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344 lines
13 KiB
Go
344 lines
13 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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//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
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import (
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"github.com/energye/energy/v2/cef/winapi"
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"github.com/energye/energy/v2/consts"
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et "github.com/energye/energy/v2/types"
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"github.com/energye/golcl/lcl"
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"github.com/energye/golcl/lcl/rtl"
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"github.com/energye/golcl/lcl/types"
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"github.com/energye/golcl/lcl/win"
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)
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// 定义四角和边框范围
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var (
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angleRange int32 = 10 //四角
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borderRange int32 = 5 //四边框
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)
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// customWindowCaption 自定义窗口标题栏
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//
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// 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
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type customWindowCaption struct {
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bw *LCLBrowserWindow //
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canCaption bool //当前鼠标是否在标题栏区域
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canBorder bool //当前鼠标是否在边框
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borderHT, borderWMSZ int //borderHT: 鼠标所在边框位置, borderWMSZ: 窗口改变大小边框方向 borderMD:
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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
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regions *TCefDraggableRegions //窗口内html拖拽区域
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rgn *et.HRGN //
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}
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// ShowTitle 显示标题栏
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func (m *LCLBrowserWindow) ShowTitle() {
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m.WindowProperty().EnableHideCaption = false
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//win.SetWindowLong(m.Handle(), win.GWL_STYLE, uintptr(win.GetWindowLong(m.Handle(), win.GWL_STYLE)|win.WS_CAPTION))
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//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)
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m.EnabledMaximize(m.WindowProperty().EnableMaximize)
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m.EnabledMinimize(m.WindowProperty().EnableMinimize)
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m.SetBorderStyle(types.BsSizeable)
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}
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// HideTitle 隐藏标题栏
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func (m *LCLBrowserWindow) HideTitle() {
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m.WindowProperty().EnableHideCaption = true
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//win.SetWindowLong(m.Handle(), win.GWL_STYLE, uintptr(win.GetWindowLong(m.Handle(), win.GWL_STYLE)&^win.WS_CAPTION))
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//win.SetWindowPos(m.Handle(), 0, 0, 0, m.Width(), m.Height()+500, win.SWP_NOMOVE|win.SWP_NOZORDER|win.SWP_NOACTIVATE|win.SWP_FRAMECHANGED|win.SWP_DRAWFRAME)
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//无标题栏情况会导致任务栏不能切换窗口，不知道为什么要这样设置一下
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m.EnabledMaximize(false)
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m.SetBorderStyle(types.BsNone)
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}
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// freeRgn
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func (m *customWindowCaption) freeRgn() {
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if m.rgn != nil {
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winapi.WinSetRectRgn(m.rgn, 0, 0, 0, 0)
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winapi.WinDeleteObject(m.rgn)
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m.rgn.Free()
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}
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}
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// freeRegions
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func (m *customWindowCaption) freeRegions() {
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if m.regions != nil {
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m.regions.regions = nil
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m.regions = nil
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}
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}
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// free
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func (m *customWindowCaption) free() {
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if m != nil {
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m.freeRgn()
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m.freeRegions()
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}
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}
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// onNCMouseMove NC 非客户区鼠标移动
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func (m *customWindowCaption) onNCMouseMove(message *types.TMessage, lResult *types.LRESULT, aHandled *bool) {
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if m.canCaption { // 当前在标题栏
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} else if m.canBorder { // 当前在边框
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*lResult = types.LRESULT(m.borderHT)
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*aHandled = true
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}
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}
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// onSetCursor 设置鼠标图标
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func (m *customWindowCaption) onSetCursor(message *types.TMessage, lResult *types.LRESULT, aHandled *bool) {
