| // 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 "ui/chromeos/events/event_rewriter_chromeos.h" |
| |
| #include <stddef.h> |
| |
| #include <vector> |
| |
| #include "base/command_line.h" |
| #include "base/logging.h" |
| #include "base/stl_util.h" |
| #include "base/strings/string_number_conversions.h" |
| #include "base/strings/string_split.h" |
| #include "base/strings/string_util.h" |
| #include "base/system/sys_info.h" |
| #include "chromeos/constants/chromeos_switches.h" |
| #include "device/udev_linux/scoped_udev.h" |
| #include "ui/base/ime/chromeos/ime_keyboard.h" |
| #include "ui/base/ime/chromeos/input_method_manager.h" |
| #include "ui/chromeos/events/modifier_key.h" |
| #include "ui/chromeos/events/pref_names.h" |
| #include "ui/events/devices/input_device_manager.h" |
| #include "ui/events/event.h" |
| #include "ui/events/event_utils.h" |
| #include "ui/events/keycodes/dom/dom_code.h" |
| #include "ui/events/keycodes/dom/dom_key.h" |
| #include "ui/events/keycodes/dom/keycode_converter.h" |
| #include "ui/events/keycodes/keyboard_code_conversion.h" |
| |
| namespace ui { |
| |
| namespace { |
| |
| // Hotrod controller vendor/product ids. |
| const int kHotrodRemoteVendorId = 0x0471; |
| const int kHotrodRemoteProductId = 0x21cc; |
| const int kUnknownVendorId = -1; |
| const int kUnknownProductId = -1; |
| |
| // Table of properties of remappable keys and/or remapping targets (not |
| // strictly limited to "modifiers"). |
| // |
| // This is used in two distinct ways: for rewriting key up/down events, |
| // and for rewriting modifier EventFlags on any kind of event. |
| // |
| // For the first case, rewriting key up/down events, |RewriteModifierKeys()| |
| // determines the preference name |prefs::kLanguageRemap...KeyTo| for the |
| // incoming key and, using |GetRemappedKey()|, gets the user preference |
| // value |input_method::k...Key| for the incoming key, and finally finds that |
| // value in this table to obtain the |result| properties of the target key. |
| // |
| // For the second case, rewriting modifier EventFlags, |
| // |GetRemappedModifierMasks()| processes every table entry whose |flag| |
| // is set in the incoming event. Using the |pref_name| in the table entry, |
| // it likewise uses |GetRemappedKey()| to find the properties of the |
| // user preference target key, and replaces the flag accordingly. |
| const struct ModifierRemapping { |
| int flag; |
| ui::chromeos::ModifierKey remap_to; |
| const char* pref_name; |
| EventRewriterChromeOS::MutableKeyState result; |
| } kModifierRemappings[] = { |
| {// kModifierRemappingCtrl references this entry by index. |
| ui::EF_CONTROL_DOWN, |
| ui::chromeos::ModifierKey::kControlKey, |
| prefs::kLanguageRemapControlKeyTo, |
| {ui::EF_CONTROL_DOWN, ui::DomCode::CONTROL_LEFT, ui::DomKey::CONTROL, |
| ui::VKEY_CONTROL}}, |
| {// kModifierRemappingNeoMod3 references this entry by index. |
| ui::EF_MOD3_DOWN | ui::EF_ALTGR_DOWN, |
| ui::chromeos::ModifierKey::kNumModifierKeys, |
| nullptr, |
| {ui::EF_MOD3_DOWN | ui::EF_ALTGR_DOWN, ui::DomCode::CAPS_LOCK, |
| ui::DomKey::ALT_GRAPH, ui::VKEY_ALTGR}}, |
| {ui::EF_COMMAND_DOWN, |
| ui::chromeos::ModifierKey::kSearchKey, |
| prefs::kLanguageRemapSearchKeyTo, |
| {ui::EF_COMMAND_DOWN, ui::DomCode::META_LEFT, ui::DomKey::META, |
| ui::VKEY_LWIN}}, |
| {ui::EF_ALT_DOWN, |
| ui::chromeos::ModifierKey::kAltKey, |
| prefs::kLanguageRemapAltKeyTo, |
| {ui::EF_ALT_DOWN, ui::DomCode::ALT_LEFT, ui::DomKey::ALT, ui::VKEY_MENU}}, |
| {ui::EF_NONE, |
| ui::chromeos::ModifierKey::kVoidKey, |
| nullptr, |
| {ui::EF_NONE, ui::DomCode::NONE, ui::DomKey::NONE, ui::VKEY_UNKNOWN}}, |
| {ui::EF_MOD3_DOWN, |
| ui::chromeos::ModifierKey::kCapsLockKey, |
| prefs::kLanguageRemapCapsLockKeyTo, |
| {ui::EF_MOD3_DOWN, ui::DomCode::CAPS_LOCK, ui::DomKey::CAPS_LOCK, |
| ui::VKEY_CAPITAL}}, |
| {ui::EF_NONE, |
| ui::chromeos::ModifierKey::kEscapeKey, |
| prefs::kLanguageRemapEscapeKeyTo, |
| {ui::EF_NONE, ui::DomCode::ESCAPE, ui::DomKey::ESCAPE, ui::VKEY_ESCAPE}}, |
| {ui::EF_NONE, |
| ui::chromeos::ModifierKey::kBackspaceKey, |
| prefs::kLanguageRemapBackspaceKeyTo, |
| {ui::EF_NONE, ui::DomCode::BACKSPACE, ui::DomKey::BACKSPACE, |
| ui::VKEY_BACK}}, |
| {ui::EF_NONE, |
| ui::chromeos::ModifierKey::kNumModifierKeys, |
| prefs::kLanguageRemapDiamondKeyTo, |
| {ui::EF_NONE, ui::DomCode::F15, ui::DomKey::F15, ui::VKEY_F15}}}; |
| |
| const ModifierRemapping* kModifierRemappingCtrl = &kModifierRemappings[0]; |
| const ModifierRemapping* kModifierRemappingNeoMod3 = &kModifierRemappings[1]; |
| |
| // Gets a remapped key for |pref_name| key. For example, to find out which |
| // key Ctrl is currently remapped to, call the function with |
| // prefs::kLanguageRemapControlKeyTo. |
| // Note: For the Search key, call GetSearchRemappedKey(). |
| const ModifierRemapping* GetRemappedKey( |
| const std::string& pref_name, |
| EventRewriterChromeOS::Delegate* delegate) { |
| if (!delegate) |
| return nullptr; |
| |
| int value = -1; |
| if (!delegate->GetKeyboardRemappedPrefValue(pref_name, &value)) |
| return nullptr; |
| |
| for (auto& remapping : kModifierRemappings) { |
| if (value == static_cast<int>(remapping.remap_to)) |
| return &remapping; |
| } |
| |
| return nullptr; |
| } |
| |
| // Gets a remapped key for the Search key based on the |keyboard_type| of the |
| // last event. Internal Search key, Command key on external Apple keyboards, and |
| // Meta key (either Search or Windows) on external non-Apple keyboards can all |
| // be remapped separately. |
| const ModifierRemapping* GetSearchRemappedKey( |
| EventRewriterChromeOS::Delegate* delegate, |
| EventRewriterChromeOS::DeviceType keyboard_type) { |
| std::string pref_name; |
| switch (keyboard_type) { |
| case EventRewriterChromeOS::kDeviceAppleKeyboard: |
| pref_name = prefs::kLanguageRemapExternalCommandKeyTo; |
| break; |
| |
| case EventRewriterChromeOS::kDeviceExternalNonAppleKeyboard: |
| case EventRewriterChromeOS::kDeviceExternalUnknown: |
| pref_name = prefs::kLanguageRemapExternalMetaKeyTo; |
| break; |
| |
| default: |
