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Make TaskCheckBox render correctly (#11214)

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* 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>
This commit is contained in:
zeripath 2020-04-26 06:09:08 +01:00 committed by GitHub
parent f1f56da4d1
commit 9f959ac064
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
3 changed files with 97 additions and 22 deletions
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41
modules/markup/markdown/ast.go
View file

@ -4,7 +4,11 @@
package markdown
import "github.com/yuin/goldmark/ast"
import (
"strconv"
"github.com/yuin/goldmark/ast"
)
// Details is a block that contains Summary and details
type Details struct {
@ -70,6 +74,41 @@ func IsSummary(node ast.Node) bool {
return ok
}
// TaskCheckBoxListItem is a block that repressents a list item of a markdown block with a checkbox
type TaskCheckBoxListItem struct {
*ast.ListItem
IsChecked bool
}
// KindTaskCheckBoxListItem is the NodeKind for TaskCheckBoxListItem
var KindTaskCheckBoxListItem = ast.NewNodeKind("TaskCheckBoxListItem")
// Dump implements Node.Dump .
func (n *TaskCheckBoxListItem) Dump(source []byte, level int) {
m := map[string]string{}
m["IsChecked"] = strconv.FormatBool(n.IsChecked)
ast.DumpHelper(n, source, level, m, nil)
}
// Kind implements Node.Kind.
func (n *TaskCheckBoxListItem) Kind() ast.NodeKind {
return KindTaskCheckBoxListItem
}
// NewTaskCheckBoxListItem returns a new TaskCheckBoxListItem node.
func NewTaskCheckBoxListItem(listItem *ast.ListItem) *TaskCheckBoxListItem {
return &TaskCheckBoxListItem{
ListItem: listItem,
}
}
// IsTaskCheckBoxListItem returns true if the given node implements the TaskCheckBoxListItem interface,
// otherwise false.
func IsTaskCheckBoxListItem(node ast.Node) bool {
_, ok := node.(*TaskCheckBoxListItem)
return ok
}
// Icon is an inline for a fomantic icon
type Icon struct {
ast.BaseInline

