Add Markdown preview for textarea, see #407

1 files changed, 53 insertions, 1 deletions

diff --git a/assets/js/base.js b/assets/js/base.js
index 0a17696e..d6c332f4 100644
--- a/assets/js/base.js
+++ b/assets/js/base.js
@@ -65,6 +65,54 @@ var Kanboard = (function() {
             return true;
         },
 
+        // Generate Markdown preview
+        MarkdownPreview: function(e) {
+
+            e.preventDefault();
+
+            var link = $(this);
+            var nav = $(this).closest("ul");
+            var write = $(".write-area");
+            var preview = $(".preview-area");
+            var textarea = $("textarea");
+
+            var request = $.ajax({
+                url: "?controller=app&action=preview",
+                contentType: "application/json",
+                type: "POST",
+                processData: false,
+                dataType: "html",
+                data: JSON.stringify({
+                    "text": textarea.val()
+                }),
+            });
+
+            request.done(function(data) {
+
+                nav.find("li").removeClass("form-tab-selected");
+                link.parent().addClass("form-tab-selected");
+
+                preview.find(".markdown").html(data)
+                preview.css("height", textarea.css("height"));
+                preview.css("width", textarea.css("width"));
+
+                write.hide();
+                preview.show();
+            });
+        },
+
+        // Show the Markdown textarea
+        MarkdownWriter: function(e) {
+
+            e.preventDefault();
+
+            $(this).closest("ul").find("li").removeClass("form-tab-selected")
+            $(this).parent().addClass("form-tab-selected");
+
+            $(".write-area").show();
+            $(".preview-area").hide();
+        },
+
         // Common init
         Init: function() {
 
@@ -84,7 +132,11 @@ var Kanboard = (function() {
             $("#board-selector").change(function() {
                 window.location = $(this).attr("data-board-url").replace(/%d/g, $(this).val());
             });
+
+            // Markdown Preview for textareas
+            $("#markdown-preview").click(Kanboard.MarkdownPreview);
+            $("#markdown-write").click(Kanboard.MarkdownWriter);
         }
     };
 
-})();
\ No newline at end of file
+})();