dreemgl/apps/flowgraph/block.js

DreemGL is an open-source multi-screen prototyping framework for mediated environments, with a visual editor and shader styling for webGL and DALi runtimes written in JavaScript. As a toolkit for gpu-accelerated multiscreen development, DreemGL includes

/* DreemGL is a collaboration between Teeming Society & Samsung Electronics, sponsored by Samsung and others.
   Copyright 2015-2016 Teeming Society. Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing,
   software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and limitations under the License.*/

define.class('$ui/view', function(require,
								  $system$parse$, astscanner,
								  $ui$, view, icon, treeview, cadgrid, label, button, textbox,
								  $$, ballbutton, renameblockdialog){

	this.cursor = "move"
	this.position = "absolute"
	this.bgcolor = vec4("#3b3b3b" )
	this.padding = 0
	this.borderradius = 10
	this.borderwidth = 2
	this.bordercolor = vec4("#727272")

	function uppercaseFirst (inp) {
		if (!inp || inp.length == 0) return inp
		return inp.charAt(0).toUpperCase() + inp.slice(1)
	}

	// the style classes

	this.hovertext = ""

	this.mainwidth = 250

	this.style = {
		label_head: {bgcolor: NaN,margin: vec4(6,3,4,0), bold: true},
		view_main: {bgcolor: "#292929", width: this.mainwidth, flex: 1, margin: 1,justifycontent: "center"},
		view_header: {width: this.mainwidth, bgcolor: NaN, flex: 1, justifycontent: "space-between"},

		button_header: {buttoncolor2: "transparent", buttoncolor1: "transparent", bordercolor: "transparent", marginright: 4},
		view_between1: {bgcolor: NaN, width: this.mainwidth, flex: 1, justifycontent: "space-between"},
		view_between2: {bgcolor: NaN, position: "relative", x: 8,alignself: "flex-start", flexdirection: "column"},
		view_head: {bgcolor: NaN, position: "relative", x: -8,alignself: "flex-start", flexdirection: "column"},
		view_addbuttons: {flexdirection: "row", position: "absolute",alignitems: "stretch",width: 140, bgcolor: NaN, justifycontent: "space-between"}
	}

	this.attributes = {
		flowdata: {},
		//pos: Config({persist: true}),
		inputattributes: Config({type: Object, value: ["color"]}),
		outputattributes: Config({type: Object, value: ["clicked","something"]}),
		title: Config({type: String, value: "Untitled"}),
		snap: Config({type: int, value: 1}),
		bordercolor: Config({motion: "linear", duration: 0.1}),
		borderselected: Config({type: float, value: 0, motion: "linear", duration: 0.1}),
		focusbordercolor: Config({motion: "linear", duration: 0.1, type: vec4, value: "#d0d0d0", meta: "color"}),
		hoverbordercolor: Config({motion: "linear", duration: 0.1, type: vec4, value: "#e0e0e0", meta: "color"}),
		inselection : Config({type: boolean, value: false}),
		editables: [],
		nodeprops:{},
		showscreenbutton:false,
		inputs: [{name: "a0", title: "test input!", color: vec4("blue")}],
		outputs: [{name: "b1", title: "output? ", color: vec4("yellow")}]
	}

	this.colormap = {
		Number: vec4("#FFA500"),
		bool: vec4("#EE8280"),
		bool32: vec4("#EE8280"),
		Boolean: vec4("#EE8280"),
		BooleanLike: vec4("#EE8280"),
		int: vec4("#FF0080"),
		int32: vec4("#FF0080"),
		IntLike: vec4("#FF0080"),
		float32: vec4("#D23641"),
		float: vec4("#D23641"),
		FloatLike: vec4("#D23641"),
		Array: vec4("#0198E1"),
		vec4: vec4("#4FD5D6"),
		vec3: vec4("#31C3E7"),
		vec2: vec4("#BF5FFF"),
		String: vec4("#6ADA7A"),
		Object: vec4("#ffee14")
	}

	this.tooltip = 'issablock'
	this.oninputs = function() {
		for (var i = 0; i < this.inputs.length; i++){
			var inp = this.inputs[i]
			if (inp.type && this.colormap[inp.type.name]){
				inp.color = this.colormap[inp.type.name]
			} else {
				inp.color = vec4("gray")
			}
		}
	}


	this.onoutputs = function(){
		for (var i = 0;i<this.outputs.length;i++){
			var outp = this.outputs[i]
			if (outp.type && this.colormap[outp.type.name]){
				outp.color = this.colormap[outp.type.name]
			} else {
				outp.color = vec4("gray")
			}
		}
	}

	this.bordercolorfn = function(pos){
		var check = (int(mod(0.34*( gl_FragCoord.x + gl_FragCoord.y ),2.)) == 1)?1.0: 0.0
		return mix(bordercolor, mix(vec4(focusbordercolor.xyz*.8,1.0), focusbordercolor, check), borderselected)
		return vec4(check)
	}

	this.inselection = function(){
		this.updatecolor()
	}

	this.updatecolor = function(){
		if (this._inselection) {
			this.bordercolor = this.focusbordercolor
			this.borderselected = 1
		} else {
			this.borderselected = 0
			if (this.over){
				this.bordercolor = this.hoverbordercolor
			} else {
				this.bordercolor = this.neutralbordercolor
			}
		}
	}


	this.move = function(x,y) {
		var nx = this.pos[0] + x
		var ny = this.pos[1] + y
		if (nx<0) nx = 0
		if (ny<0) ny = 0
		this.pos = vec2(Math.round(nx),Math.round(ny))
		var fg = this.find("flowgraph")
		fg.setActiveBlock(this)
		fg.updateConnections()

