| // Copyright (c) 2012 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/accelerators/ash_focus_manager_factory.h" |
| |
| #include <memory> |
| |
| #include "ash/accelerators/accelerator_controller_impl.h" |
| #include "ash/magnifier/docked_magnifier_controller_impl.h" |
| #include "ash/magnifier/magnification_controller.h" |
| #include "ash/shell.h" |
| #include "ui/base/ime/text_input_client.h" |
| #include "ui/views/focus/focus_manager.h" |
| #include "ui/views/focus/focus_manager_delegate.h" |
| #include "ui/views/view.h" |
| |
| namespace ash { |
| namespace { |
| |
| // As the name implies, this class is responsible for handling accelerators |
| // *after* pre-target accelerators and after the target is given a chance to |
| // process the accelerator. |
| class PostTargetAcceleratorHandler : public views::FocusManagerDelegate { |
| public: |
| PostTargetAcceleratorHandler() = default; |
| ~PostTargetAcceleratorHandler() override = default; |
| |
| // views::FocusManagerDelegate overrides: |
| bool ProcessAccelerator(const ui::Accelerator& accelerator) override; |
| void OnDidChangeFocus(views::View* focused_before, |
| views::View* focused_now) override; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(PostTargetAcceleratorHandler); |
| }; |
| |
| bool PostTargetAcceleratorHandler::ProcessAccelerator( |
| const ui::Accelerator& accelerator) { |
| AcceleratorController* controller = Shell::Get()->accelerator_controller(); |
| return controller && controller->Process(accelerator); |
| } |
| |
| void PostTargetAcceleratorHandler::OnDidChangeFocus(views::View* focused_before, |
| views::View* focused_now) { |
| // TODO: seems as though this code should live closer to magnification code. |
| if (!focused_now || focused_now == focused_before) |
| return; |
| |
| const gfx::Rect bounds_in_screen = focused_now->GetBoundsInScreen(); |
| if (bounds_in_screen.IsEmpty()) |
| return; |
| |
| // Note that both magnifiers are mutually exclusive. |
| DockedMagnifierControllerImpl* docked_magnifier = |
| Shell::Get()->docked_magnifier_controller(); |
| MagnificationController* fullscreen_magnifier = |
| Shell::Get()->magnification_controller(); |
| |
| gfx::Point point_of_interest = bounds_in_screen.CenterPoint(); |
| const ui::InputMethod* input_method = focused_now->GetInputMethod(); |
| const bool docked_magnifier_enabled = docked_magnifier->GetEnabled(); |
| if (input_method && input_method->GetTextInputClient() && |
| input_method->GetTextInputClient()->GetTextInputType() != |
| ui::TEXT_INPUT_TYPE_NONE) { |
| // If this view is a text input client with valid caret bounds, forward it |
| // to the enabled magnifier as an |OnCaretBoundsChanged()| event, since the |
| // magnifiers might have special handling for caret events. |
| const gfx::Rect caret_bounds = |
| input_method->GetTextInputClient()->GetCaretBounds(); |
| // Note: Don't use Rect::IsEmpty() for the below check as in many cases the |
| // caret can have a zero width or height, but still be valid. |
| if (caret_bounds.width() || caret_bounds.height()) { |
| if (docked_magnifier_enabled) { |
| docked_magnifier->OnCaretBoundsChanged( |
| input_method->GetTextInputClient()); |
| } else if (fullscreen_magnifier->IsEnabled()) { |
| fullscreen_magnifier->OnCaretBoundsChanged( |
| input_method->GetTextInputClient()); |
| } |
| |
| return; |
| } |
| |
| // If the caret bounds are unavailable, then use the view's top left corner |
| // as the point of interest. |
| point_of_interest = bounds_in_screen.origin(); |
| } |
| |
| if (docked_magnifier_enabled) |
| docked_magnifier->CenterOnPoint(point_of_interest); |
| else if (fullscreen_magnifier->IsEnabled()) |
| fullscreen_magnifier->CenterOnPoint(point_of_interest); |
| } |
| |
| } // namespace |
| |
| AshFocusManagerFactory::AshFocusManagerFactory() = default; |
| AshFocusManagerFactory::~AshFocusManagerFactory() = default; |
| |
| std::unique_ptr<views::FocusManager> AshFocusManagerFactory::CreateFocusManager( |
| views::Widget* widget) { |
| return std::make_unique<views::FocusManager>( |
| widget, std::make_unique<PostTargetAcceleratorHandler>()); |
| } |
| |
| } // namespace ash |