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feat(功能强化): 支持OFD网页外链点击跳转
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xiaoqidun committed 2026-09-12 20:17:15 +08:00
1 parent 299c2cbfdc
commit 8ddc2fdeed
7 files changed
+192 -109
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assets/webui/ofdgo.css
+10
View File
@@ -663,9 +663,19 @@ button.outline-link:hover {
}
.page-surface {
position: relative;
transform-origin: 0 0;
}
.page-link {
position: absolute;
}
.page-link:hover,
.page-link:focus-visible {
background: rgba(15, 123, 104, 0.08);
}
.page-placeholder {
position: absolute;
inset: 0;
assets/webui/ofdgo.js
+23
View File
@@ -1591,6 +1591,29 @@ function mountPageSVG(index, page, openSeq = state.openSeq) {
const svg = parseSVG(page.svg, `p${openSeq}-${index}`);
svg.classList.add("ofd-svg");
surface.replaceChildren(svg);
for (const link of page.links) {
let url;
try {
url = new URL(link.uri);
} catch {
continue;
}
if (url.protocol !== "http:" && url.protocol !== "https:") {
continue;
}
const anchor = document.createElement("a");
anchor.className = "page-link";
anchor.href = url.href;
anchor.target = "_blank";
anchor.rel = "noopener noreferrer";
anchor.title = url.href;
anchor.setAttribute("aria-label", url.href);
anchor.style.left = `${link.x / page.width * 100}%`;
anchor.style.top = `${link.y / page.height * 100}%`;
anchor.style.width = `${link.width / page.width * 100}%`;
anchor.style.height = `${link.height / page.height * 100}%`;
surface.append(anchor);
}
shell.classList.add("rendered");
if (state.doc?.pages?.[index]) {
layoutPageShell(shell, state.doc.pages[index]);
internal/webui/wasm.go
+11
View File
@@ -160,6 +160,16 @@ func renderPage(args []js.Value) (any, error) {
if err != nil {
return nil, err
}
links := make([]any, len(page.Links))
for i, link := range page.Links {
links[i] = map[string]any{
"uri": link.URI,
"x": link.Box.X,
"y": link.Box.Y,
"width": link.Box.W,
"height": link.Box.H,
}
}
return successResult(map[string]any{
"index": page.Index,
"number": page.Number,
@@ -167,6 +177,7 @@ func renderPage(args []js.Value) (any, error) {
"width": page.Width,
"height": page.Height,
"svg": page.SVG,
"links": links,
}), nil
}
internal/webui/webui.go
+12 -7
View File
@@ -156,12 +156,13 @@ type PageInfo struct {
// PageSVG 页面SVG结果
type PageSVG struct {
Index int `json:"index"`
Number int `json:"number"`
ID string `json:"id"`
Width float64 `json:"width"`
Height float64 `json:"height"`
SVG string `json:"svg"`
Index int `json:"index"`
Number int `json:"number"`
ID string `json:"id"`
Width float64 `json:"width"`
Height float64 `json:"height"`
SVG string `json:"svg"`
Links []ofdgo.PageLink `json:"-"`
}
// ExportFormat 导出格式
@@ -382,7 +383,11 @@ func (s *Session) RenderPageSVG(index int) (PageSVG, error) {
if err := s.Renderer.RenderToSVG(page, &buf); err != nil {
return PageSVG{}, err
}
return PageSVG{Index: index, Number: index + 1, ID: pageRef.ID, Width: box.W, Height: box.H, SVG: buf.String()}, nil
links, err := s.Renderer.PageLinks(page)
if err != nil {
return PageSVG{}, err
}
return PageSVG{Index: index, Number: index + 1, ID: pageRef.ID, Width: box.W, Height: box.H, SVG: buf.String(), Links: links}, nil
}
// ExportPage 导出单页
ofdgo_action.go
+109
View File
@@ -16,6 +16,7 @@ package ofdgo
import (
"encoding/xml"
"net/url"
"strconv"
)
@@ -58,6 +59,12 @@ type URI struct {
Base string `xml:"Base,attr"`
}
// PageLink 页面矩形外链，Box使用页面毫米坐标
type PageLink struct {
URI string
Box Box
