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https://gitee.com/energye/energy.git
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334 lines
10 KiB
Go
334 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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bindValue(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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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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if _, ok := m.bindMapping[fullName]; !ok {
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m.bindMapping[fullName] = value
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}
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}
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func (m *variableBind) removeBind(fullName string) {
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m.lock.Lock()
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defer m.lock.Unlock()
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delete(m.bindMapping, fullName)
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}
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func (m *variableBind) bindValue(fullName string) (JSValue, bool) {
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value, ok := m.bindMapping[fullName]
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return value, ok
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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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//
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// 主进程和子进程
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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
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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.rwLock = new(sync.Mutex)
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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
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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.rwLock = new(sync.Mutex)
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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
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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.rwLock = new(sync.Mutex)
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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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// NewBool V8Value
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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.rwLock = new(sync.Mutex)
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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
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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.rwLock = new(sync.Mutex)
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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
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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.rwLock = new(sync.Mutex)
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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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//
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// 绑定 定义的普通函数 prefix default struct name
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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.rwLock = new(sync.Mutex)
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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.setPtr(unsafe.Pointer(&jsValue))
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jsValue.setInstance(uintptr(jsValue.Ptr()))
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jsValue.setEventId(uintptr(__bind_id()))
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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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bindObject(objects...)
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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, 在Go中定义绑定到JS中
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//
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// 支持类型 String = string , Integer = int32 , Double = float64, Boolean = bool, Function = func, ObjectInfos = struct | map, Array = Slice
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//
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// 返回nil表示绑定成功
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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("绑定字段 %s: 应传递绑定变量指针", 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 = GO_VALUE_FUNC
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jsv = 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("类型错误, 支持类型: string, int32, float64, bool, func, struct, map, slice")
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}
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value = &V8Value{
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name: name,
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rwLock: new(sync.Mutex),
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valueType: &VT{
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Jsv: jsv,
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Gov: gov,
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},
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//isCommonObject: IS_OBJECT,
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//eventId: uintptr(__bind_id()),
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}
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//分解类型
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if jsv == V8_VALUE_FUNCTION && isMainProcess { //function
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if info, err := checkFunc(reflect.TypeOf(bind), FN_TYPE_OBJECT); err == nil {
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value.funcInfo = info
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value.ptr = unsafe.Pointer(&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 if isMainProcess { //field
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switch jsv {
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case V8_VALUE_STRING:
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value.ptr = 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.ptr = unsafe.Pointer(bind.(*int))
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case GO_VALUE_INT8:
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value.ptr = unsafe.Pointer(bind.(*int8))
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case GO_VALUE_INT16:
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value.ptr = unsafe.Pointer(bind.(*int16))
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case GO_VALUE_INT32:
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value.ptr = unsafe.Pointer(bind.(*int32))
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case GO_VALUE_INT64:
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value.ptr = unsafe.Pointer(bind.(*int64))
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case GO_VALUE_UINT:
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value.ptr = unsafe.Pointer(bind.(*uint))
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case GO_VALUE_UINT8:
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value.ptr = unsafe.Pointer(bind.(*uint8))
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case GO_VALUE_UINT16:
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value.ptr = unsafe.Pointer(bind.(*uint16))
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case GO_VALUE_UINT32:
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value.ptr = unsafe.Pointer(bind.(*uint32))
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case GO_VALUE_UINT64:
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value.ptr = unsafe.Pointer(bind.(*uint64))
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case GO_VALUE_UINTPTR:
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value.ptr = 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.ptr = unsafe.Pointer(bind.(*float32))
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} else {
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value.ptr = unsafe.Pointer(bind.(*float64))
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}
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case V8_VALUE_BOOLEAN:
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value.ptr = unsafe.Pointer(bind.(*bool))
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default:
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return errors.New(name + ": 不支持的绑定类型")
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}
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}
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if isMainProcess {
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value.instance = uintptr(value.ptr)
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value.value = bind
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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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