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gecko/browser/devtools/highlighter/inspector.jsm

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Mozilla Inspector Module.
*
* The Initial Developer of the Original Code is
* The Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Rob Campbell <rcampbell@mozilla.com> (original author)
* Mihai Șucan <mihai.sucan@gmail.com>
* Julian Viereck <jviereck@mozilla.com>
* Paul Rouget <paul@mozilla.com>
* Kyle Simpson <ksimpson@mozilla.com>
* Johan Charlez <johan.charlez@gmail.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
const Cu = Components.utils;
const Ci = Components.interfaces;
const Cr = Components.results;
var EXPORTED_SYMBOLS = ["InspectorUI"];
Cu.import("resource://gre/modules/Services.jsm");
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
Cu.import("resource:///modules/TreePanel.jsm");
Cu.import("resource:///modules/devtools/CssRuleView.jsm");
const INSPECTOR_INVISIBLE_ELEMENTS = {
"head": true,
"base": true,
"basefont": true,
"isindex": true,
"link": true,
"meta": true,
"script": true,
"style": true,
"title": true,
};
// Inspector notifications dispatched through the nsIObserverService.
const INSPECTOR_NOTIFICATIONS = {
// Fires once the Inspector highlights an element in the page.
HIGHLIGHTING: "inspector-highlighting",
// Fires once the Inspector stops highlighting any element.
UNHIGHLIGHTING: "inspector-unhighlighting",
// Fires once the Inspector completes the initialization and opens up on
// screen.
OPENED: "inspector-opened",
// Fires once the Inspector is closed.
CLOSED: "inspector-closed",
// Fires when the Inspector is reopened after tab-switch.
STATE_RESTORED: "inspector-state-restored",
// Fires when the Tree Panel is opened and initialized.
TREEPANELREADY: "inspector-treepanel-ready",
// Fires when the CSS Rule View is opened and initialized.
RULEVIEWREADY: "inspector-ruleview-ready",
// Event notifications for the attribute-value editor
EDITOR_OPENED: "inspector-editor-opened",
EDITOR_CLOSED: "inspector-editor-closed",
EDITOR_SAVED: "inspector-editor-saved",
};
///////////////////////////////////////////////////////////////////////////
//// Highlighter
/**
* A highlighter mechanism.
*
* The highlighter is built dynamically once the Inspector is invoked:
* <stack id="highlighter-container">
* <vbox id="highlighter-veil-container">...</vbox>
* <box id="highlighter-controls>...</vbox>
* </stack>
*
* @param object aInspector
* The InspectorUI instance.
*/
function Highlighter(aInspector)
{
this.IUI = aInspector;
this._init();
}
Highlighter.prototype = {
_init: function Highlighter__init()
{
this.browser = this.IUI.browser;
this.chromeDoc = this.IUI.chromeDoc;
let stack = this.browser.parentNode;
this.win = this.browser.contentWindow;
this._highlighting = false;
this.highlighterContainer = this.chromeDoc.createElement("stack");
this.highlighterContainer.id = "highlighter-container";
this.veilContainer = this.chromeDoc.createElement("vbox");
this.veilContainer.id = "highlighter-veil-container";
// The controlsBox will host the different interactive
// elements of the highlighter (buttons, toolbars, ...).
let controlsBox = this.chromeDoc.createElement("box");
controlsBox.id = "highlighter-controls";
this.highlighterContainer.appendChild(this.veilContainer);
this.highlighterContainer.appendChild(controlsBox);
stack.appendChild(this.highlighterContainer);
// The veil will make the whole page darker except
// for the region of the selected box.
this.buildVeil(this.veilContainer);
this.buildInfobar(controlsBox);
this.browser.addEventListener("resize", this, true);
this.browser.addEventListener("scroll", this, true);
this.handleResize();
},
/**
* Build the veil:
*
* <vbox id="highlighter-veil-container">
* <box id="highlighter-veil-topbox" class="highlighter-veil"/>
* <hbox id="highlighter-veil-middlebox">
* <box id="highlighter-veil-leftbox" class="highlighter-veil"/>
* <box id="highlighter-veil-transparentbox"/>
* <box id="highlighter-veil-rightbox" class="highlighter-veil"/>
* </hbox>
* <box id="highlighter-veil-bottombox" class="highlighter-veil"/>
* </vbox>
*
* @param nsIDOMElement aParent
* The container of the veil boxes.
*/
buildVeil: function Highlighter_buildVeil(aParent)
{
// We will need to resize these boxes to surround a node.
// See highlightRectangle().
this.veilTopBox = this.chromeDoc.createElement("box");
this.veilTopBox.id = "highlighter-veil-topbox";
this.veilTopBox.className = "highlighter-veil";
this.veilMiddleBox = this.chromeDoc.createElement("hbox");
this.veilMiddleBox.id = "highlighter-veil-middlebox";
this.veilLeftBox = this.chromeDoc.createElement("box");
this.veilLeftBox.id = "highlighter-veil-leftbox";
this.veilLeftBox.className = "highlighter-veil";
this.veilTransparentBox = this.chromeDoc.createElement("box");
this.veilTransparentBox.id = "highlighter-veil-transparentbox";
// We don't need any references to veilRightBox and veilBottomBox.
// These boxes are automatically resized (flex=1)
let veilRightBox = this.chromeDoc.createElement("box");
veilRightBox.id = "highlighter-veil-rightbox";
veilRightBox.className = "highlighter-veil";
let veilBottomBox = this.chromeDoc.createElement("box");
veilBottomBox.id = "highlighter-veil-bottombox";
veilBottomBox.className = "highlighter-veil";
this.veilMiddleBox.appendChild(this.veilLeftBox);
this.veilMiddleBox.appendChild(this.veilTransparentBox);
this.veilMiddleBox.appendChild(veilRightBox);
aParent.appendChild(this.veilTopBox);
aParent.appendChild(this.veilMiddleBox);
aParent.appendChild(veilBottomBox);
},
/**
* Build the node Infobar.
*
* <box id="highlighter-nodeinfobar-container">
* <box id="Highlighter-nodeinfobar-arrow-top"/>
* <vbox id="highlighter-nodeinfobar">
* <label id="highlighter-nodeinfobar-tagname"/>
* <label id="highlighter-nodeinfobar-id"/>
* <vbox id="highlighter-nodeinfobar-classes"/>
* </vbox>
* <box id="Highlighter-nodeinfobar-arrow-bottom"/>
* </box>
*
* @param nsIDOMElement aParent
* The container of the infobar.
*/
buildInfobar: function Highlighter_buildInfobar(aParent)
{
let container = this.chromeDoc.createElement("box");
container.id = "highlighter-nodeinfobar-container";
container.setAttribute("position", "top");
container.setAttribute("disabled", "true");
let nodeInfobar = this.chromeDoc.createElement("hbox");
nodeInfobar.id = "highlighter-nodeinfobar";
let arrowBoxTop = this.chromeDoc.createElement("box");
arrowBoxTop.className = "highlighter-nodeinfobar-arrow";
arrowBoxTop.id = "highlighter-nodeinfobar-arrow-top";
let arrowBoxBottom = this.chromeDoc.createElement("box");
arrowBoxBottom.className = "highlighter-nodeinfobar-arrow";
arrowBoxBottom.id = "highlighter-nodeinfobar-arrow-bottom";
let tagNameLabel = this.chromeDoc.createElement("label");
tagNameLabel.id = "highlighter-nodeinfobar-tagname";
tagNameLabel.className = "plain";
let idLabel = this.chromeDoc.createElement("label");
idLabel.id = "highlighter-nodeinfobar-id";
idLabel.className = "plain";
let classesBox = this.chromeDoc.createElement("hbox");
classesBox.id = "highlighter-nodeinfobar-classes";
nodeInfobar.appendChild(tagNameLabel);
nodeInfobar.appendChild(idLabel);
nodeInfobar.appendChild(classesBox);
container.appendChild(arrowBoxTop);
container.appendChild(nodeInfobar);
container.appendChild(arrowBoxBottom);
aParent.appendChild(container);
let barHeight = container.getBoundingClientRect().height;
this.nodeInfo = {
tagNameLabel: tagNameLabel,
idLabel: idLabel,
classesBox: classesBox,
container: container,
barHeight: barHeight,
};
},
/**
* Destroy the nodes.
*/
destroy: function Highlighter_destroy()
{
this.browser.removeEventListener("scroll", this, true);
this.browser.removeEventListener("resize", this, true);
this.boundCloseEventHandler = null;
this._contentRect = null;
this._highlightRect = null;
this._highlighting = false;
this.veilTopBox = null;
this.veilLeftBox = null;
this.veilMiddleBox = null;
this.veilTransparentBox = null;
this.veilContainer = null;
this.node = null;
this.nodeInfo = null;
this.highlighterContainer.parentNode.removeChild(this.highlighterContainer);
this.highlighterContainer = null;
this.win = null
this.browser = null;
this.chromeDoc = null;
this.IUI = null;
},
/**
* Is the highlighter highlighting? Public method for querying the state
* of the highlighter.
*/
get isHighlighting() {
return this._highlighting;
},
/**
* Highlight this.node, unhilighting first if necessary.
*
* @param boolean aScroll
* Boolean determining whether to scroll or not.
