mirror of
https://gitee.com/energye/energy.git
synced 2024-12-05 21:28:17 +08:00
140 lines
4.6 KiB
Go
140 lines
4.6 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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package cef
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import (
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"github.com/energye/energy/v2/cef/internal/ipc"
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ipcArgument "github.com/energye/energy/v2/cef/ipc/argument"
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"strconv"
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)
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// 窗口拖拽JS扩展
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// 在这里执行并启用JS拖拽
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func dragExtensionJS(frame *ICefFrame, drag bool) {
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// Windows2种方式,自定义+webkit 只在LCL窗口中使用自定义窗口拖拽, VF窗口默认已实现
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var executeJS = `
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energyExtension.drag.setEnableDrag(` + strconv.FormatBool(drag) + `);
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energyExtension.drag.setup();`
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frame.ExecuteJavaScript(executeJS, "", 0)
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}
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// 窗口拖拽JS扩展处理器
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// 1. 注册JS扩展到CEF, 注册鼠标事件,通过本地函数在Go里处理鼠标事件
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// 2. 通过IPC将鼠标消息发送到主进程,主进程监听到消息处理鼠标事件
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// 3. windows 使用win.api实现窗口拖拽
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func dragExtensionHandler() {
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energyExtensionHandler := V8HandlerRef.New()
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energyExtensionHandler.Execute(func(name string, object *ICefV8Value, arguments *TCefV8ValueArray, retVal *ResultV8Value, exception *ResultString) bool {
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if name == mouseDown {
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return true
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} else if name == mouseUp {
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message := &ipcArgument.List{
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Id: -1,
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BId: ipc.RenderChan().BrowserId(),
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Name: internalIPCDRAG,
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Data: &drag{T: dragUp},
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}
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ipc.RenderChan().IPC().Send(message.Bytes())
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return true
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} else if name == mouseMove {
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message := &ipcArgument.List{
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Id: -1,
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BId: ipc.RenderChan().BrowserId(),
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Name: internalIPCDRAG,
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}
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ipc.RenderChan().IPC().Send(message.Bytes())
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return true
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}
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return false
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})
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var code = `
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let energyExtension;
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if (!energyExtension) {
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energyExtension = {
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drag: {
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enableDrag: false,
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shouldDrag: false,
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cssDragProperty: "--webkit-app-region",
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cssDragValue: "drag",
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defaultCursor: null
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},
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};
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}
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(function () {
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energyExtension.drag.war = function (e) {
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let v = window.getComputedStyle(e.target).getPropertyValue(energyExtension.drag.cssDragProperty);
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if (v) {
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v = v.trim();
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if (v !== energyExtension.drag.cssDragValue || e.buttons !== 1) {
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return false;
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}
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return e.detail === 1;
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}
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return false;
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}
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energyExtension.drag.mouseMove = function (e) {
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if (!energyExtension.drag.enableDrag || !energyExtension.drag.shouldDrag) {
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return
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}
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energyExtension.drag.shouldDrag = false;
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native function mouseMove();
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mouseMove();
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}
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energyExtension.drag.mouseUp = function (e) {
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if (!energyExtension.drag.enableDrag) {
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return
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}
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energyExtension.drag.shouldDrag = false;
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if (energyExtension.drag.war(e)) {
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e.preventDefault();
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native function mouseUp();
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mouseUp();
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}
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}
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energyExtension.drag.mouseDown = function (e) {
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if (!energyExtension.drag.enableDrag || ((e.offsetX > e.target.clientWidth || e.offsetY > e.target.clientHeight))) {
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return
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}
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if (energyExtension.drag.war(e)) {
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e.preventDefault();
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energyExtension.drag.shouldDrag = true;
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native function mouseDown();
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mouseDown();
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} else {
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energyExtension.drag.shouldDrag = false;
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}
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}
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energyExtension.drag.setEnableDrag = function (v) {
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energyExtension.drag.enableDrag = v;
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}
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energyExtension.drag.setup = function () {
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if (!energyExtension.drag.enableDrag) {
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return;
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}
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window.addEventListener("mousemove", energyExtension.drag.mouseMove);
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window.addEventListener("mousedown", energyExtension.drag.mouseDown);
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window.addEventListener("mouseup", energyExtension.drag.mouseUp);
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}
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})();
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`
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RegisterExtension("energyExtension", code, energyExtensionHandler)
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}
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func (m *drag) drag() {
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if m.T == dragUp {
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if m.window.IsLCL() {
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m.window.AsLCLBrowserWindow().BrowserWindow().cwcap.canCaption = false
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}
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}
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}
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