Request key maps from input manager service.

Instead of each application loading the KeyCharacterMap from
the file system, get them from the input manager service as
part of the InputDevice object.

Refactored InputManager to be a proper singleton instead of
having a bunch of static methods.

InputManager now maintains a cache of all InputDevice objects
that it has loaded.  Currently we never invalidate the cache
which can cause InputDevice to return stale motion ranges if
the device is reconfigured.  This will be fixed in a future change.

Added a fake InputDevice with ID -1 to represent the virtual keyboard.

Change-Id: If7a695839ad0972317a5aab89e9d1e42ace28eb7

1 files changed, 16 insertions, 158 deletions

diff --git a/libs/androidfw/Input.cpp b/libs/androidfw/Input.cpp
index 2e4b26f..1617a3f 100644
--- a/libs/androidfw/Input.cpp
+++ b/libs/androidfw/Input.cpp
@@ -1,8 +1,19 @@
-//
-// Copyright 2010 The Android Open Source Project
-//
-// Provides a pipe-based transport for native events in the NDK.
-//
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 #define LOG_TAG "Input"
 
 //#define LOG_NDEBUG 0
@@ -39,106 +50,6 @@
 
 namespace android {
 
-static const char* CONFIGURATION_FILE_DIR[] = {
-        "idc/",
-        "keylayout/",
-        "keychars/",
-};
-
-static const char* CONFIGURATION_FILE_EXTENSION[] = {
-        ".idc",
-        ".kl",
-        ".kcm",
-};
-
-static bool isValidNameChar(char ch) {
-    return isascii(ch) && (isdigit(ch) || isalpha(ch) || ch == '-' || ch == '_');
-}
-
-static void appendInputDeviceConfigurationFileRelativePath(String8& path,
-        const String8& name, InputDeviceConfigurationFileType type) {
-    path.append(CONFIGURATION_FILE_DIR[type]);
-    for (size_t i = 0; i < name.length(); i++) {
-        char ch = name[i];
-        if (!isValidNameChar(ch)) {
-            ch = '_';
-        }
-        path.append(&ch, 1);
-    }
-    path.append(CONFIGURATION_FILE_EXTENSION[type]);
-}
-
-String8 getInputDeviceConfigurationFilePathByDeviceIdentifier(
-        const InputDeviceIdentifier& deviceIdentifier,
-        InputDeviceConfigurationFileType type) {
-    if (deviceIdentifier.vendor !=0 && deviceIdentifier.product != 0) {
-        if (deviceIdentifier.version != 0) {
-            // Try vendor product version.
-            String8 versionPath(getInputDeviceConfigurationFilePathByName(
-                    String8::format("Vendor_%04x_Product_%04x_Version_%04x",
-                            deviceIdentifier.vendor, deviceIdentifier.product,
-                            deviceIdentifier.version),
-                    type));
-            if (!versionPath.isEmpty()) {
-                return versionPath;
-            }
-        }
-
-        // Try vendor product.
-        String8 productPath(getInputDeviceConfigurationFilePathByName(
-                String8::format("Vendor_%04x_Product_%04x",
-                        deviceIdentifier.vendor, deviceIdentifier.product),
-                type));
-        if (!productPath.isEmpty()) {
-            return productPath;
-        }
-    }
-
-    // Try device name.
-    return getInputDeviceConfigurationFilePathByName(deviceIdentifier.name, type);
-}
-
-String8 getInputDeviceConfigurationFilePathByName(
-        const String8& name, InputDeviceConfigurationFileType type) {
-    // Search system repository.
-    String8 path;
-    path.setTo(getenv("ANDROID_ROOT"));
-    path.append("/usr/");
-    appendInputDeviceConfigurationFileRelativePath(path, name, type);
-#if DEBUG_PROBE
-    ALOGD("Probing for system provided input device configuration file: path='%s'", path.string());
-#endif
-    if (!access(path.string(), R_OK)) {
-#if DEBUG_PROBE
-        ALOGD("Found");
-#endif
-        return path;
-    }
-
-    // Search user repository.
-    // TODO Should only look here if not in safe mode.
-    path.setTo(getenv("ANDROID_DATA"));
-    path.append("/system/devices/");
-    appendInputDeviceConfigurationFileRelativePath(path, name, type);
-#if DEBUG_PROBE
-    ALOGD("Probing for system user input device configuration file: path='%s'", path.string());
-#endif
-    if (!access(path.string(), R_OK)) {
-#if DEBUG_PROBE
-        ALOGD("Found");
-#endif
-        return path;
-    }
-
-    // Not found.
-#if DEBUG_PROBE
-    ALOGD("Probe failed to find input device configuration file: name='%s', type=%d",
-            name.string(), type);
-#endif
-    return String8();
-}
-
-
 // --- InputEvent ---
 
 void InputEvent::initialize(int32_t deviceId, int32_t source) {
@@ -1222,57 +1133,4 @@ void VelocityControl::move(nsecs_t eventTime, float* deltaX, float* deltaY) {
     }
 }
 
-
-// --- InputDeviceInfo ---
-
-InputDeviceInfo::InputDeviceInfo() {
-    initialize(-1, String8("uninitialized device info"), String8("unknown"));
-}
-
-InputDeviceInfo::InputDeviceInfo(const InputDeviceInfo& other) :
-        mId(other.mId), mName(other.mName), mDescriptor(other.mDescriptor),
-        mSources(other.mSources),
-        mKeyboardType(other.mKeyboardType),
-        mKeyCharacterMapFile(other.mKeyCharacterMapFile),
-        mMotionRanges(other.mMotionRanges) {
-}
-
-InputDeviceInfo::~InputDeviceInfo() {
-}
-
-void InputDeviceInfo::initialize(int32_t id, const String8& name, const String8& descriptor) {
-    mId = id;
-    mName = name;
-    mDescriptor = descriptor;
-    mSources = 0;
-    mKeyboardType = AINPUT_KEYBOARD_TYPE_NONE;
-    mMotionRanges.clear();
-}
-
-const InputDeviceInfo::MotionRange* InputDeviceInfo::getMotionRange(
-        int32_t axis, uint32_t source) const {
-    size_t numRanges = mMotionRanges.size();
-    for (size_t i = 0; i < numRanges; i++) {
-        const MotionRange& range = mMotionRanges.itemAt(i);
-        if (range.axis == axis && range.source == source) {
-            return &range;
-        }
-    }
-    return NULL;
-}
-
-void InputDeviceInfo::addSource(uint32_t source) {
-    mSources |= source;
-}
-
-void InputDeviceInfo::addMotionRange(int32_t axis, uint32_t source, float min, float max,
-        float flat, float fuzz) {
-    MotionRange range = { axis, source, min, max, flat, fuzz };
-    mMotionRanges.add(range);
-}
-
-void InputDeviceInfo::addMotionRange(const MotionRange& range) {
-    mMotionRanges.add(range);
-}
-
 } // namespace android