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112 lines
3.0 KiB
Go
112 lines
3.0 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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package cef
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import (
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"github.com/energye/energy/v2/cef/internal/def"
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"github.com/energye/energy/v2/common"
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"github.com/energye/energy/v2/common/imports"
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"github.com/energye/energy/v2/consts"
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"github.com/energye/golcl/lcl"
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"github.com/energye/golcl/lcl/api"
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"unsafe"
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)
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// ************************** creates ************************** //
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// DragHandlerRef -> ICefDragHandler
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var DragHandlerRef dragHandler
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type dragHandler uintptr
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func (*dragHandler) New() *ICefDragHandler {
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var result uintptr
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imports.Proc(def.CefDragHandlerRef_Create).Call(uintptr(unsafe.Pointer(&result)))
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if result != 0 {
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return &ICefDragHandler{instance: unsafe.Pointer(result)}
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}
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return nil
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}
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// ************************** impl ************************** //
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// Instance 实例
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func (m *ICefDragHandler) Instance() uintptr {
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if m == 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 *ICefDragHandler) Free() {
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if m.instance != nil {
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m.base.Free(m.Instance())
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m.instance = nil
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}
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}
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func (m *ICefDragHandler) IsValid() bool {
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if m == nil || m.instance == nil {
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return false
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}
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return m.instance != nil
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}
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func (m *ICefDragHandler) SetOnDragEnter(fn onDragEnter) {
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if !m.IsValid() {
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return
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}
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imports.Proc(def.CefDragHandler_OnDragEnter).Call(m.Instance(), api.MakeEventDataPtr(fn))
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}
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func (m *ICefDragHandler) SetOnDraggableRegionsChanged(fn onDraggableRegionsChanged) {
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if !m.IsValid() {
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return
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}
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imports.Proc(def.CefDragHandler_OnDraggableRegionsChanged).Call(m.Instance(), api.MakeEventDataPtr(fn))
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}
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// ************************** events ************************** //
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type onDragEnter func(browser *ICefBrowser, dragData *ICefDragData, mask consts.TCefDragOperations) bool
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type onDraggableRegionsChanged func(browser *ICefBrowser, frame *ICefFrame, regions *TCefDraggableRegions)
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func init() {
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lcl.RegisterExtEventCallback(func(fn interface{}, getVal func(idx int) uintptr) bool {
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getPtr := func(i int) unsafe.Pointer {
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return unsafe.Pointer(getVal(i))
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}
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switch fn.(type) {
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case onDragEnter:
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browse := &ICefBrowser{instance: getPtr(0)}
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dragData := &ICefDragData{instance: getPtr(1)}
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mask := consts.TCefDragOperations(getVal(2))
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result := (*bool)(getPtr(3))
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*result = fn.(onDragEnter)(browse, dragData, mask)
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case onDraggableRegionsChanged:
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browse := &ICefBrowser{instance: getPtr(0)}
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frame := &ICefFrame{instance: getPtr(1)}
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regionsCount := int32(getVal(2))
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regions := NewCefDraggableRegions()
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var region TCefDraggableRegion
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var regionSize = unsafe.Sizeof(region)
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for i := 0; i < int(regionsCount); i++ {
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region = *(*TCefDraggableRegion)(common.GetParamPtr(getVal(3), i*int(regionSize)))
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regions.Append(region)
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}
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fn.(onDraggableRegionsChanged)(browse, frame, regions)
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default:
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return false
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}
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return true
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})
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}
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