energy/cef/browser-window-lcl_windows.go

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//----------------------------------------
//
// Copyright © yanghy. All Rights Reserved.
//
// Licensed under Apache License Version 2.0, January 2004
//
// https://www.apache.org/licenses/LICENSE-2.0
//
//----------------------------------------
//go:build windows
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// LCL窗口组件定义和实现-windows平台
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package cef
import (
"github.com/energye/energy/v2/cef/winapi"
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"github.com/energye/energy/v2/consts"
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"github.com/energye/energy/v2/consts/messages"
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et "github.com/energye/energy/v2/types"
"github.com/energye/golcl/lcl"
"github.com/energye/golcl/lcl/rtl"
"github.com/energye/golcl/lcl/types"
"github.com/energye/golcl/lcl/win"
)
// 定义四角和边框范围
var (
angleRange int32 = 10 //四角
borderRange int32 = 5 //四边框
)
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// customWindowCaption 自定义窗口标题栏
//
// 隐藏窗口标题栏通过html+css实现自定义窗口标题栏实现窗口拖拽等
type customWindowCaption struct {
bw *LCLBrowserWindow //
canCaption bool //当前鼠标是否在标题栏区域
canBorder bool //当前鼠标是否在边框
borderHT, borderWMSZ int //borderHT: 鼠标所在边框位置, borderWMSZ: 窗口改变大小边框方向 borderMD:
borderMD bool //borderMD: 鼠标调整窗口大小已按下后再次接收到132消息应该忽略该消息
regions *TCefDraggableRegions //窗口内html拖拽区域
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rgn *et.HRGN //
}
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// ShowTitle 显示标题栏
func (m *LCLBrowserWindow) ShowTitle() {
m.WindowProperty().EnableHideCaption = false
//win.SetWindowLong(m.Handle(), win.GWL_STYLE, uintptr(win.GetWindowLong(m.Handle(), win.GWL_STYLE)|win.WS_CAPTION))
//win.SetWindowPos(m.Handle(), m.Handle(), 0, 0, 0, 0, win.SWP_NOSIZE|win.SWP_NOMOVE|win.SWP_NOZORDER|win.SWP_NOACTIVATE|win.SWP_FRAMECHANGED)
m.EnabledMaximize(m.WindowProperty().EnableMaximize)
m.EnabledMinimize(m.WindowProperty().EnableMinimize)
m.SetBorderStyle(types.BsSizeable)
}
// HideTitle 隐藏标题栏 无边框样式
func (m *LCLBrowserWindow) HideTitle() {
m.WindowProperty().EnableHideCaption = true
m.SetBorderStyle(types.BsNone)
}
// FramelessForDefault 窗口四边框系统默认样式
// TODO 窗口顶部有条线
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func (m *LCLBrowserWindow) FramelessForDefault() {
gwlStyle := win.GetWindowLong(m.Handle(), win.GWL_STYLE)
win.SetWindowLong(m.Handle(), win.GWL_STYLE, uintptr(gwlStyle&^win.WS_CAPTION&^win.WS_BORDER|win.WS_THICKFRAME))
win.SetWindowPos(m.Handle(), 0, 0, 0, 0, 0, uint32(win.SWP_NOMOVE|win.SWP_NOSIZE|win.SWP_FRAMECHANGED))
}
// FramelessForLine 窗口四边框是一条细线
func (m *LCLBrowserWindow) FramelessForLine() {
gwlStyle := win.GetWindowLong(m.Handle(), win.GWL_STYLE)
win.SetWindowLong(m.Handle(), win.GWL_STYLE, uintptr(gwlStyle&^win.WS_CAPTION&^win.WS_THICKFRAME|win.WS_BORDER))
win.SetWindowPos(m.Handle(), 0, 0, 0, 0, 0, uint32(win.SWP_NOMOVE|win.SWP_NOSIZE|win.SWP_FRAMECHANGED))
}
//func (m *LCLBrowserWindow) Frameless() {
// var rect = &types.TRect{}
// win.GetWindowRect(m.Handle(), rect)
// win.SetWindowPos(m.Handle(), 0, rect.Left, rect.Top, rect.Right-rect.Left, rect.Bottom-rect.Top, win.SWP_FRAMECHANGED)
//}
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// freeRgn
func (m *customWindowCaption) freeRgn() {
if m.rgn != nil {
winapi.WinSetRectRgn(m.rgn, 0, 0, 0, 0)
winapi.WinDeleteObject(m.rgn)
m.rgn.Free()
}
}
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// freeRegions
func (m *customWindowCaption) freeRegions() {
if m.regions != nil {
m.regions.regions = nil
m.regions = nil
}
}
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// free
func (m *customWindowCaption) free() {
if m != nil {
m.freeRgn()
m.freeRegions()
}
}
