'use strict';
import $ from 'jquery';
import _defaults from './options';
/**
* Handles everything related to the UI of the colorpicker popup: show, hide, position,...
* @ignore
*/
class PopupHandler {
/**
* @param {Colorpicker} colorpicker
* @param {Window} root
*/
constructor(colorpicker, root) {
/**
* @type {Window}
*/
this.root = root;
/**
* @type {Colorpicker}
*/
this.colorpicker = colorpicker;
/**
* @type {jQuery}
*/
this.popoverTarget = null;
/**
* @type {jQuery}
*/
this.popoverTip = null;
/**
* If true, the latest click was inside the popover
* @type {boolean}
*/
this.clicking = false;
/**
* @type {boolean}
*/
this.hidding = false;
/**
* @type {boolean}
*/
this.showing = false;
}
/**
* @private
* @returns {jQuery|false}
*/
get input() {
return this.colorpicker.inputHandler.input;
}
/**
* @private
* @returns {boolean}
*/
get hasInput() {
return this.colorpicker.inputHandler.hasInput();
}
/**
* @private
* @returns {jQuery|false}
*/
get addon() {
return this.colorpicker.addonHandler.addon;
}
/**
* @private
* @returns {boolean}
*/
get hasAddon() {
return this.colorpicker.addonHandler.hasAddon();
}
/**
* @private
* @returns {boolean}
*/
get isPopover() {
return !this.colorpicker.options.inline && !!this.popoverTip;
}
/**
* Binds the different colorpicker elements to the focus/mouse/touch events so it reacts in order to show or
* hide the colorpicker popup accordingly. It also adds the proper classes.
*/
bind() {
let cp = this.colorpicker;
if (cp.options.inline) {
cp.picker.addClass('colorpicker-inline colorpicker-visible');
return; // no need to bind show/hide events for inline elements
}
cp.picker.addClass('colorpicker-popup colorpicker-hidden');
// there is no input or addon
if (!this.hasInput && !this.hasAddon) {
return;
}
// create Bootstrap 4 popover
if (cp.options.popover) {
this.createPopover();
}
// bind addon show/hide events
if (this.hasAddon) {
// enable focus on addons
if (!this.addon.attr('tabindex')) {
this.addon.attr('tabindex', 0);
}
this.addon.on({
'mousedown.colorpicker touchstart.colorpicker': $.proxy(this.toggle, this)
});
this.addon.on({
'focus.colorpicker': $.proxy(this.show, this)
});
this.addon.on({
'focusout.colorpicker': $.proxy(this.hide, this)
});
}
// bind input show/hide events
if (this.hasInput && !this.hasAddon) {
this.input.on({
'mousedown.colorpicker touchstart.colorpicker': $.proxy(this.show, this),
'focus.colorpicker': $.proxy(this.show, this)
});
this.input.on({
'focusout.colorpicker': $.proxy(this.hide, this)
});
}
// reposition popup on window resize
$(this.root).on('resize.colorpicker', $.proxy(this.reposition, this));
}
/**
* Unbinds any event bound by this handler
*/
unbind() {
if (this.hasInput) {
this.input.off({
'mousedown.colorpicker touchstart.colorpicker': $.proxy(this.show, this),
'focus.colorpicker': $.proxy(this.show, this)
});
this.input.off({
'focusout.colorpicker': $.proxy(this.hide, this)
});
}
if (this.hasAddon) {
this.addon.off({
'mousedown.colorpicker touchstart.colorpicker': $.proxy(this.toggle, this)
});
this.addon.off({
'focus.colorpicker': $.proxy(this.show, this)
});
this.addon.off({
'focusout.colorpicker': $.proxy(this.hide, this)
});
}
if (this.popoverTarget) {
this.popoverTarget.popover('dispose');
}
$(this.root).off('resize.colorpicker', $.proxy(this.reposition, this));
$(this.root.document).off('mousedown.colorpicker touchstart.colorpicker', $.proxy(this.hide, this));
$(this.root.document).off('mousedown.colorpicker touchstart.colorpicker', $.proxy(this.onClickingInside, this));
}
isClickingInside(e) {
if (!e) {
return false;
}
return (
this.isOrIsInside(this.popoverTip, e.currentTarget) ||
this.isOrIsInside(this.popoverTip, e.target) ||
this.isOrIsInside(this.colorpicker.picker, e.currentTarget) ||
this.isOrIsInside(this.colorpicker.picker, e.target)
);
}
isOrIsInside(container, element) {
if (!container || !element) {
return false;
}
element = $(element);
return (
element.is(container) ||
container.find(element).length > 0
);
}
onClickingInside(e) {
this.clicking = this.isClickingInside(e);
}
createPopover() {
let cp = this.colorpicker;
this.popoverTarget = this.hasAddon ? this.addon : this.input;
cp.picker.addClass('colorpicker-bs-popover-content');
this.popoverTarget.popover(
$.extend(
true,
{},
_defaults.popover,
cp.options.popover,
{trigger: 'manual', content: cp.picker, html: true}
)
);
this.popoverTip = $(this.popoverTarget.popover('getTipElement').data('bs.popover').tip);
this.popoverTip.addClass('colorpicker-bs-popover');
this.popoverTarget.on('shown.bs.popover', $.proxy(this.fireShow, this));
this.popoverTarget.on('hidden.bs.popover', $.proxy(this.fireHide, this));
}
/**
* If the widget is not inside a container or inline, rearranges its position relative to its element offset.
