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https://codeberg.org/forgejo/forgejo
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Make TaskCheckBox render correctly (#11214)
* Fix checkbox rendering Signed-off-by: Andrew Thornton <art27@cantab.net> * Normalize checkbox rendering Signed-off-by: Andrew Thornton <art27@cantab.net> * set the checkboxes to readonly instead of disabled Signed-off-by: Andrew Thornton <art27@cantab.net> Co-authored-by: Lauris BH <lauris@nix.lv>
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@ -4,7 +4,11 @@
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package markdown
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import "github.com/yuin/goldmark/ast"
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import (
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"strconv"
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"github.com/yuin/goldmark/ast"
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)
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// Details is a block that contains Summary and details
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type Details struct {
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@ -70,6 +74,41 @@ func IsSummary(node ast.Node) bool {
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return ok
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}
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// TaskCheckBoxListItem is a block that repressents a list item of a markdown block with a checkbox
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type TaskCheckBoxListItem struct {
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*ast.ListItem
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IsChecked bool
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}
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// KindTaskCheckBoxListItem is the NodeKind for TaskCheckBoxListItem
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var KindTaskCheckBoxListItem = ast.NewNodeKind("TaskCheckBoxListItem")
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// Dump implements Node.Dump .
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func (n *TaskCheckBoxListItem) Dump(source []byte, level int) {
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m := map[string]string{}
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m["IsChecked"] = strconv.FormatBool(n.IsChecked)
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ast.DumpHelper(n, source, level, m, nil)
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}
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// Kind implements Node.Kind.
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func (n *TaskCheckBoxListItem) Kind() ast.NodeKind {
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return KindTaskCheckBoxListItem
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}
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// NewTaskCheckBoxListItem returns a new TaskCheckBoxListItem node.
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func NewTaskCheckBoxListItem(listItem *ast.ListItem) *TaskCheckBoxListItem {
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return &TaskCheckBoxListItem{
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ListItem: listItem,
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}
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}
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// IsTaskCheckBoxListItem returns true if the given node implements the TaskCheckBoxListItem interface,
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// otherwise false.
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func IsTaskCheckBoxListItem(node ast.Node) bool {
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_, ok := node.(*TaskCheckBoxListItem)
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return ok
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}
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// Icon is an inline for a fomantic icon
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type Icon struct {
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ast.BaseInline
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@ -10,7 +10,6 @@ import (
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"regexp"
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"strings"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/markup"
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"code.gitea.io/gitea/modules/markup/common"
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"code.gitea.io/gitea/modules/setting"
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@ -129,6 +128,21 @@ func (g *ASTTransformer) Transform(node *ast.Document, reader text.Reader, pc pa
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if v.HasChildren() && v.FirstChild().HasChildren() && v.FirstChild().FirstChild().HasChildren() {
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if _, ok := v.FirstChild().FirstChild().FirstChild().(*east.TaskCheckBox); ok {
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v.SetAttributeString("class", []byte("task-list"))
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children := make([]ast.Node, 0, v.ChildCount())
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child := v.FirstChild()
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for child != nil {
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children = append(children, child)
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child = child.NextSibling()
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}
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v.RemoveChildren(v)
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for _, child := range children {
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listItem := child.(*ast.ListItem)
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newChild := NewTaskCheckBoxListItem(listItem)
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taskCheckBox := child.FirstChild().FirstChild().(*east.TaskCheckBox)
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newChild.IsChecked = taskCheckBox.IsChecked
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v.AppendChild(v, newChild)
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}
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}
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}
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}
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@ -221,11 +235,11 @@ func (r *HTMLRenderer) RegisterFuncs(reg renderer.NodeRendererFuncRegisterer) {
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reg.Register(KindDetails, r.renderDetails)
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reg.Register(KindSummary, r.renderSummary)
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reg.Register(KindIcon, r.renderIcon)
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reg.Register(KindTaskCheckBoxListItem, r.renderTaskCheckBoxListItem)
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reg.Register(east.KindTaskCheckBox, r.renderTaskCheckBox)
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}
