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/*
* ==VimperatorPlugin==
* @name blinkelement.js
* @description blink specified elements.
* @description-ja 指定した要素を点滅させる。
* @author janus_wel <janus_wel@fb3.so-net.ne.jp>
* @version 0.11
* @minversion 2.0pre 2008/10/16
* ==/VimperatorPlugin==
*
* LICENSE
* New BSD License
*
* USAGE
* :blink {element[s] object}
* :bl
* -> blink specified element[s].
*
* :noblink
* :nobl
* -> clear blink all elements.
*
* SETTING
* blink_element_interval: interval time. default is 800 msec.
* blink_element_color: color for blink. default is red.
* blink_element_sparecolor: use this value when target's background color
* is same as color specified blink_element_color
* or default. default is cyan.
*
* EXAMPLE
* let blink_element_interval='500'
* let blink_element_color='green'
* let blink_element_sparecolor='purple'
*
* :bl content.document.getElementsByTagName('A');
* :bl buffer.evaluateXPath('//a');
* :nobl
* */
( function () {
let intervalList = [];
const interval = liberator.globalVariables.blink_element_interval || 800;
const color = liberator.globalVariables.blink_element_color || 'red';
const spareColor = liberator.globalVariables.blink_element_sparecolor || 'cyan';
function setBlink(element) {
let originalColor = element.style.backgroundColor || 'inherit';
let blinkColor = (originalColor == color) ? spareColor : color;
element.style.backgroundColor = blinkColor;
let state = false;
let intervalId = setInterval( function () {
element.style.backgroundColor = state ? blinkColor : originalColor;
state = !state;
}, interval);
intervalList.push({
id: intervalId,
element: element,
color: originalColor,
});
}
function clearBlink(i) {
i.element.style.backgroundColor = i.color;
clearInterval(i.id);
}
commands.addUserCommand(
['blink', 'bl'],
'blink',
function (args) {
let arg = args.string;
let element;
try {
element = eval(arg);
}
catch (e) {
liberator.log(e);
liberator.echoerr(e);
}
if (!element) {
liberator.echoerr('specify element[s]');
return;
}
if (element instanceof HTMLCollection) {
for (let [, e] in Iterator(element)) setBlink(e);
}
else if (element instanceof XPathResult) {
for (let e in element) setBlink(e);
}
else if ('style' in element) {
setBlink(element);
}
else {
liberator.echoerr('specify element[s]');
}
},
{
completer: function (filter) completion.javascript(filter),
}
);
commands.addUserCommand(
['noblink', 'nobl'],
'no blink',
function () {
while (intervalList.length) clearBlink(intervalList.pop());
},
{}
);
})()
// vim: set sw=4 ts=4 et;
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