react-img-editor-en
Version:
Image Annotation Tool for React
238 lines • 11.7 kB
JavaScript
function _extends() { return _extends = Object.assign ? Object.assign.bind() : function (n) { for (var e = 1; e < arguments.length; e++) { var t = arguments[e]; for (var r in t) ({}).hasOwnProperty.call(t, r) && (n[r] = t[r]); } return n; }, _extends.apply(null, arguments); }
function _defineProperties(e, r) { for (var t = 0; t < r.length; t++) { var o = r[t]; o.enumerable = o.enumerable || !1, o.configurable = !0, "value" in o && (o.writable = !0), Object.defineProperty(e, _toPropertyKey(o.key), o); } }
function _createClass(e, r, t) { return r && _defineProperties(e.prototype, r), t && _defineProperties(e, t), Object.defineProperty(e, "prototype", { writable: !1 }), e; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == typeof i ? i : i + ""; }
function _toPrimitive(t, r) { if ("object" != typeof t || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != typeof i) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
function _classCallCheck(a, n) { if (!(a instanceof n)) throw new TypeError("Cannot call a class as a function"); }
function _callSuper(t, o, e) { return o = _getPrototypeOf(o), _possibleConstructorReturn(t, _isNativeReflectConstruct() ? Reflect.construct(o, e || [], _getPrototypeOf(t).constructor) : o.apply(t, e)); }
function _possibleConstructorReturn(t, e) { if (e && ("object" == typeof e || "function" == typeof e)) return e; if (void 0 !== e) throw new TypeError("Derived constructors may only return object or undefined"); return _assertThisInitialized(t); }
function _assertThisInitialized(e) { if (void 0 === e) throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); return e; }
function _isNativeReflectConstruct() { try { var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); } catch (t) {} return (_isNativeReflectConstruct = function _isNativeReflectConstruct() { return !!t; })(); }
function _getPrototypeOf(t) { return _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function (t) { return t.__proto__ || Object.getPrototypeOf(t); }, _getPrototypeOf(t); }
function _inherits(t, e) { if ("function" != typeof e && null !== e) throw new TypeError("Super expression must either be null or a function"); t.prototype = Object.create(e && e.prototype, { constructor: { value: t, writable: !0, configurable: !0 } }), Object.defineProperty(t, "prototype", { writable: !1 }), e && _setPrototypeOf(t, e); }
function _setPrototypeOf(t, e) { return _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function (t, e) { return t.__proto__ = e, t; }, _setPrototypeOf(t, e); }
import Konva from "konva";
import Plugin from "./Plugin";
import { transformerStyle } from "../common/constants";
import { uuid } from "../common/utils";
var Text = /*#__PURE__*/function (_Plugin) {
function Text() {
var _this;
_classCallCheck(this, Text);
_this = _callSuper(this, Text, arguments);
_this.name = "text";
_this.iconfont = "iconfont icon-text";
_this.title = "Text";
_this.params = ["fontSize", "color"];
_this.defaultParamValue = {
fontSize: 12,
color: "#F5222D"
};
_this.shapeName = "text";
_this.transformer = null;
_this.selectedNode = null;
_this.removeTextareaBlurModal = function () {
var textareaBlurModal = document.getElementById("textareaBlurModal");
if (textareaBlurModal) {
textareaBlurModal.removeEventListener("click", _this.removeTextareaBlurModal);
document.body.removeChild(textareaBlurModal);
}
};
// 防止 textarea blur 时触发 stage click 事件
_this.addTextareaBlurModal = function (stage) {
if (document.getElementById("textareaBlurModal")) return;
var container = stage.container().getBoundingClientRect();
var textareaBlurModal = document.createElement("div");
textareaBlurModal.id = "textareaBlurModal";
textareaBlurModal.style.position = "fixed";
textareaBlurModal.style.left = container.left + "px";
textareaBlurModal.style.top = container.top + "px";
textareaBlurModal.style.width = container.width + "px";
textareaBlurModal.style.height = container.height + "px";
textareaBlurModal.style.zIndex = "999";
document.body.appendChild(textareaBlurModal);
textareaBlurModal.addEventListener("click", _this.removeTextareaBlurModal);
};
_this.createTextarea = function (stage, drawLayer, transformer, textNode, pubSub) {
var textarea = document.createElement("textarea");
textarea.value = textNode.text();
textarea.style.position = "absolute";
textarea.style.left = textNode.x() + "px";
textarea.style.top = textNode.y() + "px";
textarea.style.width = textNode.width() + "px";
textarea.style.height = textNode.height() + "px";
textarea.style.lineHeight = String(textNode.lineHeight());
textarea.style.padding = textNode.padding() + "px";
textarea.style.margin = "0px";
textarea.style.fontSize = textNode.fontSize() + "px";
textarea.style.color = textNode.fill();
textarea.style.fontFamily = textNode.fontFamily();
textarea.style.border = "none";
textarea.style.outline = "none";
