Improve Meteor demo

10 years ago · 281f5fc7f8
5 changed files with 135 additions and 14 deletions
--- a/meteor/example/README.md
+++ b/meteor/example/README.md
@ -0,0 +1,60 @@
+# RubaXa:Sortable Meteor demo
+
+This demo showcases the two-way integration between the reorderable list
+widget [Sortable](https://github.com/RubaXa/Sortable/) and Meteor.js. Meteor
+Mongo collections are updated when items are added, removed or reordered, and
+the order is persisted.
+
+It also shows list grouping and control over what lists can give or receive
+elements. You can only drag elements from the list to the left onto the list
+to the right.
+
+## Usage
+
+The example uses the local package from the checkout, so it needs to wire
+up some files (`package.js` and `package.json`). This is done by the handy
+run script:
+
+### Windows
+
+    git clone git@github.com:RubaXa/Sortable.git
+    cd Sortable
+    git checkout dev
+    cd meteor\example
+    run.bat
+
+### Elsewhere
+
+    git clone git@github.com:RubaXa/Sortable.git
+    cd Sortable
+    git checkout dev
+    meteor/example./run.sh
+
+## Prior art
+
+### Differential
+
+Differential wrote [a blog post on reorderable lists with
+Meteor](differential.com/blog/sortable-lists-in-meteor-using-jquery-ui) and
+[jQuery UI Sortable](http://jqueryui.com/sortable/). It served as inspiration
+for integrating [rubaxa:sortable](rubaxa.github.io/Sortable/),
+which uses the HTML5 native drag&drop API (not without [its
+limitations](https://github.com/RubaXa/Sortable/issues/106)).
+The reordering method used by the Differential example can lead to data loss
+though, because it calculates the new order of a dropped element as the
+arithmetic mean of the elements before and after it. This [runs into limitations
+of floating point precision](http://programmers.stackexchange.com/questions/266451/maintain-ordered-collection-by-updating-as-few-order-fields-as-possible)
+in JavaScript after <50 reorderings.
+
+### Todos animated
+
+http://todos-dnd-animated.meteor.com/ ([source](https://github.com/nleush/meteor-todos-sortable-animation))
+is based on old Meteor Blaze (back then Spark) API, and won't work with current versions.
+It does showcase some neat features, such as animation when collection elements
+are reordered by another client. It uses jQuery UI Sortable as well, which lacks
+some features vs. rubaxa:Sortable, e.g. text selection within the item.
+
+## TODO
+
+* Animation
+* Indication that an item is being edited
--- a/meteor/example/client/define-object-type.html
+++ b/meteor/example/client/define-object-type.html
@ -1,11 +1,15 @@
 <head>
-  <title>RubaXa:Sortable Demo</title>
+  <title>Reactive RubaXa:Sortable for Meteor</title>
 </head>

 <body>
+  {{> navbar}}
+
  <div class="container">
    <div class="page-header">
-      <h1>Custom attributes</h1>
+      <h1>RubaXa:Sortable - reactive reorderable lists for Meteor</h1>
+      <h2>Drag attribute types from the left to define an object type on the right</h2>
+      <h3>Drag the <i class="sortable-handle mdi-action-view-headline"></i> handle to reorder elements</h3>
    </div>

    {{> typeDefinition}}
@ -26,7 +30,7 @@
      </div>

      <div class="sortable target" id="object">
-        {{#sortable items=attributes animation="0" handle=".sortable-handle" ghostClass="sortable-ghost" options=attributesOptions}}
+        {{#sortable items=attributes animation="100" handle=".sortable-handle" ghostClass="sortable-ghost" options=attributesOptions}}
          {{> sortableItemTarget}}
        {{/sortable}}
      </div>
@ -34,7 +38,6 @@
    </div>
  </div>