}
// GotoA 附件动作
type GotoA struct {
AttachID string `xml:"AttachID,attr"`
@@ -102,6 +109,12 @@ type RegionCommand struct {
EndPoint string
}
// actionSource 动作来源
type actionSource struct {
Box Box
Actions []Action
}
// gotoDest 获取文档内跳转目标
// 入参: action 跳转动作, bookmarks 书签
// 返回: *Dest 跳转目标
@@ -211,3 +224,99 @@ func actionFloatAttr(start xml.StartElement, name string) float64 {
value, _ := strconv.ParseFloat(attrValue(start, name), 64)
return value
}
// pageActionSources 获取页面动作来源
// 入参: page 页面内容, box 页面区域
// 返回: []actionSource 动作来源
func pageActionSources(page *PageContent, box Box) []actionSource {
sources := make([]actionSource, 0)
if len(page.Actions) > 0 {
sources = append(sources, actionSource{
Box: Box{W: box.W, H: box.H},
Actions: page.Actions,
})
}
for _, layer := range page.Content.Layer {
for _, object := range layer.Objects {
sources = appendGraphicActionSources(sources, object, nil)
}
}
return sources
}
// annotationActionSources 获取注释动作来源
// 入参: annotations 页面注释
// 返回: []actionSource 动作来源
func annotationActionSources(annotations []Annotation) []actionSource {
sources := make([]actionSource, 0)
for _, annotation := range annotations {
if annotation.Visible != nil && !*annotation.Visible {
continue
}
box, err := ParseBox(annotation.Appearance.Boundary)
if err != nil {
continue
}
for _, object := range annotation.Appearance.Objects {
sources = appendGraphicActionSources(sources, object, &box)
}
}
return sources
}
// appendGraphicActionSources 添加图形对象动作来源
// 入参: sources 动作来源, object 图形对象, box 指定动作区域
// 返回: []actionSource 动作来源
func appendGraphicActionSources(sources []actionSource, object GraphicObject, box *Box) []actionSource {
var boundary string
var actions []Action
var children []GraphicObject
switch object.Type {
case "TextObject":
boundary = object.TextObject.Boundary
actions = object.TextObject.Actions
case "PathObject":
boundary = object.PathObject.Boundary
actions = object.PathObject.Actions
case "ImageObject":
boundary = object.ImageObject.Boundary
actions = object.ImageObject.Actions
case "CompositeGraphicUnit", "CompositeObject":
boundary = object.CompositeGraphicUnit.Boundary
actions = object.CompositeGraphicUnit.Actions
children = object.CompositeGraphicUnit.Objects
}
if len(actions) > 0 {
sourceBox := box
if sourceBox == nil && boundary != "" {
if value, err := ParseBox(boundary); err == nil {
sourceBox = &value
}
}
if sourceBox != nil {
sources = append(sources, actionSource{Box: *sourceBox, Actions: actions})
}
}
for _, child := range children {
sources = appendGraphicActionSources(sources, child, box)
}
return sources
}
// resolveActionURI 解析URI动作地址
// 入参: action URI动作
// 返回: string URI地址
func resolveActionURI(action URI) string {
if action.Base == "" {
return action.URI
}
base, err := url.Parse(action.Base)
if err != nil {
return action.URI
}
target, err := url.Parse(action.URI)
if err != nil {
return action.URI
}
return base.ResolveReference(target).String()
}
ofdgo_renderer.go
+26
View File
@@ -164,6 +164,32 @@ func (r *Renderer) renderPageToContext(ctx *canvas.Context, page *PageContent, d
return nil
}
// PageLinks 获取页面及可见注释的矩形外链，不包含自定义Region
// 入参: page 页面内容
// 返回: []PageLink 页面外链, error 错误信息
func (r *Renderer) PageLinks(page *PageContent) ([]PageLink, error) {
box, err := r.GetPageBox(page)
if err != nil {
return nil, err
}
sources := pageActionSources(page, box)
if r.RenderAnnotations {
sources = append(sources, annotationActionSources(r.Reader.Annots[page.ID])...)
