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Unified Diff: chrome/browser/chromeos/events/event_rewriter.cc

Issue 2724913002: Move chromeos::EventRewriter to //ui/chromeos/events (Closed)
Patch Set: Fix a typo Created 3 years, 9 months ago
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Index: chrome/browser/chromeos/events/event_rewriter.cc
diff --git a/chrome/browser/chromeos/events/event_rewriter.cc b/chrome/browser/chromeos/events/event_rewriter.cc
deleted file mode 100644
index d622d52f11b2bf35d87509c276640b6c40a715a7..0000000000000000000000000000000000000000
--- a/chrome/browser/chromeos/events/event_rewriter.cc
+++ /dev/null
@@ -1,1196 +0,0 @@
-// 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 "chrome/browser/chromeos/events/event_rewriter.h"
-
-#include <stddef.h>
-
-#include <vector>
-
-#include "base/command_line.h"
-#include "base/logging.h"
-#include "base/macros.h"
-#include "base/strings/string_split.h"
-#include "base/strings/string_util.h"
-#include "base/sys_info.h"
-#include "chrome/browser/chromeos/login/ui/login_display_host.h"
-#include "chrome/browser/extensions/extension_commands_global_registry.h"
-#include "chrome/browser/profiles/profile_manager.h"
-#include "chrome/browser/ui/webui/chromeos/login/oobe_ui.h"
-#include "chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h"
-#include "chrome/common/pref_names.h"
-#include "chromeos/chromeos_switches.h"
-#include "components/prefs/pref_service.h"
-#include "components/user_manager/user_manager.h"
-#include "ui/base/ime/chromeos/ime_keyboard.h"
-#include "ui/base/ime/chromeos/input_method_manager.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"
-
-#if defined(USE_X11)
-#include <X11/extensions/XInput2.h>
-#include <X11/Xlib.h>
-
-// Get rid of macros from Xlib.h that conflicts with other parts of the code.
-#undef RootWindow
-#undef Status
-
-#include "ui/base/x/x11_util.h"
-#include "ui/events/keycodes/keyboard_code_conversion_x.h"
-#endif
-
-namespace chromeos {
-
-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;
- int remap_to;
- const char* pref_name;
- EventRewriter::MutableKeyState result;
-} kModifierRemappings[] = {
- {// kModifierRemappingCtrl references this entry by index.
- ui::EF_CONTROL_DOWN,
- input_method::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,
- input_method::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,
- input_method::kSearchKey,
- prefs::kLanguageRemapSearchKeyTo,
- {ui::EF_COMMAND_DOWN, ui::DomCode::META_LEFT, ui::DomKey::META,
- ui::VKEY_LWIN}},
- {ui::EF_ALT_DOWN,
- input_method::kAltKey,
- prefs::kLanguageRemapAltKeyTo,
- {ui::EF_ALT_DOWN, ui::DomCode::ALT_LEFT, ui::DomKey::ALT, ui::VKEY_MENU}},
- {ui::EF_NONE,
- input_method::kVoidKey,
- nullptr,
- {ui::EF_NONE, ui::DomCode::NONE, ui::DomKey::NONE, ui::VKEY_UNKNOWN}},
- {ui::EF_MOD3_DOWN,
- input_method::kCapsLockKey,
- prefs::kLanguageRemapCapsLockKeyTo,
- {ui::EF_MOD3_DOWN, ui::DomCode::CAPS_LOCK, ui::DomKey::CAPS_LOCK,
- ui::VKEY_CAPITAL}},
- {ui::EF_NONE,
- input_method::kEscapeKey,
- prefs::kLanguageRemapEscapeKeyTo,
- {ui::EF_NONE, ui::DomCode::ESCAPE, ui::DomKey::ESCAPE, ui::VKEY_ESCAPE}},
- {ui::EF_NONE,
- input_method::kBackspaceKey,
- prefs::kLanguageRemapBackspaceKeyTo,
- {ui::EF_NONE, ui::DomCode::BACKSPACE, ui::DomKey::BACKSPACE,
- ui::VKEY_BACK}},
- {ui::EF_NONE,
- input_method::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 Search is currently remapped to, call the function with
-// prefs::kLanguageRemapSearchKeyTo.
