Commits
Diff
diff --git a/element.go b/element.go
deleted file mode 100644
index e8215b1..0000000
--- a/element.go
+++ /dev/null
@@ -1,620 +0,0 @@
-package grim
-
-import (
- "bytes"
- "fmt"
- "grim/canvas"
- ic "image/color"
- "slices"
- "strconv"
- "strings"
-)
-
-// !TODO: Make everything a setter
-// + if things become slow (they should) due to the appendchild, add a compute pause function that skips all check for the internal running,
-// + can add to ComputeNodeStyle at the start and then removed at the end
-type Node struct {
- tagName string // non modifiable
- innerText string // modifable
- parent *Node // nm
- Children []*Node // m
- style map[string]string // nm
- ComputedStyle map[string]string // nm
- id string // m
- ClassList ClassList
- href string // m
- src string // m
- title string // m
- attribute map[string]string
- scrollLeft int // m
- scrollTop int // m
- tabIndex int // m
- contentEditable bool // m
- required bool // m
- disabled bool // m
- checked bool // m
- focused bool // nm
- hovered bool // nm
- InitalStyles map[string]string // nm
- StyleSheets *Styles // nm
- ConditionalStyles map[string]map[string]string // nm
-
- // !NOTE: ScrollHeight is the amount of scroll left, not the total amount of scroll
- // + if you want the same scrollHeight like js the add the height of the element to it
- ScrollHeight int // nm
- ScrollWidth int // nm
- Canvas *canvas.Canvas
- PseudoElements map[string]map[string]string // nm
-
- Value string // m
- OnClick func(Event)
- OnContextMenu func(Event)
- OnMouseDown func(Event)
- OnMouseUp func(Event)
- OnMouseEnter func(Event)
- OnMouseLeave func(Event)
- OnMouseOver func(Event)
- OnMouseMove func(Event)
- OnScroll func(Event)
- Properties Properties
-}
-
-// !TODO: I would like to remove element.Node.Properties if possible but I don't think it is possible
-type Properties struct {
- Id string
- EventListeners map[string][]func(Event)
- // Events []string
- // !TODO: Make selected work
- Selected []float32
-}
-
-type State struct {
- X float32
- Y float32
- Z float32
- Width float32
- Height float32
- Border Border
- Textures map[string]string
- EM float32
- Background []Background
- Margin BoxSpacing
- Padding BoxSpacing
- Cursor string
- Crop Crop
- Hidden bool
- ScrollHeight int
- ScrollWidth int
- ContentEditable bool
- Value string
- TabIndex int
-}
-
-type Crop struct {
- X int
- Y int
- Width int
- Height int
-}
-
-type BoxSpacing struct {
- Top float32
- Left float32
- Right float32
- Bottom float32
-}
-
-type Background struct {
- Color ic.RGBA
- Image string
- PositionX string
- PositionY string
- Size string
- Repeat string
- Origin string
- Attachment string
-}
-
-func (n *Node) TagName() string {
- return n.tagName
-}
-
-func (n *Node) Parent() *Node {
- return n.parent
-}
-
-func (n *Node) InnerText(value ...string) string {
- if len(value) != 0 {
- n.innerText = value[0]
- }
- return n.innerText
-}
-
-func (n *Node) Id(value ...string) string {
- if len(value) != 0 {
- n.id = value[0]
- }
- return n.id
-}
-
-func (n *Node) Href(value ...string) string {
- if len(value) != 0 {
- n.href = value[0]
- }
- return n.href
-}
-
-func (n *Node) Src(value ...string) string {
- if len(value) != 0 {
- n.src = value[0]
- }
- return n.src
-}
-
-func (n *Node) Title(value ...string) string {
- if len(value) != 0 {
- n.title = value[0]
- }
- return n.title
-}
-
-func (n *Node) ContentEditable(value ...bool) bool {
- if len(value) != 0 {
- n.contentEditable = value[0]
- }
- return n.contentEditable
-}
-
-func (n *Node) TabIndex(value ...int) int {
- if len(value) != 0 {
- n.tabIndex = value[0]
- }
- return n.tabIndex
-}
-
-// !MAN: Node Style getter/setter
