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https://gitee.com/energye/energy.git
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331 lines
10 KiB
Go
331 lines
10 KiB
Go
//----------------------------------------
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//
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// Copyright © yanghy. All Rights Reserved.
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//
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// Licensed under Apache License Version 2.0, January 2004
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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//----------------------------------------
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// energy 变量相关
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package cef
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import (
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"errors"
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"fmt"
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"github.com/energye/energy/common"
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. "github.com/energye/energy/consts"
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"reflect"
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"sync"
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"unsafe"
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)
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var (
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nullptr unsafe.Pointer = nil //
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isMainProcess, isRenderProcess bool //
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)
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type initBindVariableCallback func(browser *ICefBrowser, frame *ICefFrame, bind IProvisionalBindStorage)
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// VariableBind 变量绑定
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var VariableBind IProvisionalBindStorage
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type IProvisionalBindStorage interface {
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VariableCreateCallback(callback func(browser *ICefBrowser, frame *ICefFrame, bind IProvisionalBindStorage))
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NewString(name, value string) *JSString //通用类型 - 默认: string
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NewInteger(name string, value int32) *JSInteger //通用类型 - 默认: integer
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NewDouble(name string, value float64) *JSDouble //通用类型 - 默认: double
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NewBoolean(name string, value bool) *JSBoolean //通用类型 - 默认: boolean
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NewNull(name string) *JSNull //通用类型 - 默认: null
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NewUndefined(name string) *JSUndefined //通用类型 - 默认: undefined
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NewFunction(name string, fn interface{}) error //固定类型 - function
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NewObjects(objects ...interface{}) //固定类型 - object - struct
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Bind(name string, bind interface{}) error //固定类型 - 所有支持类型
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getBindValue(fullName string) (JSValue, bool) //
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binds() map[string]JSValue //
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bindCount() int //
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callVariableBind(browser *ICefBrowser, frame *ICefFrame) //
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addBind(fullName string, value JSValue) //
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}
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type variableBind struct {
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initBindVariableCallback initBindVariableCallback //
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bindMapping map[string]JSValue //所有绑定变量属性或函数集合
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lock sync.Mutex //add bind, remove bind lock
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}
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// VT 字段类型
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type VT struct {
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Jsv V8_JS_VALUE_TYPE `json:"jsv"`
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Gov GO_VALUE_TYPE `json:"gov"`
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}
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// 函数详情 1.参数个数 2.每个参数类型 3.返回参数类型
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type funcInfo struct {
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InNum int32 `json:"inNum"` //入参个数
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InParam []*VT `json:"inParam"` //入参类型
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OutNum int32 `json:"outNum"` //出参个数
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OutParam []*VT `json:"outParam"` //出参类型
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OutParamErrIdx int32 `json:"outParamErrIdx"` //出参错误位置
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OutParamIdx int32 `json:"outParamIdx"` //出参位置
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FnType FN_TYPE `json:"fnType"` //函数类型, 直接定义函数或对象函数
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}
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// functionInfo 结构的函数描述
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type functionInfo struct {
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EventId uintptr `json:"event_id"`
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*funcInfo
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Method reflect.Value `json:"-"`
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}
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func init() {
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isMainProcess = common.Args.IsMain()
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isRenderProcess = common.Args.IsRender()
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VariableBind = &variableBind{bindMapping: make(map[string]JSValue)}
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fmt.Println("isMainProcess:", isMainProcess, "isRenderProcess:", isRenderProcess)
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}
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func (m *variableBind) addBind(fullName string, value JSValue) {
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m.lock.Lock()
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defer m.lock.Unlock()
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m.bindMapping[fullName] = value
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}
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func (m *variableBind) getBindValue(fullName string) (value JSValue, ok bool) {
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m.lock.Lock()
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defer m.lock.Unlock()
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value, ok = m.bindMapping[fullName]
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return
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}
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func (m *variableBind) binds() map[string]JSValue {
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return m.bindMapping
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}
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func (m *variableBind) bindCount() int {
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return len(m.bindMapping)
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}
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// VariableCreateCallback
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//
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// # Go 和 javaScript 的函数或变量绑定声明初始函数
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//
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// 在 javaScript 中调用Go中的（函数,变量）需要在此回调函数中绑定