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func (r *HTMLRenderer) renderDocument(w util.BufWriter, source []byte, node ast.Node, entering bool) (ast.WalkStatus, error) {
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log.Info("renderDocument %v", node)
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n := node.(*ast.Document)
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if val, has := n.AttributeString("lang"); has {
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@ -311,24 +325,42 @@ func (r *HTMLRenderer) renderIcon(w util.BufWriter, source []byte, node ast.Node
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return ast.WalkContinue, nil
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}
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func (r *HTMLRenderer) renderTaskCheckBox(w util.BufWriter, source []byte, node ast.Node, entering bool) (ast.WalkStatus, error) {
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if !entering {
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return ast.WalkContinue, nil
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}
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n := node.(*east.TaskCheckBox)
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end := ">"
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if r.XHTML {
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end = " />"
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}
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var err error
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if n.IsChecked {
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_, err = w.WriteString(`<span class="ui fitted disabled checkbox"><input type="checkbox" disabled="disabled"` + end + `<label` + end + `</span>`)
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func (r *HTMLRenderer) renderTaskCheckBoxListItem(w util.BufWriter, source []byte, node ast.Node, entering bool) (ast.WalkStatus, error) {
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n := node.(*TaskCheckBoxListItem)
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if entering {
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n.Dump(source, 0)
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if n.Attributes() != nil {
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_, _ = w.WriteString("<li")
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html.RenderAttributes(w, n, html.ListItemAttributeFilter)
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_ = w.WriteByte('>')
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} else {
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_, _ = w.WriteString("<li>")
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}
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end := ">"
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if r.XHTML {
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end = " />"
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}
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var err error
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if n.IsChecked {
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_, err = w.WriteString(`<span class="ui checked checkbox"><input type="checkbox" checked="" readonly="readonly"` + end + `<label>`)
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} else {
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_, err = w.WriteString(`<span class="ui checkbox"><input type="checkbox" readonly="readonly"` + end + `<label>`)
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}
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if err != nil {
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return ast.WalkStop, err
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}
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fc := n.FirstChild()
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if fc != nil {
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if _, ok := fc.(*ast.TextBlock); !ok {
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_ = w.WriteByte('\n')
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}
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}
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} else {
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_, err = w.WriteString(`<span class="ui checked fitted disabled checkbox"><input type="checkbox" checked="" disabled="disabled"` + end + `<label` + end + `</span>`)
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}
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if err != nil {
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return ast.WalkStop, err
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_, _ = w.WriteString("</label></span></li>\n")
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}
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return ast.WalkContinue, nil
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}
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func (r *HTMLRenderer) renderTaskCheckBox(w util.BufWriter, source []byte, node ast.Node, entering bool) (ast.WalkStatus, error) {
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return ast.WalkContinue, nil
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}
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@ -42,7 +42,7 @@ func ReplaceSanitizer() {
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// Checkboxes
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sanitizer.policy.AllowAttrs("type").Matching(regexp.MustCompile(`^checkbox$`)).OnElements("input")
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sanitizer.policy.AllowAttrs("checked", "disabled").OnElements("input")
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sanitizer.policy.AllowAttrs("checked", "disabled", "readonly").OnElements("input")
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// Custom URL-Schemes
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sanitizer.policy.AllowURLSchemes(setting.Markdown.CustomURLSchemes...)
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@ -57,7 +57,11 @@ func ReplaceSanitizer() {
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sanitizer.policy.AllowAttrs("class").Matching(regexp.MustCompile(`task-list`)).OnElements("ul")
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// Allow icons
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sanitizer.policy.AllowAttrs("class").Matching(regexp.MustCompile(`^icon(\s+[\p{L}\p{N}_-]+)+$`)).OnElements("i", "span")
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sanitizer.policy.AllowAttrs("class").Matching(regexp.MustCompile(`^icon(\s+[\p{L}\p{N}_-]+)+$`)).OnElements("i")
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sanitizer.policy.AllowAttrs("class").Matching(regexp.MustCompile(`^((icon(\s+[\p{L}\p{N}_-]+)+)|(ui checkbox)|(ui checked checkbox))$`)).OnElements("span")
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// Allow unlabelled labels
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sanitizer.policy.AllowNoAttrs().OnElements("label")
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// Allow generally safe attributes
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generalSafeAttrs := []string{"abbr", "accept", "accept-charset",
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