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/* <copyright>
This file contains proprietary software owned by Motorola Mobility, Inc.<br/>
No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.<br/>
(c) Copyright 2011 Motorola Mobility, Inc. All Rights Reserved.
</copyright> */
////////////////////////////////////////////////////////////////////////
//
var Montage = require("montage/core/core").Montage,
Component = require("montage/ui/component").Component;
////////////////////////////////////////////////////////////////////////
//Exporting as ColorWheel
exports.GradientPicker = Montage.create(Component, {
////////////////////////////////////////////////////////////////////
//
hasTemplate: {
enumerable: true,
value: true
},
////////////////////////////////////////////////////////////////////
//
_updating: {
enumerable: false,
value: false
},
////////////////////////////////////////////////////////////////////
//
_value: {
enumerable: false,
value: null
},
////////////////////////////////////////////////////////////////////
//
value: {
enumerable: true,
get: function() {
return this._value;
},
set: function(value) {
this._value = value;
}
},
////////////////////////////////////////////////////////////////////
//
_mode: {
enumerable: false,
value: 'linear'
},
////////////////////////////////////////////////////////////////////
//
mode: {
enumerable: true,
get: function() {
return this._mode;
},
set: function(value) {
this.application.ninja.colorController.colorPopupManager.hideColorChipPopup();
//
this._mode = value;
//
this._dispatchEvent('change', false);
}
},
////////////////////////////////////////////////////////////////////
//
prepareForDraw: {
enumerable: false,
value: function() {
//
}
},
////////////////////////////////////////////////////////////////////
//
willDraw: {
enumerable: false,
value: function() {
//Getting component views from layout
this.element._components = {trackCover: this.element.getElementsByClassName('cp_gp_slider')[0].getElementsByClassName('cover')[0], gradientTrack: this.element.getElementsByClassName('cp_gp_slider')[0].getElementsByClassName('track')[0], stopsContainer: this.element.getElementsByClassName('cp_gp_slider')[0].getElementsByClassName('chips')[0]};
this.element._trackWidth = parseInt(getComputedStyle(this.element._components.stopsContainer).getPropertyCSSValue('width').cssText);
//TODO: Fix events and remove this hack
this.element._components.trackCover.addEventListener('mouseover', function () {
if (!this._updating) {
this.element._components.trackCover.style.display = 'none';
}
}.bind(this), true);
//
this.element.getElementsByClassName('cp_gp_linear')[0].addEventListener('change', function (e){
this.mode = 'linear';
}.bind(this), true);
//
this.element.getElementsByClassName('cp_gp_radial')[0].addEventListener('change', function (e){
this.mode = 'radial';
}.bind(this), true);
}
},
////////////////////////////////////////////////////////////////////
//
draw: {
enumerable: false,
value: function() {
//
if (this.mode === 'linear') {
this.element.getElementsByClassName('cp_gp_linear')[0].checked = 'true';
} else if (this.mode === 'radial') {
this.element.getElementsByClassName('cp_gp_radial')[0].checked = 'true';
}
//
if (!this.value) {
this.addDefaultStops();
} else {
//Temp holder
var stops = this.value;
//Adding stops from preset value
for (var i=0; stops[i]; i++) {
this.addStop({color: {mode: stops[i].mode, value: stops[i].value}, percent:stops[i].position}, true);
}
}
}
},
////////////////////////////////////////////////////////////////////
//
didDraw: {
enumerable: false,
value: function() {
//
this.element._components.gradientTrack.addEventListener('click', this, false);
////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////
//TODO: Determing a better way to get screen position
var element = this.element._components.gradientTrack;
this.element._trackX = 0, this.element._trackY = 0;
//
while (element && !isNaN(element.offsetLeft) && !isNaN(element.offsetTop)) {
this.element._trackX += element.offsetLeft - element.scrollLeft;
this.element._trackY += element.offsetTop - element.scrollTop;
element = element.parentNode;