	}

	this.keydownUparrow = function(){this.move(0,-1);}
	this.keydownDownarrow = function(){this.move(0,1);}
	this.keydownLeftarrow = function(){this.move(-1,0);}
	this.keydownRightarrow = function(){this.move(1,0);}
	this.keydownUparrowShift = function(){this.move(0,-10);}
	this.keydownDownarrowShift = function(){this.move(0,10);}
	this.keydownLeftarrowShift = function(){this.move(-10,0);}
	this.keydownRightarrowShift = function(){this.move(10,0);}

	this.keydownDelete = function(){
		var fg = this.find("flowgraph")
		fg.removeBlock(this)
	}

	this.keydown = function(v){
		this.defaultKeyboardHandler(v)
	}

	this.init = function(){
		this.neutralbordercolor = this.bordercolor
		this.find("flowgraph").allblocks.push(this)
	}

	this.destroy = function(){
		fg = this.find("flowgraph")
		if (fg){
			var index = fg.allblocks.indexOf(this)
			if (index > -1) fg.allblocks.splice(index, 1)
		}
	}

	this.setupMove = function(){
		this.startx = this.pos[0]
		this.starty = this.pos[1]
		//console.log(this.pos)
	}

	this.updateMove = function(dx, dy, snap){
		var x = Math.floor((this.startx+dx)/snap)*this.snap
		var y = Math.floor((this.starty+dy)/snap)*this.snap
		this.pos = vec2(x,y)
	}

	this.pointerstart = function(event){
		//this.moveToFront()
		var props = this.find("mainproperties")
		if (props) props.target = this.name
		var	fg = this.find("flowgraph")
		if (!this.screen.keyboard.shift && !fg.inSelection(this)){
			fg.clearSelection()
		}
		if (this.screen.keyboard.shift && fg.inSelection(this)){
			fg.removeFromSelection(this)
			fg.updateSelectedItems()
			return
		}
		fg.setActiveBlock(this)
		fg.updateSelectedItems()
		fg.setupSelectionMove()
	}

	this.pointermove = function(event){
		this.find("flowgraph").moveSelected(event.delta[0], event.delta[1], false)
	}

	this.pointerend = function(event){
		var x = Math.floor(this.pos[0]/this.snap)*this.snap
		var y = Math.floor(this.pos[1]/this.snap)*this.snap
		this.pos = vec2(x,y)
		this.redraw()
		this.relayout()
		this.find("flowgraph").moveSelected(event.delta[0], event.delta[1], true)
	}

	this.over = false

	this.pointerover = function(){
		if (!this.over) {
			var fg = this.find("flowgraph")
			fg.inspect = this
		}

		this.over = true
		this.screen.status = this.hovertext
		this.updatecolor()
	}

	this.pointerout = function(){
		this.over = false
		this.updatecolor()
	}

	this.flexdirection = "column"

	this.layout = function(){
		var ab = this.findChild("addbuttons")
		if (ab){
			ab.y = this._layout.height + 2
		}
	}

	define.class(this, "inputbutton", "$ui/view", function($ui$, view, label){
		//this.drawtarget = 'pick'

		this.attributes = {
			color: Config({type: vec4, value: vec4(0,0,0,0), meta: "color"}),
			name: "thing",
			title: "tadaa",
			type: ""
		}

		this.marginbottom = 4

		this.tapped = function(){
			var	bl = this.parent.parent.parent
			var	fg = this.find("flowgraph")
			fg.setConnectionEndpoint(bl.name, this.name, this.type, bl.type)
		}

		this.pointerover  = function(){
			this.screen.status = this.hovertext
		}

		this.render = function(){
			this.hovertext = "Input " + this.title+ (this.type?(": "+ this.type): "")
			return [
				ballbutton({borderwidth: 2, bgcolor: this.color, click: this.tapped.bind(this), alignself: "center"}),
				label({marginleft: 5, text: uppercaseFirst(this.title), bgcolor: NaN, alignself: "center"})
			]
		}
	})

	define.class(this, "outputbutton", "$ui/view", function($ui$, view, label){
		//this.drawtarget = 'pick'

		this.flexdirection = 'row'
		this.bgcolor = NaN
		this.flex = 1
		this.width = 120
		this.justifycontent = "flex-end"

		this.attributes = {
			color: Config({type: vec4, value: vec4(0,0,0,0), meta: "color"}),
			name: "thing",
			title: "thing",
			type: ""
		}

