms->ReleaseCaptureBlockedByAnyModalWindow();
+
   ProcessWindowHierarchyChanged(window, new_parent, old_parent);
 
   // TODO(beng): optimize.
   if (old_parent)
     SchedulePaint(old_parent, gfx::Rect(old_parent->bounds().size()));
   if (new_parent)
     SchedulePaint(new_parent, gfx::Rect(new_parent->bounds().size()));
 
   MaybeUpdateNativeCursor(window);
 }
@@ skipping 45 matching lines @@
        (!window->visible() && window->parent()->IsDrawn()))) {
     SchedulePaint(window->parent(), window->bounds());
   }
 
   for (auto& pair : tree_map_) {
     pair.second->ProcessWillChangeWindowVisibility(
         window, IsOperationSource(pair.first));
   }
 }
 
+void ConnectionManager::OnWindowVisibilityChanged(ServerWindow* window) {
+  if (in_destructor_)
+    return;
+
+  WindowManagerState* wms =
+      display_manager_->GetWindowManagerAndDisplay(window).window_manager_state;
+  if (wms)
+    wms->ReleaseCaptureBlockedByModalWindow(window);
+}
+
 void ConnectionManager::OnWindowPredefinedCursorChanged(ServerWindow* window,
                                                         int32_t cursor_id) {
   if (in_destructor_)
     return;
 
   ProcessWillChangeWindowPredefinedCursor(window, cursor_id);
 }
 
 void ConnectionManager::OnWindowSharedPropertyChanged(
     ServerWindow* window,
@@ skipping 35 matching lines @@
 void ConnectionManager::OnFirstDisplayReady() {
   delegate_->OnFirstDisplayReady();
 }
 
 void ConnectionManager::OnNoMoreDisplays() {
   delegate_->OnNoMoreDisplays();
 }
 
 }  // namespace ws
 }  // namespace mus