-const ModifierRemapping* GetRemappedKey(const std::string& pref_name,
- const PrefService& pref_service) {
- int value = -1;
- // If we're at the login screen, try to get the pref from the global prefs
- // dictionary.
- if (!LoginDisplayHost::default_host() ||
- !LoginDisplayHost::default_host()
- ->GetOobeUI()
- ->signin_screen_handler()
- ->GetKeyboardRemappedPrefValue(pref_name, &value)) {
- if (!pref_service.FindPreference(pref_name))
- return nullptr;
- value = pref_service.GetInteger(pref_name);
- }
-
- for (size_t i = 0; i < arraysize(kModifierRemappings); ++i) {
- if (value == kModifierRemappings[i].remap_to)
- return &kModifierRemappings[i];
- }
- return nullptr;
-}
-
-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.
- input_method::InputMethodManager* manager =
- input_method::InputMethodManager::Get();
- return manager->IsISOLevel5ShiftUsedByCurrentInputMethod();
-}
-
-bool IsExtensionCommandRegistered(ui::KeyboardCode key_code, int flags) {
- // Some keyboard events for ChromeOS get rewritten, such as:
- // Search+Shift+Left gets converted to Shift+Home (BeginDocument).
- // This doesn't make sense if the user has assigned that shortcut
- // to an extension. Because:
- // 1) The extension would, upon seeing a request for Ctrl+Shift+Home have
- // to register for Shift+Home, instead.
- // 2) The conversion is unnecessary, because Shift+Home (BeginDocument) isn't
- // going to be executed.
- // Therefore, we skip converting the accelerator if an extension has
- // registered for this shortcut.
- Profile* profile = ProfileManager::GetActiveUserProfile();
- if (!profile || !extensions::ExtensionCommandsGlobalRegistry::Get(profile))
- return false;
-
- int modifiers = flags & (ui::EF_SHIFT_DOWN | ui::EF_CONTROL_DOWN |
- ui::EF_ALT_DOWN | ui::EF_COMMAND_DOWN);
- ui::Accelerator accelerator(key_code, modifiers);
- return extensions::ExtensionCommandsGlobalRegistry::Get(profile)
- ->IsRegistered(accelerator);
-}
-
-EventRewriter::DeviceType GetDeviceType(const std::string& device_name,
- int vendor_id,
- int product_id) {
- if (vendor_id == kHotrodRemoteVendorId &&
- product_id == kHotrodRemoteProductId) {
- return EventRewriter::kDeviceHotrodRemote;
- }
-
- if (base::LowerCaseEqualsASCII(device_name, "virtual core keyboard"))
- return EventRewriter::kDeviceVirtualCoreKeyboard;
-
- std::vector<std::string> tokens = base::SplitString(
- 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 EventRewriter::kDeviceAppleKeyboard;
- }
-
- return EventRewriter::kDeviceUnknown;
-}
-
-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|.
- EventRewriter::MutableKeyState result;
-};
-
-bool MatchKeyboardRemapping(const EventRewriter::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 EventRewriter::MutableKeyState& changes,
- EventRewriter::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 EventRewriter::MutableKeyState& input_state,
- EventRewriter::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,
- EventRewriter::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;
-}
-
-} // namespace
-
-EventRewriter::EventRewriter(ui::EventRewriter* sticky_keys_controller)
- : last_keyboard_device_id_(ui::ED_UNKNOWN_DEVICE),
- ime_keyboard_for_testing_(NULL),
- pref_service_for_testing_(NULL),
- sticky_keys_controller_(sticky_keys_controller),
- pressed_modifier_latches_(ui::EF_NONE),
- latched_modifier_latches_(ui::EF_NONE),
- used_modifier_latches_(ui::EF_NONE) {}
-
-EventRewriter::~EventRewriter() {}
-
-EventRewriter::DeviceType EventRewriter::KeyboardDeviceAddedForTesting(
- int device_id,
- const std::string& device_name) {
- // Tests must avoid XI2 reserved device IDs.
