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/*
* Copyright (C) 2011 Brian Grinstead 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.
* 3. Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE 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 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.
*/
/**
* @constructor
* @extends {WebInspector.VBox}
*/
WebInspector.Spectrum = function()
{
/**
* @param {!Element} parentElement
*/
function appendSwitcherIcon(parentElement)
{
var icon = parentElement.createSVGChild("svg");
icon.setAttribute("height", 16);
icon.setAttribute("width", 16);
var path = icon.createSVGChild("path");
path.setAttribute("d", "M5,6 L11,6 L8,2 Z M5,10 L11,10 L8,14 Z");
return icon;
}
WebInspector.VBox.call(this, true);
this.registerRequiredCSS("elements/spectrum.css");
this.contentElement.tabIndex = 0;
this._colorElement = this.contentElement.createChild("div", "spectrum-color");
this._colorDragElement = this._colorElement.createChild("div", "spectrum-sat fill").createChild("div", "spectrum-val fill").createChild("div", "spectrum-dragger");
var contrastRatioSVG = this._colorElement.createSVGChild("svg", "spectrum-contrast-container fill");
this._contrastRatioLine = contrastRatioSVG.createSVGChild("path", "spectrum-contrast-line");
var toolbar = new WebInspector.Toolbar(this.contentElement);
toolbar.element.classList.add("spectrum-eye-dropper");
this._colorPickerButton = new WebInspector.ToolbarButton(WebInspector.UIString("Toggle color picker"), "eyedropper-toolbar-item");
this._colorPickerButton.setToggled(true);
this._colorPickerButton.addEventListener("click", this._toggleColorPicker.bind(this, undefined));
toolbar.appendToolbarItem(this._colorPickerButton);
var swatchElement = this.contentElement.createChild("span", "swatch");
this._swatchInnerElement = swatchElement.createChild("span", "swatch-inner");
this._hueElement = this.contentElement.createChild("div", "spectrum-hue");
this._hueSlider = this._hueElement.createChild("div", "spectrum-slider");
this._alphaElement = this.contentElement.createChild("div", "spectrum-alpha");
this._alphaElementBackground = this._alphaElement.createChild("div", "spectrum-alpha-background");
this._alphaSlider = this._alphaElement.createChild("div", "spectrum-slider");
var displaySwitcher = this.contentElement.createChild("div", "spectrum-display-switcher spectrum-switcher");
appendSwitcherIcon(displaySwitcher);
displaySwitcher.addEventListener("click", this._formatViewSwitch.bind(this));
// RGBA/HSLA display.
this._displayContainer = this.contentElement.createChild("div", "spectrum-text source-code");
this._textValues = [];
for (var i = 0; i < 4; ++i) {
var inputValue = this._displayContainer.createChild("input", "spectrum-text-value");
inputValue.maxLength = 4;
this._textValues.push(inputValue);
inputValue.addEventListener("keydown", this._inputChanged.bind(this), false);
inputValue.addEventListener("input", this._inputChanged.bind(this), false);
inputValue.addEventListener("mousewheel", this._inputChanged.bind(this), false);
}
this._textLabels = this._displayContainer.createChild("div", "spectrum-text-label");
// HEX display.