| // Use the preference for internal Search key remapping. |
| pref_name = prefs::kLanguageRemapSearchKeyTo; |
| break; |
| } |
| |
| return GetRemappedKey(pref_name, delegate); |
| } |
| |
| bool HasDiamondKey() { |
| return base::CommandLine::ForCurrentProcess()->HasSwitch( |
| ::chromeos::switches::kHasChromeOSDiamondKey); |
| } |
| |
| bool IsISOLevel5ShiftUsedByCurrentInputMethod() { |
| // Since both German Neo2 XKB layout and Caps Lock depend on Mod3Mask, |
| // it's not possible to make both features work. For now, we don't remap |
| // Mod3Mask when Neo2 is in use. |
| // TODO(yusukes): Remove the restriction. |
| ::chromeos::input_method::InputMethodManager* manager = |
| ::chromeos::input_method::InputMethodManager::Get(); |
| return manager->IsISOLevel5ShiftUsedByCurrentInputMethod(); |
| } |
| |
| struct KeyboardRemapping { |
| // MatchKeyboardRemapping() succeeds if the tested has all of the specified |
| // flags (and possibly other flags), and either the key_code matches or the |
| // condition's key_code is VKEY_UNKNOWN. |
| struct Condition { |
| int flags; |
| ui::KeyboardCode key_code; |
| } condition; |
| // ApplyRemapping(), which is the primary user of this structure, |
| // conditionally sets the output fields from the |result| here. |
| // - |dom_code| is set if |result.dom_code| is not NONE. |
| // - |dom_key| and |character| are set if |result.dom_key| is not NONE. |
| // -|key_code| is set if |result.key_code| is not VKEY_UNKNOWN. |
| // - |flags| are always set from |result.flags|, but this can be |EF_NONE|. |
| EventRewriterChromeOS::MutableKeyState result; |
| }; |
| |
| bool MatchKeyboardRemapping( |
| const EventRewriterChromeOS::MutableKeyState& suspect, |
| const KeyboardRemapping::Condition& test) { |
| return ((test.key_code == ui::VKEY_UNKNOWN) || |
| (test.key_code == suspect.key_code)) && |
| ((suspect.flags & test.flags) == test.flags); |
| } |
| |
| void ApplyRemapping(const EventRewriterChromeOS::MutableKeyState& changes, |
| EventRewriterChromeOS::MutableKeyState* state) { |
| state->flags |= changes.flags; |
| if (changes.code != ui::DomCode::NONE) |
| state->code = changes.code; |
| if (changes.key != ui::DomKey::NONE) |
| state->key = changes.key; |
| if (changes.key_code != ui::VKEY_UNKNOWN) |
| state->key_code = changes.key_code; |
| } |
| |
| // Given a set of KeyboardRemapping structs, finds a matching struct |
| // if possible, and updates the remapped event values. Returns true if a |
| // remapping was found and remapped values were updated. |
| bool RewriteWithKeyboardRemappings( |
| const KeyboardRemapping* mappings, |
| size_t num_mappings, |
| const EventRewriterChromeOS::MutableKeyState& input_state, |
| EventRewriterChromeOS::MutableKeyState* remapped_state) { |
| for (size_t i = 0; i < num_mappings; ++i) { |
| const KeyboardRemapping& map = mappings[i]; |
| if (MatchKeyboardRemapping(input_state, map.condition)) { |
| remapped_state->flags = (input_state.flags & ~map.condition.flags); |
| ApplyRemapping(map.result, remapped_state); |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| void SetMeaningForLayout(ui::EventType type, |
| EventRewriterChromeOS::MutableKeyState* state) { |
| // Currently layout is applied by creating a temporary key event with the |
| // current physical state, and extracting the layout results. |
| ui::KeyEvent key(type, state->key_code, state->code, state->flags); |
| state->key = key.GetDomKey(); |
| } |
| |
| ui::DomCode RelocateModifier(ui::DomCode code, ui::DomKeyLocation location) { |
| bool right = (location == ui::DomKeyLocation::RIGHT); |
| switch (code) { |
| case ui::DomCode::CONTROL_LEFT: |
| case ui::DomCode::CONTROL_RIGHT: |
| return right ? ui::DomCode::CONTROL_RIGHT : ui::DomCode::CONTROL_LEFT; |
| case ui::DomCode::SHIFT_LEFT: |
| case ui::DomCode::SHIFT_RIGHT: |
| return right ? ui::DomCode::SHIFT_RIGHT : ui::DomCode::SHIFT_LEFT; |
| case ui::DomCode::ALT_LEFT: |
| case ui::DomCode::ALT_RIGHT: |
| return right ? ui::DomCode::ALT_RIGHT : ui::DomCode::ALT_LEFT; |
| case ui::DomCode::META_LEFT: |
| case ui::DomCode::META_RIGHT: |
| return right ? ui::DomCode::META_RIGHT : ui::DomCode::META_LEFT; |
| default: |
| break; |
| } |
| return code; |
| } |
| |
| // Returns true if |mouse_event| was generated from a touchpad device. |
| bool IsFromTouchpadDevice(const ui::MouseEvent& mouse_event) { |
| for (const ui::InputDevice& touchpad : |
| ui::InputDeviceManager::GetInstance()->GetTouchpadDevices()) { |
| if (touchpad.id == mouse_event.source_device_id()) |
| return true; |
| } |
| |
| return false; |
| } |
| |
| } // namespace |
| |
| EventRewriterChromeOS::EventRewriterChromeOS( |
| Delegate* delegate, |
| ui::EventRewriter* sticky_keys_controller) |
| : last_keyboard_device_id_(ui::ED_UNKNOWN_DEVICE), |
| ime_keyboard_for_testing_(nullptr), |
| delegate_(delegate), |
| sticky_keys_controller_(sticky_keys_controller), |
| pressed_modifier_latches_(ui::EF_NONE), |
| latched_modifier_latches_(ui::EF_NONE), |
| used_modifier_latches_(ui::EF_NONE) {} |
| |
| EventRewriterChromeOS::~EventRewriterChromeOS() {} |
| |
| // static |
| EventRewriterChromeOS::DeviceType EventRewriterChromeOS::GetDeviceType( |
| const ui::InputDevice& keyboard_device) { |
| if (keyboard_device.vendor_id == kHotrodRemoteVendorId && |
| keyboard_device.product_id == kHotrodRemoteProductId) { |
| return EventRewriterChromeOS::kDeviceHotrodRemote; |
| } |
| |
| if (base::LowerCaseEqualsASCII(keyboard_device.name, |
| "virtual core keyboard")) { |
| return EventRewriterChromeOS::kDeviceVirtualCoreKeyboard; |
| } |
| |
| const std::vector<std::string> tokens = |
| base::SplitString(keyboard_device.name, " .", base::KEEP_WHITESPACE, |
| base::SPLIT_WANT_NONEMPTY); |
| |
| // If the |device_name| contains the two words, "apple" and "keyboard", treat |
| // it as an Apple keyboard. |
| bool found_apple = false; |
| bool found_keyboard = false; |
| for (size_t i = 0; i < tokens.size(); ++i) { |
| if (!found_apple && base::LowerCaseEqualsASCII(tokens[i], "apple")) |
| found_apple = true; |
| if (!found_keyboard && base::LowerCaseEqualsASCII(tokens[i], "keyboard")) |
