Add preview functionality to rich text controls

[rails.git] / app / assets / javascripts / site.js

diff --git a/app/assets/javascripts/site.js b/app/assets/javascripts/site.js
index 95815d44efd3b3f29c2470a38d43f6845d5a6dde..5d727a0697fa3a982f56dc56c0b66d4a496eabd9 100644 (file)
--- a/app/assets/javascripts/site.js
+++ b/app/assets/javascripts/site.js
@@ -205,3 +205,51 @@ function makeShortCode(lat, lon, zoom) {
     }
     return str;
 }
+
+/*
+ * Click handler to switch a rich text control to preview mode
+ */
+function previewRichtext(event) {
+  var editor = $(this).parents(".richtext_container").find("textarea");
+  var preview = $(this).parents(".richtext_container").find(".richtext_preview");
+  var width = editor.outerWidth() - preview.outerWidth() + preview.innerWidth();
+  var minHeight = editor.outerHeight() - preview.outerHeight() + preview.innerHeight();
+
+  editor.hide();
+  preview.load(editor.attr("data-preview-url"), { text: editor.val() });
+  preview.width(width);
+  preview.css("min-height", minHeight + "px");
+  preview.show();
+
+  $(this).siblings(".richtext_doedit").prop("disabled", false);
+  $(this).prop("disabled", true);
+
+  event.preventDefault();
+}
+
+/*
+ * Click handler to switch a rich text control to edit mode
+ */
+function editRichtext(event) {
+  var editor = $(this).parents(".richtext_container").find("textarea");
+  var preview = $(this).parents(".richtext_container").find(".richtext_preview");
+
+  preview.hide();
+  editor.show();
+
+  $(this).siblings(".richtext_dopreview").prop("disabled", false);
+  $(this).prop("disabled", true);
+
+  event.preventDefault();
+}
+
+/*
+ * Setup any rich text controls
+ */
+$(document).ready(function () {
+  $(".richtext_preview").hide();
+  $(".richtext_doedit").prop("disabled", true);
+  $(".richtext_dopreview").prop("disabled", false);
+  $(".richtext_doedit").click(editRichtext);
+  $(".richtext_dopreview").click(previewRichtext);
+});