Converts mash to use the common non-client frame

ash/mus/frame/caption_buttons/frame_caption_button_container_view.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/mus/frame/caption_buttons/frame_caption_button_container_view.h"
-
-#include <stddef.h>
-
-#include <cmath>
-#include <map>
-
-#include "ash/mus/frame/caption_buttons/frame_caption_button.h"
-#include "base/macros.h"
-#include "ui/base/hit_test.h"
-#include "ui/base/l10n/l10n_util.h"
-#include "ui/gfx/animation/slide_animation.h"
-#include "ui/gfx/animation/tween.h"
-#include "ui/gfx/canvas.h"
-#include "ui/gfx/geometry/insets.h"
-#include "ui/gfx/geometry/point.h"
-#include "ui/strings/grit/ui_strings.h"  // Accessibility names
-#include "ui/views/widget/widget.h"
-#include "ui/views/widget/widget_delegate.h"
-
-namespace ash {
-namespace mus {
-
-namespace {
-
-// Duration of the animation of the position of |minimize_button_|.
-const int kPositionAnimationDurationMs = 500;
-
-// Duration of the animation of the alpha of |size_button_|.
-const int kAlphaAnimationDurationMs = 250;
-
-// Delay during |maximize_mode_animation_| hide to wait before beginning to
-// animate the position of |minimize_button_|.
-const int kHidePositionDelayMs = 100;
-
-// Duration of |maximize_mode_animation_| hiding.
-// Hiding size button 250
-// |------------------------|
-// Delay 100      Slide minimize button 500
-// |---------|-------------------------------------------------|
-const int kHideAnimationDurationMs =
-    kHidePositionDelayMs + kPositionAnimationDurationMs;
-
-// Delay during |maximize_mode_animation_| show to wait before beginning to
-// animate the alpha of |size_button_|.
-const int kShowAnimationAlphaDelayMs = 100;
-
-// Duration of |maximize_mode_animation_| showing.
-// Slide minimize button 500
-// |-------------------------------------------------|
-// Delay 100   Show size button 250
-// |---------|-----------------------|
-const int kShowAnimationDurationMs = kPositionAnimationDurationMs;
-
-// Value of |maximize_mode_animation_| showing to begin animating alpha of
-// |size_button_|.
-float SizeButtonShowStartValue() {
-  return static_cast<float>(kShowAnimationAlphaDelayMs) /
-         kShowAnimationDurationMs;
-}
-
-// Amount of |maximize_mode_animation_| showing to animate the alpha of
-// |size_button_|.
-float SizeButtonShowDuration() {
-  return static_cast<float>(kAlphaAnimationDurationMs) /
-         kShowAnimationDurationMs;
-}
-
-// Amount of |maximize_mode_animation_| hiding to animate the alpha of
-// |size_button_|.
-float SizeButtonHideDuration() {
-  return static_cast<float>(kAlphaAnimationDurationMs) /
-         kHideAnimationDurationMs;
-}
-
-// Value of |maximize_mode_animation_| hiding to begin animating the position of
-// |minimize_button_|.
-float HidePositionStartValue() {
-  return 1.0f -
-         static_cast<float>(kHidePositionDelayMs) / kHideAnimationDurationMs;
-}
-
-// Converts |point| from |src| to |dst| and hittests against |dst|.
-bool ConvertPointToViewAndHitTest(const views::View* src,
-                                  const views::View* dst,
-                                  const gfx::Point& point) {
-  gfx::Point converted(point);
-  views::View::ConvertPointToTarget(src, dst, &converted);
-  return dst->HitTestPoint(converted);
-}
-
-// Bounds animation values to the range 0.0 - 1.0. Allows for mapping of offset
-// animations to the expected range so that gfx::Tween::CalculateValue() can be
-// used.
-double CapAnimationValue(double value) {
-  return std::min(1.0, std::max(0.0, value));
-}
-
-}  // namespace
-
-// static
-const char FrameCaptionButtonContainerView::kViewClassName[] =
-    "FrameCaptionButtonContainerView";
-
-FrameCaptionButtonContainerView::FrameCaptionButtonContainerView(
-    views::Widget* frame)
-    : frame_(frame),
-      minimize_button_(NULL),
-      size_button_(NULL),
-      close_button_(NULL) {
-  const bool size_button_visibility = ShouldSizeButtonBeVisible();
-  maximize_mode_animation_.reset(new gfx::SlideAnimation(this));
-  maximize_mode_animation_->SetTweenType(gfx::Tween::LINEAR);
-
-  // Ensure animation tracks visibility of size button.
-  if (size_button_visibility)
-    maximize_mode_animation_->Reset(1.0f);
-
-  // Insert the buttons left to right.
