A: windows demo custom-browser-create

cef/browser-main-window.go

@@ -115,7 +115,9 @@ func (m *browserWindow) SetBrowserInit(fn browserWindowOnEventCallback) {
 // createNextLCLPopupWindow 预创建下一个弹出的子窗口
 func (m *browserWindow) createNextLCLPopupWindow() {
 	if m.popupWindow == nil {
-		m.popupWindow = NewLCLWindow(m.Config.WindowProperty, m.MainWindow().AsLCLBrowserWindow().BrowserWindow())
+		if mw := m.MainWindow(); mw != nil {
+			m.popupWindow = NewLCLWindow(m.Config.WindowProperty, mw.AsLCLBrowserWindow().BrowserWindow())
+		}
 	}
 }
 

example/dev-test/window/window.go

-//----------------------------------------
-//
-// Copyright © yanghy. All Rights Reserved.
-//
-// Licensed under Apache License Version 2.0, January 2004
-//
-// https://www.apache.org/licenses/LICENSE-2.0
-//
-//----------------------------------------
-
-package main
-
-import (
-	"fmt"
-	"github.com/energye/energy/v2/cef"
-	"github.com/energye/golcl/lcl"
-	"github.com/energye/golcl/lcl/types/colors"
-)
-
-type WindowDemo struct {
-	cef.LCLBrowserWindow
-}
-
-func (m *WindowDemo) OnFormCreate(sender lcl.IObject) {
-	fmt.Println("LCLBrowserWindow OnFormCreate")
-	//m.EnabledMaximize(false)
-	//m.EnabledMaximize(false)
-	//m.SetBorderStyle(types.BsNone)
-	m.ScreenCenter()
-	bufferPanel := cef.NewBufferPanel(m)
-	bufferPanel.SetParent(m)
-	bufferPanel.SetColor(colors.ClAqua)
-	rng := cef.TCefRange{}
-	rng.To = 123
-	rng.From = 321
-	characterBounds := make([]cef.TCefRect, 50)
-	for i := 0; i < len(characterBounds); i++ {
-		characterBounds[i].Width = 1000 + int32(i)
-		characterBounds[i].Height = 110 + int32(i)
-		characterBounds[i].X = 2000 + int32(i)
-		characterBounds[i].Y = 2101 + int32(i)
-	}
-	bufferPanel.ChangeCompositionRange(rng, characterBounds)
-	bufferPanel.SetForcedDeviceScaleFactor(123.11)
-	fmt.Println(bufferPanel.GetForcedDeviceScaleFactor())
-	bufferPanel.SetOnClick(func(sender lcl.IObject) {
-		fmt.Println("SetOnClick")
-	})
-	monitor := m.Monitor()
-	fmt.Println(monitor.WorkareaRect())
-}
-
-func main() {
-	cef.GlobalInit(nil, nil)
-	var window = &WindowDemo{}
-	lcl.RunApp(&window)
-}

