/
palette.js
1368 lines (1237 loc) · 48.5 KB
/
palette.js
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// Copyright (c) 2014-21 Walter Bender
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the The GNU Affero General Public
// License as published by the Free Software Foundation; either
// version 3 of the License, or (at your option) any later version.
//
// You should have received a copy of the GNU Affero General Public
// License along with this library; if not, write to the Free Software
// Foundation, 51 Franklin Street, Suite 500 Boston, MA 02110-1335 USA
/*
global
_, docById, LEADING, DEFAULTPALETTE, MULTIPALETTES, platformColor,
PALETTEICONS, MULTIPALETTEICONS, SKIPPALETTES, toTitleCase,
i18nSolfege, NUMBERBLOCKDEFAULT, TEXTWIDTH, STRINGLEN,
DEFAULTBLOCKSCALE, SVG, DISABLEDFILLCOLOR, DISABLEDSTROKECOLOR,
PALETTEFILLCOLORS, PALETTESTROKECOLORS, last, getTextWidth,
STANDARDBLOCKHEIGHT, CLOSEICON, BUILTINPALETTES,
safeSVG, blockIsMacro, getMacroExpansion
*/
/* exported Palettes, initPalettes */
// All things related to palettes
const PALETTE_SCALE_FACTOR = 0.5;
const PALETTE_WIDTH_FACTOR = 3;
const paletteBlockButtonPush = (blocks, name, arg) => {
const blk = blocks.makeBlock(name, arg);
return blk;
};
// There are several components to the palette system:
//
// loadPaletteButtonHandler is the event handler for palette buttons.
//
// (2) A menu (in the Palettes.dict dictionary) is the palette
// itself. It consists of a title bar (with an icon, label, and close
// button), and individual containers for each protoblock on the
// menu. There is a background behind each protoblock that is part of
// the palette container.
//
// loadPaletteMenuItemHandler is the event handler for the palette menu.
const makePaletteIcons = (data, width, height) => {
const img = new Image();
img.src = "data:image/svg+xml;base64," + window.btoa(base64Encode(data));
if (width) img.width = width;
if (height) img.height = height;
return img;
};
class Palettes {
constructor(activity) {
this.activity = activity;
// this.blocks = null;
this.cellSize = Math.floor(this.activity.cellSize * PALETTE_SCALE_FACTOR + 0.5);
this.paletteWidth = 55 * PALETTE_WIDTH_FACTOR;
this.scrollDiff = 0;
this.originalSize = 55; // this is the original svg size
this.firstTime = true;
this.background = null;
this.mouseOver = false;
this.activePalette = null;
this.paletteObject = null;
this.paletteVisible = false;
this.pluginsDeleteStatus = false;
this.visible = true;
this.scale = 1.0;
this.mobile = false;
// Top of the palette
this.top = 55 + 20 + LEADING;
this.current = DEFAULTPALETTE;
this.x = []; // We track x and y for each of the multipalettes
this.y = [];
this.pluginMacros = {}; // some macros are defined in plugins
// The collection of palettes.
this.dict = {};
this.selectorButtonsOff = []; // Select between palettes
this.selectorButtonsOn = []; // Select between palettes in their on state
this.buttons = {}; // The toolbar button for each palette.
this.labels = {}; // The label for each button.