- DCHECK((device_id < 0) || (device_id > 1));
- return KeyboardDeviceAddedInternal(device_id, device_name, kUnknownVendorId,
- kUnknownProductId);
-}
-
-void EventRewriter::RewriteMouseButtonEventForTesting(
- const ui::MouseEvent& event,
- std::unique_ptr<ui::Event>* rewritten_event) {
- RewriteMouseButtonEvent(event, rewritten_event);
-}
-
-ui::EventRewriteStatus EventRewriter::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 EventRewriter::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 EventRewriter::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);
-}
-
-void EventRewriter::DeviceKeyPressedOrReleased(int device_id) {
- std::map<int, DeviceType>::const_iterator iter =
- device_id_to_type_.find(device_id);
- DeviceType type;
- if (iter != device_id_to_type_.end())
- type = iter->second;
- 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;
-}
-
-const PrefService* EventRewriter::GetPrefService() const {
- if (pref_service_for_testing_)
- return pref_service_for_testing_;
- Profile* profile = ProfileManager::GetActiveUserProfile();
- return profile ? profile->GetPrefs() : NULL;
-}
-
-bool EventRewriter::IsAppleKeyboard() const {
- return IsLastKeyboardOfType(kDeviceAppleKeyboard);
-}
-
-bool EventRewriter::IsHotrodRemote() const {
- return IsLastKeyboardOfType(kDeviceHotrodRemote);
-}
-
-bool EventRewriter::IsLastKeyboardOfType(DeviceType device_type) const {
- if (last_keyboard_device_id_ == ui::ED_UNKNOWN_DEVICE)
- return false;
-
- // Check which device generated |event|.
- std::map<int, DeviceType>::const_iterator iter =
- device_id_to_type_.find(last_keyboard_device_id_);
- if (iter == device_id_to_type_.end()) {
- LOG(ERROR) << "Device ID " << last_keyboard_device_id_ << " is unknown.";
- return false;
- }
-
- const DeviceType type = iter->second;
- return type == device_type;
-}
-
-bool EventRewriter::TopRowKeysAreFunctionKeys(const ui::KeyEvent& event) const {
- const PrefService* prefs = GetPrefService();
- return prefs && prefs->FindPreference(prefs::kLanguageSendFunctionKeys) &&
- prefs->GetBoolean(prefs::kLanguageSendFunctionKeys);
-}
-
-int EventRewriter::GetRemappedModifierMasks(const PrefService& pref_service,
- 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 < arraysize(kModifierRemappings));
- ++i) {
- const ModifierRemapping* remapped_key = NULL;
- if (!(unmodified_flags & kModifierRemappings[i].flag))
- continue;
- switch (kModifierRemappings[i].flag) {
- case ui::EF_COMMAND_DOWN:
- // Rewrite Command key presses on an Apple keyboard to Control.
- if (IsAppleKeyboard()) {
- DCHECK_EQ(ui::EF_CONTROL_DOWN, kModifierRemappingCtrl->flag);
- remapped_key = kModifierRemappingCtrl;
- }
- 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, pref_service);
- }
- if (remapped_key) {
- unmodified_flags &= ~kModifierRemappings[i].flag;
- rewritten_flags |= remapped_key->flag;
- }
- }
- return rewritten_flags | unmodified_flags;
-}
-
-ui::EventRewriteStatus EventRewriter::RewriteKeyEvent(
- const ui::KeyEvent& key_event,
- std::unique_ptr<ui::Event>* rewritten_event) {
- if (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 =
- 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) &&
-#if defined(USE_X11)
- // TODO(kpschoedel): This test is present because several consumers of
- // key events depend on having a native core X11 event, so we rewrite
- // all XI2 key events (GenericEvent) into corresponding core X11 key
- // events. Remove this when event consumers no longer care about
- // native X11 event details (crbug.com/380349).
