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2804 lines (2335 loc) · 71.2 KB
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// Package dom provides GopherJS bindings for the JavaScript DOM APIs.
//
// This package is an in progress effort of providing idiomatic Go
// bindings for the DOM, wrapping the JavaScript DOM APIs. The API is
// neither complete nor frozen yet, but a great amount of the DOM is
// already useable.
//
// While the package tries to be idiomatic Go, it also tries to stick
// closely to the JavaScript APIs, so that one does not need to learn
// a new set of APIs if one is already familiar with it.
//
// One decision that hasn't been made yet is what parts exactly should
// be part of this package. It is, for example, possible that the
// canvas APIs will live in a separate package. On the other hand,
// types such as StorageEvent (the event that gets fired when the
// HTML5 storage area changes) will be part of this package, simply
// due to how the DOM is structured – even if the actual storage APIs
// might live in a separate package. This might require special care
// to avoid circular dependencies.
//
//
// Getting started
//
// The usual entry point of using the dom package is by using the
// GetWindow() function which will return a Window, from which you can
// get things such as the current Document.
//
//
// Interfaces
//
// The DOM has a big amount of different element and event types, but
// they all follow three interfaces. All functions that work on or
// return generic elements/events will return one of the three
// interfaces Element, HTMLElement or Event. In these interface values
// there will be concrete implementations, such as
// HTMLParagraphElement or FocusEvent. It's also not unusual that
// values of type Element also implement HTMLElement. In all cases,
// type assertions can be used.
//
// Example:
// el := dom.GetWindow().Document().QuerySelector(".some-element")
// htmlEl := el.(dom.HTMLElement)
// pEl := el.(*dom.HTMLParagraphElement)
//
//
// Live collections
//
// Several functions in the JavaScript DOM return "live"
// collections of elements, that is collections that will be
// automatically updated when elements get removed or added to the
// once created, will not automatically reflect updates to the DOM.
// This is primarily done so that slices can actually be used, as
// opposed to a form of iterator, but also because we think that
// magically changing data isn't Go's nature and that snapshots of
// state are a lot easier to reason about.
//
// This does not, however, mean that all objects are snapshots.
// Elements, events and generally objects that aren't slices or maps
// are simple wrappers around JavaScript objects, and as such
// attributes as well as method calls will always return the most
// current data. To reflect this behaviour, these bindings use
// pointers to make the semantics clear. Consider the following
// example:
//
// d := dom.GetWindow().Document()
// e1 := d.GetElementByID("my-element")
// e2 := d.GetElementByID("my-element")
//
// e1.Class().SetString("some-class")
// println(e1.Class().String() == e2.Class().String())
//
// The above example will print `true`.
//
//
// DOMTokenList
//
// Some objects in the JS API have two versions of attributes, one
// that returns a string and one that returns a DOMTokenList to ease
// manipulation of string-delimited lists. Some other objects only
// provide DOMTokenList, sometimes DOMSettableTokenList. To simplify
// these bindings, only the DOMTokenList variant will be made
// available, by the type TokenList. In cases where the string
// attribute was the only way to completely replace the value, our
// TokenList will provide Set([]string) and SetString(string) methods,
// which will be able to accomplish the same. Additionally, our
// TokenList will provide methods to convert it to strings and slices.
package dom // import "honnef.co/go/js/dom"
import (
"strings"
"time"
"github.com/gopherjs/gopherjs/js"
)
func callRecover(o *js.Object, fn string, args ...interface{}) (err error) {
defer func() {
e := recover()
if e == nil {
return
}
if panicErr, ok := e.(error); ok && panicErr != nil {
err = panicErr
} else {
panic(e)
}
}()
o.Call(fn, args...)
return nil
}
func elementConstructor(o *js.Object) *js.Object {
if n := o.Get("node"); n != js.Undefined {
// Support elements wrapped in Polymer's DOM APIs.
