mirror of
https://github.com/MontFerret/ferret.git
synced 2024-12-16 11:37:36 +02:00
1073 lines
22 KiB
Go
1073 lines
22 KiB
Go
package dynamic
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import (
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"context"
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"encoding/json"
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"fmt"
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"hash/fnv"
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"strconv"
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"strings"
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"sync"
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"time"
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"github.com/MontFerret/ferret/pkg/html/common"
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"github.com/MontFerret/ferret/pkg/html/dynamic/eval"
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"github.com/MontFerret/ferret/pkg/html/dynamic/events"
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"github.com/MontFerret/ferret/pkg/runtime/core"
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"github.com/MontFerret/ferret/pkg/runtime/values"
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"github.com/mafredri/cdp"
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"github.com/mafredri/cdp/protocol/dom"
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"github.com/mafredri/cdp/protocol/input"
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"github.com/mafredri/cdp/protocol/runtime"
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"github.com/rs/zerolog"
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)
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const DefaultTimeout = time.Second * 30
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var emptyNodeID = dom.NodeID(0)
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var emptyBackendID = dom.BackendNodeID(0)
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var emptyObjectID = ""
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type (
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HTMLElementIdentity struct {
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nodeID dom.NodeID
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backendID dom.BackendNodeID
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objectID runtime.RemoteObjectID
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}
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HTMLElement struct {
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mu sync.Mutex
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logger *zerolog.Logger
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client *cdp.Client
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events *events.EventBroker
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connected values.Boolean
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id *HTMLElementIdentity
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nodeType values.Int
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nodeName values.String
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innerHTML values.String
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innerText *common.LazyValue
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value core.Value
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rawAttrs []string
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attributes *common.LazyValue
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children []*HTMLElementIdentity
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loadedChildren *common.LazyValue
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}
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)
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func LoadElement(
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ctx context.Context,
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logger *zerolog.Logger,
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client *cdp.Client,
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broker *events.EventBroker,
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nodeID dom.NodeID,
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backendID dom.BackendNodeID,
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) (*HTMLElement, error) {
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if client == nil {
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return nil, core.Error(core.ErrMissedArgument, "client")
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}
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// getting a remote object that represents the current DOM Node
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var args *dom.ResolveNodeArgs
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if backendID > 0 {
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args = dom.NewResolveNodeArgs().SetBackendNodeID(backendID)
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} else {
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args = dom.NewResolveNodeArgs().SetNodeID(nodeID)
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}
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obj, err := client.DOM.ResolveNode(ctx, args)
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if err != nil {
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return nil, err
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}
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if obj.Object.ObjectID == nil {
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return nil, core.Error(core.ErrNotFound, fmt.Sprintf("element %d", nodeID))
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}
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objectID := *obj.Object.ObjectID
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node, err := client.DOM.DescribeNode(
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ctx,
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dom.
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NewDescribeNodeArgs().
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SetObjectID(objectID).