- (!key_event.HasNativeEvent() ||
- (key_event.native_event()->type != GenericEvent)) &&
-#endif
- (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 EventRewriter::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 defined(USE_X11)
- ui::UpdateX11EventForFlags(rewritten_mouse_event);
-#endif
- if (changed_button != ui::EF_NONE) {
- rewritten_mouse_event->set_changed_button_flags(changed_button);
-#if defined(USE_X11)
- ui::UpdateX11EventForChangedButtonFlags(rewritten_mouse_event);
-#endif
- }
- return status;
-}
-
-ui::EventRewriteStatus EventRewriter::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|.
-#if defined(USE_X11)
- ui::UpdateX11EventForFlags(rewritten_event->get());
-#endif
- break;
- case ui::EVENT_REWRITE_CONTINUE:
- if (flags != wheel_event.flags()) {
- *rewritten_event = base::MakeUnique<ui::MouseWheelEvent>(wheel_event);
- (*rewritten_event)->set_flags(flags);
- status = ui::EVENT_REWRITE_REWRITTEN;
-#if defined(USE_X11)
- ui::UpdateX11EventForFlags(rewritten_event->get());
-#endif
- }
- break;
- case ui::EVENT_REWRITE_DISCARD:
- NOTREACHED();
- break;
- }
-
- return status;
-}
-
-ui::EventRewriteStatus EventRewriter::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);
-#if defined(USE_X11)
- ui::UpdateX11EventForFlags(rewritten_touch_event);
-#endif
- return ui::EVENT_REWRITE_REWRITTEN;
-}
-
-ui::EventRewriteStatus EventRewriter::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);
-#if defined(USE_X11)
- if (status != ui::EVENT_REWRITE_CONTINUE)
- ui::UpdateX11EventForFlags(rewritten_event->get());
-#endif
- return status;
-}
-
-bool EventRewriter::RewriteModifierKeys(const ui::KeyEvent& key_event,
- MutableKeyState* state) {
- DCHECK(key_event.type() == ui::ET_KEY_PRESSED ||
- key_event.type() == ui::ET_KEY_RELEASED);
-
- // Do nothing if we have just logged in as guest but have not restarted chrome
- // process yet (so we are still on the login screen). In this situations we
- // have no user profile so can not do anything useful.
- // Note that currently, unlike other accounts, when user logs in as guest, we
- // restart chrome process. In future this is to be changed.
- // TODO(glotov): remove the following condition when we do not restart chrome
- // when user logs in as guest.
- // TODO(kpschoedel): check whether this is still necessary.
- if (user_manager::UserManager::Get()->IsLoggedInAsGuest() &&
- LoginDisplayHost::default_host())
- return false;
-
- const PrefService* pref_service = GetPrefService();
- if (!pref_service)
- 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 = NULL;
- // 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, *pref_service);
- // 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, *pref_service);
- } else {
- characteristic_flag = ui::EF_ALTGR_DOWN;
- remapped_key =
- GetRemappedKey(prefs::kLanguageRemapSearchKeyTo, *pref_service);
- }
- }
- if (remapped_key && remapped_key->result.key_code == ui::VKEY_CAPITAL)
- remapped_key = kModifierRemappingNeoMod3;
- break;
-#if !defined(USE_X11)
- 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;
-#endif
- 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:
- characteristic_flag = ui::EF_CAPS_LOCK_ON;
- remapped_key =
- GetRemappedKey(prefs::kLanguageRemapCapsLockKeyTo, *pref_service);
- break;
- case ui::DomCode::META_LEFT:
- case ui::DomCode::META_RIGHT:
- characteristic_flag = ui::EF_COMMAND_DOWN;
- // Rewrite Command-L/R key presses on an Apple keyboard to Control.