-  minimize_button_ = new FrameCaptionButton(this, CAPTION_BUTTON_ICON_MINIMIZE);
-  minimize_button_->SetAccessibleName(
-      l10n_util::GetStringUTF16(IDS_APP_ACCNAME_MINIMIZE));
-  minimize_button_->SetVisible(frame_->widget_delegate()->CanMinimize());
-  AddChildView(minimize_button_);
-
-  size_button_ =
-      new FrameCaptionButton(this, CAPTION_BUTTON_ICON_MAXIMIZE_RESTORE);
-  size_button_->SetAccessibleName(
-      l10n_util::GetStringUTF16(IDS_APP_ACCNAME_MAXIMIZE));
-  size_button_->SetVisible(size_button_visibility);
-  AddChildView(size_button_);
-
-  close_button_ = new FrameCaptionButton(this, CAPTION_BUTTON_ICON_CLOSE);
-  close_button_->SetAccessibleName(
-      l10n_util::GetStringUTF16(IDS_APP_ACCNAME_CLOSE));
-  AddChildView(close_button_);
-}
-
-FrameCaptionButtonContainerView::~FrameCaptionButtonContainerView() {}
-
-void FrameCaptionButtonContainerView::SetButtonImages(
-    CaptionButtonIcon icon,
-    int icon_image_id,
-    int hovered_background_image_id,
-    int pressed_background_image_id) {
-  button_icon_id_map_[icon] = ButtonIconIds(
-      icon_image_id, hovered_background_image_id, pressed_background_image_id);
-  FrameCaptionButton* buttons[] = {minimize_button_, size_button_,
-                                   close_button_};
-  for (size_t i = 0; i < arraysize(buttons); ++i) {
-    if (buttons[i]->icon() == icon) {
-      buttons[i]->SetImages(icon, FrameCaptionButton::ANIMATE_NO, icon_image_id,
-                            hovered_background_image_id,
-                            pressed_background_image_id);
-    }
-  }
-}
-
-void FrameCaptionButtonContainerView::SetPaintAsActive(bool paint_as_active) {
-  minimize_button_->set_paint_as_active(paint_as_active);
-  size_button_->set_paint_as_active(paint_as_active);
-  close_button_->set_paint_as_active(paint_as_active);
-}
-
-void FrameCaptionButtonContainerView::ResetWindowControls() {
-  SetButtonsToNormal(ANIMATE_NO);
-}
-
-int FrameCaptionButtonContainerView::NonClientHitTest(
-    const gfx::Point& point) const {
-  if (close_button_->visible() &&
-      ConvertPointToViewAndHitTest(this, close_button_, point)) {
-    return HTCLOSE;
-  } else if (size_button_->visible() &&
-             ConvertPointToViewAndHitTest(this, size_button_, point)) {
-    return HTMAXBUTTON;
-  } else if (minimize_button_->visible() &&
-             ConvertPointToViewAndHitTest(this, minimize_button_, point)) {
-    return HTMINBUTTON;
-  }
-  return HTNOWHERE;
-}
-
-void FrameCaptionButtonContainerView::UpdateSizeButtonVisibility() {
-  bool visible = ShouldSizeButtonBeVisible();
-  if (visible) {
-    size_button_->SetVisible(true);
-    maximize_mode_animation_->SetSlideDuration(kShowAnimationDurationMs);
-    maximize_mode_animation_->Show();
-  } else {
-    maximize_mode_animation_->SetSlideDuration(kHideAnimationDurationMs);
-    maximize_mode_animation_->Hide();
-  }
-}
-
-gfx::Size FrameCaptionButtonContainerView::GetPreferredSize() const {
-  int width = 0;
-  for (int i = 0; i < child_count(); ++i) {
-    const views::View* child = child_at(i);
-    if (child->visible())
-      width += child_at(i)->GetPreferredSize().width();
-  }
-  return gfx::Size(width, close_button_->GetPreferredSize().height());
-}
-
-void FrameCaptionButtonContainerView::Layout() {
-  int x = 0;
-  for (int i = 0; i < child_count(); ++i) {
-    views::View* child = child_at(i);
-    if (!child->visible())
-      continue;
-
-    gfx::Size size = child->GetPreferredSize();
-    child->SetBounds(x, 0, size.width(), size.height());
-    x += size.width();
-  }
-  if (maximize_mode_animation_->is_animating()) {
-    AnimationProgressed(maximize_mode_animation_.get());
-  }
-}
-
-const char* FrameCaptionButtonContainerView::GetClassName() const {
-  return kViewClassName;
-}
-
-void FrameCaptionButtonContainerView::AnimationEnded(
-    const gfx::Animation* animation) {
-  // Ensure that position is calculated at least once.
