1 files changed, 118 insertions, 0 deletions
diff --git a/Source/WebInspectorUI/UserInterface/Base/Setting.js b/Source/WebInspectorUI/UserInterface/Base/Setting.js
new file mode 100644
index 000000000..257524e3f
--- /dev/null
+++ b/Source/WebInspectorUI/UserInterface/Base/Setting.js
@@ -0,0 +1,118 @@
+/*
+ * Copyright (C) 2009 Google Inc. All rights reserved.
+ * Copyright (C) 2013 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:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
+ * OWNER OR 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.Setting = class Setting extends WebInspector.Object
+{
+    constructor(name, defaultValue)
+    {
+        super();
+
+        this._name = name;
+
+        let inspectionLevel = InspectorFrontendHost ? InspectorFrontendHost.inspectionLevel() : 1;
+        let levelString = inspectionLevel > 1 ? "-" + inspectionLevel : "";
+        this._localStorageKey = `com.apple.WebInspector${levelString}.${name}`;
+        this._defaultValue = defaultValue;
+    }
+
+    // Public
+
+    get name()
+    {
+        return this._name;
+    }
+
+    get value()
+    {
+        if ("_value" in this)
+            return this._value;
+
+        // Make a copy of the default value so changes to object values don't modify the default value.
+        this._value = JSON.parse(JSON.stringify(this._defaultValue));
+
+        if (!window.InspectorTest && window.localStorage && this._localStorageKey in window.localStorage) {
+            try {
+                this._value = JSON.parse(window.localStorage[this._localStorageKey]);
+            } catch (e) {
+                delete window.localStorage[this._localStorageKey];
+            }
+        }
+
+        return this._value;
+    }
+
+    set value(value)
+    {
+        if (this._value === value)
+            return;
+
+        this._value = value;
+
+        if (!window.InspectorTest && window.localStorage) {
+            try {
+                // Use Object.shallowEqual to properly compare objects.
+                if (Object.shallowEqual(this._value, this._defaultValue))
+                    delete window.localStorage[this._localStorageKey];
+                else
+                    window.localStorage[this._localStorageKey] = JSON.stringify(this._value);
+            } catch (e) {
+                console.error("Error saving setting with name: " + this._name);
+            }
+        }
+
+        this.dispatchEventToListeners(WebInspector.Setting.Event.Changed, this._value, {name: this._name});
+    }
+
+    reset()
+    {
+        // Make a copy of the default value so changes to object values don't modify the default value.
+        this.value = JSON.parse(JSON.stringify(this._defaultValue));
+    }
+};
+
+WebInspector.Setting.Event = {
+    Changed: "setting-changed"
+};
+
+WebInspector.settings = {
+    enableLineWrapping: new WebInspector.Setting("enable-line-wrapping", false),
+    indentUnit: new WebInspector.Setting("indent-unit", 4),
+    tabSize: new WebInspector.Setting("tab-size", 4),
+    indentWithTabs: new WebInspector.Setting("indent-with-tabs", false),
+    showWhitespaceCharacters: new WebInspector.Setting("show-whitespace-characters", false),
+    showInvalidCharacters: new WebInspector.Setting("show-invalid-characters", false),
+    clearLogOnNavigate: new WebInspector.Setting("clear-log-on-navigate", true),
+    clearNetworkOnNavigate: new WebInspector.Setting("clear-network-on-navigate", true),
+    zoomFactor: new WebInspector.Setting("zoom-factor", 1),
+    // FIXME: change initial value to 'system' once we are happy with RTL support.
+    // This will cause Web Inspector to use the system user interface layout direction.
+    layoutDirection: new WebInspector.Setting("layout-direction", "ltr"),
+};