this.pluginPalettes = []; // List of palettes not in multipalette list
}
init() {
this.halfCellSize = Math.floor(this.cellSize / 2);
}
init_selectors() {
for (let i = 0; i < MULTIPALETTES.length; i++) {
this._makeSelectorButton(i);
}
}
deltaY(dy) {
const curr = parseInt(document.getElementById("palette").style.top);
document.getElementById("palette").style.top = curr + dy + "px";
}
_makeSelectorButton(i) {
// eslint-disable-next-line no-console
console.debug("makeSelectorButton " + i);
if (!document.getElementById("palette")) {
const element = document.createElement("div");
element.id = "palette";
element.setAttribute("class", "disable_highlighting");
element.setAttribute(
"style",
"position: absolute; z-index: 1000; display: none ; left :0px; top:" + this.top + "px"
);
element.innerHTML =
'<div style="float: left"><table width ="' +
1.5 * this.cellSize +
'px"bgcolor="white"><thead><tr></tr></thead></table><table width ="' +
4.5 * this.cellSize +
'px"bgcolor="white"><thead><tr><td style= "width:28px"></tr></thead><tbody></tbody></table></div>';
element.childNodes[0].style.border = `1px solid ${platformColor.selectorSelected}`;
document.body.appendChild(element);
}
const tr = docById("palette").children[0].children[0].children[0].children[0];
const td = tr.insertCell();
td.width = 1.5 * this.cellSize;
td.height = 1.5 * this.cellSize;
td.style.position = "relative";
td.appendChild(
makePaletteIcons(
PALETTEICONS[MULTIPALETTEICONS[i]]
.replace("background_fill_color", platformColor.selectorBackground)
.replace(/stroke_color/g, platformColor.ruleColor)
.replace(/fill_color/g, platformColor.background),
1.5 * this.cellSize,
1.5 * this.cellSize
)
);
const cover = document.createElement("div");
cover.style.position = "absolute";
cover.style.zIndex = "10";
cover.style.top = "0";
cover.style.width = "100%";
cover.style.height = "1px";
cover.style.background = platformColor.selectorBackground;
td.appendChild(cover);
td.onmouseover = () => {
this.showSelection(i, tr);
this.makePalettes(i);
};
}
showSelection(i, tr) {
//selector menu design.
for (let j = 0; j < MULTIPALETTES.length; j++) {
let img;
if (j === i) {
img = makePaletteIcons(
PALETTEICONS[MULTIPALETTEICONS[j]]
.replace("background_fill_color", platformColor.selectorSelected)
.replace(/stroke_color/g, platformColor.ruleColor)
.replace(/fill_color/g, platformColor.background),
this.cellSize,
this.cellSize
);
tr.children[j].children[1].style.background = platformColor.selectorSelected;
} else {
img = makePaletteIcons(
PALETTEICONS[MULTIPALETTEICONS[j]]
.replace("background_fill_color", platformColor.selectorBackground)
.replace(/stroke_color/g, platformColor.ruleColor)
.replace(/fill_color/g, platformColor.background),
this.cellSize,
this.cellSize
);
tr.children[j].children[1].style.background = platformColor.selectorBackground;
}
tr.children[j].children[0].src = img.src;
}
}
setSize(size) {
this.cellSize = Math.floor(size * PALETTE_SCALE_FACTOR + 0.5);
return this;
}
setMobile(mobile) {
this.mobile = mobile;
if (mobile) {
this._hideMenus();
}
return this;
}
setSearch(show, hide) {
this.activity.showSearchWidget = show;
this.activity.hideSearchWidget = hide;
return this;
}
getSearchPos() {
return [this.cellSize, this.top + this.cellSize * 1.75];
}
getPluginMacroExpansion(blkname, x, y) {
// eslint-disable-next-line no-console
console.debug(this.pluginMacros[blkname]);
const obj = this.pluginMacros[blkname];
if (obj != null) {
obj[0][2] = x;
obj[0][3] = y;
}
return obj;
}
countProtoBlocks(name) {
// How many protoblocks are in palette name?
let n = 0;
for (const b in this.activity.blocks.protoBlockDict) {
if (
this.activity.blocks.protoBlockDict[b].palette !== null &&
this.activity.blocks.protoBlockDict[b].palette.name === name
) {
n += 1;
}
}
return n;
}
getProtoNameAndPalette(name) {
for (const b in this.activity.blocks.protoBlockDict) {
// Don't return deprecated blocks.