this._hexContainer = this.contentElement.createChild("div", "spectrum-text spectrum-text-hex source-code");
this._hexValue = this._hexContainer.createChild("input", "spectrum-text-value");
this._hexValue.maxLength = 7;
this._hexValue.addEventListener("keydown", this._inputChanged.bind(this), false);
this._hexValue.addEventListener("input", this._inputChanged.bind(this), false);
this._hexValue.addEventListener("mousewheel", this._inputChanged.bind(this), false);
var label = this._hexContainer.createChild("div", "spectrum-text-label");
label.textContent = "HEX";
WebInspector.installDragHandle(this._hueElement, dragStart.bind(this, positionHue.bind(this)), positionHue.bind(this), null, "default");
WebInspector.installDragHandle(this._alphaElement, dragStart.bind(this, positionAlpha.bind(this)), positionAlpha.bind(this), null, "default");
WebInspector.installDragHandle(this._colorElement, dragStart.bind(this, positionColor.bind(this)), positionColor.bind(this), null, "default");
this.element.classList.add("palettes-enabled");
/** @type {!Map.<string, !WebInspector.Spectrum.Palette>} */
this._palettes = new Map();
this._palettePanel = this.contentElement.createChild("div", "palette-panel");
this._palettePanelShowing = false;
this._paletteContainer = this.contentElement.createChild("div", "spectrum-palette");
this._paletteContainer.addEventListener("contextmenu", this._showPaletteColorContextMenu.bind(this, -1));
WebInspector.installDragHandle(this._paletteContainer, this._paletteDragStart.bind(this), this._paletteDrag.bind(this), this._paletteDragEnd.bind(this), "default");
var paletteSwitcher = this.contentElement.createChild("div", "spectrum-palette-switcher spectrum-switcher");
appendSwitcherIcon(paletteSwitcher);
paletteSwitcher.addEventListener("click", this._togglePalettePanel.bind(this, true));
this._deleteIconToolbar = new WebInspector.Toolbar();
this._deleteIconToolbar.element.classList.add("delete-color-toolbar");
this._deleteButton = new WebInspector.ToolbarButton("", "garbage-collect-toolbar-item");
this._deleteIconToolbar.appendToolbarItem(this._deleteButton);
var overlay = this.contentElement.createChild("div", "spectrum-overlay fill");
overlay.addEventListener("click", this._togglePalettePanel.bind(this, false));
this._addColorToolbar = new WebInspector.Toolbar();
this._addColorToolbar.element.classList.add("add-color-toolbar");
var addColorButton = new WebInspector.ToolbarButton(WebInspector.UIString("Add to palette"), "add-toolbar-item");
addColorButton.addEventListener("click", this._addColorToCustomPalette.bind(this));
this._addColorToolbar.appendToolbarItem(addColorButton);
new WebInspector.Spectrum.PaletteGenerator(this._generatedPaletteLoaded.bind(this));
/**
* @param {function(!Event)} callback
* @param {!Event} event
* @return {boolean}
* @this {WebInspector.Spectrum}
*/
function dragStart(callback, event)
{
this._hueAlphaLeft = this._hueElement.totalOffsetLeft();
this._colorOffset = this._colorElement.totalOffset();
callback(event);
return true;
}
/**
* @param {!Event} event
* @this {WebInspector.Spectrum}
*/
function positionHue(event)
{
var hsva = this._hsv.slice();
hsva[0] = Number.constrain(1 - (event.x - this._hueAlphaLeft) / this._hueAlphaWidth, 0, 1);
this._innerSetColor(hsva, "", undefined, WebInspector.Spectrum._ChangeSource.Other);
}
/**
* @param {!Event} event
* @this {WebInspector.Spectrum}
*/
function positionAlpha(event)
{
var newAlpha = Math.round((event.x - this._hueAlphaLeft) / this._hueAlphaWidth * 100) / 100;
var hsva = this._hsv.slice();
hsva[3] = Number.constrain(newAlpha, 0, 1);
var colorFormat = undefined;
if (hsva[3] !== 1 && (this._colorFormat === WebInspector.Color.Format.ShortHEX || this._colorFormat === WebInspector.Color.Format.HEX || this._colorFormat === WebInspector.Color.Format.Nickname))
colorFormat = WebInspector.Color.Format.RGB;
this._innerSetColor(hsva, "", colorFormat, WebInspector.Spectrum._ChangeSource.Other);
}
/**
* @param {!Event} event
* @this {WebInspector.Spectrum}
*/
function positionColor(event)
{
var hsva = this._hsv.slice();
hsva[1] = Number.constrain((event.x - this._colorOffset.left) / this.dragWidth, 0, 1);
hsva[2] = Number.constrain(1 - (event.y - this._colorOffset.top) / this.dragHeight, 0, 1);
this._innerSetColor(hsva, "", undefined, WebInspector.Spectrum._ChangeSource.Other);
}
}
WebInspector.Spectrum._ChangeSource = {
