strong-arc
Version:
A visual suite for the StrongLoop API Platform
866 lines (755 loc) • 32.7 kB
JavaScript
/*
* Copyright (C) 2013 Google 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.
*/
/**
* @constructor
* @extends {WebInspector.VBox}
* @implements {WebInspector.DOMNodeHighlighter}
* @param {!WebInspector.Target} target
*/
WebInspector.ScreencastView = function(target)
{
WebInspector.VBox.call(this);
this._target = target;
this.setMinimumSize(150, 150);
this.registerRequiredCSS("screencastView.css");
};
WebInspector.ScreencastView._bordersSize = 44;
WebInspector.ScreencastView._navBarHeight = 29;
WebInspector.ScreencastView._HttpRegex = /^https?:\/\/(.+)/;
WebInspector.ScreencastView.prototype = {
initialize: function()
{
this.element.classList.add("screencast");
this._createNavigationBar();
this._viewportElement = this.element.createChild("div", "screencast-viewport hidden");
this._canvasContainerElement = this._viewportElement.createChild("div", "screencast-canvas-container");
this._glassPaneElement = this._canvasContainerElement.createChild("div", "screencast-glasspane hidden");
this._canvasElement = this._canvasContainerElement.createChild("canvas");
this._canvasElement.tabIndex = 1;
this._canvasElement.addEventListener("mousedown", this._handleMouseEvent.bind(this), false);
this._canvasElement.addEventListener("mouseup", this._handleMouseEvent.bind(this), false);
this._canvasElement.addEventListener("mousemove", this._handleMouseEvent.bind(this), false);
this._canvasElement.addEventListener("mousewheel", this._handleMouseEvent.bind(this), false);
this._canvasElement.addEventListener("click", this._handleMouseEvent.bind(this), false);
this._canvasElement.addEventListener("contextmenu", this._handleContextMenuEvent.bind(this), false);
this._canvasElement.addEventListener("keydown", this._handleKeyEvent.bind(this), false);
this._canvasElement.addEventListener("keyup", this._handleKeyEvent.bind(this), false);
this._canvasElement.addEventListener("keypress", this._handleKeyEvent.bind(this), false);
this._canvasElement.addEventListener("blur", this._handleBlurEvent.bind(this), false);
this._titleElement = this._canvasContainerElement.createChild("div", "screencast-element-title monospace hidden");
this._tagNameElement = this._titleElement.createChild("span", "screencast-tag-name");
this._nodeIdElement = this._titleElement.createChild("span", "screencast-node-id");
this._classNameElement = this._titleElement.createChild("span", "screencast-class-name");
this._titleElement.appendChild(document.createTextNode(" "));
this._nodeWidthElement = this._titleElement.createChild("span");
this._titleElement.createChild("span", "screencast-px").textContent = "px";
this._titleElement.appendChild(document.createTextNode(" \u00D7 "));
this._nodeHeightElement = this._titleElement.createChild("span");
this._titleElement.createChild("span", "screencast-px").textContent = "px";
this._imageElement = new Image();
this._isCasting = false;
this._context = this._canvasElement.getContext("2d");
this._checkerboardPattern = this._createCheckerboardPattern(this._context);
this._shortcuts = /** !Object.<number, function(Event=):boolean> */ ({});
this._shortcuts[WebInspector.KeyboardShortcut.makeKey("l", WebInspector.KeyboardShortcut.Modifiers.Ctrl)] = this._focusNavigationBar.bind(this);
WebInspector.resourceTreeModel.addEventListener(WebInspector.ResourceTreeModel.EventTypes.ScreencastFrame, this._screencastFrame, this);
WebInspector.resourceTreeModel.addEventListener(WebInspector.ResourceTreeModel.EventTypes.ScreencastVisibilityChanged, this._screencastVisibilityChanged, this);
