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/*
* Copyright (C) 2017 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
WI.RecordingContentView = class RecordingContentView extends WI.ContentView
{
constructor(representedObject)
{
console.assert(representedObject instanceof WI.Recording);
super(representedObject);
this._index = NaN;
this._action = null;
this._snapshots = [];
this._initialContent = null;
this._generateContentThrottler = new Throttler(() => {
if (this.representedObject.isCanvas2D)
this._generateContentCanvas2D(this._index);
else if (this.representedObject.isCanvasBitmapRenderer || this.representedObject.isCanvasWebGL || this.representedObject.isCanvasWebGL2)
this._generateContentFromSnapshot(this._index);
}, 200);
this.element.classList.add("recording", this.representedObject.type);
if (this.representedObject.isCanvas) {
if (this.representedObject.isCanvas2D) {
this._pathContext = null;
this._showPathButtonNavigationItem = new WI.ActivateButtonNavigationItem("show-path", WI.UIString("Show Path"), WI.UIString("Hide Path"), "Images/Path.svg", 16, 16);
this._showPathButtonNavigationItem.visibilityPriority = WI.NavigationItem.VisibilityPriority.High;
this._showPathButtonNavigationItem.addEventListener(WI.ButtonNavigationItem.Event.Clicked, this._showPathButtonClicked, this);
this._showPathButtonNavigationItem.activated = !!WI.settings.showCanvasPath.value;
}
this._showGridButtonNavigationItem = new WI.ActivateButtonNavigationItem("show-grid", WI.repeatedUIString.showTransparencyGridTooltip(), WI.UIString("Hide transparency grid"), "Images/NavigationItemCheckers.svg", 13, 13);
this._showGridButtonNavigationItem.visibilityPriority = WI.NavigationItem.VisibilityPriority.High;
this._showGridButtonNavigationItem.addEventListener(WI.ButtonNavigationItem.Event.Clicked, this._showGridButtonClicked, this);
this._showGridButtonNavigationItem.activated = !!WI.settings.showImageGrid.value;
if (this.representedObject.isCanvas2D && WI.FileUtilities.canSave(WI.FileUtilities.SaveMode.FileVariants))
this._saveMode = WI.FileUtilities.SaveMode.FileVariants;
else if (WI.FileUtilities.canSave(WI.FileUtilities.SaveMode.SingleFile))
this._saveMode = WI.FileUtilities.SaveMode.SingleFile;
else
this._saveMode = null;
this._exportButtonNavigationItem = new WI.ButtonNavigationItem("export", WI.UIString("Export"), "Images/Export.svg", 15, 15);
this._exportButtonNavigationItem.tooltip = WI.UIString("Export (%s)").format(WI.saveKeyboardShortcut.displayName);
this._exportButtonNavigationItem.buttonStyle = WI.ButtonNavigationItem.Style.ImageAndText;
this._exportButtonNavigationItem.enabled = this._saveMode;
this._exportButtonNavigationItem.addEventListener(WI.ButtonNavigationItem.Event.Clicked, this._handleExportNavigationItemClicked, this);
this._updateExportButton();
}
}
// Public
get navigationItems()
{
if (!this.representedObject.isCanvas)
return [];
let navigationItems = [this._exportButtonNavigationItem, new WI.DividerNavigationItem];
if (this.representedObject.isCanvas2D)
navigationItems.push(this._showPathButtonNavigationItem);
navigationItems.push(this._showGridButtonNavigationItem);
return navigationItems;
}
get supplementalRepresentedObjects()
{
return this._action ? [this._action] : [];
}
updateActionIndex(index)
{
if (!this.representedObject)
return;
if (this._index === index)
return;
console.assert(index >= 0 && index < this.representedObject.actions.length);
if (index < 0 || index >= this.representedObject.actions.length)
return;
this._index = index;
this._updateSliderValue();
if (this.didInitialLayout)
this._generateContentThrottler.fire();
this._action = this.representedObject.actions[this._index];
this.dispatchEventToListeners(WI.ContentView.Event.SupplementalRepresentedObjectsDidChange);
}
attached()
{
super.attached();
if (this.representedObject.isCanvas) {
if (this.representedObject.isCanvas2D)
this._updateCanvasPath();
this._updateImageGrid();
}
}
detached()
{
this._generateContentThrottler.cancel();
