713 lines
23 KiB
JavaScript
713 lines
23 KiB
JavaScript
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let browserCanvasContext // The context of the canvas object.
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let stepsInitializationCounter = 0 // This counter the initialization steps required to be able to turn off the splash screen.
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let marketInitializationCounter = 0 // This counter the initialization of markets required to be able to turn off the splash screen.
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let splashScreenNeeded = true
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function newCanvas () {
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const MODULE_NAME = 'Canvas'
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const ERROR_LOG = true
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const logger = newWebDebugLog()
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logger.fileName = MODULE_NAME
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/* Mouse event related variables. */
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let containerDragStarted = false
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let floatingObjectDragStarted = false
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let floatingObjectBeingDragged
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let containerBeingDragged
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let viewPortBeingDragged = false
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let ignoreNextClick = false
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let dragVector = {
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downX: 0,
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downY: 0,
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upX: 0,
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upY: 0
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}
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/* canvas object */
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let thisObject = {
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eventHandler: undefined,
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topSpace: undefined,
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chartSpace: undefined,
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floatingSpace: undefined,
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panelsSpace: undefined,
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cockpitSpace: undefined,
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bottomSpace: undefined,
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strategySpace: undefined,
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animation: undefined,
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initialize: initialize,
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finalize: finalize
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}
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thisObject.eventHandler = newEventHandler()
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let splashScreen
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let lastContainerMouseOver
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return thisObject
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function finalize () {
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try {
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thisObject.chartSpace.finalize()
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thisObject.floatingSpace.finalize()
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browserCanvas.removeEventListener('mousedown', onMouseDown, false)
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browserCanvas.removeEventListener('mouseup', onMouseUp, false)
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browserCanvas.removeEventListener('mousemove', onMouseMove, false)
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browserCanvas.removeEventListener('click', onMouseClick, false)
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browserCanvas.removeEventListener('mouseout', onMouseOut, false)
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if (browserCanvas.removeEventListener) {
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browserCanvas.removeEventListener('mousewheel', onMouseWheel, false)// IE9, Chrome, Safari, Opera
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browserCanvas.removeEventListener('DOMMouseScroll', onMouseWheel, false) // Firefox
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} else browserCanvas.detachEvent('onmousewheel', onMouseWheel) // IE 6/7/8
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browserCanvas.removeEventListener('dragenter', onDragEnter, false)
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browserCanvas.removeEventListener('dragleave', onDragLeave, false)
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browserCanvas.removeEventListener('dragover', onDragOver, false)
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browserCanvas.removeEventListener('drop', onDragDrop, false)
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] finalize -> err = ' + err.stack) }
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}
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}
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async function initialize () {
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try {
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initializeBrowserCanvas()
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addCanvasEvents()
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/* Instantiate all the children spaces of Canvas object */
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thisObject.floatingSpace = newFloatingSpace()
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thisObject.floatingSpace.initialize()
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thisObject.topSpace = newTopSpace()
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await thisObject.topSpace.initialize()
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thisObject.strategySpace = newStrategySpace()
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await thisObject.strategySpace.initialize()
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thisObject.cockpitSpace = newCockpitSpace()
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thisObject.cockpitSpace.initialize()
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thisObject.panelsSpace = newPanelsSpace()
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thisObject.panelsSpace.initialize()
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thisObject.chartSpace = newChartSpace()
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thisObject.chartSpace.initialize(onCharSpaceInitialized)
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thisObject.bottomSpace = thisObject.cockpitSpace
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function onCharSpaceInitialized (err) {
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try {
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viewPort.raiseEvents() // These events will impacts on objects just initialized.