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SetDepth(1),
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)
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if err != nil {
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return nil, core.Error(err, strconv.Itoa(int(nodeID)))
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}
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id := new(HTMLElementIdentity)
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id.nodeID = nodeID
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id.objectID = objectID
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if backendID > 0 {
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id.backendID = backendID
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} else {
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id.backendID = node.Node.BackendNodeID
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}
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innerHTML, err := loadInnerHTML(ctx, client, id)
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if err != nil {
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return nil, core.Error(err, strconv.Itoa(int(nodeID)))
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}
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var val string
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if node.Node.Value != nil {
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val = *node.Node.Value
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}
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return NewHTMLElement(
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logger,
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client,
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broker,
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id,
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node.Node.NodeType,
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node.Node.NodeName,
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node.Node.Attributes,
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val,
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innerHTML,
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createChildrenArray(node.Node.Children),
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), nil
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}
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func NewHTMLElement(
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logger *zerolog.Logger,
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client *cdp.Client,
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broker *events.EventBroker,
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id *HTMLElementIdentity,
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nodeType int,
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nodeName string,
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attributes []string,
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value string,
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innerHTML values.String,
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children []*HTMLElementIdentity,
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) *HTMLElement {
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el := new(HTMLElement)
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el.logger = logger
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el.client = client
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el.events = broker
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el.connected = values.True
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el.id = id
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el.nodeType = values.NewInt(nodeType)
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el.nodeName = values.NewString(nodeName)
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el.innerHTML = innerHTML
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el.innerText = common.NewLazyValue(el.loadInnerText)
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el.rawAttrs = attributes
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el.attributes = common.NewLazyValue(el.loadAttrs)
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el.value = values.EmptyString
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el.loadedChildren = common.NewLazyValue(el.loadChildren)
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el.value = values.NewString(value)
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el.children = children
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broker.AddEventListener(events.EventReload, el.handlePageReload)
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broker.AddEventListener(events.EventAttrModified, el.handleAttrModified)
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broker.AddEventListener(events.EventAttrRemoved, el.handleAttrRemoved)
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broker.AddEventListener(events.EventChildNodeCountUpdated, el.handleChildrenCountChanged)
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broker.AddEventListener(events.EventChildNodeInserted, el.handleChildInserted)
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broker.AddEventListener(events.EventChildNodeRemoved, el.handleChildRemoved)
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return el
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}
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func (el *HTMLElement) Close() error {
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el.mu.Lock()
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defer el.mu.Unlock()
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// already closed
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if !el.connected {
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return nil
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}
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el.connected = values.False
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el.events.RemoveEventListener(events.EventReload, el.handlePageReload)
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el.events.RemoveEventListener(events.EventAttrModified, el.handleAttrModified)
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el.events.RemoveEventListener(events.EventAttrRemoved, el.handleAttrRemoved)
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el.events.RemoveEventListener(events.EventChildNodeCountUpdated, el.handleChildrenCountChanged)
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el.events.RemoveEventListener(events.EventChildNodeInserted, el.handleChildInserted)
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el.events.RemoveEventListener(events.EventChildNodeRemoved, el.handleChildRemoved)
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return nil
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}
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func (el *HTMLElement) Type() core.Type {
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return core.HTMLElementType
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}
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func (el *HTMLElement) MarshalJSON() ([]byte, error) {
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val, err := el.innerText.Read()
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if err != nil {
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return nil, err
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}
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return json.Marshal(val.String())
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}
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func (el *HTMLElement) String() string {
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return el.InnerHTML().String()
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}
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func (el *HTMLElement) Compare(other core.Value) int {
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switch other.Type() {
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case core.HTMLDocumentType:
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other := other.(*HTMLElement)
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id := int(el.id.backendID)
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otherID := int(other.id.backendID)
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if id == otherID {
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return 0
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}
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if id > otherID {
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return 1
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}
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return -1
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default:
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if other.Type() > core.HTMLElementType {
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return -1
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}
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return 1
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}
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}
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func (el *HTMLElement) Unwrap() interface{} {
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return el
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}
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func (el *HTMLElement) Hash() uint64 {
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el.mu.Lock()