Input: "Input",
Model: "Model",
Other: "Other"
}
WebInspector.Spectrum.Events = {
ColorChanged: "ColorChanged",
SizeChanged: "SizeChanged"
};
WebInspector.Spectrum._colorChipSize = 24;
WebInspector.Spectrum._itemsPerPaletteRow = 8;
WebInspector.Spectrum.prototype = {
_updatePalettePanel: function()
{
this._palettePanel.removeChildren();
var title = this._palettePanel.createChild("div", "palette-title");
title.textContent = WebInspector.UIString("Color Palettes");
var toolbar = new WebInspector.Toolbar(this._palettePanel);
var closeButton = new WebInspector.ToolbarButton("Return to color picker", "delete-toolbar-item");
closeButton.addEventListener("click", this._togglePalettePanel.bind(this, false));
toolbar.appendToolbarItem(closeButton);
for (var palette of this._palettes.values())
this._palettePanel.appendChild(this._createPreviewPaletteElement(palette));
},
/**
* @param {boolean} show
*/
_togglePalettePanel: function(show)
{
if (this._palettePanelShowing === show)
return;
if (show)
this._updatePalettePanel();
this._palettePanelShowing = show;
this.contentElement.classList.toggle("palette-panel-showing", show);
},
/**
* @param {string} colorText
* @param {number=} animationDelay
* @return {!Element}
*/
_createPaletteColor: function(colorText, animationDelay)
{
var element = createElementWithClass("div", "spectrum-palette-color");
element.style.background = String.sprintf("linear-gradient(%s, %s), url(Images/checker.png)", colorText, colorText);
if (animationDelay)
element.animate([{ opacity: 0 }, { opacity: 1 }], { duration: 100, delay: animationDelay, fill: "backwards" });
element.title = colorText;
return element;
},
/**
* @param {!WebInspector.Spectrum.Palette} palette
* @param {boolean} animate
* @param {!Event=} event
*/
_showPalette: function(palette, animate, event)
{
this._paletteContainer.removeChildren();
for (var i = 0; i < palette.colors.length; i++) {
var animationDelay = animate ? i * 100 / palette.colors.length : 0;
var colorElement = this._createPaletteColor(palette.colors[i], animationDelay);
colorElement.addEventListener("mousedown", this._paletteColorSelected.bind(this, palette.colors[i], palette.matchUserFormat));
if (palette.mutable) {
colorElement.__mutable = true;
colorElement.__color = palette.colors[i];
colorElement.addEventListener("contextmenu", this._showPaletteColorContextMenu.bind(this, i));
}
this._paletteContainer.appendChild(colorElement);
}
this._paletteContainerMutable = palette.mutable;
var numItems = palette.colors.length;
if (palette.mutable)
numItems++;
var rowsNeeded = Math.max(1, Math.ceil(numItems / WebInspector.Spectrum._itemsPerPaletteRow));
if (palette.mutable) {
this._paletteContainer.appendChild(this._addColorToolbar.element);
this._paletteContainer.appendChild(this._deleteIconToolbar.element);
} else {
this._addColorToolbar.element.remove();
this._deleteIconToolbar.element.remove();
}
this._togglePalettePanel(false);
var paletteColorHeight = 12;
var paletteMargin = 12;
this.element.style.height = (this._paletteContainer.offsetTop + paletteMargin + (paletteColorHeight + paletteMargin) * rowsNeeded) + "px";
this.dispatchEventToListeners(WebInspector.Spectrum.Events.SizeChanged);
},
/**
* @param {!Event} e
* @return {number}
*/
_slotIndexForEvent: function(e)
{
var localX = e.pageX - this._paletteContainer.totalOffsetLeft();
var localY = e.pageY - this._paletteContainer.totalOffsetTop();
var col = Math.min(localX / WebInspector.Spectrum._colorChipSize | 0, WebInspector.Spectrum._itemsPerPaletteRow - 1);
var row = (localY / WebInspector.Spectrum._colorChipSize) | 0;
return Math.min(row * WebInspector.Spectrum._itemsPerPaletteRow + col, this._customPaletteSetting.get().colors.length - 1);
},
/**
* @param {!Event} e
* @return {boolean}
*/
_isDraggingToBin: function(e)
{
return e.pageX > this._deleteIconToolbar.element.totalOffsetLeft();
},
/**
* @param {!Event} e
* @return {boolean}
*/
_paletteDragStart: function(e)
{
var element = e.deepElementFromPoint();
if (!element || !element.__mutable)
return false;
var index = this._slotIndexForEvent(e);
this._dragElement = element;
this._dragHotSpotX = e.pageX - (index % WebInspector.Spectrum._itemsPerPaletteRow) * WebInspector.Spectrum._colorChipSize;
this._dragHotSpotY = e.pageY - (index / WebInspector.Spectrum._itemsPerPaletteRow | 0) * WebInspector.Spectrum._colorChipSize;