return n.Get("constructor")
}
return o.Get("constructor")
}
func arrayToObjects(o *js.Object) []*js.Object {
var out []*js.Object
for i := 0; i < o.Length(); i++ {
out = append(out, o.Index(i))
}
return out
}
func nodeListToObjects(o *js.Object) []*js.Object {
if o.Get("constructor") == js.Global.Get("Array") {
// Support Polymer's DOM APIs, which uses Arrays instead of
// NodeLists
return arrayToObjects(o)
}
var out []*js.Object
length := o.Get("length").Int()
for i := 0; i < length; i++ {
out = append(out, o.Call("item", i))
}
return out
}
func nodeListToNodes(o *js.Object) []Node {
var out []Node
for _, obj := range nodeListToObjects(o) {
out = append(out, wrapNode(obj))
}
return out
}
func nodeListToElements(o *js.Object) []Element {
var out []Element
for _, obj := range nodeListToObjects(o) {
out = append(out, wrapElement(obj))
}
return out
}
func nodeListToHTMLElements(o *js.Object) []HTMLElement {
var out []HTMLElement
for _, obj := range nodeListToObjects(o) {
out = append(out, wrapHTMLElement(obj))
}
return out
}
func WrapDocument(o *js.Object) Document {
return wrapDocument(o)
}
func WrapDocumentFragment(o *js.Object) DocumentFragment {
return wrapDocumentFragment(o)
}
func WrapNode(o *js.Object) Node {
return wrapNode(o)
}
func WrapElement(o *js.Object) Element {
return wrapElement(o)
}
func WrapHTMLElement(o *js.Object) HTMLElement {
return wrapHTMLElement(o)
}
func wrapDocument(o *js.Object) Document {
switch elementConstructor(o) {
case js.Global.Get("HTMLDocument"):
return &htmlDocument{&document{&BasicNode{o}}}
default:
return &document{&BasicNode{o}}
}
}
func wrapDocumentFragment(o *js.Object) DocumentFragment {
switch elementConstructor(o) {
// TODO: do we have any other stuff we want to check
default:
return &documentFragment{&BasicNode{o}}
}
}
func wrapNode(o *js.Object) Node {
if o == nil || o == js.Undefined {
return nil
}
switch elementConstructor(o) {
// TODO all the non-element cases
case js.Global.Get("Text"):
return &Text{&BasicNode{o}}
default:
return wrapElement(o)
}
}
func wrapElement(o *js.Object) Element {
if o == nil || o == js.Undefined {
return nil
}
switch elementConstructor(o) {
// TODO all the non-HTML cases
default:
return wrapHTMLElement(o)
}
}
func wrapHTMLElement(o *js.Object) HTMLElement {
if o == nil || o == js.Undefined {
return nil
}
el := &BasicHTMLElement{&BasicElement{&BasicNode{o}}}
c := elementConstructor(o)
switch c {
case js.Global.Get("HTMLAnchorElement"):
return &HTMLAnchorElement{BasicHTMLElement: el, URLUtils: &URLUtils{Object: o}}
case js.Global.Get("HTMLAppletElement"):
return &HTMLAppletElement{BasicHTMLElement: el}
case js.Global.Get("HTMLAreaElement"):
return &HTMLAreaElement{BasicHTMLElement: el, URLUtils: &URLUtils{Object: o}}
case js.Global.Get("HTMLAudioElement"):
return &HTMLAudioElement{HTMLMediaElement: &HTMLMediaElement{BasicHTMLElement: el}}
case js.Global.Get("HTMLBaseElement"):
return &HTMLBaseElement{BasicHTMLElement: el}
case js.Global.Get("HTMLBodyElement"):
return &HTMLBodyElement{BasicHTMLElement: el}
case js.Global.Get("HTMLBRElement"):
return &HTMLBRElement{BasicHTMLElement: el}
case js.Global.Get("HTMLButtonElement"):
return &HTMLButtonElement{BasicHTMLElement: el}
case js.Global.Get("HTMLCanvasElement"):
return &HTMLCanvasElement{BasicHTMLElement: el}
case js.Global.Get("HTMLDataElement"):
return &HTMLDataElement{BasicHTMLElement: el}
case js.Global.Get("HTMLDataListElement"):
return &HTMLDataListElement{BasicHTMLElement: el}
case js.Global.Get("HTMLDirectoryElement"):
return &HTMLDirectoryElement{BasicHTMLElement: el}
case js.Global.Get("HTMLDivElement"):
return &HTMLDivElement{BasicHTMLElement: el}