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// onNCMouseMove NC 非客户区鼠标移动
func (m *customWindowCaption) onNCMouseMove(message *types.TMessage, lResult *types.LRESULT, aHandled *bool) {
if m.canCaption { // 当前在标题栏
} else if m.canBorder { // 当前在边框
*lResult = types.LRESULT(m.borderHT)
*aHandled = true
}
}
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// onSetCursor 设置鼠标图标
func (m *customWindowCaption) onSetCursor(message *types.TMessage, lResult *types.LRESULT, aHandled *bool) {
if m.canBorder { //当前在边框
switch winapi.LOWORD(uint32(message.LParam)) {
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case messages.HTBOTTOMRIGHT, messages.HTTOPLEFT: //右下 左上
*lResult = types.LRESULT(m.borderHT)
*aHandled = true
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winapi.WinSetCursor(winapi.WinLoadCursor(0, messages.IDC_SIZENWSE))
case messages.HTRIGHT, messages.HTLEFT: //右 左
*lResult = types.LRESULT(m.borderHT)
*aHandled = true
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winapi.WinSetCursor(winapi.WinLoadCursor(0, messages.IDC_SIZEWE))
case messages.HTTOPRIGHT, messages.HTBOTTOMLEFT: //右上 左下
*lResult = types.LRESULT(m.borderHT)
*aHandled = true
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winapi.WinSetCursor(winapi.WinLoadCursor(0, messages.IDC_SIZENESW))
case messages.HTTOP, messages.HTBOTTOM: //上 下
*lResult = types.LRESULT(m.borderHT)
*aHandled = true
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winapi.WinSetCursor(winapi.WinLoadCursor(0, messages.IDC_SIZENS))
}
}
}
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// onCanBorder 鼠标是否在边框
func (m *customWindowCaption) onCanBorder(x, y int32, rect *types.TRect) (int, bool) {
if m.canBorder = x <= rect.Width() && x >= rect.Width()-angleRange && y <= angleRange; m.canBorder { // 右上
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m.borderWMSZ = messages.WMSZ_TOPRIGHT
m.borderHT = messages.HTTOPRIGHT
return m.borderHT, true
} else if m.canBorder = x <= rect.Width() && x >= rect.Width()-angleRange && y <= rect.Height() && y >= rect.Height()-angleRange; m.canBorder { // 右下
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m.borderWMSZ = messages.WMSZ_BOTTOMRIGHT
m.borderHT = messages.HTBOTTOMRIGHT
return m.borderHT, true
} else if m.canBorder = x <= angleRange && y <= angleRange; m.canBorder { //左上
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m.borderWMSZ = messages.WMSZ_TOPLEFT
m.borderHT = messages.HTTOPLEFT
return m.borderHT, true
} else if m.canBorder = x <= angleRange && y >= rect.Height()-angleRange; m.canBorder { //左下
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m.borderWMSZ = messages.WMSZ_BOTTOMLEFT
m.borderHT = messages.HTBOTTOMLEFT
return m.borderHT, true
} else if m.canBorder = x > angleRange && x < rect.Width()-angleRange && y <= borderRange; m.canBorder { //上
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m.borderWMSZ = messages.WMSZ_TOP
m.borderHT = messages.HTTOP
return m.borderHT, true
} else if m.canBorder = x > angleRange && x < rect.Width()-angleRange && y >= rect.Height()-borderRange; m.canBorder { //下
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m.borderWMSZ = messages.WMSZ_BOTTOM
m.borderHT = messages.HTBOTTOM
return m.borderHT, true
} else if m.canBorder = x <= borderRange && y > angleRange && y < rect.Height()-angleRange; m.canBorder { //左
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m.borderWMSZ = messages.WMSZ_LEFT
m.borderHT = messages.HTLEFT
return m.borderHT, true
} else if m.canBorder = x <= rect.Width() && x >= rect.Width()-borderRange && y > angleRange && y < rect.Height()-angleRange; m.canBorder { // 右
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m.borderWMSZ = messages.WMSZ_RIGHT
m.borderHT = messages.HTRIGHT
return m.borderHT, true
}
return 0, false
}
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// onNCLButtonDown NC 鼠标左键按下
