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/*
* 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.
*/
WI.ScopeChainDetailsSidebarPanel = class ScopeChainDetailsSidebarPanel extends WI.DetailsSidebarPanel
{
constructor()
{
super("scope-chain", WI.UIString("Scope Chain"));
this._callFrame = null;
this._watchExpressionsSetting = new WI.Setting("watch-expressions", []);
this._watchExpressionsSetting.addEventListener(WI.Setting.Event.Changed, this._updateWatchExpressionsNavigationBar, this);
this._watchExpressionOptionsElement = document.createElement("div");
this._watchExpressionOptionsElement.classList.add("options");
this._navigationBar = new WI.NavigationBar;
this._watchExpressionOptionsElement.appendChild(this._navigationBar.element);
let addWatchExpressionButton = new WI.ButtonNavigationItem("add-watch-expression", WI.UIString("Add watch expression"), "Images/Plus13.svg", 13, 13);
addWatchExpressionButton.addEventListener(WI.ButtonNavigationItem.Event.Clicked, this._addWatchExpressionButtonClicked, this);
this._navigationBar.addNavigationItem(addWatchExpressionButton);
this._clearAllWatchExpressionButton = new WI.ButtonNavigationItem("clear-watch-expressions", WI.UIString("Clear watch expressions"), "Images/NavigationItemTrash.svg", 15, 15);
this._clearAllWatchExpressionButton.addEventListener(WI.ButtonNavigationItem.Event.Clicked, this._clearAllWatchExpressionsButtonClicked, this);
this._navigationBar.addNavigationItem(this._clearAllWatchExpressionButton);
this._refreshAllWatchExpressionButton = new WI.ButtonNavigationItem("refresh-watch-expressions", WI.UIString("Refresh watch expressions"), "Images/ReloadFull.svg", 13, 13);
this._refreshAllWatchExpressionButton.addEventListener(WI.ButtonNavigationItem.Event.Clicked, this._refreshAllWatchExpressionsButtonClicked, this);
this._navigationBar.addNavigationItem(this._refreshAllWatchExpressionButton);
this._watchExpressionsSectionGroup = new WI.DetailsSectionGroup;
this._watchExpressionsSection = new WI.DetailsSection("watch-expressions", WI.UIString("Watch Expressions"), [this._watchExpressionsSectionGroup], this._watchExpressionOptionsElement);
this.contentView.element.appendChild(this._watchExpressionsSection.element);
this._updateWatchExpressionsNavigationBar();
this.needsLayout();
// Update on console prompt eval as objects in the scope chain may have changed.
WI.runtimeManager.addEventListener(WI.RuntimeManager.Event.DidEvaluate, this._didEvaluateExpression, this);
// Update watch expressions when console execution context changes.
WI.runtimeManager.addEventListener(WI.RuntimeManager.Event.ActiveExecutionContextChanged, this._activeExecutionContextChanged, this);
// Update watch expressions on navigations.
WI.Frame.addEventListener(WI.Frame.Event.MainResourceDidChange, this._mainResourceDidChange, this);
// Update watch expressions on active call frame changes.
WI.debuggerManager.addEventListener(WI.DebuggerManager.Event.ActiveCallFrameDidChange, this._activeCallFrameDidChange, this);
}
// Public
inspect(objects)
{
// Convert to a single item array if needed.
if (!(objects instanceof Array))
objects = [objects];
var callFrameToInspect = null;
// Iterate over the objects to find a WI.CallFrame to inspect.
for (var i = 0; i < objects.length; ++i) {
if (!(objects[i] instanceof WI.CallFrame))
continue;
callFrameToInspect = objects[i];
break;
}
this.callFrame = callFrameToInspect;
return true;
}
get callFrame()
{
return this._callFrame;
}
set callFrame(callFrame)
{
if (callFrame === this._callFrame)
return;
this._callFrame = callFrame;
this.needsLayout();
}
closed()
{
WI.runtimeManager.removeEventListener(null, null, this);
WI.Frame.removeEventListener(null, null, this);
WI.debuggerManager.removeEventListener(null, null, this);
super.closed();
}
// Protected
layout()
{
let callFrame = this._callFrame;
Promise.all([this._generateWatchExpressionsSection(), this._generateCallFramesSection()]).then(function(sections) {
let [watchExpressionsSection, callFrameSections] = sections;
function delayedWork()
{
// Clear the timeout so we don't update the interface twice.