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defer el.mu.Unlock()
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h := fnv.New64a()
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h.Write([]byte(el.Type().String()))
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h.Write([]byte(":"))
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h.Write([]byte(el.innerHTML))
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return h.Sum64()
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}
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func (el *HTMLElement) Value() core.Value {
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if !el.IsConnected() {
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return el.value
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}
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ctx, cancel := contextWithTimeout()
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defer cancel()
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val, err := eval.Property(ctx, el.client, el.id.objectID, "value")
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if err != nil {
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el.logError(err).Msg("failed to get node value")
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return el.value
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}
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el.value = val
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return val
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}
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func (el *HTMLElement) Copy() core.Value {
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return values.None
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}
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func (el *HTMLElement) Length() values.Int {
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return values.NewInt(len(el.children))
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}
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func (el *HTMLElement) NodeType() values.Int {
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return el.nodeType
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}
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func (el *HTMLElement) NodeName() values.String {
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return el.nodeName
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}
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func (el *HTMLElement) GetAttributes() core.Value {
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val, err := el.attributes.Read()
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if err != nil {
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return values.None
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}
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// returning shallow copy
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return val.Copy()
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}
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func (el *HTMLElement) GetAttribute(name values.String) core.Value {
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attrs, err := el.attributes.Read()
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if err != nil {
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return values.None
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}
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val, found := attrs.(*values.Object).Get(name)
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if !found {
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return values.None
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}
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return val
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}
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func (el *HTMLElement) GetChildNodes() core.Value {
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val, err := el.loadedChildren.Read()
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if err != nil {
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return values.NewArray(0)
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}
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return val
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}
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func (el *HTMLElement) GetChildNode(idx values.Int) core.Value {
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// TODO: Add lazy loading
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val, err := el.loadedChildren.Read()
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if err != nil {
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return values.None
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}
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return val.(*values.Array).Get(idx)
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}
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func (el *HTMLElement) QuerySelector(selector values.String) core.Value {
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if !el.IsConnected() {
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return values.None
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}
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ctx, cancel := contextWithTimeout()
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defer cancel()
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// TODO: Can we use RemoteObjectID or BackendID instead of NodeId?
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selectorArgs := dom.NewQuerySelectorArgs(el.id.nodeID, selector.String())
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found, err := el.client.DOM.QuerySelector(ctx, selectorArgs)
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if err != nil {
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el.logError(err).
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Str("selector", selector.String()).
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Msg("failed to retrieve a node by selector")
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return values.None
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}
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if found.NodeID == emptyNodeID {
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el.logError(err).
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Str("selector", selector.String()).
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Msg("failed to find a node by selector. returned 0 NodeID")
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return values.None
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}
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res, err := LoadElement(ctx, el.logger, el.client, el.events, found.NodeID, emptyBackendID)
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if err != nil {
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el.logError(err).
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Str("selector", selector.String()).
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Msg("failed to load a child node by selector")
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return values.None
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}
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return res
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}
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func (el *HTMLElement) QuerySelectorAll(selector values.String) core.Value {
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if !el.IsConnected() {
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return values.NewArray(0)
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}
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ctx, cancel := contextWithTimeout()
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defer cancel()
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// TODO: Can we use RemoteObjectID or BackendID instead of NodeId?
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selectorArgs := dom.NewQuerySelectorAllArgs(el.id.nodeID, selector.String())
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res, err := el.client.DOM.QuerySelectorAll(ctx, selectorArgs)
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if err != nil {
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el.logError(err).
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Str("selector", selector.String()).
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Msg("failed to retrieve nodes by selector")
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return values.None
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}
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arr := values.NewArray(len(res.NodeIDs))
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for _, id := range res.NodeIDs {
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if id == emptyNodeID {
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el.logError(err).
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Str("selector", selector.String()).
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Msg("failed to find a node by selector. returned 0 NodeID")
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continue
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}
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childEl, err := LoadElement(ctx, el.logger, el.client, el.events, id, emptyBackendID)
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if err != nil {
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el.logError(err).
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Str("selector", selector.String()).
