Stick windows to sides of workspaces

ash/wm/workspace/snap_sizer.cc

 // Copyright (c) 2012 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 "ash/wm/workspace/snap_sizer.h"
 
 #include <cmath>
 
+#include "ash/ash_switches.h"
 #include "ash/screen_ash.h"
 #include "ash/wm/property_util.h"
 #include "ash/wm/window_resizer.h"
 #include "ash/wm/window_util.h"
+#include "ash/wm/workspace/workspace_window_resizer.h"
+#include "base/command_line.h"
 #include "ui/aura/window.h"
 #include "ui/gfx/screen.h"
 
 namespace ash {
 namespace internal {
 
 namespace {
 
 // A list of ideal window width in pixel which will be used to populate the
 // |usable_width_| list.
@@ skipping 63 matching lines @@
 }
 
 SnapSizer::~SnapSizer() {
 }
 
 void SnapSizer::SnapWindow(aura::Window* window, SnapSizer::Edge edge) {
   if (!wm::CanSnapWindow(window))
     return;
   internal::SnapSizer sizer(window, gfx::Point(), edge,
       internal::SnapSizer::OTHER_INPUT);
+  gfx::Rect bounds = sizer.GetSnapBounds(window->bounds());
   if (wm::IsWindowFullscreen(window) || wm::IsWindowMaximized(window)) {
     // Before we can set the bounds we need to restore the window.
     // Restoring the window will set the window to its restored bounds.
     // To avoid an unnecessary bounds changes (which may have side effects)
     // we set the restore bounds to the bounds we want, restore the window,
     // then reset the restore bounds. This way no unnecessary bounds
     // changes occurs and the original restore bounds is remembered.
     gfx::Rect restore = *GetRestoreBoundsInScreen(window);
-    SetRestoreBoundsInParent(window, sizer.GetSnapBounds(window->bounds()));
+    SetRestoreBoundsInParent(window, bounds);
     wm::RestoreWindow(window);
     SetRestoreBoundsInScreen(window, restore);
   } else {
-    window->SetBounds(sizer.GetSnapBounds(window->bounds()));
+    window->SetBounds(bounds);
   }
+  gfx::Rect bounds_in_parent = ScreenAsh::ConvertRectToScreen(
+      window->parent(),
+      ScreenAsh::GetMaximizedWindowBoundsInParent(window));
+  int stuck_edges_mask =
+      internal::WorkspaceWindowResizer::CalculateStuckEdges(
+          bounds, bounds_in_parent);
+  if (GetStuckToEdge(window) != stuck_edges_mask &&
+      CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kAshEnableDockedWindows))
+    SetStuckToEdge(window, stuck_edges_mask);
 }
 
 void SnapSizer::Update(const gfx::Point& location) {
   // See description above for details on this behavior.
   num_moves_since_adjust_++;
   if ((base::TimeTicks::Now() - time_last_update_).InMilliseconds() >
       kDelayBeforeIncreaseMS) {
     ChangeBounds(location.x(),
                  CalculateIncrement(location.x(), last_update_x_));
   } else {
@@ skipping 98 matching lines @@
   return GetTargetBoundsForSize(size_index_);
 }
 
 bool SnapSizer::AlongEdge(int x) const {
   gfx::Rect area(ScreenAsh::GetDisplayBoundsInParent(window_));
   return (x <= area.x()) || (x >= area.right() - 1);
 }
 
 }  // namespace internal
 }  // namespace ash