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] initialize -> onCharSpaceInitialized -> err = ' + err.stack) }
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}
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}
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splashScreen = newSplashScreen()
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splashScreen.initialize()
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let animation = newAnimation()
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animation.initialize()
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thisObject.animation = animation
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animation.addCallBackFunction('Floating Space Physics', thisObject.floatingSpace.physics)
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animation.addCallBackFunction('Chart Space Physics', thisObject.chartSpace.physics)
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animation.addCallBackFunction('CockpitSpace Physics', thisObject.cockpitSpace.physics)
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animation.addCallBackFunction('Strategy Space Physics', thisObject.strategySpace.physics)
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animation.addCallBackFunction('Panels Space Physics', thisObject.panelsSpace.physics)
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animation.addCallBackFunction('Floating Space Draw', thisObject.floatingSpace.draw)
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animation.addCallBackFunction('Chart Space Background', thisObject.chartSpace.drawBackground)
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animation.addCallBackFunction('Chart Space Draw', thisObject.chartSpace.draw)
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animation.addCallBackFunction('Panels Space', thisObject.panelsSpace.draw)
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animation.addCallBackFunction('ViewPort Animate', viewPort.animate)
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animation.addCallBackFunction('CockpitSpace Draw', thisObject.cockpitSpace.draw)
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animation.addCallBackFunction('Top Space Draw', thisObject.topSpace.draw)
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animation.addCallBackFunction('Strategy Space Draw', thisObject.strategySpace.draw)
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animation.addCallBackFunction('Splash Screen Draw', splashScreen.draw)
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animation.start()
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] initialize -> err = ' + err.stack) }
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}
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}
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function initializeBrowserCanvas () {
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try {
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browserCanvasContext = browserCanvas.getContext('2d')
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browserCanvasContext.font = 'Saira'
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viewPort.initialize()
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] initializeBrowserCanvas -> err = ' + err.stack) }
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}
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}
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function addCanvasEvents () {
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try {
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browserCanvas.addEventListener('mousedown', onMouseDown, false)
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browserCanvas.addEventListener('mouseup', onMouseUp, false)
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browserCanvas.addEventListener('mousemove', onMouseMove, false)
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browserCanvas.addEventListener('click', onMouseClick, false)
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browserCanvas.addEventListener('mouseout', onMouseOut, false)
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if (browserCanvas.addEventListener) {
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browserCanvas.addEventListener('mousewheel', onMouseWheel, false) // IE9, Chrome, Safari, Opera
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browserCanvas.addEventListener('DOMMouseScroll', onMouseWheel, false) // Firefox
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} else browserCanvas.attachEvent('onmousewheel', onMouseWheel)// IE 6/7/8
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/* Dragging Files Over the Canvas */
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browserCanvas.addEventListener('dragenter', onDragEnter, false)
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browserCanvas.addEventListener('dragleave', onDragLeave, false)
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browserCanvas.addEventListener('dragover', onDragOver, false)
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browserCanvas.addEventListener('drop', onDragDrop, false)
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// Disables the context menu when you right mouse click the canvas.
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browserCanvas.oncontextmenu = function (e) {
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e.preventDefault()
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}
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] addCanvasEvents -> err = ' + err.stack) }
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}
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}
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function onDragEnter (event) {
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try {
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event.preventDefault()
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event.stopPropagation()
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thisObject.cockpitSpace.toTop()
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] onDragEnter -> err = ' + err.stack) }
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}
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}
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function onDragLeave (event) {
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try {
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event.preventDefault()
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event.stopPropagation()
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] onDragLeave -> err = ' + err.stack) }
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}
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}
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function onDragOver (event) {
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try {
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event.preventDefault()
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event.stopPropagation()
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] onDragOver -> err = ' + err.stack) }
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}
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}
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function onDragDrop (event) {
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try {
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event.preventDefault()
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event.stopPropagation()
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let files = event.dataTransfer.files
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handleFiles(files)
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function handleFiles (files) {
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([...files]).forEach(loadFileData)
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}
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function loadFileData (file) {
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let reader = new FileReader()
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reader.readAsText(file)
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reader.onloadend = function () {
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let mousePosition = {
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x: event.x,
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y: event.y
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}
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thisObject.strategySpace.workspace.spawn(reader.result, mousePosition)
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}
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}
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] onDragDrop -> err = ' + err.stack) }
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}
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}
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function onMouseDown (event) {
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try {
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let point = {
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x: event.pageX,
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y: event.pageY - CURRENT_TOP_MARGIN,
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button: event.button
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}
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dragVector.downX = point.x
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dragVector.downY = point.y
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let container
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/* We check if the mouse is over an element of the Strategy Space / */
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container = thisObject.strategySpace.getContainer(point)
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if (container !== undefined && container.isDraggeable === true) {
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containerBeingDragged = container
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containerDragStarted = true
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containerBeingDragged.eventHandler.raiseEvent('onDragStarted', point)
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return
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}
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if (container !== undefined && container.isDraggeable === false) {
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return
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}
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/* We check if the mouse is over an element of the Top Space / */
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container = thisObject.topSpace.getContainer(point)
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if (container !== undefined && container.isDraggeable === true) {
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containerBeingDragged = container
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containerDragStarted = true
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containerBeingDragged.eventHandler.raiseEvent('onDragStarted', point)
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return
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}
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/* We check if the mouse is over an element of the CockpitSpace / */
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container = thisObject.cockpitSpace.getContainer(point)
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if (container !== undefined && container.isDraggeable === true) {
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containerBeingDragged = container
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containerDragStarted = true
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containerBeingDragged.eventHandler.raiseEvent('onDragStarted', point)
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return
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}
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if (container !== undefined && container.isClickeable === true) {
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/* We dont want to mess up with the click */
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return
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}
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/* We check if the mouse is over a panel/ */
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container = thisObject.panelsSpace.getContainer(point)
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if (container !== undefined && container.isDraggeable === true && event.button === 2) {
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containerBeingDragged = container
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containerDragStarted = true
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containerBeingDragged.eventHandler.raiseEvent('onDragStarted', point)
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return
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}
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if (container !== undefined && container.isClickeable === true) {
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/* We dont want to mess up with the click */
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return
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}
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/* we check if it is over any of the existing containers at the Chart Space. */
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container = thisObject.chartSpace.getContainer(point)
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if (container !== undefined) {
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if (container.isDraggeable === true) {
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containerBeingDragged = container
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containerDragStarted = true
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containerBeingDragged.eventHandler.raiseEvent('onDragStarted', point)
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return
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} else {
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viewPortBeingDragged = true
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return
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}
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}
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container = thisObject.floatingSpace.getContainer(point)
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if (container !== undefined && container.isDraggeable === true) {
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containerBeingDragged = container
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containerDragStarted = true
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floatingObjectDragStarted = true
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containerBeingDragged.eventHandler.raiseEvent('onDragStarted', point)
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return
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}
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if (container !== undefined && container.isClickeable === true) {
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/* We dont want to mess up with the click */
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return
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}
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] onMouseDown -> err = ' + err.stack) }
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}
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}
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function onMouseClick (event) {
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try {
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if (ignoreNextClick === true) {
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ignoreNextClick = false
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return
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}
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let point = {
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x: event.pageX,
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y: event.pageY - CURRENT_TOP_MARGIN
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}
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let container
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/* We check if the mouse is over an element of the Strategy Space / */
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container = thisObject.strategySpace.getContainer(point)
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if (container !== undefined && container.isClickeable === true) {
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container.eventHandler.raiseEvent('onMouseClick', point)
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return
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}
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/* We check if the mouse is over an element of the Top Space / */
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container = thisObject.topSpace.getContainer(point)
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if (container !== undefined && container.isClickeable === true) {
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container.eventHandler.raiseEvent('onMouseClick', point)
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return
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}
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/* We check if the mouse is over an element of the CockpitSpace / */
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container = thisObject.cockpitSpace.getContainer(point)
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if (container !== undefined && container.isClickeable === true) {
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container.eventHandler.raiseEvent('onMouseClick', point)
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return
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}
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/* We check if the mouse is over a panel/ */
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container = thisObject.panelsSpace.getContainer(point)
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if (container !== undefined && container.isClickeable === true) {
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container.eventHandler.raiseEvent('onMouseClick', point)
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return
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}
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/* If it is not, then we check if it is over any of the existing containers at the Chart Space. */
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container = thisObject.chartSpace.getContainer(point)
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if (container !== undefined && container.isClickeable === true) {
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container.eventHandler.raiseEvent('onMouseClick', point)
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return
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}
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/* We check if the mouse is over a floatingObject/ */
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container = thisObject.floatingSpace.getContainer(point)
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if (container !== undefined && container.isClickeable === true) {
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container.eventHandler.raiseEvent('onMouseClick', point)
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return
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}
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] onMouseClick -> err = ' + err.stack) }
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}
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}
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function onMouseOut (event) {
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deactivateDragging(event)
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/* When the mouse leaves the canvas, our elements needs to react to the fact that the mouse is over a far away place */
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let thisEvent = {
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pageX: VERY_LARGE_NUMBER,
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pageY: VERY_LARGE_NUMBER