if (
name === this.activity.blocks.protoBlockDict[b].name &&
!this.activity.blocks.protoBlockDict[b].hidden
) {
return [
b,
this.activity.blocks.protoBlockDict[b].palette.name,
this.activity.blocks.protoBlockDict[b].name
];
} else if (name === b && !this.activity.blocks.protoBlockDict[b].hidden) {
return [
b,
this.activity.blocks.protoBlockDict[b].palette.name,
this.activity.blocks.protoBlockDict[b].name
];
}
}
return [null, null, null];
}
makePalettes(i) {
const palette = docById("palette");
let listBody = palette.children[0].children[1].children[1];
listBody.parentNode.removeChild(listBody);
listBody = palette.children[0].children[1].appendChild(document.createElement("tbody"));
// Make an icon/button for each palette
this.makeSearchButton(
"search",
makePaletteIcons(PALETTEICONS["search"], this.cellSize, this.cellSize),
listBody
);
for (const name of MULTIPALETTES[i]) {
if (this.activity.beginnerMode && SKIPPALETTES.indexOf(name) !== -1) {
continue;
}
if (name === "myblocks") {
if (this.countProtoBlocks("myblocks") === 0) continue;
}
this.makeButton(
name,
makePaletteIcons(PALETTEICONS[name], this.cellSize, this.cellSize),
listBody
);
}
}
makeSearchButton(name, icon, listBody) {
const row = listBody.insertRow(-1);
const img = row.insertCell(-1);
const label = row.insertCell(-1);
img.appendChild(icon);
img.style.padding = "4px";
img.style.boxSizing = "content-box";
img.style.width = `${this.cellSize}px`;
img.style.height = `${this.cellSize}px`;
label.textContent = toTitleCase(_(name));
label.style.color = platformColor.paletteText;
row.style.borderBottom = "1px solid #0CAFFF";
label.style.fontSize = localStorage.kanaPreference === "kana" ? "12px" : "16px";
label.style.padding = "4px";
row.style.display = "flex";
row.style.flexDirection = "row";
row.style.alignItems = "center";
row.style.width = "126px";
this._loadPaletteButtonHandler(name, row);
}
makeButton(name, icon, listBody) {
const row = listBody.insertRow(-1);
const img = row.insertCell(-1);
const label = row.insertCell(-1);
img.appendChild(icon);
img.style.padding = "4px";
img.style.boxSizing = "content-box";
img.style.width = `${this.cellSize}px`;
img.style.height = `${this.cellSize}px`;
label.textContent = toTitleCase(_(name));
label.style.color = platformColor.paletteText;
label.style.fontSize = localStorage.kanaPreference === "kana" ? "12px" : "16px";
label.style.padding = "4px";
row.style.display = "flex";
row.style.flexDirection = "row";
row.style.alignItems = "center";
row.style.width = "126px";
this._loadPaletteButtonHandler(name, row);
}
showPalette(name) {
if (this.mobile) {
return;
}
this.activity.hideSearchWidget(true);
this.dict[name].showMenu(true);
this.activePalette = name; // used to delete plugins
}
_showMenus() {}
_hideMenus() {
// Hide the menu buttons and the palettes themselves.
this.activity.hideSearchWidget(true);
if (docById("PaletteBody"))
docById("PaletteBody").parentNode.removeChild(docById("PaletteBody"));
}
getInfo() {
for (const key in this.dict) {
// eslint-disable-next-line no-console
console.debug(this.dict[key].getInfo());
}
}
updatePalettes(showPalette) {
if (showPalette != null) {
// Show the action palette after adding/deleting new
// nameddo blocks.