case js.Global.Get("HTMLDListElement"):
return &HTMLDListElement{BasicHTMLElement: el}
case js.Global.Get("HTMLEmbedElement"):
return &HTMLEmbedElement{BasicHTMLElement: el}
case js.Global.Get("HTMLFieldSetElement"):
return &HTMLFieldSetElement{BasicHTMLElement: el}
case js.Global.Get("HTMLFontElement"):
return &HTMLFontElement{BasicHTMLElement: el}
case js.Global.Get("HTMLFormElement"):
return &HTMLFormElement{BasicHTMLElement: el}
case js.Global.Get("HTMLFrameElement"):
return &HTMLFrameElement{BasicHTMLElement: el}
case js.Global.Get("HTMLFrameSetElement"):
return &HTMLFrameSetElement{BasicHTMLElement: el}
case js.Global.Get("HTMLHeadElement"):
return &HTMLHeadElement{BasicHTMLElement: el}
case js.Global.Get("HTMLHeadingElement"):
return &HTMLHeadingElement{BasicHTMLElement: el}
case js.Global.Get("HTMLHtmlElement"):
return &HTMLHtmlElement{BasicHTMLElement: el}
case js.Global.Get("HTMLHRElement"):
return &HTMLHRElement{BasicHTMLElement: el}
case js.Global.Get("HTMLIFrameElement"):
return &HTMLIFrameElement{BasicHTMLElement: el}
case js.Global.Get("HTMLImageElement"):
return &HTMLImageElement{BasicHTMLElement: el}
case js.Global.Get("HTMLInputElement"):
return &HTMLInputElement{BasicHTMLElement: el}
case js.Global.Get("HTMLKeygenElement"):
return &HTMLKeygenElement{BasicHTMLElement: el}
case js.Global.Get("HTMLLabelElement"):
return &HTMLLabelElement{BasicHTMLElement: el}
case js.Global.Get("HTMLLegendElement"):
return &HTMLLegendElement{BasicHTMLElement: el}
case js.Global.Get("HTMLLIElement"):
return &HTMLLIElement{BasicHTMLElement: el}
case js.Global.Get("HTMLLinkElement"):
return &HTMLLinkElement{BasicHTMLElement: el}
case js.Global.Get("HTMLMapElement"):
return &HTMLMapElement{BasicHTMLElement: el}
case js.Global.Get("HTMLMediaElement"):
return &HTMLMediaElement{BasicHTMLElement: el}
case js.Global.Get("HTMLMenuElement"):
return &HTMLMenuElement{BasicHTMLElement: el}
case js.Global.Get("HTMLMetaElement"):
return &HTMLMetaElement{BasicHTMLElement: el}
case js.Global.Get("HTMLMeterElement"):
return &HTMLMeterElement{BasicHTMLElement: el}
case js.Global.Get("HTMLModElement"):
return &HTMLModElement{BasicHTMLElement: el}
case js.Global.Get("HTMLObjectElement"):
return &HTMLObjectElement{BasicHTMLElement: el}
case js.Global.Get("HTMLOListElement"):
return &HTMLOListElement{BasicHTMLElement: el}
case js.Global.Get("HTMLOptGroupElement"):
return &HTMLOptGroupElement{BasicHTMLElement: el}
case js.Global.Get("HT
10000
MLOptionElement"):
return &HTMLOptionElement{BasicHTMLElement: el}
case js.Global.Get("HTMLOutputElement"):
return &HTMLOutputElement{BasicHTMLElement: el}
case js.Global.Get("HTMLParagraphElement"):
return &HTMLParagraphElement{BasicHTMLElement: el}
case js.Global.Get("HTMLParamElement"):
return &HTMLParamElement{BasicHTMLElement: el}
case js.Global.Get("HTMLPreElement"):
return &HTMLPreElement{BasicHTMLElement: el}
case js.Global.Get("HTMLProgressElement"):
return &HTMLProgressElement{BasicHTMLElement: el}
case js.Global.Get("HTMLQuoteElement"):
return &HTMLQuoteElement{BasicHTMLElement: el}
case js.Global.Get("HTMLScriptElement"):
return &HTMLScriptElement{BasicHTMLElement: el}
case js.Global.Get("HTMLSelectElement"):
return &HTMLSelectElement{BasicHTMLElement: el}
case js.Global.Get("HTMLSourceElement"):
return &HTMLSourceElement{BasicHTMLElement: el}
case js.Global.Get("HTMLSpanElement"):
return &HTMLSpanElement{BasicHTMLElement: el}
case js.Global.Get("HTMLStyleElement"):
return &HTMLStyleElement{BasicHTMLElement: el}
case js.Global.Get("HTMLTableElement"):
return &HTMLTableElement{BasicHTMLElement: el}
case js.Global.Get("HTMLTableCaptionElement"):
return &HTMLTableCaptionElement{BasicHTMLElement: el}
