/* * Copyright (c) 2024 Huawei Device Co., Ltd. * 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. */ /** * @addtogroup ArkUI_NativeModule * @{ * * @brief Provides ArkUI UI capabilities on the Native side, such as UI component creation and destruction, * tree node operation, property setting, event monitoring, and so on. * * @since 12 */ /** * @file styled_string.h * * @brief Provides ArkUI with property string capabilities on the Native side. * * @library libace_ndk.z.so * @syscap SystemCapability.ArkUI.ArkUI.Full * @kit ArkUI * @since 12 */ #ifndef ARKUI_NATIVE_STYLED_STRING_H #define ARKUI_NATIVE_STYLED_STRING_H #include "native_drawing/drawing_text_declaration.h" #include "native_drawing/drawing_text_typography.h" #include "native_type.h" #ifdef __cplusplus extern "C" { #endif /** * @brief Defines formatted string data objects supported by the text component. * * @since 12 */ typedef struct ArkUI_StyledString ArkUI_StyledString; /** * @brief Creates a pointer to the ArkUI_StyledString object. * * @param style A pointer to OH_Drawing_TypographyStyle, obtained by {@link OH_Drawing_CreateTypographyStyle}. * @param collection A pointer to OH_Drawing_FontCollection, obtained by {@link OH_Drawing_CreateFontCollection}. * @return Creates a pointer to the ArkUI_StyledString object. If the object returns a null pointer, * the creation failed, either because the address space was full, * or because the style, collection parameter was an exception such as a null pointer. * @since 12 */ ArkUI_StyledString* OH_ArkUI_StyledString_Create( OH_Drawing_TypographyStyle* style, OH_Drawing_FontCollection* collection); /** * @brief Free the memory occupied by the ArkUI_StyledString object. * * @param handle A pointer to the ArkUI_StyledString object. * @since 12 */ void OH_ArkUI_StyledString_Destroy(ArkUI_StyledString* handle); /** * @brief Sets the new layout style to the top of the current format string style stack. * * @param handle A pointer to the ArkUI_StyledString object. * @param style A pointer to the OH_Drawing_TextStyle object. * @since 12 */ void OH_ArkUI_StyledString_PushTextStyle(ArkUI_StyledString* handle, OH_Drawing_TextStyle* style); /** * @brief Sets the corresponding text content based on the current format string style. * * @param handle A pointer to the ArkUI_StyledString object. * @param content A pointer to the text content. * @since 12 */ void OH_ArkUI_StyledString_AddText(ArkUI_StyledString* handle, const char* content); /** * @brief Removes the top style from the stack in the current format string object. * * @param handle A pointer to the ArkUI_StyledString object. * @since 12 */ void OH_ArkUI_StyledString_PopTextStyle(ArkUI_StyledString* handle); /** * @brief Creates a pointer to an OH_Drawing_Typography object based on a format string object * for advanced text estimation and typography. * * @param handle A pointer to the ArkUI_StyledString object. * @return A pointer to the OH_Drawing_Typography object. If the object returns a null pointer, * the creation fails because the handle parameter is abnormal, such as a null pointer. * @since 12 */ OH_Drawing_Typography* OH_ArkUI_StyledString_CreateTypography(ArkUI_StyledString* handle); /** * @brief Set the placeholder. * * @param handle A pointer to the ArkUI_StyledString object. * @param placeholder A pointer to the OH_Drawing_PlaceholderSpan object. * @since 12 */ void OH_ArkUI_StyledString_AddPlaceholder(ArkUI_StyledString* handle, OH_Drawing_PlaceholderSpan* placeholder); /** * @brief Creates an ArkUI_StyledString_Descriptor object. * * @return Returns the pointer to the ArkUI_StyledString_Descriptor object created. * @since 14 */ ArkUI_StyledString_Descriptor* OH_ArkUI_StyledString_Descriptor_Create(void); /** * @brief Destroys an ArkUI_StyledString_Descriptor object and reclaims the memory occupied by the object. * * @param descriptor Pointer to an ArkUI_StyledString_Descriptor object. * @since 14 */ void OH_ArkUI_StyledString_Descriptor_Destroy(ArkUI_StyledString_Descriptor* descriptor); /** * @brief Converts styled string information into HTML. * * @param descriptor Pointer to an ArkUI_StyledString_Descriptor object. * @return Returns the pointer to the resulting HTML string. This pointer is managed internally and should be destroyed * by calling OH_ArkUI_StyledString_Descriptor_Destroy() when no longer needed to free the memory. * @since 14 */ const char* OH_ArkUI_ConvertToHtml(ArkUI_StyledString_Descriptor* descriptor); /** * @brief Deserializes a byte array containing styled string information into a styled string. * * @param buffer Byte array to be deserialized. * @param bufferSize Length of the byte array. * @param descriptor Pointer to an ArkUI_StyledString_Descriptor object. * @return Returns the result code. * Returns {@link ARKUI_ERROR_CODE_NO_ERROR} if the operation is successful. * Returns {@link ARKUI_ERROR_CODE_PARAM_INVALID} if a parameter error occurs. * @since 14 */ int32_t OH_ArkUI_UnmarshallStyledStringDescriptor( uint8_t* buffer, size_t bufferSize, ArkUI_StyledString_Descriptor* descriptor); /** * @brief Serializes the styled string information into a byte array. * * @param buffer Byte array where the serialized data will be stored. * @param bufferSize Length of the byte array. * @param descriptor Pointer to an ArkUI_StyledString_Descriptor object. * @param resultSize Actual length of the byte array. * @return Returns the result code. * Returns {@link ARKUI_ERROR_CODE_NO_ERROR} if the operation is successful. * Returns {@link ARKUI_ERROR_CODE_PARAM_INVALID} if a parameter error occurs. * Returns {@link ARKUI_ERROR_CODE_INVALID_STYLED_STRING} if the styled string is invalid. * @since 14 */ int32_t OH_ArkUI_MarshallStyledStringDescriptor( uint8_t* buffer, size_t bufferSize, ArkUI_StyledString_Descriptor* descriptor, size_t* resultSize); #ifdef __cplusplus }; #endif #endif // ARKUI_NATIVE_STYLED_STRING_H /** @} */