clearTimeout(timeout);
if (watchExpressionsSection)
this._watchExpressionsSectionGroup.rows = [watchExpressionsSection];
else {
let emptyRow = new WI.DetailsSectionRow(WI.UIString("No Watch Expressions"));
this._watchExpressionsSectionGroup.rows = [emptyRow];
emptyRow.showEmptyMessage();
}
this.contentView.element.removeChildren();
this.contentView.element.appendChild(this._watchExpressionsSection.element);
// Bail if the call frame changed while we were waiting for the async response.
if (this._callFrame !== callFrame)
return;
if (!callFrameSections)
return;
for (let callFrameSection of callFrameSections)
this.contentView.element.appendChild(callFrameSection.element);
}
// We need a timeout in place in case there are long running, pending backend dispatches. This can happen
// if the debugger is paused in code that was executed from the console. The console will be waiting for
// the result of the execution and without a timeout we would never update the scope variables.
let delay = WI.ScopeChainDetailsSidebarPanel._autoExpandProperties.size === 0 ? 50 : 250;
let timeout = setTimeout(delayedWork.bind(this), delay);
// Since ObjectTreeView populates asynchronously, we want to wait to replace the existing content
// until after all the pending asynchronous requests are completed. This prevents severe flashing while stepping.
InspectorBackend.runAfterPendingDispatches(delayedWork.bind(this));
}.bind(this)).catch(function(e) { console.error(e); });
}
_generateCallFramesSection()
{
let callFrame = this._callFrame;
if (!callFrame)
return Promise.resolve(null);
let detailsSections = [];
let foundLocalScope = false;
let sectionCountByType = new Map;
for (let type in WI.ScopeChainNode.Type)
sectionCountByType.set(WI.ScopeChainNode.Type[type], 0);
let scopeChain = callFrame.mergedScopeChain();
for (let scope of scopeChain) {
// Don't show sections for empty scopes unless it is the local scope, since it has "this".
if (scope.empty && scope.type !== WI.ScopeChainNode.Type.Local)
continue;
let title = null;
let extraPropertyDescriptor = null;
let collapsedByDefault = false;
let count = sectionCountByType.get(scope.type);
sectionCountByType.set(scope.type, ++count);
switch (scope.type) {
case WI.ScopeChainNode.Type.Local:
foundLocalScope = true;
collapsedByDefault = false;
title = WI.UIString("Local Variables");
if (callFrame.thisObject)
extraPropertyDescriptor = new WI.PropertyDescriptor({name: "this", value: callFrame.thisObject});
break;
case WI.ScopeChainNode.Type.Closure:
if (scope.__baseClosureScope && scope.name)
title = WI.UIString("Closure Variables (%s)").format(scope.name);
else
title = WI.UIString("Closure Variables");
collapsedByDefault = false;
break;
case WI.ScopeChainNode.Type.Block:
title = WI.UIString("Block Variables");
collapsedByDefault = false;
break;
case WI.ScopeChainNode.Type.Catch:
title = WI.UIString("Catch Variables");
collapsedByDefault = false;
break;
case WI.ScopeChainNode.Type.FunctionName:
title = WI.UIString("Function Name Variable");
collapsedByDefault = true;
break;
case WI.ScopeChainNode.Type.With:
title = WI.UIString("With Object Properties");
collapsedByDefault = foundLocalScope;
break;
case WI.ScopeChainNode.Type.Global:
title = WI.UIString("Global Variables");
collapsedByDefault = true;
break;
case WI.ScopeChainNode.Type.GlobalLexicalEnvironment:
title = WI.UIString("Global Lexical Environment");
collapsedByDefault = true;
break;
}
let detailsSectionIdentifier = scope.type + "-" + sectionCountByType.get(scope.type);
let detailsSection = new WI.DetailsSection(detailsSectionIdentifier, title, null, null, collapsedByDefault);
// FIXME: This just puts two ObjectTreeViews next to each other, but that means
// that properties are not nicely sorted between the two separate lists.