case js.Global.Get("HTMLTableCellElement"):
return &HTMLTableCellElement{BasicHTMLElement: el}
case js.Global.Get("HTMLTableDataCellElement"):
return &HTMLTableDataCellElement{BasicHTMLElement: el}
case js.Global.Get("HTMLTableHeaderCellElement"):
return &HTMLTableHeaderCellElement{BasicHTMLElement: el}
case js.Global.Get("HTMLTableColElement"):
return &HTMLTableColElement{BasicHTMLElement: el}
case js.Global.Get("HTMLTableRowElement"):
return &HTMLTableRowElement{BasicHTMLElement: el}
case js.Global.Get("HTMLTableSectionElement"):
return &HTMLTableSectionElement{BasicHTMLElement: el}
case js.Global.Get("HTMLTextAreaElement"):
return &HTMLTextAreaElement{BasicHTMLElement: el}
case js.Global.Get("HTMLTimeElement"):
return &HTMLTimeElement{BasicHTMLElement: el}
case js.Global.Get("HTMLTitleElement"):
return &HTMLTitleElement{BasicHTMLElement: el}
case js.Global.Get("HTMLTrackElement"):
return &HTMLTrackElement{BasicHTMLElement: el}
case js.Global.Get("HTMLUListElement"):
return &HTMLUListElement{BasicHTMLElement: el}
case js.Global.Get("HTMLUnknownElement"):
return &HTMLUnknownElement{BasicHTMLElement: el}
case js.Global.Get("HTMLVideoElement"):
return &HTMLVideoElement{HTMLMediaElement: &HTMLMediaElement{BasicHTMLElement: el}}
case js.Global.Get("HTMLElement"):
return el
default:
return el
}
}
func getForm(o *js.Object) *HTMLFormElement {
form := wrapHTMLElement(o.Get("form"))
if form == nil {
return nil
}
return form.(*HTMLFormElement)
}
func getLabels(o *js.Object) []*HTMLLabelElement {
labels := nodeListToElements(o.Get("labels"))
out := make([]*HTMLLabelElement, len(labels))
for i, label := range labels {
out[i] = label.(*HTMLLabelElement)
}
return out
}
func getOptions(o *js.Object, attr string) []*HTMLOptionElement {
options := nodeListToElements(o.Get(attr))
out := make([]*HTMLOptionElement, len(options))
for i, option := range options {
out[i] = option.(*HTMLOptionElement)
}
return out
}
func GetWindow() Window {
return &window{js.Global}
}
type TokenList struct {
dtl *js.Object // the underlying DOMTokenList
o *js.Object // the object to which the DOMTokenList belongs
sa string // the name of the corresponding string attribute, empty if there isn't one
Length int `js:"length"`
}
func (tl *TokenList) Item(idx int) string {
o := tl.dtl.Call("item", idx)
if o == nil || o == js.Undefined {
return ""
}
return o.String()
}
func (tl *TokenList) Contains(token string) bool {
return tl.dtl.Call("contains", token).Bool()
}
func (tl *TokenList) Add(token string) {
tl.dtl.Call("add", token)
}
func (tl *TokenList) Remove(token string) {
tl.dtl.Call("remove", token)
}
func (tl *TokenList) Toggle(token string) {
tl.dtl.Call("toggle", token)
}
func (tl *TokenList) String() string {
if tl.sa != "" {
return tl.o.Get(tl.sa).String()
}
if tl.dtl.Get("constructor") == js.Global.Get("DOMSettableTokenList") {
return tl.dtl.Get("value").String()
}
// We could manually construct the string, but I am not aware of
// any case where we have neither a string attribute nor
// DOMSettableTokenList.
return ""
}
func (tl *TokenList) Slice() []string {
var out []string
length := tl.dtl.Get("length").Int()
for i := 0; i < length; i++ {
out = append(out, tl.dtl.Call("item", i).String())
}
return out
}
// SetString sets the TokenList's value to the space-separated list of
// tokens in s.
func (tl *TokenList) SetString(s string) {
if tl.sa != "" {
tl.o.Set(tl.sa, s)
return
}
if tl.dtl.Get("constructor") == js.Global.Get("DOMSettableTokenList") {
tl.dtl.Set("value", s)
return
}
// This shouldn't be possible
panic("no way to SetString on this TokenList")
}
// Set sets the TokenList's value to the list of tokens in s.
