Heap snapshot visualizations

runtime/observatory/lib/src/elements/heap_snapshot.html

Index: runtime/observatory/lib/src/elements/heap_snapshot.html
diff --git a/runtime/observatory/lib/src/elements/heap_snapshot.html b/runtime/observatory/lib/src/elements/heap_snapshot.html
new file mode 100644
index 0000000000000000000000000000000000000000..3105ecf8d9a806ae8b7d7a359b43680f54a67a8b
--- /dev/null
+++ b/runtime/observatory/lib/src/elements/heap_snapshot.html
@@ -0,0 +1,200 @@
+<link rel="import" href="../../../../packages/polymer/polymer.html">
+<link rel="import" href="class_ref.html">
+<link rel="import" href="observatory_element.html">
+<link rel="import" href="nav_bar.html">
+<link rel="import" href="view_footer.html">
+
+<polymer-element name="heap-snapshot" extends="observatory-element">
+<template>
+  <link rel="stylesheet" href="css/shared.css">
+  <nav-bar>
+    <top-nav-menu></top-nav-menu>
+    <vm-nav-menu vm="{{ isolate.vm }}"></vm-nav-menu>
+    <isolate-nav-menu isolate="{{ isolate }}"></isolate-nav-menu>
+    <nav-menu link="{{ makeLink('/heap-snapshot', isolate) }}" anchor="heap snapshot" last="{{ true }}"></nav-menu>
+    <nav-refresh callback="{{ refresh }}"></nav-refresh>
+  </nav-bar>
+  <style>
+      /* general */
+      .well {
+        background-color: #ECECEC;
+        padding: 0.2em;
+      }
+      .center {
+        align-items: center;
+        justify-content: center;
+      }
+
+      /* status messages */
+      .statusMessage {
+        font-size: 150%;
+        font-weight: bold;
+      }
+      .statusBox {
+        height: 100%;
+        padding: 1em;
+      }
+
+      /* tables */
+      .table {
+        border-collapse: collapse!important;
+        table-layout: fixed;
+        height: 100%;
+      }
+      .th, .td {
+        padding: 8px;
+        vertical-align: top;
+      }
+      .table thead > tr > th {
+        vertical-align: bottom;
+        text-align: left;
+        border-bottom:2px solid #ddd;
+      }
+      .spacer {
+        width: 16px;
+      }
+      .left-border-spacer {
+        width: 16px;
+        border-left: 1px solid;
+      }
+      .clickable {
+        color: #0489c3;
+        text-decoration: none;
+        cursor: pointer;
+        min-width: 8em;
+      }
+      .clickable:hover {
+        text-decoration: underline;
+        cursor: pointer;
+      }
+      tr:hover:not(.focused) > td {
+        background-color: #FAFAFA;
+      }
+      .focused {
+        background-color: #F4C7C3;
+      }
+      .scroll {
+        overflow: scroll;
+      }
+      .outlined {
+        -webkit-box-shadow: 0px 0px 2px 1px rgba(0,0,0,0.75);
+        -moz-box-shadow: 0px 0px 2px 1px rgba(0,0,0,0.75);
+        box-shadow: 0px 0px 2px 1px rgba(0,0,0,0.75);
+        margin: 4px;
+      }
+      .centered {
+        margin-left: auto;
+        margin-right: auto;
+        justify-content: center;
+      }
+      .full-height {
+        height: 100%;
+      }
+      .mostly-full-height {
+        height: 80%;
+      }
+      .full-width {
+        width: 100%;
+      }
+      .focused-function-label {
+        flex: 0 1 auto;
+        margin-left: auto;
+        margin-right: auto;
+        justify-content: center;
+      }
+      .call-table {
+        flex: 1 1 auto;
+      }
+
+      .tree {
+        border-spacing: 0px;
+        width: 100%;
+        margin-bottom: 20px
+        vertical-align: middle;
+      }
+
+      .tree tbody tr {
+        animation: fadeIn 0.5s;
+        -moz-animation: fadeIn 0.5s;
+        -webkit-animation: fadeIn 0.5s;
+      }
+
+      .tree tbody tr:hover {
+        background-color: #FAFAFA;
+      }
+
+      .tree tr td:first-child,
+      .tree tr th:first-child {
+        width: 100%;
+      }
+
+      .tree thead > tr > th {
+        padding: 8px;
+        vertical-align: bottom;
+        text-align: left;
+        border-bottom: 1px solid #ddd;
+      }
+  </style>
+  <div class="content-centered-big">
+    <h1>Heap Snapshot</h1>
+    <hr>
+    <template if="{{ state != 'Done' }}">
+      <div class="statusBox shadow center">
+        <div class="statusMessage">{{state}}</div>
+      </div>
+    </template>
+    <template if="{{ state == 'Done' }}">
+      <div class="memberList">
+        <div class="memberItem">
+          <div class="memberName">Refreshed at </div>
+          <div class="memberValue">{{ snapshot.timeStamp }}</div>
+        </div>
+        <div class="memberItem">
+          <div class="memberName">Objects </div>
+          <div class="memberValue">{{ snapshot.graph.vertexCount }}</div>
+        </div>
+        <div class="memberItem">
+          <div class="memberName">References </div>
+          <div class="memberValue">{{ snapshot.graph.edgeCount }}</div>
+        </div>
+        <div class="memberItem">
+          <div class="memberName">Size </div>
+          <div class="memberValue">{{ snapshot.graph.size | formatSize }}</div>
+        </div>
+      </div>
+      <div class="memberItem">
+         <div class="memberName">Analysis </div>
+         <div class="memberValue">
+           <select value="{{analysisSelector}}">
+             <option value="DominatorTree">Dominator tree</option>
+             <option value="MergeByClass">Group by class</option>
+           </select>
+         </div>
+      </div>
+    </template>
+  </div>
+  <br>
+  <div class="content-centered-big">
+    <div class="tableWell shadow">
+      <table class="full-width tree">
+        <thead id="treeHeader">
+        <tr>
+          <th>
+            <template if="{{analysisSelector == 'DominatorTree'}}">Object</template>
+            <template if="{{analysisSelector == 'MergeByClass'}}">Class</template>
+          </th>
+          <th style="white-space: nowrap">
+            <template if="{{analysisSelector == 'DominatorTree'}}">Retained Size</template>
+            <template if="{{analysisSelector == 'MergeByClass'}}">Shallow Size</template>
+          </th>
+        </tr>
+        </thead>
+          <tbody id="treeBody"></tbody>
+      </table>
+    </div>
+  </div>
+  <view-footer></view-footer>
+</template>
+</polymer-element>
+
+<script type="application/dart" src="heap_snapshot.dart"></script>