*/
highlight: function Highlighter_highlight(aScroll)
{
let rect = null;
if (this.node && this.isNodeHighlightable(this.node)) {
if (aScroll) {
this.node.scrollIntoView();
}
let clientRect = this.node.getBoundingClientRect();
// Go up in the tree of frames to determine the correct rectangle.
// clientRect is read-only, we need to be able to change properties.
rect = {top: clientRect.top,
left: clientRect.left,
width: clientRect.width,
height: clientRect.height};
let frameWin = this.node.ownerDocument.defaultView;
// We iterate through all the parent windows.
while (true) {
// Does the selection overflow on the right of its window?
let diffx = frameWin.innerWidth - (rect.left + rect.width);
if (diffx < 0) {
rect.width += diffx;
}
// Does the selection overflow on the bottom of its window?
let diffy = frameWin.innerHeight - (rect.top + rect.height);
if (diffy < 0) {
rect.height += diffy;
}
// Does the selection overflow on the left of its window?
if (rect.left < 0) {
rect.width += rect.left;
rect.left = 0;
}
// Does the selection overflow on the top of its window?
if (rect.top < 0) {
rect.height += rect.top;
rect.top = 0;
}
// Selection has been clipped to fit in its own window.
// Are we in the top-level window?
if (frameWin.parent === frameWin || !frameWin.frameElement) {
break;
}
// We are in an iframe.
// We take into account the parent iframe position and its
// offset (borders and padding).
let frameRect = frameWin.frameElement.getBoundingClientRect();
let [offsetTop, offsetLeft] =
this.IUI.getIframeContentOffset(frameWin.frameElement);
rect.top += frameRect.top + offsetTop;
rect.left += frameRect.left + offsetLeft;
frameWin = frameWin.parent;
}
}
this.highlightRectangle(rect);
this.moveInfobar();
if (this._highlighting) {
Services.obs.notifyObservers(null,
INSPECTOR_NOTIFICATIONS.HIGHLIGHTING, null);
}
},
/**
* Highlight the given node.
*
* @param nsIDOMNode aNode
* a DOM element to be highlighted
* @param object aParams
* extra parameters object
*/
highlightNode: function Highlighter_highlightNode(aNode, aParams)
{
this.node = aNode;
this.updateInfobar();
this.highlight(aParams && aParams.scroll);
},
/**
* Highlight a rectangular region.
*
* @param object aRect
* The rectangle region to highlight.
* @returns boolean
* True if the rectangle was highlighted, false otherwise.
*/
highlightRectangle: function Highlighter_highlightRectangle(aRect)
{
if (!aRect) {
this.unhighlight();
return;
}
let oldRect = this._contentRect;
if (oldRect && aRect.top == oldRect.top && aRect.left == oldRect.left &&
aRect.width == oldRect.width && aRect.height == oldRect.height) {
return this._highlighting; // same rectangle
}
// get page zoom factor, if any
let zoom =
this.win.QueryInterface(Components.interfaces.nsIInterfaceRequestor)
.getInterface(Components.interfaces.nsIDOMWindowUtils)
.screenPixelsPerCSSPixel;
// adjust rect for zoom scaling
let aRectScaled = {};
for (let prop in aRect) {
aRectScaled[prop] = aRect[prop] * zoom;
}
if (aRectScaled.left >= 0 && aRectScaled.top >= 0 &&
aRectScaled.width > 0 && aRectScaled.height > 0) {
this.veilTransparentBox.style.visibility = "visible";
// The bottom div and the right div are flexibles (flex=1).
// We don't need to resize them.
this.veilTopBox.style.height = aRectScaled.top + "px";
this.veilLeftBox.style.width = aRectScaled.left + "px";
this.veilMiddleBox.style.height = aRectScaled.height + "px";
this.veilTransparentBox.style.width = aRectScaled.width + "px";
this._highlighting = true;
} else {
this.unhighlight();
}
this._contentRect = aRect; // save orig (non-scaled) rect
this._highlightRect = aRectScaled; // and save the scaled rect.
return this._highlighting;
},
/**
* Clear the highlighter surface.
*/
unhighlight: function Highlighter_unhighlight()
{
this._highlighting = false;
this.veilMiddleBox.style.height = 0;
this.veilTransparentBox.style.width = 0;
this.veilTransparentBox.style.visibility = "hidden";
Services.obs.notifyObservers(null,
INSPECTOR_NOTIFICATIONS.UNHIGHLIGHTING, null);
},
/**
* Update node information (tagName#id.class)
*/
updateInfobar: function Highlighter_updateInfobar()
{
// Tag name
this.nodeInfo.tagNameLabel.textContent = this.node.tagName;
// ID
this.nodeInfo.idLabel.textContent = this.node.id;
// Classes
let classes = this.nodeInfo.classesBox;
while (classes.hasChildNodes()) {
classes.removeChild(classes.firstChild);
}
if (this.node.className) {
let fragment = this.chromeDoc.createDocumentFragment();
for (let i = 0; i < this.node.classList.length; i++) {
let classLabel = this.chromeDoc.createElement("label");
classLabel.className = "highlighter-nodeinfobar-class plain";
classLabel.textContent = this.node.classList[i];
fragment.appendChild(classLabel);
}
classes.appendChild(fragment);
}
},
/**
* Move the Infobar to the right place in the highlighter.
*/
moveInfobar: function Highlighter_moveInfobar()
{
let rect = this._highlightRect;
if (rect && this._highlighting) {
this.nodeInfo.container.removeAttribute("disabled");
// Can the bar be above the node?
if (rect.top < this.nodeInfo.barHeight) {
// No. Can we move the toolbar under the node?
if (rect.top + rect.height +
this.nodeInfo.barHeight > this.win.innerHeight) {
// No. Let's move it inside.
this.nodeInfo.container.style.top = rect.top + "px";
this.nodeInfo.container.setAttribute("position", "overlap");
} else {
// Yes. Let's move it under the node.
this.nodeInfo.container.style.top = rect.top + rect.height + "px";
this.nodeInfo.container.setAttribute("position", "bottom");
}
} else {
// Yes. Let's move it on top of the node.
this.nodeInfo.container.style.top =
rect.top - this.nodeInfo.barHeight + "px";
this.nodeInfo.container.setAttribute("position", "top");
}
let barWidth = this.nodeInfo.container.getBoundingClientRect().width;
let left = rect.left + rect.width / 2 - barWidth / 2;
// Make sure the whole infobar is visible
if (left < 0) {
left = 0;
this.nodeInfo.container.setAttribute("hide-arrow", "true");
} else {
if (left + barWidth > this.win.innerWidth) {
left = this.win.innerWidth - barWidth;
this.nodeInfo.container.setAttribute("hide-arrow", "true");
} else {
this.nodeInfo.container.removeAttribute("hide-arrow");
}
}
this.nodeInfo.container.style.left = left + "px";
} else {
this.nodeInfo.container.style.left = "0";
this.nodeInfo.container.style.top = "0";
this.nodeInfo.container.setAttribute("position", "top");
this.nodeInfo.container.setAttribute("hide-arrow", "true");
}
},
/**
* Return the midpoint of a line from pointA to pointB.
*
* @param object aPointA
* An object with x and y properties.
* @param object aPointB
* An object with x and y properties.
* @returns object
* An object with x and y properties.
*/
midPoint: function Highlighter_midPoint(aPointA, aPointB)
{
let pointC = { };
pointC.x = (aPointB.x - aPointA.x) / 2 + aPointA.x;
pointC.y = (aPointB.y - aPointA.y) / 2 + aPointA.y;
return pointC;
},
/**
* Return the node under the highlighter rectangle. Useful for testing.
* Calculation based on midpoint of diagonal from top left to bottom right
* of panel.
*
* @returns nsIDOMNode|null
* Returns the node under the current highlighter rectangle. Null is
* returned if there is no node highlighted.
*/
get highlitNode()
{
// Not highlighting? Bail.
if (!this._highlighting || !this._contentRect) {
return null;
}
let a = {
x: this._contentRect.left,
y: this._contentRect.top
};
let b = {
x: a.x + this._contentRect.width,
y: a.y + this._contentRect.height
};
// Get midpoint of diagonal line.
let midpoint = this.midPoint(a, b);
return this.IUI.elementFromPoint(this.win.document, midpoint.x,
midpoint.y);
},
/**
* Is the specified node highlightable?
*
* @param nsIDOMNode aNode
* the DOM element in question
* @returns boolean
* True if the node is highlightable or false otherwise.
*/
isNodeHighlightable: function Highlighter_isNodeHighlightable(aNode)
{
if (aNode.nodeType != aNode.ELEMENT_NODE) {
return false;
}
let nodeName = aNode.nodeName.toLowerCase();
return !INSPECTOR_INVISIBLE_ELEMENTS[nodeName];
},
/////////////////////////////////////////////////////////////////////////
//// Event Handling
attachInspectListeners: function Highlighter_attachInspectListeners()
{
this.browser.addEventListener("mousemove", this, true);
this.browser.addEventListener("click", this, true);
this.browser.addEventListener("dblclick", this, true);
this.browser.addEventListener("mousedown", this, true);
this.browser.addEventListener("mouseup", this, true);
},
detachInspectListeners: function Highlighter_detachInspectListeners()
{
this.browser.removeEventListener("mousemove", this, true);
this.browser.removeEventListener("click", this, true);
this.browser.removeEventListener("dblclick", this, true);
this.browser.removeEventListener("mousedown", this, true);
this.browser.removeEventListener("mouseup", this, true);
},
/**
* Generic event handler.
