I'm a very basic coding person that needs something to work, but IDK how. I have a website where I have 4 images. When you hover over those img they become slightly darker, but I wish there was a way to show some text as well (preview of how it should work: https://imgur.com/a/r5cOW2R)
Here's the link to my GitHub code: https://github.com/Ezzol/HCI-Portfolio
Can anyone explain to me what I need to do to add that hovereffect you can see in my design at the imgur link?
You would want to use the CSS hover event. Here's a good example on how to do that.
https://www.w3schools.com/howto/howto_css_image_overlay.asp
you probably need to use javascript as well, and do an EventListener to tell when it is being hovered over, and then use .style to change it, for example:
var text = document.getElementById("text");
var exampleimg = document.getElementById("exampleimg");
exampleimg.addEventListener("mouseover", examplechange);
exampleimg.addEventListener("mouseout", examplechangeback);
function examplechange(event)
{
text.style.display = "block";
}
function examplechangeback()
{
text.style.display = "none";
}
add a h1/h2/h3/p element to your page, and give it the id "text" then style it how you want and set the display to none.
Related
I'm trying to implement a TinyMCE button that will apply the style of the selection to the entire box. I'm having trouble, though, reading the style of the selection when the selection is buried in a span in a span in a paragraph. Let's consider 'color' for example. Below I have a box with some text and I've selected "here" in the paragraph and made it red.
The HTML for the paragraph is now:
The code behind my button to apply the style of the selection to the box is
var selected_color = $(ed.selection.getNode()).css('color');
console.log("color pulled is ", selected_color);
$(ed.bodyElement).css('color', selected_color);
It doesn't work because the color pulled is black, not red, so the third line just re-applies the black that's already there. (If I replace selected_color in the third line with 'blue' everything goes blue.) So the problem is pulling the color of the current selection.
Does anyone know how I can do this reliably, no matter how buried the selection is?
Thanks for any help.
I also noticed somewhat a strange behavior up and there, with selections of nested span's and div's, but honestly i'm not able to recognize if this is a bug of TinyMCE, a browser issue or a combination of both (most probably).
So, waiting for some more information from you (maybe also your plugin code) in the meanwhile i realized two proposal to achieve what you want: the first plugin behaves like the format painter in word, the second is simply applying the current detected foreground color to the whole paragraph.
As you move throug the editor with the keyboard or mouse, you will see the current detected foreground color highlighted and applied as background to the second plugin button.
Key point here are two functions to get the styles back from the cursor position:
function findStyle(el, attr) {
var styles, style, color;
try {
styles = $(el).attr('style');
if(typeof styles !== typeof undefined && styles !== false) {
styles.split(";").forEach(function(e) {
style = e.split(":");
if($.trim(style[0]) === attr) {
color = $(el).css(attr);
}
});
}
} catch (err) {}
return color;
}
function findForeColor(node) {
var $el = $(node), color;
while ($el.prop("tagName").toUpperCase() != "BODY") {
color = findStyle($el, "color");
if (color) break;
$el = $el.parent();
}
return color;
}
The try...catch block is needed to avoid some occasional errors when a selected text is restyled. If you look at the TinyMCE sorce code you will notice a plenty of timing events, this is a unavoidable and common practice when dealing with styles and css, even more with user interaction. There was a great job done by the authors of TinyMCE to make the editor cross-browser.
You can try out the first plugin in the Fiddle below. The second plugin is simpler as the first one. lastForeColor is determined in ed.on('NodeChange'), so the code in button click is very easy.
tinymce.PluginManager.add('example2', function(ed, url) {
// Add a button that opens a window
ed.addButton('example2', {
text: '',
icon: "apply-forecolor",
onclick: function() {
if(lastForeColor) {
var applyColor = lastForeColor;
ed.execCommand('SelectAll');
ed.fire('SelectionChange');
ed.execCommand('forecolor', false, applyColor);
ed.selection.collapse(false);
ed.fire('SelectionChange');
}
return false;
}
});
});
Moreover: i think there is a potential issue with your piece of code here:
$(ed.bodyElement).css('color', selected_color);
i guess the style should be applied in a different way, so in my example i'm using standard TinyMCE commands to apply the foreground color to all, as i wasn't able to exactly convert your screenshot to code. Please share your thoughts in a comment.