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if m.canBorder { //当前在边框
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switch winapi.LOWORD(uint32(message.LParam)) {
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case consts.HTBOTTOMRIGHT, consts.HTTOPLEFT: //右下 左上
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*lResult = types.LRESULT(m.borderHT)
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*aHandled = true
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winapi.WinSetCursor(winapi.WinLoadCursor(0, winapi.IDC_SIZENWSE))
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case consts.HTRIGHT, consts.HTLEFT: //右 左
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*lResult = types.LRESULT(m.borderHT)
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*aHandled = true
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winapi.WinSetCursor(winapi.WinLoadCursor(0, winapi.IDC_SIZEWE))
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case consts.HTTOPRIGHT, consts.HTBOTTOMLEFT: //右上 左下
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*lResult = types.LRESULT(m.borderHT)
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*aHandled = true
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winapi.WinSetCursor(winapi.WinLoadCursor(0, winapi.IDC_SIZENESW))
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case consts.HTTOP, consts.HTBOTTOM: //上 下
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*lResult = types.LRESULT(m.borderHT)
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*aHandled = true
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winapi.WinSetCursor(winapi.WinLoadCursor(0, winapi.IDC_SIZENS))
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}
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}
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}
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// onCanBorder 鼠标是否在边框
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func (m *customWindowCaption) onCanBorder(x, y int32, rect *types.TRect) (int, bool) {
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if m.canBorder = x <= rect.Width() && x >= rect.Width()-angleRange && y <= angleRange; m.canBorder { // 右上
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m.borderWMSZ = winapi.WMSZ_TOPRIGHT
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m.borderHT = consts.HTTOPRIGHT
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return m.borderHT, true
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} 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 = winapi.WMSZ_BOTTOMRIGHT
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m.borderHT = consts.HTBOTTOMRIGHT
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return m.borderHT, true
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} else if m.canBorder = x <= angleRange && y <= angleRange; m.canBorder { //左上
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m.borderWMSZ = winapi.WMSZ_TOPLEFT
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m.borderHT = consts.HTTOPLEFT
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return m.borderHT, true
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} else if m.canBorder = x <= angleRange && y >= rect.Height()-angleRange; m.canBorder { //左下
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m.borderWMSZ = winapi.WMSZ_BOTTOMLEFT
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m.borderHT = consts.HTBOTTOMLEFT
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return m.borderHT, true
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} else if m.canBorder = x > angleRange && x < rect.Width()-angleRange && y <= borderRange; m.canBorder { //上
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m.borderWMSZ = winapi.WMSZ_TOP
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m.borderHT = consts.HTTOP
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return m.borderHT, true
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} else if m.canBorder = x > angleRange && x < rect.Width()-angleRange && y >= rect.Height()-borderRange; m.canBorder { //下
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m.borderWMSZ = winapi.WMSZ_BOTTOM
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m.borderHT = consts.HTBOTTOM
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return m.borderHT, true
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} else if m.canBorder = x <= borderRange && y > angleRange && y < rect.Height()-angleRange; m.canBorder { //左
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m.borderWMSZ = winapi.WMSZ_LEFT
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m.borderHT = consts.HTLEFT
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return m.borderHT, true
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} 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 = winapi.WMSZ_RIGHT
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m.borderHT = consts.HTRIGHT
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return m.borderHT, true
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}
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return 0, false
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}
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// onNCLButtonDown NC 鼠标左键按下
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func (m *customWindowCaption) onNCLButtonDown(hWND types.HWND, message *types.TMessage, lResult *types.LRESULT, aHandled *bool) {
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if m.canCaption { // 标题栏
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x, y := m.toPoint(message)
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*lResult = consts.HTCAPTION
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m.borderMD = true
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*aHandled = true
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win.ReleaseCapture()
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rtl.PostMessage(hWND, consts.WM_NCLBUTTONDOWN, consts.HTCAPTION, rtl.MakeLParam(uint16(x), uint16(y)))
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} else if m.canBorder { // 边框
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x, y := m.toPoint(message)
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*lResult = types.LRESULT(m.borderHT)
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m.borderMD = true
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*aHandled = true
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win.ReleaseCapture()
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rtl.PostMessage(hWND, consts.WM_SYSCOMMAND, uintptr(consts.SC_SIZE|m.borderWMSZ), rtl.MakeLParam(uint16(x), uint16(y)))