-  AnimationProgressed(animation);
-
-  double current_value = maximize_mode_animation_->GetCurrentValue();
-  if (current_value == 0.0) {
-    size_button_->SetVisible(false);
-    PreferredSizeChanged();
-  }
-}
-
-void FrameCaptionButtonContainerView::AnimationProgressed(
-    const gfx::Animation* animation) {
-  double current_value = animation->GetCurrentValue();
-  int size_alpha = 0;
-  int minimize_x = 0;
-  if (maximize_mode_animation_->IsShowing()) {
-    double scaled_value =
-        CapAnimationValue((current_value - SizeButtonShowStartValue()) /
-                          SizeButtonShowDuration());
-    double tweened_value_alpha =
-        gfx::Tween::CalculateValue(gfx::Tween::EASE_OUT, scaled_value);
-    size_alpha = gfx::Tween::LinearIntValueBetween(tweened_value_alpha, 0, 255);
-
-    double tweened_value_slide =
-        gfx::Tween::CalculateValue(gfx::Tween::EASE_OUT, current_value);
-    minimize_x = gfx::Tween::LinearIntValueBetween(tweened_value_slide,
-                                                   size_button_->x(), 0);
-  } else {
-    double scaled_value_alpha =
-        CapAnimationValue((1.0f - current_value) / SizeButtonHideDuration());
-    double tweened_value_alpha =
-        gfx::Tween::CalculateValue(gfx::Tween::EASE_IN, scaled_value_alpha);
-    size_alpha = gfx::Tween::LinearIntValueBetween(tweened_value_alpha, 255, 0);
-
-    double scaled_value_position = CapAnimationValue(
-        (HidePositionStartValue() - current_value) / HidePositionStartValue());
-    double tweened_value_position =
-        gfx::Tween::CalculateValue(gfx::Tween::EASE_OUT, scaled_value_position);
-    minimize_x = gfx::Tween::LinearIntValueBetween(tweened_value_position, 0,
-                                                   size_button_->x());
-  }
-  size_button_->SetAlpha(size_alpha);
-  minimize_button_->SetX(minimize_x);
-}
-
-void FrameCaptionButtonContainerView::SetButtonIcon(FrameCaptionButton* button,
-                                                    CaptionButtonIcon icon,
-                                                    Animate animate) {
-  // The early return is dependant on |animate| because callers use
-  // SetButtonIcon() with ANIMATE_NO to progress |button|'s crossfade animation
-  // to the end.
-  if (button->icon() == icon &&
-      (animate == ANIMATE_YES || !button->IsAnimatingImageSwap())) {
-    return;
-  }
-
-  FrameCaptionButton::Animate fcb_animate =
-      (animate == ANIMATE_YES) ? FrameCaptionButton::ANIMATE_YES
-                               : FrameCaptionButton::ANIMATE_NO;
-  std::map<CaptionButtonIcon, ButtonIconIds>::const_iterator it =
-      button_icon_id_map_.find(icon);
-  if (it != button_icon_id_map_.end()) {
-    button->SetImages(icon, fcb_animate, it->second.icon_image_id,
-                      it->second.hovered_background_image_id,
-                      it->second.pressed_background_image_id);
-  }
-}
-
-bool FrameCaptionButtonContainerView::ShouldSizeButtonBeVisible() const {
-  return frame_->widget_delegate()->CanMaximize();
-}
-
-void FrameCaptionButtonContainerView::SetButtonsToNormal(Animate animate) {
-  SetButtonIcons(CAPTION_BUTTON_ICON_MINIMIZE, CAPTION_BUTTON_ICON_CLOSE,
-                 animate);
-  minimize_button_->SetState(views::Button::STATE_NORMAL);
-  size_button_->SetState(views::Button::STATE_NORMAL);
-  close_button_->SetState(views::Button::STATE_NORMAL);
-}
-
-void FrameCaptionButtonContainerView::SetButtonIcons(
-    CaptionButtonIcon minimize_button_icon,
-    CaptionButtonIcon close_button_icon,
-    Animate animate) {
-  SetButtonIcon(minimize_button_, minimize_button_icon, animate);
-  SetButtonIcon(close_button_, close_button_icon, animate);
-}
-
-void FrameCaptionButtonContainerView::ButtonPressed(views::Button* sender,
-                                                    const ui::Event& event) {
-  // Abort any animations of the button icons.
-  SetButtonsToNormal(ANIMATE_NO);
-
-  if (sender == minimize_button_) {
-    frame_->Minimize();
-  } else if (sender == size_button_) {
-    if (frame_->IsFullscreen()) {  // Can be clicked in immersive fullscreen.
-      frame_->Restore();
-    } else if (frame_->IsMaximized()) {
-      frame_->Restore();
-    } else {
-      frame_->Maximize();
-    }
-  } else if (sender == close_button_) {
-    frame_->Close();
-  }
-}
-
-FrameCaptionButtonContainerView::ButtonIconIds::ButtonIconIds()
-    : icon_image_id(-1),
-      hovered_background_image_id(-1),
-      pressed_background_image_id(-1) {}
-
-FrameCaptionButtonContainerView::ButtonIconIds::ButtonIconIds(
-    int icon_id,
-    int hovered_background_id,
-    int pressed_background_id)
-    : icon_image_id(icon_id),
-      hovered_background_image_id(hovered_background_id),
-      pressed_background_image_id(pressed_background_id) {}
-
-FrameCaptionButtonContainerView::ButtonIconIds::~ButtonIconIds() {}
-
-}  // namespace mus
-}  // namespace ash