Fiddle with both plugins: https://jsfiddle.net/ufp0Lvow/
deblocker,
Amazing work! Thank you!
Your jsfiddle did the trick. I replaced the HTML with what was in my example and changed the selector in tinymce.init from a textarea to a div and it pulls the color out perfectly from my example. The modified jsfiddle is at https://jsfiddle.net/79r3vkyq/3/ . I'll be studying and learning from your code for a long time.
Regarding your question about
$(ed.bodyElement).css('color', selected_color);
the divs I attach tinymce to all have ids and the one the editor is currently attached to is reported in ed.bodyElement. I haven't had any trouble using this but I have no problem using your
ed.execCommand('SelectAll');
ed.fire('SelectionChange');
ed.execCommand('forecolor', false, applyColor);
Thanks again! Great job!
I'm trying to find out how to have a item change color when clicking different colors button.
Some thing like in the following site
http://www.imprintablefashion.com/cgi-bin/brand/site.w?location=olc/cobrand-product.w&category=3&prb=&srb=&mill=&shade=&color=&product=8398&frames=no&target=main&sponsor=004974&nocache=77902
I'm using WordPress. If anyone can point me to the right direction that would be great. Any
idea of examples would be greatly appreciated.
You actually need to have several images. Each time you press on item/button, you will change the image in the image place holder in your HTML to the desired one.
// JS
function changeImg()
{
// some logic like swicth to select the image
document.getElememtById("image_cont").innerHTML = "<img src='" + some_image + "'/>";
}
// Html
<div id="image_cont"></div>
<button onclick="changeImg()">Change the Image</button>
// so on
Then you can use some logic in your function to select the image you desire.
Seeking a solution to my problem...
I partially found an answer from another thread on here, using this script
$(function () {
$(".myclass").hover(function ()
{}, function ()
{
$(".myclass>li").fadeTo(200, 1)
});
$(".myclass>li").hoverIntent(function ()
{
$(this).attr("id", "current");
$(this).siblings().fadeTo(200, .6);
$(this).fadeTo(300, 1)
}, function ()
{
$(".myclass>li").removeAttr("id");
$(this).fadeTo(200, 1)
})})
When an item in the list is hovered, the script fades all other items out. Original demo is here http://jsbin.com/usobe
This works OK on my site, though the list ( a grid of thumbnails) is part of a bigger slider script, which loads "previews" via ajax. When a list item is clicked a hidden section expands on the page, and the slider script assigns the list item a class "active".
When the hidden section is open I would like the activated thumbnail to remain at 1 opacity, while the rest are faded to .6, exactly as it is with the hover effect using the script above. What I am trying to achieve becomes obvious when you click a thumbnail to activate the ajax script. Is it possible to use the active class to make this happen i.e. if class is not active set to .6 opacity?
Thanks in advance
----EDIT
Thanks everyone for suggestions - I am not having much luck so far! Using the code above, would it be possible to modify it so that when a list item is clicked it holds the specified levels of opacity? That would do nicely, I think. Then I could use onclick I guess to fade all items back to full opacity when the hidden div is closed.
I'm trying to guess how your code work, for what I understand you should do something like this:
// this is the selector that gets the click on the thumbnail
$('li.item').click(function() {
// fade all the thumbnails to op 1.0
$('#li.item').css('opacity', '.6');
// let the active thumbnail to 1.0
$(this).css('opacity', 1);
//show your hidden div
});
Then, when you close the hidden div:
$('div#hiddenDiv').onClose(function()
// about to close
$(this).fadeTo('fast', 1);
});
You could use an on click targeting the zetaThumbs li elements, set the current target to 1 and its siblings to .6
$('.zetaThumbs li').click(function(){
$(this).css({'opacity':1}).siblings().css({'opacity':.6});
})
Is there a way to darken or lighten an image or actually any display object on mouse over and then restore it back on mouse out? I would prefer to use filters if possible just because I am already applying a filter on mouse over and removing it on mouse out. I would then be able to add it to the filters list. If not that's fine. In my code I'm using a Flex 4 Spark Image component.