textarea.style.overflow = "hidden";
textarea.style.background = "none";
textarea.style.resize = "none";
textarea.style.zIndex = "1000";
textarea.style.boxSizing = "content-box";
textarea.addEventListener("keyup", function (e) {
textNode.text(e.target.value);
drawLayer.draw();
textarea.style.width = textNode.width() + "px";
textarea.style.height = textNode.height() + "px";
});
textarea.addEventListener("blur", function () {
if (textarea.value !== "") {
textNode.text(textarea.value);
transformer.hide();
textNode.show();
} else {
textNode.destroy();
transformer.destroy();
}
textarea.parentNode.removeChild(textarea);
drawLayer.draw();
_this.removeTextareaBlurModal();
pubSub.pub("PUSH_HISTORY", textNode);
});
return textarea;
};
_this.enableTransform = function (drawEventParams, node) {
var stage = drawEventParams.stage,
drawLayer = drawEventParams.drawLayer;
if (!_this.transformer) {
_this.transformer = new Konva.Transformer(_extends(_extends({}, transformerStyle), {
enabledAnchors: [],
padding: 2
}));
drawLayer.add(_this.transformer);
_this.transformer.attachTo(node);
node.on("mouseenter", function () {
stage.container().style.cursor = "move";
});
node.on("mouseleave", function () {
stage.container().style.cursor = "text";
});
stage.container().style.cursor = "move";
}
node && node.draggable(true);
drawLayer.draw();
};
_this.disableTransform = function (drawEventParams, node, remove) {
var stage = drawEventParams.stage,
drawLayer = drawEventParams.drawLayer,
pubSub = drawEventParams.pubSub;
if (_this.transformer) {
_this.transformer.remove();
_this.transformer = null;
}
if (node) {
node.draggable(false);
node.off("mouseenter");
node.off("mouseleave");
stage.container().style.cursor = "text";
if (remove) {
node.hide();
// 使用隐藏节点占位并覆盖堆栈中已有节点
pubSub.pub("PUSH_HISTORY", node);
node.remove();
node.remove();
}
}
_this.selectedNode = null;
drawLayer.draw();
};
_this.onEnter = function (drawEventParams) {
var stage = drawEventParams.stage,
drawLayer = drawEventParams.drawLayer;
var container = stage.container();
container.style.cursor = "text";
container.tabIndex = 1; // make it focusable
container.focus();
container.addEventListener("keyup", function (e) {
if (e.key === "Backspace" && _this.selectedNode) {
_this.disableTransform(drawEventParams, _this.selectedNode, true);
drawLayer.draw();
}
});
};
_this.onClick = function (drawEventParams) {
var event = drawEventParams.event,
stage = drawEventParams.stage,
drawLayer = drawEventParams.drawLayer,
paramValue = drawEventParams.paramValue,
pubSub = drawEventParams.pubSub;
if (event.target.name && event.target.name() === "text") {
// 之前没有选中节点或者在相同节点之间切换点击
if (!_this.selectedNode || _this.selectedNode._id !== event.target._id) {
_this.selectedNode && _this.disableTransform(drawEventParams, _this.selectedNode);
_this.enableTransform(drawEventParams, event.target);
_this.selectedNode = event.target;
}
return;
} else if (_this.selectedNode) {
_this.disableTransform(drawEventParams, _this.selectedNode);
return;
}
var fontSize = paramValue && paramValue.fontSize ? paramValue.fontSize : _this.defaultParamValue.fontSize;
var color = paramValue && paramValue.color ? paramValue.color : _this.defaultParamValue.color;
var startPos = stage.getPointerPosition();
if (!startPos) return;
var textNode = new Konva.Text({
id: uuid(),
name: "text",
x: startPos.x,
y: startPos.y - 10,
fontSize: fontSize,
fill: color,
padding: 3,
lineHeight: 1.1
});
textNode.on("dragend", function () {
pubSub.pub("PUSH_HISTORY", this);
});
// 由于 konvajs 的文本渲染和浏览器渲染的样式不一致，所以使用 Transformer 的边框来代替 textarea 自身的边框
var textareaTransformer = new Konva.Transformer({
node: textNode,
enabledAnchors: [],
rotateEnabled: false,
borderStroke: color
});
drawLayer.add(textNode);
drawLayer.add(textareaTransformer);
textNode.hide();
drawLayer.draw();
var textarea = _this.createTextarea(stage, drawLayer, textareaTransformer, textNode, pubSub);
stage.container().appendChild(textarea);
textarea.focus();
_this.addTextareaBlurModal(stage);
textNode.on("dblclick dbltap", function (e) {
// dblclick 前会触发两次 onClick 事件，因此要清楚 onClick 事件里的状态
_this.disableTransform(drawEventParams, _this.selectedNode);
e.cancelBubble = true;
var textarea = _this.createTextarea(stage, drawLayer, textareaTransformer, textNode, pubSub);
stage.container().appendChild(textarea);
textarea.focus();
textNode.hide();
textareaTransformer.show();
drawLayer.draw();
_this.addTextareaBlurModal(stage);
});
};
_this.onLeave = function (drawEventParams) {
var stage = drawEventParams.stage;
stage.container().style.cursor = "default";
_this.removeTextareaBlurModal();
_this.disableTransform(drawEventParams, _this.selectedNode);
};
_this.onNodeRecreate = function (drawEventParams, node) {
var pubSub = drawEventParams.pubSub;
node.on("dragend", function () {
pubSub.pub("PUSH_HISTORY", this);
});
};
return _this;
}
_inherits(Text, _Plugin);
return _createClass(Text);
}(Plugin);
export { Text as default };