-// + [!DEVMAN]Note: Contains all user inputed styles, all inline styles over ride stylesheet styles
-func (n *Node) SetStyle(key, value string) {
- n.style[key] = value
-}
-
-func (n *Node) GetStyle(key string) string {
- return n.style[key]
-}
-
-func (n *Node) Styles() map[string]string {
- return n.style
-}
-
-func (n *Node) GetComputedStyle(key string) string {
- return n.ComputedStyle[key]
-}
-
-// !MAN: Generates the InnerHTML of an element
-// !TODO: Add a setter
-func (n *Node) InnerHTML() string {
- // !TODO: Will need to update the styles once this can be parsed
- return InnerHTML(n)
-}
-
-// !MAN: Generates the OuterHTML of an element
-// !TODO: Add a setter
-func (n *Node) GetOuterHTML() string {
- tag, closing := NodeToHTML(n)
- return tag + InnerHTML(n) + closing
-}
-
-type ClassList struct {
- classes []string
-}
-
-// !ISSUE: Need to getstyles here
-// + try to use conditional styles
-func (c *ClassList) Add(class string) {
- if !slices.Contains(c.classes, class) {
- c.classes = append(c.classes, class)
- }
-}
-
-func (c *ClassList) Remove(class string) {
- for i, v := range c.classes {
- if v == class {
- c.classes = append(c.classes[:i], c.classes[i+1:]...)
- break
- }
- }
-}
-
-func (c *ClassList) Classes(value ...[]string) []string {
- if len(value) > 0 {
- for _, v := range value {
- c.classes = append(c.classes, v...)
- }
- }
- return c.classes
-}
-
-type Border struct {
- Top BorderSide
- Right BorderSide
- Bottom BorderSide
- Left BorderSide
- Radius BorderRadius
-}
-
-type BorderSide struct {
- Width float32
- Style string
- Color ic.RGBA
-}
-
-type BorderRadius struct {
- TopLeft float32
- TopRight float32
- BottomLeft float32
- BottomRight float32
-}
-
-// !MAN: Attribute getter
-// + name: string containing the attribute name
-// + [!DEVMAN]Note: If you want to get all of the attributes use the .attribute prop (only for element)
-func (n *Node) GetAttribute(name string) string {
- return n.attribute[name]
-}
-
-func (n *Node) SetAttribute(key, value string) {
- n.attribute[key] = value
- if n.parent != nil {
- n.StyleSheets.GetStyles(n)
- }
-}
-
-func (n *Node) CreateElement(name string) Node {
- ti := -1
-
- focusableElements := map[string]bool{
- "input": true,
- "button": true,
- "select": true,
- "textarea": true,
- "output": true,
- "a": true,
- "area": true,
- "audio": true,
- "video": true,
- "details": true,
- "label": true,
- }
-
- if focusableElements[name] {
- ti = 9999999
- }
- return Node{
- tagName: name,
- innerText: "",
- Children: []*Node{},
- id: "",
- ClassList: ClassList{
- classes: []string{},
- },
- href: "",
- src: "",
- title: "",
- attribute: make(map[string]string),
- ComputedStyle: make(map[string]string),
- ConditionalStyles: make(map[string]map[string]string),
- style: make(map[string]string),
- Value: "",
- tabIndex: ti,
- contentEditable: false,
- StyleSheets: n.StyleSheets,
- Properties: Properties{
- Id: "",
- EventListeners: make(map[string][]func(Event)),
- Selected: []float32{},
- },
- }
-}
-
-func GenerateUniqueId(parent *Node, tagName string) string {
- return parent.Properties.Id + ":" + tagName + strconv.Itoa(len(parent.Children))
-}
-
-func (n *Node) AppendChild(c *Node) {
- c.parent = n
- c.Properties.Id = GenerateUniqueId(n, c.tagName)
- n.Children = append(n.Children, c)
- if n.parent != nil {
- n.StyleSheets.GetStyles(c)
- }
-}
-
-func (n *Node) InsertAfter(c, tgt *Node) {
- c.parent = n
- c.Properties.Id = GenerateUniqueId(n, c.tagName)
- if n.parent != nil {
- n.StyleSheets.GetStyles(c)
- }
- nodeIndex := -1
- for i, v := range n.Children {
- if v.Properties.Id == tgt.Properties.Id {
- nodeIndex = i
- break
- }
- }
- if nodeIndex > -1 {
- n.Children = append(n.Children[:nodeIndex+1], append([]*Node{c}, n.Children[nodeIndex+1:]...)...)