*
* @param nsIDOMEvent aEvent
* The DOM event object.
*/
handleEvent: function Highlighter_handleEvent(aEvent)
{
switch (aEvent.type) {
case "click":
this.handleClick(aEvent);
break;
case "mousemove":
this.handleMouseMove(aEvent);
break;
case "resize":
this.handleResize(aEvent);
break;
case "dblclick":
case "mousedown":
case "mouseup":
aEvent.stopPropagation();
aEvent.preventDefault();
break;
case "scroll":
this.highlight();
break;
}
},
/**
* Handle clicks.
*
* @param nsIDOMEvent aEvent
* The DOM event.
*/
handleClick: function Highlighter_handleClick(aEvent)
{
// Stop inspection when the user clicks on a node.
if (aEvent.button == 0) {
let win = aEvent.target.ownerDocument.defaultView;
this.IUI.stopInspecting();
win.focus();
}
aEvent.preventDefault();
aEvent.stopPropagation();
},
/**
* Handle mousemoves in panel when InspectorUI.inspecting is true.
*
* @param nsiDOMEvent aEvent
* The MouseEvent triggering the method.
*/
handleMouseMove: function Highlighter_handleMouseMove(aEvent)
{
let element = this.IUI.elementFromPoint(aEvent.target.ownerDocument,
aEvent.clientX, aEvent.clientY);
if (element && element != this.node) {
this.IUI.inspectNode(element);
}
},
/**
* Handle window resize events.
*/
handleResize: function Highlighter_handleResize()
{
this.highlight();
},
};
///////////////////////////////////////////////////////////////////////////
//// InspectorUI
/**
* Main controller class for the Inspector.
*
* @constructor
* @param nsIDOMWindow aWindow
* The chrome window for which the Inspector instance is created.
*/
function InspectorUI(aWindow)
{
this.chromeWin = aWindow;
this.chromeDoc = aWindow.document;
this.tabbrowser = aWindow.gBrowser;
this.tools = {};
this.toolEvents = {};
this.store = new InspectorStore();
this.INSPECTOR_NOTIFICATIONS = INSPECTOR_NOTIFICATIONS;
}
InspectorUI.prototype = {
browser: null,
tools: null,
toolEvents: null,
inspecting: false,
treePanelEnabled: true,
ruleViewEnabled: true,
isDirty: false,
store: null,
/**
* Toggle the inspector interface elements on or off.
*
* @param aEvent
* The event that requested the UI change. Toolbar button or menu.
*/
toggleInspectorUI: function IUI_toggleInspectorUI(aEvent)
{
if (this.isInspectorOpen) {
this.closeInspectorUI();
} else {
this.openInspectorUI();
}
},
/**
* Show the Sidebar.
*/
showSidebar: function IUI_showSidebar()
{
this.sidebarBox.removeAttribute("hidden");
this.sidebarSplitter.removeAttribute("hidden");
this.stylingButton.checked = true;
// Activate the first tool in the sidebar, only if none previously-
// selected. We'll want to do a followup to remember selected tool-states.
if (!Array.some(this.sidebarToolbar.children,
function(btn) btn.hasAttribute("checked"))) {
let firstButtonId = this.getToolbarButtonId(this.sidebarTools[0].id);
this.chromeDoc.getElementById(firstButtonId).click();
}
},
/**
* Hide the Sidebar.
*/
hideSidebar: function IUI_hideSidebar()
{
this.sidebarBox.setAttribute("hidden", "true");
this.sidebarSplitter.setAttribute("hidden", "true");
this.stylingButton.checked = false;
},
/**
* Show or hide the sidebar. Called from the Styling button on the
* highlighter toolbar.
*/
toggleSidebar: function IUI_toggleSidebar()
{
if (!this.isSidebarOpen) {
this.showSidebar();
} else {
this.hideSidebar();
}
},
/**
* Getter to test if the Sidebar is open or not.
*/
get isSidebarOpen()
{
return this.stylingButton.checked &&
!this.sidebarBox.hidden &&
!this.sidebarSplitter.hidden;
},
/**
* Toggle the status of the inspector, starting or stopping it. Invoked
* from the toolbar's Inspect button.
*/
toggleInspection: function IUI_toggleInspection()
{
if (this.inspecting) {
this.stopInspecting();
} else {
this.startInspecting();
}
},
/**
* Is the inspector UI open? Simply check if the toolbar is visible or not.
*
* @returns boolean
*/
get isInspectorOpen()
{
return this.toolbar && !this.toolbar.hidden && this.highlighter;
},
/**
* Return the default selection element for the inspected document.
*/
get defaultSelection()
{
let doc = this.win.document;
return doc.documentElement ? doc.documentElement.lastElementChild : null;
},
/**
* Open inspector UI and HTML tree. Add listeners for document scrolling,
* resize, tabContainer.TabSelect and others. If a node is provided, then
* start inspecting it.
*
* @param [optional] aNode
* The node to inspect.
*/
openInspectorUI: function IUI_openInspectorUI(aNode)
{
// InspectorUI is already up and running. Lock a node if asked (via context).
if (this.isInspectorOpen && aNode) {
this.inspectNode(aNode);
this.stopInspecting();
return;
}
// Observer used to inspect the specified element from content after the
// inspector UI has been opened (via the content context menu).
function inspectObserver(aElement) {
Services.obs.removeObserver(boundInspectObserver,
INSPECTOR_NOTIFICATIONS.OPENED,
false);
this.inspectNode(aElement);
this.stopInspecting();
};
var boundInspectObserver = inspectObserver.bind(this, aNode);
if (aNode) {
// Add the observer to inspect the node after initialization finishes.
Services.obs.addObserver(boundInspectObserver,
INSPECTOR_NOTIFICATIONS.OPENED,
false);
}
// Start initialization.
this.browser = this.tabbrowser.selectedBrowser;
this.win = this.browser.contentWindow;
this.winID = this.getWindowID(this.win);
this.toolbar = this.chromeDoc.getElementById("inspector-toolbar");
this.inspectMenuitem = this.chromeDoc.getElementById("Tools:Inspect");
this.inspectToolbutton =
this.chromeDoc.getElementById("inspector-inspect-toolbutton");
this.initTools();
if (this.treePanelEnabled) {
this.treePanel = new TreePanel(this.chromeWin, this);
}
if (Services.prefs.getBoolPref("devtools.ruleview.enabled") &&
!this.toolRegistered("ruleview")) {
this.registerRuleView();
}
if (Services.prefs.getBoolPref("devtools.styleinspector.enabled") &&
!this.toolRegistered("styleinspector")) {
this.stylePanel = new StyleInspector(this.chromeWin, this);
}
this.toolbar.hidden = false;
this.inspectMenuitem.setAttribute("checked", true);
// initialize the HTML Breadcrumbs
this.breadcrumbs = new HTMLBreadcrumbs(this);
this.isDirty = false;
this.progressListener = new InspectorProgressListener(this);
// initialize the highlighter
this.initializeHighlighter();
},
/**
* Register the Rule View in the Sidebar.
*/
registerRuleView: function IUI_registerRuleView()
{
let isOpen = this.isRuleViewOpen.bind(this);
this.ruleViewObject = {
id: "ruleview",
label: this.strings.GetStringFromName("ruleView.label"),
tooltiptext: this.strings.GetStringFromName("ruleView.tooltiptext"),
accesskey: this.strings.GetStringFromName("ruleView.accesskey"),
context: this,
get isOpen() isOpen(),
show: this.openRuleView,
hide: this.closeRuleView,
onSelect: this.selectInRuleView,
panel: null,
unregister: this.destroyRuleView,
sidebar: true,
};
this.registerTool(this.ruleViewObject);
},
/**
* Register and initialize any included tools.
*/
initTools: function IUI_initTools()
{
// Extras go here.
},
/**
* Initialize highlighter.
*/
initializeHighlighter: function IUI_initializeHighlighter()
{
this.highlighter = new Highlighter(this);
this.highlighterReady();
},
/**
* Initialize the InspectorStore.
*/
initializeStore: function IUI_initializeStore()
{
// First time opened, add the TabSelect listener
if (this.store.isEmpty()) {
this.tabbrowser.tabContainer.addEventListener("TabSelect", this, false);
}
// Has this windowID been inspected before?
if (this.store.hasID(this.winID)) {
let selectedNode = this.store.getValue(this.winID, "selectedNode");
if (selectedNode) {
this.inspectNode(selectedNode);
}
this.isDirty = this.store.getValue(this.winID, "isDirty");
} else {
// First time inspecting, set state to no selection + live inspection.
this.store.addStore(this.winID);
this.store.setValue(this.winID, "selectedNode", null);
this.store.setValue(this.winID, "inspecting", true);
this.store.setValue(this.winID, "isDirty", this.isDirty);
this.win.addEventListener("pagehide", this, true);
}
},
/**
* Close inspector UI and associated panels. Unhighlight and stop inspecting.
* Remove event listeners for document scrolling, resize,
* tabContainer.TabSelect and others.