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Msg("failed to load nodes by selector")
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// close elements that are already loaded, but won't be used because of the error
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if arr.Length() > 0 {
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arr.ForEach(func(e core.Value, _ int) bool {
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e.(*HTMLElement).Close()
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return true
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})
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}
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return values.None
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}
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arr.Push(childEl)
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}
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return arr
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}
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func (el *HTMLElement) WaitForClass(class values.String, timeout values.Int) error {
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task := events.NewWaitTask(
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func() (core.Value, error) {
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current := el.GetAttribute("class")
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if current.Type() != core.StringType {
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return values.None, nil
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}
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str := current.(values.String)
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classStr := string(class)
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classes := strings.Split(string(str), " ")
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for _, c := range classes {
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if c == classStr {
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return values.True, nil
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}
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}
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return values.None, nil
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},
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time.Millisecond*time.Duration(timeout),
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events.DefaultPolling,
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)
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_, err := task.Run()
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return err
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}
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func (el *HTMLElement) InnerText() values.String {
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val, err := el.innerText.Read()
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if err != nil {
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return values.EmptyString
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}
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return val.(values.String)
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}
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func (el *HTMLElement) InnerTextBySelector(selector values.String) values.String {
|
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if !el.IsConnected() {
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return values.EmptyString
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}
|
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|
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ctx, cancel := contextWithTimeout()
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defer cancel()
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|
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// TODO: Can we use RemoteObjectID or BackendID instead of NodeId?
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found, err := el.client.DOM.QuerySelector(ctx, dom.NewQuerySelectorArgs(el.id.nodeID, selector.String()))
|
|
|
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if err != nil {
|
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el.logError(err).
|
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Str("selector", selector.String()).
|
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Msg("failed to retrieve a node by selector")
|
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|
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return values.EmptyString
|
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}
|
|
|
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if found.NodeID == emptyNodeID {
|
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el.logError(err).
|
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Str("selector", selector.String()).
|
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Msg("failed to find a node by selector. returned 0 NodeID")
|
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|
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return values.EmptyString
|
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}
|
|
|
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childNodeID := found.NodeID
|
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|
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obj, err := el.client.DOM.ResolveNode(ctx, dom.NewResolveNodeArgs().SetNodeID(childNodeID))
|
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|
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if err != nil {
|
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el.logError(err).
|
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Int("childNodeID", int(childNodeID)).
|
|
Str("selector", selector.String()).
|
|
Msg("failed to resolve remote object for child element")
|
|
|
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return values.EmptyString
|
|
}
|
|
|
|
if obj.Object.ObjectID == nil {
|
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el.logError(err).
|
|
Int("childNodeID", int(childNodeID)).
|
|
Str("selector", selector.String()).
|
|
Msg("failed to resolve remote object for child element")
|
|
|
|
return values.EmptyString
|
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}
|
|
|
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objID := *obj.Object.ObjectID
|
|
|
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text, err := eval.Property(ctx, el.client, objID, "innerText")
|
|
|
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if err != nil {
|
|
el.logError(err).
|
|
Str("childObjectID", string(objID)).
|
|
Str("selector", selector.String()).
|
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Msg("failed to load inner text for found child element")
|
|
|
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return values.EmptyString
|
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}
|
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|
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return values.NewString(text.String())
|
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}
|
|
|
|
func (el *HTMLElement) InnerTextBySelectorAll(selector values.String) *values.Array {
|
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ctx, cancel := contextWithTimeout()
|
|
defer cancel()
|
|
|
|
// TODO: Can we use RemoteObjectID or BackendID instead of NodeId?
|
|
res, err := el.client.DOM.QuerySelectorAll(ctx, dom.NewQuerySelectorAllArgs(el.id.nodeID, selector.String()))
|
|
|
|
if err != nil {
|
|
el.logError(err).
|
|
Str("selector", selector.String()).
|
|
Msg("failed to retrieve nodes by selector")
|
|
|
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return values.NewArray(0)
|
|
}
|
|
|
|
arr := values.NewArray(len(res.NodeIDs))
|
|
|
|
for idx, id := range res.NodeIDs {
|
|
if id == emptyNodeID {
|
|
el.logError(err).
|
|
Str("selector", selector.String()).
|
|
Msg("failed to find a node by selector. returned 0 NodeID")
|
|
|
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continue
|
|
}
|
|
|
|
obj, err := el.client.DOM.ResolveNode(ctx, dom.NewResolveNodeArgs().SetNodeID(id))
|
|
|
|
if err != nil {
|
|
el.logError(err).