- } else {
- n.AppendChild(c)
- }
-}
-
-func (n *Node) InsertBefore(c, tgt *Node) {
- c.parent = n
- // Set Id
-
- c.Properties.Id = GenerateUniqueId(n, c.tagName)
- if n.parent != nil {
- n.StyleSheets.GetStyles(c)
- }
- nodeIndex := -1
- for i, v := range n.Children {
- if v.Properties.Id == tgt.Properties.Id {
- nodeIndex = i
- break
- }
- }
-
- if nodeIndex > 0 {
- n.Children = append(n.Children[:nodeIndex], append([]*Node{c}, n.Children[nodeIndex:]...)...)
- } else {
- n.Children = append([]*Node{c}, n.Children...)
- }
-
-}
-
-func (n *Node) Remove() {
- nodeIndex := -1
- for i, v := range n.parent.Children {
- if v.Properties.Id == n.Properties.Id {
- nodeIndex = i
- break
- }
- }
- if nodeIndex > 0 {
- n.parent.Children = append(n.parent.Children[:nodeIndex], n.parent.Children[nodeIndex+1:]...)
- }
- n.parent.StyleSheets.GetStyles(n.parent)
-}
-
-func (n *Node) Focus() {
- n.focused = true
- ConditionalStyleHandler(n, map[string]string{})
-}
-
-func (n *Node) Blur() {
- n.focused = false
- ConditionalStyleHandler(n, map[string]string{})
-}
-
-func (n *Node) GetContext(width, height int) *canvas.Canvas {
- n.ComputedStyle["width"] = strconv.Itoa(width) + "px"
- n.ComputedStyle["height"] = strconv.Itoa(height) + "px"
- ctx := canvas.NewCanvas(width, height)
- n.Canvas = ctx
- return ctx
-}
-
-func (n *Node) ScrollTo(x, y int) {
- n.scrollLeft = x
- n.scrollTop = y
-}
-
-func (n *Node) ScrollBy(x, y int) {
- n.scrollTop += y
- n.scrollLeft += x
-}
-
-// Left, Right
-func (n *Node) GetScroll() (int, int) {
- return n.scrollLeft, n.scrollTop
-}
-
-type Event struct {
- X int
- Y int
- KeyCode int
- ScrollX int
- ScrollY int
- Key string
- CtrlKey bool
- MetaKey bool
- ShiftKey bool
- AltKey bool
- Click bool
- ContextMenu bool
- MouseDown bool
- MouseUp bool
- MouseEnter bool
- MouseLeave bool
- MouseOver bool
- MouseMove bool
- KeyUp bool
- KeyDown bool
- KeyPress bool
- Input bool
- Target *Node
- Name string
- Data any
- Value string
- Hover bool
-}
-
-type EventList struct {
- Event Event
- List []string
-}
-
-func (node *Node) AddEventListener(name string, callback func(Event)) {
- if node.Properties.EventListeners == nil {
- node.Properties.EventListeners = make(map[string][]func(Event))
- }
- if node.Properties.EventListeners[name] == nil {
- node.Properties.EventListeners[name] = []func(Event){}
- }
- if !funcInSlice(callback, node.Properties.EventListeners[name]) {
- node.Properties.EventListeners[name] = append(node.Properties.EventListeners[name], callback)
- }
-}
-
-func (node *Node) DispatchEvent(event Event) {
- for _, v := range node.Properties.EventListeners[event.Name] {
- v(event)
- }
-}
-
-func funcInSlice(f func(Event), slice []func(Event)) bool {
- for _, item := range slice {
- // Compare function values directly
- if fmt.Sprintf("%p", item) == fmt.Sprintf("%p", f) {
- return true
- }
- }
- return false
-}
-
-func NodeToHTML(node *Node) (string, string) {
- var buffer bytes.Buffer
- buffer.WriteString("<" + node.tagName)
-
- if node.contentEditable {
- buffer.WriteString(" contentEditable=\"true\"")
- }
-
- // Add ID if present
- if node.id != "" {
- buffer.WriteString(" id=\"" + node.id + "\"")
- }
-
- // Add ID if present
- if node.title != "" {
- buffer.WriteString(" title=\"" + node.title + "\"")
- }
-
- // Add ID if present
- if node.src != "" {
- buffer.WriteString(" src=\"" + node.src + "\"")
- }
-
- // Add ID if present
- if node.href != "" {