| found_keyboard = true; |
| if (found_apple && found_keyboard) |
| return EventRewriterChromeOS::kDeviceAppleKeyboard; |
| } |
| |
| if (!found_apple && (keyboard_device.type == INPUT_DEVICE_USB || |
| keyboard_device.type == INPUT_DEVICE_BLUETOOTH)) { |
| // ui::InputDevice is a generic input device, and we're not sure if it's |
| // actually a keyboard. |
| return found_keyboard |
| ? EventRewriterChromeOS::kDeviceExternalNonAppleKeyboard |
| : EventRewriterChromeOS::kDeviceExternalUnknown; |
| } |
| |
| return EventRewriterChromeOS::kDeviceUnknown; |
| } |
| |
| void EventRewriterChromeOS::KeyboardDeviceAddedForTesting( |
| int device_id, |
| const std::string& device_name, |
| KeyboardTopRowLayout layout, |
| InputDeviceType device_type) { |
| // Tests must avoid XI2 reserved device IDs. |
| DCHECK((device_id < 0) || (device_id > 1)); |
| InputDevice keyboard_device(device_id, device_type, device_name); |
| keyboard_device.vendor_id = kUnknownVendorId; |
| keyboard_device.product_id = kUnknownProductId; |
| KeyboardDeviceAddedInternal(device_id, GetDeviceType(keyboard_device), |
| layout); |
| } |
| |
| void EventRewriterChromeOS::RewriteMouseButtonEventForTesting( |
| const ui::MouseEvent& event, |
| std::unique_ptr<ui::Event>* rewritten_event) { |
| RewriteMouseButtonEvent(event, rewritten_event); |
| } |
| |
| ui::EventRewriteStatus EventRewriterChromeOS::RewriteEvent( |
| const ui::Event& event, |
| std::unique_ptr<ui::Event>* rewritten_event) { |
| if ((event.type() == ui::ET_KEY_PRESSED) || |
| (event.type() == ui::ET_KEY_RELEASED)) { |
| return RewriteKeyEvent(static_cast<const ui::KeyEvent&>(event), |
| rewritten_event); |
| } |
| if ((event.type() == ui::ET_MOUSE_PRESSED) || |
| (event.type() == ui::ET_MOUSE_RELEASED)) { |
| return RewriteMouseButtonEvent(static_cast<const ui::MouseEvent&>(event), |
| rewritten_event); |
| } |
| if (event.type() == ui::ET_MOUSEWHEEL) { |
| return RewriteMouseWheelEvent( |
| static_cast<const ui::MouseWheelEvent&>(event), rewritten_event); |
| } |
| if ((event.type() == ui::ET_TOUCH_PRESSED) || |
| (event.type() == ui::ET_TOUCH_RELEASED)) { |
| return RewriteTouchEvent(static_cast<const ui::TouchEvent&>(event), |
| rewritten_event); |
| } |
| if (event.IsScrollEvent()) { |
| return RewriteScrollEvent(static_cast<const ui::ScrollEvent&>(event), |
| rewritten_event); |
| } |
| return ui::EVENT_REWRITE_CONTINUE; |
| } |
| |
| ui::EventRewriteStatus EventRewriterChromeOS::NextDispatchEvent( |
| const ui::Event& last_event, |
| std::unique_ptr<ui::Event>* new_event) { |
| if (sticky_keys_controller_) { |
| // In the case of sticky keys, we know what the events obtained here are: |
| // modifier key releases that match the ones previously discarded. So, we |
| // know that they don't have to be passed through the post-sticky key |
| // rewriting phases, |RewriteExtendedKeys()| and |RewriteFunctionKeys()|, |
| // because those phases do nothing with modifier key releases. |
| return sticky_keys_controller_->NextDispatchEvent(last_event, new_event); |
| } |
| NOTREACHED(); |
| return ui::EVENT_REWRITE_CONTINUE; |
| } |
| |
| void EventRewriterChromeOS::BuildRewrittenKeyEvent( |
| const ui::KeyEvent& key_event, |
| const MutableKeyState& state, |
| std::unique_ptr<ui::Event>* rewritten_event) { |
| ui::KeyEvent* rewritten_key_event = |
| new ui::KeyEvent(key_event.type(), state.key_code, state.code, |
| state.flags, state.key, key_event.time_stamp()); |
| rewritten_event->reset(rewritten_key_event); |
| } |
| |
| // static |
| bool EventRewriterChromeOS::GetKeyboardTopRowLayout( |
| const base::FilePath& device_path, |
| KeyboardTopRowLayout* out_layout) { |
| device::ScopedUdevPtr udev(device::udev_new()); |
| if (!udev.get()) |
| return false; |
| |
| device::ScopedUdevDevicePtr device(device::udev_device_new_from_syspath( |
| udev.get(), device_path.value().c_str())); |
| if (!device.get()) |
| return false; |
| |
| const char kLayoutProperty[] = "CROS_KEYBOARD_TOP_ROW_LAYOUT"; |
| std::string layout = |
| device::UdevDeviceGetPropertyValue(device.get(), kLayoutProperty); |
| if (layout.empty()) { |
| *out_layout = EventRewriterChromeOS::kKbdTopRowLayoutDefault; |
| return true; |
| } |
| |
| int layout_id; |
| if (!base::StringToInt(layout, &layout_id)) { |
| LOG(WARNING) << "Failed to parse " << kLayoutProperty << " value '" |
| << layout << "'"; |
| return false; |
| } |
| if (layout_id < EventRewriterChromeOS::kKbdTopRowLayoutMin || |
| layout_id > EventRewriterChromeOS::kKbdTopRowLayoutMax) { |
| LOG(WARNING) << "Invalid " << kLayoutProperty << " '" << layout << "'"; |
| return false; |
| } |
| *out_layout = |
| static_cast<EventRewriterChromeOS::KeyboardTopRowLayout>(layout_id); |
| return true; |
| } |
| |
| void EventRewriterChromeOS::DeviceKeyPressedOrReleased(int device_id) { |
| const auto iter = device_id_to_info_.find(device_id); |
| DeviceType type; |
| if (iter != device_id_to_info_.end()) |
| type = iter->second.type; |
| else |
| type = KeyboardDeviceAdded(device_id); |
| |
| // Ignore virtual Xorg keyboard (magic that generates key repeat |
| // events). Pretend that the previous real keyboard is the one that is still |
| // in use. |
| if (type == kDeviceVirtualCoreKeyboard) |
| return; |
| |
| last_keyboard_device_id_ = device_id; |
| } |
| |
| bool EventRewriterChromeOS::IsHotrodRemote() const { |
| return IsLastKeyboardOfType(kDeviceHotrodRemote); |
| } |
| |
| bool EventRewriterChromeOS::IsLastKeyboardOfType(DeviceType device_type) const { |
| return GetLastKeyboardType() == device_type; |
| } |
| |
| EventRewriterChromeOS::DeviceType EventRewriterChromeOS::GetLastKeyboardType() |
| const { |
| if (last_keyboard_device_id_ == ui::ED_UNKNOWN_DEVICE) |
| return kDeviceUnknown; |
| |
| const auto iter = device_id_to_info_.find(last_keyboard_device_id_); |
| if (iter == device_id_to_info_.end()) { |
| LOG(ERROR) << "Device ID " << last_keyboard_device_id_ << " is unknown."; |
| return kDeviceUnknown; |
| } |
| |
| return iter->second.type; |
| } |
| |
| int EventRewriterChromeOS::GetRemappedModifierMasks(const ui::Event& event, |
| int original_flags) const { |
