svgedit/editor/extensions/ext-eyedropper.js

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/* eslint-disable no-var */
/* globals svgEditor, svgedit, $ */
/*
* ext-eyedropper.js
*
* Licensed under the MIT License
*
* Copyright(c) 2010 Jeff Schiller
*
*/
// Dependencies:
// 1) jQuery
// 2) history.js
// 3) svg_editor.js
// 4) svgcanvas.js
svgEditor.addExtension('eyedropper', function (S) {
'use strict';
var // NS = svgedit.NS,
// svgcontent = S.svgcontent,
// svgdoc = S.svgroot.parentNode.ownerDocument,
svgCanvas = svgEditor.canvas,
ChangeElementCommand = svgedit.history.ChangeElementCommand,
addToHistory = function (cmd) { svgCanvas.undoMgr.addCommandToHistory(cmd); },
currentStyle = {
fillPaint: 'red', fillOpacity: 1.0,
strokePaint: 'black', strokeOpacity: 1.0,
strokeWidth: 5, strokeDashArray: null,
opacity: 1.0,
strokeLinecap: 'butt',
strokeLinejoin: 'miter'
};
function getStyle (opts) {
// if we are in eyedropper mode, we don't want to disable the eye-dropper tool
var mode = svgCanvas.getMode();
if (mode === 'eyedropper') { return; }
var elem = null;
var tool = $('#tool_eyedropper');
// enable-eye-dropper if one element is selected
if (!opts.multiselected && opts.elems[0] &&
$.inArray(opts.elems[0].nodeName, ['svg', 'g', 'use']) === -1
) {
elem = opts.elems[0];
tool.removeClass('disabled');
// grab the current style
currentStyle.fillPaint = elem.getAttribute('fill') || 'black';
currentStyle.fillOpacity = elem.getAttribute('fill-opacity') || 1.0;
currentStyle.strokePaint = elem.getAttribute('stroke');
currentStyle.strokeOpacity = elem.getAttribute('stroke-opacity') || 1.0;
currentStyle.strokeWidth = elem.getAttribute('stroke-width');
currentStyle.strokeDashArray = elem.getAttribute('stroke-dasharray');
currentStyle.strokeLinecap = elem.getAttribute('stroke-linecap');
currentStyle.strokeLinejoin = elem.getAttribute('stroke-linejoin');
currentStyle.opacity = elem.getAttribute('opacity') || 1.0;
// disable eye-dropper tool
} else {
tool.addClass('disabled');
}
}
return {
name: 'eyedropper',
svgicons: svgEditor.curConfig.extPath + 'eyedropper-icon.xml',
buttons: [{
id: 'tool_eyedropper',
type: 'mode',
title: 'Eye Dropper Tool',
key: 'I',
events: {
click: function () {
svgCanvas.setMode('eyedropper');
}
}
}],
// if we have selected an element, grab its paint and enable the eye dropper button
selectedChanged: getStyle,
elementChanged: getStyle,
mouseDown: function (opts) {
var mode = svgCanvas.getMode();
if (mode === 'eyedropper') {
var e = opts.event;
var target = e.target;
if ($.inArray(target.nodeName, ['svg', 'g', 'use']) === -1) {
var changes = {};
var change = function (elem, attrname, newvalue) {
changes[attrname] = elem.getAttribute(attrname);
elem.setAttribute(attrname, newvalue);
};
if (currentStyle.fillPaint) { change(target, 'fill', currentStyle.fillPaint); }
if (currentStyle.fillOpacity) { change(target, 'fill-opacity', currentStyle.fillOpacity); }
if (currentStyle.strokePaint) { change(target, 'stroke', currentStyle.strokePaint); }
if (currentStyle.strokeOpacity) { change(target, 'stroke-opacity', currentStyle.strokeOpacity); }
if (currentStyle.strokeWidth) { change(target, 'stroke-width', currentStyle.strokeWidth); }
if (currentStyle.strokeDashArray) { change(target, 'stroke-dasharray', currentStyle.strokeDashArray); }
if (currentStyle.opacity) { change(target, 'opacity', currentStyle.opacity); }
if (currentStyle.strokeLinecap) { change(target, 'stroke-linecap', currentStyle.strokeLinecap); }
if (currentStyle.strokeLinejoin) { change(target, 'stroke-linejoin', currentStyle.strokeLinejoin); }
addToHistory(new ChangeElementCommand(target, changes));
}
}
}
};
});