Add contextual methods

3 files changed, 103 insertions, 4 deletions

diff --git a/common.go b/common.go
index 460f74d..3547af1 100644
--- a/common.go
+++ b/common.go
@@ -22,7 +22,7 @@ package main
 import (
         "bytes"
         "fmt"
-        "github.com/hoisie/mustache"
+        "github.com/drbawb/mustache"
         "github.com/russross/blackfriday"
         "io/ioutil"
         "path"
@@ -100,7 +100,7 @@ func compile(dirPath string, elements map[string][]byte, sourceDir, outputDir, s
         }
 
         template := merge(elements)
-        page := mustache.Render(string(template), nil /* TODO: generate contextual variables */)
+        page := mustache.Render(string(template), makeContext(dirPath, sourceDir, outputDir, exts))
 
         err := writeFile(path.Join(outputDir, strings.TrimPrefix(dirPath, sourceDir), saveAs), []byte(page))
         if err != nil {
diff --git a/context.go b/context.go
new file mode 100644
index 0000000..8b41a52
--- /dev/null
+++ b/context.go
@@ -0,0 +1,99 @@
+/*
+
+        This file is part of CompileTree (https://github.com/Pacien/CompileTree)
+
+        CompileTree is free software: you can redistribute it and/or modify
+        it under the terms of the GNU Affero General Public License as published by
+        the Free Software Foundation, either version 3 of the License, or
+        (at your option) any later version.
+
+        CompileTree is distributed in the hope that it will be useful,
+        but WITHOUT ANY WARRANTY; without even the implied warranty of
+        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+        GNU Affero General Public License for more details.
+
+        You should have received a copy of the GNU Affero General Public License
+        along with CompileTree. If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+package main
+
+import (
+        "path"
+        "strings"
+)
+
+type page struct {
+        Title string
+        URL   string
+}
+
+type context struct {
+        path      string
+        IsCurrent func(params []string, data string) string
+        IsParent  func(params []string, data string) string
+}
+
+// Methods accessible in templates
+
+func (c context) URL() string {
+        p := strings.TrimPrefix(c.path, *settings.sourceDir)
+        return path.Clean("/" + p)
+}
+
+func (c context) Title() string {
+        _, t := path.Split(strings.TrimRight(c.URL(), "/"))
+        return t
+}
+
+func (c context) SubPages() (subPages []page) {
+        dirs, _ := ls(c.path)
+        for _, dir := range dirs {
+                var page page
+                page.Title = dir
+                page.URL = path.Join(c.URL(), dir)
+                subPages = append(subPages, page)
+        }
+        return
+}
+
+func (c context) IsRoot() bool {
+        if c.URL() == "/" {
+                return true
+        }
+        return false
+}
+
+func (c context) isCurrent(pageTitle string) bool {
+        if c.Title() == pageTitle {
+                return true
+        }
+        return false
+}
+
+func (c context) isParent(pageTitle string) bool {
+        for _, parent := range strings.Split(c.URL(), "/") {
+                if parent == pageTitle {
+                        return true
+                }
+        }
+        return false
+}
+
+func makeContext(pagePath, sourceDir, outputDir string, exts []string) (c context) {
+        c.path = pagePath
+        c.IsCurrent = func(params []string, data string) string {
+                if c.isCurrent(strings.Join(params, " ")) {
+                        return data
+                }
+                return ""
+        }
+        c.IsParent = func(params []string, data string) string {
+                if c.isParent(strings.Join(params, " ")) {
+                        return data
+                }
+                return ""
+        }
+        return
+}
diff --git a/dynamic.go b/dynamic.go
index b6388bc..ff567c1 100644
--- a/dynamic.go
+++ b/dynamic.go
@@ -21,7 +21,7 @@ package main
 
 import (
         "fmt"
-        "github.com/hoisie/mustache"
+        "github.com/drbawb/mustache"
         "net/http"
         "path"
         "strings"
@@ -49,7 +49,7 @@ func handle(w http.ResponseWriter, r *http.Request) {
 
         // render the page
         template := merge(elements)
-        page := mustache.Render(string(template), nil /* TODO: generate contextual variables */)
+        page := mustache.Render(string(template), makeContext(path.Join(*settings.sourceDir, request), *settings.sourceDir, *settings.outputDir, settings.exts))
 
         // serve the page
         _, err := w.Write([]byte(page))