this._deleteIconToolbar.element.classList.add("dragging");
return true;
},
/**
* @param {!Event} e
*/
_paletteDrag: function(e)
{
if (e.pageX < this._paletteContainer.totalOffsetLeft() || e.pageY < this._paletteContainer.totalOffsetTop())
return;
var newIndex = this._slotIndexForEvent(e);
var offsetX = e.pageX - (newIndex % WebInspector.Spectrum._itemsPerPaletteRow) * WebInspector.Spectrum._colorChipSize;
var offsetY = e.pageY - (newIndex / WebInspector.Spectrum._itemsPerPaletteRow | 0) * WebInspector.Spectrum._colorChipSize;
var isDeleting = this._isDraggingToBin(e);
this._deleteIconToolbar.element.classList.toggle("delete-color-toolbar-active", isDeleting);
var dragElementTransform = "translateX(" + (offsetX - this._dragHotSpotX) + "px) translateY(" + (offsetY - this._dragHotSpotY) + "px)";
this._dragElement.style.transform = isDeleting ? dragElementTransform + " scale(0.8)" : dragElementTransform;
var children = Array.prototype.slice.call(this._paletteContainer.children);
var index = children.indexOf(this._dragElement);
/** @type {!Map.<!Element, {left: number, top: number}>} */
var swatchOffsets = new Map();
for (var swatch of children)
swatchOffsets.set(swatch, swatch.totalOffset());
if (index !== newIndex)
this._paletteContainer.insertBefore(this._dragElement, children[newIndex > index ? newIndex + 1 : newIndex]);
for (var swatch of children) {
if (swatch === this._dragElement)
continue;
var before = swatchOffsets.get(swatch);
var after = swatch.totalOffset();
if (before.left !== after.left || before.top !== after.top) {
swatch.animate([
{ transform: "translateX(" + (before.left - after.left) + "px) translateY(" + (before.top - after.top) + "px)" },
{ transform: "none" }], { duration: 100, easing: "cubic-bezier(0, 0, 0.2, 1)" });
}
}
},
/**
* @param {!Event} e
*/
_paletteDragEnd: function(e)
{
if (this._isDraggingToBin(e))
this._dragElement.remove();
this._dragElement.style.removeProperty("transform");
var children = this._paletteContainer.children;
var colors = [];
for (var i = 0; i < children.length; ++i) {
if (children[i].__color)
colors.push(children[i].__color);
}
var palette = this._customPaletteSetting.get();
palette.colors = colors;
this._customPaletteSetting.set(palette);
this._showPalette(this._customPaletteSetting.get(), false);
this._deleteIconToolbar.element.classList.remove("dragging");
this._deleteIconToolbar.element.classList.remove("delete-color-toolbar-active");
this._deleteButton.setToggled(false);
},
/**
* @param {!WebInspector.Spectrum.Palette} generatedPalette
*/
_generatedPaletteLoaded: function(generatedPalette)
{
if (generatedPalette.colors.length)
this._palettes.set(generatedPalette.title, generatedPalette);
this._palettes.set(WebInspector.Spectrum.MaterialPalette.title, WebInspector.Spectrum.MaterialPalette);
/** @type {!WebInspector.Spectrum.Palette} */
var defaultCustomPalette = { title: "Custom", colors: [], mutable: true };
this._customPaletteSetting = WebInspector.settings.createSetting("customColorPalette", defaultCustomPalette);
this._palettes.set(this._customPaletteSetting.get().title, this._customPaletteSetting.get());
this._selectedColorPalette = WebInspector.settings.createSetting("selectedColorPalette", WebInspector.Spectrum.GeneratedPaletteTitle);
var paletteToShow = this._palettes.get(this._selectedColorPalette.get() || WebInspector.Spectrum.GeneratedPaletteTitle)
|| this._palettes.get("Material");
if (paletteToShow)
this._showPalette(paletteToShow, true);
},
/**
* @param {!WebInspector.Spectrum.Palette} palette
* @return {!Element}
*/
_createPreviewPaletteElement: function(palette)
{
var colorsPerPreviewRow = 5;
var previewElement = createElementWithClass("div", "palette-preview");
var titleElement = previewElement.createChild("div", "palette-preview-title");
titleElement.textContent = palette.title;
for (var i = 0; i < colorsPerPreviewRow && i < palette.colors.length; i++)
previewElement.appendChild(this._createPaletteColor(palette.colors[i]));
for (; i < colorsPerPreviewRow; i++)
previewElement.createChild("div", "spectrum-palette-color empty-color");
previewElement.addEventListener("click", this._paletteSelected.bind(this, palette));
return previewElement;
},
/**
* @param {!WebInspector.Spectrum.Palette} palette
*/
_paletteSelected: function(palette)
{
this._selectedColorPalette.set(palette.title);
this._showPalette(palette, true);
},
/**
* @param {string} colorText