if (showPalette in this.dict) {
let wasOpen = false;
if (docById("PaletteBody")) {
wasOpen = true;
}
this.dict[showPalette].hideMenu();
if (wasOpen) {
this.dict[showPalette].show();
}
}
}
if (this.mobile) {
this.hide();
}
}
hide() {
docById("palette").style.visibility = "hidden";
}
show() {
docById("palette").style.visibility = "visible";
}
setBlocks(blocks) {
this.blocks = blocks;
return this;
}
add(name) {
// eslint-disable-next-line no-use-before-define
this.dict[name] = new Palette(this, name);
return this;
}
// Palette Button event handlers
_loadPaletteButtonHandler(name, row) {
// eslint-disable-next-line no-unused-vars
row.onmouseover = (event) => {
if (name == "search") {
document.body.style.cursor = "text";
} else {
document.body.style.cursor = "pointer";
this.showPalette(name);
}
};
// eslint-disable-next-line no-unused-vars
row.onclick = (event) => {
if (name == "search") {
this._hideMenus();
this.activity.showSearchWidget();
} else {
this.showPalette(name);
}
};
// eslint-disable-next-line no-unused-vars
row.onmouseup = (event) => {
document.body.style.cursor = "default";
};
// eslint-disable-next-line no-unused-vars
row.onmouseleave = (event) => {
document.body.style.cursor = "default";
};
}
removeActionPrototype(actionName) {
let blockRemoved = false;
for (let blk = 0; blk < this.dict["action"].protoList.length; blk++) {
const actionBlock = this.dict["action"].protoList[blk];
if (
["nameddo", "namedcalc", "nameddoArg", "namedcalcArg"].indexOf(actionBlock.name) !==
-1 &&
actionBlock.defaults[0] === actionName
) {
// Remove the palette protoList entry for this block.
this.dict["action"].remove(actionBlock, actionName);
// And remove it from the protoBlock dictionary.
if (this.activity.blocks.protoBlockDict["myDo_" + actionName]) {
delete this.activity.blocks.protoBlockDict["myDo_" + actionName];
} else if (this.activity.blocks.protoBlockDict["myCalc_" + actionName]) {
delete this.activity.blocks.protoBlockDict["myCalc_" + actionName];
} else if (this.activity.blocks.protoBlockDict["myDoArg_" + actionName]) {
delete this.activity.blocks.protoBlockDict["myDoArg_" + actionName];
} else if (this.activity.blocks.protoBlockDict["myCalcArg_" + actionName]) {
delete this.activity.blocks.protoBlockDict["myCalcArg_" + actionName];
}
blockRemoved = true;
break;
}
}
// Force an update if a block was removed.
if (blockRemoved) {
this.updatePalettes("action");
}
}
}
// Kind of a model, but it only keeps a list of SVGs
class PaletteModel {
constructor(palette, palettes, name) {
this.palette = palette;
this.palettes = palettes;
this.activity = palettes.activity;
this.name = name;
this.blocks = [];
}
update() {
this.blocks = [];
for (const blk in this.palette.protoList) {
const block = this.palette.protoList[blk];
// Don't show hidden blocks on the menus
// But we still make them.
// if (block.hidden) {
// continue;
// }
// Create a proto block for each palette entry.
this.blocks.push(this.makeBlockInfo(blk, block, block.name, block.name));
}
}
makeBlockInfo(blk, block, blkname, modname) {
let arg;
switch (blkname) {
// Use the name of the action in the label
case "storein":
modname = "store in " + block.defaults[0];
arg = block.defaults[0];
break;
case "storein2":
modname = "store in2 " + block.staticLabels[0];
arg = block.staticLabels[0];
break;
case "box":
modname = block.defaults[0];
arg = block.defaults[0];
break;
case "namedbox":
if (block.defaults[0] === undefined) {
modname = "namedbox";
arg = _("box");
} else {
modname = block.defaults[0];
arg = block.defaults[0];
}
break;
case "namedarg":
if (block.defaults[0] === undefined) {
modname = "namedarg";
arg = "1";
} else {
modname = block.defaults[0];
arg = block.defaults[0];
}
break;
case "nameddo":
if (block.defaults[0] === undefined) {
modname = "nameddo";
arg = _("action");
} else {
modname = block.defaults[0];
arg = block.defaults[0];
}
break;
case "nameddoArg":
if (block.defaults[0] === undefined) {
modname = "nameddoArg";
arg = _("action");
} else {
modname = block.defaults[0];
arg = block.defaults[0];
}
break;
case "namedcalc":
if (block.defaults[0] === undefined) {
modname = "namedcalc";
arg = _("action");
} else {
modname = block.defaults[0];
arg = block.defaults[0];
}
break;
case "namedcalcArg":
if (block.defaults[0] === undefined) {
modname = "namedcalcArg";
arg = _("action");
} else {
modname = block.defaults[0];
arg = block.defaults[0];
}
break;
}
const protoBlock = this.activity.blocks.protoBlockDict[blkname];
if (protoBlock === null) {
// eslint-disable-next-line no-console
console.debug("Could not find block " + blkname);
}
let label = "";
switch (protoBlock.name) {
case "grid":
label = _("grid");
break;
case "text":
label = _("text");
break;
case "drumname":
label = _("drum");
break;
case "effectsname":
label = _("effect");
break;
case "solfege":
label = i18nSolfege("sol");
break;
case "eastindiansolfege":
label = _("sargam");
break;
case "scaledegree2":
label = _("scale degree");
break;
case "modename":
label = _("mode name");
break;
case "invertmode":
label = _("invert mode");
break;
case "voicename":
label = _("voice name");
break;
case "customNote":
label = _("custom pitch");
break;
case "temperamentname":
//TRANS: https://en.wikipedia.org/wiki/Musical_temperament
label = _("temperament");
break;
case "accidentalname":
//TRANS: accidental refers to sharps, flats, etc.