| int unmodified_flags = original_flags; |
| int rewritten_flags = pressed_modifier_latches_ | latched_modifier_latches_; |
| for (size_t i = 0; unmodified_flags && (i < base::size(kModifierRemappings)); |
| ++i) { |
| const ModifierRemapping* remapped_key = nullptr; |
| if (!(unmodified_flags & kModifierRemappings[i].flag)) |
| continue; |
| switch (kModifierRemappings[i].flag) { |
| case ui::EF_COMMAND_DOWN: |
| remapped_key = GetSearchRemappedKey(delegate_, GetLastKeyboardType()); |
| break; |
| case ui::EF_MOD3_DOWN: |
| // If EF_MOD3_DOWN is used by the current input method, leave it alone; |
| // it is not remappable. |
| if (IsISOLevel5ShiftUsedByCurrentInputMethod()) |
| continue; |
| // Otherwise, Mod3Mask is set on X events when the Caps Lock key |
| // is down, but, if Caps Lock is remapped, CapsLock is NOT set, |
| // because pressing the key does not invoke caps lock. So, the |
| // kModifierRemappings[] table uses EF_MOD3_DOWN for the Caps |
| // Lock remapping. |
| break; |
| case ui::EF_MOD3_DOWN | ui::EF_ALTGR_DOWN: |
| if ((original_flags & ui::EF_ALTGR_DOWN) && |
| IsISOLevel5ShiftUsedByCurrentInputMethod()) { |
| remapped_key = kModifierRemappingNeoMod3; |
| } |
| break; |
| default: |
| break; |
| } |
| if (!remapped_key && kModifierRemappings[i].pref_name) { |
| remapped_key = |
| GetRemappedKey(kModifierRemappings[i].pref_name, delegate_); |
| } |
| if (remapped_key) { |
| unmodified_flags &= ~kModifierRemappings[i].flag; |
| rewritten_flags |= remapped_key->flag; |
| } |
| } |
| return rewritten_flags | unmodified_flags; |
| } |
| |
| ui::EventRewriteStatus EventRewriterChromeOS::RewriteKeyEvent( |
| const ui::KeyEvent& key_event, |
| std::unique_ptr<ui::Event>* rewritten_event) { |
| if (delegate_ && delegate_->IsExtensionCommandRegistered(key_event.key_code(), |
| key_event.flags())) |
| return ui::EVENT_REWRITE_CONTINUE; |
| if (key_event.source_device_id() != ui::ED_UNKNOWN_DEVICE) |
| DeviceKeyPressedOrReleased(key_event.source_device_id()); |
| |
| // Drop repeated keys from Hotrod remote. |
| if ((key_event.flags() & ui::EF_IS_REPEAT) && |
| (key_event.type() == ui::ET_KEY_PRESSED) && IsHotrodRemote() && |
| key_event.key_code() != ui::VKEY_BACK) { |
| return ui::EVENT_REWRITE_DISCARD; |
| } |
| |
| MutableKeyState state = {key_event.flags(), key_event.code(), |
| key_event.GetDomKey(), key_event.key_code()}; |
| |
| // Do not rewrite an event sent by ui_controls::SendKeyPress(). See |
| // crbug.com/136465. |
| if (!(key_event.flags() & ui::EF_FINAL)) { |
| if (RewriteModifierKeys(key_event, &state)) { |
| // Early exit with completed event. |
| BuildRewrittenKeyEvent(key_event, state, rewritten_event); |
| return ui::EVENT_REWRITE_REWRITTEN; |
| } |
| RewriteNumPadKeys(key_event, &state); |
| } |
| |
| ui::EventRewriteStatus status = ui::EVENT_REWRITE_CONTINUE; |
| bool is_sticky_key_extension_command = false; |
| if (sticky_keys_controller_) { |
| auto tmp_event = key_event; |
| tmp_event.set_key_code(state.key_code); |
| tmp_event.set_flags(state.flags); |
| std::unique_ptr<ui::Event> output_event; |
| status = sticky_keys_controller_->RewriteEvent(tmp_event, &output_event); |
| if (status == ui::EVENT_REWRITE_REWRITTEN || |
| status == ui::EVENT_REWRITE_DISPATCH_ANOTHER) |
| state.flags = output_event->flags(); |
| if (status == ui::EVENT_REWRITE_DISCARD) |
| return ui::EVENT_REWRITE_DISCARD; |
| is_sticky_key_extension_command = |
| delegate_ && |
| delegate_->IsExtensionCommandRegistered(state.key_code, state.flags); |
| } |
| |
| // If flags have changed, this may change the interpretation of the key, |
| // so reapply layout. |
| if (state.flags != key_event.flags()) |
| SetMeaningForLayout(key_event.type(), &state); |
| |
| // If sticky key rewrites the event, and it matches an extension command, do |
| // not further rewrite the event since it won't match the extension command |
| // thereafter. |
| if (!is_sticky_key_extension_command && !(key_event.flags() & ui::EF_FINAL)) { |
| RewriteExtendedKeys(key_event, &state); |
| RewriteFunctionKeys(key_event, &state); |
| } |
| if ((key_event.flags() == state.flags) && |
| (key_event.key_code() == state.key_code) && |
| (status == ui::EVENT_REWRITE_CONTINUE)) { |
| return ui::EVENT_REWRITE_CONTINUE; |
| } |
| // Sticky keys may have returned a result other than |EVENT_REWRITE_CONTINUE|, |
| // in which case we need to preserve that return status. Alternatively, we |
| // might be here because key_event changed, in which case we need to |
| // return |EVENT_REWRITE_REWRITTEN|. |
| if (status == ui::EVENT_REWRITE_CONTINUE) |
| status = ui::EVENT_REWRITE_REWRITTEN; |
| BuildRewrittenKeyEvent(key_event, state, rewritten_event); |
| return status; |
| } |
| |
| ui::EventRewriteStatus EventRewriterChromeOS::RewriteMouseButtonEvent( |
| const ui::MouseEvent& mouse_event, |
| std::unique_ptr<ui::Event>* rewritten_event) { |
| int flags = mouse_event.flags(); |
| RewriteLocatedEvent(mouse_event, &flags); |
| ui::EventRewriteStatus status = ui::EVENT_REWRITE_CONTINUE; |
| if (sticky_keys_controller_) { |
| auto tmp_event = mouse_event; |
| tmp_event.set_flags(flags); |
| std::unique_ptr<ui::Event> output_event; |
| status = sticky_keys_controller_->RewriteEvent(tmp_event, &output_event); |
| if (status == ui::EVENT_REWRITE_REWRITTEN || |
| status == ui::EVENT_REWRITE_DISPATCH_ANOTHER) |
| flags = output_event->flags(); |
| } |
| int changed_button = ui::EF_NONE; |
| if ((mouse_event.type() == ui::ET_MOUSE_PRESSED) || |
| (mouse_event.type() == ui::ET_MOUSE_RELEASED)) { |
| changed_button = RewriteModifierClick(mouse_event, &flags); |
| } |
| if ((mouse_event.flags() == flags) && |
| (status == ui::EVENT_REWRITE_CONTINUE)) { |
| return ui::EVENT_REWRITE_CONTINUE; |
| } |
| if (status == ui::EVENT_REWRITE_CONTINUE) |
| status = ui::EVENT_REWRITE_REWRITTEN; |
| ui::MouseEvent* rewritten_mouse_event = new ui::MouseEvent(mouse_event); |
| rewritten_event->reset(rewritten_mouse_event); |
| rewritten_mouse_event->set_flags(flags); |
| if (changed_button != ui::EF_NONE) |
| rewritten_mouse_event->set_changed_button_flags(changed_button); |
