electron/atom/browser/ui/win/atom_desktop_native_widget_aura.cc

// Copyright (c) 2017 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.

#include "atom/browser/ui/win/atom_desktop_native_widget_aura.h"
#include "ui/views/corewm/tooltip_controller.h"
#include "ui/wm/public/tooltip_client.h"

namespace atom {

AtomDesktopNativeWidgetAura::AtomDesktopNativeWidgetAura(
    views::internal::NativeWidgetDelegate* delegate)
    : views::DesktopNativeWidgetAura(delegate) {
  // This is to enable the override of OnWindowActivated
  wm::SetActivationChangeObserver(GetNativeWindow(), this);
}

void AtomDesktopNativeWidgetAura::Activate() {
  // Activate can cause the focused window to be blurred so only
  // call when the window being activated is visible. This prevents
  // hidden windows from blurring the focused window when created.
  if (IsVisible())
    views::DesktopNativeWidgetAura::Activate();
}

void AtomDesktopNativeWidgetAura::OnWindowActivated(
    wm::ActivationChangeObserver::ActivationReason reason,
    aura::Window* gained_active,
    aura::Window* lost_active) {
  views::DesktopNativeWidgetAura::OnWindowActivated(reason, gained_active,
                                                    lost_active);
  if (lost_active != nullptr) {
    auto* tooltip_controller = static_cast<views::corewm::TooltipController*>(
        wm::GetTooltipClient(lost_active->GetRootWindow()));

    // This will cause the tooltip to be hidden when a window is deactivated,
    // as it should be.
    // TODO(brenca): Remove this fix when the chromium issue is fixed.
    // crbug.com/724538
    if (tooltip_controller != nullptr)
      tooltip_controller->OnCancelMode(nullptr);
  }
}

}  // namespace atom