label = _("accidental");
break;
case "notename":
label = "G";
break;
case "intervalname":
label = _("interval name");
break;
case "boolean":
label = _("true");
break;
case "number":
label = NUMBERBLOCKDEFAULT.toString();
break;
case "less":
case "greater":
case "equal":
// Label should be inside _() when defined.
label = protoBlock.staticLabels[0];
break;
case "namedarg":
label = "arg " + arg;
break;
case "outputtools":
label = _("pitch converter");
break;
default:
if (blkname != modname) {
// Override label for do, storein, box, and namedarg
if (blkname === "storein" && block.defaults[0] === _("box")) {
label = _("store in");
} else if (blkname === "storein2") {
if (block.staticLabels[0] === _("store in box")) {
label = _("store in box");
} else {
label = _("store in") + " " + block.staticLabels[0];
}
} else {
label = block.defaults[0];
}
} else if (protoBlock.staticLabels.length > 0) {
label = protoBlock.staticLabels[0];
if (label === "") {
if (blkname === "loadFile") {
label = _("open file");
} else {
label = blkname;
}
}
} else {
label = blkname;
}
}
if (
[
"do",
"nameddo",
"namedbox",
"namedcalc",
"doArg",
"calcArg",
"nameddoArg",
"namedcalcArg"
].indexOf(protoBlock.name) != -1 &&
label != null
) {
if (getTextWidth(label, "bold 20pt Sans") > TEXTWIDTH) {
label = label.substr(0, STRINGLEN) + "...";
}
}
// Don't display the label on image blocks.
if (protoBlock.image) {
label = "";
}
const saveScale = protoBlock.scale;
protoBlock.scale = DEFAULTBLOCKSCALE;
// Finally, the SVGs!
let svg;
let artwork;
let docks;
let height;
switch (protoBlock.name) {
case "namedbox":
case "namedarg":
// So the label will fit...
svg = new SVG();
svg.setScale(protoBlock.scale);
svg.setExpand(60, 0, 0, 0);
svg.setOutie(true);
artwork = svg.basicBox();
docks = svg.docks;
height = svg.getHeight();
break;
case "nameddo":
// So the label will fit...