| return status; |
| } |
| |
| ui::EventRewriteStatus EventRewriterChromeOS::RewriteMouseWheelEvent( |
| const ui::MouseWheelEvent& wheel_event, |
| std::unique_ptr<ui::Event>* rewritten_event) { |
| if (!sticky_keys_controller_) |
| return ui::EVENT_REWRITE_CONTINUE; |
| int flags = wheel_event.flags(); |
| RewriteLocatedEvent(wheel_event, &flags); |
| auto tmp_event = wheel_event; |
| tmp_event.set_flags(flags); |
| ui::EventRewriteStatus status = |
| sticky_keys_controller_->RewriteEvent(tmp_event, rewritten_event); |
| |
| switch (status) { |
| case ui::EVENT_REWRITE_REWRITTEN: |
| case ui::EVENT_REWRITE_DISPATCH_ANOTHER: |
| // whell event has been rewritten and stored in |rewritten_event|. |
| break; |
| case ui::EVENT_REWRITE_CONTINUE: |
| if (flags != wheel_event.flags()) { |
| *rewritten_event = std::make_unique<ui::MouseWheelEvent>(wheel_event); |
| (*rewritten_event)->set_flags(flags); |
| status = ui::EVENT_REWRITE_REWRITTEN; |
| } |
| break; |
| case ui::EVENT_REWRITE_DISCARD: |
| NOTREACHED(); |
| break; |
| } |
| |
| return status; |
| } |
| |
| ui::EventRewriteStatus EventRewriterChromeOS::RewriteTouchEvent( |
| const ui::TouchEvent& touch_event, |
| std::unique_ptr<ui::Event>* rewritten_event) { |
| int flags = touch_event.flags(); |
| RewriteLocatedEvent(touch_event, &flags); |
| if (touch_event.flags() == flags) |
| return ui::EVENT_REWRITE_CONTINUE; |
| ui::TouchEvent* rewritten_touch_event = new ui::TouchEvent(touch_event); |
| rewritten_event->reset(rewritten_touch_event); |
| rewritten_touch_event->set_flags(flags); |
| return ui::EVENT_REWRITE_REWRITTEN; |
| } |
| |
| ui::EventRewriteStatus EventRewriterChromeOS::RewriteScrollEvent( |
| const ui::ScrollEvent& scroll_event, |
| std::unique_ptr<ui::Event>* rewritten_event) { |
| if (!sticky_keys_controller_) |
| return ui::EVENT_REWRITE_CONTINUE; |
| ui::EventRewriteStatus status = |
| sticky_keys_controller_->RewriteEvent(scroll_event, rewritten_event); |
| // Scroll event shouldn't be discarded. |
| DCHECK_NE(status, ui::EVENT_REWRITE_DISCARD); |
| return status; |
| } |
| |
| bool EventRewriterChromeOS::RewriteModifierKeys(const ui::KeyEvent& key_event, |
| MutableKeyState* state) { |
| DCHECK(key_event.type() == ui::ET_KEY_PRESSED || |
| key_event.type() == ui::ET_KEY_RELEASED); |
| |
| if (!delegate_ || !delegate_->RewriteModifierKeys()) |
| return false; |
| |
| // Preserve a copy of the original before rewriting |state| based on |
| // user preferences, device configuration, and certain IME properties. |
| MutableKeyState incoming = *state; |
| state->flags = ui::EF_NONE; |
| int characteristic_flag = ui::EF_NONE; |
| bool exact_event = false; |
| |
| // First, remap the key code. |
| const ModifierRemapping* remapped_key = nullptr; |
| // Remapping based on DomKey. |
| switch (incoming.key) { |
| // On Chrome OS, F15 (XF86XK_Launch6) with NumLock (Mod2Mask) is sent |
| // when Diamond key is pressed. |
| case ui::DomKey::F15: |
| // When diamond key is not available, the configuration UI for Diamond |
| // key is not shown. Therefore, ignore the kLanguageRemapDiamondKeyTo |
| // syncable pref. |
| if (HasDiamondKey()) |
| remapped_key = |
| GetRemappedKey(prefs::kLanguageRemapDiamondKeyTo, delegate_); |
| // Default behavior of F15 is Control, even if --has-chromeos-diamond-key |
| // is absent, according to unit test comments. |
| if (!remapped_key) { |
| DCHECK_EQ(ui::VKEY_CONTROL, kModifierRemappingCtrl->result.key_code); |
| remapped_key = kModifierRemappingCtrl; |
| } |
| break; |
| case ui::DomKey::ALT_GRAPH: |
| // The Neo2 codes modifiers such that CapsLock appears as VKEY_ALTGR, |
| // but AltGraph (right Alt) also appears as VKEY_ALTGR in Neo2, |
| // as it does in other layouts. Neo2's "Mod3" is represented in |
| // EventFlags by a combination of AltGr+Mod3, while its "Mod4" is |
| // AltGr alone. |
| if (IsISOLevel5ShiftUsedByCurrentInputMethod()) { |
| if (incoming.code == ui::DomCode::CAPS_LOCK) { |
| characteristic_flag = ui::EF_ALTGR_DOWN | ui::EF_MOD3_DOWN; |
| remapped_key = |
| GetRemappedKey(prefs::kLanguageRemapCapsLockKeyTo, delegate_); |
| } else { |
| characteristic_flag = ui::EF_ALTGR_DOWN; |
| remapped_key = GetSearchRemappedKey(delegate_, GetLastKeyboardType()); |
| } |
| } |
| if (remapped_key && remapped_key->result.key_code == ui::VKEY_CAPITAL) |
| remapped_key = kModifierRemappingNeoMod3; |
| break; |
| case ui::DomKey::ALT_GRAPH_LATCH: |
| if (key_event.type() == ui::ET_KEY_PRESSED) { |
| pressed_modifier_latches_ |= ui::EF_ALTGR_DOWN; |
| } else { |
| pressed_modifier_latches_ &= ~ui::EF_ALTGR_DOWN; |
| if (used_modifier_latches_ & ui::EF_ALTGR_DOWN) |
| used_modifier_latches_ &= ~ui::EF_ALTGR_DOWN; |
| else |
| latched_modifier_latches_ |= ui::EF_ALTGR_DOWN; |
| } |
| // Rewrite to AltGraph. When this key is used like a regular modifier, |
| // the web-exposed result looks like a use of the regular modifier. |
| // When it's used as a latch, the web-exposed result is a vacuous |
| // modifier press-and-release, which should be harmless, but preserves |
| // the event for applications using the |code| (e.g. remoting). |
| state->key = ui::DomKey::ALT_GRAPH; |
| state->key_code = ui::VKEY_ALTGR; |
| exact_event = true; |
| break; |
| default: |
| break; |
| } |
| |
| // Remapping based on DomCode. |
| switch (incoming.code) { |
| // On Chrome OS, XF86XK_Launch7 (F16) with Mod3Mask is sent when Caps Lock |
| // is pressed (with one exception: when |
| // IsISOLevel5ShiftUsedByCurrentInputMethod() is true, the key generates |
| // XK_ISO_Level3_Shift with Mod3Mask, not XF86XK_Launch7). |
| case ui::DomCode::F16: |
| case ui::DomCode::CAPS_LOCK: |
| // This key is already remapped to Mod3 in remapping based on DomKey. Skip |
| // more remapping. |
| if (IsISOLevel5ShiftUsedByCurrentInputMethod() && remapped_key) |
| break; |
| |
| characteristic_flag = ui::EF_CAPS_LOCK_ON; |
| remapped_key = |
| GetRemappedKey(prefs::kLanguageRemapCapsLockKeyTo, delegate_); |
| break; |
| case ui::DomCode::META_LEFT: |
| case ui::DomCode::META_RIGHT: |
| characteristic_flag = ui::EF_COMMAND_DOWN; |
