CODEWITHSUNDEEP
javascriptjqueryhtml
irongirl
irongirl

Reputation: 935

Make a picture as a link

How can I make an image in a canvas to act as a link? I am not able to put < a href > tag on the < image > tag as I dont want it to be displayed first until the user click on a button.

Is there any line of code I need to insert in the javascript?

window.onload = function () {
    var endCan = document.getElementById("endCan");
    var end = endCan.getContext("2d");
    var img = document.getElementById("end");
    end.drawImage(img, 0, 0, img.width / 2, img.height / 2);
};

<img id="end" style="display: none;" src="img/WellDone_Rectangle.png"/>
<canvas id="endCan" class="wrapper" width="1000" height="600"></canvas>

$(".buttonNext6").click(function () {
    $("#endCan").fadeIn();
});

Upvotes: 2

Views: 78

Answers (2)

Joey Gough
Joey Gough

Reputation: 3103

window.onload = function () {
    var endCan = document.getElementById("endCan");
    var end = endCan.getContext("2d");
    var img = document.getElementById("end");
    end.drawImage(img, 0, 0, img.width / 2, img.height / 2);
};
//$(".buttonNext6").click(function () {
//    $("#endCan").fadeIn();
//});

function canvasCallback() {
    console.log('clicked')
}
<img id="end" style="display: none;" src="https://picsum.photos/200/300"/>
<canvas onclick="canvasCallback()" id="endCan" class="wrapper" width="1000" height="600"></canvas>

Upvotes: 0

Reinstate Monica Cellio
Reinstate Monica Cellio

Reputation: 26143

You need to add a click event handler to the canvas, and then when it's clicked you check the co-ordinates to see if it was clicked where your image was drawn.

Here's an example, using a rectangle drawn on a canvas...

var endCan = document.getElementById("endCan");
var endCtx = endCan.getContext("2d");
endCtx.rect(10, 20, 150, 100);
endCtx.fill();

endCan.addEventListener("click", function(e) {
    if (e.clientX >= 10 && e.clientX <= 160 &&
        e.clientY >= 20 && e.clientY <= 120) {
        alert("clicked");
    }
});
<canvas id="endCan" class="wrapper" width="500" height="300"></canvas>

Upvotes: 2

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