*
* @param {Event} [e]
* @private
*/
reposition(e) {
if (this.popoverTarget && this.isVisible()) {
this.popoverTarget.popover('update');
}
}
/**
* Toggles the colorpicker between visible or hidden
*
* @fires Colorpicker#colorpickerShow
* @fires Colorpicker#colorpickerHide
* @param {Event} [e]
*/
toggle(e) {
if (this.isVisible()) {
this.hide(e);
} else {
this.show(e);
}
}
/**
* Shows the colorpicker widget if hidden.
*
* @fires Colorpicker#colorpickerShow
* @param {Event} [e]
*/
show(e) {
if (this.isVisible() || this.showing || this.hidding) {
return;
}
this.showing = true;
this.hidding = false;
this.clicking = false;
let cp = this.colorpicker;
cp.lastEvent.alias = 'show';
cp.lastEvent.e = e;
// Prevent showing browser native HTML5 colorpicker
if (
(e && (!this.hasInput || this.input.attr('type') === 'color')) &&
(e && e.preventDefault)
) {
e.stopPropagation();
e.preventDefault();
}
// If it's a popover, add event to the document to hide the picker when clicking outside of it
if (this.isPopover) {
$(this.root).on('resize.colorpicker', $.proxy(this.reposition, this));
}
// add visible class before popover is shown
cp.picker.addClass('colorpicker-visible').removeClass('colorpicker-hidden');
if (this.popoverTarget) {
this.popoverTarget.popover('show');
} else {
this.fireShow();
}
}
fireShow() {
this.hidding = false;
this.showing = false;
if (this.isPopover) {
// Add event to hide on outside click
$(this.root.document).on('mousedown.colorpicker touchstart.colorpicker', $.proxy(this.hide, this));
$(this.root.document).on('mousedown.colorpicker touchstart.colorpicker', $.proxy(this.onClickingInside, this));
}
/**
* (Colorpicker) When show() is called and the widget can be shown.
*
* @event Colorpicker#colorpickerShow
*/
this.colorpicker.trigger('colorpickerShow');
}
/**
* Hides the colorpicker widget.
* Hide is prevented when it is triggered by an event whose target element has been clicked/touched.
*
* @fires Colorpicker#colorpickerHide
* @param {Event} [e]
*/
hide(e) {
if (this.isHidden() || this.showing || this.hidding) {
return;
}
let cp = this.colorpicker, clicking = (this.clicking || this.isClickingInside(e));
this.hidding = true;
this.showing = false;
this.clicking = false;
cp.lastEvent.alias = 'hide';
cp.lastEvent.e = e;
// TODO: fix having to click twice outside when losing focus and last 2 clicks where inside the colorpicker
// Prevent hide if triggered by an event and an element inside the colorpicker has been clicked/touched
if (clicking) {
this.hidding = false;
return;
}
if (this.popoverTarget) {
this.popoverTarget.popover('hide');
} else {
this.fireHide();
}
}
fireHide() {
this.hidding = false;
this.showing = false;
let cp = this.colorpicker;
// add hidden class after popover is hidden
cp.picker.addClass('colorpicker-hidden').removeClass('colorpicker-visible');
// Unbind window and document events, since there is no need to keep them while the popup is hidden
$(this.root).off('resize.colorpicker', $.proxy(this.reposition, this));
$(this.root.document).off('mousedown.colorpicker touchstart.colorpicker', $.proxy(this.hide, this));
$(this.root.document).off('mousedown.colorpicker touchstart.colorpicker', $.proxy(this.onClickingInside, this));
/**
* (Colorpicker) When hide() is called and the widget can be hidden.
*
* @event Colorpicker#colorpickerHide
*/
cp.trigger('colorpickerHide');
}
focus() {
if (this.hasAddon) {
return this.addon.focus();
}
if (this.hasInput) {
return this.input.focus();
}
return false;
}
/**
* Returns true if the colorpicker element has the colorpicker-visible class and not the colorpicker-hidden one.
* False otherwise.
*
* @returns {boolean}
*/
isVisible() {
return this.colorpicker.picker.hasClass('colorpicker-visible') &&
!this.colorpicker.picker.hasClass('colorpicker-hidden');
}
/**
* Returns true if the colorpicker element has the colorpicker-hidden class and not the colorpicker-visible one.
* False otherwise.
*
* @returns {boolean}
*/
isHidden() {
return this.colorpicker.picker.hasClass('colorpicker-hidden') &&
!this.colorpicker.picker.hasClass('colorpicker-visible');
}
}
export default PopupHandler;