Ash: Allow resize along 1 pixel edge inside window content

Mocks call for resize handles to function along a single pixel edge inside the window, overlapping the web content.  Use the aura::Window::set_hit_test_bounds_inset() functionality to make hover/click events along that border pass through to the non-client area of the window frames.  This also allows windows to be resized when they are flush against the top/left/right edges of the screen.

BUG=117542
TEST=aura_shell_unittests ShelfLayoutManager, manually resize window from left/right/bottom/top edges


Review URL: http://codereview.chromium.org/9694012

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@126539 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 18 insertions, 1 deletions

diff --git a/ui/aura/window_unittest.cc b/ui/aura/window_unittest.cc
index ee3aeaf..e4c9def 100644
--- a/ui/aura/window_unittest.cc
+++ b/ui/aura/window_unittest.cc
@@ -282,7 +282,7 @@ TEST_F(WindowTest, HitTest) {
   EXPECT_FALSE(w1.HitTest(gfx::Point(-1, -1)));
 
   // We can expand the bounds slightly to track events outside our border.
-  w1.set_hit_test_bounds_inset(-1);
+  w1.SetHitTestBoundsOverride(1, 0);
   EXPECT_TRUE(w1.HitTest(gfx::Point(-1, -1)));
   EXPECT_FALSE(w1.HitTest(gfx::Point(-2, -2)));
 
@@ -318,6 +318,23 @@ TEST_F(WindowTest, GetEventHandlerForPoint) {
   EXPECT_EQ(w13.get(), root->GetEventHandlerForPoint(gfx::Point(26, 481)));
 }
 
+TEST_F(WindowTest, GetEventHandlerForPointWithOverride) {
+  // If our child is flush to our top-left corner he gets events just inside the
+  // window edges.
+  scoped_ptr<Window> parent(
+      CreateTestWindow(SK_ColorWHITE, 1, gfx::Rect(10, 20, 400, 500), NULL));
+  scoped_ptr<Window> child(
+      CreateTestWindow(SK_ColorRED, 2, gfx::Rect(0, 0, 60, 70), parent.get()));
+  EXPECT_EQ(child.get(), parent->GetEventHandlerForPoint(gfx::Point(0, 0)));
+  EXPECT_EQ(child.get(), parent->GetEventHandlerForPoint(gfx::Point(1, 1)));
+
+  // We can override the hit test bounds of the parent to make the parent grab
+  // events along that edge.
+  parent->SetHitTestBoundsOverride(0, 1);
+  EXPECT_EQ(parent.get(), parent->GetEventHandlerForPoint(gfx::Point(0, 0)));
+  EXPECT_EQ(child.get(),  parent->GetEventHandlerForPoint(gfx::Point(1, 1)));
+}
+
 TEST_F(WindowTest, GetTopWindowContainingPoint) {
   Window* root = root_window();
   root->SetBounds(gfx::Rect(0, 0, 300, 300));