WebInspector.profilingLock().addEventListener(WebInspector.Lock.Events.StateChanged, this._onProfilingStateChange, this);
this._updateGlasspane();
},
wasShown: function()
{
this._startCasting();
},
willHide: function()
{
this._stopCasting();
},
_startCasting: function()
{
if (WebInspector.profilingLock().isAcquired())
return;
if (this._isCasting)
return;
this._isCasting = true;
const maxImageDimension = 2048;
var dimensions = this._viewportDimensions();
if (dimensions.width < 0 || dimensions.height < 0) {
this._isCasting = false;
return;
}
dimensions.width *= window.devicePixelRatio;
dimensions.height *= window.devicePixelRatio;
this._target.pageAgent().startScreencast("jpeg", 80, Math.min(maxImageDimension, dimensions.width), Math.min(maxImageDimension, dimensions.height));
this._target.domModel.setHighlighter(this);
},
_stopCasting: function()
{
if (!this._isCasting)
return;
this._isCasting = false;
this._target.pageAgent().stopScreencast();
this._target.domModel.setHighlighter(null);
},
/**
* @param {!WebInspector.Event} event
*/
_screencastFrame: function(event)
{
var metadata = /** type {PageAgent.ScreencastFrameMetadata} */(event.data.metadata);
var base64Data = /** type {string} */(event.data.data);
this._imageElement.src = "data:image/jpg;base64," + base64Data;
this._pageScaleFactor = metadata.pageScaleFactor;
this._screenOffsetTop = metadata.offsetTop;
this._deviceWidth = metadata.deviceWidth;
this._deviceHeight = metadata.deviceHeight;
this._scrollOffsetX = metadata.scrollOffsetX;
this._scrollOffsetY = metadata.scrollOffsetY;
var deviceSizeRatio = metadata.deviceHeight / metadata.deviceWidth;
var dimensionsCSS = this._viewportDimensions();
this._imageZoom = Math.min(dimensionsCSS.width / this._imageElement.naturalWidth, dimensionsCSS.height / (this._imageElement.naturalWidth * deviceSizeRatio));
this._viewportElement.classList.remove("hidden");
var bordersSize = WebInspector.ScreencastView._bordersSize;
if (this._imageZoom < 1.01 / window.devicePixelRatio)
this._imageZoom = 1 / window.devicePixelRatio;
this._screenZoom = this._imageElement.naturalWidth * this._imageZoom / metadata.deviceWidth;
this._viewportElement.style.width = metadata.deviceWidth * this._screenZoom + bordersSize + "px";
this._viewportElement.style.height = metadata.deviceHeight * this._screenZoom + bordersSize + "px";
this.highlightDOMNode(this._highlightNode, this._highlightConfig);
},
_isGlassPaneActive: function()
{
return !this._glassPaneElement.classList.contains("hidden");
},
/**
* @param {!WebInspector.Event} event
*/
_screencastVisibilityChanged: function(event)
{
this._targetInactive = !event.data.visible;
this._updateGlasspane();
},
/**
* @param {!WebInspector.Event} event
*/
_onProfilingStateChange: function(event)
{
if (WebInspector.profilingLock().isAcquired())
this._stopCasting();
else
this._startCasting();
this._updateGlasspane();
},
_updateGlasspane: function()
{
if (this._targetInactive) {
this._glassPaneElement.textContent = WebInspector.UIString("The tab is inactive");
this._glassPaneElement.classList.remove("hidden");
} else if (WebInspector.profilingLock().isAcquired()) {
this._glassPaneElement.textContent = WebInspector.UIString("Profiling in progress");
this._glassPaneElement.classList.remove("hidden");
} else {
this._glassPaneElement.classList.add("hidden");
}
},
/**
* @param {!Event} event
*/
_handleMouseEvent: function(event)
{
if (this._isGlassPaneActive()) {
event.consume();
return;
}
if (!this._pageScaleFactor)
return;
if (!this._inspectModeConfig || event.type === "mousewheel") {
this._simulateTouchForMouseEvent(event);
event.preventDefault();
if (event.type === "mousedown")
this._canvasElement.focus();
return;
}
var position = this._convertIntoScreenSpace(event);
