svgedit
Version:
Powerful SVG-Editor for your browser
346 lines (325 loc) • 11.7 kB
JavaScript
/* eslint-disable no-alert */
import SvgCanvas from "../../svgcanvas/svgcanvas.js";
const { $id } = SvgCanvas;
/**
*
*/
class LayersPanel {
/**
* @param {PlainObject} editor
*/
constructor(editor) {
this.updateContextPanel = editor.topPanel.updateContextPanel.bind(editor.topPanel);
this.editor = editor;
}
/**
* @param {PlainObject} e event
* @returns {void}
*/
lmenuFunc(e) {
const action = e?.detail?.trigger;
switch (action) {
case "dupe":
this.cloneLayer();
break;
case "delete":
this.deleteLayer();
break;
case "merge_down":
this.mergeLayer();
break;
case "merge_all":
this.editor.svgCanvas.mergeAllLayers();
this.updateContextPanel();
this.populateLayers();
break;
}
}
/**
* @returns {void}
*/
init() {
const template = document.createElement("template");
const { i18next } = this.editor;
// eslint-disable-next-line no-unsanitized/property
template.innerHTML = `
<div id="sidepanels">
<se-text id="sidepanel_handle" title="ui.panel_action" text="ui.panel"></se-text>
<div id="sidepanel_content">
<div id="layerpanel">
<se-text id="layersLabel" text="layers.layers"></se-text>
<fieldset id="layerbuttons">
<se-button id="layer_new" title="layers.new" size="small" src="new.svg"></se-button>
<se-button id="layer_delete" title="layers.del" size="small" src="delete.svg"></se-button>
<se-button id="layer_rename" title="layers.rename" size="small" src="text.svg"></se-button>
<se-button id="layer_up" title="layers.move_up" size="small" src="go_up.svg"></se-button>
<se-button id="layer_down" title="layers.move_down" size="small" src="go_down.svg"></se-button>
<se-button id="layer_moreopts" title="common.more_opts" size="small" src="context_menu.svg">
</se-button>
</fieldset>
<table id="layerlist">
<tr class="layer">
<td class="layervis"></td>
<td class="layername">Layer 1</td>
</tr>
</table>
<se-select id="selLayerNames" title="layers.move_selected" label="layers.move_elems_to" options="Layer 1"
values="layer1" value="layer1" disabled="disabled">
</se-select>
</div>
</div>
</div>
`;
this.editor.$svgEditor.append(template.content.cloneNode(true));
// layer menu added to DOM
const menuMore = document.createElement("se-cmenu-layers");
menuMore.setAttribute("id", "se-cmenu-layers-more");
menuMore.value = "layer_moreopts";
menuMore.setAttribute("leftclick", true);
this.editor.$container.append(menuMore);
menuMore.init(i18next);
const menuLayerBox = document.createElement("se-cmenu-layers");
menuLayerBox.setAttribute("id", "se-cmenu-layers-list");
menuLayerBox.value = "layerlist";
menuLayerBox.setAttribute("leftclick", false);
this.editor.$container.append(menuLayerBox);
menuLayerBox.init(i18next);
$id("layer_new").addEventListener("click", this.newLayer.bind(this));
$id("layer_delete").addEventListener("click", this.deleteLayer.bind(this));
$id("layer_up").addEventListener("click", () => this.moveLayer.bind(this)(-1));
$id("layer_down").addEventListener("click", () => this.moveLayer.bind(this)(1));
$id("layer_rename").addEventListener("click", this.layerRename.bind(this));
$id("se-cmenu-layers-more").addEventListener("change", this.lmenuFunc.bind(this));
$id("se-cmenu-layers-list").addEventListener("change", (e) => { this.lmenuFunc(e); });
$id("sidepanel_handle").addEventListener("click", () => this.toggleSidePanel());
this.toggleSidePanel(this.editor.configObj.curConfig.showlayers);
}
toggleSidePanel(displayFlag) {
if (displayFlag === undefined) {
this.editor.$svgEditor.classList.toggle('open');
} else if (displayFlag) {
this.editor.$svgEditor.classList.add('open');
} else {
this.editor.$svgEditor.classList.remove('open');
}
}
/**
* @returns {void}
*/
newLayer() {
let uniqName;
let i = this.editor.svgCanvas.getCurrentDrawing().getNumLayers();
do {
uniqName = this.editor.i18next.t("layers.layer") + " " + ++i;
} while (this.editor.svgCanvas.getCurrentDrawing().hasLayer(uniqName));
const newName = prompt(
this.editor.i18next.t('notification.enterUniqueLayerName'),
uniqName
);
if (!newName) {
return;
}
if (this.editor.svgCanvas.getCurrentDrawing().hasLayer(newName)) {
alert(this.editor.i18next.t('notification.dupeLayerName'));
return;
}
this.editor.svgCanvas.createLayer(newName);
this.updateContextPanel();
this.populateLayers();
}
/**
*
* @returns {void}
*/
deleteLayer() {
if (this.editor.svgCanvas.deleteCurrentLayer()) {
this.updateContextPanel();
this.populateLayers();
// This matches what this.editor.svgCanvas does
// TODO: make this behavior less brittle (svg-editor should get which
// layer is selected from the canvas and then select that one in the UI)
const elements = document.querySelectorAll('#layerlist tr.layer');
Array.prototype.forEach.call(elements, function(el){
el.classList.remove('layersel');
});
document.querySelector('#layerlist tr.layer').classList.add('layersel');
}
}
/**
*
* @returns {void}
*/
cloneLayer() {
const name =
this.editor.svgCanvas.getCurrentDrawing().getCurrentLayerName() + " copy";
const newName = prompt(
this.editor.i18next.t('notification.enterUniqueLayerName'),
name
);
if (!newName) {
return;
}