}
////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////
//This is forever changing, not sure why
//console.log(this.element._trackX, this.element._trackY);
}
},
////////////////////////////////////////////////////////////////////
//
addDefaultStops: {
enumerable: false,
value: function() {
this.addStop({color: {mode: 'rgb', value: {r: 255, g: 255, b: 255, a: 1, css: 'rgb(255, 255, 255)'}}, percent: 0}, true);
this.addStop({color: {mode: 'rgb', value: {r: 0, g: 0, b: 0, a: 1, css: 'rgb(0, 0, 0)'}}, percent: 100}, true);
}
},
////////////////////////////////////////////////////////////////////
//
addStop: {
enumerable: false,
value: function(data, silent) {
if (this.application.ninja.colorController.colorPopupManager) {
//Hiding any open popups (of gradient buttons)
this.application.ninja.colorController.colorPopupManager.hideColorChipPopup();
//Creating stop elements
var stop = document.createElement('div'),
holder = document.createElement('div'),
tooltip = document.createElement('span'),
button = document.createElement('button');
//Setting up elements
stop.appendChild(tooltip);
stop.appendChild(holder);
holder.appendChild(button);
//Adding events to the stops
stop.addEventListener('mousedown', this, false);
stop.addEventListener('mouseup', this, false);
//Storing refereces to buttons and actual stop container
button.stop = stop;
stop.button = button;
//Adding stop to container
this.element._components.stopsContainer.appendChild(stop);
//Checking for bounds to add stop
if (data.percent >= 0 && data.percent <= 100) {
this.positionStop(stop, data.percent);
button.stopPosition = data.percent;
}
//Creating an instance of input chip
this.application.ninja.colorController.addButton('chip', button);
//Initialing button with color data
button.color(data.color.mode, data.color.value);
//Button popup data
button.props = {side: 'top', align: 'center', nocolor: false, wheel: true, palette: true, gradient: false, image: false, offset: -84, panel: true};
//Listening for color events from button
button.addEventListener('change', this, false);
//Dispatching event depending on type of mode
if (!silent) {
this._dispatchEvent('change', false);
} else {
this._dispatchEvent('change', true);
}
//
} else {
//Handle Error
}
}
},
////////////////////////////////////////////////////////////////////
//
removeStop: {
enumerable: false,
value: function(stop) {
var i, buttons = this.element._components.stopsContainer.getElementsByTagName('button');
//
if (buttons.length > 2) {
//Removing stops
this.element._components.stopsContainer.removeChild(stop);
//Stopping events related to this current stop
this.removeStopMoving();
}
}
},
////////////////////////////////////////////////////////////////////
//
removeStopMoving: {
enumerable: false,
value: function() {
this._updating = false;
this.element._components.trackCover.style.display = 'none';
this._dispatchEvent('change', false);
document.removeEventListener('mousemove', this, false);
document.removeEventListener('mouseup', this, false);
}
},
////////////////////////////////////////////////////////////////////
//
positionStop: {
enumerable: false,
value: function(stop, percent) {
try {
if (percent<0) {
percent = 0;
} else if (percent>100) {
percent = 100;
}
////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////
//TODO: toggling visibility because of a browser bug
stop.style.visibility = 'hidden'; //TODO: To be removed
var adj = (parseInt(getComputedStyle(stop).getPropertyCSSValue('width').cssText)*percent/100)/this.element._trackWidth;
stop.style.left = Math.round(percent-Math.round(adj*100))+'%';
stop.button.stopPosition = percent;
stop.style.visibility = 'visible'; //TODO: To be removed
////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////
} catch (e) {
//TEMP
}
}
},
////////////////////////////////////////////////////////////////////
//TODO: Add color detection canvas to get actual color
handleClick: {
enumerable: false,
value: function(e) {
//Logic to get color from canvas data would go here
var data = {};
data.mode = 'rgb';
data.value = {r: 100, g: 100, b: 100, a: 1, css: 'rgb(100, 100, 100)'};
//