this._target.domModel.nodeForLocation(position.x / this._pageScaleFactor + this._scrollOffsetX, position.y / this._pageScaleFactor + this._scrollOffsetY, callback.bind(this));
/**
* @param {?WebInspector.DOMNode} node
* @this {WebInspector.ScreencastView}
*/
function callback(node)
{
if (!node)
return;
if (event.type === "mousemove")
this.highlightDOMNode(node, this._inspectModeConfig);
else if (event.type === "click")
WebInspector.Revealer.reveal(node);
}
},
/**
* @param {!Event} event
*/
_handleKeyEvent: function(event)
{
if (this._isGlassPaneActive()) {
event.consume();
return;
}
var shortcutKey = WebInspector.KeyboardShortcut.makeKeyFromEvent(/** @type {!KeyboardEvent} */ (event));
var handler = this._shortcuts[shortcutKey];
if (handler && handler(event)) {
event.consume();
return;
}
var type;
switch (event.type) {
case "keydown": type = "keyDown"; break;
case "keyup": type = "keyUp"; break;
case "keypress": type = "char"; break;
default: return;
}
var text = event.type === "keypress" ? String.fromCharCode(event.charCode) : undefined;
InputAgent.dispatchKeyEvent(type, this._modifiersForEvent(event), event.timeStamp / 1000, text, text ? text.toLowerCase() : undefined,
event.keyIdentifier, event.keyCode /* windowsVirtualKeyCode */, event.keyCode /* nativeVirtualKeyCode */, false, false, false);
event.consume();
this._canvasElement.focus();
},
/**
* @param {!Event} event
*/
_handleContextMenuEvent: function(event)
{
event.consume(true);
},
/**
* @param {!Event} event
*/
_simulateTouchForMouseEvent: function(event)
{
const buttons = {0: "none", 1: "left", 2: "middle", 3: "right"};
const types = {"mousedown" : "mousePressed", "mouseup": "mouseReleased", "mousemove": "mouseMoved", "mousewheel": "mouseWheel"};
if (!(event.type in types) || !(event.which in buttons))
return;
if (event.type !== "mousewheel" && buttons[event.which] === "none")
return;
if (event.type === "mousedown" || typeof this._eventScreenOffsetTop === "undefined")
this._eventScreenOffsetTop = this._screenOffsetTop;
var modifiers = (event.altKey ? 1 : 0) | (event.ctrlKey ? 2 : 0) | (event.metaKey ? 4 : 0) | (event.shiftKey ? 8 : 0);
var convertedPosition = this._zoomIntoScreenSpace(event);
convertedPosition.y = Math.round(convertedPosition.y - this._eventScreenOffsetTop);
var params = {type: types[event.type], x: convertedPosition.x, y: convertedPosition.y, modifiers: modifiers, timestamp: event.timeStamp / 1000, button: buttons[event.which], clickCount: 0};
if (event.type === "mousewheel") {
params.deltaX = event.wheelDeltaX / this._screenZoom;
params.deltaY = event.wheelDeltaY / this._screenZoom;
} else {
this._eventParams = params;
}
if (event.type === "mouseup")
delete this._eventScreenOffsetTop;
InputAgent.invoke_emulateTouchFromMouseEvent(params);
},
/**
* @param {!Event} event
*/
_handleBlurEvent: function(event)
{
if (typeof this._eventScreenOffsetTop !== "undefined") {
var params = this._eventParams;
delete this._eventParams;
params.type = "mouseReleased";
InputAgent.invoke_emulateTouchFromMouseEvent(params);
}
},
/**
* @param {!Event} event
* @return {!{x: number, y: number}}
*/
_zoomIntoScreenSpace: function(event)
{
var position = {};
position.x = Math.round(event.offsetX / this._screenZoom);
position.y = Math.round(event.offsetY / this._screenZoom);
return position;
},
/**
* @param {!Event} event
* @return {!{x: number, y: number}}
*/
_convertIntoScreenSpace: function(event)
{
var position = this._zoomIntoScreenSpace(event);
position.y = Math.round(position.y - this._screenOffsetTop);
return position;
},
/**
* @param {!Event} event
* @return {number}
*/
_modifiersForEvent: function(event)
{
var modifiers = 0;
if (event.altKey)
modifiers = 1;
if (event.ctrlKey)
