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fileserver: Enable browse pagination with offset parameter (#3542)

Browse Source 
* Update browse.go

* Update browselisting.go

* Update browsetpl.go

* fix linter err

* Update modules/caddyhttp/fileserver/browse.go

Co-authored-by: Matt Holt <mholt@users.noreply.github.com>

* Update modules/caddyhttp/fileserver/browselisting.go

Co-authored-by: Matt Holt <mholt@users.noreply.github.com>

* Update browsetpl.go

change from -> offset

* Update browse.go

* Update browselisting.go

Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
This commit is contained in:
snu-ceyda 2020-07-09 14:56:15 +09:00 committed by GitHub
parent a2dae1d43f
commit 735c86658d
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 27 additions and 14 deletions
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3
modules/caddyhttp/fileserver/browse.go
View File

@ -106,6 +106,7 @@ func (fsrv *FileServer) browseApplyQueryParams(w http.ResponseWriter, r *http.Re
sortParam := r.URL.Query().Get("sort")
orderParam := r.URL.Query().Get("order")
limitParam := r.URL.Query().Get("limit")
offsetParam := r.URL.Query().Get("offset")
// first figure out what to sort by
switch sortParam {
@ -130,7 +131,7 @@ func (fsrv *FileServer) browseApplyQueryParams(w http.ResponseWriter, r *http.Re
}
// finally, apply the sorting and limiting
listing.applySortAndLimit(sortParam, orderParam, limitParam)
listing.applySortAndLimit(sortParam, orderParam, limitParam, offsetParam)
}
func (fsrv *FileServer) browseWriteJSON(listing browseListing) (*bytes.Buffer, error) {

14
modules/caddyhttp/fileserver/browselisting.go
View File

@ -101,6 +101,9 @@ type browseListing struct {
// If ≠0 then Items have been limited to that many elements.
ItemsLimitedTo int
// If ≠0 then Items starting from that many elements.
ItemOffset int
}
// Breadcrumbs returns l.Path where every element maps
@ -131,7 +134,7 @@ func (l browseListing) Breadcrumbs() []crumb {
return result
}
func (l *browseListing) applySortAndLimit(sortParam, orderParam, limitParam string) {
func (l *browseListing) applySortAndLimit(sortParam, orderParam, limitParam string, offsetParam string) {
l.Sort = sortParam
l.Order = orderParam
@ -159,8 +162,17 @@ func (l *browseListing) applySortAndLimit(sortParam, orderParam, limitParam stri
}
}
if offsetParam != "" {
offset, _ := strconv.Atoi(offsetParam)
if offset > 0 && offset <= len(l.Items) {
l.Items = l.Items[offset:]
l.ItemOffset = offset
}
}
if limitParam != "" {
limit, _ := strconv.Atoi(limitParam)
if limit > 0 && limit <= len(l.Items) {
l.Items = l.Items[:limit]
l.ItemsLimitedTo = limit

