svgedit/editor/extensions/ext-eyedropper.js

116 lines
4.3 KiB
JavaScript

/**
* @file ext-eyedropper.js
*
* @license MIT
*
* @copyright 2010 Jeff Schiller
*
*/
export default {
name: 'eyedropper',
async init (S) {
const strings = await S.importLocale();
const svgEditor = this;
const {$, ChangeElementCommand} = S, // , svgcontent,
// svgdoc = S.svgroot.parentNode.ownerDocument,
svgCanvas = svgEditor.canvas,
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'
};
/**
*
* @param {module:svgcanvas.SvgCanvas#event:ext_selectedChanged|module:svgcanvas.SvgCanvas#event:ext_elementChanged} opts
* @returns {void}
*/
function getStyle (opts) {
// if we are in eyedropper mode, we don't want to disable the eye-dropper tool
const mode = svgCanvas.getMode();
if (mode === 'eyedropper') { return; }
const tool = $('#tool_eyedropper');
// enable-eye-dropper if one element is selected
let elem = null;
if (!opts.multiselected && opts.elems[0] &&
!['svg', 'g', 'use'].includes(opts.elems[0].nodeName)
) {
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');
}
}
const buttons = [
{
id: 'tool_eyedropper',
icon: svgEditor.curConfig.extIconsPath + 'eyedropper.png',
type: 'mode',
events: {
click () {
svgCanvas.setMode('eyedropper');
}
}
}
];
return {
name: strings.name,
svgicons: svgEditor.curConfig.extIconsPath + 'eyedropper-icon.xml',
buttons: strings.buttons.map((button, i) => {
return Object.assign(buttons[i], button);
}),
// if we have selected an element, grab its paint and enable the eye dropper button
selectedChanged: getStyle,
elementChanged: getStyle,
mouseDown (opts) {
const mode = svgCanvas.getMode();
if (mode === 'eyedropper') {
const e = opts.event;
const {target} = e;
if (!['svg', 'g', 'use'].includes(target.nodeName)) {
const changes = {};
const 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));
}
}
}
};
}
};