70
modules/markup/markdown/goldmark.go
View file

@ -10,7 +10,6 @@ import (
"regexp"
"strings"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/markup"
"code.gitea.io/gitea/modules/markup/common"
"code.gitea.io/gitea/modules/setting"
@ -129,6 +128,21 @@ func (g *ASTTransformer) Transform(node *ast.Document, reader text.Reader, pc pa
if v.HasChildren() && v.FirstChild().HasChildren() && v.FirstChild().FirstChild().HasChildren() {
if _, ok := v.FirstChild().FirstChild().FirstChild().(*east.TaskCheckBox); ok {
v.SetAttributeString("class", []byte("task-list"))
children := make([]ast.Node, 0, v.ChildCount())
child := v.FirstChild()
for child != nil {
children = append(children, child)
child = child.NextSibling()
}
v.RemoveChildren(v)
for _, child := range children {
listItem := child.(*ast.ListItem)
newChild := NewTaskCheckBoxListItem(listItem)
taskCheckBox := child.FirstChild().FirstChild().(*east.TaskCheckBox)
newChild.IsChecked = taskCheckBox.IsChecked
v.AppendChild(v, newChild)
}
}
}
}
@ -221,11 +235,11 @@ func (r *HTMLRenderer) RegisterFuncs(reg renderer.NodeRendererFuncRegisterer) {
reg.Register(KindDetails, r.renderDetails)
reg.Register(KindSummary, r.renderSummary)
reg.Register(KindIcon, r.renderIcon)
reg.Register(KindTaskCheckBoxListItem, r.renderTaskCheckBoxListItem)
reg.Register(east.KindTaskCheckBox, r.renderTaskCheckBox)
}
func (r *HTMLRenderer) renderDocument(w util.BufWriter, source []byte, node ast.Node, entering bool) (ast.WalkStatus, error) {
log.Info("renderDocument %v", node)
n := node.(*ast.Document)
if val, has := n.AttributeString("lang"); has {
@ -311,24 +325,42 @@ func (r *HTMLRenderer) renderIcon(w util.BufWriter, source []byte, node ast.Node
return ast.WalkContinue, nil
}
func (r *HTMLRenderer) renderTaskCheckBox(w util.BufWriter, source []byte, node ast.Node, entering bool) (ast.WalkStatus, error) {
if !entering {
return ast.WalkContinue, nil
}
n := node.(*east.TaskCheckBox)
end := ">"
if r.XHTML {
end = " />"
}
var err error
if n.IsChecked {
_, err = w.WriteString(`<span class="ui fitted disabled checkbox"><input type="checkbox" disabled="disabled"` + end + `<label` + end + `</span>`)
func (r *HTMLRenderer) renderTaskCheckBoxListItem(w util.BufWriter, source []byte, node ast.Node, entering bool) (ast.WalkStatus, error) {
n := node.(*TaskCheckBoxListItem)
if entering {
n.Dump(source, 0)
if n.Attributes() != nil {
_, _ = w.WriteString("<li")
html.RenderAttributes(w, n, html.ListItemAttributeFilter)
_ = w.WriteByte('>')
} else {
_, _ = w.WriteString("<li>")
}
end := ">"
if r.XHTML {
end = " />"
}
var err error
if n.IsChecked {
_, err = w.WriteString(`<span class="ui checked checkbox"><input type="checkbox" checked="" readonly="readonly"` + end + `<label>`)
} else {
_, err = w.WriteString(`<span class="ui checkbox"><input type="checkbox" readonly="readonly"` + end + `<label>`)
}
if err != nil {
return ast.WalkStop, err
}
fc := n.FirstChild()
if fc != nil {
if _, ok := fc.(*ast.TextBlock); !ok {
_ = w.WriteByte('\n')
}
}
} else {
_, err = w.WriteString(`<span class="ui checked fitted disabled checkbox"><input type="checkbox" checked="" disabled="disabled"` + end + `<label` + end + `</span>`)
}
if err != nil {
return ast.WalkStop, err
_, _ = w.WriteString("</label></span></li>\n")
}
return ast.WalkContinue, nil
}
func (r *HTMLRenderer) renderTaskCheckBox(w util.BufWriter, source []byte, node ast.Node, entering bool) (ast.WalkStatus, error) {
return ast.WalkContinue, nil
}

8
modules/markup/sanitizer.go
View file

@ -42,7 +42,7 @@ func ReplaceSanitizer() {
// Checkboxes
sanitizer.policy.AllowAttrs("type").Matching(regexp.MustCompile(`^checkbox$`)).OnElements("input")
sanitizer.policy.AllowAttrs("checked", "disabled").OnElements("input")
sanitizer.policy.AllowAttrs("checked", "disabled", "readonly").OnElements("input")
// Custom URL-Schemes
sanitizer.policy.AllowURLSchemes(setting.Markdown.CustomURLSchemes...)
@ -57,7 +57,11 @@ func ReplaceSanitizer() {
sanitizer.policy.AllowAttrs("class").Matching(regexp.MustCompile(`task-list`)).OnElements("ul")
// Allow icons
sanitizer.policy.AllowAttrs("class").Matching(regexp.MustCompile(`^icon(\s+[\p{L}\p{N}_-]+)+$`)).OnElements("i", "span")
sanitizer.policy.AllowAttrs("class").Matching(regexp.MustCompile(`^icon(\s+[\p{L}\p{N}_-]+)+$`)).OnElements("i")
sanitizer.policy.AllowAttrs("class").Matching(regexp.MustCompile(`^((icon(\s+[\p{L}\p{N}_-]+)+)|(ui checkbox)|(ui checked checkbox))$`)).OnElements("span")
// Allow unlabelled labels
sanitizer.policy.AllowNoAttrs().OnElements("label")
// Allow generally safe attributes
generalSafeAttrs := []string{"abbr", "accept", "accept-charset",