| remapped_key = GetSearchRemappedKey(delegate_, GetLastKeyboardType()); |
| // Default behavior is Super key, hence don't remap the event if the pref |
| // is unavailable. |
| break; |
| case ui::DomCode::CONTROL_LEFT: |
| case ui::DomCode::CONTROL_RIGHT: |
| characteristic_flag = ui::EF_CONTROL_DOWN; |
| remapped_key = |
| GetRemappedKey(prefs::kLanguageRemapControlKeyTo, delegate_); |
| break; |
| case ui::DomCode::ALT_LEFT: |
| case ui::DomCode::ALT_RIGHT: |
| // ALT key |
| characteristic_flag = ui::EF_ALT_DOWN; |
| remapped_key = GetRemappedKey(prefs::kLanguageRemapAltKeyTo, delegate_); |
| break; |
| case ui::DomCode::ESCAPE: |
| remapped_key = |
| GetRemappedKey(prefs::kLanguageRemapEscapeKeyTo, delegate_); |
| break; |
| case ui::DomCode::BACKSPACE: |
| remapped_key = |
| GetRemappedKey(prefs::kLanguageRemapBackspaceKeyTo, delegate_); |
| break; |
| default: |
| break; |
| } |
| |
| if (remapped_key) { |
| state->key_code = remapped_key->result.key_code; |
| state->code = remapped_key->result.code; |
| state->key = remapped_key->result.key; |
| incoming.flags |= characteristic_flag; |
| characteristic_flag = remapped_key->flag; |
| if (incoming.key_code == ui::VKEY_CAPITAL || |
| incoming.key_code == ui::VKEY_F16) { |
| // Caps Lock is rewritten to another key event, remove EF_CAPS_LOCK_ON |
| // flag to prevent the keyboard's Caps Lock state being synced to the |
| // rewritten key event's flag in InputMethodChromeOS. (Caps Lock key on an |
| // external keyboard generates F16 which is treated as Caps Lock and then |
| // rewritten.) |
| incoming.flags &= ~ui::EF_CAPS_LOCK_ON; |
| } |
| if (remapped_key->remap_to == ui::chromeos::ModifierKey::kCapsLockKey) |
| characteristic_flag |= ui::EF_CAPS_LOCK_ON; |
| state->code = RelocateModifier( |
| state->code, ui::KeycodeConverter::DomCodeToLocation(incoming.code)); |
| } |
| |
| // Next, remap modifier bits. |
| state->flags |= GetRemappedModifierMasks(key_event, incoming.flags); |
| |
| // If the DomKey is not a modifier before remapping but is after, set the |
| // modifier latches for the later non-modifier key's modifier states. |
| bool non_modifier_to_modifier = |
| !ui::KeycodeConverter::IsDomKeyForModifier(incoming.key) && |
| ui::KeycodeConverter::IsDomKeyForModifier(state->key); |
| if (key_event.type() == ui::ET_KEY_PRESSED) { |
| state->flags |= characteristic_flag; |
| if (non_modifier_to_modifier) |
| pressed_modifier_latches_ |= characteristic_flag; |
| } else { |
| state->flags &= ~characteristic_flag; |
| if (non_modifier_to_modifier) |
| pressed_modifier_latches_ &= ~characteristic_flag; |
| } |
| |
| if (key_event.type() == ui::ET_KEY_PRESSED) { |
| if (!ui::KeycodeConverter::IsDomKeyForModifier(state->key)) { |
| used_modifier_latches_ |= pressed_modifier_latches_; |
| latched_modifier_latches_ = ui::EF_NONE; |
| } |
| } |
| |
| // Implement the Caps Lock modifier here, rather than in the |
| // AcceleratorController, so that the event is visible to apps (see |
| // crbug.com/775743). |
| if (key_event.type() == ui::ET_KEY_RELEASED && |
| state->key_code == ui::VKEY_CAPITAL) { |
| ::chromeos::input_method::ImeKeyboard* ime_keyboard = |
| ime_keyboard_for_testing_ |
| ? ime_keyboard_for_testing_ |
| : ::chromeos::input_method::InputMethodManager::Get() |
| ->GetImeKeyboard(); |
| ime_keyboard->SetCapsLockEnabled(!ime_keyboard->CapsLockIsEnabled()); |
| } |
| return exact_event; |
| } |
| |
| void EventRewriterChromeOS::RewriteNumPadKeys(const ui::KeyEvent& key_event, |
| MutableKeyState* state) { |
| DCHECK(key_event.type() == ui::ET_KEY_PRESSED || |
| key_event.type() == ui::ET_KEY_RELEASED); |
| static const struct NumPadRemapping { |
| ui::KeyboardCode input_key_code; |
| MutableKeyState result; |
| } kNumPadRemappings[] = { |
| {ui::VKEY_DELETE, |
| {ui::EF_NONE, ui::DomCode::NONE, ui::DomKey::Constant<'.'>::Character, |
| ui::VKEY_DECIMAL}}, |
| {ui::VKEY_INSERT, |
| {ui::EF_NONE, ui::DomCode::NONE, ui::DomKey::Constant<'0'>::Character, |
| ui::VKEY_NUMPAD0}}, |
| {ui::VKEY_END, |
| {ui::EF_NONE, ui::DomCode::NONE, ui::DomKey::Constant<'1'>::Character, |
| ui::VKEY_NUMPAD1}}, |
| {ui::VKEY_DOWN, |
| {ui::EF_NONE, ui::DomCode::NONE, ui::DomKey::Constant<'2'>::Character, |
| ui::VKEY_NUMPAD2}}, |
| {ui::VKEY_NEXT, |
| {ui::EF_NONE, ui::DomCode::NONE, ui::DomKey::Constant<'3'>::Character, |
| ui::VKEY_NUMPAD3}}, |
| {ui::VKEY_LEFT, |
| {ui::EF_NONE, ui::DomCode::NONE, ui::DomKey::Constant<'4'>::Character, |
| ui::VKEY_NUMPAD4}}, |
| {ui::VKEY_CLEAR, |
| {ui::EF_NONE, ui::DomCode::NONE, ui::DomKey::Constant<'5'>::Character, |
| ui::VKEY_NUMPAD5}}, |
| {ui::VKEY_RIGHT, |
| {ui::EF_NONE, ui::DomCode::NONE, ui::DomKey::Constant<'6'>::Character, |
| ui::VKEY_NUMPAD6}}, |
| {ui::VKEY_HOME, |
| {ui::EF_NONE, ui::DomCode::NONE, ui::DomKey::Constant<'7'>::Character, |
| ui::VKEY_NUMPAD7}}, |
| {ui::VKEY_UP, |
| {ui::EF_NONE, ui::DomCode::NONE, ui::DomKey::Constant<'8'>::Character, |
| ui::VKEY_NUMPAD8}}, |
| {ui::VKEY_PRIOR, |
| {ui::EF_NONE, ui::DomCode::NONE, ui::DomKey::Constant<'9'>::Character, |
| ui::VKEY_NUMPAD9}}}; |
| for (const auto& map : kNumPadRemappings) { |
| if (state->key_code == map.input_key_code) { |
| if (ui::KeycodeConverter::DomCodeToLocation(state->code) == |
| ui::DomKeyLocation::NUMPAD) { |
| ApplyRemapping(map.result, state); |
| } |
| return; |
| } |
| } |
| } |
| |
| void EventRewriterChromeOS::RewriteExtendedKeys(const ui::KeyEvent& key_event, |
| MutableKeyState* state) { |
| DCHECK(key_event.type() == ui::ET_KEY_PRESSED || |
| key_event.type() == ui::ET_KEY_RELEASED); |
| MutableKeyState incoming = *state; |
| |
| if ((incoming.flags & (ui::EF_COMMAND_DOWN | ui::EF_ALT_DOWN)) == |
| (ui::EF_COMMAND_DOWN | ui::EF_ALT_DOWN)) { |
| // Allow Search to avoid rewriting extended keys. |
| // For these, we only remove the EF_COMMAND_DOWN flag. |
| static const KeyboardRemapping::Condition kAvoidRemappings[] = { |
| {// Alt+Backspace |
| ui::EF_ALT_DOWN | ui::EF_COMMAND_DOWN, ui::VKEY_BACK}, |
| {// Control+Alt+Up |
| ui::EF_ALT_DOWN | ui::EF_CONTROL_DOWN | ui::EF_COMMAND_DOWN, |
| ui::VKEY_UP}, |
| {// Control+Alt+Down |
