Remove title and icon from chrome apps native style title bars.

chrome/browser/ui/views/apps/glass_app_window_frame_view.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 "chrome/browser/ui/views/apps/glass_app_window_frame_view.h"
+
+#include "apps/ui/native_app_window.h"
+#include "ui/base/hit_test.h"
+#include "ui/views/widget/widget.h"
+#include "ui/views/widget/widget_delegate.h"
+
+namespace {
+
+const int kResizeAreaCornerSize = 16;
+
+}  // namespace
+
+namespace apps {
+
+const char GlassAppWindowFrameView::kViewClassName[] =
+    "browser/ui/views/extensions/GlassAppWindowFrameView";
+
+GlassAppWindowFrameView::GlassAppWindowFrameView(NativeAppWindow* window,
+                                                 views::Widget* widget)
+    : window_(window), widget_(widget) {}
+
+GlassAppWindowFrameView::~GlassAppWindowFrameView() {}
+
+gfx::Insets GlassAppWindowFrameView::GetGlassInsets() const {
+  // If 1 is not subtraced, they are too big. There is possibly some reason
+  // for that.
+  int caption_height =
+      GetSystemMetrics(SM_CYSMICON) + GetSystemMetrics(SM_CYSIZEFRAME) - 1;
+  int frame_size = GetSystemMetrics(SM_CXSIZEFRAME) - 1;
+  return gfx::Insets(
+      frame_size + caption_height, frame_size, frame_size, frame_size);
+}
+
+gfx::Rect GlassAppWindowFrameView::GetBoundsForClientView() const {
+  if (widget_->IsFullscreen())
+    return bounds();
+
+  gfx::Insets insets = GetGlassInsets();
+  return gfx::Rect(insets.left(),
+                   insets.top(),
+                   std::max(0, width() - insets.left() - insets.right()),
+                   std::max(0, height() - insets.top() - insets.bottom()));
+}
+
+gfx::Rect GlassAppWindowFrameView::GetWindowBoundsForClientBounds(
+    const gfx::Rect& client_bounds) const {
+  gfx::Insets insets = GetGlassInsets();
+  return gfx::Rect(client_bounds.x() - insets.left(),
+                   client_bounds.y() - insets.top(),
+                   client_bounds.width() + insets.left() + insets.right(),
+                   client_bounds.height() + insets.top() + insets.bottom());
+}
+
+int GlassAppWindowFrameView::NonClientHitTest(const gfx::Point& point) {
+  if (widget_->IsFullscreen())
+    return HTCLIENT;
+
+  if (!bounds().Contains(point))
+    return HTNOWHERE;
+
+  // Check the frame first, as we allow a small area overlapping the contents
+  // to be used for resize handles.
+  bool can_ever_resize = widget_->widget_delegate()
+                             ? widget_->widget_delegate()->CanResize()
+                             : false;
+  // Don't allow overlapping resize handles when the window is maximized or
+  // fullscreen, as it can't be resized in those states.
+  int resize_border = GetSystemMetrics(SM_CXSIZEFRAME);
+  int frame_component =
+      GetHTComponentForFrame(point,
+                             resize_border,
+                             resize_border,
+                             kResizeAreaCornerSize - resize_border,
+                             kResizeAreaCornerSize - resize_border,
+                             can_ever_resize);
+  if (frame_component != HTNOWHERE)
+    return frame_component;
+
+  int client_component = widget_->client_view()->NonClientHitTest(point);
+  if (client_component != HTNOWHERE)
+    return client_component;
+
+  // Caption is a safe default.
+  return HTCAPTION;
+}
+
+void GlassAppWindowFrameView::GetWindowMask(const gfx::Size& size,
+                                            gfx::Path* window_mask) {
+  // We got nothing to say about no window mask.
+}
+
+gfx::Size GlassAppWindowFrameView::GetPreferredSize() {
+  gfx::Size pref = widget_->client_view()->GetPreferredSize();
+  gfx::Rect bounds(0, 0, pref.width(), pref.height());
+  return widget_->non_client_view()
+      ->GetWindowBoundsForClientBounds(bounds)
+      .size();
+}
+
+const char* GlassAppWindowFrameView::GetClassName() const {
+  return kViewClassName;
+}
+
+gfx::Size GlassAppWindowFrameView::GetMinimumSize() {
+  gfx::Size min_size = widget_->client_view()->GetMinimumSize();
+  gfx::Rect client_bounds = GetBoundsForClientView();
+  min_size.Enlarge(0, client_bounds.y());
+  return min_size;
+}
+
+gfx::Size GlassAppWindowFrameView::GetMaximumSize() {
+  gfx::Size max_size = widget_->client_view()->GetMaximumSize();
+
+  // Add to the client maximum size the height of any title bar and borders.
+  gfx::Size client_size = GetBoundsForClientView().size();
+  if (max_size.width())
+    max_size.Enlarge(width() - client_size.width(), 0);
+  if (max_size.height())
+    max_size.Enlarge(0, height() - client_size.height());
+
+  return max_size;
+}
+
+}  // namespace apps