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  • Committer: V. Keith Hughitt
  • Date: 2009-07-30 13:13:26 UTC
  • mfrom: (233.1.59 helioviewer)
  • Revision ID: hughitt1@kore-20090730131326-69sq8n2z24748la5
2009/07/30 post-merge save

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lib/helioviewer/MovieBuilderOld.js
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/**
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 * @fileoverview Contains the definition of a class for generating and displaying movies.
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 * @author <a href="mailto:vincent.k.hughitt@nasa.gov">Keith Hughitt</a>
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 *
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 */
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/*global MoviesBuilder, Class, UIElement, Event, document, window, Shadowbox, getOS, Ajax */
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//TODO: pass in bit-rate depending upon codec chosen! Xvid?
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var MovieBuilder = Class.create(UIElement, 
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        /** @lends MovieBuilder.prototype */
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        {
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        /**
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         * @description Default MovieBuilder options
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         */
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        defaultOptions: {
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                active      : false,
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                url         : "api/index.php",
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                minZoomLevel: 13, //can relax for single layer movies...
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                numFrames   : 40,
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                frameRate   : 8,
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                sharpen     : false,
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                edgeEnhance : false,
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                format      : {win: "asf", mac: "mov", linux: "mp4"}
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        },
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        /**
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     * @constructs
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     * @description Creates a new MovieBuilder
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     * @param {Object} options Custom MovieBuilder options
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     */
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    initialize: function (options) {
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                Object.extend(this, this.defaultOptions);
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                Object.extend(this, options);
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        var self = this;
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        //Quick Movie Event Handler
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                Event.observe(this.id, 'click', function () {
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                        if (!self.active) {
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                                var hv = self.controller,
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                                        hqFormat, displayRange, xhr;
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                                self.active = true;
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                                // Chose an optimal codec based on User's OS
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                                hqFormat = self.format[getOS()];
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                                // Get range of tiles to use
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                                displayRange = hv.viewport.displayRange();
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                                //Ajax Request
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                                xhr = new Ajax.Request(self.url, {
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                                        method: 'POST',
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                                        parameters: {
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                                                action:    "buildQuickMovie",
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                                layers:    "SOHEITEIT304,SOHLAS0C20WL",
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                                startDate: hv.date.getTime() / 1000,
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                                zoomLevel: hv.viewport.zoomLevel, //Math.max(hv.viewport.zoomLevel, self.minZoomLevel),
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                                numFrames: self.numFrames,
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                                frameRate: self.frameRate,
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                                edges:     self.edgeEnhance,
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                                sharpen:   self.sharpen,
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                                format:    hqFormat,
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                                xRange:    displayRange.xStart + ", " + displayRange.xEnd,
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                                                yRange:    displayRange.yStart + ", " + displayRange.yEnd
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                                        },
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                                        onComplete: function (transport) {
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                                                // Let user know that video is read
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                                                var linkId = self.controller.messageConsole.link('', 'Quick-Video ready! Click here to start watching.');
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                                                self.active = false;
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                                                Event.observe(linkId, 'click', function () {
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                                                        Shadowbox.open({
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                                                        player:  'iframe',
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                                                        title:   'Helioviewer Movie Player',
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                                                        height:   650,
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                                                        width:    550,
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                                                        content: self.url + '?action=playMovie&format=' + hqFormat + '&url=' + transport.responseJSON
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                                                        });
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                                                });
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                                        }
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                                });
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                        }
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                });
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    }
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});