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func (m *variableBind) VariableCreateCallback(callback func(browser *ICefBrowser, frame *ICefFrame, bind IProvisionalBindStorage)) {
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m.initBindVariableCallback = callback
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}
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// 调用变量绑定回调函数
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//
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// 在主进程和渲染进程创建时调用
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func (m *variableBind) callVariableBind(browser *ICefBrowser, frame *ICefFrame) {
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if m.initBindVariableCallback != nil {
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m.initBindVariableCallback(browser, frame, m)
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}
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}
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// NewString V8Value 通用类型, 默认 string
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func (m *variableBind) NewString(name, value string) *JSString {
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jsValueBind := new(JSString)
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jsValueBind.valueType = new(VT)
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jsValueBind.name = name
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jsValueBind.value = value
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jsValueBind.valueType.Jsv = V8_VALUE_STRING
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jsValueBind.valueType.Gov = GO_VALUE_STRING
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m.bindValueHandle(jsValueBind)
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return jsValueBind
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}
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// NewInteger V8Value 通用类型, 默认 integer
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func (m *variableBind) NewInteger(name string, value int32) *JSInteger {
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jsValueBind := new(JSInteger)
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jsValueBind.valueType = new(VT)
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jsValueBind.name = name
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jsValueBind.value = value
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jsValueBind.valueType.Jsv = V8_VALUE_INT
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jsValueBind.valueType.Gov = GO_VALUE_INT32
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m.bindValueHandle(jsValueBind)
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return jsValueBind
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}
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// NewDouble V8Value 通用类型, 默认 double
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func (m *variableBind) NewDouble(name string, value float64) *JSDouble {
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jsValueBind := new(JSDouble)
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jsValueBind.valueType = new(VT)
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jsValueBind.name = name
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jsValueBind.value = value
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jsValueBind.valueType.Jsv = V8_VALUE_DOUBLE
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jsValueBind.valueType.Gov = GO_VALUE_FLOAT64
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m.bindValueHandle(jsValueBind)
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return jsValueBind
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}
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// NewBoolean V8Value 通用类型, 默认 boolean
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func (m *variableBind) NewBoolean(name string, value bool) *JSBoolean {
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jsValueBind := new(JSBoolean)
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jsValueBind.valueType = new(VT)
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jsValueBind.name = name
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jsValueBind.value = value
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jsValueBind.valueType.Jsv = V8_VALUE_BOOLEAN
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jsValueBind.valueType.Gov = GO_VALUE_BOOL
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m.bindValueHandle(jsValueBind)
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return jsValueBind
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}
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// NewNull V8Value 通用类型, 默认 null
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func (m *variableBind) NewNull(name string) *JSNull {
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jsValueBind := new(JSNull)
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jsValueBind.valueType = new(VT)
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jsValueBind.name = name
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jsValueBind.value = "null"
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jsValueBind.valueType.Jsv = V8_VALUE_NULL
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jsValueBind.valueType.Gov = GO_VALUE_NIL
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m.bindValueHandle(jsValueBind)
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return jsValueBind
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}
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// NewUndefined V8Value 通用类型, 默认 undefined
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func (m *variableBind) NewUndefined(name string) *JSUndefined {
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jsValueBind := new(JSUndefined)
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jsValueBind.valueType = new(VT)
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jsValueBind.name = name
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jsValueBind.value = "undefined"
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jsValueBind.valueType.Jsv = V8_VALUE_UNDEFINED
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jsValueBind.valueType.Gov = GO_VALUE_STRING
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m.bindValueHandle(jsValueBind)
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return jsValueBind
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}
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// NewFunction V8Value
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func (m *variableBind) NewFunction(name string, fn interface{}) error {
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if gov, _ := common.FieldReflectType(fn); gov == GO_VALUE_FUNC {
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if info, err := checkFunc(reflect.TypeOf(fn), FN_TYPE_COMMON); err == nil {
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jsValueBind := new(JSFunction)
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jsValueBind.valueType = new(VT)
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jsValueBind.name = name
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jsValueBind.value = fn
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jsValueBind.valueType.Jsv = V8_VALUE_FUNCTION
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jsValueBind.valueType.Gov = GO_VALUE_FUNC
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jsValueBind.funcInfo = info
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m.bindValueHandle(jsValueBind)
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return nil
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} else {
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return err
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}
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}
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return errors.New("创建的函数不是函数类型")
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}
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// V8Value bindValueHandle