func (m *customWindowCaption) onNCLButtonDown(hWND types.HWND, message *types.TMessage, lResult *types.LRESULT, aHandled *bool) {
if m.canCaption { // 标题栏
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*lResult = messages.HTCAPTION
*aHandled = true
//全屏时不能移动窗口
if m.bw.WindowProperty().current.ws == types.WsFullScreen {
return
}
x, y := m.toPoint(message)
m.borderMD = true
if win.ReleaseCapture() {
win.PostMessage(hWND, messages.WM_NCLBUTTONDOWN, messages.HTCAPTION, rtl.MakeLParam(uint16(x), uint16(y)))
}
} else if m.canBorder { // 边框
x, y := m.toPoint(message)
*lResult = types.LRESULT(m.borderHT)
*aHandled = true
m.borderMD = true
if win.ReleaseCapture() {
win.PostMessage(hWND, messages.WM_SYSCOMMAND, uintptr(messages.SC_SIZE|m.borderWMSZ), rtl.MakeLParam(uint16(x), uint16(y)))
}
}
}
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// toPoint 转换XY坐标
func (m *customWindowCaption) toPoint(message *types.TMessage) (x, y int32) {
return winapi.GET_X_LPARAM(message.LParam), winapi.GET_Y_LPARAM(message.LParam)
}
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// isCaption
// 鼠标是否在标题栏区域
//
// 如果启用了css拖拽则校验拖拽区域,否则只返回相对于浏览器窗口的x,y坐标
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func (m *customWindowCaption) isCaption(hWND et.HWND, message *types.TMessage) (int32, int32, bool) {
dx, dy := m.toPoint(message)
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p := &et.Point{
X: dx,
Y: dy,
}
winapi.WinScreenToClient(hWND, p)
p.X -= m.bw.WindowParent().Left()
p.Y -= m.bw.WindowParent().Top()
if m.bw.WindowProperty().EnableWebkitAppRegion && m.rgn != nil {
m.canCaption = winapi.WinPtInRegion(m.rgn, p.X, p.Y)
} else {
m.canCaption = false
}
return p.X, p.Y, m.canCaption
}
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// doOnRenderCompMsg
func (m *LCLBrowserWindow) doOnRenderCompMsg(message *types.TMessage, lResult *types.LRESULT, aHandled *bool) {
switch message.Msg {
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case messages.WM_NCLBUTTONDBLCLK: // 163 NC left dclick
//标题栏拖拽区域 双击最大化和还原
if m.cwcap.canCaption && m.WindowProperty().EnableWebkitAppRegionDClk {
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*lResult = messages.HTCAPTION
*aHandled = true
if win.ReleaseCapture() {
if m.WindowState() == types.WsNormal {
win.PostMessage(m.Handle(), messages.WM_SYSCOMMAND, messages.SC_MAXIMIZE, 0)
} else {
win.PostMessage(m.Handle(), messages.WM_SYSCOMMAND, messages.SC_RESTORE, 0)
}
win.SendMessage(m.Handle(), messages.WM_NCLBUTTONUP, messages.HTCAPTION, 0)
}
}
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case messages.WM_NCLBUTTONDOWN: // 161 nc left down
m.cwcap.onNCLButtonDown(m.Handle(), message, lResult, aHandled)
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case messages.WM_NCLBUTTONUP: // 162 nc l up
if m.cwcap.canCaption {
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*lResult = messages.HTCAPTION
*aHandled = true
}
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case messages.WM_NCMOUSEMOVE: // 160 nc mouse move
m.cwcap.onNCMouseMove(message, lResult, aHandled)
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case messages.WM_SETCURSOR: // 32 设置鼠标图标样式
m.cwcap.onSetCursor(message, lResult, aHandled)
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case messages.WM_NCHITTEST: // 132 NCHITTEST
if m.cwcap.borderMD { //TODO 测试windows7, 161消息之后再次处理132消息导致消息错误
m.cwcap.borderMD = false
return
}
//鼠标坐标是否在标题区域
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x, y, caption := m.cwcap.isCaption(et.HWND(m.Handle()), message)
if caption { //窗口标题栏
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*lResult = messages.HTCAPTION
*aHandled = true
} else if m.WindowProperty().EnableHideCaption && m.WindowProperty().EnableResize && m.WindowState() == types.WsNormal { //1.窗口隐藏标题栏 2.启用了调整窗口大小 3.非最大化、最小化、全屏状态