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}
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onMouseOver(thisEvent)
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}
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function onMouseUp (event) {
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deactivateDragging(event)
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}
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function onMouseMove (event) {
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try {
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let point = {
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x: event.pageX,
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y: event.pageY - CURRENT_TOP_MARGIN
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}
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viewPort.mousePosition.x = point.x
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viewPort.mousePosition.y = point.y
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if (containerDragStarted === true || floatingObjectDragStarted === true || viewPortBeingDragged === true) {
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if (floatingObjectDragStarted === true) {
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let targetContainer = thisObject.floatingSpace.getContainer(point)
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if (targetContainer !== undefined) {
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if (targetContainer.id !== containerBeingDragged.id) {
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containerBeingDragged.eventHandler.raiseEvent('onDragFinished', point)
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containerBeingDragged = undefined
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containerDragStarted = false
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floatingObjectDragStarted = false
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browserCanvas.style.cursor = 'auto'
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ignoreNextClick = true
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return
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}
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} else {
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containerBeingDragged.eventHandler.raiseEvent('onDragFinished', point)
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containerDragStarted = false
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containerBeingDragged = undefined
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floatingObjectDragStarted = false
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browserCanvas.style.cursor = 'auto'
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ignoreNextClick = true
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return
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}
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}
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dragVector.upX = point.x
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dragVector.upY = point.y
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checkDrag(event)
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} else {
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onMouseOver(event)
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}
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} catch (err) {
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if (ERROR_LOG === true) { logger.write('[ERROR] onMouseMove -> err = ' + err.stack) }
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}
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}
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function onMouseOver (event) {
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try {
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/* Then we check who is the current object underneeth the mounse. */
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let point = {
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x: event.pageX,
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y: event.pageY - CURRENT_TOP_MARGIN
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}
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let container
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/* We check if the mouse is over an element of the Strategy Space / */
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if (thisObject.strategySpace !== undefined) {
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container = thisObject.strategySpace.getContainer(point)
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if (container !== undefined && container.detectMouseOver === true) {
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containerFound()
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return
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}
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}
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/* We check if the mouse is over an element of the Top Space / */
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if (thisObject.topSpace !== undefined) {
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container = thisObject.topSpace.getContainer(point)
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if (container !== undefined && container.detectMouseOver === true) {
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containerFound()
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return
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}
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}
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/* We check if the mouse is over an element of the CockpitSpace / */
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if (thisObject.cockpitSpace !== undefined) {
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container = thisObject.cockpitSpace.getContainer(point)
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if (container !== undefined && container.detectMouseOver === true) {
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containerFound()
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return
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}
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}
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/* We check if the mouse is over a panel/ */
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if (thisObject.panelsSpace !== undefined) {
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container = thisObject.panelsSpace.getContainer(point)
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if (container !== undefined && container.detectMouseOver === true) {
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containerFound()
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return
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}
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}
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/* If it is not, then we check if it is over any of the existing containers at the Chart Space. */
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if (thisObject.chartSpace !== undefined) {
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container = thisObject.chartSpace.getContainer(point, GET_CONTAINER_PURPOSE.MOUSE_OVER)
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if (container !== undefined && container.detectMouseOver === true) {
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containerFound()
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return
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}
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}
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/* We check if the mouse is over a floatingObject/ */
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if (thisObject.floatingSpace !== undefined) {
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container = thisObject.floatingSpace.getContainer(point)
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if (container !== undefined && container.detectMouseOver === true) {
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containerFound()
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return
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}
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}
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function containerFound () {
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if (lastContainerMouseOver !== undefined) {
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if (container.id !== lastContainerMouseOver.id) {
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lastContainerMouseOver.eventHandler.raiseEvent('onMouseNotOver', point)
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}
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}
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container.eventHandler.raiseEvent('onMouseOver', point)
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lastContainerMouseOver = container
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}
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} catch (err) {
|
|
if (ERROR_LOG === true) { logger.write('[ERROR] onMouseOver -> err = ' + err.stack) }
|
|
}
|
|
}
|
|
|
|
function onMouseWheel (event) {
|
|
try {
|
|
// cross-browser wheel delta
|
|
var event = window.event || event // old IE support
|
|
let delta = Math.max(-1, Math.min(1, event.wheelDelta || -event.detail))
|
|
|
|
/* We try first with panels. */
|
|
|
|
let point = {
|
|
x: event.pageX,
|
|
y: event.pageY - CURRENT_TOP_MARGIN
|
|
}
|
|
|
|
event.mousePosition = point
|
|
let container
|
|
container = canvas.panelsSpace.getContainer({ x: point.x, y: point.y })
|
|
|
|
if (container !== undefined && container.isWheelable === true) {
|
|
container.eventHandler.raiseEvent('onMouseWheel', event)
|
|
return false // This instructs the browser not to take the event and scroll the page.
|
|
}
|
|
|
|
/* We try the CockpitSpace. */
|
|
|
|
container = canvas.cockpitSpace.getContainer({ x: point.x, y: point.y })
|
|
|
|
if (container !== undefined && container.isWheelable === true) {
|
|
container.eventHandler.raiseEvent('onMouseWheel', event)
|
|
return false // This instructs the browser not to take the event and scroll the page.
