com.risevision.viewer.client.controller.ViewerWidgetController.java Source code

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Here is the source code for com.risevision.viewer.client.controller.ViewerWidgetController.java

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// Copyright  2010 - May 2014 Rise Vision Incorporated.
// Use of this software is governed by the GPLv3 license
// (reproduced in the LICENSE file).

package com.risevision.viewer.client.controller;

import com.google.gwt.http.client.URL;
import com.google.gwt.user.client.Command;
import com.google.gwt.user.client.Window;
import com.risevision.common.client.info.PlaceholderInfo;
import com.risevision.common.client.info.PlaylistItemInfo;
import com.risevision.common.client.info.PresentationInfo;
import com.risevision.common.client.utils.PresentationParser;
import com.risevision.viewer.client.ViewerEntryPoint;
import com.risevision.viewer.client.utils.ViewerHtmlUtils;

public class ViewerWidgetController implements ViewerControllerInterface {
    private PlaceholderInfo placeholderInfo;
    private PlaylistItemInfo playlistItem;
    private String phName, htmlName, presFrame;
    private boolean isReady = false;
    private boolean isPlaying = false;
    //   @SuppressWarnings("unused")
    //   private boolean canPlay, canStop, canPause, canReportReady, canReportDone;
    private Command gadgetReadyCommand;
    private Command gadgetDoneCommand;

    private static final String WIDGET_SCRIPT = "<script><!--\n" + "try {"
            + "   updateWidget('%s1', '%s2', '%s3', '%s4');"
            + "} catch(err) { parent.writeToLog('updateWidget call - %s2 - ' + err.message); }" + "\n//-->"
            + "</script>";

    public ViewerWidgetController(PlaceholderInfo placeholderInfo, PlaylistItemInfo playlistItem, String phName,
            String htmlName, Command gadgetReadyCommand, Command gadgetDoneCommand) {
        this.placeholderInfo = placeholderInfo;
        this.playlistItem = playlistItem;
        this.phName = phName;

        this.htmlName = htmlName;

        // add first letter of Gadget type to the name
        if (playlistItem != null && playlistItem.getType() != null && playlistItem.getType().length() > 1)
            this.htmlName = htmlName + playlistItem.getType().substring(0, 1);

        this.gadgetReadyCommand = gadgetReadyCommand;
        this.gadgetDoneCommand = gadgetDoneCommand;

        ViewerHtmlUtils.registerGadget(this.htmlName, this);
    }

    public void updateHtml(PresentationInfo presentation) {
        if (playlistItem != null && PlaylistItemInfo.TYPE_WIDGET.equals(playlistItem.getType())) {
            updateHtmlWidget(presentation);
        }
    }

    private void updateHtmlWidget(PresentationInfo presentation) {
        String transition = "none";

        String widgetUrl = updateUrlParams(playlistItem.getObjectData());

        if (placeholderInfo != null) {
            transition = placeholderInfo.getTransition();
        }

        addWidgetScript(presentation, widgetUrl, phName, htmlName, transition);
    }

    public static void addWidgetScript(PresentationInfo presentation, String url, String containerName,
            String htmlName, String transition) {
        String tagHtml = WIDGET_SCRIPT.replace("%s1", url).replace("%s2", containerName).replace("%s3", htmlName)
                .replace("%s4", transition);

        PresentationParser.addScriptTag(presentation, tagHtml);

    }

    private String updateUrlParams(String urlParams) {
        int height, width;
        //      int top = 0, left = 0;
        //      urlParams = removeIdParameter(urlParams);
        //      urlParams = addVersionNumber(urlParams);

        if (placeholderInfo.getWidthUnits().equals("%")) {
            width = (int) ((placeholderInfo.getWidth() / 100.0) * Window.getClientWidth());
        } else {
            width = (int) placeholderInfo.getWidth();
        }

        if (placeholderInfo.getHeightUnits().equals("%")) {
            height = (int) ((placeholderInfo.getHeight() / 100.0) * Window.getClientHeight());
        } else {
            height = (int) placeholderInfo.getHeight();
        }

        //"&pid=test1&up_id=test1"
        //      urlParams += "&pid=" + htmlName;
        urlParams += urlParams.contains("?") ? "&" : "?";
        urlParams += "up_id=" + htmlName;
        urlParams += "&parent=" + URL.encodeQueryString(Window.Location.getHref());
        urlParams += "&up_rsW=" + width;
        urlParams += "&up_rsH=" + height;

        String displayId = ViewerEntryPoint.getDisplayId();
        if (displayId != null && !displayId.isEmpty()) {
            urlParams += "&up_displayId=" + displayId;
        }

        urlParams = urlParams.replace("'", "\\'");

        return urlParams;
    }

    public void setReady(String presFrame, boolean canPlay, boolean canStop, boolean canPause,
            boolean canReportReady, boolean canReportDone) {
        this.presFrame = presFrame;
        //      this.canPause = canPlay;
        //      this.canStop = canStop;
        //      this.canPause = canPause;
        //      this.canReportReady = canReportReady;
        //      this.canReportDone = canReportDone;
        //      
        if (!isReady) {
            isReady = true;
            if (gadgetReadyCommand != null) {
                gadgetReadyCommand.execute();
            }
            //         // if GadgetReadyCommand is null, than this is a single Gadget 
            //         // in placeholder (no ready command, just Start playing right away)
            //         else if (!isPlaying) {
            //            play(true);
            //         }
        }
    }

    public void setError(String presFrame, String reason) {
        // catch gadget error (not implemented)
    }

    public void setDone() {
        if (isPlaying) {
            if (gadgetDoneCommand != null) {
                isPlaying = false;
                gadgetDoneCommand.execute();
            } else {
                stop(false);
                play(false);
            }
        }
    }

    public void play(boolean show) {
        if (!isPlaying) {
            isPlaying = true;
            //         if (isReady) {
            ViewerHtmlUtils.playCommand(presFrame, htmlName, show);
            //         }
        }
    }

    public void stop(boolean hide) {
        //      if (isPlaying) {
        isPlaying = false;
        ViewerHtmlUtils.stopCommand(presFrame, htmlName, hide);
        //      }
    }

    public void pause(boolean hide) {
        // removed isPlaying check (since pause can be called on a "paused" item to hide it)
        //      if (isPlaying) {
        isPlaying = false;
        ViewerHtmlUtils.pauseCommand(presFrame, htmlName, hide);
        //      }
    }

    public void setReady(boolean isReady) {
        this.isReady = isReady;
    }

    public boolean isReady() {
        return isReady;
    }

    public PlaylistItemInfo getItem() {
        return playlistItem;
    }
}