You should use ColorTransform for this. Below is shown how you can utilise this.
image.addEventListener(MouseEvent.MOUSE_OVER, checkTransform);
image.addEventListener(MouseEvent.MOUSE_OUT, checkTransform);
private function checkTransform(e:event):void
{
if(e.type == MouseEvent.MOUSE_OVER)
image.transform.colorTransform = new ColorTransform(0.5, 0.5, 0.5); //multiplies all RGB-values by 0.5
else
image.transform.colorTransform = new ColorTransform(1, 1, 1); //restores to default image
}
this should do the trick. For more information on ColorTransform: http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/geom/ColorTransform.html?filter_flash=cs5&filter_flashplayer=10.2&filter_air=2.6
The easiesy way to do is, create a colorfilter, and apply this colorfilter to the image on rollover and remove the filter on rollout.
For details visit :
http://cookbooks.adobe.com/post_Convert_images_to_grayscale_using_ActionScript_-12769.html
Thanks
I have a chart that displays a tooltip (string) when hovered over. Is there a way to control the delay/time the tooltip is displayed to the user?
<asp:Chart runat="server" ID="Chart2" Width="340px" Height="265px">
<!--Define Things in here-->
</asp:Chart>
Backend:
//define what rec is
string tooltip = rec;
Chart2.ToolTip = tooltip;
I just came up with a pretty simple solution to this classic problem with the help of some Javascript I borrowed from here: http://bonrouge.com/~js_tooltip
Asp.NET renders tooltips as a title attribute on the actual HTML page generated. You can take advantage of this fact to apply whatever style you like to the tooltip by overriding it with two very simple javascript functions.
function showTooltip(control) {
var ttext = control.title;
var tt = document.createElement('SPAN');
var tnode = document.createTextNode(ttext);
tt.appendChild(tnode);
control.parentNode.insertBefore(tt, control.nextSibling);
tt.className = "tooltipCss";
control.title = "";
}
function hideTooltip(control) {
var ttext = control.nextSibling.childNodes[0].nodeValue;
control.parentNode.removeChild(control.nextSibling);
control.title = ttext;
}
Next you need to design your css for your tooltip:
position:absolute;
border:1px solid gray;
width:300px;
margin:1em;
padding:3px;
background: Red;
Finally you need to wire up the JavaScript to your control
Chart2.Attributes.Add("onmouseover", "showTooltip(this)");
Chart2.Attributes.Add("onmouseout", "hideTooltip(this)");
Hope this helps.... I've been looking for a SIMPLE way of doing Tooltips for all my Asp.Net stuff for ages. I don't like to declare my Tooltip code in separate spans or whatever as this is really no good for my dynamically generated stuff. Anyway I just wanted to add this somewhere online. Hope it helps someone out.
Sorry, but probably not.
Most tooltips are a browser feature, and display either the alt tag of an img, or the title tag of most elements. So the control of how long that tooltip displays is going to vary from browser to browser.
It's possible that the tooltip is under your control, and is an html element displayed with javascript on mouseover, or the charts and the tooltip might be in Flash or Silverlight, but if that's the case we'd need to see your code.
I'm guessing probably not. If you need more flexibility I would recommend going with a jQuery tooltip solution.
To add to Ravendarksky's answer: I used his code but if I moved my mouse during the mouseout event over the tooltip content, IE would issue an unhandled exception (no issues in Chrome, I did not check Firefox):
0x800a138f - JavaScript runtime error: Unable to get property 'nodeValue' of undefined or null reference
So I simply wrapped the implementation of hideTooltip in a conditional checking for null and all was well in IE [and Chrome]:
function hideTooltip(control) {
if (control.nextSibling.childNodes[0] != null) {
var ttext = control.nextSibling.childNodes[0].nodeValue;
control.parentNode.removeChild(control.nextSibling);
control.title = ttext;
}
Or you can use HoverMenuExtender of asp.net. You can also modify the pop up content/design.
Code reference sample here: http://asp-net-example.blogspot.com/2009/11/ajax-hovermenuextender-how-to-use.html