|
|
Int("index", idx).
|
|
Int("childNodeID", int(id)).
|
|
Str("selector", selector.String()).
|
|
Msg("failed to resolve remote object for child element")
|
|
|
|
continue
|
|
}
|
|
|
|
if obj.Object.ObjectID == nil {
|
|
continue
|
|
}
|
|
|
|
objID := *obj.Object.ObjectID
|
|
|
|
text, err := eval.Property(ctx, el.client, objID, "innerText")
|
|
|
|
if err != nil {
|
|
el.logError(err).
|
|
Str("childObjectID", string(objID)).
|
|
Str("selector", selector.String()).
|
|
Msg("failed to load inner text for found child element")
|
|
|
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continue
|
|
}
|
|
|
|
arr.Push(text)
|
|
}
|
|
|
|
return arr
|
|
}
|
|
|
|
func (el *HTMLElement) InnerHTML() values.String {
|
|
el.mu.Lock()
|
|
defer el.mu.Unlock()
|
|
|
|
return el.innerHTML
|
|
}
|
|
|
|
func (el *HTMLElement) InnerHTMLBySelector(selector values.String) values.String {
|
|
if !el.IsConnected() {
|
|
return values.EmptyString
|
|
}
|
|
|
|
ctx, cancel := contextWithTimeout()
|
|
defer cancel()
|
|
|
|
// TODO: Can we use RemoteObjectID or BackendID instead of NodeId?
|
|
found, err := el.client.DOM.QuerySelector(ctx, dom.NewQuerySelectorArgs(el.id.nodeID, selector.String()))
|
|
|
|
if err != nil {
|
|
el.logError(err).
|
|
Str("selector", selector.String()).
|
|
Msg("failed to retrieve nodes by selector")
|
|
|
|
return values.EmptyString
|
|
}
|
|
|
|
text, err := loadInnerHTML(ctx, el.client, &HTMLElementIdentity{
|
|
nodeID: found.NodeID,
|
|
})
|
|
|
|
if err != nil {
|
|
el.logError(err).
|
|
Str("selector", selector.String()).
|
|
Msg("failed to load inner HTML for found child element")
|
|
|
|
return values.EmptyString
|
|
}
|
|
|
|
return text
|
|
}
|
|
|
|
func (el *HTMLElement) InnerHTMLBySelectorAll(selector values.String) *values.Array {
|
|
ctx, cancel := contextWithTimeout()
|
|
defer cancel()
|
|
|
|
// TODO: Can we use RemoteObjectID or BackendID instead of NodeId?
|
|
selectorArgs := dom.NewQuerySelectorAllArgs(el.id.nodeID, selector.String())
|
|
res, err := el.client.DOM.QuerySelectorAll(ctx, selectorArgs)
|
|
|
|
if err != nil {
|
|
el.logError(err).
|
|
Str("selector", selector.String()).
|
|
Msg("failed to retrieve nodes by selector")
|
|
|
|
return values.NewArray(0)
|
|
}
|
|
|
|
arr := values.NewArray(len(res.NodeIDs))
|
|
|
|
for _, id := range res.NodeIDs {
|
|
text, err := loadInnerHTML(ctx, el.client, &HTMLElementIdentity{
|
|
nodeID: id,
|
|
})
|
|
|
|
if err != nil {
|
|
el.logError(err).
|
|
Str("selector", selector.String()).
|
|
Msg("failed to load inner HTML for found child element")
|
|
|
|
// return what we have
|
|
return arr
|
|
}
|
|
|
|
arr.Push(text)
|
|
}
|
|
|
|
return arr
|
|
}
|
|
|
|
func (el *HTMLElement) CountBySelector(selector values.String) values.Int {
|
|
if !el.IsConnected() {
|
|
return values.ZeroInt
|
|
}
|
|
|
|
ctx, cancel := contextWithTimeout()
|
|
defer cancel()
|
|
|
|
// TODO: Can we use RemoteObjectID or BackendID instead of NodeId?