}
var links []PageLink
for _, source := range sources {
if source.Box.W <= 0 || source.Box.H <= 0 {
continue
}
for _, action := range source.Actions {
if action.Event == "CLICK" && action.URI != nil && action.URI.URI != "" && action.Region == nil {
links = append(links, PageLink{URI: resolveActionURI(*action.URI), Box: source.Box})
}
}
}
return links, nil
}
// RenderPageByIndex 按索引渲染页面
// 入参: index 页面索引
// 返回: *canvas.Canvas 画布实例, error 错误信息
ofdgo_renderer_pdf.go
+1 -102
View File
@@ -16,7 +16,6 @@ package ofdgo
import (
"fmt"
"net/url"
"github.com/tdewolff/canvas"
"github.com/tdewolff/canvas/renderers/pdf"
@@ -55,12 +54,6 @@ type pdfOutline struct {
Y float64
}
// pdfActionSource PDF动作来源
type pdfActionSource struct {
Box Box
Actions []Action
}
// newPDFNavigation 创建PDF导航信息
// 入参: renderer 渲染器, doc 文档结构, pages 页面数据
// 返回: *pdfNavigation PDF导航信息
@@ -81,7 +74,7 @@ func newPDFNavigation(renderer *Renderer, doc *Document, pages []pdfPage) *pdfNa
}
}
for i, page := range pages {
sources := pageActionSources(page)
sources := pageActionSources(page.Content, page.Box)
if renderer.RenderAnnotations {
sources = append(sources, annotationActionSources(renderer.Reader.Annots[page.Content.ID])...)
}
@@ -159,82 +152,6 @@ func (n *pdfNavigation) apply(renderer *pdf.PDF, page int) {
}
}
// pageActionSources 获取页面动作来源
// 入参: page 页面数据
// 返回: []pdfActionSource 动作来源
func pageActionSources(page pdfPage) []pdfActionSource {
sources := make([]pdfActionSource, 0)
if len(page.Content.Actions) > 0 {
sources = append(sources, pdfActionSource{
Box: Box{W: page.Box.W, H: page.Box.H},
Actions: page.Content.Actions,
})
}
for _, layer := range page.Content.Content.Layer {
for _, object := range layer.Objects {
sources = appendGraphicActionSources(sources, object, nil)
}
}
return sources
}
// annotationActionSources 获取注释动作来源
// 入参: annotations 页面注释
// 返回: []pdfActionSource 动作来源
func annotationActionSources(annotations []Annotation) []pdfActionSource {
sources := make([]pdfActionSource, 0)
for _, annotation := range annotations {
if annotation.Visible != nil && !*annotation.Visible {
continue
}
box, err := ParseBox(annotation.Appearance.Boundary)
if err != nil {
continue
}
for _, object := range annotation.Appearance.Objects {
sources = appendGraphicActionSources(sources, object, &box)
}
}
return sources
}
// appendGraphicActionSources 添加图形对象动作来源
// 入参: sources 动作来源, object 图形对象, box 指定动作区域
// 返回: []pdfActionSource 动作来源
func appendGraphicActionSources(sources []pdfActionSource, object GraphicObject, box *Box) []pdfActionSource {
var boundary string
var actions []Action
var children []GraphicObject
switch object.Type {
case "TextObject":
boundary = object.TextObject.Boundary
actions = object.TextObject.Actions
case "PathObject":
boundary = object.PathObject.Boundary
actions = object.PathObject.Actions
case "ImageObject":
boundary = object.ImageObject.Boundary
actions = object.ImageObject.Actions
case "CompositeGraphicUnit", "CompositeObject":
boundary = object.CompositeGraphicUnit.Boundary
actions = object.CompositeGraphicUnit.Actions
children = object.CompositeGraphicUnit.Objects
}
sourceBox := box
if sourceBox == nil && boundary != "" {
if value, err := ParseBox(boundary); err == nil {
sourceBox = &value
}
}
if sourceBox != nil && len(actions) > 0 {
sources = append(sources, pdfActionSource{Box: *sourceBox, Actions: actions})
}
for _, child := range children {
sources = appendGraphicActionSources(sources, child, box)
}
return sources
}
// outlineDest 获取大纲跳转目标
// 入参: outline 大纲节点, bookmarks 书签
// 返回: *Dest 跳转目标
@@ -254,24 +171,6 @@ func outlineDest(outline OutlineElem, bookmarks map[string]Dest) *Dest {
return nil
}
// resolveActionURI 解析URI动作地址
// 入参: action URI动作
// 返回: string URI地址
func resolveActionURI(action URI) string {
if action.Base == "" {
return action.URI
}
base, err := url.Parse(action.Base)
if err != nil {
return action.URI
}
target, err := url.Parse(action.URI)
if err != nil {
return action.URI
}
return base.ResolveReference(target).String()
}
// pdfSourceRect 转换PDF动作区域
// 入参: box OFD区域, pageH 页面高度
// 返回: canvas.Rect PDF区域