svg = new SVG();
svg.setScale(protoBlock.scale);
svg.setExpand(60, 0, 0, 0);
artwork = svg.basicBlock();
docks = svg.docks;
height = svg.getHeight();
break;
default:
// eslint-disable-next-line no-case-declarations
const obj = protoBlock.generator();
artwork = obj[0];
docks = obj[1];
height = obj[3];
break;
}
protoBlock.scale = saveScale;
if (protoBlock.disabled) {
artwork = artwork
.replace(/fill_color/g, DISABLEDFILLCOLOR)
.replace(/stroke_color/g, DISABLEDSTROKECOLOR)
.replace("block_label", safeSVG(label));
} else {
artwork = artwork
.replace(/fill_color/g, PALETTEFILLCOLORS[protoBlock.palette.name])
.replace(/stroke_color/g, PALETTESTROKECOLORS[protoBlock.palette.name])
.replace("block_label", safeSVG(label));
}
for (let i = 0; i <= protoBlock.args; i++) {
artwork = artwork.replace("arg_label_" + i, protoBlock.staticLabels[i] || "");
}
return {
blk,
blkname,
modname,
height: STANDARDBLOCKHEIGHT,
actualHeight: height,
label,
artwork,
artwork64:
"data:image/svg+xml;base64," + window.btoa(base64Encode(artwork)),
docks,
image: block.image,
scale: block.scale,
palettename: this.palette.name,
hidden: block.hidden
};
}
}
// Define objects for individual palettes.
class Palette {
constructor(palettes, name) {
this.palettes = palettes;
this.activity = palettes.activity;
this.name = name;
this.model = new PaletteModel(this, palettes, name);
this.visible = false;
this.menuContainer = null;
this.protoList = [];
this.protoContainers = {};
this.protoHeights = {};
this.background = null;
this.size = 0;
this.columns = 0;
this.draggingProtoBlock = false;
this.mouseHandled = false;
this.upButton = null;
this.downButton = null;
this.fadedUpButton = null;
this.fadedDownButton = null;
this.count = 0;
}
hide() {
this.hideMenu();
}
show() {
this.showMenu(true);
}
hideMenu() {
docById(
"palette"
).childNodes[0].style.borderRight = `1px solid ${platformColor.selectorSelected}`;
this._hideMenuItems();
}
showMenu(createHeader) {
const palDiv = docById("palette");
palDiv.childNodes[0].style.borderRight = "0";
if (docById("PaletteBody")) palDiv.removeChild(docById("PaletteBody"));
const palBody = document.createElement("table");
palBody.id = "PaletteBody";
const palBodyHeight = window.innerHeight - this.palettes.top - this.palettes.cellSize - 26;
// palBody.innerHTML = `<thead></thead><tbody style = "display: block; height: ${palBodyHeight}px; overflow: auto; overflow-x: hidden;" id="PaletteBody_items" class="PalScrol"></tbody>`;
palBody.insertAdjacentHTML(
"afterbegin",
`<thead></thead><tbody style = "display: block; width: 100% ; height:auto ; max-height: ${palBodyHeight}px; overflow: auto; overflow-x: hidden;" id="PaletteBody_items" class="PalScrol"></tbody>`
);
palBody.style.minWidth = "180px";
palBody.style.background = platformColor.paletteBackground;
palBody.style.float = "left";
palBody.style.border = `1px solid ${platformColor.selectorSelected}`;
[palBody.childNodes[0], palBody.childNodes[1]].forEach((item) => {
item.style.boxSizing = "border-box";
item.style.padding = "8px";
});
palDiv.appendChild(palBody);
this.menuContainer = palBody;
if (createHeader) {
let header = this.menuContainer.children[0];
header = header.insertRow();
header.style.background = platformColor.selectorSelected;
header.innerHTML =
'<td style ="width: 100%; height: 42px; box-sizing: border-box; display: flex; flex-direction: row; align-items: center; justify-content: space-between;"></td>';
header = header.children[0];
header.style.padding = "8px";
const labelImg = makePaletteIcons(
PALETTEICONS[this.name],
this.palettes.cellSize,
this.palettes.cellSize
);
labelImg.style.borderRadius = "4px";
labelImg.style.padding = "2px";
labelImg.style.backgroundColor = platformColor.paletteBackground;
header.appendChild(labelImg);
const label = document.createElement("span");
label.textContent = toTitleCase(_(this.name));
label.style.fontWeight = "bold";