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//rtl.PostMessage(hWND, WM_SYSCOMMAND, uintptr(SC_SIZE|m.borderWMSZ), 0)
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}
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}
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// toPoint 转换XY坐标
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func (m *customWindowCaption) toPoint(message *types.TMessage) (x, y int32) {
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return winapi.GET_X_LPARAM(message.LParam), winapi.GET_Y_LPARAM(message.LParam)
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}
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// isCaption
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// 鼠标是否在标题栏区域
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//
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// 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) {
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dx, dy := m.toPoint(message)
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p := &et.Point{
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X: dx,
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Y: dy,
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}
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winapi.WinScreenToClient(hWND, p)
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p.X -= m.bw.WindowParent().Left()
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p.Y -= m.bw.WindowParent().Top()
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if m.bw.WindowProperty().EnableWebkitAppRegion && m.rgn != nil {
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m.canCaption = winapi.WinPtInRegion(m.rgn, p.X, p.Y)
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} else {
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m.canCaption = false
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}
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return p.X, p.Y, m.canCaption
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}
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// doOnRenderCompMsg
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func (m *LCLBrowserWindow) doOnRenderCompMsg(message *types.TMessage, lResult *types.LRESULT, aHandled *bool) {
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switch message.Msg {
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case consts.WM_NCLBUTTONDBLCLK: // 163 NC left dclick
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//标题栏拖拽区域 双击最大化和还原
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if m.cwcap.canCaption && m.WindowProperty().EnableWebkitAppRegionDClk {
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*lResult = consts.HTCAPTION
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*aHandled = true
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win.ReleaseCapture()
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m.windowProperty.windowState = m.WindowState()
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if m.windowProperty.windowState == types.WsNormal {
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rtl.PostMessage(m.Handle(), consts.WM_SYSCOMMAND, consts.SC_MAXIMIZE, 0)
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} else {
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rtl.PostMessage(m.Handle(), consts.WM_SYSCOMMAND, consts.SC_RESTORE, 0)
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}
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rtl.SendMessage(m.Handle(), consts.WM_NCLBUTTONUP, consts.HTCAPTION, 0)
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}
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case consts.WM_NCLBUTTONDOWN: // 161 nc left down
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m.cwcap.onNCLButtonDown(m.Handle(), message, lResult, aHandled)
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case consts.WM_NCLBUTTONUP: // 162 nc l up
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if m.cwcap.canCaption {
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*lResult = consts.HTCAPTION
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*aHandled = true
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}
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case consts.WM_NCMOUSEMOVE: // 160 nc mouse move
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m.cwcap.onNCMouseMove(message, lResult, aHandled)
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case consts.WM_SETCURSOR: // 32 设置鼠标图标样式
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m.cwcap.onSetCursor(message, lResult, aHandled)
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case consts.WM_NCHITTEST: // 132 NCHITTEST
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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
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m.cwcap.borderMD = false
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return
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}
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//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)
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if caption { //窗口标题栏
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*lResult = consts.HTCAPTION
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*aHandled = true
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} 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
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rect := m.BoundsRect()
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if result, handled := m.cwcap.onCanBorder(x, y, &rect); handled {
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*lResult = types.LRESULT(result)
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*aHandled = true
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}
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}
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}
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}
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// setDraggableRegions
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// 每一次拖拽区域改变都需要重新设置
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func (m *LCLBrowserWindow) setDraggableRegions() {
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//在主线程中运行
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QueueAsyncCall(func(id int) {
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if m.cwcap.rgn == nil {
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//第一次时创建RGN