example/windows/custom-browser-create/custom-browser-create.go

+//----------------------------------------
+//
+// Copyright © yanghy. All Rights Reserved.
+//
+// Licensed under Apache License Version 2.0, January 2004
+//
+// https://www.apache.org/licenses/LICENSE-2.0
+//
+//----------------------------------------
+
+package main
+
+import (
+	"fmt"
+	"github.com/energye/energy/v2/cef"
+	"github.com/energye/energy/v2/consts"
+	"github.com/energye/energy/v2/consts/messages"
+	"github.com/energye/golcl/lcl"
+	"github.com/energye/golcl/lcl/api"
+	"github.com/energye/golcl/lcl/rtl"
+	"github.com/energye/golcl/lcl/types"
+	"github.com/energye/golcl/lcl/types/colors"
+)
+
+type MainWindowDemo struct {
+	*lcl.TForm
+}
+
+//自定义浏览器创建
+//示例演示将CEF做为一个LCL组件使用
+//在适当的情况动态创建一个或多个浏览器，实际可做为子组件使用或弹出窗口，根据需求而定
+//需要自己正确处理关闭流程
+//可以自己定制出CEF的使用
+
+func main() {
+	cef.GlobalInit(nil, nil)
+	defer func() {
+		api.EnergyLibRelease()
+	}()
+	//创建应用
+	app := cef.NewApplication()
+	// 启动主进程
+	success := app.StartMainProcess()
+	if success {
+		// 创建窗口并运行应用
+		var window = &MainWindowDemo{}
+		lcl.RunApp(&window)
+	}
+}
+
+func (m *MainWindowDemo) OnFormCreate(sender lcl.IObject) {
+	fmt.Println("MainWindowDemo OnFormCreate")
+
+	m.SetCaption("主窗口")
+	m.SetWidth(1000)
+	m.SetHeight(900)
+	m.SetPosition(types.PoDesktopCenter)
+
+	// 普通Panel
+	panel := lcl.NewPanel(m)
+	panel.SetParent(m)
+	panel.SetWidth(m.Width())
+	panel.SetHeight(800)
+	panel.SetTop(100)
+	panel.SetColor(colors.ClCyan)
+	panel.SetAnchors(types.NewSet(types.AkTop, types.AkRight, types.AkBottom, types.AkLeft))
+	labTxt := lcl.NewLabel(m)
+	labTxt.SetParent(panel)
+	labTxt.SetCaption("普通Panel") //标识一下确定是没有浏览器的panel
+
+	// 带有浏览器的panel
+	browserPanel := lcl.NewPanel(m)
+	browserPanel.SetParent(m)
+	browserPanel.SetWidth(m.Width())
+	browserPanel.SetHeight(800)
+	browserPanel.SetTop(100)
+	browserPanel.SetVisible(false)
+	browserPanel.SetAnchors(types.NewSet(types.AkTop, types.AkRight, types.AkBottom, types.AkLeft))
+
+	// 普通Panel 按钮
+	panelBtn := lcl.NewButton(m)
+	panelBtn.SetParent(m)
+	panelBtn.SetCaption("显示普通Panel")
+	panelBtn.SetWidth(200)
+	panelBtn.SetOnClick(func(sender lcl.IObject) {
+		panel.SetVisible(true)
+		browserPanel.SetVisible(false)
+	})
+
+	// 显示浏览器Panel 按钮
+	browserPanelBtn := lcl.NewButton(m)
+	browserPanelBtn.SetParent(m)
+	browserPanelBtn.SetCaption("显示浏览器Panel")
+	browserPanelBtn.SetWidth(200)
+	browserPanelBtn.SetLeft(250)
+	//在按钮事件中创建浏览器，并设置到指定的panel中
+	//需要注意的是，浏览器有一个正确的关闭流程。
+	//在窗口的关闭事件中 close, closeQuery
+	var chromiumBrowser cef.ICEFChromiumBrowser
+	//窗口关闭流程标识
+	var (
+		canClose  bool
+		isClosing bool
+	)
+	browserPanelBtn.SetOnClick(func(sender lcl.IObject) {
+		panel.SetVisible(false)
+		browserPanel.SetVisible(true)
+		if chromiumBrowser == nil {
+			chromiumBrowser = cef.NewChromiumBrowser(browserPanel, nil)
+			chromiumBrowser.Chromium().SetEnableMultiBrowserMode(true)
+			chromiumBrowser.Chromium().SetDefaultURL("https://www.baidu.com")
+			//windowParent
+			chromiumBrowser.WindowParent().DefaultAnchors()
+			chromiumBrowser.WindowParent().SetOnEnter(func(sender lcl.IObject) {
+				chromiumBrowser.Chromium().Initialized()
+				chromiumBrowser.Chromium().FrameIsFocused()
+				chromiumBrowser.Chromium().SetFocus(true)
+			})
+			chromiumBrowser.WindowParent().SetOnExit(func(sender lcl.IObject) {
+				chromiumBrowser.Chromium().SendCaptureLostEvent()
+			})
+			//禁用右键菜单
+			chromiumBrowser.Chromium().SetOnBeforeContextMenu(func(sender lcl.IObject, browser *cef.ICefBrowser, frame *cef.ICefFrame, params *cef.ICefContextMenuParams, model *cef.ICefMenuModel) {
+				model.Clear()
+			})
+			//禁止弹出新窗口
+			chromiumBrowser.Chromium().SetOnBeforePopup(func(sender lcl.IObject, browser *cef.ICefBrowser, frame *cef.ICefFrame, beforePopupInfo *cef.BeforePopupInfo, client *cef.ICefClient, noJavascriptAccess *bool) bool {
+				return true
+			})
+
+			// 以下是窗口关闭时 正确关闭浏览器的流程
+			// windows的关闭示例
+			chromiumBrowser.Chromium().SetOnClose(func(sender lcl.IObject, browser *cef.ICefBrowser, aAction *consts.TCefCloseBrowserAction) {
+				*aAction = consts.CbaDelay
+				cef.QueueAsyncCall(func(id int) { //run in main thread
+					chromiumBrowser.WindowParent().Free()
+				})
+			})
+			chromiumBrowser.Chromium().SetOnBeforeClose(func(sender lcl.IObject, browser *cef.ICefBrowser) {
+				canClose = true                   // 允许关闭窗口
+				cef.QueueAsyncCall(func(id int) { // main thread run
+					rtl.PostMessage(m.Handle(), messages.WM_CLOSE, 0, 0) //发送关闭消息
+				})
+			})
+		}
+	})
+	// 以下是窗口关闭时 正确关闭浏览器的流程
+	// windows的关闭示例
+	m.SetOnClose(func(sender lcl.IObject, action *types.TCloseAction) {
+		*action = types.CaFree
+	})
+	m.SetOnCloseQuery(func(sender lcl.IObject, close *bool) {
+		*close = canClose // 是否允许关闭窗口标识
+		cef.QueueAsyncCall(func(id int) {
+			if !isClosing {
+				isClosing = true
+				if chromiumBrowser != nil {
+					chromiumBrowser.Chromium().CloseBrowser(true) // 关闭浏览器
+				}
+				m.Hide()
+			}
+		})
+	})
+}