modifiers += 2;
if (event.metaKey)
modifiers += 4;
if (event.shiftKey)
modifiers += 8;
return modifiers;
},
onResize: function()
{
if (this._deferredCasting) {
clearTimeout(this._deferredCasting);
delete this._deferredCasting;
}
this._stopCasting();
this._deferredCasting = setTimeout(this._startCasting.bind(this), 100);
},
/**
* @param {?WebInspector.DOMNode} node
* @param {?DOMAgent.HighlightConfig} config
* @param {!RuntimeAgent.RemoteObjectId=} objectId
*/
highlightDOMNode: function(node, config, objectId)
{
this._highlightNode = node;
this._highlightConfig = config;
if (!node) {
this._model = null;
this._config = null;
this._node = null;
this._titleElement.classList.add("hidden");
this._repaint();
return;
}
this._node = node;
node.boxModel(callback.bind(this));
/**
* @param {?DOMAgent.BoxModel} model
* @this {WebInspector.ScreencastView}
*/
function callback(model)
{
if (!model || !this._pageScaleFactor) {
this._repaint();
return;
}
this._model = this._scaleModel(model);
this._config = config;
this._repaint();
}
},
/**
* @param {!DOMAgent.BoxModel} model
* @return {!DOMAgent.BoxModel}
*/
_scaleModel: function(model)
{
/**
* @param {!DOMAgent.Quad} quad
* @this {WebInspector.ScreencastView}
*/
function scaleQuad(quad)
{
for (var i = 0; i < quad.length; i += 2) {
quad[i] = quad[i] * this._pageScaleFactor * this._screenZoom;
quad[i + 1] = (quad[i + 1] * this._pageScaleFactor + this._screenOffsetTop) * this._screenZoom;
}
}
scaleQuad.call(this, model.content);
scaleQuad.call(this, model.padding);
scaleQuad.call(this, model.border);
scaleQuad.call(this, model.margin);
return model;
},
_repaint: function()
{
var model = this._model;
var config = this._config;
var canvasWidth = this._canvasElement.getBoundingClientRect().width;
var canvasHeight = this._canvasElement.getBoundingClientRect().height;
this._canvasElement.width = window.devicePixelRatio * canvasWidth;
this._canvasElement.height = window.devicePixelRatio * canvasHeight;
this._context.save();
this._context.scale(window.devicePixelRatio, window.devicePixelRatio);
// Paint top and bottom gutter.
this._context.save();
this._context.fillStyle = this._checkerboardPattern;
this._context.fillRect(0, 0, canvasWidth, this._screenOffsetTop * this._screenZoom);
this._context.fillRect(0, this._screenOffsetTop * this._screenZoom + this._imageElement.naturalHeight * this._imageZoom, canvasWidth, canvasHeight);
this._context.restore();
if (model && config) {
this._context.save();
const transparentColor = "rgba(0, 0, 0, 0)";
var hasContent = model.content && config.contentColor !== transparentColor;
var hasPadding = model.padding && config.paddingColor !== transparentColor;
var hasBorder = model.border && config.borderColor !== transparentColor;
var hasMargin = model.margin && config.marginColor !== transparentColor;
var clipQuad;
if (hasMargin && (!hasBorder || !this._quadsAreEqual(model.margin, model.border))) {
this._drawOutlinedQuadWithClip(model.margin, model.border, config.marginColor);
clipQuad = model.border;
}
if (hasBorder && (!hasPadding || !this._quadsAreEqual(model.border, model.padding))) {
this._drawOutlinedQuadWithClip(model.border, model.padding, config.borderColor);
clipQuad = model.padding;
}
if (hasPadding && (!hasContent || !this._quadsAreEqual(model.padding, model.content))) {
this._drawOutlinedQuadWithClip(model.padding, model.content, config.paddingColor);
clipQuad = model.content;
}
if (hasContent)
this._drawOutlinedQuad(model.content, config.contentColor);
this._context.restore();
this._drawElementTitle();
this._context.globalCompositeOperation = "destination-over";
}
