I came across this short video about Tracing paint operations in Chrome Canary
I have tried all the options and I can't get to these brilliant features.
1. Paints (snapshots):
2. Layers view:
The video is 1 year old now (it is from April 2013).
Are these features still available?
If yes, how to get to them?
I was able to show layers and snapshots using the following settings. Note that on the left pane the fully set of options is not visible in the screenshot, however the only item that is checked on the left pane is 'gpu'. All options on the right pane are visible. A smaller number of settings is likely possible:
Here's a snapshot of what I see. Note that the snapshot includes a full rendering of the webpage:
My Chrome version is 36.0.1985.125 (Official Build 283153)
Related
I'm trying to learn how to use the Network Tab in Chrome Developer Tools.
Here is a screenshot of the Network tab:
As you can see, in the right side of the image there is a timeline graph. The graph ends at 1 second, although the "longest" event takes 11 ms. I want to change the scale of the graph that it'll end at 20 ms. Do you know how to do it?
Here is a visual guide for #wOxxOm comment:
I'm trying to view the emulation panel but I can't find it anywhere. Everywhere I've looked it says to open an overrides panel to find it but that's missing too. I also can't find any helpful or new answers to my question. Pressing esc only opens up console and there's nothing in settings that seems to help. Can someone please tell me how to reach it?
Instead of emulation in the drawer Device Mode is now offered for emulating other devices. It provides many benefits over the old emulation mode, such as taking into account the meta viewport tag on render. So what you see is much closer to what you'd get in real life.
I'm using 51.0.2704.103 (64-bit) on a Mac.
Cmd-Opt-i to open console.
Click the button with three vertical dots and the very top right of the Developer Tools window.
Select: more tools > sensors:
If the console draw is not already open it will open. Either way there should now be a sensors tab next to the console tab on the console draw. Click this tab and follow your nose from there.
Note that this tab had an x by it. Hitting this will hide the sensors tab and next time you use it you will need to follow the steps above again to reinstate it.
So I'm trying to develop a webapplication and I'm trying to check it out on mobile.
I'm currently using Cordova and JQuery Mobile together with ripple.js to view my application in my browser.
The first issue (as far as I know) is that ripple.js will work best in Google Chrome, so this is my only test platform.
The second issue is that when I toggle Device Mode on, it doesn't show me the black dot (cursor) when I enter the rendered version.
I'll explain my situation or a scenario:
As an example I'll go to http://google.com
I press F12 to enter developer mode
I click the Toggle Device Mode button
I will see my cursor, until I enter the generated mobile canvas. While I would normally see a black transparant dot, I now see nothing.
I can however click and drag like I would normally do, but I can't see what I'm doing.
The things I already tried:
Reset all the flags back to default
Reset all developer tool settings to default
(edit) Installed a previous version of Chrome AND Chromium
So question is, how do I get my cursor back?
Extra: I'm using version 49.0.2623.87 m, but that's not related since my co-worker, has the same version and he sees the cursor.
(edit) currently I'm using the mouse option where I press Ctrl to see the circle which indicates where my cursor is, but this really has to be a temp solution.
(edit) I fixed it by doing a combination of things. So I'm not sure which exact thing fixed it. I removed a few programs that I installed after it still worked. I uninstalled about 4 of them. Also I did an update of my graphics card and then did a reboot. So it could be either the graphics card update, the software uninstall and/or the reboot.
I had the same issue. (note this question might be a duplicate of this one)
Following the advice on the Chrome forum here I changed the Quantization Range in my Intel HD Graphics Control Panel from "Default Range" to "Full Range". The touch pointer (grey circle) appeared immediately.
If that doesn't help you may have to change refresh rate too. Changing from 59p Hz to 60p Hz or some other refresh rate might help.
This should also help.
Open the mouse control panel.
Select the Pointer Options tab in the Mouse Properties window.
Then enable Display pointer trails option.
In case you don't like or are getting annoyed, like me, due to the trailer. Move the slider to the Short position and the trailer becomes near to non-existent or invisible.
I fixed it myself, yet I'm not exactly sure how I did it. I edited my original post and added the solution in the last paragraph.
Had the same on my Asus laptop with Chrome 66
Resolution that worked for me
Graphics Control Panel > Display > General Settings > Scaling > Change to Scale full screen.
