Componentize NativeAppWindowViews

apps/ui/views/native_app_window_views.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 "apps/ui/views/native_app_window_views.h"
-
-#include "base/threading/sequenced_worker_pool.h"
-#include "content/public/browser/render_view_host.h"
-#include "content/public/browser/render_widget_host_view.h"
-#include "content/public/browser/web_contents.h"
-#include "extensions/browser/app_window/app_window.h"
-#include "extensions/common/draggable_region.h"
-#include "third_party/skia/include/core/SkRegion.h"
-#include "ui/gfx/path.h"
-#include "ui/views/controls/webview/webview.h"
-#include "ui/views/widget/widget.h"
-#include "ui/views/window/non_client_view.h"
-
-#if defined(USE_AURA)
-#include "ui/aura/window.h"
-#endif
-
-using extensions::AppWindow;
-
-namespace apps {
-
-NativeAppWindowViews::NativeAppWindowViews()
-    : app_window_(NULL),
-      web_view_(NULL),
-      widget_(NULL),
-      frameless_(false),
-      resizable_(false) {}
-
-void NativeAppWindowViews::Init(AppWindow* app_window,
-                                const AppWindow::CreateParams& create_params) {
-  app_window_ = app_window;
-  frameless_ = create_params.frame == AppWindow::FRAME_NONE;
-  resizable_ = create_params.resizable;
-  size_constraints_.set_minimum_size(
-      create_params.GetContentMinimumSize(gfx::Insets()));
-  size_constraints_.set_maximum_size(
-      create_params.GetContentMaximumSize(gfx::Insets()));
-  Observe(app_window_->web_contents());
-
-  widget_ = new views::Widget;
-  InitializeWindow(app_window, create_params);
-
-  OnViewWasResized();
-  widget_->AddObserver(this);
-}
-
-NativeAppWindowViews::~NativeAppWindowViews() {
-  web_view_->SetWebContents(NULL);
-}
-
-void NativeAppWindowViews::OnCanHaveAlphaEnabledChanged() {
-  app_window_->OnNativeWindowChanged();
-}
-
-void NativeAppWindowViews::InitializeWindow(
-    AppWindow* app_window,
-    const AppWindow::CreateParams& create_params) {
-  // Stub implementation. See also ChromeNativeAppWindowViews.
-  views::Widget::InitParams init_params(views::Widget::InitParams::TYPE_WINDOW);
-  init_params.delegate = this;
-  init_params.keep_on_top = create_params.always_on_top;
-  widget_->Init(init_params);
-  widget_->CenterWindow(
-      create_params.GetInitialWindowBounds(gfx::Insets()).size());
-}
-
-// ui::BaseWindow implementation.
-
-bool NativeAppWindowViews::IsActive() const { return widget_->IsActive(); }
-
-bool NativeAppWindowViews::IsMaximized() const {
-  return widget_->IsMaximized();
-}
-
-bool NativeAppWindowViews::IsMinimized() const {
-  return widget_->IsMinimized();
-}
-
-bool NativeAppWindowViews::IsFullscreen() const {
-  return widget_->IsFullscreen();
-}
-
-gfx::NativeWindow NativeAppWindowViews::GetNativeWindow() {
-  return widget_->GetNativeWindow();
-}
-
-gfx::Rect NativeAppWindowViews::GetRestoredBounds() const {
-  return widget_->GetRestoredBounds();
-}
-
-ui::WindowShowState NativeAppWindowViews::GetRestoredState() const {
-  // Stub implementation. See also ChromeNativeAppWindowViews.
-  if (IsMaximized())
-    return ui::SHOW_STATE_MAXIMIZED;
-  if (IsFullscreen())
-    return ui::SHOW_STATE_FULLSCREEN;
-  return ui::SHOW_STATE_NORMAL;
-}
-
-gfx::Rect NativeAppWindowViews::GetBounds() const {
-  return widget_->GetWindowBoundsInScreen();
-}
-
-void NativeAppWindowViews::Show() {
-  if (widget_->IsVisible()) {
-    widget_->Activate();
-    return;
-  }
-  widget_->Show();
-}
-
-void NativeAppWindowViews::ShowInactive() {
-  if (widget_->IsVisible())
-    return;
-
-  widget_->ShowInactive();
-}
-
-void NativeAppWindowViews::Hide() { widget_->Hide(); }
-
-void NativeAppWindowViews::Close() { widget_->Close(); }
-
-void NativeAppWindowViews::Activate() { widget_->Activate(); }
-
-void NativeAppWindowViews::Deactivate() { widget_->Deactivate(); }
-
-void NativeAppWindowViews::Maximize() { widget_->Maximize(); }
-
-void NativeAppWindowViews::Minimize() { widget_->Minimize(); }
-
-void NativeAppWindowViews::Restore() { widget_->Restore(); }
-
-void NativeAppWindowViews::SetBounds(const gfx::Rect& bounds) {
-  widget_->SetBounds(bounds);
-}
-
-void NativeAppWindowViews::FlashFrame(bool flash) {
-  widget_->FlashFrame(flash);
-}
-
-bool NativeAppWindowViews::IsAlwaysOnTop() const {
-  // Stub implementation. See also ChromeNativeAppWindowViews.
