Utilize Dojo to programmatically showcase an image

Question

Utilize Dojo to programmatically showcase an image

I'm facing an issue while trying to programmatically display an image using dojo. I have tried using both "dijit/Dialog" and "dojox/image/Lightbox". However, when using the Dialog method, instead of displaying the image, some random characters are shown in the dialog box. On the other hand, when using Lightbox, the image is always displayed on the second click.

imageDialog = new Dialog({
  title:  "my image",
  preload: false,
  href: "/ajax/fileStreamer"
});
imageDialog.show();

The code above only shows some characters, even if a relative path to the image is provided as input.

When using Lightbox with a relative path, the image displays properly. However, when using an image stream, the image is only displayed after the second click.

javascript ajax dojo

Answer 1

Answer №1

Lightbox automatically assumes that the file is an image and adds the <img /> tag internally to the href attribute. On the other hand, Dialog does not do this, so you need to manually include the <img /> tag in the content attribute instead. Depending on your desired outcome, there are several options available:

Using ContentPane:

        require(['dijit/layout/ContentPane'], function (ContentPane) {
            var theImage = new ContentPane({content: '<img  src="yourimageurl"/>'}, 'theImage');
            theImage.startup();
        });

Using Dialog (which extends ContentPane):

        require(['dijit/Dialog'], function (Dialog) {
            var theImage = new Dialog({title: 'the image', content: '<img  src="yourimageurl"/>'});
            theImage.startup();
            theImage.show();
        });

Utilizing Lightbox (requires Lightbox CSS, utilizes LightboxDialog which extends Dialog internally):

        require(['dojox/image/Lightbox'], function (Lightbox) {
            var theImage = new Lightbox({title: 'the image', href: 'yourimageurl'});
            theImage.startup();
            theImage.show();
        });

Using LightboxDialog (similar to Lightbox but exposes the instance of LightboxDialog):

        require(['dojox/image/Lightbox'], function (Lightbox) {
            var theDialog = new dojox.image.LightboxDialog({});
            theDialog.startup();
            theDialog.show({title: 'the image', href: 'yourimageurl'});
        });

Answer 2

Lightbox automatically assumes that the file is an image and adds the <img /> tag internally to the href attribute. On the other hand, Dialog does not do this, so you need to manually include the <img /> tag in the content attribute instead. Depending on your desired outcome, there are several options available:

Using ContentPane:

        require(['dijit/layout/ContentPane'], function (ContentPane) {
            var theImage = new ContentPane({content: '<img  src="yourimageurl"/>'}, 'theImage');
            theImage.startup();
        });

Using Dialog (which extends ContentPane):

        require(['dijit/Dialog'], function (Dialog) {
            var theImage = new Dialog({title: 'the image', content: '<img  src="yourimageurl"/>'});
            theImage.startup();
            theImage.show();
        });

Utilizing Lightbox (requires Lightbox CSS, utilizes LightboxDialog which extends Dialog internally):

        require(['dojox/image/Lightbox'], function (Lightbox) {
            var theImage = new Lightbox({title: 'the image', href: 'yourimageurl'});
            theImage.startup();
            theImage.show();
        });

Using LightboxDialog (similar to Lightbox but exposes the instance of LightboxDialog):

        require(['dojox/image/Lightbox'], function (Lightbox) {
            var theDialog = new dojox.image.LightboxDialog({});
            theDialog.startup();
            theDialog.show({title: 'the image', href: 'yourimageurl'});
        });

Answer 3

Answer №2

Insert your image html code into the content attribute of your dialog box.

Here is a sample demonstration:

require([
  'dojo/domReady!'
], function() {
  require(["dijit/Dialog", "dijit/form/Button", "dojo/domReady!"], function(Dialog, Button) {
    var myDialog = new Dialog({
      title: "Creating Dialog Box Programmatically",
      style: "width: 300px"
    });

    var myButton = new Button({
      label: "Click to Open!",
      onClick: function() {
        myDialog.set("content", '<img class="lightbox-image" style="" src="https://placeimg.com/640/480/any">' + new Date() + "!");
        myDialog.show();
      }
    }, "progbutton");
  });
});

<link rel="stylesheet" href="//ajax.googleapis.com/ajax/libs/dojo/1.12.1/dijit/themes/claro/claro.css" />

<script>
  window.dojoConfig = {
    parseOnLoad: false,
    async: true
  };
</script>

<script src="//ajax.googleapis.com/ajax/libs/dojo/1.12.1/dojo/dojo.js">
</script>

<body class="claro">
  <p>Upon clicking the button, the dialog box will appear. Note that this time there is no existing content inside the dialog node:</p>
  <button id="progbutton" type="button">Show me!</button>
</body>

Answer 4

Insert your image html code into the content attribute of your dialog box.

Here is a sample demonstration:

require([
  'dojo/domReady!'
], function() {
  require(["dijit/Dialog", "dijit/form/Button", "dojo/domReady!"], function(Dialog, Button) {
    var myDialog = new Dialog({
      title: "Creating Dialog Box Programmatically",
      style: "width: 300px"
    });

    var myButton = new Button({
      label: "Click to Open!",
      onClick: function() {
        myDialog.set("content", '<img class="lightbox-image" style="" src="https://placeimg.com/640/480/any">' + new Date() + "!");
        myDialog.show();
      }
    }, "progbutton");
  });
});

<link rel="stylesheet" href="//ajax.googleapis.com/ajax/libs/dojo/1.12.1/dijit/themes/claro/claro.css" />

<script>
  window.dojoConfig = {
    parseOnLoad: false,
    async: true
  };
</script>

<script src="//ajax.googleapis.com/ajax/libs/dojo/1.12.1/dojo/dojo.js">
</script>

<body class="claro">
  <p>Upon clicking the button, the dialog box will appear. Note that this time there is no existing content inside the dialog node:</p>
  <button id="progbutton" type="button">Show me!</button>
</body>

Utilize Dojo to programmatically showcase an image

Answer №1

Answer №2

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