super.detached();
}
// Protected
get supportsSave()
{
return !!this._saveMode;
}
get saveMode()
{
return this._saveMode;
}
get saveData()
{
return {customSaveHandler: () => { this._export(); }};
}
initialLayout()
{
let previewHeader = this.element.appendChild(document.createElement("header"));
let sliderContainer = previewHeader.appendChild(document.createElement("div"));
sliderContainer.className = "slider-container";
this._previewContainer = this.element.appendChild(document.createElement("div"));
this._previewContainer.className = "preview-container";
this._sliderValueElement = sliderContainer.appendChild(document.createElement("div"));
this._sliderValueElement.className = "slider-value";
this._sliderElement = sliderContainer.appendChild(document.createElement("input"));
this._sliderElement.addEventListener("input", this._sliderChanged.bind(this));
this._sliderElement.type = "range";
this._sliderElement.min = 0;
this._sliderElement.max = 0;
if (!this.representedObject.ready) {
this.representedObject.addEventListener(WI.Recording.Event.ProcessedAction, this._handleRecordingProcessedAction, this);
if (!this.representedObject.processing)
this.representedObject.startProcessing();
}
this._updateSliderValue();
if (!isNaN(this._index))
this._generateContentThrottler.fire();
}
// Private
_export()
{
if (this._saveMode === WI.FileUtilities.SaveMode.SingleFile) {
this._exportRecording();
return;
}
let filename = this.representedObject.displayName;
let data = [];
data.push({
displayType: WI.UIString("Recording"),
content: JSON.stringify(this.representedObject.toJSON()),
suggestedName: filename + ".recording",
});
if (this.representedObject.isCanvas2D && this.representedObject.ready) {
data.push({
displayType: WI.UIString("Reduction"),
content: this.representedObject.toHTML(),
suggestedName: filename + ".html",
});
}
const forceSaveAs = true;
WI.FileUtilities.save(WI.FileUtilities.SaveMode.FileVariants, data, forceSaveAs);
}
_exportRecording()
{
let filename = this.representedObject.displayName;
const forceSaveAs = true;
WI.FileUtilities.save(WI.FileUtilities.SaveMode.SingleFile, {
content: JSON.stringify(this.representedObject.toJSON()),
suggestedName: filename + ".recording",
}, forceSaveAs);
}
_exportReduction()
{
console.assert(this.representedObject.ready);
let filename = this.representedObject.displayName;
const forceSaveAs = true;
WI.FileUtilities.save(WI.FileUtilities.SaveMode.SingleFile, {
content: this.representedObject.toHTML(),
suggestedName: filename + ".html",
}, forceSaveAs);
}
_generateContentCanvas2D(index)
{
let imageLoad = (event) => {
// Loading took too long and the current action index has already changed.
if (index !== this._index)
return;
this._generateContentCanvas2D(index);
};
let initialState = this.representedObject.initialState;
if (initialState.content && !this._initialContent) {
this._initialContent = new Image;
this._initialContent.src = initialState.content;
this._initialContent.addEventListener("load", imageLoad);
return;
}
let snapshotIndex = Math.floor(index / WI.RecordingContentView.SnapshotInterval);
let snapshot = this._snapshots[snapshotIndex];
let indexOfLastBeginPathAction = Infinity;
let actions = this.representedObject.actions;
let applyActions = (from, to, callback) => {
let saveCount = 0;
snapshot.context.save();
for (let attribute in snapshot.attributes)
snapshot.element[attribute] = snapshot.attributes[attribute];
if (snapshot.content) {
snapshot.context.clearRect(0, 0, snapshot.element.width, snapshot.element.height);
snapshot.context.drawImage(snapshot.content, 0, 0);
}
for (let state of snapshot.states) {
state.apply(this.representedObject.type, snapshot.context);
++saveCount;
snapshot.context.save();
}
let lastPathPoint = {};
let subPathStartPoint = {};
for (let i = from; i <= to; ++i) {
if (actions[i].name === "save")
++saveCount;
else if (actions[i].name === "restore") {
if (!saveCount) // Only attempt to restore if save has been called.
continue;
}
actions[i].apply(snapshot.context);
}
if (WI.settings.showCanvasPath.value && indexOfLastBeginPathAction <= to) {
if (!this._pathContext) {
let pathCanvas = document.createElement("canvas");
pathCanvas.classList.add("path");
this._pathContext = pathCanvas.getContext("2d");
}
this._pathContext.canvas.width = snapshot.element.width;
this._pathContext.canvas.height = snapshot.element.height;
this._pathContext.clearRect(0, 0, snapshot.element.width, snapshot.element.height);
this._pathContext.save();
this._pathContext.fillStyle = "hsla(0, 0%, 100%, 0.75)";
this._pathContext.fillRect(0, 0, snapshot.element.width, snapshot.element.height);
function actionModifiesPath(action) {
switch (action.name) {
case "arc":
case "arcTo":
case "beginPath":
case "bezierCurveTo":
case "closePath":
case "ellipse":
case "lineTo":
case "moveTo":
case "quadraticCurveTo":
case "rect":
return true;
}
return false;
}
for (let i = indexOfLastBeginPathAction; i <= to; ++i) {
if (!actionModifiesPath(actions[i]))
continue;
lastPathPoint = {x: this._pathContext.currentX, y: this._pathContext.currentY};
if (i === indexOfLastBeginPathAction)
this._pathContext.setTransform(snapshot.context.getTransform());
let isMoveTo = actions[i].name === "moveTo";
this._pathContext.lineWidth = isMoveTo ? 0.5 : 1;
this._pathContext.setLineDash(isMoveTo ? [5, 5] : []);
this._pathContext.strokeStyle = i === to ? "red" : "black";
this._pathContext.beginPath();
if (!isEmptyObject(lastPathPoint))
this._pathContext.moveTo(lastPathPoint.x, lastPathPoint.y);
if (actions[i].name === "closePath" && !isEmptyObject(subPathStartPoint)) {
this._pathContext.lineTo(subPathStartPoint.x, subPathStartPoint.y);
subPathStartPoint = {};
} else {
actions[i].apply(this._pathContext, {nameOverride: isMoveTo ? "lineTo" : null});
if (isMoveTo)
subPathStartPoint = {x: this._pathContext.currentX, y: this._pathContext.currentY};
}
this._pathContext.stroke();
}
this._pathContext.restore();
this._previewContainer.appendChild(this._pathContext.canvas);
} else if (this._pathContext)
this._pathContext.canvas.remove();
snapshot.context.restore();
while (saveCount-- > 0)
snapshot.context.restore();
};
if (!snapshot) {
snapshot = this._snapshots[snapshotIndex] = {};
snapshot.index = snapshotIndex * WI.RecordingContentView.SnapshotInterval;
while (snapshot.index && actions[snapshot.index].name !== "beginPath")
--snapshot.index;
snapshot.context = this.representedObject.createContext();
snapshot.element = snapshot.context.canvas;
let lastSnapshotIndex = snapshotIndex;
while (--lastSnapshotIndex >= 0) {
if (this._snapshots[lastSnapshotIndex])
break;
}
let startIndex = 0;
if (lastSnapshotIndex < 0) {
snapshot.content = this._initialContent;
snapshot.states = actions[0].states;
snapshot.attributes = Object.shallowCopy(initialState.attributes);
} else {
let lastSnapshot = this._snapshots[lastSnapshotIndex];
snapshot.content = lastSnapshot.content;
snapshot.states = lastSnapshot.states;
snapshot.attributes = {};
for (let attribute in initialState.attributes)
snapshot.attributes[attribute] = lastSnapshot.element[attribute];
startIndex = lastSnapshot.index;
}
applyActions(startIndex, snapshot.index - 1);
if (snapshot.index > 0)
snapshot.states = actions[snapshot.index - 1].states;
snapshot.content = new Image;
snapshot.content.src = snapshot.element.toDataURL();
snapshot.content.addEventListener("load", imageLoad);
return;
}
this._previewContainer.removeChildren();
if (WI.settings.showCanvasPath.value) {
indexOfLastBeginPathAction = this._index;
while (indexOfLastBeginPathAction > snapshot.index && actions[indexOfLastBeginPathAction].name !== "beginPath")
--indexOfLastBeginPathAction;
}
applyActions(snapshot.index, this._index);
this._previewContainer.insertAdjacentElement("afterbegin", snapshot.element);
this._updateImageGrid();
}
_generateContentFromSnapshot(index)
{
let imageLoad = (event) => {
// Loading took too long and the current action index has already changed.
