Files
svgedit/src/editor/panels/LayersPanel.js
JFH a90fe20d32 Lint (#95)
* stricter linter

* Update .eslintrc.js

* Update control-points.js
2021-05-01 15:26:36 +02:00

447 lines
14 KiB
JavaScript

/* eslint-disable max-len */
/* eslint-disable no-alert */
import SvgCanvas from "../../svgcanvas/svgcanvas.js";
const SIDEPANEL_MAXWIDTH = 300;
const SIDEPANEL_OPENWIDTH = 150;
const { $id } = SvgCanvas;
/**
*
*/
class LayersPanel {
/**
* @param {PlainObject} editor
*/
constructor(editor) {
this.uiStrings = editor.uiStrings;
this.updateContextPanel = editor.topPanel.updateContextPanel;
this.sidedrag = -1;
this.sidedragging = false;
this.allowmove = false;
this.editor = editor;
}
/**
* @param {Float} delta
* @fires module:svgcanvas.SvgCanvas#event:ext_workareaResized
* @returns {void}
*/
changeSidePanelWidth(delta) {
const rulerX = document.querySelector("#ruler_x");
$id("sidepanels").style.width = (parseFloat(getComputedStyle($id("sidepanels"), null).width.replace("px", "")) + delta) + "px";
$id("layerpanel").style.width = (parseFloat(getComputedStyle($id("layerpanel"), null).width.replace("px", "")) + delta) + "px";
rulerX.style.right =
parseFloat(getComputedStyle(rulerX, null).right.replace("px", "")) +
delta +
"px";
this.editor.workarea.style.right =
parseFloat(
getComputedStyle(this.editor.workarea, null).right.replace("px", "")
) +
delta +
"px";
this.editor.svgCanvas.runExtensions("workareaResized");
}
/**
* @param {Event} evt
* @returns {void}
*/
resizeSidePanel(evt) {
if (!this.allowmove) {
return;
}
if (this.sidedrag === -1) {
return;
}
this.sidedragging = true;
let deltaX = this.sidedrag - evt.pageX;
const sideWidth = parseFloat(getComputedStyle($id("sidepanels"), null).width.replace("px", ""));
if (sideWidth + deltaX > SIDEPANEL_MAXWIDTH) {
deltaX = SIDEPANEL_MAXWIDTH - sideWidth;
// sideWidth = SIDEPANEL_MAXWIDTH;
} else if (sideWidth + deltaX < 2) {
deltaX = 2 - sideWidth;
// sideWidth = 2;
}
if (deltaX === 0) {
return;
}
this.sidedrag -= deltaX;
this.changeSidePanelWidth(deltaX);
}
/**
* If width is non-zero, then fully close it; otherwise fully open it.
* @param {boolean} close Forces the side panel closed
* @returns {void}
*/
toggleSidePanel(close) {
const dpr = window.devicePixelRatio || 1;
const w = parseFloat(getComputedStyle($id("sidepanels"), null).width.replace("px", ""))
const isOpened = (dpr < 1 ? w : w / dpr) > 2;
const zoomAdjustedSidepanelWidth =
(dpr < 1 ? 1 : dpr) * SIDEPANEL_OPENWIDTH;
const deltaX = (isOpened || close ? 0 : zoomAdjustedSidepanelWidth) - w;
this.changeSidePanelWidth(deltaX);
}
/**
* @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");
template.innerHTML = `
<div id="sidepanels">
<div id="layerpanel">
<h3 id="layersLabel">Layers</h3>
<fieldset id="layerbuttons">
<se-button id="layer_new" title="New Layer" size="small" src="./images/new.svg"></se-button>
<se-button id="layer_delete" title="Delete Layer" size="small" src="./images/delete.svg"></se-button>
<se-button id="layer_rename" title="Rename Layer" size="small" src="./images/text.svg"></se-button>
<se-button id="layer_up" title="Move Layer Up" size="small" src="./images/go_up.svg"></se-button>
<se-button id="layer_down" title="Move Layer Down" size="small" src="./images/go_down.svg"></se-button>
<se-button id="layer_moreopts" title="More Options" size="small" src="./images/context_menu.svg">
</se-button>
</fieldset>
<table id="layerlist">
<tr class="layer">
<td class="layervis"></td>
<td class="layername">Layer 1</td>
</tr>
</table>
<span id="selLayerLabel">Move elements to:</span>
<select id="selLayerNames" title="Move selected elements to a different layer" disabled="disabled">
<option selected="selected" value="layer1">Layer 1</option>
</select>
</div>
<div id="sidepanel_handle" title="Drag left/right to resize side panel [X]">L a y e r s