|
|
}
|
|
|
|
/* Chart Space. */
|
|
|
|
container = canvas.chartSpace.getContainer({ x: point.x, y: point.y }, GET_CONTAINER_PURPOSE.MOUSE_WHEEL)
|
|
if (container !== undefined && container.isWheelable === true) {
|
|
container.eventHandler.raiseEvent('onMouseWheel', event)
|
|
return false // This instructs the browser not to take the event and scroll the page.
|
|
}
|
|
|
|
if (container !== undefined) {
|
|
viewPort.applyZoom(delta)
|
|
return false
|
|
}
|
|
|
|
/* We try second with floating objects. */
|
|
|
|
container = canvas.floatingSpace.getContainer({ x: point.x, y: point.y })
|
|
|
|
if (container !== undefined && container.isWheelable === true) {
|
|
container.eventHandler.raiseEvent('onMouseWheel', event)
|
|
return false // This instructs the browser not to take the event and scroll the page.
|
|
}
|
|
|
|
return false
|
|
} catch (err) {
|
|
if (ERROR_LOG === true) { logger.write('[ERROR] onMouseWheel -> err = ' + err.stack) }
|
|
}
|
|
}
|
|
|
|
function deactivateDragging (event) {
|
|
try {
|
|
if (containerDragStarted || viewPortBeingDragged || floatingObjectDragStarted) {
|
|
thisObject.eventHandler.raiseEvent('Drag Finished', undefined)
|
|
}
|
|
|
|
if (
|
|
containerDragStarted ||
|
|
floatingObjectDragStarted ||
|
|
viewPortBeingDragged
|
|
) {
|
|
ignoreNextClick = true
|
|
}
|
|
/* Turn off all the possible things that can be dragged. */
|
|
|
|
containerDragStarted = false
|
|
floatingObjectDragStarted = false
|
|
viewPortBeingDragged = false
|
|
|
|
if (containerBeingDragged !== undefined) {
|
|
containerBeingDragged.eventHandler.raiseEvent('onDragFinished', event)
|
|
containerBeingDragged = undefined
|
|
}
|
|
|
|
browserCanvas.style.cursor = 'auto'
|
|
} catch (err) {
|
|
if (ERROR_LOG === true) { logger.write('[ERROR] deactivateDragging -> err = ' + err.stack) }
|
|
}
|
|
}
|
|
|
|
function checkDrag (event) {
|
|
try {
|
|
if (containerDragStarted === true || floatingObjectDragStarted === true || viewPortBeingDragged === true) {
|
|
let point = {
|
|
x: event.pageX,
|
|
y: event.pageY - CURRENT_TOP_MARGIN
|
|
}
|
|
|
|
browserCanvas.style.cursor = 'grabbing'
|
|
thisObject.eventHandler.raiseEvent('Dragging', undefined)
|
|
|
|
if (containerDragStarted || viewPortBeingDragged) {
|
|
/* The parameters received have been captured with zoom applied. We must remove the zoom in order to correctly modify the displacement. */
|
|
|
|
let downCopy = {
|
|
x: dragVector.downX,
|
|
y: dragVector.downY
|
|
}
|
|
|
|
let downCopyNoTransf
|
|
downCopyNoTransf = viewPort.unzoomThisPoint(downCopy)
|
|
// downCopyNoTransf = containerBeingDragged.zoom.unzoomThisPoint(downCopyNoTransf);
|
|
|
|
let upCopy = {
|
|
x: dragVector.upX,
|
|
y: dragVector.upY
|
|
}
|
|
|
|
let upCopyNoTranf
|
|
upCopyNoTranf = viewPort.unzoomThisPoint(upCopy)
|
|
|
|
let displaceVector = {
|
|
x: dragVector.upX - dragVector.downX,
|
|
y: dragVector.upY - dragVector.downY
|
|
}
|
|
|
|
if (viewPortBeingDragged) {
|
|
viewPort.displace(displaceVector)
|
|
}
|
|
|
|
if (containerBeingDragged !== undefined) {
|
|
let moveSucceed = containerBeingDragged.displace(displaceVector)
|
|
if (moveSucceed === false) {
|
|
deactivateDragging(event)
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Finally we set the starting point of the new dragVector at this current point. */
|
|
|
|
dragVector.downX = dragVector.upX
|
|
dragVector.downY = dragVector.upY
|
|
}
|
|
} catch (err) {
|
|
if (ERROR_LOG === true) { logger.write('[ERROR] checkDrag -> err = ' + err.stack) }
|
|
}
|
|
}
|
|
}
|
|
|