-
 </template>

 <template name="sortableItemTarget">
@ -48,3 +51,44 @@
    </button>
  </div>
 </template>
+
+
+<template name="navbar">
+  <div class="navbar navbar-inverse">
+    <div class="navbar-header">
+      <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-inverse-collapse">
+        <span class="icon-bar"></span>
+        <span class="icon-bar"></span>
+        <span class="icon-bar"></span>
+      </button>
+      <a class="navbar-brand" href="https://atmospherejs.com/rubaxa/sortable">RubaXa:Sortable</a>
+    </div>
+    <div class="navbar-collapse collapse navbar-inverse-collapse">
+      <ul class="nav navbar-nav">
+        <li class="active"><a href="http://rubaxa-sortable.meteor.com">Meteor Demo</a></li>
+        <li><a href="https://rubaxa.github.io/Sortable/" target="_blank">Sortable standalone demo</a></li>
+        <li class="dropdown">
+          <a href="javascript:void(0)" class="dropdown-toggle" data-toggle="dropdown">Source <b class="caret"></b></a>
+          <ul class="dropdown-menu">
+            <li class="dropdown-header">GitHub</li>
+            <li><a href="https://github.com/RubaXa/Sortable/tree/dev/meteor/example" target="_blank">This demo</a></li>
+            <li><a href="https://github.com/RubaXa/Sortable/tree/dev/meteor" target="_blank">Meteor integration</a></li>
+            <li><a href="https://github.com/RubaXa/Sortable" target="_blank">rubaxa/sortable</a></li>
+            <li class="divider"></li>
+            <li><a href="https://atmospherejs.com/rubaxa/sortable">Star this package on Atmosphere!</a></li>
+          </ul>
+        </li>
+      </ul>
+
+      <ul class="nav navbar-nav navbar-right">
+        <li class="dropdown">
+          <a href="javascript:void(0)" class="dropdown-toggle" data-toggle="dropdown">Resources <b class="caret"></b></a>
+          <ul class="dropdown-menu">
+            <li><a href="http://www.meteorpedia.com/read/Packaging_existing_Libraries">Packaging 3rd party libraries for Meteor</a></li>
+            <li><a href="https://twitter.com/dandv">Author: @dandv</a></li>
+          </ul>
+        </li>
+      </ul>
+    </div>
+  </div>
+</template>
--- a/meteor/example/client/define-object-type.js
+++ b/meteor/example/client/define-object-type.js
@ -32,12 +32,12 @@ Template.typeDefinition.helpers({
      delete event.data._id; // Generate a new id when inserting in the Attributes collection. Otherwise, if we add the same type twice, we'll get an error that the ids are not unique.
      delete event.data.icon;
      event.data.type = event.data.name;
-      event.data.name = 'Rename me'
+      event.data.name = 'Rename me (double click)'
    },
    // event handler for reordering attributes
    onSort: function (event) {
-      console.log('Moved object %d from %d to %d',
-          event.data.order, event.oldIndex, event.newIndex
+      console.log('Item %s went from #%d to #%d',
+          event.data.name, event.oldIndex, event.newIndex
      );
    }
  }
@ -59,17 +59,23 @@ Template.sortableItemTarget.events({
    input.focus();
  },
  'blur input[type=text]': function (event, template) {
-    // commit the change to the name
+    // commit the change to the name, if any
    var input = template.$('input');
    input.hide();
    template.$('.name').show();
    // TODO - what is the collection here? We'll hard-code for now.
    // https://github.com/meteor/meteor/issues/3303
-    Attributes.update(this._id, {$set: {name: input.val()}});
+    if (this.name !== input.val() && this.name !== '')
+      Attributes.update(this._id, {$set: {name: input.val()}});
  },
-  'keydown input[type=text]': function(event) {
-    // ESC or ENTER
-    if (event.which === 27 || event.which === 13) {
+  'keydown input[type=text]': function (event, template) {
+    if (event.which === 27) {
+      // ESC - discard edits and keep existing value
+      template.$('input').val(this.name);
+      event.preventDefault();
+      event.target.blur();
+    } else if (event.which === 13) {
+      // ENTER
      event.preventDefault();
      event.target.blur();
    }
@ -81,5 +87,15 @@ Template.sortable.events({
  'click .close': function (event, template) {
    // `this` is the data context set by the enclosing block helper (#each, here)
    template.collection.remove(this._id);
+    // custom code, working on a specific collection
+    if (Attributes.find().count() === 0) {
+      Meteor.setTimeout(function () {
+        Attributes.insert({
+          name: 'Not nice to delete the entire list! Add some attributes instead.',
+          type: 'String',
+          order: 0
+        })
+      }, 1000);
+    }
  }
 });
--- a/meteor/example/package.json
+++ b/meteor/example/package.json
@ -0,0 +1 @@
+../../package.json
--- a/meteor/example/run.sh
+++ b/meteor/example/run.sh
@ -7,8 +7,8 @@ int_trap() {
 }
 trap int_trap INT

-ln -s "meteor/package.js" ../../package.js
-ln -s "../../package.json" package.json
+ln -s "meteor/package.js" ../../package.js 2>/dev/null
+ln -s "../../package.json" package.json 2>/dev/null

 meteor run "$@"