|
|
selectorArgs := dom.NewQuerySelectorAllArgs(el.id.nodeID, selector.String())
|
|
res, err := el.client.DOM.QuerySelectorAll(ctx, selectorArgs)
|
|
|
|
if err != nil {
|
|
el.logError(err).
|
|
Str("selector", selector.String()).
|
|
Msg("failed to retrieve nodes by selector")
|
|
|
|
return values.ZeroInt
|
|
}
|
|
|
|
return values.NewInt(len(res.NodeIDs))
|
|
}
|
|
|
|
func (el *HTMLElement) Click() (values.Boolean, error) {
|
|
ctx, cancel := contextWithTimeout()
|
|
|
|
defer cancel()
|
|
|
|
return events.DispatchEvent(ctx, el.client, el.id.objectID, "click")
|
|
}
|
|
|
|
func (el *HTMLElement) Input(value core.Value, delay values.Int) error {
|
|
ctx, cancel := contextWithTimeout()
|
|
defer cancel()
|
|
|
|
if err := el.client.DOM.Focus(ctx, dom.NewFocusArgs().SetObjectID(el.id.objectID)); err != nil {
|
|
el.logError(err).Msg("failed to focus")
|
|
|
|
return err
|
|
}
|
|
|
|
delayMs := time.Duration(delay)
|
|
|
|
time.Sleep(delayMs * time.Millisecond)
|
|
|
|
valStr := value.String()
|
|
|
|
for _, ch := range valStr {
|
|
for _, ev := range []string{"keyDown", "keyUp"} {
|
|
ke := input.NewDispatchKeyEventArgs(ev).SetText(string(ch))
|
|
|
|
if err := el.client.Input.DispatchKeyEvent(ctx, ke); err != nil {
|
|
el.logError(err).Str("value", value.String()).Msg("failed to input a value")
|
|
|
|
return err
|
|
}
|
|
|
|
time.Sleep(delayMs * time.Millisecond)
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (el *HTMLElement) IsConnected() values.Boolean {
|
|
el.mu.Lock()
|
|
defer el.mu.Unlock()
|
|
|
|
return el.connected
|
|
}
|
|
|
|
func (el *HTMLElement) loadInnerText() (core.Value, error) {
|
|
if el.IsConnected() {
|
|
ctx, cancel := contextWithTimeout()
|
|
defer cancel()
|
|
|
|
text, err := eval.Property(ctx, el.client, el.id.objectID, "innerText")
|
|
|
|
if err == nil {
|
|
return text, nil
|
|
}
|
|
|
|
el.logError(err).Msg("failed to read 'innerText' property of remote object")
|
|
|
|
// and just parse innerHTML
|
|
}
|
|
|
|
h := el.InnerHTML()
|
|
|
|
if h == values.EmptyString {
|
|
return h, nil
|
|
}
|
|
|
|
parsed, err := parseInnerText(h.String())
|
|
|
|
if err != nil {
|
|
el.logError(err).Msg("failed to parse inner html")
|
|
|
|
return values.EmptyString, err
|
|
}
|
|
|
|
return parsed, nil
|
|
}
|
|
|
|
func (el *HTMLElement) loadAttrs() (core.Value, error) {
|
|
return parseAttrs(el.rawAttrs), nil
|
|
}
|
|
|
|
func (el *HTMLElement) loadChildren() (core.Value, error) {
|
|
if !el.IsConnected() {
|
|
return values.NewArray(0), nil
|
|
}
|
|
|
|
ctx, cancel := contextWithTimeout()
|
|
defer cancel()
|
|
|
|
loaded := values.NewArray(len(el.children))
|
|
|
|
for _, childID := range el.children {
|
|
child, err := LoadElement(
|
|
ctx,
|
|
el.logger,
|
|
el.client,
|
|
el.events,
|
|
childID.nodeID,
|
|
childID.backendID,
|
|
)
|
|
|
|
if err != nil {
|
|
el.logError(err).Msg("failed to load child nodes")
|
|
|
|
continue
|
|
}
|
|
|
|
loaded.Push(child)
|
|
}
|
|
|
|
return loaded, nil
|
|
}
|
|
|
|
func (el *HTMLElement) handlePageReload(_ interface{}) {
|
|
el.Close()
|
|
}
|
|
|
|
func (el *HTMLElement) handleAttrModified(message interface{}) {
|
|
reply, ok := message.(*dom.AttributeModifiedReply)
|
|
|
|
// well....