label.style.color = platformColor.paletteBackground;
header.appendChild(label);
const closeDownImg = document.createElement("span");
closeDownImg.style.height = `${this.palettes.cellSize}px`;
const closeImg = makePaletteIcons(
CLOSEICON.replace("fill_color", platformColor.selectorSelected),
this.palettes.cellSize,
this.palettes.cellSize
);
closeImg.onclick = () => this.hideMenu();
closeImg.onmouseover = () => (document.body.style.cursor = "pointer");
closeImg.onmouseleave = () => (document.body.style.cursor = "default");
closeDownImg.appendChild(closeImg);
header.appendChild(closeDownImg);
}
this._showMenuItems();
}
_hideMenuItems() {
if (this.name === "search" && this.activity.hideSearchWidget !== null) {
this.activity.hideSearchWidget(true);
}
if (docById("PaletteBody")) docById("palette").removeChild(docById("PaletteBody"));
}
_showMenuItems() {
this.model.update();
const paletteList = docById("PaletteBody_items");
const blocks = this.model.blocks;
blocks.reverse();
const protoListScope = [...this.protoList];
if (last(blocks).blkname != last(protoListScope).name) protoListScope.reverse();
for (const blk in blocks) {
const b = blocks[blk];
if (b.hidden) {
continue;
}
const itemRow = paletteList.insertRow();
const itemCell = itemRow.insertCell();
let img = makePaletteIcons(b.artwork);
if (b.image) {
if (["media", "camera", "video"].indexOf(b.blkname) !== -1) {
// Use artwork.js strings as images for:
// cameraPALETTE, videoPALETTE, mediaPALETTE
img = makePaletteIcons(eval(b.blkname + "PALETTE"));
} else {
// or use the plugin image...
img = makePaletteIcons(this.activity.pluginsImages[b.blkname]);
}
}
img.onmouseover = () => (document.body.style.cursor = "pointer");
img.onmouseleave = () => (document.body.style.cursor = "default");
// Image Drag initiates a browser defined drag, which needs to be stoped.
img.ondragstart = () => false;
const down = (event) => {
// (1) prepare to moving: make absolute and on top by z-index
const posit = img.style.position;
const zInd = img.style.zIndex;
img.style.position = "absolute";
img.style.zIndex = 1000;
// move it out of any current parents directly into body
// to make it positioned relative to the body
document.body.appendChild(img);
// centers the img at (pageX, pageY) coordinates
const moveAt = (pageX, pageY) => {
img.style.left = pageX - img.offsetWidth / 2 + "px";
img.style.top = pageY - img.offsetHeight / 2 + "px";
};
const onMouseMove = (e) => {
let x, y;
if (e.type === "touchmove") {
x = e.touches[0].clientX;
y = e.touches[0].clientY;
} else {
x = e.pageX;
y = e.pageY;
}
moveAt(x, y);
};
onMouseMove(event);
document.addEventListener("touchmove", onMouseMove);
document.addEventListener("mousemove", onMouseMove);
const that = this;
const up = (event) => {
document.body.style.cursor = "default";
document.removeEventListener("mousemove", onMouseMove);
img.onmouseup = null;
const x = parseInt(img.style.left);
const y = parseInt(img.style.top);
img.style.position = posit;
img.style.zIndex = zInd;
document.body.removeChild(img);
itemCell.appendChild(img);
if (!x || !y) return;
that._makeBlockFromProtoblock(
protoListScope[blk],
true,
b.modname,
event,
x - that.activity.blocksContainer.x,
y - that.activity.blocksContainer.y
);
};
img.ontouchend = up;
img.onmouseup = up;
};
img.ontouchstart = down;
img.onmousedown = down;
itemCell.style.width = `${img.width}px`;
itemCell.style.paddingRight = `${this.palettes.cellSize}px`;
itemCell.appendChild(img);
}
if (this.palettes.mobile) {
this.hide();
}
}
setupGrabScroll(paletteList) {
let posY, top;
// eslint-disable-next-line no-unused-vars
const mouseUpGrab = (event) => {
// paletteList.onmousemove = null;
document.body.style.cursor = "default";
};
const mouseMoveGrab = (event) => {
const dy = event.clientY - posY;
paletteList.scrollTop = top - dy;
document.body.style.cursor = "grabbing";