//
// Individual tokens in s shouldn't countain spaces.
func (tl *TokenList) Set(s []string) {
tl.SetString(strings.Join(s, " "))
}
type Document interface {
Node
ParentNode
Async() bool
SetAsync(bool)
Doctype() DocumentType
DocumentElement() Element
DocumentURI() string
Implementation() DOMImplementation
LastStyleSheetSet() string
PreferredStyleSheetSet() string // TODO correct type?
SelectedStyleSheetSet() string // TODO correct type?
StyleSheets() []StyleSheet // TODO s/StyleSheet/Stylesheet/ ?
StyleSheetSets() []StyleSheet // TODO correct type?
AdoptNode(node Node) Node
ImportNode(node Node, deep bool) Node
CreateElement(name string) Element
CreateElementNS(namespace, name string) Element
CreateTextNode(s string) *Text
ElementFromPoint(x, y int) Element
EnableStyleSheetsForSet(name string)
GetElementsByClassName(name string) []Element
GetElementsByTagName(name string) []Element
GetElementsByTagNameNS(ns, name string) []Element
GetElementByID(id string) Element
QuerySelector(sel string) Element
QuerySelectorAll(sel string) []Element
CreateDocumentFragment() DocumentFragment
}
type DocumentFragment interface {
Node
ParentNode
QuerySelector(sel string) Element
QuerySelectorAll(sel string) []Element
GetElementByID(id string) Element
}
type HTMLDocument interface {
Document
ActiveElement() HTMLElement
Body() HTMLElement
Cookie() string
SetCookie(string)
DefaultView() Window
DesignMode() bool
SetDesignMode(bool)
Domain() string
SetDomain(string)
Forms() []*HTMLFormElement
Head() *HTMLHeadElement
Images() []*HTMLImageElement
LastModified() time.Time
Links() []HTMLElement
Location() *Location
Plugins() []*HTMLEmbedElement
ReadyState() string
Referrer() string
Scripts() []*HTMLScriptElement
Title() string
SetTitle(string)
URL() string
// TODO HTMLDocument methods
}
type documentFragment struct {
*BasicNode
}
func (d documentFragment) GetElementByID(id string) Element {
return wrapElement(d.Call("getElementById", id))
}
func (d documentFragment) QuerySelector(sel string) Element {
return (&BasicElement{&BasicNode{d.Object}}).QuerySelector(sel)
}
func (d documentFragment) QuerySelectorAll(sel string) []Element {
return (&BasicElement{&BasicNode{d.Object}}).QuerySelectorAll(sel)
}
type document struct {
*BasicNode
}
type htmlDocument struct {
*document
}
func (d *htmlDocument) ActiveElement() HTMLElement {
return wrapHTMLElement(d.Get("activeElement"))
}
func (d *htmlDocument) Body() HTMLElement {
return wrapHTMLElement(d.Get("body"))
}
func (d *htmlDocument) Cookie() string {
return d.Get("cookie").String()
}
func (d *htmlDocument) SetCookie(s string) {
d.Set("cookie", s)
}
func (d *htmlDocument) DefaultView() Window {
return &window{d.Get("defaultView")}
}
func (d *htmlDocument) DesignMode() bool {
s := d.Get("designMode").String()
if s == "off" {
return false
}
return true
}
func (d *htmlDocument) SetDesignMode(b bool) {
s := "off"
if b {
s = "on"
}
d.Set("designMode", s)
}
func (d *htmlDocument) Domain() string {
return d.Get("domain").String()
}
func (d *htmlDocument) SetDomain(s string) {
d.Set("domain", s)
}
func (d *htmlDocument) Forms() []*HTMLFormElement {
var els []*HTMLFormElement
forms := d.Get("forms")
length := forms.Get("length").Int()
for i := 0; i < length; i++ {
els = append(els, wrapHTMLElement(forms.Call("item", i)).(*HTMLFormElement))
}
return els
}
func (d *htmlDocument) Head() *HTMLHeadElement {
head := wrapElement(d.Get("head"))
if head == nil {
return nil
}
return head.(*HTMLHeadElement)
}
func (d *htmlDocument) Images() []*HTMLImageElement {
var els []*HTMLImageElement
images := d.Get("images")
length := images.Get("length").Int()
for i := 0; i < length; i++ {
els = append(els, wrapHTMLElement(images.Call("item", i)).(*HTMLImageElement))
}
return els
}