|
|
if !ok {
|
|
return
|
|
}
|
|
|
|
// it's not for this element
|
|
if reply.NodeID != el.id.nodeID {
|
|
return
|
|
}
|
|
|
|
el.attributes.Write(func(v core.Value, err error) {
|
|
if err != nil {
|
|
el.logError(err).Msg("failed to update node")
|
|
|
|
return
|
|
}
|
|
|
|
attrs, ok := v.(*values.Object)
|
|
|
|
if !ok {
|
|
return
|
|
}
|
|
|
|
attrs.Set(values.NewString(reply.Name), values.NewString(reply.Value))
|
|
})
|
|
}
|
|
|
|
func (el *HTMLElement) handleAttrRemoved(message interface{}) {
|
|
reply, ok := message.(*dom.AttributeRemovedReply)
|
|
|
|
// well....
|
|
if !ok {
|
|
return
|
|
}
|
|
|
|
// it's not for this element
|
|
if reply.NodeID != el.id.nodeID {
|
|
return
|
|
}
|
|
|
|
// they are not event loaded
|
|
// just ignore the event
|
|
if !el.attributes.Ready() {
|
|
return
|
|
}
|
|
|
|
el.attributes.Write(func(v core.Value, err error) {
|
|
if err != nil {
|
|
el.logError(err).Msg("failed to update node")
|
|
|
|
return
|
|
}
|
|
|
|
attrs, ok := v.(*values.Object)
|
|
|
|
if !ok {
|
|
return
|
|
}
|
|
|
|
attrs.Remove(values.NewString(reply.Name))
|
|
})
|
|
}
|
|
|
|
func (el *HTMLElement) handleChildrenCountChanged(message interface{}) {
|
|
reply, ok := message.(*dom.ChildNodeCountUpdatedReply)
|
|
|
|
if !ok {
|
|
return
|
|
}
|
|
|
|
if reply.NodeID != el.id.nodeID {
|
|
return
|
|
}
|
|
|
|
ctx, cancel := contextWithTimeout()
|
|
defer cancel()
|
|
|
|
node, err := el.client.DOM.DescribeNode(
|
|
ctx,
|
|
dom.NewDescribeNodeArgs().SetObjectID(el.id.objectID),
|
|
)
|
|
|
|
if err != nil {
|
|
el.logError(err).Msg("failed to update node")
|
|
|
|
return
|
|
}
|
|
|
|
el.mu.Lock()
|
|
defer el.mu.Unlock()
|
|
|
|
el.children = createChildrenArray(node.Node.Children)
|
|
}
|
|
|
|
func (el *HTMLElement) handleChildInserted(message interface{}) {
|
|
reply, ok := message.(*dom.ChildNodeInsertedReply)
|
|
|
|
if !ok {
|
|
return
|
|
}
|
|
|
|
if reply.ParentNodeID != el.id.nodeID {
|
|
return
|
|
}
|
|
|
|
targetIDx := -1
|
|
prevID := reply.PreviousNodeID
|
|
nextID := reply.Node.NodeID
|
|
|
|
el.mu.Lock()
|
|
defer el.mu.Unlock()
|
|
|
|
for idx, id := range el.children {
|
|
if id.nodeID == prevID {
|
|
targetIDx = idx
|
|
break
|
|
}
|
|
}
|
|
|
|
if targetIDx == -1 {
|
|
return
|
|
}
|
|
|
|
nextIdentity := &HTMLElementIdentity{
|
|
nodeID: reply.Node.NodeID,
|
|
backendID: reply.Node.BackendNodeID,
|
|
}
|
|
|
|
arr := el.children
|
|
el.children = append(arr[:targetIDx], append([]*HTMLElementIdentity{nextIdentity}, arr[targetIDx:]...)...)