*
* @param boolean aKeepStore
* Tells if you want the store associated to the current tab/window to
* be cleared or not. Set this to true to not clear the store, or false
* otherwise.
*/
closeInspectorUI: function IUI_closeInspectorUI(aKeepStore)
{
// if currently editing an attribute value, closing the
// highlighter/HTML panel dismisses the editor
if (this.treePanel && this.treePanel.editingContext)
this.treePanel.closeEditor();
if (this.closing || !this.win || !this.browser) {
return;
}
this.closing = true;
this.toolbar.hidden = true;
this.progressListener.destroy();
delete this.progressListener;
if (!aKeepStore) {
this.store.deleteStore(this.winID);
this.win.removeEventListener("pagehide", this, true);
} else {
// Update the store before closing.
if (this.selection) {
this.store.setValue(this.winID, "selectedNode",
this.selection);
}
this.store.setValue(this.winID, "inspecting", this.inspecting);
this.store.setValue(this.winID, "isDirty", this.isDirty);
}
if (this.store.isEmpty()) {
this.tabbrowser.tabContainer.removeEventListener("TabSelect", this, false);
}
this.stopInspecting();
this.browser.removeEventListener("keypress", this, true);
this.saveToolState(this.winID);
this.toolsDo(function IUI_toolsHide(aTool) {
this.unregisterTool(aTool);
}.bind(this));
// close the sidebar
this.hideSidebar();
if (this.highlighter) {
this.highlighter.highlighterContainer.removeEventListener("keypress",
this,
true);
this.highlighter.destroy();
this.highlighter = null;
}
if (this.breadcrumbs) {
this.breadcrumbs.destroy();
this.breadcrumbs = null;
}
this.inspectMenuitem.setAttribute("checked", false);
this.browser = this.win = null; // null out references to browser and window
this.winID = null;
this.selection = null;
this.closing = false;
this.isDirty = false;
delete this.treePanel;
delete this.stylePanel;
delete this.toolbar;
Services.obs.notifyObservers(null, INSPECTOR_NOTIFICATIONS.CLOSED, null);
},
/**
* Begin inspecting webpage, attach page event listeners, activate
* highlighter event listeners.
*/
startInspecting: function IUI_startInspecting()
{
// if currently editing an attribute value, starting
// "live inspection" mode closes the editor
if (this.treePanel && this.treePanel.editingContext)
this.treePanel.closeEditor();
this.inspectToolbutton.checked = true;
// Attach event listeners to content window and child windows to enable
// highlighting and click to stop inspection.
this.browser.addEventListener("keypress", this, true);
this.highlighter.highlighterContainer.addEventListener("keypress", this, true);
this.highlighter.attachInspectListeners();
this.inspecting = true;
this.toolsDim(true);
this.highlighter.veilContainer.removeAttribute("locked");
this.highlighter.nodeInfo.container.removeAttribute("locked");
},
/**
* Stop inspecting webpage, detach page listeners, disable highlighter
* event listeners.
* @param aPreventScroll
* Prevent scroll in the HTML tree?
*/
stopInspecting: function IUI_stopInspecting(aPreventScroll)
{
if (!this.inspecting) {
return;
}
this.inspectToolbutton.checked = false;
// Detach event listeners from content window and child windows to disable
// highlighting. We still want to be notified if the user presses "ESCAPE"
// to close the inspector, or "RETURN" to unlock the node, so we don't
// remove the "keypress" event until the highlighter is removed.
this.highlighter.detachInspectListeners();
this.inspecting = false;
this.toolsDim(false);
if (this.highlighter.node) {
this.select(this.highlighter.node, true, true, !aPreventScroll);
} else {
this.select(null, true, true);
}
this.highlighter.veilContainer.setAttribute("locked", true);
this.highlighter.nodeInfo.container.setAttribute("locked", true);
},
/**
* Select an object in the tree view.
* @param aNode
* node to inspect
* @param forceUpdate
* force an update?
* @param aScroll boolean
* scroll the tree panel?
*/
select: function IUI_select(aNode, forceUpdate, aScroll)
{
// if currently editing an attribute value, using the
// highlighter dismisses the editor
if (this.treePanel && this.treePanel.editingContext)
this.treePanel.closeEditor();
if (!aNode)
aNode = this.defaultSelection;
if (forceUpdate || aNode != this.selection) {
this.selection = aNode;
if (!this.inspecting) {
this.highlighter.highlightNode(this.selection);
}
}
this.breadcrumbs.update();
this.toolsSelect(aScroll);
},
/**
* Called when the highlighted node is changed by a tool.
*
* @param object aUpdater
* The tool that triggered the update (if any), that tool's
* onChanged will not be called.
*/
nodeChanged: function IUI_nodeChanged(aUpdater)
{
this.highlighter.highlight();
this.toolsOnChanged(aUpdater);
},
/////////////////////////////////////////////////////////////////////////
//// Event Handling
highlighterReady: function IUI_highlighterReady()
{
// Setup the InspectorStore or restore state
this.initializeStore();
if (this.store.getValue(this.winID, "inspecting")) {
this.startInspecting();
}
this.restoreToolState(this.winID);
this.win.focus();
Services.obs.notifyObservers({wrappedJSObject: this},
INSPECTOR_NOTIFICATIONS.OPENED, null);
},
/**
* Main callback handler for events.
*
* @param event
* The event to be handled.
*/
handleEvent: function IUI_handleEvent(event)
{
let winID = null;
let win = null;
let inspectorClosed = false;
switch (event.type) {
case "TabSelect":
winID = this.getWindowID(this.tabbrowser.selectedBrowser.contentWindow);
if (this.isInspectorOpen && winID != this.winID) {
this.closeInspectorUI(true);
inspectorClosed = true;
}
if (winID && this.store.hasID(winID)) {
if (inspectorClosed && this.closing) {
Services.obs.addObserver(function reopenInspectorForTab() {
Services.obs.removeObserver(reopenInspectorForTab,
INSPECTOR_NOTIFICATIONS.CLOSED, false);
this.openInspectorUI();
}.bind(this), INSPECTOR_NOTIFICATIONS.CLOSED, false);
} else {
this.openInspectorUI();
}
}
if (this.store.isEmpty()) {
this.tabbrowser.tabContainer.removeEventListener("TabSelect", this,
false);
}
break;
case "pagehide":
win = event.originalTarget.defaultView;
// Skip iframes/frames.
if (!win || win.frameElement || win.top != win) {
break;
}
win.removeEventListener(event.type, this, true);
winID = this.getWindowID(win);
if (winID && winID != this.winID) {
this.store.deleteStore(winID);
}
if (this.store.isEmpty()) {
this.tabbrowser.tabContainer.removeEventListener("TabSelect", this,
false);
}
break;
case "keypress":
switch (event.keyCode) {
case this.chromeWin.KeyEvent.DOM_VK_ESCAPE:
this.closeInspectorUI(false);
event.preventDefault();
event.stopPropagation();
break;
case this.chromeWin.KeyEvent.DOM_VK_RETURN:
this.toggleInspection();
event.preventDefault();
event.stopPropagation();
break;
case this.chromeWin.KeyEvent.DOM_VK_LEFT:
let node;
if (this.selection) {
node = this.selection.parentNode;
} else {
node = this.defaultSelection;
}
if (node && this.highlighter.isNodeHighlightable(node)) {
this.inspectNode(node, true);
}
event.preventDefault();
event.stopPropagation();
break;
case this.chromeWin.KeyEvent.DOM_VK_RIGHT:
if (this.selection) {
// Find the first child that is highlightable.
for (let i = 0; i < this.selection.childNodes.length; i++) {
node = this.selection.childNodes[i];
if (node && this.highlighter.isNodeHighlightable(node)) {
break;
}
}
} else {
node = this.defaultSelection;
}
if (node && this.highlighter.isNodeHighlightable(node)) {
this.inspectNode(node, true);
}
event.preventDefault();
event.stopPropagation();
break;
case this.chromeWin.KeyEvent.DOM_VK_UP:
if (this.selection) {
// Find a previous sibling that is highlightable.
node = this.selection.previousSibling;
while (node && !this.highlighter.isNodeHighlightable(node)) {
node = node.previousSibling;
}
} else {
node = this.defaultSelection;
}
if (node && this.highlighter.isNodeHighlightable(node)) {
this.inspectNode(node, true);
}
event.preventDefault();
event.stopPropagation();
break;
case this.chromeWin.KeyEvent.DOM_VK_DOWN:
if (this.selection) {
// Find a next sibling that is highlightable.
node = this.selection.nextSibling;
while (node && !this.highlighter.isNodeHighlightable(node)) {
node = node.nextSibling;
}
} else {
node = this.defaultSelection;
}
if (node && this.highlighter.isNodeHighlightable(node)) {
this.inspectNode(node, true);
}
event.preventDefault();
event.stopPropagation();
break;
}
break;
}
},
/////////////////////////////////////////////////////////////////////////
//// CssRuleView methods
/**
* Is the cssRuleView open?
*/
isRuleViewOpen: function IUI_isRuleViewOpen()
{
return this.isSidebarOpen && this.ruleButton.hasAttribute("checked") &&
(this.sidebarDeck.selectedPanel == this.getToolIframe(this.ruleViewObject));
},
/**
* Convenience getter to retrieve the Rule Button.