this._context.drawImage(this._imageElement, 0, this._screenOffsetTop * this._screenZoom, this._imageElement.naturalWidth * this._imageZoom, this._imageElement.naturalHeight * this._imageZoom);
this._context.restore();
},
/**
* @param {!DOMAgent.Quad} quad1
* @param {!DOMAgent.Quad} quad2
* @return {boolean}
*/
_quadsAreEqual: function(quad1, quad2)
{
for (var i = 0; i < quad1.length; ++i) {
if (quad1[i] !== quad2[i])
return false;
}
return true;
},
/**
* @param {!DOMAgent.RGBA} color
* @return {string}
*/
_cssColor: function(color)
{
if (!color)
return "transparent";
return WebInspector.Color.fromRGBA([color.r, color.g, color.b, color.a]).toString(WebInspector.Color.Format.RGBA) || "";
},
/**
* @param {!DOMAgent.Quad} quad
* @return {!CanvasRenderingContext2D}
*/
_quadToPath: function(quad)
{
this._context.beginPath();
this._context.moveTo(quad[0], quad[1]);
this._context.lineTo(quad[2], quad[3]);
this._context.lineTo(quad[4], quad[5]);
this._context.lineTo(quad[6], quad[7]);
this._context.closePath();
return this._context;
},
/**
* @param {!DOMAgent.Quad} quad
* @param {!DOMAgent.RGBA} fillColor
*/
_drawOutlinedQuad: function(quad, fillColor)
{
this._context.save();
this._context.lineWidth = 2;
this._quadToPath(quad).clip();
this._context.fillStyle = this._cssColor(fillColor);
this._context.fill();
this._context.restore();
},
/**
* @param {!DOMAgent.Quad} quad
* @param {!DOMAgent.Quad} clipQuad
* @param {!DOMAgent.RGBA} fillColor
*/
_drawOutlinedQuadWithClip: function (quad, clipQuad, fillColor)
{
this._context.fillStyle = this._cssColor(fillColor);
this._context.save();
this._context.lineWidth = 0;
this._quadToPath(quad).fill();
this._context.globalCompositeOperation = "destination-out";
this._context.fillStyle = "red";
this._quadToPath(clipQuad).fill();
this._context.restore();
},
_drawElementTitle: function()
{
if (!this._node)
return;
var canvasWidth = this._canvasElement.getBoundingClientRect().width;
var canvasHeight = this._canvasElement.getBoundingClientRect().height;
var lowerCaseName = this._node.localName() || this._node.nodeName().toLowerCase();
this._tagNameElement.textContent = lowerCaseName;
this._nodeIdElement.textContent = this._node.getAttribute("id") ? "#" + this._node.getAttribute("id") : "";
this._nodeIdElement.textContent = this._node.getAttribute("id") ? "#" + this._node.getAttribute("id") : "";
var className = this._node.getAttribute("class");
if (className && className.length > 50)
className = className.substring(0, 50) + "\u2026";
this._classNameElement.textContent = className || "";
this._nodeWidthElement.textContent = this._model.width;
this._nodeHeightElement.textContent = this._model.height;
var marginQuad = this._model.margin;
var titleWidth = this._titleElement.offsetWidth + 6;
var titleHeight = this._titleElement.offsetHeight + 4;
var anchorTop = this._model.margin[1];
var anchorBottom = this._model.margin[7];
const arrowHeight = 7;
var renderArrowUp = false;
var renderArrowDown = false;
var boxX = Math.max(2, this._model.margin[0]);
if (boxX + titleWidth > canvasWidth)
boxX = canvasWidth - titleWidth - 2;
var boxY;
if (anchorTop > canvasHeight) {
boxY = canvasHeight - titleHeight - arrowHeight;
renderArrowDown = true;
} else if (anchorBottom < 0) {
boxY = arrowHeight;
renderArrowUp = true;
} else if (anchorBottom + titleHeight + arrowHeight < canvasHeight) {
boxY = anchorBottom + arrowHeight - 4;
renderArrowUp = true;
} else if (anchorTop - titleHeight - arrowHeight > 0) {
boxY = anchorTop - titleHeight - arrowHeight + 3;
renderArrowDown = true;
} else
boxY = arrowHeight;
this._context.save();
this._context.translate(0.5, 0.5);
this._context.beginPath();
this._context.moveTo(boxX, boxY);
if (renderArrowUp) {
this._context.lineTo(boxX + 2 * arrowHeight, boxY);
