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/*
 * Copyright 2015 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
*/

package org.jbpm.designer.client;

import java.util.Iterator;
import java.util.Map;

import com.google.gwt.core.client.GWT;
import com.google.gwt.dom.client.Style;
import com.google.gwt.i18n.client.LocaleInfo;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.Frame;
import com.google.gwt.user.client.ui.RequiresResize;
import org.gwtbootstrap3.client.ui.Modal;
import org.jbpm.designer.client.resources.i18n.DesignerEditorConstants;
import org.uberfire.ext.widgets.common.client.common.BusyPopup;

public class DesignerWidgetView
        extends Composite
        implements DesignerWidgetPresenter.View,
                   RequiresResize {

    private Frame inlineFrame = GWT.create(Frame.class);
    private String editorID = "";
    private Map editorParameters;
    private DesignerEditorConstants constants = DesignerEditorConstants.INSTANCE;

    public DesignerWidgetView() {
        setupInlineFrame();
        initWidget(inlineFrame);
    }

    private void setupInlineFrame() {
        inlineFrame.setWidth( "85%" );
        inlineFrame.setHeight( "600" );
        inlineFrame.getElement().setPropertyBoolean( "webkitallowfullscreen", true );
        inlineFrame.getElement().setPropertyBoolean( "mozallowfullscreen", true );
        inlineFrame.getElement().setPropertyBoolean( "allowfullscreen", true );
        inlineFrame.getElement().getStyle().setBorderWidth( 0, Style.Unit.PX );
        inlineFrame.getElement().getStyle().setOverflowX( Style.Overflow.AUTO );
        inlineFrame.getElement().getStyle().setOverflowY( Style.Overflow.AUTO );
        inlineFrame.getElement().getStyle().setOverflow( Style.Overflow.AUTO );
        inlineFrame.getElement().getStyle().setWidth(100, Style.Unit.PCT);
        inlineFrame.getElement().getStyle().setHeight(680, Style.Unit.PX);
    }

    @Override
    public void setEditorID( final String editorID ) {
        this.editorID = editorID;
        inlineFrame.getElement().setId(editorID);
        inlineFrame.getElement().setAttribute("name", editorID);
    }

    @Override
    public void setEditorParamters( final Map editorParameters ) {
        this.editorParameters = editorParameters;
        // fix locale if needed (for "default")
        String locale = LocaleInfo.getCurrentLocale().getLocaleName();
/*        if(locale == null) {
            locale = "en";
        } else {
            if(locale.equals("default")) {
                locale = "en";
            }
            if(locale.indexOf("_") > 0) {
                locale = locale.split("_")[0]; // just use the language (ommit country and variant)
            }
            if(!(locale.equalsIgnoreCase("en") || locale.equalsIgnoreCase("ja"))) {
                // we currently only support english and japanese. default to english
                locale = "en";
            }
        }
*/
        String paramsStr = "";
        Iterator paramsIter = this.editorParameters.keySet().iterator();
        while ( paramsIter.hasNext() ) {
            String paramsKey = paramsIter.next();
            paramsStr += "&" + paramsKey + "=" + editorParameters.get( paramsKey );
        }
        // add timestamp to end of url for caching
        paramsStr += "&ms=" + System.currentTimeMillis();
        inlineFrame.getElement().setAttribute( "src", GWT.getModuleBaseURL() + "inlineeditor.jsp?locale=" + locale + paramsStr );
    }

    @Override
    public String getEditorID() {
        return this.editorID;
    }

    @Override
    public boolean confirmClose() {
        return Window.confirm( constants.ConfirmCloseBusinessProcessEditor() );
    }

    public native void setProcessSaved( String editorID ) /*-{
        if ($wnd.document.getElementById(editorID) && $wnd.document.getElementById(editorID).contentWindow.ORYX && $wnd.document.getElementById(editorID).contentWindow.ORYX.Editor) {
            $wnd.document.getElementById(editorID).contentWindow.ORYX.PROCESS_SAVED = true;
        }
    }-*/;

    public native boolean getIsReadOnly( String editorID ) /*-{
        if ($wnd.document.getElementById(editorID) && $wnd.document.getElementById(editorID).contentWindow.ORYX && $wnd.document.getElementById(editorID).contentWindow.ORYX.Editor) {
            return $wnd.document.getElementById(editorID).contentWindow.ORYX.READONLY;
        }
    }-*/;

    public native boolean getIsViewLocked( String editorID ) /*-{
        if ($wnd.document.getElementById(editorID) && $wnd.document.getElementById(editorID).contentWindow.ORYX && $wnd.document.getElementById(editorID).contentWindow.ORYX.Editor) {
            return $wnd.document.getElementById(editorID).contentWindow.ORYX.VIEWLOCKED;
        }
    }-*/;

    public native void setProcessUnSaved( String editorID ) /*-{
        if ($wnd.document.getElementById(editorID) && $wnd.document.getElementById(editorID).contentWindow.ORYX && $wnd.document.getElementById(editorID).contentWindow.ORYX.Editor) {
            $wnd.document.getElementById(editorID).contentWindow.ORYX.PROCESS_SAVED = false;
        }
    }-*/;

