mirror of
https://gitee.com/energye/energy.git
synced 2024-11-30 10:47:57 +08:00
233 lines
6.5 KiB
Go
233 lines
6.5 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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// CEF Chromium组件
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package cef
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import (
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. "github.com/energye/energy/common"
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. "github.com/energye/energy/consts"
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"github.com/energye/energy/ipc"
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"github.com/energye/golcl/lcl"
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"github.com/energye/golcl/lcl/types"
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"sync"
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"unsafe"
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)
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var executeJS = &ExecuteJS{
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msgID: &MsgID{},
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emitSync: &ipc.EmitSyncCollection{Mutex: new(sync.Mutex), EmitCollection: sync.Map{}},
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emitCallback: &ipc.EmitCallbackCollection{EmitCollection: sync.Map{}},
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}
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type ExecuteJS struct {
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msgID *MsgID //ipc 消息ID生成
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emitCallback *ipc.EmitCallbackCollection //回调函数集合
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emitSync *ipc.EmitSyncCollection //触发同步事件集合
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}
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// IChromium 组件接口
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type IChromium interface {
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IChromiumProc
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IChromiumEvent
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}
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// TCEFChromium 组件
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type TCEFChromium struct {
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*lcl.TComponent
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instance unsafe.Pointer
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cfg *tCefChromiumConfig
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browser *ICefBrowser
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emitLock *sync.Mutex
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browserHandle types.HWND
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widgetHandle types.HWND
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renderHandle types.HWND
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}
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// NewChromium 创建一个新的 TCEFChromium
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func NewChromium(owner lcl.IComponent, config *tCefChromiumConfig) IChromium {
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m := new(TCEFChromium)
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if config != nil {
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m.cfg = config
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} else {
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m.cfg = NewChromiumConfig()
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}
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m.instance = unsafe.Pointer(_CEFChromium_Create(lcl.CheckPtr(owner), uintptr(unsafe.Pointer(m.cfg))))
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m.emitLock = new(sync.Mutex)
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m.initDefault()
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return m
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}
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// 默认的初始配置
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func (m *TCEFChromium) initDefault() {
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//通过设置这些首选项，可以降低/避免WebRTC的IP泄漏
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m.SetWebRTCIPHandlingPolicy(HpDisableNonProxiedUDP)
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m.SetWebRTCMultipleRoutes(STATE_DISABLED)
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m.SetWebRTCNonproxiedUDP(STATE_DISABLED)
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}
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// Instance 组件实例指针
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func (m *TCEFChromium) Instance() uintptr {
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if m == nil || m.instance == nil {
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return 0
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}
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return uintptr(m.instance)
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}
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func (m *TCEFChromium) browseEmitJsOnEvent(browseId int32, frameId int64, name string, argumentList ipc.IArgumentList) ProcessMessageError {
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//data := argumentList.Package()
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//r1 := _CEFFrame_SendProcessMessageByIPC(browseId, frameId, name, PID_RENDER, int32(argumentList.Size()), uintptr(unsafe.Pointer(&data[0])), uintptr(len(data)))
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//return ProcessMessageError(r1)
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return 1 //TODO dev
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}
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// On 监听事件,事件驱动在Go中监听，JS中触发
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func (m *TCEFChromium) On(name string, eventCallback ipc.EventCallback) {
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if eventCallback == nil {
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return
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}
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ipc.IPC.Browser().On(name, eventCallback)
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}
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// ExecuteJavaScript
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// 执行JS代码
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//
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// code: js代码
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//
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// scriptURL: js脚本地址 默认about:blank
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//
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// startLine: js脚本启始执行行号
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func (m *TCEFChromium) ExecuteJavaScript(code, scriptURL string, startLine int32) {
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_CEFChromium_ExecuteJavaScript(uintptr(m.instance), code, scriptURL, startLine)
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}
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// Emit
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// 触发JS监听的事件-异步执行
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//
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// EmitTarget 接收目标, nil:mainBrowser&mainFrame, 可传递browser和指定浏览器窗口，JS监听事件的接收
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func (m *TCEFChromium) Emit(eventName string, args ipc.IArgumentList, target IEmitTarget) ProcessMessageError {
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if eventName == "" {
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return PMErr_NAME_IS_NULL
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}
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m.emitLock.Lock()
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defer m.emitLock.Unlock()
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var (
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browseId int32
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frameId int64
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)
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if args == nil {