//全屏时不能调整窗口大小
if m.WindowProperty().current.ws == types.WsFullScreen {
return
}
rect := m.BoundsRect()
if result, handled := m.cwcap.onCanBorder(x, y, &rect); handled {
*lResult = types.LRESULT(result)
*aHandled = true
}
}
}
}
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// setDraggableRegions
// 每一次拖拽区域改变都需要重新设置
func (m *LCLBrowserWindow) setDraggableRegions() {
//在主线程中运行
m.RunOnMainThread(func() {
if m.cwcap.rgn == nil {
//第一次时创建RGN
m.cwcap.rgn = winapi.WinCreateRectRgn(0, 0, 0, 0)
} else {
//每次重置RGN
winapi.WinSetRectRgn(m.cwcap.rgn, 0, 0, 0, 0)
}
for i := 0; i < m.cwcap.regions.RegionsCount(); i++ {
region := m.cwcap.regions.Region(i)
creRGN := winapi.WinCreateRectRgn(region.Bounds.X, region.Bounds.Y, region.Bounds.X+region.Bounds.Width, region.Bounds.Y+region.Bounds.Height)
if region.Draggable {
winapi.WinCombineRgn(m.cwcap.rgn, m.cwcap.rgn, creRGN, consts.RGN_OR)
} else {
winapi.WinCombineRgn(m.cwcap.rgn, m.cwcap.rgn, creRGN, consts.RGN_DIFF)
}
winapi.WinDeleteObject(creRGN)
}
})
}
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// registerWindowsCompMsgEvent
// 注册windows下CompMsg事件
func (m *LCLBrowserWindow) registerWindowsCompMsgEvent() {
var bwEvent = BrowserWindow.browserEvent
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m.Chromium().SetOnRenderCompMsg(func(sender lcl.IObject, message *types.TMessage, lResult *types.LRESULT, aHandled *bool) {
if bwEvent.onRenderCompMsg != nil {
bwEvent.onRenderCompMsg(sender, message, lResult, aHandled)
}
if !*aHandled {
m.doOnRenderCompMsg(message, lResult, aHandled)
}
})
if m.WindowProperty().EnableWebkitAppRegion && m.WindowProperty().EnableWebkitAppRegionDClk {
m.windowResize = func(sender lcl.IObject) bool {
if m.WindowState() == types.WsMaximized && (m.WindowProperty().EnableHideCaption || m.BorderStyle() == types.BsNone || m.BorderStyle() == types.BsSingle) {
var monitor = m.Monitor().WorkareaRect()
m.SetBounds(monitor.Left, monitor.Top, monitor.Right-monitor.Left, monitor.Bottom-monitor.Top)
m.SetWindowState(types.WsMaximized)
}
return false
}
}
//if m.WindowProperty().EnableWebkitAppRegion {
//
//} else {
// if bwEvent.onRenderCompMsg != nil {
// m.chromium.SetOnRenderCompMsg(bwEvent.onRenderCompMsg)
// }
//}
}
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// Maximize Windows平台窗口最大化/还原
func (m *LCLBrowserWindow) Maximize() {
if m.TForm == nil {
return
}
m.RunOnMainThread(func() {
if win.ReleaseCapture() {
if m.WindowState() == types.WsNormal {
win.PostMessage(m.Handle(), messages.WM_SYSCOMMAND, messages.SC_MAXIMIZE, 0)
} else {
win.SendMessage(m.Handle(), messages.WM_SYSCOMMAND, messages.SC_RESTORE, 0)
}
}
})
}
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// 窗口透明
//func (m *LCLBrowserWindow) SetTransparentColor() {
// m.SetColor(colors.ClNavy)
// Exstyle := win.GetWindowLong(m.Handle(), win.GWL_EXSTYLE)
// Exstyle = Exstyle | win.WS_EX_LAYERED&^win.WS_EX_TRANSPARENT
// win.SetWindowLong(m.Handle(), win.GWL_EXSTYLE, uintptr(Exstyle))
// win.SetLayeredWindowAttributes(m.Handle(),
// colors.ClNavy, //crKey 指定需要透明的背景颜色值
// 255, //bAlpha 设置透明度,0完全透明255不透明
// //LWA_ALPHA: crKey无效,bAlpha有效
// //LWA_COLORKEY: 窗体中的所有颜色为crKey的地方全透明bAlpha无效
// //LWA_ALPHA | LWA_COLORKEY: crKey的地方全透明其它地方根据bAlpha确定透明度
// win.LWA_ALPHA|win.LWA_COLORKEY)
//}
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func (m *LCLBrowserWindow) doDrag() {
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// Windows Drag Window
// m.drag != nil 时,这里处理的是 up 事件, 给标题栏标记为false
if m.drag != nil {
m.drag.drag()
} else {
// 全屏时不能拖拽窗口
if m.WindowProperty().current.ws == types.WsFullScreen {
return
}
// 此时是 down 事件, 拖拽窗口
if win.ReleaseCapture() {
win.PostMessage(m.Handle(), messages.WM_NCLBUTTONDOWN, messages.HTCAPTION, 0)
m.cwcap.canCaption = true
}
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}
}