*/
get ruleButton()
{
return this.chromeDoc.getElementById(
this.getToolbarButtonId(this.ruleViewObject.id));
},
/**
* Open the CssRuleView.
*/
openRuleView: function IUI_openRuleView()
{
let iframe = this.getToolIframe(this.ruleViewObject);
if (iframe.getAttribute("src")) {
// We're already loading this tool, let it finish.
return;
}
let boundLoadListener = function() {
iframe.removeEventListener("load", boundLoadListener, true);
let doc = iframe.contentDocument;
let winID = this.winID;
let ruleViewStore = this.store.getValue(winID, "ruleView");
if (!ruleViewStore) {
ruleViewStore = {};
this.store.setValue(winID, "ruleView", ruleViewStore);
}
this.ruleView = new CssRuleView(doc, ruleViewStore);
this.boundRuleViewChanged = this.ruleViewChanged.bind(this);
this.ruleView.element.addEventListener("CssRuleViewChanged",
this.boundRuleViewChanged);
doc.documentElement.appendChild(this.ruleView.element);
this.ruleView.highlight(this.selection);
Services.obs.notifyObservers(null,
INSPECTOR_NOTIFICATIONS.RULEVIEWREADY, null);
}.bind(this);
iframe.addEventListener("load", boundLoadListener, true);
iframe.setAttribute("src", "chrome://browser/content/devtools/cssruleview.xul");
},
/**
* Stub to Close the CSS Rule View. Does nothing currently because the
* Rule View lives in the sidebar.
*/
closeRuleView: function IUI_closeRuleView()
{
// do nothing for now
},
/**
* Update the selected node in the Css Rule View.
* @param {nsIDOMnode} the selected node.
*/
selectInRuleView: function IUI_selectInRuleView(aNode)
{
if (this.ruleView)
this.ruleView.highlight(aNode);
},
ruleViewChanged: function IUI_ruleViewChanged()
{
this.isDirty = true;
this.nodeChanged(this.ruleViewObject);
},
/**
* Destroy the rule view.
*/
destroyRuleView: function IUI_destroyRuleView()
{
let iframe = this.getToolIframe(this.ruleViewObject);
iframe.parentNode.removeChild(iframe);
if (this.ruleView) {
this.ruleView.element.removeEventListener("CssRuleViewChanged",
this.boundRuleViewChanged);
delete boundRuleViewChanged;
this.ruleView.clear();
delete this.ruleView;
}
},
/////////////////////////////////////////////////////////////////////////
//// Utility Methods
/**
* inspect the given node, highlighting it on the page and selecting the
* correct row in the tree panel
*
* @param aNode
* the element in the document to inspect
* @param aScroll
* force scroll?
*/
inspectNode: function IUI_inspectNode(aNode, aScroll)
{
this.select(aNode, true, true);
this.highlighter.highlightNode(aNode, { scroll: aScroll });
},
/**
* Find an element from the given coordinates. This method descends through
* frames to find the element the user clicked inside frames.
*
* @param DOMDocument aDocument the document to look into.
* @param integer aX
* @param integer aY
* @returns Node|null the element node found at the given coordinates.
*/
elementFromPoint: function IUI_elementFromPoint(aDocument, aX, aY)
{
let node = aDocument.elementFromPoint(aX, aY);
if (node && node.contentDocument) {
if (node instanceof Ci.nsIDOMHTMLIFrameElement) {
let rect = node.getBoundingClientRect();
// Gap between the iframe and its content window.
let [offsetTop, offsetLeft] = this.getIframeContentOffset(node);
aX -= rect.left + offsetLeft;
aY -= rect.top + offsetTop;
if (aX < 0 || aY < 0) {
// Didn't reach the content document, still over the iframe.
return node;
}
}
if (node instanceof Ci.nsIDOMHTMLIFrameElement ||
node instanceof Ci.nsIDOMHTMLFrameElement) {
let subnode = this.elementFromPoint(node.contentDocument, aX, aY);
if (subnode) {
node = subnode;
}
}
}
return node;
},
///////////////////////////////////////////////////////////////////////////
//// Utility functions
/**
* Returns iframe content offset (iframe border + padding).
* Note: this function shouldn't need to exist, had the platform provided a
* suitable API for determining the offset between the iframe's content and
* its bounding client rect. Bug 626359 should provide us with such an API.
*
* @param aIframe
* The iframe.
* @returns array [offsetTop, offsetLeft]
* offsetTop is the distance from the top of the iframe and the
* top of the content document.
* offsetLeft is the distance from the left of the iframe and the
* left of the content document.
*/
getIframeContentOffset: function IUI_getIframeContentOffset(aIframe)
{
let style = aIframe.contentWindow.getComputedStyle(aIframe, null);
let paddingTop = parseInt(style.getPropertyValue("padding-top"));
let paddingLeft = parseInt(style.getPropertyValue("padding-left"));
let borderTop = parseInt(style.getPropertyValue("border-top-width"));
let borderLeft = parseInt(style.getPropertyValue("border-left-width"));
return [borderTop + paddingTop, borderLeft + paddingLeft];
},
/**
* Retrieve the unique ID of a window object.
*
* @param nsIDOMWindow aWindow
* @returns integer ID
*/
getWindowID: function IUI_getWindowID(aWindow)
{
if (!aWindow) {
return null;
}
let util = {};
try {
util = aWindow.QueryInterface(Ci.nsIInterfaceRequestor).
getInterface(Ci.nsIDOMWindowUtils);
} catch (ex) { }
return util.currentInnerWindowID;
},
/**
* @param msg
* text message to send to the log
*/
_log: function LOG(msg)
{
Services.console.logStringMessage(msg);
},
/**
* Debugging function.
* @param msg
* text to show with the stack trace.
*/
_trace: function TRACE(msg)
{
this._log("TRACE: " + msg);
let frame = Components.stack.caller;
while (frame = frame.caller) {
if (frame.language == Ci.nsIProgrammingLanguage.JAVASCRIPT ||
frame.language == Ci.nsIProgrammingLanguage.JAVASCRIPT2) {
this._log("filename: " + frame.filename + " lineNumber: " + frame.lineNumber +
" functionName: " + frame.name);
}
}
this._log("END TRACE");
},
/**
* Get the toolbar button name for a given id string. Used by the
* registerTools API to retrieve a consistent name for toolbar buttons
* based on the ID of the tool.
* @param anId String
* id of the tool to be buttonized
* @returns String
*/
getToolbarButtonId: function IUI_createButtonId(anId)
{
return "inspector-" + anId + "-toolbutton";
},
/**
* Save a registered tool's callback for a specified event.
* @param aWidget xul:widget
* @param aEvent a DOM event name
* @param aCallback Function the click event handler for the button
*/
bindToolEvent: function IUI_bindToolEvent(aWidget, aEvent, aCallback)
{
this.toolEvents[aWidget.id + "_" + aEvent] = aCallback;
aWidget.addEventListener(aEvent, aCallback, false);
},
/**
* Register an external tool with the inspector.
*
* aRegObj = {
* id: "toolname",
* context: myTool,
* label: "Button or tab label",
* icon: "chrome://somepath.png",
* tooltiptext: "Button tooltip",
* accesskey: "S",
* isOpen: object.property, (getter) returning true if tool is open.
* onSelect: object.method,
* show: object.method, called to show the tool when button is pressed.
* hide: object.method, called to hide the tool when button is pressed.
* dim: object.method, called to disable a tool during highlighting.
* unregister: object.method, called when tool should be destroyed.
* panel: myTool.panel, set if tool is in a separate panel, null otherwise.
* sidebar: boolean, true if tool lives in sidebar tab.
* }
*
* @param aRegObj Object
* The Registration Object used to register this tool described
* above. The tool should cache this object for later deregistration.
*/
registerTool: function IUI_registerTool(aRegObj)
{
if (this.toolRegistered(aRegObj.id)) {
return;
}
this.tools[aRegObj.id] = aRegObj;
let buttonContainer = this.chromeDoc.getElementById("inspector-tools");
let btn;
// if this is a sidebar tool, create the sidebar features for it and bail.
if (aRegObj.sidebar) {
this.createSidebarTool(aRegObj);
return;
}
btn = this.chromeDoc.createElement("toolbarbutton");
let buttonId = this.getToolbarButtonId(aRegObj.id);
btn.setAttribute("id", buttonId);
btn.setAttribute("label", aRegObj.label);
btn.setAttribute("tooltiptext", aRegObj.tooltiptext);
btn.setAttribute("accesskey", aRegObj.accesskey);
btn.setAttribute("image", aRegObj.icon || "");
buttonContainer.insertBefore(btn, this.stylingButton);
this.bindToolEvent(btn, "click",
function IUI_toolButtonClick(aEvent) {
if (btn.checked) {
this.toolHide(aRegObj);
} else {
this.toolShow(aRegObj);
}
}.bind(this));
// if the tool has a panel, register the popuphiding event
if (aRegObj.panel) {
this.bindToolEvent(aRegObj.panel, "popuphiding",
function IUI_toolPanelHiding() {
btn.checked = false;
});
}
},
get sidebarBox()
{
return this.chromeDoc.getElementById("devtools-sidebar-box");
},
get sidebarToolbar()
{
return this.chromeDoc.getElementById("devtools-sidebar-toolbar");
},
get sidebarDeck()
{
return this.chromeDoc.getElementById("devtools-sidebar-deck");
},
get sidebarSplitter()
{
return this.chromeDoc.getElementById("devtools-side-splitter");
},
get stylingButton()
{
return this.chromeDoc.getElementById("inspector-style-button");
},
/**
* Creates a tab and tabpanel for our tool to reside in.