- buffer.WriteString(" href=\"" + node.href + "\"")
- }
-
- // Add class list if present
- if len(node.ClassList.Classes()) > 0 {
- classes := ""
- for _, v := range node.ClassList.Classes() {
- if len(v) > 0 {
- if string(v[0]) != ":" {
- classes += v + " "
- }
- }
- }
- classes = strings.TrimSpace(classes)
- if len(classes) > 0 {
- buffer.WriteString(" class=\"" + classes + "\"")
- }
- }
-
- styles := node.Styles()
-
- // Add style if present
- if len(styles) > 0 {
-
- style := ""
- for key, value := range styles {
- if key != "inlineText" {
- style += key + ":" + value + ";"
- }
- }
- style = strings.TrimSpace(style)
-
- if len(style) > 0 {
- buffer.WriteString(" style=\"" + style + "\"")
- }
- }
-
- attributeString := ""
- for k, v := range node.attribute {
- attributeString += " " + k + "=\"" + v + "\""
- }
- // Add other attributes if present
- buffer.WriteString(attributeString)
-
- buffer.WriteString(">")
-
- // Add inner text if present
- if node.innerText != "" && !ChildrenHaveText(node) {
- buffer.WriteString(node.innerText)
- }
- return buffer.String(), ""
-}
-
-func OuterHTML(node *Node) string {
- var buffer bytes.Buffer
-
- tag, closing := NodeToHTML(node)
-
- buffer.WriteString(tag)
-
- // Recursively add children
- for _, child := range node.Children {
- buffer.WriteString(OuterHTML(child))
- }
-
- buffer.WriteString(closing)
-
- return buffer.String()
-}
-
-func InnerHTML(node *Node) string {
- var buffer bytes.Buffer
- // Recursively add children
- for _, child := range node.Children {
- buffer.WriteString(OuterHTML(child))
- }
- return buffer.String()
-}
-
-func ChildrenHaveText(n *Node) bool {
- for _, child := range n.Children {
- if len(strings.TrimSpace(child.innerText)) != 0 {
- return true
- }
- // Recursively check if any child nodes have text
- if ChildrenHaveText(child) {
- return true
- }
- }
- return false
-}
-
-func CopyDocument(node *Node, parent *Node) *Node {
- n := *node
- n.parent = parent
- // !DEVMAN: Copying is done here, would like to remove this and add it to ComputeNodeStyle, so I can save a tree climb
-
- if len(node.Children) > 0 {
- n.Children = make([]*Node, 0, len(node.Children))
- for i := range node.Children {
- n.Children = append(n.Children, node.Children[i])
- }
- for i := range node.Children {
- n.Children[i] = CopyDocument(node.Children[i], &n)
- }
-
- }
-
- return &n
-}
package grim
import (
"bytes"
"fmt"
"grim/canvas"
ic "image/color"
"slices"
"strconv"
"strings"
)
// !TODO: Make everything a setter
// + if things become slow (they should) due to the appendchild, add a compute pause function that skips all check for the internal running,
// + can add to ComputeNodeStyle at the start and then removed at the end
type Node struct {
tagName string // non modifiable
innerText string // modifable
parent *Node // nm
Children []*Node // m
style map[string]string // nm
ComputedStyle map[string]string // nm
id string // m
ClassList ClassList
href string // m
src string // m
title string // m
attribute map[string]string
scrollLeft int // m
scrollTop int // m
tabIndex int // m
contentEditable bool // m
required bool // m
disabled bool // m
checked bool // m
focused bool // nm
hovered bool // nm
InitalStyles map[string]string // nm
StyleSheets *Styles // nm
ConditionalStyles map[string]map[string]string // nm
// !NOTE: ScrollHeight is the amount of scroll left, not the total amount of scroll