    public native boolean canSaveDesignerModel( String editorID ) /*-{
        if ($wnd.document.getElementById(editorID) && $wnd.document.getElementById(editorID).contentWindow.ORYX && $wnd.document.getElementById(editorID).contentWindow.ORYX.Editor && (typeof($wnd.document.getElementById(editorID).contentWindow.ORYX.Editor.checkIfSaved) == "function")) {
            return $wnd.document.getElementById(editorID).contentWindow.ORYX.Editor.checkIfSaved();
        }
        return true;
    }-*/;

    public native void raiseEventSave( String editorID ) /*-{
        if ($wnd.document.getElementById(editorID) && $wnd.document.getElementById(editorID).contentWindow.ORYX && $wnd.document.getElementById(editorID).contentWindow.ORYX.Editor && (typeof($wnd.document.getElementById(editorID).contentWindow.ORYX.Editor.checkIfSaved) == "function")) {
            $wnd.document.getElementById(editorID).contentWindow.ORYX.EDITOR._pluginFacade.raiseEvent({
                type: "designereventdosave"
            });
        }
    }-*/;


    public native void raiseEventCheckSave( String editorID, String pathURI ) /*-{
        if ($wnd.document.getElementById(editorID) && $wnd.document.getElementById(editorID).contentWindow.ORYX && $wnd.document.getElementById(editorID).contentWindow.ORYX.Editor && (typeof($wnd.document.getElementById(editorID).contentWindow.ORYX.Editor.checkIfSaved) == "function")) {
            $wnd.document.getElementById(editorID).contentWindow.ORYX.EDITOR._pluginFacade.raiseEvent({
                type: "designereventdochecksave",
                pathuri: pathURI
            });
        }
    }-*/;

    public native void raiseAskOpenInXMLEditor( String editorID ) /*-{
        if ($wnd.document.getElementById(editorID) && $wnd.document.getElementById(editorID).contentWindow.ORYX && $wnd.document.getElementById(editorID).contentWindow.ORYX.Editor ) {
            $wnd.document.getElementById(editorID).contentWindow.ORYX.LOADING_ERRORS = true;
        }
    }-*/;

    public native void raiseEventSaveCancel( String editorID ) /*-{
        if ($wnd.document.getElementById(editorID) && $wnd.document.getElementById(editorID).contentWindow.ORYX && $wnd.document.getElementById(editorID).contentWindow.ORYX.Editor && (typeof($wnd.document.getElementById(editorID).contentWindow.ORYX.Editor.checkIfSaved) == "function")) {
            $wnd.document.getElementById(editorID).contentWindow.ORYX.EDITOR._pluginFacade.raiseEvent({
                type: "designereventcancelsave"
            });
        }
    }-*/;

    public native void raiseEventUpdateLock( String editorID ) /*-{
        if ($wnd.document.getElementById(editorID) && $wnd.document.getElementById(editorID).contentWindow.ORYX && $wnd.document.getElementById(editorID).contentWindow.ORYX.Editor && (typeof($wnd.document.getElementById(editorID).contentWindow.ORYX.Editor.checkIfSaved) == "function")) {
            $wnd.document.getElementById(editorID).contentWindow.ORYX.EDITOR._pluginFacade.raiseEvent({
                type: "designerupdatelock"
            });
        }
    }-*/;

    public native void raiseEventReload( String editorID ) /*-{
        if ($wnd.document.getElementById(editorID) && $wnd.document.getElementById(editorID).contentWindow.ORYX && $wnd.document.getElementById(editorID).contentWindow.ORYX.Editor && (typeof($wnd.document.getElementById(editorID).contentWindow.ORYX.Editor.checkIfSaved) == "function")) {
            $wnd.document.getElementById(editorID).contentWindow.ORYX.EDITOR._pluginFacade.raiseEvent({
                type: "designereventreloads"
            });
        }
    }-*/;

    @Override
    public void onResize() {
        int height = getParent().getOffsetHeight();
        int width = getParent().getOffsetWidth();

        setPixelSize(width,height);

        inlineFrame.setWidth( "100%" );
        inlineFrame.setHeight( Math.max(0, height - 5) + "px" );
    }

    public void setSize( final int width,
                         final int height ) {
        if ( getParent().getParent().getParent() instanceof Modal ) {
            final Modal modal = (Modal) getParent().getParent().getParent();
            modal.setWidth( width + "px" );
            modal.setHeight( height + "px" );
            modal.getElement().getStyle().setMarginLeft( ( width / 2 ) * -1, Style.Unit.PX );
            modal.getElement().getStyle().setMarginTop( ( height / 2 ) * -1, Style.Unit.PX );
            getParent().getParent().removeStyleName( "modal-body" );
            super.setSize( width + "px", ( height - 51 ) + "px" );
        }
    }

    @Override
    public void showBusyIndicator( final String message ) {
        BusyPopup.showMessage( message );
    }

    @Override
    public void hideBusyIndicator() {
        BusyPopup.close();
    }
}