| ui::EF_ALT_DOWN | ui::EF_CONTROL_DOWN | ui::EF_COMMAND_DOWN, |
| ui::VKEY_DOWN}}; |
| for (const auto& condition : kAvoidRemappings) { |
| if (MatchKeyboardRemapping(*state, condition)) { |
| state->flags = incoming.flags & ~ui::EF_COMMAND_DOWN; |
| return; |
| } |
| } |
| } |
| |
| if (incoming.flags & ui::EF_COMMAND_DOWN) { |
| static const KeyboardRemapping kSearchRemappings[] = { |
| {// Search+BackSpace -> Delete |
| {ui::EF_COMMAND_DOWN, ui::VKEY_BACK}, |
| {ui::EF_NONE, ui::DomCode::DEL, ui::DomKey::DEL, ui::VKEY_DELETE}}, |
| {// Search+Left -> Home |
| {ui::EF_COMMAND_DOWN, ui::VKEY_LEFT}, |
| {ui::EF_NONE, ui::DomCode::HOME, ui::DomKey::HOME, ui::VKEY_HOME}}, |
| {// Search+Up -> Prior (aka PageUp) |
| {ui::EF_COMMAND_DOWN, ui::VKEY_UP}, |
| {ui::EF_NONE, ui::DomCode::PAGE_UP, ui::DomKey::PAGE_UP, |
| ui::VKEY_PRIOR}}, |
| {// Search+Right -> End |
| {ui::EF_COMMAND_DOWN, ui::VKEY_RIGHT}, |
| {ui::EF_NONE, ui::DomCode::END, ui::DomKey::END, ui::VKEY_END}}, |
| {// Search+Down -> Next (aka PageDown) |
| {ui::EF_COMMAND_DOWN, ui::VKEY_DOWN}, |
| {ui::EF_NONE, ui::DomCode::PAGE_DOWN, ui::DomKey::PAGE_DOWN, |
| ui::VKEY_NEXT}}, |
| {// Search+Period -> Insert |
| {ui::EF_COMMAND_DOWN, ui::VKEY_OEM_PERIOD}, |
| {ui::EF_NONE, ui::DomCode::INSERT, ui::DomKey::INSERT, |
| ui::VKEY_INSERT}}}; |
| bool skip_search_key_remapping = |
| delegate_ && delegate_->IsSearchKeyAcceleratorReserved(); |
| if (!skip_search_key_remapping && |
| RewriteWithKeyboardRemappings(kSearchRemappings, |
| base::size(kSearchRemappings), incoming, |
| state)) { |
| return; |
| } |
| } |
| |
| if (incoming.flags & ui::EF_ALT_DOWN) { |
| static const KeyboardRemapping kNonSearchRemappings[] = { |
| {// Alt+BackSpace -> Delete |
| {ui::EF_ALT_DOWN, ui::VKEY_BACK}, |
| {ui::EF_NONE, ui::DomCode::DEL, ui::DomKey::DEL, ui::VKEY_DELETE}}, |
| {// Control+Alt+Up -> Home |
| {ui::EF_ALT_DOWN | ui::EF_CONTROL_DOWN, ui::VKEY_UP}, |
| {ui::EF_NONE, ui::DomCode::HOME, ui::DomKey::HOME, ui::VKEY_HOME}}, |
| {// Alt+Up -> Prior (aka PageUp) |
| {ui::EF_ALT_DOWN, ui::VKEY_UP}, |
| {ui::EF_NONE, ui::DomCode::PAGE_UP, ui::DomKey::PAGE_UP, |
| ui::VKEY_PRIOR}}, |
| {// Control+Alt+Down -> End |
| {ui::EF_ALT_DOWN | ui::EF_CONTROL_DOWN, ui::VKEY_DOWN}, |
| {ui::EF_NONE, ui::DomCode::END, ui::DomKey::END, ui::VKEY_END}}, |
| {// Alt+Down -> Next (aka PageDown) |
| {ui::EF_ALT_DOWN, ui::VKEY_DOWN}, |
| {ui::EF_NONE, ui::DomCode::PAGE_DOWN, ui::DomKey::PAGE_DOWN, |
| ui::VKEY_NEXT}}}; |
| if (RewriteWithKeyboardRemappings(kNonSearchRemappings, |
| base::size(kNonSearchRemappings), |
| incoming, state)) { |
| return; |
| } |
| } |
| } |
| |
| void EventRewriterChromeOS::RewriteFunctionKeys(const ui::KeyEvent& key_event, |
| MutableKeyState* state) { |
| CHECK(key_event.type() == ui::ET_KEY_PRESSED || |
| key_event.type() == ui::ET_KEY_RELEASED); |
| |
| if ((state->key_code >= ui::VKEY_F1) && (state->key_code <= ui::VKEY_F12)) { |
| // By default the top row (F1-F12) keys are system keys for back, forward, |
| // brightness, volume, etc. However, windows for v2 apps can optionally |
| // request raw function keys for these keys. |
| const bool top_row_keys_are_function_keys = |
| delegate_ && delegate_->TopRowKeysAreFunctionKeys(); |
| const bool search_is_pressed = (state->flags & ui::EF_COMMAND_DOWN) != 0; |
| |
| // Search? Top Row Result |
| // ------- -------- ------ |
| // No Fn Unchanged |
| // No System Fn -> System |
| // Yes Fn Fn -> System |
| // Yes System Search+Fn -> Fn |
| if (top_row_keys_are_function_keys == search_is_pressed) { |
| // Rewrite the F1-F12 keys on a Chromebook keyboard to system keys. |
| // This is the original Chrome OS layout. |
| static const KeyboardRemapping kFkeysToSystemKeys1[] = { |
| {{ui::EF_NONE, ui::VKEY_F1}, |
| {ui::EF_NONE, ui::DomCode::BROWSER_BACK, ui::DomKey::BROWSER_BACK, |
| ui::VKEY_BROWSER_BACK}}, |
| {{ui::EF_NONE, ui::VKEY_F2}, |
| {ui::EF_NONE, ui::DomCode::BROWSER_FORWARD, |
| ui::DomKey::BROWSER_FORWARD, ui::VKEY_BROWSER_FORWARD}}, |
| {{ui::EF_NONE, ui::VKEY_F3}, |
| {ui::EF_NONE, ui::DomCode::BROWSER_REFRESH, |
| ui::DomKey::BROWSER_REFRESH, ui::VKEY_BROWSER_REFRESH}}, |
| {{ui::EF_NONE, ui::VKEY_F4}, |
| {ui::EF_NONE, ui::DomCode::ZOOM_TOGGLE, ui::DomKey::ZOOM_TOGGLE, |
| ui::VKEY_MEDIA_LAUNCH_APP2}}, |
| {{ui::EF_NONE, ui::VKEY_F5}, |
| {ui::EF_NONE, ui::DomCode::SELECT_TASK, |
| ui::DomKey::LAUNCH_MY_COMPUTER, ui::VKEY_MEDIA_LAUNCH_APP1}}, |
| {{ui::EF_NONE, ui::VKEY_F6}, |
| {ui::EF_NONE, ui::DomCode::BRIGHTNESS_DOWN, |
| ui::DomKey::BRIGHTNESS_DOWN, ui::VKEY_BRIGHTNESS_DOWN}}, |
| {{ui::EF_NONE, ui::VKEY_F7}, |
| {ui::EF_NONE, ui::DomCode::BRIGHTNESS_UP, ui::DomKey::BRIGHTNESS_UP, |
| ui::VKEY_BRIGHTNESS_UP}}, |
| {{ui::EF_NONE, ui::VKEY_F8}, |
| {ui::EF_NONE, ui::DomCode::VOLUME_MUTE, |
| ui::DomKey::AUDIO_VOLUME_MUTE, ui::VKEY_VOLUME_MUTE}}, |
| {{ui::EF_NONE, ui::VKEY_F9}, |
| {ui::EF_NONE, ui::DomCode::VOLUME_DOWN, |
| ui::DomKey::AUDIO_VOLUME_DOWN, ui::VKEY_VOLUME_DOWN}}, |
| {{ui::EF_NONE, ui::VKEY_F10}, |
| {ui::EF_NONE, ui::DomCode::VOLUME_UP, ui::DomKey::AUDIO_VOLUME_UP, |
| ui::VKEY_VOLUME_UP}}, |
| }; |
| // The new layout with forward button removed and play/pause added. |
| static const KeyboardRemapping kFkeysToSystemKeys2[] = { |
| {{ui::EF_NONE, ui::VKEY_F1}, |
| {ui::EF_NONE, ui::DomCode::BROWSER_BACK, ui::DomKey::BROWSER_BACK, |
| ui::VKEY_BROWSER_BACK}}, |
| {{ui::EF_NONE, ui::VKEY_F2}, |
| {ui::EF_NONE, ui::DomCode::BROWSER_REFRESH, |
| ui::DomKey::BROWSER_REFRESH, ui::VKEY_BROWSER_REFRESH}}, |
| {{ui::EF_NONE, ui::VKEY_F3}, |
| {ui::EF_NONE, ui::DomCode::ZOOM_TOGGLE, ui::DomKey::ZOOM_TOGGLE, |
| ui::VKEY_MEDIA_LAUNCH_APP2}}, |
| {{ui::EF_NONE, ui::VKEY_F4}, |
| {ui::EF_NONE, ui::DomCode::SELECT_TASK, |
| ui::DomKey::LAUNCH_MY_COMPUTER, ui::VKEY_MEDIA_LAUNCH_APP1}}, |
| {{ui::EF_NONE, ui::VKEY_F5}, |
| {ui::EF_NONE, ui::DomCode::BRIGHTNESS_DOWN, |
| ui::DomKey::BRIGHTNESS_DOWN, ui::VKEY_BRIGHTNESS_DOWN}}, |
| {{ui::EF_NONE, ui::VKEY_F6}, |
| {ui::EF_NONE, ui::DomCode::BRIGHTNESS_UP, ui::DomKey::BRIGHTNESS_UP, |
| ui::VKEY_BRIGHTNESS_UP}}, |
| {{ui::EF_NONE, ui::VKEY_F7}, |
