70 lines
1.8 KiB
JavaScript
70 lines
1.8 KiB
JavaScript
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"use strict";
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var Address = require("../wType/address");
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var Controller = require("./controller");
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var File = require("./file/file");
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var Image = Controller.inherit({
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"className": "Image",
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"constructor": function(addr) {
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Controller.fn.constructor.call(this, addr);
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this.data = undefined;
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this._hasCtrl = false;
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this._fileCtrl = undefined;
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this._need = 0;
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this.addHandler("get");
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},
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"dontNeedData": function() {
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--this._need;
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},
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"getMimeType": function () {
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return this._fileCtrl.getMimeType();
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},
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"hasData": function() {
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if (this._hasCtrl) {
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return this._fileCtrl.hasData();
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}
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return false;
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},
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"_h_get": function(ev) {
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var data = ev.getData();
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if (this._hasCtrl) {
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this.removeForeignController(this._fileCtrl);
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this._fileCtrl.destructor();
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delete this._fileCtrl;
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this._hasCtrl = false;
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}
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var strId = data.at("data").toString();
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if (strId !== "0") {
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this._fileCtrl = new File(new Address(["images", strId]));
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this.addForeignController("Corax", this._fileCtrl);
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this._fileCtrl.on("data", this._onControllerData, this);
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this._hasCtrl = true;
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if (this._need > 0) {
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this._fileCtrl.needData();
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}
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} else {
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this.trigger("clear");
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}
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},
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"needData": function() {
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if (this._need === 0 && this._hasCtrl) {
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this._fileCtrl.needData();
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}
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++this._need;
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},
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"_onControllerData": function() {
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this.data = this._fileCtrl.data;
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this.trigger("data");
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}
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});
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module.exports = Image;
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