OFF your Asus Eye Care Switcher.
I am posting this as answer because above mentioned answer didn't work for me but I had this issue when I had a monitor attached to my laptop, for development work. I played around with my display settings and discovered that IF the scale on my second monitor did not match the scale on my laptop, the mobile development mode cursor would disappear. (windows 10)
If this is an issue for anyone just go into Display settings -> Display -> Scale and Layout --> make sure that both your laptop/desktop matches the display scale of your second monitor.
Hope this will help.
I am using Info.display("", "My message");to display GXT Info box on screen but it is observed that the info box is not rendered properly (with a transparent background not readable properly) in some of user system.
This issue is solved when user clear browser cache and delete temp folder files and start a new session, but the problem is replicated again after some time interval.What could be the reason? I am not able to debug because Message div is deleted in a fraction of 3-4 seconds.I am using sencha 3.0 version.
Your problem sounds similar to the one described in this Sencha GTX 3.x bug report:
http://www.sencha.com/forum/showthread.php?282275-Info-popup-is-transparent-in-IE
You may wish to follow its progress if this issue is still important to you.
Google Chrome shows a gray circle cursor when dev tools is active. Why is this happening and how do I make this stop?
Nov 29th, 2017 Update:
Quick Update brought to you by #Howdy_McGee.
Chrome 62 you have to Add Device Type, there's no longer an option for Show Device Type.
Why is this happening?
As Randy Hall points out below "This cursor indicates a "touch", such as your finger, for emulating touch events in (the) Chrome browser."
July 20th, 2017 Update: (version 59.0.3071.115) Just checking in again, looks like the below is still valid even through a bunch of Chrome updates. They have changed the wording of Show device type to Add device type. I've changed the wording below, but the image does not reflect the change.
They have also changed the way the device type settings work, explained below.
Once in responsive mode (via F12, then ctrl + shift + m) you will need to select the settings section indicated by the 3 grey circles, then select Add device type. Once you do this, a new drop down will appear next to the dimensions area, select Mobile (no touch). I imagine they did this so that you don't have to keep it on desktop and adjust the user agent type to a mobile device as I've described below.
What do the Device Types mean?
As of today (July 20th, 2017), the same settings for device type exist (as shown in the image above), but they work a bit differently than previously before:
Mobile: Now scales the content on the page when resizing the window (to accurately simulate pixel density on a mobile device). The circle that replaces your mouse, simulates a screen touch action when clicking (full fledged mobile development / testing).
Mobile (no touch): Also scales the content on the page when resizing the window, but continues to use your regular mouse cursor for your click actions.
Desktop: Does not scale content, uses regular mouse cursor (full fledged desktop development / testing).
Desktop (touch): Also does not scale content, but replaces your regular mouse cursor with a circle that will simulate screen touches on click.
But I still want to emulate a specific mobile device...
There is still a way to override the user-agent with this Mobile (no touch) setting set. When you're looking at your console (brought up via F12), you'll see the 3 vertical circles there next to the console tab, click them and bring up Network Conditions. Within this section you'll see that User agent is set to Select Automatically, just turn this off and use the drop-down to change to the user-agent you want to emulate as. This will allow you to emulate as a specific mobile device.
This cursor indicates a "touch", such as your finger, for emulating touch events in Chrome browser.
In the dev tools window, click the settings (gear) button in the bottom right. Go to the Overrides tab and disable Emulate touch events.
I'm posting this here because it took me a LONG while to find it via searches, and I know others have been having the same issue.
Update via Paulo Manuel Santos' comment:
From Chrome 32 the Emulation is configured in a different place. This is how I get to it: Elements, press Esc, Emulation, Sensors, Emulate touch screen
At july 2017 this option calls Add device type:
On Chrome 50 it seems the Emulation option is not available..
My workaround was to add a custom device with the 'Mobile (no touch)' option..
When you click this ICON to activate (change to blue); The Grey Circle CURSOR will appear as representing finger touch for devices, and Deactivating this will simulate desktop version and Showing POINTER Cursor.
None of the above answers worked for me... So after clicking the aforementioned 3 dots in the bottom right corner, I selected Settings and then Restore defaults and reload
It's not a clean solution, but I had just to choose a new dock side position and then I was back to work
Just deselect the Toggle device toolbar
https://i.stack.imgur.com/3lcFl.png