this.addStop({color: data, percent: Math.round(100*(e._event.offsetX/e._event.target.offsetWidth))});
}
},
////////////////////////////////////////////////////////////////////
//
handleMouseup: {
enumerable: false,
value: function(e) {
this.removeStopMoving();
}
},
////////////////////////////////////////////////////////////////////
//
handleMousedown: {
enumerable: false,
value: function(e) {
//
var i, buttons = this.element._components.stopsContainer.getElementsByTagName('button');
this.currentStop = e._event.target.stop;
//Looping through other stops to swap depths
for (i=0; buttons[i]; i++) {
buttons[i].stop.style.zIndex = 1;
}
//Setting the depth of the current button to the highest
this.currentStop.style.zIndex = buttons.length+1;
//Adding events for actions while moving
document.addEventListener('mousemove', this, false);
document.addEventListener('mouseup', this, false);
}
},
////////////////////////////////////////////////////////////////////
//
handleMousemove: {
enumerable: false,
value: function(e) {
//
this._updating = true;
//
this.application.ninja.colorController.colorPopupManager.hideColorChipPopup();
//
if ((e._event.y+this.hack.y) > this.element._trackY+70 || (e._event.y+this.hack.y) < this.element._trackY) {
this.removeStop(this.currentStop);
}
//
if (this.currentStop.button.stopPosition !== Math.round(((e._event.x+this.hack.x)-(this.element._trackX-23))/this.element._trackWidth*100)) {
this.element._components.trackCover.style.display = 'block';
}
//
this.positionStop(this.currentStop, Math.round(((e._event.x+this.hack.x)-(this.element._trackX-23))/this.element._trackWidth*100));
}
},
////////////////////////////////////////////////////////////////////
//
handleChange: {
enumerable: false,
value: function(e) {
this.application.ninja.colorController.colorView.colorManager.input = this.application.ninja.colorController.colorView.previousInput;
this._dispatchEvent('change', false);
this.application.ninja.colorController.colorView.colorManager.input = 'chip';
}
},
////////////////////////////////////////////////////////////////////
//Dispatching custom event
_dispatchEvent: {
value: function(type, userInitiated) {
//
var actionEvent = document.createEvent("CustomEvent"), buttons = this.element._components.stopsContainer.getElementsByTagName('button'), stops = [], css, previewCss = '-webkit-gradient(linear, left top, right top';
//Preventing an events of less than 2 stops since there'll be a reset
if (buttons.length < 2) {
return;
}
//Initializing CSS string
if (this.mode === 'radial') {
css = '-webkit-radial-gradient(center, ellipse cover';
} else {
css = '-webkit-gradient(linear, left top, right top';
}
//Creating stops array
for (var i=0; i < buttons.length; i++) {
stops.push({value: buttons[i].colorValue, mode: buttons[i].colorMode, position: buttons[i].stopPosition});
}
//Sorting array (must be sorted for radial gradients, at least in Chrome
stops.sort(function(a,b){return a.position - b.position});
//Looping through stops in gradient to create CSS (actual and preview)
for (var i=0; i < stops.length; i++) {
//Addint to CSS String
if (this.mode === 'radial' && stops[i].value) {
css += ', '+stops[i].value.css+' '+stops[i].position+'% ';
//The CSS string for the preview bar is always linear
previewCss += ', color-stop('+stops[i].position+'%,'+stops[i].value.css+')';
} else if (stops[i].value){
css += ', color-stop('+stops[i].position+'%,'+stops[i].value.css+')';
//The CSS string for the preview bar is always linear
previewCss += ', color-stop('+stops[i].position+'%,'+stops[i].value.css+')';
} else {
//
}
}
//Closing the CSS strings
css += ')';
previewCss += ')';
//console.log(previewCss);
//Setting the preview track background
this.element._components.gradientTrack.style.background = previewCss;
//Storing the stops
this.value = stops;
//Initializing and storing data for event
actionEvent.initEvent(type, true, true);
actionEvent.type = type;
actionEvent.wasSetByCode = userInitiated;
actionEvent.gradient = {stops: this.value, mode: this.mode, gradientMode: this.mode, css: css};
this.dispatchEvent(actionEvent);
}
}
////////////////////////////////////////////////////////////////////
});
|