this._context.lineTo(boxX + 3 * arrowHeight, boxY - arrowHeight);
this._context.lineTo(boxX + 4 * arrowHeight, boxY);
}
this._context.lineTo(boxX + titleWidth, boxY);
this._context.lineTo(boxX + titleWidth, boxY + titleHeight);
if (renderArrowDown) {
this._context.lineTo(boxX + 4 * arrowHeight, boxY + titleHeight);
this._context.lineTo(boxX + 3 * arrowHeight, boxY + titleHeight + arrowHeight);
this._context.lineTo(boxX + 2 * arrowHeight, boxY + titleHeight);
}
this._context.lineTo(boxX, boxY + titleHeight);
this._context.closePath();
this._context.fillStyle = "rgb(255, 255, 194)";
this._context.fill();
this._context.strokeStyle = "rgb(128, 128, 128)";
this._context.stroke();
this._context.restore();
this._titleElement.classList.remove("hidden");
this._titleElement.style.top = (boxY + 3) + "px";
this._titleElement.style.left = (boxX + 3) + "px";
},
/**
* @return {!{width: number, height: number}}
*/
_viewportDimensions: function()
{
const gutterSize = 30;
const bordersSize = WebInspector.ScreencastView._bordersSize;
var width = this.element.offsetWidth - bordersSize - gutterSize;
var height = this.element.offsetHeight - bordersSize - gutterSize - WebInspector.ScreencastView._navBarHeight;
return { width: width, height: height };
},
/**
* @param {boolean} enabled
* @param {boolean} inspectUAShadowDOM
* @param {!DOMAgent.HighlightConfig} config
* @param {function(?Protocol.Error)=} callback
*/
setInspectModeEnabled: function(enabled, inspectUAShadowDOM, config, callback)
{
this._inspectModeConfig = enabled ? config : null;
if (callback)
callback(null);
},
/**
* @param {!CanvasRenderingContext2D} context
*/
_createCheckerboardPattern: function(context)
{
var pattern = /** @type {!HTMLCanvasElement} */(document.createElement("canvas"));
const size = 32;
pattern.width = size * 2;
pattern.height = size * 2;
var pctx = pattern.getContext("2d");
pctx.fillStyle = "rgb(195, 195, 195)";
pctx.fillRect(0, 0, size * 2, size * 2);
pctx.fillStyle = "rgb(225, 225, 225)";
pctx.fillRect(0, 0, size, size);
pctx.fillRect(size, size, size, size);
return context.createPattern(pattern, "repeat");
},
_createNavigationBar: function()
{
this._navigationBar = this.element.createChild("div", "toolbar-background toolbar-colors screencast-navigation");
if (WebInspector.queryParam("hideNavigation"))
this._navigationBar.classList.add("hidden");
this._navigationBack = this._navigationBar.createChild("button", "back");
this._navigationBack.disabled = true;
this._navigationBack.addEventListener("click", this._navigateToHistoryEntry.bind(this, -1), false);
this._navigationForward = this._navigationBar.createChild("button", "forward");
this._navigationForward.disabled = true;
this._navigationForward.addEventListener("click", this._navigateToHistoryEntry.bind(this, 1), false);
this._navigationReload = this._navigationBar.createChild("button", "reload");
this._navigationReload.addEventListener("click", this._navigateReload.bind(this), false);
this._navigationUrl = this._navigationBar.createChild("input");
this._navigationUrl.type = "text";
this._navigationUrl.addEventListener('keyup', this._navigationUrlKeyUp.bind(this), true);
this._navigationProgressBar = new WebInspector.ScreencastView.ProgressTracker(this._navigationBar.createChild("div", "progress"));
this._requestNavigationHistory();
WebInspector.targetManager.addEventListener(WebInspector.TargetManager.Events.InspectedURLChanged, this._requestNavigationHistory, this);
},
_navigateToHistoryEntry: function(offset)
{
var newIndex = this._historyIndex + offset;
if (newIndex < 0 || newIndex >= this._historyEntries.length)
return;
PageAgent.navigateToHistoryEntry(this._historyEntries[newIndex].id);
this._requestNavigationHistory();