* @param {Object} aRegObj the Registration Object for our tool.
*/
createSidebarTool: function IUI_createSidebarTab(aRegObj)
{
// toolbutton elements
let btn = this.chromeDoc.createElement("toolbarbutton");
let buttonId = this.getToolbarButtonId(aRegObj.id);
btn.id = buttonId;
btn.setAttribute("label", aRegObj.label);
btn.setAttribute("tooltiptext", aRegObj.tooltiptext);
btn.setAttribute("accesskey", aRegObj.accesskey);
btn.setAttribute("image", aRegObj.icon || "");
btn.setAttribute("type", "radio");
btn.setAttribute("group", "sidebar-tools");
this.sidebarToolbar.appendChild(btn);
// create tool iframe
let iframe = this.chromeDoc.createElement("iframe");
iframe.id = "devtools-sidebar-iframe-" + aRegObj.id;
iframe.setAttribute("flex", "1");
this.sidebarDeck.appendChild(iframe);
// wire up button to show the iframe
this.bindToolEvent(btn, "click", function showIframe() {
this.toolShow(aRegObj);
}.bind(this));
},
/**
* Return the registered object's iframe.
* @param aRegObj see registerTool function.
* @return iframe or null
*/
getToolIframe: function IUI_getToolIFrame(aRegObj)
{
return this.chromeDoc.getElementById("devtools-sidebar-iframe-" + aRegObj.id);
},
/**
* Show the specified tool.
* @param aTool Object (see comment for IUI_registerTool)
*/
toolShow: function IUI_toolShow(aTool)
{
let btn = this.chromeDoc.getElementById(this.getToolbarButtonId(aTool.id));
btn.setAttribute("checked", "true");
if (aTool.sidebar) {
this.sidebarDeck.selectedPanel = this.getToolIframe(aTool);
this.sidebarTools.forEach(function(other) {
if (other != aTool)
this.chromeDoc.getElementById(
this.getToolbarButtonId(other.id)).removeAttribute("checked");
}.bind(this));
}
aTool.show.call(aTool.context, this.selection);
},
/**
* Hide the specified tool.
* @param aTool Object (see comment for IUI_registerTool)
*/
toolHide: function IUI_toolHide(aTool)
{
aTool.hide.call(aTool.context);
let btn = this.chromeDoc.getElementById(this.getToolbarButtonId(aTool.id));
btn.removeAttribute("checked");
},
/**
* Unregister the events associated with the registered tool's widget.
* @param aWidget XUL:widget (toolbarbutton|panel).
* @param aEvent a DOM event.
*/
unbindToolEvent: function IUI_unbindToolEvent(aWidget, aEvent)
{
let toolEvent = aWidget.id + "_" + aEvent;
aWidget.removeEventListener(aEvent, this.toolEvents[toolEvent], false);
delete this.toolEvents[toolEvent]
},
/**
* Unregister the registered tool, unbinding click events for the buttons
* and showing and hiding events for the panel.
* @param aRegObj Object
* The registration object used to register the tool.
*/
unregisterTool: function IUI_unregisterTool(aRegObj)
{
// if this is a sidebar tool, use the sidebar unregistration method
if (aRegObj.sidebar) {
this.unregisterSidebarTool(aRegObj);
return;
}
let button = this.chromeDoc.getElementById(this.getToolbarButtonId(aRegObj.id));
let buttonContainer = this.chromeDoc.getElementById("inspector-tools");
// unbind click events on button
this.unbindToolEvent(button, "click");
// unbind panel popuphiding events if present.
if (aRegObj.panel)
this.unbindToolEvent(aRegObj.panel, "popuphiding");
// remove the button from its container
buttonContainer.removeChild(button);
// call unregister callback and remove from collection
if (aRegObj.unregister)
aRegObj.unregister.call(aRegObj.context);
delete this.tools[aRegObj.id];
},
/**
* Unregister the registered sidebar tool, unbinding click events for the
* button.
* @param aRegObj Object
* The registration object used to register the tool.
*/
unregisterSidebarTool: function IUI_unregisterSidebarTool(aRegObj)
{
// unbind tool button click event
let buttonId = this.getToolbarButtonId(aRegObj.id);
let btn = this.chromeDoc.getElementById(buttonId);
this.unbindToolEvent(btn, "click");
// remove sidebar buttons and tools
this.sidebarToolbar.removeChild(btn);
// call unregister callback and remove from collection, this also removes
// the iframe.
if (aRegObj.unregister)
aRegObj.unregister.call(aRegObj.context);
delete this.tools[aRegObj.id];
},
/**
* Save a list of open tools to the inspector store.
*
* @param aWinID The ID of the window used to save the associated tools
*/
saveToolState: function IUI_saveToolState(aWinID)
{
let openTools = {};
this.toolsDo(function IUI_toolsSetId(aTool) {
if (aTool.isOpen) {
openTools[aTool.id] = true;
}
});
this.store.setValue(aWinID, "openTools", openTools);
},
/**
* Restore tools previously save using saveToolState().
*
* @param aWinID The ID of the window to which the associated tools are to be
* restored.
*/
restoreToolState: function IUI_restoreToolState(aWinID)
{
let openTools = this.store.getValue(aWinID, "openTools");
let activeSidebarTool;
if (openTools) {
this.toolsDo(function IUI_toolsOnShow(aTool) {
if (aTool.id in openTools) {
if (aTool.sidebar && !this.isSidebarOpen) {
this.showSidebar();
activeSidebarTool = aTool;
}
this.toolShow(aTool);
}
}.bind(this));
this.sidebarTools.forEach(function(tool) {
if (tool != activeSidebarTool)
this.chromeDoc.getElementById(
this.getToolbarButtonId(tool.id)).removeAttribute("checked");
}.bind(this));
}
Services.obs.notifyObservers(null, INSPECTOR_NOTIFICATIONS.STATE_RESTORED, null);
},
/**
* For each tool in the tools collection select the current node that is
* selected in the highlighter
* @param aScroll boolean
* Do you want to scroll the treepanel?
*/
toolsSelect: function IUI_toolsSelect(aScroll)
{
let selection = this.selection;
this.toolsDo(function IUI_toolsOnSelect(aTool) {
if (aTool.isOpen) {
aTool.onSelect.call(aTool.context, selection, aScroll);
}
});
},
/**
* Dim or undim each tool in the tools collection
* @param aState true = dim, false = undim
*/
toolsDim: function IUI_toolsDim(aState)
{
this.toolsDo(function IUI_toolsDim(aTool) {
if (aTool.isOpen && "dim" in aTool) {
aTool.dim.call(aTool.context, aState);
}
});
},
/**
* Notify registered tools of changes to the highlighted element.
*
* @param object aUpdater
* The tool that triggered the update (if any), that tool's
* onChanged will not be called.
*/
toolsOnChanged: function IUI_toolsChanged(aUpdater)
{
this.toolsDo(function IUI_toolsOnChanged(aTool) {
if (aTool.isOpen && ("onChanged" in aTool) && aTool != aUpdater) {
aTool.onChanged.call(aTool.context);
}
});
},
/**
* Loop through all registered tools and pass each into the provided function
* @param aFunction The function to which each tool is to be passed
*/
toolsDo: function IUI_toolsDo(aFunction)
{
for each (let tool in this.tools) {
aFunction(tool);
}
},
/**
* Convenience getter to retrieve only the sidebar tools.
*/
get sidebarTools()
{
let sidebarTools = [];
for each (let tool in this.tools)
if (tool.sidebar)
sidebarTools.push(tool);
return sidebarTools;
},
/**
* Check if a tool is registered?
* @param aId The id of the tool to check
*/
toolRegistered: function IUI_toolRegistered(aId)
{
return aId in this.tools;
},
/**
* Destroy the InspectorUI instance. This is called by the InspectorUI API
* "user", see BrowserShutdown() in browser.js.
*/
destroy: function IUI_destroy()
{
if (this.isInspectorOpen) {
this.closeInspectorUI();
}
delete this.store;
delete this.chromeDoc;
delete this.chromeWin;
delete this.tabbrowser;
},
};
/**
* The Inspector store is used for storing data specific to each tab window.
* @constructor
*/
function InspectorStore()
{
this.store = {};
}
InspectorStore.prototype = {
length: 0,
/**
* Check if there is any data recorded for any tab/window.
*
* @returns boolean True if there are no stores for any window/tab, or false
* otherwise.
*/
isEmpty: function IS_isEmpty()
{
return this.length == 0 ? true : false;
},
/**
* Add a new store.
*
* @param string aID The Store ID you want created.
* @returns boolean True if the store was added successfully, or false
* otherwise.
*/
addStore: function IS_addStore(aID)
{
let result = false;
if (!(aID in this.store)) {
this.store[aID] = {};
this.length++;
result = true;
}
return result;
},
/**
* Delete a store by ID.
*
* @param string aID The store ID you want deleted.