</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);
document.body.append(menuMore);
const menuLayerBox = document.createElement("se-cmenu-layers");
menuLayerBox.setAttribute("id", "se-cmenu-layers-list");
menuLayerBox.value = "layerlist";
menuLayerBox.setAttribute("leftclick", false);
document.body.append(menuLayerBox);
document
.getElementById("layer_new")
.addEventListener("click", this.newLayer.bind(this));
document
.getElementById("layer_delete")
.addEventListener("click", this.deleteLayer.bind(this));
document
.getElementById("layer_up")
.addEventListener("click", () => this.moveLayer.bind(this)(-1));
document
.getElementById("layer_down")
.addEventListener("click", () => this.moveLayer.bind(this)(1));
document
.getElementById("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.bind(this)
);
if (this.editor.configObj.curConfig.showlayers) {
this.toggleSidePanel();
}
$id("sidepanel_handle").addEventListener("mousedown", evt => {
this.sidedrag = evt.pageX;
window.addEventListener("mousemove", this.resizeSidePanel.bind(this));
this.allowmove = false;
// Silly hack for Chrome, which always runs mousemove right after mousedown
setTimeout(() => {
this.allowmove = true;
}, 20);
});
$id("sidepanel_handle").addEventListener("mouseup", _evt => {
if (!this.sidedragging) {
this.toggleSidePanel();
}
this.sidedrag = -1;
this.sidedragging = false;
});
window.addEventListener("mouseup", _evt => {
this.sidedrag = -1;
this.sidedragging = false;
$id("svg_editor").removeEventListener(
"mousemove",
this.resizeSidePanel.bind(this)
);
});
}
/**
* @returns {void}
*/
newLayer() {
let uniqName;
let i = this.editor.svgCanvas.getCurrentDrawing().getNumLayers();
do {
uniqName = this.uiStrings.layers.layer + " " + ++i;
} while (this.editor.svgCanvas.getCurrentDrawing().hasLayer(uniqName));
const newName = prompt(
this.uiStrings.notification.enterUniqueLayerName,
uniqName
);
if (!newName) {
return;
}
if (this.editor.svgCanvas.getCurrentDrawing().hasLayer(newName)) {
alert(this.uiStrings.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.uiStrings.notification.enterUniqueLayerName,
name
);
if (!newName) {
return;
}
if (this.editor.svgCanvas.getCurrentDrawing().hasLayer(newName)) {
alert(this.uiStrings.notification.dupeLayerName);
return;
}
this.editor.svgCanvas.cloneLayer(newName);
this.updateContextPanel();
this.populateLayers();
}
index(el) {
if (!el) return -1;
var 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 oldName = document.querySelector("#layerlist tr.layersel td.layername").textContent;
const newName = prompt(this.uiStrings.notification.enterNewLayerName, "");
if (!newName) {
return;
}
if (
oldName === newName ||
this.editor.svgCanvas.getCurrentDrawing().hasLayer(newName)
) {
alert(this.uiStrings.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 = [],
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);
const selLayerNames = $id("selLayerNames");
// empty() ref: http://youmightnotneedjquery.com/#empty
while(selLayerNames.firstChild)
selLayerNames.removeChild(selLayerNames.firstChild);
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)
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);
// eslint-disable-next-line no-unsanitized/property
selLayerNames.innerHTML += '<option value="' + name + '">' + name + '</option>';
}
// 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', function(evt) {
self.toggleHighlightLayer(
self.editor.svgCanvas,
evt.currentTarget.textContent
);
});
element.addEventListener('mouseout', function(_evt) {
self.toggleHighlightLayer(self.editor.svgCanvas);
});
});
const elements = $id('layerlist').querySelectorAll("td.layervis");
Array.from(elements).forEach(function(element) {
element.addEventListener('click', function(evt) {
const name = evt.currentTarget.parentNode.querySelector("td.layername").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;