func (d *htmlDocument) LastModified() time.Time {
return d.Get("lastModified").Interface().(time.Time)
}
func (d *htmlDocument) Links() []HTMLElement {
var els []HTMLElement
links := d.Get("links")
length := links.Get("length").Int()
for i := 0; i < length; i++ {
els = append(els, wrapHTMLElement(links.Call("item", i)))
}
return els
}
func (d *htmlDocument) Location() *Location {
o := d.Get("location")
return &Location{Object: o, URLUtils: &URLUtils{Object: o}}
}
func (d *htmlDocument) Plugins() []*HTMLEmbedElement {
var els []*HTMLEmbedElement
forms := d.Get("plugins")
length := forms.Get("length").Int()
for i := 0; i < length; i++ {
els = append(els, wrapHTMLElement(forms.Call("item", i)).(*HTMLEmbedElement))
}
return els
}
func (d *htmlDocument) ReadyState() string {
return d.Get("readyState").String()
}
func (d *htmlDocument) Referrer() string {
return d.Get("referrer").String()
}
func (d *htmlDocument) Scripts() []*HTMLScriptElement {
var els []*HTMLScriptElement
forms := d.Get("scripts")
length := forms.Get("length").Int()
for i := 0; i < length; i++ {
els = append(els, wrapHTMLElement(forms.Call("item", i)).(*HTMLScriptElement))
}
return els
}
func (d *htmlDocument) Title() string {
return d.Get("title").String()
}
func (d *htmlDocument) SetTitle(s string) {
d.Set("title", s)
}
func (d *htmlDocument) URL() string {
return d.Get("url").String()
}
func (d document) Async() bool {
return d.Get("async").Bool()
}
func (d document) SetAsync(b bool) {
d.Set("async", b)
}
func (d document) Doctype() DocumentType {
// FIXME implement
panic("not implemented")
}
func (d document) DocumentElement() Element {
return wrapElement(d.Get("documentElement"))
}
func (d document) DocumentURI() string {
return d.Get("documentURI").String()
}
func (d document) Implementation() DOMImplementation {
// FIXME implement
panic("not implemented")
}
func (d document) LastStyleSheetSet() string {
return d.Get("lastStyleSheetSet").String()
}
func (d document) PreferredStyleSheetSet() string {
return d.Get("preferredStyleSheetSet").String()
}
func (d document) SelectedStyleSheetSet() string {
return d.Get("selectedStyleSheetSet").String()
}
func (d document) StyleSheets() []StyleSheet {
// FIXME implement
panic("not implemented")
}
func (d document) StyleSheetSets() []StyleSheet {
// FIXME implement
panic("not implemented")
}
func (d document) AdoptNode(node Node) Node {
return wrapNode(d.Call("adoptNode", node.Underlying()))
}
func (d document) ImportNode(node Node, deep bool) Node {
return wrapNode(d.Call("importNode", node.Underlying(), deep))
}
func (d document) CreateDocumentFragment() DocumentFragment {
return wrapDocumentFragment(d.Call("createDocumentFragment"))
}
func (d document) CreateElement(name string) Element {
return wrapElement(d.Call("createElement", name))
}
func (d document) CreateElementNS(ns string, name string) Element {
return wrapElement(d.Call("createElement", ns, name))
}
func (d document) CreateTextNode(s string) *Text {
return wrapNode(d.Call("createTextNode", s)).(*Text)
}
func (d document) ElementFromPoint(x, y int) Element {
return wrapElement(d.Call("elementFromPoint", x, y))
}
func (d document) EnableStyleSheetsForSet(name string) {
d.Call("enableStyleSheetsForSet", name)
}
func (d document) GetElementsByClassName(name string) []Element {
return (&BasicElement{&BasicNode{d.Object}}).GetElementsByClassName(name)
}
func (d document) GetElementsByTagName(name string) []Element {
return (&BasicElement{&BasicNode{d.Object}}).GetElementsByTagName(name)
}
func (d document) GetElementsByTagNameNS(ns, name string) []Element {
return (&BasicElement{&BasicNode{d.Object}}).GetElementsByTagNameNS(ns, name)
}
func (d document) GetElementByID(id string) Element {
return wrapElement(d.Call("getElementById", id))