* @returns boolean True if the store was removed successfully, or false
* otherwise.
*/
deleteStore: function IS_deleteStore(aID)
{
let result = false;
if (aID in this.store) {
delete this.store[aID];
this.length--;
result = true;
}
return result;
},
/**
* Check store existence.
*
* @param string aID The store ID you want to check.
* @returns boolean True if the store ID is registered, or false otherwise.
*/
hasID: function IS_hasID(aID)
{
return (aID in this.store);
},
/**
* Retrieve a value from a store for a given key.
*
* @param string aID The store ID you want to read the value from.
* @param string aKey The key name of the value you want.
* @returns mixed the value associated to your store and key.
*/
getValue: function IS_getValue(aID, aKey)
{
if (!this.hasID(aID))
return null;
if (aKey in this.store[aID])
return this.store[aID][aKey];
return null;
},
/**
* Set a value for a given key and store.
*
* @param string aID The store ID where you want to store the value into.
* @param string aKey The key name for which you want to save the value.
* @param mixed aValue The value you want stored.
* @returns boolean True if the value was stored successfully, or false
* otherwise.
*/
setValue: function IS_setValue(aID, aKey, aValue)
{
let result = false;
if (aID in this.store) {
this.store[aID][aKey] = aValue;
result = true;
}
return result;
},
/**
* Delete a value for a given key and store.
*
* @param string aID The store ID where you want to store the value into.
* @param string aKey The key name for which you want to save the value.
* @returns boolean True if the value was removed successfully, or false
* otherwise.
*/
deleteValue: function IS_deleteValue(aID, aKey)
{
let result = false;
if (aID in this.store && aKey in this.store[aID]) {
delete this.store[aID][aKey];
result = true;
}
return result;
}
};
/**
* The InspectorProgressListener object is an nsIWebProgressListener which
* handles onStateChange events for the inspected browser. If the user makes
* changes to the web page and he tries to navigate away, he is prompted to
* confirm page navigation, such that he's given the chance to prevent the loss
* of edits.
*
* @constructor
* @param object aInspector
* InspectorUI instance object.
*/
function InspectorProgressListener(aInspector)
{
this.IUI = aInspector;
this.IUI.tabbrowser.addProgressListener(this);
}
InspectorProgressListener.prototype = {
onStateChange:
function IPL_onStateChange(aProgress, aRequest, aFlag, aStatus)
{
// Remove myself if the Inspector is no longer open.
if (!this.IUI.isInspectorOpen) {
this.destroy();
return;
}
let isStart = aFlag & Ci.nsIWebProgressListener.STATE_START;
let isDocument = aFlag & Ci.nsIWebProgressListener.STATE_IS_DOCUMENT;
let isNetwork = aFlag & Ci.nsIWebProgressListener.STATE_IS_NETWORK;
let isRequest = aFlag & Ci.nsIWebProgressListener.STATE_IS_REQUEST;
// Skip non-interesting states.
if (!isStart || !isDocument || !isRequest || !isNetwork) {
return;
}
// If the request is about to happen in a new window, we are not concerned
// about the request.
if (aProgress.DOMWindow != this.IUI.win) {
return;
}
if (this.IUI.isDirty) {
this.showNotification(aRequest);
} else {
this.IUI.closeInspectorUI();
}
},
/**
* Show an asynchronous notification which asks the user to confirm or cancel
* the page navigation request.
*
* @param nsIRequest aRequest
* The request initiated by the user or by the page itself.
* @returns void
*/
showNotification: function IPL_showNotification(aRequest)
{
aRequest.suspend();
let notificationBox = this.IUI.tabbrowser.getNotificationBox(this.IUI.browser);
let notification = notificationBox.
getNotificationWithValue("inspector-page-navigation");
if (notification) {
notificationBox.removeNotification(notification, true);
}
let cancelRequest = function onCancelRequest() {
if (aRequest) {
aRequest.cancel(Cr.NS_BINDING_ABORTED);
aRequest.resume(); // needed to allow the connection to be cancelled.
aRequest = null;
}
};
let eventCallback = function onNotificationCallback(aEvent) {
if (aEvent == "removed") {
cancelRequest();
}
};
let buttons = [
{
id: "inspector.confirmNavigationAway.buttonLeave",
label: this.IUI.strings.
GetStringFromName("confirmNavigationAway.buttonLeave"),
accessKey: this.IUI.strings.
GetStringFromName("confirmNavigationAway.buttonLeaveAccesskey"),
callback: function onButtonLeave() {
if (aRequest) {
aRequest.resume();
aRequest = null;
this.IUI.closeInspectorUI();
}
}.bind(this),
},
{
id: "inspector.confirmNavigationAway.buttonStay",
label: this.IUI.strings.
GetStringFromName("confirmNavigationAway.buttonStay"),
accessKey: this.IUI.strings.
GetStringFromName("confirmNavigationAway.buttonStayAccesskey"),
callback: cancelRequest
},
];
let message = this.IUI.strings.
GetStringFromName("confirmNavigationAway.message");
notification = notificationBox.appendNotification(message,
"inspector-page-navigation", "chrome://browser/skin/Info.png",
notificationBox.PRIORITY_WARNING_HIGH, buttons, eventCallback);
// Make sure this not a transient notification, to avoid the automatic
// transient notification removal.
notification.persistence = -1;
},
/**
* Destroy the progress listener instance.
*/
destroy: function IPL_destroy()
{
this.IUI.tabbrowser.removeProgressListener(this);
let notificationBox = this.IUI.tabbrowser.getNotificationBox(this.IUI.browser);
let notification = notificationBox.
getNotificationWithValue("inspector-page-navigation");
if (notification) {
notificationBox.removeNotification(notification, true);
}
delete this.IUI;
},
};
///////////////////////////////////////////////////////////////////////////
//// HTML Breadcrumbs
/**
* Display the ancestors of the current node and its children.
* Only one "branch" of children are displayed (only one line).
*
* Mechanism:
* . If no nodes displayed yet:
* then display the ancestor of the selected node and the selected node;
* else select the node;
* . If the selected node is the last node displayed, append its first (if any).
*
* @param object aInspector
* The InspectorUI instance.
*/
function HTMLBreadcrumbs(aInspector)
{
this.IUI = aInspector;
this.DOMHelpers = new DOMHelpers(this.IUI.win);
this._init();
}
HTMLBreadcrumbs.prototype = {
_init: function BC__init()
{
this.container = this.IUI.chromeDoc.getElementById("inspector-breadcrumbs");
this.container.addEventListener("mousedown", this, true);
// We will save a list of already displayed nodes in this array.
this.nodeHierarchy = [];
// Last selected node in nodeHierarchy.
this.currentIndex = -1;
// Siblings menu
this.menu = this.IUI.chromeDoc.createElement("menupopup");
this.menu.id = "inspector-breadcrumbs-menu";
let popupSet = this.IUI.chromeDoc.getElementById("mainPopupSet");
popupSet.appendChild(this.menu);
this.menu.addEventListener("popuphiding", (function() {
while (this.menu.hasChildNodes()) {
this.menu.removeChild(this.menu.firstChild);
}
let button = this.container.querySelector("button[siblings-menu-open]");
button.removeAttribute("siblings-menu-open");
}).bind(this), false);
},
/**
* Build a string that represents the node: tagName#id.class1.class2.
*
* @param aNode The node to pretty-print
* @returns a string
*/
prettyPrintNodeAsText: function BC_prettyPrintNodeText(aNode)
{
let text = aNode.tagName.toLowerCase();
if (aNode.id) {
text += "#" + aNode.id;
}
for (let i = 0; i < aNode.classList.length; i++) {
text += "." + aNode.classList[i];
}
return text;
},
/**
* Build <label>s that represent the node:
* <label class="inspector-breadcrumbs-tag">tagName</label>
* <label class="inspector-breadcrumbs-id">#id</label>
* <label class="inspector-breadcrumbs-classes">.class1.class2</label>
*
* @param aNode The node to pretty-print
* @returns a document fragment.
*/
prettyPrintNodeAsXUL: function BC_prettyPrintNodeXUL(aNode)
{
let fragment = this.IUI.chromeDoc.createDocumentFragment();
let tagLabel = this.IUI.chromeDoc.createElement("label");
tagLabel.className = "inspector-breadcrumbs-tag plain";
let idLabel = this.IUI.chromeDoc.createElement("label");
idLabel.className = "inspector-breadcrumbs-id plain";
let classesLabel = this.IUI.chromeDoc.createElement("label");
classesLabel.className = "inspector-breadcrumbs-classes plain";
tagLabel.textContent = aNode.tagName.toLowerCase();
idLabel.textContent = aNode.id ? ("#" + aNode.id) : "";
let classesText = "";
for (let i = 0; i < aNode.classList.length; i++) {
classesText += "." + aNode.classList[i];
}
classesLabel.textContent = classesText;
fragment.appendChild(tagLabel);
fragment.appendChild(idLabel);
fragment.appendChild(classesLabel);
return fragment;
},
/**
* Open the sibling menu.
*
* @param aButton the button representing the node.
* @param aNode the node we want the siblings from.