* @param {boolean} matchUserFormat
*/
_paletteColorSelected: function(colorText, matchUserFormat)
{
var color = WebInspector.Color.parse(colorText);
if (!color)
return;
this._innerSetColor(color.hsva(), colorText, matchUserFormat ? this._colorFormat : color.format(), WebInspector.Spectrum._ChangeSource.Other);
},
_addColorToCustomPalette: function()
{
var palette = this._customPaletteSetting.get();
palette.colors.push(this.colorString());
this._customPaletteSetting.set(palette);
this._showPalette(this._customPaletteSetting.get(), false);
},
/**
* @param {number} colorIndex
* @param {!Event} event
*/
_showPaletteColorContextMenu: function(colorIndex, event)
{
if (!this._paletteContainerMutable)
return;
var contextMenu = new WebInspector.ContextMenu(event);
if (colorIndex !== -1) {
contextMenu.appendItem(WebInspector.UIString("Remove color"), this._deletePaletteColors.bind(this, colorIndex, false));
contextMenu.appendItem(WebInspector.UIString("Remove all to the right"), this._deletePaletteColors.bind(this, colorIndex, true));
}
contextMenu.appendItem(WebInspector.UIString("Clear palette"), this._deletePaletteColors.bind(this, -1, true));
contextMenu.show();
},
/**
* @param {number} colorIndex
* @param {boolean} toRight
*/
_deletePaletteColors: function(colorIndex, toRight)
{
var palette = this._customPaletteSetting.get();
if (toRight)
palette.colors.splice(colorIndex + 1, palette.colors.length - colorIndex - 1);
else
palette.colors.splice(colorIndex, 1);
this._customPaletteSetting.set(palette);
this._showPalette(this._customPaletteSetting.get(), false);
},
/**
* @param {!WebInspector.Color} color
* @param {string} colorFormat
*/
setColor: function(color, colorFormat)
{
this._originalFormat = colorFormat;
this._innerSetColor(color.hsva(), "", colorFormat, WebInspector.Spectrum._ChangeSource.Model);
},
/**
* @param {!Array<number>|undefined} hsva
* @param {string|undefined} colorString
* @param {string|undefined} colorFormat
* @param {string} changeSource
*/
_innerSetColor: function(hsva, colorString, colorFormat, changeSource)
{
if (hsva !== undefined)
this._hsv = hsva;
if (colorString !== undefined)
this._colorString = colorString;
if (colorFormat !== undefined) {
console.assert(colorFormat !== WebInspector.Color.Format.Original, "Spectrum's color format cannot be Original");
if (colorFormat === WebInspector.Color.Format.RGBA)
colorFormat = WebInspector.Color.Format.RGB;
else if (colorFormat === WebInspector.Color.Format.HSLA)
colorFormat = WebInspector.Color.Format.HSL;
this._colorFormat = colorFormat;
}
this._updateHelperLocations();
this._updateUI();
if (changeSource !== WebInspector.Spectrum._ChangeSource.Input)
this._updateInput();
if (changeSource !== WebInspector.Spectrum._ChangeSource.Model)
this.dispatchEventToListeners(WebInspector.Spectrum.Events.ColorChanged, this.colorString());
},
/**
* @param {!WebInspector.Color} color
*/
setContrastColor: function(color)
{
this._contrastColor = color;
this._updateUI();
},
/**
* @return {!WebInspector.Color}
*/
_color: function()
{
return WebInspector.Color.fromHSVA(this._hsv);
},
/**
* @return {string}
*/
colorString: function()
{
if (this._colorString)
return this._colorString;
var cf = WebInspector.Color.Format;
var color = this._color();
var colorString = color.asString(this._colorFormat);
if (colorString)
return colorString;
if (this._colorFormat === cf.Nickname || this._colorFormat === cf.ShortHEX) {
colorString = color.asString(cf.HEX);
if (colorString)
return colorString;
}
console.assert(color.hasAlpha());
return this._colorFormat === cf.HSL ? /** @type {string} */(color.asString(cf.HSLA)) : /** @type {string} */(color.asString(cf.RGBA));
},
_updateHelperLocations: function()
{
var h = this._hsv[0];
var s = this._hsv[1];
var v = this._hsv[2];
var alpha = this._hsv[3];
// Where to show the little circle that displays your current selected color.
var dragX = s * this.dragWidth;
var dragY = this.dragHeight - (v * this.dragHeight);
dragX = Math.max(-this._colorDragElementHeight,
Math.min(this.dragWidth - this._colorDragElementHeight, dragX - this._colorDragElementHeight));
dragY = Math.max(-this._colorDragElementHeight,
Math.min(this.dragHeight - this._colorDragElementHeight, dragY - this._colorDragElementHeight));
this._colorDragElement.positionAt(dragX, dragY);
// Where to show the bar that displays your current selected hue.