		this.pointerover  = function(){
			this.screen.status = this.hovertext
		}

		this.tapped = function(){
			var	bl = this.parent.parent.parent
			var	fg = this.find("flowgraph")
			fg.setConnectionStartpoint(bl.name, this.name, this.type)
		}

		this.marginbottom = 4

		this.render = function(){
				this.hovertext = "Output " + this.title+ (this.type?(": "+ this.type): "")

			return [
				label({text: uppercaseFirst(this.name), bgcolor: NaN, alignself: "center", align: "right", marginright: 5, flex: 0}),
				ballbutton({flex:0, borderwidth: 2, bgcolor: this.color, click: this.tapped.bind(this), alignself: "center"})
			]
		}
	})

	this.renderInputs = function(){
		var res = []
		for(var i = 0;i<this.inputs.length;i++){
			var inp = this.inputs[i]
			res.push(this.inputbutton({name: inp.name, type: inp.type.name, title: inp.title, color: inp.color}))
		}
		return res
	}

	this.renderOutputs = function(){
		var res = []
		for(var i = 0;i<this.outputs.length;i++){
			var outp = this.outputs[i]
			res.push(this.outputbutton({name: outp.name, type: outp.type.name, title: outp.title, color: outp.color}))
		}
		return res
	}

	this.renameBlock = function(e){
		this.screen.openModal(function(){
			return renameblockdialog({oldname: this.name, width: this.screen.size[0],height: this.screen.size[1],
				position: "absolute",
				x: e.value.x,
				y: e.value.y + 20,
				blur: function(){
					this.screen.closeModal(false)

			}} )

		}.bind(this)).then(function(res){

			if (res){
				this.find("flowgraph").setBlockName(this, res)
			}
		}.bind(this))

	}

	this.removeBlock = function(){
		this.find("flowgraph").removeBlock(this)
	}

	this.render = function(){

		var editors = [];

		for (var i=0;i<this._editables.length;i++) {
			var editable = this._editables[i];

			var ast = new astscanner(this.nodeprops,[{type:"Property", name:editable.name}])
			var value;
			if (ast.atindex > -1 && ast.atparent && ast.atparent.keys) {
				var found = ast.atparent.keys[ast.atindex]
				if (found && found.value) {
					value = found.value.value
				}
			}

			editors.push(view({flex:1, alignitems:"center"},
				label({flex:0.25, margin:vec4(10,5,10,5), bold:true, text:editable.title + ":"}),
				textbox({flex:3,
					multiline:false,
					fgcolor:vec4(0.8,0.8,0.8,1),
					paddingleft:5,
					originalvalue:value,
					editablename:editable.name,
					value:value,
					onfocus: function(ev,v,o) {
						if (!v && o._value && o._value != o._originalvalue) {
							var fg = this.find("flowgraph")
							if (fg && fg.sourceset) {
								var editablename = o._editablename;
								fg.sourceset.fork(function(src) {
									var ast = new astscanner(this.nodeprops,[{type:"Property", name:editablename}])
									var value;
									if (ast.atindex > -1 && ast.atparent && ast.atparent.keys) {
										var found = ast.atparent.keys[ast.atindex]
										if (found && found.value) {
											value = found.value;
											value.raw = '"' + o._value + '"';
											value.value = o._value
										}
									} else {
										ast.at.keys.push({
											key:{
												type:"Property",
												name:editablename
											},
											value:{
												type:"Value",
												kind:"string",
												raw:'"' +  o._value + '"',
												value: o._value
											}})
									}
								}.bind(this))
							}
						}
					}.bind(this)})));
		}

		var screenbutton;
		if (this.showscreenbutton) {
			screenbutton = [
				button({
					class: "header",
					icon: "desktop",
					click: function(e){
						var comp = this.screen.locationhash.composition;
						if (comp) {
							var ext = ".js"
							var location = define.expandVariables(comp)
							if (location.lastIndexOf(ext) === location.length - ext.length) {
								location = location.substring(0, location.length - ext.length)
								if (this.name) {
									location = location + "?" + this.name
								}
								window.open(location,'_blank');
							}

						}
					}.bind(this)}),
			]
		}

		return [
			view({class: 'header',alignitems: "center" }
				,view({bgcolor: NaN, justifycontent: "center", alignitems: "center" }
					,label({text: this.title,class: 'head'})
					,button({
						class: "header",
						icon: "pencil",
						click: function(e){this.renameBlock(e);}.bind(this)}),
					screenbutton
				)
				,button({class: "header", icon: "remove",click: function(e){this.removeBlock(e);}.bind(this)})
			)
			,view({class: 'main', bgcolor:vec4(0.2,0.3,0.3,0.5)},
				editors
			)
			,view({class: 'between1'}
				,view({class: 'head',render: function(){return this.renderInputs()}.bind(this)}

				)
				,view({class: 'between2', flexdirection: 'column', render: function(){return this.renderOutputs()}.bind(this)}

				)
			)
		]
	}
})