- #Screen grabber for google chrome how to
- #Screen grabber for google chrome archive
- #Screen grabber for google chrome full
- #Screen grabber for google chrome code
- #Screen grabber for google chrome zip
#Screen grabber for google chrome full
But in the current case, we have full control on page.html and all scripts in it and that is why, the script, which generates an interface for that should be defined in page.html.
#Screen grabber for google chrome code
The only reason why we did this before, is because we did not have access to the source code of pages of sites, from which we grabbed images. We should define script in a place, where it will be executed, we should not "send scripts". But injecting scripts it's not a true way. We can use chrome.scripting API o inject the script to the tab with page.html and this script will use image urls to generate images list inside the container. Now we need to create a script, which will generate an HTML markup to display a list of images inside the container div on the page.Īt the first glance, we can go the same way as we did in the previous part of this article.
#Screen grabber for google chrome how to
Now, let's remove the temporary alert and define, how to send a list of image URLs to the new page and how to display an interface to manage them. If you run the extension now and press the "Grab Now" button, everything should work as expected: tab is created, then alert displayed, then the tab will be selected and finally popup disappear.
To do this, need to set the selected parameter of createProperties to false: The first thing that needs to do, is to specify in the function to not automatically select the created tab. Only after all actions in the callback are finished, need to manually activate the tab. To fix this, we should create the tab, but not activate it until doing all required actions in the callback. This is what happens when a new tab activates and receives focus. It was destroyed BEFORE the callback was executed. And, in a moment when a new tab appears and activates, the popup window disappeared and is destroyed. So, you press the "Grab Now" button in the popup window which triggers a new tab to appear. However, if you try to run this now, it will not happen, because of one interesting effect, that needs to discuss to understand what happened, and then, understand how to fix this. The following content should be displayed on the new tab:Īs you see in the previous code, we defined the callback function, which later should be used to send urls array to that page, but now it should display an alert with a created tab ID. If you run the extension now and press the 'Grab Now' button on any browser page with images, it should open the page.html on a new tab and activate this tab. At the current stage, this function looks like this:Įnter fullscreen mode Exit fullscreen mode The final step of the popup.js script in the previous part, was the onResult function, which collected an array of image URLs and copied it to a clipboard. So, by the end of this article, if you do all the steps, you will have an extension that looks and works like displayed on the next video.ĭuring this tutorial you will learn important concepts of data exchange between different parts of Chrome Web browser, some new Javascript API functions from chrome browser namespace, concepts of working with data of binary files in Javascript, including ZIP-archives, and finally, I will explain how to prepare the extension for publishing to Chrome Web Store - a global repository of Google Chrome extensions, which will make it available for anyone in the world.
#Screen grabber for google chrome archive
Finally, when pressing the "Download" button on that page, a script will download all selected images, will compress them to an archive with the name images.zip, and will prompt the user to save this archive to a local computer. Then, the user can select which images to download. Instead of copying to the clipboard, the extension will open a web page with a list of images and a "Download" button. In this part, we will change this behavior.
Then, the extension copied this list of URLs to a clipboard.
When a user presses this button, the extension injects a script to a web page, opened on a current browser tab, which grabs all tags from this page, extract URLs of all images, and returns it back to the extension.
So, in the previous part, we created an extension, which displays a popup window with the "GRAB NOW" button.
#Screen grabber for google chrome zip
The Image Grabber is an extension that allows extracting all or selected images from any web page, displayed in the Chrome browser, and downloading them as a single ZIP archive.īefore reading it, you have to read the first part of this article here: This is the second part of the article where I show how to create an Image Grabber Google Chrome Extension. Open a new tab with a local extension page Create and open a web page with a list of images
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