1 /* 2 * Copyright (C) 2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef ACCESSIBLE_ABILITY_CHANNEL_PROXY_H 17 #define ACCESSIBLE_ABILITY_CHANNEL_PROXY_H 18 19 #include "accessibility_ipc_interface_code.h" 20 #include "i_accessible_ability_channel.h" 21 #include "iremote_proxy.h" 22 23 namespace OHOS { 24 namespace Accessibility { 25 class AccessibleAbilityChannelProxy : public IRemoteProxy<IAccessibleAbilityChannel> { 26 public: 27 /** 28 * @brief construct function 29 * @param object The object of IPC 30 */ 31 explicit AccessibleAbilityChannelProxy(const sptr<IRemoteObject> &object); 32 33 /** 34 * @brief destruct function 35 */ 36 virtual ~AccessibleAbilityChannelProxy() = default; 37 38 /** 39 * @brief Searches elementInfo by accessibility id and set the result by callback through the proxy object. 40 * @param accessibilityWindowId The id of accessibility window. 41 * @param elementId The unique id of the component ID. 42 * @param requestId Matched the request and response. It needn't cared by ACE, transfer it by callback only. 43 * @param callback To transfer the element info to ASAC. 44 * @param mode PREFETCH_PREDECESSORS: Need to make the parent element info also. 45 * PREFETCH_SIBLINGS: Need to make the sister/brothers element info also. 46 * PREFETCH_CHILDREN: Need to make the child element info also. 47 * otherwise: Make the element information by elementId only. 48 * @return Return RET_OK if search elementInfo successfully, otherwise refer to the RetError for the failure. 49 */ 50 virtual RetError SearchElementInfoByAccessibilityId(const int32_t accessibilityWindowId, 51 const int64_t elementId, const int32_t requestId, const sptr<IAccessibilityElementOperatorCallback> &callback, 52 const int32_t mode) override; 53 54 /** 55 * @brief Make the child element information by accessibility ID and filtered by text and 56 * set the result by callback through the proxy object. 57 * @param accessibilityWindowId The id of accessibility window. 58 * @param elementId: The unique id of the component ID. 59 * @param text Filter for the child components to matched with the text 60 * @param requestId Matched the request and response. It needn't cared by ACE, transfer it by callback only. 61 * @param callback To transfer the element info to ASAC and it defined by ASAC. 62 * @return Return RET_OK if search elementInfo successfully, otherwise refer to the RetError for the failure. 63 */ 64 virtual RetError SearchElementInfosByText(const int32_t accessibilityWindowId, const int64_t elementId, 65 const std::string &text, const int32_t requestId, 66 const sptr<IAccessibilityElementOperatorCallback> &callback) override; 67 68 /** 69 * @brief Make the element information of the component focused 70 * by the focus type specified through the proxy object. 71 * @param accessibilityWindowId The id of accessibility window. 72 * @param elementId: The unique id of the component ID. 73 * @param focusType FOCUS_TYPE_ACCESSIBILITY: accessibility focus 74 * FOCUS_TYPE_INPUT: text input focus 75 * @param requestId Matched the request and response. It needn't cared by ACE, transfer it by callback only. 76 * @param callback To transfer the element info to ASAC and it defined by ASAC. 77 * @return Return RET_OK if find elementInfo successfully, otherwise refer to the RetError for the failure. 78 */ 79 virtual RetError FindFocusedElementInfo(const int32_t accessibilityWindowId, const int64_t elementId, 80 const int32_t focusType, const int32_t requestId, 81 const sptr<IAccessibilityElementOperatorCallback> &callback) override; 82 83 /** 84 * @brief Make the element info by current focus move direction through the proxy object. 85 * @param accessibilityWindowId The id of accessibility window. 86 * @param elementId: The unique id of the component ID. 87 * @param direction Refer to AccessibilityElementInfo.FocusMoveDirection(UP/DOWN/LEFT/RIGHT/FORWARD/BACKWARD) 88 * @param requestId Matched the request and response. It needn't cared by ACE, transfer it by callback only. 89 * @param callback To transfer the element info to ASAC and it defined by ASAC. 90 * @return Return RET_OK if search elementInfo successfully, otherwise refer to the RetError for the failure. 