// + if you want the same scrollHeight like js the add the height of the element to it
ScrollHeight int // nm
ScrollWidth int // nm
Canvas *canvas.Canvas
PseudoElements map[string]map[string]string // nm
Value string // m
OnClick func(Event)
OnContextMenu func(Event)
OnMouseDown func(Event)
OnMouseUp func(Event)
OnMouseEnter func(Event)
OnMouseLeave func(Event)
OnMouseOver func(Event)
OnMouseMove func(Event)
OnScroll func(Event)
Properties Properties
}
// !TODO: I would like to remove element.Node.Properties if possible but I don't think it is possible
type Properties struct {
Id string
EventListeners map[string][]func(Event)
// Events []string
// !TODO: Make selected work
Selected []float32
}
type State struct {
X float32
Y float32
Z float32
Width float32
Height float32
Border Border
Textures map[string]string
EM float32
Background []Background
Margin BoxSpacing
Padding BoxSpacing
Cursor string
Crop Crop
Hidden bool
ScrollHeight int
ScrollWidth int
ContentEditable bool
Value string
TabIndex int
}
type Crop struct {
X int
Y int
Width int
Height int
}
type BoxSpacing struct {
Top float32
Left float32
Right float32
Bottom float32
}
type Background struct {
Color ic.RGBA
Image string
PositionX string
PositionY string
Size string
Repeat string
Origin string
Attachment string
}
func (n *Node) TagName() string {
return n.tagName
}
func (n *Node) Parent() *Node {
return n.parent
}
func (n *Node) InnerText(value ...string) string {
if len(value) != 0 {
n.innerText = value[0]
}
return n.innerText
}
func (n *Node) Id(value ...string) string {
if len(value) != 0 {
n.id = value[0]
}
return n.id
}
func (n *Node) Href(value ...string) string {
if len(value) != 0 {
n.href = value[0]
}
return n.href
}
func (n *Node) Src(value ...string) string {
if len(value) != 0 {
n.src = value[0]
}
return n.src
}
func (n *Node) Title(value ...string) string {
if len(value) != 0 {
n.title = value[0]
}
return n.title
}
func (n *Node) ContentEditable(value ...bool) bool {
if len(value) != 0 {
n.contentEditable = value[0]
}
return n.contentEditable
}
func (n *Node) TabIndex(value ...int) int {
if len(value) != 0 {
n.tabIndex = value[0]
}
return n.tabIndex
}
// !MAN: Node Style getter/setter
// + [!DEVMAN]Note: Contains all user inputed styles, all inline styles over ride stylesheet styles
func (n *Node) SetStyle(key, value string) {
n.style[key] = value
}
func (n *Node) GetStyle(key string) string {
return n.style[key]
}
func (n *Node) Styles() map[string]string {
return n.style
}
func (n *Node) GetComputedStyle(key string) string {
return n.ComputedStyle[key]
}
// !MAN: Generates the InnerHTML of an element
// !TODO: Add a setter
func (n *Node) InnerHTML() string {
// !TODO: Will need to update the styles once this can be parsed
return InnerHTML(n)
}
// !MAN: Generates the OuterHTML of an element
// !TODO: Add a setter
func (n *Node) GetOuterHTML() string {
tag, closing := NodeToHTML(n)
return tag + InnerHTML(n) + closing
}
type ClassList struct {
classes []string
}
// !ISSUE: Need to getstyles here
// + try to use conditional styles
func (c *ClassList) Add(class string) {
if !slices.Contains(c.classes, class) {
c.classes = append(c.classes, class)
}
}
func (c *ClassList) Remove(class string) {
for i, v := range c.classes {
if v == class {
c.classes = append(c.classes[:i], c.classes[i+1:]...)
break
}
}
}
func (c *ClassList) Classes(value ...[]string) []string {
if len(value) > 0 {
for _, v := range value {
c.classes = append(c.classes, v...)
