awtk-mvvm-C语言资源

/** * File: binding_context_awtk.c * Author: AWTK Develop Team * Brief: binding context awtk * * Copyright (c) 2019 - 2025 Guangzhou ZHIYUAN Electronics Co.,Ltd. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * License file for more details. * */ /** * History: * ================================================================ * 2019-01-30 Li XianJing <[email protected]> created * */ #include "tkc/str.h" #include "tkc/mem.h" #include "tkc/utils.h" #include "tkc/int_str.h" #include "tkc/darray.h" #include "tkc/tokenizer.h" #include "awtk_global.h" #include "base/idle.h" #include "base/enums.h" #include "base/widget.h" #include "base/window.h" #include "base/window_manager.h" #include "mvvm/base/data_binding.h" #include "mvvm/base/command_binding.h" #include "mvvm/base/items_binding.h" #include "mvvm/base/condition_binding.h" #include "mvvm/base/view_model_dummy.h" #include "mvvm/base/view_model_array.h" #include "mvvm/base/view_model_factory.h" #include "mvvm/base/view_model_compositor.h" #include "mvvm/base/custom_binder.h" #include "mvvm/awtk/ui_loader_mvvm.h" #include "mvvm/awtk/mvvm_awtk.h" #include "mvvm/awtk/binding_context_awtk.h" #define STR_SUB_VIEW_MODEL "sub_view_model:" #define STR_SUB_VIEW_MODEL_ARRAY "sub_view_model_array:" #define IS_COMPOSITOR_VIEW_MODEL(type) strchr(type, '+') != NULL static view_model_t* binding_context_awtk_create_one_view_model(view_model_t* parent, const char* type, navigator_request_t* req) { view_model_t* view_model = NULL; if (tk_str_start_with(type, STR_SUB_VIEW_MODEL)) { const char* name = strchr(type, ':'); return_value_if_fail(name != NULL, NULL); view_model = view_model_create_sub_view_model(parent, name + 1); } else if (tk_str_start_with(type, STR_SUB_VIEW_MODEL_ARRAY)) { const char* name = strchr(type, ':'); return_value_if_fail(name != NULL, NULL); view_model = view_model_create_sub_view_model_array(parent, name + 1); } else { if (req != NULL) { req->parent_view_model = TK_OBJECT(parent); } view_model = view_model_factory_create_model(type, req); } return view_model; } static view_model_t* binding_context_awtk_create_view_model(view_model_t* parent, const char* type, navigator_request_t* req) { view_model_t* view_model = NULL; if (type != NULL) { if (IS_COMPOSITOR_VIEW_MODEL(type)) { tokenizer_t t; view_model_t* compositor = view_model_compositor_create(req); return_value_if_fail(compositor != NULL, NULL); tokenizer_init(&t, type, strlen(type), "+"); while (tokenizer_has_more(&t)) { const char* type1 = tokenizer_next(&t); view_model_t* vm = binding_context_awtk_create_one_view_model(parent, type1, req); if (vm != NULL) { if (view_model_compositor_add(compositor, vm) != RET_OK) { log_warn("view_model_compositor_add failed\n"); TK_OBJECT_UNREF(vm); } } else { log_warn("create \"%s\" view_model failed\n", type1); } } tokenizer_deinit(&t); view_model = compositor; } else { view_model = binding_context_awtk_create_one_view_model(parent, type, req); } } else { if (req != NULL) { req->parent_view_model = TK_OBJECT(parent); } view_model = view_model_factory_create_model_generic(type, req); } if (view_model == NULL) { if (type != NULL) { log_warn("%s not found view_model \"%s\"\n", __FUNCTION__, type); } view_model = view_model_dummy_create(req); } return view_model; } static ret_t visit_data_binding_update_error_of(void* ctx, const void* data) { data_binding_t* rule = DATA_BINDING((void*)data); data_binding_t* trigger_rule = DATA_BINDING(ctx); view_model_t* view_model = BINDING_RULE_VIEW_MODEL(trigger_rule); return_value_if_fail(rule != NULL, RET_BAD_PARAMS); return_value_if_fail(trigger_rule != NULL, RET_BAD_PARAMS); return_value_if_fail(view_model != NULL, RET_BAD_PARAMS); if (tk_str_start_with(rule->path, DATA_BINDING_ERROR_OF)) { const char* path = rule->path + sizeof(DATA_BINDING_ERROR_OF) - 1; if (tk_str_eq(path, trigger_rule->path)) { widget_t* widget = WIDGET(BINDING_RULE_WIDGET(rule)); widget_set_tr_text(widget, view_model->last_error.str); } } return RET_OK; } static ret_t widget_visit_data_binding_update_error_of(void* ctx, const void* data) { darray_t* node = (darray_t*)data; return_value_if_fail(node != NULL, RET_BAD_PARAMS); return darray_foreach(node, visit_data_binding_update_error_of, ctx); } static ret_t binding_context_update_error_of(data_binding_t* rule) { binding_context_t* ctx = BINDING_RULE_CONTEXT(rule); view_model_t* view_model = BINDING_RULE_VIEW_MODEL(rule); return_value_if_fail(ctx != NULL && view_model != NULL, RET_BAD_PARAMS); slist_foreach(&(ctx->data_bindings), widget_visit_data_binding_update_error_of, rule); return RET_OK; } static ret_t on_widget_prop_change(void* ctx, event_t* e) { data_binding_t* rule = DATA_BINDING(ctx); prop_change_event_t* evt = prop_change_event_cast(e); return_value_if_fail(evt != NULL && rule != NULL, RET_BAD_PARAMS); if (tk_str_eq(evt->name, rule->prop)) { data_binding_set_prop(rule, evt->value); binding_context_update_error_of(rule); } return RET_OK; } static ret_t on_widget_value_change(void* ctx, event_t* e) { value_t v; widget_t* widget = WIDGET(e->target); data_binding_t* rule = DATA_BINDING(ctx); binding_context_t* bctx = BINDING_RULE_CONTEXT(rule); return_value_if_fail(widget != NULL && rule != NULL && bctx != NULL, RET_BAD_PARAMS); return_value_if_fail(widget_get_prop(widget, rule->prop, &v) == RET_OK, RET_OK); if (!bctx->updating_view) { bctx->updating_view_by_ui = TRUE; } data_binding_set_prop(rule, &v); binding_context_update_error_of(rule); return RET_OK; } static ret_t widget_set_prop_if_diff(widget_t* widget, const char* name, const value_t* v, bool_t set_force) { value_t old; return_value_if_fail(widget != NULL && widget->vt != NULL, RET_BAD_PARAMS); if (!set_force) { if (widget->vt->inputable) { if (tk_str_eq(name, WIDGET_PROP_TEXT) || tk_str_eq(name, WIDGET_PROP_VALUE)) { value_t inputing; if (widget_get_prop(widget, WIDGET_PROP_INPUTING, &inputing) == RET_OK) { if (value_bool(&inputing)) { log_debug("%s is inputing, skip.\n", widget_get_type(widget)); return RET_OK; } } } } value_set_int(&old, 0); if (widget_get_prop(widget, name, &old) == RET_OK) { if (value_equal(&old, v)) { return RET_OK; } } } return widget_set_prop(widget, name, v); } static ret_t binding_context_awtk_update_data(data_binding_t* rule, bool_t force) { binding_context_t* ctx = BINDING_RULE_CONTEXT(rule); view_model_t* view_model = BINDING_RULE_VIEW_MODEL(rule); return_value_if_fail(ctx != NULL && view_model != NULL, RET_BAD_PARAMS); if (tk_object_is_collection(TK_OBJECT(view_model))) { uint32_t size = view_model_get_items_size(TK_OBJECT(view_model)); binding_context_t* context = BINDING_RULE_CONTEXT(rule); uint32_t cursor = binding_context_get_items_cursor_of_rule(context, BINDING_RULE(rule)); /*用于去掉TableView绑定时大量无用警告*/ if (cursor >= size && cursor > 0) { return RET_OK; } } if (tk_str_start_with(rule->path, DATA_BINDING_ERROR_OF)) { return RET_OK; } if (rule->mode == BINDING_ONE_WAY || rule->mode == BINDING_TWO_WAY || (rule->mode == BINDING_ONCE && !(ctx->bound