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func (m *variableBind) bindValueHandle(jsValue JSValue) {
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jsValue.setInstance(unsafe.Pointer(&jsValue))
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jsValue.setEventId(jsValue.Instance())
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jsValue.setThat(jsValue)
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m.addBind(jsValue.Name(), jsValue)
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}
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// NewObjects V8Value
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//
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// 对象类型变量和对象函数绑定
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func (m *variableBind) NewObjects(objects ...interface{}) {
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}
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// Bind V8Value
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//
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// 变量和函数绑定
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func (m *variableBind) Bind(name string, bind interface{}) error {
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if isMainProcess || isRenderProcess {
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typ := reflect.TypeOf(bind)
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kind := typ.Kind()
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if kind != reflect.Ptr && kind != reflect.Func {
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return errors.New(fmt.Sprintf("bind parameter %s needs to pass pointer", name))
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}
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var (
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gov GO_VALUE_TYPE
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jsv V8_JS_VALUE_TYPE
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value *V8Value
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)
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if kind == reflect.Func {
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gov, jsv = GO_VALUE_FUNC, V8_VALUE_FUNCTION
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} else {
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gov, jsv = common.FieldReflectType(typ.Elem())
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}
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fmt.Println("FieldReflectType:", gov, jsv)
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if gov == -1 || jsv == -1 {
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return errors.New("parameter type mismatch")
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}
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value = &V8Value{
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name: name,
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valueType: &VT{Jsv: jsv, Gov: gov},
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//isCommonObject: IS_OBJECT,
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//eventId: uintptr(__bind_id()),
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}
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if isMainProcess {
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//类型信息
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if jsv == V8_VALUE_FUNCTION { //function
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if info, err := checkFunc(typ, FN_TYPE_OBJECT); err == nil {
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value.funcInfo = info
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value.instance = unsafe.Pointer(&bind)
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value.value = reflect.ValueOf(bind)
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} else {
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return err
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}
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} else if jsv == V8_VALUE_OBJECT { //object
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if gov == GO_VALUE_STRUCT { // object - struct
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} else if gov == GO_VALUE_MAP { // object - map
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}
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} else if jsv == V8_VALUE_ARRAY { //array
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} else { //field
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switch jsv {
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case V8_VALUE_STRING:
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value.instance = unsafe.Pointer(bind.(*string))
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case V8_VALUE_INT:
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switch gov {
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case GO_VALUE_INT:
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value.instance = unsafe.Pointer(bind.(*int))
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case GO_VALUE_INT8:
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value.instance = unsafe.Pointer(bind.(*int8))
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case GO_VALUE_INT16:
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value.instance = unsafe.Pointer(bind.(*int16))
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case GO_VALUE_INT32:
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value.instance = unsafe.Pointer(bind.(*int32))
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case GO_VALUE_INT64:
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value.instance = unsafe.Pointer(bind.(*int64))
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case GO_VALUE_UINT:
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value.instance = unsafe.Pointer(bind.(*uint))
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case GO_VALUE_UINT8:
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value.instance = unsafe.Pointer(bind.(*uint8))
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case GO_VALUE_UINT16:
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value.instance = unsafe.Pointer(bind.(*uint16))
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case GO_VALUE_UINT32:
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value.instance = unsafe.Pointer(bind.(*uint32))
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case GO_VALUE_UINT64:
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value.instance = unsafe.Pointer(bind.(*uint64))
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case GO_VALUE_UINTPTR:
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value.instance = unsafe.Pointer(bind.(*uintptr))
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}
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case V8_VALUE_DOUBLE:
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if gov == GO_VALUE_FLOAT32 {
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value.instance = unsafe.Pointer(bind.(*float32))
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} else {
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value.instance = unsafe.Pointer(bind.(*float64))
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}
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case V8_VALUE_BOOLEAN:
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value.instance = unsafe.Pointer(bind.(*bool))
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default:
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return errors.New("parameter type mismatch")
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}
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value.value = bind
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}
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value.that = value
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}
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m.addBind(name, value)
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}
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return nil
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}
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