}
}
return c.classes
}
type Border struct {
Top BorderSide
Right BorderSide
Bottom BorderSide
Left BorderSide
Radius BorderRadius
}
type BorderSide struct {
Width float32
Style string
Color ic.RGBA
}
type BorderRadius struct {
TopLeft float32
TopRight float32
BottomLeft float32
BottomRight float32
}
// !MAN: Attribute getter
// + name: string containing the attribute name
// + [!DEVMAN]Note: If you want to get all of the attributes use the .attribute prop (only for element)
func (n *Node) GetAttribute(name string) string {
return n.attribute[name]
}
func (n *Node) SetAttribute(key, value string) {
n.attribute[key] = value
if n.parent != nil {
n.StyleSheets.GetStyles(n)
}
}
func (n *Node) CreateElement(name string) Node {
ti := -1
focusableElements := map[string]bool{
"input": true,
"button": true,
"select": true,
"textarea": true,
"output": true,
"a": true,
"area": true,
"audio": true,
"video": true,
"details": true,
"label": true,
}
if focusableElements[name] {
ti = 9999999
}
return Node{
tagName: name,
innerText: "",
Children: []*Node{},
id: "",
ClassList: ClassList{
classes: []string{},
},
href: "",
src: "",
title: "",
attribute: make(map[string]string),
ComputedStyle: make(map[string]string),
ConditionalStyles: make(map[string]map[string]string),
style: make(map[string]string),
Value: "",
tabIndex: ti,
contentEditable: false,
StyleSheets: n.StyleSheets,
Properties: Properties{
Id: "",
EventListeners: make(map[string][]func(Event)),
Selected: []float32{},
},
}
}
func GenerateUniqueId(parent *Node, tagName string) string {
return parent.Properties.Id + ":" + tagName + strconv.Itoa(len(parent.Children))
}
func (n *Node) AppendChild(c *Node) {
c.parent = n
c.Properties.Id = GenerateUniqueId(n, c.tagName)
n.Children = append(n.Children, c)
if n.parent != nil {
n.StyleSheets.GetStyles(c)
}
}
func (n *Node) InsertAfter(c, tgt *Node) {
c.parent = n
c.Properties.Id = GenerateUniqueId(n, c.tagName)
if n.parent != nil {
n.StyleSheets.GetStyles(c)
}
nodeIndex := -1
for i, v := range n.Children {
if v.Properties.Id == tgt.Properties.Id {
nodeIndex = i
break
}
}
if nodeIndex > -1 {
n.Children = append(n.Children[:nodeIndex+1], append([]*Node{c}, n.Children[nodeIndex+1:]...)...)
} else {
n.AppendChild(c)
}
}
func (n *Node) InsertBefore(c, tgt *Node) {
c.parent = n
// Set Id
c.Properties.Id = GenerateUniqueId(n, c.tagName)
if n.parent != nil {
n.StyleSheets.GetStyles(c)
}
nodeIndex := -1
for i, v := range n.Children {
if v.Properties.Id == tgt.Properties.Id {
nodeIndex = i
break
}
}
if nodeIndex > 0 {
n.Children = append(n.Children[:nodeIndex], append([]*Node{c}, n.Children[nodeIndex:]...)...)
} else {
n.Children = append([]*Node{c}, n.Children...)
}
}
func (n *Node) Remove() {
nodeIndex := -1
for i, v := range n.parent.Children {
if v.Properties.Id == n.Properties.Id {
nodeIndex = i
break
}
}
if nodeIndex > 0 {
n.parent.Children = append(n.parent.Children[:nodeIndex], n.parent.Children[nodeIndex+1:]...)