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args = ipc.NewArgumentList()
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}
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if target == nil {
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bsr := m.Browser()
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browseId = bsr.Identifier()
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frameId = bsr.MainFrame().Identifier()
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} else {
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browseId = target.GetBrowserId()
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frameId = target.GetFrameId()
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if m.BrowserById(browseId).GetFrameById(frameId) == nil {
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return PMErr_NOT_FOUND_FRAME
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}
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}
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var idx = args.Size()
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args.SetInt32(idx, int32(Tm_Async))
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args.SetInt32(idx+1, 0)
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args.SetString(idx+2, eventName, true)
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m.browseEmitJsOnEvent(browseId, frameId, ipc.Ln_IPC_GoEmitJS, args)
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return PME_OK
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}
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// EmitAndCallback
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// 触发JS监听的事件-异步执行-带回调
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//
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// EmitTarget 接收目标, nil = mainBrowser mainFrame
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func (m *TCEFChromium) EmitAndCallback(eventName string, args ipc.IArgumentList, target IEmitTarget, callback ipc.IPCCallback) ProcessMessageError {
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if eventName == "" {
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return PMErr_NAME_IS_NULL
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}
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m.emitLock.Lock()
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defer m.emitLock.Unlock()
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var (
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browseId int32
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frameId int64
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ipcId = executeJS.msgID.New()
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idx = args.Size()
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)
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if args == nil {
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args = ipc.NewArgumentList()
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}
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if target == nil {
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bsr := m.Browser()
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browseId = bsr.Identifier()
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frameId = bsr.MainFrame().Identifier()
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} else {
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browseId = target.GetBrowserId()
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frameId = target.GetFrameId()
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if m.BrowserById(browseId).GetFrameById(frameId) == nil {
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return PMErr_NOT_FOUND_FRAME
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}
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}
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args.SetInt32(idx, int32(Tm_Callback))
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args.SetInt32(idx+1, ipcId)
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args.SetString(idx+2, eventName, true)
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executeJS.emitCallback.EmitCollection.Store(ipcId, callback)
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m.browseEmitJsOnEvent(browseId, frameId, ipc.Ln_IPC_GoEmitJS, args)
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return PME_OK
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}
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// EmitAndReturn
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// 触发JS监听的事件-同步执行-阻塞UI主线程
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//
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// 使用不当会造成 UI线程 锁死，一搬不在与JS监听中使用，与其它子进程通信时使用
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//
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// EmitTarget 接收目标, nil = mainBrowser mainFrame
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func (m *TCEFChromium) EmitAndReturn(eventName string, args ipc.IArgumentList, target IEmitTarget) (ipc.IIPCContext, ProcessMessageError) {
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if eventName == "" {
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return nil, PMErr_NAME_IS_NULL
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}
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m.emitLock.Lock()
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defer m.emitLock.Unlock()
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var (
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browseId int32
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frameId int64
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ipcId = executeJS.msgID.New()
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idx = args.Size()
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)
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if args == nil {
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args = ipc.NewArgumentList()
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}
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if target == nil {
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bsr := m.Browser()
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browseId = bsr.Identifier()
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frameId = bsr.MainFrame().Identifier()
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} else {
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browseId = target.GetBrowserId()
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frameId = target.GetFrameId()
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if m.BrowserById(browseId).GetFrameById(frameId) == nil {
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return nil, PMErr_NOT_FOUND_FRAME
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}
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}
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args.SetInt32(idx, int32(Tm_Sync))
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args.SetInt32(idx+1, ipcId)
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args.SetString(idx+2, eventName, true)
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var callback = func(emitAsync *ipc.EmitSyncCollection, ipcId int32) ipc.IIPCContext {
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emitAsync.Mutex.Lock()
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defer emitAsync.Mutex.Unlock()
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var chn = make(chan ipc.IIPCContext)
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var ret ipc.IIPCContext
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emitAsync.EmitCollection.Store(ipcId, chn)
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ret = <-chn //锁住当前线程
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executeJS.emitSync.EmitCollection.Delete(ipcId)
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return ret
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}
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m.browseEmitJsOnEvent(browseId, frameId, ipc.Ln_IPC_GoEmitJS, args)
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return callback(executeJS.emitSync, ipcId), PME_OK
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}
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