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fix(Page.waitForSelector): "visible" option should check parent visibility (#1354)

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This patch starts checking for boundingClientRect to make sure that the
element is visible.
This commit is contained in:
JoelEinbinder 2017-11-10 15:44:01 -08:00 committed by Andrey Lushnikov
parent 44d1e834a4
commit f8d19e79e7
2 changed files with 26 additions and 2 deletions
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10
lib/FrameManager.js
View File

@ -502,8 +502,16 @@ class Frame {
if (!waitForVisible && !waitForHidden)
return true;
const style = window.getComputedStyle(node);
const isVisible = style && style.display !== 'none' && style.visibility !== 'hidden';
const isVisible = style && style.visibility !== 'hidden' && hasVisibleBoundingBox();
return (waitForVisible === isVisible || waitForHidden === !isVisible);
/**
* @return {boolean}
*/
function hasVisibleBoundingBox() {
const rect = node.getBoundingClientRect();
return !!(rect.top || rect.bottom || rect.width || rect.height);
}
}
}

18
test/test.js
View File

@ -752,7 +752,7 @@ describe('Page', function() {
it('should wait for visible', SX(async function() {
let divFound = false;
const waitForSelector = page.waitForSelector('div', {visible: true}).then(() => divFound = true);
await page.setContent(`<div style='display: none; visibility: hidden;'></div>`);
await page.setContent(`<div style='display: none; visibility: hidden;'>1</div>`);
expect(divFound).toBe(false);
await page.evaluate(() => document.querySelector('div').style.removeProperty('display'));
expect(divFound).toBe(false);
@ -760,10 +760,23 @@ describe('Page', function() {
expect(await waitForSelector).toBe(true);
expect(divFound).toBe(true);
}));
it('should wait for visible recursively', SX(async function() {
let divVisible = false;
const waitForSelector = page.waitForSelector('div#inner', {visible: true}).then(() => divVisible = true);
await page.setContent(`<div style='display: none; visibility: hidden;'><div id="inner">hi</div></div>`);
expect(divVisible).toBe(false);
await page.evaluate(() => document.querySelector('div').style.removeProperty('display'));
expect(divVisible).toBe(false);
await page.evaluate(() => document.querySelector('div').style.removeProperty('visibility'));
expect(await waitForSelector).toBe(true);
expect(divVisible).toBe(true);
}));
it('hidden should wait for visibility: hidden', SX(async function() {
let divHidden = false;
await page.setContent(`<div style='display: block;'></div>`);
const waitForSelector = page.waitForSelector('div', {hidden: true}).then(() => divHidden = true);
await page.waitForSelector('div'); // do a round trip
expect(divHidden).toBe(false);
await page.evaluate(() => document.querySelector('div').style.setProperty('visibility', 'hidden'));
expect(await waitForSelector).toBe(true);
expect(divHidden).toBe(true);
@ -772,6 +785,8 @@ describe('Page', function() {
let divHidden = false;
await page.setContent(`<div style='display: block;'></div>`);
const waitForSelector = page.waitForSelector('div', {hidden: true}).then(() => divHidden = true);
await page.waitForSelector('div'); // do a round trip
expect(divHidden).toBe(false);
await page.evaluate(() => document.querySelector('div').style.setProperty('display', 'none'));
expect(await waitForSelector).toBe(true);
expect(divHidden).toBe(true);
@ -780,6 +795,7 @@ describe('Page', function() {
await page.setContent(`<div></div>`);
let divRemoved = false;
const waitForSelector = page.waitForSelector('div', {hidden: true}).then(() => divRemoved = true);
await page.waitForSelector('div'); // do a round trip
expect(divRemoved).toBe(false);
await page.evaluate(() => document.querySelector('div').remove());
expect(await waitForSelector).toBe(true);