Currently, I am developing a web application that integrates Extjs components, PHP, and MySQL. My main goal is to ensure that my application looks correct on the iPad. Are there any specific CSS rules or meta tags that I should be implementing for optimal display?
Your inquiry lacks specificity. Here are some suggestions for creating a web application on iOS:
<meta> tag to indicate to mobile Safari the width of your site, like this:<meta name = "viewport" content = "width = 320, initial-scale = 2.3, user-scalable = no"><meta> tags by mobile Safari, visit this link.Although I have not had the opportunity to test it yet, I have crafted a script that triggers the contextmenu event on an element following a prolonged press lasting 1.5 seconds or longer. Feel free to give it a try.
UPDATE: Finally, I managed to examine it, and I can confirm that it operates as desired. I opted to reduce the delay from 1500 ms to 1200 ms since the initial delay felt excessively long for my preferences.
(function() {
var EM = Ext.EventManager,
body = document.body,
activeTouches = {},
onTouchStart = function(e, t) {
var be = e.browserEvent;
Ext.id(t);
if(be.touches.length === 1) {
activeTouches[t.id] = fireContextMenu.defer(1200, null, [e, t]);
} else {
cancelContextMenu(e, t);
}
},
fireContextMenu = function(e, t) {
var touch = e.browserEvent.touches[0];
var me = document.createEvent("MouseEvents");
me.initMouseEvent("contextmenu", true, true, window,
1, // detail
touch.screenX,
touch.screenY,
touch.clientX,
touch.clientY,
false, false, false, false, // key modifiers
2, // button
null // relatedTarget
);
t.dispatchEvent(me);
},
cancelContextMenu = function(e, t) {
clearTimeout(activeTouches[t.id]);
};
if(navigator.userAgent.match(/iPad/i) != null) {
Ext.onReady(function() {
EM.on(body, "touchstart", onTouchStart);
EM.on(body, "touchmove", cancelContextMenu);
EM.on(body, "touchend", cancelContextMenu);
});
}
})();
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