- if (IsAppleKeyboard()) {
- DCHECK_EQ(ui::VKEY_CONTROL, kModifierRemappingCtrl->result.key_code);
- remapped_key = kModifierRemappingCtrl;
- } else {
- remapped_key =
- GetRemappedKey(prefs::kLanguageRemapSearchKeyTo, *pref_service);
- }
- // 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, *pref_service);
- break;
- case ui::DomCode::ALT_LEFT:
- case ui::DomCode::ALT_RIGHT:
- // ALT key
- characteristic_flag = ui::EF_ALT_DOWN;
- remapped_key =
- GetRemappedKey(prefs::kLanguageRemapAltKeyTo, *pref_service);
- break;
- case ui::DomCode::ESCAPE:
- remapped_key =
- GetRemappedKey(prefs::kLanguageRemapEscapeKeyTo, *pref_service);
- break;
- case ui::DomCode::BACKSPACE:
- remapped_key =
- GetRemappedKey(prefs::kLanguageRemapBackspaceKeyTo, *pref_service);
- 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 (remapped_key->remap_to == input_method::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(*pref_service, 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;
- }
- // Toggle Caps Lock if the remapped key is ui::VKEY_CAPITAL.
- if (state->key_code == ui::VKEY_CAPITAL
- // ... except on linux Chrome OS, where InputMethodChromeOS handles it.
- && (base::SysInfo::IsRunningOnChromeOS() || ime_keyboard_for_testing_)
-#if defined(USE_X11)
- // ... but for X11, do nothing if the original key is ui::VKEY_CAPITAL
- // (i.e. a Caps Lock key on an external keyboard is pressed) since X
- // handles that itself.
- && incoming.key_code != ui::VKEY_CAPITAL
-#endif
- ) {
- 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 EventRewriter::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;
- EventRewriter::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 EventRewriter::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},
- {// Alt+Up
- ui::EF_ALT_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},
- {// Alt+Down
- ui::EF_ALT_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}}};
- if (RewriteWithKeyboardRemappings(
- kSearchRemappings, arraysize(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,
- arraysize(kNonSearchRemappings), incoming,
- state)) {
- return;
- }
- }
-}
-
-void EventRewriter::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.
- bool top_row_keys_are_function_keys = TopRowKeysAreFunctionKeys(key_event);
- 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.
- static const KeyboardRemapping kFkeysToSystemKeys[] = {
- {{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}},
- };
- MutableKeyState incoming_without_command = *state;
- incoming_without_command.flags &= ~ui::EF_COMMAND_DOWN;
- if (RewriteWithKeyboardRemappings(kFkeysToSystemKeys,
- arraysize(kFkeysToSystemKeys),
- 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;
- EventRewriter::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 EventRewriter::RewriteLocatedEvent(const ui::Event& event, int* flags) {
- const PrefService* pref_service = GetPrefService();
- if (!pref_service)
- return;
- *flags = GetRemappedModifierMasks(*pref_service, event, *flags);
-}
-
-int EventRewriter::RewriteModifierClick(const ui::MouseEvent& mouse_event,
- int* flags) {
- // 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()))) {
- *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;
-}
-
-EventRewriter::DeviceType EventRewriter::KeyboardDeviceAddedInternal(
- int device_id,
- const std::string& device_name,
- int vendor_id,
- int product_id) {
- const DeviceType type = GetDeviceType(device_name, vendor_id, product_id);
- if (type == kDeviceAppleKeyboard) {
- VLOG(1) << "Apple keyboard '" << device_name << "' connected: "
- << "id=" << device_id;
- } else if (type == kDeviceHotrodRemote) {
- VLOG(1) << "Hotrod remote '" << device_name << "' connected: "
- << "id=" << device_id;
- } else if (type == kDeviceVirtualCoreKeyboard) {
- VLOG(1) << "Xorg virtual '" << device_name << "' connected: "
- << "id=" << device_id;
- } else {
- VLOG(1) << "Unknown keyboard '" << device_name << "' connected: "
- << "id=" << device_id;
- }
- // Always overwrite the existing device_id since the X server may reuse a
- // device id for an unattached device.
- device_id_to_type_[device_id] = type;
- return type;
-}
-
-EventRewriter::DeviceType EventRewriter::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) {
- return KeyboardDeviceAddedInternal(
- keyboard.id, keyboard.name, keyboard.vendor_id, keyboard.product_id);
- }
- }
- return kDeviceUnknown;
-}
-
-} // namespace chromeos
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