91 */ 92 virtual RetError FocusMoveSearch(const int32_t accessibilityWindowId, const int64_t elementId, 93 const int32_t direction, const int32_t requestId, 94 const sptr<IAccessibilityElementOperatorCallback> &callback) override; 95 96 /** 97 * @brief To perform action through the proxy object. 98 * @param accessibilityWindowId The id of accessibility window. 99 * @param elementId: The unique id of the component ID. 100 * @param action Refer to [AccessibilityElementInfo.ActionType] 101 * @param actionArguments The parameter for action type. 102 * @param requestId Matched the request and response. It needn't cared by ACE, transfer it by callback only. 103 * @param callback To transfer the node info to ASAC and it defined by ASAC. 104 * @return Return RET_OK if perform action successfully, otherwise refer to the RetError for the failure. 105 */ 106 virtual RetError ExecuteAction(const int32_t accessibilityWindowId, const int64_t elementId, const int32_t action, 107 const std::map<std::string, std::string> &actionArguments, const int32_t requestId, 108 const sptr<IAccessibilityElementOperatorCallback> &callback) override; 109 110 /** 111 * @brief Get the window information related with the event 112 * @param windowId The window id. 113 * @param windowInfo The window information. 114 * @return Return RET_OK if obtains windowInfo successfully, otherwise refer to the RetError for the failure. 115 */ 116 virtual RetError GetWindow(const int32_t windowId, AccessibilityWindowInfo &windowInfo) override; 117 118 /** 119 * @brief Obtains the list of interactive windows on the device, in the layers they are visible to users. 120 * @param windows The information of windows. 121 * @return Return RET_OK if obtains windowInfo successfully, otherwise refer to the RetError for the failure. 122 */ 123 virtual RetError GetWindows(std::vector<AccessibilityWindowInfo> &windows) override; 124 125 /** 126 * @brief Obtains the list of interactive windows on the device, in the layers they are visible to users. 127 * @param displayId the id of display 128 * @param windows The information of windows. 129 * @return Return RET_OK if obtains windowInfo successfully, otherwise refer to the RetError for the failure. 130 */ 131 virtual RetError GetWindowsByDisplayId(const uint64_t displayId, 132 std::vector<AccessibilityWindowInfo> &windows) override; 133 134 /** 135 * @brief Set the result of key press event through the proxy object. 136 * @param handled The result of key press event, true if the event has been consumed, otherwise false. 137 * @param sequence The sequence of key press event result. 138 */ 139 virtual void SetOnKeyPressEventResult(const bool handled, const int32_t sequence) override; 140 141 /** 142 * @brief Send simulation gesture through the proxy object. 143 * @param gesturePath The gesture path to send. 144 * @return Return RET_OK if gesture injection is successfully, otherwise refer to the RetError for the failure. 145 */ 146 virtual RetError SendSimulateGesture(const std::shared_ptr<AccessibilityGestureInjectPath>& gesturePath) override; 147 148 /** 149 * @brief Set target bundle names. 150 * @param targetBundleNames The target bundle name 151 * @return Return RET_OK if sets target bundle names successfully, otherwise refer to the RetError for the failure. 152 */ 153 virtual RetError SetTargetBundleName(const std::vector<std::string> &targetBundleNames) override; 154 155 private: 156 /** 157 * @brief Write the descriptor of IPC. 158 * @param data It is include the descriptor of IPC. 159 * @return true: Write the descriptor successfully; otherwise is not. 160 */ 161 bool WriteInterfaceToken(MessageParcel &data); 162 /** 163 * @brief Send the command data from proxy to stub in IPC mechanism. 164 * @param code The code matched the function called. 165 * @param data Serializable data 166 * @param reply The response of IPC 167 * @param option The option parameter of IPC,such as: async,sync 168 * @return true: Write the descriptor successfully; otherwise is not. 169 */ 170 bool SendTransactCmd(AccessibilityInterfaceCode code, MessageParcel &data, 171 MessageParcel &reply, MessageOption &option); 172 static inline BrokerDelegator<AccessibleAbilityChannelProxy> delegator; 173 }; 174 } // namespace Accessibility 175 } // namespace OHOS 176 #endif // ACCESSIBLE_ABILITY_CHANNEL_PROXY_H