if (index !== this._index)
return;
this._generateContentFromSnapshot(index);
};
let initialState = this.representedObject.initialState;
if (initialState.content && !this._initialContent) {
this._initialContent = new Image;
this._initialContent.src = initialState.content;
this._initialContent.addEventListener("load", imageLoad);
return;
}
let actions = this.representedObject.actions;
let visualIndex = index;
while (!actions[visualIndex].isVisual && !(actions[visualIndex] instanceof WI.RecordingInitialStateAction))
visualIndex--;
let snapshot = this._snapshots[visualIndex];
if (!snapshot) {
if (actions[visualIndex].snapshot) {
snapshot = this._snapshots[visualIndex] = {element: new Image};
snapshot.element.src = actions[visualIndex].snapshot;
snapshot.element.addEventListener("load", imageLoad);
return;
}
if (actions[visualIndex] instanceof WI.RecordingInitialStateAction)
snapshot = this._snapshots[visualIndex] = {element: this._initialContent};
}
if (snapshot) {
this._previewContainer.removeChildren();
this._previewContainer.appendChild(snapshot.element);
this._updateImageGrid();
}
}
_updateExportButton()
{
if (this._saveMode !== WI.FileUtilities.SaveMode.SingleFile)
return;
if (this.representedObject.isCanvas2D && this.representedObject.ready)
this._exportButtonNavigationItem.tooltip = WI.UIString("Export recording (%s)\nShift-click to export a HTML reduction").format(WI.saveKeyboardShortcut.displayName);
else
this._exportButtonNavigationItem.tooltip = WI.UIString("Export recording (%s)").format(WI.saveKeyboardShortcut.displayName);
}
_updateCanvasPath()
{
let activated = WI.settings.showCanvasPath.value;
if (this._showPathButtonNavigationItem.activated !== activated)
this._generateContentCanvas2D(this._index);
this._showPathButtonNavigationItem.activated = activated;
}
_updateImageGrid()
{
let activated = WI.settings.showImageGrid.value;
this._showGridButtonNavigationItem.activated = activated;
if (this.didInitialLayout && !isNaN(this._index))
this._previewContainer.firstElementChild.classList.toggle("show-grid", activated);
}
_updateSliderValue()
{
if (!this._sliderElement)
return;
let visualActionIndexes = this.representedObject.visualActionIndexes;
let visualActionIndex = 0;
if (this._index > 0) {
while (visualActionIndex < visualActionIndexes.length && visualActionIndexes[visualActionIndex] <= this._index)
visualActionIndex++;
}
this._sliderElement.value = visualActionIndex;
this._sliderElement.max = visualActionIndexes.length;
this._sliderValueElement.textContent = WI.UIString("%d of %d").format(visualActionIndex, visualActionIndexes.length);
}
_showPathButtonClicked(event)
{
WI.settings.showCanvasPath.value = !this._showPathButtonNavigationItem.activated;
this._updateCanvasPath();
}
_showGridButtonClicked(event)
{
WI.settings.showImageGrid.value = !this._showGridButtonNavigationItem.activated;
this._updateImageGrid();
}
_handleExportNavigationItemClicked(event)
{
if (this._saveMode === WI.FileUtilities.SaveMode.SingleFile && this.representedObject.isCanvas2D && this.representedObject.ready && event.data.nativeEvent.shiftKey) {
this._exportReduction();
return;
}
this._export();
}
_sliderChanged()
{
let index = 0;
let visualActionIndex = parseInt(this._sliderElement.value) - 1;
if (visualActionIndex !== -1)
index = this.representedObject.visualActionIndexes[visualActionIndex];
this.updateActionIndex(index);
}
_handleRecordingProcessedAction(event)
{
this._updateExportButton();
this._updateSliderValue();
if (this.representedObject.ready)
this.representedObject.removeEventListener(WI.Recording.Event.ProcessedAction, this._handleRecordingProcessedAction, this);
}
};
WI.RecordingContentView.SnapshotInterval = 5000;
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