}
func (d document) QuerySelector(sel string) Element {
return (&BasicElement{&BasicNode{d.Object}}).QuerySelector(sel)
}
func (d document) QuerySelectorAll(sel string) []Element {
return (&BasicElement{&BasicNode{d.Object}}).QuerySelectorAll(sel)
}
type URLUtils struct {
*js.Object
Href string `js:"href"`
Protocol string `js:"protocol"`
Host string `js:"host"`
Hostname string `js:"hostname"`
Port string `js:"port"`
Pathname string `js:"pathname"`
Search string `js:"search"`
Hash string `js:"hash"`
Username string `js:"username"`
Password string `js:"password"`
Origin string `js:"origin"`
}
// TODO Location methods
type Location struct {
*js.Object
*URLUtils
}
type HTMLElement interface {
Element
GlobalEventHandlers
AccessKey() string
Dataset() map[string]string
SetAccessKey(string)
AccessKeyLabel() string
SetAccessKeyLabel(string)
ContentEditable() string
SetContentEditable(string)
IsContentEditable() bool
Dir() string
SetDir(string)
Draggable() bool
SetDraggable(bool)
Lang() string
SetLang(string)
OffsetHeight() float64
OffsetLeft() float64
OffsetParent() HTMLElement
OffsetTop() float64
OffsetWidth() float64
Style() *CSSStyleDeclaration
Title() string
SetTitle(string)
Blur()
Click()
Focus()
}
type SVGElement interface {
Element
// TODO
}
type GlobalEventHandlers interface{}
type Window interface {
EventTarget
Console() *Console
Document() Document
FrameElement() Element
Location() *Location
Name() string
SetName(string)
InnerHeight() int
InnerWidth() int
Length() int
Opener() Window
OuterHeight() int
OuterWidth() int
ScrollX() int
ScrollY() int
Parent() Window
ScreenX() int
ScreenY() int
ScrollMaxX() int
ScrollMaxY() int
Top() Window
History() History
Navigator() Navigator
Screen() *Screen
Alert(string)
Back()
Blur()
CancelAnimationFrame(int)
ClearInterval(int)
ClearTimeout(int)
Close()
Confirm(string) bool
Focus()
Forward()
GetComputedStyle(el Element, pseudoElt string) *CSSStyleDeclaration
GetSelection() Selection
Home()
MoveBy(dx, dy int)
MoveTo(x, y int)
Open(url, name, features string) Window
OpenDialog(url, name, features string, args []interface{}) Window
PostMessage(message string, target string, transfer []interface{})
Print()
Prompt(prompt string, initial string) string
RequestAnimationFrame(callback func(time.Duration)) int
ResizeBy(dw, dh int)
ResizeTo(w, h int)
Scroll(x, y int)
ScrollBy(dx, dy int)
ScrollByLines(int)
ScrollTo(x, y int)
SetCursor(name string)
SetInterval(fn func(), delay int) int
SetTimeout(fn func(), delay int) int
Stop()
// TODO constructors
}
type window struct {
// TODO EventTarget
*js.Object
}
func (w *window) Console() *Console {
return &Console{w.Get("console")}
}
func (w *window) Document() Document {
return wrapDocument(w.Get("document"))
}
func (w *window) FrameElement() Element {
return wrapElement(w.Get("frameElement"))
}
func (w *window) Location() *Location {
o := w.Get("location")
return &Location{Object: o, URLUtils: &URLUtils{Object: o}}
}
func (w *window) Name() string {
return w.Get("name").String()
}
func (w *window) SetName(s string) {
w.Set("name", s)
}
func (w *window) InnerHeight() int {
return w.Get("innerHeight").Int()
}
func (w *window) InnerWidth() int {
return w.Get("innerWidth").Int()
}
func (w *window) Length() int {
return w.Get("length").Int()
}
func (w *window) Opener() Window {
return &window{w.Get("opener")}
}
func (w *window) OuterHeight() int {
return w.Get("outerHeight").Int()
}
func (w *window) OuterWidth() int {
return w.Get("outerWidth").Int()
}
func (w *window) ScrollX() int {
return w.Get("scrollX").Int()
}
func (w *window) ScrollY() int {
return w.Get("scrollY").Int()
}
func (w *window) Parent() Window {
return &window{w.Get("parent")}
}
func (w *window) ScreenX() int {
return w.Get("screenX").Int()
}