*/
openSiblingMenu: function BC_openSiblingMenu(aButton, aNode)
{
let title = this.IUI.chromeDoc.createElement("menuitem");
title.setAttribute("label",
this.IUI.strings.GetStringFromName("breadcrumbs.siblings"));
title.setAttribute("disabled", "true");
let separator = this.IUI.chromeDoc.createElement("menuseparator");
this.menu.appendChild(title);
this.menu.appendChild(separator);
let fragment = this.IUI.chromeDoc.createDocumentFragment();
let nodes = aNode.parentNode.childNodes;
for (let i = 0; i < nodes.length; i++) {
if (nodes[i].nodeType == aNode.ELEMENT_NODE) {
let item = this.IUI.chromeDoc.createElement("menuitem");
let inspector = this.IUI;
if (nodes[i] === aNode) {
item.setAttribute("disabled", "true");
item.setAttribute("checked", "true");
}
item.setAttribute("type", "radio");
item.setAttribute("label", this.prettyPrintNodeAsText(nodes[i]));
item.onmouseup = (function(aNode) {
return function() {
inspector.select(aNode, true, true);
}
})(nodes[i]);
fragment.appendChild(item);
}
}
this.menu.appendChild(fragment);
this.menu.openPopup(aButton, "before_start", 0, 0, true, false);
},
/**
* Generic event handler.
*
* @param nsIDOMEvent aEvent
* The DOM event object.
*/
handleEvent: function BC_handleEvent(aEvent)
{
if (aEvent.type == "mousedown") {
// on Click and Hold, open the Siblings menu
let timer;
let container = this.container;
let window = this.IUI.win;
function openMenu(aEvent) {
cancelHold();
let target = aEvent.originalTarget;
if (target.tagName == "button") {
target.onBreadcrumbsHold();
target.setAttribute("siblings-menu-open", "true");
}
}
function handleClick(aEvent) {
cancelHold();
let target = aEvent.originalTarget;
if (target.tagName == "button") {
target.onBreadcrumbsClick();
}
}
function cancelHold(aEvent) {
window.clearTimeout(timer);
container.removeEventListener("mouseout", cancelHold, false);
container.removeEventListener("mouseup", handleClick, false);
}
container.addEventListener("mouseout", cancelHold, false);
container.addEventListener("mouseup", handleClick, false);
timer = window.setTimeout(openMenu, 500, aEvent);
}
},
/**
* Remove nodes and delete properties.
*/
destroy: function BC_destroy()
{
this.empty();
this.container.removeEventListener("mousedown", this, true);
this.menu.parentNode.removeChild(this.menu);
this.container = null;
this.nodeHierarchy = null;
},
/**
* Empty the breadcrumbs container.
*/
empty: function BC_empty()
{
while (this.container.hasChildNodes()) {
this.container.removeChild(this.container.firstChild);
}
},
/**
* Re-init the cache and remove all the buttons.
*/
invalidateHierarchy: function BC_invalidateHierarchy()
{
this.menu.hidePopup();
this.nodeHierarchy = [];
this.empty();
},
/**
* Set which button represent the selected node.
*
* @param aIdx Index of the displayed-button to select
*/
setCursor: function BC_setCursor(aIdx)
{
// Unselect the previously selected button
if (this.currentIndex > -1 && this.currentIndex < this.nodeHierarchy.length) {
this.nodeHierarchy[this.currentIndex].button.removeAttribute("checked");
}
if (aIdx > -1) {
this.nodeHierarchy[aIdx].button.setAttribute("checked", "true");
}
this.currentIndex = aIdx;
},
/**
* Get the index of the node in the cache.
*
* @param aNode
* @returns integer the index, -1 if not found
*/
indexOf: function BC_indexOf(aNode)
{
let i = this.nodeHierarchy.length - 1;
for (let i = this.nodeHierarchy.length - 1; i >= 0; i--) {
if (this.nodeHierarchy[i].node === aNode) {
return i;
}
}
return -1;
},
/**
* Remove all the buttons and their references in the cache
* after a given index.
*
* @param aIdx
*/
cutAfter: function BC_cutAfter(aIdx)
{
while (this.nodeHierarchy.length > (aIdx + 1)) {
let toRemove = this.nodeHierarchy.pop();
this.container.removeChild(toRemove.button);
}
},
/**
* Build a button representing the node.
*
* @param aNode The node from the page.
* @returns aNode The <button>.
*/
buildButton: function BC_buildButton(aNode)
{
let button = this.IUI.chromeDoc.createElement("button");
let inspector = this.IUI;
button.appendChild(this.prettyPrintNodeAsXUL(aNode));
button.className = "inspector-breadcrumbs-button";
button.setAttribute("tooltiptext", this.prettyPrintNodeAsText(aNode));
button.onBreadcrumbsClick = function onBreadcrumbsClick() {
inspector.stopInspecting();
inspector.select(aNode, true, true);
};
button.onclick = (function _onBreadcrumbsRightClick(aEvent) {
if (aEvent.button == 2) {
this.openSiblingMenu(button, aNode);
}
}).bind(this);
button.onBreadcrumbsHold = (function _onBreadcrumbsHold() {
this.openSiblingMenu(button, aNode);
}).bind(this);
return button;
},
/**
* Connecting the end of the breadcrumbs to a node.
*
* @param aNode The node to reach.
*/
expand: function BC_expand(aNode)
{
let fragment = this.IUI.chromeDoc.createDocumentFragment();
let toAppend = aNode;
let lastButtonInserted = null;
let originalLength = this.nodeHierarchy.length;
let stopNode = null;
if (originalLength > 0) {
stopNode = this.nodeHierarchy[originalLength - 1].node;
}
while (toAppend && toAppend.tagName && toAppend != stopNode) {
let button = this.buildButton(toAppend);
fragment.insertBefore(button, lastButtonInserted);
lastButtonInserted = button;
this.nodeHierarchy.splice(originalLength, 0, {node: toAppend, button: button});
toAppend = this.DOMHelpers.getParentObject(toAppend);
}
this.container.appendChild(fragment, this.container.firstChild);
},
/**
* Get a child of a node that can be displayed in the breadcrumbs.
* By default, we want a node that can highlighted by the highlighter.
* If no highlightable child is found, we return the first node of type
* ELEMENT_NODE.
*
* @param aNode The parent node.
* @returns nsIDOMNode|null
*/
getFirstHighlightableChild: function BC_getFirstHighlightableChild(aNode)
{
let nextChild = this.DOMHelpers.getChildObject(aNode, 0);
let fallback = null;
while (nextChild) {
if (this.IUI.highlighter.isNodeHighlightable(nextChild)) {
return nextChild;
}
if (!fallback && nextChild.nodeType == aNode.ELEMENT_NODE) {
fallback = nextChild;
}
nextChild = this.DOMHelpers.getNextSibling(nextChild);
}
return fallback;
},
/**
* Find the "youngest" ancestor of a node which is already in the breadcrumbs.
*
* @param aNode
* @returns Index of the ancestor in the cache
*/
getCommonAncestor: function BC_getCommonAncestor(aNode)
{
let node = aNode;
while (node) {
let idx = this.indexOf(node);
if (idx > -1) {
return idx;
} else {
node = this.DOMHelpers.getParentObject(node);
}
}
return -1;
},
/**
* Make sure that the latest node in the breadcrumbs is not the selected node
* if the selected node still has children.
*/
ensureFirstChild: function BC_ensureFirstChild()
{
// If the last displayed node is the selected node
if (this.currentIndex == this.nodeHierarchy.length - 1) {
let node = this.nodeHierarchy[this.currentIndex].node;
let child = this.getFirstHighlightableChild(node);
// If the node has a child
if (child) {
// Show this child
this.expand(child);
}
}
},
/**
* Ensure the selected node is visible.
*/
scroll: function BC_scroll()
{
// FIXME bug 684352: make sure its immediate neighbors are visible too.
let scrollbox = this.container;
let element = this.nodeHierarchy[this.currentIndex].button;
scrollbox.ensureElementIsVisible(element);
},
/**
* Update the breadcrumbs display when a new node is selected.
*/
update: function BC_update()
{
this.menu.hidePopup();
let selection = this.IUI.selection;
let idx = this.indexOf(selection);
// Is the node already displayed in the breadcrumbs?
if (idx > -1) {
// Yes. We select it.
this.setCursor(idx);
} else {
// No. Is the breadcrumbs display empty?
if (this.nodeHierarchy.length > 0) {
// No. We drop all the element that are not direct ancestors
// of the selection
let parent = this.DOMHelpers.getParentObject(selection);
let idx = this.getCommonAncestor(parent);
this.cutAfter(idx);
}
// we append the missing button between the end of the breadcrumbs display
// and the current node.
this.expand(selection);
// we select the current node button
idx = this.indexOf(selection);
this.setCursor(idx);
}
// Add the first child of the very last node of the breadcrumbs if possible.
this.ensureFirstChild();
// Make sure the selected node and its neighbours are visible.
this.scroll();
}
}
/////////////////////////////////////////////////////////////////////////
//// Initializers
XPCOMUtils.defineLazyGetter(InspectorUI.prototype, "strings",
function () {
return Services.strings.createBundle(
"chrome://browser/locale/devtools/inspector.properties");
});
XPCOMUtils.defineLazyGetter(this, "StyleInspector", function () {
var obj = {};
Cu.import("resource:///modules/devtools/StyleInspector.jsm", obj);
return obj.StyleInspector;
});
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