var hueSlideX = (1 - h) * this._hueAlphaWidth - this.slideHelperWidth;
this._hueSlider.style.left = hueSlideX + "px";
var alphaSlideX = alpha * this._hueAlphaWidth - this.slideHelperWidth;
this._alphaSlider.style.left = alphaSlideX + "px";
},
_updateInput: function()
{
var cf = WebInspector.Color.Format;
if (this._colorFormat === cf.HEX || this._colorFormat === cf.ShortHEX || this._colorFormat === cf.Nickname) {
this._hexContainer.hidden = false;
this._displayContainer.hidden = true;
if (this._colorFormat === cf.ShortHEX && this._color().canBeShortHex())
this._hexValue.value = this._color().asString(cf.ShortHEX);
else
this._hexValue.value = this._color().asString(cf.HEX);
} else {
// RGBA, HSLA display.
this._hexContainer.hidden = true;
this._displayContainer.hidden = false;
var isRgb = this._colorFormat === cf.RGB;
this._textLabels.textContent = isRgb ? "RGBA" : "HSLA";
var colorValues = isRgb ? this._color().canonicalRGBA() : this._color().canonicalHSLA();
for (var i = 0; i < 3; ++i) {
this._textValues[i].value = colorValues[i];
if (!isRgb && (i === 1 || i === 2))
this._textValues[i].value += "%";
}
this._textValues[3].value= Math.round(colorValues[3] * 100) / 100;
}
},
/**
* @param {number} requiredContrast
*/
_drawContrastRatioLine: function(requiredContrast)
{
if (!this._contrastColor || !this.dragWidth || !this.dragHeight)
return;
/** const */ var width = this.dragWidth;
/** const */ var height = this.dragHeight;
/** const */ var dS = 0.02;
/** const */ var epsilon = 0.01;
var fgRGBA = [];
WebInspector.Color.hsva2rgba(this._hsv, fgRGBA);
var fgLuminance = WebInspector.Color.luminance(fgRGBA);
var bgRGBA = this._contrastColor.rgba();
var bgLuminance = WebInspector.Color.luminance(bgRGBA);
var delta = fgLuminance < bgLuminance ? 1 : -1;
var lastV = this._hsv[2];
var currentSlope = 0;
var candidateHSVA = [this._hsv[0], 0, 0, this._hsv[3]];
var pathBuilder = [];
var candidateRGBA = [];
WebInspector.Color.hsva2rgba(candidateHSVA, candidateRGBA);
var flattenedRGBA = [];
WebInspector.Color.flattenColors(candidateRGBA, bgRGBA, flattenedRGBA);
/**
* Approach the desired contrast ratio by modifying the given component
* from the given starting value.
* @param {number} index
* @param {number} x
* @return {?number}
*/
function approach(index, x)
{
while (0 <= x && x <= 1) {
candidateHSVA[index] = x;
WebInspector.Color.hsva2rgba(candidateHSVA, candidateRGBA);
WebInspector.Color.flattenColors(candidateRGBA, bgRGBA, flattenedRGBA);
var contrast = WebInspector.Color.calculateContrastRatio(flattenedRGBA, bgRGBA);
var dContrast = contrast - requiredContrast;
if (Math.abs(dContrast) < epsilon) {
return x;
} else {
// 21 is the maximum possible value for contrast ratio:
// http://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-contrast.html#contrast-ratiodef
x += delta * (dContrast / 21);
}
}
return null;
}
for (var s = 0; s < 1 + dS; s += dS) {
s = Math.min(1, s);
candidateHSVA[1] = s;
var v = lastV;
v = lastV + currentSlope * dS;
v = approach(2, v);
if (v === null)
break;
currentSlope = (v - lastV) / dS;
pathBuilder.push(pathBuilder.length ? "L" : "M");
pathBuilder.push(s * width);
pathBuilder.push((1 - v) * height);
}
if (s < 1 + dS) {
s -= dS;
delta = -delta;
candidateHSVA[2] = 1;
s = approach(1, s);
if (s !== null)
pathBuilder = pathBuilder.concat(["L", s * width, 0])
}
this._contrastRatioLine.setAttribute("d", pathBuilder.join(" "));
},
_updateUI: function()
{
var h = WebInspector.Color.fromHSVA([this._hsv[0], 1, 1, 1]);
this._colorElement.style.backgroundColor = /** @type {string} */ (h.asString(WebInspector.Color.Format.RGB));
if (Runtime.experiments.isEnabled("colorContrastRatio")) {
// TODO(samli): Determine size of text and switch between AA/AAA ratings.