|
|
|
|
if !el.loadedChildren.Ready() {
|
|
return
|
|
}
|
|
|
|
el.loadedChildren.Write(func(v core.Value, err error) {
|
|
ctx, cancel := contextWithTimeout()
|
|
defer cancel()
|
|
|
|
loadedArr := v.(*values.Array)
|
|
loadedEl, err := LoadElement(ctx, el.logger, el.client, el.events, nextID, emptyBackendID)
|
|
|
|
if err != nil {
|
|
el.logError(err).Msg("failed to load an inserted node")
|
|
|
|
return
|
|
}
|
|
|
|
loadedArr.Insert(values.NewInt(targetIDx), loadedEl)
|
|
|
|
newInnerHTML, err := loadInnerHTML(ctx, el.client, el.id)
|
|
|
|
if err != nil {
|
|
el.logError(err).Msg("failed to update node")
|
|
|
|
return
|
|
}
|
|
|
|
el.innerHTML = newInnerHTML
|
|
el.innerText.Reset()
|
|
})
|
|
}
|
|
|
|
func (el *HTMLElement) handleChildRemoved(message interface{}) {
|
|
reply, ok := message.(*dom.ChildNodeRemovedReply)
|
|
|
|
if !ok {
|
|
return
|
|
}
|
|
|
|
if reply.ParentNodeID != el.id.nodeID {
|
|
return
|
|
}
|
|
|
|
targetIDx := -1
|
|
targetID := reply.NodeID
|
|
|
|
el.mu.Lock()
|
|
defer el.mu.Unlock()
|
|
|
|
for idx, id := range el.children {
|
|
if id.nodeID == targetID {
|
|
targetIDx = idx
|
|
break
|
|
}
|
|
}
|
|
|
|
if targetIDx == -1 {
|
|
return
|
|
}
|
|
|
|
arr := el.children
|
|
el.children = append(arr[:targetIDx], arr[targetIDx+1:]...)
|
|
|
|
if !el.loadedChildren.Ready() {
|
|
return
|
|
}
|
|
|
|
el.loadedChildren.Write(func(v core.Value, err error) {
|
|
if err != nil {
|
|
el.logger.Error().
|
|
Timestamp().
|
|
Err(err).
|
|
Int("nodeID", int(el.id.nodeID)).
|
|
Msg("failed to update node")
|
|
|
|
return
|
|
}
|
|
|
|
ctx, cancel := contextWithTimeout()
|
|
defer cancel()
|
|
|
|
loadedArr := v.(*values.Array)
|
|
loadedArr.RemoveAt(values.NewInt(targetIDx))
|
|
|
|
newInnerHTML, err := loadInnerHTML(ctx, el.client, el.id)
|
|
|
|
if err != nil {
|
|
el.logger.Error().
|
|
Timestamp().
|
|
Err(err).
|
|
Int("nodeID", int(el.id.nodeID)).
|
|
Msg("failed to update node")
|
|
|
|
return
|
|
}
|
|
|
|
el.innerHTML = newInnerHTML
|
|
el.innerText.Reset()
|
|
})
|
|
}
|
|
|
|
func (el *HTMLElement) logError(err error) *zerolog.Event {
|
|
return el.logger.
|
|
Error().
|
|
Timestamp().
|
|
Int("nodeID", int(el.id.nodeID)).
|
|
Int("backendID", int(el.id.backendID)).
|
|
Str("objectID", string(el.id.objectID)).
|
|
Err(err)
|
|
}
|