let rows = [];
for (let object of scope.objects) {
let scopePropertyPath = WI.PropertyPath.emptyPropertyPathForScope(object);
let objectTree = new WI.ObjectTreeView(object, WI.ObjectTreeView.Mode.Properties, scopePropertyPath);
objectTree.showOnlyProperties();
if (extraPropertyDescriptor) {
objectTree.appendExtraPropertyDescriptor(extraPropertyDescriptor);
extraPropertyDescriptor = null;
}
let treeOutline = objectTree.treeOutline;
treeOutline.registerScrollVirtualizer(this.contentView.element, 16);
treeOutline.addEventListener(WI.TreeOutline.Event.ElementAdded, this._treeElementAdded.bind(this, detailsSectionIdentifier), this);
treeOutline.addEventListener(WI.TreeOutline.Event.ElementDisclosureDidChanged, this._treeElementDisclosureDidChange.bind(this, detailsSectionIdentifier), this);
rows.push(new WI.ObjectPropertiesDetailSectionRow(objectTree, detailsSection));
}
detailsSection.groups[0].rows = rows;
detailsSections.push(detailsSection);
}
return Promise.resolve(detailsSections);
}
_generateWatchExpressionsSection()
{
let watchExpressions = this._watchExpressionsSetting.value;
if (!watchExpressions.length) {
if (this._usedWatchExpressionsObjectGroup) {
this._usedWatchExpressionsObjectGroup = false;
for (let target of WI.targets)
target.RuntimeAgent.releaseObjectGroup(WI.ScopeChainDetailsSidebarPanel.WatchExpressionsObjectGroupName);
}
return Promise.resolve(null);
}
for (let target of WI.targets)
target.RuntimeAgent.releaseObjectGroup(WI.ScopeChainDetailsSidebarPanel.WatchExpressionsObjectGroupName);
this._usedWatchExpressionsObjectGroup = true;
let watchExpressionsRemoteObject = WI.RemoteObject.createFakeRemoteObject();
let fakePropertyPath = WI.PropertyPath.emptyPropertyPathForScope(watchExpressionsRemoteObject);
let objectTree = new WI.ObjectTreeView(watchExpressionsRemoteObject, WI.ObjectTreeView.Mode.Properties, fakePropertyPath);
objectTree.showOnlyProperties();
let treeOutline = objectTree.treeOutline;
const watchExpressionSectionIdentifier = "watch-expressions";
treeOutline.addEventListener(WI.TreeOutline.Event.ElementAdded, this._treeElementAdded.bind(this, watchExpressionSectionIdentifier), this);
treeOutline.addEventListener(WI.TreeOutline.Event.ElementDisclosureDidChanged, this._treeElementDisclosureDidChange.bind(this, watchExpressionSectionIdentifier), this);
treeOutline.objectTreeElementAddContextMenuItems = this._objectTreeElementAddContextMenuItems.bind(this);
let promises = [];
for (let expression of watchExpressions) {
promises.push(new Promise(function(resolve, reject) {
let options = {objectGroup: WI.ScopeChainDetailsSidebarPanel.WatchExpressionsObjectGroupName, includeCommandLineAPI: false, doNotPauseOnExceptionsAndMuteConsole: true, returnByValue: false, generatePreview: true, saveResult: false};
WI.runtimeManager.evaluateInInspectedWindow(expression, options, function(object, wasThrown) {
object = object || WI.RemoteObject.fromPrimitiveValue(undefined);
let propertyDescriptor = new WI.PropertyDescriptor({name: expression, value: object}, undefined, undefined, wasThrown);
objectTree.appendExtraPropertyDescriptor(propertyDescriptor);
resolve();
});
}));
}
return Promise.all(promises).then(function() {
return Promise.resolve(new WI.ObjectPropertiesDetailSectionRow(objectTree));
});
}
_addWatchExpression(expression)
{
let watchExpressions = this._watchExpressionsSetting.value.slice(0);
watchExpressions.push(expression);
this._watchExpressionsSetting.value = watchExpressions;
this.needsLayout();
}
_removeWatchExpression(expression)
{
let watchExpressions = this._watchExpressionsSetting.value.slice(0);
watchExpressions.remove(expression, true);
this._watchExpressionsSetting.value = watchExpressions;
this.needsLayout();
}
_clearAllWatchExpressions()
{
this._watchExpressionsSetting.value = [];
this.needsLayout();
}
_addWatchExpressionButtonClicked(event)
{
function presentPopoverOverTargetElement()
{
let target = WI.Rect.rectFromClientRect(event.target.element.getBoundingClientRect());
popover.present(target, [WI.RectEdge.MAX_Y, WI.RectEdge.MIN_Y, WI.RectEdge.MAX_X]);
}
let popover = new WI.Popover(this);
let content = document.createElement("div");
content.classList.add("watch-expression");
content.appendChild(document.createElement("div")).textContent = WI.UIString("Add New Watch Expression");
let editorElement = content.appendChild(document.createElement("div"));
editorElement.classList.add("watch-expression-editor", WI.SyntaxHighlightedStyleClassName);
this._codeMirror = WI.CodeMirrorEditor.create(editorElement, {
lineWrapping: true,
mode: "text/javascript",
indentWithTabs: true,
indentUnit: 4,
matchBrackets: true,
value: "",
});
this._popoverCommitted = false;
this._codeMirror.addKeyMap({
"Enter": () => { this._popoverCommitted = true; popover.dismiss(); },
});
let completionController = new WI.CodeMirrorCompletionController(this._codeMirror);
completionController.addExtendedCompletionProvider("javascript", WI.javaScriptRuntimeCompletionProvider);
// Resize the popover as best we can when the CodeMirror editor changes size.