-  return widget_->IsAlwaysOnTop();
-}
-
-void NativeAppWindowViews::SetAlwaysOnTop(bool always_on_top) {
-  widget_->SetAlwaysOnTop(always_on_top);
-}
-
-gfx::NativeView NativeAppWindowViews::GetHostView() const {
-  return widget_->GetNativeView();
-}
-
-gfx::Point NativeAppWindowViews::GetDialogPosition(const gfx::Size& size) {
-  gfx::Size app_window_size = widget_->GetWindowBoundsInScreen().size();
-  return gfx::Point(app_window_size.width() / 2 - size.width() / 2,
-                    app_window_size.height() / 2 - size.height() / 2);
-}
-
-gfx::Size NativeAppWindowViews::GetMaximumDialogSize() {
-  return widget_->GetWindowBoundsInScreen().size();
-}
-
-void NativeAppWindowViews::AddObserver(
-    web_modal::ModalDialogHostObserver* observer) {
-  observer_list_.AddObserver(observer);
-}
-void NativeAppWindowViews::RemoveObserver(
-    web_modal::ModalDialogHostObserver* observer) {
-  observer_list_.RemoveObserver(observer);
-}
-
-void NativeAppWindowViews::OnViewWasResized() {
-  FOR_EACH_OBSERVER(web_modal::ModalDialogHostObserver,
-                    observer_list_,
-                    OnPositionRequiresUpdate());
-}
-
-// WidgetDelegate implementation.
-
-void NativeAppWindowViews::OnWidgetMove() {
-  app_window_->OnNativeWindowChanged();
-}
-
-views::View* NativeAppWindowViews::GetInitiallyFocusedView() {
-  return web_view_;
-}
-
-bool NativeAppWindowViews::CanResize() const {
-  return resizable_ && !size_constraints_.HasFixedSize() &&
-         !WidgetHasHitTestMask();
-}
-
-bool NativeAppWindowViews::CanMaximize() const {
-  return resizable_ && !size_constraints_.HasMaximumSize() &&
-         !app_window_->window_type_is_panel() && !WidgetHasHitTestMask();
-}
-
-base::string16 NativeAppWindowViews::GetWindowTitle() const {
-  return app_window_->GetTitle();
-}
-
-bool NativeAppWindowViews::ShouldShowWindowTitle() const {
-  return app_window_->window_type() == AppWindow::WINDOW_TYPE_V1_PANEL;
-}
-
-bool NativeAppWindowViews::ShouldShowWindowIcon() const {
-  return app_window_->window_type() == AppWindow::WINDOW_TYPE_V1_PANEL;
-}
-
-void NativeAppWindowViews::SaveWindowPlacement(const gfx::Rect& bounds,
-                                               ui::WindowShowState show_state) {
-  views::WidgetDelegate::SaveWindowPlacement(bounds, show_state);
-  app_window_->OnNativeWindowChanged();
-}
-
-void NativeAppWindowViews::DeleteDelegate() {
-  widget_->RemoveObserver(this);
-  app_window_->OnNativeClose();
-}
-
-views::Widget* NativeAppWindowViews::GetWidget() { return widget_; }
-
-const views::Widget* NativeAppWindowViews::GetWidget() const { return widget_; }
-
-views::View* NativeAppWindowViews::GetContentsView() {
-  return this;
-}
-
-bool NativeAppWindowViews::ShouldDescendIntoChildForEventHandling(
-    gfx::NativeView child,
-    const gfx::Point& location) {
-#if defined(USE_AURA)
-  if (child->Contains(web_view_->web_contents()->GetNativeView())) {
-    // App window should claim mouse events that fall within the draggable
-    // region.
-    return !draggable_region_.get() ||
-           !draggable_region_->contains(location.x(), location.y());
-  }
-#endif
-
-  return true;
-}
-
-// WidgetObserver implementation.
-
-void NativeAppWindowViews::OnWidgetVisibilityChanged(views::Widget* widget,
-                                                     bool visible) {
-  app_window_->OnNativeWindowChanged();
-}
-
-void NativeAppWindowViews::OnWidgetActivationChanged(views::Widget* widget,
-                                                     bool active) {
-  app_window_->OnNativeWindowChanged();
-  if (active)
-    app_window_->OnNativeWindowActivated();
-}
-
-// WebContentsObserver implementation.
-
-void NativeAppWindowViews::RenderViewCreated(
-    content::RenderViewHost* render_view_host) {
-  if (app_window_->requested_alpha_enabled() && CanHaveAlphaEnabled()) {
-    content::RenderWidgetHostView* view = render_view_host->GetView();
-    DCHECK(view);
-    view->SetBackgroundOpaque(false);
-  }
-}
-
-void NativeAppWindowViews::RenderViewHostChanged(
-    content::RenderViewHost* old_host,
-    content::RenderViewHost* new_host) {
-  OnViewWasResized();
-}
-
-// views::View implementation.
