Modified OverviewMode's LabelButton bounds to cover the entire item.

ash/wm/overview/overview_window_button.cc

-// Copyright 2015 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/screen_util.h"
-#include "ash/shell.h"
-#include "ash/shell_window_ids.h"
-#include "ash/wm/overview/overview_animation_type.h"
-#include "ash/wm/overview/overview_window_button.h"
-#include "ash/wm/overview/overview_window_targeter.h"
-#include "ash/wm/overview/scoped_overview_animation_settings.h"
-#include "ash/wm/window_state.h"
-#include "ui/aura/scoped_window_targeter.h"
-#include "ui/aura/window.h"
-#include "ui/base/resource/resource_bundle.h"
-#include "ui/views/border.h"
-#include "ui/views/controls/button/label_button.h"
-#include "ui/views/widget/widget.h"
-
-namespace ash {
-
-namespace {
-
-// Foreground label color.
-static const SkColor kLabelColor = SK_ColorWHITE;
-
-// Label shadow color.
-static const SkColor kLabelShadow = 0xB0000000;
-
-// Solid shadow length from the label
-static const int kVerticalShadowOffset = 1;
-
-// Amount of blur applied to the label shadow
-static const int kShadowBlur = 10;
-
-}  // namespace
-
-// LabelButton shown under each of the windows.
-class OverviewWindowButton::OverviewButtonView : public views::LabelButton {
- public:
-  OverviewButtonView(views::ButtonListener* listener,
-                     const base::string16& text)
-      : views::LabelButton(listener, text),
-        selector_item_bounds_(gfx::Rect()) {}
-
-  ~OverviewButtonView() override {}
-
-  // Updates the |selector_item_bounds_|, converting them to our coordinates.
-  void SetSelectorItemBounds(const gfx::Rect& selector_item_bounds) {
-    selector_item_bounds_ = ScreenUtil::ConvertRectFromScreen(
-        GetWidget()->GetNativeWindow()->GetRootWindow(), selector_item_bounds);
-    gfx::Point origin = selector_item_bounds_.origin();
-    gfx::Rect target_bounds = GetWidget()->GetNativeWindow()->GetTargetBounds();
-    origin.Offset(-target_bounds.x(), -target_bounds.y());
-    selector_item_bounds_.set_origin(origin);
-  }
-
-  // views::View:
-  void OnMouseReleased(const ui::MouseEvent& event) override {
-    if (!selector_item_bounds_.Contains(event.location()))
-      return;
-
-    NotifyClick(event);
-  }
-
- private:
-  // Bounds to check if a mouse release occurred outside the window item.
-  gfx::Rect selector_item_bounds_;
-
-  DISALLOW_COPY_AND_ASSIGN(OverviewButtonView);
-};
-
-OverviewWindowButton::OverviewWindowButton(aura::Window* target)
-    : target_(target), window_label_(new views::Widget) {
-  views::Widget::InitParams params;
-  params.type = views::Widget::InitParams::TYPE_POPUP;
-  params.ownership = views::Widget::InitParams::WIDGET_OWNS_NATIVE_WIDGET;
-  params.opacity = views::Widget::InitParams::TRANSLUCENT_WINDOW;
-  params.parent = Shell::GetContainer(target_->GetRootWindow(),
-                                      kShellWindowId_OverlayContainer);
-  params.visible_on_all_workspaces = true;
-  window_label_->set_focus_on_creation(false);
-  window_label_->Init(params);
-  window_label_button_view_ = new OverviewButtonView(this, target_->title());
-  window_label_button_view_->SetTextColor(views::LabelButton::STATE_NORMAL,
-                                          kLabelColor);
-  window_label_button_view_->SetTextColor(views::LabelButton::STATE_HOVERED,
-                                          kLabelColor);
-  window_label_button_view_->SetTextColor(views::LabelButton::STATE_PRESSED,
-                                          kLabelColor);
-  window_label_button_view_->set_animate_on_state_change(false);
-  window_label_button_view_->SetHorizontalAlignment(gfx::ALIGN_CENTER);
-  window_label_button_view_->SetBorder(views::Border::NullBorder());
-  window_label_button_view_->SetTextShadows(gfx::ShadowValues(
-      1, gfx::ShadowValue(gfx::Point(0, kVerticalShadowOffset), kShadowBlur,
-                          kLabelShadow)));
-  ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
-  window_label_button_view_->SetFontList(
-      bundle.GetFontList(ui::ResourceBundle::BoldFont));
-  window_label_->SetContentsView(window_label_button_view_);
-
-  overview_window_targeter_ =
-      new OverviewWindowTargeter(window_label_->GetNativeWindow());
-  scoped_window_targeter_.reset(new aura::ScopedWindowTargeter(
-      target, scoped_ptr<OverviewWindowTargeter>(overview_window_targeter_)));
-}
-
-OverviewWindowButton::~OverviewWindowButton() {
-}
-
-void OverviewWindowButton::SetBounds(
-    const gfx::Rect& bounds,
-    const OverviewAnimationType& animation_type) {
-  if (!window_label_->IsVisible()) {
-    window_label_->Show();
-    ScopedOverviewAnimationSettings::SetupFadeInAfterLayout(
-        window_label_->GetNativeWindow());
-  }
-  gfx::Rect converted_bounds =
-      ScreenUtil::ConvertRectFromScreen(target_->GetRootWindow(), bounds);
-  gfx::Rect label_bounds(converted_bounds.x(), converted_bounds.bottom(),
-                         converted_bounds.width(), 0);
-  label_bounds.set_height(
-      window_label_->GetContentsView()->GetPreferredSize().height());
-  label_bounds.set_y(
-      label_bounds.y() -
-      window_label_->GetContentsView()->GetPreferredSize().height());
-
-  ScopedOverviewAnimationSettings animation_settings(
-      animation_type, window_label_->GetNativeWindow());
-
-  window_label_->GetNativeWindow()->SetBounds(label_bounds);
-  window_label_button_view_->SetSelectorItemBounds(bounds);
-  overview_window_targeter_->set_bounds(
-      ScreenUtil::ConvertRectFromScreen(target_->GetRootWindow(), bounds));
-}
-
-void OverviewWindowButton::SendFocusAlert() const {
-  window_label_button_view_->NotifyAccessibilityEvent(ui::AX_EVENT_FOCUS, true);
-}
-
-void OverviewWindowButton::SetLabelText(const base::string16& title) {
-  window_label_button_view_->SetText(title);
-}
-
-void OverviewWindowButton::SetOpacity(float opacity) {
-  window_label_->GetNativeWindow()->layer()->SetOpacity(opacity);
-}
-
-void OverviewWindowButton::ButtonPressed(views::Button* sender,
-                                         const ui::Event& event) {
-  wm::GetWindowState(target_)->Activate();
-}
-
-}  // namespace ash