if (this.editor.svgCanvas.getCurrentDrawing().hasLayer(newName)) {
alert(this.editor.i18next.t('notification.dupeLayerName'));
return;
}
this.editor.svgCanvas.cloneLayer(newName);
this.updateContextPanel();
this.populateLayers();
}
index(el) {
if (!el) return -1;
let i = 0;
do {
i++;
} while (el == el.previousElementSibling);
return i;
}
/**
*
* @returns {void}
*/
mergeLayer() {
if (
(this.index(document.querySelector("#layerlist tr.layersel"))-1) ===
this.editor.svgCanvas.getCurrentDrawing().getNumLayers() - 1
) {
return;
}
this.editor.svgCanvas.mergeLayer();
this.updateContextPanel();
this.populateLayers();
}
/**
* @param {Integer} pos
* @returns {void}
*/
moveLayer(pos) {
const total = this.editor.svgCanvas.getCurrentDrawing().getNumLayers();
let curIndex = (this.index(document.querySelector("#layerlist tr.layersel"))-1);
if (curIndex > 0 || curIndex < total - 1) {
curIndex += pos;
this.editor.svgCanvas.setCurrentLayerPosition(total - curIndex - 1);
this.populateLayers();
}
}
/**
* @returns {void}
*/
layerRename() {
const ele = document.querySelector("#layerlist tr.layersel td.layername");
const oldName = (ele) ? ele.textContent : '';
const newName = prompt(this.editor.i18next.t('notification.enterNewLayerName'), "");
if (!newName) {
return;
}
if (
oldName === newName ||
this.editor.svgCanvas.getCurrentDrawing().hasLayer(newName)
) {
alert(this.editor.i18next.t('notification.layerHasThatName'));
return;
}
this.editor.svgCanvas.renameCurrentLayer(newName);
this.populateLayers();
}
/**
* This function highlights the layer passed in (by fading out the other layers).
* If no layer is passed in, this function restores the other layers.
* @param {string} [layerNameToHighlight]
* @returns {void}
*/
toggleHighlightLayer(layerNameToHighlight) {
let i;
const curNames = [];
const numLayers = this.editor.svgCanvas.getCurrentDrawing().getNumLayers();
for (i = 0; i < numLayers; i++) {
curNames[i] = this.editor.svgCanvas.getCurrentDrawing().getLayerName(i);
}
if (layerNameToHighlight) {
curNames.forEach((curName) => {
if (curName !== layerNameToHighlight) {
this.editor.svgCanvas
.getCurrentDrawing()
.setLayerOpacity(curName, 0.5);
}
});
} else {
curNames.forEach((curName) => {
this.editor.svgCanvas.getCurrentDrawing().setLayerOpacity(curName, 1.0);
});
}
}
/**
* @returns {void}
*/
populateLayers() {
this.editor.svgCanvas.clearSelection();
const self = this;
const layerlist = $id("layerlist").querySelector('tbody');
while(layerlist.firstChild)
layerlist.removeChild(layerlist.firstChild);
$id("selLayerNames").setAttribute("options", "");
const drawing = this.editor.svgCanvas.getCurrentDrawing();
const currentLayerName = drawing.getCurrentLayerName();
let layer = this.editor.svgCanvas.getCurrentDrawing().getNumLayers();
// we get the layers in the reverse z-order (the layer rendered on top is listed first)
let values = "";
let text = "";
while (layer--) {
const name = drawing.getLayerName(layer);
const layerTr = document.createElement("tr");
layerTr.className = (name === currentLayerName) ? 'layer layersel' : 'layer';
const layerVis = document.createElement("td");
layerVis.className = (!drawing.getLayerVisibility(name)) ? "layerinvis layervis" : 'layervis';
const layerName = document.createElement("td");
layerName.className = 'layername';
layerName.textContent = name;
layerTr.appendChild(layerVis);
layerTr.appendChild(layerName);
layerlist.appendChild(layerTr);
values = (values) ? values + "::" + name : name;
text = (text) ? text + "," + name : name;
}
$id("selLayerNames").setAttribute("options", text);
$id("selLayerNames").setAttribute("values", values);
// handle selection of layer
const nelements = $id('layerlist').querySelectorAll("td.layername");
Array.from(nelements).forEach(function(element) {
element.addEventListener('mouseup', function(evt) {
const trElements = $id('layerlist').querySelectorAll("tr.layer");
Array.from(trElements).forEach(function(element) {
element.classList.remove("layersel");
});
evt.currentTarget.parentNode.classList.add("layersel");
self.editor.svgCanvas.setCurrentLayer(evt.currentTarget.textContent);
evt.preventDefault();
});
element.addEventListener('mouseup', (evt) => {
self.toggleHighlightLayer(evt.currentTarget.textContent);
});
element.addEventListener('mouseout', (_evt) => {
self.toggleHighlightLayer();
});
});
const elements = $id('layerlist').querySelectorAll("td.layervis");
Array.from(elements).forEach(function(element) {
element.addEventListener('click', function(evt) {
const ele = evt.currentTarget.parentNode.querySelector("td.layername");
const name = (ele)? ele.textContent : '';
const vis = evt.currentTarget.classList.contains("layerinvis");
self.editor.svgCanvas.setLayerVisibility(name, vis);
evt.currentTarget.classList.toggle("layerinvis");
});
});
// if there were too few rows, let's add a few to make it not so lonely
let num = 5 - $id('layerlist').querySelectorAll("tr.layer").length;
while (num-- > 0) {
// TODO: there must a better way to do this
const tlayer = document.createElement("tr");
tlayer.innerHTML = '<td style="color:white">_</td><td/>';
layerlist.append(tlayer);
}
}
}
export default LayersPanel;