this._drawContrastRatioLine(4.5);
}
this._swatchInnerElement.style.backgroundColor = /** @type {string} */ (this._color().asString(WebInspector.Color.Format.RGBA));
// Show border if the swatch is white.
this._swatchInnerElement.classList.toggle("swatch-inner-white", this._color().hsla()[2] > 0.9);
this._colorDragElement.style.backgroundColor = /** @type {string} */ (this._color().asString(WebInspector.Color.Format.RGBA));
var noAlpha = WebInspector.Color.fromHSVA(this._hsv.slice(0,3).concat(1));
this._alphaElementBackground.style.backgroundImage = String.sprintf("linear-gradient(to right, rgba(0,0,0,0), %s)", noAlpha.asString(WebInspector.Color.Format.RGB));
},
_formatViewSwitch: function()
{
var cf = WebInspector.Color.Format;
var format = cf.RGB;
if (this._colorFormat === cf.RGB)
format = cf.HSL;
else if (this._colorFormat === cf.HSL && !this._color().hasAlpha())
format = this._originalFormat === cf.ShortHEX ? cf.ShortHEX : cf.HEX;
this._innerSetColor(undefined, "", format, WebInspector.Spectrum._ChangeSource.Other);
},
/**
* @param {!Event} event
*/
_inputChanged: function(event)
{
/**
* @param {!Element} element
* @return {string}
*/
function elementValue(element)
{
return element.value;
}
var inputElement = /** @type {!Element} */(event.currentTarget);
var arrowKeyOrMouseWheelEvent = (event.keyIdentifier === "Up" || event.keyIdentifier === "Down" || event.type === "mousewheel");
var pageKeyPressed = (event.keyIdentifier === "PageUp" || event.keyIdentifier === "PageDown");
if (arrowKeyOrMouseWheelEvent || pageKeyPressed) {
var newValue = WebInspector.createReplacementString(inputElement.value, event);
if (newValue) {
inputElement.value = newValue;
inputElement.selectionStart = 0;
inputElement.selectionEnd = newValue.length;
}
event.consume(true);
}
const cf = WebInspector.Color.Format;
var colorString;
if (this._colorFormat === cf.HEX || this._colorFormat === cf.ShortHEX) {
colorString = this._hexValue.value;
} else {
var format = this._colorFormat === cf.RGB ? "rgba" : "hsla";
var values = this._textValues.map(elementValue).join(",");
colorString = String.sprintf("%s(%s)", format, values);
}
var color = WebInspector.Color.parse(colorString);
if (!color)
return;
var hsv = color.hsva();
if (this._colorFormat === cf.HEX || this._colorFormat === cf.ShortHEX)
this._colorFormat = color.canBeShortHex() ? cf.ShortHEX : cf.HEX;
this._innerSetColor(hsv, colorString, undefined, WebInspector.Spectrum._ChangeSource.Input);
},
wasShown: function()
{
this._hueAlphaWidth = this._hueElement.offsetWidth;
this.slideHelperWidth = this._hueSlider.offsetWidth / 2;
this.dragWidth = this._colorElement.offsetWidth;
this.dragHeight = this._colorElement.offsetHeight;
this._colorDragElementHeight = this._colorDragElement.offsetHeight / 2;
this._innerSetColor(undefined, undefined, undefined, WebInspector.Spectrum._ChangeSource.Model);
this._toggleColorPicker(true);
WebInspector.targetManager.addModelListener(WebInspector.ResourceTreeModel, WebInspector.ResourceTreeModel.EventTypes.ColorPicked, this._colorPicked, this);
},
willHide: function()
{
this._toggleColorPicker(false);
WebInspector.targetManager.removeModelListener(WebInspector.ResourceTreeModel, WebInspector.ResourceTreeModel.EventTypes.ColorPicked, this._colorPicked, this);
},
/**
* @param {boolean=} enabled
* @param {!WebInspector.Event=} event
*/
_toggleColorPicker: function(enabled, event)
{
if (enabled === undefined)
enabled = !this._colorPickerButton.toggled();
this._colorPickerButton.setToggled(enabled);
for (var target of WebInspector.targetManager.targets())
