go.chromium.org/luci@v0.0.0-20240309015107-7cdc2e660f33/cipd/appengine/ui/nav.go (about)

     1  // Copyright 2018 The LUCI Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package ui
    16  
    17  import (
    18  	"strings"
    19  )
    20  
    21  type breadcrumb struct {
    22  	Title   string
    23  	Href    string
    24  	Package bool
    25  	Last    bool
    26  }
    27  
    28  // breadcrumbs builds a data for the breadcrumps navigation element.
    29  //
    30  // It contains a prefix path, where each element is clickable.
    31  func breadcrumbs(path string, ver string, pkg bool) []breadcrumb {
    32  	out := []breadcrumb{
    33  		{Title: "[root]", Href: listingPageURL("", "")},
    34  	}
    35  	if path != "" {
    36  		chunks := strings.Split(path, "/")
    37  		for i, ch := range chunks {
    38  			out = append(out, breadcrumb{
    39  				Title: ch,
    40  				Href:  listingPageURL(strings.Join(chunks[:i+1], "/"), ""),
    41  			})
    42  		}
    43  	}
    44  	out[len(out)-1].Package = pkg
    45  	if ver != "" {
    46  		out = append(out, breadcrumb{
    47  			Title: ver,
    48  			Href:  instancePageURL(path, ver),
    49  		})
    50  	}
    51  	out[len(out)-1].Last = true
    52  	return out
    53  }