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m.cwcap.rgn = winapi.WinCreateRectRgn(0, 0, 0, 0)
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} else {
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//每次重置RGN
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winapi.WinSetRectRgn(m.cwcap.rgn, 0, 0, 0, 0)
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}
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for i := 0; i < m.cwcap.regions.RegionsCount(); i++ {
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region := m.cwcap.regions.Region(i)
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creRGN := winapi.WinCreateRectRgn(region.Bounds.X, region.Bounds.Y, region.Bounds.X+region.Bounds.Width, region.Bounds.Y+region.Bounds.Height)
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if region.Draggable {
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winapi.WinCombineRgn(m.cwcap.rgn, m.cwcap.rgn, creRGN, consts.RGN_OR)
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} else {
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winapi.WinCombineRgn(m.cwcap.rgn, m.cwcap.rgn, creRGN, consts.RGN_DIFF)
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}
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winapi.WinDeleteObject(creRGN)
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}
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})
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}
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// registerWindowsCompMsgEvent
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// 注册windows下CompMsg事件
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func (m *LCLBrowserWindow) registerWindowsCompMsgEvent() {
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var bwEvent = BrowserWindow.browserEvent
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m.Chromium().SetOnRenderCompMsg(func(sender lcl.IObject, message *types.TMessage, lResult *types.LRESULT, aHandled *bool) {
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if bwEvent.onRenderCompMsg != nil {
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bwEvent.onRenderCompMsg(sender, message, lResult, aHandled)
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}
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if !*aHandled {
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m.doOnRenderCompMsg(message, lResult, aHandled)
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}
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})
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if m.WindowProperty().EnableWebkitAppRegion && m.WindowProperty().EnableWebkitAppRegionDClk {
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m.windowResize = func(sender lcl.IObject) bool {
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if m.WindowState() == types.WsMaximized && (m.WindowProperty().EnableHideCaption || m.BorderStyle() == types.BsNone || m.BorderStyle() == types.BsSingle) {
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var monitor = m.Monitor().WorkareaRect()
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m.SetBounds(monitor.Left, monitor.Top, monitor.Right-monitor.Left, monitor.Bottom-monitor.Top)
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m.SetWindowState(types.WsMaximized)
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}
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return false
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}
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}
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//if m.WindowProperty().EnableWebkitAppRegion {
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//
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//} else {
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// if bwEvent.onRenderCompMsg != nil {
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// m.chromium.SetOnRenderCompMsg(bwEvent.onRenderCompMsg)
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// }
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//}
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}
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// Maximize Windows平台，窗口最大化/还原
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func (m *LCLBrowserWindow) Maximize() {
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if m.TForm == nil {
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return
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}
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QueueAsyncCall(func(id int) {
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win.ReleaseCapture()
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m.windowProperty.windowState = m.WindowState()
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if m.windowProperty.windowState == types.WsNormal {
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rtl.PostMessage(m.Handle(), consts.WM_SYSCOMMAND, consts.SC_MAXIMIZE, 0)
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} else {
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rtl.SendMessage(m.Handle(), consts.WM_SYSCOMMAND, consts.SC_RESTORE, 0)
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}
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})
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}
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// 窗口透明
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//func (m *LCLBrowserWindow) SetTransparentColor() {
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// m.SetColor(colors.ClNavy)
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// Exstyle := win.GetWindowLong(m.Handle(), win.GWL_EXSTYLE)
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// Exstyle = Exstyle | win.WS_EX_LAYERED&^win.WS_EX_TRANSPARENT
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// win.SetWindowLong(m.Handle(), win.GWL_EXSTYLE, uintptr(Exstyle))
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// win.SetLayeredWindowAttributes(m.Handle(),
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// colors.ClNavy, //crKey 指定需要透明的背景颜色值
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// 255, //bAlpha 设置透明度,0完全透明，255不透明
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// //LWA_ALPHA: crKey无效,bAlpha有效
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// //LWA_COLORKEY: 窗体中的所有颜色为crKey的地方全透明，bAlpha无效
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// //LWA_ALPHA | LWA_COLORKEY: crKey的地方全透明，其它地方根据bAlpha确定透明度
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// win.LWA_ALPHA|win.LWA_COLORKEY)
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//}
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