24
modules/caddyhttp/fileserver/browsetpl.go
View File

@ -296,37 +296,37 @@ footer {
<th></th>
<th>
{{- if and (eq .Sort "namedirfirst") (ne .Order "desc")}}
<a href="?sort=namedirfirst&order=desc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}" class="icon"><svg width="1em" height=".5em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#up-arrow"></use></svg></a>
<a href="?sort=namedirfirst&order=desc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}{{if ne 0 .ItemOffset}}&offset={{.ItemOffset}}{{end}}" class="icon"><svg width="1em" height=".5em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#up-arrow"></use></svg></a>
{{- else if and (eq .Sort "namedirfirst") (ne .Order "asc")}}
<a href="?sort=namedirfirst&order=asc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}" class="icon"><svg width="1em" height=".5em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#down-arrow"></use></svg></a>
<a href="?sort=namedirfirst&order=asc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}{{if ne 0 .ItemOffset}}&offset={{.ItemOffset}}{{end}}" class="icon"><svg width="1em" height=".5em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#down-arrow"></use></svg></a>
{{- else}}
<a href="?sort=namedirfirst&order=asc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}" class="icon sort"><svg class="top" width="1em" height=".5em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#up-arrow"></use></svg><svg class="bottom" width="1em" height=".5em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#down-arrow"></use></svg></a>
<a href="?sort=namedirfirst&order=asc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}{{if ne 0 .ItemOffset}}&offset={{.ItemOffset}}{{end}}" class="icon sort"><svg class="top" width="1em" height=".5em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#up-arrow"></use></svg><svg class="bottom" width="1em" height=".5em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#down-arrow"></use></svg></a>
{{- end}}
{{- if and (eq .Sort "name") (ne .Order "desc")}}
<a href="?sort=name&order=desc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}">Name <svg width="1em" height=".5em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#up-arrow"></use></svg></a>
<a href="?sort=name&order=desc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}{{if ne 0 .ItemOffset}}&offset={{.ItemOffset}}{{end}}">Name <svg width="1em" height=".5em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#up-arrow"></use></svg></a>
{{- else if and (eq .Sort "name") (ne .Order "asc")}}
<a href="?sort=name&order=asc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}">Name <svg width="1em" height=".5em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#down-arrow"></use></svg></a>
<a href="?sort=name&order=asc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}{{if ne 0 .ItemOffset}}&offset={{.ItemOffset}}{{end}}">Name <svg width="1em" height=".5em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#down-arrow"></use></svg></a>
{{- else}}
<a href="?sort=name&order=asc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}">Name</a>
<a href="?sort=name&order=asc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}{{if ne 0 .ItemOffset}}&offset={{.ItemOffset}}{{end}}">Name</a>
{{- end}}
</th>
<th>
{{- if and (eq .Sort "size") (ne .Order "desc")}}
<a href="?sort=size&order=desc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}">Size <svg width="1em" height=".5em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#up-arrow"></use></svg></a>
<a href="?sort=size&order=desc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}{{if ne 0 .ItemOffset}}&offset={{.ItemOffset}}{{end}}">Size <svg width="1em" height=".5em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#up-arrow"></use></svg></a>
{{- else if and (eq .Sort "size") (ne .Order "asc")}}
<a href="?sort=size&order=asc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}">Size <svg width="1em" height=".5em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#down-arrow"></use></svg></a>
<a href="?sort=size&order=asc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}{{if ne 0 .ItemOffset}}&offset={{.ItemOffset}}{{end}}">Size <svg width="1em" height=".5em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#down-arrow"></use></svg></a>
{{- else}}
<a href="?sort=size&order=asc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}">Size</a>
<a href="?sort=size&order=asc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}{{if ne 0 .ItemOffset}}&offset={{.ItemOffset}}{{end}}">Size</a>
{{- end}}
</th>
<th class="hideable">
{{- if and (eq .Sort "time") (ne .Order "desc")}}
<a href="?sort=time&order=desc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}">Modified <svg width="1em" height=".5em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#up-arrow"></use></svg></a>
<a href="?sort=time&order=desc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}{{if ne 0 .ItemOffset}}&offset={{.ItemOffset}}{{end}}">Modified <svg width="1em" height=".5em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#up-arrow"></use></svg></a>
{{- else if and (eq .Sort "time") (ne .Order "asc")}}
<a href="?sort=time&order=asc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}">Modified <svg width="1em" height=".5em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#down-arrow"></use></svg></a>
<a href="?sort=time&order=asc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}{{if ne 0 .ItemOffset}}&offset={{.ItemOffset}}{{end}}">Modified <svg width="1em" height=".5em" version="1.1" viewBox="0 0 12.922194 6.0358899"><use xlink:href="#down-arrow"></use></svg></a>
{{- else}}
<a href="?sort=time&order=asc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}">Modified</a>
<a href="?sort=time&order=asc{{if ne 0 .ItemsLimitedTo}}&limit={{.ItemsLimitedTo}}{{end}}{{if ne 0 .ItemOffset}}&offset={{.ItemOffset}}{{end}}">Modified</a>
{{- end}}
</th>
<th class="hideable"></th>