},
_navigateReload: function()
{
WebInspector.resourceTreeModel.reloadPage();
},
_navigationUrlKeyUp: function(event)
{
if (event.keyIdentifier != 'Enter')
return;
var url = this._navigationUrl.value;
if (!url)
return;
if (!url.match(WebInspector.ScreencastView._HttpRegex))
url = "http://" + url;
PageAgent.navigate(url);
this._canvasElement.focus();
},
_requestNavigationHistory: function()
{
PageAgent.getNavigationHistory(this._onNavigationHistory.bind(this));
},
_onNavigationHistory: function(error, currentIndex, entries)
{
if (error)
return;
this._historyIndex = currentIndex;
this._historyEntries = entries;
this._navigationBack.disabled = currentIndex == 0;
this._navigationForward.disabled = currentIndex == (entries.length - 1);
var url = entries[currentIndex].url;
var match = url.match(WebInspector.ScreencastView._HttpRegex);
if (match)
url = match[1];
InspectorFrontendHost.inspectedURLChanged(url);
this._navigationUrl.value = url;
},
_focusNavigationBar: function()
{
this._navigationUrl.focus();
this._navigationUrl.select();
return true;
},
__proto__: WebInspector.VBox.prototype
}
/**
* @param {!Element} element
* @constructor
*/
WebInspector.ScreencastView.ProgressTracker = function(element)
{
this._element = element;
WebInspector.targetManager.addModelListener(WebInspector.ResourceTreeModel, WebInspector.ResourceTreeModel.EventTypes.MainFrameNavigated, this._onMainFrameNavigated, this);
WebInspector.targetManager.addModelListener(WebInspector.ResourceTreeModel, WebInspector.ResourceTreeModel.EventTypes.Load, this._onLoad, this);
WebInspector.targetManager.addModelListener(WebInspector.NetworkManager, WebInspector.NetworkManager.EventTypes.RequestStarted, this._onRequestStarted, this);
WebInspector.targetManager.addModelListener(WebInspector.NetworkManager, WebInspector.NetworkManager.EventTypes.RequestFinished, this._onRequestFinished, this);
}
WebInspector.ScreencastView.ProgressTracker.prototype = {
_onMainFrameNavigated: function()
{
this._requestIds = {};
this._startedRequests = 0;
this._finishedRequests = 0;
this._maxDisplayedProgress = 0;
this._updateProgress(0.1); // Display first 10% on navigation start.
},
_onLoad: function()
{
delete this._requestIds;
this._updateProgress(1); // Display 100% progress on load, hide it in 0.5s.
setTimeout(function() {
if (!this._navigationProgressVisible())
this._displayProgress(0);
}.bind(this), 500);
},
_navigationProgressVisible: function()
{
return !!this._requestIds;
},
_onRequestStarted: function(event)
{
if (!this._navigationProgressVisible())
return;
var request = /** @type {!WebInspector.NetworkRequest} */ (event.data);
// Ignore long-living WebSockets for the sake of progress indicator, as we won't be waiting them anyway.
if (request.type === WebInspector.resourceTypes.WebSocket)
return;
this._requestIds[request.requestId] = request;
++this._startedRequests;
},
_onRequestFinished: function(event)
{
if (!this._navigationProgressVisible())
return;
var request = /** @type {!WebInspector.NetworkRequest} */ (event.data);
if (!(request.requestId in this._requestIds))
return;
++this._finishedRequests;
setTimeout(function() {
this._updateProgress(this._finishedRequests / this._startedRequests * 0.9); // Finished requests drive the progress up to 90%.
}.bind(this), 500); // Delay to give the new requests time to start. This makes the progress smoother.
},
_updateProgress: function(progress)
{
if (!this._navigationProgressVisible())
return;
if (this._maxDisplayedProgress >= progress)
return;
this._maxDisplayedProgress = progress;
this._displayProgress(progress);
},
_displayProgress: function(progress)
{
this._element.style.width = (100 * progress) + "%";
}
};