| {ui::EF_NONE, ui::DomCode::MEDIA_PLAY_PAUSE, |
| ui::DomKey::MEDIA_PLAY_PAUSE, ui::VKEY_MEDIA_PLAY_PAUSE}}, |
| {{ui::EF_NONE, ui::VKEY_F8}, |
| {ui::EF_NONE, ui::DomCode::VOLUME_MUTE, |
| ui::DomKey::AUDIO_VOLUME_MUTE, ui::VKEY_VOLUME_MUTE}}, |
| {{ui::EF_NONE, ui::VKEY_F9}, |
| {ui::EF_NONE, ui::DomCode::VOLUME_DOWN, |
| ui::DomKey::AUDIO_VOLUME_DOWN, ui::VKEY_VOLUME_DOWN}}, |
| {{ui::EF_NONE, ui::VKEY_F10}, |
| {ui::EF_NONE, ui::DomCode::VOLUME_UP, ui::DomKey::AUDIO_VOLUME_UP, |
| ui::VKEY_VOLUME_UP}}, |
| }; |
| |
| const auto iter = device_id_to_info_.find(key_event.source_device_id()); |
| KeyboardTopRowLayout layout = kKbdTopRowLayoutDefault; |
| if (iter != device_id_to_info_.end()) |
| layout = iter->second.top_row_layout; |
| |
| const KeyboardRemapping* mapping = nullptr; |
| size_t mappingSize = 0u; |
| switch (layout) { |
| case kKbdTopRowLayout2: |
| mapping = kFkeysToSystemKeys2; |
| mappingSize = base::size(kFkeysToSystemKeys2); |
| break; |
| case kKbdTopRowLayout1: |
| default: |
| mapping = kFkeysToSystemKeys1; |
| mappingSize = base::size(kFkeysToSystemKeys1); |
| break; |
| } |
| |
| MutableKeyState incoming_without_command = *state; |
| incoming_without_command.flags &= ~ui::EF_COMMAND_DOWN; |
| if (RewriteWithKeyboardRemappings(mapping, mappingSize, |
| incoming_without_command, state)) { |
| return; |
| } |
| } else if (search_is_pressed) { |
| // Allow Search to avoid rewriting F1-F12. |
| state->flags &= ~ui::EF_COMMAND_DOWN; |
| return; |
| } |
| } |
| |
| if (state->flags & ui::EF_COMMAND_DOWN) { |
| // Remap Search+<number> to F<number>. |
| // We check the DOM3 |code| here instead of the VKEY, as these keys may |
| // have different |KeyboardCode|s when modifiers are pressed, such as shift. |
| static const struct { |
| ui::DomCode input_dom_code; |
| MutableKeyState result; |
| } kNumberKeysToFkeys[] = { |
| {ui::DomCode::DIGIT1, |
| {ui::EF_NONE, ui::DomCode::F1, ui::DomKey::F1, ui::VKEY_F1}}, |
| {ui::DomCode::DIGIT2, |
| {ui::EF_NONE, ui::DomCode::F2, ui::DomKey::F2, ui::VKEY_F2}}, |
| {ui::DomCode::DIGIT3, |
| {ui::EF_NONE, ui::DomCode::F3, ui::DomKey::F3, ui::VKEY_F3}}, |
| {ui::DomCode::DIGIT4, |
| {ui::EF_NONE, ui::DomCode::F4, ui::DomKey::F4, ui::VKEY_F4}}, |
| {ui::DomCode::DIGIT5, |
| {ui::EF_NONE, ui::DomCode::F5, ui::DomKey::F5, ui::VKEY_F5}}, |
| {ui::DomCode::DIGIT6, |
| {ui::EF_NONE, ui::DomCode::F6, ui::DomKey::F6, ui::VKEY_F6}}, |
| {ui::DomCode::DIGIT7, |
| {ui::EF_NONE, ui::DomCode::F7, ui::DomKey::F7, ui::VKEY_F7}}, |
| {ui::DomCode::DIGIT8, |
| {ui::EF_NONE, ui::DomCode::F8, ui::DomKey::F8, ui::VKEY_F8}}, |
| {ui::DomCode::DIGIT9, |
| {ui::EF_NONE, ui::DomCode::F9, ui::DomKey::F9, ui::VKEY_F9}}, |
| {ui::DomCode::DIGIT0, |
| {ui::EF_NONE, ui::DomCode::F10, ui::DomKey::F10, ui::VKEY_F10}}, |
| {ui::DomCode::MINUS, |
| {ui::EF_NONE, ui::DomCode::F11, ui::DomKey::F11, ui::VKEY_F11}}, |
| {ui::DomCode::EQUAL, |
| {ui::EF_NONE, ui::DomCode::F12, ui::DomKey::F12, ui::VKEY_F12}}}; |
| for (const auto& map : kNumberKeysToFkeys) { |
| if (state->code == map.input_dom_code) { |
| state->flags &= ~ui::EF_COMMAND_DOWN; |
| ApplyRemapping(map.result, state); |
| return; |
| } |
| } |
| } |
| } |
| |
| void EventRewriterChromeOS::RewriteLocatedEvent(const ui::Event& event, |
| int* flags) { |
| if (!delegate_) |
| return; |
| *flags = GetRemappedModifierMasks(event, *flags); |
| } |
| |
| int EventRewriterChromeOS::RewriteModifierClick( |
| const ui::MouseEvent& mouse_event, |
| int* flags) { |
| // Note that this behavior is limited to mouse events coming from touchpad |
| // devices. https://crbug.com/890648. |
| |
| // Remap Alt+Button1 to Button3. |
| const int kAltLeftButton = (ui::EF_ALT_DOWN | ui::EF_LEFT_MOUSE_BUTTON); |
| if (((*flags & kAltLeftButton) == kAltLeftButton) && |
| ((mouse_event.type() == ui::ET_MOUSE_PRESSED) || |
| pressed_device_ids_.count(mouse_event.source_device_id())) && |
| IsFromTouchpadDevice(mouse_event)) { |
| *flags &= ~kAltLeftButton; |
| *flags |= ui::EF_RIGHT_MOUSE_BUTTON; |
| if (mouse_event.type() == ui::ET_MOUSE_PRESSED) |
| pressed_device_ids_.insert(mouse_event.source_device_id()); |
| else |
| pressed_device_ids_.erase(mouse_event.source_device_id()); |
| return ui::EF_RIGHT_MOUSE_BUTTON; |
| } |
| return ui::EF_NONE; |
| } |
| |
| void EventRewriterChromeOS::KeyboardDeviceAddedInternal( |
| int device_id, |
| DeviceType type, |
| KeyboardTopRowLayout layout) { |
| // Always overwrite the existing device_id since the X server may reuse a |
| // device id for an unattached device. |
| device_id_to_info_[device_id] = {type, layout}; |
| } |
| |
| EventRewriterChromeOS::DeviceType EventRewriterChromeOS::KeyboardDeviceAdded( |
| int device_id) { |
| if (!ui::InputDeviceManager::HasInstance()) |
| return kDeviceUnknown; |
| const std::vector<ui::InputDevice>& keyboard_devices = |
| ui::InputDeviceManager::GetInstance()->GetKeyboardDevices(); |
| for (const auto& keyboard : keyboard_devices) { |
| if (keyboard.id == device_id) { |
| const DeviceType type = GetDeviceType(keyboard); |
| if (type == kDeviceAppleKeyboard) { |
| VLOG(1) << "Apple keyboard '" << keyboard.name << "' connected: " |
| << "id=" << device_id; |
| } else if (type == kDeviceHotrodRemote) { |
| VLOG(1) << "Hotrod remote '" << keyboard.name << "' connected: " |
| << "id=" << device_id; |
| } else if (type == kDeviceVirtualCoreKeyboard) { |
| VLOG(1) << "Xorg virtual '" << keyboard.name << "' connected: " |
| << "id=" << device_id; |
| } else { |
| VLOG(1) << "Unknown keyboard '" << keyboard.name << "' connected: " |
| << "id=" << device_id; |
| } |
| |
| KeyboardTopRowLayout layout; |
| if (GetKeyboardTopRowLayout(keyboard.sys_path, &layout)) { |
| // Don't store a device info when an error occurred while reading from |
| // udev. This gives a chance to reattempt reading from udev on |
| // subsequent key events, rather than being stuck in a bad state until |
| // next reboot. crbug.com/783166. |
| KeyboardDeviceAddedInternal(keyboard.id, type, layout); |
| } |
| |
| return type; |
| } |
| } |
| return kDeviceUnknown; |
| } |
| |
| } // namespace ui |