}
n.parent.StyleSheets.GetStyles(n.parent)
}
func (n *Node) Focus() {
n.focused = true
ConditionalStyleHandler(n, map[string]string{})
}
func (n *Node) Blur() {
n.focused = false
ConditionalStyleHandler(n, map[string]string{})
}
func (n *Node) GetContext(width, height int) *canvas.Canvas {
n.ComputedStyle["width"] = strconv.Itoa(width) + "px"
n.ComputedStyle["height"] = strconv.Itoa(height) + "px"
ctx := canvas.NewCanvas(width, height)
n.Canvas = ctx
return ctx
}
func (n *Node) ScrollTo(x, y int) {
n.scrollLeft = x
n.scrollTop = y
}
func (n *Node) ScrollBy(x, y int) {
n.scrollTop += y
n.scrollLeft += x
}
// Left, Right
func (n *Node) GetScroll() (int, int) {
return n.scrollLeft, n.scrollTop
}
type Event struct {
X int
Y int
KeyCode int
ScrollX int
ScrollY int
Key string
CtrlKey bool
MetaKey bool
ShiftKey bool
AltKey bool
Click bool
ContextMenu bool
MouseDown bool
MouseUp bool
MouseEnter bool
MouseLeave bool
MouseOver bool
MouseMove bool
KeyUp bool
KeyDown bool
KeyPress bool
Input bool
Target *Node
Name string
Data any
Value string
Hover bool
}
type EventList struct {
Event Event
List []string
}
func (node *Node) AddEventListener(name string, callback func(Event)) {
if node.Properties.EventListeners == nil {
node.Properties.EventListeners = make(map[string][]func(Event))
}
if node.Properties.EventListeners[name] == nil {
node.Properties.EventListeners[name] = []func(Event){}
}
if !funcInSlice(callback, node.Properties.EventListeners[name]) {
node.Properties.EventListeners[name] = append(node.Properties.EventListeners[name], callback)
}
}
func (node *Node) DispatchEvent(event Event) {
for _, v := range node.Properties.EventListeners[event.Name] {
v(event)
}
}
func funcInSlice(f func(Event), slice []func(Event)) bool {
for _, item := range slice {
// Compare function values directly
if fmt.Sprintf("%p", item) == fmt.Sprintf("%p", f) {
return true
}
}
return false
}
func NodeToHTML(node *Node) (string, string) {
var buffer bytes.Buffer
buffer.WriteString("<" + node.tagName)
if node.contentEditable {
buffer.WriteString(" contentEditable=\"true\"")
}
// Add ID if present
if node.id != "" {
buffer.WriteString(" id=\"" + node.id + "\"")
}
// Add ID if present
if node.title != "" {
buffer.WriteString(" title=\"" + node.title + "\"")
}
// Add ID if present
if node.src != "" {
buffer.WriteString(" src=\"" + node.src + "\"")
}
// Add ID if present
if node.href != "" {
buffer.WriteString(" href=\"" + node.href + "\"")
}
// Add class list if present
if len(node.ClassList.Classes()) > 0 {
classes := ""
for _, v := range node.ClassList.Classes() {
if len(v) > 0 {
if string(v[0]) != ":" {
classes += v + " "
}
}
}
classes = strings.TrimSpace(classes)
if len(classes) > 0 {
buffer.WriteString(" class=\"" + classes + "\"")
}
}
styles := node.Styles()
// Add style if present
if len(styles) > 0 {
style := ""
for key, value := range styles {
if key != "inlineText" {
style += key + ":" + value + ";"
}
}
style = strings.TrimSpace(style)
if len(style) > 0 {
buffer.WriteString(" style=\"" + style + "\"")
}
}
attributeString := ""
for k, v := range node.attribute {
attributeString += " " + k + "=\"" + v + "\""
}
// Add other attributes if present
buffer.WriteString(attributeString)
buffer.WriteString(">")
// Add inner text if present
if node.innerText != "" && !ChildrenHaveText(node) {
buffer.WriteString(node.innerText)
}
return buffer.String(), ""
}
func OuterHTML(node *Node) string {
var buffer bytes.Buffer
tag, closing := NodeToHTML(node)
buffer.WriteString(tag)
// Recursively add children
for _, child := range node.Children {
buffer.WriteString(OuterHTML(child))
}
buffer.WriteString(closing)
return buffer.String()
}
func InnerHTML(node *Node) string {
var buffer bytes.Buffer
// Recursively add children
for _, child := range node.Children {
buffer.WriteString(OuterHTML(child))
}
return buffer.String()
}
func ChildrenHaveText(n *Node) bool {
for _, child := range n.Children {
if len(strings.TrimSpace(child.innerText)) != 0 {
return true
}
// Recursively check if any child nodes have text
if ChildrenHaveText(child) {
return true
}
}
return false
}
func CopyDocument(node *Node, parent *Node) *Node {
n := *node
n.parent = parent
// !DEVMAN: Copying is done here, would like to remove this and add it to ComputeNodeStyle, so I can save a tree climb
if len(node.Children) > 0 {
n.Children = make([]*Node, 0, len(node.Children))
for i := range node.Children {
n.Children = append(n.Children, node.Children[i])
}
for i := range node.Children {
n.Children[i] = CopyDocument(node.Children[i], &n)
}
}
return &n
}
