Databases
StackOverflow2013
Postsdbo
POHow to pass mouse coordinates to backing bean when clicking on an image
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POHow to pass mouse coordinates to backing bean when clicking on an image
    primarykey
    data
    text
    <p>I have tried various methods of getting the mouse coordinates into the backing bean when a user clicks on an image. I can get the coordinates in the javascript, it then calls the ajax listener, but the parameters are not in the request.</p> <p>my js:</p> <pre><code>if (!cis) var cis = {} if (!cis.sarwinds) { var focusLostTimeout cis.sarwinds = { errorHandler: function(data) { alert("Error occurred during Ajax call: " + data.description) }, updateZoomValues: function(input, event) { jsf.ajax.addOnError(cis.sarwinds.errorHandler) var offset = jQuery(input).offset(); jsf.ajax.request(input, event, { render: "imagePan2 message", x: event.pageX - offset.left, y: event.pageY - offset.top }) }, getGraphicImageId: function(input) { var clientId = new String(input.name) var lastIndex = clientId.lastIndexOf(":") return clientId.substring(0, lastIndex) + ":imagePan2" } } } </code></pre> <p>My jsf page element:</p> <pre><code> &lt;h:graphicImage id="imagePan2" library="images" styleClass="wind_map" name="testImage.jpg" style="#{SarWindsImagesBean.imageStyle('testImage.jpg')}"&gt; &lt;f:ajax event="click" onevent="cis.sarwinds.updateZoomValues(this, event)" listener="#{SarWindsImagesBean.zoomInClick}" render="imagePan2 message"/&gt; &lt;/h:graphicImage&gt; </code></pre> <p>My Backing bean:</p> <pre><code> public void zoomInClick(AjaxBehaviorEvent event) { double width; double height; double top; double left; double mouseX; double mouseY; String fileName = "testImage"; Map&lt;String, String&gt; reqParams = FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap(); mouseX = Double.parseDouble(reqParams.get("x")); mouseY = Double.parseDouble(reqParams.get("y")); width = imageItems.get(fileName).getImageWidth() * 1.1; height = imageItems.get(fileName).getImageHeight() * 1.1; // We need the mouse position on the image here, and we need to calculate top = mouseY - ((mouseY - imageItems.get(fileName).getImageTop()) * 1.1); left = mouseX - ((mouseX - imageItems.get(fileName).getImageLeft()) * 1.1); if (this.imageLock == false){ imageItems.put(fileName, new SarWindImageItem(width, height, top, left)); } else { Iterator&lt;String&gt; it = imageItems.keySet().iterator(); while (it.hasNext()) { String key = (String)it.next(); imageItems.put(key, new SarWindImageItem(width, height, top, left)); } } } </code></pre> <p>The reqParams are empty. </p> <p>Dan</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USDanpoleary
    1. USDanpoleary
    plurals
    1. PL
      singulars
      1. LTLinked
    1. PL
      singulars
      1. LTLinked
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POHow to pass mouse coordinates to backing bean when clicking on an image
      1. This table or related slice is empty.
      1. VTUpMod
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload