piskel/js/controller/PaletteController.js

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(function () {
var ns = $.namespace("pskl.controller");
ns.PaletteController = function () {};
/**
* @public
*/
ns.PaletteController.prototype.init = function() {
var transparentColorPalette = $(".palette-color[data-color=TRANSPARENT]");
transparentColorPalette.mouseup($.proxy(this.onPaletteColorClick_, this));
$.subscribe(Events.PRIMARY_COLOR_UPDATED, $.proxy(function(evt, color) {
this.updateColorPicker_(color, $('#color-picker'));
}, this));
$.subscribe(Events.SECONDARY_COLOR_UPDATED, $.proxy(function(evt, color) {
this.updateColorPicker_(color, $('#secondary-color-picker'));
}, this));
// Initialize colorpickers:
var colorPicker = $('#color-picker');
colorPicker.val(Constants.DEFAULT_PEN_COLOR);
colorPicker.change({isPrimary : true}, $.proxy(this.onPickerChange_, this));
var secondaryColorPicker = $('#secondary-color-picker');
secondaryColorPicker.val(Constants.TRANSPARENT_COLOR);
secondaryColorPicker.change({isPrimary : false}, $.proxy(this.onPickerChange_, this));
};
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/**
* @private
*/
ns.PaletteController.prototype.onPickerChange_ = function(evt, isPrimary) {
var inputPicker = $(evt.target);
if(evt.data.isPrimary) {
$.publish(Events.PRIMARY_COLOR_SELECTED, [inputPicker.val()]);
} else {
$.publish(Events.SECONDARY_COLOR_SELECTED, [inputPicker.val()]);
}
};
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/**
* @private
*/
ns.PaletteController.prototype.onPaletteColorClick_ = function (event) {
var selectedColor = $(event.target).data("color");
var isLeftClick = (event.which == 1);
var isRightClick = (event.which == 3);
if (isLeftClick) {
$.publish(Events.PRIMARY_COLOR_SELECTED, [selectedColor]);
} else if (isRightClick) {
$.publish(Events.SECONDARY_COLOR_SELECTED, [selectedColor]);
}
};
/**
* @private
*/
ns.PaletteController.prototype.updateColorPicker_ = function (color, colorPicker) {
if (color == Constants.TRANSPARENT_COLOR) {
// We can set the current palette color to transparent.
// You can then combine this transparent color with an advanced
// tool for customized deletions.
// Eg: bucket + transparent: Delete a colored area
// Stroke + transparent: hollow out the equivalent of a stroke
// The colorpicker can't be set to a transparent state.
// We set its background to white and insert the
// string "TRANSPARENT" to mimic this state:
colorPicker[0].color.fromString("#fff");
colorPicker.val(Constants.TRANSPARENT_COLOR);
} else {
colorPicker[0].color.fromString(color);
}
};
})();