1 files changed, 162 insertions, 0 deletions
diff --git a/Source/WebInspectorUI/UserInterface/Views/StyleDetailsPanel.js b/Source/WebInspectorUI/UserInterface/Views/StyleDetailsPanel.js
new file mode 100644
index 000000000..6ae8e32ee
--- /dev/null
+++ b/Source/WebInspectorUI/UserInterface/Views/StyleDetailsPanel.js
@@ -0,0 +1,162 @@
+/*
+ * Copyright (C) 2013, 2015 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+WebInspector.StyleDetailsPanel = class StyleDetailsPanel extends WebInspector.View
+{
+    constructor(delegate, className, identifier, label)
+    {
+        super();
+
+        this._delegate = delegate || null;
+
+        // Add this offset-sections class name so the sticky headers don't overlap the navigation bar.
+        this.element.classList.add(className, "offset-sections");
+
+        this._navigationInfo = {identifier, label};
+
+        this._nodeStyles = null;
+        this._visible = false;
+    }
+
+    // Public
+
+    get navigationInfo()
+    {
+        return this._navigationInfo;
+    }
+
+    get nodeStyles()
+    {
+        return this._nodeStyles;
+    }
+
+    shown()
+    {
+        if (this._visible)
+            return;
+
+        this._visible = true;
+
+        this._refreshNodeStyles();
+
+        // FIXME: remove once <https://webkit.org/b/150741> is fixed.
+        this.updateLayoutIfNeeded();
+    }
+
+    hidden()
+    {
+        this._visible = false;
+
+        this.cancelLayout();
+    }
+
+    markAsNeedsRefresh(domNode)
+    {
+        console.assert(domNode);
+        if (!domNode)
+            return;
+
+        if (!this._nodeStyles || this._nodeStyles.node !== domNode) {
+            if (this._nodeStyles) {
+                this._nodeStyles.removeEventListener(WebInspector.DOMNodeStyles.Event.Refreshed, this.nodeStylesRefreshed, this);
+                this._nodeStyles.removeEventListener(WebInspector.DOMNodeStyles.Event.NeedsRefresh, this._nodeStylesNeedsRefreshed, this);
+            }
+
+            this._nodeStyles = WebInspector.cssStyleManager.stylesForNode(domNode);
+
+            console.assert(this._nodeStyles);
+            if (!this._nodeStyles)
+                return;
+
+            this._nodeStyles.addEventListener(WebInspector.DOMNodeStyles.Event.Refreshed, this.nodeStylesRefreshed, this);
+            this._nodeStyles.addEventListener(WebInspector.DOMNodeStyles.Event.NeedsRefresh, this._nodeStylesNeedsRefreshed, this);
+
+            this._forceSignificantChange = true;
+        }
+
+        if (this._visible)
+            this._refreshNodeStyles();
+    }
+
+    refresh(significantChange)
+    {
+        // Implemented by subclasses.
+        this.dispatchEventToListeners(WebInspector.StyleDetailsPanel.Event.Refreshed);
+    }
+
+    // Protected
+
+    nodeStylesRefreshed(event)
+    {
+        if (this._visible)
+            this._refreshPreservingScrollPosition(event.data.significantChange);
+    }
+
+    // Private
+
+    get _initialScrollOffset()
+    {
+        if (!WebInspector.cssStyleManager.canForcePseudoClasses())
+            return 0;
+        return this.nodeStyles.node.enabledPseudoClasses.length ? 0 : WebInspector.CSSStyleDetailsSidebarPanel.NoForcedPseudoClassesScrollOffset;
+    }
+
+    _refreshNodeStyles()
+    {
+        if (!this._nodeStyles)
+            return;
+        this._nodeStyles.refresh();
+    }
+
+    _refreshPreservingScrollPosition(significantChange)
+    {
+        significantChange = this._forceSignificantChange || significantChange || false;
+
+        var previousScrollTop = this._initialScrollOffset;
+
+        // Only remember the scroll position if the previous node is the same as this one.
+        if (this.element.parentNode && this._previousRefreshNodeIdentifier === this._nodeStyles.node.id)
+            previousScrollTop = this.element.parentNode.scrollTop;
+
+        this.refresh(significantChange);
+
+        this._previousRefreshNodeIdentifier = this._nodeStyles.node.id;
+
+        if (this.element.parentNode)
+            this.element.parentNode.scrollTop = previousScrollTop;
+
+        this._forceSignificantChange = false;
+    }
+
+    _nodeStylesNeedsRefreshed(event)
+    {
+        if (this._visible)
+            this._refreshNodeStyles();
+    }
+};
+
+WebInspector.StyleDetailsPanel.Event = {
+    Refreshed: "style-details-panel-refreshed"
+};