[MD Bookmarks] Add UI for multi-item drag and drop chip.

chrome/browser/resources/md_bookmarks/dnd_chip.html

Index: chrome/browser/resources/md_bookmarks/dnd_chip.html
diff --git a/chrome/browser/resources/md_bookmarks/dnd_chip.html b/chrome/browser/resources/md_bookmarks/dnd_chip.html
index 9703e169ec632a7ddbb3fdbb21364b091116eadb..8c851ac72101f1e0f4f51f61af5c1193eca3fd03 100644
--- a/chrome/browser/resources/md_bookmarks/dnd_chip.html
+++ b/chrome/browser/resources/md_bookmarks/dnd_chip.html
@@ -9,24 +9,38 @@
   <template>
     <style include="shared-style">
       :host {
-        align-items: center;
+        --chip-width: 172px;
+        --chip-height: 40px;
+        --chip-padding-x: 20px;
+
+        left: 0;
+        pointer-events: none;
+        position: absolute;
+        top: 0;
+        transform: translate(calc(var(--mouse-x) - var(--chip-width) * 0.5),
+                             calc(var(--mouse-y) - var(--chip-height) * 0.8));
+        z-index: 2;
+      }
+
+      :host(:not([showing_])) {
+        display: none;
+      }
+
+      .chip-container {
         background-color: var(--interactive-color);
-        border-radius: 20px;
+        border-radius: calc(var(--chip-height) / 2);
         box-shadow: 0 0 8px 0 rgba(0,0,0,0.12), 0 8px 8px 0 rgba(0,0,0,0.24);

[tsergeant, 2017/07/05 01:30:25]

Nit: Missed this last time, but these rgba values probably should have spaces in
them.

[calamity, 2017/07/05 07:10:09]

Done. Surprised the linter didn't catch this.

[tsergeant, 2017/07/05 07:36:19]

The CSS linter only checks a few specific things rather than the whole style
guide

-        display: none;
-        height: 40px;
+        height: var(--chip-height);
         left: 0;
-        padding: 0 20px;
-        pointer-events: none;
+        padding: 0 var(--chip-padding-x);
         position: absolute;
         top: 0;
-        transform: translate(
-            calc(var(--mouse-x) - 50%), calc(var(--mouse-y) - 80%));
-        width: 132px;
+        width: calc(var(--chip-width) - var(--chip-padding-x) * 2);
       }
 
-      :host([showing_]) {
-        display: flex;
+      #secondary {
+        left: 5px;
+        top: 5px;
       }
 
       #title {
@@ -41,13 +55,10 @@
       }
 
       #icon-wrapper {
-        align-items: center;
         background: white;
         border-radius: 12px;
         color: var(--secondary-text-color);
-        display: flex;
         height: 24px;
-        justify-content: center;
         position: relative;
         width: 24px;
       }
@@ -58,13 +69,37 @@
         margin: 2px;
         width: 16px;
       }
+
+      .centered {
+        align-items: center;
+        display: flex;
+        justify-content: center;
+      }
+
+      #count {
+        background: var(--google-red-500);
+        border-radius: 12px;
+        color: white;
+        font-weight: 500;
+        height: 24px;
+        min-width: 14px;
+        padding: 0 5px;
+        position: absolute;
+        right: -170px;

[tsergeant, 2017/07/05 01:30:25]

This looks a bit wonky in RTL.

[calamity, 2017/07/05 07:10:09]

Fixed. But frankly, I don't know how to parse RTL so... RTL looks a bit wonky to
_me_ >_>

+        top: -10px;
+      }
     </style>
-    <div id="icon-wrapper">
-      <iron-icon id="folder-icon" icon="cr:folder" hidden$="[[!isFolder_]]">
-      </iron-icon>
-      <div id="icon" hidden$="[[isFolder_]]"></div>
+    <div id="secondary" class="chip-container" hidden$="[[!isMultiItem_]]">
+    </div>
+    <div id="primary" class="chip-container centered">
+      <div id="icon-wrapper" class="centered">
+        <iron-icon id="folder-icon" icon="cr:folder" hidden$="[[!isFolder_]]">
+        </iron-icon>
+        <div id="icon" hidden$="[[isFolder_]]"></div>
+      </div>
+      <div id="title"></div>
     </div>
-    <div id="title"></div>
+    <div id="count" class="centered" hidden$="[[!isMultiItem_]]"></div>
   </template>
   <script src="chrome://bookmarks/dnd_chip.js"></script>
 <dom-module>