let previousHeight = 0;
this._codeMirror.on("changes", function(cm, event) {
let height = cm.getScrollInfo().height;
if (previousHeight !== height) {
previousHeight = height;
popover.update(false);
}
});
popover.content = content;
popover.windowResizeHandler = presentPopoverOverTargetElement;
presentPopoverOverTargetElement();
// CodeMirror needs a refresh after the popover displays, to layout, otherwise it doesn't appear.
setTimeout(() => {
this._codeMirror.refresh();
this._codeMirror.focus();
popover.update();
}, 0);
}
willDismissPopover(popover)
{
if (this._popoverCommitted) {
let expression = this._codeMirror.getValue().trim();
if (expression)
this._addWatchExpression(expression);
}
this._codeMirror = null;
}
_refreshAllWatchExpressionsButtonClicked(event)
{
this.needsLayout();
}
_clearAllWatchExpressionsButtonClicked(event)
{
this._clearAllWatchExpressions();
}
_didEvaluateExpression(event)
{
if (event.data.objectGroup === WI.ScopeChainDetailsSidebarPanel.WatchExpressionsObjectGroupName)
return;
this.needsLayout();
}
_activeExecutionContextChanged()
{
this.needsLayout();
}
_activeCallFrameDidChange()
{
this.needsLayout();
}
_mainResourceDidChange(event)
{
if (!event.target.isMainFrame())
return;
this.needsLayout();
}
_objectTreeElementAddContextMenuItems(objectTreeElement, contextMenu)
{
// Only add our watch expression context menus to the top level ObjectTree elements.
if (objectTreeElement.parent !== objectTreeElement.treeOutline)
return;
contextMenu.appendItem(WI.UIString("Remove Watch Expression"), () => {
let expression = objectTreeElement.property.name;
this._removeWatchExpression(expression);
});
}
_propertyPathIdentifierForTreeElement(identifier, objectPropertyTreeElement)
{
if (!objectPropertyTreeElement.property)
return null;
let propertyPath = objectPropertyTreeElement.thisPropertyPath();
if (propertyPath.isFullPathImpossible())
return null;
return identifier + "-" + propertyPath.fullPath;
}
_treeElementAdded(identifier, event)
{
let treeElement = event.data.element;
let propertyPathIdentifier = this._propertyPathIdentifierForTreeElement(identifier, treeElement);
if (!propertyPathIdentifier)
return;
if (WI.ScopeChainDetailsSidebarPanel._autoExpandProperties.has(propertyPathIdentifier))
treeElement.expand();
}
_treeElementDisclosureDidChange(identifier, event)
{
let treeElement = event.data.element;
let propertyPathIdentifier = this._propertyPathIdentifierForTreeElement(identifier, treeElement);
if (!propertyPathIdentifier)
return;
if (treeElement.expanded)
WI.ScopeChainDetailsSidebarPanel._autoExpandProperties.add(propertyPathIdentifier);
else
WI.ScopeChainDetailsSidebarPanel._autoExpandProperties.delete(propertyPathIdentifier);
}
_updateWatchExpressionsNavigationBar()
{
let enabled = this._watchExpressionsSetting.value.length;
this._refreshAllWatchExpressionButton.enabled = enabled;
this._clearAllWatchExpressionButton.enabled = enabled;
}
};
WI.ScopeChainDetailsSidebarPanel._autoExpandProperties = new Set;
WI.ScopeChainDetailsSidebarPanel.WatchExpressionsObjectGroupName = "watch-expressions";