-
-void NativeAppWindowViews::Layout() {
-  DCHECK(web_view_);
-  web_view_->SetBounds(0, 0, width(), height());
-  OnViewWasResized();
-}
-
-void NativeAppWindowViews::ViewHierarchyChanged(
-    const ViewHierarchyChangedDetails& details) {
-  if (details.is_add && details.child == this) {
-    web_view_ = new views::WebView(NULL);
-    AddChildView(web_view_);
-    web_view_->SetWebContents(app_window_->web_contents());
-  }
-}
-
-gfx::Size NativeAppWindowViews::GetMinimumSize() const {
-  return size_constraints_.GetMinimumSize();
-}
-
-gfx::Size NativeAppWindowViews::GetMaximumSize() const {
-  return size_constraints_.GetMaximumSize();
-}
-
-void NativeAppWindowViews::OnFocus() {
-  web_view_->RequestFocus();
-}
-
-// NativeAppWindow implementation.
-
-void NativeAppWindowViews::SetFullscreen(int fullscreen_types) {
-  // Stub implementation. See also ChromeNativeAppWindowViews.
-  widget_->SetFullscreen(fullscreen_types != AppWindow::FULLSCREEN_TYPE_NONE);
-}
-
-bool NativeAppWindowViews::IsFullscreenOrPending() const {
-  // Stub implementation. See also ChromeNativeAppWindowViews.
-  return widget_->IsFullscreen();
-}
-
-void NativeAppWindowViews::UpdateWindowIcon() { widget_->UpdateWindowIcon(); }
-
-void NativeAppWindowViews::UpdateWindowTitle() { widget_->UpdateWindowTitle(); }
-
-void NativeAppWindowViews::UpdateBadgeIcon() {
-  // Stub implementation. See also ChromeNativeAppWindowViews.
-}
-
-void NativeAppWindowViews::UpdateDraggableRegions(
-    const std::vector<extensions::DraggableRegion>& regions) {
-  // Draggable region is not supported for non-frameless window.
-  if (!frameless_)
-    return;
-
-  draggable_region_.reset(AppWindow::RawDraggableRegionsToSkRegion(regions));
-  OnViewWasResized();
-}
-
-SkRegion* NativeAppWindowViews::GetDraggableRegion() {
-  return draggable_region_.get();
-}
-
-void NativeAppWindowViews::UpdateShape(scoped_ptr<SkRegion> region) {
-  // Stub implementation. See also ChromeNativeAppWindowViews.
-}
-
-void NativeAppWindowViews::HandleKeyboardEvent(
-    const content::NativeWebKeyboardEvent& event) {
-  unhandled_keyboard_event_handler_.HandleKeyboardEvent(event,
-                                                        GetFocusManager());
-}
-
-bool NativeAppWindowViews::IsFrameless() const { return frameless_; }
-
-bool NativeAppWindowViews::HasFrameColor() const { return false; }
-
-SkColor NativeAppWindowViews::ActiveFrameColor() const {
-  return SK_ColorBLACK;
-}
-
-SkColor NativeAppWindowViews::InactiveFrameColor() const {
-  return SK_ColorBLACK;
-}
-
-gfx::Insets NativeAppWindowViews::GetFrameInsets() const {
-  if (frameless_)
-    return gfx::Insets();
-
-  // The pretend client_bounds passed in need to be large enough to ensure that
-  // GetWindowBoundsForClientBounds() doesn't decide that it needs more than
-  // the specified amount of space to fit the window controls in, and return a
-  // number larger than the real frame insets. Most window controls are smaller
-  // than 1000x1000px, so this should be big enough.
-  gfx::Rect client_bounds = gfx::Rect(1000, 1000);
-  gfx::Rect window_bounds =
-      widget_->non_client_view()->GetWindowBoundsForClientBounds(client_bounds);
-  return window_bounds.InsetsFrom(client_bounds);
-}
-
-void NativeAppWindowViews::HideWithApp() {}
-
-void NativeAppWindowViews::ShowWithApp() {}
-
-void NativeAppWindowViews::UpdateShelfMenu() {}
-
-gfx::Size NativeAppWindowViews::GetContentMinimumSize() const {
-  return size_constraints_.GetMinimumSize();
-}
-
-gfx::Size NativeAppWindowViews::GetContentMaximumSize() const {
-  return size_constraints_.GetMaximumSize();
-}
-
-void NativeAppWindowViews::SetContentSizeConstraints(
-    const gfx::Size& min_size, const gfx::Size& max_size) {
-  size_constraints_.set_minimum_size(min_size);
-  size_constraints_.set_maximum_size(max_size);
-  widget_->OnSizeConstraintsChanged();
-}
-
-bool NativeAppWindowViews::CanHaveAlphaEnabled() const {
-  return widget_->IsTranslucentWindowOpacitySupported();
-}
-
-void NativeAppWindowViews::SetVisibleOnAllWorkspaces(bool always_visible) {
-  widget_->SetVisibleOnAllWorkspaces(always_visible);
-}
-
-}  // namespace apps