target.pageAgent().setColorPickerEnabled(enabled);
},
/**
* @param {!WebInspector.Event} event
*/
_colorPicked: function(event)
{
var rgbColor = /** @type {!DOMAgent.RGBA} */ (event.data);
var rgba = [rgbColor.r, rgbColor.g, rgbColor.b, (rgbColor.a / 2.55 | 0) / 100];
var color = WebInspector.Color.fromRGBA(rgba);
this._innerSetColor(color.hsva(), "", undefined, WebInspector.Spectrum._ChangeSource.Other);
InspectorFrontendHost.bringToFront();
},
__proto__: WebInspector.VBox.prototype
}
/** @typedef {{ title: string, colors: !Array.<string>, mutable: boolean }} */
WebInspector.Spectrum.Palette;
WebInspector.Spectrum.GeneratedPaletteTitle = "Page colors";
/**
* @constructor
* @param {function(!WebInspector.Spectrum.Palette)} callback
*/
WebInspector.Spectrum.PaletteGenerator = function(callback)
{
this._callback = callback;
var target = WebInspector.targetManager.mainTarget();
if (!target)
return;
var cssModel = WebInspector.CSSStyleModel.fromTarget(target);
/** @type {!Map.<string, number>} */
this._frequencyMap = new Map();
var stylesheetPromises = [];
for (var stylesheet of cssModel.allStyleSheets())
stylesheetPromises.push(new Promise(this._processStylesheet.bind(this, stylesheet)));
Promise.all(stylesheetPromises)
.catchException(null)
.then(this._finish.bind(this));
}
WebInspector.Spectrum.PaletteGenerator.prototype = {
/**
* @param {string} a
* @param {string} b
* @return {number}
*/
_frequencyComparator: function(a, b)
{
return this._frequencyMap.get(b) - this._frequencyMap.get(a);
},
_finish: function()
{
/**
* @param {string} a
* @param {string} b
* @return {number}
*/
function hueComparator(a, b)
{
var hsva = paletteColors.get(a).hsva();
var hsvb = paletteColors.get(b).hsva();
// First trim the shades of gray
if (hsvb[1] < 0.12 && hsva[1] < 0.12)
return hsvb[2]*hsvb[3] - hsva[2]*hsva[3];
if (hsvb[1] < 0.12)
return -1;
if (hsva[1] < 0.12)
return 1;
// Equal hue -> sort by sat
if (hsvb[0] === hsva[0])
return hsvb[1]*hsvb[3] - hsva[1]*hsva[3];
return (hsvb[0] + 0.94) % 1 - (hsva[0] + 0.94) % 1;
}
var colors = this._frequencyMap.keysArray();
colors = colors.sort(this._frequencyComparator.bind(this));
/** @type {!Map.<string, !WebInspector.Color>} */
var paletteColors = new Map();
var colorsPerRow = 24;
while (paletteColors.size < colorsPerRow && colors.length) {
var colorText = colors.shift();
var color = WebInspector.Color.parse(colorText);
if (!color || color.nickname() === "white" || color.nickname() === "black")
continue;
paletteColors.set(colorText, color);
}
this._callback({ title: WebInspector.Spectrum.GeneratedPaletteTitle, colors: paletteColors.keysArray().sort(hueComparator), mutable: false });
},
/**
* @param {!WebInspector.CSSStyleSheetHeader} stylesheet
* @param {function(?)} resolve
* @this {WebInspector.Spectrum.PaletteGenerator}
*/
_processStylesheet: function(stylesheet, resolve)
{
/**
* @param {?string} text
* @this {WebInspector.Spectrum.PaletteGenerator}
*/
function parseContent(text)
{
text = text.toLowerCase();
var regexResult = text.match(/((?:rgb|hsl)a?\([^)]+\)|#[0-9a-f]{6}|#[0-9a-f]{3})/g) || [];
for (var c of regexResult) {
var frequency = this._frequencyMap.get(c) || 0;
this._frequencyMap.set(c, ++frequency);
}
resolve(null);
}
stylesheet.requestContent(parseContent.bind(this));
}
}
WebInspector.Spectrum.MaterialPalette = { title: "Material", mutable: false, matchUserFormat: true, colors: [
"#F44336",
"#E91E63",
"#9C27B0",
"#673AB7",
"#3F51B5",
"#2196F3",
"#03A9F4",
"#00BCD4",
"#009688",
"#4CAF50",
"#8BC34A",
"#CDDC39",
"#FFEB3B",
"#FFC107",
"#FF9800",
"#FF5722",
"#795548",
"#9E9E9E",
"#607D8B"
]};